CN205245413U - Combined type ground source heat pump system - Google Patents
Combined type ground source heat pump system Download PDFInfo
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- CN205245413U CN205245413U CN201521083453.1U CN201521083453U CN205245413U CN 205245413 U CN205245413 U CN 205245413U CN 201521083453 U CN201521083453 U CN 201521083453U CN 205245413 U CN205245413 U CN 205245413U
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Abstract
本实用新型公开了一种复合式地源热泵系统，包括并联的地源热泵子系统、燃气锅炉子系统和电制冷冷水机组子系统以及用户侧循环泵和空调末端设备；地源热泵子系统包括依次连接的地埋管换热器、地源侧循环水泵和地源热泵，地温监测井设置在地埋管换热器周围；燃气锅炉子系统包括燃气锅炉；电制冷冷水机组子系统包括依次连接的冷却塔、冷却侧循环泵和电制冷冷水机组；用户侧循环泵和空调末端设备与地源热泵、燃气锅炉和电制冷冷水机组分别构成闭合回路。本实用新型综合了浅层地热能和燃气、电力的优点，实现了三者的优势互补，解决了地源热泵系统由于冬夏季冷热负荷不均所导致的土壤温度失衡问题，保证了地源热泵系统长期高效的运行。
The utility model discloses a composite ground source heat pump system, which includes a parallel ground source heat pump subsystem, a gas boiler subsystem, an electric refrigeration chiller subsystem, a user side circulation pump and an air conditioner terminal device; the ground source heat pump subsystem includes The buried tube heat exchanger, the ground source side circulating water pump and the ground source heat pump are connected in sequence, and the ground temperature monitoring well is set around the buried tube heat exchanger; the gas boiler subsystem includes a gas boiler; the electric refrigeration chiller subsystem includes sequentially connected The cooling tower, the cooling side circulation pump and the electric refrigeration chiller; the user side circulation pump and the air conditioner terminal equipment, the ground source heat pump, the gas boiler and the electric refrigeration chiller form a closed loop respectively. The utility model combines the advantages of shallow geothermal energy, gas and electric power, realizes the complementary advantages of the three, solves the problem of soil temperature imbalance caused by uneven cold and heat loads in winter and summer in the ground source heat pump system, and ensures the ground source heat pump system. The heat pump system operates efficiently for a long time.
Description
技术领域technical field
本实用新型涉及暖通空调技术领域，特别涉及一种复合式地源热泵系统。The utility model relates to the technical field of heating, ventilation and air conditioning, in particular to a composite ground source heat pump system.
背景技术Background technique
地源热泵系统基于设计负荷确定地埋管数量以及地源热泵机组数量和参数。该种设计方法存在较多弊端：地埋管数量众多，占地面积大，初投资过高；建筑冬夏两季负荷不平衡造成地源热泵冬夏两季向土壤中的取热量和排热量不平衡，导致土壤温度偏离设计值，使得土壤温度失衡；土壤温度失衡导致地源热泵系统能效下降甚至无法正常运行，降低地源热泵系统的使用年限。The ground source heat pump system determines the number of buried pipes and the number and parameters of ground source heat pump units based on the design load. This design method has many disadvantages: the number of buried pipes is large, the area is large, and the initial investment is too high; the unbalanced load of the building in winter and summer causes the heat intake and discharge of ground source heat pumps to the soil in winter and summer. , causing the soil temperature to deviate from the design value, making the soil temperature unbalanced; the soil temperature unbalance leads to a decrease in the energy efficiency of the ground source heat pump system or even fails to operate normally, reducing the service life of the ground source heat pump system.
初投资高、土壤温度失衡、使用年限减少的弊端降低了地源热泵系统的节能效果和使用范围。造成现状的主要原因是无法基于土壤温度对地源热泵系统的供能量进行调节。为消除现有地源热泵系统的弊端，需要提出更佳的系统解决方案。The disadvantages of high initial investment, unbalanced soil temperature, and reduced service life reduce the energy-saving effect and scope of use of the ground source heat pump system. The main reason for the current situation is that the energy supply of the ground source heat pump system cannot be adjusted based on the soil temperature. In order to eliminate the disadvantages of the existing ground source heat pump system, it is necessary to propose a better system solution.
