CN117108757B - Butterfly valve for low-pressure cylinder zero-output heat supply transformation - Google Patents

Butterfly valve for low-pressure cylinder zero-output heat supply transformation Download PDF

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Publication number
CN117108757B
CN117108757B CN202311372368.6A CN202311372368A CN117108757B CN 117108757 B CN117108757 B CN 117108757B CN 202311372368 A CN202311372368 A CN 202311372368A CN 117108757 B CN117108757 B CN 117108757B
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CN
China
Prior art keywords
valve
hole
holes
annular
fixing
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Active
Application number
CN202311372368.6A
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Chinese (zh)
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CN117108757A (en
Inventor
栾俊
李刚
周亚男
田忠玉
文子强
万锐
李少俊
孙磊
李建波
王成
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Huaneng Jinan Huangtai Power Generation Co Ltd
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Huaneng Jinan Huangtai Power Generation Co Ltd
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Priority to CN202311372368.6A priority Critical patent/CN117108757B/en
Publication of CN117108757A publication Critical patent/CN117108757A/en
Application granted granted Critical
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/221—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves specially adapted operating means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/228—Movable sealing bodies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/48—Attaching valve members to screw-spindles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K35/00—Means to prevent accidental or unauthorised actuation

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

The invention discloses a butterfly valve for zero-output heat supply transformation of a low-pressure cylinder, which comprises an on-off assembly, an adjusting assembly, a transmission assembly and a driving assembly, wherein the on-off assembly comprises a valve tube, a valve disc, the adjusting assembly is arranged outside the on-off assembly and comprises a first fixing plate, a translation plate, a first fixing bolt, and the transmission assembly is arranged at one end of the adjusting assembly and comprises a face gear, a driven gear and a driving gear. The invention can always keep good sealing effect in the valve under the cooperation of the on-off assembly, the adjusting assembly and the transmission assembly, and can still keep the sealing effect even if the inner wall of the pipeline in the valve is worn after long-time use.

