Air source heat pump and drainage channel thereof
By introducing a heat recovery hood into the air source heat pump drain tank, the air inside the drain tank is heated by the heat from the compressor exhaust, which solves the problem of icing at the bottom of the fins and achieves energy-saving effect without electric heating.
Patent Information
- Application Number
- CN202520162457.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-23
AI Technical Summary
In high-humidity and cold regions, the bottom of the fins of air-source heat pumps is prone to icing. Existing technologies require the use of electric heating equipment to prevent icing, resulting in energy waste.
Design a drainage channel including an upper panel, a front panel, a lower panel, a rear panel, and a heat recovery cover. Utilize the heat from the compressor exhaust to heat the air inside the drainage channel, preventing icing and eliminating the need for electric heating equipment.
It effectively prevents ice formation on the upper surface of the drainage channel, saves energy, avoids deformation or damage to the finned heat exchanger, and improves the efficiency of the heat pump.
Smart Images
Figure CN223741035U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to air source heat pump equipment technical field, especially relates to an air source heat pump and its drainage tank. BACKGROUND
[0002] In high humidity and high cold area, air source heat pump is used for heating in winter, the environment humidity of air source heat pump is higher, average humidity is 85%, and the environment temperature is also lower, usually as low as-10 to-20 DEG C. High humidity adds abundant latent heat for air source heat pump, and also brings frequent defrosting, ice climbing on fin bottom, ice formation on defrosting water drainage tank and drainage plate and other problems. Defrosting water has begun to freeze when it has not been drained in low temperature environment after air source heat pump defrosting. Ice layer formed day after day is thicker and thicker, and even some ice layer has frozen on fin heat exchanger, and defrosting water expands after freezing to cause fin heat exchanger deformation or damage.
[0003] In prior art, air source heat pump special for high humidity and high cold area, for the problems of ice climbing on fin bottom, drainage tank and drainage plate ice formation, conventional method is to make drainage tank and drainage plate into double layer, leave cavity in the middle as interlayer, and lay electric heating heat tracing band in the interlayer to consume electric energy to prevent ice formation and thaw ice, and electric heating is usually manually switched on and off, and a lot of electric energy is wasted when the unit is temporarily stopped. SUMMARY
[0004] The first technical problem to be solved by the utility model is to provide a drainage tank, which does not need to use electric heating equipment to prevent ice formation and can effectively save energy.
[0005] To solve the above technical problems, the technical scheme of the utility model is as follows:
[0006] A drainage tank, which comprises an upper surrounding plate, a front surrounding plate, a lower surrounding plate and a rear surrounding plate, the upper surrounding plate, the front surrounding plate, the lower surrounding plate and the rear surrounding plate are sequentially connected to enclose an inner cavity, and the inner cavity has a left opening and a right opening; the drainage tank further comprises a right surrounding plate, the right surrounding plate seals the right opening; the drainage tank further comprises a heat recovery cover, the heat recovery cover is fixedly connected below the lower surrounding plate, the heat recovery cover has a cover cavity, and the cover cavity is in communication with the inner cavity.
[0007] Further, a ventilation hole is arranged on the heat recovery cover, and the ventilation hole is in communication with the cover cavity and the atmosphere.
[0008] Further, a plurality of ventilation holes are arranged in the circumferential direction.
[0009] Further, the upper surface of the upper surrounding plate is in V-shaped structure, arc-shaped structure or elliptical structure.
[0010] Further, a heat preservation layer is arranged on the inner side of the lower surrounding plate.
[0011] Further, the heat preservation layer is a rubber heat preservation layer.
[0012] Based on a total inventive concept, a second technical problem to be solved by the utility model is to provide an air source heat pump which does not need to use an electric heating device to prevent icing and can effectively save energy.
[0013] An air source heat pump comprises a frame, a finned heat exchanger and a compressor arranged on the frame, and a drain groove as described above arranged on the frame, wherein the drain groove is located below the finned heat exchanger, and the cover cavity of the heat recovery cover is in communication with the exhaust cavity of the compressor.
[0014] Further, a sealing ring is arranged between the inner wall of the heat recovery cover and the outer wall of the exhaust cavity.
