One-way evaporation moisture-proof device

Abstract

The invention provides a one-way evaporation moisture-proof device which is arranged in a sewage inspection well and comprises a semiconductor chilling plate, a heat conduction pipe, a condensate water heat conduction cavity, a one-way evaporation pipe and an anti-backflow pipe. A heating plate and a condensation body are arranged in the condensed water heat conduction cavity; the cold end of the semiconductor chilling plate is connected with the condensation body, so that the condensation body condenses attached water vapor into liquid; the hot end of the semiconductor chilling plate is connected with one end of the heat conduction pipe, and heat is transferred to the heating plate connected with the other end of the heat conduction pipe through the heat conduction pipe, so that the heating plate evaporates liquid; and the heating plate is further connected with one end of the anti-reflux pipe, so that gas in the anti-reflux pipe enters the one-way evaporation pipe connected with the other end of the anti-reflux pipe after being heated. Water vapor in the monitoring device can be effectively evaporated, the monitoring device is prevented from being affected with damp and short circuit, and then healthy operation of an urban drainage pipe network is effectively maintained.

Description

Technical Field

[0001] The present application belongs to the technical field of urban water monitoring, and in particular relates to a one-way evaporation moisture-proof device. Background Art

[0002] The urban drainage network is an important facility for transporting sewage and discharging rainwater. It maintains urban environmental sanitation and public health, can effectively prevent urban waterlogging, protect urban water environment and water quality, improve the overall urban environmental quality and promote sustainable urban development. Therefore, the normal operation of the urban drainage network plays a vital role in the healthy development of the city. In the process of urban drainage network development, due to its deep underground burial and complex on-site working conditions, various network defects are prone to occur, such as network damage, mixed and wrong connection of rainwater and sewage networks, etc., which seriously affect the normal and healthy operation of the drainage network and increase the risks of urban waterlogging and combined system overflow pollution.

[0003] For this reason, operation and maintenance managers often use liquid level, flow, and water quality monitoring devices to detect the operation of the drainage network. However, since the urban drainage network is a severely humid environment, when various types of monitoring devices are placed in the inspection wells inside the drainage network for a long time for detection, moisture can easily invade the inside of the monitoring device, or the original water vapor inside the device condenses, causing the monitoring device to short-circuit, ultimately affecting the status monitoring of the drainage network, and even causing the monitoring device to be scrapped, resulting in direct economic losses to the operation and maintenance unit. Therefore, how to effectively prevent moisture from getting inside the monitoring device has become a technical problem that needs to be solved urgently in this field. Summary of the invention

[0004] The present application provides a one-way evaporation moisture-proof device, which is used to solve the technical problem of how to effectively prevent moisture from entering a monitoring device.

[0005] In the first aspect, the present application provides a one-way evaporation moisture-proof device, which is arranged in a sewage inspection well, and includes a semiconductor refrigeration plate, a heat pipe, a condensation water heat conduction cavity, a one-way evaporation tube and an anti-backflow tube; a heating plate and a condenser are arranged in the condensation water heat conduction cavity; the cold end of the semiconductor refrigeration plate is connected to the condenser, so that the condenser condenses the attached water vapor into liquid; the hot end of the semiconductor refrigeration plate is connected to one end of the heat pipe, and the heat is transferred to the heating plate connected to the other end of the heat pipe through the heat pipe, so that the heating plate evaporates liquid; and the heating plate is also connected to one end of the anti-backflow tube, so that the gas in the anti-backflow tube is heated and then enters the one-way evaporation tube connected to the other end of the anti-backflow tube.

[0006] In an implementation of the first aspect, a water collecting chamber is further provided in the condensation heat conduction chamber, and the water collecting chamber is provided below the condensation body; after the water vapor attached to the condensation body condenses into liquid, it flows downward along the condensation body into the water collecting chamber.