Description

Butterfly valve for low-pressure cylinder zero-output heat supply transformation
Technical Field
The invention relates to the technical field of butterfly valves, in particular to a butterfly valve for zero-output heat supply transformation of a low-pressure cylinder.
Background
When the low-pressure cylinder zero-output heat supply transformation is carried out on the turbine, in order to realize zero-output operation, an original steam inlet pipeline of the low-pressure cylinder needs to be cut off, then a sealed hydraulic butterfly valve needs to be installed for controlling steam inlet of the low-pressure cylinder, finally a proper amount of cooling steam needs to be introduced, blast heat generated by rotor rotation after the transformation of the low-pressure cylinder is taken away, and a bypass pipeline needs to be additionally arranged.
In order to adapt to the original steam inlet pipeline of the low-pressure cylinder, a hydraulic butterfly valve is needed, a general butterfly valve uses a butterfly plate to rotate to control the on-off of the pipeline, the butterfly plate and the inner wall of the pipeline can be rubbed frequently, the sealing effect of the butterfly valve can be reduced after a long time, and the temperature and the pressure in the steam inlet pipeline of the low-pressure cylinder are still higher than those of the outside, so that the butterfly valve capable of maintaining the sealing effect is needed, and the sealing effect can be still maintained even if the inner wall of the pipeline in the valve is worn.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the invention, which should not be used to limit the scope of the invention.
The present invention has been made in view of the above-mentioned and/or existing problems with butterfly valves for low pressure cylinder zero-output heat supply modification.
Therefore, the problem to be solved by the invention is how to keep the sealing effect of the butterfly valve after the inner wall of the pipeline in the valve is worn.
In order to solve the technical problems, the invention provides the following technical scheme: a butterfly valve for low-pressure cylinder zero-output heat supply transformation comprises an on-off assembly, an adjusting assembly and a transmission assembly.
As a preferable scheme of the butterfly valve for the low-pressure cylinder zero-output heat supply transformation, the invention comprises the following steps: the on-off assembly comprises a valve tube and a valve disc, and the valve disc is arranged in the center of the interior of the valve tube;
the adjusting assembly is arranged on the outer side of the on-off assembly and comprises a first fixing plate, a translation plate and a first fixing bolt, the first fixing plate is arranged on the outer portion of one end of the valve tube, the translation plate is arranged on one side of the first fixing plate, and the first fixing bolt is connected with the first fixing plate and the translation plate; the method comprises the steps of,
the transmission assembly is arranged at one end of the adjusting assembly and comprises a face gear, a driven gear and a driving gear, the face gear is arranged outside the other end of the valve tube, the driven gear is arranged at one side of the face gear and meshed with the face gear, and the driving gear is arranged at one side of the driven gear and meshed with the driven gear.
As a preferable scheme of the butterfly valve for the low-pressure cylinder zero-output heat supply transformation, the invention comprises the following steps: a first through positioning hole is formed in the side face of the valve tube; and the top and the bottom of the valve disc are provided with second positioning holes, and the first positioning holes are opposite to the second positioning holes.
As a preferable scheme of the butterfly valve for the low-pressure cylinder zero-output heat supply transformation, the invention comprises the following steps: the on-off assembly further comprises an upper valve rod and a lower valve rod; the upper valve rod penetrates through and is rotationally connected with the first positioning hole, and the bottom of the upper valve rod is fixedly connected with the second positioning hole at the top of the valve disc; the lower valve rod penetrates through and is rotationally connected with the first positioning hole, and the top of the lower valve rod is fixedly connected with the second positioning hole at the bottom of the valve disc.
As a preferable scheme of the butterfly valve for the low-pressure cylinder zero-output heat supply transformation, the invention comprises the following steps: the valve tube is characterized in that a first annular hole and a first middle hole are formed in the first fixing plate, the first middle hole is formed in the center of the first fixing plate, one end of the valve tube penetrates through and is fixedly connected with the first middle hole, a plurality of groups of first annular holes are formed, and the first annular holes are uniformly arranged around the first middle hole in a surrounding mode;
the translation plate is provided with a second annular hole and a second middle hole, the second middle hole is arranged at the center of the first fixing plate, a plurality of groups of second annular holes are uniformly and circumferentially arranged around the second middle hole, the first annular hole is opposite to the second annular hole, and the valve pipe penetrates through and is rotationally connected with the second middle hole;
the number of the first fixing bolts is half of the number of the first annular holes, and the first fixing bolts are arranged on the first annular holes at intervals;
the first fixing bolt comprises a first stud, a first nut and a second nut;
the first fixing plate is fixed between the first stud and the first nut, and the translation plate is sleeved outside the first stud and is arranged between the first nut and the second nut.
