An ice-melting heat pump unit for a fairing under freezing rain mode

Abstract

The utility model discloses a kind of automatic ice-melting heat pump units of fairing under freezing rain mode, it is related to air source heat pump technical field. Including controller and several heat pump machine bodies, several heat pump machine bodies are connected to form heat pump unit, the top of the heat pump machine body is provided with fairing, the top of fairing is connected with air inlet fan. The utility model is provided with monitoring component and electric heat tracing band, by real-time monitoring the environmental condition of the concave position outside fairing, the start-stop of electric heat tracing band is intelligently controlled, effectively prevent icing or freezing rain accumulation, improve equipment operating efficiency and safety, with the advantages of efficient heating, energy saving and environmental protection, prolong equipment life and improve heat pump efficiency, applicable to air source heat pump equipment under cold and humid environment.

Description

Technical Field

[0001] This utility model relates to the field of air source heat pump technology, specifically to an automatic ice-melting heat pump unit with a deflector under freezing rain mode. Background Technology

[0002] An air source heat pump is an energy-saving device that uses high-grade energy to transfer heat from a low-grade heat source (air) to a high-grade heat source. It is a type of heat pump. When operating in cold or humid environments, ice or freezing rain can easily accumulate on the concave area outside the air guide shield, leading to the following problems:

[0003] 1. Ice thickening: The accumulation of ice or freezing rain may cause the ice layer to thicken at the concave position on the outside of the fairing, affecting airflow efficiency.

[0004] 2. Equipment damage: Thickened ice layer may cause deformation or damage to the fairing structure, increasing maintenance costs.

[0005] 3. Reduced heat pump efficiency: The accumulation of ice or freezing rain increases airflow resistance, reducing the heating efficiency of air source heat pumps.

[0006] In existing technologies, this problem is usually solved by heating or mechanical de-icing, but these methods have drawbacks such as high energy consumption, low efficiency, or complex maintenance. Therefore, there is an urgent need for a highly efficient and energy-saving anti-freezing rain mode control system and method. Utility Model Content

[0007] The purpose of this utility model is to provide an automatic ice-melting heat pump unit with a deflector under freezing rain mode to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: an automatic de-icing heat pump unit with a deflector under freezing rain mode, comprising a controller and several heat pump units, the several heat pump units being interconnected to form a heat pump unit, a deflector being provided on the top of the heat pump unit, and an intake fan being connected to the top of the deflector.

[0009] The fairing includes a top extension plate and a bottom extension plate, with a concave plate formed between the top and bottom extension plates. An electric heating tape is fixed on the concave plate, and a monitoring component is provided on the outer side of the top extension plate.

[0010] Preferably, the monitoring component includes a mounting plate, on which a temperature sensor and a humidity sensor are connected;

[0011] The mounting plate facing the top extension plate has a slot formed on its side, which is adapted to fit the top extension plate.

[0012] Preferably, the temperature sensor is located outside the humidity sensor, and the distance between the humidity sensor and the top extension plate is less than the distance between the temperature sensor and the top extension plate.

[0013] Preferably, the monitoring component is connected to the top extension plate via a positioning component.

[0014] Preferably, the positioning component includes a positioning block fixed to one side of the mounting plate and a stand fixed to the top of the top extension plate. Insertion holes are provided on both sides of the positioning block and on the stand, and an insertion shaft is movably inserted into the insertion holes.

[0015] Both sides of the upright frame are provided with side plates, which are fixed to the insert shaft. The top of the upright frame is provided with an irregular groove, in which two guide blocks are movably inserted. The guide blocks are fixed to the side plates, and a spring is fixed between the two guide blocks.

[0016] Preferably, the concave plate is coated with a heat-reflective coating or has a heat-reflective film fixed on its surface.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] In this freezing rain mode, the automatic de-icing heat pump unit with a deflector is equipped with monitoring components and an electric heating tape. By monitoring the environmental conditions at the concave position on the outside of the deflector in real time, it intelligently controls the start and stop of the electric heating tape, effectively preventing icing or freezing rain accumulation, improving equipment operating efficiency and safety. It has the advantages of high-efficiency heating, energy saving and environmental protection, extended equipment life and improved heat pump efficiency, and is suitable for air source heat pump equipment in cold and humid environments.

