Pneumatic device control cabinet

Abstract

This utility model discloses a pneumatic device control cabinet, including a cabinet body, a three-unit assembly and a control valve group installed inside the cabinet, and a moisture-proof column fixedly installed inside the cabinet. The moisture-proof column includes a heating cylinder, a drying cylinder, a power cylinder, and a mounting cylinder. An electric heating element is installed inside the heating cylinder. The drying cylinder is fitted outside the heating cylinder, and its side walls and ends are made of perforated plates. Silica gel desiccant is filled between the heating cylinder and the drying cylinder. The power cylinder is fixedly installed in the drying cylinder, with one end open. An air pump is fixedly installed inside the power cylinder, and its output end is located inside the cabinet. The mounting cylinder is fitted outside the drying cylinder, with an air inlet at one end. The mounting cylinder is fixedly installed in the cabinet, and an exhaust pipe is installed on the mounting cylinder connecting to the outside of the cabinet body. This utility model, by setting up a moisture-proof column, dries the air inside the cabinet after the cabinet is closed, reducing the humidity inside the cabinet, thereby reducing the corrosion of electrical components by moisture and improving their service life.

Description

Technical Field

[0001] This utility model belongs to the field of control cabinet technology and relates to a pneumatic device control cabinet. Background Technology

[0002] A pneumatic device control cabinet is a central control cabinet used to distribute gas and control pneumatic equipment. It typically houses a gas source triplet, control valves, and control circuits. Because the pneumatic device control cabinet contains numerous circuit components, solenoid valves, and other electrical structures, it requires moisture-proofing during use to reduce the risk of moisture corrosion and reduced lifespan.

[0003] Moisture prevention is usually achieved by setting up cabinets with high sealing properties. However, cabinets with high sealing properties are not conducive to heat dissipation and cannot deal with the humid air inside the cabinet in a timely manner. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a pneumatic device control cabinet, which effectively solves the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A pneumatic device control cabinet includes a cabinet body, in which a three-unit assembly and a control valve group are installed, and a moisture-proof column fixedly installed inside the cabinet body, the moisture-proof column comprising...

[0007] A heating cylinder, wherein at least one electric heating tube is provided inside the heating cylinder;

[0008] A drying cylinder is sleeved outside the heating cylinder, and the sidewalls and ends of the drying cylinder are perforated plates;

[0009] Silica gel desiccant, which is filled between the heating cylinder and the drying cylinder;

[0010] A power cylinder is fixedly installed at one end of the drying cylinder. The end of the power cylinder connected to the drying cylinder is an open end. An air pump is fixedly installed inside the power cylinder, and the output end of the air pump is located inside the cabinet.

[0011] The mounting cylinder is sleeved on the outside of the drying cylinder, and an air inlet is provided at one end of the mounting cylinder. The mounting cylinder is fixedly installed on the cabinet.

[0012] An exhaust pipe, which connects the mounting cylinder to the outside of the cabinet;

[0013] Both the exhaust pipe and the air inlet are equipped with one-way valves.

[0014] Optionally, a backflush pump is installed inside the power cylinder, with the input end of the backflush pump connected to the outside of the cabinet and the output end of the backflush pump located inside the power cylinder.

[0015] Optionally, both the input end of the backflush pump and the output end of the suction pump are equipped with electrically controlled valves.

[0016] Optionally, the cabinet is equipped with a ventilation pipe, and the ventilation pipe is equipped with a one-way valve.

[0017] Optionally, the side of the heating cylinder is a perforated plate, and the output end of the backflush pump is connected to the heating cylinder.

[0018] Optionally, the mounting cylinder includes a cylinder body, the upper end of which is threaded with a sealing cap, the drying cylinder is threadedly fixedly connected to the power cylinder, and the drying cylinder is an annular cylinder.

[0019] Optionally, a handle is fixedly installed at the end of the drying cylinder away from the power cylinder.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By installing a moisture-proof column, the humid air inside the cabinet is dried. When the air pump is turned on, a negative pressure is created in the moisture-proof column, forcing air inside the cabinet into the mounting cylinder through the air inlet, and then into the silica gel desiccant filling layer through holes in the side wall of the drying cylinder for drying. The dried air then returns to the cabinet through the output of the air pump. After drying is complete, the electric heating element is turned on to raise the temperature and evaporate the moisture absorbed by the silica gel desiccant. The expanded gas is then discharged to the outside through the exhaust pipe of the mounting cylinder. By installing the moisture-proof column, the air inside the cabinet is dried even when the cabinet is closed, reducing the humidity inside the cabinet, thereby reducing the corrosion of electrical components by moisture and extending their service life.

[0022] 2. By setting up a backflush pump, it is easy to remove moisture during the drying of silica gel desiccant. At the same time, when heat dissipation is required inside the cabinet, the backflush pump can be used in conjunction with an air pump to replace the air inside the cabinet.

