CN115289710B - Self-cleaning heat pump water heater unit adopting transcritical carbon dioxide circulation - Google Patents
Self-cleaning heat pump water heater unit adopting transcritical carbon dioxide circulation Download PDFInfo
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- CN115289710B CN115289710B CN202211064114.3A CN202211064114A CN115289710B CN 115289710 B CN115289710 B CN 115289710B CN 202211064114 A CN202211064114 A CN 202211064114A CN 115289710 B CN115289710 B CN 115289710B
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- seat
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 84
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 33
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 33
- 238000004140 cleaning Methods 0.000 title claims abstract description 24
- 238000001704 evaporation Methods 0.000 claims abstract description 58
- 238000005057 refrigeration Methods 0.000 claims abstract description 46
- 238000010257 thawing Methods 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims description 43
- 230000008020 evaporation Effects 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000012528 membrane Substances 0.000 claims description 6
- 239000000428 dust Substances 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 description 12
- 230000017525 heat dissipation Effects 0.000 description 11
- 239000003507 refrigerant Substances 0.000 description 7
- 238000010992 reflux Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
-
- 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
Abstract
The invention discloses a self-cleaning heat pump water heater unit adopting transcritical carbon dioxide circulation, and relates to the technical field of carbon dioxide heat pumps. According to the invention, with the operation of the pneumatic assembly, negative pressure is generated in the refrigeration box, hot water in the water tank is sprayed out through the defrosting assembly through the pressure difference, so that the surface of the evaporating pipe is washed, the surface of the evaporating pipe is washed through high-temperature water, and dust on the surface of the evaporating pipe is washed while defrosting the surface of the evaporating pipe is realized.
Description
Technical Field
The invention relates to the technical field of carbon dioxide heat pumps, in particular to a self-cleaning heat pump water heater unit adopting transcritical carbon dioxide circulation.
Background
The working principle of the heat pump is a mechanical device for forcing heat to flow from a low-temperature object to a high-temperature object in a reverse circulation mode, and the heat pump water heater unit is a unit for heating water by utilizing the principle of a heat pump, and the main working principle is as follows: the method comprises the steps of compressing a gaseous refrigerant into a high-temperature and high-pressure supercritical state by using a compressor, conveying the refrigerant in the state to a gas cooler, placing the gas cooler in a water tank, exchanging heat with cold water in the water tank, heating the cold water in the water tank, cooling the refrigerant, completely converting the refrigerant into a liquid state, conveying the liquid refrigerant to an evaporator, absorbing heat in the external environment by the evaporator, and providing a cold source for other buildings needing refrigeration.
The utility model patent of China with publication number CN208504740U discloses a heat pump water heater unit, which comprises a water heater unit body, the water heater unit body comprises a heat pump box, the top of the heat pump box is provided with a support, a fan is arranged on the support, the bottom of the heat pump box is provided with a first supporting leg, one side of the heat pump box is provided with a control button, a ventilation plate is arranged on the heat pump box, a compressor is arranged in the heat pump box, a first connecting pipe is arranged on the compressor, an evaporator is connected with the compressor through the first connecting pipe, a third connecting pipe is arranged on the evaporator, an expansion valve is arranged on the third connecting pipe, a cold heat exchanger is connected with the evaporator through the third connecting pipe, a second connecting pipe is arranged on the cold heat exchanger, the compressor is connected with the cold heat exchanger through the second connecting pipe, and the cold heat exchanger is provided with heating.
In this technical scheme, there are following disadvantages:
In this technical scheme, refrigerant changes gaseous in-process from liquid to vapor in the evaporimeter, absorb a large amount of heat for evaporimeter surface temperature is lower, along with the increase of live time, can lead to the evaporimeter surface frosting, influence and external heat exchange efficiency, and among the prior art, adopt the cross valve to carry high temperature refrigerant to the evaporimeter inside, defrosting work, this kind of defrosting mode is when defrosting, can't clear up the dust on evaporimeter surface simultaneously, the dust in the air is when passing through on the evaporimeter surface, also can cause evaporimeter and external heat exchange efficiency to reduce, and the dust adheres to on moist evaporimeter surface, can breeds a lot of bacteria, if get into indoor during the ventilation, will influence indoor air's quality, endanger indoor activity personnel's health.
Disclosure of Invention
The invention aims to provide a self-cleaning heat pump water heater unit adopting transcritical carbon dioxide circulation, which solves the technical problem that dust on the surface of an evaporator cannot be cleaned in the process of defrosting the surface of the evaporator in the prior art.
