Coke oven gas lower spray pipe with leak-proof structure

Abstract

The utility model belongs to the technical field of coke oven pipelines, and particularly relates to a coke oven gas lower spray pipe with a leak-proof structure, which comprises a coke oven gas delivery pipe and a lower spray pipe, and a connecting mechanism is arranged between the delivery pipe and the lower spray pipe. The connecting mechanism comprises an upper shell fixedly arranged on the outer side of the conveying pipe in a sleeving mode and a lower shell fixedly arranged on the outer side of the lower spraying pipe in a sleeving mode, and sealing mechanisms are arranged among the conveying pipe, the lower spraying pipe and the upper shell. The air leakage prevention device is reasonable in structural design, air can be continuously pressed into the air bag by continuously pressing the pressing rod downwards, the air bag is gradually inflated and expanded, the expanded air bag can be firmly connected to the connecting position of the conveying pipe and the lower spraying pipe in an abutting mode, then the connecting position can be well sealed, the sealing and air leakage prevention effects are better, and if leakage occurs, the air leakage prevention effect is better. And the alarm gives an alarm sound so as to timely remind a person of air leakage at the position, and the person needs to timely take corresponding remedial measures.

Description

Technical Field

[0001] This utility model relates to the field of coke oven pipeline technology, and in particular to a coke oven gas downspout with a leak-proof structure. Background Technology

[0002] Coke oven gas, also known as coke oven coal gas, is a high-calorific-value gas, crude coal gas, or raw coal gas, produced during the high-temperature dry distillation of coke ovens made from a blend of several types of bituminous coal. It is a byproduct of the coking industry, producing coke and coal tar. Currently, coking processes require dedicated pipelines for the discharge of coke oven gas.

[0003] A search revealed a novel coke oven gas down-spraying pipe with Chinese patent number CN213537802U, comprising a down-spraying pipe, a gas nozzle fixedly installed on the inner wall of the down-spraying pipe, a special-shaped tee pipe fixedly connected to the bottom end of the down-spraying pipe, a gas horizontal pipe fixedly connected to the outer end of the special-shaped tee pipe, and a gas cock fixedly connected to the outer wall of the gas horizontal pipe.

[0004] However, the coke oven gas down-spraying pipes described above still have shortcomings. The sealing effect at the connection of the coke oven gas down-spraying pipe is not good, and gas leakage is prone to occur. In addition, there is no leakage detection structure at the connection of the coke oven gas down-spraying pipe, so it is impossible to monitor the leakage of the down-spraying pipe in real time. Once a leakage occurs, it is inconvenient to issue an alarm and take corresponding measures in time. Therefore, we propose a coke oven gas down-spraying pipe with a leakage prevention structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned shortcomings by proposing a coke oven gas downspout with a leak-proof structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A coke oven gas downspout with a leak-proof structure includes a coke oven gas delivery pipe and a downspout. A connecting mechanism is provided between the delivery pipe and the downspout. The connecting mechanism includes an upper housing fixedly sleeved on the outside of the delivery pipe and a lower housing fixedly sleeved on the outside of the downspout. A sealing mechanism is provided between the delivery pipe, the downspout, and the upper housing. A gas leak detection mechanism is provided on the upper housing. A controller is fixedly connected to one side of the upper housing.

[0008] As a preferred embodiment of this utility model, a sealing ring is fixedly connected to the side of the lower shell and the upper shell that are close to each other, and the two sealing rings abut against each other.

[0009] As a preferred embodiment of this utility model, both sides of the lower shell and the upper shell are fixedly connected with ear plates, and the two ear plates on the same side are threadedly connected with the same bolt.

