CN217603417U - Water seal valve equipment for realizing chimney sealing - Google Patents
Water seal valve equipment for realizing chimney sealing Download PDFInfo
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- CN217603417U CN217603417U CN202221290065.0U CN202221290065U CN217603417U CN 217603417 U CN217603417 U CN 217603417U CN 202221290065 U CN202221290065 U CN 202221290065U CN 217603417 U CN217603417 U CN 217603417U
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- chimney
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- flue gas
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Abstract
The utility model relates to a water seal valve device for realizing chimney sealing, which comprises an inner water seal device positioned in a chimney and an outer water seal device positioned outside the chimney, wherein the inner water seal device comprises a cylinder body which extends along the height direction of the chimney and has an open top, one side of the cylinder body is communicated with a flue gas inlet pipeline, the upper part of the other side is provided with an overflow port, and the lower part is provided with a water inlet/outlet port; a half top cover is covered on one side of the top of the cylinder body close to the flue gas inlet pipeline in a sealing manner, and an upper partition plate fixed at the bottom of the half top cover divides the upper space in the cylinder body into two parts along the direction of the flue gas inlet pipeline; the lower partition plate fixed at the bottom of the cylinder is positioned between the flue gas inlet pipeline and the upper partition plate and is partially overlapped with the upper partition plate in the height direction of the cylinder; the outer water seal device is of a jacketed pipe structure consisting of an inner cylinder and an outer cylinder which are communicated with each other, and the overflow port is connected with the inner cylinder through a connecting pipeline; the liquid level of the inner cylinder is always kept at a set height. The device has simple structure, simple and convenient operation and strong practical popularization value.
Description
Technical Field
The utility model relates to a fields such as chemical industry petrochemical industry medicine, concretely relates to realize sealed water seal valve equipment of chimney, this water seal valve is that one kind is applied to big pipeline flue gas and cuts off equipment completely in the chimney.
Background
With the strict implementation of national environmental protection regulations, a flue gas desulfurization system is generally required to be added behind a waste heat boiler in a catalytic cracking device in the current petrochemical industry. Considering that the device can still normally operate during the troubleshooting of the flue gas desulfurization system, most of refineries can keep a flue gas pipeline from the outlet of the remaining boiler to the chimney, and a gate valve or a butterfly valve is arranged on the flue gas pipeline from the outlet of the remaining boiler to the chimney and is used as a bypass of the flue gas desulfurization system, and the valve is opened to discharge flue gas to the chimney only during the startup of catalytic cracking or the troubleshooting of the flue gas desulfurization system. In the actual operation process, small amount of flue gas leaks to a chimney through the valve due to the fact that the size of a flue gas pipeline is large and the sealing performance of the valve is poor, the flue gas is provided with an on-line flue gas monitoring system by national environmental protection departments at the tops of the chimneys, and the flue gas emission index is unqualified due to the leakage of a flue gas desulfurization system bypass, so that certain environmental protection pressure is caused for a refinery.
The common treatment method is to add a water seal tank on a bypass flue gas pipeline of a flue gas desulfurization system to ensure complete cut-off. But the pipelines from the outlet of the waste heat boiler of many catalytic cracking devices to the chimney are very close. After the residual heat boiler outlet is added to the three-way joint of the flue gas desulfurization system, the distance between the residual heat boiler outlet and the chimney is more limited. If a conventional water seal device is added, the trend of a flue gas pipeline needs to be greatly improved, the drift diameter of the flue gas pipeline of a general catalytic cracking device is large (for example, the flue gas pipe diameter of an outlet of a residue boiler of the catalytic cracking device is 3000 mm) and the improvement difficulty and investment are further increased. In 2015, application No. 201510470349.6 "invention patent of water seal valve equipment arranged in chimney and use method thereof" proposes the idea of arranging a water seal tank in the chimney and a novel water seal structure. The novel water seal solves the problems, but has a complex structure and large investment and reconstruction engineering amount.
In view of the complexity of present water seal valve structure, the utility model discloses people are based on engaging in the abundant practical experience and the professional knowledge of this type of product design and manufacture many years to the application of cooperation theory, actively add research innovation, invent the water seal valve of a novel structure, make it have the effect that completely seals the cutting off concurrently, and have equipment structure simple, reform transform the characteristics that the engineering volume is minimum, the investment is the province most.
Disclosure of Invention
The utility model aims at providing a realize the sealed water seal valve equipment design of chimney and application method thereof, the utility model discloses not only the space of make full use of chimney bottom has still guaranteed good sealed effect.
