CN215721014U

CN215721014U - Gas and air proportional mixing device

Info

Publication number: CN215721014U
Application number: CN202121234423.1U
Authority: CN
Inventors: 廖勇
Original assignee: Shield Science & Technology Co ltd
Current assignee: Shield Science & Technology Co ltd
Priority date: 2021-06-03
Filing date: 2021-06-03
Publication date: 2022-02-01
Anticipated expiration: 2031-06-03

Abstract

The utility model discloses a gas and air proportional mixing device, which comprises a valve body, wherein a mixing cavity is formed in the valve body, gas inlet channels communicated with the mixing cavity are formed in two sides of the valve body, a gas outlet communicated with the mixing cavity is formed in one side of the valve body, a valve cavity is formed in the middle of the gas inlet channel, a valve rod extending into the valve cavity is arranged on the top surface of the valve body in a threaded mode, the bottom end of the valve rod is rotatably connected with a sealing plug matched with the valve cavity, and a protective sleeve is connected to the edge of the top surface of the sealing plug, so that the gas inlet amount of the two channels can be respectively controlled, the gas and the air can be mixed at any ratio, the gas and the air can be better mixed, the mixing effect of different gases and the air can be better guaranteed, and the actual requirements can be met.

Description

Gas and air proportional mixing device

Technical Field

The utility model relates to the technical field of gas mixing devices, in particular to a gas and air proportional mixing device.

Background

In the prior art, in the conventional gas and air proportional mixing device, a control center respectively controls the rotating speed of a fan, sucks specified amount of air, opens a gas proportional valve, enters specified amount of gas, and then is completely combusted in a combustor.

For example, the gas and air proportional mixing device of the authorized bulletin No. CN202209684U comprises an air inlet pipe, an air inlet plate, an air door plate, a valve rod, a valve core and a synchronous transmission mechanism matched with the air door plate and the valve rod; the valve core is matched with a valve core seat arranged on the air inlet pipe, and an air guide device is arranged on the valve core; the air door plate is provided with a plurality of air inlet holes, the air inlet plate is provided with air guide holes, and the air door plate is matched with the air inlet plate.

In the patent, the gas inlet pipe is used for inputting gas, and the valve rod is rotated, so that the valve core has different gas inlet amounts at different phases; because the air door plate and the valve core rotate synchronously, the air inflow is synchronously regulated while the gas inflow is regulated, so that a proper gas-air mixing proportion is kept, the gas combustion is ensured to be sufficient, the exhaust emission is reduced, the environment is protected, but the gas and air inflow are synchronously regulated in control, the actual regulation is more limited, and therefore, the gas and air proportion mixing device is provided for better meeting the gas and air proportion regulation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In view of the defects of the prior art, the utility model provides a gas and air proportional mixing device, which solves the problems.

(II) technical scheme

In order to achieve the purpose, the utility model is realized by the following technical scheme: a gas and air proportional mixing device comprises a valve body, wherein the valve body is provided with a mixing cavity, both sides of the valve body are provided with gas inlet channels communicated with the mixing cavity, and one side of the valve body is provided with a gas outlet communicated with the mixing cavity;

the middle of the air inlet channel is provided with a valve cavity, the top surface of the valve body is provided with a valve rod extending into the valve cavity in a threaded manner, and the bottom end of the valve rod is rotatably connected with a sealing plug matched with the valve cavity;

and a protective sleeve is connected to the edge of the top surface of the sealing plug.

Preferably, the diameter of the valve cavity is larger than that of the air inlet passage, the top surface of the valve cavity is higher than that of the air inlet passage, and the bottom surface of the valve cavity is lower than that of the air inlet passage.

Preferably, the top surface of the valve body is provided with a valve hole communicated with the valve cavity, the valve rod is in threaded connection with the valve hole, and the upper end of the valve rod is connected with a rotary table.

Preferably, the closing plug is arranged in the valve cavity in the form of a piston, a mounting sleeve is fixed on the top surface of the closing plug, and the bottom end of the valve rod is rotatably arranged in the mounting sleeve.

