CN109578621B - RTO pneumatic rotary valve - Google Patents
RTO pneumatic rotary valve Download PDFInfo
- Publication number
- CN109578621B CN109578621B CN201811563466.7A CN201811563466A CN109578621B CN 109578621 B CN109578621 B CN 109578621B CN 201811563466 A CN201811563466 A CN 201811563466A CN 109578621 B CN109578621 B CN 109578621B
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- Prior art keywords
- cavity
- air
- rto
- air inlet
- air outlet
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
- F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
- F16K27/045—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members with pivotal obturating members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/36—Actuating devices; Operating means; Releasing devices actuated by fluid in which fluid from the circuit is constantly supplied to the fluid motor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
Abstract
The invention discloses an RTO pneumatic rotary valve, which comprises: the air inlet of the air motor is provided with an air supply pipe extending to the outer side of the cover body, the outer circle of the lower portion of the cover body is in sealing connection with the bottom of the casing, and a limiting ring positioned below the rotator is arranged in the casing to divide the inner portion into an upper cavity and a lower cavity. Through the mode, the RTO pneumatic rotary valve disclosed by the invention has the advantages that the exhaust of the pneumatic motor is utilized to increase the air pressure of the lower cavity, so that the exhaust gas in the upper cavity is prevented from entering the lower cavity, the exhaust gas treatment effect is improved, the exhaust gas of the pneumatic motor can also be subjected to air cooling of a rotating body, and the use stability is improved.
Description
Technical Field
The invention relates to the field of environmental protection equipment, in particular to an RTO pneumatic rotary valve.
Background
RTO is a regenerative oxidation furnace, and organic matters in waste gas are oxidized into corresponding carbon dioxide and water at high temperature, so that the waste gas is purified, heat released during the decomposition of the waste gas is recovered, the decomposition efficiency of the three-chamber RTO waste gas reaches more than 99%, the heat recovery efficiency reaches more than 95%, and the efficiency is extremely high.
In the prior art, the RTO device adopts a rotary valve to control the air intake and exhaust of the oxidation furnace, and organic waste gas needs to be heated to 760 ℃ for oxidative decomposition, so that the exhaust temperature is very high, the valve is easy to overheat to influence the use stability, in addition, the air intake and exhaust are not tightly sealed, and part of waste gas is easy to be discharged without oxidation, so that the improvement is needed.
Disclosure of Invention
The invention mainly solves the technical problem of providing the RTO pneumatic rotary valve for air cooling and reducing the temperature and improving the waste gas treatment effect.
In order to solve the technical problems, the invention adopts a technical scheme that: provided is an RTO pneumatic rotary valve, comprising: the novel rotary air conditioner comprises a shell, a rotating body, a fixed cover, a floating plate and an air motor, wherein the rotating body is arranged in the shell, the fixed cover is located above the rotating body, the air motor is located below the rotating body, a driving shaft which extends downwards and is connected with a mandrel of the air motor is arranged in the rotating body, a cover body which extends to the lower part of the outer circle of the driving shaft is arranged on the floating plate, an air outlet of the air motor is located in the cover body, an air supply pipe which extends to the outer side of the cover body is arranged at an air inlet of the air motor, the outer circle of the lower part of the cover body is in sealing connection with the bottom of the shell, a limiting ring which is located below the rotating body is arranged in the shell, an inner part of the limiting ring is an upper cavity and a lower cavity, the rotating body is located in the upper cavity, the top of the cover body extends into the lower cavity, and an exhaust pipe joint which is communicated with the lower cavity is arranged on one side of the lower part of the shell.
In a preferred embodiment of the present invention, the swivel includes a cylinder with an open top and a top plate, the top plate is disposed at the top of the cylinder to seal, a partition plate is disposed in the cylinder to divide the inner cavity into an air inlet cavity and an air outlet cavity, a first air outlet corresponding to the air inlet cavity and a first air inlet corresponding to the air outlet cavity are disposed on the top plate, and a second air inlet corresponding to the first air outlet and a second air outlet corresponding to the first air inlet are disposed on the fixed cover.
In a preferred embodiment of the invention, the drive shaft is a hollow tube.
In a preferred embodiment of the invention, the pneumatic motor is located in a housing in which a bearing corresponding to the drive shaft is provided.
In a preferred embodiment of the present invention, the cover is of inverted T-shaped configuration.
In a preferred embodiment of the present invention, a third air outlet communicating the air exhaust cavity with the lower cavity is provided at the bottom of the cylinder.
In a preferred embodiment of the invention, a third air inlet which is communicated with the air inlet cavity and the upper cavity is arranged on the outer circle of the cylinder body.
