Heat pump unit heat exchanger with defrost drainage support structure
By designing a heat pump unit heat exchanger with a support structure for melt frost drainage, the problem of difficult to effectively discharge melt frost water under low temperature conditions in the prior art is solved, and effective drainage and energy efficiency protection under low temperature conditions are achieved.
Patent Information
- Application Number
- CN202421397844.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-06-18
AI Technical Summary
It is difficult for existing heat pump units to effectively discharge melt frost water under low temperature conditions, which affects the energy efficiency performance of the unit.
A heat pump unit heat exchanger with a support structure for melt frost drainage is designed, and a combination structure of a pointed bracket body, a water connection tank, a drain pipe and a heating belt fixture is adopted to ensure effective drainage under low temperature conditions.
This structure effectively prevents the bottom of the heat exchanger from freezing under low temperature conditions, ensures the heating energy efficiency of the unit, and prevents melt-frost water from splashing through the design of the drain pipe and rubber hose, and protects the refrigeration components inside the unit.
Smart Images
Figure CN222747539U_ABST
Abstract
Description
Technical Field
[0001] The utility model discloses a support structure with defrosting and drainage function for a heat exchanger of a heat pump unit, which relates to the technical field of heat exchanger accessories, and in particular to a support structure with defrosting function for drainage of a heat exchanger of a heat pump unit. Background Art
[0002] The attention paid to heat pump units in China has increased significantly. In order to make their products more competitive, manufacturers will improve the energy efficiency performance of the units in details. Among them, defrosting is a more popular focus. Allowing the unit to defrost at the appropriate time and effectively draining the defrost water is an issue that needs to be considered in both control logic and structural design.
[0003] In view of the problems existing in the above-mentioned prior art, it is very necessary to study and design a new type of heat pump unit heat exchanger with defrost drainage support structure, so as to overcome the problems existing in the prior art. Summary of the invention
[0004] According to the above-mentioned prior art, draining away the defrost water effectively is a technical problem that is considered jointly by control logic and structural design, and a support structure for heat exchanger with defrost drainage for heat pump unit is provided. The utility model mainly utilizes the structural design with self-contained drainage groove, combined with the use of heating belt, to more effectively ensure that the unit has good drainage performance under low temperature or even ultra-low temperature conditions.
[0005] The technical means adopted by the utility model are as follows:
[0006] A support structure for a heat exchanger with defrosting and drainage function for a heat pump unit comprises: a support body, a water receiving trough, a drain pipe, a heating belt fixing part and a heating belt;
[0007] Furthermore, the bracket body is a long strip structure made of metal sheet with a pointed cross section, the pointed corners are upward, and the left and right inclined parts are in contact with the bottom of the heat exchanger;
[0008] Furthermore, there are two water receiving grooves, which are made of metal plates through bending and welding to form a groove structure, and are symmetrically arranged on both sides of the bracket body as extensions of the left and right oblique parts of the bracket body;
[0009] Furthermore, the drain pipe is supported by a stainless steel seamless steel pipe and is welded and assembled with a circular hole preset at one end of the water receiving trough;
[0010] Furthermore, the heating belt fixing piece is a concave structure, and a plurality of heating belt fixing pieces are evenly distributed and welded to the bottom of the water receiving trough for fixing the heating belt.
[0011] Furthermore, the pointed angle of the bracket body is related to the inclination angle of the heat exchanger, and the pointed angle is between 130° and 135°, and the left and right inclined parts are of equal length.
[0012] Furthermore, the four ends of the water receiving trough need to be fully sealed by spray-coating galvanized steel plates of equal thickness, and the height should be the same as the outermost vertical part of the water receiving trough.
[0013] Furthermore, the drain pipe is preset at a distance of 100 mm from one end of the water receiving trough;
[0014] Furthermore, the caliber of the drain pipe needs to be greater than 25mm and the length should be 100mm-150mm;
[0015] Furthermore, a heat-insulating material is pasted on the outer side of the pipe wall of the drain pipe.
