Fin type heat exchanger dust removal device, control method thereof and air conditioning unit
By designing a fin heat exchanger dust removal device including a dust removal component frame, a dust removal component baffle and a controller, the problem of heat exchange efficiency reduction and failure caused by sand and dust blockage is solved, and the efficient and stable operation of the fin heat exchanger is achieved and the energy efficiency improvement of the fin heat exchanger is achieved.
Patent Information
- Application Number
- CN202411628057.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-03-11
AI Technical Summary
When fin heat exchangers are used in harsh sand and dust areas, sand and dust blockage will lead to a decrease in heat exchange efficiency, attenuation of refrigeration capacity, and may cause components to be overloaded and faulted, making it difficult to achieve efficient and stable operation.
A fin heat exchanger dust removal device is designed, including a dust removal component frame, a dust removal component baffle and a controller. By detecting the air inlet wind speed in multiple areas of the fin heat exchanger, the dust blockage area is determined, and by controlling the movement of the dust removal component baffle in the frame, blocking the air inlet in the non-dust blockage area, increasing the air inlet volume in the dust blockage area, and removing sand and dust.
Effectively remove sand and dust in fin heat exchangers, improve heat exchange efficiency, reduce failure rate, ensure efficient and stable operation of air conditioners, and reduce operation and maintenance costs.
Smart Images
Figure CN119594789A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of air conditioning, and in particular to a dust removal device for a fin heat exchanger and a control method thereof, and an air conditioning unit. Background Art
[0002] As an important component of the air-conditioning system, the fin heat exchanger is a key component to maintain the balance of the air-conditioning heat exchange system.
[0003] As the sales volume of imported and exported fin heat exchanger dust removal devices gradually increases, the areas of use and conditions of use are also different, and some problems in the use process are gradually revealed, especially when used in the Middle East and Xinjiang, my country, and other areas with severe dust. Due to the high concentration of sand and dust, dust particles will block the fin heat exchanger, causing the heat exchange efficiency of the fin heat exchanger to decrease and the cooling capacity of the fin heat exchanger dust removal device to be greatly attenuated. It may also cause the components of the fin heat exchanger dust removal device to overload, and the fin heat exchanger dust removal device to fail and shut down, making it impossible for the fin heat exchanger dust removal device to operate efficiently and stably or improve the energy efficiency of the fin heat exchanger dust removal device.
[0004] The traditional method of dust and sand removal is mainly manual cleaning. The fin gap is small, manual cleaning is difficult and labor costs are high. It may also damage the heat exchanger components, resulting in high operating and maintenance costs.
[0005] With regard to the problem of sand and dust clogging during the use of fin heat exchangers in the related art, which causes a decrease in heat exchange efficiency, no effective solution has been proposed so far. Summary of the invention
[0006] The present invention provides a fin heat exchanger dust removal device and a control method thereof, and an air conditioning unit, so as to at least solve the problem in the prior art that the fin heat exchanger is clogged with sand and dust during use, resulting in reduced heat exchange efficiency.
[0007] In order to solve the above technical problems, according to one aspect of an embodiment of the present invention, a fin heat exchanger dust removal device is provided, including: a dust removal component frame, located on the air inlet side of the fin heat exchanger; a dust removal component baffle, the surface area of the dust removal component baffle is smaller than the surface area of the dust removal component frame, the dust removal component baffle is embedded in the dust removal component frame, and slides in the dust removal component frame to block part of the air inlet of the fin heat exchanger; a controller, connected to the dust removal component baffle, used to determine the dust blockage area of the fin heat exchanger, and control the dust removal component baffle to move to a non-dust blockage area in the dust removal component frame.
[0008] Furthermore, it also includes: retractable scribers, which are arranged in pairs and located on the left and right sides of the dust removal component frame to limit the position of the dust removal component baffle.
[0009] Furthermore, the dust removal component baffle is a retractable structure and is retracted above the dust removal component frame when not in use.
[0010] Furthermore, it also includes: a control motor connected to the dust removal component baffle, and the controller controls the dust removal component baffle to move within the dust removal component frame through the control motor.
[0011] Furthermore, it also includes: a wind speed sensor located on the air inlet side of the fin heat exchanger, used to detect the air inlet wind speed in multiple areas of the fin heat exchanger; the controller is connected to the wind speed sensor, used to determine the dust blockage area of the fin heat exchanger according to the air inlet wind speed in multiple areas of the fin heat exchanger.
