CN102393049A - Ground-source heat-pipe/heat-pump air conditioner - Google Patents
Ground-source heat-pipe/heat-pump air conditioner Download PDFInfo
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- CN102393049A CN102393049A CN2011103090881A CN201110309088A CN102393049A CN 102393049 A CN102393049 A CN 102393049A CN 2011103090881 A CN2011103090881 A CN 2011103090881A CN 201110309088 A CN201110309088 A CN 201110309088A CN 102393049 A CN102393049 A CN 102393049A
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Abstract
The invention provides a ground-source heat-pipe/heat-pump air conditioner which is composed of an underground heat exchanger, an overground heat exchanger, a gas loop, a liquid loop and a control system, wherein the underground heat exchanger is embedded into an underground invariable-temperature stratum, when the air conditioner is running, an operation of heat exchange is performed between the underground heat exchanger and the underground invariable-temperature stratum so as to realize the air refrigerating or heating function of the air conditioner. The ground-source heat-pipe/heat-pump air conditioner has four running modes, namely, a heat-pump refrigerating mode, a heat-pipe refrigerating mode, a heat-pump heating mode and a heat-pipe heating mode, therefore, the ground-source heat-pipe/heat-pump air conditioner is an ideal energy-saving air conditioning system.
Description
Technical field
The present invention provides a kind of ground source heat pipe heat pump air conditioner, belongs to mechanical engineering field, particularly belongs to the refrigeration associating air-conditioning system F25B field that heats.
Background technology
Air source heat pump air-conditioner is to use the air-conditioning system the widest, that technology is the most ripe at present.Its advantage be cheap, install easy, easy to use.Its shortcoming is lower at cold district heating efficiency in winter, can't substitute heating system.
Geothermal heat pump air-conditioner is a kind of energy-saving air conditioning system that new development is got up.Its advantage is energy-efficient, has both adapted to the refrigeration cool-down in summer, is suitable for heating heating winter again.Its shortcoming is high, the difficult installation of system complex, cost, only is suitable for whole sub-district and installs, and inapplicable single family installs.
The under ground portion of geothermal heat pump air-conditioner just is equivalent to the outer machine part of conventional heat pump air-conditioning; The soil of underground certain depth (underground water) temperature changes very little with atmospheric temperature; Remain essentially in 13 ℃ ~ 15 ℃; This just need not consider the temperature difference problem that traditional air-conditioner outdoor unit must be considered, can make full use of source, ground ability.Earth source heat pump is with the energy of source, ground ability (soil, underground water, surface water, low temperature geothermal water) as heat pump type air conditioning system, realizes can warming oneself the economizing type energy that can lower the temperature summer winter.It is a kind of effective way that can replace the conventional heat pump air-conditioning.
Earth-source hot-pump system mainly is made up of three kinds of parts: outdoor heat pump, source pump and indoor temperature control end equipment.Earth-source hot-pump system can be divided into soil buried tube type, underground ability of swimming and face of land ability of swimming according to the difference of its outdoor earth-source hot-pump system.
Soil buried tube type heat pump has soil coupling geothermal heat exchanger, or level is installed in the trench, or is vertically mounted in the vertical shaft with the U-shaped tubulose, and the degree of depth reaches below the thermostat layer of the face of land.As heat carrier, realize heat-obtaining refrigeration in summer in winter through intermediate medium (water perhaps adds the water of antifreezing agent) thereby in heat exchanger, circulate.The weak point of this system is to need large-scale circulating pump to send into thermal medium in the ground heat exchanger, and power consumption is very big; And this system only is suitable for the indoor temperature control of building (as whole residential building, building etc.), concerning single middle-size and small-size user, just wastes energy very much.
Ground water regime is through the construction gang of wells that draws water, and underground water is extracted out, through secondary heat exchange or directly deliver to the water resource heat pump group, after extraction heat or release heat, sends back to underground.Weak point is to need groundwater abstraction, forms floor drain easily, has not only destroyed ground water regime, also possibly cause surface collapse, and structure foundation is had certain threat, and this system is out of use in the place of lack of water.
The underground water heat exchanger that the surface water heat pump system is made up of the plastic tube of the multiple parallel connection below the potential water surface; Replaced ground heat exchanger; They are connected in the temperature-controlling system in the building, owing to be to utilize nature water as the temperature control energy, need antifreeze processing at northern area.Shortcoming is to receive the region restriction, can only be could use near the place at water source very much.
