WO2022218439A1 - Ventilateur et chauffe-eau de type pompe à chaleur l'utilisant - Google Patents

Ventilateur et chauffe-eau de type pompe à chaleur l'utilisant Download PDF

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Publication number
WO2022218439A1
WO2022218439A1 PCT/CN2022/087424 CN2022087424W WO2022218439A1 WO 2022218439 A1 WO2022218439 A1 WO 2022218439A1 CN 2022087424 W CN2022087424 W CN 2022087424W WO 2022218439 A1 WO2022218439 A1 WO 2022218439A1
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WIPO (PCT)
Prior art keywords
heat pump
evaporator
fan
volute
water heater
Prior art date
Application number
PCT/CN2022/087424
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English (en)
Chinese (zh)
Inventor
王菲
伍敏
罗文�
Original Assignee
瑞美(中国)热水器有限公司
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Application filed by 瑞美(中国)热水器有限公司 filed Critical 瑞美(中国)热水器有限公司
Priority to US18/287,113 priority Critical patent/US20240200828A1/en
Publication of WO2022218439A1 publication Critical patent/WO2022218439A1/fr

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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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
    • F04D29/283—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis rotors of the squirrel-cage type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
    • F04D29/4226—Fan casings
    • F04D29/424—Double entry casings
    • 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
    • F24H9/0005—Details for water heaters

Definitions

  • the invention relates to a fan and a heat pump type water heater using the fan, and relates to the field of heat pump water heaters.
  • the heat pump type water heater has higher actual energy efficiency. Compared with the electric water heater, its consumption of 1kW of electricity will generate more than 1kW of heat, which also makes it used in the practical application of water heaters. quality of life and response to the call for a low-carbon life.
  • the working principle of the heat pump water heater is to use the reverse Carnot cycle to concentrate the heat in the environment to form an effect similar to a heat pump, and extract the heat from the environment to heat the water in the water tank to achieve the purpose of hot water supply.
  • the reverse Carnot cycle generally includes four components.
  • the power core components generally use compressors (including centrifugal rotor compressors, scroll compressors, etc.), and the compressors are used for medium (including R134a, R404A, R22, etc.) Type refrigerant) is compressed to form a high temperature and high pressure type gas refrigerant (for example, different refrigerants can form superheated refrigerants up to tens of degrees or even nearly 100 degrees Celsius); it is transported to the condenser to exchange heat with the water tank or water, Finally, the phase change in the release of superheat is realized, and the latent heat and sensible heat of the cooling medium are used to heat the water and convert it into a refrigerant liquid medium in a supercooled state; After throttling, it becomes a low-pressure liquid medium with a large superheat degree, and finally evaporates in the evaporator, exchanging heat with the air flowing through the evaporator, thereby absorbing the heat in the air.
  • compressors including centr
  • the evaporation temperature of the low-pressure liquid refrigerant can actually be relatively low at this time, so it can adapt to changes in the ambient temperature within a certain range, and can achieve the effect of absorbing heat in the air to complete the entire cycle.
  • the heat pump type water heater In order to ensure the comprehensive requirements of the heating capacity and energy efficiency of the water heater, the heat pump type water heater generally adopts a split design, but this design has defects such as difficult installation and high maintenance cost. In order to ensure the beauty of the entire heat pump system, more and more heat pump water heaters adopt an integral design, which has the advantages of easy installation and small footprint. However, there are very few heat pump water heaters that can achieve high energy efficiency, large heating capacity, and integrated design. An innovative design is urgently needed to solve the contradiction between aesthetic space and heating energy efficiency.
  • a fan and a heat pump type water heater using the fan are provided, so as to solve the problems of insufficient heating capacity of the system and poor design of the system wind field in the prior art under the requirements of aesthetics, space requirements, and convenient installation.
  • Insufficient heating capacity caused by inefficient heat exchange with air, and technical problems such as low actual energy efficiency under standard system conditions caused by unreasonable overall system layout, and even lead to serious deviations in the design of the heat pump system until the heat pump water heater cannot be realized The energy saving benefits brought by energy efficiency.
