CN202209263U - Gas seal device for polysilicon tail gas compressor - Google Patents
Gas seal device for polysilicon tail gas compressor Download PDFInfo
- Publication number
- CN202209263U CN202209263U CN2011202993364U CN201120299336U CN202209263U CN 202209263 U CN202209263 U CN 202209263U CN 2011202993364 U CN2011202993364 U CN 2011202993364U CN 201120299336 U CN201120299336 U CN 201120299336U CN 202209263 U CN202209263 U CN 202209263U
- Authority
- CN
- China
- Prior art keywords
- gas
- piston rod
- filler
- source
- high pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a gas seal device for a piston-type tail gas compressor in the polysilicon industry, and aims to provide a gas seal device for the polysilicon tail gas compressor, which has a simple structure, is simple and convenient in operation, and provides convenience for operating staff to check whether a tail gas discharge pipeline is unimpeded or not promptly, so as to treat the condition when the tail gas discharge pipeline is impeded promptly to prevent a compressed medium from leaking to a machine body. The gas seal device comprises a middle seat connected between a cylinder and the machine body, wherein main packing and oil strainer packing are fixedly connected to the middle seat through a packing box; a gland is arranged at one end of the packing box; the main packing and the oil strainer packing are in dynamic seal with a piston rod through at least two groups of floating seal rings; a blowing gas inlet and a second exhaust port are formed on the middle seat; the inlet end of the blowing gas inlet is connected with a pressure gauge, a reducing valve, a stop valve and a gas source sequentially; and the gas seal device further comprises a float flowmeter connected between the blowing gas inlet and the reducing valve.
Description
Technical field
The utility model relates to a kind of piston gas compressor, particularly relates to a kind of air seal set that is used for the tail-gas compressor of polysilicon industry.
Background technique
In the polysilicon industry; Because (hydrogen accounts for more than 90 percent to the compressed media in the compresser cylinder; Remaining a few percent is trichlorosilane, silicon tetrachloride, dichloro-dihydro silicon, hydrogen cloride etc.) have a special nature, in case thereby the compressed media in the cylinder compression chamber leak in the fuselage along the piston rod that constantly moves (motive sealing), lubricant oil everywhere and compressed media in the fuselage are reacted; Generate the colloid substance of thickness; Stop up oil strainer, influence the lubricated of driving mechanism, and then have influence on the normal operation of whole tail-gas compressor.
In order to avoid occurring the problems referred to above as much as possible; Existing polysilicon industry is used tail-gas compressor; Adopt packing seal to seal the mode that combines in the middle base that between cylinder and fuselage, is provided with gas purging; The compressed media that leaks toward the fuselage place along piston rod is carried out packing seal step by step combine, thoroughly remove away with the compressed media that will leak in the middle base, thereby avoid owing to compressed media gets into a series of negative consequences that fuselage brings with the nitrogen purging.
Above-mentioned nitrogen purges measure in actual use; The compressed media that leaks to middle base can not in time be drained because the toxic emission pipeline stops up through regular meeting; Yet; The compressor operation personnel but can not in time find and handle, thereby cause the cumulative fuselage that will leak at last of compressed media, bring negative consequence for the lubrication systems at different levels of fuselage.
The model utility content
In order to solve the problems of the technologies described above; The utility model provide a kind of simple in structure, easy and simple to handle, be convenient to the compressor operation personnel and find in time whether the toxic emission pipeline unimpeded; Thereby can when not smooth, in time handle, leak to the polysilicon tail gas compressor air seal set in the fuselage to avoid compressed media.
A kind of polysilicon tail gas compressor of the utility model air seal set; Comprise the middle base that is fixedly connected between cylinder and the fuselage; Piston rod in the cylinder passes middle base and links to each other with connecting rod in the fuselage; The position of passing piston rod on middle base and the cylinder joint is provided with main filler, and the position of passing piston rod on middle base and the fuselage joint is provided with the oil strainer filler, and main filler all is fixedly connected with middle base through stuffing box with the oil strainer filler; Stuffing box one end is provided with gland; Main filler and oil strainer filler all through at least two group fluctuate hermetical rings and piston rod motive sealing, offer the sweep gas suction port and second relief opening in piston rod position on the said middle base, the entry end of sweep gas suction port is connected with pressure gauge, reduction valve, stop valve and source of the gas in turn; Also comprise float flowmeter, said float flowmeter is connected between the reduction valve on sweep gas suction port and this branch road.