[0010] In a preferred embodiment of this utility model, the sealing mechanism includes a connecting ring fixedly sleeved on the outside of the delivery pipe and a sealing cylinder fixedly connected to the top of the upper housing. The lower spray pipe is slidably sleeved inside the connecting ring. An air bladder is fixedly connected inside the connecting ring. The sealing cylinder and the air bladder are fixedly connected to the same inflation pipe. An air inlet pipe is fixedly connected to one side of the sealing cylinder. A spring is fixedly connected to the bottom inner wall of the sealing cylinder. A piston is fixedly connected to the top of the spring. A slider is slidably mounted on the top of the piston. A pressure rod is rotatably connected to the top of the slider. An installation port is opened on one side of the sealing cylinder. The pressure rod is rotatably connected to the front and rear inner walls of the installation port.

[0011] As a preferred embodiment of this invention, an upper one-way valve is provided on the air intake pipe, and a lower one-way valve is provided on the inflation pipe.

[0012] In a preferred embodiment of this invention, the top of the piston is fixedly connected to two vertical plates, and a guide plate is fixedly connected between the two vertical plates. The slider is slidably sleeved on the outside of the guide plate.

[0013] In a preferred embodiment of this invention, the gas leak detection mechanism includes a connecting pipe fixedly connected to the top of the upper housing, a cylinder fixedly connected to the top of the connecting pipe, a pressure sensor fixedly connected to the inner wall of the top of the cylinder, an alarm fixedly connected to the top of the cylinder, a second spring fixedly connected to the top of the second spring, a sliding plate fixedly connected to the top of the second spring, the sliding plate being slidably and sealingly fitted inside the cylinder, a pressing block fixedly connected to the top of the sliding plate, and a rubber pad fixedly connected to the top of the pressing block, the rubber pad cooperating with the pressure sensor.

[0014] In a preferred embodiment of this invention, the pressure sensor and the alarm are electrically connected to the controller, and two round rods are fixedly connected to the inner wall of the top and bottom of the cylinder, with the sliding plate slidably sleeved on the outside of the two round rods.

[0015] In this utility model, a coke oven gas lower spray pipe with a leak-proof structure is provided. The upper and lower shells are connected and fixed together by the setting of ear plates and bolts. At the same time, the lower spray pipe is inserted into the connecting ring for connection. By continuously pressing down the pressure rod, the pressure rod drives the slider to slide on the guide plate and drives the piston to move upward. With the guidance of the upper and lower one-way valves, the upward movement of the piston can draw outside air from the air inlet pipe into the sealing cylinder. Then, the pressure rod is released. At this time, under the elastic force of the spring, the piston moves down and can force the air in the sealing cylinder into the air filling pipe and the air bladder. Although the pressure rod is continuously pressed down, air can be continuously forced into the air bladder, causing the air bladder to gradually inflate and expand. Then, the air bladder can be pressed against the connection between the coke oven gas delivery pipe and the lower spray pipe, thus providing a good seal at the connection and making the leak-proof effect better.

[0016] In this utility model, a coke oven gas lower spray pipe with a leak-proof structure is described. If a gas leak occurs, the coke oven gas leaks from the connection between the conveying pipe and the lower spray pipe into the upper and lower shells and cylinder. As the coke oven gas continues to leak, its pressure gradually increases. Under the action of the gas pressure, the sliding plate can be pushed upward. When the pressing block and the rubber pad abut against the pressure sensor, the pressure sensor value increases and sends a signal to the controller. The controller activates the alarm, and the alarm sounds to promptly remind personnel of the gas leak, requiring personnel to take appropriate remedial measures in a timely manner.

[0017] This utility model has a reasonable structural design. By continuously pressing down the pressure rod, air can be continuously forced into the airbag, causing the airbag to gradually inflate and expand. The expanded airbag can firmly press against the connection between the delivery pipe and the lower spray pipe, thereby effectively sealing the connection and improving the airtightness. If a leak occurs, the alarm will sound to promptly remind personnel of the leak and to take appropriate remedial measures. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a coke oven gas lower spray pipe with a leak-proof structure proposed in this utility model.

[0019] Figure 2 This is a cross-sectional view of a coke oven gas lower spray pipe with a leak-proof structure proposed in this utility model.

