CN215110699U - Gas regulating valve and combustion device - Google Patents

Abstract

The utility model relates to a gas regulating valve and a combustion device, when the gas regulating valve and the combustion device need to work in a small fire combustion state, the first electromagnetic valve controls the first movable iron core to move to open the first air vent, external fuel gas enters the first cavity through the air inlet and enters the first air channel through the first air vent, the second electromagnetic valve controls the second movable iron core to move to open the opening of the first concave part, the gas in the first air passage enters the second cavity and can enter the fourth cavity through the first concave part and the air hole, the gas in the fourth cavity is output outwards through the inner ring fire air supply opening, meanwhile, the first valve component seals the second vent, the second valve component seals the third vent, the outer ring fire air supply port does not have the gas supply like this, and only the gas of second cavity passes through the gas pocket and enters into the fourth cavity, can realize the accurate control of little fire burning, and little fire combustion effect is comparatively stable.

Description

Gas regulating valve and combustion device

Technical Field

The utility model relates to a burner technical field especially relates to a gas governing valve and burner.

Background

With the improvement of living standards and the rapid development and progress of science and technology, combustion devices are beginning to appear in the middle of the life of people in a large range. The conventional combustion device includes a stove, a gas-fired water heating device or a boiler, etc., which are not described herein in detail, and the description is mainly given by taking the combustion device as an example of the stove.

The control accuracy of the proportional valve of the traditional cooker is not high, and the main reason is that the opening degree of the valve required in the minimum fire gear is small, and the proportional valve cannot be accurately controlled. The gas regulating valve of the existing kitchen range on the market usually comprises a main stop valve arranged on a main path, and the main stop valve is used for controlling the on-off of the gas flow on the main path. The gas governing valve still includes outer loop stop valve and proportional valve, during the cooking utensils work, if need adjust minimum fire gear, then keep opening the main stop valve to and close the outer loop stop valve, realize the gear of minimum fire through adjusting the proportional valve aperture, and the proportional valve aperture control accuracy is not high when adjusting the gas flow of minim scope, thereby can not accurate control.

SUMMERY OF THE UTILITY MODEL

The utility model provides a first technical problem provide a gas governing valve, it can realize accurate control to the gas flow of minim effectively.

The second technical problem solved by the present invention is to provide a combustion apparatus, which can effectively realize accurate control of small-range gas flow.

The first technical problem is solved by the following technical scheme:

a gas regulating valve, comprising: the gas-liquid separator comprises a valve body, wherein a first air passage, a first chamber, a second chamber, a third chamber and a fourth chamber are arranged in the valve body, and a first air vent communicated with the first air passage, a first mounting opening opposite to the first air vent and a gas inlet used for introducing gas are arranged on the wall of the first chamber; the second cavity is communicated with the first air passage, a first concave part is arranged on the cavity wall of the second cavity, an air hole communicated with the fourth cavity is arranged on the bottom wall of the first concave part, and a second mounting opening opposite to the first concave part is also arranged on the cavity wall of the second cavity; a second vent communicated with the first air passage and a third vent communicated with the fourth chamber are arranged on the wall of the third chamber, an outer ring fire air supply port is also arranged on the wall of the third chamber, and an inner ring fire air supply port is arranged on the wall of the fourth chamber;

the first electromagnetic valve is arranged on the valve body and comprises a first movable iron core, the first movable iron core extends into the first cavity through the first mounting opening and can move in the first cavity, and the first movable iron core is used for sealing or opening the first air vent;

the second electromagnetic valve is arranged on the valve body and comprises a second movable iron core, the second movable iron core extends into the second cavity through the second mounting opening and can move in the second cavity, and the second movable iron core is used for sealing or opening the opening of the first concave part;

the third electromagnetic valve is arranged on the valve body and used for driving the first valve assembly to move in the first air channel, the first valve assembly is used for sealing or opening the second air port, the first valve assembly can drive the second valve assembly to move when moving, the second valve assembly can move in the third cavity, the second valve assembly is used for sealing or opening the third air port, the second valve assembly seals the third air port when sealing the second air port, and the first valve assembly synchronously drives the second valve assembly to open the third air port when opening the second air port.

Gas governing valve, compare produced beneficial effect with the background art:

when the gas regulating valve needs to work in a big fire state, the first electromagnetic valve controls the first movable iron core to move to open the first air vent, external gas enters the first cavity through the air inlet and enters the first air channel from the first air vent, the second electromagnetic valve controls the second movable iron core to move to open the mouth of the first concave part, the gas in the first air channel enters the second cavity and can enter the fourth cavity through the first concave part and the air holes, the gas in the fourth cavity is output outwards through the inner ring fire air supply port, meanwhile, the third electromagnetic valve drives the first valve assembly to open the second air vent, the first valve assembly drives the second valve assembly to move, the second valve assembly synchronously opens the third air vent, so that the gas in the first air channel can enter the third cavity through the second air vent, and a part of the gas entering the third cavity is output outwards through the outer ring fire air supply port, the other part of the gas entering the third chamber enters the fourth chamber through the third vent hole, and the gas in the fourth chamber is output outwards through the inner ring fire gas supply hole; when the gas-fired boiler needs to work in a small-fire combustion state, the first electromagnetic valve controls the first movable iron core to move to open the first air vent, external gas enters the first cavity through the air inlet and enters the first air passage through the first air vent, the second electromagnetic valve controls the second movable iron core to move to open the opening part of the first concave part, the gas in the first air passage enters the second cavity and can enter the fourth cavity through the first concave part and the air holes, the gas in the fourth cavity is output outwards through the inner ring fire air supply port, meanwhile, the first air valve assembly seals the second air vent, the second air valve assembly seals the third air vent, namely, the gas in the first air passage cannot enter the third cavity through the second air vent, so that no gas is supplied from the outer ring fire air supply port, only the gas in the second cavity enters the fourth cavity through the air hole, and the gas supplied to the inner ring fire air supply port is small due to the small aperture of the air hole, work in the state of little fire burning this moment promptly, owing to adopt the gas pocket to control the gas volume that enters into inner ring fire air supply mouth moreover, can realize the accurate control of little fire burning, little fire burning effect is comparatively stable.

In one embodiment, the first solenoid valve further includes a first frame, a first spring, and a first coil mounted on the first frame and wound outside the first movable core, the first movable core is movably mounted on the first frame, and the first movable core is connected to the first frame through the first spring; a first sealing cap is arranged at the end part of the first movable iron core, and the first movable iron core seals the first air vent through the first sealing cap; the second electromagnetic valve also comprises a second rack, a second spring and a second coil which is arranged on the second rack and wound outside the second movable iron core, the second movable iron core is movably arranged on the second rack, and the second movable iron core is connected with the second rack through the second spring; and a second sealing cap is arranged at the end part of the second movable iron core, and the mouth part of the first concave part is sealed by the second movable iron core through the second sealing cap.

In one embodiment, the gas regulating valve further comprises a first sealing ring which is arranged on the valve body and circumferentially arranged around the first mounting opening, and the end face of one end of the first frame, which is arranged on the valve body, is in close contact fit with the first sealing ring; the gas governing valve is still including set up in on the valve body duplex winding the second sealing washer that second installing port circumference set up, the dress is located in the second frame the one end terminal surface of valve body with the cooperation of second sealing washer in close contact with.

In one embodiment, the third electromagnet comprises a third frame arranged on the valve body, a fixed iron core fixedly arranged on the third frame, and a third coil arranged on the third frame and wound outside the fixed iron core; the first air valve assembly comprises a permanent magnet rod arranged corresponding to the fixed iron core, a first sealing body arranged on the outer wall of one end of the permanent magnet rod in a winding mode, and a third spring arranged on the valve body and used for enabling the first sealing body to abut against and seal the second air vent; when the fixed iron core works, the permanent magnet rod can move to drive the first sealing body to open the second vent.

In one embodiment, the first end of the permanent magnet rod is arranged opposite to the fixed iron core at a distance, and the second end of the permanent magnet rod is provided with the first sealing body and extends into the third cavity; the outer wall surface of the first sealing body is a conical surface with the outer diameter gradually increased, and the conical surface is used for being in sealing collision with the opening edge of the second vent.

In one embodiment, a third mounting port communicated with the first air passage is arranged on the valve body, and the third mounting port is opposite to the second vent; the third frame is including being used for installing in on the valve body and seal the end panel of third installing port, be equipped with on the end panel and dodge the second concave part of permanent magnet pole first end.

In one embodiment, the first valve assembly further comprises an elastic sealing cover mounted on the first end of the permanent magnet rod, and the elastic sealing cover seals the third mounting opening.

In one embodiment, the wall of the third chamber is provided with a fourth mounting opening opposite to the second vent opening, and a first mounting cover capable of detachably blocking the fourth mounting opening, and the third vent opening is arranged on the first mounting cover; a third sealing ring is arranged between the first mounting cover and the opening edge of the fourth mounting opening; the cavity wall of the fourth cavity is provided with a fifth mounting opening and a second mounting cover which is detachably arranged on the valve body and blocks the fifth mounting opening; and a fourth sealing ring is arranged between the second mounting cover and the opening edge of the fifth mounting opening.

In one embodiment, the second valve assembly comprises a movable rod, a second sealing body and a fourth spring sleeved on the movable rod; the first end of the movable rod is in clearance fit with the end face of the first valve assembly or is connected with the end face of the first valve assembly in a clearance fit mode, the second sealing body is wound on the outer wall of the second end of the movable rod and used for sealing or opening the third air vent, one end of the fourth spring is abutted to the first end of the movable rod, and the other end of the fourth spring is abutted to the wall of the third cavity.

The second technical problem is solved by the following technical solutions:

a combustion device comprises the gas regulating valve.

