Instrument air dehydration anti-freezing device

Abstract

The utility model relates to the technical field of industrial instruments, in particular to an instrument air dehydration anti-freezing device which comprises a box body and a filter box, an instrument air pipe A for conveying compressed gas is inserted in the outer side of the box body, one end of the instrument air pipe A extends to the filter box for dehydrating the compressed gas, and the other end of the instrument air pipe A extends to the filter box for dehydrating the compressed gas. An instrument air pipe B for outputting dehydrated compressed gas is inserted into the outer side of the filter box, a filter screen for filtering foreign matters in the compressed gas is fixed to the inner side of the filter box through screws, a fixing frame for dehydrating the compressed gas is fixed to the interior of the filter box through screws, and an adsorption net and a drying net are fixed to the interior of the fixing frame through screws. The adsorption net is located on the left of the drying net; through the arrangement of the fixing frame, the filter box, the fan, the support, the electric heating plate, the adsorption net, the drying net and the filter net, the problem that when an existing instrument air system is used, dehydration and anti-freezing treatment is inconvenient to conduct on compressed air conveyed in an instrument air pipe is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial instruments, in particular to an instrument air dehydration and antifreezing device. Background Art

[0002] The instrument air system refers to the compressed air system for instruments. The instrument air system is the power source of the instrument system and is mainly used to open and close valves and also used to purge instruments. The quality of the gas used is strictly controlled, especially factors such as temperature and moisture that will affect the control of valves. It is also used to drive factory pneumatic actuators, including the air source for opening, closing, balancing, etc. Generally, there are high requirements for the quality of the air source, such as the content of oil, water, etc. In some occasions, it is also called the instrument air system.

[0003] However, when the existing instrument air system is used, the compressed gas transported by the instrument air duct is mixed with some moisture. When the outside temperature is cold, the moisture in the compressed gas will solidify and be fixed inside the instrument air duct, causing the instrument air duct to freeze and block, which has a certain impact on the transportation efficiency of the compressed gas. Therefore, an instrument air dehydration and antifreeze device is set. Utility Model Content

[0004] The main purpose of the utility model is to provide an instrument air dehydration and antifreeze device. The utility model solves the problem that when the existing instrument air system is in use, it is inconvenient to dehydrate and antifreeze the compressed gas transported in the instrument air duct through the arrangement of a fixing frame, a filter box, a fan, a bracket, an electric heating plate, an adsorption net, a drying net and a filter net.

[0005] The technical solution adopted by the utility model to solve its technical problems is an instrument air dehydration and antifreeze device, comprising a box body and a filter box, an instrument air duct A for conveying compressed gas is plugged into the outer side of the box body, one end of the instrument air duct A extends to the filter box for dehydrating the compressed gas, an instrument air duct B for outputting the dehydrated compressed gas is plugged into the outer side of the filter box, a filter screen for filtering foreign matter in the compressed gas is screwed fixed to the inner side of the filter box, a fixing frame for dehydrating the compressed gas is screwed fixed to the inside of the filter box, an adsorption net and a drying net are screwed fixed to the inside of the fixing frame, and the adsorption net is located on the left side of the drying net, a bracket for connecting an electric heating plate is screwed fixed to the inside of the box body, a fan for accelerating the air flow rate on the surface of the electric heating plate is screwed fixed to the outside of the bracket, and a through hole for allowing external air to enter the inside of the box body is opened on the surface of the box body.

[0006] By adopting the above technical scheme, when the instrument air duct A transports compressed gas, the transported compressed gas enters the filter box in the box, and then the filter in the filter box filters the foreign matter in the gas, and then the compressed gas enters the fixed frame in the filter box, the adsorption net and the drying net in the fixed frame are made of highly absorbent resin and desiccant, the highly absorbent resin absorbs the moisture in the compressed gas, and then the desiccant absorbs the water in the compressed gas again, and at the same time, the electric heating plate in the bracket inside the box starts to work, the current passes through the electric heating alloy wire in the electric heating plate, the electric heating alloy wire heats up, converts the electrical energy into thermal energy, and conducts it to the surface of the electric heating plate, and then the fan blades in the fan outside the bracket rotate, so that the external air enters the box through the through hole, accelerates the air flow speed of the electric heating plate, and makes the generated hot air contact with the surface of the instrument air duct A and the instrument air duct B, so as to facilitate the dehydration and antifreeze treatment of the compressed gas in the instrument air duct A and the instrument air duct B.