The purpose of the utility model and the technical problem to be solved are realized by adopting the following technical scheme. According to the utility model, the water seal valve device for realizing chimney sealing comprises an inner water seal device positioned in a chimney and an outer water seal device positioned outside the chimney, wherein the inner water seal device comprises a cylinder body which extends along the height direction of the chimney and has an open top, one side of the cylinder body is communicated with a flue gas inlet pipeline, the upper part of the other side of the cylinder body is provided with an overflow port, and the lower part of the cylinder body is provided with a water inlet/outlet port; a half top cover is covered on one side of the top of the cylinder body close to the flue gas inlet pipeline in a sealing manner, and an upper partition plate fixed at the bottom of the half top cover divides the upper space in the cylinder body into two parts along the direction of the flue gas inlet pipeline; the lower partition plate fixed at the bottom of the cylinder is positioned between the flue gas inlet pipeline and the upper partition plate and is partially overlapped with the upper partition plate in the height direction of the cylinder; the outer water seal equipment is of a jacketed pipe structure consisting of an inner cylinder and an outer cylinder which are communicated with each other, and the overflow port is connected with the inner cylinder through a connecting pipeline; the liquid level of the inner barrel is always kept at a set height.
The purpose of the utility model and the technical problem to be solved can be further realized by adopting the following technical measures.
According to the water seal valve device for realizing chimney sealing, the water inlet/outlet is connected with the device outside the chimney through the connecting pipeline so as to achieve the purpose of water drainage or water injection.
In the water seal valve device for realizing chimney sealing, the inner cylinder and the outer cylinder are coaxially arranged, and the lower end of the inner cylinder is open.
According to the water seal valve equipment for realizing chimney sealing, the outer cylinder and the inner cylinder are fixedly connected through the flange plate.
According to the water seal valve device for realizing chimney sealing, the wall body of the outer barrel is sequentially provided with the water seal water outlet, the water seal water inlet and the water outlet from top to bottom, wherein the water seal water outlet is always kept open and water flows out.
According to the water seal valve device for realizing chimney sealing, the upper partition plate is fixed at the bottom of the half top cover far away from the flue gas inlet pipeline side.
According to the water seal valve device for realizing chimney sealing, the height of the overflow port is smaller than the extension height of the lower partition plate.
According to the water seal valve equipment for realizing chimney sealing, the bottom plate is further fixed on one side, close to the flue gas inlet pipeline, of the bottom of the cylinder, and the lower partition plate is fixed on one side of the bottom plate and is vertically connected with the bottom plate.
Compared with the prior art, the utility model obvious advantage and beneficial effect have. Borrow by above-mentioned technical scheme, the utility model discloses can reach considerable technological advancement and practicality to have the industrial wide use value, it has following advantage at least: (1) the main body equipment of the device is a vertical tank body, two partition plates are arranged in the tank body, and necessary openings and accessories such as an overflow port, a water seal outlet, a water seal water inlet, a water drain port and the like are arranged. (2) The structure size can be adjusted according to the diameter and elevation of a flue gas pipeline by arranging the structure size in the chimney, the problem that a water seal tank cannot be arranged due to the shortage of the position outside the chimney can be solved, and the aim of not reforming a flue gas large pipeline outside the chimney can be fulfilled. (3) The water sealing tank is operated outside the chimney for water injection and drainage, and the operation is simple.
Drawings
Fig. 1 is the structure schematic diagram of the water seal valve device of the present invention.
[ description of main element symbols ]
1: ground surface
2: chimney
3: internal water seal equipment
31: flue gas inlet
32: outer cylinder
33: half top cover
34: upper partition board
35: overflow port
36: water inlet/outlet
37: lower partition plate
38: bottom plate
4: external water seal equipment
41: inner cylinder
42: water seal water outlet
43: outer cylinder
44: water seal water inlet
45: water outlet
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be given to the specific embodiments, structures, features and effects of the water seal valve device for realizing the chimney seal according to the present invention with reference to the accompanying drawings and preferred embodiments.
