Liquid channel drying device and method

Abstract

The embodiment of the invention provides a liquid channel drying device and method.The device is used for drying a tubular liquid channel and comprises an air source part, a first pipeline, a first humidity sensor, a second pipeline, a second humidity sensor and a controller; the air source part is used for introducing pressurized and heated air into the first pipeline; the second end of the first pipeline is communicated with a liquid inlet of the liquid passing channel; the first humidity sensor is used for detecting and sending the first humidity of gas, close to the second end of the first pipeline, in the first pipeline to the controller; the first end of the second pipeline is communicated with the liquid outlet of the liquid passing channel; the second humidity sensor is used for detecting and sending second humidity of gas, close to the first end of the second pipeline, in the second pipeline to the controller; and the controller is used for controlling the air source part to stop working after determining that the difference value between the first humidity and the second humidity is smaller than a humidity difference threshold value. According to the scheme, the efficiency of removing residual liquid in the liquid passing channel is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of residual liquid removal, and in particular to a liquid channel drying device and method. Background Art

[0002] Electronic control products such as vehicle-mounted equipment are provided with a fluid passage to provide a circulation path for the coolant. Before the electronic control products leave the factory, the residual liquid in the fluid passage must be removed.

[0003] At present, when removing residual liquid in the liquid channel of an electronically controlled product, compressed gas is generally introduced into the liquid inlet of the liquid channel so that the compressed gas enters the liquid channel through the liquid inlet and flows out from the liquid outlet of the liquid channel. At the same time, a servo three-axis motor is used to control the angle of the electronically controlled product so that most of the residual liquid in the liquid channel can flow out through the liquid outlet of the liquid channel, thereby ensuring that the residual liquid in the liquid channel is removed as cleanly as possible.

[0004] However, the above method for removing the residual liquid in the liquid passage is basically to rely on the compressed air flowing in the liquid passage and the angle change of the electronic control product to drive the residual liquid in the liquid passage to flow out of the liquid passage, which is rather troublesome, resulting in low efficiency in removing the residual liquid in the liquid passage. Summary of the invention

[0005] In view of this, an embodiment of the present application provides a liquid channel drying device and method to at least partially solve the above-mentioned problems.

[0006] According to a first aspect of an embodiment of the present application, a liquid passage drying device is provided, which is used to dry the tubular liquid passage, and includes: an air source component, a first pipe, a first humidity sensor, a second pipe, a second humidity sensor and a controller; the air source component is connected to the first end of the first pipe, and is used to pass pressurized and heated air into the first pipe; the second end of the first pipe is connected to the liquid inlet of the liquid passage; the first humidity sensor is connected to the first pipe near the second end of the first pipe, and is electrically connected to the controller, and is used to detect and send to the controller a first humidity of the gas inside the first pipe near the second end of the first pipe; the first end of the second pipe is connected to the liquid outlet of the liquid passage; the second humidity sensor is connected to the second pipe near the first end of the second pipe, and is electrically connected to the controller, and is used to detect and send to the controller a second humidity of the gas inside the second pipe near the first end of the second pipe; the controller is used to receive the first humidity and the second humidity, and after determining that the difference between the first humidity and the second humidity is less than the humidity difference threshold, control the air source component to stop working.

[0007] According to a second aspect of an embodiment of the present application, a liquid channel drying method is provided, comprising: receiving a first humidity detected by a first humidity sensor and a second humidity detected by a second humidity sensor, wherein the first humidity sensor and the second humidity sensor are applied to a liquid channel drying device, the liquid channel drying device also comprising an air source component, a first pipe and a second pipe, the air source component being connected to a first end of the first pipe, the air source component being used to pass pressurized and heated air into the first pipe, the second end of the first pipe being connected to a liquid inlet of the liquid channel, the first humidity sensor being connected to a second end of the first pipe close to the first pipe, the first humidity sensor being used to detect a first humidity of gas inside the first pipe close to the second end of the first pipe, the first end of the second pipe being connected to a liquid outlet of the liquid channel, the second humidity sensor being connected to a first end of the second pipe close to the second pipe, and being used to detect a second humidity of gas inside the second pipe close to the first end of the second pipe; if the difference between the first humidity and the second humidity is less than a humidity difference threshold, the air source component is controlled to stop working.

