Water jacket anti-explosion control system of gas producerTechnical Field
A water jacket anti-explosion control system of a gas producer belongs to the field of gas producer control.
Background
The water jacket of the gas producer is exploded to be one of the most serious accident types of the existing gas station, once the water jacket of the gas producer is exploded, personal injury of nearby workers is easily caused, and meanwhile, equipment can be damaged, so that huge economic loss is brought.
The fundamental reason for causing the water jacket to explode is that the water charging system of the water jacket has problems, when the water jacket is lack of water and is burnt to be red, if the water is blindly supplemented in the water jacket at the moment, the water in the water jacket can be rapidly gasified, and therefore the volume of the water jacket instantaneously expands by more than 1000 times, so that the water jacket explodes due to expansion.
The reasons for causing the water supply system of the water jacket to have problems are various, wherein the most common reasons are as follows: at present, a water jacket water supplementing system of a gas producer adopts a steam drum for supplementing water, the steam drum is connected with the water jacket, steam and water in the steam drum are mixed, steam in the jacket enters the steam drum, and water in the steam drum is injected into the jacket.
Because the steam drum passes through the tube coupling with the water jacket, consequently can reflect the water level condition in the water jacket indirectly through the level gauge of setting on the steam drum under the normal condition, nevertheless incrustation scale appears in steam drum, connecting tube and water jacket easily after long-time the use, can make the water route that gets into the water jacket like this more and more narrow, and the level gauge that sets up on the steam drum this moment can not correctly reflect the liquid level of water jacket to cause the jacket to lack water.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the water jacket explosion-proof control system overcomes the defects of the prior art, and provides the water jacket explosion-proof control system which is provided with the temperature measuring element outside the water jacket and detects the temperature of the outer wall of the water jacket through the temperature measuring element, so as to reflect the liquid level state in the water jacket and avoid causing the water jacket explosion when the water jacket temperature is overhigh and water is supplemented into the water jacket.
The utility model provides a technical scheme that its technical problem adopted is: this water jacket explosion-proof control system of gas producer, including gas producer and the water jacket of suit on the gas producer surface, be provided with the steam pocket that is used for carrying demineralized water in the water jacket at the lateral part of water jacket, the steam pocket passes through the tube coupling with the water jacket, its characterized in that: the outer wall of the water jacket is provided with a temperature measuring element for detecting the temperature of the outer wall of the water jacket, and the output end of the temperature measuring element is respectively connected to different signal input ends of the controller; the lateral part of steam pocket is provided with the demineralized water inlet tube that is used for carrying the demineralized water to the steam pocket, still installs demineralized water feed pump on the demineralized water inlet tube, and the control signal output part of controller links to each other with the signal input part of demineralized water feed pump, and the controller is controlled demineralized water feed pump's operating condition.
Preferably, the softened water inlet pipe on still install electronic ball valve, the signal output part of controller links to each other with electronic ball valve's signal input part, controls electronic ball valve's operating condition.
Preferably, the temperature measuring elements are uniformly arranged on the surface of the water jacket in groups, and the temperature measuring elements are tightly attached to the outer wall of the water jacket.
Preferably, the temperature measuring element is an end face thermal resistor.
Preferably, the output end of the temperature measuring element is connected with the signal input end of the temperature controller, and the signal output end of the temperature controller is connected with the signal input end of the controller.
Preferably, an alarm is further arranged at the signal output end of the controller.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
in the water jacket explosion-proof control system of the coal gas producer, the temperature measuring element is arranged outside the water jacket, the temperature of the outer wall of the water jacket is detected through the temperature measuring element, the water jacket is made of metal materials and has higher heat conductivity coefficient, so the temperature difference between the inner wall and the outer wall of the water jacket is smaller, and the inner wall of the water jacket is close to the temperature of the coal gas producer due to the fact that the water jacket is attached to the outer wall of the coal gas producer. When the water jacket lacks water, the temperature of the water jacket can rise rapidly, thereby reflecting the liquid level state in the water jacket. When the temperature of the water jacket is too high due to water shortage, the softened water supply pump is stopped by the controller and confirmed manually. Therefore, the water jacket explosion caused by water supplement into the water jacket at the moment is avoided, the potential safety hazard is eliminated, and meanwhile, huge economic loss is avoided.
