CN115164409A - Double-source high-temperature heat pump unit and use method - Google Patents
Double-source high-temperature heat pump unit and use method Download PDFInfo
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- CN115164409A CN115164409A CN202211028750.0A CN202211028750A CN115164409A CN 115164409 A CN115164409 A CN 115164409A CN 202211028750 A CN202211028750 A CN 202211028750A CN 115164409 A CN115164409 A CN 115164409A
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- 238000000034 method Methods 0.000 title claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 189
- 239000003507 refrigerant Substances 0.000 claims description 53
- 238000010438 heat treatment Methods 0.000 claims description 49
- 239000007788 liquid Substances 0.000 claims description 32
- 230000017525 heat dissipation Effects 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 8
- 238000004321 preservation Methods 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000009795 derivation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000002937 thermal insulation foam Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H6/00—Combined water and air heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/219—Temperature of the water after heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/345—Control of fans, e.g. on-off control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
- F24H4/04—Storage heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/10—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground
- F24T10/13—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes
- F24T10/15—Geothermal collectors with circulation of working fluids through underground channels, the working fluids not coming into direct contact with the ground using tube assemblies suitable for insertion into boreholes in the ground, e.g. geothermal probes using bent tubes; using tubes assembled with connectors or with return headers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
- F24T10/00—Geothermal collectors
- F24T10/30—Geothermal collectors using underground reservoirs for accumulating working fluids or intermediate fluids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
Abstract
The invention provides a double-source high-temperature heat pump unit and a using method, which belong to the technical field of heat pump units and solve the problems that the conventional high-temperature heat pump unit has single function, cannot meet the requirement of being used in winter and cannot well distribute collected heat; the collected heat is well distributed according to the requirements of the use environment.
Description
Technical Field
The invention belongs to the field of steam heat pumps, relates to a heat pump unit technology, and particularly relates to a double-source high-temperature heat pump unit and a use method thereof.
Background
Most of heat pump machines in the market are efficient heat energy lifting and transferring devices which work based on reverse Carnot cycle, utilize a small amount of electric energy as power, take refrigerant as a carrier, continuously absorb low-grade heat energy in air, convert the low-grade heat energy into usable high-grade heat energy, release the high-grade heat energy into water to be heated, prepare domestic hot water, and convey the domestic hot water to users through hot water pipelines.
The heat pump machine can realize multiple times of energy utilization efficiency, and is a new generation hot water manufacturing device which is most economical, most energy-saving, most safe and most environment-friendly. Basic principle of heat pump machine: the device mainly comprises a compressor, a heat exchanger, an axial fan, a heat-preservation water tank, a water pump, a liquid storage tank, a filter, an electronic expansion valve, an electronic automatic controller and the like. After the power supply is switched on, the heat energy with lower temperature is absorbed from the environment heat source (such as water and air), and then the heat energy is converted into the heat energy with higher temperature and released to the circulating medium (such as water and air) to become the heat source with high temperature for output. The operation of the compressor consumes electric energy, and the operation of the compressor enables the continuously circulating refrigerant to generate different changing states and different effects (namely evaporation heat absorption and condensation heat release) in different systems, so that the effect and the purpose of recovering a low-temperature heat source to prepare a high-temperature heat source are achieved, and the basic working principle of the air source heat pump machine is provided.
The heat pump machine in the prior art has the following problems: 1. the existing heat pump machine mostly adopts air energy or hot water for heat collection, but in winter, the air is cold, the air energy utilization is limited, and the heat pump machine adopting hot water for heat supply needs to continuously supply hot water, so that the energy waste is large; 2. the heat pump machine in the prior art can not well distribute the collected heat, and the heat pump machine on the market can only produce hot water generally and can not produce hot water or hot air according to the use requirement; therefore, the above problems cannot be solved by the heat pump machine in winter, and the heat collected by the heat pump machine can be distributed well according to the use environment, so that a dual-source high-temperature heat pump machine set and a use method thereof are urgently needed to solve the problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a double-source high-temperature heat pump unit and a using method thereof, aiming at solving the problems in the background art, the double-source high-temperature heat pump unit has a reasonable structure, adopts air energy to supply heat in summer, and adopts geothermal energy to supply heat in winter; the collected heat is well distributed according to the requirements of the use environment.
