WO2008131623A1

WO2008131623A1 - A share gas valve with dual-source select input

Info

Publication number: WO2008131623A1
Application number: PCT/CN2007/070147
Authority: WO
Inventors: William Xie
Original assignee: Zhongshan Leetron Gas Appliance Co., Ltd
Priority date: 2007-04-28
Filing date: 2007-06-21
Publication date: 2008-11-06
Also published as: CN101038044A; CN100436907C

Abstract

A share gas valve with dual-source select input includes a valve body (1) within which is provided with a valve core (3), wherein a, b gas source induction passages (11,12) are provided in the valve body and a gas source passage (31) is provided within the valve core, two chambers (311,312) are provided within the gas source passage, and a nozzle bore (32) is provided between the two chambers. A, b gas source inlet orifices (33,34) are provided at two sides of the valve core, wherein the a gas source inlet orifice (33) is communicated with one of the chambers (311) and the b gas source inlet orifice (34) is communicated with the other chamber (312). The present invention ensures structurally that any fitting is not needed when the gas sources are interchanged such that various gas sources can be used and steadily burned in the same burner so as to avoid unnecessary waste and reduce the chance of disastrous accident.

Description

Specification for a two gas sharing gas valve

[1] Technical field

[2] The present invention relates to a gas valve, and more particularly to a gas valve that can be shared by two gas sources.

[3] Background Art

[4] Because different gases have different characteristics, their parameters such as heat load, combustion potential, and white number are different. Therefore, different gases must use different valves to fully burn the gas to maximize the gas. Use the heat of gas. Since the traditional valve can only be used for one gas source, if the gas source is changed, the valve must be replaced again, or the internal parts of the valve must be replaced to stabilize the other gas source on the same burner. The purpose of burning, however, such operation will make the manufacturer and the user feel very inconvenient, and at the same time cause a great waste of resources. If the user replaces it by himself, there is a certain danger, which is easy to lead to the occurrence of a catastrophic accident. .

[5] Summary of the invention

[6] In order to overcome the deficiencies of the prior art, the present invention provides a gas valve that can be shared by two gas sources.

[7] The technical solution adopted by the present invention to solve the technical problem thereof is:

[8] A two-gas shared gas valve, comprising a valve body, a nozzle is mounted on the valve body, a valve core is mounted in the valve body, a rotating shaft is connected to the valve core, and a knob is mounted on one end of the rotating shaft, and the characteristic is A gas source passage is disposed in the valve core, one end of the air source passage is sealed, two chambers are disposed in the air source passage, and a nozzle hole is disposed between the two chambers; the valve body is provided with a b, gas source inlet passage, both sides of the valve core are provided with a, b gas source inlet holes, wherein a gas source inlet hole communicates with one of the chambers, and when a gas source is used, a gas The source air inlet can communicate with the air source inlet passage; b the air source air inlet communicates with the other chamber, and when the b air source is used, the b air source air inlet can communicate with the b air source intake passage .

[9] As an improvement of the above technical solution of the present invention, a micro-fire hole communicating with the chamber is disposed on the valve core adjacent to the air inlet hole of the air source, and the micro-fire hole is located at a center line of the air inlet hole of the air source. On the same circumferential surface; a micro-fire hole communicating with the chamber is disposed on the valve core beside the air inlet hole of the b source, and the micro-fire hole is located on the same circumferential surface as the center line of the air inlet hole of the b source.

[10] One end of the above air supply passage can be sealed by a sealing screw. [11] As a further improvement of the above technical solution of the present invention, the knob is provided with a knob ring, the knob ring is provided with a hole for the shaft to be inserted, and the knob ring is provided with a positioning boss, and the knob is provided with a positioning boss The matching positioning ribs can be radially disposed in the knob.

[12] The above positioning boss and the knob ring are directly integrated.

[13] The positioning boss may also be an arcuate block, and the inner surface of the knob ring is formed with two opposite arcuate bosses, and the arcuate blocks are respectively fixed on the two arcuate bosses by the fixing connecting members.

[14] The beneficial effects of the present invention are: The valve body of the present invention is provided with two air source intake passages, two kinds of air source intake holes are arranged on the valve core, and two air source intake passages on the valve body are The two gas source inlet holes on the valve core correspond one-to-one, so that the structure can completely overcome the shortcomings of the traditional valve when replacing the gas source, which guarantees different heat load, combustion potential and white number in the conversion. ......When the parameter air source is used, there is no need to replace any accessories. It only needs to be converted by the gas passage, that is, from the gas passage used in the last gas to the gas passage that is compatible with the gas to be used. The purpose of stabilizing combustion of different kinds of gas sources on the same burner is convenient and safe to use; at the same time, unnecessary waste is avoided, thereby greatly reducing the chance of catastrophic accidents, thereby better benefiting all human beings.

