Drying equipment and drying process for pipeline anti-corrosion paint

Abstract

The invention belongs to the technical field of pipeline corrosion prevention, and particularly relates to drying equipment and a drying process for pipeline anti-corrosion paint. The invention provides drying equipment for pipeline anti-corrosion paint, which comprises a drying chamber used for drying a pipeline sprayed with the anti-corrosion paint; the environmental parameter control system is used for regulating and controlling environmental parameters of the drying chamber; and gas in the drying chamber is input into the drying chamber again after being treated by the gas circulating system. According to the drying equipment, the environmental parameters in the drying chamber can be controlled through the environmental parameter control system, and the efficiency of curing the anticorrosive paint is improved; by arranging the gas circulating system, toxic and harmful substances such as formaldehyde, methylbenzene, dimethylbenzene and acetone released by paint and diluents can be treated; and the treated gas flows back to the drying chamber with waste heat, so that the energy consumption of the drying chamber is reduced.

Description

Technical Field

[0001] This invention belongs to the field of pipeline corrosion protection technology, and in particular relates to a drying equipment and drying process for pipeline corrosion protection paint. Background Technology

[0002] Painting for corrosion protection is a crucial step in the corrosion prevention of industrial pipeline materials. It typically involves three coatings: primer, intermediate coat, and topcoat, with a total of approximately 6-8 coats. Each coat must be allowed to cure to a stable state (refer to the paint instructions) before the next coat can be applied. The curing time is significantly affected by ambient temperature and humidity.

[0003] Paint corrosion protection has high requirements for ambient temperature. The substrate temperature must be 3°C higher than the dew point temperature, but the temperature should not be too high. Excessive temperature (usually >40°C) will cause defects such as dry spraying, pinholes, and orange peel. For example, corrosion protection work cannot be carried out when the air temperature is below 5°C, the humidity is above 85%, or in rainy, snowy, foggy, or windy weather.

[0004] Taking a two-component paint commonly used in industrial pipelines as an example, under natural conditions, when the surface temperature of the base material is around 25℃ and the air humidity is <80%, the surface drying time for each layer of primer and intermediate paint is generally 4 hours. The lower the temperature, the slower the drying speed and the lower the construction efficiency. Taking a chemical plant with 120,000 meters of pipeline as an example, assuming each pipeline is 12 meters long, there are approximately 10,000 pipelines. If each pipeline is grouped into 50 groups, and the primer and intermediate paint are applied a total of 4 coats, the total surface drying time is 3200 hours. Using a continuous flow operation, this would take approximately 134 days.

[0005] Clearly, traditional anti-corrosion paint curing methods are subject to external environmental factors. Current technologies typically employ drying processes to eliminate interference from these factors.

[0006] However, when anti-corrosion paint is cured by drying, the paint and thinner will release toxic and harmful substances such as formaldehyde, toluene, xylene, and acetone. These substances will be released into the natural environment with the gas in the drying chamber, causing air pollution problems. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a drying equipment and drying process for pipeline anti-corrosion paint, which can reduce or avoid air pollution problems.

[0008] The technical solution proposed in this invention is as follows: In a first aspect, the present invention provides a drying device for pipeline anti-corrosion paint, comprising: Drying room; the drying room is used to dry pipes coated with anti-corrosion paint. Environmental parameter control system, used to regulate the environmental parameters of the drying chamber; The gas circulation system processes the gas inside the drying chamber before it is reintroduced into the drying chamber.

[0009] Optionally, the environmental parameter control system includes: Temperature control device, used to regulate the temperature inside the drying chamber; Humidity control device, used to dry the gas inside the drying chamber; Temperature monitoring device; the temperature monitoring device is used to monitor the temperature inside the drying chamber. Humidity monitoring device, used to monitor the humidity inside the drying room; The data monitored by the temperature monitoring device and the humidity monitoring device are transmitted to the first controller. The first controller adjusts the temperature control device according to the temperature data and adjusts the humidity control device according to the humidity data.

[0010] Optional, the temperature control device includes: Heating components are used to heat the gas inside the drying chamber; Cooling components are used to cool the gas inside the drying chamber; The first controller turns the heating and cooling components on and off based on the temperature data monitored by the temperature monitoring device.

[0011] Optionally, a hot air blower can be used as the heating element.

[0012] Optionally, a dehumidifier can be used as the humidity control device.

[0013] Optionally, the temperature monitoring device uses a temperature sensor.

