CN202023941U - Plug cock valve for large diameter gas pipeline - Google Patents
Plug cock valve for large diameter gas pipeline Download PDFInfo
- Publication number
- CN202023941U CN202023941U CN2010206289915U CN201020628991U CN202023941U CN 202023941 U CN202023941 U CN 202023941U CN 2010206289915 U CN2010206289915 U CN 2010206289915U CN 201020628991 U CN201020628991 U CN 201020628991U CN 202023941 U CN202023941 U CN 202023941U
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- transmission shaft
- end bearing
- end cap
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Abstract
The utility model discloses a plug cock valve for a large diameter gas pipeline, including a plug cock body (1) which has conicity in the inner cavity, and a plug cock core (2) corresponding to the conicity of the inner cavity. The plug cock valve is characterized in that the big end and the small end of the inner cavity are respectively provided with a big end cover (6) and a small end cover (19), the peripheries of the big end cover (6) and the small end cover (19) are respectively connected to the plug cock body via a sealing ring and a bolt, the big end cover (6) and the small end cover (19) are provided with middle holes, the big end and the small end of the plug cock core (2) are respectively provided with a transmission shaft (30) and a transmission shaft (29). The transmission shaft (30) penetrated through the middle hole of the big end cover extends to the external side of the big end cover (6) and is fixed on the big end cover (6) via a big end bearing (15) and a big end bearing cover (13), the transmission shaft (29) is inserted into the middle hole of the small end cover (19) and is fixed on the small end cover (19) via a small end bearing (26) and a small end bearing cover (21). Such a plug cock valve solves the problems of the centralizing of the two rotating kinematic pairs and the large resistance of the kinematic pairs as well as the inconvenience manufacturing of large plug cocks.
Description
Technical field
The utility model relates to a kind of pipe switch valve field, relates in particular to a kind of stopcock that is used for the major diameter gas pipe line with cut-out or switching coal gas.
Background technique
In industries such as metallurgy, mine, chemical industry, coking, cock class valve is all adopted in gas commutation and cut-out that gas pipeline is carried.Stopcock structure is provided with the faucet body of suction port and air outlet respectively and forms with the cock core that is arranged in the faucet body by upper and lower.Be provided with the inner chamber of the band tapering that an end is big, an end is little in the faucet body, big end cap be set, be connected by bolt and Sealing between big end cap and the faucet body at the big end of inner chamber.At the inner chamber small end little end cap is set, the periphery of little end cap is connected with faucet body by Sealing, supporting shaft in the little end cap, and fixedly connected with an end of cock core in the inner of transmission shaft, and the other end extend out to outside the faucet body.Remove handle in the connection of the outer end of transmission shaft, act on by outside driving mechanism and remove, make transmission shaft drive cock core and rotate, thereby realize suction port, the switching of air outlet and the control of gas flow last.In order to guarantee the sealability between faucet body and the cock core, pass through to regulate bolt supported spring between gland and transmission shaft ladder table top in the outer end of transmission shaft, by regulating bolt, holddown spring is that the inner chamber of cock core in faucet body pulls to small end.Its shortcoming: 1, using scope: can only be used for the cock of less nominal diameter, be generally the following cock of nominal diameter Φ 70mm.2, manufacture difficulty is big, the especially machining accuracy of rotary motion pair centering and the grinding of sealing surface between faucet body 1 and the cock core 2.3, the gap between two rotary motion pairs is regulated by spring, and degree of regulation is poor, causes the rotary motion pair resistance big or sealability is bad, and especially sealability is even more important to the conveying of harmful gas.Chinese patent 200720047079.9 discloses a kind of gas tap, comprises faucet body and cock core, and cock core is a cone, and an end big at the cock core diameter is provided with transmission shaft, and rolling bearing is installed on the axle, and an end little at the cock core diameter is not provided with transmission shaft.This patent can solve the machining accuracy of rotary motion pair centering between faucet body and the cock core and the big problem of grinding difficulty of sealing surface, improve sealability, but its rotary motion pair resistance is greatly still bigger, especially for the major diameter cock, all the more so, because little end cap of faucet body and faucet body are as a whole, give casting process, inner chamber processing grinding and cock core installing and locating make troubles.
