CN216592314U - Heat pump unit for preventing defrosting water from being frozen secondarily and heat pump unit - Google Patents
Heat pump unit for preventing defrosting water from being frozen secondarily and heat pump unit Download PDFInfo
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- CN216592314U CN216592314U CN202121990081.6U CN202121990081U CN216592314U CN 216592314 U CN216592314 U CN 216592314U CN 202121990081 U CN202121990081 U CN 202121990081U CN 216592314 U CN216592314 U CN 216592314U
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Abstract
The utility model provides a heat pump unit for preventing defrosting water from being secondarily frozen and a heat pump unit. The water receiving tray is arranged below the fins of the heat pump unit, the end parts of the fins extend into the closed cavity in the water receiving tray, and defrosting water enters the water collecting tray and then is collected to the low-lying position along the slope and is discharged. The inner surface of the water accumulating plate is sprayed with a hydrophobic material, and the bottom of the water accumulating plate is provided with a high-density conical structure to prevent a water film from being formed. The water accumulation plate is also provided with an electric heating belt and a heat insulation layer to maintain the temperature of the cavity in the water accumulation plate to be higher than zero. The technical scheme thoroughly solves the problem of secondary freezing of defrosting water and achieves good technical effect.
Description
Technical Field
The utility model relates to the field of heating ventilation air conditioners, in particular to a heat pump unit.
Background
Air source heat pump set wide application is in high-end buildings such as office building, commercial building, hotel, because of can giving consideration to simultaneously refrigerate and heat, comes the work quantity and the operating condition of adjusting the unit according to the heating of building or refrigeration demand, consequently has received people's favor. However, in the winter heating season in north, the air temperature is usually between-5 ℃ and-25 ℃ or even lower, and the finned heat exchanger of the heat pump unit is easy to frost, so the defrosting procedure needs to be started for defrosting. The defrosting water generally flows into the water-receiving tray. The water pan structure among the prior art is usually open, does not have any auxiliary heating mode and heat preservation and insulation measure, and the defrosting water is easily just the secondary freezing in the water pan when not in time all discharge water pan. The defrosting water is repeatedly melted and frozen, ice blocks in the water accumulation disc are thicker and thicker until the ice blocks are contacted with the fins, so that the heat exchange performance of a unit is influenced, the fins are easily damaged, and the refrigerant leakage of the heat exchanger occurs. Therefore, a technical scheme capable of preventing the defrosting water from being frozen again is needed in the prior art.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects and shortcomings of the prior art, the utility model provides a heat pump unit for preventing defrosting water from being frozen again, wherein the heat pump unit is provided with a height in a first direction vertical to the ground, a width in a second direction vertical to the first direction and a thickness in a third direction vertical to the first direction and the second direction, and a compressor, an evaporator, a condenser and a throttling component are arranged in the heat pump unit; the evaporator comprises a fin heat exchanger and a fan;
the unit is also provided with a water pan which is positioned at the lower part of the fin heat exchanger and extends along the third direction;
fins of the fin heat exchanger extend along a first direction, and the end parts of the fins extend into the water receiving tray;
the water receiving tray is provided with a protective plate and a surrounding groove, and the protective plate and the surrounding groove surround the end parts of the fins and form a closed cavity;
the frost formed on the fins forms water after defrosting and flows downwards into the cavity formed by the water pan along the fins;
the bottom of the water pan is provided with an inclined plane and a drain pipe thereof, the inlet of the drain pipe is positioned at or close to the lowest part of the inclined plane, and the defrosting water on the fins is collected to the lowest part along the inclined plane after entering the water pan and is discharged from the drain pipe;
the bottom of the water pan is provided with a plurality of high-density conical structures or bulges.
Furthermore, the inner wall of the water pan is sprayed with a hydrophobic material.
Furthermore, an insulating layer is attached to the outer surface of the water receiving tray.
Furthermore, an electric heating belt is arranged on the surface of the water receiving tray.
Further, the guard plate is fixed on the side surface of the surrounding groove of the water receiving tray.
Furthermore, a temperature sensor is arranged in the water pan of the unit and used for detecting the temperature in the cavity of the water pan, and the electric heating belt is automatically controlled according to the temperature detected by the sensor, so that the temperature in the cavity of the water pan is maintained to be not lower than zero degrees centigrade.
