Sealing structure of horizontal pushing valve of heat storage combustion furnace

Abstract

The utility model relates to the technical field of horizontal pushing valve sealing, and discloses a sealing structure of a horizontal pushing valve of a heat storage combustion furnace, which comprises a cylinder and a tuyere plate, a fixed frame I is fixedly arranged on the outer surface of the cylinder, and a self-centering connecting rod is fixedly arranged on an output shaft of the cylinder. According to the sealing structure of the horizontal pushing valve of the heat storage combustion furnace, buffering can be provided through the limiting pad when the valve plate assembly is closed, abrasion and noise generated by collision between the valve plate body and other parts are reduced, the structural integrity of the valve plate assembly and the related parts is protected, the service life of the valve is prolonged, and the strength and rigidity of the valve plate body are enhanced through the reinforcing ribs; the valve plate is not prone to deformation when bearing impact of high-temperature and high-pressure waste gas, the sealing performance and the normal closing function of the valve are guaranteed, the reliability and stability of the valve under severe working conditions are improved, stable operation of the heat storage combustion furnace is guaranteed, the reinforcing ribs enable the valve plate to be not prone to deformation, and it is guaranteed that the valve plate is consistent with the central axis of the air inlet and the central axis of the air outlet under the condition that the strength is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to flat -push valve sealing technical field, concretely is a kind of sealing structure of flat -push valve of heat accumulation combustion furnace. BACKGROUND

[0002] With the acceleration of industrialization, the emission of volatile organic compounds becomes one of the important sources of environmental pollution, and many industries such as chemical industry, coating, printing, pharmaceutical industry will produce a large amount of waste gas containing volatile organic compounds in the production process, which not only causes serious damage to atmospheric environmental quality, causing photochemical smog, ozone layer destruction and other environmental problems, but also harms human health, such as stimulating respiratory tract, damaging nervous system, etc. Therefore, the effective treatment of volatile organic compound waste gas becomes the key task in the field of environmental protection.

[0003] In the volatile organic compound treatment system, heat accumulation combustion furnace is often needed, which can recover and store heat energy to complete the combustion treatment of waste gas with small burner power. The device has two or three internal heat accumulation chambers. When the waste gas enters from a heat accumulation chamber that has accumulated heat energy, it absorbs heat and burns, and the gas after combustion is discharged from another heat accumulation chamber and accumulates heat energy for the heat accumulation chamber. Therefore, the valve for controlling the switching of the gas accumulation chamber needs to have large diameter and flexible opening and closing, and the flat push valve is usually used. The flat push valve indeed has the advantage of no friction loss, but there is still room for improvement in sealing.

[0004] Chinese utility model patent publication No. CN 221704577 U discloses a flat push valve with limiting feedback function. The flat push valve with limiting feedback function increases a rotation-stopping pad between the gas cylinder extension end gas rod and the coupling, fixes the plane angle of the gas cylinder extension end gas rod and the coupling respectively when the extension amount of the gas cylinder is adjusted, and ensures the constant distance between the gas cylinder and the valve plate. The sealing property of the valve is improved. However, the flat push valve with limiting feedback function does not design a reinforcing component, which easily leads to low strength and rigidity of the valve plate, easy deformation under the impact of high-temperature and high-pressure waste gas, affects normal use, and is not convenient for increasing the contact area between the valve plate and the inlet and outlet air ports, which easily leads to low air tightness. SUMMARY

[0005] The utility model solves the technical problem that the existing technology does not design a reinforcing component, which easily leads to low strength and rigidity of the valve plate, easy deformation under the impact of high-temperature and high-pressure waste gas, affects normal use, and is not convenient for increasing the contact area between the valve plate and the inlet and outlet air ports, which easily leads to low air tightness.