As a preferable scheme of the butterfly valve for the low-pressure cylinder zero-output heat supply transformation, the invention comprises the following steps: the adjusting component further comprises a second fixing plate, a rotating plate and a second fixing bolt;
the second fixing plate is arranged outside the other end of the valve pipe relative to the first fixing plate;
the rotating plate is arranged on one side of the second fixing plate;
and the second fixing bolt is connected with the second fixing plate and the rotating plate.
As a preferable scheme of the butterfly valve for the low-pressure cylinder zero-output heat supply transformation, the invention comprises the following steps: the second fixing plate is provided with a third annular hole and a third middle hole, the third annular hole is opposite to the first annular hole, and the valve pipe is fixedly connected with the third middle hole;
the rotary plate is provided with four annular holes, four arc holes and four middle holes, the four middle holes are arranged in the center of the rotary plate, the four annular holes are uniformly and circumferentially arranged outside the four middle holes, the number of the four annular holes is half of that of the first annular holes, the number of the four arc holes is the same as that of the four annular holes, and the four arc holes are uniformly arranged between the four annular holes;
the second fixing bolts are provided with a plurality of groups and correspond to the fourth arc holes one by one, and are arranged on the third annular holes at intervals; the second fixing bolt penetrates through the fourth arc hole;
the second fixing bolt comprises a second stud, a third nut, a fourth nut and a fifth nut; the second fixing plate is fixed between the second stud and the third nut, and the rotating plate is fixed between the fourth nut and the fifth nut.
As a preferable scheme of the butterfly valve for the low-pressure cylinder zero-output heat supply transformation, the invention comprises the following steps: the adjusting component further comprises a first movable bolt, a tightening rod and a second movable bolt;
the first movable bolts are installed on the first annular holes at intervals, and the first movable bolts are arranged on one side of the first fixed bolts;
one end of the tightening rod is rotationally connected with the end part of the first movable bolt, and the other end of the tightening rod is rotationally connected with the end part of the second movable bolt;
the second movable bolts are installed on the third annular holes at intervals, and the second movable bolts are arranged on one sides of the second fixing bolts.
As a preferable scheme of the butterfly valve for the low-pressure cylinder zero-output heat supply transformation, the invention comprises the following steps: the end face gear is tubular, and the inside of the toothless end of the end face gear is fixedly connected with the rotating plate;
the driven gear is arranged between the driving gear and the face gear;
the center of the driving gear is fixedly connected with the upper valve rod.
As a preferable scheme of the butterfly valve for the low-pressure cylinder zero-output heat supply transformation, the invention comprises the following steps: the transmission assembly further comprises a limit bolt, a handle and a fixed shell;
the fixed shell is arranged outside the face gear, one end of the fixed shell is rotationally connected with the outer wall of the face gear, and the other end of the fixed shell is fixedly connected with the outer wall of the first fixed plate;
the handle is arranged outside the fixed shell, the top of the upper valve rod is fixedly connected with one end of the handle, and a fixed hole is formed in the center of the handle;
the limit bolt penetrates through the fixed shell and penetrates through the driven gear.
As a preferable scheme of the butterfly valve for the low-pressure cylinder zero-output heat supply transformation, the invention comprises the following steps: the transmission assembly further comprises a limiting block and a limiting spring, wherein the limiting spring is arranged inside one end of the limiting bolt, the limiting block is fixedly connected with the limiting spring and protrudes out of one end of the limiting bolt, and the limiting block is matched with the fixing hole in the center of the handle.
The invention has the beneficial effects that: the invention can always keep good sealing effect in the valve under the cooperation of the on-off assembly, the adjusting assembly and the transmission assembly, and can still keep the sealing effect even if the inner wall of the pipeline in the valve is worn after long-time use.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is an overall structure diagram of a butterfly valve for low pressure cylinder zero output heat supply modification.
FIG. 2 is an overall cross-sectional view of a low pressure cylinder zero-output heating retrofit butterfly valve.
FIG. 3 is a partial block diagram of an adjustment assembly of a butterfly valve for low pressure cylinder zero-output heat supply modification.
FIG. 4 is a block diagram of the on-off assembly of the butterfly valve for the low pressure cylinder zero output heat supply modification.
FIG. 5 is a block diagram of an adjustment assembly of a butterfly valve for low pressure cylinder zero-output heat supply modification.
FIG. 6 is a block diagram of the drive assembly of the butterfly valve for the low pressure cylinder zero output heat supply modification.
