CN107726424A - A kind of sewage source heat pump and data center's composite clean cold and heat supply system and method - Google Patents
A kind of sewage source heat pump and data center's composite clean cold and heat supply system and method Download PDFInfo
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- 239000010865 sewage Substances 0.000 title claims abstract description 162
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000002131 composite material Substances 0.000 title claims abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 104
- 238000005057 refrigeration Methods 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 34
- 238000005265 energy consumption Methods 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 130
- 239000008236 heating water Substances 0.000 claims description 8
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 4
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000003570 air Substances 0.000 description 14
- 238000004378 air conditioning Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
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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
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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Abstract
本发明属于污水源冷、热量回收利用技术领域的一种污水源热泵与数据中心复合清洁供冷供热系统及方法。该污水源热泵与数据中心复合清洁供冷供热系统包括污水厂、污水源热泵系统、换热站、数据中心制冷机房、数据中心、空气源热泵、需冷或需热用户；污水源热泵系统从污水中回收的冷量，提供给数据中心及其附近用户；从污水中提供的热量以及从数据中心排出高温空气中回收的热量，同时提供给附近用户；本发明不仅能够利用污水源热泵回收污水厂中污水的冷、热量，还能回收数据中心产生的热量，为数据中心和附近用户供冷、热，减少数据中心的能源消耗，减少或抵消污水厂的碳排放量，实现能量梯级利用和碳中和的效果。
The invention belongs to the technical field of sewage source cooling and heat recovery and utilization, and relates to a combined clean cooling and heating system and method for a sewage source heat pump and a data center. The sewage source heat pump and data center composite clean cooling and heating system includes sewage plant, sewage source heat pump system, heat exchange station, data center refrigeration room, data center, air source heat pump, cooling or heating users; sewage source heat pump system The cold energy recovered from the sewage is provided to the data center and its nearby users; the heat provided from the sewage and the heat recovered from the high-temperature air discharged from the data center are simultaneously provided to nearby users; the invention can not only use the sewage source heat pump to recover The cold and heat of the sewage in the sewage plant can also recover the heat generated by the data center, provide cooling and heat for the data center and nearby users, reduce the energy consumption of the data center, reduce or offset the carbon emissions of the sewage plant, and realize energy cascade utilization and carbon neutrality.
Description
技术领域technical field
本发明属于污水源冷、热量回收利用和制冷、供热技术领域，特别涉及一种污水源热泵与数据中心复合清洁供冷供热系统及方法。The invention belongs to the technical field of sewage source cooling, heat recovery and utilization, refrigeration and heating, and in particular relates to a combined clean cooling and heating system and method of a sewage source heat pump and a data center.
背景技术Background technique
随着互联网通信业务的快速发展，数据中心建设数量也进入高速增长期。目前我国数据中心总耗电量达850亿kw·h，其中空调系统能耗占数据中心总能耗的40％左右，且大多数数据中心热通道的温度范围在27-46℃之间，这些热空气中热量并无回收利用，而是直接排出室外，因此，数据中心不仅需要的制冷能耗高，而且产生的热量没有得到充分利用，造成了较大的能源浪费。With the rapid development of Internet communication services, the number of data center construction has also entered a period of rapid growth. At present, the total power consumption of my country's data centers reaches 85 billion kw h, of which the energy consumption of the air conditioning system accounts for about 40% of the total energy consumption of the data centers, and the temperature range of the hot aisles of most data centers is between 27-46°C. The heat in the hot air is not recycled, but directly discharged outside. Therefore, the data center not only requires high energy consumption for cooling, but also the heat generated is not fully utilized, resulting in a large waste of energy.
