Heat exchanger of air source two-stage coupling heat pump unit

Abstract

The utility model discloses a heat exchanger of an air source two-stage coupling heat pump unit, which relates to the related field of air source heat pumps and comprises a bottom frame, a fixing block is fixedly welded at the bottom of the bottom frame, a top cover main body is mounted at the top of the bottom frame through bolts, and a rain and snow prevention device is arranged at the top of the top cover main body. Air is filtered and dried through a dustproof sleeve and a drying layer, in this way, the situation that rain and snow obliquely enter due to the fact that the wind direction is changed can be prevented through a partition sleeve and a rain shielding cover, and the device can filter and dry the entering air; the noise elimination device is arranged at the bottom of the top cover body, heat is guided through the heat conduction layer to be evenly heated, condensate water generated in the working process can be drained in a concentrated mode, the liquid collection disc is evenly heated, and then the situation that the heat exchange amount of a unit is suddenly reduced due to the fact that the condensate water is frozen and spreads to a heat exchanger is avoided; and noise generated by the heat pump unit can be subjected to energy absorption and noise reduction through the sound absorption cotton.

Description

Technical Field

[0001] The utility model relates to the relevant field of air source heat pumps, in particular to a heat exchanger of an air source two-stage coupled heat pump unit. Background Art

[0002] An air source heat pump is an energy-saving device that uses high-level energy to make heat flow from a low-level heat source to a high-level heat source. It is a form of heat pump. The air source heat pump uses the refrigerant compression refrigeration and heat release cycle working principle, and uses the heat source in the ambient air as the low-temperature heat source. It exchanges heat through the condenser or evaporator in a traditional air conditioner, and then releases heat energy through a circulating heat exchange system. Finally, the water pump circulation heat exchange system is used to transfer energy to the building to meet users' needs for domestic hot water, floor heating or air conditioning.

[0003] In the prior art, when the unit is in a low temperature area and there is a lot of rain and snow, it is difficult for the equipment to protect the fan. Once the snow falls, it is easy to cause the fan to freeze, making the equipment unable to operate normally, and the large amount of dust entering from the outside can easily cause damage to the equipment; and in the prior art, many air source two-stage coupled heat pump units have condensate water drain outlets directly opened on the chassis. The openings are numerous and not concentrated, and the drainage is not smooth, making it difficult to collect the condensate and then discharge it out of the unit. When the ambient temperature is below 0 degrees, the condensate on the chassis will condense into ice. As the heat pump unit continues to run, the ice will spread to the heat exchanger of the unit, thereby affecting the performance of the heat pump unit, and the noise generated by the operation of the heat pump unit will have a greater impact on the lives of residents outside. Utility Model Content

[0004] Therefore, in order to solve the above-mentioned deficiencies, the utility model provides a heat exchanger for an air source two-stage coupled heat pump unit.

[0005] The utility model is implemented in this way, constructing a heat exchanger of an air source two-stage coupled heat pump unit, the device comprises a bottom frame, a fixing block is welded and fixed at the bottom of the bottom frame, a top cover body is bolted to the top of the bottom frame, a fan cover is arranged on the top of the top cover body, and a heat exchanger is arranged at the bottom of the top cover body; a rain and snow protection device is arranged on the top of the top cover body; a noise exhaust device is arranged at the bottom of the top cover body, and the noise exhaust device comprises: a liquid collecting pan, a liquid collecting pan is installed at the bottom of the top cover body through a fixing block bolt; a heat conducting layer, a heat conducting layer is laid at the lower end of the outer side surface of the liquid collecting pan; sound absorbing cotton, the left and right sides of the heat conducting layer are adhesively connected to the sound absorbing cotton; a resistance heater, a resistance heater is bolted to the bottom end of the outer side surface of the liquid collecting pan; a drain pipe, a drain pipe is installed on the port pipe at the bottom end of the outer side surface of the liquid collecting pan; an infrared thermometer, an infrared thermometer is fixed to the left end ring of the outer side surface of the drain pipe; wherein, sound absorbing cotton is adhesively installed on the inner side surface of the top cover body.

[0006] Preferably, the rain and snow protection device comprises: a dust cover, which is arranged on the top of the top cover body; and a blocking cover, which is installed on the top of the dust cover by screws.

