Pressure regulating valve for coking chamber of coke oven

Abstract

The utility model discloses a pressure regulating valve for a coking chamber of a coke oven. The pressure regulating valve comprises a valve body and an actuator arranged on one side of the valve body, the valve body comprises an outer valve shell arranged on the lower side of the bridge pipe, a valve seat arranged in the outer valve shell and a pair of butterfly plates rotationally arranged in the valve seat, and a plurality of through holes allowing airflow to pass through are formed in the valve seat. The actuator comprises a driving device, a connecting assembly and a pointer. The driving device is connected with the butterfly plate through the connecting assembly and used for driving the butterfly plate to rotate so as to adjust the angle of the butterfly plate in the valve seat. The pointer is arranged on the driving device and used for displaying the angle of the butterfly plate. The butterfly plate can be driven to be opened and closed to a proper position through the driving device of the actuator and the connecting assembly and is matched with the through hole in the valve seat, so that the pressure of the carbonization chamber is stably adjusted, and the arranged pointer can ensure the display correctness of the opening and closing angle of the butterfly plate; the regulating valve is simple in structure, low in cost and convenient and fast to use, and an ascending pipe of an existing coke oven does not need to be transformed.

Description

TECHNICAL FIELD

[0001] The utility model relates to coke oven technology field especially relates to a coke oven carbonization chamber pressure regulating valve. BACKGROUND

[0002] Each hole carbonization chamber top of the coke oven is connected with the gas collecting pipe through a riser and a bridge pipe. The bridge pipe is provided with ammonia water spraying device. The smoke and gas produced in the carbonization chamber during coking process is reduced by spraying ammonia water to reduce the temperature at the bridge pipe, causing local low pressure, so that it is smoothly guided into the gas collecting pipe.

[0003] When the coke oven carbonization chamber just starts to load coke, a large amount of air will enter, and the coal cake produces a large amount of smoke under the action of high temperature of the carbonization chamber wall. When the coal cake is in the coking end period in the carbonization chamber, the amount of raw gas produced is small.

[0004] The smoke and gas produced in the carbonization chamber is guided into the gas collecting pipe through the carbonization chamber riser and the bridge pipe. In order to ensure that the large amount of smoke produced by loading coal can be smoothly guided into the gas collecting pipe, a large pressure difference between the gas collecting pipe and the carbonization chamber is required, so the pressure regulating valve needs to be opened to the maximum. Under normal production conditions, the amount of raw gas generated gradually decreases, and only a small amount of gas is generated in the coking end period. The large change of the amount of smoke and raw gas in the carbonization chamber requires the pressure regulating valve between the gas collecting pipe and the carbonization chamber to control the pressure difference between the carbonization chamber and the gas collecting pipe, but also needs to maintain the carbonization chamber bottom pressure in a state of micro positive pressure (0-5 Pa) at all times. The purpose is to prevent air from entering the carbonization chamber at the seal of the oven door, and to prevent the smoke or raw gas in the carbonization chamber from leaking. Therefore, the pressure regulating valve between the gas collecting pipe and the carbonization chamber is required to have the characteristics of large and high precision of gas flow and pressure adjustment.

[0005] At present, some coking plants use the gas collecting pipe and the carbonization chamber pressure regulating valve to control the lifting height of the gas collecting pipe water seal valve by using a cylinder driven connecting rod mechanism to regulate the pressure of the carbonization chamber. The disadvantage is that when the gas flow changes, the lifting height of the water seal valve and the change of the carbonization chamber pressure have low linear correlation. Because the gas in the cylinder is compressible, the cylinder frequently operates in use, the carbonization chamber pressure stability is poor, the control element is easy to be damaged, and the equipment investment is high. Moreover, many coke ovens that have been put into production do not have carbonization chamber pressure regulating equipment. If the gas collecting pipe water seal valve pressure regulating mechanism is selected as the carbonization chamber pressure regulating system, the existing riser of the coke oven needs to be replaced during the transformation, and the production of the coke oven will also be affected during the transformation. Due to the reasons of large investment, large construction difficulty and large influence on production of the current gas collecting pipe water seal valve pressure regulating mechanism, the technical means of adding carbonization chamber pressure regulation to the coke ovens that have been put into production is limited. UTILITY MODEL CONTENTS

[0006] The utility model provides a coke oven carbonization chamber pressure regulating valve to overcome the above problems.

