CN213747117U - Ground source heat pump composite energy efficiency utilization system and building comprising same - Google Patents
Ground source heat pump composite energy efficiency utilization system and building comprising same Download PDFInfo
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- CN213747117U CN213747117U CN202022881833.7U CN202022881833U CN213747117U CN 213747117 U CN213747117 U CN 213747117U CN 202022881833 U CN202022881833 U CN 202022881833U CN 213747117 U CN213747117 U CN 213747117U
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- 239000002131 composite material Substances 0.000 title claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 79
- 238000001816 cooling Methods 0.000 claims abstract description 33
- 238000010438 heat treatment Methods 0.000 abstract description 17
- 230000005855 radiation Effects 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000013486 operation strategy Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Abstract
The utility model discloses a ground source heat pump composite energy efficiency utilization system and a building comprising the same, which belongs to the building temperature regulation field, and comprises a controller, a temperature sensor connected with the controller, a ground source side circulating pump and a user side circulating water pump, and further comprises a ground source side branch water collector, a load side branch water collector, a ground source heat pump unit and a summer auxiliary cooling plate; a first summer and winter circulating pipeline is arranged between the ground source side circulating pump and the ground source side water collecting device; a second summer and winter circulating pipeline is arranged between the user side circulating water pump and the load side water collecting device; the first and second summer circulation pipelines exchange heat at the summer auxiliary cooling plate, and are provided with control valves; and the first and second winter seasons use the circulating pipeline to exchange heat at the ground source heat pump unit, and are provided with control valves. The utility model discloses terminal free cooling's of summer ground source heat pump list heating system form adopts the ground source heat pump as concentrated heat source winter, and this system is efficient, greatly reduced working costs when energy-concerving and environment-protective.
Description
Technical Field
The utility model relates to a building field of adjusting temperature especially relates to a compound efficiency of ground source heat pump utilizes system and reaches building including it.
Background
With the rapid development of economy in China, the requirements of people on the quality of life are higher and higher, and the concepts of energy conservation and environmental protection are stronger and stronger. The ground source heat pump system is a heat supply and air conditioning system which takes rock and soil mass, underground water or surface water as a low-temperature heat source and consists of a water source heat pump unit and a system in a building. Geothermal energy is taken as renewable energy, so that a large amount of operating cost can be saved, and the system does not discharge any waste gas, waste water and waste residue to the outside, thereby being an ideal 'green air conditioner'.
For cities with central heating requirements in winter and non-urgent cooling requirements in summer, if a ground source heat pump is adopted for central heating, the problem of unbalanced ground source field heat (the self-balancing capacity of the ground source field is relatively insufficient) can be caused, the temperature of the ground source field is greatly reduced after long-term use, the available heat energy in winter is reduced, and the heat load requirements of users cannot be continuously met.
The existing ground source heat pump system has the following common situations in residential projects:
1) the ground source heat pump is used as a centralized heat source, provides centralized heating for users in winter, does not provide centralized cooling in summer, has limited self-balancing capability of a ground source field, and has the problems of difficult heat balance of the ground source field after long-time operation and the like.
2) The ground source heat pump is used as a centralized heat source and a centralized cold source, is suitable for the centralized heating demand in winter and the centralized cooling demand in summer, and has little difference in demand. The residence is generally relatively high-end, the annual operating cost is relatively high, the indoor temperature in summer is controlled to be about 26 ℃, a user is difficult to control and adjust according to the self requirement, the control flexibility is relatively poor, and the cost collection is difficult to achieve due to the relatively high operating cost.
Therefore, the application of the existing ground source heat pump system in a common house has certain limitations, and particularly, the common house mainly requiring central heating and having relatively low cooling needs obviously has shortcomings and needs to be improved urgently.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a ground source heat pump is compound can utilizes system and includes its building to terminal free ground source heat pump single heating system form of cooling in summer makes it have wide application nature and rationality more in ordinary house project.
In order to solve the technical problem, the utility model provides a technical scheme as follows:
on one hand, the utility model provides a ground source heat pump is compound can utilizes system, including controller and the temperature-sensing ware, ground source side circulating pump and the user side circulating water pump that are connected with the controller, still include ground source side branch water collector, load side branch water collector, ground source heat pump set and the supplementary cooling board of summer trade;
a first summer circulation pipeline and a first winter circulation pipeline are arranged between the ground source side circulation pump and the ground source side water collecting device; a second summer circulation pipeline and a second winter circulation pipeline are arranged between the user side circulation water pump and the load side water collecting device;
the first summer circulation pipeline and the second summer circulation pipeline exchange heat at the summer auxiliary cooling plate, and cool the water of the second summer circulation pipeline; the first summer circulation pipeline is provided with control valves at two sides of the summer auxiliary cooling plate; the second summer circulation pipeline is also provided with control valves at two sides of the summer auxiliary cooling plate;
the first winter circulating pipeline exchanges heat with the second winter circulating pipeline at the ground source heat pump unit to heat water in the second winter circulating pipeline; the first winter circulating pipeline is provided with control valves on two sides of the ground source heat pump unit; the second winter circulating pipeline is also provided with control valves at two sides of the ground source heat pump unit;
the temperature sensor includes a sensor for measuring circulating water and outdoor temperature, and the controller controls frequency control of the ground-side circulating pump according to the measured temperature.
