CN107676905A - Capillary network soil source heat pump central air conditioning system - Google Patents
Capillary network soil source heat pump central air conditioning system Download PDFInfo
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 25
- 239000002689 soil Substances 0.000 title claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 135
- 230000007704 transition Effects 0.000 claims abstract description 5
- 239000000523 sample Substances 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009467 reduction Effects 0.000 abstract description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
- F24F2005/0057—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground receiving heat-exchange fluid from a closed circuit in the ground
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/40—Geothermal heat-pumps
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- Combustion & Propulsion (AREA)
- Central Air Conditioning (AREA)
Abstract
Description
技术领域technical field
本发明涉及采暖制冷空调系统，具体是一种毛细管网土壤源热泵中央空调系统。The invention relates to a heating and cooling air-conditioning system, in particular to a capillary network soil source heat pump central air-conditioning system.
背景技术Background technique
目前，建筑采暖、制冷消耗的能源占建筑能耗的70%左右，因此，需要一种清洁、高效、可持续利用的采暖制冷方式来达到节能的效果，并且随着暖通空调技术的不断应用与发展，居民对室内环境舒适度的要求也越来越高，不仅要考虑在采暖、制冷过程中能源的消耗，也考虑如何经济、快速、舒适的调节室内温度。At present, the energy consumed by building heating and cooling accounts for about 70% of building energy consumption. Therefore, a clean, efficient and sustainable heating and cooling method is needed to achieve energy saving effects, and with the continuous application of HVAC technology With the development and development, residents have higher and higher requirements for indoor environment comfort. Not only must the energy consumption in the heating and cooling process be considered, but also how to adjust the indoor temperature economically, quickly and comfortably.
传统的中央空调系统，室内存在风机噪音，气流分布不均匀，风管长期运行会聚集灰尘、细菌等，影响室内空气品质，并且节能效果不佳。The traditional central air-conditioning system has fan noise in the room, uneven air distribution, and long-term operation of the air duct will accumulate dust, bacteria, etc., which will affect the indoor air quality, and the energy-saving effect is not good.
CN101936580公开了一种毛细管网末端水源热泵中央空调系统，旨在实现能耗低、噪音小、健康安全的目的，但其存在的问题是：水源热泵存在大量抽取地下水，无法100%回灌，造成地面沉降的缺陷；在冬夏过渡季节，水源热泵无法充分发挥地下热能的作用，在不利用机组的情况下，不能实现室内的温度控制。CN101936580 discloses a water-source heat pump central air-conditioning system at the end of a capillary network, which aims to achieve the goals of low energy consumption, low noise, and health and safety. Defects of land subsidence; in the transition season between winter and summer, the water source heat pump cannot fully exert the effect of underground heat energy, and the indoor temperature control cannot be realized without using the unit.
发明内容Contents of the invention
为了解决以上问题，本发明提供一种毛细管网土壤源热泵中央空调系统，来实现室内环境的健康舒适与节能环保。In order to solve the above problems, the present invention provides a capillary network soil source heat pump central air conditioning system to achieve healthy and comfortable indoor environment as well as energy saving and environmental protection.