[0012] According to another aspect of an embodiment of the present invention, a method for controlling a fin heat exchanger dust removal device is provided, which is applied to a fin heat exchanger dust removal device as described above, and the method includes: detecting the air inlet speed of multiple areas of the fin heat exchanger; determining the dust blockage area of the fin heat exchanger according to the air inlet speed of multiple areas of the fin heat exchanger; and controlling the dust removal component baffle to move to a non-dust blockage area within the dust removal component frame.
[0013] Furthermore, before detecting the air inlet speeds of multiple areas of the fin heat exchanger, it also includes: obtaining rated air inlet speeds corresponding to the multiple areas of the fin heat exchanger, wherein the rated air inlet speed is used to characterize the air inlet speed when the fin heat exchanger is not blocked by dust.
[0014] Furthermore, the dust blockage area of the fin heat exchanger is determined based on the air inlet speeds of multiple areas of the fin heat exchanger, including: comparing the size relationship between the air inlet speeds of each area of the fin heat exchanger and its corresponding rated air inlet speed; when the air inlet speed of any area of the fin heat exchanger is less than its corresponding rated air inlet speed, determining that the area is the dust blockage area of the fin heat exchanger.
[0015] Furthermore, after controlling the dust removal component baffle to move to the non-dust-blocked area within the dust removal component frame, it also includes: reacquiring the inlet wind speed of the dust-blocked area of the fin heat exchanger; when the inlet wind speed of the dust-blocked area of the fin heat exchanger is greater than its corresponding rated inlet wind speed, controlling the dust removal component baffle to be retracted.
[0016] According to another aspect of an embodiment of the present invention, there is provided an air conditioning unit, comprising the above-mentioned fin heat exchanger dust removal device.
[0017] According to another aspect of an embodiment of the present invention, there is provided a storage medium containing computer executable instructions, wherein the computer executable instructions are used to execute the above-mentioned method for controlling a dust removal device of a fin heat exchanger when executed by a computer processor.
[0018] In the present invention, a dust removal device for a fin heat exchanger of an air conditioner is provided, and the device comprises: a dust removal component frame located on the air inlet side of the fin heat exchanger, a dust removal component baffle and a controller, the surface area of the dust removal component baffle is smaller than the surface area of the dust removal component frame, the dust removal component baffle is embedded in the dust removal component frame, and slides in the dust removal component frame to block part of the air inlet of the fin heat exchanger. When the controller determines that the dust blockage area of the fin heat exchanger is blocked, the dust removal component baffle is controlled to move to a non-dust blockage area in the dust removal component frame, and the air inlet of the non-dust blockage area is blocked by the dust removal component baffle, the air inlet volume of the dust blockage area is increased, and the sand and dust inside the fins in the dust blockage area are flushed out together, thereby clearing the sand and dust in the fin heat exchanger, improving the heat exchange efficiency of the fin heat exchanger, reducing the failure rate of the air conditioner, and ensuring the efficient and stable operation of the air conditioner. At the same time, the above scheme can timely detect and remove dust in the fin heat exchanger, avoid the high difficulty and high cost of manual cleaning of the fin heat exchanger, and possible damage to the fin heat exchanger, thereby reducing the operation and maintenance costs of the air-conditioning unit. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a schematic diagram of an optional structure of a dust removal device for a fin heat exchanger according to an embodiment of the present invention;
[0020] Figure 2 is a schematic diagram of an optional structure of an air conditioning unit according to an embodiment of the present invention;
[0021] Figure 3 is another optional structural schematic diagram of a dust removal device for a fin heat exchanger according to an embodiment of the present invention;
[0022] Figure 4 is another optional structural schematic diagram of a dust removal device for a fin heat exchanger according to an embodiment of the present invention;
[0023] Figure 5 is another optional structural schematic diagram of a dust removal device for a fin heat exchanger according to an embodiment of the present invention;
[0024] Figure 6 It is an optional flow chart of a method for controlling a dust removal device of a fin heat exchanger according to an embodiment of the present invention.
[0025] Description of reference numerals:
[0026] 1. Dust removal component frame; 2. Dust removal component baffle; 3. Retractable scriber; 4. Compressor; 5. Four-way valve; 6. Evaporator; 7. Throttling device; 8. Solenoid valve; 9. Fin heat exchanger; 10. Gas-liquid separator. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0028] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.