我国年污水排放量达464亿立方米，设单位污水量以100立方米计，所能利用的显热温差为5℃，则可利用冷热量为2.1×106KJ；制冷时，可节省一次能源(燃煤)0.357×106kJ，相当于21㎏燃煤，可节省一次能源(燃气)0.168×106KJ，相当于10.5立方米燃气；城市污水温度是一种不可多得的热泵冷源，一年四季相对稳定，夏季水体温度比环境空气温度低，这种温度特性使得污水源热泵比传统空调系统运行效率要高，能够大大节省运行费用；目前城市中排放的大量污水中冷量未能够充分利用，同样造成大量的能源浪费，不符合循环经济和节能环保的要求。China's annual sewage discharge amounted to 46.4 billion cubic meters. Assuming that the unit sewage volume is 100 cubic meters, the sensible heat temperature difference that can be used is 5°C, and the cold heat that can be used is 2.1×10 6 KJ; when cooling, it can save The primary energy (coal) is 0.357×10 6 kJ, which is equivalent to 21 kg of coal, and the primary energy (gas) can be saved by 0.168×10 6 KJ, which is equivalent to 10.5 cubic meters of gas; the temperature of urban sewage is a rare heat pump The cold source is relatively stable throughout the year, and the temperature of the water body in summer is lower than that of the ambient air. This temperature characteristic makes the sewage source heat pump more efficient than the traditional air conditioning system, which can greatly save operating costs; at present, a large amount of sewage discharged in the city is cooled The energy is not fully utilized, which also causes a large amount of energy waste, which does not meet the requirements of circular economy, energy conservation and environmental protection.
发明内容Contents of the invention
本发明的目的是提供了一种污水源热泵与数据中心复合清洁供冷供热系统及方法，其特征在于，所述数据中心系统包括顺次连通的污水厂1、回收污水冷量的污水源热泵系统2、一级换热站31、数据中心制冷机房4、数据中心5、空气源热泵6、需冷或需热用户7、二级换热站32；The purpose of the present invention is to provide a sewage source heat pump and data center composite clean cooling and heating system and method, characterized in that the data center system includes a sequentially connected sewage plant 1 and a sewage source for recovering the cooling capacity of sewage Heat pump system 2, primary heat exchange station 31, data center refrigeration room 4, data center 5, air source heat pump 6, cooling or heating users 7, secondary heat exchange station 32;
所述污水源热泵系统2夏季工况时冷凝端通过污水供水管网9与污水厂1相连，蒸发端通过污水源热泵出水管网10与一级换热站31连接；冬季工况时蒸发端通过污水供水管网9与污水厂1相连，冷凝端通过污水源热泵出水管网10与一级换热站31连接；The condensing end of the sewage source heat pump system 2 is connected to the sewage plant 1 through the sewage water supply pipe network 9 in summer working conditions, and the evaporation end is connected to the primary heat exchange station 31 through the sewage source heat pump outlet pipe network 10; The sewage water supply pipe network 9 is connected to the sewage plant 1, and the condensation end is connected to the primary heat exchange station 31 through the sewage source heat pump outlet pipe network 10;
所述一级换热站31通过冷冻水供水管网11与数据中心制冷机房4相连，数据中心5通过冷冻水回水管网12与一级换热站31相连；一级换热站31、数据中心制冷机房4和数据中心5构成循环回路；The primary heat exchange station 31 is connected to the data center refrigerator room 4 through the chilled water supply pipe network 11, and the data center 5 is connected to the primary heat exchange station 31 through the chilled water return pipe network 12; the primary heat exchange station 31, data The central refrigeration machine room 4 and the data center 5 form a circulation loop;
所述一级换热站31通过一级换热站出水管网13与二级换热站32相连，二级换热站32通过二级换热站出水管网14与需冷用户制冷机房8连接，需冷用户7通过用户回水管网15与二级换热站32连接，二级换热站32、需冷用户7、需冷用户制冷机房8构成循环回路；The primary heat exchange station 31 is connected to the secondary heat exchange station 32 through the water outlet pipe network 13 of the primary heat exchange station, and the secondary heat exchange station 32 is connected to the refrigeration room 8 of the cooling user through the water outlet pipe network 14 of the secondary heat exchange station. Connection, the cooling user 7 is connected to the secondary heat exchange station 32 through the user return water pipe network 15, and the secondary heat exchange station 32, the cooling user 7, and the cooling user refrigeration room 8 form a circulation loop;
二级换热站32还通过用户进水管网19与需热用户7连接；The secondary heat exchange station 32 is also connected to the heat-demanding user 7 through the user water inlet pipe network 19;
所述空气源热泵6通过热空气供气管网16与数据中心5连接，通过采暖供水管网17、采暖回水管网18与需热用户7相连；The air source heat pump 6 is connected to the data center 5 through the hot air supply pipe network 16, and connected to the heat-demanding user 7 through the heating water supply pipe network 17 and the heating return water pipe network 18;
所述二级换热站32通过污水源热泵回水管网20与污水源热泵系统2连接，污水源热泵系统2通过污水回水管网21与污水厂1连接。The secondary heat exchange station 32 is connected to the sewage source heat pump system 2 through the sewage source heat pump return pipe network 20 , and the sewage source heat pump system 2 is connected to the sewage plant 1 through the sewage return water pipe network 21 .
