CN109340408B - Control valve and gas stove - Google Patents
Control valve and gas stove Download PDFInfo
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- CN109340408B CN109340408B CN201811491304.7A CN201811491304A CN109340408B CN 109340408 B CN109340408 B CN 109340408B CN 201811491304 A CN201811491304 A CN 201811491304A CN 109340408 B CN109340408 B CN 109340408B
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- pressurizing
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- 230000007246 mechanism Effects 0.000 claims abstract description 88
- 230000000903 blocking effect Effects 0.000 claims abstract description 36
- 125000006850 spacer group Chemical group 0.000 claims description 47
- 230000008859 change Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 5
- 239000007789 gas Substances 0.000 abstract description 103
- 239000002737 fuel gas Substances 0.000 abstract description 33
- 238000010411 cooking Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/20—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit operated by separate actuating members
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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
- F16K27/00—Construction of housing; Use of materials therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention provides a control valve and a gas stove, and relates to the technical field of stoves. The control valve comprises a valve body, wherein the valve body is provided with an air inlet channel and at least two air outlet channels which are mutually communicated, the air outlet channels are provided with control switches for controlling the blocking state of the air outlet channels, at least one air outlet channel is communicated with a pressurizing channel, and the valve body is provided with a pressurizing mechanism capable of increasing the gas flow flowing through the corresponding pressurizing channel; the gas stove comprises the burner and the control valve, wherein the burner is communicated with the gas outlet channels of the control valve in a one-to-one correspondence manner. The control valve can increase the air supply amount of external fuel gas to the burner, correspondingly improve the fuel gas concentration at the burner and improve the generated firepower, thereby meeting the requirements of users on normal completion of the ignition of the burner and cooking firepower at any time.
Description
Technical Field
The invention relates to the technical field of stoves, in particular to a control valve and a gas stove.
Background
The kitchen supplies of heating culinary art is carried out to food to the gas-cooker, and the gas-cooker is in the during operation, and gas gets into in the kitchen from the intake pipe, gets into the furnace end after the regulation (the user adjusts through the knob) effect of governing valve, mixes simultaneously with a part of air, and after the mixed gas got into the distributor, by ignition device ignition and from the flame hole blowout formation flame to be used for heating the pan of arranging on the pot support.
Because the cooking time of the household users is centralized, and the air pressure of the gas supplied by the external air supply department is constant, when a plurality of users cook by using the gas stove at the same time, the gas supply pressure is insufficient, and the gas stove has insufficient firepower and even can not ignite; in addition, in the cooking process, some users like to cook dishes meeting the taste through a strong fire stir-frying mode, however, in the working process of the existing gas stove, the fire power of the existing gas stove cannot meet the combustion flame for realizing the strong fire stir-frying, so that when the users cook dishes at home, the dishes are difficult to obtain the same taste as the dishes obtained by the strong fire stir-frying of the commercial stove in a hotel, and the user experience is greatly reduced.
That is, the gas supply pressure is small when the existing gas cooker is used, and the use requirement of a user cannot be met.
Disclosure of Invention
The invention aims to provide a control valve and a gas stove, which are used for solving the technical problems that the gas supply pressure is small when the gas stove is used in the prior art, and the use requirement of a user cannot be met.
The control valve comprises a valve body, wherein an air inlet channel and at least two air outlet channels which are communicated with each other are arranged on the valve body, and a control switch for controlling the blocking state of the air outlet channels is arranged on the air outlet channels;
at least one of the air outlet channels is communicated with the air inlet channel, a pressurizing mechanism is arranged on the valve body, and the pressurizing mechanism can increase the gas flow flowing through the corresponding pressurizing channel.
Furthermore, the number of the air outlet channels is two, pressurizing channels are communicated between the air outlet channels and the air inlet channels, and the pressurizing mechanisms are arranged in one-to-one correspondence with the pressurizing channels.
Further, the air outlet end of the air outlet channel comprises a main air outlet and a secondary air outlet which are arranged in parallel, and the pressurizing channel is communicated between the air inlet channel and the main air outlet;
or, the pressurizing channel is communicated between the air inlet channel and the auxiliary air outlet;
or the air inlet channel is communicated with the main air outlet, and the air inlet channel is communicated with the auxiliary air outlet through the supercharging channel.
