CN212585205U - Evaporator and heat pump water heater - Google Patents
Evaporator and heat pump water heater Download PDFInfo
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- CN212585205U CN212585205U CN202021209959.3U CN202021209959U CN212585205U CN 212585205 U CN212585205 U CN 212585205U CN 202021209959 U CN202021209959 U CN 202021209959U CN 212585205 U CN212585205 U CN 212585205U
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Abstract
The utility model discloses an evaporimeter and heat pump water heater, wherein, the evaporimeter includes: an evaporator body having a top surface and a bottom surface in a height direction; the coil pipe, the coil pipe encircles and locates the evaporimeter body forms circulation pipeline, the coil pipe has: the refrigerant inlet is arranged on the coil pipe and communicated with a throttling device; the refrigerant outlet is arranged on the coil pipe and is close to the bottom surface; and the gas collecting pipe is provided with a gas inlet and a gas outlet, the gas inlet is connected with the refrigerant outlet, and the gas outlet is communicated with the compressor. The utility model discloses technical scheme aims at providing the evaporimeter that makes things convenient for the coil pipe defrosting and improve the heat transfer effect.
Description
Technical Field
The utility model relates to a heat pump water heater technical field, in particular to heat pump water heater of evaporimeter and applied this evaporimeter.
Background
The heat pump water heater is a high-efficiency heat energy lifting and transferring device working based on reverse Carnot cycle, and uses a small amount of electric energy as power, uses a refrigerant as a carrier, continuously absorbs low-grade heat energy in air, and converts the low-grade heat energy into usable high-grade heat energy.
The evaporator is arranged in the shell of the heat pump water heater and is used for converting the low-temperature low-pressure liquid from the throttling device into low-temperature low-pressure gas and conveying the low-temperature low-pressure gas to the compressor.
However, in the process of implementing the technical solution of the present invention in the embodiment of the present application, the inventor of the present application finds that the above-mentioned technology has at least the following technical problems:
due to the limitation of the installation structure of the evaporator and the shell, the bottom ventilation resistance is large, the air quantity is small, the bottom coil pipe is easy to frost, the heat exchange effect is influenced, and the existing coil pipe structure is difficult to defrost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an evaporimeter, aim at providing one kind and make things convenient for the defrosting of coil pipe and improve the evaporimeter of heat transfer effect.
In order to achieve the above object, the present invention provides an evaporator for a heat pump water heater, the evaporator includes:
an evaporator body having a top surface and a bottom surface in a height direction;
the coil pipe, the coil pipe encircles and locates the evaporimeter body forms circulation pipeline, the coil pipe has:
the refrigerant inlet is arranged on the coil pipe and communicated with a throttling device;
and
the refrigerant outlet is arranged on the coil pipe and is close to the bottom surface; and
the gas collecting pipe is provided with a gas inlet and a gas outlet, the gas inlet is connected with the refrigerant outlet, and the gas outlet is communicated with the compressor.
In an embodiment, there are two groups of the refrigerant outlets, two groups of the refrigerant outlets are arranged at intervals along the height direction of the evaporator body, one refrigerant outlet is arranged on the coil pipe and close to the top surface, the other refrigerant outlet is arranged on the coil pipe and close to the bottom surface, the gas collecting pipe has two gas inlets and one gas outlet, the gas inlets and the refrigerant outlets are connected in a one-to-one correspondence manner through connectors, and the gas outlet is communicated with the compressor.
In an embodiment, each of the refrigerant outlets has two air outlet ports, the connector is a Y-shaped tee, and the refrigerant outlet is connected to the air inlet port through the Y-shaped tee.
In one embodiment, there are two sets of the refrigerant inlets, the two sets of the refrigerant inlets are spaced apart from each other along the height direction of the evaporator body, and the two sets of the refrigerant inlets are located between the two sets of the refrigerant outlets, one of the refrigerant inlets is located near the middle of the evaporator body, and the other refrigerant inlet is located near the bottom of the evaporator body.
In one embodiment, each of the refrigerant inlets has two air inlet ports.
In one embodiment, the refrigerant inlet is communicated with the throttling device through a Y-shaped tee joint.
In an embodiment, the evaporator further includes a tube jumper disposed on and communicated with the coil pipe, the coil pipe has a first tube jumper interface and a second tube jumper interface, the first tube jumper interface is adjacent to the bottom surface, and the second tube jumper interface is located between the two sets of refrigerant inlets and is adjacent to the middle of the evaporator body.
In one embodiment, there are two jumper tubes, and the two jumper tubes are arranged at intervals in front of and behind and are respectively communicated with the coil pipe.