  • the fan used for the heat pump water heater is a double-inlet type fan, and the double-inlet type fan is optimally selected as a centrifugal type fan, including a volute, a partition plate and an impeller, the impeller is arranged in the volute, and the impeller
  • the rotating shaft is located on the helical axis of the volute and is connected with the transmission shaft in the volute,
  • the volute is designed with an involute structure, and the volute tongue of the volute is in a reverse roll shape;
  • the spacer plate is disposed between the two volutes to form two sets of exhaust passages, the helical axes of the two volutes are perpendicular to the spacer plate, and the two volutes are arranged symmetrically to each other;
  • a side wall of the volute away from the partition plate is provided with an air inlet, the air inlet is perpendicular to the spiral axis of the volute, and the two air outlets are arranged in parallel and in the same direction, so that the air outlet directions of the air outlets of the two volutes are the same.
  • a drive motor is arranged on the partition plate to ensure reliable and effective heat dissipation of the motor, and the drive motor is arranged symmetrically with the partition plate as a symmetrical plane, and is located in the center of the partition plate, and the air on both sides of the partition plate does not flow. interfere with each other.
  • Impellers are arranged on the output shaft of the drive motor and located in different volutes, and the gap between the impeller and the volute satisfies the relationship of an involute equation.
  • the present invention also provides a heat pump type water heater, comprising a condenser and a water tank, the top of the water tank is provided with a heat pump system;
  • the heat pump system includes a casing, and the above-mentioned fan is arranged inside the casing, and an evaporator, a compressor and a throttling device are also arranged;
  • the air outlet of the compressor is connected to the air inlet of the condenser, the liquid outlet of the condenser is connected to the liquid inlet of the throttling device, the liquid outlet of the throttling device is connected to the liquid inlet of the evaporator, and the air outlet of the evaporator Connected to the air inlet of the compressor;
  • the fan is used to take away the air refrigerated by the evaporator, the fan is installed upside down in the upper space of the water tank, and the air outlet and the air inlet of the fan are both vertical.
  • the air outlet directions of the two volute air outlets are horizontal, and the air outlets are located on the lower side of the air inlets.
  • the axis of the impeller is horizontal, the axis of the impeller preferably coincides with the axis of the spiral of the volute, and the included angle between the axis of the impeller and the axis of the water tank is 90°.
  • the evaporator is a plate type evaporator, two sets of plate type evaporators are symmetrically arranged on both sides of the partition plate, and the plate surface of the plate type evaporator is opposite to the air inlet of the volute.
  • the two sets of plate evaporators are arranged in parallel.
  • other structures such as double L type, double C type and type and so on.
  • the gap between the air inlet and the evaporator and the wall surface of the volute form a uniform air distribution chamber, and the distance between the air inlet and the evaporator is 30-90 mm.
  • a lattice baffle is connected between the two sets of the evaporators, the lattice baffle is arranged vertically, the lattice baffle is located on the side of the volute and is far away from the air outlet of the volute, and the lattice baffle is away from the side of the air outlet.
  • the thickness of the grid baffle is 0.8-1.5 mm.
  • the shape of the grid baffle plate can be adaptively adjusted according to the relative positional relationship between the compressor and the fan.
  • the central plane of the evaporator is parallel to the partition plate
  • the axis of the central plane of the evaporator includes a vertical axis and a horizontal axis
  • the vertical distance between the vertical axis and the axis of the impeller is 0-125mm
  • the horizontal axis and the axis of the impeller are The vertical distance of the axis is 0-50mm.
  • the central plane is the vertical plane of the center of the evaporator and is parallel to the partition plate.
  • the axis of the central plane is the vertical centerline (vertical axis) and the horizontal centerline (horizontal axis) of the rectangular surface.
  • the vertical distance between the vertical center line of the evaporator and the axis of the impeller is 0-125 mm
  • the horizontal distance between the horizontal center line of the evaporator and the axis of the impeller is 0-50 mm.
  • an air inlet is provided on the housing at a position corresponding to the evaporator, and an air outlet is provided on the housing at a position corresponding to the air outlet.
