CN217978388U

CN217978388U - Coal gas drainer

Info

Publication number: CN217978388U
Application number: CN202221944542.0U
Authority: CN
Inventors: 韩全喜; 邱尔鹏; 周春雷; 陈益; 符立峰; 郭斌
Original assignee: Zenith Steel Group Nantong Co Ltd
Current assignee: Zenith Steel Group Nantong Co Ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-12-06
Anticipated expiration: 2032-07-27

Abstract

The utility model discloses a coal gas drainer, including water storage mechanism and drainage mechanism, drainage mechanism includes the drain cylinder, prevents leaking portion and outlet, the drain cylinder upper end is formed with a section of thick bamboo through-hole, the lower extreme is connected with water storage mechanism and communicates, prevent leaking the portion including limiting plate, guide plate, the supporter, the closing plate, the flotation pontoon, the guide plate is fixed on the inner wall of drain cylinder and has the water conservancy diversion through-hole, the limiting plate is fixed on the inner wall of drain cylinder and is located the upside of guide plate, have the water drainage through-hole, the supporter is arranged in on the up end of drain cylinder, the upper end and the supporter fixed connection of flotation pontoon, the lower extreme and closing plate fixed connection, the closing plate is located between water drainage through-hole and the water conservancy diversion through-hole, the outlet sets up on the drain cylinder and is located the limiting plate's top; the utility model discloses a coal gas drainer can normally drain water to the gas recovery pipeline, when the gas pipeline internal gas pressure was too big, can seal the drainage through hole, prevents that coal gas from revealing.

Description

Coal gas drainer

Technical Field

The utility model relates to a coal gas recovery technical field, in particular to coal gas drainer.

Background

Converter steelmaking is a main steelmaking process in China, and during the severe oxidation period of carbon element in converter steelmaking, a large amount of high-temperature coal gas containing CO (accounting for about 70% of the volume of the coal gas) and dust is generated, so that the converter steelmaking not only causes great damage to human bodies and serious pollution to the environment, but also causes a large amount of energy waste, and therefore, the converter steelmaking is required to be purified and recycled, and the sustainable development is promoted.

The converter gas purification and recovery technology can be divided into a dry method and a wet method, wherein the application of the converter gas dry dedusting technology can effectively improve the energy conversion efficiency and achieve the purposes of saving new water, saving energy and reducing emission. Meanwhile, the method can greatly reduce the consumption of water resources, reduce the emission of coal gas and recycle steam, and is a modern key technology for realizing efficient energy conversion.

Converter gas at about 1500 ℃ passes through a gas cooling system under the pumping action of a gas fan, and enters an evaporative cooler after the temperature is reduced to about 1000 ℃; the evaporative cooler is uniformly provided with double-medium atomizing cooling nozzles for cooling, tempering and coarse dust removal of the coal gas, and the temperature of the coal gas is reduced to about 200 ℃. And then, the coal gas enters a circular electrostatic dust collector with 4 electric fields, and the dust content of the coal gas is reduced to below 10mg/m after dust removal by the electrostatic dust collector. And the gas subjected to fine dust removal by the electrostatic dust remover is cooled to below 65 ℃ by a gas cooler and then enters a switching station, qualified gas is communicated to a gas cabinet, and unqualified gas is diffused by a diffusing device.

Although the dry dedusting technology for converter gas has good environmental protection and energy saving effects and economic benefits, the converter operation and system control requirements are high, so that a plurality of problems exist in the practical application process.

When the gas recovery pipeline is under high pressure, gas can be leaked from the gas drainer, so that major safety accidents are caused, and the gas drainer is designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome foretell not enough, the utility model provides a coal gas drainer, normal and the storage water tank water level is normal when the coal gas atmospheric pressure, can carry out normal drainage, when the gas pipeline internal gas pressure is too big, can seal the drainage through-hole, prevents that coal gas from revealing.

