High-precision filtering pressure reducing valve

Abstract

The high-precision filtering pressure reducing valve comprises a pressure reducing valve body, a fixing seat and a cleaning assembly, the left end of the pressure reducing valve body is communicated with an air inlet, the right end of the pressure reducing valve body is communicated with an air outlet pipe, an adjusting knob is installed at the upper end of the pressure reducing valve body, and an equipment cabin is installed at the bottom end of the pressure reducing valve body. The bottom end of the equipment cabin is in threaded connection with a valve cover, a filter element device is installed in the equipment cabin, and one part of a cleaning assembly is installed on the filter element device; the problems that in the using process of some existing filtering pressure reducing valves in the current market, filter elements in the pressure reducing valves usually need to be cleaned or replaced regularly, but the pressure reducing valves need to be disassembled in the maintaining process and then assembled after being cleaned and maintained, so that the whole cleaning process is time-consuming, the pressure reducing valves need to stop working, and the cost is high are solved. And the working efficiency of the pressure reducing valve is influenced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure reducing valve technical field, specifically, relate to a high accuracy filter pressure reducing valve. BACKGROUND

[0002] Pressure reducing valve, alias safety valve, is through mechanical parts, adjusts, imports pressure to the preset export pressure, and relies on medium itself energy, makes export pressure automatic maintenance stable valve.

[0003] Some filter pressure reducing valves on the market in the process of using, impurities accumulate on the filter core, will influence the flow of medium and reduce the accuracy of pressure reducing valve, therefore, usually need to clean or replace the filter core in the pressure reducing valve regularly, but need to first disassemble the pressure reducing valve when maintaining, then clean and maintain again after the pressure reducing valve assembly, lead to the whole cleaning process is time-consuming, and need to stop working of pressure reducing valve, further influence the work efficiency of pressure reducing valve.

[0004] To solve the above problems, a high accuracy filter pressure reducing valve is proposed in the application. UTILITY MODEL CONTENTS

[0005] In view of the problems in the related art, the utility model provides a high accuracy filter pressure reducing valve, which can be maintained and cleaned during operation, and can improve the accuracy and work efficiency of the pressure reducing valve.

[0006] Therefore, the specific technical scheme adopted by the utility model is as follows:

[0007] A high accuracy filter pressure reducing valve, comprising a pressure reducing valve body, a fixing seat and a cleaning assembly, the left end of the pressure reducing valve body is communicated with an air inlet, the right end of the pressure reducing valve body is communicated with an air outlet pipe, the upper end of the pressure reducing valve body is installed with an adjusting knob, the fixing seat is installed between the adjusting knob and the pressure reducing valve body, the bottom end of the pressure reducing valve body is installed with an equipment cabin, the bottom end of the equipment cabin is threadedly connected with a valve cover, a filter core device is installed in the equipment cabin, and one part of the cleaning assembly is installed on the filter core device.

[0008] The cleaning assembly comprises a main pipe, the top end of the main pipe is communicated with the bottom wall of the air outlet pipe, the bottom end of the main pipe is communicated with a branch pipe, one end of the branch pipe is communicated with one end of a first pipe body, the other end of the first pipe body is communicated with a first micro three-way magnetic valve on the filter core device, the other end of the branch pipe is communicated with one end of a second pipe body, the other end of the second pipe body is communicated with a second micro three-way magnetic valve on the filter core device, and a micro booster pump is installed on the main pipe.

[0009] As a further scheme of the utility model, the filter core device comprises a connecting end, the connecting end is communicated with the bottom end of the pressure reducing valve body, the bottom end of the connecting end is communicated with a distribution pipe, one end of the distribution pipe is communicated with one end of a first inlet pipe, and the other end of the first inlet pipe is communicated with a first filter core.

[0010] As a further scheme of the utility model, the other end of the distribution pipe is communicated with one end of a second inlet pipe, and the other end of the second inlet pipe is communicated with a second filter core.