[0015] Further, the sealing ring is a rubber sealing ring.
[0016] Further, the drain groove is arranged obliquely, and the left end of the drain groove is higher than the right end of the drain groove.
[0017] Thanks to the above technical scheme, the utility model has the following beneficial effects:
[0018] The drain groove comprises an upper baffle, a front baffle, a lower baffle and a rear baffle, which are sequentially connected to enclose an inner cavity, and the inner cavity has a left opening and a right opening; the drain groove further comprises a right baffle which blocks the right opening; the drain groove further comprises a heat recovery cover which is fixedly connected below the lower baffle and has a cover cavity in communication with the inner cavity. In use, the cover cavity of the heat recovery cover is in communication with the exhaust cavity of the compressor, and the heat recovered by the compressor is used to heat the air in the inner cavity to prevent icing on the upper surface of the upper baffle of the drain groove, so that the electric heating device is not needed to prevent icing on the upper surface of the upper baffle of the drain groove, and energy can be effectively saved. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 is a structural schematic view of the drain groove of the utility model;
[0020] Figure 2 is a structural schematic view of the air source heat pump of the utility model;
[0021] In the drawings, 1 is a mounting bracket; 2 is a drain groove; 21 is an upper baffle; 22 is a lower baffle; 23 is a front baffle; 24 is a rear baffle; 25 is a right baffle; 26 is a heat recovery cover; 261 is a vent hole; 27 is a sealing ring; 3 is a finned heat exchanger; 4 is a compressor; and 5 is a frame. DETAILED DESCRIPTION
[0022] The utility model is further illustrated below in combination with the drawings and embodiments.
[0023] Embodiment one:
[0024] In combination with Figure 1 As shown in the drawings, a drainage groove 2 comprises an upper surrounding plate 21, a front surrounding plate 23, a lower surrounding plate 22, and a rear surrounding plate 24, the upper surrounding plate 21, the front surrounding plate 23, the lower surrounding plate 22, and the rear surrounding plate 24 are sequentially connected to enclose an inner cavity, and the inner cavity has a left opening and a right opening.
[0025] The drainage groove 2 further comprises a right surrounding plate 25, and the right surrounding plate 25 blocks the right opening. The drainage groove 2 further comprises a heat recovery cover 26, and the heat recovery cover 26 is fixedly connected below the lower surrounding plate 22. The heat recovery cover 26 has a cover cavity, and the cover cavity is in communication with the inner cavity.
[0026] Preferably, an air vent 261 is arranged on the heat recovery cover 26, and the air vent 261 is in communication between the cover cavity and the outside atmosphere.
[0027] Further preferably, a plurality of air vents 261 are arranged circumferentially. A damper is further arranged at each air vent 261, and the damper can adjust the size of the air volume.
[0028] Preferably, the upper surface of the upper surrounding plate 21 is in a V-shaped structure, an arc-shaped structure, or an elliptical structure.
[0029] Preferably, an insulating layer (not shown in the drawings) is arranged on the inner side of the lower surrounding plate 22.
[0030] Further preferably, the insulating layer is an insulating layer made of rubber.
[0031] Embodiment two:
[0032] In combination with Figure 1 and Figure 2 As shown in the drawings, the utility model further discloses an air source heat pump, which comprises a frame 5, a finned heat exchanger 3 and a compressor 4 are arranged on the frame 5, and the drainage groove 2 of embodiment one is further arranged on the frame 5. The drainage groove 2 is fixedly installed on the frame 5 through two mounting brackets 1, and the drainage groove 2 is located below the finned heat exchanger 3. The drainage groove 2 is arranged obliquely, and the left end of the drainage groove 2 is higher than the right end of the drainage groove 2, so that the defrosting water is more convenient to flow out.
[0033] The cover cavity of the heat recovery cover 26 is in communication with the exhaust cavity of the compressor 4. Preferably, a sealing ring 27 is arranged between the inner wall of the heat recovery cover 26 and the outer wall of the exhaust cavity.
[0034] Further preferably, the sealing ring 27 is a sealing ring made of rubber.