[0020] Figure 3 A cross-sectional perspective view of a sealing mechanism for a coke oven gas lower nozzle with a leak-proof structure proposed in this utility model.

[0021] Figure 4 This is a cross-sectional perspective view of a gas leak detection mechanism for a coke oven gas lower nozzle with a leak-proof structure, as proposed in this utility model.

[0022] In the diagram: 1. Delivery pipe; 2. Lower nozzle; 3. Upper housing; 4. Lower housing; 5. Sealing ring; 6. Ear plate; 7. Bolt; 8. Sealing mechanism; 9. Gas leak detection mechanism; 10. Controller; 801. Connecting ring; 802. Airbag; 803. Inflation pipe; 804. Lower one-way valve; 805. Air inlet pipe; 806. Upper one-way valve; 807. Spring one; 808. Piston; 809. Guide plate; 810. Slider; 811. Sealing cylinder; 812. Pressure rod; 813. Vertical plate; 814. Mounting port; 91. Cylinder; 92. Alarm; 93. Pressure sensor; 94. Rubber pad; 95. Pressing block; 96. Round rod; 97. Connecting pipe; 98. Slide plate; 99. Spring two. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-4 A coke oven gas lower spray pipe with a leak-proof structure includes a coke oven gas conveying pipe 1 and a lower spray pipe 2. A connecting mechanism is provided between the conveying pipe 1 and the lower spray pipe 2. The connecting mechanism includes an upper housing 3 fixedly sleeved on the outside of the conveying pipe 1 and a lower housing 4 fixedly sleeved on the outside of the lower spray pipe 2. A sealing mechanism 8 is provided between the conveying pipe 1, the lower spray pipe 2 and the upper housing 3. A gas leak detection mechanism 9 is provided on the upper housing 3. A controller 10 is fixedly connected to one side of the upper housing 3.

[0025] Furthermore, sealing rings 5 ​​are fixedly connected to the sides of the lower housing 4 and the upper housing 3 that are close to each other. The two sealing rings 5 ​​abut against each other, thereby improving the sealing performance between the upper and lower housings.

[0026] Furthermore, ear plates 6 are fixedly connected to both sides of the lower housing 4 and the upper housing 3. The same bolt 7 is threaded onto the two ear plates 6 on the same side. The ear plates 6 and bolt 7 facilitate the connection and fixation between the upper and lower housings.

[0027] Furthermore, refer to Figure 1-3As shown, the sealing mechanism 8 includes a connecting ring 801 fixedly sleeved on the outside of the delivery pipe 1, and a sealing cylinder 811 fixedly connected to the top of the upper housing 3. The lower spray pipe 2 is slidably sleeved inside the connecting ring 801. An airbag 802 is fixedly connected inside the connecting ring 801. The sealing cylinder 811 and the airbag 802 are fixedly connected to the same inflation pipe 803. An air inlet pipe 805 is fixedly connected to one side of the sealing cylinder 811. A spring 807 is fixedly connected to the bottom inner wall of the sealing cylinder 811. A piston 808 is fixedly connected to the top of the spring 807. A slider 810 is slidably arranged on the top of the piston 808. A pressure rod 812 is rotatably connected to the top of the slider 810. An installation port 814 is opened on one side of the sealing cylinder 811. The pressure rod 812 is rotatably connected to the front and rear inner walls of the installation port 814. An upper one-way valve 806 is provided on the air inlet pipe 805, and a lower one-way valve 804 is provided on the inflation pipe 803.

[0028] Using the above scheme: the upper housing 3 and lower housing 4 are connected and fixed together by the ear plate 6 and bolt 7. At the same time, the lower nozzle 2 is inserted into the connecting ring 801 for connection. By continuously pressing down the pressure rod 812, the pressure rod 812 drives the slider 810 to slide on the guide plate 809, and drives the piston 808 to move upward. The pull rope spring 807, guided by the upper and lower one-way valves, can draw outside air from the air intake pipe 805 into the sealing cylinder 811. After releasing the pressure rod 812, under the elastic force of the spring 807, the piston 808 moves down, which can force the air in the sealing cylinder 811 into the inflation pipe 803 and the air bag 802. Although the pressure rod 812 is continuously pressed down, air can be continuously forced into the air bag 802, causing the air bag 802 to gradually inflate and expand. Then, the air bag 802 can be pressed against the connection between the coke oven gas conveying pipe 1 and the lower spray pipe 2, thus sealing the connection well and making the air leakage prevention effect better.