In order to achieve the purpose, the invention is realized by the following technical scheme: a double-source high-temperature heat pump unit comprises a heat pump unit box body, wherein a double-source heat collecting mechanism used for collecting air energy and geothermal energy is arranged in the heat pump unit box body, a double-source heat outlet mechanism used for distributing and leading out collected heat sources is arranged in the heat pump unit box body, and a heat dissipation mechanism used for carrying out overheat protection on the collected heat energy is further arranged in the heat pump unit box body;
the double-source heat collection mechanism comprises a compressor, a condenser, a liquid storage tank, a filter and an expansion valve which are arranged in a heat pump machine box body, wherein the compressor, the condenser, the liquid storage tank, the filter and the expansion valve are sequentially connected in series through refrigerant pipelines, the leading-in end of the compressor is connected with a first three-way valve through a refrigerant pipeline, two leading-in ends of the first three-way valve are sequentially connected with a first evaporator and a second evaporator through refrigerant pipelines, the leading-out end of the expansion valve is connected with a second three-way valve through a refrigerant pipeline, and two leading-out ends of the second three-way valve are connected with the leading-in ends of the first evaporator and the second evaporator through refrigerant pipelines;
the double-source heat outlet mechanism comprises a water tank, the water tank is wrapped outside the condenser, and a capillary heat exchange tube is arranged inside the water tank;
the heat dissipation mechanism comprises a cooling fin, a temperature sensor, a first fan and a second fan, the cooling fin penetrates through the water tank, the second fan is arranged outside the cooling fin, the temperature sensor is arranged on the inner wall of the water tank, and the first fan is arranged at the top of the heat pump machine box body.
Further, the fan control device further comprises a heat dissipation control mechanism, the heat dissipation control mechanism comprises a single chip microcomputer, the input end of the single chip microcomputer is electrically connected with the temperature sensor, and the output end of the single chip microcomputer is electrically connected with the first fan and the second fan.
Further, the outside parcel of water tank has the heat preservation foam, the top of water tank is run through and is provided with voltage limiting valve one, the leading-in end of water tank is provided with the inlet tube, the leading-out end of water tank is provided with the outlet pipe, inlet tube and outlet pipe all run through water tank and heat pump machine box.
Further, the capillary heat exchange tube material is high heat conduction metal material, the capillary heat exchange tube winding is in the outside of condenser, and the capillary heat exchange tube setting is inside the water tank, the leading-in end of capillary heat exchange tube is provided with the intake pipe, the derivation end of capillary heat exchange tube is provided with the outlet duct, intake pipe and outlet duct all run through water tank and heat pump machine box.
Furthermore, one end of the heat pump machine box body is provided with an air inlet grid, an air box is arranged outside the heat pump machine box body, the first evaporator is arranged inside the air box, an air inlet and an air outlet are formed in the air box in a penetrating mode, and a third fan is arranged at the air outlet.
Furthermore, a heating box wraps the outside of the evaporator II, heat exchange fins are arranged on the edge portion of the heating box, an electric turbine accelerating the heat conduction rate is arranged inside the heating box, the heating box is made of high-heat-conductivity metal materials, a pressure limiting valve II penetrates through the heating box, and a plug penetrates through the heating box.
Furthermore, a heat preservation pipe used for wrapping a refrigerant pipeline is arranged between the heat collection box and the heat pump box body.
Furthermore, three conducting positions of the first three-way valve and the second three-way valve are provided with electromagnetic valves.
Another objective of the present invention is to provide a method for using a dual-source high-temperature heat pump unit, which comprises the following steps:
s1, opening a plug on a heating box, injecting a high-heat-conduction liquid medium, closing the plug, respectively connecting an inlet end and an outlet end of a second evaporator with an inlet end of a first three-way valve and an outlet end of the second three-way valve through refrigerant pipelines, and wrapping a heat-insulation pipe by the refrigerant pipeline between the heating box and a heat pump box body;
step S1-1, excavating a foundation pit with the depth of 5-10m on the designated ground in advance, placing a heat collecting box at the bottom of the foundation pit and burying the foundation pit, and installing a heat pump machine box body above the foundation pit;
s1-2, introducing a cold water source to be heated into a water inlet pipe of a water tank through a pipeline, and leading out the cold water source through a water outlet pipe, and introducing air to be heated into an air outlet pipe of the water tank through a pipeline, and leading out the air outlet pipe;
s2, when the air environment outside the heat pump machine box body is hot, the compressor and the fan are electrified, the three-way valve I and the three-way valve II are both closed to be connected with the electromagnetic valve of the refrigerant pipeline of the evaporator II, and the electromagnetic valves of other two inlets and outlets of the three-way valve I and the three-way valve II are opened;
s2-1, transmitting heat of external air absorbed by an evaporator to a compressor through a refrigerant pipeline, gathering the heat of the refrigerant pipeline by the compressor, transmitting the gathered heat to a condenser, heating a cold water source in a water tank into hot water by the condenser, and discharging the hot water through a water outlet pipe;
s2-2, exchanging heat between air to be heated and hot water in the water tank to form hot air, and discharging the hot air through an air outlet pipe;
s3, when the air environment outside the heat pump machine box body is cold and the temperature of the bottom of the foundation pit is high, the compressor is powered on, the fan III is powered off, the three-way valve I and the three-way valve II both close the electromagnetic valve of the refrigerant pipeline connected with the evaporator I, and the electromagnetic valves of the other two inlets and outlets of the three-way valve I and the three-way valve II are opened;
s3-1, transferring heat of the bottom of the foundation pit to a high-heat-conduction liquid medium in a heating box through the heating box, electrifying an electric turbine to accelerate the flow of the high-heat-conduction liquid medium, and finally transferring the heat of the high-heat-conduction liquid medium to a second evaporator;
s3-2, absorbing heat of a high-heat-conductivity liquid medium by the evaporator II, transmitting the heat to the compressor through a refrigerant pipeline, gathering the heat of the refrigerant pipeline by the compressor, transmitting the heat to the condenser, heating a cold water source in the water tank into hot water by the condenser, and discharging the hot water through a water outlet pipe;
and S3-3, exchanging heat between the air to be heated and the hot water in the water tank to form hot air, and discharging the hot air through an air outlet pipe.
