CN209557696U - A kind of special operation condition bleed valve - Google Patents
A kind of special operation condition bleed valve Download PDFInfo
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- CN209557696U CN209557696U CN201822240864.7U CN201822240864U CN209557696U CN 209557696 U CN209557696 U CN 209557696U CN 201822240864 U CN201822240864 U CN 201822240864U CN 209557696 U CN209557696 U CN 209557696U
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- runner
- axle center
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Abstract
The utility model discloses a kind of special operation condition bleed valves, including excretion valve body and the runner being arranged in excretion valve body, excretion valve body is in being provided with the spool that can block or be connected runner in runner, draining valve body includes the axle center column for being fixedly connected sequentially and being coaxially disposed, connecting column and sealing column, the external screw thread that can be threadedly engaged with valve is provided in the outer peripheral sidewall of connecting column, metal ball is arranged on the outer wall of axle center column, the inner wall of metal ball and the outer wall of axle center column abut against, the both ends of metal ball are provided with chamfering, so that metal ball ring forms the thin structure in thick middle both ends, one end of metal ball is abutted against with connecting column, other end abutting has the fixation step being set in valve.The utility model has the following beneficial effects: this bleed valve can be suitably used for high/low temperature or high corrosion every field, and then applied widely with multipurpose since the medium temperature section that can bear is big and it is corrosion resistant to have the advantages that.
Description
Technical field
The utility model relates to a kind of bleed valve, in particular to a kind of special operation condition bleed valve.
Background technique
Bleed valve pollutes valve with having the function that discharge retentate, reducing medium by being arranged on valve body.It is existing
Bleed valve notification number be CN201554916U Chinese patent as described in a kind of bleed valve valve body, the valve of this bleed valve
Body is directly to be connect by screw thread with valve body and realize sealing.Therefore the accuracy of screw machining that should be located at excretion valve surface is wanted
Height, and to fit like a glove with valve body, just it is able to achieve sealing.But it will lead to learies increasing since screw thread process is very fine.
If need to repair, sealing is realized due to being connected through a screw thread, that be twisted when assembling is quite tight, so that when removing
It can grit one's teeth, can not remove, to improve the production cost and use cost of bleed valve.
The use process of above-mentioned bleed valve, a kind of fixed ball as described in the Chinese patent of Publication No. CN106594311A
Valve (as shown in Fig. 7).The ball valve includes excretion valve body 1, described since ball valve is only one of all multiple types of valve
Draining valve body 1 can be located in valve 16, be connected with the horizontal through hole 17 in valve 16, the delay intracavitary for drain valve
Object, to keep valve chamber cleaning inside.When installation, the outer-hexagonal rotation section on excretion valve body 1 is rotated by box spanner, from
And excretion valve body 1 is turned in valve 16.Specifically, above-mentioned valve 16 further include have can to excretion valve body
The 1 fixation step 13 limited, side and the excretion valve body 1 of fixed step 13 abut against.
Based on the above issues, the existing one kind that provides is not necessary to guaranty that screw thread process is very fine, but is able to maintain excretion
The solution of valve and valve body junction leakproofness.This method passes through the external screw thread table that is wrapped in plastic film on bleed valve
Face, then connect with valve body screw thread.Wherein, plastic film is mixed in the leakproofness that its junction is improved between bleed valve and valve body
Energy.But this method is not suitable for circulate high temperature or the valve with corrosive media.When medium temperature is higher or is corrosion
Property medium when, plastic film is easy fusing or corrosion, also uncomfortable if operating condition is can have loss of refrigeration capacity under ultra-low temperature surroundings
For special operation condition.And then lead to bleed valve and valve body junction external leakage, there are severe compromises, easily cause uncontrollable peace
Full accident.
In conclusion the applicant develops the bleed valve of pipeline or valve under a kind of applicable special operation condition.The excretion
Valve can be suitably used for high/low temperature or high corrosion be each since the medium temperature section that can bear is big and it is corrosion resistant to have the advantages that
A field, so it is applied widely with multipurpose.
Utility model content
The purpose of the utility model is to provide a kind of special operation condition bleed valve, this bleed valve is due to the Jie that can bear
Matter temperature range is big and has the advantages that corrosion resistant, therefore can be suitably used for high/low temperature or high corrosion every field, and then applicable model
It encloses extensively with multipurpose.
The above-mentioned technical purpose of the utility model has the technical scheme that a kind of special operation condition row
Valve is let out, including excretion valve body and the runner being arranged in excretion valve body, the excretion valve body in runner in being provided with
The spool of runner can be blocked or be connected, the excretion valve body includes the axle center column for being fixedly connected sequentially and being coaxially disposed, connects
Column and sealing column are connect, the external screw thread that can be threadedly engaged with valve, the axle center are provided in the outer peripheral sidewall of the connecting column
Metal ball is arranged on the outer wall of column, the outer wall of the inner wall and axle center column of the metal ball abuts against, the metal ball
Both ends be provided with chamfering so that the metal ball ring forms the thin structure in thick middle both ends, the one of the metal ball
End is abutted against with connecting column, and other end abutting has the fixation step being set in valve.
