CN217928304U - A intercommunication device for nitrogen press air feed - Google Patents
A intercommunication device for nitrogen press air feed Download PDFInfo
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- CN217928304U CN217928304U CN202222002002.7U CN202222002002U CN217928304U CN 217928304 U CN217928304 U CN 217928304U CN 202222002002 U CN202222002002 U CN 202222002002U CN 217928304 U CN217928304 U CN 217928304U
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Abstract
The utility model relates to a pipeline intercommunication technical field specifically is a intercommunication device for nitrogen press air feed, including the valve, valve both ends intercommunication valve pipe, valve pipe both ends are connected with the connecting piece, the terminal fixedly connected with closed tube of connecting piece, wherein one side closed tube upper end intercommunication manometer, beneficial effect is: the utility model provides a intercommunication device can feed through two sets of play cold box pipelines, and is provided with electric valve in the middle of the intercommunication device, and the valve is in full open state in normal use, can make nitrogen gas intercommunication both sides play cold pipeline, avoids influencing holistic use after one of them set of system parking, can satisfy the total short time of follow-up work and need the demand of a large amount of gas use, avoids appearing the nitrogen press and shuts down, guarantees system normal operating.
Description
Technical Field
The utility model relates to a pipeline intercommunication field specifically is a intercommunication device for nitrogen press air feed.
Background
In the prior art, an AB 2 set 25000m3/h (oxygen) air separation device is built in Niqing coal chemical industry Limited liability company (Niqing company for short) in Shannan jin control, and the device is a 18/30/5 coal chemical industry project matched project of the Niqing company, and the model is as follows: KDONAr25000/33000/700, mainly compressing air sucked from atmosphere to 0.52MPa, sending to purifier, pressurizing to 1.235MPa by supercharger, extracting to reduce pressure, using as instrument gas and device air, pressurizing to 2.7MPa by supercharger, sending to booster turbine expander, and sending to cold box. The rest part is continuously pressurized to 7.0MPa by the three sections of the pressurizers and then sent to the cooling box. The air entering the cooling box is separated through the operations of a refrigeration system, a heat exchange system, a rectification system and the like, and 30kpa of nitrogen gas coming out of the cooling box is pressurized to 0.6MPA by a nitrogen compressor and then is sent to the system for use. The nitrogen gas that AB air separation system came out from the cold box respectively supplies a nitrogen press to use, the air separation A system supplies air for 1# nitrogen press, the air separation B system supplies air for 2# nitrogen press, a nitrogen press operation air feed has satisfied the back system and has used, AB two sets of system operation, no matter start 1# or 2# nitrogen press, if the jump appears in one set of system for nitrogen press air feed, all need the scene to stop the operation nitrogen press, put into service the nitrogen press that another set of system was taken again, the risk of stopping the automobile has undoubtedly increased, and often the back system use low pressure nitrogen volume is big or the pressure fluctuation in the air supply system tower all can cause the nitrogen press air feed unstable, can not satisfy back system stable use, consequently consider to increase the intercommunication device of AB two sets of system air feed simultaneously.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a intercommunication device for nitrogen press air feed to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above purpose, the utility model provides a following technical scheme: a intercommunication device for nitrogen press air feed includes
The valve, the valve both ends intercommunication valve pipe, valve pipe both ends are connected with the connecting piece, the terminal fixedly connected with of connecting piece closes the pipe, and wherein one side closes the pipe upper end intercommunication manometer.
Preferably, the valve is electric valve, the valve upper end is provided with the valve rod, and the terminal fixed link of valve rod has electric hand wheel, electric hand wheel passes through control motor and drives the rotation.
Preferably, the valve pipe end outside is provided with flange, the flange outside has the connecting piece through bolt-up connection, the connecting piece both ends are provided with the flange that corresponds with flange, the connecting piece end is through flange fixed connection closed pipe, the pipe end of UNICOM is provided with the flange that corresponds with flange.
Preferably, the connecting piece includes middle regulating pipe, the regulating pipe is the bellows, it is connected with the steel ring to inlay in the bellows, bellows both ends fixed connection flange, the flange inner circle protrusion is provided with sealed inserted block, in sealed inserted block grafting valve pipe and the closed tube tip, the valve pipe is seted up the sealed slot that corresponds with sealed inserted block with closed tube tip inboard, closed tube intercommunication to going out the cold box pipeline, intercommunication three-way valve corresponds the intercommunication with closed tube in the middle of going out the cold box pipeline.
