Leakage-proof water seal assembly for ascension pipe of coke oven
By designing a leak-proof water seal assembly, using a protective cover and drive assembly to seal the water seal cavity, and combining temperature control and overflow structures, the sealing problem of the coke oven riser pipe water seal cover was solved, achieving water seal stability and waste heat recovery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-21
- Publication Date
- 2026-03-31
AI Technical Summary
The existing coke oven riser pipe water seal cover is prone to overflow or boiling water splashing out, resulting in poor sealing and affecting production safety.
A leak-proof water seal assembly was designed, comprising a base, inner sleeve, outer sleeve, support seat, support frame, pressure cap, and drive assembly. The water seal cavity is sealed with a protective cover, and the thermal conductivity is improved by combining a stepped cover and heat dissipation fins. The pressure cap is easily operated through the drive assembly. A sealing structure is set on the inner sleeve to enhance the sealing performance. At the same time, a temperature control valve and an overflow pipe are set to recover waste heat.
It effectively prevents water seal liquid splashing, improves sealing performance, reduces gas leakage, enables convenient operation, and recovers waste heat through temperature control and overflow structure to ensure the stability and safety of the water seal.
Smart Images
Figure CN224062711U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coke oven equipment technology, and in particular to a coke oven riser pipe anti-leakage water seal component. Background Technology
[0002] The coke oven riser is one of the most crucial pieces of equipment in the coking process. It is primarily used to extract the raw coal gas generated within the carbonization chamber and connect to the subsequent chemical product recovery system. Its function is to extract the raw coal gas: during coking, coal undergoes high-temperature dry distillation (approximately 1000℃) to produce raw coal gas (containing tar, ammonia, benzene, etc.). The riser guides the gas from the top of the carbonization chamber to the gas collecting pipe. Its structure includes: a cylinder body, typically made of heat-resistant cast iron or welded steel plates, lined with refractory material to resist high temperatures and chemical corrosion; water nozzles, which spray ammonia water to cool the raw coal gas and prevent tar condensation from clogging the pipes; a bridge pipe and valve body, connecting the riser and the gas collecting pipe, and regulating the gas flow rate via a flap valve; and a water seal cover, preventing gas leakage and ensuring a tight seal.
[0003] The water seal cover is designed to prevent coke oven gas from leaking out from the interface between the riser pipe and the gas collecting pipe, thus ensuring production safety. However, existing water seal covers may overflow or splash out after boiling, which can easily damage the water seal on the riser pipe and affect its safety.
[0004] Therefore, it is necessary to provide a new anti-leakage water seal assembly for coke oven riser pipes to solve the above-mentioned technical problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a coke oven riser pipe anti-leakage water seal component.
[0006] The coke oven riser pipe anti-leakage water seal assembly provided by this utility model includes: a base, the bottom end of which is provided with a connecting flange that connects to the coke oven riser pipe, the connecting flange having several threaded holes, an inner sleeve and an outer sleeve inside the base, a water seal cavity formed between the base, the inner sleeve and the outer sleeve, a support seat fixedly installed on one side of the outer sleeve, a support frame hinged on the support seat, a pressure cap that connects to the water seal cavity installed at the front end of the support frame, a drive assembly for driving the support frame to rotate installed on the support seat, and a protective cover for sealing the water seal cavity installed on the outer wall of the pressure cap, the maximum outer diameter of the protective cover being equal to the inner diameter of the outer sleeve.
[0007] Preferably, a stepped cover is installed at the bottom of the cover, and a plurality of heat dissipation fins are evenly installed at the top of the stepped cover.
[0008] Preferably, the top end of the inner sleeve is provided with an installation groove, a sealing ring is slidably installed in the installation groove, a plurality of limiting springs are evenly installed at the bottom end of the sealing ring, the plurality of limiting springs are inserted into the installation groove, and a groove is provided at the top end of the sealing ring, a sealing ring is embedded in the groove.
[0009] Preferably, the outer sleeve has a bevel on the side facing the support.
[0010] Preferably, the drive assembly includes a drive shaft rotatably mounted on the support base, with a transmission plate fixedly mounted on one end of the drive shaft, a pressure block fixedly mounted on the end of the transmission plate opposite to the drive shaft, and the end of the pressure block opposite to the transmission plate fixedly connected to the support frame. A worm gear is fixedly mounted on the other end of the drive shaft, a worm is rotatably mounted on the support base, the worm meshes with the worm wheel, a servo motor for driving the worm to rotate is mounted on the support base, and a handwheel is fixedly mounted on the end of the worm opposite to the servo motor.
