Protection assembly and heat pump unit

Abstract

The utility model relates to a protection assembly. The protection assembly comprises a drainage unit, wherein the drainage unit is provided with a first drainage unit and a second drainage unit; the first drainage unit is provided with a water pan and a first drainage pipe, and the water pan is arranged at the bottom of the heat exchanger; the input end of the first drain pipe is connected to the water pan, and the output end of the first drain pipe is connected with an external drain pipe; the second drainage unit is provided with a second drainage pipe, the input end of the second drainage pipe is connected with the waterway outlet, and the output end of the second drainage pipe is connected with an external drainage pipe. The protection assembly can timely and quickly discharge accumulated water in the water pan, avoids bacteria breeding and peculiar smell generation caused by long-time retention of the accumulated water in the unit, can discharge water in a heat exchanger waterway when the heat pump unit stops running at a low temperature, avoids waterway pipeline damage caused by freezing of the water in the waterway, and improves the service life of the heat pump unit. Therefore, the whole heat pump unit can be effectively protected in time.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pumps, in particular to a protection component and a heat pump unit. Background Art

[0002] The heat exchanger in the heat pump unit exchanges heat with air or water during normal operation, which will continuously generate condensed water. In order to prevent the condensed water from flowing to various places in the heat pump unit box and affecting the electrical circuit therein, a water receiving pan is generally set at the bottom of the heat exchanger, and the condensed water is connected to the water receiving pan and then discharged. In the past, the water receiving pan was drained through the drainage channel set by the water receiving pan itself. However, when only draining water through the water receiving pan itself, the water receiving pan will still not drain fast enough, resulting in incomplete drainage, and even a large amount of water accumulation. If the accumulated water is left in the unit for a long time, it is easy to cause bacteria to grow and odor to be generated, which seriously affects people's health, and the body will rust and affect the service life. In addition, in the cold winter, especially in the northern region, when the heat pump unit is shut down, the heat exchanger will drop with the ambient temperature, and the heat exchanger is equipped with water pipes inside. The water in the water pipes will freeze, causing the water pipes to be broken and damage the unit. Utility Model Content

[0003] Based on this, the purpose of the utility model is to provide a protective component. By setting a drainage unit, not only can the accumulated water in the water receiving tray be discharged promptly and quickly to avoid the accumulated water being retained for a long time and causing bacteria and odor in the unit, but also the water in the water pipe of the heat exchanger can be discharged when the heat pump unit stops running under low temperature conditions to avoid damage to the water pipe due to freezing of water in the water pipe, thereby providing timely and effective protection for the entire heat pump unit.

[0004] Another object of the utility model is to provide a heat pump unit, which can not only drain the accumulated water in the water receiving tray promptly and quickly by setting a drainage unit, thereby avoiding the long-term retention of accumulated water to cause bacteria and odor in the unit, but also can drain the water in the water pipe of the heat exchanger when the heat pump unit stops running under low temperature conditions, thereby avoiding the damage of the water pipe caused by the freezing of water in the water pipe, thereby providing timely and effective protection for the entire heat pump unit.

[0005] A protection component relates to a heat exchanger, wherein the heat exchanger is provided with a waterway inlet and a waterway outlet, comprising:

[0006] A drainage unit, wherein the drainage unit is provided with a first drainage unit and a second drainage unit;

[0007] The first drainage unit is provided with a water receiving pan and a first drainage pipe, the water receiving pan is arranged at the bottom of the heat exchanger; the input end of the first drainage pipe is connected to the water receiving pan, and the output end thereof is connected to an external drainage pipe;

[0008] The second drainage unit is provided with a second drainage pipe, the input end of the second drainage pipe is connected to the waterway outlet, and the output end thereof is connected to an external drainage pipe.

[0009] Furthermore, the drainage unit is also provided with a plurality of drainage pumps;

[0010] The input end of the drainage pump is connected to the first drainage pipe and / or the second drainage pipe, and the output end thereof is connected to an external drainage pipe.

[0011] Furthermore, the first drainage unit is provided with a first stop valve, and the first stop valve is arranged on the pipeline of the first drainage pipe;

[0012] The second drainage unit is provided with a second stop valve, and the second stop valve is arranged on the pipeline of the second drainage pipe;

[0013] The output ends of the first drainage pipe and the second drainage pipe are both connected to the input end of the same drainage pump.

[0014] Furthermore, a guide surface is provided at the bottom of the water receiving tray, and the guide surface is inclined along the flow direction of the water flow. A drain outlet is provided at the end of the flow path of the water flow, and the drain outlet is connected to an external drain pipe.