In the figure: the on-off assembly 100, the valve tube 101, the first positioning hole H1, the valve disc 102, the second positioning hole H2, the upper valve stem 103, the lower valve stem 104, the adjustment assembly 200, the first fixing plate 201, the first annular hole H3, the first intermediate hole H4, the translation plate 202, the second annular hole H5, the second intermediate hole H6, the first fixing bolt 203, the first stud 203a, the first nut 203b, the second nut 203c, the first movable bolt 204, the tightening rod 205, the second movable bolt 206, the second fixing plate 207, the third annular hole H7, the third intermediate hole H8, the rotating plate 208, the fourth annular hole H9, the fourth arc hole H10, the fourth intermediate hole H11, the second fixing bolt 209, the second stud 209a, the third nut 209b, the fourth nut 209c, the fifth nut 209d, the transmission assembly 300, the face gear 301, the driven gear 302, the driving gear 303, the limit bolt 304, the handle 305, the fixing hole H12, the limit block 306, the limit spring 307, and the fixing case 308.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 4, in a first embodiment of the present invention, a butterfly valve for low pressure cylinder zero-output heat supply modification is provided, where the butterfly valve for low pressure cylinder zero-output heat supply modification includes an on-off assembly 100, an adjusting assembly 200, and a transmission assembly 300.
Specifically, the on-off assembly 100 includes a valve tube 101 and a valve disc 102, and the valve disc 102 is disposed in the center of the interior of the valve tube 101.
The on-off assembly 100 is used to on-off the fluid in the original steam inlet pipeline of the low pressure cylinder as required.
The adjusting assembly 200 is arranged outside the on-off assembly 100 and comprises a first fixing plate 201, a translation plate 202 and a first fixing bolt 203, wherein the first fixing plate 201 is arranged outside one end of the valve tube 101, the translation plate 202 is arranged on one side of the first fixing plate 201, and the first fixing bolt 203 is connected with the first fixing plate 201 and the translation plate 202.
The adjustment assembly 200 is used to control the rotation of the valve disc 102 and indirectly control the on-off of the conduit.
The transmission assembly 300 is arranged at one end of the adjustment assembly 200 and comprises a face gear 301, a driven gear 302 and a driving gear 303, wherein the face gear 301 is arranged outside the other end of the valve tube 101, the driven gear 302 is arranged at one side of the face gear 301 and is meshed with the face gear 301, and the driving gear 303 is arranged at one side of the driven gear 302 and is meshed with the driven gear 302.
The transmission assembly 300 transmits the force applied to the adjustment assembly 200 to the outside of the on-off assembly 100 to bring the valve tube 101 and the valve disc 102 into close contact, and maintains the valve tube 101 and the valve disc 102 in close contact even if the inside of the valve tube 101 is worn, greatly extending the duration of the sealing effect.
Specifically, a first positioning hole H1 is formed in the side surface of the valve tube 101; the top and bottom of valve disc 102 are equipped with No. two locating holes H2, and No. one locating hole H1 and No. two locating holes H2 are just right, and valve tube 101 is soft material silica gel and makes, can be changed the internal diameter by adjusting subassembly 200.
The valve tube 101 contracts when a lateral force is applied to the valve tube 101, allowing the valve tube 101 and the valve disc 102 to remain tightly connected. Two pilot holes are used to connect the valve disc 102 to other parts outside the valve tube 101.
Specifically, the on-off assembly 100 further includes an upper valve stem 103 and a lower valve stem 104; the upper valve rod 103 penetrates through and is rotationally connected with a first positioning hole H1, and the bottom of the upper valve rod 103 is fixedly connected with a second positioning hole H2 at the top of the valve disc 102; the lower valve rod 104 penetrates through and is rotationally connected with a first positioning hole H1, and the top of the lower valve rod 104 is fixedly connected with a second positioning hole H2 at the bottom of the valve disc 102.
The upper valve rod 103 rotates to drive the valve disc 102 to rotate, when the disc surface of the valve disc 102 is radially parallel to the valve tube 101, the valve tube 101 is blocked by the valve disc 102, internal fluid is not communicated, and when the disc surface of the valve disc 102 is axially parallel to the valve tube 101, the valve tube 101 is not blocked by the valve disc 102, and internal fluid is movable.
When the valve tube 101 is in radial parallel with the valve disc 102, the valve tube 101 is blocked by the valve disc 102, internal fluid is not led out, when the disc surface of the valve disc 102 is axially parallel with the valve tube 101, the valve tube 101 is not blocked by the valve disc 102, internal fluid is movable, the on-off state inside the valve tube 101 is switched by adjusting the direction of the valve disc 102 of the on-off assembly 100 through the adjusting assembly 200, meanwhile, the transmission assembly 300 transmits the force applied on the adjusting assembly 200 to the outside of the on-off assembly 100, so that the valve tube 101 and the valve disc 102 are in tight contact, and even if the inside of the valve tube 101 is worn, the valve tube 101 and the valve disc 102 are kept in tight contact, so that the duration of the sealing effect is greatly prolonged.
Example 2
Referring to fig. 1 to 6, a second embodiment of the present invention is based on the previous embodiment.
Specifically, the first fixing plate 201 is provided with a first annular hole H3 and a first middle hole H4, the first middle hole H4 is arranged in the center of the first fixing plate 201, one end of the valve tube 101 penetrates through and is fixedly connected with the first middle hole H4, and a plurality of groups of the first annular holes H3 are uniformly arranged around the first middle hole H4 in a surrounding mode.
