CN205014049U - Liquefied gas processing technology pipeline - Google Patents
Liquefied gas processing technology pipeline Download PDFInfo
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- CN205014049U CN205014049U CN201520617623.3U CN201520617623U CN205014049U CN 205014049 U CN205014049 U CN 205014049U CN 201520617623 U CN201520617623 U CN 201520617623U CN 205014049 U CN205014049 U CN 205014049U
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- valve
- pipeline
- liquefied gas
- air conduit
- processing technology
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Abstract
The utility model discloses a liquefied gas processing technology pipeline, including air conduit, liquefied gas pipeline, be connected with respectively on air conduit and the liquefied gas pipeline and be used for preventing that the nitrogen that leaks from sealing the blind plate device in the valve. The utility model adopts the above technical scheme, it is safe, high -efficient, can prevent effectively that the interior combustible gas who causes that leaks of valve on the process line from leaking easy operation, convenience.
Description
Technical field
The utility model relates to liquid gas processing technique field, particularly relates to one and effectively can prevent valves leakage
Liquid gas processing technology pipeline.
Background technique
Be illustrated in figure 1 the Placement of conventional pipeline in existing liquid gas course of working, comprise air conduit 1, liquefied gas pipeline 2, air conduit 1 is connected with reactor 3 by common-use tunnel 4 with liquefied gas pipeline 2, described air conduit 1 is connected with the first valve 5 and the second valve 6, the first blind plate 9 is provided with between first valve 5 and the second valve 6, liquefied gas pipeline 2 is connected with the 3rd valve 7 and the 4th valve 8, the second blind plate 10 is provided with between 3rd valve 7 and the 4th valve 8, common-use tunnel 4 is provided with heat exchanger 11, heat exchanger 11 pairs of liquid gas carry out preheating, heat up, then reactor 3 is entered, chemical reaction is carried out under the effect of catalyzer.
Material during work in air conduit 1 and liquefied gas pipeline 2 alternately enters reactor 3, material in air conduit 1 is air, and in liquefied gas pipeline 2, material is liquid gas, and air conduit 1 and the material in liquefied gas pipeline 2 can not batch mixings, for preventing batch mixing, usually adopt with the following method:
When material walked by liquefied gas pipeline 2, first close the first valve 5 and the second valve 6, and add the first blind plate 9 after the first valve 5, and then the second blind plate 10 of dismantling, and open the 3rd valve 7 and the 4th valve 8, as shown in Figure 1.
Although aforesaid way safely, reliably, shortcoming also clearly.First, chemical pipeline is very thick (diameter is about DN300, and corresponding clamping bolt is very large and many) generally, dismantles and installs additional blind plate and bother very much, waste time and energy; Secondly, dismantle or install additional in the process of blind plate and unavoidably have part combustible gas leakage, there is certain risk.
Summary of the invention
The technical problems to be solved in the utility model is for the deficiencies in the prior art, provides a kind of simple, convenient, and the liquid gas processing technology pipeline of the combustible gas leakage that can effectively prevent valves leakage from causing.
For solving the problems of the technologies described above, the utility model by the following technical solutions: a kind of liquid gas processing work
Skill pipeline, comprises air conduit, liquefied gas pipeline, and described air conduit and liquefied gas pipeline are connected to for preventing the nitrogen of valves leakage from sealing blind plate device.
Below further improvement of the utility model:
Described air conduit is connected with the first valve and the second valve, described nitrogen envelope blind plate device is arranged on the pipeline between the first valve and the second valve.
Further improvement:
Described liquefied gas pipeline is connected with the 3rd valve and the 4th valve, described nitrogen envelope blind plate device is arranged on the pipeline between the 3rd valve and the 4th valve.
Further improvement:
Described nitrogen envelope blind plate device comprises the second high-pressure nitrogen bottle, and the second high-pressure nitrogen bottle is connected with connecting pipeline, and connecting pipeline is provided with several valves.
Further improvement:
Described valve comprises the 6th valve be connected in turn on connecting pipeline, the 7th valve, the 8th valve, the 9th valve, the tenth valve, the 11 valve and the 5th valve.
The utility model adopts technique scheme, safely, efficiently, effectively can prevent the combustible gas leakage that the valves leakage on process pipe causes, simple, convenient.