Summary of the invention
In order to overcome the deficiency that family expenses general expression heat pump type air conditioning system must defrost, and the shortcoming that existing at present various ground source heats can air-conditionings, the object of the present invention is to provide the mating type earth source air conditioner of a kind of existing heat pump air conditioner and ground source heat ability air-conditioning.
This air-conditioning system utilizes heat pipe to extract energy from underground thermostat layer; The outdoor machine part that does not need the conventional heat pump air-conditioning; And be to use earth source air conditioner technological; Adopt underground heat pipe section to substitute the off-premises station of heat pump air conditioner, so not only save the outdoor fan of traditional air-conditioning institute power consumption source, but also solved the mass energy consumption problem that must defrost when heating winter.
Comparing this air-conditioning system of common geothermal heat pump air-conditioner does not need large-scale circulating pump to drive the cycles back and forth of a large amount of heat transferring mediums, such and existing geothermal heat pump air-conditioner savings in comparison power consumption; And the working media that adopts in the heat pipe does not have corrosivity to underground heat pipe, and heat pipe can use for a long time under the old place; Shortcomings such as source heat pump system underground heat exchange pipe is long routinely, the refrigerating medium flow resistance is bigger have been overcome simultaneously; Whole in addition underground system is the hermetic type space, do not worry condensing agent leak outside and to underground soil and phreatic harm, health environment-friendly; Because what in heat pipe, take place is gas--liquid phase conversion heat; Its heat flow density is far above the heat flow density of descending routinely single-phase heat exchange in the heat exchanger tube; This has also just determined need not very big underground system, controllably descends the heat pipe cross-sectional area and the degree of depth according to demand, so just can satisfy large, medium and small different user demands; Thereby improved heat exchange efficiency once more, saved the energy indirectly.
Be called troposphere (some changes being arranged) about subsurface 0m ~ 7m with the region varying depth; Change along with the variation of atmospheric temperature at this aspect soil moisture; And the soil layer below the 7m is because smaller with the atmospheric temperature variable effect, and be called thermostat layer basically all at 13 ℃ ~ 15 ℃ the whole year.The underground heat pipe degree of depth of said this temperature-controlling system should reach underground thermostat layer; Reach landfill heat-conducting medium behind the peripheral edge cover of the heat pipe heat transmission fin of underground thermostat layer in the degree of depth; Be in the adiabatic medium of the peripheral landfill of underground heat pipe of face of land troposphere; Underground heat pipe is inner places the liquid condensation agent, so both guaranteed heat absorption (heat release) ability of liquid condensation agent in thick conduit bottom, also reduced condensing agent rise or the decline process in the energy loss that (heat absorption) cause of lowering the temperature.
When indoor temperature need improve, this air-conditioning system can provide two kinds of heating modes:
First kind is that the heat pipe energy-saving formula heats work.After opening this kind mode of operation; Utilize central control system control gas circuit triple valve, liquid pump triple valve and throttling triple valve to make compressor branch road, liquid pump and orifice union be in off state, and the huge system of compressor branch road, liquid pump bypass branch road and the conducting of throttling bypass branch road.The liquid condensation agent becomes gaseous state at underground absorption heat in the subterranean heat exchanger; Be raised to gas return path in nature by gas self; Get in the wireway of ground heat exchanger through gas circuit triple valve and compressor bypass branch road, be distributed to then in each heat pipe arm, assisting down of heat exchange fan; The gaseous state condensing agent improves indoor temperature through the many vertical heat pipe arm heat radiations of parallel connection; Gaseous state condensing agent liquefy after the heat radiation, the liquid condensation agent falls into the catheter of heat exchanger on the ground by the self gravitation effect, flows out through catheter again; Get into fluid loop; Get in the subterranean heat exchanger through fluid reservoir, throttling bypass branch road, throttling triple valve, liquid pump bypass branch road and liquid pump triple valve respectively, the liquid condensation agent falls into underground heat pipe bottom through the catheter of subterranean heat exchanger, and the thermal cycle of energy-saving type heat control is accomplished like this.