[0007] Specifically, a handle for driving the bidirectional threaded screw to rotate is inserted on the outside of the box body, and the bidirectional threaded screw is externally threadedly connected with a support block A and a support block B. A limit plate A in contact with the filter box is welded on the outside of the support block A, and a limit plate B for clamping the filter box is welded on the outside of the support block B. The outsides of the instrument air ducts A and B are both sleeved with threaded sleeves that connect the instrument air ducts A and B to the filter box respectively.

[0008] By adopting the above technical scheme, when the filter box in the box body needs to be disassembled and replaced, the handle outside the box body drives the two-way threaded screw to rotate, and then the support block A and the support block B outside the two-way threaded screw are moved laterally in opposite directions, and then the support block A drives the limit plate A to move, and the support block B drives the limit plate B to move, and then the limit plate A and the limit plate B are separated from the filter box, and then the threaded sleeves on the outside of the instrument air duct A and the instrument air duct B are respectively rotated to separate the rotating instrument air duct A and the instrument air duct B from the filter box, and then the filter box is taken out of the box body, and then the new filter box is placed in the box body, and then the instrument air duct A and the instrument air duct B are respectively placed in the filter box, and then the threaded sleeves on the outside of the instrument air duct A and the instrument air duct B are rotated to make the instrument air duct A and the instrument air duct B fixedly connected to the filter box, and then the support block A drives the limit plate A to move, and the support block B drives the limit plate B to move, and the limit plate A and the limit plate B clamp the filter box, thereby facilitating the disassembly and replacement of the filter box.

[0009] Specifically, a dustproof net is screwed fixed inside the through hole to prevent foreign matter from entering the box.

[0010] By adopting the above technical solution, when outside air enters the interior of the box through the through hole, the dustproof net in the through hole prevents foreign matter from entering the interior of the box through the through hole.

[0011] Specifically, the outer hinge of the box is connected with a box door for inspecting the components in the box.

[0012] By adopting the above technical solution, when a device in the box fails, the door outside the box is opened, thereby facilitating the inspection and repair of the device in the box.

[0013] Specifically, the input ends of the fan and the electric heating plate are electrically connected to the output end of the external power supply.

[0014] By adopting the above technical solution and connecting to an external power source, the electrical device can work normally.

[0015] Beneficial effects of the utility model:

[0016] (1) The utility model discloses an instrument air dehydration and antifreeze device. When the instrument air duct A transports compressed gas, the transported compressed gas enters the filter box in the housing, and then the filter in the filter box filters foreign matter in the gas. Then the compressed gas enters the fixed frame in the filter box. The adsorption net and the drying net in the fixed frame are made of highly absorbent resin and desiccant. The highly absorbent resin absorbs moisture in the compressed gas. Then the desiccant absorbs the water in the compressed gas again. At the same time, the electric heating plate in the bracket inside the housing starts to work. The current passes through the electric heating alloy wire in the electric heating plate. The electric heating alloy wire heats up and converts electrical energy into thermal energy, which is then conducted to the surface of the electric heating plate. Then the fan blades outside the bracket rotate, allowing external air to enter the housing through the through hole, thereby accelerating the air flow rate of the electric heating plate, and allowing the generated hot air to contact the surfaces of the instrument air duct A and the instrument air duct B, thereby facilitating the dehydration and antifreeze treatment of the compressed gas in the instrument air duct A and the instrument air duct B.