[0007] In an implementation of the first aspect, the water collecting chamber is disposed on the heating plate and connected to the one-way evaporation tube, and the heating plate heats the water collecting chamber so that the liquid in the water collecting chamber evaporates and enters the one-way evaporation tube.

[0008] In an implementation of the first aspect, the condensation body includes six condensation strips; the six condensation strips are surrounded to form a cylinder and there are gaps between each two of the condensation strips.

[0009] In an implementation of the first aspect, an insulating device is further provided in the condensation water heat conduction cavity; an opening is provided in the middle of the insulating device, and the condensate passes through the opening and is in close contact with the opening.

[0010] In an implementation of the first aspect, a first circular hole is provided on the isolation device, one end of the one-way evaporation tube is connected to the water collecting cavity, and the other end passes through the first circular hole and extends to the outside of the condensation heat conduction cavity.

[0011] In an implementation of the first aspect, a second circular hole is provided on the isolation device, one end of the anti-backflow tube is sealed and connected to the heating plate, and the other end passes through the second circular hole and extends to the outside of the condensation water heat conduction cavity and is coaxially connected to the outlet vertical section of the one-way evaporation tube outside the condensation water heat conduction cavity.

[0012] In an implementation of the first aspect, the one-way evaporation tube is provided with a reduced diameter section in the outlet vertical section outside the condensation heat conduction cavity, and the reduced diameter section prevents external water vapor from entering the tube section of the one-way evaporation tube located in the condensation heat conduction cavity.

[0013] In an implementation of the first aspect, a fixing hole is provided at the bottom of the one-way evaporation moisture-proof device, and the one-way evaporation moisture-proof device is fixed in a moisture-proof box through the fixing hole, and the moisture-proof box is arranged in the sewage inspection well.

[0014] In an implementation of the first aspect, an air outlet is provided on the top of the moisture-proof box, a waterproof breathable membrane is provided on the air outlet, and the one-way evaporation moisture-proof device is connected to the air outlet to evaporate the water vapor inside the moisture-proof box and discharge it through the air outlet.

[0015] The one-way evaporation moisture-proof device described in the present application has the following beneficial effects: the present application can effectively evaporate the water vapor inside the moisture-proof box and export it to the outside, thereby preventing the monitoring device arranged inside the moisture-proof box from short-circuiting due to moisture, thereby affecting the temperature measurement effect of the water body of the urban drainage network, thereby effectively maintaining the healthy operation of the urban drainage network. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a structural schematic diagram of a one-way evaporation moisture-proof device described in an embodiment of the present application.

[0017] Figure 2 Shown is a structural schematic diagram of a one-way evaporation moisture-proof device described in an embodiment of the present application.

[0018] Figure 3 Shown is a structural schematic diagram of a one-way evaporation moisture-proof device described in an embodiment of the present application.

[0019] Figure 4 Shown is a structural schematic diagram of a one-way evaporation moisture-proof device described in an embodiment of the present application.

[0020] Figure 5 Shown is a schematic diagram of assembling a one-way evaporation moisture-proof device and a moisture-proof box according to an embodiment of the present application.

[0021] Figure 6 Shown is a structural schematic diagram of a moisture-proof box described in an embodiment of the present application.

