CN211258959U - Tail gas recovery compressor piston rod alarm structure that sinks - Google Patents
Tail gas recovery compressor piston rod alarm structure that sinks Download PDFInfo
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- CN211258959U CN211258959U CN201921852833.5U CN201921852833U CN211258959U CN 211258959 U CN211258959 U CN 211258959U CN 201921852833 U CN201921852833 U CN 201921852833U CN 211258959 U CN211258959 U CN 211258959U
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- sealing bin
- tail gas
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Abstract
The utility model discloses a piston rod sinking alarm structure of a tail gas recovery compressor, which comprises an installation body and a cylinder; a packing box is arranged on the mounting body, and a sealing ring arranged in the packing box is tightly sleeved on the piston rod; at least two stuffing boxes are arranged in the installation body, the stuffing boxes are arranged side by side, and an end cover is arranged at the end part of the installation body; a hydrogen sealing bin and a nitrogen sealing bin are arranged in the mounting body, the hydrogen sealing bin is arranged on one side close to the cylinder, and a sinking alarm instrument is mounted in the hydrogen sealing bin; the sinking alarm instrument is connected with the nitrogen storage device through a nitrogen pipeline, and a pressure gauge is arranged on the nitrogen pipeline. The utility model discloses a warning appearance sinks as the switch of nitrogen gas pipeline, when the piston rod sinks to contact when the warning appearance sinks, nitrogen gas release in the nitrogen gas pipeline, the atmospheric pressure of nitrogen gas pipeline reduces, judges through the manometer whether the piston rod sinks. Additionally, the utility model discloses prevent that hydrogen and compressed air from forming mixability explosive gas, guarantee the compressor safe and stable operation.
Description
Technical Field
The utility model belongs to a large-scale compressor safety arrangement, concretely relates to alarm structure that sinks of compressor piston rod is retrieved to tail gas.
Background
The polysilicon is extracted from metallurgical grade silicon with lower silicon purity, and the production process technology has certain difference because the main and auxiliary materials used by polysilicon production plants are different. However, the polysilicon production process usually includes steps of silicon synthesis, rectification, reduction, tail gas recovery, etc., and the utility model mainly aims at the technical scheme of tail gas recovery link design.
The compressor is retrieved to tail gas because of mechanical reason can inevitably appear in the polycrystalline silicon production process, lead to compressor vibration value big on the contrary, lead to piston rod displacement big on the contrary, unable safety and stability operation, clearance between the compressor piston rod cylinder, adopt soft sealed effect that can not play, adopt hard sealed can damage the piston rod for a long time, through a large amount of long-time research experiments, adopt graphite packing to seal, nevertheless pack sealed also have certain clearance to lead to the hydrogen of compression in the cylinder to leak into the crankcase along the piston rod, the pollution oil. Therefore, the piston rod sinking of the tail gas recovery compressor needs to be monitored, and the safe and stable operation of the compressor is ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome prior art not enough, provide the alarm structure that sinks of tail gas recovery compressor piston rod, monitor sinking of piston rod through the alarm that sinks, control the reliability height.
The purpose of the utility model is realized through the following technical scheme:
the tail gas recovery compressor piston rod sinking alarm structure comprises an installation body and a cylinder; a packing box is arranged on the mounting body, and a sealing ring arranged in the packing box is tightly sleeved on the piston rod;
at least two stuffing boxes are arranged in the installation body, the stuffing boxes are arranged side by side, and an end cover is arranged at the end part of the installation body; a hydrogen sealing bin and a nitrogen sealing bin are arranged in the mounting body, the hydrogen sealing bin is arranged on one side close to the cylinder, and a sinking alarm instrument is mounted in the hydrogen sealing bin;
the sinking alarm instrument is connected with the nitrogen storage device through a nitrogen pipeline, and a pressure gauge is arranged on the nitrogen pipeline.
Preferably, a baffle plate is arranged between the end cover and the seasoning box. Sealing surfaces are arranged on two sides of the baffle plate and respectively abut against the end cover and the seasoning box.
Preferably, the end cover is provided with a mounting groove, a sealing ring is mounted in the mounting groove, and a mounting plate is arranged on the outer side of the mounting groove.
As the preferred mode, set up the sealing washer between mounting panel and the end cover, the mounting panel passes through the screw fixation on the end cover.
As a preferred mode, the nitrogen sealed cabin is connected with a nitrogen connector, and the nitrogen connector is arranged outside the installation body; the nitrogen connector is connected with an external nitrogen pipeline, and the external nitrogen pipeline is connected with a nitrogen source.