The model utility content
The technical problems to be solved in the utility model provides a kind of major diameter gas pipe line stopcock, can make the rotary motion pair resistance littler, and faucet body casting and inner chamber processing grinding and cock core installing and locating are more convenient.
For solving the problems of the technologies described above, the major diameter gas pipe line stopcock that the utility model provides, comprise that inner chamber is provided with the faucet body 1 of tapering, with the corresponding cock core 2 of inner chamber tapering, it is characterized in that, at big end of inner chamber and small end big end cap 6 and small end lid 19 are set respectively, the periphery of big end cap 6 and small end lid 19 is passed through seal ring respectively, bolt is connected with faucet body, described big end cap 6 and small end lid 19 are provided with mesopore, the big end of described cock core 2 and small end are provided with transmission shaft 29 and transmission shaft 30 respectively, transmission shaft 30 passes big end cap mesopore and extends to big end cap 6 outsides, transmission shaft 30 is by big-end bearing 15, big-end bearing lid 13 is fixed on the big end cap 6, transmission shaft 29 inserts small end and covers 19 mesopores, by little-end bearing 26, bearing cap 21 is fixed on the small end lid 19.
Further improvement of the utility model is: described big-end bearing 15 medial extremitys are limited in the annular stop step 31 of transmission shaft 30, big-end bearing 15 outside inner rings are spacing by setscrew nut 10, locking nut 11, outer ring, big-end bearing 15 outside is covered 13 spacing by big-end bearing, big-end bearing covers 13 outside threads and closely cooperates with big end cap 6 mesopore internal threads, the ring-shaped step of big end cap 6 arranged outside and mesopore concentric, big-end bearing covers 13 arranged outside and the corresponding flange of described ring-shaped step, and described flange circumferentially is fixed on the described ring-shaped step by screw 7.
Further improvement of the utility model is: described little-end bearing 26 medial extremitys are limited in the annular stop step 32 of transmission shaft 29, little-end bearing 26 outside inner rings are spacing by setscrew nut 27, locking nut 28, outer ring, little-end bearing 26 outside is spacing by bearing cap 21, little-end bearing covers 21 outside threads and small end and covers 19 mesopore internal threads and closely cooperate, small end covers the ring-shaped step of 19 arranged outside and mesopore concentric, little-end bearing covers 21 arranged outside and the corresponding flange of described ring-shaped step, and described flange circumferentially is fixed on the described ring-shaped step by screw 20.
Further improvement of the utility model is: between big end cap 6 and big-end bearing lid 13 O RunddichtringO 8,9 is set, between big-end bearing lid 13 and transmission shaft 30 O RunddichtringO 14 and Y shape Sealing 12 is set.
Further improvement of the utility model is: between small end lid 19 and little-end bearing lid 21 O RunddichtringO 22,23 is set, O RunddichtringO 25 and Y shape Sealing 24 are set between bearing cap 21 and transmission shaft 29.
Designing technique characteristics of the present utility model are as follows:
1, as shown in Figure 2, cock core 2 is installed in the inner chamber of faucet body 1 band tapering, finish Primary Location by the big small end of inner chamber, simultaneously on cock core 2 two ends transmission shafts, bearing 15,26 is installed, by apolegamy and the adjustment of bearing 15,26, play and faucet body 1, realize the final location of cock core 2 on faucet body 1 with cock core 2 matching gaps.
By above design: two rotary motion pairs that solved stopcock in and the big problem of kinematic pair resistance, also solved big specification stopcock casting and processing problems.