[0022] Component number description

[0023] A1 Moisture-proof Box

[0024] A11 Fixed column

[0025] A12 Air outlet

[0026] A One-way evaporation moisture-proof device

[0027] 1 Semiconductor Refrigeration Chip

[0028] 11 Cold End

[0029] 12 Hot End

[0030] 2 Heat pipe

[0031] 3 Condensate heat transfer cavity

[0032] 31 Heating Plate

[0033] 32 Condensate

[0034] 33 water collection chamber

[0035] 4 One-way evaporation tube

[0036] 41 Reduced diameter section

[0037] 42 Nozzle

[0038] 5 Anti-reflux tube

[0039] 6 Isolation device

[0040] 61 First round hole

[0041] 62 Second round hole

[0042] 7 Fixing holes DETAILED DESCRIPTION

[0043] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0044] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application, and thus the drawings only show components related to the present application rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0045] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0046] At present, the operation and maintenance managers of urban drainage networks often use monitoring devices to detect changes in the operating status of the drainage network to analyze the defects of the drainage network. However, since the urban drainage network is a severely humid environment, when the monitoring device is placed inside the drainage network for a long time for detection, moisture can easily invade the inside of the monitoring device, or the temperature difference causes internal water vapor condensation, which in turn causes the monitoring device to short-circuit due to moisture. Therefore, how to effectively avoid water vapor condensation inside the monitoring device has become a technical problem that needs to be solved urgently.

[0047] In order to at least solve the above-mentioned problem, a one-way evaporation moisture-proof device is provided in an embodiment of the present application, which can effectively prevent the inside of the monitoring device arranged in the moisture-proof box from getting damp.

[0048] See also Figures 1 to 4 As shown, a one-way evaporation moisture-proof device A provided by an embodiment of the present application includes a semiconductor cooling plate 1, a heat conducting pipe 2, a condensation water heat conducting cavity 3, a one-way evaporation pipe 4 and an anti-backflow pipe 5.

[0049] Wherein, a heating plate 31 and a condenser 32 are provided in the condensation water heat conduction cavity 3 .

[0050] Specifically, the cold end 11 of the semiconductor refrigeration plate 1 is connected to the condenser 32, so that the condenser 32 condenses the attached water vapor into liquid; the hot end 12 of the semiconductor refrigeration plate 1 is connected to one end of the heat pipe 2, and the heat is transferred to the heating plate 31 connected to the other end of the heat pipe 2 through the heat pipe 2, so that the heating plate 31 evaporates the liquid; and the heating plate 31 is also connected to one end of the anti-backflow pipe 5, so that the gas in the anti-backflow pipe 5 is heated and enters the one-way evaporation pipe 4 connected to the other end of the anti-backflow pipe 5.

[0051] Specifically, the semiconductor cooling sheet 1, also known as a thermoelectric cooling sheet or a Peltier cooler, is a device that uses the thermoelectric effect for cooling. Its working principle is based on the Peltier effect, which is a thermoelectric effect that absorbs or releases heat when an electric current flows through the connection between two different materials. It is usually composed of a plurality of n-type and p-type semiconductor material pairs, which are arranged in a multilayer structure and connected together by a conductive material. The upper and lower ends are coated with a ceramic substrate to improve mechanical strength and thermal conductivity.

[0052] Specifically, when a direct current passes through the semiconductor refrigeration sheet 1, electrons and holes move in the n-type and p-type semiconductors, causing the heat at the cold end to be absorbed and the heat at the hot end to be released. Under the continuous action of the current, the cold end continues to absorb the surrounding heat and transfer it to the hot end, thereby achieving the cold end becoming colder and the hot end becoming hotter. Therefore, connecting the cold end 11 of the semiconductor refrigeration sheet 1 to the condenser 32 can reduce the temperature of the condenser 32 through the cold end, thereby condensing the water vapor attached to the condenser 32 into liquid. In addition, the hot end 12 of the semiconductor refrigeration sheet 1 is connected to the heat pipe 32, and the heat pipe 32 is connected to the heating plate 31, so that the heat at the hot end can be transferred to the heating plate 31 through the heat pipe 32 to achieve liquid evaporation.

[0053] For further information, please refer to Figures 1 to 4 The one-way evaporation tube is a Z-shaped structure with two 90° elbows.

[0054] For further information, please refer to Figures 1 to 4 A water collecting chamber 33 is also provided in the condensation heat conducting cavity 3, and the water collecting chamber 33 is provided below the condensation body 32; after the water vapor attached to the condensation body 32 condenses into liquid, it flows downward along the condensation body 32 into the water collecting chamber 33.

