技术领域technical field
本发明涉及一种换热器，更具体的说，本发明设置一种用于土壤源热泵系统的制冷制热两用热管型地埋管换热器。The invention relates to a heat exchanger, more specifically, the invention provides a dual-purpose heat pipe type buried pipe heat exchanger for cooling and heating used in a soil source heat pump system.
背景技术Background technique
地埋管换热器是土壤源热泵系统的一部分。所述土壤源热泵的使用目的是利用浅层地热资源(指地表浅层的土壤、地下水或河流中吸收的太阳能、地热能而蕴藏的低品位热能)来实现冬季供暖和夏季制冷。一般情况下，浅层土壤的温度在全年范围内是相对稳定的，但夏季的土壤温度会低于环境温度，而冬季的土壤温度又会高于环境温度。因此，利用土壤源热泵系统的工作原理，可在夏季将其作为冷源供冷，冬季又可将其作为热源供热。The buried tube heat exchanger is part of the ground source heat pump system. The purpose of using the ground source heat pump is to use shallow geothermal resources (referring to the low-grade heat energy stored in the shallow soil, groundwater or rivers to absorb solar energy and geothermal energy) to realize heating in winter and cooling in summer. Generally speaking, the temperature of shallow soil is relatively stable throughout the year, but the soil temperature in summer will be lower than the ambient temperature, and the soil temperature in winter will be higher than the ambient temperature. Therefore, using the working principle of the ground source heat pump system, it can be used as a cold source for cooling in summer and as a heat source for heating in winter.
图1、图2分别示意了采用土壤源热泵系统供暖和制冷的原理。Figure 1 and Figure 2 respectively illustrate the principle of heating and cooling using the ground source heat pump system.
由图1、图2可见，所述的土壤源热泵系统实现冬季供暖和夏季制冷的关键部件就是地埋管换热器，所述地埋管换热器的作用是：夏季，将房间的热量排给低于环境温度的土壤以制冷；冬季，则从高于环境温度的土壤中收取热量以供暖。所以，地埋管换热器承担着与地下土壤交换热量的重要作用，其换热性能的好坏，决定了地源热泵系统供暖和制冷的效果。It can be seen from Fig. 1 and Fig. 2 that the key component of the ground source heat pump system to realize heating in winter and cooling in summer is the buried tube heat exchanger. The function of the buried tube heat exchanger is to transfer the heat of the room It discharges to the soil below the ambient temperature for cooling; in winter, it collects heat from the soil above the ambient temperature for heating. Therefore, the buried tube heat exchanger plays an important role in exchanging heat with the underground soil, and its heat transfer performance determines the heating and cooling effect of the ground source heat pump system.
图3示意了一种用于地下换热的热管型地埋式低温高效换热管的原理图。Fig. 3 illustrates a schematic diagram of a heat pipe-type buried low-temperature high-efficiency heat exchange tube for underground heat exchange.
参照图3，该换热管包括一个内部保持真空的管壳以及充填在所述管壳内部的特定工质，在换热管的工作过程中，其下部吸热段a的温度较高，可达到管内压力下工质的蒸发温度，当工质蒸汽由于密度较低向上扩散到达温度较低的热管上部时，在其内壁凝结为液体并顺内壁流至下部吸热段a再次蒸发，如此往复，直至将热管底部的热量高效传递至热管上部放热段c放热。由于换热管具有传热效率高且不需要循环泵的优势，故被广泛应用于地埋管换热器。Referring to Fig. 3, the heat exchange tube includes a tube shell with a vacuum inside and a specific working fluid filled inside the tube shell. During the working process of the heat exchange tube, the temperature of the lower heat absorption section a is relatively high, which can be Reach the evaporation temperature of the working medium under the pressure inside the tube. When the working medium vapor diffuses upward due to the low density and reaches the upper part of the heat pipe with a lower temperature, it condenses into a liquid on the inner wall and flows along the inner wall to the lower endothermic section a to evaporate again, and so on. , until the heat at the bottom of the heat pipe is efficiently transferred to the heat release section c on the upper part of the heat pipe to dissipate heat. Because the heat exchange tube has the advantage of high heat transfer efficiency and does not need a circulation pump, it is widely used in buried tube heat exchangers.