[0019] Meanwhile, a positioning component is provided to prevent ice or freezing rain from accumulating on the concave area outside the air deflector. When the staff installs the monitoring component, they pull the two guide blocks outward to insert the slot of the mounting plate into the top extension plate. After releasing the two guide blocks, the insertion shaft is inserted into the insertion hole of the positioning block under the return force of the spring, which realizes the rapid installation of the monitoring component and further improves the practicality of the device. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a connection diagram between the air guide cover and the intake fan of this utility model;

[0022] Figure 3 This is an axial view of the positioning component of this utility model;

[0023] Figure 4 This is a half-sectional view of the positioning component of this utility model.

[0024] In the diagram: 1. Heat pump unit body; 2. Radiator shield; 201. Top extension plate; 202. Bottom extension plate; 3. Inlet fan; 4. Monitoring components; 401. Mounting plate; 402. Slot; 403. Temperature sensor; 404. Humidity sensor; 5. Electric heating tape; 6. Positioning components; 601. Positioning block; 602. Stand; 603. Side plate; 604. Insert shaft; 605. Guide block; 606. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figures 1-4 As shown, this utility model provides a technical solution: an automatic de-icing heat pump unit with a deflector under freezing rain mode, including a controller and several heat pump units 1. The multiple heat pump units 1 are connected in series through a pipeline system to form a complete heat pump unit system. A deflector 2 is set on the top of the heat pump unit 1, and an intake fan 3 is connected to the top of the deflector 2. After the controller controls the intake fan 3 to start, outside air enters into the heat pump unit 1. These deflectors 2 are optimized with aerodynamic principles. The intake fan 3 is connected to the circuit of the control system through a cable. When the controller issues a start command, the intake fan 3 immediately starts to operate, generating a strong suction force to continuously draw fresh outside air into the internal space of the heat pump unit 1, thereby providing the necessary airflow circulation for the normal operation of the entire heat pump system. The above is a mature prior art and will not be described in detail in this solution.

[0027] like Figure 2 As shown, the flow guide 2 includes a top extension plate 201 and a bottom extension plate 202. A concave plate is formed between the top extension plate 201 and the bottom extension plate 202. An electric heating tape 5 is fixed on the concave plate. The electric heating tape 5 is connected to an external circuit through two wires. It can be seen that the electric heating tape 5 is installed around the concave plate on the outside of the flow guide 2 to ensure uniform heating. In addition, a monitoring component 4 is provided on the outside of the top extension plate 201. The monitoring component 4 is electrically connected to the controller.

[0028] like Figure 3As shown, the monitoring component 4 includes a mounting plate 401. A temperature sensor 403 and a humidity sensor 404 are connected to the plate body of the mounting plate 401. In this solution, to prevent the heat of the electric tracing tape 5 from having a greater impact on the temperature sensor 403, the temperature sensor 403 is located outside the humidity sensor 404, and the distance between the humidity sensor 404 and the top extension plate 201 is less than the distance between the temperature sensor 403 and the top extension plate 201. To facilitate the installation of the monitoring component 4, a slot 402 is formed on the side of the mounting plate 401 facing the top extension plate 201, and the slot 402 is adapted to the top extension plate 201. In addition, the monitoring component 4 and the top extension plate 201 are connected by a positioning component 6.

[0029] As Figure 3 and Figure 4 shown, the positioning component 6 includes a positioning block 601 fixed on one side of the mounting plate 401 and a stand 602 fixed on the top end of the top extension plate 201. Through holes with the same specifications are provided on both sides of the positioning block 601 and on the stand 602. A plug shaft 604 is movably inserted into the through holes. Side plates 603 are provided on both sides of the stand 602, and the side plates 603 are fixed to the plug shaft 604. A special-shaped groove is formed at the top of the stand 602, and two guide blocks 605 are movably inserted into the special-shaped groove. In this solution, the special-shaped groove can be a middle character groove. Correspondingly, the guide blocks 605 are middle character blocks. In addition, the guide blocks 605 are fixed to the side plates 603. A spring 606 is fixed between the two guide blocks 605. In this way, by pulling the two guide blocks 605 outwards, the plug shaft 604 moves outwards.

