Air and fuel gas integrated regulating valve and heat supply system

Abstract

The utility model discloses an air and gas integrated regulating valve and a heat supply system. The air and gas integrated regulating valve comprises an air valve cavity, an air valve plug, a gas valve cavity, a gas valve plug and a valve plug synchronous linkage mechanism. The valve plug synchronous linkage mechanism comprises a driving motor, a transmission device and a synchronous rotating rod. Through the mechanical rigid linkage double-valve-plug design, synchronous opening and closing of the corresponding air outlets and gas outlets can be guaranteed from the mechanical level, and the pulse combustion heat supply effect is improved; and meanwhile, the opening and closing period of each gas outlet can be conveniently adjusted by adjusting the rotating speed of the synchronous rotating rod, so that the flexible adjustment and control of the switching period of the burners are realized. In addition, the device has the advantages of being simple in overall structure, accurate in adjusting precision, high in flexibility, good in practicability, easy to popularize and apply in a large scale and the like.

Description

Technical Field

[0001] The utility model relates to a combustion heating device, in particular to an air-gas integrated regulating valve and a heating system including the same, belonging to the technical field of combustion heating devices. Background Art

[0002] Pulse combustion technology is a low NOx combustion control technology applied in industrial furnaces. It usually combines several burners into a heating unit and periodically switches the burners participating in combustion within the group, so that the flame constantly switches in the furnace, thereby avoiding overheating in local areas caused by fixed flames, and reducing the generation of NOx during the combustion process. To achieve the smoothness of burner heating, the period of pulse combustion is generally set very short, which poses high requirements for the response speed of the burner valve action and the action consistency between the air and gas valves.

[0003] In the pulse control of the prior art, the air and gas valves of the burner are separately controlled by two independent electromagnetic valves. When the burner needs to work, the air-side solenoid valve and the gas-side solenoid valve are opened simultaneously; when the burner needs to be closed, the air-side solenoid valve and the gas-side solenoid valve are closed simultaneously. Through the synchronous action of the air-side and gas-side solenoid valves, the rapid opening and closing of the burner are realized. However, since there is no mechanical consistency and synchronism between the air-side and gas-side solenoid valves, during frequent opening and closing operations, it is easy to occur that the actions of the two solenoid valves are out of sync, resulting in the problem of fuel-air mismatch and affecting the combustion heating effect. Summary of the Utility Model

[0004] Aiming at the problem in the prior art that the independent control of the air-side solenoid valve and the gas-side solenoid valve causes inconsistent actions between the two solenoid valves, which in turn leads to fuel-air mismatch and affects the combustion heating effect, the utility model provides an air-gas integrated regulating valve and a heating system including the same. Through the design of double valve plugs with mechanical rigid linkage, the synchronous linkage action of the air-side and gas-side solenoid valves is ensured, and the purpose of synchronous connection and closing of air and gas is realized, greatly improving the effect of pulse combustion heating.

[0005] To achieve the above technical purpose, the technical solutions adopted by the utility model are as follows:

[0006] According to the first implementation scheme of the utility model, an air-gas integrated regulating valve is provided:

[0007] An air-gas integrated regulating valve, which includes an air valve chamber, an air valve plug, a gas valve chamber, a gas valve plug, and a valve plug synchronous linkage mechanism. An air inlet and an air outlet are provided on the air valve chamber, and a gas inlet and a gas outlet are provided on the gas valve chamber. The air valve plug is arranged in the air valve chamber to control the connection and closure between the air outlet and the air valve chamber. The gas valve plug is arranged in the gas valve chamber to control the connection and closure between the gas outlet and the gas valve chamber. The valve plug synchronous linkage mechanism is connected to both the air valve plug and the gas valve plug at the same time, and the synchronous actions of the air valve plug and the gas valve plug are controlled through the valve plug synchronous linkage mechanism.

[0008] Preferably, the air valve chamber is a closed tubular structure. The air inlet is provided on the axial side wall of the air valve chamber, and the air outlet is provided on the radial side wall of the air valve chamber.