[0017] (2) The utility model discloses an instrument air dehydration and antifreeze device. When the filter box in the housing is to be disassembled and replaced, the handle outside the housing drives the bidirectional threaded screw to rotate, and then the support block A and the support block B outside the bidirectional threaded screw move in opposite directions laterally. Then the support block A drives the limit plate A to move, and the support block B drives the limit plate B to move. Then the limit plate A and the limit plate B are separated from the filter box. Then the threaded sleeves outside the instrument air duct A and the instrument air duct B are respectively rotated to separate the rotating instrument air duct A and the instrument air duct B from the filter box. Then the filter box is taken out of the housing. Then a new filter box is placed in the housing. Then the instrument air duct A and the instrument air duct B are respectively placed in the filter box. Then the threaded sleeves outside the instrument air duct A and the instrument air duct B are respectively rotated to fix the instrument air duct A and the instrument air duct B with the filter box. Then the support block A drives the limit plate A to move, and the support block B drives the limit plate B to move. The limit plate A and the limit plate B clamp the filter box, thereby facilitating the disassembly and replacement of the filter box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of an instrument air dehydration and antifreeze device of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of a box of an instrument air dehydration and antifreeze device according to the utility model;

[0021] Figure 3 This is a schematic diagram of the partial internal structure of a box body of an instrument air dehydration and antifreezing device according to the utility model from a side view;

[0022] In the figure: 1. Instrument air duct A; 2. Box door; 3. Box body; 4. Instrument air duct B; 5. Handle; 6. Dust screen; 7. Through hole; 8. Filter box; 9. Threaded sleeve; 10. Filter screen; 11. Bracket; 12. Electric heating plate; 13. Fan; 14. Bidirectional threaded screw; 15. Fixed bracket; 16. Adsorption net; 17. Drying net; 18. Support block A; 19. Limit plate A; 20. Limit plate B; 21. Support block B. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] In order to dehydrate and antifreeze the compressed gas in the instrument air duct 1A and the instrument air duct B4, as an embodiment of the utility model, Figure 1 , Figure 2 and Figure 3 As shown, an instrument air dehydration and antifreeze device described in the utility model comprises a box body 3 and a filter box 8, an instrument air duct A1 for conveying compressed gas is plugged into the outer side of the box body 3, one end of the instrument air duct A1 extends to the filter box 8 for dehydrating the compressed gas, an instrument air duct B4 for outputting the dehydrated compressed gas is plugged into the outer side of the filter box 8, a filter screen 10 for filtering foreign matter in the compressed gas is screwed fixed to the inner side of the filter box 8, a fixing frame 15 for dehydrating the compressed gas is screwed fixed inside the filter box 8, an adsorption net 16 and a drying net 17 are screwed fixed inside the fixing frame 15, and the adsorption net 16 is located on the left side of the drying net 17, a bracket 11 for connecting the electric heating plate 12 is screwed fixed inside the box body 3, a fan 13 for accelerating the air flow rate on the surface of the electric heating plate 12 is screwed fixed to the outer side of the bracket 11, and a through hole 7 for allowing external air to enter the inside of the box body 3 is opened on the surface of the box body 3.

[0025] During use, when the instrument air duct A1 transports compressed gas, the transported compressed gas enters the filter box 8 in the housing 3, and then the filter screen 10 in the filter box 8 filters foreign matter in the gas, and then the compressed gas enters the fixed frame 15 in the filter box 8. The adsorption net 16 and the drying net 17 in the fixed frame 15 are made of highly absorbent resin and desiccant. The highly absorbent resin absorbs moisture in the compressed gas, and then the desiccant absorbs the water in the compressed gas again. At the same time, the electric heating plate 12 in the bracket 11 inside the housing 3 starts to work, and the current passes through the electric heating alloy wire in the electric heating plate 12. The electric heating alloy wire heats up and converts electrical energy into thermal energy, which is conducted to the surface of the electric heating plate 12. Then the fan blades in the fan 13 outside the bracket 11 rotate, so that the external air enters the housing 3 through the through hole 7, accelerates the air flow speed of the electric heating plate 12, and makes the generated hot air contact with the surface of the instrument air duct A1 and the instrument air duct B4, so as to facilitate the dehydration and antifreeze treatment of the compressed gas in the instrument air duct A1 and the instrument air duct B4.