发明内容Contents of the invention
本实用新型为解决公知技术中存在的技术问题而提供一种复合式地源热泵系统，该系统能够对基于土壤温度对地源热泵系统的供能量进行调节，解决地源热泵系统由于冬夏季冷热负荷不均所导致的土壤温度失衡问题，保证地源热泵系统长期高效的运行。The utility model provides a compound ground source heat pump system for solving the technical problems existing in the known technology. The soil temperature imbalance problem caused by uneven heat load ensures the long-term and efficient operation of the ground source heat pump system.
本实用新型为解决公知技术中存在的技术问题所采取的技术方案是：一种复合式地源热泵系统，包括并联的地源热泵子系统、燃气锅炉子系统和电制冷冷水机组子系统以及用户侧循环泵和空调末端设备；所述地源热泵子系统包括地温监测井、地埋管换热器、地源侧循环水泵、地源热泵和第一电动两通阀；依次连接的所述地埋管换热器、所述地源侧循环水泵和所述地源热泵构成一个闭合回路，依次连接的所述地源热泵、所述用户侧循环泵和所述空调末端设备构成一个闭合回路，在连接所述地源侧循环水泵与所述用户侧循环泵的供水管路上设有所述第一电动两通阀；所述地温监测井设置在所述地埋管换热器周围；所述燃气锅炉子系统包括燃气锅炉和第二电动两通阀，依次连接的所述燃气锅炉、所述用户侧循环泵和所述空调末端设备构成一个闭合回路，在连接所述燃气锅炉与所述用户侧循环泵的供水管路上设有所述第二电动两通阀；所述电制冷冷水机组子系统包括冷却塔、冷却侧循环泵、电制冷冷水机组和第三电动两通阀，依次连接的所述冷却塔、所述冷却侧循环泵和所述电制冷冷水机组构成一个闭合回路，依次连接的所述电制冷冷水机组、所述用户侧循环泵和所述空调末端设备构成一个闭合回路，在连接所述电制冷冷水机组与所述用户侧循环泵的供水管路上设有所述第三电动两通阀。The technical solution adopted by the utility model to solve the technical problems existing in the known technology is: a composite ground source heat pump system, including a parallel ground source heat pump subsystem, a gas boiler subsystem, an electric refrigeration chiller subsystem and user side circulation pump and air-conditioning terminal equipment; the ground source heat pump subsystem includes a ground temperature monitoring well, a buried pipe heat exchanger, a ground source side circulating water pump, a ground source heat pump and a first electric two-way valve; the ground source heat pumps connected in sequence The buried pipe heat exchanger, the ground-source side circulating water pump and the ground-source heat pump form a closed loop, and the ground-source heat pump, the user-side circulating pump and the air-conditioning terminal equipment connected in sequence form a closed loop, The first electric two-way valve is provided on the water supply pipeline connecting the ground source side circulating water pump and the user side circulating pump; the ground temperature monitoring well is arranged around the buried pipe heat exchanger; the The gas boiler subsystem includes a gas boiler and a second electric two-way valve. The gas boiler, the user-side circulation pump and the air-conditioning terminal equipment connected in sequence form a closed loop. After connecting the gas boiler and the user The second electric two-way valve is provided on the water supply pipeline of the side circulation pump; the subsystem of the electric refrigeration chiller includes a cooling tower, a cooling side circulation pump, an electric refrigeration chiller and a third electric two-way valve, which are connected in sequence The cooling tower, the cooling-side circulation pump and the electric refrigeration chiller form a closed loop, and the electric refrigeration chiller, the user-side circulation pump and the air-conditioning terminal equipment connected in sequence form a closed loop, The third electric two-way valve is provided on the water supply pipeline connecting the electric refrigeration chiller unit and the user-side circulation pump.