[0055] Please continue reading Figures 1 to 4 When there is water vapor outside, the water vapor will adhere to the condenser 32. Since the top of the condenser 32 is connected to the cold end 11 of the semiconductor refrigeration sheet 1, the temperature of the condenser 32 is relatively low, so the attached water vapor will quickly liquefy and flow downward, and finally flow into the water collection chamber 33 located below the condenser 32.

[0056] Furthermore, the condensation body 32 includes six condensation strips; the six condensation strips are surrounded to form a cylinder and there are gaps between the condensation strips. Since there are gaps between the condensation strips, the liquid formed after the water vapor is liquefied will flow downward along the gaps. In order to ensure the flow of the liquid, hydrophobic materials will be further installed on both sides and the inner side of each condensation strip, so that the liquefied liquid can flow quickly.

[0057] In addition, thermal insulation materials are installed on both sides and the inner side of each condensation strip to further improve the low temperature maintenance effect, further improve the liquefaction effect, and reduce energy waste.

[0058] Please continue reading Figures 1 to 4 The water collecting chamber 33 is disposed on the heating plate 31 and connected to the one-way evaporation tube 4 . The heating plate 31 heats the water collecting chamber 33 , so that the liquid in the water collecting chamber 33 evaporates and enters the one-way evaporation tube 4 .

[0059] Specifically, when the water vapor attached to the condensate body 32 is liquefied into liquid, it will flow downward into the water collecting chamber 33. At this time, since a heating plate 31 is provided under the water collecting chamber 33, the heating plate 31 will heat the water collecting chamber 33. When the temperature rises, the liquid in the water collecting chamber 33 will evaporate into gas and enter the one-way evaporation tube 4, thereby realizing the liquefaction and gasification of the water vapor in the device, and preventing the interior from being damp due to water vapor.

[0060] For further information, please refer to Figures 1 to 4 An insulating device 6 is also provided in the condensate heat conduction cavity; an opening is provided in the middle of the insulating device 6, and the condensate passes through the opening and is in close contact with the opening.

[0061] Specifically, the isolation device 6 is formed by four trapezoidal plates, and an opening is provided in the middle of the bottom for the condensate body 32 to pass through, so that the water vapor at the top of the condensate body 32 can flow downward into the water collecting chamber 33 after condensation.

[0062] In addition, the outer side of the condensation body 32 is in close contact with the opening. As mentioned above, hydrophobic materials will be installed on both sides and the inner side of each condensation strip, and there will be gaps between the condensation strips. Therefore, the liquid after the water vapor condenses will flow down along the two sides and the inner side of the condensation strip into the water collection chamber 33. At this time, the opening at the bottom of the isolation device 6 can achieve a close fit with the outer side of the condensation body 32, and will not prevent the liquid from flowing downward, so that the volume of the device can be further reduced.

[0063] Furthermore, since the opening is in close contact with the condenser 32, when the heating plate 31 heats the water collecting chamber 33, the formed high-temperature gas is isolated by the isolation device 6, and since the opening is in close contact with the condenser 32, the reverse evaporation of the liquid can be avoided, that is, the evaporated liquid cannot flow upward along the opening, but can only enter the one-way evaporation tube 4.

[0064] For further information, please refer to Figures 1 to 4 The isolation device 6 is provided with a first circular hole 61 , one end of the one-way evaporation tube 4 is connected to the water collecting chamber 33 , and the other end passes through the first circular hole 61 and extends to the outside of the condensation heat conduction cavity 3 .

[0065] When the heating plate 31 heats the water collecting chamber 33, the high temperature causes the liquid in the water collecting chamber 33 to evaporate into gas. At this time, the condensation effect of the isolation device 6 and the condenser 32 prevents the gas from evaporating in the opposite direction and can only enter the one-way evaporation tube 4 connected to the water collecting chamber 33. Since the other end of the one-way evaporation tube 4 extends to the outside of the condensation heat conduction chamber 3 through the circular hole 61, when the gas after the liquid in the water collecting chamber 33 evaporates enters the one-way evaporation tube 4, the continuous hot gas will drive the gas in the one-way evaporation tube 4 to flow upward, and finally be discharged to the outside of the condensation heat conduction chamber 3 along the pipeline.