Second kind of heat-pump-type warming operation.When indoor temperature also need improve; Can open this kind mode of operation; Utilize central control system control gas circuit triple valve, liquid pump triple valve and throttling triple valve to make compressor branch road, liquid pump bypass branch road and choke valve assembly be in channel status, compressor bypass branch road, liquid pump, throttling bypass branch road are in off state.Utilize the control system to change compressor annex cross valve outgassing direction; Compressor increasing gaseous state condensing agent pressure and temperature is through the gaseous state condensing agent entering ground heat exchanger of temperature raising pressurization, assisting down of aluminium foil fins set and heat exchange fan; Improve indoor temperature through the many vertical heat pipe arm heat radiations of parallel connection; Gaseous state condensing agent liquefy after the heat radiation, the liquid condensation agent falls into the catheter of heat exchanger on the ground by the self gravitation effect, flow into fluid loop through catheter again; Through behind fluid reservoir, check valve and the Filter dryer in the throttling of expansion valve place; Flowing through then gets into subterranean heat exchanger behind throttling triple valve, liquid pump bypass branch road and the liquid pump triple valve, and the catheter from subterranean heat exchanger flows back to the underground heat pipe again, and the liquid condensation agent is absorbed heat in underground heat pipe and become gaseous state and get into circulation next time.
Under this duty that heats for environment; Condensing agent liquid level in the last heat exchanger is realized control automatically through fluid level controller in the fluid reservoir and central control system; Liquid level is in the catheter of ground heat exchanger always; Promptly expire the gas duty, and the liquid condensation agent liquid level in the underground heat pipe is controlled at more than the thermostat layer, so not only can increase the contact area of liquid condensation agent and underground thermostat layer; Improve the heat absorption rate of condensing agent, but also increase the heat dissipation region of gaseous state condensing agent in the heat exchanger of ground.
When indoor temperature need reduce, this air-conditioning can provide two kinds of cooling methods:
First kind is energy-saving heat-pipe refrigerating work.After opening this kind mode of operation; Utilize central control system control gas circuit triple valve, liquid pump triple valve and throttling triple valve to make compressor branch road, liquid pump bypass branch road and orifice union be in off state, compressor bypass branch road, liquid pump and throttling bypass branch road are in channel status.The liquid condensation agent that the power that provides through liquid pump in the fluid loop drives in the subterranean heat exchanger is flowed through underground catheter earthward; Through getting into the catheter of heat exchanger on the ground behind liquid pump triple valve, liquid pump, throttling triple valve, throttling bypass branch road and the fluid reservoir; Be distributed to then in each heat pipe arm; The liquid condensation agent in each heat pipe arm in the absorption chamber heat become gaseous state; And the condensing agent that becomes gaseous state after the heat absorption constantly moves through the liquid condensation agent under the pressure-driven that the power that provides and gas self constantly expands to underground mobile; Get in the underground heat pipe through compressor bypass branch road and gas circuit triple valve, the gaseous state condensing agent becomes the liquid condensation agent again again through underground heat pipe heat radiation cooling and falls into underground heat pipe bottom, gets into circulation next time.
Second kind is the heat pump type refrigerating pattern.Under the too high situation of indoor consumed power; Can open this kind mode of operation; Utilize central control system control gas circuit triple valve, liquid pump triple valve and throttling triple valve to make compressor branch road, liquid pump bypass branch road and orifice union be in channel status, compressor bypass branch road, liquid pump and throttling bypass branch road are in off state.Utilize the control system to change the outgassing direction of compressor annex cross valve; Compressor in the gas return path drives the gaseous state condensing agent and moves to underground heat pipe; The high-temperature gas condensing agent is at the underground thermostat layer liquefy condensing agent that is cooled, and the liquid condensation agent is risen under the pressure that compressor provides, behind liquid pump triple valve, liquid pump bypass branch road, throttling triple valve, check valve and device for drying and filtering; Temperature information according to the bulb transmission; The liquid condensation agent is carried out getting into heat exchanger on the ground after the suitable throttling in expansion valve, heat in the absorption chamber when liquid condensation agent is vaporized in the heat pipe arm of ground heat exchanger, thereby regulation and control indoor temperature.
This be under the environment refrigeration work state; Condensing agent liquid level in the heat exchanger is realized control automatically through fluid level controller in the fluid reservoir and central control system on the ground; Liquid level is in the heat exchanger wireway of ground always, promptly expires the liquid duty, most of condensing agent is all in each arm of heat pipe; And the residue of the liquid condensation agent in underground seldom; So not only can increase liquid condensation agent endotherm area in the indoor heat exchanger, but also increase the contact area of underground gaseous state condensing agent and underground thermostat layer, strengthen radiating efficiency.