[0026] In order to disassemble and replace the filter box 8, for example, Figure 3 As shown, the utility model also includes a handle 5 for driving the bidirectional threaded screw 14 to rotate inserted on the outside of the box body 3, the bidirectional threaded screw 14 is externally threadedly connected with a support block A18 and a support block B21, the support block A18 is welded with a limit plate A19 contacting the filter box 8 on the outside, the support block B21 is welded with a limit plate B20 for clamping the filter box 8 on the outside, and the instrument air duct A1 and the instrument air duct B4 are both externally sleeved with a threaded sleeve 9 that connects the instrument air duct A1 and the instrument air duct B4 to the filter box 8 respectively.

[0027] During use, when the filter box 8 in the box body 3 is to be disassembled and replaced, the handle 5 outside the box body 3 drives the bidirectional threaded screw 14 to rotate, and then the support block A18 and the support block B21 outside the bidirectional threaded screw 14 move in opposite directions laterally, and then the support block A18 drives the limit plate A19 to move, and the support block B21 drives the limit plate B20 to move, and then the limit plate A19 and the limit plate B20 are separated from the filter box 8, and then the threaded sleeves 9 outside the instrument air duct A1 and the instrument air duct B4 are respectively rotated to separate the rotating instrument air duct A1 and the instrument air duct B4 from the filter box 8. Then, take out the filter box 8 from the box body 3, then put the new filter box 8 into the box body 3, and then put the instrument air duct A1 and the instrument air duct B4 into the filter box 8 respectively, and then rotate the threaded sleeve 9 on the outside of the instrument air duct A1 and the instrument air duct B4, so that the instrument air duct A1 and the instrument air duct B4 are fixedly connected to the filter box 8 respectively, and then the support block A18 drives the limit plate A19 to move, and the support block B21 drives the limit plate B20 to move, and the limit plates A19 and B20 clamp the filter box 8, so as to facilitate the disassembly and replacement of the filter box 8.

[0028] In order to prevent foreign matter from entering the interior of the box body 3 through the through hole 7, for example, Figure 1 As shown, the utility model further includes a dustproof net 6 fixed by screws inside the through hole 7 to prevent foreign matter from entering the interior of the box body 3 .

[0029] When in use, when outside air enters the interior of the box body 3 through the through hole 7 , the dustproof net 6 in the through hole 7 prevents foreign matter from entering the interior of the box body 3 through the through hole 7 .

[0030] In order to repair the components in the box 3, for example, Figure 1 As shown, the utility model also includes that the box body 3 is hingedly connected to an outer door 2 for inspecting and repairing the components in the box body 3.

[0031] When in use, when a device in the box body 3 fails, the box door 2 outside the box body 3 is opened, so that the device in the box body 3 can be easily repaired.

[0032] In order to use the electrical equipment to work normally, for example, Figure 2 As shown, the utility model also includes that the input ends of the fan 13 and the electric heating plate 12 are both electrically connected to the output end of the external power supply.

[0033] When in use, by connecting to an external power source, the electrical equipment can work normally.

[0034] When the utility model is in use, when the instrument air duct A1 conveys compressed gas, the conveyed compressed gas enters the filter box 8 in the box body 3, and then the filter screen 10 in the filter box 8 filters foreign matter in the gas, and then the compressed gas enters the fixed frame 15 in the filter box 8, the adsorption net 16 and the drying net 17 in the fixed frame 15 are made of highly absorbent resin and desiccant, the highly absorbent resin absorbs moisture in the compressed gas, and then the desiccant absorbs the water in the compressed gas again, and at the same time the electric heating plate 12 in the bracket 11 inside the box body 3 starts to work, the current passes through the electric heating alloy wire in the electric heating plate 12, the electric heating alloy wire heats up, converts electrical energy into thermal energy, and conducts it to the surface of the electric heating plate 12, and then the fan blades in the fan 13 outside the bracket 11 rotate, so that the external air enters the box body 3 through the through hole 7, accelerates the air flow speed of the electric heating plate 12, and makes the generated hot air contact with the surface of the instrument air duct A1 and the instrument air duct B4, so as to facilitate the dehydration and antifreeze treatment of the compressed gas in the instrument air duct A1 and the instrument air duct B4;