[0008] According to the liquid channel drying device provided in the embodiment of the present application, by adopting an air source component, a first pipeline, a first humidity sensor, a second pipeline, a second humidity sensor and a controller, a hotter gas can be made to flow unidirectionally in the liquid channel. Compared with the angle change of the air circulating in the liquid channel and the electronic control product, the residual liquid in the liquid channel is driven to flow to the outside of the liquid channel. In the present application, not only can the residual liquid in the liquid channel be driven to flow to the outside of the liquid channel by the air circulating in the liquid channel, but the liquid channel can also be dried by a hotter gas. On the basis of ensuring the removal effect of the residual liquid in the liquid channel as much as possible, the removal process is simpler, and the controller can also control the air source component to stop working when the difference between the first humidity and the second humidity is less than the humidity difference threshold value, that is, the controller can control the air source component to stop working in time when the residual liquid in the liquid channel is less, thereby improving the efficiency of removing the residual liquid in the liquid channel. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0010] Figure 1 is a schematic diagram of a liquid channel drying device according to an embodiment of the present application;

[0011] Figure 2 It is a flow chart of a liquid channel drying method according to an embodiment of the present application.

[0012] Description of reference numerals:

[0013] 1. Electronic control product; 11. Liquid passage; 111. Liquid inlet; 112. Liquid outlet; 2. Vortex tube; 21. Air inlet port; 22. Hot air outlet port; 23. Cold air outlet port; 24. Air pressure regulating component; 25. Filter valve; 3. First pipeline; 4. First humidity sensor; 5. Second pipeline; 6. Second humidity sensor; 7. Target device; 8. Temperature sensor; 9. First air pressure sensor; 10. Second air pressure sensor; 12. Waste liquid collection box. DETAILED DESCRIPTION

[0014] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0015] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0016] Liquid channel drying device

[0017] An embodiment of the present application provides a liquid passage drying device, and the liquid passage drying device is described in detail below through multiple embodiments.

[0018] Figure 1 Schematic diagram of a liquid channel drying device according to an embodiment of the present application. Figure 1 As shown, the liquid channel drying device is used to dry the tubular liquid channel 11 in the electronic control product 1, and the liquid channel drying device includes: an air source component, a first pipeline 3, a first humidity sensor 4, a second pipeline 5, a second humidity sensor 6 and a controller.

[0019] The air source component is connected to the first end of the first pipeline 3 and is used to pass the pressurized and heated air into the first pipeline 3; the second end of the first pipeline 3 is communicated with the liquid inlet 111 of the liquid passage 11; the first humidity sensor 4 is connected to the first pipeline 3 at the second end close to the first pipeline 3 and is electrically connected to the controller, and is used to detect and send to the controller the first humidity of the gas inside the first pipeline 3 close to the second end of the first pipeline 3; the first end of the second pipeline 5 is communicated with the liquid outlet 112 of the liquid passage 11; the second humidity sensor 6 is connected to the second pipeline 5 at the first end close to the second pipeline 5 and is electrically connected to the controller, and is used to detect and send to the controller the second humidity of the gas inside the second pipeline 5 close to the first end of the second pipeline 5; the controller is used to receive the first humidity and the second humidity, and after determining that the difference between the first humidity and the second humidity is less than the humidity difference threshold value (indicating that the residual liquid in the liquid passage 11 is less at this time), control the air source component to stop working, that is, control the air source component to stop passing the pressurized and heated air into the first pipeline 3.

[0020] The humidity difference threshold may be a fixed value or 3%-7% of the first humidity. For example, the humidity difference threshold is 5% of the first humidity. The embodiment of the present application does not limit the specific value of the temperature difference threshold.