[0030] To reduce heat loss, a heat reflection coating is applied to the plate body of the concave plate or a heat reflection film is fixed.

[0031] In this solution, the controller is electrically connected to the temperature sensor 403, the humidity sensor 404 and the electric tracing tape 5. Temperature and humidity thresholds are set in the controller. When the sensors detect that the outside temperature is lower than 0°C and the humidity is higher than 80%, the controller starts the electric tracing tape 5. When the sensors detect that the temperature rises to 5°C or the humidity drops to 60%, the control unit turns off the electric tracing tape 5.

[0032] For the supplement of this solution, in winter, it is necessary to prevent ice formation or freezing rain accumulation in the concave position outside the diversion cover 2. The staff installs the monitoring component 4, pulls the two guide blocks 605 outwards, inserts the slot 402 of the mounting plate 401 into the top extension plate 201, releases the two guide blocks 605, and under the restoring force of the spring 606, the plug shaft 604 is inserted into the through hole of the positioning block 601 to complete the installation of the monitoring component 4;

[0033] The electric tracing tape anti-freezing rain control method includes the following steps:

[0034] Monitoring phase: The temperature and humidity at the concave position on the outside of the air guide 2 are monitored in real time using temperature sensor 403 and humidity sensor 404.

[0035] Judgment stage: When the temperature is below the set threshold (0℃) and the humidity is above the set threshold (80%), it is judged that icing or freezing rain may accumulate.

[0036] Execution phase: Start the electric heating tape 5 to locally heat the concave position on the outside of the flow guide 2.

[0037] Feedback phase: Continuously monitor environmental conditions. When the temperature or humidity returns to normal (when the temperature rises back to 5°C or the humidity drops to 60%), turn off the electric heating tape module.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. A heat pump unit with automatic de-icing under freezing rain mode, comprising a controller and several heat pump units (1), wherein the several heat pump units (1) are interconnected to form a heat pump unit, characterized in that: The heat pump body (1) is provided with a flow guide shroud (2) on top, and an intake fan (3) is connected to the top of the flow guide shroud (2). The fairing (2) includes a top extension plate (201) and a bottom extension plate (202), a concave plate is formed between the top extension plate (201) and the bottom extension plate (202), an electric heating tape (5) is fixed on the plate body of the concave plate, and a monitoring component (4) is provided on the outside of the top extension plate (201).

2. The automatic de-icing heat pump unit with a deflector under freezing rain mode according to claim 1, characterized in that: The monitoring component (4) includes a mounting plate (401), on which a temperature sensor (403) and a humidity sensor (404) are connected. The mounting plate (401) facing the top extension plate (201) has a slot (402) formed on its side, which is adapted to the top extension plate (201).

3. The automatic de-icing heat pump unit with a deflector under freezing rain mode according to claim 2, characterized in that: The temperature sensor (403) is located outside the humidity sensor (404), and the distance between the humidity sensor (404) and the top extension plate (201) is less than the distance between the temperature sensor (403) and the top extension plate (201).

4. The automatic de-icing heat pump unit with a deflector under freezing rain mode according to claim 2, characterized in that: The monitoring component (4) is connected to the top extension plate (201) via a positioning component (6).

5. The automatic de-icing heat pump unit with a deflector under freezing rain mode according to claim 4, characterized in that: The positioning component (6) includes a positioning block (601) fixed on one side of the mounting plate (401) and a stand (602) fixed on the top of the top extension plate (201). Insertion holes are provided on both sides of the positioning block (601) and on the stand (602), and a plug shaft (604) is movably inserted into the insertion hole. The upright frame (602) is provided with side plates (603) on both sides. The side plates (603) are fixed to the insert shaft (604). The top of the upright frame (602) is provided with a shaped groove. Two guide blocks (605) are movably inserted into the shaped groove. The guide blocks (605) are fixed to the side plates (603). A spring (606) is fixed between the two guide blocks (605).

6. The automatic de-icing heat pump unit with a deflector under freezing rain mode according to claim 1, characterized in that: The concave plate is coated with heat-reflective paint or has a heat-reflective film fixed on its body.

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