The utility model difference from prior art is: the utility model polysilicon tail gas compressor air seal set; On the basis of existing technology; Between sweep gas suction port and reduction valve, set up float flowmeter; So that in the compressor operating process; The compressor operation personnel can judge whether second relief opening not smooth situation occurs stopping up according to the float height in the float flowmeter; Then operator can clear up second relief opening in view of the above at any time, guarantee can effectively purge the compressed media that leaks in the fuselage side compartment from the gas that the sweep gas suction port gets into, to avoid bringing a series of negative consequences because of leaking compressed media entering fuselage to fuselage.
The utility model polysilicon tail gas compressor air seal set, the source of the gas that wherein said sweep gas suction port connects is the first nitrogen source of the gas, and the delivery pressure of the first nitrogen source of the gas is 0.05-0.1Mpa, and second relief opening is connected with the pipeline that is communicated to the safety zone.Adopting the nitrogen source of the gas is because the nitrogen cost is lower, and nitrogen not with cylinder in pressurized gas generation chemical reaction.
The utility model polysilicon tail gas compressor air seal set; Be provided with dividing plate in the wherein said middle base; Middle base is divided near the cylinder side compartment of cylinder with near the fuselage side compartment of fuselage, filler in the middle of the position of passing piston rod on the dividing plate is provided with, middle filler is fixedly connected with middle base through stuffing box; Stuffing box one end is provided with gland, and middle filler passes through at least two group fluctuate hermetical rings and piston rod motive sealing in piston rod position.Adopting this structure is in order to realize that the spatial separation between cylinder and the fuselage combines with packing seal step by step, to strengthen the sealing between cylinder and the fuselage, preventing that the compressed media in the cylinder from leaking in the fuselage.
The utility model polysilicon tail gas compressor air seal set; Wherein said main filler is provided with air chamber and inflating cavity through at least four group fluctuate hermetical rings and piston rod motive sealing in the main filler, air chamber and inflating cavity lay respectively between two groups of fluctuate hermetical rings; And contact around piston rod and with the outer surface of piston rod; Inflating cavity is located at the air chamber right side, offers first relief opening and the first high pressure admission mouth on the said cylinder side compartment, and air chamber is connected with first relief opening through pipeline; Inflating cavity is connected with the first high pressure admission mouth through pipeline; The entry end of the said first high pressure admission mouth is connected with pressure gauge, reduction valve, stop valve and hydrogen source gas in turn, and the delivery pressure of hydrogen source gas is 0.15-0.2Mpa, and the concrete incoming pressure value at the first high pressure admission mouth place can be controlled through the reduction valve on this branch road.Adopt said structure; Be in order to emit through first relief opening when the compressed media of cylinder internal leakage is in it leaks to main filler; And increase the high pressure hydrogen blocking seal at main filler place; Stoping leaking medium leakages that continue to turn right, use the hydrogen high pressure to block, is the processing technology that influences the user for fear of other gases such as nitrogen entering cylinder.
The utility model polysilicon tail gas compressor air seal set; Offer the second high pressure admission mouth on wherein said cylinder side compartment or the fuselage side compartment; The second high pressure admission mouth be connected through pipeline between middle filler and the piston rod and the gap between two groups of fluctuate hermetical rings; The entry end of the said second high pressure admission mouth is connected with pressure gauge, reduction valve, stop valve and the second nitrogen source of the gas in turn; The delivery pressure of the second nitrogen source of the gas is 0.15-0.2Mpa, and the concrete incoming pressure value at the second high pressure admission mouth place can be controlled through the reduction valve on this branch road.Adopting this structure, is to block sealing in order to increase the one-level pressurized gas at middle filler place, has further strengthened the sealability of whole air seal set, stops compressed media further to leak toward the fuselage side through middle filler.
The utility model polysilicon tail gas compressor air seal set; Offer the 3rd high pressure admission mouth on the wherein said fuselage side compartment; The 3rd high pressure admission mouth be connected through pipeline between oil strainer filler and the piston rod and the gap between two groups of fluctuate hermetical rings; The entry end of said the 3rd high pressure admission mouth is connected with pressure gauge, reduction valve, stop valve and the 3rd nitrogen source of the gas in turn; The delivery pressure of the 3rd nitrogen source of the gas is 0.15-0.2Mpa, and the concrete incoming pressure value at the 3rd high pressure admission mouth place can be controlled through the reduction valve on this branch road.Adopt this structure; Be to block sealing in order to increase the one-level pressurized gas at oil strainer filler place; Further strengthened the sealing effect of whole air seal set, played the last obstruction sealing before compressed media gets into fuselage, stoped the compressed media that leaks so far toward the fuselage internal leakage.