Burner, compare produced beneficial effect with the background art:

in the combustion device, when the combustion device needs to work in a big fire state, the first electromagnetic valve controls the first movable iron core to move to open the first air vent, external gas enters the first cavity through the air inlet and enters the first air channel from the first air vent, the second electromagnetic valve controls the second movable iron core to move to open the mouth of the first concave part, the gas in the first air channel enters the second cavity and can enter the fourth cavity through the first concave part and the air holes, the gas in the fourth cavity is output outwards through the inner ring fire air supply port, meanwhile, the third electromagnetic valve drives the first valve assembly to open the second air vent, the first valve assembly drives the second valve assembly to move, the second valve assembly synchronously opens the third air vent, so that the gas in the first air channel can enter the third cavity through the second air vent, and part of the gas entering the third cavity is output outwards through the outer ring fire air supply port, the other part of the gas entering the third chamber enters the fourth chamber through the third vent hole, and the gas in the fourth chamber is output outwards through the inner ring fire gas supply hole; when the gas-fired boiler needs to work in a small-fire combustion state, the first electromagnetic valve controls the first movable iron core to move to open the first air vent, external gas enters the first cavity through the air inlet and enters the first air passage through the first air vent, the second electromagnetic valve controls the second movable iron core to move to open the opening part of the first concave part, the gas in the first air passage enters the second cavity and can enter the fourth cavity through the first concave part and the air holes, the gas in the fourth cavity is output outwards through the inner ring fire air supply port, meanwhile, the first air valve assembly seals the second air vent, the second air valve assembly seals the third air vent, namely, the gas in the first air passage cannot enter the third cavity through the second air vent, so that no gas is supplied from the outer ring fire air supply port, only the gas in the second cavity enters the fourth cavity through the air hole, and the gas supplied to the inner ring fire air supply port is small due to the small aperture of the air hole, work in the state of little fire burning this moment promptly, owing to adopt the gas pocket to control the gas volume that enters into inner ring fire air supply mouth moreover, can realize the accurate control of little fire burning, little fire burning effect is comparatively stable.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a view structural diagram of a gas regulating valve according to an embodiment of the present invention;

fig. 2 is an exploded view of one of the viewing angles of the gas regulating valve according to an embodiment of the present invention;

fig. 3 is an exploded view of another view angle of the gas regulating valve according to an embodiment of the present invention;

fig. 4 is a schematic view of an internal structure of a gas regulating valve according to an embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of a gas regulating valve according to an embodiment of the present invention in a closed state;

FIG. 6 is an enlarged schematic view of FIG. 5 at P;

fig. 7 is a schematic cross-sectional view of a gas regulating valve according to an embodiment of the present invention in a big fire operating state;

fig. 8 is a schematic cross-sectional view of a gas regulating valve according to an embodiment of the present invention in a small fire operating state.

Reference numerals:

10. a valve body; 11. a first air passage; 12. a first chamber; 121. a first vent; 122. a first mounting port; 123. an air inlet; 13. a second chamber; 131. a first recess; 132. air holes; 133. a second mounting opening; 14. a third chamber; 141. a second vent; 142. a third vent; 143. an outer ring fire air supply port; 144. a fourth mounting port; 145. a first mounting cover; 15. a fourth chamber; 151. an inner ring fire air supply port; 152. a fifth mounting port; 153. a second mounting cover; 16. a third mounting port; 20. a first solenoid valve; 21. a first movable iron core; 22. a first frame; 23. a first spring; 24. a first coil; 25. a first sealing cap; 30. a second solenoid valve; 31. a second movable iron core; 32. a second frame; 33. a second spring; 34. a second coil; 35. a second sealing cap; 40. a third electromagnetic valve; 41. a third frame; 411. an end panel; 412. a second recess; 42. fixing the iron core; 43. a third coil; 50. a first valve assembly; 51. a permanent magnet bar; 52. a first sealing body; 53. a third spring; 54. an elastic sealing cover; 60. a second valve assembly; 61. a movable rod; 62. a second sealing body; 63. a fourth spring; 71. a first seal ring; 72. a second seal ring; 73. a third seal ring; 74. and a fourth seal ring.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1 to 3, fig. 1 shows one of them visual angle structure chart of the gas regulating valve of an embodiment of the present invention, fig. 2 shows an exploded structure chart of one of them visual angle of the gas regulating valve of an embodiment of the present invention, fig. 3 shows an exploded structure chart of another visual angle of the gas regulating valve of an embodiment of the present invention. An embodiment of the utility model provides a pair of gas regulating valve, gas regulating valve includes: the valve comprises a valve body 10, a first solenoid valve 20, a second solenoid valve 30, a third solenoid valve 40, a first valve assembly 50 and a second valve assembly 60.

