CN202013045U - Soil source water-water heat pump device - Google Patents

Soil source water-water heat pump device Download PDF

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Publication number
CN202013045U
CN202013045U CN2011200928017U CN201120092801U CN202013045U CN 202013045 U CN202013045 U CN 202013045U CN 2011200928017 U CN2011200928017 U CN 2011200928017U CN 201120092801 U CN201120092801 U CN 201120092801U CN 202013045 U CN202013045 U CN 202013045U
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China
Prior art keywords
valve
water
heat exchanger
heat pump
pump
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Expired - Fee Related
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CN2011200928017U
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Chinese (zh)
Inventor
刘波
侯智军
杨圣
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HUNAN RUNFENG ENERGY TECHNOLOGY DEVELOPMENT CO LTD
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HUNAN RUNFENG ENERGY TECHNOLOGY DEVELOPMENT CO LTD
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Priority to CN2011200928017U priority Critical patent/CN202013045U/en
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Publication of CN202013045U publication Critical patent/CN202013045U/en
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Abstract

The utility model discloses a soil source water-water heat pump device. A source lateral outlet of a water-water heat pump (7) is connected with a first circulating pump (6), and the water-water heat pump (7) is in serial connection with a first valve (8), an underground coupling heat exchanger and a second valve (9) through the first circulating pump (6) to form a first source lateral loop. The water-water heat pump (7) is in serial connection with a third valve (4), a heat exchanger (3) and a fourth valve (5) through the first circulating pump (6) to form a second source lateral loop. Another heat exchanging end of the heat exchanger is connected with a cooling tower (16) through a second circulating pump (2). A fifth valve (10) is arranged in front of the second valve (9) and behind the third valve (4) in a connecting mode. A sixth valve (12) is arranged in front of the fourth valve (5) and behind the first valve (8) in a connecting mode. The soil source water-water heat pump device can be applied to a project that air conditioning load in summer is larger than warming load in winter in hot-summer and cold-winter regions, can reduce the initial investment of heat pump systems of such projects by a large margin, and improves the energy efficiency and the reliability of the systems.

Description

A kind of soil-derived water-water heat pump installation
Technical field
The utility model relates to a kind of heat pump assembly, particularly relates to a kind of soil-derived water-water heat pump installation 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.
Summary of the invention
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, improves the soil-derived water-water heat pump installation of system's energy efficiency and reliability.
In order to solve the problems of the technologies described above, the soil-derived water-water heat pump installation 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 soil-derived water-water heat pump installation 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 soil-derived water-water heat pump installation of system's energy efficiency and reliability.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 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.
First valve 8, second valve 9, the 3rd valve 4, the 4th valve 5, the 5th valve 10, the 6th valve 12 were motor-driven valve or magnetic valve when system was automatic control mode, and first valve 8, second valve 9, the 3rd valve 4, the 4th valve 5, the 5th valve 10, the 6th valve 12 were ball valve when system was manual control mode.
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 13 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 (3)

1. soil-derived water-water heat pump installation, 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. soil-derived water-water heat pump installation 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).
3. soil-derived water-water heat pump installation according to claim 1 and 2 is characterized in that: described heat exchanger is plate type heat exchanger (3).
CN2011200928017U 2011-04-01 2011-04-01 Soil source water-water heat pump device Expired - Fee Related CN202013045U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200928017U CN202013045U (en) 2011-04-01 2011-04-01 Soil source water-water heat pump device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200928017U CN202013045U (en) 2011-04-01 2011-04-01 Soil source water-water heat pump device

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CN202013045U true CN202013045U (en) 2011-10-19

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102562496A (en) * 2012-01-17 2012-07-11 天津大学 Middle/low-temperature geothermic efficient thermoelectric coupling combined supply system based on organic Rankine cycle (ORC)
CN105972861A (en) * 2016-06-30 2016-09-28 华东建筑设计研究院有限公司 Water source heat pump system device based on technological waste heat recycle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102562496A (en) * 2012-01-17 2012-07-11 天津大学 Middle/low-temperature geothermic efficient thermoelectric coupling combined supply system based on organic Rankine cycle (ORC)
CN102562496B (en) * 2012-01-17 2013-08-07 天津大学 Middle/low-temperature geothermic efficient thermoelectric coupling combined supply system based on organic Rankine cycle (ORC)
CN105972861A (en) * 2016-06-30 2016-09-28 华东建筑设计研究院有限公司 Water source heat pump system device based on technological waste heat recycle

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20111019

Termination date: 20150401

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