现有的地埋管换热器多为单制热式热管型，申请号为200910080776.8的中国发明专利所公开的“用于地下换热的热管型地埋式低温高效换热管”即为其一(见图3)，其组成部分包括管壳5、受热端1、放热端4、翅片3以及管壳5内的工质2，其技术要点在于做功工质的选择及真空的制作工艺；所述的管壳5是一个内部保持真空的密封容器，所述管壳5内部的工质2始终处于气液两相共存的饱和状态，且无不可凝气体。工作时处于下部吸热段a内的工质吸热汽化产出蒸气，蒸气分子流向上部，在放热段c内的冷壁上凝结并释放汽化潜热，随后，凝结的工质回流而下，重新吸热汽化，循环不已。Most of the existing buried tube heat exchangers are single-heating heat pipe type, and the "heat pipe type buried low-temperature high-efficiency heat exchange tube for underground heat exchange" disclosed in the Chinese invention patent application number 200910080776.8 is its One (see Figure 3), its components include a shell 5, a heat receiving end 1, a heat releasing end 4, fins 3 and the working medium 2 in the shell 5, and its technical points lie in the selection of working medium and the production of vacuum Process; the shell 5 is a sealed container that maintains a vacuum inside, and the working medium 2 inside the shell 5 is always in a saturated state where gas-liquid two-phase coexistence, and there is no non-condensable gas. During operation, the working fluid in the lower endothermic section a absorbs heat and vaporizes to produce steam. The steam molecules flow to the upper part, condense on the cold wall in the heat releasing section c and release the latent heat of vaporization, and then the condensed working medium flows back down. It absorbs heat and vaporizes again, and the cycle is endless.
上述“用于地下换热的热管型地埋式低温高效换热管”，只能实现供热功能，不能满足制冷需求，故只适用于寒冷地区，不适用于有较大制冷需求的夏热冬冷及夏热冬暖地区使用。The above-mentioned "heat pipe type buried low-temperature high-efficiency heat exchange tube for underground heat exchange" can only realize the heating function and cannot meet the cooling demand, so it is only suitable for cold regions, not suitable for summer heat with large cooling demand Use in cold winter and hot summer and warm winter regions.
由于土壤的导热系数一般介于1-3W/(m·K)之间，相对于导热系数约为400W/(m·K)的金属铜和导热系数约为80W/(m·K)的金属铁来说，其导热能力较差，由此带来的问题是：单制热式地埋管不断的从土壤中取热，而热管向地下土壤排放的冷量却难以在短时间内散出，以至在地埋管周围产生冷量堆积；又由于其地下部分长期处于吸热运行状态，必然使地埋管周围的土壤温度逐渐降低，当热管下部周围土壤的温度低于工质的蒸发温度后，工质将无法蒸发，致使热管内的吸热、放热循环无法进行，从而造成热管失效。Since the thermal conductivity of soil is generally between 1-3W/(m K), compared to metal copper with a thermal conductivity of about 400W/(m K) and metal with a thermal conductivity of about 80W/(m K) For iron, its thermal conductivity is poor, and the resulting problem is: the single-heating buried pipe continuously extracts heat from the soil, but the cooling energy discharged by the heat pipe to the underground soil is difficult to dissipate in a short time , so as to produce cold accumulation around the buried pipe; and because its underground part is in a state of heat absorption for a long time, the temperature of the soil around the buried pipe will inevitably decrease gradually. When the temperature of the soil around the lower part of the heat pipe is lower than the evaporation temperature of the working fluid After that, the working fluid will not be able to evaporate, so that the heat absorption and heat release cycle in the heat pipe cannot be carried out, thus causing the heat pipe to fail.
