CN209952468U

CN209952468U - Simple gas filter

Info

Publication number: CN209952468U
Application number: CN201920697502.2U
Authority: CN
Inventors: 袁文波; 梁兆洪
Original assignee: FOSHAN HUALIANG-BUNSEN GAS EQUIPMENT Co Ltd
Current assignee: FOSHAN HUALIANG-BUNSEN GAS EQUIPMENT Co Ltd
Priority date: 2019-05-16
Filing date: 2019-05-16
Publication date: 2020-01-17
Anticipated expiration: 2029-05-16

Abstract

The utility model relates to a simple gas filter, which comprises a cylinder body, a filter element, a cover plate, a fixed rod, a fixed plate and a fixed nut; the cylinder body is provided with a blow-off pipe, an air inlet pipe and an air outlet pipe, and the end part of the end of the air outlet pipe extending into the inner cavity of the cylinder body is connected with a vertical pipe; the bottom end of the fixed rod penetrates through the vertical pipe to be fixedly connected with the air outlet pipe; the filter element is in an inverted frustum cylindrical structure, the filter element is sleeved on the fixed rod, and the lower end surface of the filter element is embedded into an embedded concave position arranged on the top surface of the vertical pipe; the fixed plate is sleeved on the fixed rod through the through hole of the fixed plate, and the nesting concave position arranged on the fixed plate is nested with the upper end surface of the filter element; the fixing nut is screwed on the upper part of the fixing rod, so that the filter element is clamped and fixed by the fixing plate and the top surface of the vertical pipe; the cover plate is covered on the opening of the cylinder body and is fixedly connected with the cylinder body. The utility model has the characteristics of cost of maintenance is low, adopt to strike the stack shell and come to clear up the filter core effectual, but greatly reduced equipment maintenance personnel's work intensity of labour etc.

Description

Simple gas filter

Technical Field

The utility model relates to a gas transmission and distribution equipment technical field, especially a simple type gas filter.

Background

The gas filter is widely used in the gas fields of metallurgy, chemical industry, petroleum, paper making, medicine, food, mining, electric power, city, family and the like. The fuel gas filter is an indispensable device on a medium conveying pipeline, is usually arranged at the inlet end of a pressure reducing valve, a pressure relief valve, a positioning valve or other equipment, and is used for eliminating impurities in fuel gas so as to protect the normal use of the valve and the equipment and reduce the maintenance cost of the equipment. However, during the use process, the granular impurities in the fuel gas can be blocked by the filter element in the fuel gas filter, and the impurities can be attached to the filter element, so that the speed of the fuel gas passing through the pipeline is slowed down after the fuel gas filter is used for a long time. Equipment maintenance personnel are therefore required to clean or replace the filter cartridge at intervals.

At present, when equipment maintenance personnel remove impurities from a filter element, a copper hammer is mostly adopted to knock a cylinder body to enable a stainless steel filter element to vibrate so as to shake the impurities, if the speed of fuel gas passing through a pipeline is not changed much after knocking, the filter element is taken out in a mode of disassembling a filter to be cleaned or replaced; because the filter core among the current gas filter is the barrel structure of cylinder form mostly, adopt the gas filter of this structure filter core, there are following not enough when adopting the mode of strikeing to clear up the filter core: firstly, impurities on the filter element may fall into the gas outlet pipe in the vibration process, and finally the impurities flow to the valve of the gas outlet pipe, so that the valve is damaged, and the maintenance cost is increased; secondly, the impurity can fall down along the filter core in the vibrations in-process, makes impurity can pile up in the lower part of filter core for the clearance number of times has been more, and the mode clearance effect of coming impurity on the filter core through strikeing can be progressively worse, needs the gas filter of equipment maintenance personnel to take out at last and just can the clean up, has increased equipment maintenance personnel's work intensity of labour.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple type gas filter, this simple type gas filter have simple structure, reasonable in design, cost of maintenance are low, adopt to strike the stack shell and come to clear up the filter core effectual, but advantages such as greatly reduced equipment maintenance personnel's work intensity of labour.