[0011] As a further scheme of the utility model, a second micro three-way magnetic valve is installed on the second inlet pipe, and a first micro three-way magnetic valve is installed on the first inlet pipe.

[0012] As a further scheme of the utility model, a sub-controller is installed on the outer wall of the equipment cabin and is electrically connected with the first micro three-way magnetic valve and the second micro three-way magnetic valve.

[0013] As a further scheme of the utility model, a pressure instrument is installed on the front side wall of the pressure reducing valve body.

[0014] The utility model has the advantages of:

[0015] The pressure reducing valve body, the cleaning assembly, the filter core device and the sub-controller are cooperatively arranged, when in use, air medium enters the valve cover from the air inlet, then enters the connecting end through the first filter core or the second filter core, and is discharged from the air outlet pipe after passing through the pressure reducing valve body, in the process, when the first filter core needs to be cleaned, the first micro three-way magnetic valve works to connect the first pipe body and the first inlet pipe, at the moment, the working state of the second micro three-way magnetic valve on the second inlet pipe is that the second inlet pipe is communicated with the distribution pipe, and the second inlet pipe and the second pipe body are disconnected, then the gas in the air outlet pipe enters the main pipe after being pressurized by the micro booster pump, then enters the first inlet pipe after passing through the branch pipe and the first pipe body, and then enters the first filter core, so that the back flushing operation can be performed on the first filter core to complete the cleaning of the first filter core, when the second filter core needs to be cleaned, the second micro three-way magnetic valve works to connect the second pipe body and the second inlet pipe, at the moment, the first inlet pipe and the first pipe body are disconnected, then the gas in the air outlet pipe enters the main pipe after being pressurized by the micro booster pump, then enters the second inlet pipe after passing through the branch pipe and the second pipe body, and then enters the second filter core, so that the back flushing operation can be performed on the second filter core to complete the cleaning of the second filter core, so that the two filter cores can work alternately, so that the valve can be maintained and cleaned when the pressure reducing valve works, and the precision and working efficiency of the pressure reducing valve can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a high-precision filter pressure reducing valve according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the valve cover of a high-precision filter pressure reducing valve according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the cleaning assembly of a high-precision filter pressure reducing valve in use according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the cleaning assembly structure of a high-precision filter pressure reducing valve according to an embodiment of the present utility model;

[0021] Figure 5 This is a rear view structural diagram of the mounting base of a high-precision filter pressure reducing valve according to an embodiment of the present utility model.

[0022] In the picture:

[0023] 1. Pressure reducing valve body; 2. Mounting base; 3. Cleaning assembly; 4. Air inlet; 5. Air outlet pipe; 6. Adjustment knob; 7. Equipment compartment; 8. Valve cover; 9. Filter element assembly; 91. Connection end; 92. Distribution pipe; 93. First inlet pipe; 94. First filter element; 95. Second inlet pipe; 96. Second filter element; 10. Main pipe; 11. Branch pipe; 12. First pipe body; 13. First miniature three-way solenoid valve; 14. Second pipe body; 15. Second miniature three-way solenoid valve; 16. Sub-controller; 17. Pressure gauge; 18. Miniature booster pump. Detailed Implementation

[0024] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0025] According to an embodiment of the present invention, a high-precision filter pressure reducing valve is provided.