  • the condenser can be arranged inside the water tank or attached to the wall of the water tank, and it is included in the range constructed by the outer space of the water tank.
  • the COP of the heat pump system is not lower than 4.0 under standard conditions.
  • the present invention designs a heat pump type water heater with high energy efficiency, large heating capacity, and low noise based on the integrated water heater, which also satisfies the characteristics of easy system installation and good production and maintenance.
  • the arrangement of the fan of the present invention can effectively improve the heat exchange efficiency of the evaporator and reduce the noise.
  • the energy efficiency index under standard conditions is not lower than COP4.0 (meeting the requirements of secondary energy efficiency), and the heating capacity is not less than 2500W. Large heating capacity, and The noise of the whole machine can also be maintained at a level close to 40dB(A).
  • FIG. 1 is a schematic diagram of the principle of a heat pump type water heater in the prior art
  • Fig. 2 is the external schematic diagram of the heat pump type water heater provided by the embodiment of the present invention.
  • FIG. 3 is a schematic layout diagram of a part of a heat pump system provided by an embodiment of the present invention.
  • FIG. 4 is a top view of a fan according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a volute provided by an embodiment of the present invention.
  • Figure 6 is a front view of the heat pump system shown in Figure 3;
  • FIG 7 is a top view of the heat pump system shown in Figure 3.
  • FIG. 8 is an enlarged view of the heat pump system shown in FIG. 3;
  • FIG. 9 is a schematic diagram of setting the axial distance between a fan and an evaporator according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a performance test result of a heat pump type water heater provided by an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of the overall structure of the fan of the present invention.
  • the compressor 5 provides the power to circulate the refrigerant in the entire system (of course, the type of refrigerant is not limited here, it can be R134a, R404A, R22, or even CO 2 working in a supercritical state, etc.), and on the other hand
  • the energy of the refrigerant increases the working power of W, and the dissipation effect in the process is not considered here.
  • the refrigerant absorbs the work of the compressor 5, it becomes a high temperature and high pressure gaseous refrigerant due to its own temperature rise.
  • the water tank 1 At the position of the water tank 1, it can be arranged on the outer wall surface of the water tank 1 through a coil or a micro-coil.
  • a coil or a micro-coil Of course, an auxiliary heat-conducting layer with good thermal conductivity can be applied between the coil, the micro-coil and the wall, or the coil can be used.
  • the tube is arranged in the water tank 1.
  • a plate heat exchanger may also be used to achieve wall-type heat exchange between water and refrigerant, which is not limited here.
  • the refrigerant in the high temperature and high pressure state in the condenser exchanges heat with the low temperature water, it is condensed into a liquid form with a lower temperature, that is, the latent heat and sensible heat contained in the refrigerant in the condenser are transferred to the water.
  • the absorbed heat is Qw.
  • the water that has absorbed the heat can be heated by circulating for many times to raise the water in the water tank 1 to the set temperature, and the condensed refrigerant passes through the throttling device 14 (here can be a thermal expansion valve, a capillary tube , electronic expansion valve, etc.), it becomes a superheated refrigerant with a certain degree of superheat.
  • the fan 3 After entering the evaporator 4, it is equivalent to entering a fully developed large-scale space, so the refrigerant will absorb heat. At this time, the fan 3 makes the evaporator 4 The air in contact is pumped in real time, thus achieving the effect of continuous energy supply from the surrounding air. Of course, in order to meet the heating demand, the speed of the fan 3 can be precisely controlled, so as to achieve the effect of precise heating.
  • the energy drawn from the surrounding air is Qa.
  • the type of water heater that is, the condenser and the water tank 1 as one part, and the compressor 5, the fan 3, etc. as the other part, form two parts, indoor and outdoor, similar to the current air conditioner installation scheme, but the installation scene required by this scheme is more complex , and the overall space occupied by the system is particularly large, and for users, the appearance of the split heat pump water heater cannot be designed particularly beautiful.
  • the noise heat pump type water heater also meets the characteristics of easy system installation and good production and maintenance.