2, as shown in Figure 2, big end cap 6 is fixed on the faucet body 1 by elastic washer 4, screw 5, and is provided with gasket seal 3 at its junction plane place; Big-end bearing lid 13 is fixed on the big end cap 6 by screw 7, and be provided with O RunddichtringO 8,9 thereon and be used for static seal between big end cap 6 and the big-end bearing lid 13, O RunddichtringO 14 and Y shape Sealing 12, be used for cock core 2 rotating moving dot encapsulations, big-end bearing 15 inner rings adopt setscrew nut 10 and locking nut 11 assembly parties location.
3, as shown in Figure 2, small end lid 19 is to be fixed on the faucet body 1 by elastic washer 16, screw 17, and is provided with gasket seal 18 at its junction plane place; Little-end bearing lid 21 is to be fixed on the small end lid 19 by screw 20, and be provided with O RunddichtringO 22,23 thereon and be used for small end lid 19 and little-end bearing and cover static seal between 21, O RunddichtringO 25 and Y shape Sealing 24, be used for cock core 2 rotating moving dot encapsulations, little-end bearing 26 inner rings adopt setscrew nut 27 and locking nut 28 assembly parties location.
4, shown in Fig. 2,3, faucet body 1 main structure: matrix is a cylindrical body, empty coning inner chamber at cylindrical body center line periphery by cock core 2 relevant cone match sizes, design has E, F, three flanged (FLGD) gas inlet and outlet passages of G to the combined process pipe arrangement in the cylindrical body relevant position; Design has lubricated interface K on faucet body 1, is used for the manual or centralized lubrication of rotary motion pair between faucet body 1 and the cock core 2; On faucet body 1, be provided with and big end cap 6, small end lid 19 geometrical shape that matches and fit dimensions.
5, shown in Fig. 2,3, cock core 2 main structures: matrix is a cone, is provided with oil groove on the big small end of cone and faucet body inner chamber junction plane, and the rotation supporting surface that is used for cock core 2 is lubricated, and in cone cross section diameter direction by 90
0Lattice becomes M, N, three gas inlet and outlet passages of P, and three gas access ways connect mutually.On the cone longitudinal center line, be provided with transmission shaft, be used to install big-end bearing 15, little-end bearing 26 and big-end bearing lid 13, setscrew nut 10, locking nut 11, little-end bearing lid 21, setscrew nut 27, locking nut 28, being provided with section configuration in the outer end of big end transmission shaft simultaneously is foursquare transmission moving rod linkage structure.
6, by cock core 2 different working position in faucet body 1, the change of gas path and the cut-out function of air-flow have been realized.
The utility model working principle: in conjunction with Fig. 3:
1, in the existing working position of Fig. 3, faucet body E mouth communicates with cock core M mouth, cock core N mouth, faucet body G mouth.
2, turn clockwise 90 when cock core 2
0, faucet body F mouth communicates with cock core N mouth, cock core P mouth, faucet body G mouth.
3, turn clockwise 180 when cock core 2
0, faucet body F mouth communicates with cock core P mouth, cock core M mouth, faucet body G mouth, cock core N mouth, faucet body E mouth.
4, turn clockwise 360 when cock core 2
0, faucet body F mouth communicates with cock core M mouth, cock core P mouth, faucet body E mouth.
5, when cock core 2 during not at above-mentioned 4 working positions, faucet body E, F, G mouth all do not communicate with cock core M, N, P mouth.
By above-mentioned operation, the change of gas path and the cut-out function of air-flow can have been realized.
The utility model all is provided with transmission shaft at the big small end of cock core, transmission shaft is fixed on the faucet body by bearing, big or small end cap, the weight of cock core is shared by bearing, when rotating cock core, the frictional force of cock core and faucet body inner chamber is littler, therefore the rotary motion pair resistance is littler, rotates more flexible.In addition, the equal opening of the big small end of faucet body inner chamber, it is convenient to make casting and inner chamber process, and simultaneously, the location of cock core is aspect more also.
Description of drawings
Below in conjunction with accompanying drawing the utility model is elaborated.
Fig. 1: major diameter gas pipe line stopcock plan view.
Fig. 2: major diameter gas pipe line stopcock A-A sectional view.
