CN212273140U - Spherical sealing multi-way valve with pressure relief function - Google Patents
Spherical sealing multi-way valve with pressure relief function Download PDFInfo
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- CN212273140U CN212273140U CN202021159794.3U CN202021159794U CN212273140U CN 212273140 U CN212273140 U CN 212273140U CN 202021159794 U CN202021159794 U CN 202021159794U CN 212273140 U CN212273140 U CN 212273140U
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- pressure relief
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- 238000007789 sealing Methods 0.000 title claims description 48
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 description 22
- 239000007789 gas Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000002343 natural gas well Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
The utility model discloses a spherical seal multi-ported valve with pressure release function, which comprises a valve body, a valve core, a valve seat, the medium advances pipe and medium exit tube, the position that lies in between all two adjacent radial medium holes on the cylinder in case middle section is equipped with radial pressure release hole and axial pressure release hole respectively, the first end in each radial pressure release hole can communicate with the inner of the disk seat that corresponds, the second end in each radial pressure release hole communicates with the first end in the axial pressure release hole that corresponds, the second end in axial pressure release hole is located the surface of the cylinder in case middle section and the inner intercommunication of opening and medium exit tube. The utility model discloses a position that lies in between all adjacent two radial medium holes on the cylinder in case middle section sets up radial pressure release hole and axial pressure release hole respectively, and the upper reaches pipeline with the disk seat intercommunication can not produce the phenomenon of suppressing because of with medium exit tube intercommunication, has avoided the risk that leads to the incident because of upper reaches pipeline pressure is too big.
Description
Technical Field
The utility model relates to a spherical sealing multi-way valve especially relates to a spherical sealing multi-way valve with pressure release function.
Background
The multi-way valve is a rotary valve for controlling multi-way pipelines in a connecting way, and the basic structure of the multi-way valve is that a valve core is arranged in a valve body, and the valve core is rotated in a manual or electric mode to realize the on-off control of a plurality of channels.
The spool of the traditional multi-way valve is generally in a rotating arm structure, and the multi-way valve with the structure has the following defects: the valve seat is exposed in a medium for a long time and is a soft sealing structure, so that the valve seat is easy to damage; the valve seat sealing pretightening force needs to be adjusted every time, and special tools are needed for adjustment, so that production stop is caused; when the scraping ring on the rotating arm is used for cleaning the inner cavity wall, if the height is not well adjusted, the inner cavity wall cannot be scraped completely if the height is low, and if the height is high, the scraping ring is easy to scrape the sealing surface of the valve seat; the sealing surfaces of the rotating arm and the valve seat are narrow, and leakage is easy to occur if the positioning is not accurate. Generally, the rotary arm valve core of the traditional multi-way valve has the problems of poor sealing and poor durability.
In order to solve the above problems, the applicant has already applied for a utility model patent with patent number "ZL 201920947964.5", entitled "multichannel selective control device for fluid control", which is in operation, during the rotation of the valve core, the fluid can automatically clean the sealing surface of the valve core, thereby ensuring the continuity and reliability of the sealing between the valve core and the valve seat.
