CN114483992A - Liquefied gas and natural gas change-over valve - Google Patents
Liquefied gas and natural gas change-over valve Download PDFInfo
- Publication number
- CN114483992A CN114483992A CN202210158745.5A CN202210158745A CN114483992A CN 114483992 A CN114483992 A CN 114483992A CN 202210158745 A CN202210158745 A CN 202210158745A CN 114483992 A CN114483992 A CN 114483992A
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- China
- Prior art keywords
- valve
- air inlet
- valve core
- inlet hole
- conversion
- Prior art date
- 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.)
- Granted
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000007789 gas Substances 0.000 title claims abstract description 38
- 239000003345 natural gas Substances 0.000 title claims abstract description 25
- 238000006243 chemical reaction Methods 0.000 claims abstract description 56
- 230000000087 stabilizing effect Effects 0.000 description 6
- 206010021143 Hypoxia Diseases 0.000 description 4
- 230000004075 alteration Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
- F16K5/0207—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor with special plug arrangement, e.g. special shape or built in means
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/02—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having conical surfaces; Packings therefor
- F16K5/0214—Plug channel at 90 degrees to the inlet
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/10—Means for additional adjustment of the rate of flow
- F16K5/103—Means for additional adjustment of the rate of flow specially adapted for gas valves
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/12—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A liquefied gas and natural gas change-over valve comprises a valve body, a valve cover, a valve rod, a return spring, a valve core and a change-over switch valve core, wherein the valve core is in running fit with a valve core cavity; the conversion switch valve core and the conversion valve core cavity are matched to control the on-off and conversion of the auxiliary channel; the secondary channel is closed and is in a liquefied gas state; the secondary channel is communicated and is in a natural gas state. The shape of the first air inlet hole, the arrangement of the conversion valve core cavity, the conversion switch valve core, the main channel and the auxiliary channel reduce components and realize conversion of two gases, and only the conversion switch valve core needs to be rotated during conversion, so that the operation is convenient.
Description
Technical Field
The invention relates to a device for a gas appliance, in particular to a liquefied gas and natural gas conversion valve.
Background
In the prior art, Chinese patent No. 201620818770.1 discloses a mechanical linkage type dual-fuel gas warmer, which comprises a pressure stabilizing valve, a temperature control valve, an oxygen deficiency protection device and a gas burner, wherein the pressure stabilizing valve is respectively provided with a first gas source pressure stabilizing valve and a second gas source pressure stabilizing valve, and the oxygen deficiency protection device is divided into a first oxygen deficiency protection device and a second oxygen deficiency protection device; the mechanical linkage conversion device comprises an air source conversion valve and an air source cut-off valve, and the air source conversion valve is linked with the air source cut-off valve; the first gas source pressure stabilizing valve is connected with the temperature control valve through a gas source cut-off valve, and the second gas source pressure stabilizing valve is connected and communicated with the temperature control valve through a gas guide pipe; the air outlet end of the temperature control valve is communicated with the air inlet end of the air source change-over valve, and the first air source air outlet end and the second air source air outlet end of the air source change-over valve are matched with the burner; the first and second oxygen-poor protection devices are respectively connected with the constant open fire outlet of the temperature control valve through the air source cut-off valve. There are problems in that: the structure is complex and the cost is high;
and the second gas valve comprises a valve body, a valve cover, a valve rod, a return spring and a valve core. There are problems in that: when natural gas and liquefaction are converted, the mode of changing the nozzle is realized, and the nozzle is changed inconveniently in the using process of a consumer.
Disclosure of Invention
The purpose of the invention is: provides a liquefied gas and natural gas conversion valve which has the characteristics of simple structure and convenient operation.
The invention is realized by the following steps: a liquefied gas and natural gas change-over valve, its special character lies in: it comprises a valve body, a valve cover, a valve rod, a return spring, a valve core and a change-over switch valve core,
the valve body comprises a valve core cavity, an air outlet cavity arranged at the end part of the valve core cavity, an air inlet joint, a main channel and an auxiliary channel which are arranged in the air inlet joint, and a conversion valve core cavity which is arranged on the air inlet joint and extends into the auxiliary channel,
a valve rod channel is arranged on the valve cover;
the valve core comprises an accommodating cavity, an air inlet and outlet cavity, a first air inlet hole, a first main air inlet hole, a second main air inlet hole, a first auxiliary air inlet hole and a second auxiliary air inlet hole; the first main air inlet hole and the second main air inlet hole are in an arc shape, and the first auxiliary air inlet hole and the second auxiliary air inlet hole are in an arc shape; the accommodating cavity is provided with a guide driving groove;
the valve core is in running fit with the valve core cavity, the valve cover is buckled with the valve core cavity, the valve rod is in running fit with the valve rod channel, the pin body on the valve rod is in sliding fit with the guide driving groove, and the reset spring is matched with the end part of the valve rod and the closed end of the accommodating cavity; the conversion valve core is matched with the conversion valve core cavity to control the on-off and conversion of the auxiliary channel;
the secondary channel is closed and is in a liquefied gas state; the secondary channel is communicated and is in a natural gas state.
