CN216079918U

CN216079918U - Wind-air linkage control device with wind-controlled air function

Info

Publication number: CN216079918U
Application number: CN202121681137.XU
Authority: CN
Inventors: 夏光超
Original assignee: Anhui Hanxiang Intelligent Technology Co ltd
Current assignee: Anhui Hanxiang Intelligent Technology Co ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2022-03-18
Anticipated expiration: 2031-07-22

Abstract

The invention belongs to the technical field of commercial stoves, and particularly relates to a pneumatic linkage control device with a pneumatic control function. The invention comprises a gas path module and a wind path module; the method is characterized in that: the air path module comprises an air inlet path communicated with an air source, and an electromagnetic proportional valve used for controlling the air inlet amount of the air path module is arranged at the air inlet path; the air path module comprises a fan, an air outlet end of the fan is communicated with an air inlet path, a damper is arranged on the air inlet path, the damper is driven by a damper shaft to adjust the air input of the air inlet path, and an angle sensor for monitoring the rotation angle of the damper shaft is arranged beside the damper shaft; the signal output end of the angle sensor is electrically connected with the signal input end of the controller, and the signal output end of the controller is electrically connected with the electromagnetic proportional valve. The invention has the advantages of low operation threshold and high ignition reliability by a mode of controlling air by wind, and the ignition efficiency and the service life of the stove can be effectively ensured.

Description

Wind-air linkage control device with wind-controlled air function

Technical Field

The invention belongs to the technical field of commercial stoves, and particularly relates to a pneumatic linkage control system with a pneumatic control function.

Background

The gas way of traditional commercial kitchen range is mostly the vertical hard tube that a root connects the gas circuit and connects the horizontal hard tube that a root connects the wind circuit thereby forms T type pipe. Be equipped with the admission valve at the entry end of vertical hard tube to a gas branch road of branch is used for connecing flame-out protection electromagnetic switch valve, and flame-out protection electromagnetic switch valve divides 2 branches: one path is communicated with the normally open flame burner through the normally open flame electromagnetic proportional valve, and the other path is communicated with the main flame burner through the main flame electromagnetic proportional valve. When the fan works, a power switch is closed, and the fan is started; on one hand, the ignition controller starts a normally open fire electromagnetic switch valve on the flameout protection valve, and at the moment, a manual valve at the tail end of a normally open fire gas circuit is opened, so that the normally open fire burner can supply gas. On the other hand, the ignition controller also releases a high-voltage arc through the ignition needle, and the high-voltage arc ignites a normally open fire. The flame ion probe is positioned in a normally open flame combustion area, monitors normally open flame in real time, converts detected flame into an electric signal and transmits the electric signal to the ignition controller. The ignition controller then opens the main fire electromagnetic switch valve on the flameout protection valve according to a set program, at the moment, the manual valve at the tail end of the main fire gas circuit is opened, the main fire burner is supplied with gas, and the main fire is ignited by the normal open fire. In the traditional use process, the existing stove structure is a structure of 'controlling wind by air' or 'single action of wind and air' due to the conventional consideration. The wind-air single-action mode is the most extensive in use as the name implies, namely the air inlet path and the air inlet path are controlled by independent manual valves or electric valves, and the defect is that the steps are complicated when the cooking range is opened and closed every time. Especially, when firing, the sizes of the air door and the air door need to be independently regulated and controlled to ensure that the air-fuel ratio of the furnace fire reaches the optimization, and the efficiency is extremely low. Later, a mode of 'controlling wind by air', namely integrally extending a handle for controlling the air valve to the air door or connecting the handle to the air door by a chain transmission mode and the like, is started to appear, so that the aim of screwing the air valve to enable the air door to generate synchronous linkage action is fulfilled. The mode of 'controlling wind by gas' has the advantages that the stove can be fired by one-time action, and the operation is very convenient; the disadvantage is that the air intake and the air intake of the stove are not always linear. Quantification is carried out by numbers, when the air input is 1, the optimal work of the fire can be ensured only by 1000 rotations of the fan, and when the air input is 2, the normal work of the fire can be ensured only by 1600 rotations of the fan. Under the condition that the air valve active air door follows up, once the air valve is finely adjusted, the rotating speed of the fan at the air door needs to be continuously and frequently changed, so that different corresponding wind power is input, severe requirements are provided for sensitive response of the fan, and meanwhile, the service life of the fan is also adversely affected by frequent acceleration and deceleration. In addition, above-mentioned "with the air-operated control wind" mode, often need the old cook of very abundant experience to carry out the operation of starting a fire, because when screwing the valve, old cook can come fine adjustment valve size through slight wrist adjustment mode to control valve air input and air door intake air rate and be in the optimum point, the operation threshold is extremely high, and this obviously seriously restricts the normal development of kitchen range trade, awaits the solution urgently.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a wind-pneumatic linkage control system with a wind-controlled pneumatic function; the system has the advantages of low operation threshold and high ignition reliability by a mode of controlling gas by wind, and accordingly, the ignition efficiency and the service life of the stove can be effectively ensured.