Further, when the hot water temperature in the water tank is too high, the temperature sensor receives a temperature value T in the water tank and transmits the temperature value T to the single chip microcomputer, the single chip microcomputer compares T with a temperature value T1 preset in the single chip microcomputer, when T is larger than T1, the single chip microcomputer controls the first fan and the second fan to be powered on, the cooling fins carry the temperature in the water tank to be air-cooled through the second fan, heat on the cooling fins is discharged out of the heat pump machine box body through the first fan, and when T is smaller than T1, the single chip microcomputer controls the first fan and the second fan to be powered off.
The invention has the beneficial effects that:
1. the dual-source heat collecting mechanism is added, when the dual-source heat collecting mechanism is used in summer, the evaporator is used for absorbing the temperature in the outside air, and when the dual-source heat collecting mechanism is used in winter, the temperature in the soil below the ground surface is higher due to the fact that the temperature of the air is too low, and the evaporator is used for absorbing the heat below the ground surface;
2. the double-source heat outlet mechanism comprises a water tank, wherein the water tank is wrapped outside the condenser, and heat insulation foam is wrapped outside the water tank, so that heat loss in the water tank is reduced; when hot water is needed, the water tank is externally connected with a cold water source needing to be heated, and a condenser in the water tank can directly heat the cold water source into hot water; when hot air is needed, the capillary heat exchange tubes are externally connected with normal temperature air, and the heat exchange between the air and the hot water in the water tank is changed into heat, namely hot air is generated;
3. after the heat dissipation mechanism and the heat dissipation control mechanism are combined, when the temperature in the water tank is too high, the heat dissipation plate, the fan I and the fan II are adopted to dissipate the heat of the hot water in the water tank, so that the temperature in the water tank is prevented from being too high;
4. the heating box is wrapped outside the evaporator II, the electric turbine for accelerating the heat conduction rate is arranged inside the heating box, the heating box is made of high-heat-conduction metal materials, the heating box can absorb geothermal energy, and the electric turbine accelerates the flow of a high-heat-conduction liquid medium in the heating box, so that the geothermal energy is quickly transmitted to the evaporator II through the high-heat-conduction liquid medium;
the invention has reasonable structure, adopts air energy to supply heat in summer and adopts geothermal energy to supply heat in winter, which is inexhaustible; the collected heat is well distributed according to the requirements of the use environment.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural diagram of a dual-source high-temperature heat pump unit according to the present invention;
FIG. 2 is a front sectional view of a dual-source high-temperature heat pump unit according to the present invention;
FIG. 3 is a schematic view of a dual-source heat-discharging mechanism in a dual-source high-temperature heat pump unit according to the present invention;
FIG. 4 is a partial cross-sectional view of a dual-source heat collecting mechanism in the dual-source high-temperature heat pump unit of the present invention;
FIG. 5 is a schematic diagram of the connection of a dual-source heat collecting mechanism in a dual-source high-temperature heat pump unit according to the present invention;
FIG. 6 is a schematic diagram of the connection of a heat dissipation control mechanism in a dual-source high-temperature heat pump unit according to the present invention;
in the figure: 1. a heat pump case; 101. an air intake grill; 2. a heat dissipation mechanism; 21. a first fan; 22. a heat sink; 23. a second fan; 24. a temperature sensor; 3. a dual source heat collection mechanism; 31. a condenser; 32. a compressor; 33. a liquid storage tank; 34. a first evaporator; 35. an air box; 351. an air inlet; 352. an air outlet; 353. a third fan; 354. a first three-way valve; 355. a second three-way valve; 36. an expansion valve; 37. a filter; 38. a heating box; 381. an electric turbine; 382. a plug; 383. a first pressure limiting valve; 39. a second evaporator; 4. a heat preservation pipe; 5. a dual-source heat outlet mechanism; 51. a water inlet pipe; 511. a water outlet pipe; 52. a water tank; 521. a second pressure limiting valve; 53. a capillary heat exchange tube; 54. an air inlet pipe; 541. and an air outlet pipe.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1-6, the present invention provides a technical solution: the utility model provides a dual-source high-temperature heat pump unit, including heat pump machine box 1, heat pump machine box 1 is inside to be provided with and to gather the dual-source heat collecting mechanism 3 of air energy and geothermal energy, heat pump machine box 1 is inside to be provided with and to be used for going out hot mechanism 5 to the dual-source of gathering the heat source distribution derivation, heat pump machine box 1 is inside still to be provided with and to be used for carrying out overheat protection's heat dissipation mechanism 2 to the heat energy of gathering, the high-temperature heat pump unit function singleness in the past has been solved, can not satisfy the use in winter, and can not carry out the problem of good distribution with the heat of collecting.