However, the above patent also has the following drawbacks: when the valve core rotates to enable the valve seat to be located between two medium holes of the valve core (the problem is inevitably caused when a channel corresponding to an oil-gas well needing to be measured is changed), the valve seat is sealed by the valve core, an outlet of a medium inlet pipe is sealed, and an upstream pipeline (namely a pipeline connected between the oil-gas well and the medium inlet pipe, wherein the oil-gas well refers to an oil well, a natural gas well or an oil-gas mixed well, and the same is used below) connected with the medium inlet pipe is easy to generate a pressure holding phenomenon, so that the risk of safety accidents caused by overlarge pressure exists; the through hole in the valve seat is a straight hole, fluid medium directly washes the sealing surface between the valve core and the valve seat after passing through the through hole of the valve seat, and the sealing surface is easy to corrode after long-term use, so that the sealing effect is reduced, and even the sealing is ineffective; the size of the sealing end of the valve seat is consistent with that of the medium hole of the valve core, the rotation precision of the valve core is required to be high, and the control difficulty is increased.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can avoid arousing the spherical seal multi-ported valve with pressure release function of incident because of suppressing pressure just in order to solve above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a spherical sealing multi-way valve with pressure relief function comprises a valve body, a valve core, a valve seat, a medium inlet pipe and a medium outlet pipe, wherein the valve core is arranged in the valve body in a round pipe shape, a plurality of valve body mounting holes are uniformly formed in the circumferential wall of the valve body, the inner ends of the medium inlet pipes are respectively arranged in a plurality of valve body mounting holes which are in one-to-one correspondence to the circumferential wall of the valve body, the middle section of the valve core is a cylinder, the outer peripheral surface of the cylinder is an outer convex spherical surface, a plurality of radial medium holes which are uniformly distributed in the circumferential direction and are in one-to-one correspondence to the valve body mounting holes are formed in the cylinder in the middle section of the valve core, the valve seat is respectively arranged in the valve body mounting holes, the outer end of each valve seat is respectively in sealing connection with the inner end of the corresponding medium inlet pipe, and the through, the inner end of each valve seat is connected with the outer peripheral surface of the cylinder in the middle section of the valve core in a sliding and sealing mode and can be communicated with the first end of the corresponding radial medium hole, and the second ends of the radial medium holes are communicated with the medium outlet pipe; the valve core is characterized in that a radial pressure relief hole and an axial pressure relief hole are respectively arranged at positions between every two adjacent radial medium holes on the cylinder in the middle section of the valve core, a first end of each radial pressure relief hole can be communicated with the corresponding inner end of the valve seat, a second end of each radial pressure relief hole is communicated with the corresponding first end of the corresponding axial pressure relief hole, and a second end of each axial pressure relief hole is positioned on the surface of the cylinder in the middle section of the valve core, is provided with an opening and is communicated with the inner end of the medium outlet pipe.
In the structure, the radial pressure relief holes and the axial pressure relief holes are arranged at positions between two adjacent radial medium holes, when the valve core rotates and the inner end of the valve seat is in surface contact with the valve core between two corresponding adjacent radial medium holes, the through hole of the valve seat can be communicated with the inner end of the medium outlet pipe through the radial pressure relief holes and the axial pressure relief holes, and an upstream pipeline communicated with the valve seat cannot generate a pressure-holding phenomenon because of being communicated with the medium outlet pipe.
Further, in order to reduce direct washing of a sealing surface between the valve core and the valve seat by a fluid medium, a middle section hole wall or an inner section hole wall close to the inner end of a through hole of the valve seat is a flow guide hole wall, the flow guide hole wall is conical, and the outside diameter of the conical shape is larger than the inside diameter. The guide hole wall is used for guiding the fluid medium to enable the fluid medium to have a tendency of flowing from the periphery to the center, so that the fluid medium is concentrated to the center of the radial medium hole as far as possible, and the purpose of reducing direct flushing of a sealing surface between the valve core and the valve seat is achieved.
Preferably, in order to achieve a good flow guiding effect and not affect the smooth flowing, an included angle between the flow guiding hole wall and the central axis of the flow guiding hole wall is 15-45 degrees.
Further, in order to reduce the requirement of the control precision of the rotation angle of the valve core, the diameter of the inner end sealing area of the valve seat is larger than that of the radial medium hole of the valve core. Therefore, even if the rotation angle of the valve core has an error of about 2 degrees, the sealing effect is still good, and the leakage problem does not exist.
Preferably, the diameter of the inner end sealing area of the valve seat is 5mm larger than that of the radial medium hole of the valve core.