[0015] Furthermore, the first drainage unit is also provided with a liquid level detector, and the liquid level detector is arranged on one side of the water receiving surface of the water receiving tray.

[0016] Furthermore, the second drainage unit is also provided with a temperature sensor, and the temperature sensor is used to detect the temperature around the heat exchanger.

[0017] Further, a heating component is also included;

[0018] The heating assembly is provided with a first heating element and a second heating element;

[0019] The first heating element is disposed at the bottom of the water receiving tray and abuts against a side of the water receiving tray away from the heat exchanger;

[0020] The second heating element is fixed on the outer surface of the heat exchanger.

[0021] Furthermore, the first heating element includes a heating layer, a heat-insulating layer and a fixing layer; the heating layer abuts against the water receiving tray, the fixing layer is used to fix the heating layer and the fixing layer, and the heat-insulating layer is sandwiched between the heating layer and the fixing layer.

[0022] Furthermore, it also includes a controller;

[0023] The first stop valve and the second stop valve are solenoid valves;

[0024] The controller is electrically connected or signal-connected with the first stop valve, the second stop valve, the liquid level detector, the temperature sensor, the first heating element, and the second heating element.

[0025] At the same time, the present application also provides a heat pump unit, including the protection component described in the utility model.

[0026] The beneficial effects of the utility model are:

[0027] (1) By setting up a drainage unit, not only can the accumulated water in the water tray be drained out promptly and quickly, thus preventing the accumulated water from being left for a long time and causing bacteria and odor in the unit, but also the water in the water pipe of the heat exchanger can be drained out when the heat pump unit stops running under low temperature conditions, thus preventing the water pipe from being damaged due to freezing of the water in the water pipe, thereby providing timely and effective protection for the entire heat pump unit;

[0028] (2) By arranging drainage pumps in the first drainage unit and the second drainage unit, the drainage capacity and efficiency of the drainage unit can be improved so as to quickly and thoroughly drain the water in the water receiving pan and the water pipe of the heat exchanger;

[0029] (3) By arranging the first stop valve and the second stop valve on the first drainage pipeline and the second drainage pipeline, the output ends of the first drainage pipeline and the second drainage pipeline can be connected to the same drainage pump at the same time, and by controlling the switch of the first stop valve and the second stop valve, the drainage pump can selectively connect the water in the water pan and / or the water pipe of the heat exchanger to drain water, thereby reducing the number of drainage pumps used and reducing costs;

[0030] (4) The design of the water tray makes it easier for water to be discharged from the channel of the water tray itself, thereby minimizing water accumulation in the water tray and reducing the use of drainage pumps, thereby reducing energy consumption and user costs;

[0031] (5) A liquid level detector is installed in the water receiving tray to monitor the water accumulation in the water receiving tray at any time, so as to drain the water in time;

[0032] By setting a temperature sensor, the temperature around the heat exchanger can be detected at any time to prevent the heat pump unit from being damaged when the temperature is too low.

[0033] (6) A heating component is provided at the bottom of the water tray and on the heat exchanger. In a low temperature environment, the water tray and the heat exchanger can be preheated to ensure the normal start-up of the heat pump unit and prevent ice and frost from forming in the water tray and on the surface of the heat exchanger during operation;

[0034] (7) By setting up a controller, the controller is electrically or communicatively connected to each electrical component to more intelligently monitor the internal state and environmental conditions of the heat pump unit, and the working state of each protective component is controlled accordingly to better provide protection for the heat pump unit.

[0035] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram of the installation of the protection assembly provided in the embodiment of the present application;

[0037] Figure 2 This is a schematic diagram of the structure of the first heating element provided in an embodiment of the present application.

