CN112804874A - Water supply system - Google Patents

Abstract

A water supply system for taking water from chickens raised in a cage (60), comprising a water supply pipe (3) disposed along a cage row (70), a water supply unit (4) having a plurality of water supply pipes, a pressure reducing device (2) for reducing the water pressure of water supplied from a water supply source and allowing the water to flow into the water supply pipe, an opening/closing valve (5) for switching between a closed mode for closing the downstream end of the water supply pipe and a discharge mode for communicating the downstream end of the water supply pipe with a discharge pipe (6), a cleaning panel having a panel material (35) and a supply pipe (36) and having air permeability for covering an air inlet (21) of a chicken house (10) and supplying water to the upper surface of the panel material, the cleaning panel cooling air passing through the air inlet with the panel material, the panel material is a panel material which is changed into low temperature by the vaporization heat of water, the water storage tank is arranged below the cleaning panel and receives the water flowing down in the panel material, the water in the water storage tank is conveyed to the supply pipe by the pump, and the water flowing in the discharge pipe is guided to the water storage tank.

Description

Water supply system

Technical Field

The present invention relates to a water supply system for water intake by chickens raised in a chicken-raising facility.

Background

In a large-scale chicken raising facility in which a plurality of chickens are raised in a plurality of cages, water supply to the chickens is also being made labor-saving. Generally, a water supply pipe is disposed along a cage row in which a plurality of cages are arranged in parallel in a horizontal direction, and water having a reduced water pressure is supplied from a water supply source such as a water supply line to the water supply pipe. A plurality of water supply devices are provided on the water supply pipe, and a downstream end of the water supply pipe is closed. The water supply device has a flow path that is opened and closed by a valve body that is vertically movable with respect to the main body. The valve body is pushed up by the chicken mouth, the flow path is opened, and the chicken can drink when flowing down. The water flowing out through the water supply device, i.e., the amount of water for the chicken drink, is newly supplied from the water supply source to the water supply pipe.

In the above-described configuration, since water is likely to stay in the water supply pipe, there is a problem that the water is heated when the temperature is high, such as in summer. The water feeder is configured such that water does not flow out if the chicken itself does not operate, but the amount of water intake decreases because the chicken tends not to drink warm water when the temperature is high. If the intake of water is reduced, the health of the chicken deteriorates, and the degree of retention of water increases with the reduction in the consumption of water, and falls into a vicious circle in which water further warms up.

Therefore, the following water supply device has been proposed: water supplied to the water supply pipe is circulated through the storage tank, and if the water temperature increases, the water in the storage tank is sent to the cooling device by the pump, and the cooled water is returned to the storage tank (see patent document 1). This water supply device has an advantage of supplying cooled water to the water supply pipe even when the air temperature is high, but has a problem that installation costs increase and operation costs increase because a large number of necessary structures such as a tank, a cooling device, a pump for supplying water from the tank to the water supply pipe, and the like are required, and a complicated structure is obtained. In addition, since drinking water is circulated, high attention is required to prevent water contamination.

A water supply device has been proposed in which a water supply pipe has a two-layer structure of an inner pipe and an outer pipe, a water feeder is provided in the outer pipe, drinking water is made to flow between the outer pipe and the inner pipe, and cooling water is made to flow into the inner pipe, so that heat exchange is performed between water inside the inner pipe and water outside the inner pipe (see patent document 2). The cooling water is circulated through the storage tank, and the water in the storage tank is sent to the cooling device based on the detection of the temperature, and the cooled water is returned to the storage tank. This water supply device, like the device of patent document 1, has a problem in that installation costs increase and operation costs also increase because a large number of necessary structures such as a tank, a cooling device, a pump for sending water from the tank to the cooling device, a pump for sending water from the tank to an inner pipe, and the like are required, and a complicated structure is obtained. On this basis, a special water supply pipe of a two-layer structure is used. Therefore, the cost is high, and in the existing chicken raising facility, a large-scale process is required for exchanging the water supply pipe with the conventional water supply pipe, and the introduction is not easy.

