CN214466276U

CN214466276U - Exhaust deslagging valve

Info

Publication number: CN214466276U
Application number: CN202120669359.3U
Authority: CN
Inventors: 李家德; 毛福财
Original assignee: Taizhou Aidi Xishengda Tube Co ltd
Current assignee: Taizhou Aidi Xishengda Tube Co ltd
Priority date: 2021-04-01
Filing date: 2021-04-01
Publication date: 2021-10-22
Anticipated expiration: 2031-04-01

Abstract

The utility model provides an exhaust slagging-off valve belongs to valve manufacturing technical field. It has solved the current performance that exhaust slagging-off valve filters tiny impurity in aquatic relatively poor, uses inconvenient problem. The exhaust deslagging valve comprises a valve body and a blowdown valve, wherein the valve body is used for being connected to the lower end of an exhaust valve, the blowdown valve is arranged at the lower end of the valve body, a water inlet pipe connector and a water outlet pipe connector are arranged on the side portion of the valve body, a filter screen is arranged in the valve body and located between the water inlet pipe connector and the water outlet pipe connector, a blowdown cylinder is arranged between the valve body and the blowdown valve, the upper end of the blowdown cylinder is connected with the valve body, the lower end of the blowdown cylinder is connected with the blowdown valve, and a reverse return device for preventing filter particles from flowing back to the water outlet pipe connector is arranged in the blowdown cylinder. The utility model discloses can prevent effectively that the contrary refluence of tiny impurity in aquatic from connecting to the outlet pipe, structural stability is high.

Description

Exhaust deslagging valve

Technical Field

The utility model belongs to the technical field of the valve is made, a exhaust slagging-off valve is related to.

Background

The exhaust valve is applied to exhaust of pipelines such as an independent heating system, a central heating system, a heating boiler, a central air conditioner, a floor heating system, a solar heating system and the like.

For example, chinese patent literature discloses a microbubble exhaust valve [ application No.: 201320110344.9, respectively; authorization notice number: CN203215038U ], it includes that inside is the valve body of cavity, the lateral part of valve body is equipped with into water end and goes out the water end, be equipped with the slider that can reciprocate along the valve body in the valve body, the upper end of valve body is equipped with exhaust passage and can be with the exhaust needle of exhaust passage shutoff, the slider can drive the reciprocal translation of exhaust needle, still be equipped with the spring between exhaust needle and the valve body, exhaust needle has the trend that can be with the exhaust passage shutoff all the time under the effect of spring elasticity, still be equipped with a plurality of filter screen and filter screen all are located between water end and the play water end in the valve body intracavity.

In the micro-bubble exhaust valve, the valve body is provided with the filter screen, and the filter holes of the filter screen are larger than the fine impurities in the water, so that the fine impurities in the water enter the filter screen and are discharged through the drain valve; however, due to the space limitation in the valve body, the valve body is not provided with a reverse return gear structure for preventing the fine impurities in the water from reversely returning to the water outlet end from the filtering hole newly passing through the filtering net, so that the performance of filtering the fine impurities in the water is poor, and the use is inconvenient.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, can prevent effectively that the contrary refluence of tiny impurity in aquatic from to the exhaust slagging-off valve that connects to the outlet pipe.

The purpose of the utility model can be realized by the following technical proposal: an exhaust deslagging valve comprises a valve body and a blowdown valve, wherein the valve body is used for being connected to the lower end of an exhaust valve, the blowdown valve is arranged at the lower end of the valve body, a water inlet pipe connector and a water outlet pipe connector are arranged on the side portion of the valve body, a filter screen is arranged in the valve body and is located between the water inlet pipe connector and the water outlet pipe connector, and the exhaust deslagging valve is characterized in that a blowdown cylinder is arranged between the valve body and the blowdown valve, the upper end of the blowdown cylinder is connected with the valve body, the lower end of the blowdown cylinder is connected with the blowdown valve, and a reverse return device for preventing filter particles from flowing back to the water outlet pipe connector is arranged in the blowdown cylinder; the reverse return device comprises a funnel pipe fitting, the funnel pipe fitting is coaxially assembled in the sewage discharge barrel in a clearance fit mode, the upper end of the funnel pipe fitting is adjacent to the lower port of the filter screen, and the lower end of the funnel pipe fitting extends to the sewage discharge valve.