The valve body 10 is provided with a first air passage 11, a first chamber 12, a second chamber 13, a third chamber 14 and a fourth chamber 15. The wall of the first chamber 12 is provided with a first vent 121 communicated with the first air passage 11, a first mounting port 122 opposite to the first vent 121, and an air inlet 123 for introducing gas. The second chamber 13 is communicated with the first air passage 11, and a first concave part 131 is arranged on the wall of the second chamber 13. An air hole 132 communicated with the fourth chamber 15 is arranged on the bottom wall of the first concave part 131, and a second mounting opening 133 opposite to the first concave part 131 is arranged on the chamber wall of the second chamber 13. The wall of the third chamber 14 is provided with a second vent 141 communicating with the first air passage 11 and a third vent 142 communicating with the fourth chamber 15. The third chamber 14 is also provided with an outer ring fire air supply port 143 on the wall thereof, and the fourth chamber 15 is provided with an inner ring fire air supply port 151 on the wall thereof.

The first solenoid valve 20 is installed on the valve body 10. The first solenoid valve 20 includes a first movable core 21, the first movable core 21 extends into the first chamber 12 through a first mounting opening 122 and is movable in the first chamber 12, and the first movable core 21 is used for sealing or opening the first vent 121.

The second solenoid valve 30 is installed on the valve body 10, the second solenoid valve 30 includes a second movable iron core 31, the second movable iron core 31 extends into the second chamber 13 through a second installation opening 133 and can move in the second chamber 13, and the second movable iron core 31 is used for sealing or opening the opening of the first recess 131.

The third solenoid valve 40 is installed on the valve body 10, the third solenoid valve 40 is used for driving the first valve assembly 50 to move in the first air passage 11, the first valve assembly 50 is used for sealing or opening the second vent 141, the first valve assembly 50 can drive the second valve assembly 60 to move when moving, the second valve assembly 60 can move in the third chamber 14, the second valve assembly 60 is used for sealing or opening the third vent 142, the second valve assembly 60 seals the third vent 142 when the first valve assembly 50 seals the second vent 141, and the second valve assembly 60 is driven to open the third vent 142 when the first valve assembly 50 opens the second vent 141.

The inner ring fire air supply port 151 is an inner ring fire cover for outputting gas to the combustion device, and the outer ring fire air supply port 143 is an outer ring fire cover for outputting gas to the combustion device.

It should be noted that the specific size of the air hole 132 may be set according to actual requirements, for example, the aperture of the air hole 132 may be set to 0.1mm, 0.2mm, 0.5mm, 0.8mm, and the like, and is not limited herein. When the aperture of the air hole 132 is set smaller, the amount of gas supplied to the inner ring fire supply port 151 is smaller, and the combustion power on the inner ring fire cover is smaller. In addition, the size of the aperture in the first air passage 11 is usually set to 4mm, 5mm, 8mm, 10mm, 20mm, etc. according to actual requirements, and is not limited herein. The inner diameter of the first air path 11 is larger than the pore diameter of the air hole 132.

Referring to fig. 5 to 8, fig. 5 is a schematic cross-sectional view of a gas regulating valve according to an embodiment of the present invention in a closed state; FIG. 6 shows an enlarged schematic view of FIG. 5 at P; fig. 7 is a schematic cross-sectional view illustrating a gas regulating valve according to an embodiment of the present invention in a big fire operating state; fig. 8 shows a schematic cross-sectional view of a gas regulating valve according to an embodiment of the present invention in a small fire operating state. When the gas regulating valve needs to work in a big fire state, the first electromagnetic valve 20 controls the first movable iron core 21 to move to open the first vent 121, the external gas enters the first chamber 12 through the gas inlet 123 and enters the first gas passage 11 through the first vent 121, the second electromagnetic valve 30 controls the second movable iron core 31 to move to open the mouth of the first concave portion 131, the gas in the first gas passage 11 enters the second chamber 13 and can enter the fourth chamber 15 through the first concave portion 131 and the gas hole 132, the gas in the fourth chamber 15 is output outwards through the inner ring fire supply port 151, meanwhile, the third electromagnetic valve 40 drives the first valve assembly 50 to open the second vent 141, the first valve assembly 50 drives the second valve assembly 60 to move, the second valve assembly 60 synchronously opens the third vent 142, so that the gas in the first gas passage 11 can enter the third chamber 14 through the second vent 141, a part of the gas introduced into the third chamber 14 is discharged to the outside through the outer ring fire gas supply port 143, another part of the gas introduced into the third chamber 14 is introduced into the fourth chamber 15 through the third vent hole 142, and the gas in the fourth chamber 15 is discharged to the outside through the inner ring fire gas supply port 151; when the gas turbine needs to work in a small-fire combustion state, the first electromagnetic valve 20 controls the first movable iron core 21 to move to open the first air vent 121, external gas enters the first chamber 12 through the air inlet 123 and enters the first air passage 11 through the first air vent 121, the second electromagnetic valve 30 controls the second movable iron core 31 to move to open the mouth of the first concave portion 131, gas in the first air passage 11 enters the second chamber 13 and can enter the fourth chamber 15 through the first concave portion 131 and the air holes 132, gas in the fourth chamber 15 is output outwards through the inner ring fire air supply port 151, meanwhile, the first valve assembly 50 seals the second air vent 141, the second valve assembly 60 seals the third air vent 142, namely gas in the first air passage 11 cannot enter the third chamber 14 through the second air vent 141, so that the outer ring fire air supply port 143 is not supplied with gas, and only gas in the second chamber 13 enters the fourth chamber 15 through the air holes 132, because the aperture of gas pocket 132 is less, the gas volume of supplying inner ring fire air supply port 151 is less, works in the state of little fire burning this moment promptly, owing to adopt gas pocket 132 to control the gas volume that enters into inner ring fire air supply port 151 moreover, can realize the accurate control of little fire burning, and little fire burning effect is comparatively stable.