本实用新型具有的优点和积极效果是：The advantages and positive effects that the utility model has are:
一)长期高效，该系统综合了可再生能源(浅层地热能)和常规能源(燃气、电力)的优点，实现了二者的优势互补，解决了地源热泵系统由于冬夏季冷热负荷不均所导致的土壤温度失衡问题，保证了地源热泵系统长期高效的运行。1) Long-term high efficiency. The system combines the advantages of renewable energy (shallow geothermal energy) and conventional energy (gas, electricity), realizes the complementary advantages of the two, and solves the problem of the ground source heat pump system due to the uneven cooling and heating loads in winter and summer. The soil temperature imbalance problem caused by the above factors ensures the long-term and efficient operation of the ground source heat pump system.
二)控制合理，通过地温监测井的监测数据对系统的运行策略进行及时调整，做到控制有据可依。2) The control is reasonable, and the operation strategy of the system is adjusted in time through the monitoring data of the geothermal monitoring well, so that the control is evidence-based.
三)初投资低，通过可再生能源与常规能源的复合，使得该系统的初投资较常规可再生能源系统降低20％～40％。3) Low initial investment. Through the combination of renewable energy and conventional energy, the initial investment of the system is reduced by 20% to 40% compared with conventional renewable energy systems.
四)经济性好，系统运行能效高，能源消耗量少，节约运行费用。4) The economy is good, the energy efficiency of the system operation is high, the energy consumption is small, and the operation cost is saved.
五)环境效益好，能源利用效率高，污染物排放量的少，环境效益明显。5) Good environmental benefits, high energy utilization efficiency, less pollutant discharge, and obvious environmental benefits.
综上，本实用新型将燃气锅炉、电制冷冷水机组和地源热泵进行了有机的结合，实现了可再生能源和常规能源的综合利用，在解决土壤失衡的基础上，提升了能源利用效率、降低了系统初投资，具有较高的经济效益和环境效益，为再生能源和常规能源的综合利用提供了一种新的思路。To sum up, the utility model organically combines gas-fired boilers, electric refrigeration chillers and ground source heat pumps, realizes the comprehensive utilization of renewable energy and conventional energy, and improves energy utilization efficiency, It reduces the initial investment of the system, has high economic and environmental benefits, and provides a new idea for the comprehensive utilization of renewable energy and conventional energy.
附图说明Description of drawings
图1为本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
图中：1、地源热泵子系统，1-1、地温监测井，1-2、地埋管换热器，1-3、地源侧循环水泵；1-4、地源热泵，1-5、第一电动两通阀，2-1、燃气锅炉，2-2、第二电动两通阀，3-1、冷却塔，3-2、冷却侧循环泵，3-3、电制冷冷水机组，3-4、第三电动两通阀，4、用户侧循环泵，5、空调末端设备。In the figure: 1. Ground source heat pump subsystem, 1-1, ground temperature monitoring well, 1-2, buried tube heat exchanger, 1-3, ground source side circulating water pump; 1-4, ground source heat pump, 1- 5. The first electric two-way valve, 2-1, gas boiler, 2-2, the second electric two-way valve, 3-1, cooling tower, 3-2, cooling side circulation pump, 3-3, electric refrigeration cold water Unit, 3-4, the third electric two-way valve, 4, user-side circulating pump, 5, air-conditioning terminal equipment.
具体实施方式detailed description
为能进一步了解本实用新型的发明内容、特点及功效，兹例举以下实施例，并配合附图详细说明如下：In order to further understand the invention content, characteristics and effects of the present utility model, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:
请参阅图1，一种复合式地源热泵系统，包括并联的地源热泵子系统1、燃气锅炉子系统2和电制冷冷水机组子系统3以及用户侧循环泵4和空调末端设备5。Please refer to Figure 1, a compound ground source heat pump system, including parallel ground source heat pump subsystem 1, gas boiler subsystem 2, electric refrigeration chiller subsystem 3, user-side circulating pump 4 and air conditioner terminal equipment 5.