Specifically, the medium outlet pipe comprises a first medium outlet pipe and a second medium outlet pipe, an axial center hole is arranged at the center of a cylinder at the middle section of the valve core, a plurality of axial peripheral holes are uniformly arranged on the cylinder at the middle section of the valve core around the axial central hole, the radial medium hole comprises a long radial medium hole with a longer length and a plurality of short radial medium holes with a shorter length, the second end of the radial medium long hole is communicated with the first end of the axial center hole, the second end of the axial center hole is positioned on the surface of the cylinder in the middle section of the valve core and is opened and communicated with the inner end of the first medium outlet pipe, the second ends of the radial medium short holes are respectively communicated with the first ends of the axial peripheral holes which correspond to each other one by one, and the second ends of the axial peripheral holes are respectively positioned on the surface of the cylinder in the middle section of the valve core and are opened and communicated with the inner end of the second medium outlet pipe.
Specifically, the number of the medium inlet pipe, the number of the radial medium holes, the number of the radial pressure relief holes and the number of the axial pressure relief holes are 8, and the number of the radial medium short holes is 7.
The beneficial effects of the utility model reside in that:
the utility model discloses a position that lies in between all adjacent two radial medium holes on the cylinder in case middle section sets up radial pressure release hole and axial pressure release hole respectively, and the through-hole of valve seat can be through radial pressure release hole and axial pressure release hole and the inner of medium exit tube communicates, and the upper reaches pipeline that communicates with the valve seat can not produce the phenomenon of suppressing because of communicating with the medium exit tube, has avoided the risk that leads to the incident because upper reaches pipeline pressure is too big; the middle section or the inner section of the through hole of the valve seat is provided with the flow guide hole wall to guide the fluid medium, so that the fluid medium has the tendency of flowing from the periphery to the center, the fluid medium is concentrated to the center of the radial medium hole as far as possible, and the aims of reducing the direct scouring of the sealing surface between the valve core and the valve seat and prolonging the sealing service life are fulfilled; by designing the diameter of the inner end sealing area of the valve seat to be larger than the diameter of the radial medium hole of the valve core, even if a certain error (about +/-2 degrees) exists in the rotation angle of the valve core, the sealing effect is still good, the leakage problem does not exist, the requirement on the control precision of the rotation angle of the valve core is reduced, and the valve core is convenient to apply.
Drawings
Fig. 1 is a front sectional view of the spherical sealing multi-way valve with pressure relief function according to the present invention;
FIG. 2 is a sectional view A-A of FIG. 1;
fig. 3 is a top cross-sectional view of a cylinder at the middle section of a valve core of the spherical sealing multi-way valve with pressure relief function according to the present invention, which has the same angle as fig. 2;
FIG. 4 is a cross-sectional view B-B of FIG. 3;
fig. 5 is a cross-sectional view of the valve seat of the spherical sealing multi-way valve with pressure relief function of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1-5, the sealed multi-way valve of sphere with pressure release function includes that valve body 4, case 3, disk seat 7, medium advance pipe 9 and medium exit tube, and in case 3 arranged pipe-shaped valve body 4 in, evenly be equipped with a plurality of valve body mounting holes (not marked in the figure) on valve body 4's the circumference wall, a plurality of mediums advance the inner of pipe 9 and install a plurality of one-to-one on valve body 4's circumference wall respectively in the valve body mounting hole, case 3's middle section was cylinder and the peripheral surface of this cylinder be evagination spherical surface 5, is equipped with on the cylinder in case 3 middle section at circumferencial direction evenly distributed and with a plurality of radial medium hole (see radial medium slot hole 6 and radial medium short hole 10 below), a plurality of install disk seat 7 in the valve body mounting hole respectively, disk seat 7 is equipped with the through-hole, and the outer end that each disk seat 7 entered pipe 9's inner sealing connection and disk seat 7's through-hole is advanced The inner end of each valve seat 7 is respectively connected with the outer peripheral surface of the cylinder at the middle section of the valve core 3 in a sliding and sealing manner and can be communicated with the first end of the corresponding radial medium hole, and the second ends of the radial medium holes are communicated with the medium outlet pipe (see a first medium outlet pipe 14 and a second medium outlet pipe 16 below); radial pressure relief holes 22 and axial pressure relief holes 21 are respectively formed in positions, located between all adjacent two radial medium holes, on the cylinder in the middle section of the valve core 3, a first end of each radial pressure relief hole 10 can be communicated with the inner end of the corresponding valve seat 7, a second end of each radial pressure relief hole 22 is communicated with the first end of the corresponding axial pressure relief hole 21, and a second end of each axial pressure relief hole 21 is located on the surface of the cylinder in the middle section of the valve core 3, is opened and is communicated with the inner ends of the medium outlet pipes. Description of the drawings: the axial direction refers to the axial direction of the valve body 4 and the valve body 3 (the axial direction of the valve body 4 and the valve body 3 is the same), and the radial direction refers to the radial direction of the valve body 4 and the valve body 3.