In order to solve this problem, a water supply device has been proposed in which a cooling pipe is externally disposed along a water supply pipe and the cooling pipe and the water supply pipe are covered with a heat insulating member (see patent document 3). The same thing as the device ofpatent document 2 is that cooling water is circulated through a storage tank, the water in the storage tank is sent to a cooling device based on the detection of the temperature, and the cooled water is returned to the storage tank. Therefore, a large number of structures are required, and the structure is complicated, which similarly increases the cost. Unlike the device ofpatent document 2, the device has an advantage that an existing water supply pipe can be used as it is, but the work of arranging a cooling pipe along the water supply pipe and covering the cooling pipe with a heat insulating material is complicated. In a large-scale chicken raising facility, cage rows in which a plurality of cages are arranged in parallel in the horizontal direction are stacked in a plurality of stages and a plurality of rows are arranged in parallel, so that the number of water supply pipes is considerably large and the respective lengths are also long. Therefore, the work of arranging the cooling pipes along all the water supply pipes and covering both the pipes with the heat insulating material has to be a relatively large-scale work.

[ Prior Art document ]

[ patent document ]

[ patent document 1 ] Japanese patent laid-open No. 2005-237241

[ patent document 2 ] Japanese patent laid-open No. 2009-296943

[ patent document 3 ] Japanese patent laid-open No. 2015-80415

Disclosure of Invention

Problems to be solved by the invention

[ problem to be solved by the invention ]

In view of the above circumstances, the present invention has been made to provide a water supply system capable of suppressing an increase in water temperature due to retention of water in a water supply pipe through which drinking water of chickens raised in a cage flows, with a simple configuration.

Means for solving the problems

In order to solve the above problems, the water supply system of the present invention is a water supply system for collecting water from chickens housed in cages in a chicken coop, comprising a water supply pipe, a water feeder, a pressure reducing device, an opening/closing valve, a cleaning panel, a water storage tank, and a pump,

the water supply pipe is arranged along a cage row in which a plurality of the cages are arranged in parallel in a horizontal direction,

the water feeder is provided with a plurality of water supply pipes, water in the water supply pipes is discharged by pushing up the valve bodies,

a pressure reducing device connected to an upstream end of the water supply pipe for reducing a water pressure of water supplied from a water supply source and then allowing the water to flow into the water supply pipe,

the open/close valve is connected with the downstream end of the water supply pipe and switched to any one of a closing mode for closing the downstream end of the water supply pipe and a discharge mode for communicating the downstream end of the water supply pipe with the discharge pipe,

the cleaning panel comprises a panel material having air permeability and covering an air inlet of the chicken house, and a supply pipe for supplying water to the upper surface of the panel material, wherein the cleaning panel cools the air passing through the air inlet by the panel material, the panel material is a panel material which is changed into a low temperature by the vaporization heat of the water soaked in the panel material,

the water storage tank is arranged below the cleaning panel and receives water flowing down in the panel material,

the pump conveys the water in the water storage tank to the supply pipe,

the discharge pipe is a discharge pipe for guiding the water discharged from the water supply pipe to the water storage tank.

The water supply system of this configuration is a new configuration in which a clean panel used for cooling air taken from the outside during ventilation in a large-scale chicken raising facility is incorporated into a system for supplying water to chickens.

When the water is heated due to staying in the water supply pipe, the on-off valve is opened to switch from the closing mode to the discharge mode. Thus, the water in the water supply pipe flows out to the discharge pipe, and fresh water which has not been heated is supplied from the water supply source to the water supply pipe. Therefore, even in a period of high temperature such as summer, the chicken can take the water without heating.

If the water discharged from the water supply pipe is simply discarded, it is wasted in terms of resources and cost. In contrast, in the present configuration, the discharged water is guided to the water storage tank below the clean panel, and is added to the recycled water as the water supplied to the panel material. Therefore, the water discharged from the water supply pipe can be used without waste.