In heat pipe-type refrigeration work process,, can adopt two kinds of methods to solve if the liquid condensation agent is gasified before throttling because of working environment is too high.First kind is to change liquid pump into the underground waterproof liquid pump to be installed in underground; Coupling cock that also has with the parallel connection of underground waterproof liquid pump; Promptly coupling cock is closed when the waterproof liquid pump is worked; Coupling cock is opened when the waterproof liquid pump stops, the pressure drop that this mode has produced in catheter when just having solved and having carried liquid refrigerant because of liquid pump on ground; Another kind of solution is that supercooling apparatus is installed in subterranean heat exchanger; Supercooling apparatus is made up of capillary, supercooling tube road, sub-cooling coil and mistake cold compressor, and sub-cooling coil is placed on subterranean heat exchanger heat pipe bottom, crosses cold compressor and is installed in ground; One end of sub-cooling coil is installed the throttling arrangement capillary; The other end connects compressor through the supercooling tube road, and gas return path is inserted in the exit of compressor, has so just formed a miniature condenser; And the liquid pump in compressor and the fluid loop has central control system control with rising with stopping, and prevents that the liquid condensation agent from gasifying before throttling.
Subterranean heat exchanger of the present invention can directly be imbedded underground thermostat layer, also can increase an aid in heat transfer pipe; The diameter of aid in heat transfer Guan Weiyi buried lower end sealing is full of water or heat-conducting liquid greater than the metal or the plastic tube of subterranean heat exchanger in the pipe, subterranean heat exchanger is inserted in the aid in heat transfer pipe, has increased heat transfer area so at last, increases work efficiency.
The temperature detection part of central control system can sensing chamber in variation of temperature; Thereby from four kinds of work systems, select needed duty automatically; Accomplish Automatic Control, also can be as the criterion to satisfy user's needs through controlling to adjust duty manually.
Description of drawings
Figure one implements figure for the overall structure of ground source heat pipe heat pump air conditioner of the present invention;
Figure two is structure enlarged drawings of said air-conditioning subterranean heat exchanger;
Figure three is said air-conditioning structure enlarged drawings of heat exchanger on the ground;
Figure four is said air-conditioning gas return path enlarged drawings;
Figure five is said air-conditioning fluid loop enlarged drawings;
Figure six is orifice union enlarged drawings in the said air-conditioning fluid loop;
Figure seven is that the heat pipe energy-saving formula heats working cycle diagram;
Figure eight is that heat-pump-type heats working cycle diagram;
Figure nine is heat pipe energy-saving formula refrigeration work circular charts;
Figure ten is heat pump type refrigerating working cycle diagrams;
Figure 11 is that liquid pump is installed in structure enforcement figure when underground;
Figure 12 is structure enforcement figure that subterranean heat exchanger is installed supercooling apparatus;
Figure 13 is enforcement figure that subterranean heat exchanger is installed shell;
The icon note:
(100), subterranean heat exchanger; (200), ground heat exchanger; (300), gas return path; (400), fluid loop; (1), face of land troposphere; (2), underground thermostat layer; (101), underground heat pipe; (102), adiabatic medium; (103), heat-conducting medium; (104), heat transmission fin; (105), catheter heat insulation layer; (106), underground catheter; (107), downtake; (108), aid in heat transfer pipe; (109), water (heat-conducting liquid); (110), underground waterproof liquid pump; (111), coupling cock; (201), heat pipe; (202), wireway; (203), catheter; (204), aluminium foil fins set; (205), heat exchange fan; (206), liquid level position; (301), gas circuit triple valve; (302), compressor bypass branch road; (303), compressor branch road; (304), bottom main gas tube; (305), top main gas tube; (331), compressor; (332), cross valve; (333), bulb; (334), gas-liquid separator; (401), liquid pump triple valve; (402), liquid pump; (403), liquid pump bypass branch road; (404), throttling triple valve; (405), orifice union; (406), throttling bypass branch road; (407), fluid reservoir; (408), top master catheter; (409), bottom master catheter; (451), check valve; (452), device for drying and filtering; (453), expansion valve; (454), expansion valve; (455), device for drying and filtering; (456), check valve; (501), capillary; (502), supercooling tube; (503), sub-cooling coil, (504), mistake cold compressor
Implementation method
When indoor temperature need improve, this air-conditioning system can provide two kinds of heating modes:
First kind is that the heat pipe energy-saving formula heats work, shown in figure seven.After opening this kind mode of operation; Utilize central control system control gas circuit triple valve (301), liquid pump triple valve (401) and throttling triple valve (404) to make compressor branch road (303), liquid pump (402) and orifice union (405) be in off state, and compressor bypass branch road (302), liquid pump bypass branch road (403) and throttling bypass branch road (406) conducting.The liquid condensation agent becomes gaseous state at underground absorption heat in the subterranean heat exchanger (100); Be raised to gas return path (300) in nature by gas self; Get in the wireway (202) of ground heat exchanger (200) through gas circuit triple valve (301) and compressor bypass branch road (302); Be distributed to then in each heat pipe arm (201); Assisting down of aluminium foil fins set (204) and heat exchange fan (205), the gaseous state condensing agent improves indoor temperatures, the gaseous state condensing agent liquefy after the heat radiation through many vertical heat pipe arms (201) heat radiations of parallel connection; The liquid condensation agent falls into the catheter (203) of heat exchanger (200) on the ground by the self gravitation effect; Flow out through catheter (203) again, get into fluid loop (400), pass through fluid reservoir (407), throttling bypass branch road (406), throttling triple valve (404), liquid pump bypass branch road (403) and liquid pump triple valve (401) respectively and get in the subterranean heat exchanger (100); The liquid condensation agent falls into underground heat pipe (101) bottom through the catheter (106) of subterranean heat exchanger (100), and the thermal cycle of energy-saving type heat control is accomplished like this.