Preferably, the flange structure of valve pipe, connecting piece and UNICOM's pipe tip passes through fastening connection through adjusting bolt, the adjusting bolt outside threaded connection between the locating flange of both ends has set nut on the connecting piece, the set nut laminating is on the locating flange terminal surface.
Preferably, the pressure gauge is connected with an interlocking mechanism in a control mode, and two ends of the interlocking mechanism are connected to a cutoff valve arranged on a cold box outlet pipeline.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model provides a intercommunication device can feed through two sets of play cold box pipelines, and is provided with electric valve in the middle of the intercommunication device, and the valve is in full open state in normal use, can make nitrogen gas intercommunication both sides play cold pipeline, avoids influencing holistic use after one of them set of system parking, can satisfy the total short time of follow-up work and need the demand of a large amount of gas use, avoids appearing the nitrogen press and shuts down, guarantees system normal operating.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the valve tube of the present invention;
fig. 3 is an enlarged schematic view of the structure at a in fig. 2.
In the figure: the device comprises a valve 1, an electric hand wheel 2, a valve pipe 3, a connecting piece 4, a communicating pipe 5, a pressure gauge 6, an adjusting pipe 7, a sealing insert block 8, a connecting flange 9, a sealing slot 10, an adjusting bolt 11 and a positioning nut 12.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are illustrative of some, but not all, embodiments of the invention and are not to be construed as limiting the scope of the invention, as those skilled in the art will recognize and appreciate that many other embodiments can be made without inventive faculty.
Example one
Referring to fig. 1-3, the present invention provides a technical solution: a intercommunication device for nitrogen press air feed includes
The valve 1, 1 both ends intercommunication valve pipe 3 of valve, and the valve pipe 3 both ends are connected with connecting piece 4, and 4 terminal fixedly connected with communicating pipe 5 of connecting piece, wherein 5 upper ends intercommunication manometer 6 on the communicating pipe of one side.
Example two
Valve 1 is electric valve, 1 upper end of valve is provided with the valve rod, the terminal fixed link of valve rod has electric hand wheel 2, electric hand wheel 2 drives the rotation through the control motor, can carry out long-range opening or closing as required through electronic valve 1, increase the operation convenience, can communicate the closed tube 5 at both ends through valve 1, and communicate out the cold pipe through closed tube 5, make two sets of air separation plant intercommunications, need spend the longer time to open another set of device after avoiding appearing one set of air separation plant parking, influence the result of use.
EXAMPLE III
A connecting flange 9 is arranged on the outer side of the tail end of the valve pipe 3, a connecting piece 4 is fixedly connected to the outer side of the connecting flange 9 through a bolt, positioning flanges corresponding to the connecting flanges 9 are arranged at two ends of the connecting piece 4, the tail end of the connecting piece 4 is fixedly connected with a communicating pipe 5 through the positioning flanges, and the end part of the communicating pipe 5 is provided with the connecting flange 9 corresponding to the positioning flanges;
connecting piece 4 is including middle control tube 7, control tube 7 is the bellows, it is connected with the steel ring to inlay in the bellows, bellows both ends fixed connection flange, the flange inner circle protrusion is provided with sealed inserted block 8, in sealed inserted block 8 grafting valve pipe 3 and the 5 tip of communicating pipe, valve pipe 3 and the 5 tip inboards of communicating pipe offer with the sealed slot 10 that sealed inserted block 8 corresponds, communicating pipe 5 communicates to a cold box pipeline, communicate three-way valve and communicating pipe 5 and correspond the intercommunication in the middle of going out the cold box pipeline, can effectively increase the compactness of being connected between valve pipe 3 and the communicating pipe 5 through the connecting piece, improve sealed effect, avoid appearing leaking, and can adjust the length of connecting piece, in order to increase installation adaptability, the result of use is improved, and make things convenient for valve 1 subsequent maintenance more, increase the convenience in use.