Below in conjunction with drawings and Examples, technique scheme is described further:
accompanying drawing illustrates:
Accompanying drawing 1 is the connection diagram of pipeline in liquid gas course of working in the utility model background technique;
Accompanying drawing 2 is the structural representation of the utility model embodiment;
Accompanying drawing 3 is the structural representation of nitrogen envelope blind plate device.
In figure: 1-air conduit; 2-liquefied gas pipeline; 3-reactor; 4-common-use tunnel; 5-first valve; 6-second valve; 7-the 3rd valve; 8-the 4th valve; 9-first blind plate; 10-second blind plate; 11-heat exchanger; 12-second high-pressure nitrogen bottle; 13-first high-pressure nitrogen bottle; 14-the 5th valve; 15-the 6th valve; 16-the 7th valve; 17-the 8th valve; 18-the 9th valve; 19-the tenth valve; 20-the 11 valve; 21-connecting pipeline; 22-nitrogen envelope blind plate device.
Embodiment
Embodiment, as shown in Figure 2, a kind of liquid gas processing technology pipeline, comprise air conduit 1, liquefied gas pipeline 2, air conduit 1 is connected with reactor 3 by common-use tunnel 4 with liquefied gas pipeline 2, described air conduit 1 is connected with the first valve 5 and the second valve 6, liquefied gas pipeline 2 is connected with the 3rd valve 7 and the 4th valve 8, common-use tunnel 4 is provided with heat exchanger 11, on pipeline between described first valve 5 and the second valve 6, pipeline between described 3rd valve 7 and the 4th valve 8 is respectively equipped with for preventing the nitrogen of valves leakage from sealing blind plate device 22, nitrogen injection in the pipeline of blind plate device 22 in the pipeline between the first valve 5 and the second valve 6 and between the 3rd valve 7 and the 4th valve 8 is sealed by nitrogen, prevent valves leakage.
As shown in Figure 3, described nitrogen envelope blind plate device 22 comprises the second high-pressure nitrogen bottle 12 and the first high-pressure nitrogen bottle 13, second high-pressure nitrogen bottle 12 as subsequent use, aborning can be safer, reliable.
Described first high-pressure nitrogen bottle 13 is connected with the 6th valve 15, the 7th valve 16, the 8th valve 17, the 9th valve 18, the tenth valve the 19, the 11 valve 20 and the 5th valve 15 in turn by connecting pipeline 21.
In normal productive process, liquid gas is by liquefied gas pipeline 2, open the 3rd valve 7, 4th valve 8, enter common-use tunnel 4, heat up through heat exchanger 11, after reaching the temperature of needs, enter reactor 3, react under the effect of catalyzer, meanwhile, the first valve 5 and the second valve 6 Close All in air conduit 1, nitrogen in first high-pressure nitrogen bottle 13 is passed between the first valve 5 and the second valve 6, because the pressure in the first high-pressure nitrogen bottle 13 is very high, pressure a little more than the air in air conduit 1 is reduced to by the 7th valve 16 by artificial, even if the first valve 5 thus in air conduit 1 and the second valve 6 have a little interior leakage, also be that nitrogen leaks to valve both sides, air can not be crossed high pressure nitrogen section and enter reactor 3, prevent the danger of air and liquid gas at high temperature mixed explosion.
Otherwise, in reactor 3 catalyst regeneration process in, need first by the 3rd valve 7 in liquefied gas pipeline 2 and the 4th valve 8 Close All, and be charged high pressure nitrogen between the 3rd valve 7 and the 4th valve 8, then by two of air conduit 1 valve wide opens, air is made to enter reactor 3, like this, even if the 3rd valve 7 and the 4th valve 8 have a small amount of interior leakage, also be that high pressure nitrogen is to valve two side leakage, and liquid gas can not cross high pressure nitrogen section, enter reactor 3 and mix with air, thus ensure that the safe, efficient of production.
