CN218774571U

CN218774571U - Gas drying system for pneumatic valve

Info

Publication number: CN218774571U
Application number: CN202223248257.8U
Authority: CN
Inventors: 许海华; 杨存华; 陈俊毅
Original assignee: Shanghai Dazhong Xiangyuan Power Supply Co Ltd
Current assignee: Shanghai Dazhong Xiangyuan Power Supply Co Ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-03-31
Anticipated expiration: 2032-12-05

Abstract

The utility model relates to a gas drying system for pneumatic valves, which comprises a drier, a pneumatic valve, a plurality of pipeline filters, an outlet pipe, a plurality of parallel branches and a short-circuit valve, wherein the pneumatic valve, the pipeline filters and the outlet pipe are sequentially connected with the drier in series; the outlet pipe is provided with a branch communicated with the pneumatic valve, and the branch is used as an air supply pipeline of the pneumatic valve; the inlet end and the outlet end of each pipeline filter are respectively connected with a corresponding parallel branch, and the short-circuit valves are arranged on the corresponding parallel branches. Compared with the prior art, the utility model has the advantages that the plurality of pipeline filters are arranged in series, and each pipeline filter is provided with the short-circuit valve in parallel, so that when in use, only the short-circuit valve corresponding to the pipeline filter in use is closed, and a short-circuit branch circuit for short-circuiting the rest pipeline filters 3 is formed; so that each pipe filter works independently in turn. When the last pipeline filter is put into use, the rest pipeline filters can be replaced at one time, so that the maintenance frequency is reduced.

Description

Gas drying system for pneumatic valve

Technical Field

The utility model belongs to the technical field of pneumatic valve drying system, a pneumatic valve is with gas drying system is related to.

Background

At present, a common dryer manufacturer adopts compressed air at an outlet of the dryer as an air source of each pneumatic valve for the design of the whole device, and the structure is as described in the background art of CN 1035859A. But simultaneously, because the air taken from the air source is mixed with the drying agent alumina and iron filings particles, the air supply pressure of the pneumatic valve loop of the drier is possibly small, the electromagnetic valve can not work normally, and the pneumatic valve can not be closed or opened completely, thus increasing the air consumption of the compressed air of the drier unit, increasing the waste of the compressed air and reducing the service life of the drier. Therefore, the dust is generally filtered by a small filter (with a dust removal filtering precision of 0.01 um) and then sent to each pneumatic valve for use. However, the long-term use of the small filter can cause the accumulation of alumina debris, and then the small filter is blocked, so that each pneumatic valve cannot be normally switched, and therefore, the dryer cannot perform normal adsorption and regeneration switching, so that the dew point of compressed air cannot be ensured, and meanwhile, the labor cost caused by frequent maintenance of the small filter is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pneumatic valve is with gaseous drying system exactly.

The purpose of the utility model can be realized through the following technical scheme:

a pneumatic valve gas drying system comprises a dryer, a pneumatic valve, a plurality of pipeline filters and an outlet pipe, wherein the pneumatic valve, the pipeline filters and the outlet pipe are sequentially connected with the dryer in series; the outlet pipe is provided with a branch communicated with the pneumatic valve, and the branch is used as an air supply pipeline of the pneumatic valve;

the inlet end and the outlet end of each pipeline filter are respectively connected with a corresponding parallel branch, and the short-circuit valves are arranged on the corresponding parallel branches.

Furthermore, the pneumatic valve is arranged at the air outlet of the dryer.

Furthermore, the pneumatic valve is arranged at the air inlet of the dryer.

Furthermore, the pneumatic valves are arranged at the air inlet and the air outlet of the dryer.

Furthermore, 3-10 pipeline filters are arranged.

Furthermore, 4-8 pipeline filters are arranged.

Further, the number of the pipeline filters is 6.

Furthermore, 2-5 drying machines are connected in parallel.

Furthermore, the desiccator be equipped with 2 in parallel.

Further, the pipeline filter is a pipeline filter filled with an alumina filter element.

Compared with the prior art, the utility model has the characteristics of it is following:

the utility model sets a plurality of pipeline filters in series and sets a short-circuit valve for each pipeline filter in parallel, thereby only closing the short-circuit valve corresponding to the pipeline filter in use, and forming a short-circuit branch for short-connecting the other pipeline filters 3; so that each pipe filter works independently in turn. When the last pipeline filter is put into use, the rest pipeline filters can be replaced at one time, so that the maintenance frequency is reduced.