The invention provides a self-cleaning heat pump water heater unit adopting transcritical carbon dioxide circulation, which comprises a base, wherein the outer wall of the top of the base is fixedly connected with a box body and a water tank, the inner wall of the bottom of the box body is fixedly connected with a compressor, the input port of the compressor is fixedly connected with a backflow component, the output port of the compressor is fixedly connected with an output component, the output component penetrates through the water tank, the outer wall of one side of the box body is fixedly connected with an air supply component for radiating heat of the compressor, the outer wall of the top of the base is fixedly connected with a refrigerating component communicated with the air supply component, the refrigerating component comprises a refrigerating box fixedly connected with the outer wall of the top of the base, the inner wall of the top of the refrigerating box is fixedly connected with an evaporating component for refrigerating, the evaporating component is communicated with the output component and the backflow component, the inner wall of one side of the refrigerating box is fixedly connected with a defrosting component for defrosting the surface of the evaporating component, the defrosting component is communicated with the water tank, the inner wall of the air supply component is fixedly connected with a sealing component for sealing the refrigerating box and the air supply component, the outer wall of the top of the box is fixedly connected with a round hole, the inner wall of the round hole is fixedly connected with a cleaning component for cleaning the evaporating component, the refrigerating box is communicated with the air inlet sealing component is fixedly connected with the sealing hole, and the sealing hole is used for sealing the sealing hole is arranged on one side of the air inlet hole.
Preferably, the evaporation assembly comprises a third connecting seat fixedly connected with the inner wall of the top of the refrigeration box, a fourth connecting seat is fixedly connected with the inner wall of the bottom of the refrigeration box, a plurality of evaporation pipes distributed at equal intervals are fixedly connected with the outer wall of the bottom of the third connecting seat, and all the evaporation pipes are communicated with the fourth connecting seat.
Preferably, the cleaning component comprises a sleeve fixedly connected in the round hole, a first hollow rod is connected in the sleeve in a sliding manner, a second hollow rod is connected in the first hollow rod in a sliding manner, a sealing ring is fixedly connected at one end of the first hollow rod and one end of the second hollow rod, a connecting block is fixedly connected at the bottom end of the second hollow rod, a through hole is formed in the top of the connecting block, a third electromagnetic valve communicated with the second hollow rod is fixedly connected in the through hole, a counterweight seat is fixedly connected on the outer wall of one side of the connecting block, an evaporating pipe penetrates through the outer wall of the bottom of the counterweight seat, and a sponge ring is fixedly connected at the outer wall of the bottom of the counterweight seat, which is close to the evaporating pipe.
Preferably, the air supply assembly comprises a square tube fixedly connected to the outer wall of one side of the box body, the inner wall of the square tube is fixedly connected with a fixing plate which is horizontally arranged, and the outer wall of one side of the fixing plate is fixedly connected with two fans.
Preferably, the sealing assembly comprises a plurality of sealing seats fixedly connected to the inner wall of the square tube and distributed at equal intervals, a rubber film is fixedly connected to the inner wall of the sealing seat, a third connecting pipe is fixedly connected to the outer wall of the top of the sealing seat, the third connecting pipe penetrates through the outer wall of the top of the square tube, the top of the third connecting pipe is fixedly connected with the same second connecting seat, and a second electromagnetic valve is fixedly connected to the outer wall of the top of the second connecting seat.
Preferably, the pneumatic assembly comprises an air pump box fixedly connected to the outer wall of the top of the box body, an air pump is fixedly connected to the inner wall of the bottom of the air pump box, an air delivery outlet of the air pump is fixedly connected with an air delivery pipe communicated with the second connecting seat, and an air suction pipe communicated with the sleeve is fixedly connected to an inlet of the air pump.
Preferably, the defrosting assembly comprises a first connecting seat fixedly connected with the top of the inner wall of one side of the refrigeration box, a spray head is fixedly connected to the outer wall of one side of the first connecting seat close to each evaporation tube, a water pipe is fixedly connected to the outer wall of one side of the first connecting seat and penetrates through the inner wall of one side of the water tank, a self-operated regulating valve is fixedly connected to one end of the water pipe, which is positioned in the water tank, a fixing hole is formed in the outer wall of the bottom of the refrigeration box, and a first electromagnetic valve is fixedly connected in the fixing hole.
Preferably, the output assembly comprises a second connecting pipe fixedly connected to the output port of the compressor, the second connecting pipe penetrates through the inner wall of the bottom of the water tank, the second connecting pipe is positioned at one end fixedly connected with a coil pipe inside the water tank, one end of the coil pipe is fixedly connected with an output pipe, the output pipe penetrates through the outer wall of one side of the water tank, the arc-shaped outer wall of the output pipe is fixedly connected with a one-way throttle valve, and the outer wall of one side of the one-way throttle valve is fixedly connected with a shunt pipe communicated with a fourth connecting seat.
