CN210564968U - Packing structure suitable for compressor containing strong corrosive gas - Google Patents
Packing structure suitable for compressor containing strong corrosive gas Download PDFInfo
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- CN210564968U CN210564968U CN201921331801.0U CN201921331801U CN210564968U CN 210564968 U CN210564968 U CN 210564968U CN 201921331801 U CN201921331801 U CN 201921331801U CN 210564968 U CN210564968 U CN 210564968U
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Abstract
The utility model provides a packing structure suitable for contain strong corrosive gas's compressor, this structure can block up the filler gas leakage, prevent that corrosive gas from leaking to the fuselage, it includes the piston rod, packing box and floating seal ring, packing box includes main packing box, hydrogen packing box and nitrogen gas packing box, main packing box, hydrogen packing box and nitrogen gas packing box arrange from the cylinder side in proper order, main packing box, hydrogen packing box and nitrogen gas packing box move sealing connection through floating seal ring and piston rod respectively.
Description
Technical Field
The utility model relates to a compressor technical field, concretely relates to packing structure suitable for contain strong corrosive gas's compressor.
Background
In the compressor for the tail gas of the polysilicon plant,the compression medium in the cylinder is SiCl4、SiHCl3、SiH2Once the compression medium in the cylinder leaks into the machine body, the mixed hydrogen of the corrosive gases such as Cl, HCl and the like can cause the lubricating oil at each position in the machine body to react with the compression medium and deteriorate, generate viscous colloidal substances, block an oil filter, influence the lubrication of a transmission mechanism and further influence the normal operation of the whole compressor.
In the conventional leakage-proof structure of the compressor, a packing structure is arranged between an air cylinder and a machine body, and a floating sealing ring is arranged between the packing and a piston rod for dynamic sealing.
SUMMERY OF THE UTILITY MODEL
Not enough to current packing structure leakproofness, probably lead to corrosive gas to leak the shortcoming to the fuselage, the utility model provides a packing structure suitable for contain strong corrosive gas's compressor, this structure can block up packing gas leakage, prevents corrosive gas from leaking to the fuselage.
The utility model provides a following technical scheme:
the utility model provides a packing structure suitable for contain strong corrosive gas's compressor, its includes piston rod, stuffing box and floating seal ring, its characterized in that: the packing box comprises a main packing box, a hydrogen packing box and a nitrogen packing box, wherein the main packing box, the hydrogen packing box and the nitrogen packing box are sequentially arranged from the side of a cylinder, and the main packing box, the hydrogen packing box and the nitrogen packing box are respectively connected with the piston rod in a dynamic sealing mode through the floating sealing ring.
It is further characterized in that:
the bottom end of the packing box is provided with a hydrogen inlet, a hydrogen outlet, a packing return gas outlet and a nitrogen inlet;
the filler return air outlet is communicated to matching surfaces among the main filler box, the hydrogen filler box and the piston rod through a channel, the hydrogen inlet is communicated to the middle section of the matching surfaces of the hydrogen filler box and the piston rod through a channel, the hydrogen outlet is communicated to the matching surfaces among the hydrogen filler box, the nitrogen filler box and the piston rod through a channel, and the nitrogen inlet is communicated to the matching surfaces of the nitrogen filler box and the piston rod through a channel;
the main stuffing box is in dynamic seal with the piston rod through at least five groups of floating seal rings;
the front end of the hydrogen inlet channel of the hydrogen filling box is provided with at least three groups of floating sealing rings, and the rear end of the hydrogen inlet channel is provided with at least two groups of floating sealing rings which are in dynamic seal with the piston rod;
the front end and the rear end of the nitrogen inlet channel of the nitrogen stuffing box are respectively provided with at least one group of floating sealing rings which are in dynamic seal with the piston rod;
and locking rings are respectively installed on one sides of the floating sealing rings, which are close to the air inlet direction, and two locking rings are respectively installed on two groups of floating sealing rings of the nitrogen packing box.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model prevents the corrosive gas from leaking outwards between the packing box and the piston rod to damage the machine body by arranging the hydrogen packing box and the nitrogen packing box, wherein the hydrogen in the hydrogen packing box seals and compresses the corrosive gas, and the packing is blocked and the gas leaks under the condition of not polluting the medium in the cylinder; the nitrogen packing box is arranged on one side of the machine body and used for blocking and intercepting gas leakage which is not blocked by hydrogen, meanwhile, the flowing nitrogen is used for purging the nitrogen packing box on the tail side of the packing, and slight gas leakage of the packing which is not blocked by the first two blocks is purged out of the compressor, so that triple guarantee is achieved, and corrosive gas is further prevented from leaking to the machine body; and the filler return gas outlet channel can discharge the main filler gas leakage, the gas leakage sealed and compressed by hydrogen to a gas device, and the main filler gas leakage, the gas leakage sealed and compressed by hydrogen are uniformly recovered, so that pollution is avoided, and the corrosive gas leakage is further prevented.