[0021] In the embodiment of the present application, by adopting an air source component, a first pipeline 3, a first humidity sensor 4, a second pipeline 5, a second humidity sensor 6 and a controller, a hotter gas can be made to flow unidirectionally in the liquid channel 11, and compared with the angle change of the air circulating in the liquid channel 11 and the electronic control product 1, the residual liquid in the liquid channel 11 is driven to flow to the outside of the liquid channel 11. In the present application, not only can the residual liquid in the liquid channel 11 be driven to flow to the outside of the liquid channel 11 by the air circulating in the liquid channel 11, but the liquid channel 11 can also be dried by a hotter gas, so that the removal process is simpler on the basis of ensuring the removal effect of the residual liquid in the liquid channel 11 as much as possible, and the controller can also be used to control the air source component to stop working when the difference between the first humidity and the second humidity is less than the humidity difference threshold, that is, the controller can be used to control the air source component to stop working in time when the residual liquid in the liquid channel 11 is less, thereby improving the efficiency of removing the residual liquid in the liquid channel 11.

[0022] Furthermore, compared with the background art of removing residual liquid in the liquid passage 11, the residual liquid removal time in the present application can be reduced by more than half, and there is no need to use a servo three-axis motor in the liquid passage drying device, which saves a lot of costs.

[0023] In a possible implementation, the air source component is configured as a vortex tube 2 , and a port of the vortex tube 2 for discharging heated air is connected to the first end of the first pipe 3 .

[0024] In a specific embodiment, the vortex tube 2 generally includes an air inlet port 21, a hot air outlet port 22 and a cold air outlet port 23. The hot air outlet port 22 of the vortex tube 2 is connected to the first end of the first pipe 3. Optionally, the cold air outlet port 23 of the vortex tube 2 can be connected to other target devices 7 that need to be cooled to achieve resource utilization.

[0025] An air pressure regulating component 24 and a filter valve 25 are provided in the vortex tube 2 near the air inlet port 21 of the vortex tube 2. The filter valve 25 is closer to the air inlet port 21 of the vortex tube 2 than the air pressure regulating component 24. The filter valve 25 is used to filter impurities such as water vapor or dust in the air. The vortex tube 2 heats the air by pressurizing the air filtered by the filter valve 25. The air pressure regulating component 24 is used to adjust the pressure at which the vortex tube 2 pressurizes the air filtered by the filter valve 25. Generally, when the air pressure regulating component 24 is used to increase the pressure at which the vortex tube 2 pressurizes the air filtered by the filter valve 25, the air pressure of the air flowing out of the hot air outlet port 22 of the vortex tube 2 will increase and the temperature will also increase.

[0026] Therefore, by using the vortex tube 2 as the air source component, the air entering the liquid passage 11 can be directly pressurized and heated, and thus the structure of the air source component is relatively simple and the cost is relatively low.

[0027] In a possible implementation, the liquid channel drying device also includes a temperature sensor 8; the temperature sensor 8 is connected to the first pipe 3 near the second end of the first pipe 3, and is electrically connected to the controller, and is used to detect and send to the controller the temperature of the gas inside the first pipe 3 near the second end of the first pipe 3; the controller is also used to receive the temperature detected by the temperature sensor 8, and adjust the gas source component according to the received temperature so that the temperature detected by the temperature sensor 8 changes to within the target temperature range.

[0028] Among them, the target temperature range can be set according to actual needs. For example, the middle value of the target temperature range can be around 80°C. Specifically, the target temperature range can be 79.5°C to 80.5°C, etc., which is not limited to this embodiment of the present application.

[0029] In a specific embodiment, after receiving the temperature detected by the temperature sensor 8, the controller can determine whether the temperature is within the target temperature range. If so, the current working state of the vortex tube 2 is maintained. Otherwise, if the temperature is higher than the highest temperature in the target temperature range, the air pressure regulating component 24 is used to reduce the pressure at which the vortex tube 2 pressurizes the air filtered by the filter valve 25, so that the temperature of the air flowing out of the hot air outlet port 22 of the vortex tube 2 is reduced until the temperature detected by the temperature sensor 8 changes to within the target temperature range. If the temperature is lower than the lowest temperature in the target temperature range, the air pressure regulating component 24 is used to increase the pressure at which the vortex tube 2 pressurizes the air filtered by the filter valve 25, so that the temperature of the air flowing out of the hot air outlet port 22 of the vortex tube 2 is increased, until the temperature detected by the temperature sensor 8 changes to within the target temperature range.

[0030] Therefore, the temperature sensor 8 and the controller can achieve a relatively stable temperature of the gas entering the liquid passage 11, so as to ensure the removal effect of the residual liquid as much as possible, and also reduce the possibility of the liquid passage 11 being damaged.