[0066] Furthermore, a second circular hole 62 is provided on the isolation device 6 , one end of the anti-backflow tube 5 is sealed and connected to the heating plate 31 , and the other end passes through the second circular hole 62 to extend outside the condensation heat conduction cavity 3 and is connected to the one-way evaporation tube 4 .

[0067] Specifically, the heating plate 31 is connected to the anti-backflow pipe 5, so the high temperature will heat the air in the anti-backflow pipe 5. At this time, since the air in the anti-backflow pipe 5 becomes hot, the continuous hot air will drive the gas in the anti-backflow pipe 5 to flow upward, and finally enter the one-way evaporation pipe 4 connected to the other end along the pipe. That is, the hot air in the anti-backflow pipe 5 will serve as another driving force to drive the gas in the one-way evaporation pipe 4 to be discharged outside the condensation water heat conduction cavity 3.

[0068] Furthermore, the diameter of the anti-backflow tube 5 is smaller than that of the one-way evaporation tube 4. In some embodiments, the diameter of the anti-backflow tube 5 is less than 0.5 mm, so that water droplets intruding from the outside cannot enter the anti-backflow tube 5 due to capillary phenomenon.

[0069] For further information, please refer to Figures 1 to 4 , the anti-backflow pipe 5 is coaxially connected with the one-way evaporation pipe 4 at the outlet vertical section outside the condensation water heat conduction wall 3. The anti-backflow pipe 5 increases the steam temperature at the outlet of the one-way evaporation pipe 4 through the thermal convection effect of the heating plate 31, thereby improving the evaporation efficiency. And after the external water droplets enter the one-way evaporation pipe 4, when the water droplets reach the anti-backflow pipe 5, due to the high temperature at the interface between the anti-backflow pipe 5 and the one-way evaporation pipe 4, the water will vaporize and generate barrier bubbles, and at this time, the capillary effect can prevent the external water from entering further.

[0070] For further information, please refer to Figures 1 to 4 The one-way evaporation tube 4 is provided with a reduced diameter section 41 in the vertical section of the outlet outside the condensation heat conduction cavity 3 , and the reduced diameter section 41 prevents external water vapor from entering the tube section of the one-way evaporation tube 4 located in the condensation heat conduction cavity 3 .

[0071] Furthermore, the pipe opening 42 of the one-way evaporation pipe 4 outside the condensation heat conduction cavity 3 is reduced to a small hole for gas discharge.

[0072] In some embodiments, a waterproof and breathable membrane is provided on the small hole, or the radius of the small hole is a capillary radius to prevent external liquid from entering.

[0073] On the one hand, the nozzle of the one-way evaporation tube 4 is reduced to a small hole with a capillary radius, so that when the liquid in the water collecting cavity 33 evaporates into gas, it can be discharged along the pipeline to the outside of the condensation heat conduction cavity 3 and discharged outward through the nozzle 42. And because the radius of the nozzle 42 is the capillary radius, it prevents a large amount of water vapor from the outside from entering the one-way evaporation tube 4 through the nozzle 42, thereby realizing the one-way function. On the other hand, since a reduced diameter section 41 is provided in the tube body of the one-way evaporation tube 4, even if a small amount of water vapor enters the tube body of the one-way evaporation tube 4 through the nozzle 42, it will adhere to the tube wall closest to the nozzle 42, and it is difficult to enter the tube section located in the condensation heat conduction cavity 3 through the reduced diameter section 41, thereby ensuring the dryness and high temperature state of the one-way evaporation tube 4 and realizing the continuous discharge of internal gas.