[0023] 3. By setting an annular drying cylinder, the drying cylinder can be lifted out together with the silica gel desiccant filling layer after the connection with the power cylinder is disconnected, so as to facilitate the replacement of silica gel desiccant. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0025] Figure 2 This is a schematic diagram of the moisture-proof column part of an embodiment of this utility model.

[0026] Attached reference numerals: 11. Cabinet; 12. Control valve assembly; 13. Tri-unit; 14. Moisture-proof column; 21. Heating cylinder; 22. Electric heating element; 31. Drying cylinder; 32. Silica gel desiccant; 41. Power cylinder; 42. Air pump; 51. Mounting cylinder; 511. Air inlet; 512. Cylinder body; 513. Sealing cap; 514. Handle; 52. Exhaust pipe; 53. Backflush pump; 531. Electrically controlled valve; 111. Ventilation pipe. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1 and Figure 2 This utility model discloses a pneumatic device control cabinet, including a cabinet body 11. A triplet 13 and a control valve assembly 12 are installed inside the cabinet body 11. It also includes a moisture-proof column 14 fixedly installed inside the cabinet body 11. The moisture-proof column 14 includes a heating cylinder 21, a drying cylinder 31, a power cylinder 41, and a mounting cylinder 51. At least one electric heating tube 22 is installed inside the heating cylinder 21. The drying cylinder 31 is sleeved on the outside of the heating cylinder 21. The sidewalls and ends of the drying cylinder 31 are perforated plates. The space between the heating cylinder 21 and the drying cylinder 31 is filled with... Silica gel desiccant 32 and power cylinder 41 are fixedly installed at one end of the drying cylinder 31. The end of the power cylinder 41 connected to the drying cylinder 31 is an open end. An air pump 42 is fixedly installed inside the power cylinder 41. The output end of the air pump 42 is located inside the cabinet 11. The mounting cylinder 51 is sleeved on the outside of the drying cylinder 31. An air inlet 511 is provided at one end of the mounting cylinder 51. The mounting cylinder 51 is fixedly installed in the cabinet 11. An exhaust pipe 52 is installed on the mounting cylinder 51 and connects to the outside of the cabinet 11. Both the exhaust pipe 52 and the air inlet 511 are equipped with one-way valves.

[0029] Specifically, by setting up a moisture-proof column 14, the humid air inside the cabinet 11 is dried. After the air pump 42 is turned on, a negative pressure is created in the moisture-proof column 14, causing the air inside the cabinet 11 to enter the mounting cylinder 51 through the air inlet 511, and then enter the silica gel desiccant 32 filling layer through the holes on the side wall of the drying cylinder 31 for drying. The dried air returns to the cabinet 11 through the output end of the air pump 42. After drying is completed, heating is turned on by the electric heating tube 22 to raise the temperature and evaporate the moisture absorbed by the silica gel desiccant 32. The gas expands and is discharged to the outside through the exhaust pipe 52 of the mounting cylinder 51.

[0030] In this way, by setting up the moisture-proof column 14, the air inside the cabinet 11 is dried after the cabinet 11 is closed, reducing the humidity inside the cabinet, thereby reducing the corrosion of electrical components by moisture and improving their service life.

[0031] In some feasible embodiments, the cabinet 11 is a rectangular cabinet, the triplet 13 is a pneumatic triplet, and the control valve group 12 is a solenoid valve. The cabinet 11, the triplet 13, and the control valve group 12 are all existing technologies and will not be described in detail here.

[0032] The mounting cylinder 51 is cylindrical, with sealing caps 513 threaded to both ends. Multiple circumferentially arranged support legs are fixedly mounted on the bottom sealing cap 513, each secured to the cabinet 11 with bolts. An exhaust pipe 52 and an air inlet 511 are mounted on the top sealing cap 513, with one-way valves installed between them. A power cylinder 41 is fixedly mounted on the bottom sealing cap 513, and a vacuum pump 42 is fixedly mounted on this sealing cap 513. The drying cylinder 31 is cylindrical, with its bottom sealed to the top of the power cylinder 41. The heating cylinder 21 and the electric heating element 22 are both fixedly connected to the bottom sealing cap 513. The output pipe of the vacuum pump 42 passes through the sealing cap 513 and connects to the inside of the cabinet 11.

[0033] By incorporating an electric heating element 22, the silica gel desiccant 32 can be reused multiple times, reducing consumption. For ease of control, a temperature sensor is installed inside the drying cylinder 31, and a humidity sensor is installed inside the cabinet 11 to control the temperature inside the silica gel desiccant 32 between 100 and 120 degrees Celsius, facilitating the removal of moisture from the silica gel desiccant 32.

[0034] As one specific embodiment of the pneumatic device control cabinet provided in the application, a backflush pump 53 is installed inside the power cylinder 41. The input end of the backflush pump 53 is connected to the outside of the cabinet 11, and the output end of the backflush pump 53 is located inside the power cylinder 41.