[0031] In a possible implementation, the liquid channel drying device also includes a first air pressure sensor 9; the first air pressure sensor 9 is connected to the first pipe 3 near the second end of the first pipe 3, and is electrically connected to the controller for detecting and sending to the controller the first air pressure of the gas inside the first pipe 3 near the second end of the first pipe 3; the controller is also used to receive the first air pressure and adjust the air source component according to the first air pressure so that the first air pressure detected by the first air pressure sensor 9 changes to within the target air pressure range.

[0032] In a specific embodiment, after receiving the first air pressure detected by the first air pressure sensor 9, the controller can determine whether the first air pressure is within the target air pressure range. If so, the current working state of the vortex tube 2 is maintained. Otherwise, if the first air pressure is higher than the maximum air pressure of the target air pressure range, the air pressure regulating component 24 is used to reduce the pressure at which the vortex tube 2 pressurizes the air filtered by the filter valve 25, so that the air pressure of the air flowing out of the hot air outlet port 22 of the vortex tube 2 is reduced until the first air pressure detected by the first air pressure sensor 9 changes to within the target temperature range. If the first air pressure is lower than the minimum air pressure of the target air pressure range, the air pressure regulating component 24 is used to increase the pressure at which the vortex tube 2 pressurizes the air filtered by the filter valve 25, so that the air pressure of the air flowing out of the hot air outlet port 22 of the vortex tube 2 is increased, until the first air pressure detected by the first air pressure sensor 9 changes to within the target air pressure range.

[0033] Among them, the target air pressure range can be set according to actual needs. For example, the middle value of the target air pressure range can be 0.4 to 0.6 MPa, etc., which is not limited in the embodiment of the present application.

[0034] It should be noted that by selecting a suitable type and model of the vortex tube 2 and the first pipe 3, after the vortex tube 2 pressurizes the air filtered by the filter valve 25 to a certain degree, the first air pressure detected by the first air pressure sensor 9 is within the target air pressure range and the temperature detected by the temperature sensor 8 is within the target temperature range.

[0035] Therefore, the first air pressure sensor 9 and the controller can achieve a relatively stable air pressure of the gas entering the liquid passage 11, so as to ensure the removal effect of the residual liquid as much as possible, and also reduce the possibility of the liquid passage 11 being damaged.

[0036] In one possible implementation, the liquid channel drying device also includes a second air pressure sensor 10; the second air pressure sensor 10 is connected to the second pipe 5 near the first end of the second pipe 5, and is electrically connected to the controller, and is used to detect and send to the controller a second air pressure of the gas inside the second pipe 5 near the first end of the second pipe 5; the controller is also used to receive the second air pressure, and to determine that the liquid channel drying device is operating abnormally after the second air pressure is less than the air pressure threshold (this indicates that almost no gas flows out of the liquid channel 11 into the second pipe 5).

[0037] Among them, the specific value of the air pressure threshold can be set according to actual needs. The air pressure threshold is much smaller than the minimum value of the target air pressure range. For example, the air pressure threshold can be 0 to 0.005 MPa, etc., and this embodiment of the present application is not limited to this.

[0038] In a specific embodiment, after the controller receives the second air pressure detected by the second air pressure sensor 10, if the second air pressure is less than the air pressure threshold, it can be determined that the liquid channel drying device is operating abnormally. At this time, the operation of the liquid channel drying device is stopped and manual maintenance is performed.

[0039] Therefore, when the second air pressure detected by the second air pressure sensor 10 is relatively small, it can be determined that the liquid passage drying device is operating abnormally, so as to monitor the operating state of the liquid passage drying device.

[0040] In a possible implementation, the second end of the second pipeline 5 is connected to a waste liquid collection box 12 to achieve resource recovery.

[0041] It should be noted that the waste liquid collection box 12 is provided with a channel for providing gas entering the waste liquid collection box 12 with a flow to the outside of the waste liquid collection box 12 , for example, an opening or a gap is provided through the box wall of the waste liquid collection box 12 .

[0042] Liquid channel drying method

[0043] An embodiment of the present application provides a liquid passage drying method, which is applied to the controller in the above-mentioned liquid passage drying device embodiment. The liquid passage drying method is described in detail below through multiple embodiments.

