CN205037498U - Earth source heat pump and cooling tower series connection combined -type air conditioning's automatic control system - Google Patents
Earth source heat pump and cooling tower series connection combined -type air conditioning's automatic control system Download PDFInfo
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- CN205037498U CN205037498U CN201520743843.0U CN201520743843U CN205037498U CN 205037498 U CN205037498 U CN 205037498U CN 201520743843 U CN201520743843 U CN 201520743843U CN 205037498 U CN205037498 U CN 205037498U
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Abstract
The utility model relates to an earth source heat pump and cooling tower series connection combined -type air conditioning's automatic control system, combined -type air conditioning including ground source heat pump set, pipe laying and air conditioner terminal, ground source heat pump set includes first~fourth interface, ground source heat pump set first interface with the terminal one end of air conditioner links to each other, the terminal other end of air conditioner with ground source heat pump set's second interface links to each other, automatic control system includes control box, temperature transmitter, electronic three -way control valve, closed cooling tower, cooling tower circulating pump and ground pipe laying circulating pump, the control box respectively with electronic three -way control valve, closed cooling tower, cooling tower circulating pump and temperature transmitter electricity are connected. The utility model discloses with ground pipe laying leaving water temperature as control parameter, with earth source heat pump and cooling tower series operation, compare traditional ground source heat pump air condition, more accurate, high -efficient, be favorable to the operation steady in a long -term of earth source heat pump more.
Description
Technical field
The utility model relates to the automatic control system of a kind of earth source heat pump and cooling tower series hybrid air-conditioning, belongs to HV&AC engineering technical field.
Background technology
In the design and application of buried pipe ground-source heat pump system, the thermal balance question of soil obtains the attention of people gradually.For China, when buried pipe ground-source heat pump system winter summer dual-purpose, in southern area, building cooling load is greater than thermic load, so the heat that system enters soil summer is larger than the heat taken out from soil winter, so will cause the imbalance of soil gain and loss heat.So long-term, the heat transfer effect of underground pipe and soil can be caused worse and worse, the energy-conservation superiority of closed-loop ground source heat pump cannot be played, even likely more consume energy.Combined type closed-loop ground source heat pump nowadays solves soil heat balance problem Be very effective, application method more widely.Namely combined type closed-loop ground source heat pump is combined closed-loop ground source heat pump with heating (heat radiation) equipment of other form, make up defect when to be used alone earth source heat pump in certain areas, effectively can improve the cycle performance of earth-source hot-pump system, reduce pipe embedded well quantity, be conducive to balancing annual heat exhaust and caloric receptivity, reduce the heat localization of underground, the performance making it superior is well played.As south China because of summer refrigeration duty higher than thermic load in winter, often adopt earth source heat pump to add the hybrid systems of cooling tower, and tandem is relatively simple for structure comparatively speaking, is easy to control, system cloud gray model is more stable.
Utility model content
The purpose of this utility model, exactly in order to solve above-mentioned prior art Problems existing, and the automatic control system of a kind of earth source heat pump and cooling tower series hybrid air-conditioning is provided, be specially adapted to summer refrigeration duty apparently higher than the geothermal heat pump air-conditioning system of thermic load in winter, closed cooling tower and geothermal heat pump air-conditioner series operation, the start and stop of using rational control mode to carry out controlled cooling model tower run, and ensure that underground pipe leaving water temperature is at zone of reasonableness, invariably the Soil Thermal of pipe laying system piles up problem.