Further, the pressurizing channel comprises an air inlet cavity, a pressurizing cavity and an air outlet cavity, the air inlet cavity is communicated with the pressurizing cavity through an air inlet hole and a pressurizing hole, and the pressurizing cavity is communicated with the air outlet cavity through an air outlet hole; the air inlet cavity is provided with an air inlet, the air outlet cavity is provided with an air outlet, the air inlet is communicated with an air inlet channel of the valve body, and the air outlet is communicated with an air outlet channel of the valve body;
the pressurizing mechanism is arranged on the valve body and used for changing the air pressure in the pressurizing cavity, a first blocking piece is movably arranged on the side wall of the air outlet cavity and is blocked at the air outlet hole, and when the air pressure in the pressurizing cavity is larger than the air pressure in the air outlet cavity, the gas flow can push away the first blocking piece and flows into the air outlet cavity through the air outlet hole.
Further, a second blocking piece is movably arranged on the side wall of the pressurizing cavity, the second blocking piece is blocked at the pressurizing hole, and when the air pressure in the air inlet cavity is larger than the air pressure in the pressurizing cavity, the gas flow can push away the second blocking piece to enter the pressurizing cavity.
Further, the pressurizing mechanism comprises a spacer and a driving mechanism, wherein the spacer is arranged in the valve body and encloses the pressurizing cavity together with the inner wall of the valve body, and the driving end of the driving mechanism is connected with the spacer and is used for driving the spacer to deform or move relative to the valve body so as to change the size of the pressurizing cavity.
Further, the spacer is a flexible piece, a clamping groove is formed in the valve body corresponding to the periphery of the spacer, a clamping connector is arranged on the spacer along the circumferential direction of the spacer, and the clamping connector is matched and clamped in the clamping groove.
Further, a boss protrudes outwards from the spacer, a groove is formed in the boss, the groove faces the pressurizing cavity, and the driving end of the driving mechanism is connected with the boss.
Further, the driving mechanism comprises a driving motor and a connecting rod mechanism, a shell of the driving motor is installed on the valve body, one end of the connecting rod mechanism is hinged to the driving end of the driving motor, and the other end of the connecting rod mechanism is connected with the spacer.
Another object of the present invention is to provide a gas stove, which includes a burner and the above control valve, wherein the burner is in one-to-one correspondence with an air outlet channel of the control valve.
The control valve and the gas stove have the beneficial effects that:
the control valve comprises a valve body capable of being communicated with pipelines or connectors of at least two combustors at the same time, a control switch for controlling the communication state of an air outlet channel in the valve body, and a pressurizing mechanism capable of increasing the gas flow flowing through the pressurizing channel, so that the gas flow supplied to the corresponding combustors is increased; the gas stove comprises a burner for burning fuel gas to generate flame to heat and cook food, and a control valve capable of controlling the fuel gas circulation state and increasing the gas flow supplied to the burner.
The number of the burners in the gas stove is equal to the number of the air outlet channels on the control valve, at least two burners are communicated in one-to-one correspondence, and the control switch on each air outlet channel can control the on-off state of the corresponding air outlet channel relatively and independently. When a user cooks, one or more combustors in the gas stove can be selected to use, and a control switch on an air outlet channel communicated with the combustors is correspondingly opened, the gas entering the valve body flows through a pressurizing channel and then is conveyed into the combustors from the air outlet channel, and the gas and air are mixed and combusted to generate flames so as to heat and cook food in a pot on the combustors; when the air pressure of the external fuel gas is enough and the generated firepower can meet the cooking requirement of a user, the pressurizing mechanism is not required to be opened, and the fuel gas directly flows through the valve body and then is conveyed to the burner; when the air supply pressure of the external fuel gas is lower, the generated firepower is smaller and even ignition cannot be completed, a user can start the pressurizing mechanism, the pressurizing mechanism increases the air flow flowing through the pressurizing channel by increasing the air flow of the external fuel gas, so that the air supply amount of the external fuel gas to the burner through the air outlet channel is increased, the gas concentration at the burner is correspondingly increased, the generated firepower is increased, the requirements of the user on normal completion and cooking firepower of the ignition of the burner at any period are further met, and the practicability of the gas stove is improved.
In addition, when outside gas air feed atmospheric pressure is normal, if the user cooks the process and needs the quick-fry strong fire, also can open booster mechanism, booster mechanism increases the gas flow who flows through the passageway of giving vent to anger, and the corresponding increase is to the air supply volume of combustor for the combustor can produce great firepower, satisfies user's demand.
