CN218267323U

CN218267323U - Combustible gas precision regulating valve

Info

Publication number: CN218267323U
Application number: CN202222510345.4U
Authority: CN
Inventors: 邹佐亮; 贾让明; 庄艳燕
Original assignee: Shanghai Weiru Thermal Energy Technology Development Co ltd
Current assignee: Shanghai Weiru Thermal Energy Technology Development Co ltd
Priority date: 2022-09-22
Filing date: 2022-09-22
Publication date: 2023-01-10
Anticipated expiration: 2032-09-22

Abstract

The utility model discloses a smart volume governing valve of combustible gas, which comprises a valve body, the inside cavity that is equipped with of valve body, the cavity is including installation passageway and gas channel, installation passageway and gas channel communicate each other, are the cross and distribute, installation passageway internally mounted has the case subassembly, case subassembly upper end stretches out installation passageway connection adjustment handle, installation passageway bottom is equipped with the shrouding, the valve body is connected to the shrouding, the valve body top is equipped with the mounting groove, mounting groove internally mounted has the calibrated scale, the calibrated scale is passed to case subassembly upper end, be equipped with curved trapezoidal channel on the case subassembly, curved trapezoidal channel is located inside the gas channel. The lower end of the valve core of the structure adopts a curve-shaped trapezoidal channel, and the size of the valve can be adjusted in a step mode through adjusting the channel, so that the gas quantity can be accurately and linearly controlled.

Description

Combustible gas precision regulating valve

Technical Field

The utility model relates to a gas control valve technical field, concretely relates to smart volume governing valve of combustible gas.

Background

At present, the combustible gas regulating valve is one of industrial process control instruments widely used by industrial enterprises of petroleum, chemical industry, electric power, metallurgy and the like. With the great investment of energy-saving combustion equipment, the control requirement on combustible gas in the combustion equipment is higher and higher. The existing regulating valve is not easy to accurately control the gas quantity, so a special linear flow regulating valve in the field of combustion equipment is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a smart volume governing valve of combustible gas to solve the problem of mentioning in the background art. In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a smart volume governing valve of combustible gas, includes the valve body, the inside cavity that is equipped with of valve body, the cavity includes installation passageway and gas channel, installation passageway and gas channel communicate each other, are the cross and distribute, installation passageway internally mounted has the case subassembly, case subassembly upper end stretches out installation passageway connection adjustment handle, installation passageway bottom is equipped with the shrouding, the valve body is connected to the shrouding, the valve body top is equipped with the mounting groove, mounting groove internally mounted has the calibrated scale, the calibrated scale is passed to case subassembly upper end, be equipped with the trapezoidal passageway of curved on the case subassembly, the trapezoidal passageway of curved is located inside the gas channel.

Preferably, the case subassembly includes the case, the case is the step cylindric, installation channel structure corresponds with the case, the regulation handle is connected on the case top, the case lower extreme is located to curved trapezoidal passageway, curved trapezoidal passageway is located inside the gas passage, the case bottom is passed the gas passage and is located the installation passageway lower extreme, the case upper end is provided with spacing platform, spacing bench is installed spacing gasket, the diameter of spacing gasket is greater than installation passageway upper end diameter for support the case, spacing platform below is equipped with the seal groove, seal groove internally mounted has the sealing washer, sealing washer and installation passageway inner wall sealing contact.

Preferably, the gas channel is communicated with a micro-regulation bypass, a micro-regulation assembly and a connecting pipeline are installed on the micro-regulation bypass, and the micro-regulation assembly is communicated with the connecting pipeline.

Preferably, the micro-regulation bypass is provided with an installation channel I and a micro-regulation gas channel, the installation channel I is communicated with the micro-regulation gas channel, a micro-regulation assembly is installed inside the installation channel I, the micro-regulation assembly comprises a regulation valve core and a valve cover, the regulation valve core is installed inside the installation channel I, the lower end of the regulation valve core is provided with a valve core channel, the valve core channel is located inside the micro-regulation gas channel, the top of the installation channel I is connected with the valve cover, and the connecting pipeline is installed inside the micro-regulation gas channel.