德国卡尔斯鲁厄大学和德国FKW热泵公司研究所曾在2008年联合发表了一篇关于热管型地埋管换热器实验研究的论文(DeepBoreholeHeatExchangerwithaCO2GravitationalHeatPipe.GeoCongress2008.)，该论文实验所用的热管型地埋管换热器与图3所示用于地下换热的热管型地埋式低温高效换热管的原理相似，只是将工质换成了二氧化碳。In 2008, Karlsruhe University in Germany and FKW Heat Pump Company Research Institute in Germany jointly published a paper (Deep Borehole Heat Exchanger with a CO2 Gravitational Heat Pipe. GeoCongress 2008.) on the experimental research on the heat pipe type buried pipe heat exchanger. The principle of the buried tube heat exchanger is similar to that of the heat pipe type buried low-temperature high-efficiency heat exchange tube for underground heat exchange shown in Figure 3, except that the working medium is replaced by carbon dioxide.
图4示意了二氧化碳工质热管的工作区间。Fig. 4 schematically shows the working range of the carbon dioxide working medium heat pipe.
参照图4可知，在特定压力下，二氧化碳工质从液态变为气态时的蒸发温度是固定的，所以，当外界土壤由于长期向热管放热而温度降低时，土壤的温度将会低于管内工质的蒸发温度，以至工质无法蒸发。可见，前述论文实验所用的热管型地埋管换热器，同样没有考虑到土壤温度下降后对工质蒸发温度的影响，故同样存在热管失效的问题，并且同样不能满足制冷需求，只能应用于冬季供热。Referring to Figure 4, it can be seen that under a certain pressure, the evaporation temperature of the carbon dioxide working medium is fixed when it changes from a liquid state to a gaseous state, so when the temperature of the external soil decreases due to long-term heat release to the heat pipe, the temperature of the soil will be lower than that of the inside of the pipe. The evaporation temperature of the working fluid, so that the working fluid cannot evaporate. It can be seen that the heat pipe type buried pipe heat exchanger used in the experiment of the aforementioned paper also did not take into account the influence of the soil temperature on the evaporation temperature of the working medium, so there is also the problem of heat pipe failure, and it cannot meet the cooling demand, so it can only be used Heating in winter.
图5示意了某地埋管地源热泵项目运行一年的地下土壤温度变化情况。该项目采用的地埋管为U型垂直地埋管，既可在冬季供热，也可在夏季供冷，但冬季的总热负荷要大于夏季的总冷负荷。Figure 5 shows the variation of underground soil temperature of a buried pipe ground source heat pump project in one year of operation. The buried pipe used in this project is a U-shaped vertical buried pipe, which can supply heat in winter and cool in summer, but the total heating load in winter is greater than the total cooling load in summer.
由图5可见，在一年的供能周期中，地埋管在采暖季向地下排放的总冷量要大于供冷季向地下排放的总热量。那么，由于土壤的导热能力较差，蓄积的冷量难以在供能间歇期中散出，故运行一年后的土壤温度比初始状态下降了约1℃之多。当然，对于单制热式热管型地埋管换热器来说，由于没有夏季向地下排放的热量来抵消或缓解冬季向地下排放的冷量，其周围土壤温度的下降将更为明显。It can be seen from Figure 5 that in the one-year energy supply cycle, the total cooling capacity discharged to the ground by buried pipes in the heating season is greater than the total heat discharged to the ground in the cooling season. Then, due to the poor thermal conductivity of the soil, it is difficult to dissipate the accumulated cold energy during the intermittent period of energy supply, so the soil temperature after one year of operation has dropped by about 1°C compared to the initial state. Of course, for the single-heating heat pipe type buried tube heat exchanger, since there is no heat discharged to the ground in summer to offset or alleviate the cold discharged to the ground in winter, the temperature drop of the surrounding soil will be more obvious.
发明内容Contents of the invention
本发明的目的就是解决以上现有技术存在的诸多问题，并为此提供一种制冷制热两用热管型地埋管换热器，从而实现夏季供冷与冬季供热的需求，同时保证其长期稳定的运行。The purpose of the present invention is to solve many problems in the above prior art, and to provide a dual-purpose heat pipe type buried tube heat exchanger for cooling and heating, so as to meet the needs of cooling in summer and heating in winter, while ensuring its Long-term stable operation.