所述数据中心制冷机房4为数据中心5提供冷量。The data center refrigeration room 4 provides cooling capacity for the data center 5 .
所述需冷用户制冷机房8为需冷用户7提供冷量。The refrigeration machine room 8 for users who need cooling provides cooling capacity for users 7 who need cooling.
所述一级换热站31是污水源热泵系统2出水和数据中心制冷机房4冷冻水回水的换热装置。The primary heat exchange station 31 is a heat exchange device for the outlet water of the sewage source heat pump system 2 and the return water of the chilled water in the refrigeration room 4 of the data center.
所述二级换热站32是一级换热站31出水和需冷用户7回水的换热装置。The secondary heat exchange station 32 is a heat exchange device for water output from the primary heat exchange station 31 and return water to users 7 requiring cooling.
一种污水源热泵与数据中心复合清洁供冷供热系统的方法，其特征在于，污水源热泵系统2从污水中提取的冷量，通过一级换热站31进入数据中心制冷机房4，冷却数据中心制冷机房4的进水，当一级换热站31冷量不足时，数据中心制冷机房4作为辅助冷源为数据中心5提供冷量，降低数据中心5的能量损耗，为数据中心5提供完冷量的水通过冷冻水回水管网12回流至一级换热站31；A method for a combined clean cooling and heating supply system of a sewage source heat pump and a data center, characterized in that the cooling capacity extracted from the sewage by the sewage source heat pump system 2 enters the refrigeration room 4 of the data center through the primary heat exchange station 31, and is cooled When the cooling capacity of the primary heat exchange station 31 is insufficient for the water inflow to the data center refrigeration room 4, the data center refrigeration room 4 serves as an auxiliary cold source to provide cooling capacity for the data center 5, reducing the energy loss of the data center 5 and providing cooling capacity for the data center 5. The water that has provided the cooling capacity returns to the primary heat exchange station 31 through the chilled water return pipe network 12;
一级换热站31的冷却水经一级换热站出水管网13输送到二级换热站32，通过二级换热站出水管网14冷却需冷用户制冷机房8进水，不足冷量由用户制冷机房8提供，降低需冷用户7的能量消耗；The cooling water from the primary heat exchange station 31 is transported to the secondary heat exchange station 32 through the water outlet pipe network 13 of the primary heat exchange station, and is cooled by the water outlet pipe network 14 of the secondary heat exchange station to cool the water that needs to be cooled. The amount is provided by the user's refrigeration room 8, reducing the energy consumption of the user 7 who needs to be cooled;
污水源热泵系统2从污水中提取的热量，直接进入二级换热站32，通过加热用户回水管网15中的回水温度，为需热用户7供热；The heat extracted from the sewage by the sewage source heat pump system 2 directly enters the secondary heat exchange station 32, and supplies heat to the user 7 by heating the return water temperature in the user return water pipe network 15;
数据中心5产生的高温气体，经空气源热泵6将热量传递给热水，经采暖供水管网17输送至需热用户7，为需热用户7提供热量；The high-temperature gas generated in the data center 5 transfers heat to hot water through the air source heat pump 6, and is transported to the heat-demanding user 7 through the heating and water supply pipe network 17 to provide heat for the heat-demanding user 7;
二级换热站32的出水经污水源热泵回水管网20回流至污水源热泵2，再通过污水回水管网21回流到污水厂1。The outlet water of the secondary heat exchange station 32 flows back to the sewage source heat pump 2 through the sewage source heat pump return water pipe network 20 , and then returns to the sewage plant 1 through the sewage return water pipe network 21 .