The utility model is further arranged to: the cross-sectional area of the connecting column is less than the cross-sectional area of sealing column and is greater than
The cross-sectional area of axle center column.
The utility model is further arranged to: the sealing column be fixedly connected with far from the side of connecting column in hexagon
The pedestal of cylinder.
The utility model is further arranged to: the sealing column the side of connecting column is provided with cyclic annular mounting groove,
The ring-type mounting groove is built-in with the sealing element that sealing function can be played to bleed valve and valve junction, the sealing element
Height is higher than the depth of cyclic annular mounting groove, so that one end of the sealing element protrudes from cyclic annular mounting groove.
The utility model is further arranged to: the sealing element is graphite circle or metal composite pad.
The utility model is further arranged to: two end chamfers positioned at the metal ball are all larger than 45 degree.
The utility model is further arranged to: the material of the metal ball is stainless steel or copper.
The utility model is further arranged to: the runner includes flow channel entry point and runner exit, and the runner enters
Mouth is located at the axle center of axle center column, and the runner exit is located on the side wall of sealing column, and the runner exit is porus excretorius, described
The axial line of runner exit and the axial line of flow channel entry point are vertically arranged, and the spool is located at runner exit and flow channel entry point
Axle center intersection.
In conclusion the utility model has the following beneficial effects:
(1) install when, by box spanner rotation be in hexagon cylinder pedestal, thus by connecting column external screw thread with
It is threadedly coupled in valve for installing the external screw thread of bleed valve.When the process for carrying out bleed valve to be threadedly coupled cooperation with valve
In, metal ball is gradually shortened with the distance between the fixation step in valve, and finally in mutually abutting shape.If technical staff
Continuing to rotate box spanner, then bleed valve progresses into valve, promotes the distance between fixation step and connecting column in valve
It is gradually reduced to less than the length of metal ball, so that metal ball both ends are compressed.Due to the inclined-plane at the both ends of metal ball
Put forth effort in advance, and metal ball is in the design feature of the thin thick middle in both ends, the inclined-plane positioned at metal both ends is respectively by from two
The extruding force at end, so that the inclined-plane at metal ball both ends can only squeeze, expand and widen, the both ends of final metal ball toward centre
Equal axle center column realizes face sealing.Due to metal ball using stainless steel or copper at, can guarantee bleed valve under special operation condition with
The sealing performance of valve junction；
(2) install when, by box spanner rotation be in hexagon cylinder pedestal, thus by connecting column external screw thread with
It is threadedly coupled in valve for installing the external screw thread of bleed valve.When bleed valve and valve, which are connected through a screw thread, to be finished, protrude from
The sealing element of cyclic annular mounting groove can be abutted against and be squeezed with valve, promote extruded sealing element right in the part of cyclic annular mounting groove
Cyclic annular mounting groove inner wall is squeezed, to promote the sealing performance of bleed valve Yu valve junction.Sealing element using graphite circle or
Metal composite advance expenditure support is situated between with high temperature resistant, corrosion resistance characteristic with promoting bleed valve to different temperatures medium and high corrosion
The scope of application of matter；
(3) by two seals defence line, per pass seal defence line and can guarantee the junction of bleed valve and valve 300 DEG C with
The leakproofness in leakproofness and high corrosion medium transmission process during upper high-temperature medium transmission, so that can bear
Medium temperature section it is big, therefore can be suitably used for high/low temperature and high corrosion every field, and then applied widely with more
Purposes.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is the structural schematic diagram for being equipped with sealing element；
Fig. 3 is the structural schematic diagram of metal ball；
Fig. 4 is the structure sectional view of Fig. 3；
Fig. 5 is the structural schematic diagram of the runner and spool in Fig. 1；
Fig. 6 is bleed valve in the structural schematic diagram with valve in the mounted state；
Fig. 7 is bleed valve in the prior art and the structural schematic diagram of valve in the mounted state.
Appended drawing reference: 1, valve body is drained；2, runner；3, spool；4, axle center column；5, connecting column；6, sealing column；7, bottom
Seat；8, external screw thread；9, cyclic annular mounting groove；10, sealing element；11, metal ball；12, chamfering；13, fixed step；14, runner enters
Mouthful；15, runner exit；16, valve；17, horizontal through hole.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
As shown in Figure 1, Figure 2 and shown in Fig. 5, a kind of special operation condition bleed valve, including excretion valve body 1 and setting are being drained
Runner 2 in valve body 1, excretion valve body 1 is in being provided with the spool 3 that can block or be connected runner 2 in runner 2.Bleed valve sheet
Body includes the axle center column 4, connecting column 5 and sealing column 6 for being fixedly connected sequentially and being coaxially disposed, and 6 institute of sealing column is far from connection
The side of column 5 is fixedly connected with the pedestal 7 in hexagon cylinder.The cross-sectional area of connecting column 5 is less than the cross-sectional area of sealing column 6
And it is greater than the cross-sectional area of axle center column 4.