In an embodiment, the evaporator further includes two connecting plates, the two connecting plates are sleeved on the coil pipe and are arranged on two opposite sides of the evaporator body, and the connecting plates are provided with bending portions.
The utility model discloses still provide a heat pump water heater, heat pump water heater includes the casing, heat pump water heater still includes:
the evaporator is arranged on the shell;
the compressor is arranged on the shell; and
the condenser is arranged on the shell;
the evaporator, the compressor with the condenser communicates through the pipeline in proper order the evaporator with the communicating pipeline of condenser still is equipped with throttling arrangement.
The utility model adopts the technical proposal that the coil pipe is surrounded and arranged on the evaporator body to form a circulating pipeline, the coil pipe is provided with a refrigerant inlet and a refrigerant outlet, the gas collecting pipe is provided with an air inlet and an air outlet, the refrigerant inlet is communicated with a throttling device, the refrigerant outlet is communicated with the air inlet and is communicated with a compressor through the air outlet, the refrigerant outlet is arranged on the coil pipe and is close to the bottom surface of the evaporator body, therefore, when defrosting is needed, the refrigerant can flow in the reverse direction through the refrigerant with higher temperature in the compressor, and the refrigerant sequentially flows through the air outlet, the gas collecting pipe, the air inlet, the refrigerant outlet and the coil pipe, because the technical means that the refrigerant outlet is arranged at the bottom of the coil pipe is adopted, the refrigerant can preferentially pass through the coil pipe which is easy to frost at the bottom of the evaporator, thereby realizing the frost, the bottom ventilation resistance is large, the air quantity is small, the bottom coil pipe is easy to frost, the heat exchange effect is influenced, the existing coil pipe structure is difficult to defrost, and the technical effect of facilitating the defrosting of the coil pipe and improving the heat exchange effect is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of an evaporator according to the present invention;
fig. 2 is a schematic diagram of a disassembled structure of the evaporator of the present invention;
FIG. 3 is a schematic structural view of the evaporator body and the coil according to the present invention;
the reference numbers illustrate:
an evaporator 100; an evaporator body 10; a coil 20; a refrigerant inlet 21; an intake port 211; a refrigerant outlet 22; an outlet port 221; a first jumper interface 23; a second jumper interface 24; a gas collecting pipe 30; an air inlet 31; an air outlet 32; a connecting head 40; a jumper tube 50; a connecting plate 60.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides an evaporator 100, this evaporator 100 is applied to in the heat pump water heater. When the evaporator 100 is in operation, because the surface temperature is low, when the condensed water flows downwards along the evaporator 100 and meets the coil 20 and the fins which are lower than 0 ℃, the heat released by the condensed water is condensed into frost, if the defrosting is not performed in time or the defrosting is not thorough, the heat exchanger cannot be fully used, and the heating effect is finally influenced.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
In an embodiment of the present invention, referring to fig. 1 to 3, the evaporator body 10 includes an evaporator body 10, a coil 20 and a gas collecting pipe 30, wherein the evaporator body 10 has a top surface and a bottom surface along a height direction; the coil 20 is arranged around the evaporator body 10 to form a circulation pipeline, wherein the coil 20 is provided with a refrigerant inlet 21 and a refrigerant outlet 22, the refrigerant inlet 21 is arranged on the coil 20, and the refrigerant inlet 21 is communicated with a throttling device; the refrigerant outlet 22 is arranged on the coil pipe 20 and is close to the bottom surface; the gas collecting pipe 30 has a gas inlet 31 and a gas outlet 32, the gas inlet 31 is connected to the refrigerant outlet 22, and the gas outlet 32 communicates with the compressor.
The heat pump water heater can realize heating based on reverse Carnot circulation, in the heating process, low-temperature low-pressure liquid refrigerant flowing out of the throttling device flows into the evaporator body 10 through the pipeline to realize isothermal evaporation, low-temperature low-pressure gaseous refrigerant flowing out of the evaporator body 10 flows into the compressor through the pipeline, high-temperature high-pressure refrigerant is formed through the compression action of the compressor, and then the refrigerant enters the condenser to exchange heat, so that the heating of external low-temperature water is realized. Due to the limitation of the installation structure of the evaporator body 10 and the shell, the bottom ventilation resistance is large, the air volume is small, and the bottom coil pipe 20 is easy to frost. Through the improved coil pipe 20, it can be realized that in the defrosting mode, the high-temperature and high-pressure refrigerant of the compressor can preferentially flow through the bottom coil pipe 20 of the evaporator body 10, so as to defrost the coil pipe 20 which is easy to frost.
