CN216078817U

CN216078817U - High-temperature-resistant rotary gas distribution valve

Info

Publication number: CN216078817U
Application number: CN202121863331.XU
Authority: CN
Inventors: 徐静初
Original assignee: Suzhou Frars Precision Machinery Co ltd
Current assignee: Suzhou Frars Precision Machinery Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-03-18
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses a high-temperature-resistant rotary gas distribution valve which comprises a gas distribution valve body and a drainage protection mechanism, wherein one side of the gas distribution valve body is fixedly and alternately connected with a gas inlet pipe, one side of the gas inlet pipe is provided with a connecting pipe, the inner wall of the connecting pipe is fixedly connected with a limiting ring, one side of the limiting ring is provided with a first sealing ring, the drainage protection mechanism comprises a fixing ring, the fixing ring is fixedly connected with the inner wall of the gas inlet pipe, the inner wall of the fixing ring is fixedly connected with a drainage pipe, one side of the limiting ring is provided with an annular groove, and one side of the limiting ring is provided with a heat insulation mechanism. According to the utility model, the fixing ring, the drainage tube and the heat insulation mechanism are arranged, the drainage tube is arranged in the inlet tube through the fixing ring, and then the heat insulation mechanism is matched to separate the flowing high-temperature gas from the first sealing ring, so that the phenomenon of damage to the first sealing ring caused by long-time direct contact of the high-temperature gas and the first sealing ring is avoided, and the sealing property between the air inlet pipe and the connecting pipe of the rotary gas distribution valve is improved.

Description

High-temperature-resistant rotary gas distribution valve

Technical Field

The utility model relates to the technical field of gas distribution valves, in particular to a high-temperature-resistant rotary gas distribution valve.

Background

The gas distribution valve is also called a gas path control electromagnetic valve. The rotary gas distribution valve is one of gas distribution valves, and can be widely applied to a two-compartment or multi-compartment chamber heat storage incineration device, a two-compartment or multi-compartment chamber heat storage catalytic oxidation device and a two-compartment or multi-compartment chamber activated carbon, zeolite and activated carbon fiber adsorption and desorption gas purification device.

The intake pipe on the rotatory gas distribution valve is being connected the during operation with the connecting pipe, have good leakproofness in order to guarantee the pipe connection, generally can add between intake pipe and connecting pipe and establish first sealing washer, but when rotatory gas distribution valve is carrying out high temperature operation, the phenomenon that high-temperature gas and the long-time direct contact of first sealing washer cause first sealing washer to damage appears easily, this phenomenon that will lead to appearing leaking gas between intake pipe and the connecting pipe has reduced the leakproofness between rotatory gas distribution valve intake pipe and the connecting pipe.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a high temperature resistant rotary gas distribution valve that solves the problems set forth in the background above.

In order to achieve the purpose, the utility model provides the following technical scheme: the high-temperature-resistant rotary gas distribution valve comprises a gas distribution valve body and a drainage protection mechanism, wherein a gas inlet pipe is fixedly and alternately connected to one side of the gas distribution valve body, a connecting pipe is arranged on one side of the gas inlet pipe, a limiting ring is fixedly connected to the inner wall of the connecting pipe, and a first sealing ring is arranged on one side of the limiting ring;

the drainage protection mechanism comprises a mounting ring, the mounting ring is fixedly connected to the inner wall of the air inlet pipe, a drainage pipe is fixedly connected to the inner wall of the mounting ring, a ring groove is formed in one side of the limiting ring, an inner cavity of the ring groove is in sliding sleeve connection with the outer wall of the drainage pipe, and a heat insulation mechanism is arranged on one side of the limiting ring.

Preferably, the heat insulation mechanism comprises a heat insulation backing ring, the bottom of the heat insulation backing ring is fixedly connected with one side of the limiting ring, a separation ring is fixedly connected with one side of the heat insulation backing ring, and the inner cavity of the separation ring is movably sleeved with the outer wall of the drainage tube.

Preferably, the first sealing ring is fixedly connected to one side of the heat insulation backing ring, and the inner wall of the first sealing ring is fixedly sleeved with the outer wall of the separation ring.