[0044] Figure 2 1 is a flow chart of a method for drying a liquid channel according to an embodiment of the present application. Figure 2 As shown, the liquid channel drying method includes the following steps:

[0045] Step 201 : receiving a first humidity detected by the first humidity sensor 4 and a second humidity detected by the second humidity sensor 6 .

[0046] Among them, the first humidity sensor 4 and the second humidity sensor 6 are applied to the liquid channel drying device, which also includes an air source component, a first pipeline 3 and a second pipeline 5. The air source component is connected to the first end of the first pipeline 3, and the air source component is used to pass pressurized and heated air into the first pipeline 3. The second end of the first pipeline 3 is communicated with the liquid inlet 111 of the liquid channel 11. The first humidity sensor 4 is connected to the first pipeline 3 at the second end close to the first pipeline 3. The first humidity sensor 4 is used to detect the first humidity of the gas inside the first pipeline 3 close to the second end of the first pipeline 3. The first end of the second pipeline 5 is communicated with the liquid outlet 112 of the liquid channel 11. The second humidity sensor 6 is connected to the second pipeline 5 at the first end close to the second pipeline 5, and is used to detect the second humidity of the gas inside the second pipeline 5 close to the first end of the second pipeline 5.

[0047] Step 202: If the difference between the first humidity and the second humidity is less than the humidity difference threshold, the air source component is controlled to stop working.

[0048] In a possible implementation, the liquid channel drying method also includes: receiving the temperature detected by a temperature sensor 8, wherein the temperature sensor 8 is connected to the first pipe 3 near the second end of the first pipe 3, and the temperature sensor 8 is used to detect the temperature of the gas inside the first pipe 3 near the second end of the first pipe 3; adjusting the gas source component according to the temperature detected by the temperature sensor 8 so that the temperature detected by the temperature sensor 8 changes to within the target temperature range.

[0049] In one possible implementation, the liquid channel drying method also includes: receiving a first air pressure detected by a first air pressure sensor 9, wherein the first air pressure sensor 9 is connected to the first pipe 3 near the second end of the first pipe 3, and the first air pressure sensor 9 is used to detect the first air pressure of the gas inside the first pipe 3 near the second end of the first pipe 3; adjusting the air source component according to the first air pressure so that the first air pressure detected by the first air pressure sensor 9 changes to within the target air pressure range.

[0050] In one possible implementation, the liquid channel drying method also includes: receiving a second air pressure detected by a second air pressure sensor 10, wherein the second air pressure sensor 10 is connected to the second pipe 5 near the first end of the second pipe 5, and the second air pressure sensor 10 is used to detect the second air pressure of the gas inside the second pipe 5 near the first end of the second pipe 5; if the second air pressure is less than the air pressure threshold, it is determined that the liquid channel drying device is operating abnormally.

[0051] It should be noted that the liquid channel drying method provided in the embodiment of the present application is implemented based on the liquid channel drying device provided in the aforementioned embodiments, and has the beneficial effects of the corresponding device embodiments, which will not be repeated here, and the specific implementation steps of the liquid channel drying method can be found in the description in the aforementioned liquid channel drying device embodiment, which will not be repeated here.

[0052] It should be noted that, in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article 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 process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the existence of other identical factors in the process, method, article or device including the elements.

[0053] Finally, it should be noted that the above are only preferred embodiments of the present invention, which are only used to illustrate the technical solution of the present invention, and are not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A liquid channel drying device, characterized in that: Used for drying the tubular liquid passage, comprising: an air source component, a first pipeline, a first humidity sensor, a second pipeline, a second humidity sensor and a controller; The air source component is connected to the first end of the first pipe and is used to pass the pressurized and heated air into the first pipe; The second end of the first pipe is in communication with the liquid inlet of the liquid passage; The first humidity sensor is connected to the first pipeline near the second end of the first pipeline and is electrically connected to the controller, and is used to detect and send to the controller a first humidity of the gas inside the first pipeline near the second end of the first pipeline; The first end of the second pipe is in communication with the liquid outlet of the liquid passage; The second humidity sensor is connected to the second pipeline near the first end of the second pipeline and is electrically connected to the controller, and is used to detect and send to the controller a second humidity of the gas inside the second pipeline near the first end of the second pipeline; The controller is used for receiving the first humidity and the second humidity, and controlling the air source component to stop working after determining that the difference between the first humidity and the second humidity is less than a humidity difference threshold.