Specifically, a pressurizing channel and a pressurizing mechanism are arranged between at least one air outlet channel and an air inlet channel in the control valve, when the air outlet channels are not all communicated with the pressurizing channel, a user can select a corresponding burner according to the actual gas pressure condition and the actual cooking firepower requirement, for example, when the external gas pressure is lower or the cooking needs larger firepower, the burner communicated with the pressurizing channel is selected; in addition, can also all be provided with the pressure boost passageway on every air outlet channel, the user is no longer restricted to the selection of combustor, and each combustor all can be big firepower culinary art, further improves gas-cooker's practicality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a control valve according to an embodiment of the present invention;
fig. 2 is a schematic partial cross-sectional view of the connection of the boost passage to the boost mechanism of fig. 1.
Icon: 1-a valve body; 3-a first closure member; 4-a second closure; 5-spacer; 6-driving a motor; 7-a link mechanism; 11-an intake passage; 12-an air outlet channel; 13-a control switch; 121-a secondary air outlet; 21-an air inlet cavity; 211-air inlet; 22-a plenum; 23-air outlet cavity; 231-outlet; 24-an air inlet hole; 25-pressurizing holes; 26-an air outlet hole; 27-clamping grooves; 51-snap fitting; 52-boss; 53-grooves.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The embodiment provides a control valve, as shown in fig. 1, which comprises a valve body 1, wherein an air inlet channel 11 and at least two air outlet channels 12 which are mutually communicated are arranged on the valve body 1, and a control switch 13 for controlling the blocking state of the air outlet channels 12 is arranged on the air outlet channels 12; a pressurizing channel is communicated between at least one air outlet channel 12 and the air inlet channel 11, and a pressurizing mechanism is arranged on the valve body 1 and can increase the gas flow flowing through the corresponding pressurizing channel.
The embodiment also provides a gas stove, which comprises a burner and the control valve, wherein the burner is communicated with the gas outlet channels 12 of the control valve in a one-to-one correspondence manner.
The control valve and the gas stove provided by the embodiment, wherein the control valve comprises a valve body 1 which can be communicated with pipelines or joints of at least two combustors at the same time, a control switch 13 for controlling the communication state of an air outlet channel 12 in the valve body 1, and a pressurizing mechanism which can increase the gas flow flowing through the pressurizing channel, thereby increasing the gas flow supplied to the corresponding combustors; the gas stove comprises a burner for burning fuel gas to generate flame to heat and cook food, and a control valve capable of controlling the fuel gas circulation state and increasing the gas flow supplied to the burner.
The number of the burners in the gas stove is equal to the number of the air outlet channels 12 on the control valve, at least two burners are communicated in a one-to-one correspondence manner, and the control switch 13 on each air outlet channel 12 can control the on-off state of the corresponding air outlet channel 12 relatively independently. When a user cooks, the external gas is communicated with the gas inlet channel 11 of the valve body 1, one or more combustors in the gas stove can be selected to be used, a control switch 13 on the gas outlet channel 12 communicated with the combustors is correspondingly opened, the gas entering the valve body 1 flows through the pressurizing channel and then is conveyed into the combustors from the gas outlet channel 12, and the gas is mixed with air and then burned to generate flames to heat and cook food in a pot on the combustors; when the air pressure of the external fuel gas is enough and the generated firepower can meet the cooking requirement of a user, the pressurizing mechanism is not required to be opened, and the fuel gas directly flows through the valve body 1 and then is conveyed to the burner; when the air supply pressure of the external fuel gas is lower, the generated firepower is smaller and even ignition cannot be completed, a user can start the pressurizing mechanism, and the pressurizing mechanism increases the air flow flowing through the pressurizing channel by increasing the air flow of the external fuel gas, so that the air supply amount of the external fuel gas to the burner through the air outlet channel 12 is increased, the gas concentration at the burner is correspondingly increased, the generated firepower is increased, the requirements of the user on normal completion of the ignition of the burner and the cooking firepower at any period are further met, and the practicability of the gas stove is improved.
In addition, when the air pressure of the external gas supply is normal, if the user needs to stir-fry strong fire in the cooking process, the pressurizing mechanism can be opened, the pressurizing mechanism increases the gas flow flowing through the gas outlet channel 12, and correspondingly increases the gas supply amount to the burner, so that the burner can generate larger fire power, and the requirements of the user are met.