The cleaning panel is a device which is expected to be provided in a large chicken raising facility. In addition, when the temperature is high, such as when the water in the water supply pipe becomes hot, the cleaning panel is used for ventilation of the chicken raising facility, and the pump for conveying water from the water storage tank to the water supply pipe is also operated. Therefore, the water supply system of the present configuration is introduced, and therefore, the system has a small number of configurations for new addition to conventional facilities, and can suppress the increase in water temperature caused by the retention of water in the water supply pipe, as a simple configuration, without changing the system.

In addition, in the discharge mode, the water supplied to the water supply pipe also passes through the pressure reducing device to reduce the water pressure. Therefore, even in the discharge mode, the water pressure in the water supply pipe does not increase, and there is no possibility that water supply to the chickens is hindered by the water supply device. Further, since the water whose pressure is reduced by the pressure reducing device is sent to the water storage tank through the discharge pipe, the amount of water sent per unit time can be suppressed, and a situation where a large amount of water is continuously sent to the water storage tank can be avoided.

The water supply system of the invention, on the basis of the structure,

the water storage tank is provided with a constant water level valve for keeping the water level to be constant,

the discharge pipe does not have a portion whose height increases from the upstream end to the downstream end thereof, and the water level of the water storage tank kept constant by the constant water level valve is set lower than the height of the downstream end of the discharge pipe.

In this configuration, power of a pump or the like for transporting water discharged from the water supply pipe to the water storage tank is not required, and water can be easily transported to the water storage tank only by the action of the water pressure and gravity reduced by the pressure reducing device.

[ Effect of the invention ]

As described above, according to the present invention, it is possible to provide a water supply system capable of suppressing an increase in the temperature of water due to retention of water in a water supply pipe through which drinking water of chickens raised in a cage flows, with a simple configuration.

Drawings

Fig. 1 is a schematic configuration diagram of a chicken house including a water supply system according to an embodiment of the present invention.

Fig. 2 is an enlarged view of the range a-a in fig. 1.

Fig. 3 is an enlarged view of the range B-B in fig. 1.

Fig. 4(a) is an enlarged view of the range C-C in fig. 1, and fig. 4(b) is a longitudinal sectional view of the cleaning panel.

Fig. 5 is a perspective view of the cleaning panel of fig. 4(a) and (b).

Fig. 6 is an enlarged view of a range corresponding to the a-a range in the case where a pressure reducing device different from the water supply system of fig. 1 is used.

Detailed Description

In order to implement the mode of the invention

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. First, the configuration of thechicken coop 10 including the water supply system of the present embodiment will be described. Thechicken house 10 is a rectangular parallelepiped building surrounded by four walls, and has an elongated shape, and a length between a pair of opposingwalls 11 and 12 among the four walls is 50 to 200 meters, and a length between the other pair ofwalls 13 is 5 to 40 meters, which is shorter than the length.

In the internal space of thechicken house 10, a plurality ofcage rows 70 are housed, in which a plurality ofcages 60 are arranged in series in a horizontal direction. Thecage rows 70 are stacked in multiple layers, and multiple rows are arranged in parallel in a direction orthogonal to the direction in which thecage rows 70 extend. Thecage row 70 extends in the longitudinal direction of thechicken house 10 connecting thewalls 11 and 12.

Anair inlet 21 and anair outlet 22 are provided in the pair ofwalls 11 and 12 facing each other. Theair inlet 21 and theair outlet 22 are provided with a large area equal to or larger than 1/2 of the total area of thewalls 11 and 12. A side wall air inlet (not shown) is provided in the upper portion of each of the other pair ofwalls 13 parallel to thecage row 70.

A plurality oflarge exhaust fans 22f are vertically and horizontally mounted on theexhaust port 22. By operating theexhaust fan 22f, air is forcibly discharged from theexhaust port 22, the internal space of thechicken house 10 is brought into a negative pressure, and air is taken in from the outside through at least one of theair inlet 21 and the sidewall air inlet, whereby ventilation of the inside of thechicken house 10 can be performed.