Further, the ground source heat pump unit comprises a condenser and an evaporator which are adjacently arranged, and the condenser is communicated with a second winter circulation pipeline; the evaporator is communicated with the first winter circulating pipeline.
Furthermore, the control valves are controlled by the controller to open and close.
Furthermore, the ground source side circulating pump and the user side circulating pump are both variable frequency pumps.
And further, the system also comprises all-building ceiling radiation coil pipes communicated with the user side water dividers.
Furthermore, the system also comprises a load side water collector connected with the user side circulating water pump and a ground source side water collector connected with the ground source side circulating pump.
In another aspect, a building is provided, and the ground source heat pump composite energy efficiency utilization system is included.
After adopting such design, the utility model discloses following advantage has at least:
(1) the utility model discloses terminal free cooling's of summer ground source heat pump list heating system form adopts the ground source heat pump as concentrated heat source winter, and this system is efficient, greatly reduced working costs when energy-concerving and environment-protective.
(2) The high-temperature cold water is intermittently provided for the tail end of the air conditioner after heat exchange through the ground source water in summer, free cold supply is provided for users in high-temperature weather, indoor fresh air does not need to be processed through temperature control logic, the dewing problem can be avoided, the indoor temperature is higher than the conventional cold supply design temperature, and the energy consumption of the building outer enclosure structure can be effectively reduced. The problem of unbalanced heat caused by heating of a ground source field only in winter is solved through ground source water heat exchange in summer, geothermal resources are reasonably utilized, and sustainable development and utilization are achieved. The utility model discloses the system air conditioner end is ceiling coil pipe, and the air conditioner is terminal the same in winter and summer, need not to add the air conditioner end alone for free cooling in summer, practices thrift the cost. The utility model discloses but system summer autonomous system changes according to outdoor weather parameter automatic control board and inclines, the secondary side supplies water and opens the water supply temperature who stops and the secondary side, prevents that terminal dewfall risk from taking place, and system safety and stability, easy operation is convenient.
(3) Compared with the annual centralized continuous cooling, the system has the advantages that the host is not required to be started for free cooling in summer, the power consumption of the water pump and other accessories is low, the running cost is very low, the influence on the charging of the energy cost of the heating system is small and negligible, and the user acceptance degree is higher.
Drawings
The foregoing is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clear, the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Fig. 1 is a schematic connection diagram of each part of an embodiment of the ground source heat pump composite energy efficiency utilization system of the present invention;
fig. 2 is the schematic diagram of the ground source heat pump composite energy efficiency utilization system for cooling operation.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The utility model provides a ground source heat pump composite energy efficiency utilization system, as shown in fig. 1 and fig. 2, comprising a controller 10, temperature sensors 9 and 11 connected with the controller 10, a ground source side circulating pump 6, a user side circulating water pump 1, a ground source side branch water collector 7, a load side branch water collector 3, a ground source heat pump unit 5 and a summer auxiliary cooling plate exchanger 4; a first summer circulation pipeline and a first winter circulation pipeline are arranged between the ground source side circulation pump 6 and the ground source side water collecting device 7; a second summer circulation pipeline and a second winter circulation pipeline are arranged between the user side circulation water pump 1 and the load side water collecting device 3; the first summer circulation pipeline and the second summer circulation pipeline exchange heat at the summer auxiliary cooling plate, and the second summer circulation pipeline is cooled by water; the first summer circulation pipeline is provided with control valves V7 and V8 at two sides of the summer auxiliary cooling plate; the second summer circulation pipeline is also provided with control valves V1 and V2 at two sides of the summer auxiliary cooling plate; the first winter circulating pipeline exchanges heat with the second winter circulating pipeline at the ground source heat pump unit to heat the water of the second winter circulating pipeline; the first winter circulating pipeline is provided with control valves V5 and V6 on two sides of the ground source heat pump unit; the second winter circulating pipeline is also provided with control valves V3 and V4 at two sides of the ground source heat pump unit; the temperature sensor comprises a sensor 9 for measuring circulating water and a sensor 11 for measuring outdoor temperature, and the controller 10 controls the frequency control of the ground source side circulating pump 6 according to the measured temperature.