The utility model also protects a heat pump unit, which is provided with a fin heat exchanger, wherein the fin heat exchanger extends along the direction vertical to the ground;
the unit is also provided with a water pan which is positioned at the lower part of the fins of the fin heat exchanger and extends along the arrangement direction of the fins;
the end parts of the fins of the fin heat exchanger extend into the water pan;
the water receiving tray is provided with a protective plate and a surrounding groove, and the protective plate and the surrounding groove surround the end parts of the fins and form a closed cavity;
the frost formed on the fins forms water after defrosting and flows downwards into the cavity formed by the water pan along the fins;
the bottom of the water pan is provided with an inclined plane and a drain pipe thereof, the inlet of the drain pipe is positioned at or close to the lowest part of the inclined plane, and the defrosting water on the fins is collected to the lowest part along the inclined plane after entering the water pan and is discharged from the drain pipe;
the bottom of the water receiving tray is provided with a plurality of high-density conical structures or bulges;
and the inner wall of the water pan is sprayed with a hydrophobic material.
Furthermore, an insulating layer is attached to the outer surface of the water receiving tray.
Furthermore, an electric heating belt is arranged on the surface of the water receiving tray, a temperature sensor is arranged in the water receiving tray of the unit and used for detecting the temperature in the cavity of the water receiving tray, and the electric heating belt is automatically controlled according to the temperature detected by the sensor, so that the temperature in the cavity of the water receiving tray is maintained to be not lower than zero centigrade.
The utility model can realize the following technical effects:
(1) when the heat pump unit starts a defrosting mode, frost on the fin heat exchanger flows into a closed cavity of the water pan along an aluminum foil in a liquid water mode to prevent water from flowing outwards or splashing outwards, the bottom of the water pan is provided with an inclined plane, one side of the water pan is higher than the other side of the water pan, water flow is collected to the lowest depression along the inclined plane and then is discharged through a drain pipe, and water is prevented from accumulating in the water accumulation pan and being frozen for the second time;
(2) the defrosting water drops into the water collecting tray in the form of water flow or water drops, in order to prevent the water flow/water drops from splashing into water foam and small water drops, a high-density conical structure is fixed at the bottom of the water receiving tray to prevent the water film from being generated and further control the generation of water drops, and finally the purpose that the water drops are not hung on the side surface, namely secondary icing is not achieved;
(3) the heat preservation cotton is pasted around the water receiving tray, the electric heating belt is pasted at the bottom and is next to the sponge wrapped outside the water receiving tray, the surface temperature of the water receiving tray is not lower than 0 ℃ through auxiliary heat supply of the electric heating belt in extremely cold weather, and the heat of the electric heating can be prevented from being rapidly dissipated into the air by the heat preservation cotton
(4) The electric heating belt, the heat preservation cotton, the guard plate, the inner side hydrophobic material, the conical structure and other ways thoroughly solve the phenomenon of secondary icing of the defrosting water.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that are needed in the embodiments or the prior art descriptions will be briefly described below.
Fig. 1 is a schematic view of a heat pump unit for preventing defrosting water from being secondarily frozen provided by the utility model, wherein:
fig. 1(a) is a schematic front view of a heat pump unit for preventing the defrosting water from being secondarily frozen according to the present invention.
Fig. 1(b) is a left side view of fig. 1 (a).
Fig. 1(c) is a plan view of fig. 1 (a).
Fig. 2 is a schematic view of a water pan, wherein:
fig. 2(a) is a front view of the water pan.
FIG. 2(b) is a schematic sectional view taken along line A-A of FIG. 2 (a).
Fig. 2(c) is a left side view of fig. 2 (a).
Fig. 2(d) is a plan view of fig. 2 (a).
Reference numerals: the heat-insulation system comprises a compressor 1, an evaporator 2, a condenser 3, a finned heat exchanger 2-1, a fan 2-2, a protective plate 4-1, a surrounding groove 4-2, an inclined surface 4-3, a water discharge pipe 4-4, a conical structure 4-6 heat-insulation layer 4-5 and an electric heating belt 4-7.