The technical scheme of the utility model is realized like this: a simple gas filter is characterized by comprising a cylinder body, a filter element, a cover plate, a fixed rod, a fixed plate and a fixed nut; wherein: the top surface of the cylinder body is provided with a cylinder opening, the bottom of the inner cavity of the cylinder body is an impurity groove, the bottom of the cylinder body is provided with a sewage discharge pipe communicated with the bottom of the impurity groove, the left side of the cylinder body is provided with an air inlet pipe communicated with the inner cavity of the cylinder body, the right side of the cylinder body is provided with an air outlet pipe, one end of the air outlet pipe extends into the inner cavity of the cylinder body, the end part of the end of the air outlet pipe extending into the inner cavity of the cylinder body is connected with a vertical pipe, the bottom end of the vertical pipe is communicated with the air outlet pipe, and the top surface of the vertical pipe is provided with an embedded concave position; the bottom end of the fixed rod penetrates through the vertical pipe to be fixedly connected with the air outlet pipe, and an external thread section is formed at the upper part of the fixed rod; the filter element is a stainless steel filter element, the filter element is an inverted circular truncated cone-shaped cylindrical structure with small radius of the lower end surface and large radius of the upper end surface, an included angle A between a bus of the filter element and the lower end surface of the filter element is in a range of 84-88 degrees, the filter element is sleeved on the fixed rod, and the lower end surface of the filter element is embedded into the embedding concave position of the vertical pipe; the fixed plate is provided with a through hole penetrating through the top surface and the bottom surface of the fixed plate, the bottom surface of the fixed plate is provided with a ring-shaped nesting concave position, the fixed plate is sleeved on the fixed rod through the through hole of the fixed plate, and the nesting concave position of the fixed plate is nested with the upper end surface of the filter element; the fixed nut is screwed on the external thread section at the upper part of the fixed rod so as to clamp and fix the filter element between the fixed plate and the top surface of the vertical pipe; the cover plate is covered on the cylinder opening of the cylinder body, a sealing gasket is arranged between the cover plate and the end surface of the cylinder opening of the cylinder body, and the cover plate and the cylinder body are detachably and fixedly connected together.

Further, the groove bottom of the impurity groove is an arc surface.

Furthermore, a convex ring part is formed on the barrel body along the edge of the barrel opening, and the cover plate is connected with the convex ring part of the barrel body through a plurality of fixing mechanisms; each fixing mechanism comprises a stud, an upper nut and a lower nut, a plurality of upper mounting holes which are uniformly distributed around the axis of the upper mounting hole are formed on the cover plate, and a plurality of lower mounting holes which are uniformly distributed around the axis of the lower mounting hole are formed on the convex ring part of the cylinder body; the screw bolt is arranged in an upper mounting hole of the cover plate and a lower mounting hole of the cylinder body in a penetrating mode, the upper nut is screwed on the upper portion of the screw bolt, and the lower nut is screwed on the lower portion of the screw bolt, so that the cover plate and the convex ring portion of the cylinder body are clamped and fixed through the upper nut and the lower nut.

Still further, the utility model also comprises a lifting mechanism, wherein the lifting mechanism comprises a hand wheel, a positioning cylinder and a screw rod; a threaded through hole is formed in the positioning cylinder, and the positioning cylinder is arranged on the screw rod in a penetrating manner through the threaded through hole; the top end of the screw rod is connected with the hand wheel, and the bottom end of the screw rod is connected with the cover plate.

The utility model has the advantages that: the utility model designs the filter element into an inverted round platform-shaped cylindrical structure with small radius of the lower end surface and large radius of the upper end surface, and the included angle A between the generating line of the filter element and the lower end surface is in the range of 84-88 degrees, the utility model adopts the filter element with the outer peripheral surface being the inclined surface, when the filter element is cleaned by adopting the knocking mode, the impurity on the filter core can drop in the impurity groove through its self action of gravity under the vibrations effect, can not pile up in the lower part of filter core, and impurity can not drop into the outlet duct through vibrations yet, makes impurity can not be sent to the valve of being connected with the outlet duct in, can not lead to the valve to damage, makes the utility model has the advantages of simple structure, reasonable in design, cost of maintenance are low, adopt to strike the stack shell and come to clear up the filter core effectually, but greatly reduced equipment maintenance personnel's work intensity of labour.

Drawings

Fig. 1 is a schematic top view of the present embodiment.

Fig. 2 is a partial sectional view of fig. 1 taken along the direction a-a.