本发明解决其技术问题采用的技术方案是：The technical scheme that the present invention solves its technical problem adopts is:
一种毛细管网土壤源热泵中央空调系统，包括地埋管换热器、毛细管网、低温热泵机组、高温热泵机组及新风机组，低温热泵机组一侧与新风机组进水口和新风机组出水口连接，低温热泵机组另一侧与地源侧分水器和地源侧集水器连接；高温热泵机组一侧与空调侧分水器和空调侧集水器连接，高温热泵机组另一侧与地源侧分水器和地源侧集水器连接；毛细管网进、出水管路分别与空调侧分水器和空调侧集水器连接；地埋管换热器进、出水管路分别与地源侧分水器和地源侧集水器连接；地源侧分水器与空调侧分水器之间设有连接支路，地源侧集水器与空调侧集水器之间设有连接支路。A capillary network soil source heat pump central air-conditioning system, including a buried pipe heat exchanger, a capillary network, a low-temperature heat pump unit, a high-temperature heat pump unit, and a fresh air unit. One side of the low-temperature heat pump unit is connected to the water inlet of the fresh air unit and the water outlet of the fresh air unit. The other side of the low-temperature heat pump unit is connected to the water separator on the ground source side and the water collector on the ground source side; one side of the high-temperature heat pump unit is connected to the water separator and water collector on the air-conditioning side The side water separator is connected to the water collector on the ground source side; the water inlet and outlet pipes of the capillary network are respectively connected to the water separator on the air conditioner side and the water collector on the air conditioner side; the water inlet and outlet pipes of the buried pipe heat exchanger are connected to the ground source The side water separator is connected to the water collector on the ground source side; there is a connection branch between the water separator on the ground source side and the water collector on the air conditioner side, and there is a connection between the water collector on the ground source side and the water collector on the air conditioner side branch road.
基于上述技术方案的本发明，其设计原理是：Based on the present invention of above-mentioned technical scheme, its design principle is:
地埋管换热器将冷却水与地下土壤换热，调节冷却水温度，从而提高土壤源热泵机组的COP，土壤源热泵机组采用双机组形式，一个为低温热泵机组，夏季输出较低温度冷冻水（3-7℃），提供给新风机组；另一个为高温热泵机组，夏季输出较高温度冷冻水（18-20℃），提供给毛细管网管路；The buried tube heat exchanger exchanges heat between the cooling water and the underground soil, and adjusts the temperature of the cooling water, thereby improving the COP of the soil source heat pump unit. The soil source heat pump unit adopts a dual-unit form, and one is a low-temperature heat pump unit, which outputs lower temperature refrigeration in summer Water (3-7°C) is provided to the fresh air unit; the other is a high-temperature heat pump unit, which outputs higher temperature chilled water (18-20°C) in summer and provides it to the capillary network pipeline;
毛细管网管路以水为介质，实现冷热量的传递，毛细管网管路在立管、各区、各网片之间采用同程式+集分水器（口径DN25）原则，每一个分水支路最大供应面积控制在25m2，毛细管网内流速控制在0.04m/s-0.06m/s之间，毛细管网敷设在顶棚和墙面，毛细管网只承担室内显热负荷；The capillary network pipeline uses water as the medium to realize the transfer of cold and heat. The capillary network pipeline adopts the principle of the same program + water collector (caliber DN25) between the standpipe, each area, and each mesh. Each water distribution branch has the largest The supply area is controlled at 25m 2 , the flow velocity in the capillary network is controlled between 0.04m/s-0.06m/s, the capillary network is laid on the ceiling and wall, and the capillary network only bears the indoor sensible heat load;
新风机组通过循环的冷冻水对新鲜空气进行降温除湿，将室内湿度降下来，主要承担室内的湿负荷，同时在室内安装有露点保护器，若毛细管网水温低于室内空气露点温度，通过调节阀门来控制毛细管内水量的大小；The fresh air unit cools and dehumidifies the fresh air through circulating chilled water, lowers the indoor humidity, and mainly bears the indoor humidity load. At the same time, a dew point protector is installed indoors. If the water temperature of the capillary network is lower than the indoor air dew point temperature, it will To control the amount of water in the capillary;
地源侧分、集水器与空调侧分、集水器直接串联，只需水泵提供动力，将地源侧循环水与空调侧循环水混合，将室内空气以水为介质与地下土壤进行热量交换。Ground source side distribution, water collector and air conditioner side distribution, water collector are directly connected in series, only the water pump is needed to provide power, the ground source side circulating water and air conditioning side circulating water are mixed, and the indoor air uses water as the medium to exchange heat with the underground soil exchange.