Preferably, the reflux assembly comprises a reflux pipe fixedly connected with the input port of the compressor, a heat preservation pipe is fixedly connected with the outer wall of one side of the refrigeration box, a communicating seat communicated with the reflux pipe is fixedly connected with the outer wall of the bottom of the heat preservation pipe, two symmetrically arranged spiral bent pipes are fixedly connected with the outer wall of the top of the communicating seat, one of the spiral bent pipes is fixedly connected with an input pipe, and the other spiral bent pipe is fixedly connected with a first connecting pipe communicated with a third connecting seat.
Preferably, the sealing plug assembly comprises an electric telescopic rod fixedly connected with the outer wall of one side of the refrigeration box, the output end of the electric telescopic rod is fixedly connected with a transmission plate, the outer wall of one side of the transmission plate is fixedly connected with two connecting frames, the two connecting frames penetrate through the outer wall of one side of the refrigeration box, the two outer wall of one side of the connecting frames is fixedly connected with a plurality of sealing blocks distributed at equal intervals, and the sealing blocks are matched with the air inlet holes.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the invention, when defrosting operation of the surface of the evaporating pipe is performed, the air inlet hole on the refrigerating box is sealed through the sealing plug assembly, the cleaning assembly is driven to ascend through the pneumatic assembly, the sealing assembly is driven to seal the square pipe, after the square pipe is completely sealed through the sealing assembly, the inside of the refrigerating box is in a sealed environment, negative pressure is generated in the refrigerating box along with the operation of the pneumatic assembly, hot water in the water tank is sprayed out through the defrosting assembly through pressure difference, the surface of the evaporating pipe is washed through high-temperature water, and dust on the surface of the evaporating pipe is washed while defrosting of the surface of the evaporating pipe is realized.
(2) According to the invention, when defrosting operation on the surface of the evaporating pipe is realized through the arranged cleaning component and the pneumatic component, the third electromagnetic valve is firstly closed, so that the air pressure in the sleeve, the first hollow rod and the second hollow rod is reduced, the second hollow rod is contracted into the first hollow rod, the first hollow rod is contracted into the sleeve again, the counterweight seat drives the sponge ring to rise to the third connecting seat, after the defrosting component is finished, the switch of the second electromagnetic valve is opened, the second connecting seat is communicated with the outside, the rubber film is restored, the refrigerating box is communicated with the outside, the switch of the air pump is closed, the outside air enters the sleeve through the air pump and the air extraction pipe, the sponge ring is driven to move along the surface of the evaporating pipe under the action of the counterweight seat and gravity, the sponge ring on the counterweight seat is extruded by the counterweight seat and the fourth connecting seat after the sponge ring contacts with the fourth connecting seat, and the moisture in the sponge ring is extruded, and the work can be started again.
(3) According to the invention, through the air supply assembly and the first electromagnetic valve, water generated by flushing the defrosting assembly and water extruded from the sponge ring can be discharged through the first electromagnetic valve on the refrigeration box, and the water discharged from the refrigeration box carries away surplus heat after defrosting, so that when the compressor is subjected to heat dissipation again, the heat brought by defrosting does not bear the heat dissipation of the compressor, and compared with the defrosting operation of a high-temperature heat medium through the evaporating pipe, the heat dissipation pressure of the compressor is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the structure of the air pump casing, the air suction pipe and the air delivery pipe of the present invention;
FIG. 3 is a schematic view of the structure of the present invention shown in FIG. 2 at a partially enlarged scale;
FIG. 4 is a schematic cross-sectional view of the water tank of the present invention;
FIG. 5 is a schematic view of a square tube, a fixed plate and a fan according to the present invention;
FIG. 6 is a schematic cross-sectional view of the insulating tube of the present invention;
FIG. 7 is a schematic view of the structure of the air delivery pipe and the second connecting seat of the present invention;
FIG. 8 is a schematic view of the explosion structure of the square tube, seal housing and second connector housing of the present invention;
FIG. 9 is a schematic view of the structure of the motorized telescopic rod and drive plate of the present invention;
FIG. 10 is a schematic view of the third connecting seat, the fourth connecting seat and the evaporating pipe according to the present invention;
fig. 11 is a schematic view of the explosion structure of the connection block and the third solenoid valve of the present invention.
Reference numerals:
1. A base; 101. a case; 102. a water tank; 2. a pneumatic assembly; 201. an air pump box; 202. an exhaust pipe; 203. a gas pipe; 204. a sleeve; 205. a first hollow rod; 206. a second hollow rod; 3. a refrigeration assembly; 301. a refrigeration box; 302. a connecting frame; 303. a sealing block; 304. a drive plate; 305. an electric telescopic rod; 306. a first electromagnetic valve; 4. a reflow assembly; 401. a heat preservation pipe; 402. a communication seat; 403. a return pipe; 404. an input tube; 405. a first connection pipe; 406. a spiral bent pipe; 5. an output assembly; 501. an output pipe; 502. a one-way throttle valve; 503. a shunt; 504. a coiled pipe; 505. a second connection pipe; 6. a defrosting assembly; 601. a water pipe; 602. a self-operated regulating valve; 603. a first connection base; 604. a spray head; 7. a seal assembly; 701. a second connecting seat; 702. a second electromagnetic valve; 703. a sealing seat; 704. a rubber film; 705. a third connection pipe; 8. an air supply assembly; 801. a fixing plate; 802. a fan; 803. square tube; 9. an evaporation assembly; 901. a third connecting seat; 902. a fourth connecting seat; 903. an evaporation tube; 904. a counterweight seat; 905. a connecting block; 906. a third electromagnetic valve; 907. a sponge ring.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.