[0009] Preferably, the gas valve chamber is a closed tubular structure. The gas inlet is provided on the axial side wall of the gas valve chamber, and the gas outlet is provided on the radial side wall of the gas valve chamber.

[0010] Preferably, a plurality of air outlets are evenly provided in the circumferential direction of the radial side wall of the air valve chamber, and a plurality of gas outlets are evenly provided in the circumferential direction of the radial side wall of the gas valve chamber. Each air outlet is correspondingly paired with a gas outlet. When the air valve plug is controlled by the valve plug synchronous linkage mechanism to open or close any air outlet, the gas valve plug is also controlled to synchronously open or close the gas outlet paired with this air outlet.

[0011] Preferably, the air valve plug is an arc-shaped rotary valve plug attached to the inner wall of the air valve chamber. The gas valve plug is an arc-shaped rotary valve plug attached to the inner wall of the gas valve chamber.

[0012] Preferably, the arc length of the air valve plug is such that when the air valve plug rotates in the air valve chamber, only one air outlet is always connected to the air valve chamber. The arc length of the gas valve plug is such that when the gas valve plug rotates in the gas valve chamber, only one gas outlet is always connected to the gas valve chamber.

[0013] Preferably, the valve plug synchronous linkage mechanism includes a driving motor, a transmission device, and a synchronous rotating rod. Both ends of the synchronous rotating rod are respectively connected to the air valve plug and the gas valve plug through independent connecting rods. The driving motor is connected to the rod body of the synchronous rotating rod through the transmission device. The driving motor drives the synchronous rotating rod to rotate through the transmission device, thereby realizing the synchronous rotation of the air valve plug and the gas valve plug.

[0014] Preferably, the transmission device is a variable-speed transmission device. Preferably, the variable-speed transmission device is an adjustable transmission gear combination or an adjustable transmission sprocket combination.

[0015] According to the second embodiment of the present utility model, a heating system is provided:

[0016] A heating system, which includes an air main pipe, a gas main pipe, a burner, an industrial furnace, and an air-gas integrated regulating valve as described in the first embodiment. The air main pipe is connected to the air inlet of the air-gas integrated regulating valve, and the gas main pipe is connected to the gas inlet of the air-gas integrated regulating valve. The air outlet of the air-gas integrated regulating valve is connected to the air inlet pipe of the burner through an air branch pipe, and the gas outlet of the air-gas integrated regulating valve is connected to the gas inlet pipe of the burner through a gas branch pipe. The burner is arranged inside the industrial furnace.

[0017] Preferably, a plurality of burners are arranged inside the industrial furnace. Each burner is respectively connected to the air inlet and the gas inlet of the air-gas integrated regulating valve through an independent air branch pipe and a gas branch pipe, and the closing and opening of the air inlet and the gas inlet connected to the same burner are synchronously linked.

[0018] Preferably, the connections between the air main pipe and the air inlet, between the air branch pipe and the air outlet, between the gas main pipe and the gas inlet, and between the gas branch pipe and the gas outlet are all flange connections.

[0019] In the prior art, the existing pulse combustion heating system mainly consists of an air main pipe, a gas main pipe, an air branch pipe, a gas branch pipe, an air-side solenoid valve, a gas-side solenoid valve, a burner, an industrial furnace chamber, etc. (as shown in Figure 1 ) The air main pipe is connected to the burner through the air branch pipe, the gas main pipe is connected to the burner through the gas branch pipe, and the air-side solenoid valve and the gas-side solenoid valve are respectively arranged on the air branch pipe and the gas branch pipe. A number of burners are installed on the industrial furnace chamber as a heating unit. During operation, by controlling the switching of the air-side and gas-side solenoid valves of the corresponding burners, the switching of the flame between the burners is realized, so as to avoid the flame staying stably in a specific area for a long time, resulting in too high temperature in this area and a large amount of NOx generation. However, due to the lack of mechanical consistency and synchronism between the air-side and gas-side solenoid valves, during frequent opening and closing operations, it is easy for the actions of the two solenoid valves to be out of sync, resulting in the problem of mismatch between fuel and air, affecting the combustion effect. In view of the above deficiencies, the present utility model designs a valve plug synchronous linkage mechanism with a specific special structure, and then realizes the mechanical rigid linkage between the air valve plug and the gas valve plug, so as to ensure the synchronous linkage action of the air-side and gas-side solenoid valves, and further realizes the purpose of synchronous connection and closing of air and gas, greatly improving the effect of pulse combustion heating.