Please refer to fig. 1, which is a schematic structural diagram of the water seal valve apparatus for realizing chimney sealing according to the present invention, the water seal valve includes an inner water seal apparatus 3 and an outer water seal apparatus 4, wherein the inner water seal apparatus 3 is located in the chimney 2, the outer water seal apparatus 4 is located outside the chimney 2, wherein the inner water seal apparatus 3 includes a cylinder 32 extending along the height direction of the chimney 2 and having an open top, one side of the cylinder 32 is connected to the flue gas inlet pipe 31, and the other side is provided with an overflow port 35 and a water inlet/outlet port 36. The overflow port 35 and the water inlet/outlet port 36 are connected to a connecting pipe, and the connecting pipe extends to the outside of the chimney 2.
One side of the top of the cylinder 32 close to the flue gas inlet pipeline 31 is covered with a half top cover 33, and an upper partition plate 34 fixed at the bottom of the half top cover 33 divides the upper space in the cylinder 32 into two parts along the direction of the flue gas inlet pipeline 31. In this embodiment, the upper partition 34 is fixed to the end of the half-canopy 33 on the side remote from the flue gas inlet duct 31.
The bottom of the cylinder 32 is also fixed with a lower partition plate 37, the lower partition plate 37 is positioned between the flue gas inlet pipeline and the upper partition plate 34 and is used for dividing the lower space in the cylinder 22 into two parts along the direction of the flue gas inlet pipeline 33, and the sum of the extension lengths of the upper partition plate 34 and the lower partition plate 37 in the height direction of the cylinder 32 is greater than the height of the cylinder, so that the upper partition plate 34 and the lower partition plate 37 are partially overlapped in the height direction of the cylinder 32. The height of the lower baffle 37 is not lower than the height of the overflow port 35 on the cylinder 32.
The half top cover 33, the upper partition plate 34 and the lower partition plate 37 divide the cavity in the cylinder of the inner water sealing device 3 into different functional areas, so that the air is separated by water.
In the embodiment of the present invention, a bottom plate 38 is further fixed at one side of the bottom of the cylinder 32 close to the flue gas inlet pipe 33, and the lower partition plate 37 is fixed at one side of the bottom plate 38 and is vertically connected to the bottom plate 38.
The outer water sealing device 4 is a jacketed pipe structure composed of an inner cylinder 41 and an outer cylinder 43. The outer cylinder 43 and the inner cylinder 41 are coaxially arranged, the lower end of the inner cylinder 41 is opened and communicated with the outer cylinder 43, the overflow port 35 of the inner water sealing device 3 is connected with the inner cylinder 41 through a connecting pipe, and therefore water in the inner water sealing device 3 can be conveyed into the inner cylinder 41. In this embodiment, the bottom of the outer cylinder 43 is fixed on the ground 1, the inner cylinder 41 is fixed in the outer cylinder 43 through the connecting piece 45 on the top of the outer cylinder 43, a space for water circulation is formed between the bottom of the inner cylinder 41 and the outer cylinder 43, an annular space for storing water is also formed between the outer wall of the inner cylinder 41 and the inner wall of the outer cylinder 43, and the water delivered into the inner cylinder 41 from the overflow port 35 enters the outer cylinder 43 through the bottom of the inner cylinder 41 and gradually fills the space between the inner cylinder 41 and the outer cylinder 43. Preferably, the connecting member 45 is a flange for connecting and fixing the top of the outer cylinder 43 and the outer wall of the inner cylinder 41, but is not limited thereto.
The outer cylinder 43 is provided with a water seal outlet 42, a water seal inlet 44 and a water outlet 45 in sequence from top to bottom. The overflow port 35 is connected with the inner cylinder 41 through a connecting pipeline, water always exists in the outer water seal device 4, and water always flows out of the water seal water outlet 42 on the outer cylinder 43, so that smoke can not be discharged to the inner cylinder 41 through the overflow port 35 all the time, and the smoke at the overflow port 35 is blocked. Specifically, when the inner water seal equipment needs to be opened and the flue gas enters the chimney, water in the inner water seal equipment needs to be emptied, the flue gas can be discharged to the atmosphere through a pipeline connected with the overflow port 35 at the moment, and the arrangement of the outer water seal equipment can avoid the situation. Because have certain liquid level height in outer water seal equipment 4, overflow mouth 35 department flue gas pressure need be greater than outer water seal liquid column static pressure in the chimney, just can release to the atmosphere through the pipeline of overflow mouth 35 department connection, therefore outer water seal equipment can prevent effectively that the flue gas from releasing to the atmosphere through overflow mouth 35, avoids operating personnel to be poisoned, the risk of scald.