The utility model provides a pair of coal gas drainer, including water storage mechanism and drainage mechanism, water storage mechanism's import is used for inserting the coal gas recovery pipeline, drainage mechanism includes the drainage cylinder, prevent leakage portion and outlet, the drainage cylinder upper end is formed with a section of thick bamboo through-hole, the lower extreme is connected and is linked together with water storage mechanism, prevent leaking the portion and including the limiting plate, the guide plate, the supporter, the closing plate, the flotation pontoon, the guide plate is fixed on the inner wall of drainage cylinder and has the water conservancy diversion through-hole, the limiting plate is fixed on the inner wall of drainage cylinder and is located the upside of guide plate, the drainage through-hole has, the supporter is arranged in on the up end of drainage cylinder, the upper end of flotation pontoon stretch out a through-hole and with supporter fixed connection, lower extreme and closing plate fixed connection, the closing plate is located between drainage through-hole and the water conservancy diversion through-hole and is used for sealing the drainage through-hole, the outlet setting is on the drainage cylinder and is located the top of limiting plate.

Further, still include the moisturizing pipe, the entrance point of moisturizing pipe is used for inserting the water source, and the exit end and the water storage mechanism of moisturizing pipe are connected and are communicate.

Furthermore, the leakage-proof part also comprises an alarm and a proximity switch which is fixedly arranged and used for sensing the supporting block, and a controller of the alarm is electrically connected with the proximity switch.

Further, the coal gas recovery device also comprises a coal gas connecting pipe, wherein the upper end of the coal gas connecting pipe is used for connecting a coal gas recovery pipeline, and the lower end of the coal gas connecting pipe is connected and communicated with the water storage mechanism.

Further, a gate valve is arranged on the gas connecting pipe.

Further, the lateral part of water storage mechanism is provided with the drain, and the drain is used for passing through sewage pipes access blowdown system, is provided with the valve on the sewage pipes.

Furthermore, the guide plate comprises a plate body and a guide ring, the plate body is provided with a central through hole, and the annular hole of the guide ring and the central through hole are coaxially arranged, so that the annular hole of the guide ring and the central through hole jointly form the guide through hole.

Furthermore, the diameter of the sealing plate is larger than or equal to the aperture of the flow guide through hole and larger than or equal to the aperture of the drainage through hole.

The utility model has the advantages that: the utility model discloses a coal gas drainer, normal and the storage water tank water level of coal gas atmospheric pressure is normal when, the water drum lower extreme of gas piping drainer fills water, and water is separated coal gas and atmosphere, and along with the rising of water level, unnecessary water volume passes through the outlet and discharges. When the gas pressure is overlarge, the sealing plate seals the water drainage through hole, thereby playing a role in preventing gas leakage. In addition, set up limit switch at the floater highest position of preventing leaking coal gas drainer device in this application, in case the coal gas drainer prevents that the leakage part starts, can trigger proximity switch, the alarm is reported to the police, has played the early warning function, reminds artifical drainage and opens the drainer floater and discharge water, prevents to cause a large amount of ponding of gas piping because the drainer blocks up, and then causes the gas flow to supply absolutely, and then influences production, causes the pipe bracket to subside even.

Drawings

FIG. 1 is a schematic structural view of a gas drainer in the present embodiment;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

In the figure, 1 is a gas connecting pipe, 2 is a water storage mechanism, 3 is a water replenishing pipe, 4 is a gate valve, 5 is a sewage draining outlet, 6 is a limiting plate, 7 is a guide plate, 8 is a support body, 9 is a sealing plate, 10 is a float bowl, 11 is a proximity switch, and 12 is a gas recovery pipeline.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Fig. 1 is a schematic structural view of a gas drainer in the present embodiment.

As shown in fig. 1, the gas drainer in this embodiment includes: a gas connecting pipe 1, a water storage mechanism 2, a water replenishing pipe 3 and a drainage mechanism.