[0020] In the present utility model, the valve plug synchronous linkage mechanism mainly consists of a driving motor, a variable-speed transmission device, a synchronous rotating rod, etc. The air valve plug and the gas valve plug are connected by the synchronous rotating rod. The driving motor is connected to the synchronous rotating rod through the variable-speed transmission device. The rotation of the motor drives the synchronous rotating rod to rotate along the central axis, thereby driving the synchronous rotation of the air valve plug and the gas valve plug. During operation, the motor drives the synchronous rotating rod to rotate along the central axis through the variable-speed transmission device. The synchronous rotating rod drives the air valve plug and the gas valve plug to rotate synchronously in the air valve cavity and the gas valve cavity respectively, realizing the opening and closing of the corresponding air and gas outlets. Since the air valve plug and the gas valve plug are connected by the same synchronous rotating rod, the synchronous opening and closing of the corresponding air outlet and gas outlet can be guaranteed at the mechanical level. At the same time, by adjusting the rotation speed of the synchronous rotating rod, the opening and closing cycle of each outlet can be conveniently adjusted. The faster the rotation speed, the shorter the switching cycle between the outlets; the slower the rotation speed, the longer the switching cycle between the outlets, thus realizing the flexible adjustment and control of the burner switching cycle.

[0021] In the present utility model, the air valve cavity and the gas valve cavity are closed tubular structures with the same structure, and the opening directions of their respective gas inlets (air inlet and gas inlet) and gas outlets (air outlet and gas outlet) are perpendicular to each other, that is, the gas inlets are opened on the axial side walls of the valve cavities (air valve cavity and gas valve cavity), while the gas outlets are opened on the radial side walls. It should be noted that the side walls of the air valve cavity and the gas valve cavity are generally closed circumferential side walls, and a plurality of gas outlets are evenly opened in the circumferential direction. By adjusting the valve plug, different gas outlets are connected to the inside of the valve cavity, that is, the linkage adjustment of multiple pairs of gas outlets is realized through the same valve plug synchronous linkage mechanism, and then the adjustment and control of multiple burners are realized.

[0022] In the present utility model, both the air valve plug and the gas valve plug are arc-shaped rotating valve plugs attached to the inner wall of the valve cavity. During the rotation of the valve plug, the gas outlet corresponding to the notch of the arc-shaped rotating valve plug can be connected to the inside of the valve cavity, thereby realizing the connection between the gas outlet and the gas inlet. It should be noted that no matter how the valve plug rotates, the notch of the valve plug will always correspond to only one gas outlet, that is, during the rotation of the valve plug, the valve cavity can only be connected to one gas outlet. Therefore, through the action of the air-gas integrated regulating valve, the synchronous opening and closing of the air branch pipe and the gas branch pipe of a single burner can be realized, and then the switching of gas and air between burners can be realized simultaneously.

[0023] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0024] 1: The air valve plug and the gas valve plug of the air-gas integrated regulating valve of the present utility model are connected by the same synchronous rotating rod. Therefore, the synchronous opening and closing of the corresponding air outlet and gas outlet can be ensured at the mechanical level. At the same time, by adjusting the rotation speed of the synchronous rotating rod, the opening and closing cycle of each gas outlet can be conveniently adjusted. The faster the rotation speed, the shorter the switching cycle between the outlets, and the slower the rotation speed, the longer the switching cycle between the outlets, so as to realize the flexible adjustment and control of the burner switching cycle.

[0025] 2: The overall structure of the present utility model is simple, the adjustment accuracy is accurate, the flexibility is strong, the practicability is good, and it is easy to be popularized and applied on a large scale. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of a pulse combustion heating system of the prior art.

[0027] Figure 2 It is a schematic structural diagram of the air-gas integrated regulating valve of the present utility model.