Be described further below in conjunction with the polysilicon tail gas compressor air seal set of accompanying drawing the utility model.
Description of drawings
Fig. 1 is the structural representation of the utility model polysilicon tail gas compressor air seal set;
Fig. 2 is the partial sectional view of the utility model polysilicon tail gas compressor air seal set;
Fig. 3 is the partial enlarged drawing of I part among Fig. 2;
Fig. 4 is the partial enlarged drawing of II part among Fig. 2;
Fig. 5 is the partial enlarged drawing of III part among Fig. 2.
Embodiment
To shown in Figure 5, a kind of polysilicon tail gas compressor of the utility model air seal set comprises two compartment seats of being located between cylinder 1 and the fuselage 2 like Fig. 1; Near cylinder 1 be cylinder side compartment 6, near fuselage 2 is that fuselage side compartment 7, two compartments 6,7 are separated through dividing plate 11; Piston 3 in the cylinder 1 links to each other with connecting rods in the fuselage 2 through piston rod 4, and cylinder side compartment 6 and cylinder 1 are connected through bolton, and fuselage side compartment 7 and fuselage 2 are connected through bolton; The position of wherein passing piston rod 4 on cylinder side compartment 6 and cylinder 1 joint is provided with main filler 8, and the position of passing piston rod 4 on the dividing plate 11 is provided with middle filler 9, and the position of passing piston rod 4 on fuselage side compartment 7 and fuselage 2 joints is provided with oil strainer filler 10; Main filler 8, middle filler 9 and oil strainer filler 10 all are connected through bolt with two compartment seats through stuffing box 22, offer the through hole that piston rod 4 is therefrom passed on the stuffing box 22, and stuffing box 22 1 ends are provided with gland 33; So that the filler 8,9,10 in the stuffing box 22 is compressed; Middle filler 9 and oil strainer filler 10 are all through two groups of fluctuate hermetical rings 12 and piston rod 4 motive sealings, and the right side of fluctuate hermetical rings 12 is provided with two groups of scraper rings 21 in the oil strainer filler 10, and main filler 8 is through seven groups of fluctuate hermetical rings 12 and piston rod 4 motive sealings; Air chamber 14 and inflating cavity 15 are set in the main filler 8; Air chamber 14 and inflating cavity 15 lay respectively between two groups of fluctuate hermetical rings 12, and contact around piston rod 4 and with the outer surface of piston rod 4, and inflating cavity 15 is located at air chamber 14 right sides; Offer first relief opening 16 and the first high pressure admission mouth 17 on the cylinder side compartment 6; Air chamber 14 is connected with first relief opening 16 through pipe, and inflating cavity 15 is connected with the first high pressure admission mouth 17 through seal washer, pipe and FERRULETYPE joint, offers sweep gas suction port 18, second relief opening 19 and the second high pressure admission mouth 20 on the fuselage side compartment 7; The 3rd high pressure admission mouth and the second high pressure admission mouth 20 are same suction port; The 3rd nitrogen source of the gas and the second nitrogen source of the gas 29 are same nitrogen source of the gas, and the second high pressure admission mouth 20 described below refers to the 3rd high pressure admission mouth all together, and the second nitrogen source of the gas 29 refers to the 3rd nitrogen source of the gas all together; The second high pressure admission mouth 20 be connected through FERRULETYPE joint, pipe and seal washer between middle filler 9 and the piston rod 4 and gap between two groups of fluctuate hermetical rings 12; The second high pressure admission mouth 20 be connected through FERRULETYPE joint, pipe and seal washer between oil strainer filler 10 and the piston rod 4 and gap between two groups of fluctuate hermetical rings 12, the entry end that the entry end of sweep gas suction port 18 is connected with float flowmeter 110, pressure gauge 111, reduction valve 112, stop valve 113 and the first nitrogen source of the gas, 28, the first high pressure admission mouths 17 and the second high pressure admission mouth 20 in turn all is connected with pressure gauge, reduction valve, stop valve in turn; Wherein the first high pressure admission mouth, 17 outermost end also are connected with hydrogen source gas 27; The outermost end of the second high pressure admission mouth 20 also is connected with the second nitrogen source of the gas 29, and the delivery pressure of hydrogen source gas 27 is 0.15-0.2Mpa, and the delivery pressure of the first nitrogen source of the gas 28 is 0.05-0.1Mpa; The delivery pressure of the second nitrogen source of the gas 29 is 0.15-0.2Mpa, and wherein first relief opening 16 is connected with the pipeline that is communicated to the safety zone respectively with second relief opening 19.
