CN216588833U - Anti-surge blow-off valve for gas turbine system - Google Patents
Anti-surge blow-off valve for gas turbine system Download PDFInfo
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- CN216588833U CN216588833U CN202021786030.7U CN202021786030U CN216588833U CN 216588833 U CN216588833 U CN 216588833U CN 202021786030 U CN202021786030 U CN 202021786030U CN 216588833 U CN216588833 U CN 216588833U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The utility model provides a combustion engine system is with preventing breathing heavily blast gate, includes valve body, valve rod, butterfly plate, support, packing, the support mounting is in the one end of valve body, and support and valve body all set up the hole that supplies the valve rod installation, form the valve pocket in the valve body, and the butterfly plate is installed and is connected with the valve rod in the valve pocket, be connected through the parallel key between butterfly plate and the valve body, first position sleeve is installed to spacing between the inner wall of the valve body of one side that butterfly plate one end and correspond, and spacing the installing of second position sleeve between the inner wall of the valve body of the other end of butterfly plate and one side that corresponds, first position sleeve and second position sleeve all suit are on the valve rod, and first position sleeve, second position sleeve are spacing to the removal of butterfly plate along the valve rod axis. The surge-proof blow-off valve of the gas turbine system avoids the problem that parts fall off due to violent shaking of the valve body in a valve pipeline in the prior art, and is high in use safety.
Description
Technical Field
The utility model relates to the field of gas systems, in particular to an anti-surge blow-off valve for a combustion engine system.
Background
The turbocharger of the internal combustion engine consists of two main parts, namely a turbine and a gas compressor, wherein the turbine rotates under the impact of high-temperature and high-pressure gas flow to drive the gas compressor to do work, so that gas entering the gas compressor is compressed. The compressed gas enters downstream to do work.
Surge is one of the common failures of a turbocharger device, and is a vibration under an abnormal condition that occurs when the flow rate of a turbine compressor is reduced to a certain degree. When the flow of gas entering the compressor is low, the pressure of a downstream pipeline is larger than the outlet pressure of the compressor, and the gas flows back into the compressor until the outlet pressure is higher than the pressure of the downstream pipeline, so that the surge process is ended. To avoid or solve surge, there is a need for a surge-proof blow-off valve for a combustion engine system.
Disclosure of Invention
In view of the above, the present invention provides an anti-surge bleed valve for a combustion engine system.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a combustion engine system is with preventing breathing heavily blast gate, includes valve body, valve rod, butterfly plate, support, packing, the support mounting is in the one end of valve body, and support and valve body all set up the hole that supplies the valve rod installation, form the valve pocket in the valve body, and the butterfly plate is installed and is connected with the valve rod in the valve pocket, be connected through the parallel key between butterfly plate and the valve body, first position sleeve is installed to spacing between the inner wall of the valve body of one side that butterfly plate one end and correspond, and spacing the installing of second position sleeve between the inner wall of the valve body of the other end of butterfly plate and one side that corresponds, first position sleeve and second position sleeve all suit are on the valve rod, and first position sleeve, second position sleeve are spacing to the removal of butterfly plate along the valve rod axis.
The preferred, the valve rod is vertical to be installed in the valve body, and first position sleeve and the coaxial setting of second position sleeve, the butterfly plate includes the linking arm that two upper and lower intervals set up, the linking arm all sets up the valve rod mounting hole, all sets up the keyway in every valve rod mounting hole, the parallel key is installed and is connected the valve rod and the linking arm that corresponds in the keyway.
Preferably, the periphery of the butterfly plate forms a special-shaped ring surface, and the track of the special-shaped ring surface is composed of at least one step surface and at least one conical surface.
Preferably, form the annular between butterfly plate and the valve body, install the sealing washer in the annular, the clamp plate is installed to the valve body in the position that corresponds this annular, the sealing washer is spacing in the annular, valve body inner wall, sealing washer, clamp plate cooperate jointly to form the spacing face of a coniform, the butterfly plate periphery forms the guide surface of coniform in the position that corresponds this spacing face.
Preferably, the taper of the limiting surface is the same as that of the guide surface, the caliber of the cone formed by the limiting surface is reduced from the valve rod to one side of the pressing plate, and the caliber of the cone formed by the guide surface is reduced from the valve rod to one side of the pressing plate.
Preferably, the special-shaped ring surface comprises two continuously arranged step surfaces and a conical surface connected to the tail ends of the two continuously arranged step surfaces, and the section of each step surface is perpendicular to the valve rod.