[0006] The utility model discloses a technical scheme adopted is: a kind of sealing structure of flat -sliding valve of regenerative combustion furnace, including cylinder and tuyere plate, the fixed mounting of fixed frame one is equipped on the outer surface of cylinder, the fixed mounting of self-aligning link is equipped on cylinder output shaft, the fixed mounting of outer box body sealing element is equipped on the other end of self-aligning link far from cylinder, the fixed mounting of guide wheel group and valve stem is equipped on the other end of outer box body sealing element far from self-aligning link, the fixed mounting of valve plate assembly is equipped on the other end of valve stem far from guide wheel group, the fixed mounting of fixed frame two is equipped on the one end of tuyere plate close to cylinder, recess is equipped on the outer surface of valve plate assembly, the fixed mounting of reinforcing rib is equipped on the outer surface of limit pad, the fixed mounting of locating bolt is equipped on the outer surface of reinforcing rib, the locating bolt passes through reinforcing rib and extends to the outer surface of valve plate body.

[0007] The valve plate assembly includes a valve plate body, a limit pad is fixedly installed on the outer surface of the valve plate body, a reinforcing rib is fixedly installed on the outer surface of the limit pad, and a locating bolt is arranged on the outer surface of the reinforcing rib.

[0008] Through the above technical scheme, the limit pad can provide buffering when the valve plate assembly is closed, reducing wear and noise caused by the collision between the valve plate body and other components, protecting the structural integrity of the valve plate assembly and related components, prolonging the service life of the valve, and the reinforcing rib enhances the strength and rigidity of the valve plate body, making it less likely to deform under high-temperature and high-pressure waste gas impact, ensuring the sealing performance and normal closing function of the valve, improving the reliability and stability of the valve under harsh working conditions, and ensuring the stable operation of the regenerative combustion furnace.

[0009] Preferably, the reinforcing rib is provided with two identical reinforcing ribs, and the two reinforcing ribs are symmetrically distributed about the center line of the valve plate body.

[0010] Through the above technical scheme, the symmetrically distributed reinforcing ribs make the valve plate body more evenly stressed, better resist deformation when subjected to waste gas pressure, avoid local deformation caused by uneven stress that affects the sealing effect, improve the overall stability and reliability of the valve plate assembly, further protect the sealing performance of the valve, and reduce the risk of waste gas leakage caused by poor sealing.

[0011] Preferably, the fixed frame two is fixedly installed with a sealing gasket at one end close to the cylinder, and the sealing gasket is adapted to the recess.

[0012] Through the above technical scheme, when the valve plate assembly is closed, the sealing gasket is accurately embedded in the recess of the valve plate assembly, forming a tight sealing contact, and the adaptive design of the sealing gasket and the recess provides an effective sealing method. When the valve plate assembly is closed, the sealing gasket fills the recess, preventing waste gas from leaking between the valve plate assembly and the tuyere plate, improving the sealing performance of the valve, reducing the amount of waste gas leakage, ensuring the processing efficiency of the regenerative combustion furnace, and also reducing the pollution to the environment.

[0013] Preferably, the outer box body sealing piece is slidably connected with a mounting plate I near one end of the air cylinder, and a mounting plate II is fixedly installed on the other end of the mounting plate I away from the air cylinder.

[0014] Through the above technical scheme, the sliding connection design enables the outer box body sealing piece to adaptively adjust the position during the movement of the valve plate assembly, ensuring that the sealing performance is not affected by the movement of the valve plate assembly.

[0015] Preferably, a guide rod is fixedly installed on the outer surface of the valve plate assembly, and the guide rod is in sliding connection with the valve rod.

[0016] Through the above technical scheme, the guide rod provides stable guiding action for the valve rod, enabling the valve rod to move linearly in a predetermined direction during movement, avoiding problems such as deviation and shaking of the valve rod caused by uneven force or other factors, and ensuring the accuracy and stability of the movement of the valve plate assembly.

[0017] Preferably, a mounting bracket is fixedly installed on the outer surface of the air cylinder, and an inclined support plate is fixedly installed on the other end of the mounting bracket I away from the air cylinder.

[0018] Through the above technical scheme, the mounting bracket ensures that the air cylinder does not displace or shake during operation, and the inclined support plate further enhances the stability of the air cylinder and related components, enabling them to withstand greater forces, especially during the opening and closing of the valve, effectively resisting the reaction force generated by the movement of the valve plate assembly, ensuring normal operation of the air cylinder, thereby ensuring stable operation of the valve, and improving the reliability and safety of the entire valve system.