As shown in Figure 1, this device can at first be regulated the reduction valve 112 on the sweep gas suction port 18 in use; Through observing the pressure gauge 111 on this branch road; The outlet pressure of this reduction valve 112 is adjusted to a certain concrete numerical value between the 0.05-0.1Mpa, with the flow that guarantees that nitrogen purges, after this in the compressor operating process; Operator can be through observing the float height in the float flowmeter 110 at any time; Judge whether second relief opening is unimpeded, so that when finding that second relief opening is not smooth, in time handle, the compressed media of avoiding leaking in the fuselage side compartment gets into fuselage; When second relief opening, 19 places can not zero-pressure during discharging, can be through regulating the suction pressures that reduction valve 112 suitably improves sweep gas suction ports 18 places, to guarantee as far as possible in the second relief opening 19 places zero-pressures discharging.
Above-described embodiment describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Under the prerequisite that does not break away from the utility model design spirit; Various distortion and improvement that those of ordinary skills make the technological scheme of the utility model all should fall in the definite protection domain of the utility model claims.
Claims (9)
1. polysilicon tail gas compressor air seal set; Comprise the middle base that is fixedly connected between cylinder (1) and the fuselage (2); Piston rod (4) in the cylinder (1) passes middle base and links to each other with the interior connecting rod of fuselage (2); The position of passing piston rod (4) on middle base and cylinder (1) joint is provided with main filler (8); The position of passing piston rod (4) on middle base and fuselage (2) joint is provided with oil strainer filler (10); Main filler (8) all is fixedly connected with middle base through stuffing box (22) with oil strainer filler (10), and stuffing box (22) one ends are provided with gland (33), main filler (8) and oil strainer filler (10) in piston rod (4) position all through at least two group fluctuate hermetical rings (12) and piston rod (4) motive sealing; Offer sweep gas suction port (18) and second relief opening (19) on the said middle base; The entry end of sweep gas suction port (18) is connected with pressure gauge (111), reduction valve (112), stop valve (113) and source of the gas in turn, it is characterized in that: also comprise float flowmeter (110), said float flowmeter (110) is connected between sweep gas suction port (18) and the reduction valve (112).
2. polysilicon tail gas compressor air seal set according to claim 1; It is characterized in that: said source of the gas is the first nitrogen source of the gas (28); The delivery pressure of the first nitrogen source of the gas (28) is 0.05-0.1Mpa, and second relief opening (19) is connected with the pipeline that is communicated to the safety zone.
3. polysilicon tail gas compressor air seal set according to claim 1 and 2; It is characterized in that: be provided with dividing plate (11) in the said middle base; Middle base is divided near the cylinder side compartment (6) of cylinder with near the fuselage side compartment (7) of fuselage; The position of passing piston rod (4) on the dividing plate (11) is provided with middle filler (9); Middle filler (9) is fixedly connected with middle base through stuffing box (22), and stuffing box (22) one ends are provided with gland (33), and middle filler (9) passes through at least two group fluctuate hermetical rings (12) and piston rod (4) motive sealing in piston rod (4) position.
4. polysilicon tail gas compressor air seal set according to claim 3; It is characterized in that: said main filler (8) is through at least four group fluctuate hermetical rings (12) and piston rod (4) motive sealing; Air chamber (14) and inflating cavity (15) are set in the main filler (8); Air chamber (14) and inflating cavity (15) lay respectively between two groups of fluctuate hermetical rings (12), and contact around piston rod (4) and with the outer surface of piston rod (4), and inflating cavity (15) is located at air chamber (14) right side; Offer first relief opening (16) and the first high pressure admission mouth (17) on the said cylinder side compartment (6); Air chamber (14) is connected with first relief opening (16) through pipeline, and inflating cavity (15) is connected with the first high pressure admission mouth (17) through pipeline, and the entry end of the said first high pressure admission mouth (17) is connected with pressure gauge, reduction valve, stop valve and source of the gas in turn.
5. polysilicon tail gas compressor air seal set according to claim 4 is characterized in that: said source of the gas is hydrogen source gas (27), and the delivery pressure of hydrogen source gas (27) is 0.15-0.2Mpa.
6. polysilicon tail gas compressor air seal set according to claim 3; It is characterized in that: offer the second high pressure admission mouth (20) on said cylinder side compartment (6) or the fuselage side compartment (7); The second high pressure admission mouth (20) be positioned in the middle of between filler (9) and the piston rod (4) and gap between two groups of fluctuate hermetical rings (12) be connected through pipeline, the entry end of the said second high pressure admission mouth (20) is connected with pressure gauge, reduction valve, stop valve and source of the gas in turn.