所述地源热泵子系统1包括地温监测井1-1、地埋管换热器1-2、地源侧循环水泵、地源热泵1-3、地源热泵1-4和第一电动两通阀1-5；依次连接的所述地埋管换热器1-2、所述地源侧循环水泵1-3和所述地源热泵1-4构成一个闭合回路，依次连接的所述地源热泵1-4、所述用户侧循环泵4和所述空调末端设备5构成一个闭合回路，在连接所述地源侧循环水泵1-3与所述用户侧循环泵4的供水管路上设有所述第一电动两通阀1-5；所述地温监测井1-1设置在所述地埋管换热器1-2周围，用于监测地埋管换热器1-2的工作环境温度，监测数据通过信号线缆传至复合式地源热泵系统的监控机房，并为燃气锅炉子系统2和电制冷冷水机组子系统3的启停提供数据参考依据。The ground source heat pump subsystem 1 includes a ground temperature monitoring well 1-1, a buried pipe heat exchanger 1-2, a ground source side circulating water pump, a ground source heat pump 1-3, a ground source heat pump 1-4 and a first electric two Through valve 1-5; the buried pipe heat exchanger 1-2, the ground source side circulating water pump 1-3 and the ground source heat pump 1-4 connected in sequence form a closed loop, and the sequentially connected The ground source heat pump 1-4, the user-side circulating pump 4 and the air-conditioning terminal equipment 5 form a closed loop, and on the water supply pipeline connecting the ground-source side circulating water pump 1-3 and the user-side circulating pump 4 The first electric two-way valve 1-5 is provided; the ground temperature monitoring well 1-1 is arranged around the buried pipe heat exchanger 1-2 for monitoring the temperature of the buried pipe heat exchanger 1-2. The working environment temperature and monitoring data are transmitted to the monitoring room of the composite ground source heat pump system through signal cables, and provide data reference for the start and stop of the gas boiler subsystem 2 and the electric refrigeration chiller subsystem 3.
所述燃气锅炉子系统2包括燃气锅炉2-1和第二电动两通阀2-2，依次连接的所述燃气锅炉2-1、所述用户侧循环泵4和所述空调末端设备5构成一个闭合回路，在连接所述燃气锅炉2-1与所述用户侧循环泵4的供水管路上设有所述第二电动两通阀2-2。The gas boiler subsystem 2 includes a gas boiler 2-1 and a second electric two-way valve 2-2, which are sequentially connected to the gas boiler 2-1, the user-side circulation pump 4 and the air-conditioning terminal equipment 5. A closed circuit, the second electric two-way valve 2-2 is provided on the water supply pipeline connecting the gas boiler 2-1 and the user-side circulating pump 4.
所述电制冷冷水机组子系统3包括冷却塔3-1、冷却侧循环泵3-2、电制冷冷水机组3-3和第三电动两通阀3-4，依次连接的所述冷却塔3-1、所述冷却侧循环泵3-2和所述电制冷冷水机组3-3构成一个闭合回路，依次连接的所述电制冷冷水机组3-3、所述用户侧循环泵4和所述空调末端设备5-5构成一个闭合回路，在连接所述电制冷冷水机组3-3与所述用户侧循环泵4的供水管路上设有所述第三电动两通阀3-4。The electric refrigeration chiller subsystem 3 includes a cooling tower 3-1, a cooling side circulation pump 3-2, an electric refrigeration chiller 3-3 and a third electric two-way valve 3-4, and the cooling tower 3 connected in sequence -1. The cooling-side circulation pump 3-2 and the electric refrigeration chiller 3-3 form a closed loop, and the electric refrigeration chiller 3-3, the user-side circulation pump 4 and the electric refrigeration chiller 3-3 are sequentially connected The air conditioner terminal equipment 5-5 constitutes a closed loop, and the third electric two-way valve 3-4 is provided on the water supply pipeline connecting the electric refrigeration chiller 3-3 and the user-side circulation pump 4.