In order to achieve the purpose, the invention adopts the following technical scheme:

a wind-pneumatic linkage control system with a wind-controlled function comprises a gas path module and a wind path module; the method is characterized in that: the air path module comprises an air inlet path communicated with an air source, and an electromagnetic proportional valve used for controlling the air inlet amount of the air path module is arranged at the air inlet path; the air path module comprises a fan, an air outlet end of the fan is communicated with an air inlet path, a damper is arranged on the air inlet path, the damper is driven by a damper shaft to adjust the air input of the air inlet path, and an angle sensor for monitoring the rotation angle of the damper shaft is arranged beside the damper shaft; the signal output end of the angle sensor is electrically connected with the signal input end of the controller, and the signal output end of the controller is electrically connected with the electromagnetic proportional valve.

Preferably, the air inlet channels are parallel air channels, the electromagnetic proportional valve comprises a main fire electromagnetic proportional valve and a normally open fire electromagnetic proportional valve, one group of parallel air channels are communicated to the air inlet of the main fire burner through the main fire electromagnetic proportional valve, and the other group of parallel air channels are communicated to the air inlet of the normally open fire burner through the normally open fire electromagnetic proportional valve; the air inlet passage comprises a first parallel air passage and a second parallel air passage, the first parallel air passage is communicated to an air inlet of the main fire burner, and the second parallel air passage is communicated to an air inlet of the normally open fire burner; the air damper is arranged on the first parallel air passage and is used for opening and closing and adjusting the air inlet amount of the first parallel air passage.

Preferably, the first parallel air duct is further provided with a front damper for primarily adjusting the air inlet volume of the first parallel air duct, and the front damper is arranged at a section of air inlet pipeline between the damper and the second parallel air duct.

Preferably, an observation plate convenient for visual measurement of intake air is arranged at the front air door, the observation plate is fan-shaped and plate-shaped, and scales are arranged on the outer side of the observation plate; the observation plate is provided with a curved waist-shaped adjusting hole in a penetrating way, and the axis of a hole-shaped curve of the waist-shaped adjusting hole is coaxial with the axis of the front air door shaft; the outer wall of the air inlet pipeline is convexly provided with an anchor post, and the anchor post extends outwards along the path of the air inlet pipe and penetrates into the waist-shaped adjusting hole cavity; the anchor post and the waist-shaped adjusting hole form a hole-shaft plug-in type sliding fit relation.

Preferably, the gas circuit module further comprises a main fire electromagnetic switch valve and a normally open fire electromagnetic switch valve; the normally open fire electromagnetic proportional valve and the main fire electromagnetic proportional valve are connected in parallel to form the main fuel gas control module, and the normally open fire electromagnetic switch valve and the main fire electromagnetic switch valve are connected in parallel to form the standby fuel gas control module; the air outlet of the main air passage is divided into four groups of branch air passages in parallel; the first parallel branch gas circuit is communicated with a main gas circuit at the main fire burner through a main fire electromagnetic switch valve, and the second parallel branch gas circuit is communicated with a normally open fire gas circuit at the normally open fire burner through a normally open fire electromagnetic switch valve; the third parallel branch gas path is communicated with a normally open fire gas path at the normally open fire burner through a normally open fire electromagnetic proportional valve, and the fourth parallel branch gas path is communicated with a main gas path at the main fire burner through a main fire electromagnetic proportional valve; the gas circuit module also comprises a control switch for realizing that one of the gas outlet paths of the gas inlet circuit is switched on between the main gas control module and the standby gas control module, and the control switch is electrically connected with the control ends of the four groups of parallel branch gas circuits through a controller.

Preferably, the gas circuit module further comprises a one-way damping valve for delaying the instantaneous inrush speed of the gas in the gas inlet circuit to the main fire burner, and the flowing direction of the gas in the main gas circuit is the one-way conduction direction of the one-way damping valve.