Preferably, the nitrogen sealed cabin comprises a first nitrogen sealed cabin and a second nitrogen sealed cabin; the first nitrogen sealed cabin is connected with the first nitrogen connector, and the second nitrogen sealed cabin is connected with the second nitrogen connector.
Preferably, the first nitrogen sealing bin and the second nitrogen sealing bin are respectively arranged at two sides of the seasoning box.
Preferably, the first nitrogen sealed cabin is arranged in the installation body and is close to the hydrogen sealed cabin; the second nitrogen sealing bin is arranged in the end cover.
As a preferred mode, a first switch valve is arranged on a pipeline between the first nitrogen sealed cabin and the first nitrogen connector; and a second switch valve is arranged on a pipeline between the second nitrogen sealing bin and the second nitrogen connector.
Preferably, the sinking alarm instrument is connected to a pipeline between the first nitrogen sealed cabin and the first nitrogen connector, and the connection position of the sinking alarm instrument is located between the first switch valve and the first nitrogen connector.
The utility model has the advantages that: the utility model discloses a warning appearance sinks as the switch of nitrogen gas pipeline, when the piston rod sinks to contact when the warning appearance sinks, nitrogen gas release in the nitrogen gas pipeline, the atmospheric pressure of nitrogen gas pipeline reduces, can react the nitrogen gas pipeline pressure condition through the manometer, can judge whether the piston rod sinks through the manometer promptly, and the reliability is high.
Additionally, the utility model discloses do not adopt compressed air as the air supply, but change compressed air into nitrogen gas as the air supply of the alarm appearance that sinks, prevent that hydrogen and compressed air from forming mixability explosion gas, guarantee the compressor safe and stable operation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a nitrogen gas pipe in the example;
in the figure, 1-piston rod, 2-mounting plate, 3-second nitrogen sealing bin, 4-stuffing box, 5-waste gas pipeline, 6-first nitrogen sealing bin, 7-hydrogen pipeline, 8-cylinder, 9-sinking alarm, 10-mounting body, 11-first nitrogen joint, 12-second nitrogen joint, 13-pressure gauge, 14-pressure reducing valve and 15-stop valve.
Detailed Description
The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the equipment or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrated; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the presence of a first feature above or below a second feature may encompass direct contact of the first and second features, and may also encompass contact of the first and second features not being in direct contact, but via additional features between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. Including a first feature being directly below and obliquely below a second feature, or simply indicating that the first feature is at a lesser elevation than the second feature, if present below, under or below the second feature.
Example one
As shown in fig. 1, the piston rod 1 sinking alarm structure of the tail gas recovery compressor comprises a mounting body 10 and a cylinder 8; a stuffing box 4 is arranged on the mounting body 10, and a sealing ring arranged in the stuffing box 4 is tightly sleeved on the piston rod 1;
at least two stuffing boxes 4 are arranged in the installation body 10, the stuffing boxes 4 are arranged side by side, and end covers are arranged at the end parts of the installation body 10; a hydrogen sealing bin and a nitrogen sealing bin are arranged in the mounting body 10, the hydrogen sealing bin is arranged on one side close to the cylinder 8, and a sinking alarm instrument 9 is mounted in the hydrogen sealing bin;
the sinking alarm instrument 9 is connected with a nitrogen storage device through a nitrogen pipeline, and a pressure gauge 13 is arranged on the nitrogen pipeline.
The utility model discloses a hydrogen, nitrogen gas are sealed for the clearance between filler and the piston rod 1, because of the piston when moving to 8 one sides of cylinder, can inhale the filler gas at the opposite side, and nitrogen gas is serious to polycrystalline silicon product quality influence, so it is sealed to be close to the hydrogen that 8 one side of cylinder adopted, produces mixed nature explosive gas after the compressed gas that adopts in order to avoid sinking alarm instrument 9 and the hydrogen in hydrogen sealed storehouse mixes, the utility model discloses a nitrogen gas is as the air supply of alarm instrument 9 that sinks, guarantees the safe and stable operation of compressor.
Example two
This embodiment is similar to the first embodiment, except that a baffle is disposed between the end cap and the seasoning box. Sealing surfaces are arranged on two sides of the baffle plate and respectively abut against the end cover and the seasoning box. Set up the baffle, can play the isolation of end cover and stuffing box 4 on the one hand, on the other hand passes through the sealed of baffle, has further strengthened the sealed effect of whole device.