本发明的技术方案是：Technical scheme of the present invention is:
一种制冷制热两用热管型地埋管换热器，其构成部件包括其内部充有工质的热管主体以及分别设置在所述热管主体上、下部的放热端和吸热端，所述放热端的外部缠绕设置连接热泵机组的制热用换热管，所述吸热端的外部缠绕设置连接热泵机组的制冷用换热管，所述的制热用换热管和制冷用换热管上分别设置有换热管切换阀门。A dual-purpose heat pipe type buried pipe heat exchanger for cooling and heating, its components include a heat pipe main body filled with working fluid inside, and heat releasing ends and heat absorbing ends respectively arranged on the upper and lower parts of the heat pipe main body. The heat exchanging tube for heating connected to the heat pump unit is arranged on the outer winding of the heat releasing end, the heat exchanging tube for cooling connected to the heat pump unit is arranged on the outer winding of the heat absorbing end, and the heat exchanging tube for heating and the heat exchanging tube for cooling The tubes are respectively provided with heat exchange tube switching valves.
在以上设置中：In the above setup:
所述的制热用换热管和制冷用换热管均采用金属铜制作；Both the heat exchange tubes for heating and the heat exchange tubes for refrigeration are made of metallic copper;
所述制热用换热管和制冷用换热管内的循环介质为水；The circulating medium in the heat exchange tubes for heating and the heat exchange tubes for refrigeration is water;
所述制热用换热管和制冷用换热管的外表面均设置有防腐层和保温层；The outer surfaces of the heat exchange tubes for heating and the heat exchange tubes for refrigeration are provided with an anti-corrosion layer and an insulation layer;
所述制冷用换热管的地下直管部分与所述的热管主体相固定；The underground straight pipe part of the cooling heat exchange pipe is fixed to the heat pipe main body;
所述的换热管切换阀门为电子自动阀门或手动阀门。The heat exchange tube switching valve is an electronic automatic valve or a manual valve.
本发明的有益效果是：The beneficial effects of the present invention are:
(1)不仅可在冬季供热，还可实现夏季供冷，相比于普通单制热式热管型地埋管换热器，大幅增加了适用地区，提高了热管型地埋管换热器的性价比。(1) It can not only supply heat in winter, but also realize cooling in summer. Compared with ordinary single-heating heat pipe type buried tube heat exchangers, it greatly increases the applicable area and improves the efficiency of heat pipe type buried tube heat exchangers. cost-effective.
(2)可使冬季向地下排放的冷量与夏季向土壤排放的热量平衡，从而获得使地下土壤的年平均温度能在多年运行过程中稳定在热管有效工作区间内的技术效果，保证了热管长期、稳定的运行。(2) It can balance the cold discharged to the ground in winter and the heat discharged to the soil in summer, so as to obtain the technical effect that the annual average temperature of the underground soil can be stabilized within the effective working range of the heat pipe during many years of operation, ensuring that the heat pipe Long-term and stable operation.
附图说明Description of drawings
图1是采用土壤源热泵系统供暖的原理示意图；Figure 1 is a schematic diagram of the heating principle of the ground source heat pump system;
图2是采用土壤源热泵系统制冷的原理示意图；Figure 2 is a schematic diagram of the refrigeration principle of the ground source heat pump system;
图3是现有技术用于地下换热的热管型地埋式低温高效换热管的结构示意图；Fig. 3 is a structural schematic diagram of a heat pipe-type buried low-temperature high-efficiency heat exchange tube used for underground heat exchange in the prior art;
图4是以二氧化碳作为工质的热管型地埋管换热器的工作区间示意图；Fig. 4 is a schematic diagram of the working area of a heat pipe type buried tube heat exchanger using carbon dioxide as a working medium;
图5是某地埋管地源热泵项目运行一年的地下土壤温度变化的示意图；Figure 5 is a schematic diagram of the underground soil temperature change of a buried pipe ground source heat pump project for one year of operation;
图6是本发明的结构示意图。Fig. 6 is a schematic structural diagram of the present invention.