Preferably, the inner wall of installation cover is seted up the recess of loop configuration, the bottom of valve rod is connected with the card and establishes the board, the card is established in the recess, the installation cover is made by elastic material, the diameter that the board was established in the card is greater than the diameter of valve rod.

Preferably, the outer part of the outer port of the air outlet is provided with a thread groove, and the inner diameter of the thread groove is larger than that of the air outlet.

Preferably, the outer wall of the protective sleeve and the surface of the closing plug are arranged smoothly, the protective sleeve is of an annular structure, and the protective sleeve is arranged in the valve cavity in a sliding mode.

(III) advantageous effects

The utility model provides a gas and air proportional mixing device. The method has the following beneficial effects: can control the entering volume of two passageway gases respectively, and then can mix by gas and air than wantonly, make its better satisfy the mixture of different gas and air, guarantee that gas and air mixing effect is better, make its demand that satisfies reality.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic cross-sectional view of the valve body of the present invention;

FIG. 3 is a schematic structural view of the present invention;

FIG. 4 is a schematic view of the connection structure of the closing plug of the present invention;

fig. 5 is a schematic view of the valve stem of the present invention.

In the figure: 1. a valve body; 2. a mixing chamber; 3. an air outlet; 4. an air intake passage; 6. a valve cavity; 7. a valve bore; 8. a valve stem; 9. a closing plug; 10. a protective sleeve; 11. installing a sleeve; 12. a groove; 13. clamping the plate; 14. a turntable; 15. a thread groove.

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.

Referring to fig. 1-5, the present invention provides a technical solution: a gas and air proportional mixing device comprises a valve body 1, wherein a mixing cavity 2 is arranged in the valve body 1, gas inlet channels 4 communicated with the mixing cavity 2 are respectively formed in two sides of the valve body 1, a gas inlet pipeline 4 is horizontally communicated with the mixing cavity 2, the inner diameter of the gas inlet pipeline 4 is smaller than the inner diameter of the mixing cavity 2, a gas outlet 3 communicated with the mixing cavity 2 is formed in one side of the valve body 1, the gas outlet 3 is formed in the side face of the valve body 1, the side face of the mixing cavity 2 is prevented from being shared with the gas inlet pipeline 4, and mixing after gas inlet is guaranteed;

the middle of the air inlet passage 4 is provided with a valve cavity 6, the diameter of the valve cavity 6 is larger than that of the air inlet passage 4, the top surface of the valve cavity 6 is higher than that of the air inlet passage 4, the bottom surface of the valve cavity 6 is lower than that of the air inlet passage 4, so that the upper part and the lower part of the valve cavity 6 are protruded, and a sealing plug 9 is conveniently arranged, the valve cavity 6 is of a columnar structure, the top surface thread of the valve body 1 is provided with a valve rod 8 extending into the valve cavity 6, the top surface of the valve body 1 is provided with a valve hole 7 communicated with the valve cavity 6, the inner wall of the valve hole 7 is provided with an internal thread, the external thread on the surface of the valve rod 8 is connected in the valve hole 7, the upper end of the valve rod 8 is connected with a turntable 14, the turntable 14 is convenient to operate, the bottom end of the valve rod 8 is rotatably connected with the sealing plug 9 matched with the valve cavity 6, the sealing plug 9 is arranged in the valve cavity 6 in a piston mode, so that the sealing effect between the sealing plug 9 and the valve cavity 6 is good, the top surface of the sealing plug 9 is fixed with an installation sleeve 11, the mounting sleeve 11 is made of elastic materials, so that the mounting sleeve 11 can be elastically deformed, the bottom end of the valve rod 8 is connected with a clamping plate 13, the clamping plate 13 is disc-shaped, a groove 12 with an annular structure is formed in the inner wall of the mounting sleeve 11, the clamping plate 13 is clamped in the groove 12, the clamping plate 13 can rotate in the groove 12 when the valve rod 8 is rotated, and the diameter of the clamping plate 13 is larger than that of the valve rod 8;

the edge of the top surface of the sealing plug 9 is connected with a protective sleeve 10, the outer wall of the protective sleeve 10 and the surface of the sealing plug 9 are arranged smoothly, the protective sleeve 10 is of an annular structure, and the protective sleeve 10 is arranged in the valve cavity 6 in a sliding mode, so that the protective sleeve 10 plays a role in sealing the upper portion of the valve cavity 6.

