A pressure stabilizer for coke oven gas collecting pipe
By designing a combination of buffer tanks, pressure regulating valves, and protective components, the problem of dust accumulation on the pressure gauges of the coke oven gas collecting pipe was solved, achieving stable gas regulation and sealing, improving production efficiency and safety, and ensuring the clarity and readability of the pressure gauges.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGLING XIN YAXING COKING&CHEM CO LTD
- Filing Date
- 2025-07-24
- Publication Date
- 2026-06-30
AI Technical Summary
Dust easily accumulates on the surface of the pressure gauge in the coke oven gas collecting pipe, affecting the observation and maintenance by staff, and leading to a decrease in production efficiency and safety.
A coke oven gas collecting pipe pressure stabilizer was designed, comprising a buffer tank, a pressure regulating valve, a controller, and protective components. Through a combination of a sealing gasket, a threaded sleeve, and a return spring, it achieves stable regulation and sealing of the gas. A protective sleeve is provided to prevent dust accumulation and ensure the clarity and readability of the pressure gauge.
It improves the production efficiency and safety of coke ovens, reduces maintenance costs, ensures the accuracy and readability of pressure gauges, enhances the stability and sealing of the equipment, and prevents gas leakage.
Smart Images

Figure CN224430529U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coke oven gas collecting pipe pressure stabilization technology, specifically a coke oven gas collecting pipe pressure stabilizer. Background Technology
[0002] During the operation of a coke oven, the gas collecting pipe inside the coke oven concentrates the gas. During operation, it is necessary to regulate the pressure of the gas collecting pipe to stabilize the gas pressure. At this time, a corresponding gas collecting pipe pressure stabilizer is required.
[0003] During use, the pressure gauge on top of the pressure stabilizer is exposed for a long time, and dust easily accumulates on its surface. If dust accumulates for a long time, it will affect the operator's ability to read the information on the pressure gauge. Therefore, the operator needs to clean the dust on the surface of the pressure gauge regularly.
[0004] Therefore, this utility model provides a coke oven gas collecting pipe pressure stabilizer to solve the above problems. Utility Model Content
[0005] This utility model provides A, including a buffer tank and a pressure regulating valve. A bellows for discharging gas is provided on the upper left side of the buffer tank, and an air inlet pipe is provided on the upper right side of the buffer tank. The right end of the air inlet pipe is connected to the pressure regulating valve. A controller is provided on one side of the pressure regulating valve. The controller and the pressure regulating valve are electrically connected via a data line. A pressure gauge is installed on the side of the pressure regulating valve near the buffer tank. A protective component is provided on the pressure regulating valve.
[0006] Preferably, in this embodiment of the application, threaded sleeves are slidably installed at both ends of the pressure regulating valve, and multiple sets of pads are provided at both ends of the pressure regulating valve. A first return spring is sleeved on the air inlet pipe of the buffer tank. The multiple sets of pads and the multiple sets of the first return spring are located between the left and right ends of the pressure regulating valve and the two sets of threaded sleeves. The two sets of threaded sleeves are respectively connected to the air inlet pipe and the air collection pipe by threads.
[0007] Preferably, in this embodiment of the application, the threaded sleeve is threadedly connected to the pipe corresponding to the pressure regulating valve, and the threaded sleeve is threadedly connected to the gas collecting pipe. When the threaded sleeve is tightened, the pad is pushed to compress the first reset spring, forming an elastic sealing structure.
[0008] Preferably, in this embodiment of the application, sealing gaskets are provided at the contact points between the left and right ends of the pressure regulating valve and the air inlet pipe and the air collection pipe.
[0009] Preferably, in this embodiment of the application, the protective component includes two sets of clamps, which are sleeved and installed on the left end of the pressure regulating valve. A fixing plate is fixedly installed on the upper end of the two sets of clamps, and a protective sleeve is movably installed on the upper end of the fixing plate. Multiple sets of movable slots are opened in the protective sleeve. Multiple sets of insert rods are fixedly installed on the upper side of the fixing plate. The multiple sets of insert rods are movably inserted into the multiple sets of movable slots. A second return spring is sleeved on each of the multiple sets of insert rods, and the end of the second return spring away from the fixing plate abuts against the insert rod.
[0010] Preferably, in this embodiment of the application, the inner diameter of the protective sleeve is larger than the diameter of the pressure gauge, and the upper end of the pressure gauge is located inside the protective sleeve.