[0011] Preferably, an inlet pipe communicating with the water seal cavity is embedded on one side of the outer sleeve, and a control valve is installed on the inlet pipe. A drain pipe communicating with the water seal cavity is embedded at the bottom of one side of the outer sleeve, and a temperature control valve is embedded on the drain pipe.
[0012] Preferably, an overflow pipe is connected to the outside of the temperature control valve on the drain pipe, and the end of the overflow pipe opposite to the drain pipe is connected to the water seal cavity, and the liquid inlet end of the overflow pipe is slightly higher than the liquid outlet end of the liquid inlet pipe.
[0013] Compared with related technologies, the coke oven riser pipe anti-leakage water seal assembly provided by this utility model has the following beneficial effects:
[0014] 1. This utility model provides a water seal component for preventing leakage of coke oven riser pipe. A protective cover is set on the pressure cap used for water sealing to cover the water seal cavity, which can reduce liquid boiling and splashing. Furthermore, a stepped cover and heat dissipation fins are set at the bottom of the pressure cap to facilitate heat conduction. A drive component is set to drive the pressure cap to open and close, making the pressure cap opening very convenient.
[0015] 2. An installation groove is provided on the inner sleeve, and a pressure sealing ring, a limit spring and a sealing ring are installed in the installation groove. This allows the pressure cover to form a seal with the inner sleeve when it is closed, which can reduce the amount of gas entering the water seal cavity, reduce the contamination of the liquid and improve the overall sealing performance. Attached Figure Description
[0016] Figure 1 A schematic diagram of a preferred embodiment of the anti-leakage water seal assembly for the coke oven riser pipe provided by this utility model;
[0017] Figure 2A schematic diagram of the open state of the anti-leakage water seal assembly for the coke oven riser pipe provided by this utility model;
[0018] Figure 3 A cross-sectional structural schematic diagram of the anti-leakage water seal assembly for the coke oven riser pipe provided by this utility model;
[0019] Figure 4 for Figure 2 A magnified view of part A shown.
[0020] The following are the labeling elements in the diagram: 1. Base; 11. Connecting flange; 12. Inner sleeve; 121. Sealing ring; 122. Limiting spring; 123. Sealing ring; 13. Outer sleeve; 101. Water seal cavity; 2. Support seat; 3. Support frame; 4. Pressure cap; 41. Protective cover; 42. Stepped cover; 43. Heat dissipation fins; 5. Drive assembly; 51. Drive shaft; 52. Transmission plate; 53. Pressure block; 54. Worm gear; 55. Worm; 56. Servo motor; 57. Handwheel; 6. Inlet pipe; 61. Control valve; 7. Drain pipe; 71. Temperature control valve; 72. Overflow pipe. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0022] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.
[0023] Please see Figures 1 to 4 This utility model provides a coke oven riser pipe anti-leakage water seal assembly, which includes:
[0024] The base 1 has a connecting flange 11 at its bottom end that connects to the coke oven riser pipe. Each connecting flange 11 has several threaded holes. The base 1 has an inner sleeve 12 and an outer sleeve 13. A water seal cavity 101 is formed between the base 1, the inner sleeve 12, and the outer sleeve 13. A support seat 2 is fixedly installed on one side of the outer sleeve 13. A support frame 3 is hinged to the support seat 2. A pressure cap 4 that connects to the water seal cavity 101 is installed at the front end of the support frame 3. A drive assembly 5 that drives the support frame 3 to rotate is installed on the support seat 2. A protective cover 41 for sealing the water seal cavity 101 is installed on the outer wall of the pressure cap 4. The maximum outer diameter of the protective cover 41 is equal to the inner diameter of the outer sleeve 13.
[0025] It should be noted that during use, after connecting the base 1 to the riser pipe using the connecting flange 11, during the venting process, the drive assembly 5 drives the support frame 3 to rotate around the support base 2 until the pressure cap 4 rotates into the water seal cavity 101, and the protective cover 41 covers the top of the water seal cavity 101. Then, liquid is injected into the water seal cavity 101 to form a water seal. When the liquid in the water seal cavity 101 is heated, the protective cover 41 can prevent splashing while trapping water vapor, reducing water loss and ensuring the stability of the water seal.
[0026] In this embodiment: a stepped cover 42 is installed at the bottom of the pressure cover 4, and a number of heat dissipation fins 43 are evenly installed at the top of the stepped cover 42. In this way, when liquid is poured into the water seal cavity 101, and when waste gas is discharged, the pressure cover 4 increases the contact area with the liquid by using the stepped cover 42 and the heat dissipation fins 43, improves thermal conductivity, and facilitates the recovery and utilization of waste heat.