Preferably, the gas circuit module further comprises a one-way ball valve for delaying the instantaneous inrush speed of the gas in the gas inlet circuit to the main fire burner, a gas passing path of the one-way ball valve is vertically arranged, the lead gas in the main gas circuit flows vertically from bottom to top, and the flowing direction of the gas is the one-way conduction direction of the one-way ball valve.

Preferably, the gas circuit module further comprises a main fire adjusting valve for adjusting the gas flow of the main gas circuit and a normally open fire adjusting valve for adjusting the gas flow of the normally open fire gas circuit, wherein the normally open fire adjusting valve is arranged at the normally open fire gas circuit, and the main fire adjusting valve is arranged at the main gas circuit.

Preferably, the main fire regulating valve and the normally open fire regulating valve are both long-handle gas ball valves.

Preferably, a gas pressure stabilizing valve and a throttle valve are sequentially arranged on the gas inlet path along the gas passing direction.

The invention has the beneficial effects that:

1) various defects caused by the traditional air-air independent control or air control mode are abandoned; the invention breaks through thinking of shackle and adopts a unique design idea of controlling air by wind, thereby effectively reducing the actual operation threshold of the invention and having the advantage of high ignition reliability. In actual design, the air-gas linkage control system utilizes a controllable fire valve structure, the air path is controlled, the opening and closing amplitude of the air damper is sensed through the angle sensor, then a signal is transmitted to a controller such as a PLC, the controller carries out follow-up linkage control on the main fire electromagnetic proportional valve and the normally open fire electromagnetic proportional valve, and finally the air-gas linkage function is achieved.

Of course, the wind-air linkage system in the invention is only a hardware platform formed by connecting physical components together through a circuit structure. In use, the system can be used in conjunction with software in the prior art to achieve the preset wind-air linked objectives, but it must be pointed out that: the software associated with the present control system is not an innovative part of, and is not an integral part of, the present invention. That is, the protection of the present invention extends only to a hardware network formed of physical components and wires, and does not involve improvement and protection of software.

2) On the basis of the structure, the invention further abandons a great deal of inconvenience brought by the traditional method of forcibly extinguishing the main fire burner by simply adopting the extinguishing protection valve, and increases the standby gas control module, thereby replacing the extinguishing protection valve with the standby gas control module. On the one hand, the gas circuit switching function through control switch for whole device has at first satisfied flame-out protection valve's inherent function, also promptly: the main gas control module breaks down, and the gas circuit cannot be smooth, so that each electronic module for controlling the main gas control module is automatically closed, and the main gas control module is closed at the moment, and flameout protection is realized. On the other hand, when the main gas control module is flameout for protection, the kitchen is still in a peak use state or at least in a use state, and at the moment, maintenance personnel cannot enter the kitchen with a hot fire facing the sky immediately for field maintenance. Therefore, only the control switch needs to be turned over, the gas inlet circuit is enabled to be communicated with the standby gas control module, the aim of firing the stove can be achieved through the standby gas control module under the flameout protection state, and the maintenance time points are staggered. When the kitchen is in an idle state, the kitchen can be maintained again, so that the actual economic benefit of a user is guaranteed on the premise of guaranteeing the use safety.

3) It is worth noting that in the using process, the air-air linkage control is only the accurate linkage control of the main gas control module, and the standby gas control module only needs to realize the controllable opening and closing. In other words, the invention utilizes the precise controlled linkage function of the electromagnetic proportional valve, thereby realizing the purpose of regulating and controlling the fine proportion of the fuel gas at the main gas path very precisely and perfectly realizing the final effect of 'the gas moves along with the wind'. The normally open fire electromagnetic switch valve and the main fire electromagnetic switch valve are only responsible for opening and closing but not for precise adjustment, so that the simplification, the reliability and the low cost of the whole structure are ensured.

Under a normal use state, the main gas control module comprises a normally open fire electromagnetic proportional valve and a main fire electromagnetic proportional valve; therefore, the opening and closing states of the normally open fire electromagnetic proportional valve and the main fire electromagnetic proportional valve can be accurately controlled through the controller or the single chip microcomputer, and therefore the function of timely adjusting the air inflow of the main air path and the normally open fire air path is achieved. Even if necessary, the function of nonlinear control of air inflow by the air intake can be realized by utilizing the precise action characteristic that the electromagnetic proportional valve is different from other valve bodies in an air control mode, so that the flame is always in the optimal combustion state when the stove is used. As for reserve gas control module group, it plays reserve control function occasionally after all, consequently need not to design precision assembly, only need can realize the break-make function of reserve gas circuit through control switch can to guarantee the price/performance ratio of global design, succinct mechanical structure also brings very high use reliability simultaneously, thereby satisfies the function that the homoenergetic reliably opened and close at any time.