Second kind of heat-pump-type warming operation is shown in figure eight.When indoor temperature also need improve; Can open this kind mode of operation; Utilize central control system control gas circuit triple valve (301), liquid pump triple valve (401) and throttling triple valve (404) to make compressor branch road (303), liquid pump bypass branch road (403) and choke valve assembly (405) be in channel status, compressor bypass branch road (302), liquid pump (402), throttling bypass branch road (406) are in off state.Utilize the control system to change compressor (331) annex cross valve (332) outgassing direction; Compressor (331) strengthens gaseous state condensing agent pressure and temperature; Gaseous state condensing agent through the temperature raising pressurization gets into heat exchanger (200) on the ground; Assisting down of aluminium foil fins set (204) and heat exchange fan (205); Improve indoor temperature through many vertical heat pipe arm (201) heat radiations of parallel connection; Gaseous state condensing agent liquefy after the heat radiation, the liquid condensation agent falls into the catheter (203) of heat exchanger (200) on the ground by the self gravitation effect, flow into fluid loop (400) through catheter (203) again; Locate throttling through fluid reservoir (407), check valve (451) and Filter dryer (452) back at expansion valve (453); Throttling triple valve (404), liquid pump bypass branch road (403) and liquid pump triple valve (401) back of flowing through then gets into subterranean heat exchanger (100), and the catheter (106) from subterranean heat exchanger (100) flows back to the underground heat pipe (101) again, and the liquid condensation agent absorb heat in underground heat pipe (101) and become gaseous state and get into next the circulation.
Under this duty that heats for environment; Condensing agent liquid level (206) in the heat exchanger is realized control automatically through fluid level controller in the fluid reservoir (407) and central control system on the ground; Liquid level is in the catheter (203) of ground heat exchanger (200) always; Promptly expire the gas duty, and the liquid condensation agent liquid level in the underground heat pipe (101) is controlled at more than the thermostat layer (2), so not only can increase the contact area of liquid condensation agent and underground thermostat layer (2); Improve the heat absorption rate of condensing agent, but also increase the heat dissipation region of the middle gaseous state condensing agent of heat exchanger (200) on the ground.
When indoor temperature need reduce, this air-conditioning can provide two kinds of cooling methods:
First kind is energy-saving heat-pipe refrigerating work, shown in figure nine.After opening this kind mode of operation; Utilize central control system control gas circuit triple valve (301), liquid pump triple valve (401) and throttling triple valve (404) to make compressor branch road (303), liquid pump bypass branch road (403) and orifice union (405) be in off state, compressor bypass branch road (302), liquid pump (402) and throttling bypass branch road (406) are in channel status.The liquid condensation agent that the power that provides through liquid pump (402) in the fluid loop (400) drives in the subterranean heat exchanger (100) is flowed through underground catheter (106) earthward; Get into the catheter (203) of heat exchanger (200) on the ground through liquid pump triple valve (401), liquid pump (402), throttling triple valve (404), throttling bypass branch road (406) and fluid reservoir (407) back; Be distributed to then in each heat pipe arm (201); The liquid condensation agent in each heat pipe arm (201) in the absorption chamber heat become gaseous state; And the condensing agent that becomes gaseous state after the heat absorption constantly moves through the liquid condensation agent under the pressure-driven that the power that provides and gas self constantly expands to underground mobile; Get in the underground heat pipe (101) through compressor bypass branch road (302) and gas circuit triple valve (301); The gaseous state condensing agent becomes the liquid condensation agent again again through underground heat pipe (101) heat radiation cooling and falls into underground heat pipe (101) bottom, gets into circulation next time.