The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 to 11, the embodiment of the invention provides a self-cleaning heat pump water heater unit adopting transcritical carbon dioxide circulation, which comprises a base 1, wherein the outer wall of the top of the base 1 is fixedly connected with a box body 101 and a water tank 102, the inner wall of the bottom of the box body 101 is fixedly connected with a compressor, the input port of the compressor is fixedly connected with a backflow component 4, the output port of the compressor is fixedly connected with an output component 5, the output component 5 penetrates through the water tank 102, the outer wall of one side of the box body 101 is fixedly connected with an air supply component 8 for heat dissipation of the compressor, the outer wall of the top of the base 1 is fixedly connected with a refrigerating component 3 communicated with the air supply component 8, the refrigerating component 3 comprises a refrigerating box 301 fixedly connected with the outer wall of the top of the base 1, the inner wall of the top of the refrigerating box 301 is fixedly connected with an evaporation component 9 for refrigeration, and the evaporation component 9 is communicated with the output component 5 and the backflow component 4, the evaporation component 9 comprises a third connecting seat 901 fixedly connected with the inner wall of the top of the refrigeration box 301, a fourth connecting seat 902 is fixedly connected with the inner wall of the bottom of the refrigeration box 301, a plurality of evaporation pipes 903 distributed equidistantly are fixedly connected with the outer wall of the bottom of the third connecting seat 901, all the evaporation pipes 903 are communicated with the fourth connecting seat 902, liquid carbon dioxide entering the fourth connecting seat 902 is evaporated into gaseous carbon dioxide to absorb a large amount of heat, under the action of a fan 802, the air flows, when passing through the evaporation pipes 903, the air is cooled, the low-temperature air is conveyed into the box 101 through square pipes 803, the compressor in the box 101 dissipates heat, the heat dissipation work of the compressor is not needed by other heat dissipation devices, unnecessary energy consumption is reduced, a defrosting component 6 for defrosting the surface of the evaporation component 9 is fixedly connected with the top of the inner wall of one side of the refrigeration box 301, and defrosting subassembly 6 and water tank 102 intercommunication, air supply subassembly 8 internal fixation has the sealing component 7 that is used for sealed refrigeration case 301 and air supply subassembly 8, the round hole has been seted up to refrigeration case 301 top outer wall, fixedly connected with is used for cleaning the clean subassembly of evaporation subassembly 9 in the round hole, box 101 top outer wall fixedly connected with is used for driving the pneumatic subassembly 2 of clean subassembly and sealing component 7 work, a plurality of equidistance distribution's fresh air inlet has been seted up to refrigeration case 301 one side outer wall, refrigeration case 301 one side outer wall fixedly connected with is used for blocking up the sealing plug subassembly of fresh air inlet.
Further, the cleaning component comprises a sleeve 204 fixedly connected in the round hole, a first hollow rod 205 is connected in the sleeve 204 in a sliding manner, a second hollow rod 206 is connected in the first hollow rod 205 in a sliding manner, a sealing ring is fixedly connected to one end of each of the first hollow rod 205 and one end of each of the second hollow rods 206, a connecting block 905 is fixedly connected to the bottom end of each of the second hollow rods 206, a through hole is formed in the top of each of the connecting blocks 905, a third electromagnetic valve 906 communicated with each of the second hollow rods 206 is fixedly connected to one side outer wall of each of the connecting blocks 905, a counterweight seat 904 is fixedly connected to one side outer wall of each of the connecting blocks 905, an evaporating pipe 903 penetrates through the outer wall of the bottom of each of the counterweight seats 904, a sponge ring 907 is fixedly connected to the position, close to the evaporating pipe 903, a switch of the air pump is closed, external air enters the sleeve 204 through the air pump and the air suction pipe 202, the sponge ring 907 is driven to move along the surface of the evaporating pipe 903 under the action of the counterweight seat 904 and the gravity, moisture on the surface of the evaporating pipe 903 is absorbed, and after the sponge ring 907 contacts with the fourth connecting seat 902, the sponge ring 907, and the moisture in the sponge ring is extruded by the counterweight seat 904 and the fourth connecting seat 902.