Fig. 3 is an enlarged schematic structural view of a portion B in fig. 2.

Fig. 4 is an enlarged schematic structural view of a portion C in fig. 2.

Fig. 5 is an enlarged schematic view of a portion D in fig. 2.

Description of reference numerals: 1-a barrel body; 11-impurity tank; 12-a sewage draining pipe; 121-vertical pipe section; 122-horizontal tube section; 13-an air inlet pipe; 14-an air outlet pipe; 15-a vertical tube; 151-embedding concave position; 123. 131, 141-flange; 16-a collar portion; 161-lower mounting holes; 17-a hoisting ring; 2-a filter element; 3-cover plate; 31-upper mounting holes; 4-fixing the rod; 41-external thread section; 5, fixing a plate; 51-via holes; 52-nested concave position; 6-fixing the nut; 7-a sealing gasket; 8-a fixing mechanism; 81-stud; 82-upper nut; 83-lower nut; 9-a lifting mechanism; 91-hand wheel; 92-a positioning cylinder; 93-screw rod; 10-a support; 20-reinforcing bar.

Detailed Description

As shown in fig. 1, 2, 3, 4, and 5, the simple gas filter of the present embodiment includes a cylinder body 1, a filter element 2, a cover plate 3, a fixing rod 4, a fixing plate 5, and a fixing nut 6; wherein: the top surface of the cylinder body 1 is provided with a cylinder opening, the bottom of the inner cavity of the cylinder body 1 is provided with an impurity groove 11, the bottom of the cylinder body 1 is provided with a sewage discharge pipe 12 communicated with the bottom of the impurity groove 11, the left side of the cylinder body 1 is provided with an air inlet pipe 13 communicated with the inner cavity of the cylinder body 1, the right side of the cylinder body 1 is provided with an air outlet pipe 14, one end of the air outlet pipe 14 extends into the inner cavity of the cylinder body 1, the end part of the end of the air outlet pipe 14 extending into the inner cavity of the cylinder body 1 is connected with a vertical pipe 15, the bottom end of the vertical pipe 15 is communicated with the air outlet pipe 14, particularly, the vertical pipe 15 and the air outlet pipe 14 are welded together after being subjected to corner cutting, so that the vertical pipe 15 and the air outlet pipe 14 are connected into 90 degrees, and; the bottom end of the fixed rod 4 passes through the vertical pipe 15 and is fixedly connected with the air outlet pipe 14, the axis of the fixed rod 4 and the axis of the vertical pipe 15 are in the same straight line, and an external thread section 41 is formed at the upper part of the fixed rod 4; the filter element 2 is a stainless steel filter element, the filter element 2 is an inverted circular truncated cone-shaped cylindrical structure with a small radius of the lower end surface and a large radius of the upper end surface, an included angle A between a bus of the filter element 2 and the lower end surface of the filter element is 86 degrees, the filter element 2 is sleeved on the fixed rod 4, and the lower end surface of the filter element 2 is embedded into the embedded concave position 151 of the vertical pipe 15; the fixed plate 5 is provided with a through hole 51 penetrating through the top surface and the bottom surface of the fixed plate 5, the bottom surface of the fixed plate 5 is provided with a ring-shaped nesting concave position 52, the fixed plate 5 is sleeved on the fixed rod 4 through the through hole 51, and the nesting concave position 52 of the fixed plate 5 is nested with the upper end surface of the filter element 2; the fixing nut 6 is screwed on the external thread section 41 at the upper part of the fixing rod 4 so as to clamp and fix the filter element 2 between the fixing plate 5 and the top surface of the vertical pipe 15; the cover plate 3 is covered on the cylinder opening of the cylinder body 1, a sealing gasket 7 is arranged between the cover plate 3 and the cylinder opening end surface of the cylinder body 1, the sealing gasket 7 is a metal wave tooth composite gasket, and the cover plate 3 and the cylinder body 1 are fixedly connected together in a detachable mode. This simple type gas filter is through having adopted this kind of peripheral face to be the filter core 2 of slope form face, make this simple type gas filter when adopting the mode of striking to clear up filter core 2, the impurity on the filter core 2 can drop in impurity groove 11 through its self action of gravity under the vibrations effect, can not pile up in the lower part of filter core 2, impurity also can not drop into outlet duct 14 through vibrations, make impurity can not sent to in the valve of being connected with outlet duct 14, can not lead to the valve to damage, make this simple type gas filter have simple structure, and reasonable design, the maintenance cost is low, the adoption strikes the effectual of clearing up filter core 2 to stack shell 1, but advantages such as greatly reduced equipment maintainer's work intensity of labour.