[0028] Figure 3 It is a schematic structural diagram of the radial cross-section of the air valve cavity of the present utility model.

[0029] Figure 4 It is a schematic structural diagram of a heating system with an air-gas integrated regulating valve of the present utility model.

[0030] Reference Numerals: 1: air valve cavity; 101: air inlet; 102: air outlet; 2: air valve plug; 3: gas valve cavity; 301: gas inlet; 302: gas outlet; 4: gas valve plug; 5: valve plug synchronous linkage mechanism; 501: drive motor; 502: transmission device; 503: synchronous rotating rod; 504: connecting rod; 6: air main pipe; 7: gas main pipe; 8: burner; 9: industrial furnace. Detailed Embodiments

[0031] The technical solutions of the present utility model will be illustrated by examples below. The scope of protection claimed by the present utility model includes but is not limited to the following embodiments.

[0032] An air-gas integrated regulating valve, which includes an air valve cavity 1, an air valve plug 2, a gas valve cavity 3, a gas valve plug 4, and a valve plug synchronous linkage mechanism 5. An air inlet 101 and an air outlet 102 are provided on the air valve cavity 1, and a gas inlet 301 and a gas outlet 302 are provided on the gas valve cavity 3. The air valve plug 2 is arranged in the air valve cavity 1 to control the connection and closure between the air outlet 102 and the air valve cavity 1. The gas valve plug 4 is arranged in the gas valve cavity 3 to control the connection and closure between the gas outlet 302 and the gas valve cavity 3. The valve plug synchronous linkage mechanism 5 is connected to both the air valve plug 2 and the gas valve plug 4 at the same time, and the synchronous actions of the air valve plug 2 and the gas valve plug 4 are controlled through the valve plug synchronous linkage mechanism 5.

[0033] Preferably, the air valve cavity 1 is a closed tubular structure, the air inlet 101 is opened on the axial side wall of the air valve cavity 1, and the air outlet 102 is opened on the radial side wall of the air valve cavity 1.

[0034] Preferably, the gas valve cavity 3 is a closed tubular structure, the gas inlet 301 is opened on the axial side wall of the gas valve cavity 3, and the gas outlet 302 is opened on the radial side wall of the gas valve cavity 3.

[0035] Preferably, a plurality of air outlets 102 are evenly opened in the circumferential direction of the radial side wall of the air valve cavity 1, and a plurality of gas outlets 302 are evenly opened in the circumferential direction of the radial side wall of the gas valve cavity 3. Each air outlet 102 is paired with a corresponding gas outlet 302. When the air valve plug 2 is controlled by the valve plug synchronous linkage mechanism 5 to open or close any one of the air outlets 102, the gas valve plug 4 is also controlled to synchronously open or close the gas outlet 302 paired with this air outlet 102.

[0036] Preferably, the air valve plug 2 is an arc-shaped rotary valve plug attached to the inner wall of the air valve cavity 1. The gas valve plug 4 is an arc-shaped rotary valve plug attached to the inner wall of the gas valve cavity 3.

[0037] Preferably, the arc length of the air valve plug 2 is such that when the air valve plug 2 rotates in the air valve cavity 1, only one air outlet 102 is always in communication with the air valve cavity 1. The arc length of the gas valve plug 4 is such that when the gas valve plug 4 rotates in the gas valve cavity 3, only one gas outlet 302 is always in communication with the gas valve cavity 3.

[0038] Preferably, the valve plug synchronous linkage mechanism 5 includes a driving motor 501, a transmission device 502, and a synchronous rotating rod 503. Both ends of the synchronous rotating rod 503 are respectively connected to the air valve plug 2 and the gas valve plug 4 through independent connecting rods 504. The driving motor 501 is connected to the rod body of the synchronous rotating rod 503 through the transmission device 502. The driving motor 501 drives the synchronous rotating rod 503 to rotate through the transmission device 502, thereby realizing the synchronous rotation of the air valve plug 2 and the gas valve plug 4.