4) During the in-service use, when the main fire gas is opened in the twinkling of an eye, because the gas circuit of advancing of often naked light gas circuit and main gas circuit sharing, main gas circuit is opened in the twinkling of an eye, and the gas pressure of gas circuit suddenly reduces, and the atmospheric pressure of often naked light gas circuit also can follow the suddenly drop, thereby the gas supplies not go up and leads to often naked light combustor flame to be toward retracting rapidly, can contract normal naked light when speed is very fast and go out to further cause flame ion probe to take out the signal. Then, the main fire electromagnetic switch valve and the normally open fire electromagnetic switch valve are closed, and the stove cannot be used. When the hearth has no pre-purging function or an operator is unfamiliar with safe operating rules and still urgently fries dishes and repeatedly starts a machine to repeat the same action, the more the premixed gas which is not normally ignited in the hearth is accumulated under a closed combustion state, and once the premixed gas meets mars, the premixed gas is extremely easy to detonate, so that kitchen safety accidents are caused.

In view of the above, as another important part of the present invention, the device is designed with a one-way damping valve or a one-way ball valve for delaying the instantaneous inrush speed of the gas in the gas inlet path to the main fire burner. When the one-way ball valve is selected, attention needs to be paid to the vertical arrangement of a gas passing path of the one-way ball valve, and the flowing direction of gas in the main gas path from bottom to top is the one-way conduction direction of the one-way ball valve. Therefore, when the main fire gas is instantly opened, the gas in the air inlet channel upwells and goes upwards to the main gas channel through any gas control module, and is blocked by the one-way ball valve in the main gas channel. The gas can be continuously gathered at one end of the one-way ball valve, and finally the ball in the one-way ball valve is pushed after a certain pressure is reached, and then the gas enters the main fire burner. Therefore, before entering the main fire burner, the gas in the gas inlet channel has short gasping time, namely the gas pressure generates aggregation effect due to the existence of the one-way ball valve and reaches the designated pressure, thereby avoiding the phenomenon of sudden pressure loss of the gas inlet channel. Once the pressure of the air inlet in the air inlet channel can be kept uniform all the time, the pressure in the normally open fire air channel and the pressure in the main air channel can be ensured, and the ignition reliability of the whole device can be effectively ensured. The one-way damping valve does not need to be vertically arranged, and the phenomenon of sudden pressure loss of the air inlet circuit can be avoided by means of the elastic damping force of the one-way damping valve.

5) And a main fire regulating valve with a long handle and a normally open fire regulating valve are additionally arranged on the main air path behind the one-way damping valve or the one-way ball valve so as to be used for regulating the main fire and the normally open fire in a standby mode. Although the air valve and the air door of each electromagnetic switch valve are opened to the maximum in the standby mode, the air-air ratio is not proper, and the long-handle gas ball valve can be pulled to finely adjust the air supply of the main fire and the normally open fire, so that the main fire and the normally open fire can be combusted at the optimal air-air ratio in the emergency standby mode. The gas pressure stabilizing valve and the throttle valve play a role in ensuring stable air intake, and are not described again here.

6) On the basis of the design of the air damper, the invention is additionally provided with the front air damper. When the air damper is used, more air dampers exist as 'linkage valves', namely the main fuel gas control module moves when the air damper moves, and the air and the gas coordinate to realize the combustion with the optimal air-fuel ratio of the furnace fire. The front air door is used as an independent part, the purpose of initial presetting and adjustment is achieved, the requirement for design can be met by ensuring the air inlet volume of the wind power of the fan when the wind power initially enters the first parallel air passage, and fine adjustment can be carried out by adjusting the air door subsequently.

Drawings

FIGS. 1 and 2 are diagrams of the present invention in use;

FIG. 3 is an electrical schematic of the present invention;

fig. 4 and 5 are general assembly diagrams of the main gas control module and the standby gas control module;

FIG. 6 is a side view of the structure shown in FIG. 4;

FIGS. 7 and 8 are perspective views showing the arrangement positions of the front damper and the damper;

fig. 9 is a cross-sectional view of a damper.