The double-source heat collecting mechanism 3 comprises a compressor 32, a condenser 31, a liquid storage tank 33, a filter 37 and an expansion valve 36 which are arranged in a heat pump machine box body 1, wherein the compressor 32, the condenser 31, the liquid storage tank 33, the filter 37 and the expansion valve 36 are sequentially connected in series through refrigerant pipelines, the leading-in end of the compressor 32 is connected with a first three-way valve 354 through a refrigerant pipeline, two leading-in ends of the first three-way valve 354 are sequentially connected with a first evaporator 34 and a second evaporator 39 through refrigerant pipelines, the leading-out end of the expansion valve 36 is connected with a second three-way valve 355 through a refrigerant pipeline, and two leading-out ends of the second three-way valve 355 are connected with the leading-in ends of the first evaporator 34 and the second evaporator 39 through refrigerant pipelines; the dual source heating mechanism 3 is added to absorb the temperature of the outside air by the first evaporator 34 during summer use and to absorb the heat of the ground by the second evaporator 39 during winter use because the temperature of the air is too low and the temperature of the soil under the ground is higher.
The double-source heat outlet mechanism 5 comprises a water tank 52, wherein the water tank 52 is wrapped outside the condenser 31, and heat insulation foam is wrapped outside the water tank 52, so that heat loss in the water tank 52 is reduced; a capillary heat exchange pipe 53 is arranged in the water tank 52, and a pressure limiting valve 383 is arranged at the top of the water tank 52 in a penetrating manner and used for timely discharging high-pressure gas accumulated in the water tank 52;
the water inlet pipe 51 is arranged at the leading-in end of the water tank 52, the water outlet pipe 511 is arranged at the leading-out end of the water tank 52, the water inlet pipe 51 and the water outlet pipe 511 both penetrate through the water tank 52 and the heat pump machine box body 1, the capillary heat exchange pipe 53 is made of high heat conduction metal, the capillary heat exchange pipe 53 is wound outside the condenser 31, the capillary heat exchange pipe 53 is arranged inside the water tank 52, the leading-in end of the capillary heat exchange pipe 53 is provided with the air inlet pipe 54, the leading-out end of the capillary heat exchange pipe 53 is provided with the air outlet pipe 541, and the air inlet pipe 54 and the air outlet pipe 541 both penetrate through the water tank 52 and the heat pump machine box body 1; when hot water is needed, the water tank 52 is externally connected with a cold water source needing to be heated, and the condenser 31 in the water tank 52 can directly heat the cold water source into hot water; when hot air is needed, the capillary heat exchange tube 53 is externally connected with normal temperature air, and the heat exchange between the air and the hot water in the water tank 52 is changed into heat, namely, hot air is generated.
The heat dissipation mechanism 2 comprises a heat dissipation fin 22, a temperature sensor 24, a first fan 21, a second fan 23, a heat dissipation control mechanism and a heat dissipation control mechanism, wherein the heat dissipation fin 22 penetrates through a water tank 52, the second fan 23 is arranged outside the heat dissipation fin 22, the temperature sensor 24 is arranged on the inner wall of the water tank 52, the first fan 21 is arranged at the top of a heat pump box body 1, the heat dissipation control mechanism comprises a single chip microcomputer, the input end of the single chip microcomputer is electrically connected with the temperature sensor 24, the output end of the single chip microcomputer is electrically connected with the first fan 21 and the second fan 23, and when the temperature in the water tank 52 is too high after the heat dissipation mechanism 2 is combined with the heat dissipation control mechanism, the heat dissipation fin 22, the first fan 21 and the second fan 23 are adopted to dissipate heat of hot water in the water tank 52, so that the temperature in the water tank 52 is prevented from being too high.