Preferably, the surfaces of the two ends of the gas channel are flange surfaces, the end part of the gas channel is positioned in the center of the flange surface, pipe threads are arranged on the inner walls of the two ends of the gas channel, a sealing groove I is formed in the middle of the flange surface, and the sealing groove I is positioned on the outer ring of the end part of the gas channel.

Preferably, a bottom sealing ring is arranged between the sealing plate and the valve body, and the bottom sealing ring is matched with the sealing plate and used for sealing and installing the bottom end opening of the channel.

Preferably, the valve core is provided with two sealing grooves, sealing rings are installed inside the two sealing grooves, and the sealing rings are in sealing contact with the inner wall of the installation channel.

The utility model discloses a technological effect and advantage: the lower end of the valve core of the structure adopts a curve-shaped trapezoidal channel, and the size of the valve can be adjusted in a step manner by adjusting the channel, so that the gas quantity can be accurately and linearly controlled; the micro-adjustment bypass is arranged, so that a small amount of gas can be controlled to flow to other detection equipment or other used bypasses, the trouble of leading the bypass out of the main pipeline is simplified, and the use safety and the adaptability of use functions are improved; the combined installation is carried out by adopting two modes of special fast-assembling flanges or threads.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of the valve body structure of the present invention;

fig. 4 is a schematic structural view of the valve core assembly of the present invention;

fig. 5 is a sectional view of the valve body of the present invention.

In the figure, 1. Valve body; 2. installing a channel; 3. a gas channel; 4. a valve core assembly; 5. adjusting the handle; 6. closing plates; 7. mounting grooves; 8. a dial scale; 9. a curvilinear trapezoidal channel; 10. a valve core; 11. a bottom seal ring; 12. a limiting table; 13. a limiting gasket; 14. a sealing groove; 15. a seal ring; 16. installing a channel I; 17. a micro-regulated gas channel; 18. adjusting the valve core; 19. a spool passage; 20. a valve cover; 21. connecting a pipeline; 22. a flange face; 23. seal groove I.

Detailed Description

In order to make the technical means, the creative features, the objectives and the functions of the present invention easily understood and appreciated, the present invention will be further described with reference to the specific drawings, and in the description of the present invention, unless otherwise specified or limited, the terms "mounted," connected "and" connected "should be understood broadly, and for example, the terms" fixed connection, "detachable connection," integral connection, mechanical connection, and electrical connection may be used; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

Example 1

As shown in fig. 1-3, the precise fuel gas regulating valve comprises a valve body 1, a cavity is arranged inside the valve body 1, the cavity comprises an installation channel 2 and a gas channel 3, the installation channel 2 and the gas channel 3 are communicated with each other and are distributed in a cross shape, a valve core assembly 4 is arranged inside the installation channel 2, the upper end of the valve core assembly 4 extends out of the installation channel and is connected with a regulating handle 5, a sealing plate 6 is arranged at the bottom of the installation channel 2, the sealing plate 6 is connected with the valve body 1, a mounting groove 7 is arranged at the top of the valve body 1, a dial 8 is arranged inside the mounting groove 7, the dial 8 penetrates through the upper end of the valve core assembly 4, a curved trapezoidal channel 9 is arranged on the valve core assembly 4, the curved trapezoidal channel 9 is located inside the gas channel 3, and the size of the valve can be regulated in a step mode by regulating the curved trapezoidal channel 9, so that the size of the fuel gas can be accurately controlled in a linear mode.