与现有技术相比，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:
（1）没有常规空调方式的风机噪声和强吹风，柔和安静、健康卫生，并且辐射换热方式比对流换热舒适度强，人体体感舒适；(1) There is no fan noise and strong blowing in conventional air-conditioning methods, it is soft, quiet, healthy and hygienic, and the radiation heat transfer method is more comfortable than convective heat transfer, and the human body feels comfortable;
（2）有效利用低品位能源并提高机组COP，冬季供暖热水温度为30-40℃，夏季供冷冷水温度为18-20℃；(2) Effectively utilize low-grade energy and improve unit COP. The temperature of hot water for heating in winter is 30-40°C, and the temperature of cold water for cooling in summer is 18-20°C;
（3）普通地板采暖热惯性一般为6小时左右，毛细管网热惯性约为0.5小时，便于分区分时智能温控，不但舒适性强，而且有利于节能；(3) The thermal inertia of ordinary floor heating is generally about 6 hours, and the thermal inertia of the capillary network is about 0.5 hours, which is convenient for zoned and time-sharing intelligent temperature control, which is not only comfortable, but also conducive to energy saving;
（4）毛细管网单位面积散热量大，轻薄、柔软、荷载小，方便与装饰层结合安装，可以因地制宜的安装在地面、墙面、顶棚，灵活的安装形式，适用于各建筑不同功能分区的使用需求；(4) The heat dissipation per unit area of the capillary network is large, light and thin, soft, and small in load. It is convenient to be installed in combination with the decorative layer. It can be installed on the ground, wall, and ceiling according to local conditions. The flexible installation form is suitable for different functional areas of various buildings. Usage requirements;
（5）在过渡季节，可以直接将地下土壤作为冷热源，不需要启动制冷（热）机组，节能效果显著。(5) In the transitional season, the underground soil can be directly used as a cold and heat source without starting the refrigeration (heating) unit, and the energy saving effect is remarkable.
附图说明Description of drawings
图1是本发明实施例的结构示意图；Fig. 1 is the structural representation of the embodiment of the present invention;
图中：1-地埋管换热器；2-毛细管网；3-低温热泵机组；44-高温热泵机组；5-地源侧分水器；6-地源侧集水器；7-空调侧分水器；8-空调侧集水器；9-新风机组进水口；10-新风机组出水口；11-低温热泵机组冷却水水泵；12-高温热泵机组冷却水水泵；13-过渡季水泵；14-温湿度探头；15-湿度控制器；16-电动阀门。In the figure: 1-buried pipe heat exchanger; 2-capillary pipe network; 3-low temperature heat pump unit; 44-high temperature heat pump unit; 5-ground source side water separator; 6-ground source side water collector; 7-air conditioner Side water separator; 8-air conditioner side water collector; 9-water inlet of fresh air unit; 10-water outlet of fresh air unit; 11-cooling water pump of low temperature heat pump unit; 12-cooling water pump of high temperature heat pump unit; 13-transition season water pump ; 14-temperature and humidity probe; 15-humidity controller; 16-electric valve.
具体实施方式detailed description
下面结合附图及实施例对本发明作详细说明。The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
参见图1，一种毛细管网土壤源热泵中央空调系统，由地埋管换热器1、毛细管网2、低温热泵机组3、高温热泵机组4、新风机组、水泵及分、集水器组成，低温热泵机组3一侧与新风机组进水口10和新风机组出水口9连接，低温热泵机组3另一侧与地源侧分水器5和地源侧集水器6连接；高温热泵机组4一侧与空调侧分水器7和空调侧集水器8连接，高温热泵机组4另一侧与地源侧分水器5和地源侧集水器6连接；毛细管网2进、出水管路分别与空调侧分水器7和空调侧集水器8连接；地埋管换热器1进、出水管路分别与地源侧分水器5和地源侧集水器6连接；地源侧分水器5与空调侧分水器7之间设有连接支路，地源侧集水器6与空调侧集水器8之间设有连接支路。Referring to Fig. 1, a capillary network soil source heat pump central air-conditioning system is composed of a buried tube heat exchanger 1, a capillary network 2, a low-temperature heat pump unit 3, a high-temperature heat pump unit 4, a fresh air unit, a water pump, and a water collector. One side of the low-temperature heat pump unit 3 is connected to the water inlet 10 of the fresh air unit and the water outlet 9 of the fresh air unit, and the other side of the low-temperature heat pump unit 3 is connected to the water separator 5 on the ground source side and the water collector 6 on the ground source side; The other side of the high-temperature heat pump unit 4 is connected to the water separator 5 on the ground source side and the water collector 6 on the ground source side; the water inlet and outlet pipes of the capillary network 2 respectively connected to the water separator 7 on the air-conditioning side and the water collector 8 on the air-conditioning side; A connection branch is provided between the side water separator 5 and the air conditioner side water separator 7 , and a connection branch is provided between the ground source side water collector 6 and the air conditioner side water collector 8 .