Detailed Description
The utility model will now be described in further detail with reference to the accompanying drawings, which are provided solely for a better understanding of the utility model and are not to be construed as limiting the utility model. All other embodiments, which can be derived by a person skilled in the art from the patented embodiments of the utility model without any inventive step, are within the scope of protection of the utility model.
In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientations or positional relationships thereof are based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second," if any, 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 otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being fixed or detachable or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
The embodiment discloses a heat pump unit for preventing defrosting water from being secondarily frozen. As shown in connection with fig. 1-2. The unit is provided with a height in a first direction perpendicular to the ground, a width in a second direction perpendicular to the first direction and a thickness in a third direction perpendicular to the first direction and the second direction, and the unit is internally provided with a compressor 1, an evaporator 2, a condenser 3 and a throttling component; the evaporator 2 comprises a finned heat exchanger 2-1 and a fan 2-2.
The unit is also provided with a water pan 4, and the water pan 4 is positioned at the lower part of the fin heat exchanger 2-1 and extends along the third direction.
The fins of the fin heat exchanger 2-1 extend along a first direction, and the end parts of the fins extend into the water pan 4.
The water pan 4 is provided with a protective plate 4-1 and a surrounding groove 4-2, and the protective plate and the surrounding groove surround the end parts of the fins and form a closed cavity. Specifically, as shown in fig. 2(b), the protective plate 4-1 is fixed on the side face of the surrounding groove 4-2 of the water pan, the protective plate 4-1 extends upwards and inclines towards the fins, and when the fins extend into the water pan, the protective plate 4-1 can be lapped on the side faces of the fins, so that the water pan forms a closed cavity wrapping the fins, and defrosting water can conveniently fall into the water pan and heat loss is prevented.
The frost formed on the fins forms water after defrosting and flows downwards into the cavity formed by the water pan along the fins.
The bottom of the water pan is provided with an inclined plane 4-3 and a drain pipe 4-4 thereof, the inlet of the drain pipe 4-4 is positioned at or close to the lowest part of the inclined plane, and the defrosting water on the fins is collected to the lowest part along the inclined plane after entering the water pan and is discharged from the drain pipe. As shown in fig. 2(a), the inclined surface forms an included angle α with the horizontal plane, and the included angle α may be set according to requirements, for example, may be 5 ° to 30 °, and may be 5 ° to 15 ° in a preferred embodiment. This range of values is merely illustrative and should not be construed as limiting the scope of the utility model as claimed.
As shown in fig. 2(b) and 2(c), the bottom of the water-receiving tray is provided with a plurality of high-density conical structures 4-5 or bulges. The conical structures 4-5 or the protrusions have the function of preventing water films from being generated and further controlling the generation of water drops, and finally the purpose that the water drops are not hung on the side face is achieved, namely secondary icing is not performed. Therefore, when the defrosting water flows into the water receiving tray, even if the water film is formed, the water film can be punctured by the conical structure or the bulge, so that the production of the water film is prevented.
In an optimized embodiment, the inner wall of the water pan can be sprayed with a hydrophobic material, under the action of the hydrophobic material, a water film is more difficult to attach to the surface of the water pan, and water drops easily slide off from the surface of the inner cavity of the water pan, so that the defrosting water is discharged.
The water collector material is the sheet metal component usually, because its specific heat capacity is big, heat absorption capacity is strong, therefore its surface temperature is less than ambient temperature far away in cold areas, in order to prevent that the heat of defrosting water from being absorbed by the water collector, can paste around the water collector and establish heat preservation 4-6, and the heat preservation can be heat preservation cotton or other insulation material in specific embodiment. Meanwhile, the bottom of the water receiving tray is attached with an electric heating belt 4-7, and the electric heating belt 4-7 is next to the outside of the water receiving tray and then wraps the sponge. In an optimized embodiment, a temperature sensor is arranged in a water pan of the unit, the temperature sensor detects the temperature in a cavity of the water pan, and the electric heating belt performs automatic control according to the temperature detected by the sensor. Under extremely cold weather, the surface temperature of the water pan is ensured to be not lower than 0 ℃ by auxiliary heat supply of the electric heating belt, thereby preventing the defrosting water from being frozen again. The heat preservation can prevent that the heat of electric heating belt from being dispersed in the air fast.