In a preferred embodiment of the invention, a locating pin extending upwards is arranged in the middle of the top plate, and a guide sleeve concentric with the locating pin is arranged on the fixed cover.
In a preferred embodiment of the invention, an air inlet pipe joint communicated with the upper cavity is arranged on the outer side of the shell, and an exhaust gas pipeline is externally connected.
In a preferred embodiment of the invention, a telescopic cylinder is arranged below the floating plate, a fixed seat is arranged at the bottom of the telescopic cylinder, and a guide rod penetrating through the floating plate is arranged on the fixed seat.
The beneficial effects of the invention are as follows: the RTO pneumatic rotary valve particularly adopts the pneumatic motor to drive the rotator, and the exhaust of the pneumatic motor is utilized to increase the air pressure of the lower cavity, so that the exhaust gas in the upper cavity is prevented from entering the lower cavity, namely, the leakage problem of the exhaust gas is avoided, the exhaust gas treatment effect is improved, the exhaust gas of the pneumatic motor can also be used for cooling the rotator, and the use stability is improved.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic diagram of an RTO pneumatic rotary valve according to a preferred embodiment of the present invention.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, an embodiment of the present invention includes:
an RTO pneumatic rotary valve comprising: the rotary body comprises a shell 6, a rotary body, a fixed cover 16, a floating plate 2 and a pneumatic motor 27, wherein the rotary body is arranged in the shell 6, the fixed cover 16 is positioned above the rotary body, the rotary body comprises a cylinder body 7 with an opening at the top and a top plate 17, the top plate 17 is arranged at the top of the cylinder body 7 for welding and sealing, a partition plate is arranged in the cylinder body 7 to divide an inner cavity into an air inlet cavity 18 and an air outlet cavity 9, a first air outlet 15 corresponding to the air inlet cavity 18 and a first air inlet 10 corresponding to the air outlet cavity 9 are arranged on the top plate 17, and a second air inlet 14 corresponding to the first air outlet 15 and a second air outlet 11 corresponding to the first air inlet 10 are arranged on the fixed cover 16. The exhaust gas entering the air inlet cavity 18 enters the second air inlet 14 through the first air outlet 15 so as to enter the oxidation furnace, oxidation is realized into corresponding carbon dioxide and water, so that the exhaust gas is purified, and the hot air discharged by the oxidation furnace enters the first air inlet 10 through the second air outlet 11 so as to enter the exhaust cavity 9.
The air motor 27 is located below the swivel, and a driving shaft 21 extending downwards and connected with a core shaft of the air motor 27 is arranged in the swivel, and the driving shaft 21 is a hollow tube and is light in weight. The air inlet of the air motor 27 is provided with an air supply pipe 24 extending to the outer side of the cover body 25, a compressed air supply pipeline is externally connected, a valve is arranged on the compressed air supply pipeline for adjustment, and the air motor 27 is utilized for driving a rotator.
The floating plate 2 is provided with a cover body 25 extending to the lower part of the outer circle of the driving shaft 21, the outer circle of the lower part of the cover body 25 is in sealing connection with the bottom of the shell 6, a limiting ring positioned below a rotating body is arranged in the shell 6 to divide the inner part into an upper cavity 8 and a lower cavity 4, the rotating body is positioned in the upper cavity 8, the top of the cover body 25 extends into the lower cavity 4, the bottom of the cylinder 7 is provided with a third exhaust port 29 communicated with the exhaust cavity 9 and the lower cavity 4, air entering the exhaust cavity 9 is discharged into the lower cavity 4, and one side of the lower part of the shell 6 is provided with an exhaust pipe joint 5 communicated with the lower cavity 4 for discharging purified air.
The cover body 25 is of an inverted T-shaped structure, the air motor 27 is located in the cover body 25, a bearing 23 corresponding to the driving shaft 21 is arranged in the cover body 25, and rotation stability of the driving shaft 21 is improved. The air outlet 3 of the air motor 27 is positioned in the containing cavity 26 of the cover body 25, the cover body 25 is cooled by utilizing the exhaust gas, the exhaust gas enters the lower cavity 4, the air pressure of the lower cavity 4 is increased, the exhaust gas of the upper cavity 8 is prevented from entering the lower cavity 4, the purification efficiency of the exhaust gas is ensured, the air cooling of the rotator is performed by utilizing the exhaust gas, and the working stability of the high-temperature environment is improved.
An air inlet pipe joint 19 communicated with the upper cavity 8 is arranged on the outer side of the shell 6 and is externally connected with an exhaust gas pipeline. A third air inlet 20 which is communicated with the air inlet cavity 18 and the upper cavity 8 is arranged on the outer circle of the cylinder 7, so that waste gas enters the upper cavity 8 and the air inlet cavity 18.