The exhaust deslagging valve is mainly characterized in that a blowdown cylinder is arranged between a valve body and a blowdown valve, the blowdown cylinder is used for a transition piece for discharging fine impurities in water through the blowdown valve, a reverse returning device is arranged in the blowdown cylinder, and the reverse returning device is used for blocking the fine impurities in the water, so that the fine impurities in the water can be effectively prevented from flowing to a water outlet pipe joint under the traction of water flow, the structure is stable, the performance of filtering the fine impurities in the water and discharging the fine impurities in the water out of the valve body is good, and the use is inconvenient; in practical application, the upper end of the valve body and the lower end of the exhaust valve are assembled and connected, which belongs to the prior art and is not described in detail herein; the blowoff valve adopts the ball valve of prior art, directly buys the use in the market.

In foretell exhaust deslagging valve, the upper end of funnel pipe fitting be provided with funnel portion, the lower extreme of funnel pipe fitting be provided with draft tube portion, this funnel portion and draft tube portion link to each other as an organic whole structure, the last port of funnel portion of funnel pipe fitting and the lower port of filter screen relative, the lower port of draft tube portion of funnel pipe fitting relative with the end of intaking of blowoff valve. The inner wall of the funnel part of the funnel pipe fitting is used for guiding the flow direction of fine impurities in water; the outer wall of the funnel part of the funnel pipe fitting is used for blocking the position of small impurities in water flowing back to the water outlet pipe joint, so that the small impurities in the water flow to the drain valve along the outer wall of the funnel part of the funnel pipe fitting, and the structure is stable.

In the exhaust deslagging valve, the upper end of the guide pipe part of the funnel pipe fitting is provided with the expanding installation ring, the outer edge of the lower end of the expanding installation ring is provided with an annular assembling position, the inner wall of the sewage discharging cylinder is provided with the inner convex ring, and the funnel pipe fitting is assembled on the inner convex ring of the sewage discharging cylinder through the annular assembling position clamping position of the expanding installation ring. The purpose that sets up like this is when the funnel pipe fitting is when blowdown section of thick bamboo is built-in, causes funnel pipe fitting, blowdown section of thick bamboo to remain same axial distribution throughout, can effectively prevent funnel pipe fitting radial tilt float in blowdown section of thick bamboo through the annular assembly position of hole enlargement collar and the axial screens assembly of interior convex ring, and structural stability is good.

In the exhaust deslagging valve, the diameter-expanding mounting ring is horizontally distributed in the radial direction of the guide pipe part of the funnel pipe fitting, a radial connecting rib is arranged between the diameter-expanding mounting ring and the guide pipe part of the funnel pipe fitting, and the diameter-expanding mounting ring and the guide pipe part of the funnel pipe fitting are connected into a whole through the radial connecting rib. The purpose of setting up like this is to guarantee the mechanical strength of hole enlargement collar assembly, and assembly structure stability is better.

In the above exhaust residue removal valve, the upper end of the blowdown cylinder is provided with an axial extension connecting part, the outer wall between the axial extension connecting part and the blowdown cylinder is provided with an outward turning edge, the axial extension connecting part of the blowdown cylinder is detachably and fixedly connected with the lower end of the valve body, and the lower end of the valve body is axially abutted against the outward turning edge. The outer wall of the axially extending connecting part of the pollution discharge cylinder is provided with an external thread, the inner wall of the lower end of the valve body is provided with an internal thread, the outer diameter of the pollution discharge cylinder is matched with the inner diameter of the valve body, the internal thread of the lower end of the valve body is spirally connected to the internal thread of the lower end of the valve body, a sealing ring is sleeved on the axially extending connecting part of the pollution discharge cylinder, and the sealing ring elastically acts on the valve body and turns outwards to enable the valve body and the pollution discharge cylinder to be in sealing fit with each other.

In the exhaust deslagging valve, the valve body is in a cylindrical shape, the upper end of the valve body is provided with a communication port used for being connected with the lower end of the exhaust valve, the water inlet pipe joint and the water outlet pipe joint are both arranged in the radial direction of the valve body, and the water inlet pipe joint and the water outlet pipe joint are distributed in opposite directions. The purpose of the arrangement is to effectively balance the through-flow liquid pressure between the water inlet pipe joint and the water outlet pipe joint, and the use is convenient.

In the exhaust deslagging valve, the water inlet end of the blowdown valve is spirally connected into the lower end of the blowdown cylinder, a pressing ring is arranged at the spiral connection position of the water inlet end of the blowdown valve and the lower end of the blowdown cylinder, a sealing ring is arranged between the pressing ring and the blowdown cylinder, and the pressing ring axially extrudes the sealing ring to deform so as to enable the blowdown valve and the blowdown cylinder to be in sealing fit. The purpose of setting up like this can guarantee the sealed validity between blowoff valve, the blowdown section of thick bamboo, and structural stability is high.