[0007] Preferably, the rain and snow protection device also includes: a rain shield cover, the top bolts of the blocking sleeve are equipped with the rain shield cover; an auxiliary fixing column, the top auxiliary fixing column inside the rain shield cover is plug-connected with the top of the top cover body.

[0008] Preferably, the rain and snow protection device further comprises: a drying layer, and the top of the rain shield cover is fixedly connected with the drying layer; wherein the inner wall of the drying layer is slidably connected with the fan cover.

[0009] Preferably, the inner wall of the liquid collecting tray is coated with an anti-stick coating, and the thickness of the sound-absorbing cotton is two centimeters.

[0010] Preferably, guide grooves are distributed on the top of the rain shield cover.

[0011] The utility model has the following advantages: The utility model provides a heat exchanger of an air source two-stage coupled heat pump unit through improvement, which has the following improvements compared with the same type of equipment:

[0012] The utility model describes a heat exchanger of an air source two-stage coupled heat pump unit, which is provided with a rain and snow protection device on the top of the top cover body, and filters and dries the air through a dust cover and a drying layer. In this way, the blocking cover and the rain cover can prevent the rain and snow from obliquely entering due to a change in wind direction, and can effectively block the rain and snow from the outside to prevent the fan from freezing due to the entry of rain and snow. In addition, the device can filter and dry the incoming air to prevent dust accumulation from causing damage to the equipment.

[0013] The heat exchanger of an air source two-stage coupled heat pump unit described in the utility model is provided with a noise exhaust device at the bottom of the top cover body, and the heat is guided by the heat conductive layer for uniform heating, so that the condensed water generated during operation can be discharged centrally, and when the ambient temperature is low, the liquid collection tray can be evenly heated to effectively prevent the condensed water from freezing at low temperatures and causing blockage, thereby preventing the condensed water from freezing and spreading to the heat exchanger to cause a sudden decrease in the heat exchange rate of the unit, thereby improving the stability of the heat exchanger operation and reducing the loss of electric energy, and the sound-absorbing cotton can absorb the noise generated by the heat pump unit and reduce the noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the rain and snow protection device of the utility model;

[0016] Figure 3 It is a schematic diagram of the explosion structure of the rain and snow protection device of the utility model;

[0017] Figure 4 It is a schematic diagram of the main structure of the top cover of the utility model;

[0018] Figure 5 The utility model Figure 4 A in the figure is an enlarged structural diagram.

[0019] Among them: bottom frame -1, fixing block -2, top cover body -3, fan cover -4, rain and snow protection device -5, noise exhaust device -6, heat exchanger -7, dust cover -51, blocking cover -52, rain cover -53, auxiliary column -54, drying layer -55, liquid collection tray -61, heat conductive layer -62, sound absorbing cotton -63, resistance heater -64, drain pipe -65, infrared thermometer -66. DETAILED DESCRIPTION

[0020] The following is combined with Figures 1 to 5 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0021] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] Embodiment 1:

[0024] See also Figure 1 to Figure 5The utility model discloses a heat exchanger for an air source two-stage coupled heat pump unit, comprising a bottom frame 1, a fixing block 2 is welded and fixed at the bottom of the bottom frame 1, a top cover body 3 is bolted to the top of the bottom frame 1, a fan cover 4 is arranged on the top of the top cover body 3, and a heat exchanger 7 is arranged at the bottom of the top cover body 3.

[0025] A rain and snow protection device 5 is provided on the top of the top cover body 3, and a noise exhaust device 6 is provided at the bottom of the top cover body 3. The noise exhaust device 6 includes a liquid collecting pan 61 installed at the bottom of the top cover body 3 through a solid block bolt. The liquid collecting pan 61 provides a platform for installing other parts. A heat conducting layer 62 is laid on the lower end of the outer side of the liquid collecting pan 61. The left and right sides of the heat conducting layer 62 are adhesively connected to the sound absorbing cotton 63. A resistance heater 64 is bolted to the bottom end of the outer side of the liquid collecting pan 61. The resistance heater 64 heats the liquid collecting pan 61. A drainage pipe 65 is installed on the port pipe at the bottom end of the outer side of the liquid collecting pan 61.