One end of the heat pump case body 1 is provided with an air inlet grid 101, and the air inlet grid 101 and a first fan 21 form an airflow passage for heat dissipation of the water tank 52; the outside of the heat pump box body 1 is provided with an air box 35, the first evaporator 34 is arranged inside the air box 35, an air inlet 351 and an air outlet 352 are formed in the air box 35 in a penetrating mode, a third fan 353 is arranged at the air outlet 352, outside air can flow rapidly due to the addition of the third fan 353, and rapid heat exchange with the first evaporator 34 is facilitated.
The heating box 38 is wrapped outside the evaporator II 39, heat exchange fins are arranged on the edge part of the heating box 38, an electric turbine 381 for accelerating the heat conduction rate is arranged inside the heating box 38, the heating box 38 is made of high heat conduction metal, and a pressure limiting valve II 521 is arranged on the heating box 38 in a penetrating mode and used for timely discharging high-pressure gas accumulated in the heating box 38; the plug 382 penetrates through the heating box 38, the heating box 38 can absorb geothermal energy, and the electric turbine 381 accelerates the flow of the high-heat-conductivity liquid medium in the heating box 38, so that the geothermal energy is rapidly transferred to the second evaporator 39 through the high-heat-conductivity liquid medium.
And a heat insulation pipe 4 used for wrapping the refrigerant pipeline is arranged between the heat collection box 38 and the heat pump machine box body 1, so that the refrigerant pipeline is prevented from being frozen.
Three conducting positions of the first three-way valve 354 and the second three-way valve 355 are respectively provided with an electromagnetic valve, so that the on-off of the first evaporator 34 and the second evaporator 39 can be flexibly controlled.
The working principle of the invention is as follows: firstly, opening a plug 382 on a heating box 38, injecting a high-heat-conductivity liquid medium into the heating box 38, then closing the plug 382, respectively connecting an inlet end and an outlet end of a second evaporator 39 with an inlet end of a first three-way valve 354 and an outlet end of a second three-way valve 355 through refrigerant pipelines, and wrapping a heat-insulating pipe 4 by the refrigerant pipeline between the heating box 38 and a heat pump machine box body 1;
then excavating a foundation pit with the depth of 5-10m on the designated ground, placing the heat collecting box 38 at the bottom of the foundation pit, burying the heat collecting box 38, filling and leveling the foundation pit, and installing the heat pump machine box body 1 above the foundation pit;
then, a cold water source needing to be heated is led in the water inlet pipe 51 of the water tank 52 through a pipeline and led out through the water outlet pipe 511, air needing to be heated is led in the air outlet pipe 541 of the water tank 52 through a pipeline and led out through the air outlet pipe 541, and the preparation work is finished;
when the heat pump machine is used in summer, the air environment outside the heat pump machine box body 1 is hot, the compressor 32 and the fan three 353 are electrified, the three-way valve one 354 and the three-way valve two 355 both close the electromagnetic valve of the refrigerant pipeline connected with the evaporator two 39, and meanwhile, the electromagnetic valves of the other two inlets and outlets of the three-way valve one 354 and the three-way valve two 355 are opened;
at this time, the first evaporator 34 absorbs heat of outside air and transmits the heat to the compressor 32 through the refrigerant pipeline, the compressor 32 collects the heat of the refrigerant pipeline and transmits the heat to the condenser 31, the condenser 31 heats a cold water source in the water tank 52 into hot water, and the hot water is discharged through the water outlet pipe 511; the air to be heated and the hot water in the water tank 52 are heat-exchanged into hot air, and the hot air is discharged through the air outlet pipe 541;
when the heat pump box is used in winter, the air environment outside the heat pump box body 1 is cold, the temperature of the bottom of a foundation pit is high, the compressor 32 is powered on, the fan III 353 is powered off, the electromagnetic valves of the refrigerant pipelines connected with the evaporator I34 are closed by the three-way valve I354 and the three-way valve II 355, and meanwhile, the electromagnetic valves of the other two inlets and outlets of the three-way valve I354 and the three-way valve II 355 are opened;
the heat at the bottom of the foundation pit is transferred to the high-heat-conduction liquid medium in the heating box 38 through the heating box 38, the electric turbine 381 is electrified to accelerate the flow of the high-heat-conduction liquid medium, and the heat of the high-heat-conduction liquid medium is finally transferred to the second evaporator 39;
at this time, the second evaporator 39 absorbs heat of the high heat-conducting liquid medium and transmits the heat to the compressor 32 through the refrigerant pipeline, the compressor 32 collects the heat of the refrigerant pipeline and transmits the heat to the condenser 31, the condenser 31 heats the cold water source in the water tank 52 into hot water, and the hot water is discharged through the water outlet pipe 511; the air to be heated and the hot water in the water tank 52 are heat-exchanged into hot air, and the hot air is discharged through the air outlet pipe 541;
when the hot water temperature in the water tank 52 is too high, temperature sensor 24 receives temperature value T in the water tank 52 and transmits to the singlechip, the singlechip compares T with the inside preset temperature value T1 of singlechip, when T > T1, the circular telegram of singlechip control fan one 21 and fan two 23, the fin 22 carries the temperature in the water tank 52 and carries out the forced air cooling through fan two 23, through fan one 21 heat discharge heat pump machine box 1 on the fin 22, when T < T1, the circular telegram of singlechip control fan one 21 and fan two 23, prevent that the water temperature is too high in the water tank 52 from causing the leakage hidden danger.