Fig. 1 also shows a valve rod 1, a valve cover 2, a first connecting pipe 13, a second connecting pipe 15, a bottom cover 18, a blow-down valve 19 and a base 20, wherein the upper end of the valve rod 1 is connected with a driving device (such as an electric actuator or a handle like a servo motor), the lower end of the valve rod 1 passes through the valve cover 2 and then is connected with one end (the upper end in the figure) of the valve core 3, the valve cover 2 is installed at the end of the valve body 4, two ends of the first connecting pipe 13 are respectively connected with the other end (the lower end in the figure) of the valve core 3 and a medium outlet pipe (hereinafter, referred to as a first medium outlet pipe 14), one end (the upper end in the figure) of the second connecting pipe 15 is connected with the valve body, the other end (the lower end in the figure) of the second connecting pipe 15 is a connecting end 17 with a reduced inner diameter, the bottom cover 18 is installed on the connecting end 17, the blow-down valve 19, the other medium outlet pipe (hereinafter, the second medium outlet pipe 16) is connected to the second connection pipe 15 in communication, and these structures are conventional adaptive structures.
As shown in fig. 1-5, when in use, the outer ends of a plurality of medium inlet pipes 9 are communicated with a plurality of oil and gas wells, fluid medium (oil, natural gas or oil and gas mixture) in the oil and gas wells enters the valve body 4 through the medium inlet pipes 9, the valve core 3 is controlled to rotate by the driving device, the fluid medium in different oil and gas wells is distributed, that is, one path of medium is distributed to one medium outlet pipe for metering, and other paths of medium are distributed to the other medium outlet pipe for production. In the rotation process of the valve core 3, when the valve seat 7 is in butt joint with the radial medium hole, the fluid medium can be discharged from the medium outlet pipe, and the problem of upstream pipeline pressure building is solved; however, when valve seat 7 just is located the position between two adjacent radial medium holes, if there is not the pressure release hole, the inner of valve seat 7 will be sealed, and the upper reaches pipeline just has the risk that suppresses pressure and leads to the incident, the utility model discloses because designed radial pressure release hole 22 and axial pressure release hole 21, can communicate oil gas well and medium exit tube, so the upper reaches pipeline just does not have the risk that suppresses pressure and lead to the incident.
As shown in fig. 1 to 5, a plurality of more optimized specific structures are disclosed below, and the more optimized technical solution can be formed by combining the above structures with one or more of the following structures in an overlapping manner according to actual needs.
In order to reduce the direct scouring of the fluid medium on the sealing surface between the valve core 3 and the valve seat 7, the middle section hole wall or the inner section hole wall close to the inner end of the through hole of the valve seat 7 is a flow guide hole wall 8, the flow guide hole wall 8 is conical, and the outside diameter of the conical shape is larger than the inside diameter. When the fluid medium flows through the valve seat 7, the flow guide hole wall 8 guides the fluid medium to enable the fluid medium to have a tendency of flowing from the periphery to the center, so that the fluid medium is concentrated to the center of the radial medium hole as far as possible, and the purpose of reducing direct flushing of a sealing surface between the valve core 3 and the valve seat 7 is achieved. Fig. 5 also shows a relief groove 23 provided on the inner wall of the valve seat 7, which is of conventional construction.
In order to achieve a good flow guiding effect and not affect the smooth flow, the included angle between the flow guiding hole wall 8 and the central axis thereof is 15-45 degrees, and more preferably 30 degrees.
