CN201028889Y - Multi-component closed-circuit soil source water-water heat pump system - Google Patents
Multi-component closed-circuit soil source water-water heat pump system Download PDFInfo
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- CN201028889Y CN201028889Y CNU2007200632717U CN200720063271U CN201028889Y CN 201028889 Y CN201028889 Y CN 201028889Y CN U2007200632717 U CNU2007200632717 U CN U2007200632717U CN 200720063271 U CN200720063271 U CN 200720063271U CN 201028889 Y CN201028889 Y CN 201028889Y
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Abstract
The utility model discloses a water-water heat pump system of multivariate closed soil source. The source side outlet of a water-water heat pump(7) is connected with a first circulating water pump(6); the water-water heat pump(7) is serially connected with a first valve(8), an underground coupling heat exchanger, and a second valve(9) to form a first source side loop through the first circulating water pump(6); the water-water heat pump(7) is serially connected with a third valve(4), a heat exchanger(3) and a fourth valve(5) to form a second source side loop through the first circulating water pump(6); the front of the second valve(9) is connected with the third valve(4) and the rear is connected with a fifth valve(10); the front of the fourth valve(5) is connected with the first valve(8) and the rear is connected with a sixth valve(12). The utility model is a water-water heat pump system of multivariate closed soil source, which is suitable for the project that the load of the air conditioner of the area hot in summer and cold in winter in summer is bigger than that of the heating load in winter, can greatly reduce the initial investment of the similar project and improve the energy resource efficiency and the reliability of the system.
Description
Technical field
The utility model relates to a kind of heat pump, particularly relates to a kind of multiple closed loop soil-derived water-water heat pump system of being made up of cooling tower and closed circuit underground coupled heat exchanger.
Background technology
Pure soil source heat pump system is with the heat pump of underground as thermal source or heat remittance, is used in the heating air conditioning engineering more.In order to make full use of heat in the underground structure, according to the heating load under certain not fraction (maximum caloric receptivity), or the load of the cooling under certain not fraction (maximum heat exhaust) descends the size of coupled heat exchanger definitely, make the subterranean heat exchanger of design enough big, the cost height of subterranean heat exchanger causes whole heat pump cost height in addition.It is main cold district (as the Northeast of China) and cooling and heating load winter cool area of cold summer (as the North China of China) in a basic balance that such system only is fit in order to heating.It is very favorable as heating system that pure soil source heat pump is used in these areas.Though with maximum caloric receptivity design ground heat exchanger, system's initial outlay height, can make full use of the heat of underground winter, improves the efficiency of energy utilization of system, reaches purpose of energy saving; Enter the anthropogenic heat amount underground summer, unlikely generation thermal pollution (urban heat land effect).
For Xia Redong cryogenic region (as the area, the Yangtze river basin of China), the heat exhaust of summer air-conditioning is more much bigger than the required caloric receptivity of winter heating.If by summer heat exhaust design subterranean heat exchanger, system's initial cost is obviously too high, caloric receptivity and system effectiveness when heating heats in the winter time to the assurance system have too big surplus; And,, may make underground coupling heat exchanger return water temperature too high and reduce refrigerating efficiency, the refrigerating capacity and the reliability of reduction system because the summer operation time is long in summer during to the soil heat extraction.
The utility model content
Technical problem to be solved in the utility model provides in the engineering of a kind of Xia Redong of being suitable for cryogenic region summer air conditioning load greater than the winter heating load, can significantly reduce the initial cost of heat pump in this class engineering, improve the multiple closed loop soil-derived water-water heat pump system of system's energy efficiency and reliability.
In order to solve the problems of the technologies described above, the multiple closed loop soil-derived water-water heat pump system that the utility model provides, comprise water-water heat pump, the source outlet of described water-water heat pump is connected with first water circulating pump, described water-water heat pump is by described first water circulating pump and first valve, underground coupled heat exchanger, second valve is composed in series the first source loop, described water-water heat pump is by described first water circulating pump and the 3rd valve, heat exchanger, the 4th valve is composed in series the second source loop, and another heat-exchange end of described heat exchanger is connected with cooling tower by second water circulating pump; Be connected with the 5th valve before described second valve with behind described the 3rd valve, be connected with the 6th valve before described the 4th valve with behind described first valve.