[0016] Furthermore, the heating belt fixing parts are evenly distributed at the bottom of the left and right water receiving tanks within an interval of 300 mm.
[0017] Furthermore, after the heating belt is fixed, a thermal insulation material needs to be pasted to cover the heating belt and the heating belt fixing parts.
[0018] Furthermore, during the installation of the bracket body, the drain pipe needs to be placed at a low position, inclined at 1° from the horizontal.
[0019] Furthermore, a rubber hose is connected to the bottom of the drain pipe to prevent the defrost water from splashing onto the refrigeration components inside the unit.
[0020] Furthermore, the bracket body is also preset with a cutout to avoid interference with the heat exchanger air pipe or header;
[0021] Furthermore, the bracket body is also preset with mounting holes, which can be used to install a triangle plate and a temperature probe bracket.
[0022] Compared with the prior art, the utility model has the following advantages:
[0023] 1. The heat exchanger of the heat pump unit provided by the utility model has a defrosting and drainage support structure, which adopts a pre-prepared pointed structure, and forms left and right water tanks by bending and welding. A drain pipe is set at the low point of the left and right water tanks. When the unit is running in the defrosting program, the pointed bottom heating belt is started to prevent ice from forming in the left and right water tanks. This structure can prevent ice from forming at the bottom of the heat exchanger under low ambient temperature conditions, which affects the heating efficiency.
[0024] 2. The heat exchanger of the heat pump unit provided by the utility model has a support structure for defrosting and drainage, and a rubber hose is installed at the bottom of the drain pipe to prevent defrosting water from splashing on the refrigeration components inside the unit.
[0025] In summary, the technical solution of the utility model solves the problem of effectively draining away the defrost water in the prior art, which is a problem that requires joint consideration of control logic and structural design. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0027] Figure 1 This is an axonometric view of the utility model;
[0028] Figure 2 This is the lower axonometric view of the utility model;
[0029] Figure 3 This is the front view of the utility model in the assembled state;
[0030] Figure 4 It is a three-dimensional diagram of the utility model in the assembled state.
[0031] In the figure: 1, bracket body 2, water receiving trough 3, drain pipe 4, heating belt fixing part 5, heating belt. DETAILED DESCRIPTION
[0032] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0034] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0035] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, numerical expressions and numerical values do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0036] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0037] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0038] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.
[0039] As shown in the figure, the utility model provides a support structure for a heat exchanger of a heat pump unit with defrosting and drainage, including: a support body 1, a water receiving trough 2, a drain pipe 3, a heating belt fixing part 4 and a heating belt 5; the support body 1 is a long strip structure made of metal sheet with a pointed cross-section, the pointed corners are upward, and the left and right oblique parts are in contact with the bottom of the heat exchanger; there are two water receiving troughs 2, and the metal sheet is bent and welded to form a trough structure, which is symmetrically arranged on both sides of the support body 1 as an extension of the left and right oblique parts of the support body 1; the drain pipe 3 is supported by a stainless steel seamless steel pipe, and is welded and assembled with a preset circular hole at one end of the water receiving trough 2; the heating belt fixing part 4 is a concave structure, and a plurality of heating belt fixing parts 4 are evenly distributed and welded to the bottom of the water receiving trough 2, for fixing the heating belt 5.
[0040] The pointed angle of the bracket body 1 is related to the tilt angle of the heat exchanger, and the pointed angle is between 130° and 135°, and the left and right inclined parts are of equal length.
[0041] The four ends of the water receiving trough 2 need to be sprayed with galvanized steel plates of equal thickness and fully welded and sealed, and the height should be the same as the outermost vertical part of the water receiving trough 2.
[0042] The drain pipe 3 is preset at a distance of 100 mm from one end of the water receiving trough 2; the diameter of the drain pipe 3 needs to be greater than 25 mm, and the length is 100 mm-150 mm; the outer side of the pipe wall of the drain pipe 3 is pasted with thermal insulation material.