The upper inlet of the gas connecting pipe 1 is used for connecting a gas recovery pipeline 12. Wherein the inlet of the gas recovery pipeline 12 is used for connecting a gas cooling system, and the outlet is used for connecting a gas storage system. The gas connecting pipe 1 is provided with a gate valve 4.

The water storage mechanism 2 is a water storage tank body. The upper end of the water storage tank body is connected and communicated with the lower outlet of the gas connecting pipe 1. The lower side of the water storage tank is provided with a water outlet. The lateral part of water storage mechanism 2 is provided with drain 5, and drain 5 is used for passing through sewage pipes access blowdown system, is provided with the valve on the sewage pipes. The water storage means 2 has an exhaust port on the upper side. An exhaust valve is arranged on the exhaust port.

The inlet end of the water replenishing pipe 3 is used for connecting a water source, and the outlet end of the water replenishing pipe 3 is connected and communicated with the water storage mechanism 2. The water replenishing pipe 3 is provided with a valve. When the water level in the water storage tank is lower than the water outlet, the valve on the water replenishing pipe 3 needs to be opened to replenish water in the water storage tank in time, so that the water level in the water storage tank is higher than the water outlet, and the condition that the coal gas flows into the atmosphere through the water outlet, the water discharging barrel and the water outlet in sequence to leak is prevented.

Fig. 2 is a partially enlarged view of a portion a in fig. 1.

As shown in fig. 1 and 2, the drain mechanism includes a drain cylinder, a leakage preventing portion, and a drain opening.

The upper end of the drainage tube is provided with a tube through hole, and the lower end of the drainage tube is connected and communicated with the water outlet of the water storage mechanism 2.

The leakage-proof part comprises a limiting plate 6, a flow guide plate 7, a supporting body 8, a closing plate 9, a buoy 10, a proximity switch 11 and an alarm.

The guide plate 7 is fixed on the inner wall of the drainage tube, and the guide plate 7 comprises a plate body and a guide ring. The plate body is provided with a central through hole, and the annular hole of the flow guide ring and the central through hole are coaxially arranged and have the same diameter, so that the annular hole of the flow guide ring and the central through hole form the flow guide through hole together.

The limiting plate 6 is fixed on the inner wall of the drainage tube and is positioned on the upper side of the guide plate 7. The limiting plate 6 has a water discharge through hole in the center.

The support body 8 is a floating ball with a diameter larger than the through hole of the cylinder. The floating ball is placed on the through hole of the cylinder.

The outer diameter of buoy 10 is greater than the diameter of the through bore of the cylinder. The upper end of the floating cylinder 10 extends out of the cylinder through hole and is fixedly connected with the supporting body 8, and the lower end of the floating cylinder 10 is fixedly connected with the sealing plate 9.

The closing plate 9 is positioned right below the drainage through hole and right above the flow guide through hole and used for closing the drainage through hole. The diameter of the closing plate 9 is larger than or equal to the aperture of the flow guide through hole and larger than or equal to the aperture of the drainage through hole. The weight of the closure plate 9 is greater than the buoyancy to which it is subjected in the body of water.

The water outlet is arranged on the water drainage cylinder and is positioned above the limit plate 6.

The proximity switch 11 is fixedly arranged relative to the drainage tube and is positioned above the floating ball and used for sensing the floating ball. When the floating ball rises to the sensing area of the proximity switch 11, the proximity switch 11 is triggered. In this embodiment, the proximity switch 11 is triggered just when the closing plate 9 closes the drainage through hole of the restriction plate 6.

The alarm controller is in communication with the proximity switch 11. When the proximity switch 11 is triggered, the alarm gives an alarm.

The utility model discloses a coal gas drain pipe prevent leaking the principle and do: when the water is drained normally, relatively small water flow enters the drainage cylinder from the water storage tank, passes through the guide plate 7, slowly overflows upwards from the outer side of the closing plate 9, passes through the drainage through hole and is discharged from the drainage outlet.