Air conduit 1 is in the used time, liquefied gas pipeline 2 is stopped using, then need closedown the 3rd valve 7, the 4th valve 8, open the 5th valve 14, the 6th valve 15, the 7th valve 16, the 9th valve the 18, the 11 valve 20 simultaneously, high pressure nitrogen is filled with the pipe interior (note: be filled with the pressure of nitrogen generally higher than the pressure 0.2MPa of liquid gas in pipeline 2 between the 3rd valve 7, the 4th valve 8
~0.5MPa), then the 6th valve 15, the 7th valve 16, the 9th valve 18, the tenth valve the 19, the 11 valve 20 is closed, and record the pressure of now the 5th valve 14 upward pressure table, if after crossing 2 ~ 5h, the pressure of this table is substantially constant or slightly reduce, the sealing that 3rd valve 7 and the 4th valve 8 be described is good, keeps this state, if after having crossed 1 ~ 2h, the pressure gauge reading at the 5th valve 14 place obviously diminishes, illustrate that the high pressure nitrogen between the 3rd valve 7 and the 4th valve 8 have leaked before the 3rd valve 7 or after the 4th valve 8, now just again must open the 6th valve 15, 7th valve 16, 9th valve the 18 and the 11 valve 20, 3rd valve 7 and the 4th valve 8 are in closed condition all the time, high pressure nitrogen is made to be filled with between the 3rd valve 7 and the 4th valve 8 endlessly, the nitrogen of this section is constantly leaked before the 3rd valve 7 or after the 4th valve 8, but the liquid gas before the 3rd valve 7 still cannot enter reactor 3 backward, thus ensure that the safety of regenerative process is carried out, certainly, since found that the 3rd valve 7 or the 4th valve 8 exist interior leakage problem, when device general overhaul, valve must be changed in time, in addition, before nitrogen enters into the 3rd valve 7 or after the 4th valve 8, be all safe be also harmless.
Above-mentioned testing process is also applicable to air conduit 1.
Described 7th valve 16 is reduction valve; Described 8th valve 17 is stop valve, for subsequent use during external pipe; Described tenth valve 19 is stop valve, uses during pipeline emptying; 5th valve 14 is stop valve, uses when changing pressure gauge.
Claims (5)
1. a liquid gas processing technology pipeline, comprises air conduit (1), liquefied gas pipeline (2), it is characterized in that: described air conduit (1) and liquefied gas pipeline (2) are connected to for preventing the nitrogen of valves leakage from sealing blind plate device (22).
2. a kind of liquid gas processing technology pipeline according to claim 1, it is characterized in that: described air conduit (1) is connected with the first valve (5) and the second valve (6), described nitrogen envelope blind plate device (22) is arranged on the pipeline between the first valve (5) and the second valve (6).
3. a kind of liquid gas processing technology pipeline according to claim 1, it is characterized in that: described liquefied gas pipeline (2) is connected with the 3rd valve (7) and the 4th valve (8), described nitrogen envelope blind plate device (22) is arranged on the pipeline between the 3rd valve (7) and the 4th valve (8).
4. a kind of liquid gas processing technology pipeline according to claim 1, it is characterized in that: described nitrogen envelope blind plate device (22) comprises the first high-pressure nitrogen bottle (13), first high-pressure nitrogen bottle (13) is connected with connecting pipeline (21), connecting pipeline (21) is provided with several valves.
5. a kind of liquid gas processing technology pipeline according to claim 4, is characterized in that: described valve comprises the 6th valve (15) be connected in turn on connecting pipeline (21), the 7th valve (16), the 8th valve (17), the 9th valve (18), the tenth valve (19), the 11 valve (20) and the 5th valve (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520617623.3U CN205014049U (en) | 2015-08-17 | 2015-08-17 | Liquefied gas processing technology pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520617623.3U CN205014049U (en) | 2015-08-17 | 2015-08-17 | Liquefied gas processing technology pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205014049U true CN205014049U (en) | 2016-02-03 |
Family
ID=55212651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520617623.3U Active CN205014049U (en) | 2015-08-17 | 2015-08-17 | Liquefied gas processing technology pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205014049U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207303A (en) * | 2018-11-21 | 2020-05-29 | 苏州工业园区可伦坡***集成科技有限公司 | Device for preventing nitrogen gas inner leakage |
-
2015
- 2015-08-17 CN CN201520617623.3U patent/CN205014049U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111207303A (en) * | 2018-11-21 | 2020-05-29 | 苏州工业园区可伦坡***集成科技有限公司 | Device for preventing nitrogen gas inner leakage |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190301 Address after: 261300 Chengtai Road, Binhai (Xiaying) Economic Development Zone, Changyi City, Weifang City, Shandong Province Patentee after: Shandong Chengtai New Materials Co., Ltd. Address before: 261313 Binhai (Xiaying) Economic Development Zone, Weifang City, Shandong Province Patentee before: Shandong Cheng Tai Chemical Co., Ltd. |
|
| TR01 | Transfer of patent right |