[0038] In the figure: 1-heat exchanger; 2-heat pump unit body; 10-drainage unit; 11-first drainage unit; 111-water receiving tray; 111a-guiding surface; 111b-drainage outlet; 112-first drainage pipe; 113-first stop valve; 114-liquid level detector; 12-second drainage unit; 121-second drainage pipe; 122-second stop valve; 123-temperature sensor; 13-drainage pump; 21-first heating element; 211-heating layer; 212-insulating layer; 213-fixed layer; 22-second heating element. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] In the description of the present invention, it should be noted that the terms "vertical direction", "upper", "lower", "horizontal" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] At present, the water pan at the bottom of the heat exchanger still has the problem of untimely and incomplete drainage through its own drainage, resulting in water accumulation in the water pan. If the accumulated water is left in the unit for a long time, it is easy to breed bacteria and produce odor; especially in the cold winter in the northern region, the surrounding environment is low and lasts for a long time, sometimes the water has frozen before it is discharged, which will undoubtedly increase the difficulty of discharging condensed water and even affect the heat exchange of the heat exchanger; at the same time, the heat exchanger is provided with a water pipe for heat exchange with the refrigerant. If the water in the water pipe is not discharged in time, once the heat pump unit is shut down in winter, the temperature of the heat exchanger will quickly drop with the ambient temperature. In the low temperature environment, the water in the pipe will freeze and break the water pipe, causing damage to the heat pump unit. In addition, if the heat pump unit is to be started, it is necessary to ensure that the temperature of the heat exchanger is not too low. When the temperature of the heat exchanger is too low, the water flowing into the water pipe will freeze quickly. Therefore, there is an urgent need for a component that can drain the water in the water tray in a timely and rapid manner, drain the water in the water pipe in a low temperature environment to provide protection for the heat pump unit, and provide a heat source for the heat exchanger to facilitate the safe startup of the heat pump unit.

[0043] Based on this, the utility model provides a protection component, which, by setting a drainage unit, can not only drain the accumulated water in the water receiving tray in a timely and rapid manner, and avoid the accumulated water being retained for a long time to cause bacteria and odor in the unit, but also can drain the water in the water pipe of the heat exchanger when the heat pump unit stops running under low temperature conditions, and avoid the water pipe being damaged due to freezing of water in the water pipe; at the same time, by setting a heating component to provide a heat source for the heat exchanger to facilitate the safe startup of the heat pump unit, it can provide protection for the entire heat pump unit in a timely and effective manner.

[0044] See also Figure 1 The utility model provides a protection component, which involves a heat exchanger 1. The heat exchanger 1 is arranged in the inner cavity of a heat pump unit housing 2. The heat exchanger 1 is provided with a water pipeline (not shown), and the water pipeline is provided with a water inlet and a water outlet. The protection component includes a drainage unit 10. The drainage unit 10 is used to discharge the condensed water generated by the heat exchanger 1 during normal operation, and to discharge the water in the water pipeline of the heat exchanger 1 when the heat pump unit is stopped in a low temperature environment to avoid damage to the water pipe.

[0045] Specifically, the drainage unit 10 is provided with a first drainage unit 11 and a second drainage unit 12. The first drainage unit 11 is provided with a water receiving pan 111 and a first drainage pipe 112. The water receiving pan 111 is provided at the bottom of the heat exchanger 1 to receive the condensed water generated by the heat exchanger 1. The input end of the first drainage pipe 112 is connected to the water receiving pan 111, and the output end thereof is connected to an external drainage pipe. Preferably, the input end of the first drainage pipe 112 is provided at the end of the flow path of the water receiving pan 111 to drain the water in the water receiving pan 111 as much as possible. The water flows through the first drainage pipe 112 and then is discharged to the outside of the heat pump unit box 2 through the external drainage pipe. The second drainage unit 12 is provided with a second drainage pipe 121. The input end of the second drainage pipe 121 is connected to the water path outlet, and the output end thereof is connected to the external drainage pipe. When the water in the water pipe of the heat exchanger 1 needs to be drained, the input end of the second drain pipe 121 is connected to the water outlet, and the water in the water pipe flows through the second drain pipe 121 and is then discharged to the outside of the heat pump unit box 2 through the external drain pipe.

[0046] Furthermore, in order to drain the water in the water receiving tray 111 and the water pipe more quickly and efficiently, the drainage unit 10 is also provided with a plurality of drainage pumps 13. The input end of the drainage pump 13 is connected to the first drainage pipe 112 and / or the second drainage pipe 121, and the output end thereof is connected to the external drainage pipe. Specifically, there are one or more drainage pumps 13. When the drainage pump 13 is set as one, the water in the water receiving tray 111 and the water pipe is discharged through one drainage pump 13. When the water receiving tray 111 needs to be drained, the first drainage pipe 112 is connected to the drainage pump 13. When the water pipe needs to be drained, the second drainage pipe 121 is connected to the drainage pump 13. When the drainage pump 13 is set as two, the water in the water receiving tray 111 and the water pipe is connected to the two drainage pumps 13 respectively, and the water receiving tray 111 and the water pipe can be drained by controlling the opening of the two drainage pumps 13 respectively.