Second kind is the heat pump type refrigerating pattern, shown in figure ten.Under the too high situation of indoor consumed power; Can open this kind mode of operation; Utilize central control system control gas circuit triple valve (301), liquid pump triple valve (401) and throttling triple valve (404) to make compressor branch road (303), liquid pump bypass branch road (403) and orifice union (405) be in channel status, compressor bypass branch road (302), liquid pump (402) and throttling bypass branch road (406) are in off state.Utilize the control system to change the outgassing direction of compressor (331) annex cross valve (332); Compressor (331) in the gas return path (300) drives the gaseous state condensing agent and moves to underground heat pipe (201); The high-temperature gas condensing agent is at underground thermostat layer (2) the liquefy condensing agent that is cooled; And the liquid condensation agent is risen under the pressure that compressor (331) provides; Behind liquid pump triple valve (401), liquid pump bypass branch road (403), throttling triple valve (404), check valve (456) and device for drying and filtering (455); Temperature information according to bulb (333) transmission; Carrying out suitable throttling in expansion valve (454) after, the liquid condensation agent gets into heat exchanger (200) on the ground, heat in the absorption chamber when liquid condensation agent is vaporized, thereby regulation and control indoor temperature in the heat pipe arm (201) of ground heat exchanger (200).
This be under the environment refrigeration work state; Condensing agent liquid level (206) in the heat exchanger is realized control automatically through fluid level controller in the fluid reservoir (407) and central control system on the ground; Liquid level is in the wireway (202) of ground heat exchanger (200) always; Promptly expire the liquid duty; Most of condensing agent is all in each arm of heat pipe (201), and the liquid condensation agent of underground heat pipe (101) residue seldom so not only can increase liquid condensation agent endotherm area in the ground heat exchanger (200) in the subterranean heat exchanger (100); But also increase the contact area of underground gaseous state condensing agent and underground thermostat layer (2), strengthen radiating efficiency.
In heat pipe-type refrigeration work process,, can adopt two kinds of methods to solve if the liquid condensation agent is gasified before throttling because of working environment is too high.First kind is to change liquid pump (402) into underground waterproof liquid pump (110) to be installed in underground; Shown in figure 11; Coupling cock (111) that also has with underground waterproof liquid pump (110) parallel connection; Promptly coupling cock (111) is closed when waterproof liquid pump (110) is worked, when waterproof liquid pump (110) when stopping coupling cock (111) open the pressure drop of generation catheter (106) in when this mode has just solved and has been placed on ground and carries liquid refrigerant because of liquid pump (402); Another kind of solution is that supercooling apparatus is installed in subterranean heat exchanger (100); Shown in figure 12; Supercooling apparatus is made up of capillary (501), supercooling tube road (502), sub-cooling coil (503) and mistake cold compressor (504); Sub-cooling coil (503) is placed on underground heat pipe (101) bottom of subterranean heat exchanger (100); Cross cold compressor (504) and be installed in ground, an end of sub-cooling coil (503) is installed throttling arrangement capillary (501), and the other end connected cold compressor (504) through supercooling tube road (502); Crossing the exit of cold compressor (504) inserts on the bottom main gas tube (304) of gas return path (300); So just formed a miniature condenser, had central control system control to stop together with liquid pump (402) in the fluid loop (400), prevented that the liquid condensation agent from gasifying before throttling with rising and cross cold compressor (504).
Subterranean heat exchanger of the present invention (100) can directly be imbedded underground thermostat layer 2, also can increase an aid in heat transfer pipe (108), shown in figure 13; Aid in heat transfer pipe (108) is metal or the plastic tube of the diameter of buried lower end sealing greater than subterranean heat exchanger (100); Be full of water (heat-conducting liquid) (109) in the pipe; Subterranean heat exchanger (100) is inserted in the aid in heat transfer pipe (108); Increased heat transfer area so at last, increased work efficiency.
The temperature detection part of central control system can sensing chamber in variation of temperature; Thereby from four kinds of work systems, select needed duty automatically; Accomplish Automatic Control, also can be as the criterion to satisfy user's needs through controlling to adjust duty manually.