[0039] Preferably, the transmission device 502 is a variable-speed transmission device. Preferably, the variable-speed transmission device is an adjustable transmission gear combination or an adjustable transmission sprocket combination.

[0040] A heating system, which includes an air main pipe 6, a gas main pipe 7, a burner 8, an industrial furnace 9, and an air-gas integrated regulating valve as described in the first embodiment. The air main pipe 6 is communicated with the air inlet 101 of the air-gas integrated regulating valve, and the gas main pipe 7 is communicated with the gas inlet 301 of the air-gas integrated regulating valve. The air outlet 102 of the air-gas integrated regulating valve is communicated with the air inlet pipe of the burner 8 through an air branch pipe 601, and the gas outlet 302 of the air-gas integrated regulating valve is communicated with the gas inlet pipe of the burner 8 through a gas branch pipe 701. The burner 8 is arranged in the industrial furnace 9.

[0041] Preferably, a plurality of burners 8 are arranged in the industrial furnace 9. Each burner 8 is respectively communicated with the air inlet 101 and the gas inlet 301 of the air-gas integrated regulating valve through independent air branch pipes 601 and gas branch pipes 701, and the closing and opening of the air inlet 101 and the gas inlet 301 communicated with the same burner 8 are synchronously linked.

[0042] Preferably, the connections between the air main pipe 6 and the air inlet 101, between the air branch pipe 601 and the air outlet 102, between the gas main pipe 7 and the gas inlet 301, and between the gas branch pipe 701 and the gas outlet 302 are all flange connections. Embodiment 1

[0043] As Figure 2-3As shown in the figure, an air-gas integrated regulating valve, the air-gas integrated regulating valve includes an air valve cavity 1, an air valve plug 2, a gas valve cavity 3, a gas valve plug 4 and a valve plug synchronous linkage mechanism 5. An air inlet 101 and an air outlet 102 are provided on the air valve cavity 1, and a gas inlet 301 and a gas outlet 302 are provided on the gas valve cavity 3. The air valve plug 2 is arranged in the air valve cavity 1 to control the connection and closure between the air outlet 102 and the air valve cavity 1. The gas valve plug 4 is arranged in the gas valve cavity 3 to control the connection and closure between the gas outlet 302 and the gas valve cavity 3. The valve plug synchronous linkage mechanism 5 is connected to both the air valve plug 2 and the gas valve plug 4 at the same time, and the synchronous actions of the air valve plug 2 and the gas valve plug 4 are controlled through the valve plug synchronous linkage mechanism 5. Example 2

[0044] Repeat Example 1, except that the air valve cavity 1 is a closed tubular structure, the air inlet 101 is opened on the axial side wall of the air valve cavity 1, and the air outlet 102 is opened on the radial side wall of the air valve cavity 1. Example 3

[0045] Repeat Example 2, except that the gas valve cavity 3 is a closed tubular structure, the gas inlet 301 is opened on the axial side wall of the gas valve cavity 3, and the gas outlet 302 is opened on the radial side wall of the gas valve cavity 3. Example 4

[0046] Repeat Example 3, except that a plurality of air outlets 102 are evenly opened in the circumferential direction of the radial side wall of the air valve cavity 1, and a plurality of gas outlets 302 are evenly opened in the circumferential direction of the radial side wall of the gas valve cavity 3. Each air outlet 102 is paired with a corresponding gas outlet 302. When the air valve plug 2 is controlled by the valve plug synchronous linkage mechanism 5 to open or close any one of the air outlets 102, the gas valve plug 4 is also controlled to synchronously open or close the gas outlet 302 paired with the air outlet 102 at the same time. Example 5

[0047] Repeat Example 4, except that the air valve plug 2 is an arc-shaped rotary valve plug attached to the inner wall of the air valve cavity 1. The gas valve plug 4 is an arc-shaped rotary valve plug attached to the inner wall of the gas valve cavity 3. Example 6

[0048] Repeat Example 5, except that the arc length of the air valve plug 2 is such that only one air outlet 102 is always in communication with the air valve cavity 1 when the air valve plug 2 rotates in the air valve cavity 1. The arc length of the gas valve plug 4 is such that only one gas outlet 302 is always in communication with the gas valve cavity 3 when the gas valve plug 4 rotates in the gas valve cavity 3. Example 7