[0047] In the case of using one drainage pump 13, in order to achieve drainage of one of the docking water pan 111 and the water pipeline, it is necessary to manually replace the connecting pipeline. In the case of using two or more drainage pumps 13, the production cost and user cost will be increased. Therefore, in a further embodiment, the first drainage unit 11 is provided with a first stop valve 113, and the first stop valve 113 is arranged on the pipeline of the first drainage pipe 112; the second drainage unit 12 is provided with a second stop valve 122, and the second stop valve 122 is arranged on the pipeline of the second drainage pipe 121. There is one drainage pump 13, and the output ends of the first drainage pipe 112 and the second drainage pipe 121 are connected to the input end of the same drainage pump 13, specifically, the output ends of the first drainage pipe 112 and the second drainage pipe 121 are connected to the pipeline of the input end of the drainage pump 13 through a three-way valve. Therefore, by controlling whether the first stop valve 113 and the second stop valve 122 are turned on or off, the drainage pump 13 can selectively dock the water pan 111 and / or the water pipeline for drainage, which is not only convenient for drainage, but also reduces costs. Preferably, the first stop valve 113 and the second stop valve 122 are one-way valves. When they are open, water can flow from the water receiving pan 111 or the water pipe to the drain pump 13, but cannot flow from the drain pump 13 to the water receiving pan 111 or the water pipe, so as to prevent water from flowing back to the water receiving pan 111 or the water pipe. The first stop valve 113 and the second stop valve 122 can be manual valves or solenoid valves, preferably solenoid valves.

[0048] The present application also includes a controller for controlling the components in the heat pump unit. The first stop valve 113 and the second stop valve 122 are electrically connected or communicated with the controller, and the controller controls the conduction of the first stop valve 113 and the second stop valve 122, which is more convenient and intelligent for users to use.

[0049] Furthermore, in order to facilitate the discharge of water from the drainage channel of the water receiving pan 111 itself, reduce the accumulation of water in the water receiving pan 111 as much as possible, reduce the use of the drainage pump 13, thereby reducing energy consumption and reducing user use costs, the water receiving pan 111 is designed. Specifically, the water receiving surface of the water receiving pan 111 is provided with a guide surface 111a, the guide surface 111a is inclined along the flow direction of the water flow, and a drain port 111b is provided at the end of the flow path of the water flow, and the drain port 111b is connected to an external drain pipe, so that the water is discharged to the outside of the heat pump unit box 2.

[0050] Furthermore, in order to timely monitor the water accumulation in the water tray 111, the first drainage unit 11 is also provided with a liquid level detector 114, which is arranged on one side of the water receiving surface of the water tray 111. The liquid level detector 114 can be arranged at different positions of the water tray 111 according to the actual set liquid level height. The liquid level detector 114 can be set to one or more, which are electrically connected or communicated with the controller. At the same time, the drainage pump 13 can also be electrically connected or communicated with the controller. When the liquid level reaches the height set by the liquid level detector 114, the liquid level detector 114 sends the detected data to the controller, and the controller controls the drainage pump 13 to perform drainage operations; when the liquid level detector 114 detects that the liquid level is lower than a certain height, the drainage pump 13 can be controlled by the controller to stop the drainage operation, so as to avoid the drainage pump 13 from being empty, thereby increasing the service life of the drainage pump 13 and saving energy.

[0051] Through the drainage of the water receiving pan 111 itself and the double drainage of the water receiving pan 111 by the first drainage unit 11 composed of the first drainage pipe 112, the first stop valve 113, the liquid level detector 114 and the drainage pump 13, the water in the water receiving pan 111 can be drained conveniently, quickly and promptly, so that the water receiving pan 111 can be kept free of water at all times, thereby avoiding rust on the water receiving pan 111 and other internal components of the heat pump unit case 2 to reduce the service life, and preventing the breeding of bacteria and the generation of odor, which is more beneficial to human health and improves user experience.

[0052] Furthermore, in order to timely monitor the temperature around the heat exchanger 1, the second drainage unit 12 is also provided with a temperature sensor 123, and the temperature sensor 123 is used to detect the temperature around the heat exchanger 1. The temperature sensor 123 is electrically connected or communicatively connected to the controller. Before the heat pump unit is operated, the temperature sensor 123 detects the ambient temperature around the heat exchanger 1. When the temperature sensor 123 detects that the ambient temperature is lower than a certain temperature, such as 0°, the controller will control the opening of the drainage pump 13 and the second stop valve 122 to drain the water in the water pipe. When the temperature sensor 123 detects that the ambient temperature is higher than a certain temperature, such as 5°, there will be no ice in the water pipe, and the heat pump unit can be opened normally, thereby providing protection for the heat pump unit.