In order to collect impurities in the impurity groove 11, as shown in fig. 2, the groove bottom of the impurity groove 11 is a circular arc surface. The design can collect the impurities falling from the filter element 2, and the impurities are conveniently discharged from the sewage discharge pipe 12.

In order to make the connection structure between the cylinder 1 and the cover plate 3 more reasonable, as shown in fig. 2 and 5, a convex ring part 16 is further formed on the cylinder 1 along the edge of the cylinder mouth, and the cover plate 3 is connected with the convex ring part 16 of the cylinder 1 through a plurality of fixing mechanisms 8; each fixing mechanism 8 comprises a stud 81, an upper nut 82 and a lower nut 83 respectively, a plurality of upper mounting holes 31 which are uniformly distributed around the axis of the cover plate 3 are formed on the cover plate, and a plurality of lower mounting holes 161 which are uniformly distributed around the axis of the convex ring part 16 of the cylinder body 1 are formed on the convex ring part; the studs 81 are inserted into the upper mounting holes 31 of the cover plate 3 and the lower mounting holes 161 of the cylinder body 1, the upper nuts 82 are screwed on the upper portions of the studs 81, and the lower nuts 83 are screwed on the lower portions of the studs 81, so that the cover plate 3 and the convex ring portion 16 of the cylinder body 1 are clamped and fixed through the upper nuts 82 and the lower nuts 83.

In order to facilitate the cover plate 3 to be removed from the barrel body 1, as shown in fig. 2, the simple gas filter further comprises a lifting mechanism 9, wherein the lifting mechanism 9 comprises a hand wheel 91, a positioning barrel 92 and a screw rod 93; a threaded through hole is formed in the positioning cylinder 92, and the positioning cylinder 92 is arranged on the screw rod 93 through the threaded through hole; the top end of the screw 93 is connected with the hand wheel 91, and the bottom end of the screw 93 is connected with the cover plate 3. As shown in fig. 2 and 5, when in use, after the upper nut 82 or the lower nut 83 which is fixedly connected with the cover plate 3 and the cylinder body 1 is disassembled by an equipment maintenance person, the positioning cylinder 92 is positioned by a positioning machine, and the cover plate 3 is lifted by rotating the hand wheel 91, so that the equipment maintenance person can detect the inner cavity of the cylinder body 1.

In order to fix the simple gas filter with the prying seat conveniently, as shown in fig. 2, the simple gas filter further comprises a support 10, and the top of the support 10 is connected with the cylinder body 1.

In order to facilitate the connection of the air inlet pipe 13, the air outlet pipe 14 and the sewage draining pipe 12 with other pipelines in practical application, as shown in fig. 2, the air inlet end of the air inlet pipe 13, the air outlet end of the air outlet pipe 14 and the sewage draining outlet end of the sewage draining pipe 12 are respectively connected with

flanges

131, 141 and 123 for connection.

For the convenience of assembling the simple gas filter and the pry seat in the transportation process, as shown in fig. 1 and 2, 2 symmetrically-arranged hanging rings 17 are arranged on the outer wall surface of the cylinder body 1.

In order to enable the connection between the drain pipe 12 of the simple gas filter and the barrel body 1 to be firmer, as shown in fig. 2, the simple gas filter further comprises a reinforcing rod 20, the drain pipe 12 comprises a vertical pipe section 121 and a horizontal pipe section 122, the horizontal pipe section 122 and the vertical pipe section 121 are connected to form an L-shaped structure, and the top end of the vertical pipe section 121 is communicated with the inner cavity of the barrel body 1; one end of the reinforcing rod 20 is fixedly connected with the barrel body 1, and the other end of the reinforcing rod 20 is fixedly connected with the horizontal pipe section 122 of the sewage draining pipe 12.