[0027] The outer sleeve 13 has a bevel on the side facing the support base 2, which makes it easy for the support frame 3 to rotate into the water seal cavity 101 when the pressure cap 4 is rotated, thus avoiding the outer sleeve 13 from blocking or limiting it.
[0028] In the embodiments of this utility model, please refer to Figures 1 to 4 The inner sleeve 12 has an installation groove at its top end, and a sealing ring 121 is slidably installed in the installation groove. Several limiting springs 122 are evenly installed at the bottom end of the sealing ring 121, and the several limiting springs 122 are inserted into the installation groove. The sealing ring 121 has a groove at its top end, and a sealing ring 123 is embedded in the groove.
[0029] It should be noted that when the pressure cap 4 is pressed on top of the inner sleeve 12, the sealing ring 121, under the action of the limiting spring 122, presses the sealing ring 123 against the top of the inner cavity of the pressure cap 4, thereby forming a seal between the inner sleeve 12 and the pressure cap 4 by using the sealing ring 121, which can prevent too much gas from rushing into the water seal cavity 101.
[0030] In the embodiments of this utility model, please refer to Figures 1 to 4The drive assembly 5 includes a drive shaft 51, which is rotatably mounted on the support base 2. A transmission plate 52 is fixedly mounted on one end of the drive shaft 51. A pressure block 53 is fixedly mounted on the end of the transmission plate 52 opposite to the drive shaft 51. The end of the pressure block 53 opposite to the transmission plate 52 is fixedly connected to the support frame 3. A worm gear 54 is fixedly mounted on the other end of the drive shaft 51. A worm 55 is rotatably mounted on the support base 2. The worm 55 meshes with the worm gear 54. A servo motor 56 for driving the worm 55 to rotate is mounted on the support base 2. A handwheel 57 is fixedly mounted on the end of the worm 55 opposite to the servo motor 56.
[0031] It should be noted that when the drive assembly 5 is in use, the servo motor 56 drives the worm gear 55 to rotate. The rotation of the worm gear 55 drives the worm wheel 54 to rotate, which in turn drives the drive shaft 51 to rotate. When the drive shaft 51 rotates, it drives the support frame 3 to rotate around the support base 2 through the transmission plate 52 and the pressure block 53, thereby causing the pressure cover 4 to open or close the water seal chamber 101.
[0032] In the embodiments of this utility model, please refer to Figures 1 to 4 One side of the outer sleeve 13 is fitted with an inlet pipe 6 that communicates with the water seal cavity 101. A control valve 61 is installed on the inlet pipe 6. The bottom end of one side of the outer sleeve 13 is fitted with a drain pipe 7 that communicates with the water seal cavity 101. A temperature control valve 71 is installed on the drain pipe 7.
[0033] The drain pipe 7 is connected to an overflow pipe 72 outside the temperature control valve 71. The end of the overflow pipe 72 away from the drain pipe 7 is connected to the water seal cavity 101, and the inlet end of the overflow pipe 72 is slightly higher than the outlet end of the inlet pipe 6.
[0034] It should be noted that, in order to utilize the water seal while recovering waste heat, the liquid in the water seal chamber 101 can be heated to recover heat energy. Specifically, during water sealing, when replenishing liquid through the inlet pipe 6, the control valve 61 is opened to deliver a quantitative amount of liquid, and then closed. When the liquid in the water seal chamber 101 is heated to the set temperature, the drain pipe 7 is opened using the temperature control valve 71 to discharge the hot water. When the water level reaches the stepped cover 42, the valve is closed. Then, the control valve 61 is opened again to replenish water, and then the water is heated and discharged, forming a heating cycle to fully recover waste heat. When too much liquid is discharged, it is directly discharged into the drain pipe 7 using the overflow pipe 72 to avoid liquid overflowing into the riser pipe and causing pipe damage.
[0035] It is worth noting that both the temperature control valve 71 and the control valve 61 are electrically connected to an external control device using existing technology, thus facilitating remote control operation.
[0036] The working principle of the anti-leakage water seal assembly for the coke oven riser pipe provided by this utility model is as follows:
[0037] In use, after connecting the base 1 to the riser pipe using the connecting flange 11, during the venting process, the drive assembly 5 drives the support frame 3 to rotate around the support base 2 until the pressure cover 4 rotates into the water seal cavity 101. The protective cover 41 then seals the top of the water seal cavity 101. Liquid is then injected into the water seal cavity 101 to form a water seal. When the liquid in the water seal cavity 101 is heated, the protective cover 41 prevents splashing while trapping water vapor, reducing water loss and ensuring the stability of the water seal. At the same time, when the waste gas is discharged, the pressure cover 4 uses the stepped cover 42 and heat dissipation fins 43 to increase the contact area with the liquid, improve thermal conductivity, and facilitate the recovery and utilization of waste heat.