In order to reduce the requirement of the rotation angle control precision of the valve core 3, the diameter of the inner end sealing area of the valve seat 7 is larger than the diameter of the radial medium hole of the valve core 3, and is preferably larger than 5 mm. When the valve core 3 is applied, even if the rotation angle of the valve core 3 has an error of about 2 degrees, the sealing effect is still good, and the leakage problem does not exist.
The medium outlet pipe comprises a first medium outlet pipe 14 and a second medium outlet pipe 16, an axial center hole 12 is arranged at the center of the cylinder at the middle section of the valve core 3, a plurality of axial peripheral holes 11 are uniformly arranged on the cylinder at the middle section of the valve core 3 around the axial center hole 12, the radial medium holes comprise a radial medium long hole 6 with a long length and a plurality of radial medium short holes 10 with a short length, the second end of the radial medium long hole 6 is communicated with the first end of an axial center hole 12, the second end of the axial center hole 12 is positioned on the surface of the cylinder at the middle section of the valve core 3 and is opened and is communicated with the inner end of a first medium outlet pipe 14, the second ends of the radial medium short holes 10 are respectively communicated with the first ends of a plurality of axial peripheral holes 11 in one-to-one correspondence, and the second ends of the axial peripheral holes 11 are respectively positioned on the surface of the cylinder at the middle section of the valve core 3 and are opened and are communicated with the inner end of a second medium outlet pipe 16. When the metering valve is applied, the first medium outlet pipe 14 is connected with metering equipment, the second medium outlet pipe 16 is connected with production equipment, the valve core 3 is rotated until the valve seat 7 corresponding to the oil-gas well needing to be metered is butted with the radial medium long hole 6, and the valve seats 7 corresponding to other oil-gas wells are butted with the radial medium short holes 10, so that the fluid medium produced by the oil-gas well needing to be metered is sent to the metering equipment to realize metering, and the fluid medium produced by other oil-gas wells is sent to the production equipment to realize production; when the fluid medium of another oil and gas well needs to be metered, the valve core 3 is rotated again, and the metering can be realized by a similar method.
The number of the medium inlet pipe 9, the number of the radial medium holes, the number of the radial pressure relief holes 22 and the number of the axial pressure relief holes 21 are 8, and the number of the radial medium short holes 10 is 7.
The above-mentioned more concrete structure that the multi-way valve does not describe is not the innovation of the utility model discloses, can refer to the utility model patent of patent number "ZL 201920947964.5", the name "be used for the multichannel selective control device of fluid control", the multichannel selective control device of this patent is the product of same type with the multi-way valve of this application, the utility model discloses it is to carry out the improvement on this patent basis.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.
Claims (7)
1. A spherical sealing multi-way valve with pressure relief function comprises a valve body, a valve core, a valve seat, a medium inlet pipe and a medium outlet pipe, wherein the valve core is arranged in the valve body in a round pipe shape, a plurality of valve body mounting holes are uniformly formed in the circumferential wall of the valve body, the inner ends of the medium inlet pipes are respectively arranged in a plurality of valve body mounting holes which are in one-to-one correspondence to the circumferential wall of the valve body, the middle section of the valve core is a cylinder, the outer peripheral surface of the cylinder is an outer convex spherical surface, a plurality of radial medium holes which are uniformly distributed in the circumferential direction and are in one-to-one correspondence to the valve body mounting holes are formed in the cylinder in the middle section of the valve core, the valve seat is respectively arranged in the valve body mounting holes, the outer end of each valve seat is respectively in sealing connection with the inner end of the corresponding medium inlet pipe, and the through, the inner end of each valve seat is connected with the outer peripheral surface of the cylinder in the middle section of the valve core in a sliding and sealing mode and can be communicated with the first end of the corresponding radial medium hole, and the second ends of the radial medium holes are communicated with the medium outlet pipe; the method is characterized in that: the valve core is characterized in that a radial pressure relief hole and an axial pressure relief hole are respectively arranged at positions between every two adjacent radial medium holes on the cylinder in the middle section of the valve core, a first end of each radial pressure relief hole can be communicated with the corresponding inner end of the valve seat, a second end of each radial pressure relief hole is communicated with the corresponding first end of the corresponding axial pressure relief hole, and a second end of each axial pressure relief hole is positioned on the surface of the cylinder in the middle section of the valve core, is provided with an opening and is communicated with the inner end of the medium outlet pipe.