Underground coupled heat exchanger in the described first source loop is vertical U-type coupled heat exchanger or horizontal coupled heat exchanger.
Described heat exchanger is a plate type heat exchanger.
Adopt the multiple closed loop soil-derived water-water heat pump system of technique scheme, underground coupled heat exchanger in the underground source heat exchanger loop is the vertical U-type heat exchanger or flatly descends coupled heat exchanger, underground coupled heat exchanger capacity according to heating not the required caloric receptivity of maximum heating load under the fraction determine required caloric receptivity and reliability service during with abundant assurance winter heating.The capacity of plate type heat exchanger and cooling tower according to air-conditioning not under the fraction during maximum summer air conditioning load the difference of required heat exhaust and the underground coupled heat exchanger heat exhaust when the summer heat extraction determine.Because cooling tower when work, recirculated water directly contacts with outside air, is polluted easily, therefore adopts plate type heat exchanger that the recirculated water of cooling tower is isolated with heat pump source recirculated water, and the whole loop of assurance heat pump source is sealed, prolongation system service life.By first valve, second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve is motor-driven valve or the magnetic valve (system is an automatic control mode) or first valve, second valve, the 3rd valve, the 4th valve, the 5th valve, the 6th valve is that the combination of ball valve (system is a manual control mode) is opened and closed, make heat pump that two kinds of operating mode (winter heating operating modes be arranged, it is heating condition, with the summer air-conditioning operating mode, be cooling condition) and six kinds of mode of operations, i.e. two loops work independently (recirculated water is only by plate type heat exchanger or underground coupled heat exchanger), parallel operation (recirculated water is simultaneously by plate type heat exchanger and ground heat exchanger) or tandem working (series model 1, recirculated water flows through underground coupled heat exchanger earlier and flows through plate type heat exchanger again; Series model 2. recirculated waters flow through plate type heat exchanger earlier and flow through underground coupled heat exchanger again) pattern; The heat extraction mode of operation (summer underground coupled heat exchanger return water temperature when higher, during heat pump is out of service, open cooling tower and heat pump cycle water pump, discharge soil with cooling tower to air and store heat).
Characteristics of the present utility model: 1, native system is applicable to based on air-conditioning, and the heat exhaust under its air conditioning condition is greater than the area or the building of the caloric receptivity under the heat supply operating mode, as the building of Xia Redong cryogenic region.2, because the cooling tower+plate type heat exchanger of same row heat is more much lower than the cost of underground coupled heat exchanger, the initial outlay of this patent system equipment is more much lower than pure underground coupling earth-source hot-pump system.3, heat pump during heating, can make full use of the heat of underground in the winter time, has the higher coefficient of performance, cuts down the consumption of energy.4, heat pump is when summer cooling, utilize underground coupled heat exchanger that anthropogenic heat is entered in the soil, can make full use of the low characteristic of the soil moisture and improve refrigerating efficiency, energy efficient, reduce heat exhaust (reducing thermal pollution) again, improve building climatic environment on every side to atmosphere.When leaving water temperature big when air conditioner load, underground coupled heat exchanger is higher, open cooling tower, reduce return water temperature, improve this cold efficiency, energy efficient, system reliability height.5, system both can manually control, and can control automatically again, controlled simple.6, the system works pattern is many, is convenient to optimize the system operation to improve the energy efficiency of system, reaches energy-conservation purpose.
In sum, the utility model is in the engineering of a kind of Xia Redong of being suitable for cryogenic region summer air conditioning load greater than the winter heating load, can significantly reduce the initial cost of heat pump in this class engineering, improve the multiple closed loop soil-derived water-water heat pump system of system's energy efficiency and reliability.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing 1 and the specific embodiment.