Half of the first annular holes H3 are used for being connected with the translation plate 202 through a first fixing bolt 203, and the other half of the first annular holes H3 are connected with a flange at the cut-off position of an original steam inlet pipeline of the low-pressure cylinder.
The translation plate 202 is provided with a second annular hole H5 and a second annular hole H6, the second annular hole H6 is arranged in the center of the first fixing plate 201, a plurality of groups of second annular holes H5 are uniformly and circumferentially arranged around the second annular hole H6, the first annular hole H3 and the second annular hole H5 are opposite, and the valve tube 101 penetrates through and rotationally connects the second annular hole H6.
The first fixing bolts 203 are provided with a plurality of groups, the number of the first fixing bolts is half of the number of the first annular holes H3, and the first fixing bolts 203 are installed on the first annular holes H3 at intervals; the first fixing bolt 203 includes a first stud 203a, a first nut 203b, and a second nut 203c; the first fixing plate 201 is fixed between the first stud 203a and the first nut 203b, and the translation plate 202 is sleeved outside the first stud 203a and is disposed between the first nut 203b and the second nut 203 c.
The first stud 203a and the first nut 203b have a small interval therebetween, and the first fixing plate 201 is fixed; the first nut 203b and the second nut 203c have a large gap therebetween, and the translation plate 202 can translate on the first stud 203a between the first nut 203b and the second nut 203 c.
Specifically, the adjustment assembly 200 further includes a second fixing plate 207, a rotating plate 208, and a second fixing bolt 209; the second fixing plate 207 is provided outside the other end of the valve tube 101 with respect to the first fixing plate 201; the rotating plate 208 is arranged on one side of the second fixing plate 207; the second fixing bolt 209 connects the second fixing plate 207 and the rotating plate 208.
A first fixing plate 201, a translation plate 202 and a first fixing bolt 203 are provided at one end of the valve tube 101, and a second fixing plate 207, a rotation plate 208 and a second fixing bolt 209 are provided at the other end of the valve tube 101.
Specifically, the second fixing plate 207 is provided with a third annular hole H7 and a third middle hole H8, the third annular hole H7 is opposite to the first annular hole H3, and the valve tube 101 is fixedly connected with the third middle hole H8; the rotary plate 208 is provided with four annular holes H9, four arc holes H10 and four middle holes H11, the four middle holes H11 are arranged in the center of the rotary plate 208, the four annular holes H9 are uniformly and circumferentially arranged outside the four middle holes H11, the number of the four annular holes H9 is half of that of the one annular hole H3, the number of the four arc holes H10 is the same as that of the four annular holes H9, and the four arc holes H10 are uniformly arranged between the four annular holes H9; the second fixing bolts 209 are provided with a plurality of groups and are in one-to-one correspondence with the fourth arc holes H10, and the second fixing bolts 209 are installed on the third annular holes H7 at intervals; the second fixing bolt 209 penetrates through the fourth arc hole H10; the second fixing bolt 209 includes a second stud 209a, a third nut 209b, a fourth nut 209c, and a fifth nut 209d; the second fixing plate 207 is fixed between the second stud 209a and the third nut 209b, and the rotating plate 208 is fixed between the fourth nut 209c and the fifth nut 209 d.
The rotating plate 208 can rotate for a certain angle under the restriction of the second fixing bolt 209 through the fourth arc hole H10, the third annular hole H7 is the same as the first annular hole H3, and half of the third annular hole H7 is in flange connection with the cutting-off part of the original steam inlet pipeline of the low-pressure cylinder.
Specifically, the adjustment assembly 200 further includes a first movable bolt 204, a tightening rod 205, and a second movable bolt 206; the first movable bolts 204 are installed on the first annular hole H3 at intervals, and the first movable bolts 204 are arranged on one side of the first fixed bolts 203; one end of the tightening rod 205 is rotationally connected with the end part of the first movable bolt 204, and the other end of the tightening rod 205 is rotationally connected with the end part of the second movable bolt 206; the second movable bolts 206 are installed on the third annular hole H7 at intervals, and the second movable bolts 206 are arranged on one side of the second fixed bolts 209.
When the rotating plate 208 rotates, the second movable bolt 206 is driven to rotate, so that the tightening rod 205 and the first movable bolt 204 are driven to move, and the first movable bolt 204 drives the translation plate 202 to move, so that the middle part of the tightening rod 205 contacts the valve tube 101, the inner wall of the valve tube 101 is reduced, when the rotating angle of the rotating plate 208 is maximum, and the middle part of the tightening rod 205 presses the valve tube 101 to be the tightest, even if the valve tube 101 is worn, the valve disc 102 and the valve tube 101 are kept in contact with each other to be the tightest, and the duration of the sealing effect is greatly prolonged.