Preferably, the valve body forms valve body sealing connection parts which respectively protrude towards the first positioning sleeve and the second positioning sleeve at positions which respectively correspond to the first positioning sleeve and the second positioning sleeve, a positioning groove is formed between the valve rod and the butterfly plate, and the axial direction and the orientation of the first positioning sleeve and the second positioning sleeve are limited in the valve body sealing connection part and the positioning groove.
Preferably, the upper part and the lower part of the valve body are respectively sealed by an upper valve body cover plate and a lower valve body cover plate, the upper valve body cover plate is provided with a through hole, the support is fixedly arranged at the upper end of the upper valve body cover plate, the top of the valve rod penetrates through the through hole and extends out of the support to be connected with an external power source, a packing cavity is formed between the valve rod and the valve body, packing is filled in the packing cavity, a packing gland is arranged at the upper part of the packing cavity, and the upper packing gland is connected with the upper valve body cover plate of the packing gland.
The utility model has the beneficial effects that: the anti-surge blow-off valve of the gas turbine system avoids the problem of part falling caused by violent shaking of the valve body in the valve pipeline in the prior art, and has high use safety; the butterfly plate is matched with the flat key, the first positioning sleeve and the second positioning sleeve, so that the torsion abrasion problem of the matching position of the flat key and the butterfly plate is reduced, the axial stress and the radial stress between the butterfly plate and the flat key are compensated and decomposed, the crushing and abrasion of a working surface are avoided, the frequency of shutdown maintenance and replacement is reduced, and the butterfly plate is more suitable for high-temperature and high-pressure occasions required by a gas turbine system.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along the line C-C in FIG. 1;
FIG. 3 is a cross-sectional view taken along line D-D of FIG. 1;
FIG. 4 is an enlarged view taken at A in FIG. 2;
fig. 5 is an enlarged view of fig. 2 at B.
Detailed Description
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The utility model provides the following technical scheme:
as shown in attached figures 1-5, the utility model discloses an anti-surge blow-off valve for a combustion engine system, which comprises a valve body 1, a valve rod 2, a butterfly plate 3, a support 4 and a filler 5, wherein openings are arranged at two sides of the valve body 1, and a channel is formed between the two openings. In actual use, one of the openings is used as a connecting port to be connected with a pipeline of the combustion engine. In the present embodiment, the connection port on the left side is connected to the engine pipe in the state shown in fig. 1 as an example. Support 4 installs in the one end of valve body 1, and support 4 all sets up the hole that supplies valve rod 2 to install with valve body 1, forms the valve pocket in the valve body 1, and butterfly plate 3 is installed and is connected with valve rod 2 in the valve pocket, be connected through parallel key 23 between butterfly plate 3 and the valve body 1, spacing installing first position sleeve 6 between the inner wall of the valve body 1 of 3 one end of butterfly plate and the one side that corresponds, spacing installing second position sleeve 7 between the inner wall of the valve body 1 of the other end of butterfly plate 3 and the one side that corresponds, first position sleeve 6 and the equal suit of second position sleeve 7 are on valve rod 2, and first position sleeve 6, second position sleeve 7 are spacing to the removal of butterfly plate 3 along valve rod 2 axes. In the utility model, the flat key 23 connection is used for replacing the fastener connection of screws, bolts and the like in the prior art, and the valve body 1, the first positioning sleeve 6 and the second positioning sleeve 7 are used for limiting the axial displacement of the connection in a matching way. The surge-proof blow-off valve for the gas turbine system avoids the problem that parts fall off due to violent shaking of the valve body 1 in a pipeline of the valve body 1 in the prior art, and is high in use safety.