  • the fan used for the heat pump type water heater, fan 3 adopts a double-inlet type fan, which can ensure that the air intake can meet the demand.
  • the helical axes of the two volutes 8 are perpendicular to the partition plate 9, and the two volutes 8 are arranged symmetrically with each other.
  • the design of the double air inlet fans can create a negative pressure area from the symmetrical side to achieve the effect of greater heating capacity.
  • the air inlets 6 can also be set to more than two structures, which is not limited here.
  • a side wall of the volute 8 away from the partition plate 9 is provided with an air inlet 6, the air inlet 6 and the spiral axis of the volute 8 are perpendicular, and the air outlet directions of the air outlets 7 of the two volutes 8 are the same.
  • the air outlet 7 of the fan 3 is arranged corresponding to the air inlet 6, and here, in order to ensure that the air inlet 6 and the evaporator 4 can form an optimal negative pressure field.
  • Fig. 4 is a schematic diagram of the air flow of the fan 3 in the working state represented by the fan 3 of the double-inlet and double-outlet type as an example.
  • the double-inlet and double-outlet fan is optimally selected as a centrifugal fan, so that the fan 3 and the evaporator can be guaranteed.
  • the negative pressure between 4 and 4 is larger, which can also ensure that the entire system can still have sufficient air intake under the condition of limited installation location.
  • the middle partition plate 9 optimally contains the drive motor of the fan 3, and the drive motor is arranged in the The heat-exchanged air flow passages passing through the evaporator 4 can also ensure reliable heat dissipation of the motor.
  • the motor is symmetrically installed at the center of the partition plate 9, and the air on both sides of the partition plate 9 does not interfere with each other.
  • the two impellers of the centrifugal fan 3 rotate. Due to the centrifugal force of the air between the fan blade and the volute 8, the static pressure energy of the air is partially converted into velocity energy.
  • a negative pressure state will be formed at the air inlet 6 of the fan 3.
  • the surrounding air Under the action of negative pressure, it flows through the evaporator 4 to generate a continuous supply of heat source.
  • the volute 8 of the fan 3 is optimally designed with an involute structure, and the volute tongue 13 of the fan 3 is optimally designed as a structure with a gradually increasing opening, that is, a reverse roll shape, and the impeller of the fan 3 is optimally designed.
  • the gap with the volute 8 of the fan 3 needs to meet the set involute equation relationship, so as to ensure that the negative pressure is sufficient, the fan 3 has less running noise, and the centrifugal fan with double-in and double-out structure
  • the application of 3 ensures that lower noise can still be guaranteed under the requirements of large heating capacity, high energy efficiency and volume limitation.
  • the fan 3 when used in a heat pump type water heater, in order to obtain high heating energy efficiency, the fan 3 is optimally installed upside down in the upper space of the water tank 1, that is, the average position of the air outlet 7 of the fan 3 is required to be lower than the inlet of the fan 3. Average position of tuyere 6.
  • the two air outlets 7 are arranged side by side in the same direction, so that the air outlet directions are parallel to each other; the height of the air outlet 7 is lower than the height of the air inlet 6 .
  • An air inlet 10 is provided on the housing 2 at a position corresponding to the evaporator 4
  • an air outlet 11 is provided on the housing 2 at a position corresponding to the air outlet 7 .
  • the included angle between the axis of the fan 3 and the axis of the water tank 1 ie, the vertical centerline) is 90°.
  • the present invention also provides a heat pump type water heater, comprising a condenser and a water tank 1, and a heat pump system is provided on the top of the water tank 1;
  • the heat pump system includes a casing 2 and a fan 3 (ie, the fan 3 described in Embodiment 1), an evaporator 4, a compressor 5 and a throttling device 14 arranged inside the casing 2;
  • the air outlet of the compressor 5 is connected to the air inlet of the condenser, the liquid outlet of the condenser is connected to the liquid inlet of the throttling device 14, and the liquid outlet of the throttling device 14 is connected to the liquid inlet of the evaporator 4.