Drawings

FIG. 1 is a schematic view showing a configuration of a gas drying system for a pneumatic valve in an embodiment;

the symbols in the figure illustrate:

1-dryer, 2-pneumatic valve, 3-pipeline filter, 4-outlet pipe, 5-parallel branch and 6-short-circuit valve.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

The embodiment is as follows:

the gas drying system for the pneumatic valve shown in fig. 1 comprises a dryer 1, a pneumatic valve 2, a plurality of pipeline filters 3 and an outlet pipe 4, a plurality of parallel branches 5 and a short-circuit valve 6, wherein the pneumatic valve 2, the pipeline filters 3 and the outlet pipe 4 are sequentially arranged in series with the dryer 1; the outlet pipe 4 is provided with a branch communicated with the pneumatic valve 2, and the branch is used as an air supply pipeline of the pneumatic valve 2; the inlet end and the outlet end of each pipeline filter 3 are respectively connected with a corresponding parallel branch 5, and the short-circuit valve 6 is arranged on the corresponding parallel branch. Preferably, the line filter 3 is a line filter filled with an alumina filter element.

For a conventional gas drying system for pneumatic valves, in the using process, a situation that a filter element is saturated and blocked to cause frequent replacement, maintenance and replacement usually occurs, in the embodiment, a plurality of pipeline filters 3 are arranged in series, and a short-circuit valve 6 is arranged in parallel for each pipeline filter 3, so that when in use, only the short-circuit valve 6 corresponding to the pipeline filter 3 in use is closed, and a short-circuit branch for short-circuiting the rest pipeline filters 3 is formed; so that each pipe filter 3 works independently in turn. When the last pipe filter 3 is put into use, the rest of the pipe filters 3 can be replaced at one time, thereby reducing the maintenance frequency.

Meanwhile, for the pipeline filter 3 with the filter element structure, in the use process, the filter element at the air inlet is often saturated first, so that the resistance of the filter is increased, and meanwhile, the subsequent air can not fully flow into the filter, so that the adsorption degree of the filter element close to the outlet is obviously lower than that of the filter element at the air inlet. From this, this embodiment also can be under the unchangeable circumstances of total filter core quantity, be a plurality of filter cores with the monoblock filter core split to fill respectively in the pipe-line filter 3 of establishing ties the setting, thereby make every filter core utilization ratio obtain guaranteeing.

In some preferred embodiments, the pneumatic valve 2 is provided at the air outlet of the dryer 1; or the pneumatic valve 2 is arranged at the air inlet of the dryer 1; or the pneumatic valves 2 are arranged at the air inlet and the air outlet of the dryer 1.

In some preferred embodiments, the pipe filter 3 is provided with 3-10, preferably 4-8, and even more preferably 6.

In some preferred embodiments, there are 2-5 dryers 1 in parallel, preferably 2 dryers in parallel.

In some preferred embodiments, the tube filter 3 is a tube filter filled with an alumina filter element.

The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should understand that all the improvements and modifications made without departing from the scope of the present invention according to the disclosure of the present invention should be within the protection scope of the present invention.

Claims

1. The gas drying system for the pneumatic valve is characterized by comprising a dryer (1), a pneumatic valve (2), a plurality of pipeline filters (3) and an outlet pipe (4), wherein the pneumatic valve (2), the pipeline filters (3) and the outlet pipe (4) are sequentially connected with the dryer (1) in series, and a plurality of parallel branches (5) and a short-circuit valve (6) are arranged; the outlet pipe (4) is provided with a branch communicated with the pneumatic valve (2), and the branch is used as an air supply pipeline of the pneumatic valve (2);

the inlet end and the outlet end of each pipeline filter (3) are respectively connected with a corresponding parallel branch (5), and the short-circuit valves (6) are arranged on the corresponding parallel branches.

2. A gas drying system for pneumatic valves as claimed in claim 1, wherein the pneumatic valve (2) is disposed at an outlet of the dryer (1).

3. A gas drying system for pneumatic valves as claimed in claim 1, wherein the pneumatic valve (2) is provided at an air inlet of the dryer (1).

4. A gas drying system for pneumatic valves according to claim 1, wherein the pneumatic valves (2) are provided at the air inlet and the air outlet of the dryer (1).

5. A gas drying system for pneumatic valves according to claim 1, wherein the number of the duct filters (3) is 3-10.

6. A gas drying system for pneumatic valves according to claim 5, characterized in that there are 4-8 said line filters (3).

7. A gas drying system for pneumatic valves according to claim 6, wherein there are 6 said line filters (3).

8. A gas drying system for pneumatic valves according to claim 1, wherein 2-5 dryers (1) are provided in parallel.

9. A gas drying system for pneumatic valves according to claim 8, wherein there are 2 dryers (1) in parallel.

10. A gas drying system for pneumatic valves according to claim 1, wherein the duct filter (3) is a duct filter filled with an alumina filter element.