Set up the mounting groove on the end cover, installation sealing ring in the mounting groove, the outside of mounting groove sets up mounting panel 2. The utility model discloses pay close attention to sealing very much, consequently, set up the sealing ring at the end cover, the sealing performance of whole device can strengthen.
A sealing ring is arranged between the mounting plate 2 and the end cover, and the mounting plate 2 is fixed on the end cover through screws. Corresponding to above-mentioned seal structure, also set up seal structure, for example the sealing washer, can avoid waste gas to reveal from mounting panel 2 in mounting panel 2 department.
EXAMPLE III
The nitrogen sealed bin is connected with a nitrogen connector, and the nitrogen connector is arranged outside the installation body 10; the nitrogen connector is connected with an external nitrogen pipeline, and the external nitrogen pipeline is connected with a nitrogen source.
The nitrogen sealed cabin comprises a first nitrogen sealed cabin 6 and a second nitrogen sealed cabin 3; the nitrogen joint comprises a first nitrogen joint 11 and a second nitrogen joint 12; the first nitrogen sealed cabin 6 is connected with a first nitrogen connector 11, and the second nitrogen sealed cabin 3 is connected with a second nitrogen connector 12.
The first nitrogen sealing bin 6 and the second nitrogen sealing bin 3 are respectively arranged at two sides of the seasoning box.
The first nitrogen sealing bin 6 is arranged in the mounting body 10 and is close to the hydrogen sealing bin; the second nitrogen sealing bin 3 is arranged in the end cover.
The utility model discloses pour into nitrogen gas into from the both sides of stuffing box 4, seal through nitrogen gas, it is sealed effectual.
A first switch valve is arranged on a pipeline between the first nitrogen sealed cabin 6 and the first nitrogen connector 11; and a second switch valve is arranged on a pipeline between the second nitrogen sealing bin 3 and the second nitrogen connector 12. The purpose of setting up the valve is the switch air supply of being convenient for, and easy access is owing to set up the valve simultaneously, can carry out effective control to the air input of nitrogen gas.
The sinking alarm instrument 9 is connected to a pipeline between the first nitrogen sealed cabin 6 and the first nitrogen connector 11, and the connection position is located between the first switch valve and the first nitrogen connector 11. The device can reduce one nitrogen pipeline, saves cost, has reasonable structure and high popularization and application value.
Example four
This embodiment is similar to the previous three embodiments, except that this embodiment is further optimized for overall structure.
Sinking alarm 9: for monitoring the sinking of the piston rod 1, this can be achieved with a contact switch, which serves as a release switch for the nitrogen line. Can play through contact switch and monitor that piston rod 1 sinks, wear because of supporting ring or other bearing structure when piston rod 1, and piston rod 1's the depth of sinking reaches the setting value, for example 0.6mm, contact switch is touched to piston rod 1, contact switch opens the nitrogen gas pipeline, the pressure of nitrogen gas pipeline reduces, at this moment, safety inspection personnel can judge the nitrogen gas pipeline pressure reduction through the pressure value that manometer 13 shows, piston rod 1 sinks the volume and reaches the setting value promptly.
The contact switch comprises a trigger end and a fixed end, and the distance between the trigger end and the piston rod 1 is the sinking amount of the piston rod 1. The fixed end is connected with the trigger end, and the integrated forming technology is mostly adopted. The fixed end is fixed on the side wall of the hydrogen sealing bin, and the setting value of the sinking amount of the piston rod 1 can be adjusted by adjusting the installation distance of the fixed end.
In addition, as shown in fig. 2, a pressure reducing valve 14 and a stop valve 15 may be further disposed on the nitrogen pipeline, and the pressure reducing valve 14 is used for adjusting the pressure of the nitrogen pipeline, for example, adjusting the pressure of the nitrogen pipeline to 0.1MPa, so as to ensure continuous pressure supply to the sinking alarm 9.
As shown in fig. 1, the present invention is further provided with a hydrogen gas pipe 7 and a waste gas pipe 5. The hydrogen pipeline 7 is provided with a hydrogen joint which is convenient for connection, and the hydrogen pipeline 7 is communicated with the hydrogen sealing bin. The exhaust pipe 5 is provided with a connection joint, and the exhaust pipe 5 is used for discharging the exhaust gas in the installation body 10.