[0007] In order to achieve the above object, the technical scheme of the utility model is:

[0008] A coke oven carbonization chamber pressure regulating valve, including valve body and the actuator that locates one side of valve body;

[0009] The valve body includes the outer valve shell arranged at the lower side of the bridge pipe, the valve seat arranged inside the outer valve shell, and a pair of butterfly plates rotatably arranged in the valve seat, wherein the valve seat is provided with a plurality of through holes for airflow passing;

[0010] The actuator includes a driving device, a connecting assembly, and a pointer;The driving device is connected to the butterfly plate through the connecting assembly, and the driving device is used to drive the butterfly plate to rotate to adjust the angle of the butterfly plate in the valve seat;

[0011] The pointer is arranged on the driving device and is used to display the angle of the butterfly plate.

[0012] Further, the connecting assembly includes a first connecting arm, a second connecting arm, a first rotating shaft, and a second rotating shaft;

[0013] The first rotating shaft and the second rotating shaft are both arranged horizontally;The first rotating shaft is sleeved outside the second rotating shaft, one end of the first rotating shaft is connected to the first butterfly plate, the other end of the first rotating shaft is connected to the driving device through the first connecting arm, one end of the second rotating shaft is connected to the second butterfly plate, and the other end of the second rotating shaft is connected to the driving device through the second connecting arm;The driving device drives the first connecting arm to move to drive the first rotating shaft and the first butterfly plate to rotate, thereby changing the angle between the first butterfly plate and the inner side wall of the valve seat, and the driving device drives the second connecting arm to move to drive the second rotating shaft and the second butterfly plate to rotate, thereby changing the angle between the second butterfly plate and the inner side wall of the valve seat.

[0014] Further, the actuator further includes a box body, and the first connecting arm, the second connecting arm, and the pointer are all arranged in the box body;

[0015] A transparent protective cover is arranged on the box body, the transparent protective cover is provided with a scale along the vertical direction, the pointer is arranged on the driving device along the horizontal direction, and one end of the pointer away from the driving device is arranged in the transparent protective cover;

[0016] One end of the first rotating shaft is arranged in the box body and connected to the first connecting arm, and the other end of the first rotating shaft protrudes out of the box body and is fixedly connected to the first butterfly plate in the outer valve shell;One end of the second rotating shaft is arranged in the box body and connected to the second connecting arm, and the other end of the second rotating shaft protrudes out of the box body and is fixedly connected to the second butterfly plate in the outer valve shell.

[0017] Further, the driving device comprises a driving motor, a lead screw and a slide rail; the lead screw is vertically arranged in the box body, and one end of the lead screw is connected with an output end of the driving motor; the slide rail is installed on the lead screw through a lead screw nut;

[0018] The slide rail is provided with a first slide groove and a second slide groove arranged in a horizontal direction at intervals; one end of the first butterfly plate away from the first connecting arm is provided with a first slide roller, and the first slide roller is reciprocatingly and slidably installed in the first slide groove; one end of the second butterfly plate away from the second connecting arm is provided with a second slide roller, and the second slide roller is reciprocatingly and slidably installed in the second slide groove.

[0019] The pointer is fixed on the slide rail in a horizontal direction.

[0020] Further, the inner side wall of the box body is provided with a slide way, and both sides of the slide rail are provided with slide blocks which are slidably arranged in the slide way.

[0021] Further, a speed reducer is arranged between the driving motor and the lead screw.

[0022] Further, the valve seat is installed in the outer valve shell through valve seat shaft sleeves at both ends, and both ends of the first rotating shaft and both ends of the second rotating shaft are rotatably arranged in the valve seat shaft sleeves.

[0023] Further, an inspection cover and a connecting end cover are arranged on the box body, the transparent protective cover is arranged on the inspection cover, and the connecting end cover is arranged on one side of the first rotating shaft extending out of the box body.

[0024] Further, an electromagnetic brake is arranged at the output end of the driving motor.