[0019] Compared with the prior art, the sealing structure of the flat slide valve of the regenerative combustion furnace has the following beneficial effects:

[0020] 1. The sealing structure of the flat slide valve of the regenerative combustion furnace provides buffering when the valve plate assembly is closed, reduces wear and noise caused by the collision of the valve plate body and other components, protects the structural integrity of the valve plate assembly and related components, prolongs the service life of the valve, and the arrangement of the reinforcing ribs enhances the strength and rigidity of the valve plate body, so that it is not easily deformed when subjected to the impact of high-temperature and high-pressure exhaust gas, ensuring the sealing performance and normal closing function of the valve, improving the reliability and stability of the valve under harsh working conditions, and ensuring stable operation of the regenerative combustion furnace.

[0021] 2、The sealing structure of the flat valve of the regenerative combustion furnace, when the valve plate assembly is closed, the sealing gasket is accurately embedded in the groove of the valve plate assembly, forming a tight sealing contact, and effectively increasing the contact area between the valve plate and the air inlet and outlet, improving the matching degree of the two, and the air tightness is stronger, when the valve plate assembly is closed, the sealing gasket fills the groove, prevents exhaust gas from leaking from the gap between the valve plate assembly and the air inlet and outlet, improves the sealing performance of the valve, reduces the exhaust gas leakage, ensures the treatment efficiency of the regenerative combustion furnace, and also reduces the pollution to the environment. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 For the three-dimensional structure of the utility model Figure One ;

[0023] Figure 2 For the three-dimensional structure of the utility model Figure Two ;

[0024] Figure 3 For the three-dimensional structure of the utility model Figure One ;

[0025] Figure 4 For the three-dimensional structure of the utility model Figure Two ;

[0026] Figure 5 For the three-dimensional structure of the utility model Figure One ;

[0027] Figure 6 For the three-dimensional structure of the utility model Figure Two .

[0028] 1, air cylinder; 2, fixed frame one; 3, self-centering connecting rod; 4, outer box body sealing element; 5, guide wheel set; 6, valve rod; 7, valve plate assembly; 701, valve plate body; 702, limiting pad; 703, reinforcing rib; 704, positioning bolt; 8, air inlet plate; 9, fixed frame two; 11, mounting frame; 12, inclined support plate; 13, guide rod; 15, mounting plate one; 16, mounting plate two; 17, sealing gasket; 18, groove. DETAILED DESCRIPTION

[0029] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] Embodiment one: asFigures 1-6 The utility model provides a kind of sealing structure of flat -gate valve of regenerative combustion furnace, including cylinder 1 and air port plate 8, fixed mounting is equipped with fixed frame one 2 on the outer surface of cylinder 1, fixed mounting is equipped with self-aligning link 3 on the output shaft of cylinder 1, self-aligning link 3 is fixedly installed outer box seal 4 at another end far from cylinder 1, outer box seal 4 is fixedly installed guide wheel group 5 and valve stem 6 at another end far from self-aligning link 3, valve stem 6 is fixedly installed valve plate assembly 7 at another end far from guide wheel group 5, fixed mounting is equipped with fixed frame two 9 on the end of air port plate 8 close to cylinder 1, recess 18 is set on the outer surface of valve plate assembly 7;

[0031] Valve plate assembly 7 includes valve plate body 701, fixed mounting is equipped with limiting pad 702 on the outer surface of valve plate body 701, fixed mounting is equipped with reinforcing rib 703 on the outer surface of limiting pad 702, reinforcing rib 703 is provided with positioning bolt 704 on the outer surface, positioning bolt 704 passes through reinforcing rib 703 and extends to the outer surface of valve plate body 701, the advantage is, by limiting pad 702 can provide buffer when valve plate assembly 7 is closed, reduce the abrasion and noise generated by the collision of valve plate body 701 and other components, protect the structural integrity of valve plate assembly 7 and related components, prolong the service life of valve, the setting of reinforcing rib 703 enhances the strength and rigidity of valve plate body 701, so that it is not easy to deform when bearing high-temperature, high-pressure exhaust gas impact, guarantee the sealing performance and normal closing function of valve, improve the reliability and stability of valve under harsh working conditions, ensure the stable operation of regenerative combustion furnace.