The embodiment can realize the following technical effects:
when the heat pump unit starts a defrosting mode, frost on the fin heat exchanger flows into the water pan along the aluminum foil in a liquid water mode, the bottom of the water pan is provided with an inclined plane, one side of the water pan is higher than the other side of the water pan, water flow is collected to the lowest depression along the inclined plane and then discharged through the drain pipe, and water is prevented from accumulating in the water accumulation pan and being frozen secondarily. Defrosting water gets into the ponding dish with rivers or drop drippage, in order to prevent that rivers/drop splash from becoming water foam and little drop, at the fixed cone structure of a high density in the bottom of water collector, prevent that the water film from generating and then control and generate the drop, finally reach the purpose that the side does not hang the drop, do not freeze for the second time promptly. The heat preservation cotton is pasted around the water receiving tray, and simultaneously, the electric heating belt is pasted at the bottom and is next to the sponge of wrapping up outside the water receiving tray, and through the supplementary heat supply of electric heating belt under extremely cold weather, guarantee that water receiving tray surface temperature is not less than 0 ℃, the cotton effect of heat preservation can prevent that the heat of electric heating from being given off in the air fast. In addition, the two side guard plates are fixed on the side surface of the water pan, and a closed cavity is formed by the two side guard plates and the fin heat exchanger, so that heat loss is greatly reduced. The electric heating belt, the heat preservation cotton, the guard plate, the inner side hydrophobic material, the conical structure and other ways thoroughly solve the phenomenon of secondary icing of the defrosting water.
Example 2
The embodiment discloses a heat pump unit, which is provided with a fin heat exchanger, wherein the fin heat exchanger extends along the direction vertical to the ground;
the unit is also provided with a water pan which is positioned at the lower part of the fins of the fin heat exchanger and extends along the arrangement direction of the fins;
the end parts of the fins of the fin heat exchanger extend into the water pan;
the water receiving tray is provided with a protective plate and a surrounding groove, and the protective plate and the surrounding groove surround the end parts of the fins and form a closed cavity;
the frost formed on the fins forms water after defrosting and flows downwards into the cavity formed by the water pan along the fins;
the bottom of the water pan is provided with an inclined plane and a drain pipe thereof, the inlet of the drain pipe is positioned at or close to the lowest part of the inclined plane, and the defrosting water on the fins is collected to the lowest part along the inclined plane after entering the water pan and is discharged from the drain pipe;
the bottom of the water receiving tray is provided with a plurality of high-density conical structures or bulges;
and the inner wall of the water pan is sprayed with a hydrophobic material.
Furthermore, an insulating layer is attached to the outer surface of the water receiving tray.
In an optimized embodiment, an electric heating belt is arranged on the surface of the water pan, a temperature sensor is arranged in the water pan of the unit and used for detecting the temperature in the cavity of the water pan, and the electric heating belt is automatically controlled according to the temperature detected by the sensor, so that the temperature in the cavity of the water pan is maintained to be not lower than zero degrees centigrade.
The above embodiments are only used for explaining the present invention, and the structure, connection mode, manufacturing process, etc. of the components may be changed, and all equivalent changes and modifications performed on the basis of the technical solution should not be excluded from the protection scope of the present invention.
Claims (9)
1. A heat pump unit for preventing defrosting water from being frozen again is provided with a height in a first direction perpendicular to the ground, a width in a second direction perpendicular to the first direction and a thickness in a third direction perpendicular to the first direction and the second direction, and a compressor, an evaporator, a condenser and a throttling component are arranged in the heat pump unit; the evaporator comprises a fin heat exchanger and a fan; the method is characterized in that:
the unit is also provided with a water pan which is positioned at the lower part of the fin heat exchanger and extends along the third direction;
fins of the fin heat exchanger extend along a first direction, and the end parts of the fins extend into the water receiving tray;
the water receiving tray is provided with a protective plate and a surrounding groove, and the protective plate and the surrounding groove surround the end parts of the fins and form a closed cavity;
the frost formed on the fins forms water after defrosting and flows downwards into the cavity formed by the water pan along the fins;
the bottom of the water pan is provided with an inclined plane and a drain pipe thereof, the inlet of the drain pipe is positioned at or close to the lowest part of the inclined plane, and the defrosting water on the fins is collected to the lowest part along the inclined plane after entering the water pan and is discharged from the drain pipe;
the bottom of the water pan is provided with a plurality of high-density conical structures or bulges.