[0026] Please refer to the instruction manual appendix.Figures 1-5According to an embodiment of the present invention, a high-precision filter pressure reducing valve includes a pressure reducing valve body 1, a fixing seat 2, and a cleaning assembly 3. The left end of the pressure reducing valve body 1 is connected to an air inlet 4, and the right end of the pressure reducing valve body 1 is connected to an air outlet pipe 5. An adjustment knob 6 is installed on the upper end of the pressure reducing valve body 1, and a fixing seat 2 is installed between the adjustment knob 6 and the pressure reducing valve body 1. An equipment compartment 7 is installed at the bottom end of the pressure reducing valve body 1, and a valve cover 8 is threadedly connected to the bottom end of the equipment compartment 7. A filter element device 9 is installed inside the equipment compartment 7, and a portion of the cleaning assembly 3 is installed on the filter element device 9. The cleaning assembly 3 includes a main pipe 10, the top end of which is connected to the bottom wall of the air outlet pipe 5, and a branch pipe 11 connected to the bottom end of the main pipe 10. One end of the branch pipe 11 is connected to one end of a first pipe body 12, and the other end of the first pipe body 12 is connected to a first miniature three-way solenoid valve 13 on the filter element device 9. The other end of the branch pipe 11... One end of the filter element 9 is connected to one end of the second pipe body 14, and the other end of the second pipe body 14 is connected to the second miniature three-way solenoid valve 15 on the filter element device 9. A miniature booster pump 18 is installed on the main pipe 10. The filter element device 9 includes a connecting end 91, which is connected to the bottom end of the pressure reducing valve body 1. The bottom end of the connecting end 91 is connected to a distribution pipe 92. One end of the distribution pipe 92 is connected to one end of the first inlet pipe 93. The other end of the first inlet pipe 93 is connected to the first filter element 94. The other end of the distribution pipe 92 is connected to one end of the second inlet pipe 95. The other end of the second inlet pipe 95 is connected to the second filter element 96. A second miniature three-way solenoid valve 15 is installed on the second inlet pipe 95. A first miniature three-way solenoid valve 13 is installed on the first inlet pipe 93. A controller 16 is installed on the outer wall of the equipment compartment 7. The controller 16 is electrically connected to the first miniature three-way solenoid valve 13 and the second miniature three-way solenoid valve 15 respectively.The pressure reducing valve body 1, cleaning assembly 3, filter element device 9, and controller 16 work together. During use, air medium enters the valve cover 8 through the air inlet 4, then passes through the first filter element 94 or the second filter element 96 to the connection end 91, and then passes through the pressure reducing valve body 1 before being discharged from the outlet pipe 5. During this process, when the first filter element 94 needs to be cleaned, the first miniature three-way solenoid valve 13 operates, connecting the first pipe body 12 and the first inlet pipe 93. At this time, the second miniature three-way solenoid valve 15 on the second inlet pipe 95 is in the working state that the second inlet pipe 95 is connected to the distribution pipe 92, while the second inlet pipe 95 is disconnected from the second pipe body 14. Then, the gas in the outlet pipe 5 is pressurized by the miniature booster pump 18 and enters the main pipe 10, and then enters the branch pipe 11 and the first pipe body 12. After entering the first inlet pipe 93, the gas then enters the first filter element 94, where it can be backflushed to clean the first filter element 94. When the second filter element 96 needs to be cleaned, the second miniature three-way solenoid valve 15 operates, connecting the second pipe body 14 and the second inlet pipe 95. At this time, the first inlet pipe 93 is disconnected from the first pipe body 12. Then, the gas in the outlet pipe 5 is pressurized by the miniature booster pump 18 and enters the main pipe 10. After passing through the branch pipe 11 and the second pipe body 14, it enters the second inlet pipe 95 and then the second filter element 96, where it can be backflushed to clean the second filter element 96. Therefore, the two filter elements can work alternately, allowing the valve to be maintained and cleaned while the pressure reducing valve is in operation, thus improving the accuracy and working efficiency of the pressure reducing valve.

[0027] In one embodiment, please refer to the appendix to the specification. Figure 1 , Figure 2 and Figure 3 As a further embodiment of this utility model, a pressure gauge 17 is installed on the front side wall of the pressure reducing valve body 1. The pressure gauge 17 facilitates data observation.