[0014] Optionally, the humidity monitoring device uses a humidity sensor.

[0015] Optionally, the cooling component uses heat pipes, which are installed in the drying chamber. Cooling medium is introduced into the heat pipes, and the cooling function is achieved by exchanging heat between the cooling medium and the gas in the drying chamber.

[0016] Optionally, the gas circulation system includes: The gas purification device has its input and output ends connected to the drying chamber via pipes.

[0017] Optionally, the gas purification device may be an air purifier.

[0018] Optionally, an emergency emission system may also be included, which includes: Combustible gas monitoring device, used to monitor data on combustible gases in the drying room; The discharge port is connected to the drying chamber at one end and to the outside of the drying chamber at the other end. The second controller transmits the monitored data from the combustible gas monitoring device to the second controller, which then opens or closes the emission port based on the content of the combustible gas.

[0019] Optionally, the combustible gas monitoring device uses a combustible gas sensor.

[0020] Optionally, a video surveillance system may also be included, which includes: The camera is installed inside the drying chamber; The monitor displays the images monitored by the camera.

[0021] Optionally, the first controller, the second controller, and the display can be integrated together.

[0022] Optionally, the floor of the drying room is covered with a waterproof layer.

[0023] Optionally, air is preferred as the gas in the drying chamber.

[0024] Optionally, the drying chamber is equipped with a pair of channels, symmetrically arranged on both sides of the drying chamber, and the drying chamber is equipped with a conveying system, which includes: The main track extends into channels on both sides of the drying chamber, and drying zones are set on both sides of the main track, which are located inside the drying chamber. The first branch track is laid within the drying zone; The first railcar can slide into the drying chamber along the main rail, and the first railcar is equipped with a second branch rail. The second railcar is slidably connected to the second branch track. When the first branch track is connected to the second branch track, the second railcar can slide into the first branch track along the second branch track.

[0025] Secondly, a drying process, utilizing the aforementioned drying equipment and drying pipes, employs the following steps: Step 1: After the pipeline is coated with anti-corrosion paint, it is transported to the drying area of ​​the drying room through the pipeline conveying system; Step 2: Start the environmental parameter control system to adjust the temperature and humidity of the gas in the drying room. Once the temperature and humidity reach the set range, start the gas circulation system. Step 3: After the anti-corrosion paint on the pipeline has cured, it is transported by the pipeline delivery system to the spray booth for the next coat of coating. Step 4: Repeat steps 1, 2, and 3 above until the final coat of paint has cured. Then, the paint is transported out of the drying chamber via a pipeline system, and the drying process is complete.

[0026] Compared with the prior art, the beneficial effects of the present invention are: The drying equipment of the present invention can control the environmental parameters inside the drying chamber through an environmental parameter control system, thereby improving the efficiency of curing anti-corrosion paint; by setting up a gas circulation system, it can treat toxic and harmful substances such as formaldehyde, toluene, xylene, and acetone released by paint and thinner; the treated gas, carrying residual heat, flows back into the drying chamber, reducing the energy consumption of the drying chamber. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0028] Figure 1 This is a diagram illustrating the principle of the drying chamber environmental parameter control and the working principle of the gas circulation. Figure 2 This is a flow chart of the drying process of the present invention; Figure 3 This is a structural diagram of the external structure of the drying chamber of the present invention; Figure 4 This is a structural diagram of the drying chamber of the present invention; Figure 5 This is a front view of the first and second railcars of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of area A; Figure 7 This is a schematic diagram of the airflow inside the drying chamber of the present invention.

[0029] In the diagram: 1. Drying chamber; 11. Passageway; 13. Drying area; 14. First zone; 15. Second zone; 2. Environmental parameter control system; 21. Temperature control device; 22. Humidity control device; 23. Temperature monitoring device; 24. Humidity monitoring device; 25. First controller; 3. Gas circulation system; 31. Gas purification device; 311. Inlet pipe; 312. Exhaust pipe; 4. Emergency emission system; 41. Combustible gas monitoring device; 42. Emission port; 43. Second controller; 5. Video monitoring system; 6. Conveying system; 61. Main track; 62. First branch track; 63. First railcar; 64. Second branch track; 65. Second railcar; 651. Support; 66. Locking assembly. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Example

[0032] Please refer to Figure 3 , Figure 4 The drying equipment of the present invention has a drying chamber 1, and a pair of channels 11 are symmetrically arranged along the length of the drying chamber 1. After the channels are coated with anti-corrosion paint, they are transported into the drying chamber 1 through the channels 11. The drying chamber 1 is equipped with an environmental parameter control system 2 to regulate the temperature and humidity inside the drying chamber 1. The drying chamber 1 is also equipped with a gas circulation system 3, and the gas inside the drying chamber 1 is processed by the gas circulation system 3 and then transported back to the drying chamber 1.