The actual correspondence between each label and the part name of the invention is as follows:

a-main fire burner b-ever open fire burner c-controller

10-gas circuit module

11-air inlet path 12-normally open fire air path 13-main air path

14 a-normally open fire electromagnetic proportional valve 14 b-main fire electromagnetic proportional valve

15 a-normally open fire electromagnetic switch valve 15 b-main fire electromagnetic switch valve

16 a-a first parallel branch gas path 16 b-a second parallel branch gas path

16 c-a third parallel branch gas path 16 d-a fourth parallel branch gas path

17-control switch 18-one-way ball valve

19 a-main fire regulating valve 19 b-normally open fire regulating valve

19 c-gas pressure stabilizing valve 19 d-throttle valve

20-air path module 21-fan

22 a-first parallel air passage 22 b-second parallel air passage 23-damper

24-angle sensor 25-front air door

25 a-observation plate 25 b-waist-shaped adjusting hole 25 c-anchor column

Detailed Description

For ease of understanding, the specific construction and operation of the present invention will be further described herein with reference to the application embodiment of the one-way ball valve 18:

referring to fig. 1 to 9, the main structure of the present invention includes two major components, namely, an air path module 10 and an air path module 20. Wherein: the gas circuit module 10 comprises a gas inlet circuit 11 communicated with a gas source, a main gas control module, a standby gas control module, a control switch 17, a one-way ball valve 18, a main fire regulating valve 19a, a normally open fire regulating valve 19b, a gas pressure stabilizing valve 19c and a throttle valve 19 d. The air path module 20 mainly includes a wind pressure sampling tube, a normally open fire air intake opening, i.e., an air inlet of the second parallel air path 22b, a front air door 25, and a damper 23 sequentially arranged from front to back.

For the duct module 20, the front damper 25 functions as a pre-adjustment and a rough adjustment, and the damper 23 directly realizes the precise air-air linkage adjustment on line, which are responsible for each of the first parallel ducts 22 a. The front air door 25 is constructed as shown in fig. 1-2, and the aim of visually regulating and controlling the opening and closing amplitude of the front air door 25 is fulfilled by observing the matching of the waist-shaped adjusting hole 25b at the plate 25a and the anchor column 25 c. The air inlet side of the front air door 25 is provided with a normally open fire air inlet, namely an air inlet of the second parallel air passage 22b, so that the action of the air door can not interfere with the normal operation of the normally open fire burner all the time. And a wind pressure sampling pipe is arranged in front of the normally open fire air intake so as to timely monitor the air outlet effect of the fan 21.

The damper 23 is one of the design core points of the present invention. The damper 23, as shown in fig. 1-2 and 7-9, includes a damper plate that is driven by a damper shaft to rotate. One end of the air door shaft penetrates through and extends out of one side wall of the first parallel air connecting passage 22a to form a driving end; the other end of the air door shaft extends out of the other side wall of the first parallel air passage 22a in the opposite direction, and then is connected with a signal input shaft of the angle sensor 24 through a coupler. Thus, each time the air door shaft rotates, the air door plate can be driven by the air door shaft to generate a controllable adjusting function for the air intake of the first parallel air passage 22 a. Once the air door shaft rotates, the angle sensor 24 captures the rotation angle of the air door shaft, and then transmits a signal to the controller c shown in fig. 3, and the controller c can control the main fire electromagnetic proportional valve 14b and the normally open fire electromagnetic proportional valve 14a to generate corresponding actions, so as to finally realize an accurate control effect.

In practical use, the fan 21 is usually installed at a lower position, and the operation and the driving end of the fan 21 at the same height realize wind-air linkage, which is obviously not friendly to the waist damage or the elderly cooks. Therefore, the chain transmission structure shown in fig. 1-2 can be considered to be designed, so that the gear at the driving end is linked to the driving wheel at the higher position of the stove in a chain transmission manner, and the aim of quickly operating the air damper 23 and even the whole air-air linkage system can be conveniently achieved on the premise of not bending over. Furthermore, the angle sensor 24 should be covered with a protective casing to minimize or even avoid the influence of the complex working environment of the kitchen on the relatively fragile and sensitive angle sensor 24.

