Novel pressure regulating valve for coke oven carbonization chamber
By designing a combination of a smooth-looking three-dimensional valve core and high- and low-pressure ammonia nozzles, the problem of sticky substances easily sticking to the pressure regulating valve in the carbonization chamber of the coke oven is solved, stable control and automatic cleaning of the carbonization chamber pressure are achieved, and the operating convenience and control accuracy of the equipment are improved.
Patent Information
- Application Number
- CN202423109446.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-17
AI Technical Summary
The existing coke oven carbonization chamber pressure regulating valve is easily adhered by viscous substances such as tar gas, affecting the regulation effect and difficult to clean automatically, resulting in unstable carbonization chamber pressure, which may cause environmental pollution and equipment damage.
A three-dimensional valve core with a smooth appearance, narrow at the top and wide at the bottom is designed. The position of the valve core is linearly adjusted by a driving mechanism. Combined with high and low pressure ammonia nozzles and an annular water seal device, the stable circulation and automatic cleaning of raw gas can be achieved to avoid sticking of sticky substances.
The stable control of the carbonization chamber pressure is achieved, the sticking of viscous materials is reduced, the service life of the equipment is extended, the convenience of operation and the linearity of control are improved, and the frequency of manual cleaning is reduced.
Smart Images
Figure CN223469736U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of coke oven carbonization chamber pressure regulation, in particular to a novel coke oven carbonization chamber pressure regulating valve. BACKGROUND
[0002] The carbonization chamber is a component of the coke oven, and in the carbonization chamber, the coal is heated under the condition of air isolation and is changed into coke through the high-temperature dry distillation process. If the pressure in the carbonization chamber is too high, a large amount of harmful crude coal gas will be leaked, which not only pollutes the environment and causes energy waste, but also causes a large amount of crude coal gas to leak into the combustion chamber and damage the coke oven equipment. If the pressure is too low, air will enter the carbonization chamber, causing coke combustion, ash increase, coke quality reduction, and even causing the erosion of the oven body and shortening the service life of the oven body. Therefore, the pressure in the carbonization chamber needs to be adjusted. An air outlet and an adjusting valve are usually arranged above the adjusting chamber. The valve core of the existing adjusting valve is usually a flat adjusting plate. The adjusting plate is connected to a gas cylinder through a connecting rod, and the size of the air outlet is adjusted by the gas cylinder pushing the adjusting plate. The gas generated by the high-temperature dry distillation of coal usually contains tar gas and other substances that are not easy to clean. These substances are easy to adhere to the adjusting plate and are not easy to clean. Moreover, they are easy to stick together, which will affect the normal use of the adjusting valve. SUMMARY
[0003] In view of the defects of the existing coke oven carbonization chamber pressure regulating valve, the technical problem to be solved by the utility model is to provide a novel coke oven carbonization chamber pressure regulating valve which is easy to operate, has good control linearity, and does not need manual cleaning.
[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, the utility model is realized through the following technical measures: the novel coke oven carbonization chamber pressure regulating valve comprises a bridge pipe, a valve core, and a valve seat. One end of the bridge pipe is connected to the carbonization chamber through a rising pipe, and the other end is connected to a gas collecting pipe. The valve seat is arranged in the interior of the bridge pipe and is annular. A valve core is arranged in the center of the valve seat. The crude coal gas enters the bridge pipe from the carbonization chamber and flows through the annular passage between the valve seat and the valve core to enter the gas collecting pipe. The valve core is a solid valve core with a smooth appearance, a narrow upper part, and a wide lower part. The valve core is connected to a driving mechanism through a connecting rod. The driving mechanism controls the upward and downward movement of the valve core. The annular area between the valve seat and the valve core changes linearly with the upward and downward displacement of the valve core, that is, the flow area of the crude coal gas changes linearly with the upward and downward movement of the valve core.
[0005] Further, the valve core is a bell-shaped valve core, a conical valve core, or a special-shaped hemispherical valve core.
[0006] Further, a high-low pressure ammonia water spray head is arranged above the bridge pipe and is inclined to the valve core.
[0007] Further, the bottom of the valve core is provided with an overflow hole and an annular water seal device, when the valve core is closed, ammonia water flows into the gas collecting pipe through the overflow hole and the annular water seal device, and the annular water seal device can effectively block the raw coal gas to avoid backflow of the raw coal gas.