The liquefied gas and natural gas conversion valve is characterized in that: the first air inlet hole is arranged along the length direction of the valve core and comprises a rectangular part positioned in the middle and semi-circular arc parts positioned at two ends;
the first air inlet hole, the first main air inlet hole, the second main air inlet hole, the first auxiliary air inlet hole and the second auxiliary air inlet hole are sequentially arranged in the circumferential direction.
The liquefied gas and natural gas conversion valve is characterized in that: the conversion valve core cavity is circular, and the diameter of the conversion valve core cavity is larger than that of the auxiliary channel;
the conversion valve core is cylindrical, and is provided with an air guide hole along the diameter line;
the diverter valve core is sealed with the diverter valve core cavity.
The liquefied gas and natural gas conversion valve is characterized in that: the end part of the conversion valve core is provided with a straight screwdriver groove.
The liquefied gas and natural gas conversion valve is characterized in that: a valve rod channel of the valve cover is provided with a positioning groove, and the valve rod is provided with two clamp spring grooves;
also comprises a micro switch and a pressure plate,
the pressing plate comprises a circular seat plate, a horizontal positioning plate and a driving pressing plate, and a rotating hole is formed in the circular seat plate;
the microswitch is fixed on the valve cover, the circular seat plate is in running fit with the valve rod, the clamp spring is embedded in the clamp spring groove and matched with the circular seat plate, and the horizontal positioning plate is embedded in the positioning groove.
According to the liquefied gas and natural gas conversion valve, the shape of the first air inlet hole, the conversion valve core cavity, the conversion switch valve core, the main channel and the auxiliary channel are arranged, so that components are reduced, conversion of two gases is realized, only the conversion switch valve core needs to be rotated during conversion, and the operation is convenient.
Drawings
Fig. 1 is a cross-sectional view of the present invention.
Fig. 2 is a view a-a of fig. 1.
Fig. 3 is a view B-B of fig. 1.
Fig. 4 is a view C-C of fig. 1.
Fig. 5 is one of perspective views of the present invention.
Fig. 6 is a second perspective view of the present invention.
Fig. 7 is one of exploded perspective views of the present invention.
Fig. 8 is a second exploded perspective view of the present invention.
Fig. 9 is a front view of the valve cartridge of the present invention.
Fig. 10 is a perspective cross-sectional view of the valve body of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1, the liquefied gas and natural gas conversion valve comprises a valve body 1, a valve cover 2, a valve rod 3, a return spring 4, a valve core 5 and a conversion switch valve core 6,
the valve body 1 comprises a valve core cavity 11, an air outlet cavity 12 arranged at the end part of the valve core cavity, an air inlet joint 13, a main channel 14 and an auxiliary channel 15 arranged in the air inlet joint, and a conversion valve core cavity 16 arranged on the air inlet joint and extending into the auxiliary channel 15,
the valve cover 2 is provided with a valve rod channel 21;
the valve core 5 comprises an accommodating cavity 51, an air inlet and outlet cavity 52, a first air inlet hole 53, a first main air inlet hole 541, a second main air inlet hole 542, a first auxiliary air inlet hole 551 and a second auxiliary air inlet hole 552; the first and second main intake holes 541 and 542 are in a circular arc shape, and the first and second sub-intake holes 551 and 552 are in a circular arc shape; the accommodating cavity 51 is provided with a guide driving groove 511;
the valve core 5 is in running fit with the valve core cavity 11, the valve cover 2 is buckled with the valve core cavity 11, the valve rod 3 is in running fit with the valve rod channel 21, the pin body 31 on the valve rod 3 is in sliding fit with the guide driving groove 511, and the return spring 4 is matched with the end part of the valve rod 3 and the closed end of the accommodating cavity 51; the change-over switch valve core 16 and the change-over valve core cavity 16 are matched to control the on-off of the auxiliary channel 15, so that the conversion of natural gas and liquefied gas is realized;
the secondary channel 15 is closed, in the liquefied gas state; the sub-passage 15 is open and is in a natural gas state.