充分利用污水中冷、热量以及数据中心产生的热量，实现能量梯级利用和碳中和。Make full use of the cold and heat in the sewage and the heat generated by the data center to achieve energy cascade utilization and carbon neutrality.
本发明的有益效果为：The beneficial effects of the present invention are:
本发明不仅能够利用污水源热泵回收污水厂中污水的冷、热量，减少数据中心的能源消耗，为数据中心附近需冷用户供冷、需热用户供热，还能回收数据中心产生的热量，为数据中心附近需热用户供热，减少或抵消污水厂的碳排放量，实现能量梯级利用和实现碳中和的效果。The invention can not only use the sewage source heat pump to recycle the cold and heat of the sewage in the sewage plant, reduce the energy consumption of the data center, provide cooling and heat for users near the data center who need cooling and heat, but also recover the heat generated by the data center. Provide heat for users who need heat near the data center, reduce or offset the carbon emissions of the sewage plant, realize energy cascade utilization and achieve carbon neutral effects.
附图说明Description of drawings
图1为一种污水源热泵与数据中心复合清洁供冷供热系统的示意图。Fig. 1 is a schematic diagram of a combined clean cooling and heating system of a sewage source heat pump and a data center.
主要附图标记说明：Explanation of main reference signs:
1、污水厂；2-污水源热泵系统；3-换热站；31-一级换热站；32-二级换热；4-数据中心制冷机房；5-数据中心；6-空气源热泵；7-需冷/热用户；8-需冷用户制冷机房；9-污水供水管网；10-污水源热泵出水管网；11-冷冻水供水管网；12-冷冻水回水管网；13-一级换热站出水管网；14-二级换热站出水管网；15-用户回水管网；16-热空气供气管网；17-采暖供水管网；18-采暖回水管网；19-用户进水管网；20-污水源热泵回水管网；21-污水回水管网；1. Sewage plant; 2-sewage source heat pump system; 3-heat exchange station; 31-first-level heat exchange station; 32-secondary heat exchange; 4-data center refrigeration room; 5-data center; 6-air source heat pump ;7-users who need cooling/heating; 8-refrigeration room for users who need cooling; 9-sewage water supply pipe network; 10-sewage source heat pump outlet pipe network; 11-chilled water supply pipe network; 12-chilled water return pipe network; 13 -Outlet water pipe network of primary heat exchange station; 14-Outlet water pipe network of secondary heat exchange station; 15-User return water pipe network; 16-Hot air supply pipe network; 17-Heating water supply pipe network; 18-Heating return water pipe network ;19-User water inlet pipe network; 20-Sewage source heat pump return water pipe network; 21-Sewage return water pipe network;
具体实施方式detailed description
本发明提供了一种污水源热泵与数据中心复合清洁供冷供热系统及方法，下面结合附图和实施例对本发明的具体实施方式做进一步的说明。The present invention provides a sewage source heat pump and data center combined clean cooling and heating system and method. The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
如图1所示的污水源热泵与数据中心复合清洁供冷供热系统，包括顺次连通的污水厂1、用于回收污水冷量的污水源热泵系统2、一级换热站31、数据中心制冷机房4、数据中心5、空气源热泵6、需冷/热用户7、二级换热站32，数据中心制冷机房4为数据中心5提供冷量。As shown in Figure 1, the combined clean cooling and heating system of sewage source heat pump and data center includes a sequentially connected sewage plant 1, a sewage source heat pump system 2 for recovering the cooling capacity of sewage, a primary heat exchange station 31, data Central refrigeration room 4, data center 5, air source heat pump 6, cooling/heating users 7, secondary heat exchange station 32, data center refrigeration room 4 provides cooling capacity for data center 5.
污水厂1为一般城镇污水处理厂，将原生污水或污水厂二级出水作为冷源，采用直接换热或间接换热方式进入污水源热泵系统2中。The sewage plant 1 is a general urban sewage treatment plant, which uses the primary sewage or the secondary effluent of the sewage plant as a cold source, and enters the sewage source heat pump system 2 through direct heat exchange or indirect heat exchange.