Fig. 3: major diameter gas pipe line stopcock B-B sectional view.
Embodiment
The utility model is applied to the coking industry coke oven heating system, it has realized that coke-stove gas and coke oven, blast furnace mixed gas change the cut-out of gas path and gas in the coke oven heating system in pipe conveying procedure, and may extend into similar technical field of carrying as other gas pipelines of coke oven heating system.The utility model cock core 2 is installed in the inner chamber of faucet body 1 band tapering, finish Primary Location by the big small end of faucet body 1 inner chamber, rolling bearing 15,26 is installed on cock core 2 transmission shafts simultaneously, by apolegamy and the adjustment of rolling bearing 15,26, play and faucet body 1, realize the final location of cock core 2 on faucet body 1 with cock core 2 matching gaps.Two rotary motion pairs that solved stopcock by above design in and the big problem of kinematic pair resistance, also solved the problem that inconvenience is made in big specification cock.
Embodiment 1
As Fig. 1, shown in Figure 2, the utility model comprises that inner chamber is provided with the faucet body 1 of tapering, with the corresponding cock core 2 of inner chamber tapering, at big end of inner chamber and small end big end cap 6 and small end lid 19 are set respectively, the excircle of big end cap 6 and small end lid 19 is respectively by seal ring (3,18), screw (5,17), compression spring (4,16) be connected with faucet body, described big end cap 6 and small end lid 19 are provided with mesopore, the big end of described cock core 2 and small end are provided with transmission shaft 30 and transmission shaft 29 respectively, transmission shaft 30 passes big end cap mesopore and extends to big end cap 6 outsides, transmission shaft 30 is by big-end bearing 15, big-end bearing lid 13 is fixed on the big end cap 6, transmission shaft 29 inserts small end and covers 19 mesopores, by little-end bearing 26, little-end bearing lid 21 is fixed on the small end lid 19.
Embodiment 2
As shown in Figure 2, the utility model comprise inner chamber be provided with the faucet body 1 of tapering, with the corresponding cock core 2 of inner chamber tapering, at big end of inner chamber and small end big end cap 6 and small end lid 19 are set respectively, big end cap 6 is connected with faucet body by seal ring, bolt respectively with the excircle of small end lid 19, described big end cap 6 and small end lid 19 are provided with mesopore, the big end of described cock core 2 and small end are provided with transmission shaft 30 and transmission shaft 29 respectively, transmission shaft 30 passes big end cap mesopore and extends to big end cap 6 outsides, and it is foursquare transmission moving rod linkage structure that transmission shaft 30 outer ends are provided with section configuration.Transmission shaft 30 is fixed on the big end cap 6 by big-end bearing 15, bearing cap 13, and transmission shaft 29 inserts small end and covers 19 mesopores, is fixed on the small end lid 19 by bearing 26, bearing cap 21.Described big-end bearing 15 medial extremitys are limited in the annular stop step 31 of transmission shaft 30, big-end bearing 15 outside inner rings are spacing by setscrew nut 10, locking nut 11, outer ring, big-end bearing 15 outside is covered 13 spacing by big-end bearing, big-end bearing covers 13 outside threads and closely cooperates with big end cap 6 mesopore internal threads, the ring-shaped step of big end cap 6 arranged outside and mesopore concentric, big-end bearing covers 13 arranged outside and the corresponding flange of described ring-shaped step, and described flange circumferentially is fixed on the described ring-shaped step by screw 7.