Accompanying drawing 1 is the utility model structural representation.
The specific embodiment
Referring to accompanying drawing 1, the source outlet of water-water heat pump 7 is connected with first water circulating pump 6, water-water heat pump 7 is by first water circulating pump 6 and first valve 8, underground coupled heat exchanger 13, second valve 9 is composed in series the first source loop, flatly descend coupled heat exchanger 13 outlets to be provided with temperature sensor 11, water-water heat pump 7 is by first water circulating pump 6, the 3rd valve 4, plate type heat exchanger 3, the 4th valve 5 is composed in series the second source loop, another heat-exchange end of plate type heat exchanger 3 is connected with cooling tower 16 by second water circulating pump 2, the shunting of cooling tower 16 inlet tubes is provided with the 7th draining ball valve 1, the shunting of cooling tower 16 outlets is provided with the 8th draining with ball valve 15, is provided with excretion machine 14 between cooling tower 16 outlets and the plate type heat exchanger 3; Be connected with before the 5th valve 10, the four valves 5 with behind first valve 8 and be connected with the 6th valve 12 before second valve 9 with behind the 3rd valve 4.
Underground coupled heat exchanger in the first source loop can also be vertical U-type coupled heat exchanger or horizontal coupled heat exchanger.
Referring to Fig. 1, multiple closed loop soil-derived water-water heat pump system of the present utility model is designed to winter heating and two kinds of operating modes of summer air-conditioning.
When being in the winter heating operating mode, because therefore underground coupled heat exchanger 13, closes the 3rd valve 4, the 4th valve 5, the 5th valve 10 and the 6th valve 12 and second water circulating pump 2 and cooling tower 16 blower fans by the maximum caloric receptivity design of system.Only open first water circulating pump, 6, the first valves 8 and second valve 9, heat pump is in underground coupled heat exchanger 13 pattern that works independently, and to guarantee heat pump best heating efficiency is arranged.
When being in the summer air-conditioning operating mode, in order to reduce system energy consumption, avoid thermal pollution, should preferentially adopt the coupled heat exchanger pattern that works independently of flatly descending.At this moment, close the 3rd valve 4, the 4th valve 5, the 5th valve 10 and the 6th valve 12 and second water circulating pump 2 and cooling tower 16 blower fans, only open first water circulating pump, 6, the first valves 8 and second valve 9.When the return water temperature of underground coupled heat exchanger 13 is higher than refrigerating efficiency that certain value can cause system and descends, just adopt series, parallel or heat extraction mode of operation.
When system needs the paralleling model operation, close the 5th valve 10 and the 6th valve 12, open first valve 8, second valve 9, the 3rd valve 4, the 4th valve 5 and first water circulating pump 6, second water circulating pump 2 and cooling tower 16 blower fans simultaneously.
When system needs series model 1 operation, close second valve 9, the 3rd valve 4, the 6th valve 12, open first valve 8, the 4th valve 5, the 5th valve 10 and first water circulating pump 6, second water circulating pump 2 and cooling tower 16 blower fans simultaneously.
When system needs series model 2 operations, close first valve 8, the 4th valve 5, the 5th valve 10, open second valve 9, the 3rd valve 4, the 6th valve 12 simultaneously, and first water circulating pump 6, second water circulating pump 2 and cooling tower 16 blower fans.
Having only system, long-term in running order to cause underground coupled heat exchanger 13 to advance the backwater temperature higher and advance under the situation that backwater temperature difference becomes very little; Or underground coupled heat exchanger 3 loops be need overhaul the time, just enable the cooling tower loop pattern that works independently.At this moment, close first valve 8, second valve 9, the 5th valve 10, the 6th valve 12, open first water circulating pump 6, second water circulating pump 2 and cooling tower 16 blower fans.