Claims (7)
1. a ground source heat pipe heat pump air conditioner is characterized in that, it is made up of subterranean heat exchanger, ground heat exchanger, gas return path, fluid loop and control system five parts; Said subterranean heat exchanger is made up of underground heat pipe, auxiliary heat-conductive assembly, underground catheter, auxiliary drain assembly and ground downtake; Underground heat-exchange tube lower end connects underground catheter; The upper end connects the ground downtake; Underground heat pipe is imbedded underground thermostat layer, can follow underground thermostat layer generation heat exchange; Said ground level heat interchanger is made up of heat pipe, aluminium foil fins set and heat exchange fan, and heat pipe comprises many heat pipe arms parallel with one another, and heat pipe top connects wireway, and the heat pipe lower end connects catheter; Said gas return path is by main gas tube, gas circuit triple valve, compressor branch road and bypass branch road constitute up and down; The compressor branch road comprises compressor, bulb, gas-liquid separator, oil-filtering apparatus and switching-over cross valve, and main gas tube connects the wireway of ground heat exchanger and the wireway of subterranean heat exchanger respectively up and down; Fluid loop is by main catheter, liquid pump, liquid pump triple valve, liquid pump bypass arm, orifice union, throttling triple valve, throttling bypass arm and fluid reservoir constitute up and down; Orifice union comprises two expansion valves, two devices for drying and filtering and two check valves, and main up and down catheter connects the catheter of ground heat exchanger and the catheter of subterranean heat exchanger respectively; Subterranean heat exchanger, gas return path, ground heat exchanger, fluid loop constitute the closed cryogenic cycles loop jointly, are filled with cold-producing medium in the loop; The control system by sensor, control chip, manually and remote input units, display unit, electronic switch constitute; Sensor comprises a plurality of temperature sensors, a plurality of pressure sensor and a plurality of liquid level sensor; Compressor, liquid pump, heat exchange fan and each magnetic valve are all to there being electronic switch; Control chip is controlled electronic switch according to artificial input instruction and sensor parameters, thus the mode of operation of control air-conditioning.
2. a kind of ground source heat pipe heat pump air conditioner that provides according to claims 1; It is characterized in that; Said subterranean heat exchanger can have two kinds of versions: a kind of is that the heat pipe and the wireway of subterranean heat exchanger is thicker, and catheter is arranged on the inside of heat-exchange tube and wireway; Another kind is that the heat pipe and the wireway of subterranean heat exchanger is thinner, the outside that is arranged on heat-exchange tube and wireway that catheter is parallel.
3. a kind of ground source heat pipe heat pump air conditioner that provides according to claims 1 and 2 is characterized in that said subterranean heat exchanger can directly be imbedded underground thermostat layer, also can increase an aid in heat transfer pipe; The diameter of aid in heat transfer Guan Weiyi buried lower end sealing is full of water or heat-conducting liquid greater than the metal or the plastic tube of subterranean heat exchanger in the pipe, subterranean heat exchanger is inserted in the aid in heat transfer pipe.
4. a kind of ground source heat pipe heat pump air conditioner that provides according to claims 1,2 and 3 is characterized in that said liquid pump can be arranged on the lower end of subterranean heat exchanger, also can be arranged on the ground; When liquid pump is arranged on the lower end of subterranean heat exchanger, need increase the servicing unit liquid pump and just can extrude ground to liquid refrigerant; When liquid pump was arranged on the ground, the interior pressure of underground catheter needed to increase the evaporation boiling that the cold-producing medium supercooling apparatus just can be avoided the liquid refrigerant in the underground catheter less than the interior pressure of underground heat pipe, and underground catheter is outer simultaneously will establish heat insulation layer; Supercooling apparatus is by cold choke valve, supercooling tube, mistake cold compressor three parts constitute excessively; Cross cold choke valve and be installed in the subterranean heat exchanger lower end; Crossing cold compressor is installed on the ground; Supercooling tube connects choke valve and crosses cold compressor, and the supercooling tube lower end is directly immersed refrigerating fluid and refrigerating fluid is cooled off, and makes its subcritical temperature reach supercooled state.
5. a kind of ground source heat pipe heat pump air conditioner that provides according to claims 1 to 4 is characterized in that said subterranean heat exchanger can be independently one, also can be that a plurality of subterranean heat exchangers compose in parallel a big subterranean heat exchanger.
6. a kind of ground source heat pipe heat pump air conditioner that provides according to claims 1 to 5 is characterized in that said ground heat exchanger can be independently one, also can be the heat exchanger parallel connections of a plurality of grounds, thereby form a central air conditioner system.