The air supply assembly 8 comprises a square pipe 803 fixedly connected to the outer wall of one side of the box 101, a fixing plate 801 horizontally arranged is fixedly connected to the inner wall of the square pipe 803, and two fans 802 are fixedly connected to the outer wall of one side of the fixing plate 801.
Further, pneumatic assembly 2 includes air pump case 201 of fixed connection at box 101 top outer wall, air pump case 201 bottom inner wall fixedly connected with air pump, the delivery outlet fixedly connected with of air pump and the gas-supply line 203 of second connecting seat 701 intercommunication, the input port fixedly connected with of air pump and exhaust tube 202 of sleeve 204 intercommunication, seal assembly 7 includes a plurality of equidistance distribution's of fixed connection at square tube 803 inner wall sealing seat 703, sealing seat 703 a relative inner wall fixedly connected with rubber membrane 704, the equal fixedly connected with third connecting pipe 705 of sealing seat 703 top outer wall, and third connecting pipe 705 all runs through square tube 803 top outer wall, same second connecting seat 701 of third connecting pipe 705 top fixedly connected with, second connecting seat 701 top outer wall fixedly connected with second solenoid valve 702, the air pump carries the gaseous that is taken out to sealing seat 703 in, make the rubber membrane take place deformation, through a plurality of rubber membrane 704 deformation and mutual extrusion, sealed refrigeration case 301 and square tube 803.
Further, the defrosting component 6 comprises a first connecting seat 603 fixedly connected to the top of the inner wall of one side of the refrigeration box 301, a spray head 604 is fixedly connected to the outer wall of one side of the first connecting seat 603 close to each evaporation tube 903, a water pipe 601 is fixedly connected to the outer wall of one side of the first connecting seat 603, the water pipe 601 penetrates through the inner wall of one side of the water box 102, one end of the water pipe 601, which is positioned in the water box 102, is fixedly connected with a self-operated regulating valve 602, a fixed hole is formed in the outer wall of the bottom of the refrigeration box 301, a first electromagnetic valve 306 is fixedly connected to the inner wall of the fixed hole, when the pressure difference between the refrigeration box 301 and the water box 102 is large, hot water in the water box 102 enters the water pipe 601 through the self-operated regulating valve 602, and then is sprayed out through a spray head 604 on the first connecting seat 603, so that the surface of the evaporation tubes 903 is washed, in a supercritical state, the air discharged from the compressor is high in exhaust temperature, the heating effect is good, the obtained hot water temperature is high, the defrosting effect is better, the surface of the evaporation tubes 903 is washed by the high-temperature water, and dust on the surface of the evaporation tubes 903 is washed.
Further, the output assembly 5 includes a second connecting pipe 505 fixedly connected to the output port of the compressor, and the second connecting pipe 505 penetrates through the inner wall of the bottom of the water tank 102, the second connecting pipe 505 is fixedly connected with a coil pipe 504 at one end inside the water tank 102, one end of the coil pipe 504 is fixedly connected with an output pipe 501, and the output pipe 501 penetrates through one side outer wall of the water tank 102, an arc-shaped outer wall of the output pipe 501 is fixedly connected with a one-way throttle valve 502, one side outer wall of the one-way throttle valve 502 is fixedly connected with a split pipe 503 communicated with the fourth connecting seat 902, part of low-temperature liquid carbon dioxide is input into the fourth connecting seat 902 through the one-way throttle valve 502 and the split pipe 503, and the other part of low-temperature liquid carbon dioxide is conveyed into other evaporators.
Further, the reflux assembly 4 includes a reflux pipe 403 fixedly connected to the input port of the compressor, an insulation pipe 401 is fixedly connected to an outer wall of one side of the refrigeration box 301, a communication seat 402 communicated with the reflux pipe 403 is fixedly connected to an outer wall of the bottom of the insulation pipe 401, two symmetrical spiral elbows 406 are fixedly connected to an outer wall of the top of the communication seat 402, an input pipe 404 is fixedly connected to the top end of one spiral elbows 406, and a first connecting pipe 405 communicated with a third connecting seat 901 is fixedly connected to the top end of the other spiral elbows 406.
Further, the sealing plug assembly comprises an electric telescopic rod 305 fixedly connected with the outer wall of one side of the refrigeration box 301, the output end of the electric telescopic rod 305 is fixedly connected with a transmission plate 304, one side outer wall of the transmission plate 304 is fixedly connected with two connecting frames 302, the two connecting frames 302 penetrate through the outer wall of one side of the refrigeration box 301, the outer wall of one side of the two connecting frames 302 is fixedly connected with a plurality of sealing blocks 303 which are distributed equidistantly, the sealing blocks 303 are matched with air inlets, the switch of the electric telescopic rod 305 is switched on, the electric telescopic rod 305 drives the connecting frames 302 to move through the transmission plate 304, and then the sealing blocks 303 are driven to enter the air inlets on the refrigeration box 301 to seal the air inlets on the refrigeration box 301.