Preferably, the outer wall of the air inlet pipe is provided with uniformly distributed external threads, the inner wall of the connecting pipe is provided with uniformly distributed internal threads, and the inner wall of the connecting pipe is in threaded connection with the outer wall of the air inlet pipe through the internal threads.

Preferably, the outer wall fixedly connected with of intake pipe is solid fixed ring, gu one side fixedly connected with second sealing washer of solid fixed ring.

Preferably, the outer wall of the connecting pipe is fixedly sleeved with a pipe sleeve, and the outer wall of the pipe sleeve is provided with anti-skid grains which are uniformly distributed.

The utility model has the technical effects and advantages that:

(1) according to the utility model, by utilizing the arrangement of the fixing ring, the drainage tube and the heat insulation mechanism, the drainage tube is arranged in the inlet tube through the fixing ring, and then the heat insulation mechanism is matched to separate the flowing high-temperature gas from the first sealing ring, so that the phenomenon of damage of the first sealing ring caused by long-time direct contact of the high-temperature gas and the first sealing ring is avoided, and the sealing property between the air inlet tube of the rotary gas distribution valve and the connecting tube is improved;

(2) according to the utility model, the secondary sealing work of the air inlet pipe and the connecting pipe is completed through the limiting ring and the second sealing ring by utilizing the arrangement of the limiting ring and the second sealing ring, so that the sealing property between the air inlet pipe and the connecting pipe of the rotary gas distribution valve is further improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic sectional view of the intake duct of the present invention.

FIG. 3 is an enlarged view of a portion A of FIG. 2 according to the present invention.

In the figure: 1. a gas distribution valve body; 2. an air inlet pipe; 3. a connecting pipe; 4. a limiting ring; 5. a first seal ring; 6. a mounting ring; 7. a drainage tube; 8. a thermally insulating grommet; 9. a spacer ring; 10. a fixing ring; 11. a second seal ring; 12. and (4) pipe sleeves.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a high-temperature-resistant rotary gas distribution valve shown in figures 1-3, which comprises a gas distribution valve body 1 and a drainage protection mechanism, wherein the drainage protection mechanism plays a role in drainage of high-temperature gas in a connecting pipe 3 and simultaneously plays a role in protection of a first sealing ring 5, one side of the gas distribution valve body 1 is fixedly and alternately connected with a gas inlet pipe 2, one side of the gas inlet pipe 2 is provided with the connecting pipe 3, the inner wall of the connecting pipe 3 is fixedly connected with a limiting ring 4, one side of the limiting ring 4 is provided with the first sealing ring 5, the first sealing ring 5 plays a role in sealing connection between the gas inlet pipe 2 and the connecting pipe 3, the outer wall of the connecting pipe 3 is fixedly sleeved with a pipe sleeve 12, the pipe sleeve 12 is convenient for a worker to apply force to drive the connecting pipe 3 to move, and the outer wall of the pipe sleeve 12 is provided with anti-skid grains which are uniformly distributed;

the drainage protection mechanism comprises a mounting ring 6, the mounting ring 6 is used for connecting the drainage tube 7 and the air inlet pipe 2, the mounting ring 6 is fixedly connected to the inner wall of the air inlet pipe 2, the drainage tube 7 is fixedly connected to the inner wall of the mounting ring 6, one side of the limiting ring 4 is provided with a ring-shaped groove, the inner cavity of the ring-shaped groove is in sliding sleeve joint with the outer wall of the drainage tube 7, one side of the limiting ring 4 is provided with a heat insulation mechanism, and the heat insulation mechanism plays a role in heat insulation protection on the first sealing ring 5;

the heat insulation mechanism comprises a heat insulation backing ring 8, the heat insulation backing ring 8 plays a role in heat insulation protection for the bottom of the first sealing ring 5, the bottom of the heat insulation backing ring 8 is fixedly connected with one side of the limiting ring 4, one side of the heat insulation backing ring 8 is fixedly connected with a separating ring 9, the separating ring 9 plays a role in heat insulation protection for the inner wall of the first sealing ring 5, the heat insulation backing ring 8 and the separating ring 9 are both made of heat insulation plates, the inner cavity of the separating ring 9 is movably sleeved with the outer wall of the drainage tube 7, the first sealing ring 5 is fixedly connected to one side of the heat insulation backing ring 8, and the inner wall of the first sealing ring 5 is fixedly sleeved with the outer wall of the separating ring 9;