[0032] Specifically, reinforcing rib 703 is provided with same two, two reinforcing ribs 703 are symmetrically distributed about the center line of valve plate body 701, the advantage is, the symmetrically distributed reinforcing rib 703 makes the force of valve plate body 701 more uniform, can better resist deformation when bearing exhaust gas pressure, avoid the local deformation caused by uneven stress to affect sealing effect, improve the overall stability and reliability of valve plate assembly 7, further guarantee the sealing performance of valve, reduce the risk of exhaust gas leakage caused by poor sealing.

[0033] Specifically, fixed mounting is equipped with sealing pad 17 on the end of fixed frame two 9 close to cylinder 1, sealing pad 17 is compatible with recess 18, the advantage is, when valve plate assembly 7 is closed, sealing pad 17 is accurately embedded in the recess 18 of valve plate assembly 7, forms tight sealing contact, the compatible design of sealing pad 17 and recess 18 provides an effective sealing method, when valve plate assembly 7 is closed, sealing pad 17 fills recess 18, prevents exhaust gas from leaking from the gap between valve plate assembly 7 and air port plate 8, improves the sealing performance of valve, reduces the exhaust gas leakage amount, ensures the processing efficiency of regenerative combustion furnace, also reduces the pollution to environment.

[0034] Embodiment two: as Figures 2-6As an improvement to the previous embodiment.

[0035] Specifically, the outer box body sealing piece 4 is slidably connected with the mounting plate one 15 close to one end of the cylinder 1, and the mounting plate two 16 is fixedly installed on the other end of the mounting plate one 15 away from the cylinder 1. The advantage is that the sliding connection design enables the outer box body sealing piece 4 to adaptively adjust the position during the movement of the valve plate assembly 7, ensuring that its sealing performance is not affected by the movement of the valve plate assembly 7. When the valve plate assembly 7 is opened or closed, the outer box body sealing piece 4 can slide flexibly on the mounting plate one 15, always maintaining a good sealing state, reducing the risk of sealing failure caused by valve plate movement, and improving the reliability and stability of the overall sealing system of the valve.

[0036] Specifically, the valve plate assembly 7 is fixedly installed with a guide rod 13 on the outer surface, and the guide rod 13 is in sliding connection with the valve rod 6. The advantage is that the guide rod 13 provides a stable guiding effect for the valve rod 6, enabling the valve rod 6 to move linearly in a predetermined direction during movement, avoiding problems such as deviation and shaking of the valve rod 6 caused by uneven force or other factors, and ensuring the accuracy and stability of the movement of the valve plate assembly 7.

[0037] Specifically, the cylinder 1 is fixedly installed with a mounting bracket 11 on the outer surface, and the inclined support plate 12 is fixedly installed on the other end of the fixed bracket one 2 away from the cylinder 1. The advantage is that the mounting bracket 11 ensures that the cylinder 1 does not displace or shake during operation, and the inclined support plate 12 further enhances the stability of the cylinder 1 and its related components, enabling them to withstand greater forces. In particular, during the opening and closing of the valve, it can effectively resist the reaction force generated by the movement of the valve plate assembly 7, ensuring the normal operation of the cylinder 1 and thus ensuring the stable operation of the valve, thereby improving the reliability and safety of the entire valve system.