The operation method of the water seal valve of the utility model is as follows:
when the flue gas of the chimney 2 needs to be cut off: opening a water injection valve at the water inlet/outlet 36 to enable water to enter the inner water seal equipment 3 through the water inlet/outlet 36, wherein after the water level in the inner water seal equipment 3 is higher than the overflow port 35, the water can flow into the outer water seal equipment 4 through a connecting pipe, and at the moment, the water seal outlet 42 in the outer water seal equipment 4 is smooth in pipeline, the valve of a water seal water inlet 44 is closed, and the water outlet 45 is closed; finally, the water flows out through the water seal discharge port 42. Then, the water filling valve of the water inlet/outlet 36 is closed until a water trace continuously flows out from the water seal outlet 42.
When the flue gas of the chimney 2 needs to be opened: the water filling valve at the water inlet/outlet 36 is closed, and the water discharge valve is opened, so that the water in the inner water sealing device 3 is discharged through the water inlet/outlet 36. And simultaneously, opening a valve of a water seal water inlet 44 in the outer water seal device 4, and adjusting the opening degree of the valve of the water seal water inlet 44 according to the drainage condition of the water seal drainage port 42, so that water in the water seal drainage port 42 flows out in a micro-quantity and continuous manner.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed with the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention, but all the modifications, changes and modifications of the above embodiments by the technical spirit of the present invention are within the scope of the present invention.
Claims (8)
1. A water seal valve device for realizing chimney sealing is characterized by comprising an inner water seal device positioned in a chimney and an outer water seal device positioned outside the chimney, wherein the inner water seal device comprises a cylinder body which extends along the height direction of the chimney and has an open top, one side of the cylinder body is communicated with a flue gas inlet pipeline, the upper part of the other side of the cylinder body is provided with an overflow port, and the lower part of the cylinder body is provided with a water inlet/outlet port; a half top cover is sealed and covered on one side of the top of the cylinder body close to the flue gas inlet pipeline, and an upper partition plate fixed at the bottom of the half top cover divides the upper space in the cylinder body into two parts along the direction of the flue gas inlet pipeline; the lower partition plate fixed at the bottom of the cylinder is positioned between the flue gas inlet pipeline and the upper partition plate and is partially overlapped with the upper partition plate in the height direction of the cylinder; the outer water seal equipment is of a jacketed pipe structure consisting of an inner cylinder and an outer cylinder which are communicated with each other, and the overflow port is connected with the inner cylinder through a connecting pipeline; the inner cylinder is communicated with the outer cylinder, the liquid level of the outer cylinder is always kept at a set height, and the set height is higher than the position where the inner cylinder is communicated with the outer cylinder.
2. The water seal valve equipment for realizing chimney sealing according to claim 1, wherein the water inlet/outlet is connected with equipment outside the chimney through a connecting pipeline so as to realize the purpose of water drainage or water injection.
3. The water seal valve apparatus for effecting a chimney seal according to claim 2, wherein said inner and outer cylinders are coaxially disposed with the inner cylinder lower end open.
4. The water seal valve device for realizing chimney seal according to claim 3, characterized in that the outer cylinder and the inner cylinder are fixedly connected through a flange plate.
5. The water seal valve device for realizing chimney seal according to claim 3, characterized in that the wall of the outer cylinder is provided with a water seal outlet, a water seal inlet and a water outlet from top to bottom in sequence, wherein the water seal outlet is always open and water flows out.
6. The water seal valve apparatus for realizing chimney seal according to claim 1, wherein the upper partition is fixed on the bottom of the side of the half top cover far from the flue gas inlet pipeline.
7. The water seal valve apparatus for effecting a chimney seal according to claim 1 wherein said overflow port is at a height less than the extended height of the lower baffle.
8. The water seal valve device for realizing chimney seal according to claim 1, characterized in that a bottom plate is fixed on one side of the bottom of the cylinder body close to the flue gas inlet pipeline, and the lower partition plate is fixed on one side of the bottom plate and is vertically connected with the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221290065.0U CN217603417U (en) | 2022-05-26 | 2022-05-26 | Water seal valve equipment for realizing chimney sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221290065.0U CN217603417U (en) | 2022-05-26 | 2022-05-26 | Water seal valve equipment for realizing chimney sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217603417U true CN217603417U (en) | 2022-10-18 |
Family
ID=83588852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221290065.0U Active CN217603417U (en) | 2022-05-26 | 2022-05-26 | Water seal valve equipment for realizing chimney sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217603417U (en) |
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2022
- 2022-05-26 CN CN202221290065.0U patent/CN217603417U/en active Active
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