[0033] It should be noted that the drying room 1 of the present invention adopts a prefabricated panel house, which is composed of light steel structure and fireproof sandwich panel material. The various components are connected and fixed with bolts, and the joints are sealed by filling with foam glue. The walls are covered with anti-pollution and flame-retardant materials.

[0034] It should be noted that the gas in the drying chamber 1 can be air, nitrogen, carbon dioxide, argon, etc., with air being preferred.

[0035] It should be noted that the passage 11 is equipped with a curtain, roller shutter or other openable and closable structure. After the drying chamber 1 starts working, the passage 11 needs to be closed.

[0036] As a further option, refer to Figure 1 The environmental parameter control system 2 includes: a temperature monitoring device 23 for monitoring the temperature inside the drying chamber 1, a humidity monitoring device 24 for monitoring the humidity inside the drying chamber 1, a temperature control device 21 for regulating the temperature inside the drying chamber 1, a humidity control device 22 for regulating the humidity inside the drying chamber 1, and a first controller 25.

[0037] The temperature monitoring device 23 can be a temperature sensor; the humidity monitoring device 24 can be a humidity sensor; the humidity control device 22 can be a dehumidifier; the temperature control device 21 includes a heating component, which can be an electric heating air handling unit, a hot air blower (industrial electric heating fan), an electric heater for air ducts, a split air conditioner, etc., and can also be connected to an external hot air furnace; the temperature control device 21 also includes a cooling component, which can be one of four types of cooling equipment: "compression refrigeration", "absorption / adsorption refrigeration", "evaporative cooling" and "heat exchange cooling", specifically a heat pipe, which is installed in the drying chamber 1, and a cooling medium is introduced into the heat pipe to exchange heat with the high-temperature air in the drying chamber 1 to achieve cooling; the cooling medium can be groundwater, ethylene glycol-water solution, propylene glycol-water, liquid nitrogen, etc.; the first controller 25 monitors the temperature and humidity in the drying chamber 1 through the temperature monitoring device 23 and the humidity monitoring device 24, and opens and closes the cooling component and the heating component according to the temperature data, and opens and closes the humidity control device 22 according to the humidity data.

[0038] It should be noted that the number of temperature monitoring devices 23, humidity monitoring devices 24, heating components, and cooling components is not limited and multiple can be set according to needs. For example, one hot air blower can be set up for every 200 square meters in the drying area 13 of the drying room 1, and the control line of the hot air blower passes through the wall panel of the drying room 1 and is connected to the first controller 25.

[0039] It should be noted that an integrated temperature and humidity sensor can also be used to realize the functions of temperature monitoring device 23 and humidity monitoring device 24.

[0040] Specifically, when the drying chamber 1 is started, the temperature data monitored by the temperature monitoring device 23 is transmitted to the first controller 25 in real time. When the temperature in the drying chamber 1 is lower than t1, all heating components are started (at this time, the cooling components are in the off state). When the temperature in the drying chamber 1 rises to t2, some heating components are turned off (at this time, the cooling components are in the off state). When the temperature in the drying chamber 1 rises to t3, all heating components are turned off and some cooling components are started. When the temperature in the drying chamber 1 rises to t4, all cooling components are started (at this time, the heating components are in the off state).

[0041] As a further option, refer to Figure 1The gas circulation system 3 includes a gas purification device 31. Air containing harmful substances in the drying chamber 1 enters the gas purification device 31 through a pipe, and the purified air is then discharged back into the drying chamber 1. This method serves two purposes: firstly, the gas purification device 31 absorbs toxic and harmful substances such as formaldehyde, toluene, xylene, and acetone, preventing them from being released into the environment and causing pollution; secondly, the air containing toxic and harmful gases retains a large amount of heat, and directly discharging it into the drying chamber 1 would result in significant heat loss. Air treated by the air purification device, however, has limited heat loss and high reuse value. Therefore, recycling the air from the drying chamber 1 also helps reduce energy consumption and save energy.

[0042] It should be noted that the gas purification device 31 in this solution adopts an air purifier from the prior art.