[0074] In some embodiments, the one-way evaporation moisture-proof device A further includes a power supply module, and the power supply module is used to supply power to the entire one-way evaporation moisture-proof device A so that the one-way evaporation moisture-proof device can operate normally.

[0075] In some embodiments, the one-way evaporation moisture-proof device A is disposed in the moisture-proof box A1, and the moisture-proof box A1 is disposed in the sewage inspection well. In actual scenarios, the monitoring device is often placed in the moisture-proof box A1, so as to be placed in the inspection well to monitor the water state of the drainage pipes connected at both ends of the inspection well. Therefore, further disposing the one-way evaporation moisture-proof device A in the moisture-proof box A1 can better discharge the internal water vapor of the moisture-proof box A1 and prevent the monitoring device disposed therein from getting damp.

[0076] See also Figure 5 and Figure 6 As shown, a fixing column A11 is provided at the bottom of the moisture-proof box A1, and a fixing hole 7 is provided at the bottom of the one-way evaporation moisture-proof device A. The fixing column A11 is fixed to the fixing hole 7 so that the one-way evaporation moisture-proof device A is fixed to the bottom of the moisture-proof box A1.

[0077] See also Figure 5 and Figure 6 As shown, the top of the moisture-proof box A1 is provided with an air outlet A12, and a waterproof breathable membrane is provided on the air outlet A12. The one-way evaporation moisture-proof device A is connected to the air outlet A12 to evaporate the water vapor inside the moisture-proof box A1 and discharge it through the air outlet A12.

[0078] For details, please refer to Figure 5 and Figure 6 As shown, the air outlet A12 is connected to the pipe opening 42 of the one-way evaporation tube 4 .

[0079] In some embodiments, the radius of the air outlet A12 is a capillary radius.

[0080] For details, please continue to refer to Figures 1 to 6 As shown, when the one-way evaporation moisture-proof device A provided in the above embodiment is placed in the moisture-proof box A1, when there is water vapor in the moisture-proof box A1, it will adhere to the condenser 32. At this time, since the condenser 32 is connected to the cold end of the semiconductor refrigeration plate 1, the water vapor attached to the condenser 32 will be liquefied due to the low temperature, and the liquefied liquid will flow down along the condenser 32 into the water collection chamber 33. At this time, a heating plate 31 is provided below the water collection chamber 33, and the heating plate 31 is connected to the hot end of the semiconductor refrigeration plate 1 through the heat pipe 2, that is, the heat pipe of the semiconductor refrigeration plate 1 transfers heat to the heating plate 31 through the heat pipe 2, thereby heating the water collection chamber 33. Due to the high temperature, the liquid in the water collection chamber 33 will be vaporized and evaporated, enter the one-way evaporation pipe 4 connected to the water collection chamber 33, and finally discharged to the pipe mouth 42 along the pipeline, and discharged to the outside of the moisture-proof box A1 through the air outlet A12, thereby ensuring the internal dryness of the moisture-proof box A1 and ensuring the normal operation of the moisture-proof box A1.

[0081] In addition, in order to drive the gas in the one-way evaporation tube 4 to be discharged smoothly, the one-way evaporation moisture-proof device A is also provided with an anti-backflow pipe 5, and the anti-backflow pipe 5 connects the heating plate 31 and the one-way evaporation tube 4. The heating plate 31 heats the gas in the anti-backflow pipe 5, so that the high-temperature gas is discharged along the pipeline into the one-way evaporation tube 4, which serves as another driving force to drive the liquefied gas to be discharged smoothly from the moisture-proof box A1.

[0082] As described above, the one-way evaporation moisture-proof device provided by the present application can effectively evaporate the water vapor inside the moisture-proof box, prevent the monitoring device installed in the moisture-proof box from short-circuiting due to moisture, affecting the normal operation of the monitoring device, and thus effectively ensure the normal operation of the urban drainage network. In addition, the device provided by the present application uses semiconductor cooling sheets, isolation devices, anti-backflow pipes, etc., and sets insulation materials on the condenser, which further improves the energy-saving effect.