[0029] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0030] It should be understood that although the terms first, second, third, etc. may be used to describe controllers in embodiments of the present invention, these controllers should not be limited to these terms. These terms are only used to distinguish controllers connected to different devices. For example, without departing from the scope of embodiments of the present invention, a first controller may also be referred to as a second controller, and similarly, a second controller may also be referred to as a first controller.
[0031] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.
[0032] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.
[0033] The optional embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0034] Example 1
[0035] In a preferred embodiment 1 of the present invention, a fin heat exchanger dust removal device is provided. Specifically, Figure 1 An optional structural schematic diagram of the fin heat exchanger dust removal device is shown, such as Figure 1 As shown, the fin heat exchanger dust removal device includes:
[0036] The dust removal component frame 1 is located on the air inlet side of the fin heat exchanger;
[0037] The dust removal component baffle 2 has a surface area that is smaller than the surface area of the dust removal component frame 1. The surface area refers to the projection area of the front view. Figure 1 As shown, the dust removal assembly baffle 2 is embedded in the dust removal assembly frame 1 and slides in the dust removal assembly frame 1 to block part of the air inlet of the fin heat exchanger; a slideway can be provided in the dust removal assembly frame 1, and the dust removal assembly baffle 2 moves in the slideway to achieve safe and stable movement;
[0038] The controller is connected to the dust removal component baffle 2 and is used to determine the dust blocking area of the fin heat exchanger and control the dust removal component baffle 2 to move to the non-dust blocking area within the dust removal component frame 1.
[0039] In the above embodiment, a dust removal device for a fin heat exchanger of an air-conditioning unit is provided, and the device includes: a dust removal component frame located on the air inlet side of the fin heat exchanger, a dust removal component baffle, and a controller, the surface area of the dust removal component baffle is smaller than the surface area of the dust removal component frame, the dust removal component baffle is embedded in the dust removal component frame, and slides in the dust removal component frame to block part of the air inlet of the fin heat exchanger. When the controller determines that the dust-blocked area of the fin heat exchanger is blocked, the dust removal component baffle is controlled to move to a non-dust-blocked area in the dust removal component frame, and the air inlet of the non-dust-blocked area is blocked by the dust removal component baffle, the air inlet of the dust-blocked area is increased, and the dust inside the fins of the dust-blocked area is flushed out together, thereby clearing the dust in the fin heat exchanger, improving the heat exchange efficiency of the fin heat exchanger, reducing the failure rate of the air-conditioning unit, and ensuring the efficient and stable operation of the air-conditioning unit. At the same time, the above scheme can timely detect and remove dust in the fin heat exchanger, avoid the high difficulty and high cost of manual cleaning of the fin heat exchanger, and possible damage to the fin heat exchanger, thereby reducing the operation and maintenance costs of the air-conditioning unit.
[0040] Figure 2 An optional structural diagram of an air conditioning unit is shown, such as Figure 2As shown, the air conditioning unit includes: a compressor 4, a four-way valve 5, an evaporator 6, a throttling device 7, a solenoid valve 8, a fin heat exchanger 9 (condenser) and a gas-liquid separator 10. In this device, the dust removal component frame 1 is located on the air inlet side of the fin heat exchanger and is arranged closely to the fin heat exchanger, so that the dust removal component baffle 2 can effectively block the air inlet of the fin heat exchanger, thereby improving the dust and sand cleaning effect.
[0041] like Figure 1 As shown, the device further includes: retractable scribes 3, which are arranged in pairs and located on the left and right sides of the dust removal component frame 1 to limit the position of the dust removal component baffle 2. The retractable scribes 3 are arranged symmetrically on the left and right sides, such as Figure 1 As shown, the dust removal component frame 1 has holes on both sides, and a retractable scriber 3 is set between three equal parts of the fin heat exchanger to fix the dust removal component plate. That is, the surface area of the dust removal component baffle 2 is set to one third of the surface area of the dust removal component frame 1, so that the dust removal component baffle 2 is fixed by the retractable scriber 3 to prevent it from moving under the action of wind.
[0042] at the same time, Figure 3 Another optional structural schematic diagram of the fin heat exchanger dust removal device is shown, such as Figure 3 As shown, the surface area of the dust removal component baffle 2 is set to one third of the surface area of the dust removal component frame 1, and the dust removal component baffle 2 of the fin heat exchanger dust removal device is located at the top, at which time the dust and sand in the middle and / or lower fin heat exchanger are cleaned.