[0053] It is understandable that the temperature sensor 123 may be installed on the outer surface of the heat exchanger 1 , or may be installed at other locations in the heat pump unit close to the heat exchanger 1 , which is not limited here.

[0054] Furthermore, in cold winter, especially in northern regions, the ambient temperature is low and lasts for a long time, and people need the heat pump unit to provide heating or warm water. However, before the heat pump unit is operated, if the temperature of the heat exchanger 1 is too low for a long time, it will cause failure to start, and even after starting, the heat exchanger 1 will be damaged due to rapid freezing. In addition, when the heat pump unit is running, the water in the water receiving pan 111 will quickly freeze and frost due to the low temperature, which is not conducive to the discharge of water and affects the normal operation of the unit. Therefore, in order to provide protection for the start-up and operation of the heat exchanger 1, in this embodiment, the protection component also includes a heating component to preheat the heat exchanger 1 before starting, and to increase the temperature of the water receiving pan 111 to avoid freezing and frost.

[0055] Please also see Figure 1 and Figure 2 , the heating assembly is provided with a first heating element 21 and a second heating element 22. The first heating element 21 is arranged at the bottom of the water receiving pan 111 and abuts against the side of the water receiving pan 111 away from the heat exchanger 1. The first heating element 21 includes a heating layer 211, a thermal insulation layer 212 and a fixing layer 213, and the heating layer 211, the thermal insulation layer 212 and the fixing layer 213 form an integral structure. The heating layer 211 abuts against the side of the water receiving pan 111 away from the heat exchanger 1, and is used to provide heat for the water receiving pan 111 to increase the temperature of the water receiving pan 111. The fixing layer 213 abuts against the bottom of the heat pump unit housing 2, and is used to fix the heating layer 211 and the thermal insulation layer 212 to the bottom of the heat pump unit housing 2. The thermal insulation layer 212 is sandwiched between the heating layer 211 and the fixing layer 213 to provide insulation for the water receiving pan 111 to prevent rapid heat loss.

[0056] The second heating element 22 is provided as one or more, and one or more second heating elements 22 are fixedly arranged on the outer surface of the heat exchanger 1. The second heating element 22 is preferably a heater, and the hot air flow emitted by the heater is diffused to the surrounding and inside of the heat exchanger 1, thereby increasing the temperature of the heat exchanger 1, so as to facilitate the normal startup of the heat exchanger 1.

[0057] In order to facilitate the control of the first heating element 21 and the second heating element 22, the first heating element 21 and the second heating element 22 are both electrically connected or communicatively connected to the controller. Before the heat pump unit is started, when the temperature sensor 123 detects that the ambient temperature is lower than the set temperature, the controller controls the first heating element 21 and the second heating element 22 to work, and provide heat to the water receiving tray 111 and the heat exchanger 1. The temperature of the water receiving tray 111 and the heat exchanger 1 gradually increases. When the temperature sensor 123 detects that the temperature is higher than the set temperature, the controller controls the first heating element 21 and the second heating element 22 to stop working. At this time, the heat pump unit can be started normally, and the controller controls the operation of other electrical components. After the heat pump unit is running normally, in order to prevent the condensed water on the outer surface of the heat exchanger 1 from freezing rapidly due to the low ambient temperature, or the condensed water from freezing after falling into the water receiving tray 111, the first heating element 21 and the second heating element 22 can also be turned on to provide heat to the water receiving tray 111 and the heat exchanger 1. Therefore, the controller can flexibly and intelligently control whether the first heating element 21 and the second heating element 22 are turned on or off, and the energy consumption can be controlled to the maximum extent, thereby improving the overall performance of the heat pump unit.

[0058] At the same time, the present application also provides a heat pump unit, including the protection component described in the utility model.