7. polysilicon tail gas compressor air seal set according to claim 6 is characterized in that: said source of the gas is the second nitrogen source of the gas (29), and the delivery pressure of the second nitrogen source of the gas (29) is 0.15-0.2Mpa.
8. polysilicon tail gas compressor air seal set according to claim 3; It is characterized in that: offer the 3rd high pressure admission mouth on the said fuselage side compartment (7); The 3rd high pressure admission mouth be positioned between oil strainer filler (10) and the piston rod (4) and the gap between two groups of fluctuate hermetical rings (12) is connected through pipeline, the entry end of said the 3rd high pressure admission mouth is connected with pressure gauge, reduction valve, stop valve and source of the gas in turn.
9. polysilicon tail gas compressor air seal set according to claim 8 is characterized in that: said source of the gas is the 3rd nitrogen source of the gas, and the delivery pressure of the 3rd nitrogen source of the gas is 0.15-0.2Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202993364U CN202209263U (en) | 2011-08-17 | 2011-08-17 | Gas seal device for polysilicon tail gas compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202993364U CN202209263U (en) | 2011-08-17 | 2011-08-17 | Gas seal device for polysilicon tail gas compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202209263U true CN202209263U (en) | 2012-05-02 |
Family
ID=45988814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202993364U Expired - Lifetime CN202209263U (en) | 2011-08-17 | 2011-08-17 | Gas seal device for polysilicon tail gas compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202209263U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339213A (en) * | 2017-06-28 | 2017-11-10 | 江苏亚太工业泵科技发展有限公司 | Double isolation chamber structure reciprocating vacuum pumps |
| CN113203571A (en) * | 2021-04-09 | 2021-08-03 | 武汉理工大学 | Cylinder sleeve-piston ring test platform for simulating environment of LNG fuel diesel engine |
-
2011
- 2011-08-17 CN CN2011202993364U patent/CN202209263U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339213A (en) * | 2017-06-28 | 2017-11-10 | 江苏亚太工业泵科技发展有限公司 | Double isolation chamber structure reciprocating vacuum pumps |
| CN113203571A (en) * | 2021-04-09 | 2021-08-03 | 武汉理工大学 | Cylinder sleeve-piston ring test platform for simulating environment of LNG fuel diesel engine |
| CN113203571B (en) * | 2021-04-09 | 2022-03-04 | 武汉理工大学 | Cylinder sleeve-piston ring test platform for simulating environment of LNG fuel diesel engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202203077U (en) | Leakproof structure of polycrystalline silicon tail gas compressor | |
| CN201851343U (en) | Leak-free leakage detection module for plunger pump | |
| CN205607605U (en) | Clean test bench that suppresses | |
| CN110793860A (en) | High-pressure hydrogen testing system and method | |
| CN202671187U (en) | High-pressure oil injection tool | |
| CN202209263U (en) | Gas seal device for polysilicon tail gas compressor | |
| CN107192511A (en) | A kind of leak tightness test device | |
| CN207962103U (en) | A kind of nitrogen displacer gas device | |
| CN201974277U (en) | Air-tight testing device | |
| CN207261719U (en) | A kind of quick device with pressure for replacing valve greasing mouth | |
| CN110763402A (en) | Testing device for universal use of multiple valves | |
| CN207019846U (en) | A kind of leak tightness test device | |
| CN108547957B (en) | Double-body valve and method for blocking internal leakage of valve gas material by high-pressure barrier medium | |
| CN217300909U (en) | Air seal type screw compressor | |
| CN207034638U (en) | Multistation welding is concentrated and supplies argon gas device | |
| CN205538110U (en) | A device for testing shell body gas tightness | |
| CN112049936A (en) | Novel reciprocating compressor gauge piece leakage-proof system | |
| CN211574241U (en) | Leak-free detection system for a sealing device with a collecting device | |
| CN204647850U (en) | A kind of with discharging and the gas control panel of the one-sided air feed connect | |
| CN102661287A (en) | Fireproof and leakproof system for high-temperature centrifugal pump | |
| CN204114167U (en) | Reduction valve | |
| CN208268490U (en) | A kind of steam extraction check accelerator control system | |
| CN205013757U (en) | Two -way exhaust open/close valve | |
| CN102853257A (en) | High-purity and safe special gas cabinet system | |
| CN212455505U (en) | Novel reciprocating compressor gauge piece leakage-proof system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120502 |
|
| CX01 | Expiry of patent term |