[15] BRIEF DESCRIPTION OF THE DRAWINGS

The invention is further described below in conjunction with the drawings and embodiments.

Figure 1 is a perspective exploded view of the present invention;

Figure 2 is a cross-sectional view of the present invention;

[19] Figure 3 is a cross-sectional view of the spool;

[20] Figure 4 is a view taken along the line A-A of Figure 3;

[21] Figure 5 is a B-B arrow view of Figure 3;

[22] Figure 6 is a cross-sectional view of the assembly of the knob and a knob ring;

[23] Figure 7 is a perspective exploded view of a second type of knob ring;

[24] Figure 8 is a perspective view of Figure 7;

[25] Figure 9 is a perspective view of the knob.

[26] Specific implementation

Referring to FIG. 1 and FIG. 2, a two-gas shared gas valve disclosed in the present invention includes a valve body 1, a nozzle 2 is mounted on the valve body 1, and a valve body 3 is mounted in the valve body 1, the valve body One end of 1 is fitted with a valve seat 6, and the valve seat 6 limits the spool 3 It is fixed in the valve body 1. A rotating shaft 4 is connected to the spool 3, and the rotating shaft 4 is connected to the valve core through a positioning pin 7. One end of the rotating shaft 4 is provided with a knob 5, and as shown in the figure, the valve body 1 is provided with a &, b air source inlet passage. 11, 12.

[28] Referring to Fig. 3, a gas source passage 31 is provided in the spool 3, and one end of the gas source passage 31 is sealed by a sealing screw 8. Two chambers 311, 312 are disposed in the air source passage 31, and a nozzle hole 32 is disposed between the two chambers 311, 312, and the two chambers 311, 312 communicate through the nozzle hole 32.

[29] A, b gas source inlet holes 33, 34 are disposed on both sides of the valve body 3, wherein a gas source inlet hole 33 communicates with the chamber 311, and when a gas source is used, a gas source enters The air hole 33 can communicate with the air source air inlet passage 11; b the air source air inlet hole 34 communicates with the chamber 312, and when the b air source is used, the b air source air inlet hole 34 and the b air source air inlet channel 1

2 Unicom _c

Referring to FIG. 4 and FIG. 5, the valve core 3 beside the air source inlet hole 33 is provided with a micro-fire hole 331 communicating with the chamber 311, the micro-fire hole 331 and the a gas source inlet hole 33. The center line is located on the same circumferential surface; the valve core 3 beside the b air source inlet hole 34 is provided with a micro-fire hole 341 communicating with the chamber 312, the center line of the micro-fire hole 341 and the b-source air inlet hole 34 Located on the same circumference.

Referring to FIG. 6 and FIG. 9, the knob 5 is provided with a knob ring 51. The knob ring 51 is fixed on the connecting plate 9 fixedly connected to the valve seat 6, and the knob ring 51 is provided with a hole 52 through which the rotating shaft 4 is inserted. The knob ring 51 is provided with a positioning boss 53. The positioning boss 53 shown in FIG. 6 is integrally formed with the knob ring 51. A positioning rib 54 is provided on the knob 5 to cooperate with the positioning boss 53. The positioning rib 54 is radially disposed in the knob 5.

[32] When using different gas sources, the rotation direction of the knob can adopt two forms of the same direction and the opposite direction.

[33] The knob adopts the same direction rotation type. When using a gas source, turn the knob to rotate to the left, the knob will drive the rotation axis to the left, and the rotation shaft will drive the positioning pin and the valve core to rotate to the left at the same time. The gas source is closed to open, and the gas is ejected through the nozzle hole inside the valve core, and then passes through the gas source nozzle hole to reach the inside of the burner for combustion. Within this process, the valve body can regulate the a gas source to ensure stable combustion of the burner.

[34] When it is necessary to convert to the b gas source, the knob must be pulled out from the shaft, and the rotation axis is rotated to the left by a certain angle, so that the positioning rib of the knob can pass over the positioning boss of the knob ring, thereby making the knob The positioning rib reaches the range of the leftward rotation direction of the other side of the positioning boss on the knob ring. When the rotary knob is turned to the left, the knob will rotate the rotation axis to the left, and the rotation shaft drives the positioning pin and the valve core to rotate to the left at the same time, so that the gas source is turned off from the closed state, and the gas is ejected through the inside of the valve core. Passing the air source nozzle hole to the internal combustion of the burner Burn. Within the scope of this process, the valve body can regulate the b gas source to ensure stable combustion of the burner.

[35] When the knob adopts the anisotropic rotation type, when using a gas source, turn the knob to the left, the knob will rotate the rotation axis to the left, and the rotation shaft will drive the positioning pin and the valve core to rotate to the left at the same time. The gas source is turned from off to on, and the gas is ejected through the nozzle hole inside the valve core, and then passed through the gas source nozzle hole to the inside of the burner for combustion. In the scope of this process, the valve body can adjust the a gas source to ensure stable combustion of the burner.

