CN209885370U

CN209885370U - Filter device

Info

Publication number: CN209885370U
Application number: CN201920376458.5U
Authority: CN
Inventors: 陈厚
Original assignee: SHENZHEN PREUSST AIR COMPRESSOR Ltd
Current assignee: SHENZHEN PREUSST AIR COMPRESSOR Ltd
Priority date: 2019-03-22
Filing date: 2019-03-22
Publication date: 2020-01-03
Anticipated expiration: 2029-03-22

Abstract

The utility model relates to the technical field of medium conveying pipeline systems, in particular to a filtering device, which comprises a shell, wherein the shell comprises an inlet pipe cavity, an outlet pipe cavity and a filtering pipe cavity which are mutually communicated; the inlet pipe cavity and the outlet pipe cavity are on the same central axis, and the axial lead of the filtering pipe cavity is obliquely intersected with the axial leads of the inlet pipe cavity and the outlet pipe cavity; the opening of the filtering lumen at the junction with the inlet lumen faces the liquid flowing direction in the inlet lumen; the pressure difference detection device is fixed on the shell and used for detecting the pressure difference between the inlet pipe cavity and the outlet pipe cavity. Through setting up pressure differential detection device, avoided intraductal jam condition can't know in real time, the emergence of the negative effect that brings when the clearance is untimely, need not to dismantle simultaneously alright judge the jam condition, have simple structure, multiple functional, maintain advantages such as simple and convenient, quick judgement and maintenance.

Description

Filter device

Technical Field

The utility model belongs to the technical field of medium conveying pipe system technique and specifically relates to a filter equipment is related to.

Background

The Y-filter is also called a dirt separator or a filter valve, and is called a Y-filter because it is shaped like a Y-letter. The Y-filter is an indispensable filtering device for the pipeline system for conveying media, and is usually installed at the inlet end of a pressure reducing valve, a pressure relief valve, a constant water level valve or other equipment to remove impurities in the media so as to protect the normal use of the valves and the equipment. The Y-shaped filter has the characteristics of advanced structure, small resistance, convenient pollution discharge and the like, and the applicable medium can be water, oil, gas and the like. In the Y-shaped filter, a water passing net is generally 18-30 meshes, an air passing net is generally 10-100 meshes, and an oil passing net is generally 100-480 meshes. The filter mainly comprises a connecting pipe, a main pipe, a filter basket, a flange cover, a fastener and the like, when liquid enters the filter basket through the main pipe, solid impurity particles are blocked in the filter basket, and clean fluid passes through the filter basket and is discharged from a filter outlet. Because impurity in the fluid can take place to pile up the sediment in filter equipment, can cause the inside jam of filter equipment over time, and present filter all can not effectively show the pressure variation before and after filtering, so on-the-spot maintenance personal can't judge the jam condition inside the filter, does not know when need do and wash dredging and blocking work, influences daily maintenance, simultaneously because the clearance is untimely, easily brings negative effect.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model provides a filter equipment for solve present filter all can't effectively show the pressure variation around filtering, the inside jam condition of filter can't be judged to on-the-spot maintenance personal, does not know when and need do the washing and dredge stifled work, influences daily maintenance, simultaneously because the clearance is untimely, easily brings the problem of negative effect.

The utility model provides a technical scheme that its technical problem adopted is:

a filtration device comprising a housing comprising an inlet lumen, an outlet lumen, and a filtration lumen in communication with one another; the inlet pipe cavity and the outlet pipe cavity are on the same central axis, and the axis of the filtering pipe cavity is obliquely intersected with the axes of the inlet pipe cavity and the outlet pipe cavity; the opening of the filter lumen at its intersection with the inlet lumen is directed in the direction of liquid flow in the inlet lumen; the pressure difference detection device is fixed on the shell and used for detecting the pressure difference between the inlet pipe cavity and the outlet pipe cavity.

As a further improvement of the above technical solution, the differential pressure detecting device is a differential pressure gauge, the differential pressure gauge includes an instrument panel, a first detecting portion located on a cavity wall of the inlet lumen, and a second detecting portion located on a cavity wall of the outlet lumen, and the first detecting portion and the second detecting portion are connected to the instrument panel.

As a further improvement of the above technical solution, a filter cartridge is disposed in the filter tube cavity, the filter cartridge abuts against an inner wall of the filter tube cavity, and one end of the filter cartridge extends to a junction of the inlet tube cavity and the outlet tube cavity.