[0029] Furthermore, two vertical plates 813 are fixedly connected to the top of the piston 808, and the same guide plate 809 is fixedly connected between the two vertical plates 813. The slider 810 is slidably sleeved on the outside of the guide plate 809, which facilitates the guidance of the slider 810 and makes its movement more stable and smooth.

[0030] Furthermore, refer to Figure 1 , Figure 2 and Figure 4As shown, the gas leak detection mechanism 9 includes a connecting pipe 97 fixedly connected to the top of the upper housing 3. The top of the connecting pipe 97 is fixedly connected to a cylinder 91. A pressure sensor 93 is fixedly connected to the inner wall of the top of the cylinder 91. An alarm 92 is fixedly connected to the top of the cylinder 91. A second spring 99 is fixedly fixed to the top of the cylinder 91. A sliding plate 98 is fixedly connected to the top of the second spring 99. The sliding plate 98 is slidably sealed inside the cylinder 91. A pressing block 95 is fixedly connected to the top of the sliding plate 98. A rubber pad 94 is fixedly connected to the top of the pressing block 95. The rubber pad 94 cooperates with the pressure sensor 93. Both the pressure sensor 93 and the alarm 92 are electrically connected to the controller 10.

[0031] Using the above scheme: If a gas leak occurs, coke oven gas leaks from the connection between the conveying pipe 1 and the lower spray pipe 2 into the upper and lower shells and cylinder 91. As the coke oven gas continues to leak, its pressure gradually increases. Under the action of the pressure, the sliding plate 98 can be pushed upward. When the pressing block 95 and the rubber pad 94 abut against the pressure sensor 93, the value of the pressure sensor 93 increases and sends a signal to the controller 10. The controller 10 activates the alarm 92 to work, and the alarm 92 sounds an alarm to promptly remind personnel that there is a gas leak and that personnel need to take appropriate remedial measures in time.

[0032] Furthermore, two round rods 96 are fixedly connected to the inner top and bottom walls of the cylinder 91. The slide plate 98 is slidably sleeved on the outside of the two round rods 96, which facilitates the guidance of the slide plate 98 and makes its movement more stable and smooth.

[0033] In this invention, during use, the upper housing 3 and lower housing 4 are connected and fixed together by the ear plate 6 and bolt 7. Simultaneously, the lower nozzle 2 is inserted into the connecting ring 801 for connection. By continuously pressing down the pressure rod 812, the pressure rod 812 drives the slider 810 to slide on the guide plate 809, which in turn drives the piston 808 to move upwards. The pull rope spring 807, guided by the upper and lower one-way valves, draws outside air from the air intake pipe 805 to the sealing cylinder 811. Then, the pressure rod 812 is released. At this time, under the elastic force of the spring 807, the piston 808 moves down and can force the air in the sealing cylinder 811 into the inflation pipe 803 and the air bag 802. Although the pressure rod 812 is continuously pressed down, air can be continuously forced into the air bag 802, causing the air bag 802 to gradually inflate and expand. Then, the air bag 802 can be pressed against the connection between the coke oven gas conveying pipe 1 and the lower spray pipe 2, thus sealing the connection well and making the air leakage prevention effect better.

[0034] If a gas leak occurs, coke oven gas leaks from the connection between the conveying pipe 1 and the lower spray pipe 2 into the upper and lower shells and cylinder 91. As the coke oven gas continues to leak, its pressure gradually increases. Under the action of the pressure, the sliding plate 98 can be pushed upward. When the pressing block 95 and the rubber pad 94 abut against the pressure sensor 93, the value of the pressure sensor 93 increases and sends a signal to the controller 10. The controller 10 activates the alarm 92 and the alarm 92 sounds to promptly remind personnel of the gas leak and to take appropriate remedial measures in a timely manner.