Referring to fig. 2 to 5, fig. 4 is a schematic view showing an internal structure of a gas regulating valve according to an embodiment of the present invention. Further, the first solenoid valve 20 further includes a first frame 22, a first spring 23, and a first coil 24 mounted on the first frame 22 and wound outside the first movable core 21. The first movable iron core 21 is movably disposed on the first frame 22, and the first movable iron core 21 is connected to the first frame 22 through a first spring 23. The end of the first movable core 21 is provided with a first sealing cap 25, and the first movable core 21 seals the first vent 121 through the first sealing cap 25. In addition, the second electromagnetic valve 30 further includes a second frame 32, a second spring 33, and a second coil 34 mounted on the second frame 32 and wound outside the second movable core 31. The second movable core 31 is movably disposed on the second frame 32, and the second movable core 31 is connected to the second frame 32 through a second spring 33. A second seal cap 35 is provided at an end of the second movable core 31, and the second movable core 31 seals the opening of the first recess 131 with the second seal cap 35. So, just can corresponding control first movable iron core 21 move into first frame 22 when first coil 24 circular telegram inside and make first spring 23 compress, first movable iron core 21 drives first sealed cap 25 and opens first vent 121 this moment, first spring 23 resets and drives first movable iron core 21 and remove and make first sealed cap 25 seal first vent 121 when first coil 24 circular telegram, first movable iron core 21 seals first vent 121 through first sealed cap 25 when, the sealed effect of first vent 121 is better, can avoid the gas to enter into in first gas duct 11 through first vent 121. Similarly, when the second movable core 31 seals the opening of the first recess 131 with the second seal cap 35, the sealing effect of the opening of the first recess 131 is good, and the gas in the second chamber 13 can be prevented from entering the fourth chamber 15 through the first recess 131 and the air hole 132. Specifically, the first sealing cap 25 and the second sealing cap 35 are, for example, elastic caps, and the elastic caps are deformed by force so as to ensure the sealing performance of the first vent 121 and the second vent 141. Of course, the first sealing cap 25 and the second sealing cap 35 may be made of other materials, which are not limited herein.

Specifically, the first spring 23 is sleeved outside the first movable iron core 21, one end of the first spring 23 abuts against the first sealing cap 25, and the other end of the first spring 23 abuts against the end surface of the first frame 22. In addition, the second spring 33 is sleeved outside the second movable iron core 31, one end of the second spring 33 abuts against the second sealing cap 35, and the other end of the second spring 33 abuts against an end surface of the second frame 32.

Referring to fig. 5 to 8, in an embodiment, the gas regulating valve further includes a first sealing ring 71 disposed on the valve body 10 and circumferentially disposed around the first mounting opening 122, and an end surface of the first frame 22 mounted on one end of the valve body 10 is in close contact with the first sealing ring 71. The gas regulating valve further comprises a second sealing ring 72 which is arranged on the valve body 10 and circumferentially arranged around the second mounting opening 133, and the end face of one end of the valve body 10, which is arranged on the second frame 32, is in close contact with and matched with the second sealing ring 72. Thus, the first sealing ring 71 can ensure the sealing performance between the end surface of the first frame 22 and the first mounting opening 122, and prevent the fuel gas in the first chamber 12 from leaking outwards through the first mounting opening 122; the second sealing ring 72 can ensure the sealing performance between the end surface of the second frame 32 and the second mounting opening 133, and prevent the gas in the second chamber 13 from leaking outwards through the second mounting opening 133.

Referring to fig. 2, 4 and 5, the third electromagnet further includes a third frame 41 mounted on the valve body 10, a fixed iron core 42 fixedly mounted on the third frame 41, and a third coil 43 mounted on the third frame 41 and wound outside the fixed iron core 42. The first valve assembly 50 includes a permanent magnet rod 51 disposed corresponding to the fixed core 42, a first sealing body 52 disposed around an outer wall of one end of the permanent magnet rod 51, and a third spring 53 installed on the valve body 10 and adapted to make the first sealing body 52 abut against and seal the second vent 141. When the fixed iron core 42 works, the permanent magnet rod 51 can move to drive the first sealing body 52 to open the second air vent 141. Thus, when the third coil 43 is energized to operate, the fixed iron core 42 pushes the permanent magnet rod 51 through the magnetic force, the permanent magnet rod 51 correspondingly drives the first sealing body 52 to open the second vent 141, and when the second vent 141 is opened, the gas in the first air passage 11 can enter the third chamber 14 through the second vent 141. When the third coil 43 is not energized to work, the permanent magnet rod 51 can move under the action of the elastic restoring force of the third spring 53 to drive the first sealing body 52 to abut against and seal the second vent 141, and at this time, the gas in the first air passage 11 cannot enter the third chamber 14.