Example 2

As shown in fig. 1-5, the precise fuel gas regulating valve includes a valve body 1, a cavity is arranged inside the valve body 1, the cavity includes an installation channel 2 and a gas channel 3, the installation channel 2 and the gas channel 3 are communicated with each other and distributed in a cross shape, a valve core assembly 4 is arranged inside the installation channel 2, the upper end of the valve core assembly 4 extends out of the installation channel and is connected with a regulating handle 5, a sealing plate 6 is arranged at the bottom of the installation channel 2, the sealing plate 6 is connected with the valve body 1, a bottom sealing ring 11 is arranged between the sealing plate 6 and the valve body 1, and the bottom sealing ring 11 is matched with the sealing plate 6 to seal an opening at the bottom end of the installation channel 2; the top of the valve body 1 is provided with an installation groove 7, a dial 8 is installed in the installation groove 7, the upper end of the valve core assembly 4 penetrates through the dial 8, the valve core assembly 4 is provided with a curved trapezoidal channel 9, and the curved trapezoidal channel 9 is located in the gas channel 3;

the valve core assembly 4 comprises a valve core 10, the valve core 10 is in a stepped cylindrical shape, the structure of the installation channel 2 corresponds to the valve core 10, the valve core 10 can be assembled from the lower end to the upper end of the valve body 1, meanwhile, the stepped cylindrical shape can limit the lower end of the valve core 10, the top end of the valve core 10 is connected with an adjusting handle 5, the curved trapezoidal channel 9 is arranged at the lower end of the valve core 10, the curved trapezoidal channel 9 is positioned in the gas channel 3, the bottom end of the valve core 10 penetrates through the gas channel 3 and is positioned at the lower end of the installation channel 2, the upper end of the valve core 10 is provided with a limiting table 12, the limiting table 12 is provided with a limiting gasket 13, the diameter of the limiting gasket 13 is larger than that of the upper end of the installation channel 2 and is used for supporting the upper end of the valve core 10, two sealing grooves 14 are arranged below the limiting table 12, a sealing ring 15 is arranged in the sealing groove 14, and the sealing ring 15 is in sealing contact with the inner wall of the installation channel 2, so as to realize the sealing of the upper port of the installation channel 2;

wherein, 3 intercommunication micro-adjustment bypasses of gas passage, it has installation passageway I16 and micro-adjustment gas channel 17 to open on the micro-adjustment bypass, installation passageway I16 and micro-adjustment gas channel 17 intercommunication, installation passageway I16 internally mounted has adjusting valve core 18, adjusting valve core 18 lower extreme is opened has case passageway 19, case passageway 19 is located inside micro-adjustment gas channel 17, adjust the gas flow through the area of intercommunication between adjusting valve core passageway 19 and the micro-adjustment gas channel 17, installation passageway 16 top connection valve gap 20, can prevent gas escape, install connecting tube 21 in the micro-adjustment gas channel 17, the micro-adjustment bypass can control a small amount of gas flow to other check out test set or other use bypasses, the trouble of drawing the bypass from the main line has been simplified, the suitability of safe in utilization and service function has been improved simultaneously. When the micro-adjustment bypass is used, the connecting pipeline 21 is connected with other detection equipment; when not in use, the connecting pipeline 21 can be plugged;

the gas channel is characterized in that the surfaces of two ends of a gas channel 3 are flange surfaces 22, the end part of the gas channel 3 is positioned in the center of the flange surfaces 22, pipe threads are arranged on the inner walls of the two ends of the gas channel 3, a sealing groove I23 is formed in the middle of the flange surfaces 22, and the sealing groove I23 is positioned on the outer ring of the end part of the gas channel 3, so that the regulating valve can be combined in two selection modes of a special quick-mounting flange and a special thread, the flange surfaces 22 and the valve body 1 are designed into a whole, a standard pipe thread hole is formed in the center of the end surface of the flange, when a control piece connected with the flange is a thread, the thread connection is adopted, when the control piece connected with the flange is in a flange connection mode, the flange is matched with a flange corresponding to the control piece, a special conical nut is matched with a screw rod between the flanges, the gap between the two flanges is locked by changing the distance between the nut and the screw rod, and in the flange connection, and a corresponding sealing groove I23 is arranged in the sealing groove to ensure reliable sealing.