本实用新型的工作原理：Working principle of the utility model:
冬季地源热泵子系统1和燃气锅炉子系统2联合供热，当地温监测井1-1的监测温度高于设定值，优先开启地源热泵子系统1供热，燃气锅炉子系统2调峰；供热负荷较低时，地源热泵子系统1单独供热，此时地源热泵子系统1中的地源侧循环水泵1-3、地源热泵1-4、第一电动两通阀1-5以及用户侧循环泵4开启，其他设备和电动阀门全都处于关闭状态；随着供热负荷的升高，燃气锅炉子系统2中的燃气锅炉2-1和第二电动两通阀2-2被打开，实现地源热泵子系统1和燃气锅炉子系统2联合供热，热量通过用户侧循环泵4输送至空调末端设备5。当地温监测井1-1的监测温度低于设定值，优先开启燃气锅炉子系统2供热，地源热泵子系统1调峰；供热负荷较低时，燃气锅炉子系统2单独供热，此时燃气锅炉子系统2中的燃气锅炉2-1和第二电动两通阀2-2以及用户侧循环泵4开启，其他设备和电动阀门全都处于关闭状态；随着供热负荷的升高，地源热泵子系统1中的地源侧循环水泵1-3、地源热泵1-4和第一电动两通阀1-5被打开，实现地源热泵子系统1和燃气锅炉子系统2联合供热，热量通过用户侧循环泵4输送至空调末端设备5。通过上述运行策略的切换来保证冬季土壤温度不会过低。In winter, the ground source heat pump subsystem 1 and the gas boiler subsystem 2 jointly supply heat. When the monitored temperature of the local temperature monitoring well 1-1 is higher than the set value, the ground source heat pump subsystem 1 is preferentially turned on for heating, and the gas boiler subsystem 2 adjusts the temperature. peak; when the heating load is low, the ground source heat pump subsystem 1 supplies heat alone. Valves 1-5 and user-side circulating pump 4 are turned on, and other equipment and electric valves are all closed; as the heating load increases, the gas boiler 2-1 and the second electric two-way valve in the gas boiler subsystem 2 2-2 is turned on to realize the joint heat supply of the ground source heat pump subsystem 1 and the gas boiler subsystem 2, and the heat is delivered to the air conditioner terminal equipment 5 through the user-side circulation pump 4. When the monitored temperature of the local temperature monitoring well 1-1 is lower than the set value, the heating of the gas boiler subsystem 2 is given priority, and the ground source heat pump subsystem 1 is peak-shaving; when the heating load is low, the gas boiler subsystem 2 supplies heat alone At this time, the gas boiler 2-1, the second electric two-way valve 2-2 and the user-side circulation pump 4 in the gas boiler subsystem 2 are turned on, and other equipment and electric valves are all closed; High, the ground source side circulating water pump 1-3, the ground source heat pump 1-4 and the first electric two-way valve 1-5 in the ground source heat pump subsystem 1 are opened to realize the ground source heat pump subsystem 1 and the gas boiler subsystem 2 Combined heat supply, the heat is delivered to the air-conditioning terminal equipment 5 through the user-side circulating pump 4 . Through the switching of the above operation strategies, it is ensured that the soil temperature in winter will not be too low.