Specifically, a pressurizing channel and a pressurizing mechanism are arranged between at least one air outlet channel 12 and an air inlet channel 11 in the control valve, when the air outlet channel 12 is not completely communicated with the pressurizing channel, a user can select a corresponding burner according to the actual gas pressure condition and the actual cooking firepower requirement, for example, when the external gas pressure is lower or the cooking needs larger firepower, the burner communicated with the pressurizing channel is selected; in addition, a pressurizing channel can be arranged on each air outlet channel 12, the selection of the burner by a user is not limited any more, and each burner can cook with big fire, so that the practicability of the gas stove is further improved.
Specifically, in this embodiment, as shown in fig. 1, there may be two air outlet channels 12, and pressurizing channels are communicated between each air outlet channel 12 and the air inlet channel 11, where the pressurizing mechanisms are disposed in one-to-one correspondence with the pressurizing channels. Here, a specific form of two air outlet channels 12 are arranged on the control valve, and the two air outlet channels 12 are communicated with a pressurizing channel, and correspondingly, the gas stove comprises two burners which are communicated with the two air outlet channels 12 in a one-to-one correspondence manner; when a user cooks, the user can use one burner, only the control switch 13 on the air outlet channel 12 communicated with the burner is required to be opened, the control switch 13 on the other air outlet channel 12 is in a closed state, external fuel gas enters the valve body 1 through the air inlet channel 11 of the valve body 1 and is supplied to the corresponding burner through the air outlet channel 12 of the control switch 13, and when large fire is required, the pressurizing mechanism on the large pressurizing channel communicated with the air inlet channel 11 is required to be opened; similarly, two combustors can be used at the same time, the control switch 13 on the two air outlet channels 12 is opened, the gas entering the valve body 1 supplies air to the two combustors through the two air outlet channels 12 at the same time, and when large fire is needed, a user selects a pressurizing mechanism corresponding to the combustors. Specifically, the two air outlet passages 12 on the valve body 1 may be symmetrically arranged.
In this embodiment, as shown in fig. 1, the air outlet end of the air outlet channel 12 may include a main air outlet and a secondary air outlet 121 that are arranged in parallel, and the pressurizing channel is communicated between the air inlet channel 11 and the main air outlet; or, the pressurizing passage is communicated between the air inlet passage 11 and the auxiliary air outlet 121; or, the air inlet channel 11 is communicated with the main air outlet and the air inlet channel 11 is communicated with the auxiliary air outlet 121 through the pressurizing channel. The specific arrangement form of the air outlet channel 12 on the control valve is that the burner comprises a main fire device and a small fire device, the main air outlet on the air outlet channel 12 is communicated with the main fire device of the burner, the auxiliary air outlet 121 is communicated with the small fire device, a pressurizing channel can be arranged between the main fire device and the air inlet channel 11 or between the small fire device and the air inlet channel 11, as shown in fig. 1, the main air outlets of the two air outlet channels 12 are communicated with the pressurizing channels, and the two auxiliary air outlets 121 are not communicated with the pressurizing channels; during cooking, the gas entering the gas outlet channel 12 is respectively supplied to the main fire device through the main gas outlet and the auxiliary gas outlet 121 is supplied to the small fire device, and when large fire power is needed, the pressurizing mechanism on the gas outlet channel 12 is started, so that the gas supply amount of the gas outlet channel 12 to the burner can be increased, and the fire power of the burner is correspondingly increased.
In this embodiment, as shown in fig. 2, the pressurizing channel includes an air inlet cavity 21, a pressurizing cavity 22 and an air outlet cavity 23, the air inlet cavity 21 is communicated with the pressurizing cavity 22 through an air inlet hole 24 and a pressurizing hole 25, and the pressurizing cavity 22 is communicated with the air outlet cavity 23 through an air outlet hole 26; the air inlet cavity 21 is provided with an air inlet 211, the air outlet cavity 23 is provided with an air outlet 231, the air inlet 211 is communicated with the air inlet channel 11 of the valve body 1, and the air outlet 231 is communicated with the air outlet channel 12 of the valve body; the pressurizing mechanism is arranged on the valve body 1 and used for changing the air pressure in the pressurizing cavity 22, the first blocking piece 3 is movably arranged on the side wall of the air outlet cavity 23, the first blocking piece 3 is blocked at the air outlet hole 26, and when the air pressure in the pressurizing cavity 22 is greater than the air pressure in the air outlet cavity 23, the gas flow can push away the first blocking piece 3 and flow into the air outlet cavity 23 through the air outlet hole 26.