The utility model discloses a technical scheme includes evaporimeter body 10, coil pipe 20 and gas collecting pipe 30, coil pipe 20 encircles and locates evaporimeter body 10 and forms the circulation line, coil pipe 20 has refrigerant entry 21 and refrigerant export 22, gas collecting pipe 30 has air inlet 31 and gas outlet 32, refrigerant entry 21 intercommunication throttling arrangement, refrigerant export 22 communicates air inlet 31 and communicates to the compressor through gas outlet 32, refrigerant export 22 is located coil pipe 20 and closes on evaporimeter body 10 bottom surface, therefore, when needing to defrost, can flow in reverse direction through the higher refrigerant of temperature in the compressor, the refrigerant flows through gas outlet 32 in proper order, gas collecting pipe 30, air inlet 31, refrigerant export 22 and coil pipe 20, owing to adopted the technical means that refrigerant export 22 locates the bottom of coil pipe 20, the coil pipe 20 that the refrigerant is frosted through evaporimeter body 10 bottom is preferred during messenger's defrost preferentially, and then realize frosting, therefore, the technical problems that in the prior art, due to the limitation of the installation structure of the evaporator body 10 and the shell, the bottom ventilation resistance is large, the air quantity is small, the bottom coil pipe 20 is easy to frost, the heat exchange effect is influenced, and the existing coil pipe 20 structure is difficult to defrost are effectively solved, so that the technical effect of facilitating the defrosting of the coil pipe 20 and improving the heat exchange effect is achieved.
In an embodiment of the present invention, referring to fig. 1 to 3, there are two groups of refrigerant outlets, the two groups of refrigerant outlets are spaced along a height direction of the evaporator body, one refrigerant outlet is disposed on the coil pipe and near the top surface, and the other refrigerant outlet is disposed on the coil pipe and near the bottom surface; the gas collecting pipe is provided with two gas inlets and a gas outlet, the gas inlets are correspondingly connected with the refrigerant outlets through connectors one to one, and the gas outlet is communicated with the compressor.
In an embodiment of the present invention, please refer to fig. 3, each refrigerant outlet 22 has two air outlet ports 221, the connector 40 is a Y-shaped tee, and the refrigerant outlet 22 is connected to the air inlet 31 through the Y-shaped tee. The Y-shaped tee is detachably connected or welded with the coil pipe 20 and the gas collecting pipe 30.
In the embodiment of the present invention, please refer to fig. 3, there are two sets of refrigerant inlets 21, the two sets of refrigerant inlets 21 are disposed along the height direction of the edge of the evaporator body 10 at intervals, and the two sets of refrigerant inlets 21 are located between the two sets of refrigerant outlets 22, one refrigerant inlet 21 is disposed near the middle portion of the evaporator body 10, and the other refrigerant inlet 21 is disposed near the bottom of the evaporator body 10.
In an embodiment of the present invention, referring to fig. 3, each refrigerant inlet 21 has two air inlet ports 211.
In an embodiment of the present invention, please refer to fig. 3, the refrigerant inlet 21 is communicated with the throttling device through a Y-shaped tee.
In the embodiment of the present invention, the distance from one refrigerant outlet 22 to the top surface is 10-15 mm, and the distance from the other refrigerant outlet 22 to the bottom surface is 80-100 mm.
In an embodiment of the present invention, please refer to fig. 1 and fig. 2, the evaporator body 10 further includes a jumper tube 50, the jumper tube 50 is disposed on the coil tube 20 and is communicated with the coil tube 20, the coil tube 20 has a first jumper tube interface 23 and a second jumper tube interface 24, the first jumper tube interface 23 is close to the bottom surface, and the second jumper tube interface 24 is located between the two sets of refrigerant inlets 21 and is close to the middle portion of the evaporator body 10.
In the embodiment of the present invention, please refer to fig. 1 and fig. 2, there are two jumper tubes 50, and the two jumper tubes 50 are spaced from each other and are respectively communicated with the coil pipe 20. The jumper tube 50 is used for changing the flow direction of the refrigerant, and the multi-channel flow of the refrigerant can be realized by arranging the jumper tube 50, so that the heat exchange efficiency is improved.
In an embodiment of the present invention, please refer to fig. 1 and fig. 2, the evaporator body 10 further includes two connecting plates 60, the two connecting plates 60 are sleeved on the coil pipe 20 and are disposed on two opposite sides of the evaporator body 10, and the connecting plates 60 have bending portions. The connecting plate 60 is connected with the evaporator body 10 by a threaded fastener or by welding, and fixes the evaporator body 10 to the shell of the heat pump water heater by a bent portion.