[0025] The beneficial effects of the utility model are as follows:

[0026] The coke oven carbonization chamber pressure regulating valve disclosed in the utility model has a linear correlation between the angle of the butterfly plate and the pressure of the carbonization chamber, the driving device and the connecting assembly of the actuator can drive the butterfly plate to open and close to a suitable position, and cooperate with the special-shaped through hole on the valve seat, so that the pressure of the carbonization chamber is stably regulated, the pointer can ensure the correctness of the opening angle display of the butterfly plate, the regulating valve has simple structure and low cost, does not need to transform the rising pipe of the existing coke oven, and is convenient to apply. DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative labor under the premise of the drawings.

[0028] Figure 1 For the structure diagram of the coke oven carbonization chamber pressure regulating valve disclosed in the embodiment of the present application Figure 1 ;

[0029] Figure 2 For the structure diagram of the coke oven carbonization chamber pressure regulating valve disclosed in the embodiment of the present application Figure 2 ;

[0030] Figure 3 For the structure diagram of the coke oven carbonization chamber pressure regulating valve disclosed in the embodiment of the present application Figure 3 ;

[0031] Figure 4 For the structure diagram of the coke oven carbonization chamber pressure regulating valve disclosed in the embodiment of the present application

[0032] Figure 5 For the structure diagram of the coke oven carbonization chamber pressure regulating valve disclosed in the embodiment of the present application Figure 1 ;

[0033] Figure 6 For the structure diagram of the coke oven carbonization chamber pressure regulating valve disclosed in the embodiment of the present application Figure 2 ;

[0034] Figure 7 For the structure diagram of the coke oven carbonization chamber pressure regulating valve disclosed in the embodiment of the present application

[0035] Figure 8 For the structure diagram of the coke oven carbonization chamber pressure regulating valve disclosed in the embodiment of the present application Figure 1 ;

[0036] Figure 9 For the structure diagram of the coke oven carbonization chamber pressure regulating valve disclosed in the embodiment of the present application Figure 2 .

[0037] In the drawings:

[0038] 1, valve body; 11, outer valve shell; 12, valve seat; 13, valve seat shaft sleeve;

[0039] 2, actuator; 21, driving device; 211, slider; 212, driving motor; 213, screw; 214, slide rail; 214a, first sliding groove; 214b, second sliding groove; 215, nut; 216, speed reducer; 22, connecting assembly; 221, first connecting arm; 221a, first sliding roller; 222, second connecting arm; 222a, second sliding roller; 223, first rotating shaft; 224, second rotating shaft; 23, pointer; 24, box body; 241, transparent protective cover; 242, maintenance cover; 243, connecting end cover; 244, slide; 25, first butterfly plate; 26, second butterfly plate;

[0040] 3, bridge pipe. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0042] As Figures 1-4 shown is a coke oven carbonization chamber pressure regulating valve provided by the present embodiment, comprising a valve body 1 and an actuator 2 arranged on one side of the valve body 1;

[0043] The valve body 1 comprises an outer valve shell 11 arranged on the lower side of the bridge pipe, a valve seat 12 arranged inside the outer valve shell 11, and a pair of butterfly plates rotatably arranged in the valve seat 12, and a plurality of through holes for airflow passing through are arranged on the valve seat 12;

[0044] The actuator 2 comprises a driving device 21, a connecting assembly 22 and a pointer 23; the driving device 21 is connected with the butterfly plates through the connecting assembly 22, and the driving device 21 is used to drive the butterfly plates to rotate to adjust the angle of the butterfly plates in the valve seat 12;

[0045] The pointer 23 is arranged on the driving device 21 and is used to display the angle of the butterfly plates. The through hole is a special-shaped hole, and the specific shape and size thereof can be set according to actual needs;

[0046] The utility model discloses a coke oven carbonization chamber pressure regulating valve, the angle of butterfly plate and carbonization chamber pressure present change linear correlation degree, through the drive arrangement and connecting assembly of actuator can drive butterfly plate open and shut to appropriate position, and cooperate the special-shaped through -hole on valve seat to stabilize the regulation carbonization chamber pressure, and the pointer of setting can guarantee the correctness of the opening angle display of butterfly plate, the regulating valve simple structure, low in cost, also need not to the reform of the rising pipe, bridge pipe, water seal valve of existing coke oven, convenient to apply.

[0047] In specific embodiments, as shown in Figure 3 、 Figures 8-9 The connecting assembly 22 includes a first connecting arm 221, a second connecting arm 222, a first rotating shaft 223 and a second rotating shaft 224.