As a further improvement of the above technical solution, a water baffle is further disposed at a junction between the inlet tube cavity and the outlet tube cavity, the water baffle is connected to a partial edge of the water inlet of the filter cartridge, and the rest edge of the water inlet of the filter cartridge is hermetically connected to a tube wall of the inlet tube cavity, so that all liquid flowing in from the inlet tube cavity flows into the filter tube cavity, and then flows out of the outlet tube cavity through the filter cartridge.

As a further improvement mode of the technical scheme, the included angle between the axial lead of the filtering tube cavity and the axial lead of the inlet tube cavity is larger than 90 degrees.

As a further improvement mode of the technical scheme, one end of the filtering pipe cavity, which is far away from the inlet pipe cavity, is provided with a switch device.

As a further improvement of the above technical solution, the switching device includes a handle, a valve, a sealing sleeve and a pressing sleeve, the sealing sleeve abuts against the valve, and the pressing sleeve is located at an end of the filtering tube cavity and presses the valve.

As a further improvement mode of the technical scheme, the valve is a ball valve, a gate valve or a butterfly valve.

As a further improvement of the above technical solution, the inner and/or outer surface of the end of the inlet lumen is provided with threads, and the inner and/or outer surface of the outlet lumen is provided with threads for connecting an external pipe.

The utility model has the advantages that:

the utility model provides a filtering device, which comprises a shell, wherein the shell comprises an inlet pipe cavity, an outlet pipe cavity and a filtering pipe cavity which are communicated with each other, the inlet pipe cavity and the outlet pipe cavity are on the same central axis, and the axis of the filtering pipe cavity is inclined with the axis of the inlet pipe cavity and the axis of the outlet pipe cavity; the pressure difference detection device is fixed on the shell and used for detecting the pressure difference between the inlet pipe cavity and the outlet pipe cavity. Through setting up pressure differential detection device, avoided intraductal jam condition can't know in real time, the emergence of the negative effect that brings when the clearance is untimely, need not to dismantle simultaneously alright judge the jam condition, have simple structure, multiple functional, maintain advantages such as simple and convenient, quick judgement and maintenance.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic cross-sectional view of an embodiment of the filtering apparatus of the present invention.

Detailed Description

The conception, specific structure and technical effects of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, so as to fully understand the objects, aspects and effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the description of the upper, lower, left, right, front, rear, etc. used in the present invention is only relative to the mutual position relationship of the components of the present invention in the drawings.

Furthermore, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any combination of one or more of the associated listed items.

Referring to fig. 1, the cross-sectional view of an embodiment of the filtering device of the present invention is shown, as shown in the figure, the embodiment of the present invention is used for filtering medium in a conveying system, and comprises a straight pipe and an inclined pipe, wherein the straight pipe and the inclined pipe are combined into a tee body, the straight pipe is a main pipe line through which fluid passes, the inclined pipe is arranged in an approximately middle section of the straight pipe, and is communicated with the straight pipe, and the straight pipe is used for filtering and precipitating impurities in the fluid. The straight tube includes an inlet lumen 100 and an outlet lumen 200, the inclined tube is a filtering lumen 400, a filter cartridge 410 is provided in the filtering lumen 400, and a switch device 420 is provided at an end of the filtering lumen 400. The specific working process of the filtering device is as follows: the fluid enters from the inlet lumen 100, then all flows into the filtering lumen 400, and then enters into the outlet lumen 200 to be discharged after being filtered by the filtering cartridge 410 in the filtering lumen 400, in the process, the filtering cartridge 410 can deposit and filter the impurities in the fluid, after long-term use, the impurities can be accumulated at the filtering cartridge 410 to cause pipeline blockage, and at the moment, only the switch device 420 needs to be turned on, and under the impulsive force of the fluid, the online cleaning of the filtering cartridge 410 can be realized.