Further, as is apparent from fig. 6, the main gas control module and the standby gas control module are parallel electrical circuits. Namely, the first parallel branch gas path 16a is communicated with the main gas path 13 at the main fire burner a through the main fire electromagnetic switch valve 15b, and the second parallel branch gas path 16b is communicated with the normally open fire gas path 12 at the normally open fire burner b through the normally open fire electromagnetic switch valve 15 a; the third parallel branch gas passage 16c communicates with the constant open flame gas passage 12 at the constant open flame burner b via the constant open flame electromagnetic proportional valve 14a, and the fourth parallel branch gas passage 16d communicates with the main gas passage 13 at the main flame burner a via the main flame electromagnetic proportional valve 14 b.

In actual use, because the main gas control module and the standby gas control module both adopt an electrically controllable solenoid valve structure, they can be controlled by an ignition controller, i.e. a controller c, and the working states mutually form a logical or relationship, and are switched by a three-position power switch, i.e. a control switch 17, as shown in fig. 3. The control switch 17 has three operation states of a stop mode, an operation mode, and a standby mode. Under the operating mode, main gas control module group intercommunication electric circuit is in operating condition, thereby the electric circuit of reserve gas control module group is not communicated and is in the stop condition. Under the standby mode, the main gas control module is not communicated with the electric circuit and is in a stop state, and the standby gas control module is communicated with the electric circuit and is in a working state. Under the stop mode, reserve gas control module group, main gas control module group all are in the stall state, and the machine is out of work. The standby gas control module can only provide the on-off function of gas, the on-off time is usually millisecond level, and the main fire electromagnetic proportional valve of the main gas control module can accurately control the opening and closing drift diameter and the required time of main gas. The standby gas control module plays a standby control role in the system, and under the standby mode, the normal open fire and the main fire can still normally operate, so that the practicability of the product is greatly improved, and the gas control system can be used in harsh working occasions with short fault clearing time of a gas control part of a stove.

For the check ball valve 18, which is vertically installed at the outlet side of the main gas control module as shown in fig. 3 to 6, the purpose of the vertical installation is to allow the ball inside the check ball valve 18 to be pressed down at the inlet valve of the check ball valve 18 by its own weight. The check ball valve 18 is in an open state in the direction of the gas flow path and in a closed state. When the main fire electromagnetic proportional valve 14b or the main fire electromagnetic switch valve 15b is instantly opened to enable the gas to be directly communicated with the main fire combustor a, or when the main gas path 13 has a long-handle gas ball valve, the main fire electromagnetic proportional valve 14b or the main fire electromagnetic switch valve 15b is opened in advance, so that when the gas is directly communicated with the main fire combustor a, the long-handle gas ball valve at the main gas path 13 is instantly opened and communicated with the main fire combustor a, the one-way ball valve 18 is vertically installed, when the gas passes through the one-way ball valve 18, the valve core inside can delay the opening speed and the angle under the action of self weight, and therefore the effect of preventing the pressure in the main gas path 13 shared by normal open fire and main fire from suddenly dropping is achieved, and the air inlet pressure is ensured. Of course, the check ball valve 18 may be replaced by a check damper valve, because the function of delaying the gas due to the momentary impact may be ensured by an elastic member such as a compression spring in the check damper valve without setting the valve in a vertical state, and therefore, the valve may be installed in a vertical state without limitation.

In actual use, as a further preferable scheme, various sensors can be arranged at each manual air intake adjusting part of the main fire burner a and the normally open fire burner b, and a controller c and a control program are matched. For the main fire, the sensor can sensitively sense the operation action of the cook on the main fire, and the set program is combined, the opening and closing speed of the main gas can be delayed through the program of the controller c, so that the functional defect that the normally open fire is easy to extinguish due to the instant opening and closing of the main fire is overcome from the angle of electrical control, and the normally open fire is protected from the influence of the opening and closing of the main gas together with the mechanical damping action of the one-way ball valve 18. For the normal open fire, the sensor can sharply judge whether the air supply amount of the normal open fire is proper or not according to the strength of the signal of the normal open fire ion probe, and make corresponding signal prompt, and judge the service life and the adverse trend of the ion probe according to the strength of the best measurable electric signal, so as to prompt a user to timely maintain and replace the ion probe and eliminate potential faults, thereby ensuring the long-term stable work of the machine. Even the main fire burner a can be matched with a flame ion probe and a controller c and an ion probe sampling judgment and control program, whether the main fire air supply quantity is proper or not can be sharply judged according to the strength of the main fire ion probe signal, corresponding signal reminding is made, and a user is reminded to properly adjust the opening degree of the main air valve and combine the actual main fire flame combustion working condition, so that the main fire is in the optimal combustion state. Meanwhile, the flame ion probe can also be arranged on a normally open flame burner b, and the purpose is to match a controller c and an ion probe sampling judgment and control program to judge whether the main flame air supply quantity is proper or not according to the strength of the main flame ion probe signal, and adjust the opening and closing of the corresponding main gas control module according to the program instruction of the controller c under the specific main flame power, so that the automatic closing and accurate negative feedback control of the main flame is realized.