The specific working method is as follows: when in use, the switch of the compressor is switched on, the compressor compresses carbon dioxide into a high-temperature and high-pressure supercritical state when in operation, then the carbon dioxide is conveyed into the coil 504 in the water tank 102 through the second connecting pipe 505, the water in the water tank 102 is heated through heat exchange between the coil 504 and the water in the water tank 102, the carbon dioxide in the gas-liquid coexisting state in the coil 504 is converted into low-temperature liquid carbon dioxide, finally the low-temperature liquid carbon dioxide is output through the output pipe 501, part of the low-temperature liquid carbon dioxide is input into the fourth connecting seat 902 through the one-way throttle valve 502 and the shunt pipe 503, the other part of the low-temperature liquid carbon dioxide is conveyed into other evaporators to provide a cold source for buildings needing refrigeration, the liquid carbon dioxide entering the fourth connecting seat 902 is evaporated into gaseous carbon dioxide to absorb a large amount of heat, the air is caused to flow under the action of the fan 802, external gas enters the refrigeration box 301 through an air inlet hole on the refrigeration box 301, the air flow is cooled when passing through the evaporating pipes 903, low-temperature gas is conveyed into the box 101 through square pipes 803, the heat dissipation of the compressor in the box 101 is carried out, the heat dissipation work of the compressor is not needed to be assisted by other heat dissipation devices, unnecessary energy consumption is reduced, evaporated gaseous carbon dioxide is input into one of the spiral elbows 406 through the third connecting seat 901 and the first connecting pipe 405, the evaporated gaseous carbon dioxide in other evaporators enters the other spiral elbows 406 through the input pipe 404, the temperature of the gaseous carbon dioxide inside the two spiral elbows 406 is similar, the uneven temperature of the gaseous carbon dioxide entering the compressor is avoided, the surface of the evaporating pipes 903 inevitably frosts along with the increase of the service time, when defrosting work is needed, the switch of the electric telescopic rod 305 is turned on, the electric telescopic rod 305 drives the connecting frame 302 to move through the transmission plate 304, so as to drive the sealing block 303 to enter an air inlet hole on the refrigeration box 301, seal the air inlet hole on the refrigeration box 301, then switch on a switch of an air pump, close a switch of a third electromagnetic valve 906, reduce air pressure in the sleeve 204, the first hollow rod 205 and the second hollow rod 206 when the air pump works, enable the second hollow rod 206 to shrink into the first hollow rod 205, enable the first hollow rod 205 to shrink into the sleeve 204 again, enable the counterweight seat 904 to drive the sponge ring 907 to rise to the third connecting seat 901, enable the air pump to convey the extracted air into the sealing seat 703, enable the rubber membrane 704 to deform, seal the refrigeration box 301 and the square pipe 803 through deformation and mutual extrusion of the plurality of rubber membranes 704, then open the third electromagnetic valve 906, enable negative pressure to be generated in the refrigeration box 301 through the air pump, when the pressure difference between the refrigerating box 301 and the water tank 102 is large, hot water in the water tank 102 enters the water delivery pipe 601 through the self-operated regulating valve 602, then is sprayed out through the spray head 604 on the first connecting seat 603, the surface of the evaporating pipe 903 is washed by high-temperature water, the surface of the evaporating pipe 903 is defrosted, dust on the surface of the evaporating pipe 903 is washed, after the defrosting operation is finished, the switch of the second electromagnetic valve 702 is turned on, the second connecting seat 701 is communicated with the outside, the rubber film 704 returns, the refrigerating box 301 is communicated with the outside, the switch of the air pump is turned off, the outside air enters the sleeve 204 through the air pump and the air extraction pipe 202, under the action of the weight seat 904 and the gravity, the sponge ring 907 is driven to move along the surface of the evaporating pipe 903, the moisture on the surface of the evaporating pipe 903 is adsorbed, after the sponge ring 907 on the weight seat 904 is contacted with the fourth connecting seat 902, the water in the sponge ring 907 is extruded by the counterweight seat 904 and the fourth connecting seat 902, then the switch of the first electromagnetic valve 306 is switched on, the water generated by flushing and the extruded water in the sponge ring 907 are discharged through the first electromagnetic valve 306 on the refrigeration box 301, the water discharged from the refrigeration box 301 takes away the surplus heat after defrosting, and when the compressor is cooled again, the heat brought by defrosting operation does not bear the heat dissipation of the compressor, and compared with the defrosting operation of the high-temperature heating medium through the evaporating pipe 903, the heat dissipation pressure of the compressor is reduced.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (7)