[0026] An infrared thermometer 66 is fixed to the left end ring on the outer side of the drain pipe 65, and sound-absorbing cotton 63 is glued to the inner side of the top cover body 3. The inner wall of the liquid collecting tray 61 is coated with an anti-stick coating, which makes it convenient to reduce the situation where other substances stick to the inner wall of the liquid collecting tray 61. The thickness of the sound-absorbing cotton 63 is two centimeters, which effectively improves the noise reduction effect of the sound-absorbing cotton 63.

[0027] The working principle of the heat exchanger based on an improved air source two-stage coupled heat pump unit is:

[0028] First, there are many air-source two-stage coupled heat pump units on the market whose condensate water drainage outlets are directly opened on the chassis. The openings are numerous and not concentrated, and the drainage is not smooth, making it difficult to uniformly collect the condensate and then discharge it out of the unit. When the ambient temperature is below 0 degrees, the condensate on the chassis will condense into ice. As the heat pump unit continues to run, the ice will spread to the unit heat exchanger 7, thereby affecting the performance of the heat pump unit, and the noise generated by the operation of the heat pump unit will have a greater impact on the lives of residents outside.

[0029] Second, when condensed water is generated, it will flow directly into the liquid collecting pan 61 along the conduit, and collect in the liquid collecting pan 61, and then be discharged through the drain pipe 65;

[0030] Third, when the temperature is low, the control terminal controls the start-up of the resistance heater 64 and the infrared thermometer 66. The infrared thermometer 66 detects the temperature of the resistance heater 64 and controls the heating temperature to be at an appropriate value.

[0031] Fourth, the resistance heater 64 heats the bottom of the liquid collecting pan 61, and the heat conducting layer 62 absorbs and guides the heat, thereby uniformly heating the condensed water in the liquid collecting pan 61 to prevent freezing, thereby preventing the ice from spreading to the heat exchanger 7;

[0032] Fifth, the noise generated by the heat pump unit can be absorbed and reduced by the sound-absorbing cotton 63, so that the condensed water generated during operation can be discharged in a centralized manner. When the ambient temperature is low, the liquid collection tray 61 can be evenly heated to effectively prevent the condensed water from freezing at low temperatures and causing blockage, thereby preventing the condensed water from freezing and spreading to the heat exchanger 7, causing a sudden drop in the heat exchange capacity of the unit, thereby improving the operating stability of the heat exchanger 7 and reducing the loss of electric energy. The sound-absorbing cotton 63 can absorb and reduce the noise generated by the heat pump unit.

[0033] Embodiment 2:

[0034] See also Figure 1 to Figure 5 Compared with the first embodiment, the present invention further includes: a rain and snow protection device 5 includes a dust cover 51 disposed on the top of the top cover body 3, a blocking cover 52 is installed on the top of the dust cover 51 by screws, and the blocking cover 52 and the rain cover 53 can prevent the oblique entry of rain and snow caused by the wind direction;

[0035] A rain shield 53 is bolted to the top of the blocking sleeve 52, and an auxiliary fixing column 54 at the top of the rain shield 53 is plugged into the top of the top cover body 3. The auxiliary fixing column 54 provides a fixing effect for the installation of the rain shield 53. A drying layer 55 is fixedly connected to the top of the rain shield 53, and the inner wall of the drying layer 55 is slidably connected to the fan cover 4. Guide grooves are distributed on the top of the rain shield 53, and the flow of air can be effectively guided by the set guide grooves.

[0036] In this embodiment:

[0037] First, when the unit is in a low-temperature area with heavy rain and snow, it is difficult for the equipment to protect the fan. Once snow falls on the fan, it is easy to freeze the fan, making the equipment unable to operate normally, and a large amount of dust from the outside can easily cause damage to the equipment.

[0038] Second, in rainy and snowy weather, the blocking cover 52 and the rain cover 53 can prevent the rain and snow brought by the wind from entering obliquely, thereby fully blocking the rain and snow from the outside;

[0039] Third, the dust cover 51 and the drying layer 55 can filter and dry the air to prevent dust from entering the device and accumulating;

[0040] Fourth, to avoid affecting the heat dissipation and use of the equipment, the blocking sleeve 52 and the rain cover 53 can prevent the wind direction from changing and causing rain and snow to enter obliquely, and can effectively block the rain and snow from the outside to prevent the fan from freezing due to the entry of rain and snow. The device can also filter and dry the incoming air to avoid dust accumulation and damage to the equipment.