Compared with the prior art, the exhaust deslagging valve has the advantages that: structural design is reasonable, simple, and the funnel portion through the funnel pipe fitting is contrary to returning to keeping off the position in a blowdown section of thick bamboo, can prevent effectively that the contrary refluence of tiny impurity in aquatic from connecting to outlet pipe, and structural stability is high, and manufacturing convenient assembling, convenient to use.

Drawings

FIG. 1 is a schematic sectional view of the exhaust gas residue removal valve.

In the figure, 1, a valve body; 2. a blowoff valve; 3. a water inlet pipe joint; 4. a water outlet pipe joint; 5. a filter screen; 6. a blowdown cylinder; 7. a funnel tube; 8. a funnel part; 9. a guide pipe part; 10. expanding the diameter of the mounting ring; 11. an inner collar; 12. radial connecting ribs; 13. an axially extending connection; 14. turning out the edges; 15. a communication port; 16. a compression ring; 17. and (4) a sealing ring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, the exhaust deslagging valve mainly comprises a valve body 1 connected to the lower end of an exhaust valve, a blowdown valve 2 is arranged at the lower end of the valve body 1, a water inlet pipe connector 3 and a water outlet pipe connector 4 are arranged on the lateral portion of the valve body 1, a filter screen 5 is arranged in the valve body 1, the filter screen 5 is located between the water inlet pipe connector 3 and the water outlet pipe connector 4, the valve body 1 is cylindrical when in actual manufacturing, a communicating port 15 used for being connected with the lower end of the exhaust valve is arranged at the upper end of the valve body 1, the water inlet pipe connector 3 and the water outlet pipe connector 4 are both arranged in the radial direction of the valve body 1, and the water inlet pipe connector 3 and the water outlet pipe connector 4 are distributed oppositely.

A blowdown cylinder 6 is arranged between the valve body 1 and the blowdown valve 2, the upper end of the blowdown cylinder 6 is connected with the valve body 1, the lower end of the blowdown cylinder 6 is connected with the blowdown valve 2, and a reverse return device for preventing filter particles from flowing back to the water outlet pipe joint 4 is arranged in the blowdown cylinder 6; in actual manufacturing, the specific implementation mode of the flyback device is as follows: the filter screen mainly comprises a funnel pipe fitting 7, wherein the funnel pipe fitting 7 is coaxially assembled in a blowdown cylinder 6, the funnel pipe fitting 7 is in clearance fit with the blowdown cylinder 6, the upper end of the funnel pipe fitting 7 is adjacent to the lower port of the filter screen 5, and the lower end of the funnel pipe fitting 7 extends to the blowdown valve 2; specifically, the method comprises the following steps: the upper end of the funnel pipe fitting 7 is provided with a funnel part 8, the lower end of the funnel pipe fitting 7 is provided with a flow guide pipe part 9, the funnel part 8 and the flow guide pipe part 9 are connected into an integral structure, the upper port of the funnel part 8 of the funnel pipe fitting 7 is opposite to the lower port of the filter screen 5, and the lower port of the flow guide pipe part 9 of the funnel pipe fitting 7 is opposite to the water inlet end of the blow-down valve 2; during actual production, manufacturing and assembly, the upper end of the guide pipe part 9 of the funnel pipe fitting 7 is provided with an expanding installation ring 10, the outer edge of the lower end of the expanding installation ring 10 is provided with an annular assembly position, the inner wall of the sewage discharge cylinder 6 is provided with an inner convex ring 11, and the funnel pipe fitting 7 is clamped and assembled on the inner convex ring 11 of the sewage discharge cylinder 6 through the annular assembly position of the expanding installation ring 10; the diameter-expanding mounting ring 10 is horizontally distributed in the radial direction of the guide pipe part 9 of the funnel pipe 7, a radial connecting rib 12 is arranged between the diameter-expanding mounting ring 10 and the guide pipe part 9 of the funnel pipe 7, and the diameter-expanding mounting ring 10 and the guide pipe part 9 of the funnel pipe 7 are connected into a whole through the radial connecting rib 12.

In actual manufacturing, the upper end of the pollution discharge barrel 6 is provided with an axial extending connecting part 13, an outward turning edge 14 is arranged on the outer wall between the axial extending connecting part 13 and the pollution discharge barrel 6, the axial extending connecting part 13 of the pollution discharge barrel 6 is detachably and fixedly connected with the lower end of the valve body 1, and the lower end of the valve body 1 is axially abutted against the outward turning edge 14.