[0038] Working principle: in use, the output shaft of the cylinder 1 can be telescopic, through the fixed frame one 2 stably installed on the outer surface of the cylinder 1, the self-centering connecting rod 3 fixed on the output shaft transmits power, the self-centering connecting rod 3 is connected with the outer box sealing element 4, one end of the outer box sealing element 4 is slidably connected with the mounting plate one 15, the sliding connection design makes the outer box sealing element 4 can self-adaptively adjust the position in the valve plate assembly 7 movement process, ensures that the sealing performance is not affected, the other end of the outer box sealing element 4 is fixed with the guide wheel set 5 and the valve rod 6, which moves with the movement of the outer box sealing element 4, the guide rod 13 provides stable linear motion guide for the valve rod 6, ensures the accuracy and stability of the valve rod 6 movement, avoids deviation and shaking, the valve rod 6 drives the valve plate assembly 7 to move, the valve plate body 701 in the valve plate assembly 7 is limited by the limiting pad 702 on the outer surface, when the valve plate assembly 7 is closed, the limiting pad 702 provides buffer, reduces the collision and abrasion noise of the valve plate body 701 and other components, protects the structural integrity, the reinforcing ribs 703 are symmetrically distributed on both sides of the center line of the valve plate body 701, makes the valve plate body 701 force uniform, enhances its strength and rigidity, is not easy to deform when bearing high-temperature, high-pressure waste gas impact, ensures the valve sealing performance and normal closing function, when the valve plate assembly 7 is closed, the sealing pad 17 on the one end of the fixed frame two 9 of the tuyere plate 8 is embedded in the groove 18 on the outer surface of the valve plate assembly 7, forms a tight sealing contact, effectively prevents the waste gas from leaking from the gap between the valve plate assembly 7 and the tuyere plate 8, improves the valve sealing performance, at the same time, the cylinder 1 is fixedly installed through the mounting frame 11, the inclined support plate 12 connected with the fixed frame one 2 further enhances the stability of the cylinder 1 and its related components, makes it can bear the reaction force generated by the valve plate assembly 7 movement in the valve opening and closing process, ensures the normal work of the cylinder 1, thereby guarantees the stable operation of the whole valve system, precisely controls the inlet and outlet and sealing of the waste gas in the regenerative combustion furnace.

[0039] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A sealing structure of a flat slide valve of a regenerative combustion furnace, comprising a cylinder (1) and a tuyere plate (8), characterized by: The outer surface of the cylinder (1) is fixedly installed with a fixed frame one (2), the output shaft of the cylinder (1) is fixedly installed with a self-aligning connecting rod (3), the other end of the self-aligning connecting rod (3) away from the cylinder (1) is fixedly installed with an outer box body sealing element (4), the other end of the outer box body sealing element (4) away from the self-aligning connecting rod (3) is fixedly installed with a guide wheel group (5) and a valve rod (6), the other end of the valve rod (6) away from the guide wheel group (5) is fixedly installed with a valve plate assembly (7), the one end of the tuyere plate (8) close to the cylinder (1) is fixedly installed with a fixed frame two (9), the outer surface of the valve plate assembly (7) is provided with a groove (18); The valve plate assembly (7) comprises a valve plate body (701), the outer surface of the valve plate body (701) is fixedly installed with a limiting pad (702), the outer surface of the limiting pad (702) is fixedly installed with a reinforcing rib (703), the outer surface of the reinforcing rib (703) is provided with a positioning bolt (704), the positioning bolt (704) penetrates through the reinforcing rib (703) and extends to the outer surface of the valve plate body (701).

2. The sealing structure of a flat slide valve of a regenerative combustion furnace according to claim 1, wherein: The reinforcing rib (703) is provided with two same reinforcing ribs, and the two reinforcing ribs (703) are symmetrically distributed about the center line of the valve plate body (701).

3. The seal structure of a flat slide valve of a regenerative combustion furnace according to claim 1, wherein: The one end of the fixed frame two (9) close to the cylinder (1) is fixedly installed with a sealing gasket (17), and the sealing gasket (17) is matched with the groove (18).

4. The seal structure of a flat slide valve of a regenerative combustion furnace according to claim 1, wherein: The one end of the outer box body sealing element (4) away from the cylinder (1) is slidably connected with a mounting plate one (15), and the other end of the mounting plate one (15) away from the cylinder (1) is fixedly installed with a mounting plate two (16).

5. The seal structure of a flat slide valve of a regenerative combustion furnace according to claim 1, wherein: The outer surface of the valve plate assembly (7) is fixedly installed with a guide rod (13), and the guide rod (13) is slidably connected with the valve rod (6).

6. The seal structure of a flat slide valve of a regenerative combustion furnace according to claim 1, wherein: The outer surface of the cylinder (1) is fixedly installed with a mounting frame (11), and the other end of the fixed frame one (2) away from the cylinder (1) is fixedly installed with an inclined supporting plate (12).

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