Compared with the background technology (I), the invention simplifies the structure and reduces the cost; compared with the background technology (II), the auxiliary channel, the conversion valve core cavity and the conversion valve core are added, and two holes are additionally arranged on the valve core, so that the conversion is convenient.
The first air inlet 53 is arranged along the length direction of the valve core 5, the first air inlet 53 comprises a rectangular part positioned in the middle and semi-circular arc parts positioned at two ends, namely the first air inlet 53 has a certain length;
the first intake holes 53, the first and second main intake holes 541 and 542, and the first and second sub-intake holes 551 and 552 are sequentially arranged in the circumferential direction; the first and second main intake holes 541 and 542 axially correspond to the first and second sub-intake holes 551 and 552.
The conversion valve core cavity 16 is circular, and the diameter of the conversion valve core cavity 16 is larger than that of the auxiliary channel 15;
the conversion valve core 6 is cylindrical, and an air guide hole 61 along the diameter line is formed in the conversion valve core 6;
the conversion valve core 6 is sealed with the conversion valve core cavity 16;
the end of the conversion valve core 6 is provided with a straight thread screw groove 62.
As a further improvement of the invention: a positioning groove 22 is arranged on a valve rod channel 21 of the valve cover 2, and the valve rod 3 is provided with two clamp spring grooves (not marked in the figure);
a micro switch 7 and a pressure plate 8 are also included,
the pressing plate 8 comprises a circular base plate 81, a horizontal positioning plate 82 and a driving pressing plate 83, and a rotating hole is formed in the circular base plate 81;
the microswitch 7 is fixed on the valve cover 2, the round seat plate 81 is matched with the valve rod 3 in a rotating mode, the clamp spring is embedded in the clamp spring groove and matched with the round seat plate 81, the round seat plate 81 is kept on the valve rod 3, and the horizontal positioning plate 82 is embedded in the positioning groove 22 and matched in a sliding mode.
Fig. 1, 2, 3 and 4 show the present invention in a liquefied gas state, with the switch valve cartridge 6 being opened to disconnect the sub-passage 15;
as shown in fig. 5, when the valve rod 3 is pressed, the positioning slot 22 of the horizontal positioning plate 82 of the pressure plate 8 moves, and the driving pressure plate 83 is matched with the button of the microswitch 7; the pin body 31 moves in the guide driving groove 511; the valve rod 3 is rotated, the valve core 5 rotates, the first air inlet hole 53 communicates the air inlet and outlet cavity 52 of the valve core 5 with the main channel 14, the valve core continues to rotate, and the first main air inlet hole 541 is communicated with the main channel 14; the valve rod 3 is further rotated, the second main air inlet hole 542 is communicated with the main channel 14, and the gas quantity is gradually reduced; is in a liquefied gas state;
in the state shown in fig. 1 and 2, the switching valve core 6 is rotated by 90 degrees, and the air vent 61 conducts the auxiliary channel 15;
the valve rod 3 is rotated, the valve core 5 rotates, the first air inlet hole 53 communicates the air inlet and outlet cavity 52 of the valve core 5 with the main channel 14 and the auxiliary channel 15, the valve core continues to rotate, the first main air inlet hole 541 is communicated with the main channel 14, and the first auxiliary air inlet hole 551 is communicated with the auxiliary channel 15; the valve rod 3 is further rotated, the second main air inlet hole 542 is communicated with the main channel 14, the second auxiliary air inlet hole 552 is communicated with the auxiliary channel, and the gas quantity is gradually reduced; is in a natural gas state;
the natural gas and liquefied gas state conversion can be realized by only rotating the conversion valve core 6 by 90 degrees, and the conversion is convenient.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (5)
1. A liquefied gas and natural gas change-over valve which characterized in that: it comprises a valve body, a valve cover, a valve rod, a return spring, a valve core and a change-over switch valve core,
the valve body comprises a valve core cavity, an air outlet cavity arranged at the end part of the valve core cavity, an air inlet joint, a main channel and an auxiliary channel which are arranged in the air inlet joint, and a conversion valve core cavity which is arranged on the air inlet joint and extends into the auxiliary channel,
a valve rod channel is arranged on the valve cover;
the valve core comprises an accommodating cavity, an air inlet and outlet cavity, a first air inlet hole, a first main air inlet hole, a second main air inlet hole, a first auxiliary air inlet hole and a second auxiliary air inlet hole; the first main air inlet hole and the second main air inlet hole are in an arc shape, and the first auxiliary air inlet hole and the second auxiliary air inlet hole are in an arc shape; the accommodating cavity is provided with a guide driving groove;
the valve core is in running fit with the valve core cavity, the valve cover is buckled with the valve core cavity, the valve rod is in running fit with the valve rod channel, the pin body on the valve rod is in sliding fit with the guide driving groove, and the reset spring is matched with the end part of the valve rod and the closed end of the accommodating cavity; the conversion switch valve core and the conversion valve core cavity are matched to control the on-off and conversion of the auxiliary channel;
the secondary channel is closed and is in a liquefied gas state; the secondary channel is communicated and is in a natural gas state.