When the valve disc 102 is in radial parallel with the valve tube 101, the valve tube 101 is blocked by the valve disc 102, internal fluid is not led out, when the disc surface of the valve disc 102 is axially parallel with the valve tube 101, the valve tube 101 is not blocked by the valve disc 102, internal fluid is movable, the on-off state inside the valve tube 101 is switched by adjusting the direction of the valve disc 102 of the on-off assembly 100 through the adjusting assembly 200, meanwhile, the transmission assembly 300 transmits the force applied to the adjusting assembly 200 to the outside of the on-off assembly 100, when the rotating plate 208 rotates, the second movable bolt 206 is driven to rotate, so that the tightening rod 205 and the first movable bolt 204 are driven to move, the first movable bolt 204 drives the translation plate 202 to move, the middle part of the tightening rod 205 is contacted with the valve tube 101, the inner wall of the valve tube 101 is contracted, when the rotating plate 208 rotates to the maximum, the middle part of the tightening rod 205 presses the valve tube 101, the valve disc 102 and the valve tube 101 are kept in contact with the highest tightness even if the valve tube 101 is worn, and the sealing effect duration is greatly prolonged.
Example 3
Referring to fig. 1 to 6, a third embodiment of the present invention is based on the above two embodiments.
Specifically, the face gear 301 is tubular, and the inside of the toothless end of the face gear 301 is fixedly connected with the rotating plate 208; the driven gear 302 is disposed between the driving gear 303 and the face gear 301; the center of the driving gear 303 is fixedly connected with the upper valve rod 103.
The rotation of the driving gear 303 in the horizontal direction drives the face gear 301 to rotate in the vertical direction through the driven gear 302.
Specifically, the transmission assembly 300 further includes a stop bolt 304, a handle 305, and a stationary housing 308; the fixed shell 308 is arranged outside the face gear 301, one end of the fixed shell 308 is rotationally connected with the outer wall of the face gear 301, and the other end of the fixed shell 308 is fixedly connected with the outer wall of the first fixed plate 201; the handle 305 is arranged outside the fixed shell 308, the top of the upper valve rod 103 is fixedly connected with one end of the handle 305, and a fixed hole H12 is formed in the center of the handle 305; the limit bolt 304 extends through the stationary housing 308 and through the driven gear 302.
Rotating the handle 305 can drive the driving gear 303 to rotate, and by setting the gear ratio of the driving gear 303 and the face gear 301, when the handle 305 rotates 90 degrees, the rotation angle of the face gear 301 is the same as the angle of the fourth arc hole H10;
when the disk surface and the valve tube 101 are axially parallel, the valve tube 101 is not blocked by the valve disk 102, and the internal fluid is movable. By rotating the handle 305 by 90 degrees and the disk surface of the valve disk 102 by 90 degrees, when the disk surface of the valve disk 102 and the valve pipe 101 are radially parallel, the valve pipe 101 is blocked by the valve disk 102, internal fluid is not communicated, and meanwhile, the valve pipe 101 is pressed by the tightening rod 205, so that the valve pipe 101 and the valve disk 102 are in closer contact, the valve disk 102 is prevented from rotating in the tighter valve pipe 101, and the valve pipe 101 is tightened and the rotation of the valve disk 102 is synchronous, so that the abrasion of the valve pipe 101 by the valve disk 102 is reduced, and meanwhile, the force for rotating the valve disk 102 is saved.
Specifically, the transmission assembly 300 further includes a limiting block 306 and a limiting spring 307, the limiting spring 307 is disposed inside one end of the limiting bolt 304, the limiting block 306 and the limiting spring 307 are fixedly connected and protrude out of one end of the limiting bolt 304, and the limiting block 306 is matched with a fixing hole H12 in the center of the handle 305.
When the handle 305 rotates 90 degrees to block the valve tube 101 by the valve disc 102, the limiting block 306 contacts with the handle 305 and is pressed downwards by the handle 305 until the limiting block 306 is sprung up by the limiting spring 307, and the limiting block 306 is clamped in the fixing hole H12 in the center of the handle 305, so that the closed state of the valve tube 101 is maintained, and the reaction force of the tightening rod 205 is avoided to restore the adjusting assembly 200 to the original position.
When the valve disc 102 is in radial parallel with the valve tube 101, the valve tube 101 is blocked by the valve disc 102, internal fluid is not led to pass through, when the valve disc 102 is blocked by the valve disc 102 and the valve tube 101 is axially parallel, the valve tube 101 is not blocked by the valve disc 102, internal fluid is movable, the on-off state of the interior of the valve tube 101 is switched by adjusting the direction of the valve disc 102 of the on-off assembly 100 through the adjusting assembly 200, meanwhile, the transmission assembly 300 transmits the force applied on the adjusting assembly 200 to the exterior of the on-off assembly 100, when the rotating plate 208 rotates, the second movable bolt 206 is driven to rotate, so that the tightening rod 205 and the first movable bolt 204 are driven to move, the translation plate 202 is driven to move by the first movable bolt 204, the middle part of the tightening rod 205 is contacted with the valve tube 101, the inner wall of the valve tube 101 is contracted, when the rotating angle of the rotating plate 208 is maximum, the middle part of the tightening rod 205 presses the valve tube 101 to be the tightest, even if the interior of the valve tube 101 is worn, the valve tube 102 is kept in contact with the tightest, the sealing effect duration is greatly prolonged, and when the valve tube 101 is pressed by the tightening rod 205, the valve tube 101 contacts the valve tube 102, the valve tube 205, the valve plate 205 is more tightly, the valve plate 205 and the valve tube 102 is prevented from rotating, the opposite to the rotation position of the valve tube 102, the valve tube 102 is prevented from rotating, and the limit force is simultaneously, and the valve tube 102 is prevented from rotating synchronously, and the opposite to the rotation of the valve tube 102, and the valve tube 101.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.