低温热泵机组3与新风机组出水口9、地源侧集水器6之间的连接管路上分别设置有低温热泵机组冷冻水水泵11。Chilled water pumps 11 of the low-temperature heat pump unit are respectively arranged on the connection pipelines between the low-temperature heat pump unit 3 , the water outlet 9 of the fresh air unit, and the water collector 6 on the ground source side.
高温热泵机组4与空调侧集水器8、地源侧集水器6之间的连接管路上分别设置有高温热泵机组冷冻水水泵12。High-temperature heat pump chilled water pumps 12 are arranged on the connecting pipelines between the high-temperature heat pump unit 4 and the water collector 8 at the air-conditioning side and the water collector 6 at the ground source side.
空调侧集水器8与地源侧集水器6之间的连接支路上设有过渡季水泵13。A transition season water pump 13 is provided on the connection branch between the air conditioner side water collector 8 and the ground source side water collector 6 .
室内的温湿度探头14与毛细管网2进水管口部的电动阀门16之间装有湿度控制器15。A humidity controller 15 is installed between the temperature and humidity probe 14 in the room and the electric valve 16 at the water inlet of the capillary network 2 .
夏季工况：Summer conditions:
地埋管换热器1与地源侧分水器5和地源侧集水器6接通，地源侧分水器5与高温热泵机组4的冷却水进水口和低温热泵机组3的冷却水进水口接通，地源侧集水器6与高温热泵机组4的冷却水出水口和低温热泵机组3的冷却水出水口接通，高温热泵机组4的冷冻水进、出水口分别与空调侧集水器8、空调侧分水器7接通，低温热泵机组3的冷冻水进出水口分别与新风机组进水口9和新风机组出水口10连接，通过湿度控制器15监测毛细管网2温度，湿度控制器15调节电动阀门16的开启与闭合，保证毛细管网2温度不低于室内空气露点温度，以防结露。The buried pipe heat exchanger 1 is connected to the water separator 5 on the ground source side and the water collector 6 on the ground source side, and the water separator 5 on the ground source side is connected to the cooling water inlet of the high temperature heat pump unit 4 and the cooling of the low temperature heat pump unit 3 The water inlet is connected, the water collector 6 on the ground source side is connected to the cooling water outlet of the high-temperature heat pump unit 4 and the cooling water outlet of the low-temperature heat pump unit 3, and the chilled water inlet and outlet of the high-temperature heat pump unit 4 are connected to the air conditioner respectively. The side water collector 8 and the air conditioner side water separator 7 are connected, the chilled water inlet and outlet of the low-temperature heat pump unit 3 are respectively connected to the water inlet 9 of the fresh air unit and the water outlet 10 of the fresh air unit, and the temperature of the capillary network 2 is monitored through the humidity controller 15, The humidity controller 15 regulates the opening and closing of the electric valve 16 to ensure that the temperature of the capillary network 2 is not lower than the dew point temperature of the indoor air to prevent condensation.