In addition, the invention provides a using method of the double-source high-temperature heat pump unit, which comprises the following steps:
step S1, opening a plug 382 on the heating box 38, injecting a high-heat-conductivity liquid medium, closing the plug 382, respectively connecting an inlet end and an outlet end of a second evaporator 39 with an inlet end of a first three-way valve 354 and an outlet end of a second three-way valve 355 through refrigerant pipelines, and wrapping a heat-insulating pipe 4 by the refrigerant pipeline between the heating box 38 and the heat pump machine box body 1;
step S1-1, excavating a foundation pit with the depth of 5-10m on the designated ground, placing the heating box 38 at the bottom of the foundation pit and burying the foundation pit, and installing the heat pump machine box body 1 above the foundation pit;
s1-2, introducing a cold water source to be heated into a water inlet pipe 51 of a water tank 52 through a pipeline, and introducing the cold water source to be heated through a water outlet pipe 511, introducing air to be heated into a gas outlet pipe 541 of the water tank 52 through a pipeline, and introducing the air to be heated through the gas outlet pipe 541;
s2, when the air environment outside the heat pump box body 1 is hot, the compressor 32 and the fan III 353 are electrified, the three-way valve I354 and the three-way valve II 355 both close the electromagnetic valve of the refrigerant pipeline connected with the evaporator II 39, and the electromagnetic valves of the other two inlets and outlets of the three-way valve I354 and the three-way valve II 355 are opened;
s2-1, the first evaporator 34 absorbs heat of outside air and transmits the heat to the compressor 32 through a refrigerant pipeline, the compressor 32 collects the heat of the refrigerant pipeline and transmits the heat to the condenser 31, the condenser 31 heats a cold water source in the water tank 52 into hot water, and the hot water is discharged through a water outlet pipe 511;
step S2-2, the air to be heated and the hot water in the water tank 52 are subjected to heat exchange to form hot air, and the hot air is discharged through an air outlet pipe 541;
s3, when the air environment outside the heat pump box body 1 is cold and the temperature of the bottom of the foundation pit is high, the compressor 32 is powered on, the fan III 353 is powered off, the electromagnetic valves of the refrigerant pipeline connected with the evaporator I34 are closed by the three-way valve I354 and the three-way valve II 355, and the electromagnetic valves of the other two inlets and outlets of the three-way valve I354 and the three-way valve II 355 are opened;
step S3-1, transferring heat at the bottom of the foundation pit to a high-heat-conductivity liquid medium in the heating box 38 through the heating box 38, electrifying the electric turbine 381 to accelerate the flow of the high-heat-conductivity liquid medium, and finally transferring the heat of the high-heat-conductivity liquid medium to the second evaporator 39;
step S3-2, the second evaporator 39 absorbs heat of the high-heat-conduction liquid medium and transmits the heat to the compressor 32 through the refrigerant pipeline, the compressor 32 collects the heat of the refrigerant pipeline and transmits the heat to the condenser 31, the condenser 31 heats a cold water source in the water tank 52 into hot water, and the hot water is discharged through the water outlet pipe 511;
and step S3-3, exchanging heat between the air to be heated and the hot water in the water tank 52 to form hot air, and discharging the hot air through the air outlet pipe 541.