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:
in the present embodiment, as shown in fig. 1, the valve rod 2 is vertically installed in the valve body 1 as an example, and the installation direction of the valve rod 2 is not suitable for practical implementation, which limits the application of the present invention. The valve body 1 is sealed with a valve body lower cover plate 10 from top to bottom through a valve body upper cover plate 9, the valve body upper cover plate 9 is provided with a through hole, the support 4 is fixedly installed at the upper end of the valve body upper cover plate 9, the top of the valve rod 2 penetrates through the through hole and extends out of the support 4 to be connected with an external power source, a packing cavity 11 is formed between the valve rod 2 and the valve body 1, a packing 5 is arranged in the packing cavity 11, a packing gland 12 is arranged on the upper portion of the packing cavity 11, and the packing gland 12 is connected with the valve body upper cover plate 9. First position sleeve 6 sets up with the second position sleeve 7 is coaxial, butterfly plate 3 includes the linking arm 8 that two upper and lower intervals set up, linking arm 8 all sets up valve rod mounting hole 13, all sets up the keyway in every valve rod mounting hole 13 (not shown), the linking arm 8 that flat key 23 installed in the keyway connect valve rod 2 and correspond. Specifically, the first positioning sleeve 6 is supported between the inner wall of the valve body 1 and the connecting arm 8 located above, and the second positioning sleeve 7 is supported between the inner wall of the valve body 1 and the connecting arm 8 located below. The flat key 23 can be selected from a common flat key, a thin flat key and a guide flat key, and the guide flat key is preferably selected under the working condition required by the application.
As shown in fig. 2, the outer periphery of the butterfly plate 3 forms a special-shaped ring surface 15, and the track of the special-shaped ring surface 15 is composed of at least one stepped surface 16 and at least one conical surface 17. The taper of the limiting surface is the same as that of the guide surface, the caliber of the cone formed by the limiting surface is reduced from the valve rod 2 to the pressing plate 18, and the caliber of the cone formed by the guide surface is reduced from the valve rod 2 to the pressing plate 18. In the present embodiment, an acute angle formed by the taper of the limiting surface and the guide surface with the horizontal direction in the illustrated state is 30 °, and in specific implementation, the angle can be adjusted according to the size of the diameter of the butterfly plate 3, and when the diameter of the butterfly plate 3 is larger, the taper is smaller. Generally, the acute angle range is optimally selected from 30 ° to 45 °. The step face 16 makes the stress between parallel key 23 and the butterfly plate 3 release to the butterfly plate 3, reduce the stress concentration wearing and tearing of parallel key 23 and the cooperation department of butterfly plate 3, still can ensure butterfly plate 3 along axial and radial cooperation degree after long-term the use, the required high sealing performance of combustion engine system has both been guaranteed, the life of effectual improvement valve again, avoid frequent shut down to overhaul, and the first position sleeve 6 and the second position sleeve 7 of both sides assist the realization about the spacing that the structural design of this kind of form formed, when actual maintenance, need not to dismantle the valve from the pipeline, directly dismantle apron 10 under valve body upper cover plate 9 and the valve body and can carry out the change and the maintenance of spare part, the line dismouting has been realized, and easy operation is convenient.
Specifically, as shown in fig. 2, form annular 19 between butterfly plate 3 and the valve body 1, install sealing washer 20 in the annular 19, valve body 1 installs clamp plate 18 in the position that corresponds this annular 19, clamp plate 18 is spacing in annular 19 with sealing washer 20, valve body 1 inner wall, sealing washer 20, clamp plate 18 cooperate jointly to form a coniform spacing face, butterfly plate 3 periphery forms the coniform guide surface in the position that corresponds this spacing face.
Referring to fig. 2, the profiled ring surface 15 includes two continuously arranged step surfaces 21, and a conical surface 17 connected to the ends of the two continuously arranged step surfaces 21, and the cross section of each step surface 21 is perpendicular to the valve rod 2.
First position sleeve 6 and second position sleeve 7 can directly fix a position with corresponding linking arm 8 through valve body 1, in addition, can also supplementary following structure of setting up: the valve body 1 forms towards the convex valve body sealing connection part of first position sleeve 6 and second position sleeve 7 respectively corresponding to the position of first position sleeve 6, second position sleeve 7 respectively, form constant head tank 22 between valve rod 2 and the butterfly plate 3, the axial and the orientation of first position sleeve 6 and second position sleeve 7 are spacing in valve body 1 sealing connection part and constant head tank 22. So arranged, it helps to form a more stable connection limit in the radial direction.
Through the above description of the present invention, the matching of the butterfly plate 3 with the flat key 23, the first positioning sleeve 6 and the second positioning sleeve 7 reduces the torsion abrasion problem at the matching position of the flat key 23 and the butterfly plate 3, compensates and decomposes the axial stress and the radial stress between the butterfly plate 3 and the flat key 23, avoids the crushing and abrasion of the working surface, reduces the frequency of shutdown maintenance and replacement, and is more suitable for high temperature and high pressure occasions required by a combustion engine system.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The utility model provides a combustion engine system is with preventing breathing heavily blast gate, includes valve body, valve rod, butterfly plate, support, packing, the support mounting is in the one end of valve body, and the support all sets up the hole that supplies the valve rod installation with the valve body, forms the valve pocket in the valve body, and the butterfly plate is installed and is connected its characterized in that with the valve rod in the valve pocket: the butterfly plate is connected with the valve body through a flat key, a first locating sleeve is arranged between one end of the butterfly plate and the inner wall of the valve body on one corresponding side in a limiting mode, a second locating sleeve is arranged between the other end of the butterfly plate and the inner wall of the valve body on one corresponding side in a limiting mode, the first locating sleeve and the second locating sleeve are sleeved on the valve rod in a sleeving mode, and the first locating sleeve and the second locating sleeve are limited in moving of the butterfly plate along the axis of the valve rod.
2. The surge-proof bleed valve for a combustion engine system as defined in claim 1, wherein: the valve rod is vertically installed in the valve body, and first position sleeve and the coaxial setting of second position sleeve, the butterfly plate includes the linking arm that two upper and lower intervals set up, the linking arm all sets up the valve rod mounting hole, all sets up the keyway in every valve rod mounting hole, the linking arm of connecting valve rod and corresponding in the keyway is installed to the parallel key.
3. The surge-proof bleed valve for a combustion engine system according to claim 1 or 2, wherein: the periphery of the butterfly plate forms a special-shaped ring surface, and the track of the special-shaped ring surface is composed of at least one step surface and at least one conical surface.
4. The surge-proof bleed valve for a combustion engine system as defined in claim 3, wherein: form the annular between butterfly plate and the valve body, install the sealing washer in the annular, the clamp plate is installed to the position that the valve body corresponds this annular, the sealing washer is spacing in the annular, valve body inner wall, sealing washer, clamp plate cooperate jointly to form the spacing face of a coniform, the butterfly plate periphery forms the guide surface of coniform in the position that corresponds this spacing face.
5. The surge-proof bleed valve for a combustion engine system as defined in claim 3, wherein: the taper of the limiting surface is the same as that of the guide surface, the caliber of a cone formed by the limiting surface is reduced from the valve rod to the pressure plate side, and the caliber of a cone formed by the guide surface is reduced from the valve rod to the pressure plate side.
6. The surge-proof bleed valve for a combustion engine system according to claim 4 or 5, wherein: the special-shaped ring surface comprises two continuously arranged step surfaces and a conical surface connected to the tail ends of the two continuously arranged step surfaces, and the cross section of each step surface is perpendicular to the valve rod.
7. The surge-proof bleed valve for a combustion engine system according to claim 1 or 2, wherein: the valve body is respectively corresponding to the positions of the first positioning sleeve and the second positioning sleeve to form valve body sealing connection parts protruding towards the first positioning sleeve and the second positioning sleeve, a positioning groove is formed between the valve rod and the butterfly plate, and the axial direction and the orientation of the first positioning sleeve and the second positioning sleeve are limited in the valve body sealing connection parts and the positioning groove.
8. The surge-proof bleed valve for a combustion engine system as defined in claim 7, wherein: the valve body is sealed through a valve body upper cover plate and a valve body lower cover plate from top to bottom respectively, the valve body upper cover plate is provided with a through hole, the support is fixedly installed at the upper end of the valve body upper cover plate, the top of the valve rod penetrates through the through hole and extends out of the support to be connected with an external power source, a packing cavity is formed between the valve rod and the valve body, packing is filled in the packing cavity, a packing gland is arranged on the upper portion of the packing cavity, and the packing gland is connected with the valve body upper cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021786030.7U CN216588833U (en) | 2020-08-24 | 2020-08-24 | Anti-surge blow-off valve for gas turbine system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021786030.7U CN216588833U (en) | 2020-08-24 | 2020-08-24 | Anti-surge blow-off valve for gas turbine system |
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| Publication Number | Publication Date |
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| CN216588833U true CN216588833U (en) | 2022-05-24 |
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| CN202021786030.7U Active CN216588833U (en) | 2020-08-24 | 2020-08-24 | Anti-surge blow-off valve for gas turbine system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081655A (en) * | 2020-08-24 | 2020-12-15 | 江南阀门有限公司 | Anti-surge blow-off valve for gas turbine system |
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- 2020-08-24 CN CN202021786030.7U patent/CN216588833U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081655A (en) * | 2020-08-24 | 2020-12-15 | 江南阀门有限公司 | Anti-surge blow-off valve for gas turbine system |
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