[0041] The utility model provides a heat exchanger of an air source two-stage coupled heat pump unit through improvement, wherein a rain and snow prevention device 5 is arranged on the top of the top cover body 3, and the air is filtered and dried by the dust cover 51 and the drying layer 55, so that the blocking cover 52 and the rain cover 53 can prevent the situation where the wind direction changes and the rain and snow enter obliquely, and can effectively block the rain and snow from the outside to prevent the rain and snow from entering and causing the fan to freeze, and the device can filter and dry the incoming air to prevent dust accumulation and damage to the equipment; a noise exhaust device 6 is arranged at the bottom of the top cover body 3, and the heat is uniformly heated by the heat conduction layer 62, so that the condensed water generated during operation can be discharged in a centralized manner, and when the ambient temperature is low, the condensed water can be effectively prevented from freezing at low temperature and causing blockage by uniformly heating the liquid collection tray 61, thereby preventing the condensed water from freezing and spreading to the heat exchanger 7 and causing a sudden decrease in the heat exchange rate of the unit, thereby improving the stability of the operation of the heat exchanger 7 and reducing the loss of electric energy, and the sound-absorbing cotton 63 can absorb energy and reduce noise for the noise generated by the heat pump unit.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model, and the standard parts used in the utility model can be purchased from the market, and special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0043] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat exchanger for an air source two-stage coupled heat pump unit, comprising a bottom frame (1), a fixing block (2) being welded and fixed at the bottom of the bottom frame (1), a top cover body (3) being bolted to the top of the bottom frame (1), a fan cover (4) being arranged at the top of the top cover body (3), and a heat exchanger (7) being arranged at the bottom of the top cover body (3); Features: It also includes a rain and snow protection device (5), the top of the top cover body (3) is provided with the rain and snow protection device (5); a noise exhaust device (6), the bottom of the top cover body (3) is provided with the noise exhaust device (6); The noise exhaust device (6) comprises: a liquid collecting tray (61), the bottom of the top cover body (3) is equipped with the liquid collecting tray (61) by means of a fixing block bolt; a heat conducting layer (62), the lower end of the outer side surface of the liquid collecting tray (61) is provided with a heat conducting layer (62); sound absorbing cotton (63), the left and right sides of the heat conducting layer (62) are both adhesively connected to the sound absorbing cotton (63); a resistance heater (64), the bottom end of the outer side surface of the liquid collecting tray (61) is equipped with a resistance heater (64) by means of a bolt; a liquid drain pipe (65), the bottom end of the outer side surface of the liquid collecting tray (61) is equipped with a liquid drain pipe (65); an infrared thermometer (66), the left end of the outer side surface of the liquid drain pipe (65) is fixed with an infrared thermometer (66); Wherein, sound-absorbing cotton (63) is glued and installed on the inner side surface of the top cover body (3).

2. The heat exchanger of the air source two-stage coupled heat pump unit according to claim 1, characterized in that: The rain and snow protection device (5) comprises: a dust cover (51), the top of the top cover body (3) is provided with the dust cover (51); and a blocking cover (52), the top of the dust cover (51) is installed with the blocking cover (52) by screws.

3. The heat exchanger of the air source two-stage coupled heat pump unit according to claim 2, characterized in that: The rain and snow protection device (5) further comprises: a rain shield (53), the top bolt of the blocking sleeve (52) being provided with the rain shield (53); and an auxiliary fixing column (54), the top auxiliary fixing column (54) inside the rain shield (53) being plug-connected with the top of the top cover body (3).

4. The heat exchanger of the air source two-stage coupled heat pump unit according to claim 3, characterized in that: The rain and snow protection device (5) further comprises: a drying layer (55), the drying layer (55) being fixedly connected to the top of the rain shield cover (53); Wherein, the inner wall of the drying layer (55) is slidably connected to the fan cover (4).

5. The heat exchanger of the air source two-stage coupled heat pump unit according to claim 4, characterized in that: The inner wall of the liquid collecting tray (61) is coated with an anti-sticking coating, and the thickness of the sound-absorbing cotton (63) is two centimeters.

6. The heat exchanger of the air source two-stage coupled heat pump unit according to claim 5, characterized in that: The top of the rain shield (53) is evenly distributed with guide grooves.

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