More specifically, when the outside air temperature is low, such as in winter, theair inlet 21 is closed, and ventilation is performed in a first mode in which outside air is taken in through the side wall air inlet. The side wall air inlet is provided with a device (not shown) for adjusting the opening/closing and the opening degree thereof, and the opening/closing and the opening degree of the side wall air inlet are adjusted in accordance with the outside air temperature.

On the other hand, ventilation is performed in the second mode in which air is taken in from theair inlet 21 when the outside air temperature is high, such as in summer. In the second mode, in order to allow air to flow straight between the opposingwalls 11, 12, the air flow is high speed, and ventilation can be performed while cooling the internal space with outside air at a lower temperature than the temperature inside thechicken coop 10. Ventilation can also be performed in a third mode in which air is taken in through both theair inlet 21 and the sidewall air inlet.

Theair inlet 21 is covered with thepanel material 35 of thecleaning panel 30, and the air flowing into thechicken house 10 through theair inlet 21 is cooled by thepanel material 35. Specifically, as shown in fig. 5 and 4(b), the cleaningpanel 30 is configured to hold a plurality ofpanel materials 35 by a pair of side frames 31, anupper frame 32 connecting upper ends of the pair of side frames 31, and alower frame 33 connecting lower ends of the pair of side frames 31. Theupper frame 32 is fixed to thewall 11 above theair inlet 21, and thelower frame 33 is fixed to thewall 11 below theair inlet 21.

Theupper frame 32 holds asupply pipe 36 for supplying water to the upper surface of thepanel material 35, and thesupply pipe 36 is inserted into a space between theupper frame 32 and thepanel material 35 through ahole 31h provided through theside frame 31. Thesupply pipe 36 has a plurality of small holes (not shown) formed through the circumferential surface of a portion located inside theupper frame 32.

Thelower frame 33 includes a net-like support member 33c above thebottom surface 33b thereof, and apanel material 35 is placed thereon. Therefore, a space S in the form of a gutter is formed between the lower end of thepanel material 35 and thebottom surface 33b of thelower frame 33. Ahole 33h is provided through thebottom surface 33b of thelower frame 33, and thepipe 51 connected thereto extends downward.

Thepanel material 35 is formed of a paper material having good water absorbency and water retentivity and having resistance to moisture. Such a paper material is formed into a repeating shape of a small wave shape, and a plurality of paper materials are stacked while shifting the wave shape, thereby increasing the surface area and providing air permeability.

In thecleaning panel 30 having the above-described configuration, if water is supplied to thesupply pipe 36, the water flowing out of the small holes on the circumferential surface of thesupply pipe 36 drops onto the upper surface of thepanel material 35, and thepanel material 35 is wetted by the penetration of the water. When the water evaporates, the heat of vaporization is removed, and thepanel material 35 becomes a low temperature. Thus, the air flowing into thechicken house 10 through theair inlet 21 is cooled while passing through thepanel material 35.

The water flowing down through thepanel material 35 without being vaporized is collected by the space S in the form of a gutter through the net-like support member 33c and is discharged to the outside through thepipe 51. Awater storage tank 40 is provided below thepipe 51, and water flowing down thepipe 51 is stored therein. The stored water is fed to thesupply pipe 36 through thepipe 52 by the operation of the pump P, and is dropped again onto the upper surface of thepanel material 35. The water flowing down through thepanel material 35 is collected in the space S in the form of a gutter and is circulated in the same manner thereafter.

In thewater storage tank 40, water is supplied from the outside through apipe 53 in order to supplement the amount of water that is vaporized and diffused. Here, the case where the valve 41 is opened and closed by the displacement of thefloat 42 according to the water level of thereservoir tank 40 to maintain the water level constant is exemplified. The valve 41 having thefloat 42 in the present embodiment corresponds to the "constant water level valve" in the present invention.