Drawings
FIG. 1 is a schematic drawing of a hydrogen inlet section of the present invention;
FIG. 2 is a schematic cross-sectional view of the nitrogen inlet of the present invention;
fig. 3 is a schematic view of the bottom end of the stuffing box of the present invention;
in the figure: 1 a piston rod; 2, a stuffing box; 3 floating sealing ring; 4, a main stuffing box; 5, a hydrogen stuffing box; 6, a nitrogen stuffing box; 7 a hydrogen inlet; 8 a hydrogen outlet; 9 a filler return air outlet; 10 nitrogen inlet; 11 locking the ring.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present 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.
Referring to fig. 1-3, a packing structure for a compressor containing strong corrosive gas, which comprises a piston rod 1, a packing box 2 and a floating sealing ring 3, is characterized in that: the stuffing box 2 comprises a main stuffing box 42, a hydrogen stuffing box 52 and a nitrogen stuffing box 62, the main stuffing box 42, the hydrogen stuffing box 52 and the nitrogen stuffing box 62 are sequentially arranged from the cylinder side, and the main stuffing box 42, the hydrogen stuffing box 52 and the nitrogen stuffing box 62 are respectively in dynamic sealing connection with the piston rod 1 through a floating sealing ring 3. The hydrogen inlet 7 has been seted up to 2 bottom ends of gland packing, hydrogen outlet 8, filler return-air outlet 9 and nitrogen gas import 10, filler return-air outlet 9 communicates to main gland packing 42 through the passageway, the fitting surface between hydrogen gland packing 52 and the 1 three of piston rod, hydrogen inlet 7 communicates to hydrogen gland packing 52 and 1 fitting surface middle section of piston rod through the passageway, hydrogen outlet 8 communicates to hydrogen gland packing 52 through the passageway, the fitting surface of nitrogen gas gland packing 62 and 1 three of piston rod, nitrogen gas import 10 communicates to nitrogen gas gland packing 62 and 1 fitting surface of piston rod through the passageway.
The main stuffing box 42 is in dynamic seal with the piston rod 1 through at least five groups of floating seal rings 3, the front end of a hydrogen inlet channel of the hydrogen stuffing box 52 is provided with at least three groups of floating seal rings 3, the rear end of the hydrogen inlet channel is provided with at least two groups of floating seal rings 3 in dynamic seal with the piston rod 1, one side of each floating seal ring 3 close to the air inlet direction is respectively provided with a locking ring 11, and two locking rings 11 are respectively arranged on the two groups of floating seal rings 3 of the nitrogen stuffing box 62. The utility model prevents the corrosive gas from leaking outwards between the packing box 2 and the piston rod 1 to damage the machine body by arranging the hydrogen packing box 52 and the nitrogen packing box 62, wherein the hydrogen in the hydrogen packing box 52 seals and compresses the corrosive gas, and the packing is blocked and leaks gas under the condition of not polluting the medium in the cylinder; the nitrogen packing box 62 is arranged on one side of the machine body and used for blocking and intercepting gas leakage which is not blocked by hydrogen, meanwhile, the flowing nitrogen is used for purging the nitrogen packing box 62 on the tail side of the packing, and slight gas leakage of the packing which is not blocked by the first two channels is purged out of the compressor, so that triple guarantee is achieved, and corrosive gas is further prevented from leaking to the machine body; and the 9 channels of the filler return air outlet can discharge the air leakage of the main filler, the air leakage sealed and compressed by the hydrogen to the air device, and the air leakage is uniformly recovered, thereby avoiding pollution and further ensuring the prevention of corrosive gas leakage.