[0048] The first rotating shaft 223 and the second rotating shaft 224 are both transversely arranged; the first rotating shaft 223 is sleeved on the outside of the second rotating shaft 224, one end of the first rotating shaft 223 is connected with the first butterfly plate 25, the other end of the first rotating shaft 223 is connected with the drive device 21 through the first connecting arm 221, one end of the second rotating shaft 224 is connected with the second butterfly plate 26, and the other end of the second rotating shaft 224 is connected with the drive device 21 through the second connecting arm 222; the drive device 21 drives the first connecting arm 221 to move to drive the first rotating shaft 223 and the first butterfly plate 25 to rotate, thereby changing the angle between the first butterfly plate 25 and the inner side wall surface of the valve seat 12; the drive device 21 drives the second connecting arm 222 to move to drive the second rotating shaft 224 and the second butterfly plate 26 to rotate, thereby changing the angle between the second butterfly plate 26 and the inner side wall surface of the valve seat 12; the drive device 21 drives the reciprocating movement of the first connecting arm 221, thereby driving the first rotating shaft 223 and the first butterfly plate 25 to rotate around the shaft, and further adjusting the opening angle of the first butterfly plate 25; the drive device 21 drives the reciprocating movement of the second connecting arm 222 while driving the first connecting arm 221 to move, thereby driving the second rotating shaft 224 and the second butterfly plate 26 to rotate around the shaft, and further adjusting the opening angle of the second butterfly plate 26; the movement directions of the first connecting arm 221 and the second connecting arm 222 are opposite, so that the first butterfly plate 25 and the second butterfly plate 26 can move towards each other or away from each other, i.e. adjusting the angles of the two butterfly plates with the valve seat 12, adjusting the opening angles of the two butterfly plates and the gas flow, and finally adjusting the pressure in the carbonization chamber; driving the butterfly plates to rotate through the first connecting arm 221 and the second connecting arm 222 can reduce the cost and is simple in structure and easy to implement.

[0049] In specific embodiments, the actuator 2 further includes a box body 24, and the first connecting arm 221, the second connecting arm 222 and the pointer 23 are all arranged in the box body 24.

[0050] The box 24 is provided with a transparent protective cover 241, the transparent protective cover 241 is provided with a scale along the vertical direction, the pointer 23 is provided on the driving device 21 along the horizontal direction, and the end of the pointer 23 away from the driving device 21 is provided in the transparent protective cover 241;

[0051] One end of the first rotating shaft 223 is connected with the first connecting arm 221 in the box 24, and the other end of the first rotating shaft 223 extends out of the box 24 and is fixedly connected with the first butterfly plate 25 in the outer valve shell 11; one end of the second rotating shaft 224 is connected with the second connecting arm 222 in the box 24, and the other end of the second rotating shaft 224 extends out of the box 24 and is fixedly connected with the second butterfly plate 26 in the outer valve shell 11; the pointer 23 is fixedly connected with the driving device 21, and the position of the pointer 23 can be observed through the transparent protective cover 241, the opening angle of the butterfly plate in the valve body 1 can be known through the scale where the pointer 23 is located, so that the corresponding intake flow can be known, and then the pressure in the carbonization chamber can be known.

[0052] In specific embodiments, the driving device 21 includes a driving motor 212, a lead screw 213 and a sliding rail 214; the lead screw 213 is vertically arranged in the box 24, and one end of the lead screw 213 is connected with the output end of the driving motor 212, and the sliding rail 214 is installed on the lead screw 213 through a nut 215;

[0053] As shown in Figure 7 , Figure 9 The sliding rail 214 is provided with a first sliding groove 214a and a second sliding groove 214b arranged along the horizontal direction at intervals, one end of the first connecting arm 221 away from the first butterfly plate 25 is provided with a first sliding roller 221a, and the first sliding roller is reciprocally and slidably installed in the first sliding groove; one end of the second connecting arm 222 away from the second butterfly plate 26 is provided with a second sliding roller 222a, and the second sliding roller is reciprocally and slidably installed in the second sliding groove;