Claims (3)

1. The utility model provides a low pressure jar zero output butterfly valve for heat supply transformation which characterized in that: comprising the steps of (a) a step of,
the on-off assembly (100) comprises a valve tube (101) and a valve disc (102), wherein the valve disc (102) is arranged in the center of the interior of the valve tube (101);
the adjusting assembly (200) is arranged on the outer side of the on-off assembly (100) and comprises a first fixing plate (201), a translation plate (202) and a first fixing bolt (203), wherein the first fixing plate (201) is arranged outside one end of the valve tube (101), the translation plate (202) is arranged on one side of the first fixing plate (201), and the first fixing bolt (203) is connected with the first fixing plate (201) and the translation plate (202); the method comprises the steps of,
the transmission assembly (300) is arranged at one end of the adjusting assembly (200) and comprises a face gear (301), a driven gear (302) and a driving gear (303), the face gear (301) is arranged outside the other end of the valve tube (101), the driven gear (302) is arranged at one side of the face gear (301) and is meshed with the face gear (301), and the driving gear (303) is arranged at one side of the driven gear (302) and is meshed with the driven gear (302);
a first through positioning hole (H1) is formed in the side face of the valve tube (101); the top and the bottom of the valve disc (102) are provided with second positioning holes (H2), and the first positioning holes (H1) are opposite to the second positioning holes (H2);
the on-off assembly (100) further comprises an upper valve rod (103) and a lower valve rod (104); the upper valve rod (103) penetrates through and is rotationally connected with the first positioning hole (H1), and the bottom of the upper valve rod (103) is fixedly connected with the second positioning hole (H2) at the top of the valve disc (102); the lower valve rod (104) penetrates through and is rotationally connected with the first positioning hole (H1), and the top of the lower valve rod (104) is fixedly connected with the second positioning hole (H2) at the bottom of the valve disc (102);
the valve tube (101) is characterized in that a first annular hole (H3) and a first middle hole (H4) are formed in the first fixing plate (201), the first middle hole (H4) is formed in the center of the first fixing plate (201), one end of the valve tube (101) penetrates through and is fixedly connected with the first middle hole (H4), a plurality of groups of the first annular holes (H3) are uniformly arranged around the first middle hole (H4) in a surrounding mode;
the translation plate (202) is provided with a second annular hole (H5) and a second middle hole (H6), the second middle hole (H6) is arranged at the center of the first fixing plate (201), a plurality of groups of second annular holes (H5) are uniformly and circumferentially arranged around the second middle hole (H6), the first annular hole (H3) and the second annular hole (H5) are opposite, and the valve tube (101) penetrates through and is rotationally connected with the second middle hole (H6);
the number of the first fixing bolts (203) is half of the number of the first annular holes (H3), and the first fixing bolts (203) are installed on the first annular holes (H3) at intervals;
the first fixing bolt (203) comprises a first stud (203 a), a first nut (203 b) and a second nut (203 c);
the first fixing plate (201) is fixed between the first stud (203 a) and the first nut (203 b), and the translation plate (202) is sleeved outside the first stud (203 a) and is arranged between the first nut (203 b) and the second nut (203 c);
the adjusting assembly (200) further comprises a second fixing plate (207), a rotating plate (208) and a second fixing bolt (209);
the second fixing plate (207) is arranged outside the other end of the valve tube (101) relative to the first fixing plate (201);
the rotating plate (208) is arranged on one side of the second fixing plate (207);
the second fixing bolt (209) is connected with the second fixing plate (207) and the rotating plate (208);
a third annular hole (H7) and a third middle hole (H8) are formed in the second fixing plate (207), the third annular hole (H7) is opposite to the first annular hole (H3), and the valve tube (101) is fixedly connected with the third middle hole (H8);
the rotary plate (208) is provided with four annular holes (H9), four arc holes (H10) and four middle holes (H11), the four middle holes (H11) are arranged at the center of the rotary plate (208), the four annular holes (H9) are uniformly and circumferentially arranged outside the four middle holes (H11), the number of the four annular holes (H9) is half of the number of the first annular holes (H3), the number of the four arc holes (H10) is the same as the number of the four annular holes (H9), and the four arc holes (H10) are uniformly arranged between the four annular holes (H9);
the second fixing bolts (209) are provided with a plurality of groups and are in one-to-one correspondence with the fourth arc holes (H10), and the second fixing bolts (209) are installed on the third annular holes (H7) at intervals; the second fixing bolt (209) penetrates through the fourth arc hole (H10);
the second fixing bolt (209) comprises a second stud (209 a), a third nut (209 b), a fourth nut (209 c) and a fifth nut (209 d); the second fixing plate (207) is fixed between the second stud (209 a) and the third nut (209 b), and the rotating plate (208) is fixed between the fourth nut (209 c) and the fifth nut (209 d);
the adjusting component (200) further comprises a first movable bolt (204), a tightening rod (205) and a second movable bolt (206);
the first movable bolts (204) are arranged on the first annular hole (H3) at intervals, and the first movable bolts (204) are arranged on one side of the first fixed bolts (203);
one end of the tightening rod (205) is rotationally connected with the end part of the first movable bolt (204), and the other end of the tightening rod (205) is rotationally connected with the end part of the second movable bolt (206);
the second movable bolts (206) are arranged on the third annular hole (H7) at intervals, and the second movable bolts (206) are arranged on one side of the second fixed bolts (209);
the transmission assembly (300) further comprises a limit bolt (304), a handle (305) and a fixed shell (308);
the fixed shell (308) is arranged outside the face gear (301), one end of the fixed shell (308) is rotationally connected with the outer wall of the face gear (301), and the other end of the fixed shell is fixedly connected with the outer wall of the first fixed plate (201);
the handle (305) is arranged outside the fixed shell (308), the top of the upper valve rod (103) is fixedly connected with one end of the handle (305), and a fixed hole (H12) is formed in the center of the handle (305);
the limit bolt (304) penetrates through the fixed shell (308) and penetrates through the driven gear (302).
2. The butterfly valve for zero-output heat supply modification of a low pressure cylinder according to claim 1, wherein:
the face gear (301) is tubular, and the inside of the toothless end of the face gear (301) is fixedly connected with the rotating plate (208);
the driven gear (302) is arranged between the driving gear (303) and the face gear (301);
the center of the driving gear (303) is fixedly connected with the upper valve rod (103).
3. The butterfly valve for zero-output heat supply modification of a low pressure cylinder according to claim 2, wherein:
the transmission assembly (300) further comprises a limiting block (306) and a limiting spring (307), the limiting spring (307) is arranged inside one end of the limiting bolt (304), the limiting block (306) is fixedly connected with the limiting spring (307) and protrudes out of one end of the limiting bolt (304), and the limiting block (306) is matched with the fixing hole (H12) in the center of the handle (305).
CN202311372368.6A 2023-10-23 2023-10-23 Butterfly valve for low-pressure cylinder zero-output heat supply transformation Active CN117108757B (en)

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CN202311372368.6A CN117108757B (en) 2023-10-23 2023-10-23 Butterfly valve for low-pressure cylinder zero-output heat supply transformation

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Application Number Priority Date Filing Date Title
CN202311372368.6A CN117108757B (en) 2023-10-23 2023-10-23 Butterfly valve for low-pressure cylinder zero-output heat supply transformation

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CN117108757B true CN117108757B (en) 2024-01-26

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0160828A1 (en) * 1984-04-10 1985-11-13 Ferdi W. Brücken Valve for fluid-transporting pipes
CN206017775U (en) * 2016-08-26 2017-03-15 江苏苏盐阀门机械有限公司 A kind of butterfly valve of good sealing effect
KR20180034020A (en) * 2016-09-27 2018-04-04 동아대학교 산학협력단 Dual cylinder valve assembly
CN114352754A (en) * 2021-12-21 2022-04-15 三峡大学 Water conservancy choke valve that can quantitative control throttle speed
CN114704654A (en) * 2022-04-12 2022-07-05 杨兰 Pre-decompression butterfly valve
CN217481988U (en) * 2022-03-24 2022-09-23 伯睿特(上海)流体科技有限公司 Butterfly valve with multiple sealing structure
CN115823269A (en) * 2022-12-19 2023-03-21 广东福斯特流体技术有限公司 Worm wheel and worm direct insertion type butterfly valve and installation method thereof
CN219712353U (en) * 2023-03-24 2023-09-19 北阀集团北京阀门有限公司 Double-flange pneumatic butterfly valve

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7225825B1 (en) * 2005-12-15 2007-06-05 Hartman Brian T Valve seal and method of installing a valve seal

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0160828A1 (en) * 1984-04-10 1985-11-13 Ferdi W. Brücken Valve for fluid-transporting pipes
CN206017775U (en) * 2016-08-26 2017-03-15 江苏苏盐阀门机械有限公司 A kind of butterfly valve of good sealing effect
KR20180034020A (en) * 2016-09-27 2018-04-04 동아대학교 산학협력단 Dual cylinder valve assembly
CN114352754A (en) * 2021-12-21 2022-04-15 三峡大学 Water conservancy choke valve that can quantitative control throttle speed
CN217481988U (en) * 2022-03-24 2022-09-23 伯睿特(上海)流体科技有限公司 Butterfly valve with multiple sealing structure
CN114704654A (en) * 2022-04-12 2022-07-05 杨兰 Pre-decompression butterfly valve
CN115823269A (en) * 2022-12-19 2023-03-21 广东福斯特流体技术有限公司 Worm wheel and worm direct insertion type butterfly valve and installation method thereof
CN219712353U (en) * 2023-03-24 2023-09-19 北阀集团北京阀门有限公司 Double-flange pneumatic butterfly valve

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