夏季地源热泵子系统1和电制冷冷水机组子系统3联合供冷，当地温监测井1-1的监测温度低于设定值，优先开启地源热泵子系统1供冷，电制冷冷水机组子系统3调峰；供冷负荷较低时，地源热泵子系统1单独供冷，此时地源热泵子系统1中的地源侧循环水泵1-3、地源热泵1-4和第一电动两通阀2-5以及用户侧循环泵4开启，其他设备和电动阀门全都处于关闭状态；随着供冷负荷的升高，电制冷冷水机组子系统3中的电制冷冷水机组3-3和第三电动两通阀3-4被打开，实现地源热泵子系统1和电制冷冷水机组子系统3联合供冷，冷量通过用户侧循环泵4输送至空调末端设备5。当地温监测井1-1的监测温度高于设定值，优先开启电制冷冷水机组子系统3供冷，地源热泵子系统1调峰；供冷负荷较低时，电制冷冷水机组子系统3单独供冷，此时电制冷冷水机组子系统3中的冷却塔3-1、冷却侧循环泵3-2、电制冷冷水机组3-3和第三电动两通阀3-4以及用户侧循环泵4开启，其他设备和电动阀门全都处于关闭状态；随着供冷负荷的升高，地源热泵子系统1中的地源侧循环水泵1-3、地源热泵1-4和第一电动两通阀1-5被打开，实现地源热泵子系统1和电制冷冷水机组子系统3联合供冷，冷量通过用户侧循环泵4输送至空调末端设备5。通过上述运行策略的切换来保证夏季土壤温度不会过高。In summer, the ground source heat pump subsystem 1 and the electric refrigeration chiller subsystem 3 jointly supply cooling, and the monitored temperature of the local temperature monitoring well 1-1 is lower than the set value, and the ground source heat pump subsystem 1 is preferentially turned on for cooling, and the electric refrigeration chiller Subsystem 3 peak regulation; when the cooling load is low, the ground source heat pump subsystem 1 alone provides cooling, at this time, the ground source side circulating water pump 1-3, ground source heat pump 1-4 and the ground source heat pump subsystem 1 in the ground source heat pump subsystem 1 An electric two-way valve 2-5 and the circulation pump 4 on the user side are opened, and other equipment and electric valves are all closed; as the cooling load increases, the electric refrigeration chiller 3 in the electric refrigeration chiller subsystem 3- 3 and the third electric two-way valve 3-4 are opened to realize the joint cooling supply of the ground source heat pump subsystem 1 and the electric refrigeration chiller subsystem 3, and the cooling capacity is delivered to the air conditioner terminal equipment 5 through the user-side circulating pump 4. When the monitored temperature of the local temperature monitoring well 1-1 is higher than the set value, the electric refrigeration chiller subsystem 3 is preferentially turned on for cooling, and the ground source heat pump subsystem 1 is peak-shaving; when the cooling load is low, the electric refrigeration chiller subsystem 3 Cooling alone, at this time, the cooling tower 3-1, the circulation pump 3-2 on the cooling side, the electric cooling chiller 3-3, the third electric two-way valve 3-4 and the user side in the subsystem 3 of the electric refrigeration chiller The circulation pump 4 is turned on, and other equipment and electric valves are all closed; as the cooling load increases, the ground source side circulating water pump 1-3, the ground source heat pump 1-4 and the first ground source heat pump subsystem 1 The electric two-way valve 1-5 is opened to realize the joint cooling supply of the ground source heat pump subsystem 1 and the electric refrigeration chiller subsystem 3, and the cooling capacity is delivered to the air conditioner terminal equipment 5 through the user-side circulating pump 4. Through the switching of the above operation strategies, it is ensured that the soil temperature in summer will not be too high.
本实用新型将地源热泵系统与燃气锅炉、电制冷冷水机组进行复合，冬季在土壤温度较低的工况下启动燃气锅炉补燃，以减少从土壤中的取热量，保证土壤温度不会过低；夏季在土壤温度较高的情况下，开启电制冷冷水机组进行供冷，以减少向土壤中的拍热量，保证土壤温度不会过高。通过这种可再生能源与常规能源的复合，不仅降低了系统的初投资，还保证了地源热泵系统长期高效的运行。The utility model combines the ground source heat pump system with a gas boiler and an electric refrigeration chiller, and starts the gas boiler for supplementary combustion in winter when the soil temperature is low, so as to reduce the heat taken from the soil and ensure that the soil temperature will not be too high. Low; when the soil temperature is high in summer, turn on the electric refrigeration chiller for cooling to reduce the heat transfer to the soil and ensure that the soil temperature will not be too high. Through the combination of renewable energy and conventional energy, it not only reduces the initial investment of the system, but also ensures the long-term and efficient operation of the ground source heat pump system.