[36] If you want to use the b gas source, you need to pull the knob out of the shaft and rotate the shaft to the right by a certain angle, so that the positioning rib of the knob can pass over the positioning boss of the knob ring, so that the positioning rib of the knob Arrives in the range of the rightward rotation direction of the other side of the positioning boss on the knob ring. When the rotary knob is turned to the right, the knob will rotate the rotary shaft to the right, and the rotary shaft will drive the positioning pin and the spool to rotate to the right at the same time, so that the gas source is turned from off to open, and the gas is ejected through the inside of the spool. After the b gas source nozzle hole reaches the inside of the burner for combustion. Within this process, the valve body can regulate the b gas source to ensure stable combustion of the burner.

[37] FIG. 7 and FIG. 8 are schematic diagrams showing the structure of another knob ring. In the knob ring shown in the figure, the positioning boss 53 is formed by an arcuate block 55, and two opposite surfaces are formed on the inner surface of the knob ring 51. The arcuate bosses 56, 57, and the arcuate blocks 55 constituting the positioning bosses are respectively fixed to the two arcuate bosses 56, 57 by fixing connectors such as bolts or screws.

[38] When the gas valve using the knob ring is switched in the gas passage, it is only necessary to remove the curved block 55 from an arcuate boss 56, and then mount it on the other curved boss 57, and rotate the shaft Rotate at a certain angle and then use it with the knob to switch from the gas passage used in the last gas to the gas passage that is compatible with the gas to be used, so that different types of gas can be burned in the same unit without replacing any accessories. The purpose of stable combustion on the device.

[39] When using a or b gas source, the process of the invention is independent, that is, when a gas source is used, the inlet passage of the b gas source is cut off by the inner wall of the valve body and the outer wall of the valve core, respectively. Therefore, it is ensured that a gas source does not leak out from the inlet passage of the b gas source; similarly, when the b gas source is used, the inlet passage of the a gas source is cut by the inner wall of the valve body and the outer wall of the valve core, respectively. In order to ensure that b gas source will not leak out of the air inlet channel of a gas source.

[40] The invention can completely overcome the deficiencies of the conventional valve when replacing the gas source, and ensures that the gas source is replaced without replacing any accessories, and the use is convenient and safe; and unnecessary waste is avoided. Thereby greatly reducing the chance of catastrophic accidents, so as to better benefit all mankind.

Claims

Claim

A two-gas shared gas valve includes a valve body (1), a valve nozzle (2) is mounted on the valve body (1), and a valve core (3) is installed in the valve body (1), and the valve core (3) A rotating shaft (4) is connected to the upper end, and a knob (5) is mounted at one end of the rotating shaft (4), wherein the valve core (3) is provided with a gas source passage (31), and the air source passage (31) One end is sealed, two chambers (311, 312) are disposed in the gas source passage (31), and a nozzle hole (32) is disposed between the two chambers (311, 312); the valve body (1) is arranged There are &, b gas source inlet passages (11, 12), and a and b air source inlet holes (33, 3 4) are arranged on both sides of the valve core (3), wherein a gas source air inlet hole (33) communicating with the chamber (311), and when a gas source is used, a gas source inlet hole (33) can communicate with a gas source inlet passage (11); b gas source inlet hole (34) Communicating with the chamber (312), and when the b gas source is used, the b source inlet (34) can communicate with the b source inlet passage (12).

A two-gas shared gas valve according to claim 1, characterized in that the valve core (3) beside the air source inlet hole (33) is provided with a micro-fire hole communicating with the chamber (311) ( 33 1), the micro-fire hole (331) and the center line of the a gas source inlet hole (33) are on the same circumferential surface; the valve core (3) beside the b gas source inlet hole (34) is provided with The micro-fire vent (341), the micro-fire vent (341), and the center line of the b-source air inlet (34), which are in communication with the chamber (312), are located on the same circumferential surface.

A two-gas shared gas valve according to claim 1, wherein one end of said gas source passage (31) is sealed by a sealing screw (8).

A two-gas shared gas valve according to claim 1, wherein the knob (5) is provided with a knob ring (51), and the knob ring (51) is provided with a hole (52) through which the shaft (4) is inserted. The knob ring (51) is provided with a positioning boss (53), and the knob (5) is provided with a positioning rib (54) matched with the positioning boss (53).

A two-gas shared gas valve according to claim 4, wherein said positioning boss (53) is integrally formed integrally with the knob ring (51).

A two-gas shared gas valve according to claim 4, wherein said positioning boss (53) is an arcuate block (55), and the inner surface of said knob ring (51) is formed with two opposite sides. The arcuate bosses (56) are fixed to the two arcuate bosses (56, 57) by fixing connectors.

A two-gas shared gas valve according to claim 4 or 5 or 6, wherein said positioning rib (54) is radially disposed within the knob (5).