In actual operation, the damper adjusting handle for controlling the rotation of the damper shaft shown in fig. 1-2 corresponds to different air volume supply positions, so that the damper adjusting handle is positioned at any corresponding position in a corresponding fire power range, and the excitation voltage of the corresponding electromagnetic proportional valve can be adjusted through the voltage output at the controller c, and finally the optimal air-fuel ratio matching value is achieved. Therefore, a mapping relation between the angle value of the position point of the air door adjusting handle and the excitation voltage value of the corresponding electromagnetic proportional valve needs to be obtained, and an angle-voltage mapping curve can be obtained through an experimental point tracing method; the single chip microcomputer records the curve and executes the curve in application, and accurate air-fuel ratio adjustment open-loop control can be achieved. After the stove equipment is designed and shaped, the overall gas resistance, the conduction capability and the air resistance and the conduction capability of a wind path are fixed; therefore, as long as the pressure of the fuel gas input into the equipment is kept constant by the fuel gas pressure stabilizing valve, the air-fuel ratio curve corresponding to any fuel gas with any heat value can be determined by an angle-voltage mapping curve; the specific working logic is as follows: firstly, electrifying equipment, starting a fan and pre-purging a hearth; secondly, the ignition controller ignites normally-the high level at the position of the angle sensor 24 is uploaded to the controller c-the system is in a standby state; thirdly, when the air door adjusting handle is pulled to a certain position, the angle sensor 24 uploads the angle value to the singlechip serving as the controller c. The single chip microcomputer outputs corresponding excitation voltage to the corresponding electromagnetic proportional valve according to a corresponding curve/numerical value mapping table of angle-voltage prestored, so that the corresponding opening degree of the gas valve is kept according to the excitation voltage; therefore, the aim of accurately adjusting and controlling the air-fuel ratio of the stove in the full-firepower application range can be fulfilled.

It will, of course, be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

The techniques, shapes, and configurations not described in detail in the present invention are all known techniques.

Claims

1. A wind-air linkage control device with a wind-air control function comprises a gas path module (10) and a wind path module (20); the method is characterized in that: the air path module (10) comprises an air inlet path (11) communicated with an air source, and an electromagnetic proportional valve used for controlling the air inlet amount of the air inlet path (11) is arranged at the air inlet path; the air path module (20) comprises a fan (21), the air outlet end of the fan (21) is communicated with the air inlet path, a damper (23) is arranged on the air inlet path, the damper (23) is driven by a damper shaft to adjust the air inlet amount of the air inlet path, and an angle sensor (24) for monitoring the rotation angle of the damper shaft is arranged beside the damper shaft; the signal output end of the angle sensor (24) is electrically connected with the signal input end of the controller, and the signal output end of the controller is electrically connected with the electromagnetic proportional valve.

2. The wind-pneumatic linkage control device with a wind-controlled function according to claim 1, characterized in that: the air inlet channels (11) are parallel air channels, the electromagnetic proportional valve comprises a main fire electromagnetic proportional valve (14b) and a normally open fire electromagnetic proportional valve (14a), one group of parallel air channels are communicated to the air inlet of the main fire burner through the main fire electromagnetic proportional valve (14b), and the other group of parallel air channels are communicated to the air inlet of the normally open fire burner through the normally open fire electromagnetic proportional valve (14 a); the air inlet path comprises a first parallel air passage (22a) and a second parallel air passage (22b), the first parallel air passage (22a) is communicated to an air inlet of the main fire burner, and the second parallel air passage (22b) is communicated to an air inlet of the normally open fire burner; the damper (23) is disposed on the first parallel air passage (22a) to open and close and adjust the intake air amount of the first parallel air passage (22 a).