[0043] Figure 4 Another optional structural schematic diagram of the fin heat exchanger dust removal device is shown, such as Figure 4 As shown, the dust removal component baffle 2 of the fin heat exchanger dust removal device is located in the middle, and the dust and sand of the uppermost and / or lower fin heat exchanger are cleaned at this time.
[0044] Figure 5 Another optional structural schematic diagram of the fin heat exchanger dust removal device is shown, such as Figure 5 As shown, the dust removal assembly baffle 2 of the fin heat exchanger dust removal device is located at the lower part, and the dust and sand of the uppermost and / or middle fin heat exchanger are cleaned at this time.
[0045] The surface area of the dust removal component baffle 2 can also be set to one-fourth or one-fifth of the surface area of the dust removal component frame 1, and can be set as needed. The smaller the surface area of the dust removal component baffle 2, the finer the control.
[0046] In addition, the dust removal assembly baffle 2 is a retractable structure, and is retracted above the dust removal assembly frame 1 when not in use. In order to prevent the dust removal assembly baffle 2 from obstructing the air intake of the fin heat exchanger when dust and sand are not needed, the dust removal assembly baffle 2 is set to a retractable structure, for example, it can be rolled up, and when it is not in use, it is rolled up and retracted above the dust removal assembly frame 1 to avoid blocking the air intake of the heat exchanger and affecting the heat exchange efficiency. At the same time, the dust removal assembly baffle 2 is kept clean to avoid long-term erosion by the external environment and increase the service life.
[0047] In order to achieve complete automatic dust and sand removal, the device further includes: a control motor connected to the dust removal assembly baffle 2, and the controller controls the dust removal assembly baffle 2 to move in the dust removal assembly frame 1 through the control motor. At the same time, it also includes: a wind speed sensor located on the air inlet side of the fin heat exchanger, which is used to detect the air inlet speed of multiple areas of the fin heat exchanger; the controller is connected to the wind speed sensor, which is used to determine the dust blockage area of the fin heat exchanger according to the air inlet speed of multiple areas of the fin heat exchanger.
[0048] Through the cooperation of the above-mentioned motor, sensor and controller, timely and automatic dust and sand removal control can be achieved, that is, the air intake situation of the heat exchanger can be detected in time, and its dust blockage area can be judged, and then the dust removal component baffle can be moved by the motor to improve the dust blockage problem of the air-conditioning fin heat exchanger, improve the heat exchange efficiency of the air-conditioning unit, reduce the failure rate of the air-conditioning unit, ensure the efficient operation of the air-conditioning unit, and improve the energy efficiency of the air-conditioning unit.
[0049] Example 2
[0050] In a preferred embodiment 2 of the present invention, a control method for a fin heat exchanger dust removal device is provided, which is applied to the fin heat exchanger dust removal device in the above embodiment 1. Specifically, Figure 6 An optional flow chart of the method is shown as follows: Figure 6 As shown, the method includes the following steps S602-S606:
[0051] S602: Detecting air inlet speeds in multiple areas of the fin heat exchanger;
[0052] S604: determining dust blocking areas of the fin heat exchanger according to air inlet speeds of multiple areas of the fin heat exchanger;
[0053] S606: Control the dust removal component baffle to move to a non-dust-blocking area within the dust removal component frame.
[0054] In the above embodiment, a dust removal device for a fin heat exchanger of an air-conditioning unit is provided, and the device includes: a dust removal component frame located on the air inlet side of the fin heat exchanger, a dust removal component baffle, and a controller, the surface area of the dust removal component baffle is smaller than the surface area of the dust removal component frame, the dust removal component baffle is embedded in the dust removal component frame, and slides in the dust removal component frame to block part of the air inlet of the fin heat exchanger. When the controller determines that the dust-blocked area of the fin heat exchanger is blocked, the dust removal component baffle is controlled to move to a non-dust-blocked area in the dust removal component frame, and the air inlet of the non-dust-blocked area is blocked by the dust removal component baffle, the air inlet of the dust-blocked area is increased, and the dust inside the fins of the dust-blocked area is flushed out together, thereby clearing the dust in the fin heat exchanger, improving the heat exchange efficiency of the fin heat exchanger, reducing the failure rate of the air-conditioning unit, and ensuring the efficient and stable operation of the air-conditioning unit. At the same time, the above scheme can timely detect and remove dust in the fin heat exchanger, avoid the high difficulty and high cost of manual cleaning of the fin heat exchanger, and possible damage to the fin heat exchanger, thereby reducing the operation and maintenance costs of the air-conditioning unit.