[0059] Compared with the prior art, the beneficial effects of the technical solution of this application are:

[0060] (1) By setting up a drainage unit, not only can the accumulated water in the water tray be drained out promptly and quickly, thus preventing the accumulated water from being left for a long time and causing bacteria and odor in the unit, but also the water in the water pipe of the heat exchanger can be drained out when the heat pump unit stops running under low temperature conditions, thus preventing the water pipe from being damaged due to freezing of the water in the water pipe, thereby providing timely and effective protection for the entire heat pump unit;

[0061] (2) By arranging drainage pumps in the first drainage unit and the second drainage unit, the drainage capacity and efficiency of the drainage unit can be improved so as to quickly and thoroughly drain the water in the water receiving pan and the water pipe of the heat exchanger;

[0062] (3) By arranging the first stop valve and the second stop valve on the first drainage pipeline and the second drainage pipeline, the output ends of the first drainage pipeline and the second drainage pipeline can be connected to the same drainage pump at the same time, and by controlling the switch of the first stop valve and the second stop valve, the drainage pump can selectively connect the water in the water pan and / or the water pipe of the heat exchanger to drain water, thereby reducing the number of drainage pumps used and reducing costs;

[0063] (4) The design of the water tray makes it easier for water to be discharged from the channel of the water tray itself, thereby minimizing water accumulation in the water tray and reducing the use of drainage pumps, thereby reducing energy consumption and user costs;

[0064] (5) A liquid level detector is installed in the water receiving tray to monitor the water accumulation in the water receiving tray at any time, so as to drain the water in time;

[0065] By setting a temperature sensor, the temperature around the heat exchanger can be detected at any time to prevent the heat pump unit from being damaged when the temperature is too low.

[0066] (6) A heating component is provided at the bottom of the water tray and on the heat exchanger. In a low temperature environment, the water tray and the heat exchanger can be preheated to ensure the normal start-up of the heat pump unit and prevent ice and frost from forming in the water tray and on the surface of the heat exchanger during operation;

[0067] (7) By setting up a controller, the controller is electrically or communicatively connected to each electrical component to more intelligently monitor the internal state and environmental conditions of the heat pump unit, and the working state of each protective component is controlled accordingly to better provide protection for the heat pump unit.

[0068] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. A protection component, relating to a heat exchanger, wherein the heat exchanger is provided with a waterway inlet and a waterway outlet, characterized in that: include: A drainage unit, wherein the drainage unit is provided with a first drainage unit and a second drainage unit; The first drainage unit is provided with a water receiving pan and a first drainage pipe, the water receiving pan is arranged at the bottom of the heat exchanger; the input end of the first drainage pipe is connected to the water receiving pan, and the output end thereof is connected to an external drainage pipe; The second drainage unit is provided with a second drainage pipe, the input end of the second drainage pipe is connected to the waterway outlet, and the output end thereof is connected to an external drainage pipe.

2. The protection assembly according to claim 1, characterized in that: The drainage unit is also provided with a plurality of drainage pumps; The input end of the drainage pump is connected to the first drainage pipe and / or the second drainage pipe, and the output end thereof is connected to an external drainage pipe.

3. The protection assembly according to claim 2, characterized in that: The first drainage unit is provided with a first stop valve, and the first stop valve is arranged on the pipeline of the first drainage pipe; The second drainage unit is provided with a second stop valve, and the second stop valve is arranged on the pipeline of the second drainage pipe; The output ends of the first drainage pipe and the second drainage pipe are both connected to the input end of the same drainage pump.

4. The protection assembly according to claim 3, characterized in that: A guide surface is provided at the bottom of the water receiving tray, and the guide surface is inclined along the flow direction of the water flow. A drain outlet is provided at the end of the flow path of the water flow, and the drain outlet is connected to an external drain pipe.

5. The protection assembly according to claim 4, characterized in that: The first drainage unit is also provided with a liquid level detector, and the liquid level detector is arranged on one side of the water receiving surface of the water receiving tray.

6. The protection assembly according to claim 5, characterized in that: The second drainage unit is further provided with a temperature sensor, and the temperature sensor is used to detect the temperature around the heat exchanger.

7. The protection assembly according to claim 6, characterized in that: Also includes: Heating components; The heating assembly is provided with a first heating element and a second heating element; The first heating element is disposed at the bottom of the water receiving tray and abuts against a side of the water receiving tray away from the heat exchanger; The second heating element is fixed on the outer surface of the heat exchanger.

8. The protection assembly according to claim 7, characterized in that: The first heating element includes a heating layer, a heat-insulating layer and a fixing layer; the heating layer is in contact with the water receiving tray, the fixing layer is used to fix the heating layer and the fixing layer, and the heat-insulating layer is sandwiched between the heating layer and the fixing layer.

9. The protection assembly according to claim 8, characterized in that: Also includes: Controller; The first stop valve and the second stop valve are solenoid valves; The controller is electrically connected or signal-connected with the first stop valve, the second stop valve, the liquid level detector, the temperature sensor, the first heating element, and the second heating element.

10. A heat pump unit, characterized in that: The protective component comprises any one of claims 1-9.

Images