Specifically, the inlet lumen 100 and the outlet lumen 200 are on the same central axis and are an integral straight tube. The end of the inlet lumen 100 forms an opening 110 into which the fluidic mass flows. The inner surface at the opening 110 is provided with threads for connection with an external pipe; the end of the outlet lumen 200 forms an opening 210 for the fluid in the filter device to flow out to an external pipe, while the inner surface at this opening 210 is also provided with threads for connecting to an external pipe. The filtering tube cavity 400 is communicated with the inlet tube cavity 100 and the outlet tube cavity 200, the axial line of the filtering tube cavity 400 is mutually crossed with the axial lines of the inlet tube cavity 100 and the outlet tube cavity 200 at an angle, preferably, the included angle between the axial line of the filtering tube cavity 400 and the axial line of the inlet tube cavity 100 is larger than 90 degrees, so that the opening of the filtering tube cavity 400 connected with the inlet tube cavity is obliquely opposite to the inlet tube cavity and corresponds to the inflow direction of fluid, and the flowing fluid is conveniently received.

It will be appreciated that the threads at one end of the inlet and outlet lumens may also be provided on the outer surface of the body.

The filter cartridge 410 is arranged in the filter tube cavity 400, the filter cartridge 410 is abutted against the inner wall of the filter tube cavity 400, one end of the filter cartridge 410 extends to the junction of the inlet tube cavity 100 and the outlet tube cavity 200 from the inside of the filter tube cavity 400, one part of the edge of the water inlet 411 of the filter cartridge 410 is in sealing connection with the tube wall of the straight tube where the inlet tube cavity 100 is located, the rest part of the edge of the water inlet 411 of the filter cartridge 410 is in sealing connection with the baffle plate located at the junction, one part of the baffle plate is in sealing connection with the tube wall of the straight tube, and the rest part of the water inlet 411 of the filter cartridge 410 is connected with the upper edge of the water inlet 411, so that a. The water inlet 411 of the filter cartridge 410 faces the inflow direction of the fluid, the fluid is blocked by the baffle plate, so that the fluid completely flows into the filter cartridge 410, and then the fluid flows out from the filter cartridge 410 at the junction to the outlet tube cavity 200, namely, the iron rust, sand grains, a small amount of solid particles in liquid and the like in the sewage are filtered to protect fittings on the equipment pipeline from being abraded and blocked, and the normal operation of the equipment is protected.

The end of the filtering lumen 400 far from the inlet lumen 100 is provided with a switch device 420 for closing or opening the opening of the filtering lumen 400, specifically, the switch device 420 comprises a valve 421, a handle 422, a sealing sleeve 423 and a pressing pipe sleeve 424, the valve 421 is used for closing the opening of the filtering lumen 400, the handle 422 is connected with the valve 421, and an operator can pull the valve 421 to control the opening and closing of the valve 421; the sealing sleeve 423 is arranged between the filter screen and the valve 421 and is abutted against the edge of the valve 421 to seal the gap between the valve 421 and the filter tube cavity 400 and prevent the leakage of the fluid; the compressing pipe sleeve 424 compresses and fixes the valve 421, and the inner surface of the end of the compressing pipe sleeve is provided with threads, so that the valve is convenient to be externally connected with a pipeline. Preferably, the valve 421 is one of a ball valve, a gate valve, or a butterfly valve. By arranging the switch device 420 at the end part of the filtering tube cavity 400, when the filtering tube 410 is blocked due to accumulation of impurities, maintenance personnel only need to turn on the switch device 420 to discharge sewage, the whole cleaning process only needs tens of seconds, and after the sewage discharge action is finished, the on-line cleaning process can be finished only by turning off the switch device 420, so that a series of actions such as sewage discharge, filter screen cleaning and closing can be directly carried out without any tool and disassembly work and without turning off a main valve at a water inlet end, and the cleaning device is convenient and quick; especially when chilly winter, traditional filter equipment needs the manual filter screen of dismantling of operating personnel, then uses the cold water to wash, and the product use is experienced not well, the embodiment of the utility model provides an in filter equipment only need operating switch device 420 can accomplish once online cleaning, the product use is experienced well.