2. A liquefied gas and natural gas changeover valve as claimed in claim 1, wherein: the first air inlet hole is arranged along the length direction of the valve core and comprises a rectangular part positioned in the middle and semi-circular arc parts positioned at two ends;
the first air inlet hole, the first main air inlet hole, the second main air inlet hole, the first auxiliary air inlet hole and the second auxiliary air inlet hole are sequentially arranged in the circumferential direction.
3. A liquefied gas and natural gas changeover valve as claimed in claim 1, wherein: the conversion valve core cavity is circular, and the diameter of the conversion valve core cavity is larger than that of the auxiliary channel;
the conversion valve core is cylindrical, and is provided with an air guide hole along the diameter line;
the diverter valve core is sealed with the diverter valve core cavity.
4. A liquefied gas and natural gas changeover valve as claimed in claim 3, wherein: the end part of the conversion valve core is provided with a straight screwdriver groove.
5. A liquefied gas and natural gas changeover valve as claimed in claim 1, 2, 3 or 4, wherein: a valve rod channel of the valve cover is provided with a positioning groove, and the valve rod is provided with two clamp spring grooves;
also comprises a micro switch and a pressure plate,
the pressing plate comprises a circular seat plate, a horizontal positioning plate and a driving pressing plate, and a rotating hole is formed in the circular seat plate;
the microswitch is fixed on the valve cover, the circular seat plate is in running fit with the valve rod, the clamp spring is embedded with the clamp spring groove and is matched with the circular seat plate, and the horizontal positioning plate is embedded with the positioning groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210158745.5A CN114483992B (en) | 2022-02-21 | 2022-02-21 | Liquefied gas and natural gas conversion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210158745.5A CN114483992B (en) | 2022-02-21 | 2022-02-21 | Liquefied gas and natural gas conversion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114483992A true CN114483992A (en) | 2022-05-13 |
| CN114483992B CN114483992B (en) | 2023-09-22 |
Family
ID=81482770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210158745.5A Active CN114483992B (en) | 2022-02-21 | 2022-02-21 | Liquefied gas and natural gas conversion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114483992B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363549A (en) * | 2008-10-09 | 2009-02-11 | 南京斯奥欣电气具有限公司 | Double-source gas combined valve |
| US20110061752A1 (en) * | 2009-09-02 | 2011-03-17 | Gentec (Shanghai) Corporation | Dual gas source changeover valve and control cabinet and gas supply system |
| CN213393671U (en) * | 2020-07-07 | 2021-06-08 | 广东聚德阀门科技有限公司 | Integrated air source conversion valve |
| CN214617990U (en) * | 2021-02-07 | 2021-11-05 | 中山利特隆瓦斯器材有限公司 | Air valve and stove suitable for multiple air sources |
-
2022
- 2022-02-21 CN CN202210158745.5A patent/CN114483992B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101363549A (en) * | 2008-10-09 | 2009-02-11 | 南京斯奥欣电气具有限公司 | Double-source gas combined valve |
| US20110061752A1 (en) * | 2009-09-02 | 2011-03-17 | Gentec (Shanghai) Corporation | Dual gas source changeover valve and control cabinet and gas supply system |
| CN213393671U (en) * | 2020-07-07 | 2021-06-08 | 广东聚德阀门科技有限公司 | Integrated air source conversion valve |
| CN214617990U (en) * | 2021-02-07 | 2021-11-05 | 中山利特隆瓦斯器材有限公司 | Air valve and stove suitable for multiple air sources |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114483992B (en) | 2023-09-22 |
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