The technical scheme realizing above-mentioned purpose is: the automatic control system of a kind of earth source heat pump and cooling tower series hybrid air-conditioning, described combined air-conditioner comprises earth source heat pump unit, underground pipe and air conditioning terminal, described earth source heat pump unit comprises the first ~ four interface, the first interface of described earth source heat pump unit is connected with one end of described air conditioning terminal, the other end of described air conditioning terminal is connected with the second interface of described earth source heat pump unit, described automatic control system comprises control cabinet, temperature transmitter, electric three-way regulating valves, closed cooling tower, cooling tower circulating pump and underground pipe circulating pump, wherein:
The first end of described electric three-way regulating valves is connected with the 3rd interface of described earth source heat pump unit;
Second end of described electric three-way regulating valves, cooling tower circulating pump, closed cooling tower are connected successively with the 3rd end of electric three-way regulating valves;
Described electric three-way regulating valves is connected with the import of described underground pipe with the end that connects of cooling tower circulating pump;
The outlet of described underground pipe is connected with the 4th interface of described earth source heat pump unit by described underground pipe circulating pump;
Described temperature transmitter is arranged on described underground pipe circulating pump and holds the connecting of the 4th interface of described earth source heat pump unit;
Described control cabinet is electrically connected with described electric three-way regulating valves, closed cooling tower, cooling tower circulating pump and temperature transmitter respectively.
The automatic control system of above-mentioned a kind of earth source heat pump and cooling tower series hybrid air-conditioning, wherein, is disposed with the first Pressure gauge and circulating pump between the first interface of described earth source heat pump unit and described air conditioning terminal;
The second Pressure gauge, first-class gauge and the first y-type filter is disposed with between second interface of described earth source heat pump unit and described air conditioning terminal;
The 3rd Pressure gauge is provided with between 3rd interface of described earth source heat pump unit and described electric three-way regulating valves;
The 4th Pressure gauge, second gauge and the second y-type filter is disposed with between 4th interface of described earth source heat pump unit and described temperature transmitter.
The automatic control system of earth source heat pump of the present utility model and cooling tower series hybrid air-conditioning, beneficial effect is compared with prior art embodied in:
(1) automatic control system of the present utility model accurately controls the start and stop operation of the cooling tower of connecting by underground pipe leaving water temperature, ensure that earth-source hot-pump system is in efficient operation always, invariably pipe laying system produces hot stack phenomenon, ensures again the stable operation of a whole set of multi-air condition system simultaneously;
(2) whole system is all automatically run and is switched, and reduces cost of labor, guarantees the operation that system is more efficient and stable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the automatic control system of earth source heat pump of the present utility model and cooling tower series hybrid air-conditioning.
Detailed description of the invention
In order to make those skilled in the art can understand the technical solution of the utility model better, below in conjunction with accompanying drawing, the utility model is described in further detail.
Refer to Fig. 1, embodiment of the present utility model, earth source heat pump and cooling tower series hybrid air-conditioning comprise earth source heat pump unit 101, underground pipe 102 and air conditioning terminal 103, described earth source heat pump unit 101 comprises the first ~ four interface a, b, c, d, the first interface a of earth source heat pump unit 101 is connected with one end of air conditioning terminal 103, and the other end of air conditioning terminal 103 is connected with the second interface b of earth source heat pump unit 101.
An automatic control system for earth source heat pump and cooling tower series hybrid air-conditioning, comprises control cabinet 5, temperature transmitter 1, electric three-way regulating valves 2, closed cooling tower 3, cooling tower circulating pump 4 and underground pipe circulating pump 6.
The first end e of electric three-way regulating valves 2 is connected with the 3rd interface c of earth source heat pump unit 101; Second end f of electric three-way regulating valves 2, cooling tower circulating pump 4, closed cooling tower 3 are connected successively with the 3rd end g of electric three-way regulating valves 2; Electric three-way regulating valves 2 is connected with the import of underground pipe 102 with the end that connects of cooling tower circulating pump 4; The outlet of underground pipe 102 is connected with the 4th interface d of earth source heat pump unit 101 by underground pipe circulating pump 6; Temperature transmitter 1 is arranged on underground pipe circulating pump 6 and holds the connecting of the 4th interface d of earth source heat pump unit 101; Control cabinet 5 is electrically connected with electric three-way regulating valves 2, closed cooling tower 3, cooling tower circulating pump 4 and temperature transmitter 1 respectively.