[0083] The descriptions of the processes or structures corresponding to the above-mentioned figures have different emphases. For parts that are not described in detail in a certain process or structure, please refer to the relevant descriptions of other processes or structures.

[0084] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A one-way evaporation moisture-proof device, characterized in that: The one-way evaporation moisture-proof device is arranged in a sewage inspection well, and comprises a semiconductor refrigeration sheet, a heat-conducting pipe, a condensate heat-conducting cavity, a one-way evaporation pipe and an anti-backflow pipe; A heating plate and a condenser are provided in the condensation water heat conduction cavity; The cold end of the semiconductor refrigeration sheet is connected to the condenser, so that the condenser condenses the attached water vapor into liquid; the hot end of the semiconductor refrigeration sheet is connected to one end of the heat conduction pipe, and the heat is transferred to the heating plate connected to the other end of the heat conduction pipe through the heat conduction pipe, so that the heating plate evaporates the liquid; as well as The heating plate is also connected to one end of the anti-backflow pipe, so that the gas in the anti-backflow pipe enters the one-way evaporation pipe connected to the other end of the anti-backflow pipe after being heated.

2. The one-way evaporation moisture-proof device according to claim 1, characterized in that: A water collecting chamber is also provided in the condensation heat conducting chamber, and the water collecting chamber is provided below the condensation body; after the water vapor attached to the condensation body is condensed into liquid, it flows downward along the condensation body into the water collecting chamber.

3. The one-way evaporation moisture-proof device according to claim 2, characterized in that: The water collecting chamber is arranged on the heating plate and connected to the one-way evaporation tube. The heating plate heats the water collecting chamber so that the liquid in the water collecting chamber evaporates and then enters the one-way evaporation tube.

4. The one-way evaporation moisture-proof device according to claim 1, characterized in that: The condensation body includes six condensation strips; the six condensation strips surround to form a cylinder and there are gaps between the condensation strips.

5. The one-way evaporation moisture-proof device according to claim 1, characterized in that: An insulating device is also provided in the condensation water heat conduction cavity; an opening is provided in the middle of the insulating device, and the condensate passes through the opening and is in close contact with the opening.

6. The one-way evaporation moisture-proof device according to claim 3, characterized in that: The isolation device is provided with a first circular hole, one end of the one-way evaporation tube is connected to the water collecting cavity, and the other end passes through the first circular hole and extends to the outside of the condensation water heat conduction cavity.

7. The one-way evaporation moisture-proof device according to claim 1, characterized in that: A second circular hole is provided on the isolation device, one end of the anti-backflow tube is sealed and connected to the heating plate, and the other end passes through the second circular hole and extends to the outside of the condensation water heat conduction cavity and is coaxially connected to the outlet vertical section of the one-way evaporation tube outside the condensation water heat conduction cavity.

8. The one-way evaporation moisture-proof device according to claim 7, characterized in that: The one-way evaporation tube is provided with a reduced diameter section in the outlet vertical section outside the condensation water heat conduction cavity, and the reduced diameter section prevents external water vapor from entering the tube section of the one-way evaporation tube located in the condensation water heat conduction cavity.

9. The one-way evaporation moisture-proof device according to claim 1, characterized in that: A fixing hole is provided at the bottom of the one-way evaporation moisture-proof device, and the one-way evaporation moisture-proof device is fixed in a moisture-proof box through the fixing hole. The moisture-proof box is arranged in the sewage inspection well.

10. The one-way evaporation moisture-proof device according to claim 9, characterized in that: An air outlet is arranged on the top of the moisture-proof box, a waterproof and breathable membrane is arranged on the air outlet, and the one-way evaporation moisture-proof device is connected to the air outlet to evaporate the water vapor inside the moisture-proof box and discharge it through the air outlet.

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