[0038] Furthermore, while utilizing the water seal, waste heat can be recovered and utilized. The liquid can be heated using the water seal chamber 101 to recover heat energy. Specifically, during water sealing, when replenishing liquid through the liquid inlet pipe 6, the control valve 61 is opened to deliver a quantitative amount of liquid, and then closed. When the liquid in the water seal chamber 101 is heated to the set temperature, the drain pipe 7 is opened using the temperature control valve 71 to discharge the hot water. When the water level reaches the stepped cover 42, the valve is closed. Then, the control valve 61 is opened again to replenish water, and then the water is heated and discharged, forming a heating cycle to fully recover waste heat. When too much liquid is discharged, it is directly discharged into the drain pipe 7 using the overflow pipe 72 to avoid liquid overflowing into the riser pipe and causing pipe damage.
[0039] The circuits and controls involved in this utility model are all existing technologies and will not be described in detail here.
[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A coke oven uptake tube leak-proof water seal assembly comprising: The base (1) is characterized in that the bottom end of the base (1) is provided with a connecting flange (11) for connecting with the coke oven rising pipe, the connecting flange (11) is provided with a plurality of mounting threaded holes, the base (1) is provided with an inner sleeve (12) and an outer sleeve (13), a water seal cavity (101) is formed between the base (1), the inner sleeve (12) and the outer sleeve (13), a support seat (2) is fixedly installed on one side of the outer sleeve (13), a support frame (3) is hingedly connected to the support seat (2), a gland (4) for connecting with the water seal cavity (101) is installed at the front end of the support frame (3), a drive assembly (5) for driving the support frame (3) to rotate is installed on the support seat (2), a protective cover (41) for sealing the water seal cavity (101) is installed on the outer side wall of the gland (4), and the maximum outer diameter of the protective cover (41) is equal to the inner diameter of the outer sleeve (13).
2. The coke oven uptake tube leak-proof water seal assembly of claim 1, wherein, The bottom end of the gland (4) is provided with a stepped cover (42), and a plurality of heat dissipation fins (43) are uniformly installed at the top end of the stepped cover (42).
3. The coke oven uptake tube leak-proof water seal assembly of claim 1, wherein, The top end of the inner sleeve (12) is provided with a mounting groove, a compression sealing sleeve ring (121) is slidably installed in the mounting groove, a plurality of limiting springs (122) are uniformly installed at the bottom end of the compression sealing sleeve ring (121), the limiting springs (122) are inserted into the mounting groove, and a recess is formed at the top end of the compression sealing sleeve ring (121), and a sealing ring (123) is embedded in the recess.
4. The coke oven uptake tube leak-proof water seal assembly of claim 1, wherein, The outer sleeve (13) is provided with a bevel on the side facing the support seat (2).
5. The coke oven uptake tube leak-proof water seal assembly according to claim 1, wherein, The drive assembly (5) comprises a drive shaft (51), the drive shaft (51) is rotatably installed on the support seat (2), one end of the drive shaft (51) is fixedly provided with a transmission plate (52), the end of the transmission plate (52) away from the drive shaft (51) is fixedly provided with a pressing block (53), the end of the pressing block (53) away from the transmission plate (52) is fixedly connected with the support frame (3), the other end of the drive shaft (51) is fixedly provided with a worm wheel (54), a worm (55) is rotatably installed on the support seat (2), the worm (55) is engaged with the worm wheel (54), a servo motor (56) for driving the worm (55) to rotate is installed on the support seat (2), and a hand wheel (57) is fixedly installed on the end of the worm (55) away from the servo motor (56).
6. The coke oven uptake tube leak-proof water seal assembly according to claim 1, wherein, A liquid inlet pipe (6) communicating with the water seal cavity (101) is embedded on one side of the outer sleeve (13), and a control valve (61) is installed on the liquid inlet pipe (6).
7. The coke oven uptake tube leak-proof seal assembly of claim 6, wherein, A liquid outlet pipe (7) communicating with the water seal cavity (101) is embedded on the bottom end of one side of the outer sleeve (13), and a temperature control valve (71) is embedded on the liquid outlet pipe (7). An overflow pipe (72) is communicated with the outside of the temperature control valve (71) on the liquid outlet pipe (7), one end of the overflow pipe (72) away from the liquid outlet pipe (7) is communicated with the water seal cavity (101), and the liquid inlet end of the overflow pipe (72) is slightly higher than the liquid outlet end of the liquid inlet pipe (6).