具体实施方式Detailed ways
为了使本发明的优点和特征更容易被清楚理解，下面结合附图和实施例对其技术方案作以详细说明。In order to make the advantages and features of the present invention more clearly understood, the technical solutions thereof will be described in detail below in conjunction with the accompanying drawings and embodiments.
图6示意了本发明的结构情况。Fig. 6 illustrates the structural situation of the present invention.
参见图6，本发明的制冷制热两用热管型地埋管换热器，其构成部件包括热管主体1，所述热管主体1的上部为放热端2，所述热管主体1的下部为吸热端3，所述热管主体1的内部充有工质，所述放热端2的外部缠绕安装连接热泵机组的制热用换热管4，所述吸热端的外部缠绕安装连接热泵机组的制冷用换热管5，所述的制热用换热管4和制冷用换热管5上分别安装换热管切换阀门6。Referring to Fig. 6, the dual-purpose heat pipe type buried pipe heat exchanger for cooling and heating of the present invention, its components include a heat pipe main body 1, the upper part of the heat pipe main body 1 is the heat release end 2, and the lower part of the heat pipe main body 1 is Heat-absorbing end 3, the inside of the heat pipe main body 1 is filled with working fluid, the outer winding of the heat-releasing end 2 is connected to the heating heat exchange tube 4 of the heat pump unit, and the outer winding of the heat-absorbing end is connected to the heat pump unit The heat exchange tubes 5 for refrigeration, the heat exchange tubes 4 for heating and the heat exchange tubes 5 for refrigeration are respectively equipped with switching valves 6 for heat exchange tubes.
本发明的使用方法如下：The using method of the present invention is as follows:
由于工质的相变温度介于吸热端3所处的增温层温度与吸热端2所处的恒温层温度之间，故使用本发明时，应将所述的热管主体1垂直埋入土壤中，并使其上部的放热端2处于地下的恒温层内，同时使其下部的吸热端3处于地下的增温层内，以免在夏季温度过高的情况下其工质蒸汽无法凝结；Since the phase transition temperature of the working medium is between the temperature of the temperature-increasing layer where the heat-absorbing end 3 is located and the temperature of the constant-temperature layer where the heat-absorbing end 2 is located, when using the present invention, the heat pipe main body 1 should be buried vertically. into the soil, and make the upper heat releasing end 2 in the underground constant temperature layer, and make the lower heat absorbing end 3 in the underground temperature increasing layer, so as to avoid the working medium steam when the temperature is too high in summer unable to condense;
用于冬季制热时，打开安装在所述制热用换热管4上的换热管切换阀门6并关闭安装在所述制冷用换热管5上的换热管切换阀门6，使所述的制热用换热管4连通热泵机组源侧循环管路。所述吸热端3所汲取的热量使所述热管主体1内的工质蒸发散热，并将热能通过位于所述热管主体1上部的放热端2与所述的制热用换热管4进行热交换，再通过所述的制热用换热管4将热量传至热泵机组，实现供暖。When used for heating in winter, open the heat exchange tube switch valve 6 installed on the heat exchange tube 4 for heating and close the heat exchange tube switch valve 6 installed on the heat exchange tube 5 for refrigeration, so that all The heat exchange tube 4 for heating described above is connected to the circulation pipeline on the source side of the heat pump unit. The heat absorbed by the heat-absorbing end 3 causes the working fluid in the heat pipe main body 1 to evaporate and dissipate heat, and the heat energy passes through the heat-dissipating end 2 located on the upper part of the heat pipe main body 1 and the heat exchange tube 4 for heating. The heat is exchanged, and then the heat is transferred to the heat pump unit through the heat exchange tube 4 for heating to realize heating.