  • the air outlet of the compressor 4 is connected to the air inlet of the compressor 5;
  • the fan 3 is arranged beside the evaporator 4 and is used to extract the air cooled by the evaporator 4, and the air outlet 7 and the air inlet 6 of the fan 3 are both vertical.
  • the condenser arranged inside the water tank 1 or attached to the wall surface is not shown, and it is included in the range constructed by the peripheral space of the water tank 1 .
  • the compressor 5 is the power element of the system, which can be selected in the form of a scroll type compressor 5, a centrifugal type compressor 5, etc.
  • the design of the compressor 5 is also It differs from the compressor 5 for general air conditioners, and is not limited here.
  • the heat pump type water heater of the present invention designs the outer cylinder of the water tank 1 and the heat pump assembly in the same range to realize the integration effect of the system.
  • the extra parts outside the system ensure the beauty and integration effect of the whole system, and the optimal utilization of space is also achieved, and there will be no sudden turning points.
  • the preset range shown in the figure is a circle with a certain diameter. In order to meet the aesthetic requirements, other special-shaped shapes can be made in the range, which is not limited here, but the design of the preset range here needs to balance two requirements, one is the space requirement of the heat pump assembly, and the other is the capacity requirement of the water tank 1 (water tank). 1. It should not be too large, because it will cause energy waste if it is too large; it should not be too small, and the hot water capacity will be too small, which will cause impractical problems).
  • the evaporators 4 are two sets of plate evaporators arranged in parallel, and are symmetrically arranged on both sides of the partition plate (9) and are opposite to the air inlet (6) of the volute (8).
  • a gap is provided between the air inlet 6 of the fan 3 and the evaporator 4 , and the gap and the wall surface of the volute 8 form a uniform air distribution chamber.
  • a gap for pressure equalization is included between the air inlet 6 of the fan 3 and the evaporator 4.
  • the fan 3 here is still an example of a double-inlet type fan.
  • the evaporator 4 includes parts that are symmetrically distributed on both sides of the fan 3.
  • other structures such as double L-shaped and double C-shaped are also included. and type, etc.
  • the symmetrically arranged part of the evaporator 4 and the air inlet of the fan 3 includes a gap for pressure equalization, and the spacing width of the gap ranges from 30 to 90 mm.
  • the interval width of the gap is optimally selected as the above range, and the air outlet 7 of the fan 3 is still located closer to the water tank.
  • the position of 1 is not limited here either.
  • a grid plate 12 is provided between the fan 3 and the compressor 5 , and the two ends of the grid plate 12 are respectively connected to the evaporators 4 on both sides of the fan 3 .
  • the grid baffle plate 12 is located at the side of the volute 8 and away from the air outlet of the volute casing, and the compressor 5 is provided on the side of the grid baffle plate 12 away from the air outlet 7 .
  • the thickness of the grid baffle plate 12 is 0.8-1.5 mm.
  • the evaporator 4 and the fan 3 form the first part of the heat pump assembly, and between the compressor 5 and the first part of the heat pump assembly, a grid baffle 12 is arranged, and the grid baffle plate 12 has a certain thickness range
  • the sheet metal part is connected with the water tank 1 component to form a strong damping structure for shock absorption.
  • the thickness that needs to be met is 0.8 to 1.5 mm.
  • the grid baffle 12 is optimally set as a plate structure composed of metal materials such as steel.
  • the baffle plate 12 may be provided with ventilation openings to more effectively utilize the waste heat generated by the compressor 5, which is not limited here.
  • the compressor 5 can be arranged in an independent space, and it is connected to the water tank 1 through elements such as buffer pads.
  • the grid baffle 12 is also connected to the water tank 1 and is connected to the evaporator 4.
  • the evaporator 4 includes evaporators 4 that are at least partially symmetrically distributed on both sides of the air inlet 6 of the fan 3, and the evaporators 4 are connected in parallel, that is, the refrigerant is basically evenly distributed to the two symmetrically distributed evaporators 4, so that the two The amount of heat exchange generated by the symmetrically arranged evaporators 4 is basically the same, so that the entire system can utilize the ambient heat in the constructed wind field higher.