7. a kind of ground source heat pipe heat pump air conditioner that provides according to claims 1 to 6 is characterized in that, this ground source heat pipe heat pump air conditioner has that heat pump refrigerating, heat-pipe refrigerating, heat pump heat, heat pipe heats four kinds of mode of operations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110309088 CN102393049B (en) | 2011-10-13 | 2011-10-13 | Ground-source heat-pipe/heat-pump air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110309088 CN102393049B (en) | 2011-10-13 | 2011-10-13 | Ground-source heat-pipe/heat-pump air conditioner |
Publications (2)
| Publication Number | Publication Date |
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| CN102393049A true CN102393049A (en) | 2012-03-28 |
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| CN102889657A (en) * | 2012-11-07 | 2013-01-23 | 广西嵘光珈程科技发展有限公司 | Composite pipe type temperature control device |
| CN104307583A (en) * | 2014-11-05 | 2015-01-28 | 湖北民族学院 | Chip-scale gas-liquid separator and control system thereof |
| CN104697081A (en) * | 2013-12-09 | 2015-06-10 | 北京紫荆信达节能科技有限公司 | Soil source heat pump system with natural cooling function |
| CN107588490A (en) * | 2016-07-08 | 2018-01-16 | 浙江盾安人工环境股份有限公司 | Refrigeration heat pipe composite air conditioner system and its control method |
| CN108917055A (en) * | 2018-06-01 | 2018-11-30 | 奉政 | Ground-source heat-pipe self-circulation type builds cooling/warming system |
| CN109595976A (en) * | 2018-12-03 | 2019-04-09 | 湖南达道新能源开发有限公司 | A kind of GEOTHERMAL WATER combination water resource heat pump and the solar heating circulatory system |
| CN110486873A (en) * | 2019-08-27 | 2019-11-22 | 河南城建学院 | A kind of absorption assisted air conditioning system of heat pipe |
| TWI686572B (en) * | 2017-06-07 | 2020-03-01 | 日商環保規劃股份有限公司 | Control method of heat exchange device, heat exchange device and water-cooled heat pump device |
| CN111637651A (en) * | 2020-06-09 | 2020-09-08 | 奉政一 | Method and device for acquiring and releasing condensation heat of underground heat exchange tube |
| EP3841330A4 (en) * | 2018-08-20 | 2022-01-26 | Quantitative Heat OY | Method and arrangement in connection with a building |
| EP3954946A1 (en) * | 2020-08-03 | 2022-02-16 | Commercial Energy Saving Plus, LLC | Geothermal adapter for use with a heat pump |
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| CN104697081A (en) * | 2013-12-09 | 2015-06-10 | 北京紫荆信达节能科技有限公司 | Soil source heat pump system with natural cooling function |
| CN104307583A (en) * | 2014-11-05 | 2015-01-28 | 湖北民族学院 | Chip-scale gas-liquid separator and control system thereof |
| CN104307583B (en) * | 2014-11-05 | 2015-09-09 | 湖北民族学院 | Chip-scale gas-liquid separator and control system thereof |
| CN107588490A (en) * | 2016-07-08 | 2018-01-16 | 浙江盾安人工环境股份有限公司 | Refrigeration heat pipe composite air conditioner system and its control method |
| TWI686572B (en) * | 2017-06-07 | 2020-03-01 | 日商環保規劃股份有限公司 | Control method of heat exchange device, heat exchange device and water-cooled heat pump device |
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| CN108917055A (en) * | 2018-06-01 | 2018-11-30 | 奉政 | Ground-source heat-pipe self-circulation type builds cooling/warming system |
| EP3841330A4 (en) * | 2018-08-20 | 2022-01-26 | Quantitative Heat OY | Method and arrangement in connection with a building |
| CN109595976A (en) * | 2018-12-03 | 2019-04-09 | 湖南达道新能源开发有限公司 | A kind of GEOTHERMAL WATER combination water resource heat pump and the solar heating circulatory system |
| CN110486873A (en) * | 2019-08-27 | 2019-11-22 | 河南城建学院 | A kind of absorption assisted air conditioning system of heat pipe |
| CN111637651A (en) * | 2020-06-09 | 2020-09-08 | 奉政一 | Method and device for acquiring and releasing condensation heat of underground heat exchange tube |
| EP3954946A1 (en) * | 2020-08-03 | 2022-02-16 | Commercial Energy Saving Plus, LLC | Geothermal adapter for use with a heat pump |
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