evenly distributed's external screw thread is seted up to intake pipe 2's outer wall, evenly distributed's internal thread is seted up to connecting pipe 3's inner wall, connecting pipe 3's inner wall passes through internal thread and intake pipe 2's outer wall threaded connection, the solid fixed ring 10 of outer wall fixedly connected with of intake pipe 2, gu fixed ring 10 is injectd the length that connecting pipe 3 can cup joint in intake pipe 2, gu one side fixedly connected with second sealing washer 11 of fixed ring 10, second sealing washer 11 and solid fixed ring 10 make and accomplish the secondary seal work between connecting pipe 3 and the intake pipe 2, further improve the leakproofness between rotatory gas distribution valve intake pipe 2 and the connecting pipe 3.

The working principle of the utility model is as follows:

when the intake pipe 2 that needs will rotate the gas distribution valve is connected with connecting pipe 3, at first through applying the ascending power of turning to clockwise to pipe box 12, make connecting pipe 3 cup joint in intake pipe 2 and accomplish threaded connection, in this process drainage tube 7 can insert in the connecting pipe 3 and move until closely laminating with one side of ring channel inner wall, intake pipe 2 can extrude first sealing washer 5 this moment, connecting pipe 3 can extrude second sealing washer 11, thereby accomplish sealed work, when the circulation high-temperature gas in connecting pipe 3 and intake pipe 2, high-temperature gas can pass through in drainage tube 7 transition intake pipe 2, can not with first sealing washer 5 direct contact, thermal-insulated backing ring 8 and spacer ring 9 also can play the effect of protection to first sealing washer 5 simultaneously, thereby ensure that first sealing washer 5 can not appear damaging because of the high temperature.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The standard parts used by the utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the description of the attached drawings.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The high-temperature-resistant rotary gas distribution valve comprises a gas distribution valve body (1) and a drainage protection mechanism, and is characterized in that one side of the gas distribution valve body (1) is fixedly and alternately connected with a gas inlet pipe (2), one side of the gas inlet pipe (2) is provided with a connecting pipe (3), the inner wall of the connecting pipe (3) is fixedly connected with a limiting ring (4), and one side of the limiting ring (4) is provided with a first sealing ring (5);

drainage protection mechanism includes collar (6), collar (6) fixed connection is in the inner wall of intake pipe (2), the inner wall fixedly connected with drainage tube (7) of collar (6), the ring channel has been seted up to one side of spacing ring (4), the inner chamber of ring channel slides with the outer wall of drainage tube (7) and cup joints, one side of spacing ring (4) is equipped with thermal-insulated mechanism.

2. The high-temperature-resistant rotary gas distribution valve according to claim 1, wherein the heat insulation mechanism comprises a heat insulation backing ring (8), the bottom of the heat insulation backing ring (8) is fixedly connected with one side of the limiting ring (4), a separation ring (9) is fixedly connected with one side of the heat insulation backing ring (8), and the inner cavity of the separation ring (9) is movably sleeved with the outer wall of the drainage tube (7).

3. The high-temperature-resistant rotary gas distribution valve according to claim 1, wherein the first sealing ring (5) is fixedly connected to one side of the heat-insulating backing ring (8), and the inner wall of the first sealing ring (5) is fixedly sleeved with the outer wall of the separating ring (9).

4. The high-temperature-resistant rotary gas distribution valve according to claim 1, wherein the outer wall of the gas inlet pipe (2) is provided with uniformly distributed external threads, the inner wall of the connecting pipe (3) is provided with uniformly distributed internal threads, and the inner wall of the connecting pipe (3) is in threaded connection with the outer wall of the gas inlet pipe (2) through the internal threads.

5. High temperature resistant rotary gas distribution valve according to claim 1, characterized in that a fixed ring (10) is fixedly connected to the outer wall of the inlet pipe (2), a second sealing ring (11) being fixedly connected to one side of the fixed ring (10).

6. The high-temperature-resistant rotary gas distribution valve according to claim 1, wherein a pipe sleeve (12) is fixedly sleeved on the outer wall of the connecting pipe (3), and the outer wall of the pipe sleeve (12) is provided with anti-skid lines which are uniformly distributed.