[0054] The pointer 23 is fixed on the slide rail 214 in a horizontal direction; the upper and lower ends of the lead screw 213 are installed on the box 24 through bearings, and the driving motor 212 is a servo motor; the servo motor drives the lead screw 213 to rotate, thereby driving the nut to ascend and descend along the lead screw 213, the nut drives the slide rail 214 to ascend and descend along the lead screw 213, the first sliding groove 214a and the second sliding groove 214b ascend and descend synchronously with the slide rail 214, the first sliding groove 214a and the second sliding groove 214b can synchronously drive the first sliding roller to reciprocate in the first sliding groove 214a and the first sliding roller to reciprocate in the second sliding groove 214b, so that the first connecting arm 221 and the second connecting arm 222 synchronously make a circular motion during the ascending and descending of the slide rail 214, the first butterfly plate 25 and the second butterfly plate 26 are driven to synchronously rotate through the motion of the first connecting arm 221 and the second connecting arm 222, so as to synchronously adjust the angles of the first butterfly plate 25 and the second butterfly plate 26 in the valve seat 12, thereby adjusting the gas inlet flow and the pressure of the carbonization chamber; the servo motor can accurately control the rotating speed and the number of revolutions of the motor, and the two butterfly plate angles are accurately controlled through the actuator 2; the structure of the slide rail 214 and the connecting arm is adopted, and the sliding groove is arranged on the slide rail 214 and the sliding roller is arranged on the connecting arm, so that the rotary motion of the butterfly plate in a certain range is realized, the butterfly plate is further limited, the angle of the butterfly plate is prevented from being too large or too small, and the convenience of driving the butterfly plate to open and close is improved.

[0055] In specific embodiments, as shown in Figures 4-6 The inner side wall of the box 24 is provided with a sliding channel 244, and the two sides of the slide rail 214 are provided with sliding blocks 211, which are slidably arranged in the sliding channel 244; the sliding block and the sliding channel are arranged to limit the ascending and descending of the slide rail 214, so as to ensure the stability of the motion process, and further ensure the stability of the rotary motion of the butterfly plate.

[0056] In specific embodiments, a speed reducer 216 is arranged between the driving motor 212 and the lead screw 213. The speed reducer is connected with the bottom of the lead screw 213 through a key, and is used for reducing the speed of the lead screw 213.

[0057] In specific embodiments, the valve seat 12 is installed in the outer valve shell 11 through valve seat shaft sleeves 13 at both ends, and the two ends of the first rotating shaft 223 and the two ends of the second rotating shaft 224 are rotatably arranged in the valve seat shaft sleeves 13. The valve seat shaft sleeves 13 are used for supporting the valve seat 12, so as to ensure the stability of the rotation of the first rotating shaft 223 and the second rotating shaft 224 in the valve seat shaft sleeves, and further ensure the stable rotation of the first butterfly plate 25 and the second butterfly plate 26 in the valve seat 12.

[0058] In specific embodiments, the box 24 is provided with an inspection cover 242 and a connecting end cover 243, the transparent protective cover 241 is arranged on the inspection cover, and the connecting end cover 243 is arranged on one side of the box 24 where the first rotating shaft 223 extends out. The inspection cover 242 is detachably mounted on the box 24, facilitating the inspection and replacement of the parts inside the actuator 2.

[0059] In specific embodiments, the output end of the driving motor 212 is provided with an electromagnetic brake. The brake is used to brake the output shaft of the motor, to ensure that the butterfly valve is adjusted to the required angle at one time, and to ensure that the valve opening degree is stable.

[0060] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A coke oven chamber pressure regulating valve characterized by, The valve body (1) and the actuator (2) arranged on one side of the valve body (1); The valve body (1) comprises an outer valve shell (11) arranged on the lower side of the bridge pipe (3), a valve seat (12) arranged inside the outer valve shell (11), and a pair of butterfly plates rotatably arranged in the valve seat (12), wherein a plurality of through holes for airflow are arranged on the valve seat (12); The actuator (2) comprises a driving device (21), a connecting assembly (22), and a pointer (23); the driving device (21) is connected with the butterfly plates through the connecting assembly (22), and the driving device (21) is used to drive the rotation of the butterfly plates to adjust the angle of the butterfly plates in the valve seat (12); The pointer (23) is arranged on the driving device (21) and is used to display the angle of the butterfly plates.