As the fluid is filtered by the filter cartridge 410, impurities in the fluid may accumulate on the filter screen and may clog the interior of the filter over time. Because the pressure change around present filter all can't the effective demonstration filters, so the inside jam condition of filter can't be judged to on-the-spot maintenance personal, does not know when and need do the washing and dredge stifled work, the embodiment of the utility model provides an in filter equipment through installing the differential pressure table additional, the pressure difference around the real-time feedback filter screen can let operating personnel directly perceivedly master the inside jam condition of filter equipment, implements in good time and washs blowdown work. Specifically, the differential pressure detecting device 300 is disposed on the outer surface of the straight tube where the inlet lumen 100 and the outlet lumen 200 are located, preferably, the differential pressure detecting device 300 is a differential pressure gauge, the differential pressure gauge includes an instrument panel 310 for displaying specific differential pressure values, a first detecting portion 320 located on the cavity wall of the inlet lumen 100 and a second detecting portion 330 located on the cavity wall of the outlet lumen 200, the first detecting portion 320 and the second detecting portion 330 respectively detect the pressure in the inlet lumen 100 and the outlet lumen 200, i.e., the pressure before and after the filter cartridge 410 is sensed, and then a signal is fed back to the differential pressure gauge to take a measurement reading, when the pressure values of the first and second sensing parts 320 and 330 are the same or the pressure difference value is within a predetermined range, the inner filter cartridge 410 of the filter device has no blockage or light blockage phenomenon, and the medium in the pipeline normally flows without any operation; when the pressure values of the first detection part 320 and the second detection part 330 are different or the differential pressure value exceeds a specified range, the change of the pointer on the differential pressure gauge can be displayed, which indicates that the internal filter cylinder 410 of the filter device is blocked (the larger the differential pressure value is, the more serious the blockage is), a maintainer needs to open the switch device 420 on the filter tube cavity 400 for sewage disposal, and after the sewage disposal action is completed, only the ball valve switch needs to be placed in a closed position to complete the one-time online cleaning process. Traditional Y shape filter compares, show through having increased the differential pressure table, make on-the-spot maintenance personnel need not regularly fix a point again and patrol, record and washing, can know the operating condition of the inside medium of pipeline directly perceivedly with the help of the differential pressure table, when the differential pressure table shows to reach certain differential pressure value, open switching device 420 and wash can, avoided intraductal jam condition can't know in real time, the emergence of the negative effect that brings when the clearance is untimely, need not to dismantle simultaneously alright judge the jam condition, and has simple structure, multiple functional, maintain simple and convenient, advantages such as quick judgement and maintenance.

While the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A filter device comprising a housing, said housing comprising an inlet lumen, an outlet lumen and a filter lumen in communication with one another; the inlet pipe cavity and the outlet pipe cavity are on the same central axis, and the axis of the filtering pipe cavity is obliquely intersected with the axes of the inlet pipe cavity and the outlet pipe cavity; the opening of the filter lumen at its intersection with the inlet lumen is directed in the direction of liquid flow in the inlet lumen; the pressure difference detection device is fixed on the shell and used for detecting the pressure difference between the inlet pipe cavity and the outlet pipe cavity.

2. The filtration device of claim 1, wherein the differential pressure detection device is a differential pressure gauge comprising a gauge panel, a first detection portion located on a wall of the inlet lumen, and a second detection portion located on a wall of the outlet lumen, the first and second detection portions being connected to the gauge panel.

3. The filtration device of claim 1, wherein a filter cartridge is disposed in the filter tube cavity, the filter cartridge abuts against an inner wall of the filter tube cavity, and one end of the filter cartridge extends to a junction of the inlet tube cavity and the outlet tube cavity.

4. The filtering device according to claim 3, wherein a water baffle is further disposed at a junction between the inlet tube cavity and the outlet tube cavity, the water baffle is connected to a part of an edge of the water inlet of the filter cartridge, and the rest of the edge of the water inlet of the filter cartridge is hermetically connected to a tube wall of the inlet tube cavity, so that all liquid flowing in from the inlet tube cavity flows into the filter tube cavity and then flows out of the outlet tube cavity through the filter cartridge.

5. The filtration device of claim 1, wherein an axis of the filtration lumen is at an angle greater than 90 ° to an axis of the inlet lumen.

6. The filtration device of claim 1, wherein an end of the filtration lumen distal from the inlet lumen is provided with a switch device.

7. The filtration device of claim 6, wherein the switch device comprises a handle, a valve, a sealing sleeve, and a compression sleeve, wherein the sealing sleeve abuts against the valve, and the compression sleeve is located at an end of the filtration tube cavity and compresses the valve.

8. A filter device as claimed in claim 7, wherein the valve is a ball valve, gate valve or butterfly valve.

9. The filtration device of claim 1, wherein an inner and/or outer surface of the end of the inlet lumen is threaded and an inner and/or outer surface of the outlet lumen is threaded for connection to an external conduit.