In an embodiment of the present invention, referring to fig. 1 to 3, from the top surface of the evaporator body 10 to the bottom surface of the evaporator body 10, the coil 20 is sequentially provided with a refrigerant outlet 22, a refrigerant inlet 21, a second jumper connector 24, a refrigerant inlet 21, a refrigerant outlet 22, and a first jumper connector 23 from top to bottom.
The utility model also provides a heat pump water heater (not shown in the figure), which comprises a shell, the evaporator 100, a compressor and a condenser, wherein the evaporator 100 is arranged in the shell; the compressor is arranged on the shell; the condenser is arranged in the shell; the evaporator 100, the compressor and the condenser are sequentially communicated through a pipeline, and a throttling device is further arranged on a communicating pipeline of the evaporator 100 and the condenser. The specific structure of the evaporator 100 refers to the above embodiments, and since the heat pump water heater adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.
Claims (10)
1. An evaporator for a heat pump water heater, the evaporator comprising:
an evaporator body having a top surface and a bottom surface in a height direction;
the coil pipe, the coil pipe encircles and locates the evaporimeter body forms circulation pipeline, the coil pipe has:
the refrigerant inlet is arranged on the coil pipe and communicated with a throttling device; and
the refrigerant outlet is arranged on the coil pipe and is close to the bottom surface; and
the gas collecting pipe is provided with a gas inlet and a gas outlet, the gas inlet is connected with the refrigerant outlet, and the gas outlet is communicated with the compressor.
2. The evaporator of claim 1, wherein there are two sets of the refrigerant outlets, the two sets of the refrigerant outlets are spaced apart along a height direction of the evaporator body, one of the refrigerant outlets is disposed on the coil and adjacent to the top surface, the other of the refrigerant outlets is disposed on the coil and adjacent to the bottom surface, the gas collecting pipe has two gas inlets and one gas outlet, the gas inlets and the refrigerant outlets are connected through connectors in a one-to-one correspondence, and the gas outlet is communicated with a compressor.
3. The evaporator as claimed in claim 2, wherein each of the refrigerant outlets has two outlet ports, the connector is a Y-shaped tee, and the refrigerant outlet is connected to the inlet port through the Y-shaped tee.
4. The evaporator as claimed in claim 1, wherein there are two sets of the refrigerant inlets, the two sets of the refrigerant inlets are spaced apart along a height direction of the evaporator body, and the two sets of the refrigerant inlets are located between the two sets of the refrigerant outlets, one of the refrigerant inlets is located near a middle portion of the evaporator body, and the other refrigerant inlet is located near a bottom portion of the evaporator body.
5. The evaporator as recited in claim 3, wherein each of said refrigerant inlets has two air inlet ports.
6. The evaporator as recited in claim 5, wherein said refrigerant inlet is communicated with a throttling means through a Y-shaped tee.
7. The evaporator as recited in claim 4, further comprising a jumper tube disposed on and in communication with said coil tube, said coil tube having a first jumper tube interface and a second jumper tube interface, said first jumper tube interface being adjacent to said bottom surface, said second jumper tube interface being disposed between two sets of said refrigerant inlets and adjacent to a middle portion of said evaporator body.
8. The evaporator of claim 7, wherein there are two of said jumper tubes, and said two jumper tubes are spaced one behind the other and are in communication with said coil.
9. The evaporator according to any one of claims 1 to 8, further comprising two connecting plates, wherein the two connecting plates are sleeved on the coil and are arranged on two opposite sides of the evaporator body, and the connecting plates are provided with bent portions.
10. A heat pump water heater, the heat pump water heater includes the casing, its characterized in that, the heat pump water heater still includes:
an evaporator according to any one of claims 1 to 9 provided in the housing;
the compressor is arranged on the shell; and
the condenser is arranged on the shell;
the evaporator, the compressor with the condenser communicates through the pipeline in proper order the evaporator with the communicating pipeline of condenser still is equipped with throttling arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021209959.3U CN212585205U (en) | 2020-06-23 | 2020-06-23 | Evaporator and heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021209959.3U CN212585205U (en) | 2020-06-23 | 2020-06-23 | Evaporator and heat pump water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212585205U true CN212585205U (en) | 2021-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021209959.3U Active CN212585205U (en) | 2020-06-23 | 2020-06-23 | Evaporator and heat pump water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212585205U (en) |
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2020
- 2020-06-23 CN CN202021209959.3U patent/CN212585205U/en active Active
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