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 (7)
1. The utility model provides a packing structure suitable for contain strong corrosive gas's compressor, its includes piston rod, stuffing box and floating seal ring, its characterized in that: the packing box comprises a main packing box, a hydrogen packing box and a nitrogen packing box, wherein the main packing box, the hydrogen packing box and the nitrogen packing box are sequentially arranged from the side of a cylinder, and the main packing box, the hydrogen packing box and the nitrogen packing box are respectively connected with the piston rod in a dynamic sealing mode through the floating sealing ring.
2. The packing structure of claim 1, wherein the packing structure is adapted for a compressor containing a strong corrosive gas, and comprises: the bottom end of the packing box is provided with a hydrogen inlet, a hydrogen outlet, a packing return air outlet and a nitrogen inlet.
3. The packing structure of claim 2, wherein the packing structure is adapted for a compressor containing a strong corrosive gas, and comprises: the filler return air outlet is communicated to matching surfaces among the main filler box, the hydrogen filler box and the piston rod through a channel, the hydrogen inlet is communicated to the middle section of the matching surfaces of the hydrogen filler box and the piston rod through a channel, the hydrogen outlet is communicated to the matching surfaces among the hydrogen filler box, the nitrogen filler box and the piston rod through a channel, and the nitrogen inlet is communicated to the matching surfaces of the nitrogen filler box and the piston rod through a channel.
4. The packing structure of claim 1, wherein the packing structure is adapted for a compressor containing a strong corrosive gas, and comprises: the main stuffing box is in dynamic seal with the piston rod through at least five groups of floating seal rings.
5. The packing structure of claim 1, wherein the packing structure is adapted for a compressor containing a strong corrosive gas, and comprises: the front end of the hydrogen inlet channel of the hydrogen stuffing box is provided with at least three groups of floating sealing rings, and the rear end of the hydrogen inlet channel is provided with at least two groups of floating sealing rings and the piston rod for dynamic sealing.
6. The packing structure of claim 1, wherein the packing structure is adapted for a compressor containing a strong corrosive gas, and comprises: the front end and the rear end of the nitrogen inlet channel of the nitrogen stuffing box are respectively provided with at least one group of floating sealing rings and the piston rod for dynamic sealing.
7. The packing structure of claim 1, wherein the packing structure is adapted for a compressor containing a strong corrosive gas, and comprises: and locking rings are respectively installed on one sides of the floating sealing rings, which are close to the air inlet direction, and two locking rings are respectively installed on two groups of floating sealing rings of the nitrogen packing box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921331801.0U CN210564968U (en) | 2019-08-16 | 2019-08-16 | Packing structure suitable for compressor containing strong corrosive gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921331801.0U CN210564968U (en) | 2019-08-16 | 2019-08-16 | Packing structure suitable for compressor containing strong corrosive gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210564968U true CN210564968U (en) | 2020-05-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921331801.0U Active CN210564968U (en) | 2019-08-16 | 2019-08-16 | Packing structure suitable for compressor containing strong corrosive gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210564968U (en) |
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2019
- 2019-08-16 CN CN201921331801.0U patent/CN210564968U/en active Active
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