[0043] The heating belt fixing members 4 are evenly distributed at the bottom of the left and right water receiving tanks 2 within a spacing of 300 mm.
[0044] After the heating belt 5 is fixed, a heat-insulating material needs to be pasted to cover the heating belt 5 and the heating belt fixing member 4 .
[0045] During the installation of the bracket body 1, the drain pipe 3 needs to be placed at a low position, with an inclination of 1° with the horizontal.
[0046] A rubber hose is connected to the bottom of the drain pipe 3 to prevent the defrost water from splashing onto the refrigeration components inside the unit.
[0047] The bracket body 1 also has a preset cutout to avoid interference with the heat exchanger air pipe or header; the bracket body 1 also has a preset mounting hole, which can be used to install a triangle plate, a temperature probe bracket, etc.
[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A support structure for heat exchanger of a heat pump unit with defrosting and drainage function, characterized in that: The support structure for a heat exchanger with defrosting and drainage function for a heat pump unit comprises: a support body (1), a water receiving trough (2), a drain pipe (3), a heating belt fixing part (4) and a heating belt (5); The support body (1) is a long strip structure made of metal sheet with a pointed cross section, the pointed corners facing upwards, and the left and right inclined parts fitting the bottom of the heat exchanger; There are two water receiving grooves (2), which are made of metal plates through bending and welding to form a groove-shaped structure, and are symmetrically arranged on both sides of the bracket body (1) as extended parts of the left and right oblique parts of the bracket body (1); The drain pipe (3) is supported by a stainless steel seamless steel pipe and is welded and assembled with a circular hole preset at one end of the water receiving trough (2); The heating belt fixing member (4) is a concave structure, and a plurality of heating belt fixing members (4) are evenly distributed and welded to the bottom of the water receiving trough (2) to fix the heating belt (5).
2. The support structure for heat exchanger with defrost drainage for heat pump unit according to claim 1, characterized in that: The pointed angle of the support body (1) is related to the inclination angle of the heat exchanger, and its pointed angle is between 130° and 135°, and the left and right inclined parts are of equal length.
3. The support structure for heat exchanger with defrost drainage for heat pump unit according to claim 1, characterized in that: The four ends of the water receiving trough (2) need to be spray-coated with galvanized steel plates of equal thickness and fully welded and sealed, and the height should be the same as the outermost vertical part of the water receiving trough (2).
4. The support structure for heat exchanger with defrost drainage for heat pump unit according to claim 1, characterized in that: The drain pipe (3) is preset at a distance of 100 mm from one end of the water receiving trough (2); The caliber of the drain pipe (3) should be greater than 25 mm and the length should be 100 mm-150 mm; The outer side of the pipe wall of the drain pipe (3) is pasted with a heat-insulating material.
5. The support structure for heat exchanger with defrost drainage for heat pump unit according to claim 1, characterized in that: The heating belt fixing parts (4) are evenly distributed at the bottom of the left and right water receiving grooves (2) within an interval of 300 mm.
6. The support structure for heat exchanger with defrosting and drainage function of heat pump unit according to claim 1, characterized in that: After the heating belt (5) is fixed, a heat-insulating material needs to be pasted to cover the heating belt (5) and the heating belt fixing member (4).
7. The support structure for heat exchanger with defrosting and drainage function of heat pump unit according to claim 1, characterized in that: During the installation of the support body (1), the drain pipe (3) needs to be placed at a low position, with an inclination of 1° with respect to the horizontal.
8. The support structure for heat exchanger with defrost drainage for heat pump unit according to claim 1, characterized in that: The bottom of the drain pipe (3) is connected to a rubber hose to prevent the defrosted water from splashing onto the refrigeration components inside the unit.
9. The support structure for heat exchanger with defrosting and drainage function of heat pump unit according to claim 1, characterized in that: The support body (1) is also provided with a preset cutout to avoid interference with the heat exchanger air pipe or header; The bracket body (1) is also provided with a preset mounting hole, on which a triangle plate and a temperature probe bracket can be mounted.