Embodiment 3
The utility model comprises that inner chamber is provided with the faucet body 1 of tapering, with the corresponding cock core 2 of inner chamber tapering, at big end of inner chamber and small end big end cap 6 and small end lid 19 are set respectively, the excircle of big end cap 6 and small end lid 19 passes through seal ring respectively, bolt is connected with faucet body, described big end cap 6 and small end lid 19 are provided with mesopore, the big end of described cock core 2 and small end are provided with transmission shaft 30 and transmission shaft 29 respectively, transmission shaft 30 passes big end cap mesopore and extends to big end cap 6 outsides, transmission shaft 30 is by big-end bearing 15, bearing cap 13 is fixed on the big end cap 6, transmission shaft 29 inserts small end and covers 19 mesopores, by bearing 26, bearing cap 21 is fixed on the small end lid 19.Described little-end bearing 26 medial extremitys are limited in the annular stop step 32 of transmission shaft 29, little-end bearing 26 outside inner rings are spacing by setscrew nut 27, locking nut 28, outer ring, little-end bearing 26 outside is spacing by bearing cap 21, little-end bearing covers 21 outside threads and small end and covers 19 mesopore internal threads and closely cooperate, small end covers the ring-shaped step of 19 arranged outside and mesopore concentric, little-end bearing covers 21 arranged outside and the corresponding flange of described ring-shaped step, and described flange circumferentially is fixed on the described ring-shaped step by screw 20.
Embodiment 4
As shown in Figure 2, the utility model comprises that inner chamber is provided with the faucet body 1 of tapering, with the corresponding cock core 2 of inner chamber tapering, at big end of inner chamber and small end big end cap 6 and small end lid 19 are set respectively, the excircle of big end cap 6 and small end lid 19 passes through seal ring respectively, bolt is connected with faucet body, described big end cap 6 and small end lid 19 are provided with mesopore, the big end of described cock core 2 and small end are provided with transmission shaft 30 and transmission shaft 29 respectively, transmission shaft 30 passes big end cap mesopore and extends to big end cap 6 outsides, transmission shaft 30 is by big-end bearing 15, bearing cap 13 is fixed on the big end cap 6, transmission shaft 29 inserts small end and covers 19 mesopores, by bearing 26, bearing cap 21 is fixed on the small end lid 19.Described big-end bearing 15 medial extremitys are limited in the annular stop step 31 of transmission shaft 30, big-end bearing 15 outside inner rings are spacing by setscrew nut 10, locking nut 11, outer ring, big-end bearing 15 outside is covered 13 spacing by big-end bearing, big-end bearing covers 13 outside threads and closely cooperates with big end cap 6 mesopore internal threads, the ring-shaped step of big end cap 6 arranged outside and mesopore concentric, big-end bearing covers 13 arranged outside and the corresponding flange of described ring-shaped step, and described flange circumferentially is fixed on the described ring-shaped step by screw 7.Between big end cap 6 and big-end bearing lid 13, O RunddichtringO 8,9 is set, between big-end bearing lid 13 and transmission shaft 30, O RunddichtringO 14 and Y shape Sealing 12 is set.
The utility model comprises that inner chamber is provided with the faucet body 1 of tapering, with the corresponding cock core 2 of inner chamber tapering, at big end of inner chamber and small end big end cap 6 and small end lid 19 are set respectively, the excircle of big end cap 6 and small end lid 19 passes through seal ring respectively, bolt is connected with faucet body, described big end cap 6 and small end lid 19 are provided with mesopore, the big end of described cock core 2 and small end are provided with transmission shaft 30 and transmission shaft 29 respectively, transmission shaft 30 passes big end cap mesopore and extends to big end cap 6 outsides, transmission shaft 30 is by big-end bearing 15, bearing cap 13 is fixed on the big end cap 6, transmission shaft 29 inserts small end and covers 19 mesopores, by bearing 26, bearing cap 21 is fixed on the small end lid 19.Described little-end bearing 26 medial extremitys are limited in the annular stop step 32 of transmission shaft 29, little-end bearing 26 outside inner rings are spacing by setscrew nut 27, locking nut 28, outer ring, little-end bearing 26 outside is spacing by bearing cap 21, little-end bearing covers 21 outside threads and small end and covers 19 mesopore internal threads and closely cooperate, small end covers the ring-shaped step of 19 arranged outside and mesopore concentric, little-end bearing covers 21 arranged outside and the corresponding flange of described ring-shaped step, and described flange circumferentially is fixed on the described ring-shaped step by screw 20.Between small end lid 19 and little-end bearing lid 21, O RunddichtringO 22,23 is set, between little-end bearing lid 21 and transmission shaft 29, O RunddichtringO 25 and Y shape Sealing 24 is set.