[0011] Preferably, in this embodiment of the application, the left and right ends of the pressure regulating valve are provided with annular grooves where they fit with the two sets of threaded sleeves, and the annular grooves cooperate with the sealing gasket to form a sealing cavity or provide a sealing surface.
[0012] Preferably, in this embodiment of the application, the buffer tank is connected to the gas collection pipe through the air inlet pipe and the pressure regulating valve, and the controller regulates the pressure of the gas entering the buffer tank through the pressure regulating valve.
[0013] Preferably, in this embodiment of the application, the pressure gauge displays the current gas pressure status in real time.
[0014] Preferably, in this embodiment of the application, the protective sleeve can slide upward along the insertion rod and compress the second return spring, exposing the pressure gauge. After being released, the pressure gauge is covered again under the reset action of the second return spring.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] By using sealing gaskets at the joints of the pressure regulating valve with the inlet and outlet pipes, and through the cooperation of two sets of threaded sleeves, multiple sets of pads, and multiple sets of first return springs installed at both ends of the pressure regulating valve, the pressure regulating valve is quickly connected to the inlet and outlet pipes, effectively enhancing the stability and sealing of the device. The pressure regulating valve and controller ensure stable pressure regulation in the outlet pipe, preventing gas leakage and improving the coke oven's production efficiency and safety. Furthermore, the protective components not only provide effective protection for the pressure gauge, preventing dust accumulation, but also facilitate cleaning and maintenance by staff, reducing maintenance costs. Simultaneously, they ensure the accuracy and readability of the pressure gauge, providing a strong guarantee for the stable operation of the coke oven. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a front view schematic diagram of a pressure stabilizer for a coke oven gas collecting pipe.
[0019] Figure 2 This is a front view structural cross-sectional schematic diagram of a coke oven gas collecting pipe pressure stabilizer;
[0020] Figure 3 This is a front view cross-sectional schematic diagram of a protective component in a coke oven gas collecting pipe pressure stabilizer.
[0021] Figure 4 for Figure 2 A magnified structural diagram at point A.
[0022] Explanation of reference numerals in the attached figures:
[0023] 1. Buffer tank; 2. Bellows; 3. Inlet pipe; 4. Pressure regulating valve; 5. Controller; 6. Data cable; 7. Air collection pipe; 8. Pressure gauge; 9. Threaded sleeve; 10. Pad; 11. First return spring; 12. Sealing gasket; 13. Clamp; 14. Fixing plate; 15. Protective sleeve; 16. Movable groove; 17. Insert rod; 18. Second return spring. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] This utility model provides a pressure stabilizer for the gas collecting pipe of a coke oven, such as... Figure 1-4 As shown, the coke oven gas collecting pipe pressure stabilizer includes a buffer tank 1 and a pressure regulating valve 4. A bellows 2 is provided on the upper left side of the buffer tank 1. The bellows 2 is used to discharge the gas in the buffer tank 1. An air inlet pipe 3 is provided on the upper right side of the buffer tank 1. The right end of the air inlet pipe 3 is connected to the pressure regulating valve 4. A controller 5 is provided on one side of the pressure regulating valve 4. A data line 6 is provided between the controller 5 and the pressure regulating valve 4. The controller 5 is electrically connected to the pressure regulating valve 4 through the data line 6. A pressure gauge 8 is fixedly installed on the side of the pressure regulating valve 4 near the buffer tank by bolts. A protective component is provided on the pressure regulating valve 4.
[0026] The buffer tank 1 can be connected to the gas collection pipe 7 through the air inlet pipe 3 and the pressure regulating valve 4 to introduce gas into the buffer tank 1. At this time, the settings of the controller 5 and the data line 6 can perform preliminary pressure regulation on the gas entering the buffer tank 1 through the pressure regulating valve 4 to ensure the stability of the gas. The pressure gauge 8 can display the current gas pressure status in real time for the staff to observe and record. The protective components play a crucial role in preventing dust and other impurities from accumulating on its surface, thereby ensuring the clarity and readability of the pressure gauge 8.
[0027] Threaded sleeves 9 are slidably installed on both the left and right ends of the pressure regulating valve 4. Multiple sets of pads 10 are provided on both the left and right ends of the pressure regulating valve 4. A first return spring 11 is sleeved on the air inlet pipe 3 on the buffer tank 1. The multiple sets of pads 10 and the multiple sets of first return springs 11 are located between the left and right ends of the pressure regulating valve 4 and the two sets of threaded sleeves 9. The two sets of threaded sleeves 9 are respectively connected to the air inlet pipe 3 and the air collection pipe 7 by threads.