夏季工况时污水源热泵系统2冷凝端通过污水供水管网9与污水厂1相连，冷凝端的换热器为污水源换热器，与污水处理厂的原生污水或二级出水相连，根据利用污水情况的不同，有不同的运行工况；蒸发端通过污水源热泵出水管网10与一级换热站31连接；污水源热泵系统2从污水厂1中提取冷量。In summer, the condensing end of the sewage source heat pump system 2 is connected to the sewage plant 1 through the sewage water supply pipe network 9, and the heat exchanger at the condensing end is a sewage source heat exchanger, which is connected to the primary sewage or secondary effluent of the sewage treatment plant. Different sewage conditions have different operating conditions; the evaporation end is connected to the primary heat exchange station 31 through the sewage source heat pump outlet pipe network 10; the sewage source heat pump system 2 extracts cooling capacity from the sewage plant 1.
一级换热站31通过冷冻水供水管网11与数据中心制冷机房4相连，数据中心5通过冷冻水回水管网12与一级换热站31相连；一级换热站31、数据中心制冷机房4和数据中心5构成循环回路；一级换热站31是污水源热泵出水管网10与冷冻水回水管网12的换热装置；污水源热泵系统2从污水厂1污水中提取的冷量，通过一级换热站31冷却冷冻水回水管网12中的回水，将冷量通过污水源热泵出水管网10传输至数据中心制冷机房4进水，冷却数据中心制冷机房4的进水，当一级换热站31冷量不足时，数据中心制冷机房4作为辅助冷源为数据中心5提供冷量，降低数据中心5的能量损耗，为数据中心5提供完冷量的水通过冷冻水回水管网12回流至一级换热站31。The primary heat exchange station 31 is connected to the refrigeration room 4 of the data center through the chilled water supply pipe network 11, and the data center 5 is connected to the primary heat exchange station 31 through the chilled water return pipe network 12; the primary heat exchange station 31, data center cooling The computer room 4 and the data center 5 form a circulation loop; the primary heat exchange station 31 is a heat exchange device for the sewage source heat pump outlet pipe network 10 and the chilled water return pipe network 12; Cool the return water in the chilled water return pipe network 12 through the primary heat exchange station 31, and transfer the cooling capacity to the water inlet of the data center refrigeration room 4 through the sewage source heat pump outlet pipe network 10, and cool the inlet water of the data center refrigerator room 4. Water, when the cooling capacity of the primary heat exchange station 31 is insufficient, the data center refrigeration room 4 serves as an auxiliary cold source to provide cooling capacity for the data center 5, reducing the energy loss of the data center 5, and providing the full cooling capacity for the data center 5. The chilled water return pipe network 12 returns to the primary heat exchange station 31 .
一级换热站31通过一级换热站出水管网13与二级换热站32相连，二级换热站32通过二级换热站出水管网14与需冷用户制冷机房8连接，需冷用户7通过用户回水管网15与二级换热站32连接，二级换热站32、需冷用户7、需冷用户制冷机房8构成循环回路；需冷用户制冷机房8为需冷用户7提供冷量，一级换热站31的冷却水经一级换热站出水管网13输送到二级换热站32，通过冷却用户回水管网15的回水，将冷量通过二级换热站出水管网14传输给需冷用户制冷机房8进水，冷却需冷用户制冷机房8的进水，不足冷量由用户制冷机房8提供，降低需冷用户7的能量消耗，通过利用一级换热站31出水中的冷量，形成对污水厂1污水中冷量的多级利用。The primary heat exchange station 31 is connected to the secondary heat exchange station 32 through the water outlet pipe network 13 of the primary heat exchange station, and the secondary heat exchange station 32 is connected to the refrigeration room 8 of the cooling user through the water outlet pipe network 14 of the secondary heat exchange station The cooling user 7 is connected to the secondary heat exchange station 32 through the user return water pipe network 15, and the secondary heat exchange station 32, the cooling user 7, and the cooling user refrigeration room 8 form a circulation loop; The user 7 provides cooling capacity, and the cooling water of the primary heat exchange station 31 is transported to the secondary heat exchange station 32 through the outlet water pipe network 13 of the primary heat exchange station, and the cooling water is passed through the secondary heat exchange station 32 by cooling the return water of the user's return water pipe network 15. The water outlet pipe network 14 of the stage heat exchange station transmits the water intake to the user’s refrigeration room 8 that requires cooling, and cools the incoming water of the user’s refrigeration room 8. The insufficient cooling capacity is provided by the user’s refrigeration room 8, reducing the energy consumption of the user’s 7. Using the cooling capacity of the effluent water from the primary heat exchange station 31 forms a multi-stage utilization of the cooling capacity in the sewage of the sewage plant 1 .