1. The utility model provides an adopt self-cleaning formula heat pump water heater unit of transcritical carbon dioxide circulation, includes base (1), its characterized in that: the utility model discloses a defrosting device, including base (1), air supply assembly (8), air supply assembly (7) and air tank (102) are connected with each other, base (1) top outer wall fixedly connected with box (101) and water tank (102), box (101) bottom inner wall fixedly connected with compressor, the input port fixedly connected with backward flow subassembly (4) of compressor, the delivery outlet fixedly connected with output assembly (5) of compressor, and output assembly (5) run through water tank (102), box (101) one side outer wall fixedly connected with is used for compressor radiating air supply assembly (8), base (1) top outer wall fixedly connected with and air supply assembly (8) intercommunication refrigerating assembly (3), refrigerating assembly (3) include refrigerating box (301) of fixedly connected with at base (1) top outer wall, refrigerating box (301) top inner wall fixedly connected with is used for refrigerated evaporating assembly (9), and evaporating assembly (9) all communicate with backward flow subassembly (4), refrigerating assembly (6) one side inner wall top fixedly connected with is used for defrosting evaporating assembly (9) surface, and subassembly (6) and water tank (102) intercommunication, air supply assembly (8) top sealing and refrigerating assembly (301) are sealed and air supply assembly (8) are sealed, the utility model provides a cleaning assembly that is used for clean evaporation subassembly (9) of fixedly connected with in the round hole, box (101) top outer wall fixedly connected with is used for driving pneumatic assembly (2) that cleaning assembly and sealing assembly (7) work, a plurality of equidistance distributed inlet air holes have been seted up to refrigeration case (301) one side outer wall, refrigeration case (301) one side outer wall fixedly connected with is used for blockking up the sealing plug subassembly of inlet air hole, evaporation subassembly (9) include the third connecting seat (901) of fixedly connected with refrigeration case (301) top inner wall, refrigeration case (301) bottom inner wall fixedly connected with fourth connecting seat (902), a plurality of equidistance distributed evaporating pipes (903) of third connecting seat (901) bottom outer wall fixedly connected with, and all evaporating pipes (903) all communicate with fourth connecting seat (902), cleaning assembly includes sleeve (204) of fixed connection in the round hole, sliding connection has first hollow rod (205) in sleeve (204), first hollow rod (205) sliding connection has second hollow rod (206), first hollow rod (205) and second hollow rod (905) and hollow rod (206) are connected with each other, hollow rod (206) are connected with each other in the connecting block (906), connecting block (905) one side outer wall fixedly connected with counter weight seat (904), and evaporating pipe (903) all run through counter weight seat (904) bottom outer wall, counter weight seat (904) bottom outer wall is close to evaporating pipe (903) department and all fixedly connected with sponge circle (907), defrosting subassembly (6) are including first connecting seat (603) at fixed connection refrigeration case (301) one side inner wall top, equal fixedly connected with shower nozzle (604) in being close to each evaporating pipe (903) department of first connecting seat (603) one side outer wall, first connecting seat (603) one side outer wall fixedly connected with raceway (601), and raceway (601) run through water tank (102) one side inner wall, raceway (601) are in inside one end fixedly connected with self-operated control valve (602) of water tank (102), the fixed orifices has been seted up to refrigeration case (301) bottom outer wall, fixed orifices fixedly connected with first solenoid valve (306).
2. A self-cleaning heat pump water heater unit employing transcritical carbon dioxide cycle as defined in claim 1, wherein: the air supply assembly (8) comprises a square tube (803) fixedly connected to one side outer wall of the box body (101), a fixing plate (801) horizontally arranged is fixedly connected to the inner wall of the square tube (803), and two fans (802) are fixedly connected to one side outer wall of the fixing plate (801).
3. A self-cleaning heat pump water heater unit employing transcritical carbon dioxide cycle as defined in claim 2, wherein: seal assembly (7) are including sealing seat (703) that a plurality of equidistance of fixed connection at square tube (803) inner wall distribute, sealing seat (703) are relative inner wall fixedly connected with rubber membrane (704), equal fixedly connected with third connecting pipe (705) in sealing seat (703) top outer wall, and third connecting pipe (705) all run through square tube (803) top outer wall, same second connecting seat (701) of third connecting pipe (705) top fixedly connected with, second connecting seat (701) top outer wall fixedly connected with second solenoid valve (702).
4. A self-cleaning heat pump water heater unit employing transcritical carbon dioxide cycle as defined in claim 3, wherein: the pneumatic assembly (2) comprises an air pump box (201) fixedly connected to the outer wall of the top of the box body (101), an air pump is fixedly connected to the inner wall of the bottom of the air pump box (201), an air delivery pipe (203) communicated with a second connecting seat (701) is fixedly connected to an output port of the air pump, and an air exhaust pipe (202) communicated with a sleeve (204) is fixedly connected to an input port of the air pump.