The first Pressure gauge 71 and circulating pump 10 is disposed with between the first interface a of earth source heat pump unit 101 and air conditioning terminal 103; The second Pressure gauge 72, first-class gauge 81 and the first y-type filter 91 is disposed with between second interface b of earth source heat pump unit 101 and air conditioning terminal 103; The 3rd Pressure gauge 73 is provided with between 3rd interface c of earth source heat pump unit 101 and electric three-way regulating valves 2; The 4th Pressure gauge 74, second gauge 82 and the second y-type filter 92 is disposed with between 4th interface d of earth source heat pump unit 101 and temperature transmitter 1.
The automatic control system of earth source heat pump of the present utility model and cooling tower series hybrid air-conditioning, has following characteristics:
(1) whole system is using underground pipe 102 leaving water temperature as controling parameters, sets minimum and most ceiling value;
(2) cooling tower is connected with the mode of earth source heat pump unit 101 by series connection, and underground pipe 102 system is run always, and cooling tower is by robot control system(RCS) switchover operation;
(3) cooling tower adopted is closed cooling tower 3, ensures that combined-type ground source heat pump is in closed cycle.
(4) when electric T-shaped valve 2 is in the first state, the first end e of electric T-shaped valve 2 is communicated with the second end f, and closed cooling tower 3 is in by bypass state, does not participate in multi-air condition system and runs; When electric T-shaped valve 2 is in the second state, the first end e of electric T-shaped valve 2 is communicated with the 3rd end d, and cooling tower is in access multi-air condition system state, participates in multi-air condition system and runs.
The automatic control system of earth source heat pump of the present utility model and cooling tower series hybrid air-conditioning, operation principle is: before a whole set of multi-air condition system runs, control system acquiescence electric T-shaped valve 2 is in the first state, by closed cooling tower 3 bypass, does not participate in system cloud gray model.After a whole set of air-conditioning system is run, control cabinet 5 detects voluntarily, judge that underground pipe 102 leaving water temperature data that temperature transmitter 1 transmits are to implement control strategy:
When underground pipe 102 leaving water temperature is higher than its maximum water temperature setting value, explanatorily pipe laying 102 heat-exchange system exchange capability of heat is close to saturated, and longtime running goes down to cause the heat exchange efficiency of system to decline further.Now, electric T-shaped valve 2 control signal given by control cabinet 5, makes it be switched to the second state, time delay 20s, opens cooling tower circulating pump 4, starts closed cooling tower 3, now cooling tower 3 and underground pipe 102 Cascade System simultaneously;
When underground pipe 102 leaving water temperature is lower than its minimum water outlet temperature setting value, closed cooling tower 3 control signal given by control cabinet 5, close closed cooling tower 3, close cooling tower circulating pump 4 simultaneously, time delay 20s, control electric T-shaped valve 2, make it switch back the first state, now closed cooling tower 3 does not participate in multi-air condition system operation.
In sum, the automatic control system of earth source heat pump of the present utility model and cooling tower series hybrid air-conditioning, is specially adapted to summer refrigeration duty apparently higher than the geothermal heat pump air-conditioning system of thermic load in winter.Closed cooling tower 3 is connected with the mode of earth source heat pump unit 101 by series connection, underground pipe 102 system is run always, closed cooling tower 3 is by robot control system(RCS) switchover operation, whole automatic control system accurately controls the cooling tower of connecting start and stop by underground pipe leaving water temperature run, ensure that earth-source hot-pump system is in efficient operation always, invariably pipe laying system produces hot stack phenomenon, ensures again the stable operation of a whole set of multi-air condition system simultaneously; Whole system is all automatically run and is switched, and reduces cost of labor, guarantees the operation that system is more efficient and stable.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, when not departing from spirit and scope of the present utility model, various conversion or modification can also be made, therefore all equivalent technical schemes also should belong to category of the present utility model, should be limited by each claim.