Specifically, the third spring 53 is disposed between the end surface of the permanent magnet rod 51 and the inner wall of the third chamber 14, and the third spring 53 is in a compressed state when the permanent magnet rod 51 correspondingly drives the first sealing body 52 to open the second vent 141. Of course, the third spring 53 may also be disposed inside the first air passage 11, one end of the third spring 53 is connected to the inner wall of the first air passage 11, the other end of the third spring 53 is connected to the end of the permanent magnet rod 51, and the permanent magnet rod 51 correspondingly drives the first sealing body 52 to open the second vent 141 while the third spring 53 is in a stretched state.

Referring to fig. 5 to 8, in one embodiment, a first end of the permanent magnet rod 51 is spaced opposite to the fixed core 42, and a second end of the permanent magnet rod 51 is provided with a first sealing body 52 and extends into the third chamber 14. The outer wall surface of the first sealing body 52 is a tapered surface having an outer diameter gradually increased, and the tapered surface is adapted to be in sealing contact with the rim of the second vent 141. Specifically, the first sealing body 52 is, for example, an elastic first sealing body 52. The tapered surface of the first sealing body 52 can be in sealing contact with the opening edge of the second vent 141, which is beneficial to achieve a better sealing effect between the first sealing body 52 and the second vent 141.

Referring to fig. 5 to 8, a third mounting opening 16 is formed in the valve body 10 and communicates with the first air passage 11. The third mounting port 16 is disposed opposite the second vent port 141. The third frame 41 includes an end plate 411 that is attached to the valve body 10 and seals the third attachment opening 16, and the end plate 411 is provided with a second recess 412 that avoids the first end of the permanent magnet rod 51. Therefore, the second end of the permanent magnet rod 51 is located in the third chamber 14, the first end of the permanent magnet rod 51 can enter the second concave part 412 through the first air passage 11, and the second concave part 412 has a function of avoiding the permanent magnet rod 51, that is, the permanent magnet rod 51 with a relatively large volume size can be accommodated in a small space, and the overall structure is compact and reasonable in arrangement.

Referring to fig. 5 to 8, further, the first valve assembly 50 further includes an elastic sealing cover 54 installed on the first end of the permanent magnet rod 51. An elastic sealing cap 54 seals the third mounting opening 16. Thus, on the one hand, the elastic sealing cover 54 seals the third mounting opening 16, and can ensure the sealing performance of the first air passage 11; on the other hand, in the moving process of the permanent magnet rod 51, the elastic sealing cover 54 can be elastically deformed correspondingly, and the operation stability of the permanent magnet rod 51 can be ensured.

Referring to fig. 5 to 8, further, the wall of the third chamber 14 is provided with a fourth mounting opening 144 opposite to the second vent 141, and a first mounting cover 145 detachably blocking the fourth mounting opening 144. The third vent 142 is provided in the first mounting cover 145.

Referring to fig. 5 to 8, a third sealing ring 73 is optionally disposed between the first mounting cover 145 and the rim of the fourth mounting opening 144. The wall of the fourth chamber 15 is provided with a fifth mounting opening 152, and a second mounting cover 153 detachably mounted on the valve body 10 and sealing the fifth mounting opening 152. A fourth seal ring 74 is provided between the second mounting cover 153 and the rim of the fifth mounting hole 152. Thus, the first valve assembly 50 can be installed inside the valve body 10 by opening the second installation cover 153 and the first installation cover 145.

Referring to fig. 5 to 8, in one embodiment, the second valve assembly 60 includes a movable rod 61, a second sealing body 62, and a fourth spring 63 sleeved on the movable rod 61. The first end of the movable rod 61 is in clearance fit with or connected to the end face of the first valve assembly 50, the second sealing body 62 is wound on the outer wall of the second end of the movable rod 61 and is used for sealing or opening the third vent 142, one end of the fourth spring 63 is abutted to the first end of the movable rod 61, and the other end of the fourth spring 63 is abutted to the wall of the third chamber 14. Specifically, the second end of the movable rod 61 and the second sealing body 62 are disposed in the fourth chamber 15, and under the action of the fourth spring 63, the second sealing body 62 at the second end of the movable rod 61 is in close contact with and seals the third vent 142, and the movable rod 61 is driven by the first valve assembly 50 to move, and the movable rod 61 drives the second sealing body 62 to open the third vent 142.

Referring to fig. 5 to 8, in one embodiment, a combustion apparatus includes a gas regulating valve according to any one of the above embodiments.