冬季工况：Winter conditions:
地埋管换热器1与地源侧分水器5和地源侧集水器6接通，地源侧分水器5与高温热泵机组4的冷却水进水口和低温热泵机组3的冷却水进水口接通，地源侧集水器6与高温热泵机组4的冷却水出水口和低温热泵机组3的冷却水出水口接通，高温热泵机组4的冷冻水进、出水口分别与空调侧集水器8、空调侧分水器7接通，低温热泵机组3的冷冻水进、出水口分别与新风机组进水口9和新风机组出水口10连接，高温热泵机组4与低温热泵机组3均为毛细管网2和新风机组提供35-40℃热水，为室内提供热量。The buried pipe heat exchanger 1 is connected to the water separator 5 on the ground source side and the water collector 6 on the ground source side, and the water separator 5 on the ground source side is connected to the cooling water inlet of the high temperature heat pump unit 4 and the cooling of the low temperature heat pump unit 3 The water inlet is connected, the water collector 6 on the ground source side is connected to the cooling water outlet of the high-temperature heat pump unit 4 and the cooling water outlet of the low-temperature heat pump unit 3, and the chilled water inlet and outlet of the high-temperature heat pump unit 4 are connected to the air conditioner respectively. The side water collector 8 and the air conditioner side water separator 7 are connected, the chilled water inlet and outlet of the low-temperature heat pump unit 3 are respectively connected to the water inlet 9 of the fresh air unit and the water outlet 10 of the fresh air unit, and the high-temperature heat pump unit 4 is connected to the low-temperature heat pump unit 3 Both the capillary network 2 and the fresh air unit provide 35-40°C hot water to provide heat for the room.
冬夏过渡季工况：Winter and summer transition season conditions:
地埋管换热器1与地源侧分水器5、地源侧集水器6接通，地源侧分水器5与空调侧分水器7接通，地源侧集水器6与空调侧集水器8接通，毛细管网2进、出水口分别与空调侧分水器7和空调侧集水器8接通，过渡季水泵14提供动力，直接将室内空气通过介质水与地下土壤进行换热。The buried pipe heat exchanger 1 is connected to the water separator 5 on the ground source side and the water collector 6 on the ground source side, the water separator 5 on the ground source side is connected to the water separator 7 on the air conditioner side, and the water collector 6 on the ground source side It is connected with the water collector 8 on the air conditioner side, and the water inlet and outlet of the capillary network 2 are respectively connected with the water separator 7 on the air conditioner side and the water collector 8 on the air conditioner side. The underground soil conducts heat exchange.
综上所述，本发明通过利用毛细管网2换热面积大、壁薄导热性好、换热均匀、水力损失小、无噪声的特点，以及土壤源热泵系统利用地下恒温土壤温度相对稳定的特性，通过深埋于建筑物周围的地埋管系统与建筑物内部完成热量传递，冬季从土壤中取热，向建筑物供暖；夏季向土壤排热，为建筑物制冷。毛细管网+土壤源热泵系统相结合，利用两者的优点来达到调节室内温度和节能减排的双重效果。In summary, the present invention utilizes the characteristics of large heat transfer area, thin wall, good thermal conductivity, uniform heat transfer, small hydraulic loss, and no noise of the capillary network 2, and the soil source heat pump system utilizes the characteristics of relatively stable underground constant temperature soil temperature , Through the buried pipe system buried deep around the building and the inside of the building to complete the heat transfer, it takes heat from the soil in winter to heat the building; in summer, it discharges heat to the soil to cool the building. The combination of capillary network + soil source heat pump system uses the advantages of both to achieve the dual effects of regulating indoor temperature and energy saving and emission reduction.
以上所述仅为本发明较佳可行的实施例而已，并非因此局限本发明的权利范围，凡运用本发明说明书及附图内容所作的等效结构变化，均包含于本发明的权利范围之内。The above descriptions are only preferred and feasible embodiments of the present invention, and are not intended to limit the scope of rights of the present invention. All equivalent structural changes made by using the description and accompanying drawings of the present invention are included in the scope of rights of the present invention. .
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