[0043] As a further option, refer to Figure 2 The drying chamber 1 is also equipped with an emergency exhaust system 4. The emergency exhaust system 4 includes a combustible gas monitoring device 41, an exhaust port 42, and a second controller 43. The exhaust port 42 is located on the drying chamber 1. The combustible gas monitoring device 41 monitors the combustible gas data within the drying chamber 1 and transmits the data to the second controller 43. The second controller 43 opens or closes the exhaust port 42 based on the combustible gas data. By implementing the emergency exhaust system 4, when the combustible gas density within the drying chamber 1 approaches a threshold, the air within the drying chamber 1 is exhausted, achieving the purpose of explosion prevention.

[0044] It should be noted that the combustible gas monitoring device 41 uses a combustible gas concentration sensor.

[0045] As a further option, refer to Figure 3 The drying chamber 1 is also equipped with a video monitoring system 5, which includes a camera and a monitor installed inside the drying chamber 1.

[0046] It should be noted that the first controller 25, the second controller 43, and the display can be integrated together for the convenience of operators.

[0047] By setting up the video monitoring system 5, firstly, it can monitor the interior of the drying chamber 1 in real time, enabling early fire identification and reducing the risk of fire or explosion; secondly, it can remotely observe the color change of the workpiece and the leveling state of the paint film through video, providing an intuitive basis for adjusting the process of the drying chamber 1 and ensuring drying quality; and thirdly, it can reduce the frequency of inspections and significantly reduce the labor intensity of workers.

[0048] It should be noted that the number of cameras is not limited. Generally, one camera is installed at each diagonal corner of the top of the drying chamber 1 so that the monitoring area can cover the drying area 13 and a pair of passages 11.

[0049] As a further solution, an impermeable layer is laid on the floor of drying chamber 1. By setting up the impermeable layer, the organic solvents in the paint can be prevented from seeping into the soil and water sources.

[0050] It should be noted that the floor of drying room 1 needs to be hardened and leveled in advance in order to lay materials to make a waterproof layer. Example

[0051] Further improvements are made based on Example 1 by setting up a conveying system 6 to improve the conveying efficiency of the pipeline.

[0052] refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 The conveying system 6 includes a main track 61, which extends into the drying chamber 1 along a passage 11 on one side and extends out from the passage 11 on the other side. A first railcar 63 is mounted on the main track 61 and slides along the main track 61 to enter and exit the drying chamber 1. Drying zones 13 are symmetrically arranged inside the drying chamber 1, located on both sides of the main track 61. One drying zone 13 is a first area 14, and the other drying zone 13 is a second area 15. A first branch is provided within the drying zone 13. Preferably, the first branch track 62 is perpendicular to the main track 61; a second branch track 64 is provided on the top of the first track vehicle 63, the second branch track 64 is located on the same horizontal plane as the first branch track 62, and the first branch track 62 is parallel to the second branch track 64, and the first track vehicle 63 can be connected to any pair of the first branch tracks 62 by moving; a second track vehicle 65 is provided on the second branch track 64, and the second track vehicle 65 can move along the second branch track 64 to the first branch track 62.

[0053] During operation, the pipes after being coated with anti-corrosion paint are placed on the second railcar 65. The pipes are moved between the drying chamber 1 and the spraying chamber, and during the process of transporting the pipes to the next process after final curing, there is no need to move the pipes, which reduces labor intensity and improves work efficiency.

[0054] It should be noted that the main track 61, the first branch track 62 and the second branch track 64 in this scheme each include a pair of tracks arranged opposite each other; obviously, the main track 61, the first branch track 62 and the second branch track 64 can also be implemented using three or more tracks.

[0055] It should be noted that in actual operation, there can be multiple pairs of second branch tracks 64 on the first track car 63; obviously, there are multiple pairs of first branch tracks 62 set in the drying zone 13.

[0056] As a further solution, the conveying system 6 is also provided with a locking assembly 66, which is used to fix the second railcar 65.

[0057] Specifically, the second track car 65 is provided with a bracket 651, which is L-shaped. The slider or pulley of the second track car 65 is fixed on the horizontal end of the bracket 651, and the vertical end of the bracket 651 is fixed on the body of the second track car 65. The locking assembly 66 includes a bolt. The bolt thread passes downward through the horizontal end of the bracket 651 and is threadedly connected to the first branch track 62 or the first track car 63. The bolt head is restricted from passing through the bracket 651.