In the combustion apparatus, when the combustion apparatus needs to work in a big fire state, the first electromagnetic valve 20 controls the first movable iron core 21 to move to open the first vent 121, the external gas enters the first chamber 12 through the gas inlet 123 and enters the first gas passage 11 through the first vent 121, the second electromagnetic valve 30 controls the second movable iron core 31 to move to open the mouth of the first recess 131, the gas in the first gas passage 11 enters the second chamber 13 and can enter the fourth chamber 15 through the first recess 131 and the gas hole 132, the gas in the fourth chamber 15 is output outwards through the inner ring fire supply port 151, meanwhile, the third electromagnetic valve 40 drives the first valve assembly 50 to open the second vent 141, the first valve assembly 50 drives the second valve assembly 60 to move, the second valve assembly 60 synchronously opens the third vent 142, so that the gas in the first gas passage 11 can enter the third chamber 14 through the second vent 141, a part of the gas introduced into the third chamber 14 is discharged to the outside through the outer ring fire gas supply port 143, another part of the gas introduced into the third chamber 14 is introduced into the fourth chamber 15 through the third vent hole 142, and the gas in the fourth chamber 15 is discharged to the outside through the inner ring fire gas supply port 151; when the gas turbine needs to work in a small-fire combustion state, the first electromagnetic valve 20 controls the first movable iron core 21 to move to open the first air vent 121, external gas enters the first chamber 12 through the air inlet 123 and enters the first air passage 11 through the first air vent 121, the second electromagnetic valve 30 controls the second movable iron core 31 to move to open the mouth of the first concave portion 131, gas in the first air passage 11 enters the second chamber 13 and can enter the fourth chamber 15 through the first concave portion 131 and the air holes 132, gas in the fourth chamber 15 is output outwards through the inner ring fire air supply port 151, meanwhile, the first valve assembly 50 seals the second air vent 141, the second valve assembly 60 seals the third air vent 142, namely gas in the first air passage 11 cannot enter the third chamber 14 through the second air vent 141, so that the outer ring fire air supply port 143 is not supplied with gas, and only gas in the second chamber 13 enters the fourth chamber 15 through the air holes 132, because the aperture of gas pocket 132 is less, the gas volume of supplying inner ring fire air supply port 151 is less, works in the state of little fire burning this moment promptly, owing to adopt gas pocket 132 to control the gas volume that enters into inner ring fire air supply port 151 moreover, can realize the accurate control of little fire burning, and little fire burning effect is comparatively stable.

It should be noted that in an infringement comparison, where one of the elements is described as being connected to another element and one of the elements is attached to another element, it is understood that the two elements may be connected by fasteners such as bolts, screws, pins, rivets, etc., or may be fixedly connected by snapping, welding or integral molding. Wherein, the integrated molding mode can adopt the processes of extrusion, casting, press fitting, injection molding and the like.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (10)

1. A gas regulating valve, characterized in that, gas regulating valve includes:

the gas-liquid separation valve comprises a valve body (10), wherein a first air passage (11), a first chamber (12), a second chamber (13), a third chamber (14) and a fourth chamber (15) are arranged in the valve body (10), and a first air vent (121) communicated with the first air passage (11), a first mounting opening (122) opposite to the first air vent (121) and an air inlet (123) for introducing gas are arranged on the wall of the first chamber (12); the second chamber (13) is communicated with the first air passage (11), a first concave part (131) is arranged on the wall of the second chamber (13), an air hole (132) communicated with the fourth chamber (15) is arranged on the bottom wall of the first concave part (131), and a second mounting opening (133) opposite to the first concave part (131) is further arranged on the wall of the second chamber (13); a second vent hole (141) communicated with the first air passage (11) and a third vent hole (142) communicated with the fourth chamber (15) are formed in the wall of the third chamber (14), an outer ring fire air supply hole (143) is further formed in the wall of the third chamber (14), and an inner ring fire air supply hole (151) is formed in the wall of the fourth chamber (15);

the first electromagnetic valve (20), the first electromagnetic valve (20) is installed on the valve body (10), the first electromagnetic valve (20) includes a first movable iron core (21), the first movable iron core (21) extends into the first chamber (12) through the first installation opening (122) and can move in the first chamber (12), and the first movable iron core (21) is used for sealing or opening the first vent hole (121);

the second electromagnetic valve (30) is arranged on the valve body (10), the second electromagnetic valve (30) comprises a second movable iron core (31), the second movable iron core (31) extends into the second chamber (13) through the second mounting opening (133) and can move in the second chamber (13), and the second movable iron core (31) is used for sealing or opening the opening part of the first concave part (131);

the valve comprises a third electromagnetic valve (40), a first valve assembly (50) and a second valve assembly (60), wherein the third electromagnetic valve (40) is installed on the valve body (10), the third electromagnetic valve (40) is used for driving the first valve assembly (50) to move in the first air channel (11), the first valve assembly (50) is used for sealing or opening the second air vent (141), the first valve assembly (50) can drive the second valve assembly (60) to move when moving, the second valve assembly (60) can move in the third chamber (14), the second valve assembly (60) is used for sealing or opening the third air vent (142), the second valve assembly (60) seals the third air vent (142) when the first valve assembly (50) seals the second air vent (141), and the first valve assembly (50) synchronously drives the second valve assembly (141) when opening the second air vent (141) The assembly (60) opens the third vent (142).