And S4, when the temperature of hot water in the water tank 52 is too high, the temperature sensor 24 receives the temperature value T in the water tank 52 and transmits the temperature value T to the single chip microcomputer, the single chip microcomputer compares the temperature T with a preset temperature value T1 in the single chip microcomputer, when the temperature T is larger than the temperature T1, the single chip microcomputer controls the first fan 21 and the second fan 23 to be electrified, the cooling fins 22 carry the temperature in the water tank 52 and are cooled by the second fan 23, heat on the cooling fins 22 is discharged out of the heat pump machine box body 1 through the first fan 21, and when the temperature T is smaller than the temperature T1, the single chip microcomputer controls the first fan 21 and the second fan 23 to be powered off.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (10)
1. The utility model provides a dual-source high temperature heat pump unit, includes heat pump machine box (1), its characterized in that: the heat pump machine box body (1) is internally provided with a dual-source heat collecting mechanism (3) for collecting air energy and geothermal energy, the heat pump machine box body (1) is internally provided with a dual-source heat outlet mechanism (5) for distributing and leading out collected heat sources, and the heat pump machine box body (1) is also internally provided with a heat radiating mechanism (2) for carrying out overheat protection on the collected heat energy;
the dual-source heat collection mechanism (3) comprises a compressor (32), a condenser (31), a liquid storage tank (33), a filter (37) and an expansion valve (36) which are arranged in the heat pump machine box body (1), wherein the compressor (32), the condenser (31), the liquid storage tank (33), the filter (37) and the expansion valve (36) are sequentially connected in series through refrigerant pipelines, the leading-in end of the compressor (32) is connected with a first three-way valve (354) through a refrigerant pipeline, two leading-in ends of the first three-way valve (354) are sequentially connected with a first evaporator (34) and a second evaporator (39) through refrigerant pipelines, the leading-out end of the expansion valve (36) is connected with a second three-way valve (355) through a refrigerant pipeline, and two leading-out ends of the second three-way valve (355) are connected with the leading-in ends of the first evaporator (34) and the second evaporator (39) through refrigerant pipelines;
the double-source heat outlet mechanism (5) comprises a water tank (52), the water tank (52) is wrapped outside the condenser (31), and a capillary heat exchange tube (53) is arranged inside the water tank (52);
the heat dissipation mechanism (2) comprises a cooling fin (22), a temperature sensor (24), a first fan (21) and a second fan (23), wherein the cooling fin (22) penetrates through the water tank (52), the second fan (23) is arranged outside the cooling fin (22), the temperature sensor (24) is arranged on the inner wall of the water tank (52), and the first fan (21) is arranged at the top of the heat pump machine box body (1).
2. The dual-source high-temperature heat pump unit according to claim 1, characterized in that: the fan control device is characterized by further comprising a heat dissipation control mechanism, wherein the heat dissipation control mechanism comprises a single chip microcomputer, the input end of the single chip microcomputer is electrically connected with the temperature sensor (24), and the output end of the single chip microcomputer is electrically connected with the first fan (21) and the second fan (23).
3. The dual-source high-temperature heat pump unit according to claim 1, characterized in that: the heat preservation foam is wrapped outside the water tank (52), a first pressure limiting valve (383) penetrates through the top of the water tank (52), a water inlet pipe (51) is arranged at the leading-in end of the water tank (52), a water outlet pipe (511) is arranged at the leading-out end of the water tank (52), and the water inlet pipe (51) and the water outlet pipe (511) penetrate through the water tank (52) and the heat pump machine box body (1).
4. The dual-source high-temperature heat pump unit according to claim 1, characterized in that: capillary heat exchange tube (53) material is high heat conduction metal material, capillary heat exchange tube (53) winding is in the outside of condenser (31), and capillary heat exchange tube (53) set up inside water tank (52), the leading-in end of capillary heat exchange tube (53) is provided with intake pipe (54), the derivation end of capillary heat exchange tube (53) is provided with outlet duct (541), water tank (52) and heat pump machine box (1) are all run through to intake pipe (54) and outlet duct (541).
5. The dual-source high-temperature heat pump unit according to claim 1, characterized in that: one end of the heat pump machine box body (1) is provided with an air inlet grid (101), an air box (35) is arranged outside the heat pump machine box body (1), the first evaporator (34) is arranged inside the air box (35), an air inlet (351) and an air outlet (352) are formed in the air box (35) in a penetrating mode, and a third fan (353) is arranged at the air outlet (352).
6. The dual-source high-temperature heat pump unit according to claim 1, characterized in that: the outside parcel of evaporimeter two (39) has heating case (38), the marginal part of heating case (38) is provided with heat transfer fin, the inside of heating case (38) is provided with electric turbine (381) with higher speed heat conduction rate, the material of heating case (38) is high heat conduction metal material, it is provided with voltage limiting valve two (521) to run through on heating case (38), it is provided with end cap (382) to run through on heating case (38).