3. The wind-pneumatic linkage control device with a wind-controlled function according to claim 2, characterized in that: the first parallel air passage (22a) is also provided with a front air door (25) for preliminarily adjusting the air inlet amount of the first parallel air passage (22a), and the front air door (25) is arranged at a section of air inlet pipeline between the adjusting air door (23) and the second parallel air passage (22 b).

4. The wind-pneumatic linkage control device with a wind-controlled function according to claim 3, characterized in that: an observation plate (25a) convenient for visual measurement of intake air is arranged at the front air door (25), the observation plate (25a) is fan-shaped and plate-shaped, and scales are arranged on the outer side of the observation plate (25 a); an arc-shaped waist-shaped adjusting hole (25b) penetrates through the observation plate (25a), and the axis of a hole-shaped curve of the waist-shaped adjusting hole (25b) is coaxial with the axis of a door shaft of the front air door (25); an anchor post (25c) is convexly arranged on the outer wall of the air inlet pipeline, and the anchor post (25c) extends outwards along the path of the air inlet pipe and penetrates into the waist-shaped adjusting hole cavity; the anchor post (25c) and the waist-shaped adjusting hole form a hole-shaft plug-in type sliding fit relation.

5. The wind-pneumatic linkage control device with a wind-controlled pneumatic function according to claim 2, 3 or 4, characterized in that: the gas circuit module (10) also comprises a main fire electromagnetic switch valve (15b) and a normally open fire electromagnetic switch valve (15 a); the normally open fire electromagnetic proportional valve (14a) and the main fire electromagnetic proportional valve (14b) are connected in parallel to form the main gas control module, and the normally open fire electromagnetic switch valve (15a) and the main fire electromagnetic switch valve (15b) are connected in parallel to form the standby gas control module; the air outlet of the main air passage (13) is divided into four groups of branch air passages which are connected in parallel; the first parallel branch gas path (16a) is communicated with a main gas path (13) at the main fire burner through a main fire electromagnetic switch valve (15b), and the second parallel branch gas path (16b) is communicated with a normally open fire gas path (12) at the normally open fire burner through a normally open fire electromagnetic switch valve (15 a); the third parallel branch gas path (16c) is communicated with a normally open flame gas path (12) at the normally open flame burner through a normally open flame electromagnetic proportional valve (14a), and the fourth parallel branch gas path (16d) is communicated with a main gas path (13) at the main flame burner through a main flame electromagnetic proportional valve (14 b); the gas circuit module (10) further comprises a control switch (17) for realizing one conduction of a gas outlet path of the gas inlet circuit (11) between the main gas control module and the standby gas control module, and the control switch (17) is electrically connected with control ends of the four groups of parallel branch gas circuits through a controller.

6. The wind-pneumatic linkage control device with a wind-controlled function according to claim 5, characterized in that: the gas circuit module (10) further comprises a one-way damping valve for delaying the instantaneous inrush speed of gas in the gas inlet circuit (11) to the main fire burner, and the flowing direction of the gas in the main gas circuit (13) is the one-way conduction direction of the one-way damping valve.

7. The wind-pneumatic linkage control device with a wind-controlled function according to claim 5, characterized in that: the gas circuit module (10) further comprises a one-way ball valve (18) for delaying the instantaneous inrush speed of gas in the gas inlet circuit (11) to the main fire burner, the gas passing path of the one-way ball valve (18) is vertically arranged, and the gas in the main gas circuit (13) flows from bottom to top in a vertical direction, and the flowing direction of the gas is the one-way conduction direction of the one-way ball valve (18).

8. The wind-pneumatic linkage control device with a wind-controlled function according to claim 5, characterized in that: the gas circuit module (10) further comprises a main fire adjusting valve (19a) used for adjusting the ventilation volume of the main gas circuit (13) and a normally open fire adjusting valve (19b) used for adjusting the ventilation volume of the normally open fire gas circuit, the normally open fire adjusting valve (19b) is arranged at the normally open fire gas circuit (12), and the main fire adjusting valve (19a) is arranged at the main gas circuit (13).

9. The wind-pneumatic linkage control device with a wind-controlled function according to claim 8, characterized in that: the main fire regulating valve (19a) and the normally open fire regulating valve (19b) are both long-handle gas ball valves.

10. The wind-pneumatic linkage control device with the wind-controlled pneumatic function according to claim 1, 2, 3 or 4, wherein: a gas pressure stabilizing valve (19c) and a throttle valve (19d) are sequentially arranged on the gas inlet passage (11) along the gas passing direction.