5. A self-cleaning heat pump water heater unit employing transcritical carbon dioxide cycle as defined in claim 1, wherein: the output assembly (5) comprises a second connecting pipe (505) fixedly connected to an output port of the compressor, the second connecting pipe (505) penetrates through the inner wall of the bottom of the water tank (102), the second connecting pipe (505) is located at one end of the inside of the water tank (102) and fixedly connected with a coil pipe (504), one end of the coil pipe (504) is fixedly connected with an output pipe (501), the output pipe (501) penetrates through one side outer wall of the water tank (102), the arc-shaped outer wall of the output pipe (501) is fixedly connected with a one-way throttle valve (502), and one side outer wall of the one-way throttle valve (502) is fixedly connected with a shunt pipe (503) communicated with a fourth connecting seat (902).
6. A self-cleaning heat pump water heater unit employing transcritical carbon dioxide cycle as defined in claim 5, wherein: the back flow subassembly (4) is including fixed connection at the back flow (403) of compressor input port, refrigeration case (301) one side outer wall fixedly connected with insulating tube (401), insulating tube (401) bottom outer wall fixedly connected with and intercommunication seat (402) of back flow (403) intercommunication, intercommunication seat (402) top outer wall fixedly connected with spiral return bend (406) that two symmetries set up, one of them spiral return bend (406) top fixedly connected with input tube (404), another spiral return bend (406) top fixedly connected with and first connecting tube (405) of third connecting seat (901) intercommunication.
7. A self-cleaning heat pump water heater unit employing transcritical carbon dioxide cycle as defined in claim 1, wherein: the sealing plug assembly comprises an electric telescopic rod (305) fixedly connected with the outer wall of one side of a refrigerating box (301), a transmission plate (304) is fixedly connected with the output end of the electric telescopic rod (305), two connecting frames (302) are fixedly connected with the outer wall of one side of the transmission plate (304), the two connecting frames (302) penetrate through the outer wall of one side of the refrigerating box (301), a plurality of sealing blocks (303) distributed at equal distances are fixedly connected with the outer wall of one side of the connecting frame (302), and the sealing blocks (303) are matched with an air inlet.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211064114.3A CN115289710B (en) | 2022-09-01 | 2022-09-01 | Self-cleaning heat pump water heater unit adopting transcritical carbon dioxide circulation |
| JP2023137779A JP2024035149A (en) | 2022-09-01 | 2023-08-28 | Self-cleaning type heat-pump water heater unit using ultra-critical carbon dioxide cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211064114.3A CN115289710B (en) | 2022-09-01 | 2022-09-01 | Self-cleaning heat pump water heater unit adopting transcritical carbon dioxide circulation |
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| Publication Number | Publication Date |
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| CN115289710A CN115289710A (en) | 2022-11-04 |
| CN115289710B true CN115289710B (en) | 2024-04-30 |
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| CN202211064114.3A Active CN115289710B (en) | 2022-09-01 | 2022-09-01 | Self-cleaning heat pump water heater unit adopting transcritical carbon dioxide circulation |
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| CN (1) | CN115289710B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970016475A (en) * | 1995-09-18 | 1997-04-28 | 배순훈 | Refrigerator defrosting method and apparatus |
| CN206737764U (en) * | 2017-05-17 | 2017-12-12 | 刘辉 | A kind of automatic scrubbing window with defrosting function |
| CN213480376U (en) * | 2021-05-10 | 2021-06-18 | 黎耀智能科技有限公司 | Energy-saving air conditioner for base station |
| CN214469566U (en) * | 2021-02-08 | 2021-10-22 | 中兵占一新能源科技集团有限公司 | Defrosting assembly of closed type transcritical CO2 heat pump hot water unit |
| CN215373118U (en) * | 2021-02-08 | 2021-12-31 | 中兵占一新能源科技集团有限公司 | Ultra-low temperature CO2 air source overlapping heat pump unit defrosting assembly |
-
2022
- 2022-09-01 CN CN202211064114.3A patent/CN115289710B/en active Active
-
2023
- 2023-08-28 JP JP2023137779A patent/JP2024035149A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970016475A (en) * | 1995-09-18 | 1997-04-28 | 배순훈 | Refrigerator defrosting method and apparatus |
| CN206737764U (en) * | 2017-05-17 | 2017-12-12 | 刘辉 | A kind of automatic scrubbing window with defrosting function |
| CN214469566U (en) * | 2021-02-08 | 2021-10-22 | 中兵占一新能源科技集团有限公司 | Defrosting assembly of closed type transcritical CO2 heat pump hot water unit |
| CN215373118U (en) * | 2021-02-08 | 2021-12-31 | 中兵占一新能源科技集团有限公司 | Ultra-low temperature CO2 air source overlapping heat pump unit defrosting assembly |
| CN213480376U (en) * | 2021-05-10 | 2021-06-18 | 黎耀智能科技有限公司 | Energy-saving air conditioner for base station |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2024035149A (en) | 2024-03-13 |
| CN115289710A (en) | 2022-11-04 |
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