Next, the water supply system of the present embodiment will be explained. As described above, the water supply system is a system for supplying water to the chickens, in which thecleaning panel 30 used in ventilation of thechicken house 10 is incorporated. The water supply system includes a pipe structure including awater supply pipe 3 having awater feeder 4, an upstream pipe 1, and adischarge pipe 6. This pipe structure further includes apressure reducing device 2 provided between the upstream pipe 1 and thewater supply pipe 3, and an opening/closing valve 5 provided between thewater supply pipe 3 and thedischarge pipe 6.

The water supply system includes acleaning panel 30, asupply pipe 36, awater storage tank 40, and a pump P, wherein thecleaning panel 30 has apanel member 35 covering theair inlet 21 of thechicken house 10, thesupply pipe 36 supplies water to thepanel member 35, thewater storage tank 40 is disposed below the cleaningpanel 30, and the pump P delivers the water in thewater storage tank 40 to thesupply pipe 36.

More specifically, thewater supply pipe 3 is disposed along eachcage row 70 in the longitudinal direction. On eachwater supply pipe 3, a plurality ofwater feeders 4 are provided in the same number percage 60. Eachwater feeder 4 has avalve body 4b which is raised and lowered with respect to themain body 4a by vertical movement, and if thevalve body 4b is pushed up by a chicken mouth, a flow path is opened and water flows down.

Further, adrain tank 9 which opens upward is disposed below thewater supply pipe 3 in parallel with thewater supply pipe 3. Thedrain tank 9 is configured to receive water scattered or scattered when the chicken operates thewater feeder 4 to drink water, and is configured to prevent a living space of the chicken or a dung removing belt (not shown) from being wetted.

The upstream pipe 1 is a pipe for supplying water from a water supply source such as a water supply channel to thewater supply pipe 3. The upstream pipe 1 is branched into the same number as thewater supply pipe 3, and then connected to the upstream end of thewater supply pipe 3 via apressure reducing valve 2 as a pressure reducing device. Thepressure reducing valve 2 reduces the pressure of the water supplied from the water supply source and flows into thewater supply pipe 3. Thus, when thewater feeder 4 is operated by the chicken, the water is prevented from being vigorously sprayed out to hinder the drinking of the chicken.

Awater pressure indicator 7 for confirming the pressure of the water flowing into thewater supply pipe 3 is attached to thepressure reducing valve 2. Here, thewater pressure indicator 7 includes atransparent tube 7p provided upright upward and afloat 7f accommodated in thetube 7p, and a simple structure capable of confirming the water pressure in thewater supply tube 3 by the height of thefloat 7f is exemplified. Awater pressure indicator 7 having the same structure is also attached in the vicinity of the downstream end of thewater supply pipe 3.

The downstream ends of thewater supply pipes 3 are connected to dischargepipes 6 through opening/closing valves 5, respectively. In the present embodiment, a case where a plurality ofwater supply pipes 3 and 1discharge pipe 6, which are respectively arranged along thecage rows 70 stacked in a plurality of stages, are connected is exemplified. Thedischarge pipe 6 descends while being sequentially connected to the downstream ends of thewater supply pipes 3 in the lower tier from the downstream end of the uppermostwater supply pipe 3, and then extends at a single height in the vicinity of the floor surface of thechicken house 10 to reach above thewater storage tank 40 through thewall 11. That is, thedischarge pipe 6 does not have a portion in which the height increases from the upstream end toward the downstream end thereof. The water level of thereservoir 40, which is kept constant by the valve 41 having thefloat 42, is set lower than the downstream end of thedischarge pipe 6.

In the water supply system having the above configuration, in the closed mode in which the downstream end of thewater supply pipe 3 is closed by closing the on-offvalve 5, the water of the amount flowing out of thewater feeder 4 by the chicken operation is supplied from the upstream pipe 1 to thewater supply pipe 3 through thepressure reducing valve 2. When the water is not easily heated even if it stays in thewater supply pipe 3 in a low temperature period, the water is supplied to the chickens in the closed mode.