用于夏季制冷时，关闭安装在所述制热用换热管4上的换热管切换阀门6并打开安装在所述制冷用换热管5上的换热管切换阀门6，使所述的制冷用换热管5连通热泵机组源侧循环管路。由于在夏季供冷工况下，所述热泵机组源侧的出水温度(即进入制冷用换热管5的温度)高于所述热管主体1内工质的蒸发温度，可使工质在所述的吸热端3实现蒸发；又由于所述放热端2的温度低于所述热管主体1内工质的冷凝温度，可使工质蒸汽凝结放热，从而实现热管循环并将冷量提供给制冷用换热管5，再通过所述的制冷用换热管5将冷量传至热泵机组，实现制冷。When used for cooling in summer, close the heat exchange tube switching valve 6 installed on the heat exchange tube 4 for heating and open the heat exchange tube switching valve 6 installed on the heat exchange tube 5 for cooling, so that the The refrigeration heat exchange tube 5 is connected to the source side circulation pipeline of the heat pump unit. Since in the cooling condition in summer, the outlet water temperature of the source side of the heat pump unit (that is, the temperature entering the cooling heat exchange tube 5) is higher than the evaporation temperature of the working medium in the heat pipe main body 1, the working medium can be made The above-mentioned endothermic end 3 realizes evaporation; and because the temperature of the exothermic end 2 is lower than the condensation temperature of the working fluid in the heat pipe main body 1, the working medium steam can be condensed to release heat, thereby realizing the heat pipe circulation and reducing the cooling capacity. It is provided to the heat exchange tube 5 for refrigeration, and then the cold energy is transferred to the heat pump unit through the heat exchange tube 5 for refrigeration to realize refrigeration.
本发明的最佳实施方式如下：The best implementation mode of the present invention is as follows:
1.所述热管主体1、位于所述热管主体1上部的放热端2以及位于热管主体1下部的吸热端3的设计，均根据地源热泵国家标准GB50036-2009《地源热泵系统工程技术规范》中的有关要求进行地下热物性指标测试，并结合建筑冷热负荷等参数设计热管主体1的尺寸和材料等参数、内部工质的型号和充灌量等参数以及与热泵机组连接的换热管的相关参数。需要注意的是，为了保证热管换热器长期稳定运行，应遵循国家标准第4.3.2条中“地源热泵系统总释热量宜与其总吸热量相平衡”的相关要求，故该设计应保证冬季取热量与夏季排热量的基本平衡，若取热量或排热量过多，则多余的量应当通过其他辅助供能方式提供。比如：若取热量多于排热量，则多出的取热量可通过太阳能予以补足；若排热量多于取热量，则多出的排热量可通过冷却塔予以补足。1. The design of the heat pipe main body 1, the heat release end 2 located at the upper part of the heat pipe main body 1, and the heat absorption end 3 located at the lower part of the heat pipe main body 1 are all in accordance with the national standard for ground source heat pumps GB50036-2009 "Engineering Technology of Ground Source Heat Pump Systems" According to the relevant requirements in the Code, the underground thermal physical property index test is carried out, and the parameters such as the size and material of the heat pipe main body 1, the model of the internal working fluid and the charging amount, etc. The relevant parameters of the heat pipe. It should be noted that in order to ensure the long-term stable operation of the heat pipe heat exchanger, the relevant requirements of "the total heat release of the ground source heat pump system should be balanced with the total heat absorption" in Article 4.3.2 of the national standard should be followed, so the design should Ensure the basic balance of heat intake in winter and heat exhaustion in summer. If there is too much heat intake or exhaustion, the excess amount should be provided by other auxiliary energy supply methods. For example: if the heat intake is more than the heat exhausted, the excess heat intake can be supplemented by solar energy; if the exhaust heat is more than the heat intake, the excess exhaust heat can be supplemented by the cooling tower.