[0049] Repeat Example 6, except that the valve plug synchronous linkage mechanism 5 includes a driving motor 501, a transmission device 502, and a synchronous rotating rod 503. Both ends of the synchronous rotating rod 503 are respectively connected to the air valve plug 2 and the gas valve plug 4 through independent connecting rods 504. The driving motor 501 is connected to the rod body of the synchronous rotating rod 503 through the transmission device 502. The driving motor 501 drives the synchronous rotating rod 503 to rotate through the transmission device 502, thereby realizing the synchronous rotation of the air valve plug 2 and the gas valve plug 4. Example 8

[0050] Repeat Example 7, except that the transmission device 502 is a variable-speed transmission device. Example 9

[0051] Repeat Example 8, except that the variable-speed transmission device is an adjustable transmission gear combination. Example 10

[0052] As Figure 4 shown, a heating system includes an air main pipe 6, a gas main pipe 7, a burner 8, an industrial furnace 9, and an air-gas integrated regulating valve as described in the first implementation. The air main pipe 6 is communicated with the air inlet 101 of the air-gas integrated regulating valve, and the gas main pipe 7 is communicated with the gas inlet 301 of the air-gas integrated regulating valve. The air outlet 102 of the air-gas integrated regulating valve is communicated with the air inlet pipe of the burner 8 through an air branch pipe 601, and the gas outlet 302 of the air-gas integrated regulating valve is communicated with the gas inlet pipe of the burner 8 through a gas branch pipe 701. The burner 8 is arranged in the industrial furnace 9. Example 11

[0053] Repeat Example 10, except that a plurality of burners 8 are arranged in the industrial furnace 9. Each burner 8 is respectively communicated with the air inlet 101 and the gas inlet 301 of the air-gas integrated regulating valve through independent air branch pipes 601 and gas branch pipes 701, and the closing and opening of the air inlet 101 and the gas inlet 301 communicated with the same burner 8 are synchronously linked. Example 12

[0054] Repeat Example 11, except that the connections between the air main pipe 6 and the air inlet 101, between the air branch pipe 601 and the air outlet 102, between the gas main pipe 7 and the gas inlet 301, and between the gas branch pipe 701 and the gas outlet 302 are all flange connections.

Claims

1. An air and gas integrated regulating valve, characterized in that: The air-gas integrated regulating valve includes an air valve chamber (1), an air valve plug (2), a gas valve chamber (3), a gas valve plug (4), and a valve plug synchronous linkage mechanism (5); an air inlet (101) and an air outlet (102) are provided on the air valve chamber (1), and a gas inlet (301) and a gas outlet (302) are provided on the gas valve chamber (3); the air valve plug (2) is arranged in the air valve chamber (1) to control the connection and closure between the air outlet (102) and the air valve chamber (1); the gas valve plug (4) is arranged in the gas valve chamber (3) to control the connection and closure between the gas outlet (302) and the gas valve chamber (3); the valve plug synchronous linkage mechanism (5) is connected to both the air valve plug (2) and the gas valve plug (4) at the same time, and the synchronous movement of the air valve plug (2) and the gas valve plug (4) is controlled through the valve plug synchronous linkage mechanism (5).

2. The air and gas integrated regulating valve according to claim 1, characterized in that: The air valve chamber (1) is a closed tubular structure, the air inlet (101) is opened on the axial side wall of the air valve chamber (1), and the air outlet (102) is opened on the radial side wall of the air valve chamber (1); The gas valve chamber (3) is a closed tubular structure, the gas inlet (301) is opened on the axial side wall of the gas valve chamber (3), and the gas outlet (302) is opened on the radial side wall of the gas valve chamber (3).

3. The air and gas integrated regulating valve according to claim 2, wherein: A plurality of air outlets (102) are evenly opened in the circumferential direction of the radial side wall of the air valve chamber (1), and a plurality of gas outlets (302) are evenly opened in the circumferential direction of the radial side wall of the gas valve chamber (3); each air outlet (102) is paired with a corresponding gas outlet (302); when the air valve plug (2) is controlled by the valve plug synchronous linkage mechanism (5) to open or close any air outlet (102), the gas valve plug (4) is also controlled to synchronously open or close the gas outlet (302) paired with the air outlet (102).