[0058] It should be noted that when the second railcar 65 is located on the first railcar 63, the second railcar 65 is restricted from moving in the direction of the main rail 61 by the second branch rail 64, and the second railcar 65 is restricted from moving in the direction of the second branch rail 64 by the locking assembly 66; when the second railcar 65 is located on the first branch rail 62, the second railcar 65 is restricted from moving in the direction of the main rail 61 by the first branch rail 62, and the second railcar 65 is restricted from moving in the direction of the first branch rail 62 by the locking assembly.

[0059] It should be noted that the locking component 66 can also be implemented in other ways, such as by clamps.

[0060] refer to Figure 4 , Figure 7 In actual use, two sets of gas purification devices 31 are set up, symmetrically arranged on both sides of the main track 61. Each set of gas purification devices 31 is equipped with an inlet pipe 311 and an exhaust pipe 312. The inlet pipe 311 is provided with multiple inlet holes, which are arranged sequentially along the length of the inlet pipe 311. The exhaust pipe 312 is provided with multiple exhaust holes, which are arranged sequentially along the length of the exhaust pipe 312. The inlet pipe 311 is connected to the input end of the gas purification device 31 through a fitting, and the exhaust pipe 312 is connected to the output end of the gas purification device 31 through a fitting. Both the inlet pipe 311 and the exhaust pipe 312 are arranged along the direction of the main track 61. In the vertical direction, the inlet pipe 311 and the exhaust pipe 312 are arranged sequentially. In the same gas purification device 31, the inlet pipe 311 and the exhaust pipe 312 are located in the first region 14 and the second region 15, respectively.

[0061] It should be noted that, in order to avoid the airflow directly impacting the pipe to be cured, the exhaust port can be set at an angle so that its spray direction is towards the inner wall of the drying chamber 1, with the preferred angle being 45 degrees; obviously, the air inlet port can also be set at an angle.

[0062] It should be noted that both the intake pipe 311 and the exhaust pipe 312 are located inside the drying chamber 1.

[0063] It should be noted that in the same gas purification device 31, the air inlet pipe 311 can be located above the exhaust pipe 312, or the air inlet pipe 311 can be located below the exhaust pipe 312.

[0064] It should be noted that, in order to improve the working efficiency of the dehumidifier, the dehumidifier can be connected in series with the gas purification device 31.

[0065] By cleverly setting the positions of the air inlet pipe 311 and the exhaust pipe 312, firstly, air can flow rapidly in the vertical direction within the drying chamber 1, and also in the first area 14 and the second area 15. This prevents large gradients in humidity and temperature within the drying chamber 1, especially ensuring relatively uniform humidity and temperature in the drying zone 13. This guarantees drying quality (when the temperature gradient is large, the paint surface evaporates too quickly in areas with high temperatures, forming a surface film that hinders the evaporation of underlying solvents or moisture, leading to quality problems such as blistering, orange peel, and wrinkling; when the humidity gradient is large, moisture in high-humidity areas is difficult to evaporate, resulting in slow drying, whitening, and obvious sagging, while low-humidity areas may experience surface dryness with internal moisture, causing a decrease in adhesion). Secondly, since air can flow rapidly not only in the vertical direction, but also in the first zone 14 and the second zone 15, it can quickly and evenly disperse combustible gas in the drying chamber 1, thereby avoiding excessively high local concentrations of combustible gas in the drying chamber 1 and improving production safety (excessive concentration of combustible gas can easily cause dangerous situations such as fires and explosions). Thirdly, since the gas flows within the first zone 14 and the second zone 15, the air in the drying chamber can pass through the two gas purification devices 31 sequentially in a short period of time. If one of the gas purification devices 31 is damaged or fails, there is no need to shut down the machine. The drying chamber continues to operate, which, although increasing the load on the other gas purification device 31, ensures that the gas circulation system 3 can operate normally. Firstly, the lack of shutdown improves the working efficiency of the drying chamber 1; secondly, it ensures the normal operation of the gas purification system 3, preventing the leakage of toxic and harmful gases and eliminating the risk of operator poisoning, thus avoiding safety accidents. Example

[0066] The drying equipment described in the above embodiment illustrates the anti-corrosion paint curing process for pipelines.