  • the refrigerant first flows through a part to evaporate It is not excluded that the evaporator 4 flows through another part of the evaporator 4, but the overall heating capacity will be slightly smaller.
  • the central plane of the evaporator 4 is parallel to the partition plate 9, the axis of the central plane of the evaporator 4 includes a vertical axis and a horizontal axis, and the vertical distance between the vertical axis and the axis of the fan 3 is 0-125 mm, so The vertical distance between the horizontal axis and the axis of the fan 3 is 0-50mm.
  • the central plane is the vertical plane of the center of the evaporator 4, which is parallel to the partition plate 9.
  • the axis of the central plane is the vertical central line (vertical axis) and the horizontal central line (horizontal axis) of the rectangular plane.
  • the COP of the heat pump system is not lower than 4.0 under standard conditions.
  • the axis of the central plane and the axis of the fan 3 need to be within a preset range.
  • the symmetrically arranged evaporator 4 includes at least two For the plane part, as shown in Figure 9, its central plane is the vertical plane of the center of the evaporator 4. At this time, the axis of the central plane is also the central line of the rectangular plane. Of course, in other scenarios, it may only be a symmetrically distributed part of the evaporation.
  • the central plane of the evaporator 4 (such as the C-type, L-type evaporator 4, etc.), the vertical distance between the vertical axis and the axis of the fan 3 is 0mm, and the vertical distance between the horizontal axis and the axis of the fan 3 is 0mm.
  • the optimal size of the distance is 0 mm, so that the distribution of the wind field in the entire evaporator 4 can be more uniform, and the average speed of the constructed wind field is more reasonable, which ensures more effective utilization of the environmental energy by the evaporator 4 .
  • the heat pump type water heater of the present invention it is possible to achieve a high energy efficiency index with an energy efficiency not lower than COP4.0 under standard conditions (meeting the requirements of secondary energy efficiency), a large heating amount of not less than 2500W, and the noise of the whole machine can be maintained.
  • Figure 10 the schematic diagram of the heat pump performance realized by the solution of the present application under different test conditions is shown in Figure 10, that is, the design structure proposed in the present application can solve the space and energy efficiency heating It is of great value for the subsequent popularization and use of heat pumps.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

La présente invention se rapporte au domaine des chauffe-eaux à pompe à chaleur. Sont divulgués un ventilateur et un chauffe-eau de type pompe à chaleur l'utilisant. Le ventilateur de la présente invention est monté à l'envers dans un espace supérieur d'un réservoir d'eau pour pomper de l'air réfrigéré par un évaporateur dans le chauffe-eau de type pompe à chaleur ; le ventilateur comprend des volutes, une plaque de séparation et une roue à aubes, la roue à aubes étant disposée dans les volutes, les volutes étant conçues comme une structure à développante, et des languettes de volute des volutes étant en forme de défilement arrière ; deux volutes sont fournies, la plaque de séparation est disposée entre les deux volutes, des arbres en spirale des deux volutes sont perpendiculaires à la plaque de séparation, et les deux volutes sont disposées symétriquement ; une entrée d'air est formée dans la paroi latérale de chaque volute distante de la plaque de séparation, les entrées d'air sont perpendiculaires aux arbres en spirale des volutes, et les directions de sortie d'air des sorties d'air des deux volutes sont les mêmes. Le chauffe-eau à pompe à chaleur intégrée de la présente invention permet d'obtenir des effets tels qu'une efficacité énergétique élevée, une grande capacité de chauffage, et un faible bruit dans un espace limité principalement par optimisation d'un champ de vent de l'ensemble du système et par disposition raisonnable des composants.
PCT/CN2022/087424 2021-04-16 2022-04-18 Ventilateur et chauffe-eau de type pompe à chaleur l'utilisant WO2022218439A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US18/287,113 US20240200828A1 (en) 2021-04-16 2022-04-18 Fan and Heat Pump Type Water Heater Using Same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110413790.6 2021-04-16
CN202110413790.6A CN113074457A (zh) 2021-04-16 2021-04-16 热泵类型热水器

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WO2022218439A1 true WO2022218439A1 (fr) 2022-10-20

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