Since thewater pressure indicator 7 is attached to thewater supply pipe 3, it can be confirmed whether or not the water pressure in thewater supply pipe 3 is a water pressure suitable for drinking water for chickens. Further, thewater pressure indicator 7 is attached to thewater supply pipe 3 at two positions near the upstream end and the downstream end, and therefore, even if a pipe is clogged or water leaks in the middle of thewater supply pipe 3, it can be quickly detected.

When the water is heated due to the retention in thewater supply pipe 3, the opening/closing valve 5 is opened as the discharge mode. The mode may be switched from the closing mode to the discharge mode intermittently, or may be continuously set as the discharge mode. In the discharge mode, water flows out from thewater supply pipe 3 to thedischarge pipe 6, and fresh water that has not been warmed up is supplied from the water supply source to thewater supply pipe 3. Therefore, even in a period of high temperature such as summer, the chicken can take the water without heating.

If the water discharged from thewater supply pipe 3 is discarded, it is wasted as a resource and in view of cost. In contrast, in the present embodiment, the water flowing out from thewater supply pipe 3 to thedischarge pipe 6 flows through thedischarge pipe 6 to the downstream end, and is guided to thewater storage tank 40 below the cleaningpanel 30. Since the water in thewater storage tank 40 is recycled as the water to be supplied to thepanel member 35, the water discharged from thewater supply pipe 3 can be used without waste.

The cleaningpanel 30 is a device that a large chicken facility desires to have. In addition, when the air temperature is high, such that the water in thewater supply pipe 3 becomes hot, the cleaningpanel 30 is used for ventilation of thechicken coop 10, and the pump P for supplying water from thewater storage tank 40 to thesupply pipe 36 is also operated. Therefore, the new additional structure required for introducing the water supply system of the present embodiment is to the extent that the on-offvalve 5 and thedischarge pipe 6 are required, and the increase in the water temperature due to the retention of water in thewater supply pipe 3 can be suppressed without changing the system to a simple structure while effectively utilizing the existing equipment.

In addition, in the discharge mode, the water supplied to thewater supply pipe 3 is also water whose pressure is reduced by thepressure reducing valve 2, and the pressure of the water in thewater supply pipe 3 is not increased. Therefore, even in the discharge mode, the chickens can take in the water flowing through thewater supply pipe 3 through thewater feeder 4 without any trouble. Further, since the water whose pressure has been reduced by thepressure reducing valve 2 is sent to thereservoir tank 40 through thedischarge pipe 6, the amount of water sent per unit time can be controlled, a situation where a large amount of water is continuously sent to thereservoir tank 40 can be avoided, and balance with the amount of water sent from thereservoir tank 40 to thesupply pipe 36 can be easily obtained.

Further, thedischarge pipe 6 does not have a portion where the height increases from the upstream end to the downstream end thereof, and the water level of thereservoir tank 40 kept constant is set lower than the height of the downstream end of thedischarge pipe 6. Therefore, power of a pump or the like for transferring the water discharged from thewater supply pipe 3 to thewater storage tank 40 is not required, and the water can be easily transferred to thewater storage tank 40 only by the action of the water pressure and the gravity reduced by thepressure reducing valve 2.

While the present invention has been described above by way of examples of suitable embodiments, the present invention is not limited to the above-described embodiments, and various modifications and design changes can be made without departing from the scope of the present invention.

For example, the on-offvalve 5 that switches between the closed mode and the discharge mode may be manually opened or closed, or may be opened or closed by a control device based on detection of the water temperature or air temperature in thewater supply pipe 3.

Thewater pressure indicator 7 is not limited to the above-described configuration as long as it is configured to know the water pressure in thewater supply pipe 3. The constant water level valve is not limited to the above-described structure as long as it can keep the water level in thereservoir tank 40 constant.