When the gas pressure in the gas recovery pipeline 12 is too high, the gas pressure in the gas recovery pipeline 12 presses the water flow in the water storage tank, so that the water of the water drainage cylinder is flushed to the closing plate 9, and the closing plate 9 rises under the action of the huge impact force of the large water flow until the closing plate 9 closes the flow guide through hole. The water outlet is tightly sealed, thereby preventing gas leakage. At the moment, the proximity switch 11 is triggered, the alarm gives an alarm to remind related personnel of carrying out pressure relief and other treatments.

When the coal gas cooler is flushed and the rotating speed of the coal gas conveying fan is high, a large amount of water flow can enter the coal gas drainer instantly and quickly and then flows to the sealing plate 9 through the flow guide through holes, and the sealing plate 9 rises under the action of the huge impact force of the large water flow until the sealing plate 9 seals the flow guide through holes. At the moment, the proximity switch 11 is triggered, the alarm gives an alarm to remind related personnel to treat, and a large amount of water flow is prevented from accumulating in the gas recovery pipeline 12. Guarantee in time to report to the police after the coal gas drainer is punctured, prevent to cause the long-time a large amount of ponding of gas piping because the drainer blocks up, prevent that the pipeline from blockking up and causing the gas flow to supply absolutely, and then influence production, cause the pipe bracket to subside even.

To sum up, the utility model discloses a concrete application example is right the utility model discloses the protection scope does not constitute the restriction, adopts the technical scheme of equivalent replacement all to fall within the utility model discloses within the protection scope.

Claims

1. The utility model provides a coal gas drainer, its characterized in that, includes water storage mechanism and drainage mechanism, water storage mechanism's import is used for inserting the coal gas recovery pipeline, drainage mechanism includes the drain cylinder, prevents leaking portion and outlet, the drain cylinder upper end be formed with a section of thick bamboo through-hole, lower extreme and water storage mechanism connects and communicates, prevent leaking the portion including limiting plate, guide plate, supporter, closing plate, flotation pontoon, the guide plate is fixed on the inner wall of drain cylinder and has the water conservancy diversion through-hole, the limiting plate is fixed on the inner wall of drain cylinder and be located the upside of guide plate has the water drainage through-hole, the supporter is arranged in on the up end of drain cylinder, the upper end of flotation pontoon stretch out the section of thick bamboo through-hole and with supporter fixed connection, lower extreme and closing plate fixed connection, the closing plate be located between the water drainage through-hole with be used for sealing the water drainage through-hole, the outlet sets up on the drain cylinder and be located the top of limiting plate.

2. The gas drainer as claimed in claim 1, further comprising a water replenishing pipe, wherein an inlet end of the water replenishing pipe is used for connecting a water source, and an outlet end of the water replenishing pipe is connected and communicated with the water storage mechanism.

3. The gas drainer according to claim 1, wherein the leakage preventing portion further comprises an alarm and a proximity switch fixedly arranged for sensing the support block, and a controller of the alarm is electrically connected to the proximity switch.

4. The gas drainer as claimed in claim 1, further comprising a gas connecting pipe, wherein the upper end of the gas connecting pipe is used for connecting a gas recovery pipeline, and the lower end of the gas connecting pipe is connected and communicated with the water storage mechanism.

5. The gas drainer according to claim 1, wherein a gate valve is provided on the gas connecting pipe.

6. The gas drainer as claimed in claim 1, wherein a drain outlet is provided at a side of the water storage mechanism, the drain outlet is adapted to be connected to a drain system via a drain pipe, and the drain pipe is provided with a valve.

7. The gas drainer as claimed in claim 1, wherein the deflector comprises a plate body and a deflector ring, the plate body has a central through hole, and the annular hole of the deflector ring is coaxially arranged with the central through hole, such that the annular hole of the deflector ring and the central through hole together form the deflector through hole.

8. The gas drainer according to claim 1, wherein the diameter of the closing plate is greater than or equal to the aperture of the flow guiding through hole and greater than or equal to the aperture of the drainage through hole.