[0035] When the filter box 8 in the box body 3 is to be disassembled and replaced, the handle 5 outside the box body 3 drives the bidirectional threaded screw 14 to rotate, and then the support block A18 and the support block B21 outside the bidirectional threaded screw 14 move in opposite directions laterally, and then the support block A18 drives the limit plate A19 to move, and the support block B21 drives the limit plate B20 to move, and then the limit plate A19 and the limit plate B20 are separated from the filter box 8, and then the threaded sleeves 9 outside the instrument air duct A1 and the instrument air duct B4 are respectively rotated to separate the rotating instrument air duct A1 and the instrument air duct B4 from the filter box 8, and then Then, the filter box 8 is taken out from the box body 3, and then a new filter box 8 is placed in the box body 3, and then the instrument air duct A1 and the instrument air duct B4 are respectively placed in the filter box 8, and then the threaded sleeves 9 on the outside of the instrument air duct A1 and the instrument air duct B4 are rotated, so that the instrument air duct A1 and the instrument air duct B4 are respectively fixedly connected to the filter box 8, and then the support block A18 drives the limit plate A19 to move, and the support block B21 drives the limit plate B20 to move, and the limit plates A19 and the limit plates B20 clamp the filter box 8, so as to facilitate the disassembly and replacement of the filter box 8;

[0036] When outside air enters the box body 3 through the through hole 7, the dustproof net 6 in the through hole 7 prevents foreign matter from entering the box body 3 through the through hole 7;

[0037] When a device in the box body 3 fails, the door 2 outside the box body 3 is opened, so that the device in the box body 3 can be easily repaired.

[0038] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. An instrument air dehydration and antifreeze device, characterized in that: The invention comprises a box body (3) and a filter box (8), wherein an instrument air duct A (1) for conveying compressed gas is plugged into the outer side of the box body (3), one end of the instrument air duct A (1) extends to a filter box (8) for dehydrating the compressed gas, an instrument air duct B (4) for outputting the dehydrated compressed gas is plugged into the outer side of the filter box (8), a filter screen (10) for filtering foreign matter in the compressed gas is screwed fixedly on the inner side of the filter box (8), and a filter screen (10) for dehydrating the compressed gas is screwed fixedly on the inner side of the filter box (8). A water treatment fixing frame (15), wherein an adsorption net (16) and a drying net (17) are fixed by screws inside the fixing frame (15), and the adsorption net (16) is located on the left side of the drying net (17); a bracket (11) connected to the electric heating plate (12) is fixed by screws inside the box body (3); a fan (13) for accelerating the air flow rate on the surface of the electric heating plate (12) is fixed by screws on the outer side of the bracket (11); and a through hole (7) is opened on the surface of the box body (3) for allowing external air to enter the interior of the box body (3).

2. The instrument air dehydration and antifreeze device according to claim 1, characterized in that: A handle (5) for driving a bidirectional threaded screw (14) to rotate is inserted on the outside of the box body (3); a support block A (18) and a support block B (21) are externally threadedly connected; a limit plate A (19) for contacting the filter box (8) is welded on the outside of the support block A (18); a limit plate B (20) for clamping the filter box (8) is welded on the outside of the support block B (21); and threaded sleeves (9) are sleeved on the outside of the instrument air duct A (1) and the instrument air duct B (4) for connecting the instrument air duct A (1) and the instrument air duct B (4) to the filter box (8) respectively.

3. The instrument air dehydration and antifreeze device according to claim 1, characterized in that: A dustproof net (6) is screwedly fixed inside the through hole (7) to prevent foreign matter from entering the interior of the box body (3).

4. The instrument air dehydration and antifreeze device according to claim 1, characterized in that: The box body (3) is hingedly connected to an outer door (2) for inspecting and repairing components inside the box body (3).

5. The instrument air dehydration and antifreeze device according to claim 1, characterized in that: The input ends of the fan (13) and the electric heating plate (12) are both electrically connected to the output end of an external power source.

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