2. The assembly according to claim 1, characterized in that: and the inner wall of the water pan is sprayed with a hydrophobic material.
3. The assembly according to claim 1, characterized in that: an insulating layer is attached to the outer surface of the water receiving tray.
4. The assembly according to claim 1, characterized in that: and an electric heating belt is arranged on the surface of the water receiving tray.
5. The assembly according to claim 1, characterized in that: the guard plate is fixed on the side surface of the surrounding groove of the water receiving tray.
6. The assembly according to claim 4, characterized in that: a temperature sensor is arranged in a water receiving tray of the unit and used for detecting the temperature in the cavity of the water receiving tray, and the electric heating belt is automatically controlled according to the temperature detected by the sensor, so that the temperature in the cavity of the water receiving tray is maintained to be not lower than zero degrees centigrade.
7. A heat pump set, the set has fin heat exchanger, its characterized in that: the fin heat exchanger extends along the direction vertical to the ground;
the unit is also provided with a water pan which is positioned at the lower part of the fins of the fin heat exchanger and extends along the arrangement direction of the fins;
the end parts of the fins of the fin heat exchanger extend into the water pan;
the water receiving tray is provided with a protective plate and a surrounding groove, and the protective plate and the surrounding groove surround the end parts of the fins and form a closed cavity;
after defrosting, the frost formed on the fins forms water and flows downwards into a cavity formed by the water pan along the fins;
the bottom of the water pan is provided with an inclined plane and a drain pipe thereof, the inlet of the drain pipe is positioned at or close to the lowest part of the inclined plane, and the defrosting water on the fins is collected to the lowest part along the inclined plane after entering the water pan and is discharged from the drain pipe;
the bottom of the water receiving tray is provided with a plurality of high-density conical structures or bulges;
and the inner wall of the water pan is sprayed with hydrophobic materials.
8. The assembly according to claim 7, characterized in that: and the outer surface of the water receiving tray is attached with a heat-insulating layer.
9. The assembly according to claim 8, characterized in that: the surface of the water pan is provided with an electric heating belt, a temperature sensor is arranged in the water pan of the unit, the temperature sensor detects the temperature in the cavity of the water pan, and the electric heating belt performs automatic control according to the temperature detected by the sensor, so that the temperature in the cavity of the water pan is maintained to be not lower than zero degrees centigrade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121990081.6U CN216592314U (en) | 2021-08-23 | 2021-08-23 | Heat pump unit for preventing defrosting water from being frozen secondarily and heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121990081.6U CN216592314U (en) | 2021-08-23 | 2021-08-23 | Heat pump unit for preventing defrosting water from being frozen secondarily and heat pump unit |
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|---|---|
| CN216592314U true CN216592314U (en) | 2022-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121990081.6U Active CN216592314U (en) | 2021-08-23 | 2021-08-23 | Heat pump unit for preventing defrosting water from being frozen secondarily and heat pump unit |
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| CN (1) | CN216592314U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669949A (en) * | 2021-08-23 | 2021-11-19 | 银川华誉智慧能源科技有限公司 | Heat pump unit for preventing defrosting water from being secondarily frozen, heat pump unit and method for preventing defrosting water from being secondarily frozen |
-
2021
- 2021-08-23 CN CN202121990081.6U patent/CN216592314U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669949A (en) * | 2021-08-23 | 2021-11-19 | 银川华誉智慧能源科技有限公司 | Heat pump unit for preventing defrosting water from being secondarily frozen, heat pump unit and method for preventing defrosting water from being secondarily frozen |
| CN113669949B (en) * | 2021-08-23 | 2024-09-17 | 银川华誉智慧能源科技有限公司 | Heat pump unit for preventing secondary freezing of defrosting water, heat pump unit and method for preventing secondary freezing of defrosting water |
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