Here, the specific structure of the pressurizing channel is that, at the beginning, the air inlet channel 11 of the valve body 1 is communicated with external gas, when the air pressure of the external gas is enough and the pressurizing mechanism is not required to be opened during cooking, the external gas enters the valve body 1 through the air inlet channel 11 of the valve body 1, then enters the air inlet cavity 21 of the pressurizing channel through the air inlet 211 of the air inlet cavity 21 of the pressurizing channel of the valve body 1, then enters the pressurizing cavity 22 of the pressurizing channel through the air inlet hole 24 and the pressurizing hole 25, when the gas pressure in the pressurizing cavity 22 is greater than the gas pressure in the air outlet cavity 23 along with the combustion of the gas by the burner, the gas in the pressurizing cavity 22 can push the first sealing piece 3 to not seal the air outlet hole 26 any more, and finally the gas in the pressurizing cavity 22 flows out of the pressurizing channel through the air outlet hole 26, then passes through the air outlet channel 12 and is input to the burner, so that the continuous gas supply of the burner is realized.
When the air pressure of the external fuel gas is low and the requirement of a user on firepower cannot be met, the external fuel gas enters the air inlet cavity 21 of the pressurizing channel through the valve body 1, the pressurizing mechanism is started, firstly, the air pressure in the pressurizing cavity 22 is reduced by the pressurizing mechanism, the pressure difference between the air inlet cavity 21 and the fuel gas in the pressurizing cavity 22 is increased, the fuel gas in the air inlet cavity 21 flows into the pressurizing cavity 22 under the action of the pressure difference, and the inflow flow is larger than the flow when the pressurizing mechanism is not started; then, the pressurizing mechanism compresses the pressurizing cavity 22, the gas pressure in the pressurizing cavity 22 is increased, correspondingly, the gas pressure difference between the pressurizing cavity 22 and the gas outlet cavity 23 is increased, the gas in the pressurizing cavity 22 pushes away the first blocking piece 3 to flow into the gas outlet cavity 23, the inflow flow is larger than the flow when the pressurizing mechanism is not opened, and then the gas in the gas outlet cavity 23 flows to the gas outlet channel 12 and flows to the burner to supply gas for the burner, so that the gas flow through the pressurizing channel is improved, the gas supply amount to the burner is correspondingly improved, and the burner can be normally used and generates firepower required by a user; the pressurizing mechanism can realize continuous pressurizing of the control valve by performing the circulation.
The first blocking piece 3 in the pressurizing channel can be blocked at the air outlet 231 when the pressurizing mechanism performs pressure reduction treatment on the pressurizing cavity 22, so that the condition that fuel gas in the air outlet cavity 23 flows back into the pressurizing cavity 22 is reduced, and normal use of the burner is ensured.
In this embodiment, as shown in fig. 2, a second blocking member 4 may be movably disposed on a side wall of the pressurizing cavity 22, where the second blocking member 4 is blocked at the pressurizing hole 25, and when the air pressure in the air inlet cavity 21 is greater than the air pressure in the pressurizing cavity 22, the gas flow can push away the second blocking member 4 to enter the pressurizing cavity 22. In the cooking process, when the pressurizing mechanism is not required to be started, the gas pressure in the gas inlet cavity 21 is higher than the gas pressure in the pressurizing cavity 22, and under the action of the pressure difference, the gas in the gas inlet cavity 21 pushes the second blocking piece 4 to be opened and enter the pressurizing cavity 22; when the pressurizing mechanism needs to be started, when the pressurizing mechanism reduces the air pressure in the pressurizing cavity 22, the fuel gas in the air outlet cavity 23 can enter the pressurizing cavity 22 under the action of the pressure difference, and when the pressurizing mechanism increases the air pressure in the pressurizing cavity 22, as the second blocking piece 4 is arranged in the pressurizing cavity 22, the second blocking piece 4 is tightly pressed and blocked at the pressurizing hole 25 under the action of the fuel gas pressure in the pressurizing cavity 22, so that the pressurizing process of the pressurizing cavity 22 is reduced, the condition that the fuel gas in the pressurizing cavity 22 flows back into the air inlet channel 11 through the pressurizing hole 25 is reduced, the flow of the air supply in the pressurizing cavity 22 to the air outlet cavity 23 is correspondingly further increased, and the pressurizing effect of the pressurizing mechanism is further improved.