The utility model discloses a terminal free cooling's of summer ground source heat pump list heating system form, including the free supplementary cooling system of winter central heating system and summer and corresponding system control logic.
The utility model discloses mainly solve when utilizing the ground source heat the problem that the ground source field is difficult to realize heat balance, both energy-concerving and environment-protective, can solve the problem that the ground source field heat balance out of control that simple heating system leads to again.
Further, the ground source heat pump unit 5 comprises a condenser and an evaporator which are adjacently arranged, and the condenser is communicated with the second winter circulation pipeline; the evaporator is communicated with the first winter circulating pipeline.
Furthermore, the control valves are controlled by the controller to open and close.
Furthermore, the ground source side circulating pump and the user side circulating pump are both variable frequency pumps.
Furthermore, the system also comprises all the building ceiling radiation coil pipes communicated with the user side water dividers.
Further, the water collector system also comprises a load side water collector 2 connected with the user side circulating water pump 1 and a ground source side water collector 8 connected with the ground source side circulating pump 6.
In another aspect, a building is provided, which comprises the ground source heat pump composite energy efficiency utilization system.
The utility model provides a terminal free cooling's of summer ground source heat pump list heating system form, including ground source heat pump heating system, free supplementary cooling system in summer, ceiling coil pipe air conditioner end system and corresponding operation strategy mode.
Furthermore, a ground source heat pump is selected as a centralized heat source in winter to provide low-temperature hot water for the ceiling coil pipe at the tail end of the air conditioner, high-temperature cold water obtained after heat exchange of the ground source water through the plate heat exchanger in summer provides a cold source for the ceiling coil pipe at the tail end of the air conditioner, free cold supply is performed according to outdoor meteorological parameters for intermittent cold supply, the risk of condensation is avoided, soil heat storage is realized, and the problem of heat balance of a ground source field is solved.
An embodiment of the present invention may be: the system mainly comprises a water pump 1, a user side circulating water pump, a load side water collector, a summer auxiliary cooling plate exchange device, a ground source heat pump unit 5, a ground source side circulating water pump 6, a ground source side water collector 7, a ground source side water collector 8, a temperature sensor 9, a programmable logic controller 10, an electric control valve 11, a summer switch valve V1, a V2, a V7, a V8, a winter switch valve V3, a V4, a V5, a V6 and the like, wherein the system is divided into the following two modes all the year around:
1) winter central heating mode
Opening valves V3, V4, V5 and V6; valves V1, V2, V7, V8 were closed.
The temperature of the supply and return water on the ground source side is 5/10 ℃, cold water with the temperature of 5 ℃ is conveyed to an evaporator of a ground source heat pump 5 through a ground source side circulating pump 6, the condenser obtains low-temperature hot water with the temperature of 35 ℃ after the ground source heat pump 5 works, then the low-temperature hot water is conveyed to a load side water collector 3 through a user side circulating water pump 1, and finally the low-temperature hot water is conveyed to a ceiling radiation coil pipe of each building; the ceiling radiation coil on the user side bears the heat load on the user side, then the temperature is reduced to 30 ℃, and the ceiling radiation coil returns to the load side water collector 2, so that the reciprocating operation is carried out, and the heating is realized for the user.
2) Summer centralized free cooling mode
Opening valves V1, V2, V7 and V8; valves V3, V4, V5, V6 were closed.
Cold water on the ground source side is directly sent to the summer auxiliary cooling plate for heat exchange 4 through a ground source side circulating pump 6, high-temperature cold water obtained after heat exchange is sent to the load side water collector 3 through a user side circulating water pump 1, and finally is sent to the ceiling radiation coil pipes of all buildings; the ceiling radiation coil pipe at the user side bears partial cold load at the user side, then the temperature is raised, and the ceiling radiation coil pipe returns to the water collector 2 at the load side, so that the intermittent cold supply for the user is realized.
The temperature sensor 9 tests the secondary water supply temperature, 12 is an outdoor temperature and humidity sensor, and tests the outdoor temperature and humidity, and the specific control logic refers to the following figure 2:
1) automatically judging the starting time and the ending time of free cooling:
starting time: and when the outdoor average temperature exceeds 22 ℃ for 5 continuous days, the free cold supply automatically enters a starting mode and is controlled to start and stop according to the outdoor dew point temperature, when the outdoor dew point temperature is above 24 ℃, the free cold supply is performed, and when the outdoor dew point temperature is below 23 ℃, the free cold supply is performed continuously.