冬季工况时，污水源热泵系统2蒸发端通过污水供水管网9与污水厂1相连，蒸发端的换热器为污水源换热器，与污水处理厂的原生污水或二级出水相连，根据利用污水情况的不同，有不同的运行工况；冷凝端通过污水源热泵出水管网10与一级换热站31连接；污水源热泵系统2从污水厂1中提取热量。In winter working conditions, the evaporation end of the sewage source heat pump system 2 is connected to the sewage plant 1 through the sewage water supply pipe network 9. There are different operating conditions due to different sewage conditions; the condensation end is connected to the primary heat exchange station 31 through the sewage source heat pump outlet pipe network 10; the sewage source heat pump system 2 extracts heat from the sewage plant 1.
二级换热站32通过用户进水管网19与需热用户7连接，污水源热泵系统2从污水中提取的热量，直接进入二级换热站32，通过加热用户回水管网15中的回水温度，为需热用户7供热；The secondary heat exchange station 32 is connected to the heat-demanding user 7 through the user water inlet pipe network 19, and the heat extracted from the sewage by the sewage source heat pump system 2 directly enters the secondary heat exchange station 32, and heats the water in the user return water pipe network 15. The return water temperature is used to provide heat for the heat-demanding user 7;
空气源热泵6通过热空气供气管网16与数据中心5连接，通过采暖供水管网17、采暖回水管网18与需热用户7相连；数据中心5产生的高温气体，经空气源热泵6将热量传递给采暖回水，加热后的水经采暖供水管网17输送至需热用户7，为需热用户7提供热量，需热用户7的出水再次进入空气源热泵6加热，形成循环回路；The air source heat pump 6 is connected to the data center 5 through the hot air supply pipe network 16, and connected to the heat-demanding users 7 through the heating water supply pipe network 17 and the heating return water pipe network 18; The heat is transferred to the heating return water, and the heated water is transported to the heat-demanding user 7 through the heating water supply pipe network 17 to provide heat for the heat-demanding user 7, and the outlet water of the heat-demanding user 7 enters the air source heat pump 6 to be heated again, forming a circulation loop ;
二级换热站32的出水经污水源热泵回水管网20回流至污水源热泵系统2，再经污水回水管网21回流至污水厂1中。The outlet water of the secondary heat exchange station 32 flows back to the sewage source heat pump system 2 through the sewage source heat pump return pipe network 20 , and then returns to the sewage plant 1 through the sewage return water pipe network 21 .