Example four
EXAMPLE five
The pressure gauge 6 is connected with an interlocking mechanism in a control mode, two ends of the interlocking mechanism are connected to the intercepting valve arranged on the cold box outlet pipeline, and the interlocking mechanism can be used for reducing the nitrogen flow at the intercepting valve through the interlocking mechanism or closing the valve to reduce the pressure when the pressure gauge 6 detects that the pressure is too large, so that the use safety is improved, and the use effect is improved.
During the in-service use, can communicate the closed tube 5 at both ends through valve 1, and communicate out the cold pipe through closed tube 5, make two sets of air separation plant intercommunications, need spend longer time and open another set of device after avoiding appearing one set of air separation plant parking, influence the result of use, can effectively increase the connection compactness between valve pipe 3 and the closed tube 5 through the connecting piece, improve sealed effect, avoid appearing leaking, and can adjust the length of connecting piece, in order to increase installation adaptability, improve the result of use, and make things convenient for valve 1 subsequent maintenance more, it connects valve pipe 3 through adjusting bolt 11 to increase the convenience of use, connecting piece 4 and closed tube 5, the connected mode is simple and reliable, and be convenient for carry out length adjustment, set nut 12 then can be after adjusting with the length positioning of connecting piece 4, improve stably, increase the result of use, can reduce the nitrogen flow that the valve department will damps through interlocking mechanism through manometer 6 detection pressure is too big, or close the valve in order to reduce pressure, increase the safety of use, increase the result of use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a intercommunication device for nitrogen press air feed which characterized in that: comprises that
Valve (1), valve (1) both ends intercommunication valve pipe (3), valve pipe (3) both ends are connected with connecting piece (4), connecting piece (4) terminal fixedly connected with closed tube (5), wherein one side closed tube (5) upper end intercommunication manometer (6).
2. A communication device for nitrogen compressor air supply according to claim 1, characterized in that: valve (1) is electric valve, valve (1) upper end is provided with the valve rod, and the terminal fixed link of valve rod has electric hand wheel (2), electric hand wheel (2) drive the rotation through control motor.
3. A communication device for nitrogen compressor air supply according to claim 1, characterized in that: valve pipe (3) end outside is provided with flange (9), flange (9) outside has connecting piece (4) through bolt-up connection, connecting piece (4) both ends are provided with the flange who corresponds with flange (9), connecting piece (4) are terminal to be through flange fixed connection closed tube (5), closed tube (5) tip is provided with flange (9) that correspond with flange.
4. A communication device for nitrogen compressor air supply according to claim 3, characterized in that: connecting piece (4) are including middle control tube (7), control tube (7) are the bellows, inlay in the bellows and be connected with the steel ring, bellows both ends fixed connection flange, the flange inner circle protrusion is provided with sealed inserted block (8), in sealed inserted block (8) grafting valve pipe (3) and communicating pipe (5) tip, valve pipe (3) and communicating pipe (5) tip inboard are seted up sealed slot (10) that correspond with sealed inserted block (8), communicating pipe (5) communicate to going out the cold box pipeline, communicate the tee bend valve in the middle of going out the cold box pipeline and correspond the intercommunication with communicating pipe (5).
5. A communication device for nitrogen compressor air supply according to claim 1, characterized in that: the flange structure of valve pipe (3), connecting piece (4) and closed pipe (5) tip passes through fastening connection through adjusting bolt (11), adjusting bolt (11) outside threaded connection between the both ends flange has set nut (12) on connecting piece (4), set nut (12) laminating is on the flange terminal surface.
6. A communication device for nitrogen compressor air supply according to claim 1, characterized in that: the pressure gauge (6) is connected with an interlocking mechanism in a control mode, and two ends of the interlocking mechanism are connected to a cutoff valve arranged on a cold box outlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222002002.7U CN217928304U (en) | 2022-07-28 | 2022-07-28 | A intercommunication device for nitrogen press air feed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222002002.7U CN217928304U (en) | 2022-07-28 | 2022-07-28 | A intercommunication device for nitrogen press air feed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217928304U true CN217928304U (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222002002.7U Active CN217928304U (en) | 2022-07-28 | 2022-07-28 | A intercommunication device for nitrogen press air feed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217928304U (en) |
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2022
- 2022-07-28 CN CN202222002002.7U patent/CN217928304U/en active Active
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