[0035] 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.

Claims

1. A coke oven gas lower spray pipe with a leak-proof structure, characterized in that, The system includes a coke oven gas conveying pipe (1) and a lower spray pipe (2). A connecting mechanism is provided between the conveying pipe (1) and the lower spray pipe (2). The connecting mechanism includes an upper shell (3) fixedly sleeved on the outside of the conveying pipe (1) and a lower shell (4) fixedly sleeved on the outside of the lower spray pipe (2). A sealing mechanism (8) is provided between the conveying pipe (1), the lower spray pipe (2) and the upper shell (3). A gas leakage detection mechanism (9) is provided on the upper shell (3). A controller (10) is fixedly connected to one side of the upper shell (3). The gas leakage detection mechanism (9) includes a connecting pipe (97) fixedly connected to the top of the upper shell (3). A cylinder (91) is fixedly connected to the top of the connecting pipe (97). A pressure transmitter is fixedly connected to the inner wall of the top of the cylinder (91). The top of the cylinder (91) is fixedly connected to an alarm (92), the top of the cylinder (91) is fixedly connected to a spring (99), the top of the spring (99) is fixedly connected to a slide plate (98), the slide plate (98) is slidably sealed inside the cylinder (91), the top of the slide plate (98) is fixedly connected to a pressing block (95), the top of the pressing block (95) is fixedly connected to a rubber pad (94), the rubber pad (94) cooperates with the pressure sensor (93), the pressure sensor (93) and the alarm (92) are both electrically connected to the controller (10), the top inner wall and the bottom inner wall of the cylinder (91) are fixedly connected to two round rods (96), and the slide plate (98) is slidably sleeved on the outside of the two round rods (96).

2. The coke oven gas lower spray pipe with a leak-proof structure according to claim 1, characterized in that, The lower housing (4) and the upper housing (3) are both fixedly connected to a sealing ring (5) on the side that is close to each other, and the two sealing rings (5) abut against each other.

3. A coke oven gas lower spray pipe with a leak-proof structure according to claim 1, characterized in that, The lower housing (4) and the upper housing (3) are both fixedly connected to ear plates (6), and the two ear plates (6) on the same side are threaded with the same bolt (7).

4. A coke oven gas lower spray pipe with a leak-proof structure according to claim 1, characterized in that, The sealing mechanism (8) includes a connecting ring (801) fixedly sleeved on the outside of the delivery pipe (1) and a sealing cylinder (811) fixedly connected to the top of the upper housing (3). The lower spray pipe (2) is slidably sleeved inside the connecting ring (801). An airbag (802) is fixedly connected inside the connecting ring (801). The sealing cylinder (811) and the airbag (802) are fixedly connected by the same inflation pipe (803). An air inlet pipe (804) is fixedly connected to one side of the sealing cylinder (811). 05), a spring (807) is fixedly connected to the bottom inner wall of the sealing cylinder (811), a piston (808) is fixedly connected to the top of the spring (807), a slider (810) is slidably provided on the top of the piston (808), a pressure rod (812) is rotatably connected to the top of the slider (810), an installation port (814) is opened on one side of the sealing cylinder (811), and the pressure rod (812) is rotatably connected to the front and rear inner walls of the installation port (814).

5. A coke oven gas downspout with a leak-proof structure according to claim 4, characterized in that, An upper one-way valve (806) is provided on the air intake pipe (805), and a lower one-way valve (804) is provided on the air filling pipe (803).

6. A coke oven gas lower spray pipe with a leak-proof structure according to claim 4, characterized in that, The piston (808) has two vertical plates (813) fixedly connected to its top, and the same guide plate (809) is fixedly connected between the two vertical plates (813). The slider (810) is slidably sleeved on the outside of the guide plate (809).

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