And ending the time, wherein the outdoor average temperature is lower than 22 ℃ for 5 consecutive days, and the outdoor average temperature is free to be supplied with cold to enter a closing mode.
2) Controlling the temperature of the end water supply
When the free cold running is performed, the outdoor dew point temperature is automatically calculated according to the outdoor temperature and the outdoor humidity, the programmable logic controller 10 controls the frequency of the ground source side circulating variable frequency pump 6 to control the terminal water supply temperature to be always higher than the dew point temperature by 2 ℃, so that the energy is saved, and the condensation risk is avoided.
The specific adjustment step length can be determined according to the local dew point temperature characteristics, and can be generally set according to 15-minute step length.
4) Energy saving control
And when the COP of the system is less than 4, the free cold supply is automatically stopped for 4 hours, so that the running cost is saved.
5) Timing function
The system has a timing function, and can set a free cold running time period according to project requirements.
The above description is only for the preferred embodiment of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make various modifications, equivalent changes and modifications using the above-described technical content, all of which fall within the scope of the present invention.
Claims (7)
1. The ground source heat pump composite energy efficiency utilization system is characterized by comprising a controller, a temperature sensor, a ground source side circulating pump, a user side circulating pump, a ground source side branch water collector, a load side branch water collector, a ground source heat pump unit and a summer auxiliary cooling plate exchanger, wherein the temperature sensor, the ground source side circulating pump and the user side circulating pump are connected with the controller;
a first summer circulation pipeline and a first winter circulation pipeline are arranged between the ground source side circulation pump and the ground source side water collecting device; a second summer circulation pipeline and a second winter circulation pipeline are arranged between the user side circulation water pump and the load side water collecting device;
the first summer circulation pipeline and the second summer circulation pipeline exchange heat at the summer auxiliary cooling plate, and cool the water of the second summer circulation pipeline; the first summer circulation pipeline is provided with control valves at two sides of the summer auxiliary cooling plate; the second summer circulation pipeline is also provided with control valves at two sides of the summer auxiliary cooling plate;
the first winter circulating pipeline exchanges heat with the second winter circulating pipeline at the ground source heat pump unit to heat water in the second winter circulating pipeline; the first winter circulating pipeline is provided with control valves on two sides of the ground source heat pump unit; the second winter circulating pipeline is also provided with control valves at two sides of the ground source heat pump unit;
the temperature sensor includes a sensor for measuring circulating water and outdoor temperature, and the controller controls frequency control of the ground-side circulating pump according to the measured temperature.
2. The ground source heat pump composite energy efficiency utilization system according to claim 1, characterized in that the ground source heat pump unit comprises a condenser and an evaporator which are adjacently arranged, wherein the condenser is communicated with a second winter cycle pipeline; the evaporator is communicated with the first winter circulating pipeline.
3. The ground source heat pump combined energy efficiency utilization system according to claim 1, wherein the switches of the control valves are controlled by a controller.
4. The ground source heat pump composite energy efficiency utilization system according to claim 1, characterized in that the ground source side circulating pump and the user side circulating water pump are both variable frequency pumps.
5. The ground source heat pump composite energy efficiency utilization system according to claim 1, further comprising ceiling radiant coils of each building communicated with the user side water separator.
6. The ground source heat pump composite energy efficiency utilization system according to any one of claims 1 to 5, characterized by further comprising a load side water collector connected with the user side circulating water pump and a ground source side water collector connected with the ground source side circulating pump.
7. A building comprising the ground source heat pump composite energy efficiency utilization system of any one of claims 1 to 6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022881833.7U CN213747117U (en) | 2020-12-04 | 2020-12-04 | Ground source heat pump composite energy efficiency utilization system and building comprising same |
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| CN202022881833.7U CN213747117U (en) | 2020-12-04 | 2020-12-04 | Ground source heat pump composite energy efficiency utilization system and building comprising same |
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| CN213747117U true CN213747117U (en) | 2021-07-20 |
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| CN202022881833.7U Active CN213747117U (en) | 2020-12-04 | 2020-12-04 | Ground source heat pump composite energy efficiency utilization system and building comprising same |
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Effective date of registration: 20220425 Address after: 230000 room 103, Shangshang, building 10, hongwanjiayuan, Jinggang Town, Shushan District, Hefei City, Anhui Province Patentee after: Anhui MoMA human settlements Technology Co.,Ltd. Address before: No.7 Yuanying Road, Zhaofeng industrial base, zhaoquanying Town, Shunyi District, Beijing Patentee before: AIR DINO ENVIRONMENTAL SCIENCE AND TECHNOLOGY (BEIJING) CO.,LTD. |