In order to facilitate connection, a thread groove 15 is formed in the outer portion of the outer port of the gas outlet 3, and the inner diameter of the thread groove 15 is larger than that of the gas outlet 3, so that an external pipeline can be connected in the thread groove 15 in a threaded mode and abutted against the inner end wall of the thread groove 15.

In actual operation, can rotate carousel 14, and then make valve rod 8 downwards along valve opening 7 screw thread, and make at rotation valve rod 8, card establishes board 13 and can rotate in recess 12, and then valve rod 8 moves down and makes, can drive and seal stopper 9 downwards, change the connectivity of inlet channel 4 and mixing chamber 2, and then the gaseous air input of control, and the upper portion of valve chamber 6 is sealed by lag 10 again, the closure on reinforcing valve chamber 6 upper portion, thereby can control the inflow of two passageway gases respectively, and then can mix by gas and air random ratio, make its better mixture that satisfies different gas and air, it is better to guarantee that gas and air mixing effect, it is better to make it satisfy actual demand.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

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 utility model provides a gas and air proportional mixing device, includes valve body (1), its characterized in that: the mixing valve is characterized in that the valve body (1) is provided with a mixing cavity (2), both sides of the valve body (1) are provided with air inlet channels (4) communicated with the mixing cavity (2), and one side of the valve body (1) is provided with an air outlet (3) communicated with the mixing cavity (2);

a valve cavity (6) is arranged in the middle of the air inlet channel (4), a valve rod (8) extending into the valve cavity (6) is arranged on the top surface of the valve body (1) in a threaded mode, and a sealing plug (9) matched with the valve cavity (6) is rotatably connected to the bottom end of the valve rod (8);

and a protective sleeve (10) is connected to the edge of the top surface of the closing plug (9).

2. A gas and air proportional mixing device according to claim 1, wherein: the diameter of the valve cavity (6) is larger than that of the air inlet channel (4), the top surface of the valve cavity (6) is higher than that of the air inlet channel (4), and the bottom surface of the valve cavity (6) is lower than that of the air inlet channel (4).

3. A gas and air proportional mixing device according to claim 1, wherein: the valve is characterized in that a valve hole (7) communicated with the valve cavity (6) is formed in the top surface of the valve body (1), the valve rod (8) is connected into the valve hole (7) in a threaded mode, and the upper end of the valve rod (8) is connected with a rotary table (14).

4. A gas and air proportional mixing device according to claim 1, wherein: the sealing plug (9) is arranged in the valve cavity (6) in a piston mode, a mounting sleeve (11) is fixed to the top surface of the sealing plug (9), and the bottom end of the valve rod (8) is rotatably arranged in the mounting sleeve (11).

5. A gas and air proportional mixing device according to claim 4, wherein: annular structure's recess (12) are seted up to the inner wall of installation cover (11), the bottom of valve rod (8) is connected with the card and establishes board (13), the card is established board (13) card and is established in recess (12), installation cover (11) are made by elastic material, the diameter that the card was established board (13) is greater than the diameter of valve rod (8).

6. A gas and air proportional mixing device according to claim 1, wherein: and a thread groove (15) is formed in the outer part of the outer port of the air outlet (3), and the inner diameter of the thread groove (15) is larger than that of the air outlet (3).

7. A gas and air proportional mixing device according to claim 1, wherein: the outer wall of the protective sleeve (10) and the surface of the closing plug (9) are arranged smoothly, the protective sleeve (10) is of an annular structure, and the protective sleeve (10) is arranged in the valve cavity (6) in a sliding mode.