Specifically, in the form that the first blocking piece 3 and the second blocking piece 4 are arranged on the valve body 1, part of the edges can be hinged on the valve body 1, and a reset piece is arranged to drive the first blocking piece 3 and the second blocking piece 4 to be blocked at the positions of the air outlet hole 26 and the pressurizing hole 25 respectively; in addition, the first blocking piece 3 and the second blocking piece 4 can also be made of rubber materials, part of edges of the rubber blocking pieces are fixed on the valve body 1, the rubber blocking pieces deform when being pushed by fuel gas, the pressurizing holes 25 or the air outlet holes 26 are not blocked, and the rubber blocking pieces can return to the original positions under the action of self deformation when not being subjected to external force, so that the pressurizing holes 25 or the air outlet holes 26 are blocked.
Specifically, in the present embodiment, as shown in fig. 2, the air intake holes 24 may be plural, and the air intake holes 24 are distributed on the sidewall between the air intake chamber 21 and the pressurizing chamber 22. The air inlet holes 24 can supply the fuel gas in the air inlet cavity 21 to flow into the pressurizing cavity 22, and the plurality of air inlet holes 24 can improve the fluidity of the fuel gas; in addition, when the pressurizing mechanism carries out pressurizing treatment on the inside of the pressurizing cavity 22, part of fuel gas in the pressurizing cavity 22 can flow back into the air inlet cavity 21 through the air inlet holes 24, and the air inlet holes 24 are distributed in a dispersed manner, so that the pressurizing process of the pressurizing cavity 22 is carried out, the plurality of air inlet holes 24 can carry out pressure relief treatment on the fuel gas in the pressurizing cavity 22 at different positions, the condition that the fuel gas is unstable due to too violent air supply of the pressurizing cavity 22 to the air outlet cavity 23 is reduced, and therefore the stability of the air supply of the pressurizing mechanism and the combustion stability of the combustor are improved.
Specifically, in this embodiment, as shown in fig. 2, the pressurizing mechanism may include a spacer 5 and a driving mechanism, where the spacer 5 is disposed in the valve body 1 and encloses a pressurizing cavity 22 with an inner wall of the valve body 1, and a driving end of the driving mechanism is connected with the spacer 5 and is used to drive the spacer 5 to deform or move relative to the valve body 1 so as to change a size of the pressurizing cavity 22. Here, two specific forms of the pressurizing mechanism are provided, wherein the spacer 5 and the inner wall of the valve body 1 jointly enclose a pressurizing cavity 22, an air inlet hole 24, a pressurizing hole 25 and an air outlet hole 26 are arranged on the side wall of the pressurizing cavity 22, when the driving mechanism drives the spacer 5 to face away from the air inlet hole 24, the pressurizing hole 25 and the air outlet hole 26 to deform or move relative to the valve body 1, the volume of the pressurizing cavity 22 is increased, the air pressure in the pressurizing cavity 22 is reduced, and the flow rate of the fuel gas in the air inlet cavity 21 flowing into the pressurizing cavity 22 is increased; similarly, the driving mechanism drives the spacer 5 to deform or move relative to the valve body 1 towards the air inlet hole 24, the pressurizing hole 25 and the air outlet hole 26, so that the volume of the pressurizing cavity 22 is reduced, the air pressure in the pressurizing cavity 22 is increased, the gas transmission flow of the gas into the air outlet cavity 23 is increased, and the pressurizing effect of the pressurizing mechanism is realized.
In this embodiment, for the pressurization effect achieved by the deformation of the spacer 5, specifically, the spacer 5 may be a flexible member, the valve body 1 is provided with a clamping groove 27 corresponding to the periphery of the spacer 5, the spacer 5 is provided with a clamping head 51 along the circumferential direction thereof, and the clamping head 51 is matched and clamped in the clamping groove 27. The periphery of the flexible spacer 5 is connected to the valve body 1, so that the spacer 5 is in sealing connection with the valve body 1, and the occurrence of leakage of fuel gas in the pressurizing cavity 22 outwards through the spacer 5 is reduced; the driving mechanism drives the spacer 5 to deform, and accordingly the size of the pressurizing cavity 22 is changed, so that pressurizing and depressurizing effects on the pressurizing cavity 22 are realized, and the increase of the gas flow in the pressurizing channel of the valve body 1 is completed. In addition, the engagement groove 27 on the valve body 1 is engaged with the engagement connector 51, so that the spacer 5 can be firmly fixed to the valve body 1, and the spacer 5 can be prevented from being pulled by the driving mechanism to be separated from the valve body 1.