2. A coke oven chamber pressure regulating valve according to claim 1, characterized in that The connecting assembly (22) comprises a first connecting arm (221), a second connecting arm (222), a first rotating shaft (223), and a second rotating shaft (224); The first rotating shaft (223) and the second rotating shaft (224) are both arranged transversely; the first rotating shaft (223) is sleeved outside the second rotating shaft (224), one end of the first rotating shaft (223) is connected with the first butterfly plate (25), the other end of the first rotating shaft (223) is connected with the driving device (21) through the first connecting arm (221), one end of the second rotating shaft (224) is connected with the second butterfly plate (26), and the other end of the second rotating shaft (224) is connected with the driving device (21) through the second connecting arm (222); the driving device (21) drives the first connecting arm (221) to move to drive the first rotating shaft (223) and the first butterfly plate (25) to rotate, thereby changing the angle between the first butterfly plate (25) and the inner side wall surface of the valve seat (12); the driving device (21) drives the second connecting arm (222) to move to drive the second rotating shaft (224) and the second butterfly plate (26) to rotate, thereby changing the angle between the second butterfly plate (26) and the inner side wall surface of the valve seat (12).

3. A coke oven chamber pressure regulating valve according to claim 2, characterised in that The actuator (2) further comprises a box body (24), and the first connecting arm (221), the second connecting arm (222), and the pointer (23) are all arranged in the box body (24); A transparent protective cover (241) is arranged on the box body (24), the transparent protective cover (241) is provided with scales in the vertical direction, the pointer (23) is arranged on the driving device (21) in the horizontal direction, and one end of the pointer (23) away from the driving device (21) is arranged in the transparent protective cover (241). One end of the first rotating shaft (223) is connected with the first connecting arm (221) in the box (24), and the other end of the first rotating shaft (223) extends out of the box (24) and is fixedly connected with the first butterfly plate (25) in the outer valve shell (11); one end of the second rotating shaft (224) is connected with the second connecting arm (222) in the box (24), and the other end of the second rotating shaft (224) extends out of the box (24) and is fixedly connected with the second butterfly plate (26) in the outer valve shell (11).

4. A coke oven chamber pressure regulating valve according to claim 3, characterised in that The driving device (21) comprises a driving motor (212), a lead screw (213) and a slide rail (214); the lead screw (213) is vertically arranged in the box (24), and one end of the lead screw (213) is connected with the output end of the driving motor (212); the slide rail (214) is installed on the lead screw (213) through a lead screw nut (215); The slide rail (214) is provided with a first sliding groove (214a) and a second sliding groove (214b) arranged in a horizontal direction at intervals; one end of the first connecting arm (221) away from the first butterfly plate (25) is provided with a first sliding roller (221a), and the first sliding roller (221a) is reciprocally slidably installed in the first sliding groove; one end of the second connecting arm (222) away from the second butterfly plate (26) is provided with a second sliding roller (222a), and the second sliding roller (222a) is reciprocally slidably installed in the second sliding groove; The pointer (23) is fixed on the slide rail (214) in a horizontal direction.

5. A coke oven chamber pressure regulating valve according to claim 4, characterised in that The inner side wall of the box (24) is provided with a slide (244), and the slide rail (214) is provided with a sliding block (211) on both sides; the sliding block (211) is slidably arranged in the slide (244).

6. A coke oven chamber pressure regulating valve according to claim 4, wherein A speed reducer (216) is arranged between the driving motor (212) and the lead screw (213).

7. A coke oven chamber pressure regulating valve according to claim 2, wherein The valve seat (12) is installed in the outer valve shell (11) through a valve seat shaft sleeve (13) at both ends, respectively; both ends of the first rotating shaft (223) and both ends of the second rotating shaft (224) are rotatably arranged in the valve seat shaft sleeve (13).

8. A coke oven chamber pressure regulating valve according to claim 3, wherein The box (24) is provided with an inspection cover (242) and a connecting end cover (243); the transparent protective cover (241) is arranged on the inspection cover; and the connecting end cover (243) is arranged on one side of the first rotating shaft (223) extending out of the box (24).

9. A coke oven chamber pressure regulating valve according to claim 4, wherein The output end of the driving motor (212) is provided with an electromagnetic brake.

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