[0067] The following steps are used: Step 1: After the pipeline is coated with anti-corrosion paint, it is transported to the drying area of ​​the drying room through the pipeline conveying system; Step 2: Start the environmental parameter control system to adjust the temperature and humidity of the gas in the drying room. Once the temperature and humidity reach the set range, start the gas circulation system. Step 3: After the anti-corrosion paint on the pipeline has cured, it is transported by the pipeline delivery system to the spray booth for the next coat of coating. Step 4: Repeat steps 1, 2, and 3 above until the final coat of paint has cured. Then, the paint is transported out of the drying chamber via a pipeline system, and the drying process is complete.

[0068] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drying device for pipeline anti-corrosion paint, characterized in that, include: Drying chamber (1), the drying chamber (1) is used to dry the pipes coated with anti-corrosion paint; Environmental parameter control system (2) is used to regulate the environmental parameters of the drying chamber (1); The gas in the drying chamber (1) is processed by the gas circulation system (3) and then reintroduced into the drying chamber (1).

2. The drying equipment according to claim 1, characterized in that, The environmental parameter control system (2) includes: Temperature control device (21) is used to regulate the temperature inside the drying chamber (1); Humidity control device (22), the humidity control device (22) is used to dry the gas in the drying chamber (1); Temperature monitoring device (23) is used to monitor the temperature inside the drying chamber (1); Humidity monitoring device (24), used to monitor the humidity inside the drying chamber (1); The data of the first controller (25), the temperature monitoring device (23) and the humidity monitoring device (24) are transmitted to the first controller (25). The first controller (25) adjusts the temperature control device (21) according to the temperature data and adjusts the humidity control device (22) according to the humidity data.

3. The drying equipment according to claim 2, characterized in that, Temperature control device (21) includes: Heating assembly, used to heat the gas inside the drying chamber (1); Cooling assembly, used to cool the gas inside the drying chamber (1).

4. The drying equipment according to any one of claims 1-3, characterized in that, The gas circulation system (3) includes: The gas purification device (31) has its input and output ends connected to the drying chamber (1) via pipes.

5. The drying equipment according to claim 1, characterized in that, It also includes an emergency emission system (4), which includes: Combustible gas monitoring device (41) is used to monitor the data of combustible gas in the drying chamber (1); The discharge port (42) is connected at one end to the drying chamber (1) and at the other end to the outside of the drying chamber (1); The second controller (43) transmits the monitored data from the combustible gas monitoring device (41) to the second controller (43), and the second controller (43) opens and closes the discharge port (42) according to the content of combustible gas.

6. The drying equipment according to claim 1, characterized in that, It also includes a video surveillance system (5), which includes: A camera is installed inside the drying chamber (1); The monitor displays the images monitored by the camera.

7. The drying equipment according to claim 1, characterized in that, The floor of the drying room (1) is covered with an impermeable layer.

8. The drying equipment according to claim 1, characterized in that, The drying chamber (1) is provided with channels (11), a pair of channels (11) are symmetrically arranged on both sides of the drying chamber (1), and the drying chamber (1) is provided with a conveying system (6), the conveying system (6) includes: The main track (61) extends into the drying chamber (1) to both sides, and drying zones (13) are provided on both sides of the main track (61). The drying zones (13) are located inside the drying chamber (1). The first branch track (62) is laid in the drying area (13); The first track car (63) can slide into the drying chamber (1) along the main track (61). The first track car (63) is equipped with a second branch track (64). The second railcar (65) is slidably connected to the second branch rail (64). When the first branch rail (62) is connected to the second branch rail (64), the second railcar (65) can slide into the first branch rail (62) along the second branch rail (64).

9. The drying equipment according to claim 8, characterized in that, Locking components (66) are provided on both the first branch track (62) and the second branch track (64), and the locking components (66) are used to fix the second track car (65).

10. A drying process, utilizing the drying equipment according to any one of claims 1-9 to dry the pipes, characterized in that, The following steps are used: Step 1: After the pipeline is sprayed with anti-corrosion paint in the spray booth, it is transported to the drying area of ​​the drying chamber through the pipeline conveying system. Step 2: Start the environmental parameter control system to adjust the temperature and humidity of the gas in the drying room. Once the temperature and humidity reach the set range, start the gas circulation system. Step 3: After the anti-corrosion paint on the pipeline has cured, it is transported by the pipeline delivery system to the spray booth for the next coat of coating. Step 4: Repeat steps 1, 2, and 3 above until the final coat of paint has cured. Then, the paint is transported out of the drying chamber via a pipeline system, and the drying process is complete.

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