Further, although thepressure reducing valve 2 is exemplified as the pressure reducing device in the above description, thepressure reducing valve 2 is not limited as long as it is a structure capable of flowing water supplied from a water supply source into thewater supply pipe 3 after reducing the water pressure. For example, as shown in fig. 6, awater reservoir 80 can be used as the pressure reducing means. Thewater reservoir 80 is a container open to the atmosphere and connected to the downstream ends of the respective upstream pipes 1 branched into the same number as thewater supply pipe 3. The downstream ends of the branched upstream pipes 1 extend through the upper part of the peripheral wall of thewater reservoir 80 to the inside, and serve aswater supply ports 81. Thewater supply port 81 is provided with avalve 85, and the water level is kept constant by opening and closing thevalve 85 by displacement of afloat 86 according to the water level. Anoutlet pipe 88 is connected to the lower portion of thewater reservoir 80. Theoutflow pipe 88 is located higher than thewater supply pipe 3, and is connected to the upstream end of thewater supply pipe 3 by a vertically extending connectingpipe 89.

According to this structure, the water supplied from the water supply source through the upstream pipe 1 is temporarily stored in thereservoir 80 and disconnected from the water supply source. If water flows out of thewater supply unit 4 for drinking water from the chickens, the water is supplied from thereservoir 80 to thewater supply pipe 3 in an amount corresponding to the drinking water, and a water pressure corresponding to a difference between the water level of thereservoir 80 and the height of thewater supply pipe 3 is applied to the supplied water. Therefore, water having a pressure lower than the pressure of the water supplied from the water supply source can be caused to flow into thewater supply pipe 3. Further, since the pressure of the water flowing into thewater supply pipe 3 can be maintained at a desired value by the difference between the water level inside thereservoir 80 and the height of thewater supply pipe 3, and the water level inside thereservoir 80 is kept constant by thevalve 85, thewater pressure indicator 7 may not be provided in the vicinity of the upstream end of thewater supply pipe 3. When the temperature is high and the water in thewater supply pipe 3 is heated in summer, the water stored in thereservoir 80 is also discharged by opening the on-offvalve 5 as the discharge mode, and fresh water is replenished from the water supply source.

Claims (2)

1. A water supply system for taking water from chickens housed in a cage and raised in a chicken house, comprising a water supply pipe, a water feeder, a pressure reducing device, an opening/closing valve, a cleaning panel, a water storage tank, and a pump,

the water supply pipe is arranged along a cage row in which a plurality of the cages are arranged in parallel in a horizontal direction,

the water feeder is provided with a plurality of water supply pipes, water in the water supply pipes is discharged by pushing up the valve bodies,

a pressure reducing device connected to an upstream end of the water supply pipe for reducing a water pressure of water supplied from a water supply source and then allowing the water to flow into the water supply pipe,

the open/close valve is connected with the downstream end of the water supply pipe and switched to any one of a closing mode for closing the downstream end of the water supply pipe and a discharge mode for communicating the downstream end of the water supply pipe with the discharge pipe,

the cleaning panel comprises a panel material having air permeability and covering an air inlet of the chicken house, and a supply pipe for supplying water to the upper surface of the panel material, wherein the cleaning panel cools the air passing through the air inlet by the panel material, the panel material is a panel material which is changed into a low temperature by the vaporization heat of the water soaked in the panel material,

the water storage tank is arranged below the cleaning panel and receives water flowing down in the panel material,

the pump conveys the water in the water storage tank to the supply pipe,

the discharge pipe is a discharge pipe for guiding the water discharged from the water supply pipe to the water storage tank.

2. Water supply system according to claim 1,

the water storage tank is provided with a constant water level valve for keeping the water level to be constant,

the discharge pipe does not have a portion whose height increases from the upstream end to the downstream end thereof, and the water level of the water storage tank kept constant by the constant water level valve is set lower than the height of the downstream end of the discharge pipe.

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