2.所述的制热用换热管4以及制冷用换热管5的设计，应以减少热阻为目的，为此，要求两处换热管均与所述的热管主体1紧密接触，并选择金属铜等导热系数较高的材料制作，管内设置水等循环介质。考虑到地下条件较为复杂的情况，应在所述制热用换热管4以及制冷用换热管5的外表面加设防腐层及保温层，并将所述制冷用换热管5的地下直管部分与所述的热管主体1相固定，以避免影响热管换热。2. The design of the heat exchange tube 4 for heating and the heat exchange tube 5 for refrigeration should aim at reducing the thermal resistance. For this reason, both heat exchange tubes are required to be in close contact with the heat pipe main body 1, And choose metal copper and other materials with high thermal conductivity to make, and set water and other circulating media in the tube. Considering that the underground conditions are relatively complicated, an anti-corrosion layer and an insulation layer should be added on the outer surfaces of the heat exchange tubes 4 for heating and the heat exchange tubes 5 for refrigeration, and the underground heat exchange tubes 5 for refrigeration The straight pipe part is fixed to the heat pipe main body 1 so as not to affect the heat exchange of the heat pipe.
3.所述换热管切换阀门6的设计，用于冬季时将热泵机组源侧循环管路与所述的制热用换热管4相连通；夏季时将热泵机组源侧循环管路与所述的制冷用换热管5相连通，其安装位置应根据现场条件确定，最好安装在易于安装、操作的位置，可选择采用电子自动阀门或手动阀门。3. The design of the heat exchange tube switching valve 6 is used to connect the source side circulation pipeline of the heat pump unit with the heat exchange tube 4 for heating in winter; The refrigerating heat exchange tubes 5 are connected, and the installation location should be determined according to the site conditions, preferably in a location that is easy to install and operate, and electronic automatic valves or manual valves can be selected.
以上参照附图和实施例对本发明的技术方案进行了示意性描述，该描述没有限制性。本领域的技术人员应能理解，在实际应用中，本发明中各个技术特征均可能发生某些变化，而其他人员在其启示下也可能做出相似设计。特别需要指出的是：只要不脱离本发明的设计宗旨，所有显而易见的细节变化或相似设计，均包含在本发明的保护范围之内。The technical solution of the present invention has been schematically described above with reference to the drawings and embodiments, and the description is not limiting. Those skilled in the art should understand that in practical applications, some changes may occur in each technical feature of the present invention, and others may also make similar designs under the inspiration thereof. In particular, it should be pointed out that all obvious detail changes or similar designs are included in the protection scope of the present invention as long as they do not deviate from the design principle of the present invention.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510553652.2ACN105091411A (en) | 2015-09-02 | 2015-09-02 | Refrigerating and heating dual-purpose heat pipe type ground heat exchanger |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510553652.2ACN105091411A (en) | 2015-09-02 | 2015-09-02 | Refrigerating and heating dual-purpose heat pipe type ground heat exchanger |
| Publication Number | Publication Date |
|---|---|
| CN105091411Atrue CN105091411A (en) | 2015-11-25 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510553652.2APendingCN105091411A (en) | 2015-09-02 | 2015-09-02 | Refrigerating and heating dual-purpose heat pipe type ground heat exchanger |
| Country | Link |
|---|---|
| CN (1) | CN105091411A (en) |
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| CN106595129A (en)* | 2016-12-15 | 2017-04-26 | 扬州大学 | Soil heat balance device for soil source heat pump |
| CN107816906A (en)* | 2017-09-19 | 2018-03-20 | 西安科技大学 | A kind of heat energy for coal-field fire prevention and control removes device and method |
| CN107816906B (en)* | 2017-09-19 | 2023-09-22 | 西安科技大学 | Heat energy removing device and method for preventing and controlling fire area of coal field |
| CN110220327A (en)* | 2019-06-11 | 2019-09-10 | 张永东 | A kind of new energy modified earth source heat pump unit |
| PL447635A1 (en)* | 2024-01-29 | 2025-08-04 | Roman Januszajtis | System for removing moisture from the building's foundations |
| CN119687600A (en)* | 2024-12-25 | 2025-03-25 | 西安热工研究院有限公司 | A novel solar-coupled air-water dual-source heat pump system based on thermal diodes |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | Application publication date:20151125 |