In this embodiment, for the above movement of the diaphragm 5 relative to the valve body 1, specifically, the diaphragm 5 slides and blocks in the channel inside the valve body 1, and the periphery of the diaphragm 5 seals the channel in a matching manner, wherein the inner wall of the valve body 1 on one side of the diaphragm 5 facing the air outlet hole 26 encloses the pressurizing cavity 22 together, and when the driving mechanism drives the diaphragm 5 to move along the channel inside the valve body 1 toward the air outlet hole 26 (the periphery of the diaphragm 5 is always tightly sealed with the inner wall of the channel during the movement), the volume of the pressurizing cavity 22 becomes smaller, and the air pressure increases; when the driving mechanism drives the spacer 5 to move along the direction of the channel back to the air outlet hole 26, the volume of the pressurizing cavity 22 is increased, and the air pressure is reduced, so that the pressurizing and depressurizing effects on the pressurizing cavity 22 are realized, and the increase of the air flow in the valve body 1 is completed.
In this embodiment, as shown in fig. 2, the spacer 5 may have a boss 52 protruding outwards, a groove 53 is formed in the boss 52, the groove 53 faces the plenum chamber 22, and the driving end of the driving mechanism is connected to the boss 52. Here, in a specific form of the spacer 5, a bending part is formed between the boss 52 and the spacer 5, and the boss 52 itself also has a bending part, when the driving mechanism drives the spacer 5 to deform through the boss 52, the boss 52 and the bending part at the joint of the boss 52 and the spacer 5 deform first, and in the deformable range of the spacer 5 and the boss 52, the deformation degree is increased as much as possible, and the volume change degree of the pressurizing cavity 22 is correspondingly enhanced; meanwhile, the occurrence of the condition that the flat plate-shaped partition plate deforms and is easy to tear can be reduced.
Specifically, in this embodiment, as shown in fig. 2, the driving mechanism may include a driving motor 6 and a link mechanism 7, where a housing of the driving motor 6 is mounted on the valve body 1, and one end of the link mechanism 7 is hinged to the driving end of the driving motor 6, and the other end is connected to the spacer 5. Here, in a specific form of the driving mechanism, the driving end of the driving motor 6 rotates to drive the link mechanism 7 to reciprocate, so as to drive the spacer 5 to deform reciprocally or reciprocate relative to the valve body 1, thereby realizing the volume change of the pressurizing cavity 22. Here, the link mechanism 7 in fig. 2 is only a schematic view, and is not a specific structure of the link mechanism 7.
In addition to the above-mentioned mode, in this embodiment, the driving mechanism may also be a push rod motor, the driving end of the push rod motor is connected with the spacer 5, and the reciprocating driving of the spacer 5 is achieved by the extension and retraction of the push rod.
In this embodiment, as shown in fig. 2, the driving motor 6 may be disposed on the valve body 1, and both the driving end of the driving motor 6 and the link mechanism 7 are located inside the valve body 1. In this case, the valve body 1 can protect the driving end of the driving motor 6 and the link mechanism 7, so as to reduce damage caused by external factors, thereby ensuring normal operation of the link mechanism 7 and prolonging the service life thereof.
In this embodiment, the control valve may further include a controller, where the switch of the driving motor 6 is connected to the controller, and the user may control the switch of the driving motor 6 and select a driving gear of the driving motor 6 through a switch button and a gear button on the controller, so as to implement a supercharging function of the supercharging mechanism and a choice of supercharging capability; in addition, the control switch 13 on the control valve can be a solenoid valve, a stepping motor or a mechanical switch, and the like, the control switch 13 is electrically connected with the controller, and a user can control the on-off state of the control switch 13 through a switch button on the controller.
Specifically, the diaphragm 5 can select a rubber diaphragm, the rubber diaphragm separates the pressurizing cavity 22 and the driving mechanism at two relatively independent sides, and the dangers of gas combustion explosion and the like caused by sparks and the like generated by the driving motor 6 and the connecting rod mechanism 7 in the operation process can be reduced, so that the use safety of the control valve is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the technical solutions according to the embodiments of the present invention.