实施例1Example 1
夏季工况下，空气源热泵6关闭；In summer working conditions, the air source heat pump 6 is turned off;
经污水源热泵系统2提取污水厂1污水中冷量，将污水源热泵回水管网20中回水温度降低至5℃，经污水源热泵出水管网10传输至一级换热站31，冷却数据中心5的15℃出水，将其降温至10℃，数据中心制冷机房4的冷水机组作为备用冷源，在污水源热泵冷量不满足数据中心5的供冷需求时，数据中心制冷机房4的冷水机组作为辅助冷源为数据机房提供冷量；The cooling capacity of the sewage in the sewage plant 1 is extracted through the sewage source heat pump system 2, and the temperature of the return water in the sewage source heat pump return water pipe network 20 is reduced to 5°C. The 15°C outlet water of data center 5 is cooled to 10°C, and the chiller in data center refrigeration room 4 is used as a backup cold source. When the cooling capacity of the sewage source heat pump does not meet the cooling demand of data center 5, data center refrigeration room 4 The chiller is used as an auxiliary cooling source to provide cooling capacity for the data room;
5℃的冷水经一级换热站31换热后被加热至10℃，通过一级换热站出水管网13进入二级换热站32，与需冷用户制冷机房8的回水进行热交换，将15℃的回水温度预冷至13℃，降低需冷用户制冷机房8的能耗，不足冷量由制冷机房的冷水机组提供，为周边需冷用户7供冷，实现夏季污水中冷量的再次利用；经二级换热站32后的出水温度被加热至12℃，通过污水源热泵回水管网20回流至污水源热泵系统2。The cold water at 5°C is heated to 10°C after heat exchange by the primary heat exchange station 31, and enters the secondary heat exchange station 32 through the outlet pipe network 13 of the primary heat exchange station, and is heated with the return water of the cooling machine room 8 of the cooling user. Exchange, pre-cool the return water temperature of 15°C to 13°C, reduce the energy consumption of the refrigeration machine room 8 of the user who needs cooling, and the insufficient cooling capacity is provided by the chiller in the refrigeration machine room to provide cooling for the surrounding users 7 who need cooling, and realize the sewage in summer. Reuse of cooling capacity; the temperature of the outlet water after passing through the secondary heat exchange station 32 is heated to 12° C., and returns to the sewage source heat pump system 2 through the sewage source heat pump return water pipe network 20 .
冬季工况下，经污水源热泵系统2提取污水厂1污水中热量，将污水源热泵回水管网20中回水温度提高至47℃，经污水源热泵出水管网10直接传输至二级换热站32，加热用户回水管网15中40℃回水温度至45℃，通过用户进水管网19将热水提供给需热用户7，经二级换热站32后的出水温度被降低至42℃，通过污水源热泵回水管网20回流至污水源热泵系统2。In winter working conditions, the heat in the sewage of the sewage plant 1 is extracted through the sewage source heat pump system 2, the temperature of the return water in the sewage source heat pump return water pipe network 20 is raised to 47°C, and the heat is directly transmitted to the secondary heat exchanger through the sewage source heat pump outlet pipe network 10 The heat station 32 heats the return water temperature of 40°C in the user return water pipe network 15 to 45°C, and provides hot water to the heat-demanding user 7 through the user water inlet pipe network 19, and the outlet water temperature is lowered after passing through the secondary heat exchange station 32 to 42°C, and return to the sewage source heat pump system 2 through the sewage source heat pump return water pipe network 20 .
空气源热泵6回收数据中心5排出的35℃高温空气中热量，将40℃的采暖回水管网18中的回水加热至50℃，通过需热用户采暖供水管网17为需热用户7提供热量。The air source heat pump 6 recovers the heat in the 35°C high-temperature air discharged from the data center 5, heats the return water in the 40°C heating return water pipe network 18 to 50°C, and provides heat to the heat-demanding user 7 through the heating water supply pipe network 17 of the heat-demanding user. heat.
上述一种污水源热泵与数据中心复合清洁供冷供热系统及方法能够大规模梯级利用污水厂的冷、热量，不仅能够利用污水源热泵回收污水厂中污水的冷、热量，为数据中心及其附近需冷、热用户提供热、冷量，减少数据中心的能源消耗，还能回收数据中心产生的热量，为数据中心附近需热用户供热，减少或抵消污水厂的碳排放量，实现能量梯级利用和实现碳中和的效果。The above-mentioned combined clean cooling and heating system and method of sewage source heat pump and data center can use the cold and heat of the sewage plant in a large scale, not only can use the sewage source heat pump to recover the cold and heat of the sewage in the sewage plant, and provide data centers and It can provide heat and cold for users who need cooling and heating nearby, reduce the energy consumption of the data center, and can also recover the heat generated by the data center to provide heat for users near the data center that need heat, reduce or offset the carbon emissions of the sewage plant, and realize Energy cascade utilization and the effect of achieving carbon neutrality.
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