Claims

1. A simple gas filter is characterized in that: comprises a cylinder body, a filter element, a cover plate, a fixed rod, a fixed plate and a fixed nut; wherein:

the top surface of the cylinder body is provided with a cylinder opening, the bottom of the inner cavity of the cylinder body is an impurity groove, the bottom of the cylinder body is provided with a sewage discharge pipe communicated with the bottom of the impurity groove, the left side of the cylinder body is provided with an air inlet pipe communicated with the inner cavity of the cylinder body, the right side of the cylinder body is provided with an air outlet pipe, one end of the air outlet pipe extends into the inner cavity of the cylinder body, the end part of the end of the air outlet pipe extending into the inner cavity of the cylinder body is connected with a vertical pipe, the bottom end of the vertical pipe is communicated with the air outlet pipe, and the top surface of the vertical pipe is provided with an embedded concave position;

the bottom end of the fixed rod penetrates through the vertical pipe to be fixedly connected with the air outlet pipe, and an external thread section is formed at the upper part of the fixed rod;

the filter element is a stainless steel filter element, the filter element is an inverted circular truncated cone-shaped cylindrical structure with small radius of the lower end surface and large radius of the upper end surface, an included angle A between a bus of the filter element and the lower end surface of the filter element is in a range of 84-88 degrees, the filter element is sleeved on the fixed rod, and the lower end surface of the filter element is embedded into the embedding concave position of the vertical pipe;

the fixed plate is provided with a through hole penetrating through the top surface and the bottom surface of the fixed plate, the bottom surface of the fixed plate is provided with a ring-shaped nesting concave position, the fixed plate is sleeved on the fixed rod through the through hole of the fixed plate, and the nesting concave position of the fixed plate is nested with the upper end surface of the filter element;

the fixed nut is screwed on the external thread section at the upper part of the fixed rod so as to clamp and fix the filter element between the fixed plate and the top surface of the vertical pipe;

the cover plate is covered on the cylinder opening of the cylinder body, a sealing gasket is arranged between the cover plate and the end surface of the cylinder opening of the cylinder body, and the cover plate and the cylinder body are detachably and fixedly connected together.

2. A fuel gas filter as claimed in claim 1, wherein: the bottom of the impurity groove is an arc surface.

3. A fuel gas filter as claimed in claim 1, wherein: the cylinder body is also provided with a convex ring part along the edge of the cylinder opening, and the cover plate is connected with the convex ring part of the cylinder body through a plurality of fixing mechanisms; each fixing mechanism comprises a stud, an upper nut and a lower nut, a plurality of upper mounting holes which are uniformly distributed around the axis of the upper mounting hole are formed on the cover plate, and a plurality of lower mounting holes which are uniformly distributed around the axis of the lower mounting hole are formed on the convex ring part of the cylinder body; the screw bolt is arranged in an upper mounting hole of the cover plate and a lower mounting hole of the cylinder body in a penetrating mode, the upper nut is screwed on the upper portion of the screw bolt, and the lower nut is screwed on the lower portion of the screw bolt, so that the cover plate and the convex ring portion of the cylinder body are clamped and fixed through the upper nut and the lower nut.

4. A fuel gas filter as claimed in claim 1 or 3, wherein: the lifting mechanism comprises a hand wheel, a positioning cylinder and a screw rod; a threaded through hole is formed in the positioning cylinder, and the positioning cylinder is arranged on the screw rod in a penetrating manner through the threaded through hole; the top end of the screw rod is connected with the hand wheel, and the bottom end of the screw rod is connected with the cover plate.

5. A fuel gas filter as claimed in claim 1, wherein: the cylinder body is connected with the top of the support.

6. A fuel gas filter as claimed in claim 1, wherein: the air inlet end of the air inlet pipe, the air outlet end of the air outlet pipe and the sewage discharge outlet end of the sewage discharge pipe are respectively connected with flanges for connection.

7. A fuel gas filter as claimed in claim 1, wherein: the outer wall surface of the barrel body is provided with 2 hanging rings which are symmetrically arranged.

8. A fuel gas filter as claimed in claim 1, wherein: the blow-off pipe comprises a vertical pipe section and a horizontal pipe section, the horizontal pipe section and the vertical pipe section are connected into an L-shaped structure, and the top end of the vertical pipe section is communicated with the inner cavity of the barrel body; one end of the reinforcing rod is fixedly connected with the cylinder body, and the other end of the reinforcing rod is fixedly connected with the transverse pipe section of the blow-off pipe.