Drawings
FIG. 1 is a schematic diagram of the structure of a water jacket explosion-proof control system of a gas producer.
Wherein: 1. the device comprises agas producer 2, awater jacket 3, an end surfacethermal resistor 4, analarm 5, atemperature controller 6, acontroller 7, a drumliquid level meter 8, a drum 9, anelectric ball valve 10, a softenedwater inlet pipe 11 and a softened water supply pump.
Detailed Description
Fig. 1 is a preferred embodiment of the present invention, and the present invention will be further explained with reference to fig. 1.
As shown in figure 1, the water jacket explosion-proof control system of the gas producer comprises thegas producer 1, wherein awater jacket 2 is sleeved on the outer wall of thegas producer 1, an end facethermal resistor 3 is fixed on the outer wall of thewater jacket 2, and the end facethermal resistor 3 is uniformly provided with a plurality of groups on the surface of thewater jacket 2 and is tightly attached to the outer wall of thewater jacket 2. Asteam drum 8 for supplementing water to thewater jacket 2 is arranged on one side of thewater jacket 2, and thewater jacket 2 is connected with thesteam drum 8 through a pipeline. Adrum level gauge 7 reflecting the liquid level in thedrum 8 is arranged on the surface of thedrum 8.
The bottom of thesteam drum 8 is provided with a softenedwater inlet pipe 10 for conveying softened water into thesteam drum 8, one end of the softenedwater inlet pipe 10 is installed on one side of thesteam drum 8, the other end of the softened water inlet pipe is in butt joint with an outlet of a softenedwater supply pump 11, and an electric ball valve 9 is installed in the softenedwater inlet pipe 10.
The output of setting up terminal surfacethermal resistance 3 onwater jacket 2 outer wall is connected to the different input port oftemperature controller 5 respectively on, restricts the temperature value that every terminal surfacethermal resistance 3 monitored throughtemperature controller 5, and the different output oftemperature controller 5 still links to each other with the different input ofcontroller 6 respectively, uploads the temperature value that every terminal surfacethermal resistance 3 monitored tocontroller 6. The different outputs of thecontroller 6 are also connected to the signal inputs of the electric ball valve 9 and the softenedwater feed pump 11, respectively. The output end of thecontroller 6 is also connected with the input end of thealarm 4 to drive thealarm 4 to give an alarm, and thecontroller 6 is realized by adopting a commercially available normally-open PLC.
The specific working process and working principle are as follows:
the temperature that sets up multiunit terminal surfacethermal resistance 3 onwater jacket 2 outer wall detectedwater jacket 2 surface to send the temperature data that detect totemperature controller 5,temperature controller 5 shows the temperature value of the monitoring point that each terminal surfacethermal resistance 3 corresponds, sends the data monitored of each monitoring point to controller 6 simultaneously. Thecontroller 6 judges whether the temperature values of at least two monitoring points exceed a preset temperature threshold value, if the temperature values of at least two monitoring points exceed the preset temperature threshold value, thecontroller 6 judges whether the temperature values of at least two monitoring points exceed a preset upper temperature limit, and if the temperature values of at least two monitoring points exceed the preset upper temperature limit, thecontroller 6 controls the electric ball valve 9 and the softenedwater supply pump 11 to stop working; if the temperature values of at least two monitoring points do not exceed the preset temperature threshold value, thecontroller 6 controls thealarm 4 to give an alarm to remind a worker that the temperature of thewater jacket 2 is abnormal, manual inspection and danger elimination are needed, and the water supplementing system can be restarted until the temperature of the outer wall of thewater jacket 2 returns to normal and is manually reset, so that the safety of equipment and operators is guaranteed.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.