[0035] The process of preventing the upper surface of the upper surrounding plate 21 of the drain groove 2 from icing is described in detail as follows:
[0036] When the air source heat pump of the utility model runs in winter, the air in the outside atmosphere enters into the cover cavity of the heat recovery cover 26 through the air hole 261 in the process of running, the heat dissipated by the exhaust cavity of the recovery compressor 4 heats the air inside the cover cavity, the heated air enters into the inner cavity of the drain groove 2, the left end of the inner cavity is open, the right end of the inner cavity is closed, which facilitates the circulation of the heated air. Because the drain groove 2 is arranged obliquely, the height of the left end of the drain groove 2 is higher than that of the right end, the heat recovery cover 26 is arranged close to the right end of the drain groove 2, the air flows from bottom to top in the inner cavity after being heated, the defrosting water on the upper surface of the upper surrounding plate 21 of the drain groove 2 flows from top to bottom, the flowing speed of the water is accelerated, the heat exchange effect is better, and the defrosting water can be completely drained.
[0037] Meanwhile, the inner side of the lower surrounding plate 22 of the drain groove 2 is paved with the heat preservation layer of rubber plastic heat preservation material, the heat can only be transmitted to the direction of the upper surrounding plate 21, the ice layer is further prevented from being formed on the upper surface of the upper surrounding plate 21 of the drain groove 2, and the defrosting water can be completely drained. The upper surrounding plate 21 is heated, the defrosting water on the upper surface of the upper surrounding plate 21 is prevented from icing by the heat dissipated by the exhaust cavity of the recovery compressor 4, and no electric energy needs to be invested to prevent icing and thaw ice, so that the air source heat pump has good energy-saving effect.
[0038] In the description of the present application, it should be understood that the orientation or position relationship described by "upper surrounding plate", "lower surrounding plate", "front surrounding plate", "rear surrounding plate", "right surrounding plate", "lower", "left open", "right open", "upper surface", "outer wall", "inner wall", "inner cavity", "inner side", "from top to bottom", "from bottom to top" is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model.
[0039] Although the specific embodiments of the utility model are described above, those skilled in the art should understand that the described embodiments are only part of the embodiments of the utility model, not all the embodiments, which are only examples, and the protection scope of the utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to the embodiments without departing from the principles and essence of the utility model, and without any creative labor, but the changes and modifications all fall within the protection scope of the utility model.
Claims
1. A gutter characterized in that, The drainage groove comprises an upper surrounding plate, a front surrounding plate, a lower surrounding plate, and a rear surrounding plate, which are sequentially connected to enclose an inner cavity, the inner cavity has a left opening and a right opening; the drainage groove further comprises a right surrounding plate, which blocks the right opening; the drainage groove further comprises a heat recovery cover, which is fixedly connected below the lower surrounding plate, the heat recovery cover has a cover cavity, and the cover cavity is in communication with the inner cavity.
2. The drain tub of claim 1, wherein, The heat recovery cover is provided with a ventilation hole, which is in communication with the cover cavity and the external atmosphere.
3. The drain tub according to claim 2, wherein, A plurality of ventilation holes are circumferentially arranged.
4. The drain tub according to claim 1, wherein, The upper surface of the upper surrounding plate is in a V-shaped structure, an arc-shaped structure, or an elliptical structure.
5. The drain tub according to claim 1, wherein, The inner side of the lower surrounding plate is provided with a heat preservation layer.
6. The drain tub according to claim 5, wherein, The heat preservation layer is made of rubber.
7. An air source heat pump comprising a frame on which is provided a finned heat exchanger and a compressor, characterised in that, The frame is further provided with the drainage groove as claimed in any one of claims 1-6, the drainage groove is located below the finned heat exchanger, and the cover cavity of the heat recovery cover is in communication with the exhaust cavity of the compressor.
8. The air source heat pump of claim 7, wherein, A sealing ring is arranged between the inner wall of the heat recovery cover and the outer wall of the exhaust cavity.
9. The air source heat pump of claim 8, wherein, The sealing ring is made of rubber.
10. The air source heat pump of claim 7, wherein, The drainage groove is arranged in an inclined manner, and the left end of the drainage groove is higher than the right end of the drainage groove.