7. The dual-source high-temperature heat pump unit according to claim 6, characterized in that: and a heat preservation pipe (4) used for wrapping a refrigerant pipeline is arranged between the heat collection box (38) and the heat pump machine box body (1).
8. The dual-source high-temperature heat pump unit according to claim 1, characterized in that: and electromagnetic valves are arranged at three conducting positions of the first three-way valve (354) and the second three-way valve (355).
9. The use method of the dual-source high-temperature heat pump unit according to any one of claims 1 to 8, characterized by comprising the following steps:
s1, opening a plug (382) on a heating box (38), injecting a high-heat-conductivity liquid medium, closing the plug (382), respectively connecting an inlet end and an outlet end of a second evaporator (39) with an inlet end of a first three-way valve (354) and an outlet end of a second three-way valve (355) through refrigerant pipelines, and wrapping a heat-insulating pipe (4) by the refrigerant pipeline between the heating box (38) and a heat pump box body (1);
s1-1, excavating a foundation pit with the depth of 5-10m on the designated ground, placing a heat collection box (38) at the bottom of the foundation pit and burying the foundation pit, and installing a heat pump machine box body (1) above the foundation pit;
s1-2, introducing a cold water source to be heated into a water inlet pipe (51) of a water tank (52) through a pipeline, and leading out the cold water source through a water outlet pipe (511), introducing air to be heated into an air outlet pipe (541) of the water tank (52) through a pipeline, and leading out the air outlet pipe (541);
s2, when the air environment outside the heat pump machine box body (1) is hot, the compressor (32) and the fan III (353) are powered on, the three-way valve I (354) and the three-way valve II (355) both close the electromagnetic valve of a refrigerant pipeline connected with the evaporator II (39), and the electromagnetic valves of other two inlets and outlets of the three-way valve I (354) and the three-way valve II (355) are opened;
s2-1, the first evaporator (34) absorbs heat of outside air and transmits the heat to the compressor (32) through a refrigerant pipeline, the compressor (32) collects the heat of the refrigerant pipeline and transmits the heat to the condenser (31), the condenser (31) heats a cold water source in the water tank (52) into hot water, and the hot water is discharged through a water outlet pipe (511);
s2-2, exchanging heat between the air to be heated and hot water in the water tank (52) to form hot air, and discharging the hot air through the air outlet pipe (541);
s3, when the air environment outside the heat pump machine box body (1) is cold and the temperature of the bottom of a foundation pit is high, the compressor (32) is powered on, the fan III (353) is powered off, the three-way valve I (354) and the three-way valve II (355) both close the electromagnetic valve of a refrigerant pipeline connected with the evaporator I (34), and the electromagnetic valves of the other two inlets and outlets of the three-way valve I (354) and the three-way valve II (355) are opened;
s3-1, transferring heat at the bottom of the foundation pit to a high-heat-conduction liquid medium in a heating box (38) through the heating box (38), electrifying an electric turbine (381), accelerating the flow of the high-heat-conduction liquid medium, and finally transferring the heat of the high-heat-conduction liquid medium to a second evaporator (39);
s3-2, absorbing heat of a high-heat-conductivity liquid medium by the second evaporator (39), transmitting the heat to the compressor (32) through a refrigerant pipeline, gathering the heat of the refrigerant pipeline by the compressor (32), transmitting the heat to the condenser (31), heating a cold water source in the water tank (52) into hot water by the condenser (31), and discharging the hot water through the water outlet pipe (511);
and S3-3, exchanging heat between the air to be heated and the hot water in the water tank (52) to form hot air, and discharging the hot air through the air outlet pipe (541).
10. The use method of the double-source high-temperature heat pump unit according to claim 9, characterized in that: when the temperature of hot water in the water tank (52) is too high, the temperature sensor (24) receives a temperature value T in the water tank (52) and transmits the temperature value T to the single chip microcomputer, the single chip microcomputer compares the temperature value T with a temperature value T1 preset in the single chip microcomputer, when the temperature value T is larger than the temperature value T1, the single chip microcomputer controls the first fan (21) and the second fan (23) to be electrified, the cooling fins (22) carry the temperature in the water tank (52) and are cooled by the second fan (23), and heat on the cooling fins (22) is discharged out of the heat pump machine box body (1) through the first fan (21); and when T is less than T1, the single chip microcomputer controls the first fan (21) and the second fan (23) to be powered off.
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Application publication date: 20221011 |