2. The device according to claim 1, characterized in that The device also includes a temperature sensor; The temperature sensor is connected to the first pipeline at a position close to the second end of the first pipeline, and is electrically connected to the controller, and is used to detect and send to the controller the temperature of the gas inside the first pipeline at a position close to the second end of the first pipeline; The controller is further used to receive the temperature detected by the temperature sensor, and adjust the gas source component according to the received temperature so that the temperature detected by the temperature sensor changes to within a target temperature range.

3. The device according to claim 1, characterized in that The device also includes a first air pressure sensor; The first air pressure sensor is connected to the first pipeline near the second end of the first pipeline, and is electrically connected to the controller for detecting and sending to the controller a first air pressure of the gas inside the first pipeline near the second end of the first pipeline; The controller is further configured to receive the first air pressure and adjust the air source component according to the first air pressure so that the first air pressure detected by the first air pressure sensor changes to within a target air pressure range.

4. The device according to claim 1, characterized in that The device also includes a second air pressure sensor; The second air pressure sensor is connected to the second pipeline at a position close to the first end of the second pipeline, and is electrically connected to the controller, and is used to detect and send to the controller a second air pressure of the gas inside the second pipeline close to the first end of the second pipeline; The controller is further used to receive the second air pressure, and to determine that the liquid passage drying device is operating abnormally after the second air pressure is less than an air pressure threshold.

5. The device according to any one of claims 1 to 4, characterized in that The air source component is configured as a vortex tube; The port of the vortex tube for discharging heated air is connected to the first end of the first pipe.

6. The device according to claim 1, characterized in that The second end of the second pipeline is connected to a waste liquid collection box.

7. A method for drying a liquid channel, characterized in that: include: Receive a first humidity detected by a first humidity sensor and a second humidity detected by a second humidity sensor, wherein the first humidity sensor and the second humidity sensor are applied to a liquid passage drying device, the liquid passage drying device further comprising an air source component, a first pipe and a second pipe, the air source component is connected to a first end of the first pipe, the air source component is used to pass pressurized and heated air into the first pipe, the second end of the first pipe is communicated with a liquid inlet of the liquid passage, the first humidity sensor is connected to the first pipe at a second end close to the first pipe, the first humidity sensor is used to detect a first humidity of gas inside the first pipe close to the second end of the first pipe, the first end of the second pipe is communicated with a liquid outlet of the liquid passage, the second humidity sensor is connected to the second pipe at a first end close to the second pipe, and is used to detect a second humidity of gas inside the second pipe close to the first end of the second pipe; If the difference between the first humidity and the second humidity is less than a humidity difference threshold, the air source component is controlled to stop working.

8. The method according to claim 7, characterized in that The method further comprises: Receiving a temperature detected by a temperature sensor, wherein the temperature sensor is connected to the first pipeline near the second end of the first pipeline, and the temperature sensor is used to detect the temperature of the gas inside the first pipeline near the second end of the first pipeline; The gas source component is adjusted according to the temperature detected by the temperature sensor so that the temperature detected by the temperature sensor changes to within a target temperature range.

9. The method according to claim 7, characterized in that: The method further comprises: Receiving a first air pressure detected by a first air pressure sensor, wherein the first air pressure sensor is connected to the first pipeline near the second end of the first pipeline, and the first air pressure sensor is used to detect a first air pressure of gas inside the first pipeline near the second end of the first pipeline; The air source component is adjusted according to the first air pressure, so that the first air pressure detected by the first air pressure sensor changes to within a target air pressure range.

10. The method according to claim 7, characterized in that The method further comprises: Receiving a second air pressure detected by a second air pressure sensor, wherein the second air pressure sensor is connected to the second pipe near the first end of the second pipe, and the second air pressure sensor is used to detect the second air pressure of the gas inside the second pipe near the first end of the second pipe; If the second air pressure is less than the air pressure threshold, it is determined that the liquid passage drying device operates abnormally.

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