[0028] Among them, the threaded sleeve 9 is threadedly connected to the pipe corresponding to the pressure regulating valve 4, and the threaded sleeve 9 is threadedly connected to the air collecting pipe 7. When the threaded sleeve 9 is tightened, the pad block 10 is pushed to compress the first reset spring 11, forming an elastic sealing structure.
[0029] During operation, when gas enters the pressure regulating valve 4 through the gas collecting pipe 7, the multiple sets of pads 10 and multiple sets of first return springs 11 effectively enhance the connection strength between the pressure regulating valve 4 and the gas inlet pipe 3 and the gas collecting pipe 7. At the same time, the two sets of threaded sleeves 9 are tightly connected to the gas inlet pipe 3 and the gas collecting pipe 7 through threads, further enhancing the stability and sealing of the device, effectively preventing gas leakage, and ensuring stable gas transmission. The controller 5 and data line 6 can precisely regulate the pressure of the incoming gas through the pressure regulating valve 4, ensuring stable gas pressure, thereby improving the production efficiency and safety of the coke oven.
[0030] Both ends of the two pressure regulating valves 4 are fitted with sealing gaskets 12 at the points where they meet the air inlet pipe 3 and the air collection pipe 7.
[0031] The sealing gasket 12 not only enhances the sealing performance of the joint, but also effectively prevents gas leakage from the joint, further improving the stability and safety of the device. During use, when gas flows through the gas collecting pipe 7, pressure regulating valve 4 and inlet pipe 3, it forms an effective sealing barrier, thereby preventing gas leakage. At the same time, the material of the sealing gasket 12 has high wear resistance and corrosion resistance, which can maintain its sealing performance for a long time and extend the service life of the device.
[0032] The protective assembly includes two sets of clamps 13, which are fitted onto the left end of the pressure regulating valve 4. A fixing plate 14 is fixedly installed on the upper end of the two sets of clamps 13. A protective sleeve 15 is movably installed on the upper end of the fixing plate 14. Multiple sets of movable slots 16 are opened inside the protective sleeve 15. Multiple sets of insert rods 17 are fixedly installed on the upper side of the fixing plate 14. The multiple sets of insert rods 17 are movably inserted into the multiple sets of movable slots 16. A second return spring 18 is fitted onto each of the multiple sets of insert rods 17. The end of the second return spring 18 away from the fixing plate 14 abuts against the insert rod 17.
[0033] The operator pulls the protective sleeve 15 upwards, causing it to slide upwards along the multiple sets of insert rods 17. During this process, the protective sleeve 15 compresses the multiple sets of second return springs 18 that are sleeved on the insert rods 17, so that the multiple sets of second return springs 18 are squeezed by the insert rods 17 and the protective sleeve 15. When the protective sleeve 15 slides to a sufficient height, the pressure gauge 8 is fully exposed.
[0034] In this embodiment, the inner diameter of the protective sleeve 15 is larger than the diameter of the pressure gauge 8, and the upper end of the pressure gauge 8 is inside the protective sleeve 15.
[0035] This not only makes it easier for staff to view and maintain pressure gauge 8, but also ensures that pressure gauge 8 is effectively protected when it is not needed, preventing the accumulation of dust and other impurities, thereby ensuring the accuracy and readability of pressure gauge 8.
[0036] The pressure regulating valve 4 has annular grooves at both ends where it fits with the two sets of threaded sleeves 9. The annular grooves cooperate with the sealing gasket 12 to form a sealing cavity or provide a sealing surface.
[0037] The annular groove not only enhances the connection between the pressure regulating valve 4 and the two sets of threaded sleeves 9, but also prevents the two sets of threaded sleeves 9 from separating from the left and right ends of the pressure regulating valve 4.
[0038] Working principle: When the coke oven is started, the gas first enters the pressure regulating valve 4 through the gas collecting pipe 7. At this time, the controller 5 and data line 6 can perform preliminary pressure regulation of the gas. Then, the gas enters the buffer tank 1 through the gas inlet pipe 3 and is connected and discharged by the bellows 2 for subsequent processes. Throughout the process, the pressure gauge 8 displays the current gas pressure status in real time for the staff to observe and record. When it is necessary to check or maintain the pressure gauge 8, the protective sleeve 15 is pulled upward, causing the protective sleeve 15 to drive multiple sets of second return springs 18 to move upward outside the multiple sets of insert rods 17, thereby fully exposing the pressure gauge 8. At this time, the staff can check or clean and maintain the pressure gauge 8. After the operation is completed, the protective sleeve 15 is released. Under the reset action of the multiple sets of second return springs 18, the protective sleeve 15 slides back to reset, covering the pressure gauge 8 again, thus achieving effective protection of the pressure gauge 8.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
[0040] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.