The middle part of roof 17 is provided with the locating pin 13 that upwards extends, be provided with on the fixed lid 16 with the concentric uide bushing 12 of locating pin 13, avoid the skew, promote the stability of turning the upper and lower removal. The floating plate 2 below is provided with flexible cylinder 22, utilizes flexible cylinder 22 to carry out the reciprocating of turning, changes the clearance with fixed lid 16 to make the clearance have certain elasticity, flexible cylinder 22 bottom is provided with fixing base 28, be provided with the guide bar 1 that runs through floating plate 2 on the fixing base 28, promote the stability of floating plate 2 reciprocating.
In summary, according to the RTO pneumatic rotary valve, the pneumatic motor is particularly adopted to rotate and drive the rotator, and exhaust gas is utilized to cool the rotator, so that exhaust gas is prevented from entering the lower cavity 4, and the treatment efficiency of the exhaust gas is improved.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (6)
1. An RTO pneumatic rotary valve comprising: the rotary body is arranged in the shell, the fixed cover is positioned above the rotary body, and the rotary body is characterized by further comprising a floating plate and an air motor, the air motor is positioned below the rotary body, a driving shaft which extends downwards and is connected with a mandrel of the air motor is arranged in the rotary body, a cover body which extends to the lower part of the excircle of the driving shaft is arranged on the floating plate, an air outlet of the air motor is positioned in the cover body, an air supply pipe which extends to the outer side of the cover body is arranged at an air inlet of the air motor, the excircle of the lower part of the cover body is connected with the bottom of the shell in a sealing way, a limiting ring positioned below the rotary body is arranged in the shell to divide the inner part into an upper cavity and a lower cavity, the rotary body is positioned in the upper cavity, the top of the cover body extends into the lower cavity, one side of the lower part of the shell is provided with an air exhaust pipe joint which is communicated with the lower cavity, the rotating body comprises a cylinder body with an opening at the top and a top plate, the top plate is arranged at the top of the cylinder body for sealing, a baffle plate is arranged in the cylinder body for dividing an inner cavity into an air inlet cavity and an air outlet cavity, a first air outlet corresponding to the air inlet cavity and a first air inlet corresponding to the air outlet cavity are arranged on the top plate, a second air inlet corresponding to the first air outlet and a second air outlet corresponding to the first air inlet are arranged on the fixed cover, a third air outlet communicated with the air outlet cavity and the lower cavity is arranged at the bottom of the cylinder body, a third air inlet communicated with the air inlet cavity and the upper cavity is arranged on the outer circle of the cylinder body, an air inlet pipe joint communicated with the upper cavity is arranged at the outer side of the cylinder body and is externally connected with an exhaust pipeline, an air outlet of the air motor is positioned in a containing cavity of the cover body for cooling the cover body by utilizing air exhaust, exhaust enters the lower cavity, the air pressure of the lower cavity is increased, waste gas in the upper cavity is prevented from entering the lower cavity, the purification efficiency of the waste gas is ensured, the exhaust is utilized for carrying out air cooling of a rotator, and the working stability of a high-temperature environment is improved.
2. The RTO pneumatic rotary valve of claim 1, wherein the drive shaft is a hollow tube.
3. The RTO pneumatic rotary valve of claim 1, wherein the pneumatic motor is located in a housing having a bearing disposed therein that corresponds to the drive shaft.
4. The RTO pneumatic rotary valve of claim 1, wherein the housing is an inverted T-shaped structure.
5. The RTO pneumatic rotary valve of claim 1, wherein a locating pin extending upward is provided in the middle of the top plate, and a guide sleeve concentric with the locating pin is provided on the fixed cover.
6. The RTO pneumatic rotary valve according to claim 1, wherein a telescopic cylinder is arranged below the floating plate, a fixed seat is arranged at the bottom of the telescopic cylinder, and a guide rod penetrating through the floating plate is arranged on the fixed seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811563466.7A CN109578621B (en) | 2018-12-20 | 2018-12-20 | RTO pneumatic rotary valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811563466.7A CN109578621B (en) | 2018-12-20 | 2018-12-20 | RTO pneumatic rotary valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109578621A CN109578621A (en) | 2019-04-05 |
| CN109578621B true CN109578621B (en) | 2023-07-28 |
Family
ID=65931184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811563466.7A Active CN109578621B (en) | 2018-12-20 | 2018-12-20 | RTO pneumatic rotary valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109578621B (en) |
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| CN109578621A (en) | 2019-04-05 |
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