Claims (10)
1. The control valve is characterized by comprising a valve body (1), wherein an air inlet channel (11) and at least two air outlet channels (12) which are communicated with each other are arranged on the valve body (1), and a control switch (13) for controlling the blocking state of the air outlet channels (12) is arranged on the air outlet channels;
a pressurizing channel is communicated between at least one air outlet channel (12) and the air inlet channel (11), and a pressurizing mechanism is arranged on the valve body (1) and can increase the gas flow passing through the corresponding pressurizing channel;
the pressurizing channel comprises an air inlet cavity (21), a pressurizing cavity (22) and an air outlet cavity (23), wherein the air inlet cavity (21) is communicated with the pressurizing cavity (22), and the pressurizing cavity (22) is communicated with the air outlet cavity (23) through an air outlet hole (26); the side wall of the air outlet cavity (23) is movably provided with a first blocking piece (3), the first blocking piece (3) is blocked at the air outlet hole (26), and when the air pressure in the pressurizing cavity (22) is larger than the air pressure in the air outlet cavity (23), the first blocking piece (3) can be pushed away by the gas flow, and the gas flows into the air outlet cavity (23) through the air outlet hole (26);
the pressurizing mechanism can firstly reduce the air pressure in the pressurizing cavity (22) so as to increase the air flow flowing into the pressurizing cavity (22), and then compress the pressurizing cavity (22) so that the air in the pressurizing cavity (22) pushes away the first blocking piece (3) to flow into the air outlet cavity (23), and the flow of the flowing air is larger than that when the pressurizing mechanism is not started.
2. The control valve according to claim 1, wherein the number of the air outlet channels (12) is two, and pressurizing channels are communicated between the air outlet channels (12) and the air inlet channels (11), and the pressurizing mechanisms are arranged in one-to-one correspondence with the pressurizing channels.
3. The control valve according to claim 1, characterized in that the outlet end of the outlet channel (12) comprises a main outlet and a secondary outlet (121) arranged in parallel, the pressurizing channel being in communication between the inlet channel and the main outlet;
or, the pressurizing passage is communicated between the air inlet passage (11) and the auxiliary air outlet (121);
or, the air inlet channel (11) and the main air outlet and the air inlet channel (11) and the auxiliary air outlet (121) are communicated through the pressurizing channel.
4. A control valve according to any one of claims 1-3, characterized in that the inlet chamber (21) and the pressure-increasing chamber (22) are connected by means of inlet holes (24), pressure-increasing holes (25); the air inlet cavity (21) is provided with an air inlet (211), the air outlet cavity (23) is provided with an air outlet (231), the air inlet (211) is communicated with the air inlet channel (11) of the valve body (1), and the air outlet (231) is communicated with the air outlet channel (12) of the valve body (1).
5. The control valve according to claim 4, characterized in that a second blocking member (4) is movably arranged on the side wall of the pressurizing cavity (22), and when the second blocking member (4) is blocked at the pressurizing hole (25) and the air pressure in the air inlet cavity (21) is larger than the air pressure in the pressurizing cavity (22), the gas flow can push the second blocking member (4) to enter the pressurizing cavity (22).
6. The control valve according to claim 4, wherein the pressurizing mechanism comprises a spacer (5) and a driving mechanism, the spacer (5) is arranged in the valve body (1) and encloses the pressurizing cavity (22) together with the inner wall of the valve body (1), and the driving end of the driving mechanism is connected with the spacer (5) and is used for driving the spacer (5) to deform or move relative to the valve body (1) so as to change the size of the pressurizing cavity (22).
7. The control valve according to claim 6, characterized in that the spacer (5) is a flexible member, a clamping groove (27) is formed in the valve body (1) corresponding to the periphery of the spacer (5), a clamping joint (51) is formed in the spacer (5) along the circumferential direction of the spacer, and the clamping joint (51) is clamped in the clamping groove (27) in a matching manner.
8. The control valve according to claim 7, characterized in that a boss (52) protrudes outwards from the diaphragm (5), a groove (53) is formed in the boss (52), the groove (53) faces the pressurizing chamber (22), and the driving end of the driving mechanism is connected with the boss (52).
9. A control valve according to claim 6, characterized in that the drive mechanism comprises a drive motor (6) and a link mechanism (7), the housing of the drive motor (6) is mounted on the valve body (1), one end of the link mechanism (7) is hinged with the drive end of the drive motor (6), and the other end is connected with the spacer (5).
10. A gas stove comprising a burner and a control valve according to any one of claims 1-9, said burner being in one-to-one communication with an outlet channel (12) of said control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811491304.7A CN109340408B (en) | 2018-12-06 | 2018-12-06 | Control valve and gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811491304.7A CN109340408B (en) | 2018-12-06 | 2018-12-06 | Control valve and gas stove |
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| Publication Number | Publication Date |
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| CN109340408A CN109340408A (en) | 2019-02-15 |
| CN109340408B true CN109340408B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811491304.7A Active CN109340408B (en) | 2018-12-06 | 2018-12-06 | Control valve and gas stove |
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