[0055] In a preferred embodiment of the present invention, before detecting the air inlet speed of multiple areas of the fin heat exchanger, the method further includes: obtaining the rated air inlet speed corresponding to the multiple areas of the fin heat exchanger, wherein the rated air inlet speed is used to characterize the air inlet speed when the fin heat exchanger is not blocked by dust. When the unit is installed for the first time, there is no sand or dust in the fin heat exchanger of the unit. When the unit is started for operation and debugging, Figure 3 For example, the precision anemometer is used to test and record the average wind speed at three locations of the fin heat exchanger. The upper, middle and lower wind speeds are recorded as V1, V2 and V3 respectively. The static pressure value in the fin heat exchanger is constant. V1, V2 and V3 are used as the basis for judging whether the fin heat exchanger of the unit is blocked. After the unit is turned on and runs stably for 30 minutes, the anemometer, i.e. the wind speed sensor, is turned on to detect the wind speed at the three locations of the fin heat exchanger respectively.
[0056] After determining the wind speeds at three locations of the fin heat exchanger, determine the dust blockage area of the fin heat exchanger based on the inlet wind speeds of multiple areas of the fin heat exchanger, including: comparing the size relationship between the inlet wind speeds of each area of the fin heat exchanger and its corresponding rated inlet wind speed; when the inlet wind speed of any area of the fin heat exchanger is less than its corresponding rated inlet wind speed, determine that the area is the dust blockage area of the fin heat exchanger. Since the wind speed will decrease due to the blockage of dust and sand when dust is blocked, it is possible to simply and effectively determine whether the fin heat exchanger is dust blocked by the wind speed. In specific implementation, in order to avoid misjudgment and improve accuracy, an error interval can be set. When the difference between the rated inlet wind speed of a certain area of the fin heat exchanger and its inlet wind speed is greater than the error interval, the area is determined to be a dust blockage area.
[0057] Furthermore, after controlling the dust removal component baffle to move to the non-dust-blocked area within the dust removal component frame, it also includes: reacquiring the air intake speed of the dust-blocked area of the fin heat exchanger; when the air intake speed of the dust-blocked area of the fin heat exchanger is greater than its corresponding rated air intake speed, controlling the dust removal component baffle to be retracted. In order to prevent the dust removal component baffle from obstructing the air intake of the fin heat exchanger when dust and sand removal is not required, the dust removal component baffle is configured as a retractable structure. For example, when the air intake speed is restored, indicating that the dust-blocked area has been cleaned, the dust removal component baffle can be rolled up and retracted above the dust removal component frame to avoid blocking the air intake of the heat exchanger and affecting the heat exchange efficiency. At the same time, the dust removal component baffle is kept clean to avoid long-term erosion by the external environment and increase the service life.
[0058] The following example illustrates this:
[0059] When it is detected that the average wind speeds in the three areas of the fin heat exchanger are greater than V1, V2, and V3, the unit is operating normally.
[0060] When the upper wind speed is less than V1, the controller sends a signal, the electric dust removal assembly board opens, and moves with the slide to the middle fin. Two telescopic blades fix the dust removal assembly board so that the dust removal assembly board is close to the fin surface. With the normal operation of the unit, this heat exchanger is sealed by one-third, the motor power of the fan is constant, the air volume is constant, the internal suction force increases, and the wind can only be sucked in from the upper and lower sides. At this time, the dust inside the fin can be flushed out together. After the electric dust removal assembly board starts to move, the anemometer detects the wind speed every 30 seconds. When it is detected that the wind speed of the upper fin heat exchanger is greater than V1, the signal value is returned to the controller, and the electric dust removal assembly board is retracted.
[0061] When the wind speed in the middle is less than V2, the controller sends a signal, the electric dust removal assembly board opens, and as the slide moves to the upper fin, two telescopic blades fix the dust removal assembly board so that the dust removal assembly board is close to the fin surface. With the normal operation of the unit, this heat exchanger is sealed by one-third, the motor power of the fan is constant, the air volume is constant, the internal suction force increases, and the wind can only be sucked in from the middle and lower sides. At this time, the dust inside the fin can be flushed out together. After the electric dust removal assembly board starts to move, the anemometer detects the wind speed every 30 seconds. When it is detected that the wind speed of the middle fin heat exchanger is greater than V2, the signal value is returned to the controller, and the electric dust removal assembly board is retracted.