[0008] Compared with the prior art, the novel coke oven carbonization chamber pressure regulating valve has the advantages that: the valve core is narrow at the top and wide at the bottom, the raw coal gas enters from the riser pipe, passes through the annular flow-through surface between the valve core and the valve seat, and enters the gas collecting pipe, the size of the gas outlet can be adjusted by adjusting the position of the valve core up and down by the driving mechanism, so that the stability of the carbonization chamber pressure is maintained within a reasonable range, the raw coal gas is prevented from overflowing due to excessively high carbonization chamber pressure, and air is prevented from being sucked into the carbonization chamber due to excessively low carbonization chamber pressure, the control valve has good linearity and good control quality; the valve core is smooth in appearance, and the high-pressure ammonia water and the low-pressure ammonia water continuously flush the valve core, so that viscous substances are not easy to stick, and frequent cleaning work is not required; the valve core is small in resistance due to the smooth appearance and the narrow top and wide bottom, and is beneficial to rapid discharge of the raw coal gas. BRIEF DESCRIPTION OF DRAWINGS
[0009] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application. The present application is not limited by the accompanying drawings.
[0010] Figure 1 The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application. The present application is not limited by the accompanying drawings.
[0011] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application, and the illustrative embodiments of the present application and their description serve the purpose of explaining the present application. The present application is not limited by the accompanying drawings. DETAILED DESCRIPTION
[0012] In the following, the present application will be described in detail with reference to the accompanying drawings and embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.
[0013] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "bottom", "top", etc. indicate the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0014] Please refer to Figure 1The new coke oven carbonization chamber pressure regulating valve provided by the embodiment comprises a bridge pipe 3, a valve core 5 and a valve seat 6. One end of the bridge pipe 3 is connected with the carbonization chamber through a rising pipe, and the other end is connected to a gas collecting pipe. A bridge pipe cleaning hole 4 is arranged on one side of the bridge pipe 3. The valve seat 6 is arranged inside the bridge pipe 3, and the valve seat 6 is annular. The valve core 5 is arranged in the center of the valve seat 6. The raw coal gas of the carbonization chamber enters the bridge pipe 3 from the upper part, flows into the annular channel formed by the valve core 5 and the valve seat 6 and enters the gas collecting pipe. The valve core 5 is a solid valve core (bell-shaped valve core or conical valve core or special-shaped hemispherical valve core) with smooth appearance and narrow upper part and wide lower part. The valve core 5 is connected with a driving mechanism through a valve core driving connecting rod 2. The driving mechanism controls the up-and-down movement of the valve core. The annular area between the valve seat 6 and the valve core 5 changes linearly with the up-and-down displacement of the valve core 5, that is, the flow area of the raw coal gas changes linearly with the up-and-down movement of the valve core, so as to regulate the pressure of the carbonization chamber and stabilize the pressure of the carbonization chamber in a reasonable range. A high-and-low-pressure ammonia water spray head 1 is arranged above the bridge pipe 3. The high-and-low-pressure ammonia water spray head 1 is inclined to the valve core 5 and continuously flushes the valve core 5, so as to avoid that viscous substances in the raw coal gas are stuck on the valve core 5. An overflow hole 7 and an annular water seal 8 are arranged at the bottom of the valve core 5. When the valve core 5 moves to the upper limit, the annular area formed by the valve core 5 and the valve seat 6 is zero, that is, the valve core 5 is closed. The ammonia water flows into the gas collecting pipe through the overflow hole 7 and the annular water seal 8. Meanwhile, the annular water seal 8 can effectively block the raw coal gas and avoid the backflow of the raw coal gas.
[0015] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can be changed and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. A new coke oven chamber pressure regulating valve comprising a bridge pipe, a valve core, a valve seat, characterized in that: One end of the bridge pipe is connected with the carbonization chamber through the riser pipe, and the other end is connected with the gas collecting pipe; the valve seat is arranged in the interior of the bridge pipe, the valve seat is annular, a valve core is arranged in the center of the valve seat, the valve core is a solid valve core with smooth appearance, narrow upper part and wide lower part, the valve core is connected with the driving mechanism through a connecting rod, and the driving mechanism controls the up-and-down movement of the valve core.
2. The novel coke oven chamber pressure regulating valve according to claim 1, characterized in that: The valve core is a bell-shaped valve core.
3. The novel coke oven chamber pressure regulating valve according to claim 1, characterized in that: The valve core is a conical valve core.
4. The novel coke oven chamber pressure regulating valve according to claim 1, characterized in that: The valve core is a special-shaped semi-spherical valve core.
5. The novel coke oven chamber pressure regulating valve according to any one of claims 1 to 4, characterized in that: High-pressure and low-pressure ammonia water nozzles are arranged on the upper part of the bridge pipe.
6. The novel coke oven chamber pressure regulating valve according to any one of claims 1 to 4, characterized by: An overflow hole and an annular water seal are arranged on the bottom of the valve core.