The utility model provides a tail gas recovery compressor piston rod 1 alarm structure that sinks, the air supply that will sink alarm instrument 9 changes nitrogen gas into by the compressor air for the hydrogen of leaking can not form mixability explosive gas in installation body 10. The piston rod 1 that adopts sinks alarm instrument 9 and uses nitrogen gas as its air supply, no matter reduce the mechanical fault of compressor, or the safety index of compressor operation, has all obtained great promotion, when piston rod 1 displacement is bigger than normal, triggers the warning, in time discovers, in time checks and handles, and compressed air changes nitrogen gas into simultaneously and has avoided forming the mixed explosion gas, has guaranteed the safe and steady operation of compressor. After the device is installed and debugged and enters the practical use, the requirements are met, and the compressor runs stably.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention. The above description is only exemplary of the present invention and should not be taken as limiting, and all changes, equivalents, and improvements made within the spirit and principles of the present invention should be understood as being included in the scope of the present invention.
Claims (10)
1. Tail gas recovery compressor piston rod alarm structure that sinks, its characterized in that: comprises a mounting body and a cylinder; a packing box is arranged on the mounting body, and a sealing ring arranged in the packing box is tightly sleeved on the piston rod;
at least two stuffing boxes are arranged in the installation body, the stuffing boxes are arranged side by side, and an end cover is arranged at the end part of the installation body; a hydrogen sealing bin and a nitrogen sealing bin are arranged in the mounting body, the hydrogen sealing bin is arranged on one side close to the cylinder, and a sinking alarm instrument is mounted in the hydrogen sealing bin;
the sinking alarm instrument is connected with the nitrogen storage device through a nitrogen pipeline, and a pressure gauge is arranged on the nitrogen pipeline.
2. The piston rod sinking alarm structure of the tail gas recovery compressor according to claim 1, characterized in that: a baffle plate is arranged between the end cover and the seasoning box.
3. The piston rod sinking alarm structure of the tail gas recovery compressor according to claim 1, characterized in that: the end cover is provided with a mounting groove, a sealing ring is mounted in the mounting groove, and a mounting plate is arranged on the outer side of the mounting groove.
4. The piston rod sinking alarm structure of the tail gas recovery compressor according to claim 3, wherein: and a sealing ring is arranged between the mounting plate and the end cover, and the mounting plate is fixed on the end cover through screws.
5. The piston rod sinking alarm structure of the tail gas recovery compressor according to claim 1, characterized in that: the nitrogen sealing bin is connected with a nitrogen connector, and the nitrogen connector is arranged outside the installation body; the nitrogen connector is connected with an external nitrogen pipeline, and the external nitrogen pipeline is connected with a nitrogen source.
6. The piston rod sinking alarm structure of the tail gas recovery compressor according to claim 5, wherein: the nitrogen sealed cabin comprises a first nitrogen sealed cabin and a second nitrogen sealed cabin; the nitrogen gas connects including first nitrogen gas and connects and second nitrogen gas connects, and first nitrogen seals the storehouse and connects with first nitrogen gas, and second nitrogen seals the storehouse and connects with the second nitrogen gas and link to each other.
7. The piston rod sinking alarm structure of the tail gas recovery compressor according to claim 6, wherein: the first nitrogen sealing bin and the second nitrogen sealing bin are respectively arranged on two sides of the seasoning box.
8. The piston rod sinking alarm structure of the tail gas recovery compressor according to claim 6 or 7, wherein: the first nitrogen sealing bin is arranged in the installation body and is close to the hydrogen sealing bin; the second nitrogen sealing bin is arranged in the end cover.
9. The piston rod sinking alarm structure of the tail gas recovery compressor according to claim 6, wherein:
a first switch valve is arranged on a pipeline between the first nitrogen sealed cabin and the first nitrogen connector; and a second switch valve is arranged on a pipeline between the second nitrogen sealing bin and the second nitrogen connector.
10. The piston rod sinking alarm structure of the tail gas recovery compressor according to claim 9, wherein:
the sinking alarm instrument is connected to a pipeline between the first nitrogen sealing bin and the first nitrogen connector, and the connection position of the sinking alarm instrument is located between the first switch valve and the first nitrogen connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921852833.5U CN211258959U (en) | 2019-10-31 | 2019-10-31 | Tail gas recovery compressor piston rod alarm structure that sinks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921852833.5U CN211258959U (en) | 2019-10-31 | 2019-10-31 | Tail gas recovery compressor piston rod alarm structure that sinks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211258959U true CN211258959U (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921852833.5U Active CN211258959U (en) | 2019-10-31 | 2019-10-31 | Tail gas recovery compressor piston rod alarm structure that sinks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211258959U (en) |
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2019
- 2019-10-31 CN CN201921852833.5U patent/CN211258959U/en active Active
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