When system needs the heat extraction mode operation (generally at night), water-water heat pump 7 is out of service, and miscellaneous part is pressed series model 1 or 2 operations.
If heat pump adopts manual control mode, first valve 8, second valve 9, the 3rd valve 4, the 4th valve 5, the 5th valve 10, the 6th valve 12 all adopt manual ball valve.Operating personnel are according to outside air temperature and flatly descend coupled heat exchanger 13 leaving water temperatures to judge the mode of operation of heat pump, adopt corresponding valve of manual mode opening and closing and water circulating pump.
If system adopts the computer controlled automatic mode, first valve 8, second valve 9, the 3rd valve 4, the 4th valve 5, the 5th valve 10, the 6th valve 12 all adopt motor-driven valve or magnetic valve.First water circulating pump 6 and second water circulating pump 2, cooling tower 16 blower fans need to control with solid-state relay.Computer control is designed two kinds of operating modes and six kinds of mode of operations in advance.Operating personnel select operating condition and mode of operation on the computer operation interface, perhaps computer is determined mode of operation, the opening and closing of computer controlled automatic motor-driven valve or magnetic valve, water circulating pump and blower fan automatically according to the return water temperature of outdoor air humiture and underground coupled heat exchanger.
Claims (4)
1. multiple closed loop soil-derived water-water heat pump system, comprise water-water heat pump (7), it is characterized in that: the source outlet of described water-water heat pump (7) is connected with first water circulating pump (6), described water-water heat pump (7) is by described first water circulating pump (6) and first valve (8), underground coupled heat exchanger, second valve (9) is composed in series the first source loop, described water-water heat pump (7) is by described first water circulating pump (6) and the 3rd valve (4), heat exchanger (3), the 4th valve (5) is composed in series the second source loop, and another heat-exchange end of described heat exchanger is connected with cooling tower (16) by second water circulating pump (2); Be connected with the 5th valve (10) behind preceding and described the 3rd valve of described second valve (9) (4), be connected with the 6th valve (12) behind preceding and described first valve of described the 4th valve (5) (8).
2. according to claim (1) 6 kinds of mode of operations that described multiple closed loop soil-derived water-water heat pump system had, two isolated operation patterns, paralleling model, two series models, heat extraction pattern.
3. multiple closed loop soil-derived water-water heat pump system according to claim 1 is characterized in that: the underground coupled heat exchanger in the described first source loop is the vertical U-type coupled heat exchanger or flatly descends coupled heat exchanger (13).
4. multiple closed loop soil-derived water-water heat pump system according to claim 1 and 2 is characterized in that: described heat exchanger is plate type heat exchanger (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200632717U CN201028889Y (en) | 2007-05-18 | 2007-05-18 | Multi-component closed-circuit soil source water-water heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200632717U CN201028889Y (en) | 2007-05-18 | 2007-05-18 | Multi-component closed-circuit soil source water-water heat pump system |
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| Publication Number | Publication Date |
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| CN201028889Y true CN201028889Y (en) | 2008-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007200632717U Expired - Fee Related CN201028889Y (en) | 2007-05-18 | 2007-05-18 | Multi-component closed-circuit soil source water-water heat pump system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329762A (en) * | 2014-11-27 | 2015-02-04 | 铁道第三勘察设计院集团有限公司 | System for directly supplying heat for soil heat exchanger by utilizing air heat energy |
| CN110986227A (en) * | 2019-12-10 | 2020-04-10 | 重庆交通大学 | Coupling heat exchange energy-saving air conditioning system |
-
2007
- 2007-05-18 CN CNU2007200632717U patent/CN201028889Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104329762A (en) * | 2014-11-27 | 2015-02-04 | 铁道第三勘察设计院集团有限公司 | System for directly supplying heat for soil heat exchanger by utilizing air heat energy |
| CN110986227A (en) * | 2019-12-10 | 2020-04-10 | 重庆交通大学 | Coupling heat exchange energy-saving air conditioning system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 Termination date: 20110518 |