2. The spherical sealing multi-way valve with pressure relief function according to claim 1, characterized in that: the middle section hole wall or the inner section hole wall close to the inner end of the through hole of the valve seat is a flow guide hole wall, the flow guide hole wall is conical, and the outside diameter of the conical shape is larger than the inside diameter.
3. The spherical sealing multi-way valve with pressure relief function according to claim 2, characterized in that: the included angle between the flow guide hole wall and the central axis of the flow guide hole wall is 15-45 degrees.
4. The spherical sealing multi-way valve with pressure relief function according to claim 1, characterized in that: the diameter of the inner end sealing area of the valve seat is larger than that of the radial medium hole of the valve core.
5. The spherical sealing multi-way valve with pressure relief function according to claim 4, characterized in that: the diameter of the inner end sealing area of the valve seat is 5mm larger than that of the radial medium hole of the valve core.
6. A spherical sealing multi-way valve with pressure relief function according to any of claims 1-5, characterized in that: the medium outlet pipe comprises a first medium outlet pipe and a second medium outlet pipe, an axial center hole is arranged at the center of the cylinder at the middle section of the valve core, a plurality of axial peripheral holes are uniformly arranged on the cylinder at the middle section of the valve core around the axial central hole, the radial medium hole comprises a long radial medium hole with a longer length and a plurality of short radial medium holes with a shorter length, the second end of the radial medium long hole is communicated with the first end of the axial center hole, the second end of the axial center hole is positioned on the surface of the cylinder in the middle section of the valve core and is opened and communicated with the inner end of the first medium outlet pipe, the second ends of the radial medium short holes are respectively communicated with the first ends of the axial peripheral holes which correspond to each other one by one, and the second ends of the axial peripheral holes are respectively positioned on the surface of the cylinder in the middle section of the valve core and are opened and communicated with the inner end of the second medium outlet pipe.
7. The spherical sealing multi-way valve with pressure relief function according to claim 6, wherein: the number of the medium inlet pipe, the number of the radial medium holes, the number of the radial pressure relief holes and the number of the axial pressure relief holes are 8, and the number of the radial medium short holes is 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021159794.3U CN212273140U (en) | 2020-06-22 | 2020-06-22 | Spherical sealing multi-way valve with pressure relief function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021159794.3U CN212273140U (en) | 2020-06-22 | 2020-06-22 | Spherical sealing multi-way valve with pressure relief function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212273140U true CN212273140U (en) | 2021-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021159794.3U Expired - Fee Related CN212273140U (en) | 2020-06-22 | 2020-06-22 | Spherical sealing multi-way valve with pressure relief function |
Country Status (1)
| Country | Link |
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| CN (1) | CN212273140U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609175A (en) * | 2020-06-22 | 2020-09-01 | 成都英派尔新能源科技有限公司 | Spherical sealing multi-way valve with pressure relief function |
| WO2022234398A1 (en) * | 2021-05-03 | 2022-11-10 | Asp Global Manufacturing Gmbh | Rotary fluidic distributor |
-
2020
- 2020-06-22 CN CN202021159794.3U patent/CN212273140U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111609175A (en) * | 2020-06-22 | 2020-09-01 | 成都英派尔新能源科技有限公司 | Spherical sealing multi-way valve with pressure relief function |
| CN111609175B (en) * | 2020-06-22 | 2024-06-04 | 成都英派尔新能源科技有限公司 | Spherical sealing multi-way valve with pressure relief function |
| WO2022234398A1 (en) * | 2021-05-03 | 2022-11-10 | Asp Global Manufacturing Gmbh | Rotary fluidic distributor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |