CN211474886U - Ultra-supercritical large-caliber integrally-forged double-flap unloading type electric throttle valve - Google Patents
Ultra-supercritical large-caliber integrally-forged double-flap unloading type electric throttle valve Download PDFInfo
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- CN211474886U CN211474886U CN201922209716.3U CN201922209716U CN211474886U CN 211474886 U CN211474886 U CN 211474886U CN 201922209716 U CN201922209716 U CN 201922209716U CN 211474886 U CN211474886 U CN 211474886U
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Abstract
The utility model relates to an ultra-supercritical large-caliber integrally-forged double-flap unloading type electric throttle valve, which comprises a valve body, a valve flap component, a valve seat, a valve cover and a valve rod, wherein the valve cover is arranged on the valve body to jointly form a valve cavity; the throttling valve further comprises a support, the support is arranged on the valve body and fixedly connected with the valve body, the upper end of the valve cover sequentially penetrates through the valve body and the support, the support stretches into the support, a pre-tightening disc is sleeved on the valve cover, four open rings, a compression ring and a hard self-sealing ring are sequentially arranged between the valve cover and the valve body from top to bottom, the upper end of the valve rod sequentially penetrates through the valve cover and the support, a valve rod nut is sleeved on the valve rod, the valve rod is in threaded connection with the valve rod nut, and the valve rod. The technical problems that when the valve is used under a large-caliber and high-pressure state, the sealing performance is poor, the operating torque is large, the service life is short and the like are solved, the cost is reduced, the increment is realized, and the use working condition is met.
Description
Technical Field
The utility model relates to a choke valve, concretely relates to whole bivalve off-load formula electronic choke valve of forging of ultra supercritical heavy-calibre.
Background
The traditional throttle valve is mainly applied to pipelines flowing in steam paths, water paths, oil paths and the like in the fields of petrochemical industry, oil and gas transportation, mine metallurgy, electric power and the like, and is used for connecting and cutting media in pipelines and ensuring the normal operation of equipment and pipelines. The medium flow of the conventional throttling valve is generally low in and high out, but the medium flow has the following defects for a high-pressure valve with a larger caliber: 1. the sealing performance is poor. 2. The operating torque is large. 3. Short service life and the like.
Disclosure of Invention
The utility model provides an ultra supercritical heavy-calibre whole forging bivalve off-load formula electronic choke valve.
The technical scheme of the utility model:
an ultra-supercritical large-caliber integrally-forged double-flap unloading type electric throttle valve comprises a valve body, a valve flap component, a valve seat, a valve cover and a valve rod, wherein the valve cover is arranged on the valve body to jointly form a valve cavity; the throttle valve also comprises a bracket which is arranged on the valve body and is fixedly connected with the valve body, the upper end of the valve cover sequentially penetrates through the valve body and the bracket to extend into the bracket, a pre-tightening disc is sleeved on the valve cover and is fixedly connected with the bracket, a split ring is arranged between the pre-tightening disc and the valve cover, four open rings, a compression ring and a hard self-sealing ring are sequentially arranged between the valve cover and the valve body from top to bottom, the upper end of the valve rod sequentially penetrates through the valve cover and the support and is sleeved with a valve rod nut, the valve rod and the valve rod nut are in threaded connection, the valve rod nut is rotatably installed in the support through a thrust ball bearing, a valve rod nut sleeve is sleeved on the valve rod nut and is positioned between the thrust ball bearing and the valve cover, a packing pad and packing are sequentially arranged between the valve rod and the valve cover from bottom to top, a packing pressing plate is sleeved on the valve rod and is fixedly connected with the pre; and the bearing gland is arranged on the support, is fixedly connected with the support and is pressed on the thrust ball bearing.
The technical scheme is further improved and refined, an inlet and an outlet are respectively arranged at two ends of the valve body, the valve seat is arranged in the valve cavity to divide the valve cavity into an upper cavity and a lower cavity, the upper cavity is connected with the inlet, and the lower cavity is connected with the outlet; the medium flow direction is "high in and low out".
The technical scheme is further improved and refined, the valve clack assembly comprises a throttle valve clack, a common valve clack, a large valve clack cover and a small valve clack cover, the throttle valve clack is arranged on a valve seat, the upper end of the throttle valve clack is cylindrical, the lower end of the throttle valve clack is semi-elliptical, a cylindrical groove is formed in the cylindrical inner part, a transverse unloading hole is formed at the joint of the cylindrical shape and the semi-elliptical shape, a vertical unloading hole is formed in the semi-elliptical shape, a cylindrical groove is formed in the middle of the common valve clack, the common valve clack is arranged in the cylindrical groove of the throttle valve clack, the large valve clack cover is arranged on the throttle valve clack, the small valve clack cover is arranged on the common valve cla; the valve rod is provided with a large valve clack cover and a small valve clack cover which extend into a cylindrical groove on the common valve clack in sequence, and split rings are arranged on the valve rod; a sealing surface is arranged between the throttle valve clack and the valve seat, the throttle valve clack and the valve seat are matched to open or close the valve, a sealing surface is arranged between the common valve clack and the throttle valve clack, and the common valve clack and the throttle valve clack are matched to open or close the transverse unloading hole and the vertical unloading hole; the transverse unloading hole and the vertical unloading hole are added, the pressure and the flow of fluid are controlled by changing the cross section, so that the opening torque of the valve is relatively reduced, the size of a valve rod can be relatively reduced, the specification of an operating device can be reduced, the material is saved, the cost is reduced, the sealing performance of the valve is improved, the service life is prolonged, and the like; the valve flap assembly and the valve cover are fixedly connected by the large valve flap cover, the small valve flap cover and the open circular ring, and the valve flap is easily separated from the valve rod when the valve is assembled and installed.
Further improvement and refinement are made to above-mentioned technical scheme, be provided with the deflector on the valve rod, the deflector includes front plate and back splint, and front plate and back splint centre gripping are on the valve rod.
The technical scheme is further improved and refined, and the hard self-sealing ring is made of F316 stainless steel.
The technical scheme is further improved and refined, and the valve body and the valve clack assembly are both made of an integrally forged ultra-supercritical material F92; the pressure bearing capacity of the valve is increased from below 1500LB to 2500 LB.
The technical scheme is further improved and refined, and the calibers of the inlet and the outlet are DN 200.
The technical scheme is further improved and refined, and the filling material is a plurality of layers of woven graphite asbestos and a plurality of layers of flexible graphite which are arranged from bottom to top.
The technical scheme is further improved and refined, and the valve seat is a detachable valve seat which is convenient to detach and maintain.
The utility model has the advantages that, reasonable in design thinks about ingeniously, utilizes four ring-opening, clamping ring, hard from sealing washer, guarantee to seal between valve gap and the valve body, and sealing performance is poor when solving the valve and using under heavy-calibre and high-pressure state, operating torque is big, technical problem such as life weak point, falls this increase, satisfies the service behavior.
Drawings
FIG. 1 is a schematic structural diagram of an ultra-supercritical large-caliber integrally forged double-flap unloading type electric throttle valve.
Fig. 2 is a partially enlarged schematic view (1) of fig. 1.
Fig. 3 is a partially enlarged schematic view (2) of fig. 1.
Fig. 4 is a partially enlarged schematic view (3) of fig. 1.
Fig. 5 is a partially enlarged schematic view (4) of fig. 1.
In the figure, a valve body 1, a valve clack assembly 2, a valve seat 3, a valve cover 4, a valve rod 5, a support 6, a pre-tightening disc 7, a four-open ring 8, a pressing ring 9, a hard self-sealing ring 10, a valve rod nut 11, a thrust ball bearing 12, a packing pad 13, a packing pad 14, a packing pressing plate 16, a bearing pressing cover 17, a throttle valve clack 2-1, a common valve clack 2-2, a large valve clack cover 2-3, a small valve clack cover 2-4, a transverse unloading hole 2.
Detailed Description
As shown in fig. 1-5, an ultra-supercritical large-caliber integrally forged double-flap unloading type electric throttle valve comprises a valve body 1, a valve flap component 2, a valve seat 3, a valve cover 4 and a valve rod 5, wherein the valve cover 4 is arranged on the valve body 1 to jointly form a valve cavity, the valve flap component 2 and the valve seat 3 are arranged in the valve cavity in a matched manner, and the upper end of the valve flap component 2 is connected with the valve rod 5; the throttling valve further comprises a support 6, the support 6 is arranged on the valve body 1 and fixedly connected with the valve body 1, the upper end of the valve cover 4 sequentially penetrates through the valve body 1 and the support 6 to extend into the support 6, a pre-tightening disc 7 is sleeved on the support, the pre-tightening disc 7 is fixedly connected with the support 6, a split ring is arranged between the pre-tightening disc 7 and the valve cover 4, a four-open ring 8, a pressing ring 9 and a hard self-sealing ring 10 are sequentially arranged between the valve cover 4 and the valve body 1 from top to bottom, the upper end of the valve rod 5 sequentially penetrates through the valve cover 4 and the support 6 and is sleeved with a valve rod nut 11, the valve rod 5 is in threaded connection with the valve rod nut 11, the valve rod nut 11 is rotatably arranged in the support 6 through a thrust ball bearing 12, a valve rod nut outer sleeve 13 is sleeved on the valve rod nut 11, the valve rod nut outer sleeve 13, A packing 15, wherein a packing pressing plate 16 is sleeved on the valve rod 5, and the packing pressing plate 16 is fixedly connected with the pre-tightening disc 7 and presses the packing 15; a bearing gland 17 is arranged on the bracket 6, and the bearing gland 17 is fixedly connected with the bracket 6 and pressed on the thrust ball bearing 12; an inlet and an outlet are respectively arranged at two ends of the valve body 1, the valve seat 3 is arranged in the valve cavity and divides the valve cavity into an upper cavity and a lower cavity, the upper cavity is connected with the inlet, and the lower cavity is connected with the outlet; the medium flow direction is 'high in and low out'; the valve clack component 2 comprises a throttle valve clack 2-1, a common valve clack 2-2, a large valve clack cover 2-3 and a small valve clack cover 2-4, the throttle valve clack 2-1 is arranged on a valve seat 3, the upper end of the throttle valve clack 2-1 is cylindrical, the lower end of the throttle valve clack is semi-elliptical, a cylindrical groove is arranged in the cylindrical groove, a transverse unloading hole 2-5 is arranged at the joint of the cylindrical shape and the semi-elliptical shape, a vertical unloading hole 2-6 is arranged in the semi-elliptical shape, a cylindrical groove is arranged in the middle of the common valve clack 2-2, the common valve clack 2-2 is arranged in the, the big valve clack cover 2-3 is arranged on the throttle clack 2-1, the small valve clack cover 2-4 is arranged on the common valve clack 2-2, and a space for the common valve clack 2-2 to move up and down is arranged between the large valve clack cover 2-3 and the small valve clack cover 2-4; the valve rod 5 is provided with a large valve clack cover 2-3 and a small valve clack cover 2-4 which extend into a cylindrical groove on the common valve clack 2-2 in sequence, and a split ring is arranged on the valve rod; a sealing surface is arranged between the throttle valve clack 2-1 and the valve seat 3, the throttle valve clack 2-1 is matched with the valve seat 3 to open or close the valve, a sealing surface is arranged between the common valve clack 2-2 and the throttle valve clack 2-1, and the common valve clack 2-2 is matched with the throttle valve clack 2-1 to open or close the transverse unloading hole 2-5 and the vertical unloading hole 2-6; the valve rod 5 is provided with a guide plate 18, the guide plate 18 comprises a front clamping plate and a rear clamping plate, and the front clamping plate and the rear clamping plate are clamped on the valve rod 5; the hard self-sealing ring 10 is made of F316 stainless steel; the valve body 1 and the valve clack component 2 are both made of an integrally forged ultra-supercritical material F92; the pressure bearing capacity of the valve is increased to 2500LB from below original 1500 LB; the calibers of the inlet and the outlet are DN 200; the filler 15 is a plurality of layers of woven graphite asbestos and a plurality of layers of flexible graphite which are arranged from bottom to top; the valve seat 3 is a detachable valve seat.
The above disclosure is only for the preferred embodiment of the present invention, but not intended to limit itself, and any changes and modifications made by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. An ultra-supercritical large-caliber integrally-forged double-flap unloading type electric throttle valve comprises a valve body, a valve flap component, a valve seat, a valve cover and a valve rod, wherein the valve cover is arranged on the valve body to jointly form a valve cavity; the throttle valve is characterized by further comprising a support, the support is arranged on the valve body and fixedly connected with the valve body, the upper end of the valve cover sequentially penetrates through the valve body and the support to extend into the support, a pre-tightening disc is sleeved on the valve cover and fixedly connected with the support, a split ring is arranged between the pre-tightening disc and the valve cover, four open rings, a pressing ring and a hard self-sealing ring are sequentially arranged between the valve cover and the valve body from top to bottom, the upper end of the valve rod sequentially penetrates through the valve cover and the support and is sleeved with a valve rod nut, the valve rod is in threaded connection with the valve rod nut, the valve rod nut is rotatably arranged in the support through a thrust ball bearing, a valve rod nut sleeve is sleeved on the valve rod nut and is positioned between the thrust ball bearing, a packing pad and a packing are sequentially arranged between the valve rod and the valve, and pressing on the filler; and the bearing gland is arranged on the support, is fixedly connected with the support and is pressed on the thrust ball bearing.
2. The ultra-supercritical large-caliber integrally forged two-piece unloading type electric throttling valve as claimed in claim 1, wherein an inlet and an outlet are respectively arranged at two ends of the valve body, the valve seat is arranged in the valve cavity to divide the valve cavity into an upper cavity and a lower cavity, the upper cavity is connected with the inlet, and the lower cavity is connected with the outlet.
3. The ultra-supercritical large-caliber integrally forged double-flap unloading type electric throttle valve as claimed in claim 2, wherein the valve flap assembly comprises a throttle flap, a normal valve flap, a large flap cover and a small flap cover, the throttle flap is mounted on a valve seat, the upper end of the throttle flap is cylindrical, the lower end of the throttle flap is semi-elliptical, a cylindrical groove is formed in the cylindrical inner part, a transverse unloading hole is formed at the joint of the cylindrical part and the semi-elliptical part, a vertical unloading hole is formed in the semi-elliptical part, a cylindrical groove is formed in the middle of the normal flap, the normal flap is mounted in the cylindrical groove of the throttle flap, the large flap cover is mounted on the throttle flap, the small flap cover is mounted on the normal flap, and a space for the normal flap to move up and down is formed between the large flap cover and the small flap cover; the valve rod is provided with a large valve clack cover and a small valve clack cover which extend into a cylindrical groove on the common valve clack in sequence, and split rings are arranged on the valve rod; a sealing surface is arranged between the throttle valve clack and the valve seat, the throttle valve clack and the valve seat are matched to open or close the valve, a sealing surface is arranged between the common valve clack and the throttle valve clack, and the common valve clack and the throttle valve clack are matched to open or close the transverse unloading hole and the vertical unloading hole.
4. The ultra-supercritical large-caliber integrally forged two-piece unloading type electric throttle valve according to claim 1, wherein a guide plate is arranged on the valve rod, the guide plate comprises a front clamping plate and a rear clamping plate, and the front clamping plate and the rear clamping plate are clamped on the valve rod.
5. The ultra-supercritical large-caliber integrally forged two-piece unloading type electric throttle valve according to claim 1, wherein the hard self-sealing ring is made of F316 stainless steel.
6. The ultra-supercritical large-caliber integrally-forged double-flap unloading type electric throttle valve as claimed in claim 1, wherein the valve body and the valve flap assembly are both made of integrally-forged ultra-supercritical material F92.
7. The ultra-supercritical large-caliber integrally forged two-piece unloading type electric throttle valve according to claim 2, wherein the calibers of the inlet and the outlet are DN 200.
8. The ultra-supercritical large-caliber integrally forged double-flap unloading type electric throttling valve according to claim 1, wherein the filler comprises a plurality of layers of braided graphite asbestos and a plurality of layers of flexible graphite which are arranged from bottom to top.
9. The ultra-supercritical large-caliber integrally forged two-piece unloading type electric throttle valve according to claim 1, wherein the valve seat is a detachable valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922209716.3U CN211474886U (en) | 2019-12-11 | 2019-12-11 | Ultra-supercritical large-caliber integrally-forged double-flap unloading type electric throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922209716.3U CN211474886U (en) | 2019-12-11 | 2019-12-11 | Ultra-supercritical large-caliber integrally-forged double-flap unloading type electric throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211474886U true CN211474886U (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922209716.3U Active CN211474886U (en) | 2019-12-11 | 2019-12-11 | Ultra-supercritical large-caliber integrally-forged double-flap unloading type electric throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211474886U (en) |
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2019
- 2019-12-11 CN CN201922209716.3U patent/CN211474886U/en active Active
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