Claims
1. A pressure stabilizer for a coke oven gas collecting pipe, characterized in that, The device includes a buffer tank (1) and a pressure regulating valve (4). A bellows (2) for venting gas is provided on the upper left side of the buffer tank (1). An air inlet pipe (3) is provided on the upper right side of the buffer tank (1). The right end of the air inlet pipe (3) is connected to the pressure regulating valve (4). A controller (5) is provided on one side of the pressure regulating valve (4). The controller (5) is electrically connected to the pressure regulating valve (4) via a data cable (6). A pressure gauge (8) is installed on the side of the pressure regulating valve (4) near the buffer tank (1). A protective component is provided on the pressure regulating valve (4).
2. The coke oven gas collecting pipe pressure stabilizer according to claim 1, characterized in that, The pressure regulating valve (4) is slidably fitted with threaded sleeves (9) at both ends. Multiple sets of pads (10) are provided at both ends of the pressure regulating valve (4). A first return spring (11) is sleeved on the air inlet pipe (3) of the buffer tank (1). The multiple sets of pads (10) and the multiple sets of the first return springs (11) are located between the left and right ends of the pressure regulating valve (4) and the two sets of threaded sleeves (9). The two sets of threaded sleeves (9) are respectively connected to the air inlet pipe (3) and the air collection pipe (7) by threads.
3. The coke oven gas collecting pipe pressure stabilizer according to claim 2, characterized in that, The threaded sleeve (9) is threadedly connected to the pipe corresponding to the pressure regulating valve (4), and the threaded sleeve (9) is threadedly connected to the gas collecting pipe (7). When the threaded sleeve (9) is tightened, the pad (10) is pushed to compress the first reset spring (11) to form an elastic sealing structure.
4. The coke oven gas collecting pipe pressure stabilizer according to claim 2, characterized in that, The pressure regulating valve (4) is provided with sealing gaskets (12) at both ends where it fits into the air inlet pipe (3) and the air collecting pipe (7).
5. The coke oven gas collecting pipe pressure stabilizer according to claim 1, characterized in that, The protective assembly includes two sets of clamps (13), which are sleeved and installed on the left end of the pressure regulating valve (4). A fixing plate (14) is fixedly installed on the upper end of the two sets of clamps (13). A protective sleeve (15) is movably installed on the upper end of the fixing plate (14). Multiple sets of movable slots (16) are opened in the protective sleeve (15). Multiple sets of insert rods (17) are fixedly installed on the upper side of the fixing plate (14). The multiple sets of insert rods (17) are movably inserted into the multiple sets of movable slots (16). A second return spring (18) is sleeved on each of the multiple sets of insert rods (17). The end of the second return spring (18) away from the fixing plate (14) abuts against the insert rod (17).
6. The coke oven gas collecting pipe pressure stabilizer according to claim 1, characterized in that, The inner diameter of the protective sleeve (15) is larger than the diameter of the pressure gauge (8), and the upper end of the pressure gauge (8) is inside the protective sleeve (15).
7. The coke oven gas collecting pipe pressure stabilizer according to claim 1, characterized in that, The pressure regulating valve (4) has an annular groove at the left and right ends where it fits with the two sets of threaded sleeves (9). The annular groove cooperates with the sealing gasket (12) to form a sealing cavity or provide a sealing surface.
8. The coke oven gas collecting pipe pressure stabilizer according to claim 1, characterized in that, The buffer tank (1) is connected to the gas collection pipe (7) through the air inlet pipe (3) and the pressure regulating valve (4), and the controller (5) regulates the pressure of the gas entering the buffer tank (1) through the pressure regulating valve (4).
9. The coke oven gas collecting pipe pressure stabilizer according to claim 1, characterized in that, The pressure gauge (8) displays the current gas pressure status in real time.
10. The coke oven gas collecting pipe pressure stabilizer according to claim 1, characterized in that, The protective sleeve (15) can slide upward along the insert (17) and compress the second return spring (18) to expose the pressure gauge (8). After being released, the pressure gauge (8) is covered again under the reset action of the second return spring (18).