Claims (5)
1. major diameter gas pipe line stopcock, comprise that inner chamber is provided with the faucet body of tapering (1), with the corresponding cock core of inner chamber tapering (2), it is characterized in that, at big end of inner chamber and small end big end cap (6) and little end cap (19) are set respectively, the periphery of big end cap (6) and little end cap (19) is passed through seal ring respectively, bolt is connected with faucet body, described big end cap (6) and little end cap (19) are provided with mesopore, the big end of described cock core (2) and small end are provided with transmission shaft (30) and transmission shaft (29) respectively, transmission shaft (30) passes big end cap mesopore and extends to big end cap (6) outside, transmission shaft (30) is by big-end bearing (15), big-end bearing lid (13) is fixed on the big end cap (6), transmission shaft (29) inserts little end cap (19) mesopore, by little-end bearing (26), little-end bearing lid (21) is fixed on the little end cap (19).
2. major diameter gas pipe line stopcock according to claim 1, it is characterized in that, described big-end bearing (15) medial extremity is limited in the annular stop step (31) of transmission shaft (30), big-end bearing (15) outside inner ring is by setscrew nut (10), locking nut (11) is spacing, outer ring, big-end bearing (15) outside is spacing by big-end bearing lid (13), big-end bearing lid (13) outside thread closely cooperates with big end cap (6) mesopore internal thread, the ring-shaped step of big end cap (6) arranged outside and mesopore concentric, big-end bearing lid (13) arranged outside and the corresponding flange of described ring-shaped step, described flange circumferentially is fixed on the described ring-shaped step by screw 7.
3. major diameter gas pipe line stopcock as claimed in claim 1 or 2, it is characterized in that, between big end cap (6) and big-end bearing lid (13), O RunddichtringO (8,9) is set, between big-end bearing lid (13) and transmission shaft (30), O RunddichtringO (14) and Y shape Sealing (12) is set.
4. major diameter gas pipe line stopcock according to claim 1, it is characterized in that, described little-end bearing (26) medial extremity is limited in the annular stop step (32) of transmission shaft (29), little-end bearing (26) outside inner ring is by setscrew nut (27), locking nut (28) is spacing, outer ring, little-end bearing (26) outside is spacing by little-end bearing lid (21), little-end bearing lid (21) outside thread and little end cap (19) mesopore internal thread closely cooperate, the ring-shaped step of little end cap (19) arranged outside and mesopore concentric, little-end bearing lid (21) arranged outside and the corresponding flange of described ring-shaped step, described flange circumferentially is fixed on the described ring-shaped step by screw (20).
5. as major diameter gas pipe line stopcock as described in claim 1 or 4, it is characterized in that, between little end cap (19) and little-end bearing lid (21), O RunddichtringO (22,23) is set, between little-end bearing lid (21) and transmission shaft (29), O RunddichtringO (25) and Y shape Sealing (24) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206289915U CN202023941U (en) | 2010-11-29 | 2010-11-29 | Plug cock valve for large diameter gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206289915U CN202023941U (en) | 2010-11-29 | 2010-11-29 | Plug cock valve for large diameter gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202023941U true CN202023941U (en) | 2011-11-02 |
Family
ID=44848891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206289915U Expired - Fee Related CN202023941U (en) | 2010-11-29 | 2010-11-29 | Plug cock valve for large diameter gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202023941U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696504A (en) * | 2020-12-21 | 2021-04-23 | 浙江伯特利科技股份有限公司 | Cone-shaped valve without middle cavity gap |
-
2010
- 2010-11-29 CN CN2010206289915U patent/CN202023941U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112696504A (en) * | 2020-12-21 | 2021-04-23 | 浙江伯特利科技股份有限公司 | Cone-shaped valve without middle cavity gap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111102 Termination date: 20171129 |