[0062] When the wind speed at the lower part is less than V3, the controller sends a signal, and the electric dust removal assembly board opens. As the slide moves to the lower fin, two telescopic blades fix the dust removal assembly board so that the dust removal assembly board is close to the fin surface. With the normal operation of the unit, this heat exchanger is sealed by one-third, the motor power of the fan is constant, the air volume is constant, the internal suction force increases, and the wind can only be sucked in from the upper and middle sides. At this time, the dust inside the fin can be flushed out together. After the electric dust removal assembly board starts to move, the anemometer detects the wind speed every 30 seconds. When it is detected that the wind speed of the upper fin heat exchanger is greater than V3, the signal value is returned to the controller, and the electric dust removal assembly board is retracted.
[0063] After the above treatment, the blockage problem of the finned heat exchange tubes is solved, which can greatly improve the heat exchange efficiency, reduce the failure rate of the unit, and help improve the energy efficiency of the unit. At the same time, it solves the problems of traditional dust and sand removal methods and reduces the operation and maintenance costs of the air conditioning unit.
[0064] Example 3
[0065] Based on the dust removal device for the fin heat exchanger provided in the above-mentioned embodiment 1, an air conditioning unit is also provided in a preferred embodiment 3 of the present invention.
[0066] Specifically, Figure 2 An optional structural diagram of an air conditioning unit is shown, such as Figure 2 As shown, the air conditioning unit includes: a compressor 4, a four-way valve 5, an evaporator 6, a throttling device 7, a solenoid valve 8, a fin heat exchanger 9 (condenser) and a gas-liquid separator 10. In this device, the dust removal component frame is located on the air inlet side of the fin heat exchanger and is closely arranged with the fin heat exchanger, so that the dust removal component baffle can effectively play the effect of blocking the air inlet of the fin heat exchanger, thereby improving the dust and sand cleaning effect.
[0067] In the above embodiment, a dust removal device for a fin heat exchanger of an air-conditioning unit is provided, and the device includes: a dust removal component frame located on the air inlet side of the fin heat exchanger, a dust removal component baffle, and a controller, the surface area of the dust removal component baffle is smaller than the surface area of the dust removal component frame, the dust removal component baffle is embedded in the dust removal component frame, and slides in the dust removal component frame to block part of the air inlet of the fin heat exchanger. When the controller determines that the dust-blocked area of the fin heat exchanger is blocked, the dust removal component baffle is controlled to move to a non-dust-blocked area in the dust removal component frame, and the air inlet of the non-dust-blocked area is blocked by the dust removal component baffle, the air inlet of the dust-blocked area is increased, and the dust inside the fins of the dust-blocked area is flushed out together, thereby clearing the dust in the fin heat exchanger, improving the heat exchange efficiency of the fin heat exchanger, reducing the failure rate of the air-conditioning unit, and ensuring the efficient and stable operation of the air-conditioning unit. At the same time, the above scheme can timely detect and remove dust in the fin heat exchanger, avoid the high difficulty and high cost of manual cleaning of the fin heat exchanger, and possible damage to the fin heat exchanger, thereby reducing the operation and maintenance costs of the air-conditioning unit.
[0068] Example 4
[0069] Based on the fin heat exchanger dust removal device control method provided in the above-mentioned embodiment 2, a storage medium containing computer executable instructions is also provided in a preferred embodiment 4 of the present invention. When the computer executable instructions are executed by a computer processor, they are used to execute the fin heat exchanger dust removal device control method as described above.
[0070] In the above embodiment, a dust removal device for a fin heat exchanger of an air-conditioning unit is provided, and the device includes: a dust removal component frame located on the air inlet side of the fin heat exchanger, a dust removal component baffle, and a controller, the surface area of the dust removal component baffle is smaller than the surface area of the dust removal component frame, the dust removal component baffle is embedded in the dust removal component frame, and slides in the dust removal component frame to block part of the air inlet of the fin heat exchanger. When the controller determines that the dust-blocked area of the fin heat exchanger is blocked, the dust removal component baffle is controlled to move to a non-dust-blocked area in the dust removal component frame, and the air inlet of the non-dust-blocked area is blocked by the dust removal component baffle, the air inlet of the dust-blocked area is increased, and the dust inside the fins of the dust-blocked area is flushed out together, thereby clearing the dust in the fin heat exchanger, improving the heat exchange efficiency of the fin heat exchanger, reducing the failure rate of the air-conditioning unit, and ensuring the efficient and stable operation of the air-conditioning unit. At the same time, the above scheme can timely detect and remove dust in the fin heat exchanger, avoid the high difficulty and high cost of manual cleaning of the fin heat exchanger, and possible damage to the fin heat exchanger, thereby reducing the operation and maintenance costs of the air-conditioning unit.