[0028] Workflow: In use, first install the pressure reducing valve body 1 into the predetermined position using the fixing seat 2, and then install the air inlet 4 and air outlet pipe 5 into the predetermined positions. During use, the air medium enters the valve cover 8 through the air inlet 4, then enters the connection end 91 through the first filter element 94 or the second filter element 96, and then exits through the pressure reducing valve body 1 and the air outlet pipe 5. During this process, when the first filter element 94 needs to be cleaned, the first miniature three-way solenoid valve 13 operates, connecting the first pipe body 12 and the first inlet pipe 93. At this time, the second miniature three-way solenoid valve 15 on the second inlet pipe 95 is in the working state that the second inlet pipe 95 is connected to the distribution pipe 92, while the second inlet pipe 95 is disconnected from the second pipe body 14. Then, the gas in the air outlet pipe 5 passes through the miniature booster pump. After being pressurized by the micro booster pump 18, the gas enters the main pipe 10, then passes through the branch pipe 11 and the first pipe body 12 into the first inlet pipe 93, and then into the first filter element 94, where it can be backflushed to clean the first filter element 94. When the second filter element 96 needs to be cleaned, the second micro three-way solenoid valve 15 is activated, connecting the second pipe body 14 and the second inlet pipe 95. At this time, the first inlet pipe 93 is disconnected from the first pipe body 12. Then, the gas in the outlet pipe 5 is pressurized by the micro booster pump 18 and enters the main pipe 10, then passes through the branch pipe 11 and the second pipe body 14 into the second inlet pipe 95, and then into the second filter element 96, where it can be backflushed to clean the second filter element 96. Therefore, the two filter elements can be used alternately.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A high-precision filter pressure reducing valve, comprising a pressure reducing valve body (1), a fixing seat (2), and a cleaning assembly (3), characterized in that: The left end of the pressure reducing valve body (1) is connected to an air inlet (4), the right end of the pressure reducing valve body (1) is connected to an air outlet (5), an adjustment knob (6) is installed on the upper end of the pressure reducing valve body (1), a fixing seat (2) is installed between the adjustment knob (6) and the pressure reducing valve body (1), an equipment compartment (7) is installed at the bottom end of the pressure reducing valve body (1), a valve cover (8) is threadedly connected to the bottom end of the equipment compartment (7), a filter element device (9) is installed inside the equipment compartment (7), and a part of a cleaning component (3) is installed on the filter element device (9); The cleaning assembly (3) includes a main pipe (10), the top end of which is connected to the bottom wall of the air outlet pipe (5), the bottom end of which is connected to a branch pipe (11), one end of which is connected to one end of a first pipe body (12), the other end of which is connected to a first miniature three-way solenoid valve (13) on the filter element device (9), the other end of which is connected to one end of a second pipe body (14), the other end of which is connected to a second miniature three-way solenoid valve (15) on the filter element device (9), and a miniature booster pump (18) is installed on the main pipe (10).

2. The high-precision filter pressure reducing valve according to claim 1, characterized in that: The filter element device (9) includes a connecting end (91), which is connected to the bottom end of the pressure reducing valve body (1). The bottom end of the connecting end (91) is connected to a distribution pipe (92), one end of the distribution pipe (92) is connected to one end of a first inlet pipe (93), and the other end of the first inlet pipe (93) is connected to a first filter element (94).

3. The high-precision filter pressure reducing valve according to claim 2, characterized in that: The other end of the distribution pipe (92) is connected to one end of the second inlet pipe (95), and the other end of the second inlet pipe (95) is connected to the second filter element (96).

4. A high-precision filter pressure reducing valve according to claim 3, characterized in that: A second miniature three-way solenoid valve (15) is installed on the second inlet pipe (95), and a first miniature three-way solenoid valve (13) is installed on the first inlet pipe (93).

5. A high-precision filter pressure reducing valve according to claim 1, characterized in that: A sub-controller (16) is installed on the outer wall of the equipment compartment (7). The sub-controller (16) is electrically connected to the first miniature three-way solenoid valve (13) and the second miniature three-way solenoid valve (15).

6. A high-precision filter pressure reducing valve according to claim 1, characterized in that: A pressure gauge (17) is installed on the front side wall of the pressure reducing valve body (1).

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