尽管上面结合附图对本实用新型的优选实施例进行了描述，但是本实用新型并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，并不是限制性的，本领域的普通技术人员在本实用新型的启示下，在不脱离本实用新型宗旨和权利要求所保护的范围情况下，还可以做出很多形式，这些均属于本实用新型的保护范围之内。Although the preferred embodiment of the utility model has been described above in conjunction with the accompanying drawings, the utility model is not limited to the above-mentioned specific implementation, and the above-mentioned specific implementation is only illustrative and not restrictive. Under the enlightenment of the utility model, those skilled in the art can also make many forms without departing from the purpose of the utility model and the protection scope of the claims, and these all belong to the protection scope of the utility model.
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| CN201521083453.1U CN205245413U (en) | 2015-12-21 | 2015-12-21 | Combined type ground source heat pump system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548212A (en) * | 2018-04-08 | 2018-09-18 | 陕西亚特尔地源空调有限公司 | The heat balance control method of earth source heat pump and gas fired-boiler composite energy supply regulatory region |
| CN109210830A (en) * | 2018-10-25 | 2019-01-15 | 重庆重通智远空调设备有限公司 | Tube-plate evaporative compound energy water chiller-heater unit and system |
| CN109297223A (en) * | 2018-10-31 | 2019-02-01 | 安徽德胜机电工程有限公司 | A kind of earth source heat pump cold side and freezing side automatic pressure monitor changes in temperature switching valve |
| CN111380133A (en) * | 2020-04-16 | 2020-07-07 | 郑州中兴工程监理有限公司 | Combined type ground source heat pump heating and refrigerating system |
| CN111853914A (en) * | 2020-07-31 | 2020-10-30 | 陕西延长石油国际勘探开发工程有限公司 | A geothermal energy coupled gas boiler heating system |
| CN116906624A (en) * | 2023-07-25 | 2023-10-20 | 中交建筑集团有限公司 | Mixing valve and combined heating system for same |
-
2015
- 2015-12-21 CN CN201521083453.1U patent/CN205245413U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108548212A (en) * | 2018-04-08 | 2018-09-18 | 陕西亚特尔地源空调有限公司 | The heat balance control method of earth source heat pump and gas fired-boiler composite energy supply regulatory region |
| CN109210830A (en) * | 2018-10-25 | 2019-01-15 | 重庆重通智远空调设备有限公司 | Tube-plate evaporative compound energy water chiller-heater unit and system |
| CN109297223A (en) * | 2018-10-31 | 2019-02-01 | 安徽德胜机电工程有限公司 | A kind of earth source heat pump cold side and freezing side automatic pressure monitor changes in temperature switching valve |
| CN111380133A (en) * | 2020-04-16 | 2020-07-07 | 郑州中兴工程监理有限公司 | Combined type ground source heat pump heating and refrigerating system |
| CN111380133B (en) * | 2020-04-16 | 2023-11-28 | 国机中兴工程咨询有限公司 | Combined type ground source heat pump heat supply and refrigeration system |
| CN111853914A (en) * | 2020-07-31 | 2020-10-30 | 陕西延长石油国际勘探开发工程有限公司 | A geothermal energy coupled gas boiler heating system |
| CN116906624A (en) * | 2023-07-25 | 2023-10-20 | 中交建筑集团有限公司 | Mixing valve and combined heating system for same |
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Address after: 300072 Tianda architectural creative building (Science and Technology Park), No.192, Anshan West Road, Nankai District, Tianjin Patentee after: Tianjin University architectural design and Planning Research Institute Co.,Ltd. Address before: No.192 Anshan West Road, Nankai District, Tianjin 300073 Patentee before: TIANJIN University RESEARCH INSTITUTE OF ARCHITECTRUAL DESIGN & URBAN PLANNING |
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Granted publication date: 20160518 |