The utility model discloses process flow and theory of operation do: when the regulating valve is used, the valve core 10 can be rotated through the regulating handle 5 as required, the flow is selected according to the mark on the dial 8, the valve core 10 rotates to enable the curved trapezoidal channel 9 to rotate, so that the communication surface between the curved trapezoidal channel 9 and the gas channel 3 is changed, the flow passing through the gas channel 3 is changed, the size of the valve can be regulated in a step mode through the special structure of the curved trapezoidal channel 9, and the purpose that the gas quantity is accurately controlled in a linear mode is achieved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions on some technical features, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a smart volume governing valve of combustible gas, includes the valve body, its characterized in that: the inside cavity that is equipped with of valve body, the cavity is including installation passageway and gas channel, installation passageway and gas channel communicate each other, are the cross and distribute, installation passageway internally mounted has the case subassembly, case subassembly upper end stretches out installation passageway and connects adjustment handle, installation passageway bottom is equipped with the shrouding, the valve body is connected to the shrouding, the valve body top is equipped with the mounting groove, mounting groove internally mounted has the calibrated scale, the calibrated scale is passed to case subassembly upper end, be equipped with the trapezoidal passageway of curved on the case subassembly, the trapezoidal passageway of curved is located inside the gas channel.

2. The precise combustible gas regulating valve according to claim 1, characterized in that: the valve core assembly comprises a valve core, the valve core is stepped cylindrical, the installation channel structure corresponds to the valve core, the top end of the valve core is connected with an adjusting handle, the curved trapezoidal channel is arranged at the lower end of the valve core and located inside the gas channel, the bottom end of the valve core penetrates through the gas channel and is located at the lower end of the installation channel, a limiting table is arranged at the upper end of the valve core, a limiting gasket is arranged on the limiting table, the diameter of the limiting gasket is larger than that of the upper end of the installation channel and used for supporting the valve core, a sealing groove is arranged below the limiting table, a sealing ring is arranged inside the sealing groove, and the sealing ring is in sealing contact with the inner wall of the installation channel.

3. The precise combustible gas regulating valve according to claim 1, characterized in that: the gas channel is communicated with the micro-regulation bypass, a micro-regulation assembly and a connecting pipeline are installed on the micro-regulation bypass, and the micro-regulation assembly is communicated with the connecting pipeline.

4. The precise combustible gas regulating valve according to claim 3, characterized in that: the micro-regulation bypass is provided with an installation channel I and a micro-regulation gas channel, the installation channel I is communicated with the micro-regulation gas channel, a micro-regulation assembly is installed inside the installation channel I and comprises a regulation valve core and a valve cover, the regulation valve core is installed inside the installation channel I, the lower end of the regulation valve core is provided with a valve core channel, the valve core channel is located inside the micro-regulation gas channel, the top of the installation channel I is connected with the valve cover, and the connecting pipeline is installed inside the micro-regulation gas channel.

5. The precise combustible gas regulating valve according to claim 1, characterized in that: the gas channel both ends place face is the flange face, gas channel's tip is located the center of flange face, gas channel both ends inner wall is equipped with the pipe thread, open at the flange face middle part has seal groove I, seal groove I is located gas channel tip outer lane.

6. The precise combustible gas regulating valve according to claim 1, characterized in that: and a bottom sealing ring is arranged between the sealing plate and the valve body and is matched with the sealing plate to be used for sealing and installing the bottom opening of the channel.

7. The precise quantity regulating valve for combustible gas according to claim 1, characterized in that: the valve core is provided with two sealing grooves, sealing rings are arranged in the two sealing grooves, and the sealing rings are in sealing contact with the inner wall of the installation channel.