4. The air and gas integrated regulating valve according to claim 2 or 3, characterized in that: The air valve plug (2) is an arc-shaped rotary valve plug attached to the inner wall of the air valve chamber (1); the gas valve plug (4) is an arc-shaped rotary valve plug attached to the inner wall of the gas valve chamber (3).

5. The air and gas integrated regulating valve according to claim 4, characterized in that: The arc length of the air valve plug (2) is such that when the air valve plug (2) rotates in the air valve chamber (1), only one air outlet (102) is always connected to the air valve chamber (1); the arc length of the gas valve plug (4) is such that when the gas valve plug (4) rotates in the gas valve chamber (3), only one gas outlet (302) is always connected to the gas valve chamber (3).

6. The air and gas integrated regulating valve according to any one of claims 1-3 and 5, characterized in that: The valve plug synchronous linkage mechanism (5) includes a driving motor (501), a transmission device (502), and a synchronous rotating rod (503); both ends of the synchronous rotating rod (503) are connected to the air valve plug (2) and the gas valve plug (4) respectively through independent connecting rods (504); the driving motor (501) is connected to the rod body of the synchronous rotating rod (503) through the transmission device (502); the driving motor (501) drives the synchronous rotating rod (503) to rotate through the transmission device (502), thereby realizing the synchronous rotation of the air valve plug (2) and the gas valve plug (4).

7. The air and gas integrated regulating valve according to claim 4, wherein: The valve plug synchronous linkage mechanism (5) includes a driving motor (501), a transmission device (502), and a synchronous rotating rod (503); both ends of the synchronous rotating rod (503) are respectively connected to the air valve plug (2) and the gas valve plug (4) through independent connecting rods (504); the driving motor (501) is connected to the rod body of the synchronous rotating rod (503) through the transmission device (502); the driving motor (501) drives the synchronous rotating rod (503) to rotate through the transmission device (502), thereby realizing the synchronous rotation of the air valve plug (2) and the gas valve plug (4).

8. The air and gas integrated regulating valve according to claim 6, wherein: The transmission device (502) is a variable-speed transmission device.

9. The air and gas integrated regulating valve according to claim 7, characterized in that: The transmission device (502) is a variable-speed transmission device.

10. The air and gas integrated regulating valve according to claim 8 or 9, characterized in that: The variable-speed transmission device is an adjustable transmission gear combination or an adjustable transmission sprocket combination.

11. A heating system, characterized in that: The system includes an air main pipe (6), a gas main pipe (7), a burner (8), an industrial furnace (9), and an air-gas integrated regulating valve as described in any one of claims 1-10; the air main pipe (6) is communicated with the air inlet (101) of the air-gas integrated regulating valve, and the gas main pipe (7) is communicated with the gas inlet (301) of the air-gas integrated regulating valve; the air outlet (102) of the air-gas integrated regulating valve is communicated with the air inlet pipe of the burner (8) through an air branch pipe (601), and the gas outlet (302) of the air-gas integrated regulating valve is communicated with the gas inlet pipe of the burner (8) through a gas branch pipe (701); the burner (8) is arranged in the industrial furnace (9).

12. The system according to claim 11, wherein: A plurality of burners (8) are arranged in the industrial furnace (9); each burner (8) is respectively communicated with the air inlet (101) and the gas inlet (301) of the air-gas integrated regulating valve through independent air branch pipes (601) and gas branch pipes (701), and the closing and opening of the air inlet (101) and the gas inlet (301) communicated with the same burner (8) are synchronously linked.

13. The system according to claim 12, characterized in that: The connections between the air main pipe (6) and the air inlet (101), between the air branch pipe (601) and the air outlet (102), between the gas main pipe (7) and the gas inlet (301), and between the gas branch pipe (701) and the gas outlet (302) are all flange connections.

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