During actual manufacturing, the water inlet end of the blowoff valve 2 is spirally connected into the lower end of the blowdown cylinder 6, a pressing ring 16 is arranged at the spiral connection position of the water inlet end of the blowoff valve 2 and the lower end of the blowdown cylinder 6, a sealing ring 17 is arranged between the pressing ring 16 and the blowdown cylinder 6, and the pressing ring 16 axially extrudes the sealing ring 17 to deform so as to enable the blowoff valve 2 and the blowdown cylinder 6 to be in sealing fit.

Those not described in detail in this specification are within the skill of the art. The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. An exhaust deslagging valve comprises a valve body (1) and a blowdown valve (2), wherein the valve body (1) is used for being connected to the lower end of an exhaust valve, the blowdown valve (2) is arranged at the lower end of the valve body (1), a water inlet pipe connector (3) and a water outlet pipe connector (4) are arranged on the side portion of the valve body (1), a filter screen (5) is arranged in the valve body (1), the filter screen (5) is located between the water inlet pipe connector (3) and the water outlet pipe connector (4), the exhaust deslagging valve is characterized in that a blowdown cylinder (6) is arranged between the valve body (1) and the blowdown valve (2), the upper end of the blowdown cylinder (6) is connected with the valve body (1), the lower end of the blowdown cylinder (6) is connected with the blowdown valve (2), and a reverse return device for preventing filter particles from flowing back to the water outlet pipe connector (4) is arranged in the blowdown cylinder (6); the reverse device that returns include funnel pipe fitting (7), funnel pipe fitting (7) with the axial assembly in blowdown section of thick bamboo (6) and funnel pipe fitting (7) and blowdown section of thick bamboo (6) clearance fit, the upper end of funnel pipe fitting (7) be close to the lower port of filter screen (5), the lower extreme of funnel pipe fitting (7) extend to blowoff valve (2) department.

2. An exhaust and slag-removal valve according to claim 1, characterized in that the upper end of the funnel pipe member (7) is provided with a funnel part (8), the lower end of the funnel pipe member (7) is provided with a flow guide pipe part (9), the funnel part (8) and the flow guide pipe part (9) are connected into a whole, the upper port of the funnel part (8) of the funnel pipe member (7) is opposite to the lower port of the filter screen (5), and the lower port of the flow guide pipe part (9) of the funnel pipe member (7) is opposite to the water inlet end of the blowoff valve (2).

3. An exhaust and residue removal valve according to claim 2, wherein the upper end of the guide pipe portion (9) of the funnel pipe member (7) is provided with an expanding mounting ring (10), the outer edge of the lower end of the expanding mounting ring (10) is provided with an annular fitting position, the inner wall of the waste discharge cylinder (6) is provided with an inner annular ring (11), and the funnel pipe member (7) is fitted on the inner annular ring (11) of the waste discharge cylinder (6) through the annular fitting position of the expanding mounting ring (10).

4. An exhaust and slag-removal valve according to claim 3, characterized in that the diameter-enlarging mounting ring (10) is horizontally arranged in the radial direction of the guide pipe part (9) of the funnel pipe (7), a radial connecting rib (12) is arranged between the diameter-enlarging mounting ring (10) and the guide pipe part (9) of the funnel pipe (7), and the diameter-enlarging mounting ring (10) and the guide pipe part (9) of the funnel pipe (7) are connected into a whole through the radial connecting rib (12).

5. An exhaust and residue removal valve according to claim 4, wherein the upper end of the waste pipe (6) is provided with an axially extending connecting portion (13), the outer wall between the axially extending connecting portion (13) and the waste pipe (6) is provided with an outward turned edge (14), the axially extending connecting portion (13) of the waste pipe (6) is detachably and fixedly connected with the lower end of the valve body (1), and the lower end of the valve body (1) is axially abutted against the outward turned edge (14).

6. An air-exhausting and slag-removing valve according to claim 5, characterized in that the valve body (1) is cylindrical, the upper end of the valve body (1) is provided with a communication port (15) for connecting with the lower end of the exhaust valve, the water inlet pipe joint (3) and the water outlet pipe joint (4) are both arranged in the radial direction of the valve body (1), and the water inlet pipe joint (3) and the water outlet pipe joint (4) are distributed oppositely.

7. An exhaust deslagging valve according to claim 6, wherein the water inlet end of the blowdown valve (2) is screwed into the lower end of the blowdown cylinder (6), a compression ring (16) is arranged at the screwed joint of the water inlet end of the blowdown valve (2) and the lower end of the blowdown cylinder (6), a sealing ring (17) is arranged between the compression ring (16) and the blowdown cylinder (6), and the compression ring (16) axially presses the sealing ring (17) to deform so as to enable the blowdown valve (2) and the blowdown cylinder (6) to be in sealing fit.