Claims (2)
1. the automatic control system of an earth source heat pump and cooling tower series hybrid air-conditioning, described combined air-conditioner comprises earth source heat pump unit, underground pipe and air conditioning terminal, described earth source heat pump unit comprises the first ~ four interface, the first interface of described earth source heat pump unit is connected with one end of described air conditioning terminal, the other end of described air conditioning terminal is connected with the second interface of described earth source heat pump unit, it is characterized in that, described automatic control system comprises control cabinet, temperature transmitter, electric three-way regulating valves, closed cooling tower, cooling tower circulating pump and underground pipe circulating pump, wherein:
The first end of described electric three-way regulating valves is connected with the 3rd interface of described earth source heat pump unit;
Second end of described electric three-way regulating valves, cooling tower circulating pump, closed cooling tower are connected successively with the 3rd end of electric three-way regulating valves;
Described electric three-way regulating valves is connected with the import of described underground pipe with the end that connects of cooling tower circulating pump;
The outlet of described underground pipe is connected with the 4th interface of described earth source heat pump unit by described underground pipe circulating pump;
Described temperature transmitter is arranged on described underground pipe circulating pump and holds the connecting of the 4th interface of described earth source heat pump unit;
Described control cabinet is electrically connected with described electric three-way regulating valves, closed cooling tower, cooling tower circulating pump and temperature transmitter respectively.
2. the automatic control system of a kind of earth source heat pump according to claim 1 and cooling tower series hybrid air-conditioning, is characterized in that, is disposed with the first Pressure gauge and circulating pump between the first interface of described earth source heat pump unit and described air conditioning terminal;
The second Pressure gauge, first-class gauge and the first y-type filter is disposed with between second interface of described earth source heat pump unit and described air conditioning terminal;
The 3rd Pressure gauge is provided with between 3rd interface of described earth source heat pump unit and described electric three-way regulating valves;
The 4th Pressure gauge, second gauge and the second y-type filter is disposed with between 4th interface of described earth source heat pump unit and described temperature transmitter.
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| CN201520743843.0U CN205037498U (en) | 2015-09-24 | 2015-09-24 | Earth source heat pump and cooling tower series connection combined -type air conditioning's automatic control system |
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| CN201520743843.0U CN205037498U (en) | 2015-09-24 | 2015-09-24 | Earth source heat pump and cooling tower series connection combined -type air conditioning's automatic control system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157179A (en) * | 2015-09-24 | 2015-12-16 | 宝莲华新能源技术（上海）有限公司 | Automatic control system of ground source heat pump and cooling tower series connection combined type air conditioner |
| CN105932933A (en) * | 2016-02-24 | 2016-09-07 | 孙啸 | Solar power generation apparatus |
-
2015
- 2015-09-24 CN CN201520743843.0U patent/CN205037498U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105157179A (en) * | 2015-09-24 | 2015-12-16 | 宝莲华新能源技术（上海）有限公司 | Automatic control system of ground source heat pump and cooling tower series connection combined type air conditioner |
| CN105932933A (en) * | 2016-02-24 | 2016-09-07 | 孙啸 | Solar power generation apparatus |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 200000 Shanghai City, Pudong New Area Chinese (Shanghai) free trade zone fanchun Road No. 400 Building 1 layer 3 Patentee after: The new energy technology (Shanghai) Limited by Share Ltd Address before: 200233, room 3, building 99, 201 Chiang Jiang Road, Shanghai, Xuhui District Patentee before: Baolianhua New Energy Technology (Shanghai) Co., Ltd. |
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| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200312 Address after: 201900 No. 855, Yangtai Road, Baoshan District, Shanghai Patentee after: Shanghai No.1 Refrigerator Factory Co., Ltd Address before: 200000 Shanghai City, Pudong New Area Chinese (Shanghai) free trade zone fanchun Road No. 400 Building 1 layer 3 Patentee before: The new energy technology (Shanghai) Limited by Share Ltd |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220617 Address after: 8816 Songze Avenue, Qingpu District, Shanghai, 201707 Patentee after: SHANGHAI GENERAL FUSHI COLD MACHINE CO.,LTD. Address before: 855 Yangtai Road, Baoshan District, Shanghai, 201900 Patentee before: Shanghai No.1 Refrigerator Factory Co.,Ltd. |
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| TR01 | Transfer of patent right |