[0071] The serial numbers of the above embodiments of the present invention are only for description and do not represent the advantages or disadvantages of the embodiments.
[0072] In the above embodiments of the present invention, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0073] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only schematic. For example, the division of the units can be a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.
[0074] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.
[0075] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.
[0076] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.
[0077] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not invented by the present invention. The specification and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.
[0078] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.
Claims
1. A dust removal device for a fin heat exchanger, characterized in that: include: A dust removal assembly frame, located on the air inlet side of the fin heat exchanger; A dust removal assembly baffle, wherein the surface area of the dust removal assembly baffle is smaller than the surface area of the dust removal assembly frame, the dust removal assembly baffle is embedded in the dust removal assembly frame and slides in the dust removal assembly frame to shield part of the air inlet of the fin heat exchanger; The controller is connected to the dust removal component baffle and is used to determine the dust blocking area of the fin heat exchanger and control the dust removal component baffle to move to a non-dust blocking area within the dust removal component frame.
2. The dust removal device for fin heat exchanger according to claim 1, characterized in that: Also includes: The retractable scribers are arranged in pairs and are located on the left and right sides of the dust removal component frame to limit the position of the dust removal component baffle.
3. The dust removal device for fin heat exchanger according to claim 1, characterized in that: The dust removal component baffle is a retractable structure and is retracted above the dust removal component frame when not in use.
4. The dust removal device for fin heat exchanger according to claim 1, characterized in that: Also includes: The control motor is connected to the dust removal component baffle, and the controller controls the dust removal component baffle to move within the dust removal component frame through the control motor.
5. The dust removal device for fin heat exchanger according to claim 1, characterized in that: Also includes: A wind speed sensor, located at the air inlet side of the fin heat exchanger, for detecting the air inlet speed of multiple areas of the fin heat exchanger; The controller is connected to the wind speed sensor and is used to determine the dust blockage area of the fin heat exchanger according to the air inlet wind speed of multiple areas of the fin heat exchanger.
6. A fin heat exchanger dust removal device control method, applied to the fin heat exchanger dust removal device according to any one of claims 1 to 5, characterized in that: The method comprises: Detect the air inlet velocity in multiple areas of the fin heat exchanger; Determining dust blocking areas of the fin heat exchanger according to air inlet speeds of multiple areas of the fin heat exchanger; The dust removal component baffle is controlled to move to a non-dust-blocking area within the dust removal component frame.
7. The method according to claim 6, characterized in that Before testing the air velocity in multiple areas of the fin heat exchanger, it also includes: The rated air inlet wind speeds corresponding to the multiple areas of the fin heat exchanger are obtained, wherein the rated air inlet wind speed is used to characterize the air inlet wind speed when the fin heat exchanger is not clogged with dust.
8. The method according to claim 7, characterized in that Determining the dust blocking area of the fin heat exchanger according to the air inlet speeds of multiple areas of the fin heat exchanger includes: Comparing the magnitude relationship between the air inlet speed of each area of the fin heat exchanger and its corresponding rated air inlet speed; When the air inlet speed of any area of the fin heat exchanger is less than its corresponding rated air inlet speed, the area is determined to be a dust blockage area of the fin heat exchanger.
9. The method according to claim 8, characterized in that After controlling the dust removal component baffle to move to the non-dust blocking area in the dust removal component frame, the method further includes: Re-obtaining the air inlet velocity of the dust-blocked area of the fin heat exchanger; When the air inlet speed in the dust-blocked area of the fin heat exchanger is greater than the corresponding rated air inlet speed, the baffle of the dust removal assembly is controlled to be retracted.
10. An air conditioning unit, characterized in that: It comprises a dust removal device for a fin heat exchanger as claimed in any one of claims 1 to 5.
11. A storage medium containing computer executable instructions, characterized in that: The computer executable instructions are used to execute the fin heat exchanger dust removal device control method according to any one of claims 6 to 9 when executed by a computer processor.