[0035] Overall, by setting up the backflush pump 53, it is convenient to remove moisture during the drying of silica gel desiccant 32. At the same time, when heat dissipation is required inside the cabinet 11, the backflush pump 53 can be used in conjunction with the air pump 42 to replace the air inside the cabinet.

[0036] Furthermore, both the input end of the backflush pump 53 and the output end of the vacuum pump 42 are equipped with electrically controlled valves 531.

[0037] It should be understood that by setting up the electronically controlled valve 531, the input end of the backflush pump 53 and the output end of the suction pump 42 are controlled, thereby reducing the mutual influence between the two when they work independently.

[0038] Furthermore, the cabinet 11 is equipped with a ventilation pipe 111, and the ventilation pipe 111 is equipped with a one-way valve.

[0039] It should be understood that by setting up the ventilation pipe 111, the air inside the cabinet 11 can be quickly discharged when the backflush pump 53 and the air extraction pump 42 replace the air inside the cabinet 11.

[0040] Furthermore, the side of the heating cylinder 21 is a perforated plate, and the output end of the backflush pump 53 is connected to the heating cylinder 21.

[0041] It should be understood that by setting the side of the heating cylinder 21 to be a perforated plate, the air introduced by the backflush pump 53 when drying the silica gel desiccant 32 is heated by the heating cylinder 21 and then enters the silica gel desiccant 32 filling layer, thereby further improving the drying efficiency.

[0042] In some feasible ways, the bottom of the drying cylinder 31 can be set as a closed end, and the output end of the backflush pump 53 and the input end of the vacuum pump 42 are both connected to the heating cylinder 21, which is connected to the silica gel desiccant 32 filling layer through the heating cylinder 21.

[0043] As another specific embodiment of the pneumatic device control cabinet provided in the application, the mounting cylinder 51 includes a cylinder body 512, and a sealing cover 513 is threadedly connected to the upper end of the cylinder body 512. The drying cylinder 31 is threadedly fixedly connected to the power cylinder 41, and the drying cylinder 31 is an annular cylinder.

[0044] It should be understood that by setting the annular drying cylinder 31, the drying cylinder 31 can be lifted out together with the silica gel desiccant 32 filling layer after the connection with the power cylinder 41 is disconnected, so as to facilitate the replacement of the silica gel desiccant 32.

[0045] Furthermore, a handle 514 is fixedly installed at the end of the drying cylinder 31 away from the power cylinder 41.

[0046] It should be understood that the handle 514 is provided to facilitate lifting the drying cylinder 31.

[0047] In some feasible embodiments, the drying cylinder 31 is an annular cylinder, that is, the drying cylinder 31 includes two concentrically arranged perforated plate cylinders, the lower end of the cylinder is fixedly connected by an annular plate, and the upper end may be provided with a detachable circular plate connected by bolts or buckles, and a sealing strip is provided between the circular plate and the inner cylinder.

[0048] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pneumatic device control cabinet, comprising a cabinet body, wherein a triplet and a control valve assembly are installed inside the cabinet body, characterized in that: It also includes a moisture-proof column fixedly installed inside the cabinet, the moisture-proof column comprising, A heating cylinder, wherein at least one electric heating tube is provided inside the heating cylinder; A drying cylinder is sleeved outside the heating cylinder, and the sidewalls and ends of the drying cylinder are perforated plates; Silica gel desiccant, which is filled between the heating cylinder and the drying cylinder; A power cylinder is fixedly installed at one end of the drying cylinder. The end of the power cylinder connected to the drying cylinder is an open end. An air pump is fixedly installed inside the power cylinder, and the output end of the air pump is located inside the cabinet. The mounting cylinder is sleeved on the outside of the drying cylinder, and an air inlet is provided at one end of the mounting cylinder. The mounting cylinder is fixedly installed on the cabinet. An exhaust pipe, which connects the mounting cylinder to the outside of the cabinet; Both the exhaust pipe and the air inlet are equipped with one-way valves.

2. The pneumatic device control cabinet according to claim 1, characterized in that: A backflush pump is installed inside the power cylinder. The input end of the backflush pump is connected to the outside of the cabinet, and the output end of the backflush pump is located inside the power cylinder.

3. The pneumatic device control cabinet according to claim 2, characterized in that: Both the inlet of the backflush pump and the outlet of the vacuum pump are equipped with electrically controlled valves.

4. The pneumatic device control cabinet according to claim 2, characterized in that: The cabinet is equipped with a ventilation pipe, and the ventilation pipe is equipped with a one-way valve.

5. The pneumatic device control cabinet according to claim 2, characterized in that: The heating cylinder has a perforated plate on its side, and the output end of the backflush pump is connected to the heating cylinder.

6. The pneumatic device control cabinet according to claim 1, characterized in that: The mounting cylinder includes a cylinder body, the upper end of which is threaded with a sealing cap. The drying cylinder is threadedly fixedly connected to the power cylinder, and the drying cylinder is an annular cylinder.

7. The pneumatic device control cabinet according to claim 6, characterized in that: A handle is fixedly installed at the end of the drying cylinder away from the power cylinder.

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