2. The gas regulating valve according to claim 1, wherein the first solenoid valve (20) further comprises a first frame (22), a first spring (23) and a first coil (24) mounted on the first frame (22) and wound outside the first movable iron core (21), the first movable iron core (21) is movably disposed on the first frame (22), and the first movable iron core (21) is connected to the first frame (22) through the first spring (23); a first sealing cap (25) is arranged at the end part of the first movable iron core (21), and the first movable iron core (21) seals the first vent (121) through the first sealing cap (25); the second electromagnetic valve (30) further comprises a second frame (32), a second spring (33) and a second coil (34) which is arranged on the second frame (32) and wound outside the second movable iron core (31), the second movable iron core (31) is movably arranged on the second frame (32), and the second movable iron core (31) is connected with the second frame (32) through the second spring (33); and a second sealing cap (35) is arranged at the end part of the second movable iron core (31), and the mouth part of the first concave part (131) is sealed by the second sealing cap (35) of the second movable iron core (31).

3. The gas regulating valve according to claim 2, further comprising a first sealing ring (71) arranged on the valve body (10) and circumferentially arranged around the first mounting opening (122), wherein the first frame (22) is arranged on one end face of the valve body (10) and is in close contact fit with the first sealing ring (71); the gas regulating valve further comprises a second sealing ring (72) arranged on the valve body (10) and wound around the second mounting opening (133) in the circumferential direction, and the end face of one end of the valve body (10) is in close contact fit with the second sealing ring (72) in the second rack (32).

4. The gas regulating valve according to claim 1, wherein the third electromagnet comprises a third frame (41) mounted on the valve body (10), a fixed iron core (42) fixedly mounted on the third frame (41), and a third coil (43) mounted on the third frame (41) and wound outside the fixed iron core (42); the first air valve assembly (50) comprises a permanent magnet rod (51) arranged corresponding to the fixed iron core (42), a first sealing body (52) arranged on the outer wall of one end of the permanent magnet rod (51) in a winding mode, and a third spring (53) arranged on the valve body (10) and used for enabling the first sealing body (52) to abut against and seal the second vent (141); when the fixed iron core (42) works, the permanent magnet rod (51) can move to drive the first sealing body (52) to open the second air vent (141).

5. Gas regulating valve according to claim 4, characterized in that a first end of the permanent magnet rod (51) is arranged opposite to the stationary core (42) at a distance, and a second end of the permanent magnet rod (51) is provided with the first sealing body (52) and projects into the third chamber (14); the outer wall surface of the first sealing body (52) is a conical surface with the outer diameter gradually increasing, and the conical surface is used for being in sealing interference with the opening edge of the second vent (141).

6. The gas regulating valve according to claim 5, characterized in that a third mounting port (16) communicated with the first air passage (11) is formed on the valve body (10), and the third mounting port (16) is arranged opposite to the second air passage (141); the third frame (41) comprises an end plate (411) which is arranged on the valve body (10) and seals the third mounting opening (16), and a second concave portion (412) which avoids the first end of the permanent magnet rod (51) is arranged on the end plate (411).

7. Gas regulating valve according to claim 6, characterized in that the first valve assembly (50) further comprises an elastic sealing cover (54) mounted on the first end of the permanent magnet rod (51), the elastic sealing cover (54) closing the third mounting opening (16).

8. The gas regulating valve according to claim 1, wherein the wall of the third chamber (14) is provided with a fourth mounting opening (144) opposite to the second vent opening (141), and a first mounting cover (145) detachably blocking the fourth mounting opening (144), and the third vent opening (142) is arranged on the first mounting cover (145); a third sealing ring (73) is arranged between the first mounting cover (145) and the opening edge of the fourth mounting opening (144); a fifth mounting opening (152) and a second mounting cover (153) which is detachably arranged on the valve body (10) and seals the fifth mounting opening (152) are arranged on the wall of the fourth chamber (15); and a fourth sealing ring (74) is arranged between the second mounting cover (153) and the opening edge of the fifth mounting opening (152).

9. The gas regulating valve according to any one of claims 1 to 8, wherein the second valve assembly (60) comprises a movable rod (61), a second sealing body (62), and a fourth spring (63) fitted over the movable rod (61); the first end of movable rod (61) with first valve subassembly (50) terminal surface clearance fit or interconnect, second seal body (62) are around locating on the outer wall of movable rod (61) second end and be used for sealing or opening third vent (142), fourth spring (63) one end with the first end of movable rod (61) is inconsistent, fourth spring (63) other end with the wall of third chamber (14) chamber is inconsistent.

10. A combustion device, characterized in that it comprises a gas regulating valve according to any one of claims 1 to 9.

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