The external screw thread 8 that can be threadedly engaged with valve, the direction connection of 6 institutes of sealing column are provided in the outer peripheral sidewall of connecting column 5
The side of column 5 is provided with cyclic annular mounting groove 9, and cyclic annular mounting groove 9, which is built-in with, to play sealing to bleed valve and valve junction
The sealing element 10 of effect, the height of sealing element 10 is higher than the depth of cyclic annular mounting groove 9, so that one end of sealing element 10 protrudes from ring
Shape mounting groove 9.The sealing element 10 is preferably graphite circle or metal composite pad.
It as shown in Figure 2, Figure 5 and Figure 6, is in the pedestal 7 of hexagon cylinder by box spanner rotation, thus will when installation
External screw thread 8 on connecting column 5 is threadedly coupled in valve for installing the external screw thread 8 of bleed valve.When bleed valve and valve pass through
When threaded connection finishes, the sealing element 10 for protruding from cyclic annular mounting groove 9 can be abutted against and be squeezed with valve, be promoted extruded close
Sealing 10 squeezes cyclic annular 9 inner wall of mounting groove in the part of cyclic annular mounting groove 9, to promote bleed valve and valve junction
Sealing performance.Sealing element 10 is supportted using graphite circle or metal composite advance expenditure, can high temperature resistant and high-corrosion resistant, to promote bleed valve
To the scope of application of different temperatures medium and high corrosion medium.
As shown in Fig. 1, Fig. 3 and Fig. 6, be arranged with metal ball 11 on the outer wall of axle center column 4, the inner wall of metal ball 11 with
The outer wall of axle center column 4 abuts against.The both ends of metal ball 11 are provided with chamfering 12, so that metal ball 11 forms thick middle
The thin structure in both ends.One end of metal ball 11 is abutted against with connecting column 5, and other end abutting has the fixation step in valve
13.The material of metal ball 11 is preferably that the material of stainless steel, copper or other operating conditions that are consistent is made.
As shown in figure 4,11 liang of end chamfers 12 of metal ball are all larger than 45 degree, so that 12 cambered surface gradual change amplitude of chamfering is gentle,
It is smoother, be more advantageous to 11 both ends stress of metal ball squeeze to cause deformation.
For ease of understanding, by taking the Chinese patent of the CN106594311A mentioned in background technique as an example.Such as Fig. 1 and Fig. 6
It is shown, it is in the pedestal 7 of hexagon cylinder by box spanner rotation, thus by external screw thread 8 and valve on connecting column 5 when installation
It is threadedly coupled in door for installing the external screw thread 8 of bleed valve.During bleed valve and valve are carried out threaded connection cooperation,
Metal ball 11 is gradually shortened with the distance between the fixation step 13 in valve, and finally in mutually abutting shape.If technology people
Member continues to rotate box spanner, and then bleed valve progresses into valve, promotes between the fixation step 13 in valve and connecting column 5
Distance be gradually reduced to less than the length of metal ball 11 so that 11 both ends of metal ball are compressed.Due to metal ball 11
The inclined-plane at both ends put forth effort in advance, and metal ball 11 is in the design feature of the thin thick middle in both ends, positioned at the inclined-plane at metal both ends
Respectively by the extruding force from both ends, so that the inclined-plane at 11 both ends of metal ball can only squeeze, expand and widen toward centre, most
Face sealing is realized with axle center column 4 in the both ends of whole metal ball 11.Since metal ball 11 using stainless steel, copper or other is consistent
The material of operating condition is made, so that metal ball 11 can guarantee the close of bleed valve and valve junction under special operation condition environment
Sealing property.
Wherein, 11 both ends of metal ball as shown in FIG. 6 are respectively by the extruding of fixed step 13 and connecting column 5, due to
With bleed valve of the present invention using being threadedly coupled, the two is located on valve valve when relatively rotating
Fixed step 13 is relatively rotated with chamfering 12 on metal ball 11, can be to coming from since chamfering 12 is smooth arc-shaped
Power on fixed step 13 carries out uniform stressed, to guarantee the 11 both ends uniform stressed deformation of metal ball.
Realize that the principle of face sealing is as follows in its 11 both ends of metal ball: since metal ball 11 is set in the outer of axle center column 4
It portion and is abutted against with axle center column 4.When 11 both ends inclined-plane of metal ball is squeezed power, extruding force is acted on inclined-plane, makes
It obtains extruding force and is decomposed into the first component toward 4 direction of axle center column and the second component toward the direction of extrusion.Wherein the first component,
It can promote both ends and the cooperation of axle center column 4 more closely of metal ball 11；Second component can by the length of metal ball 11 into
Row shortens.By under the collective effect of the first component and the second component, the both ends of metal ball 11 it is synchronous carry out toward inside contract,
Toward the deformed movement extended out, so that 11 both ends of metal ball expand and widen, and finally in the realization of 11 both ends of metal ball and axis
The face of stem 4 seals.12 inclined-plane of chamfering at the both ends of becket 11 is all larger than 45 degree, to be preferably convenient for extruding force to becket
11 both ends force.
Further, as shown in Figure 1 and Figure 5, runner 2 includes flow channel entry point 14 and runner exit 15, flow channel entry point
14 are located at the axle center of axle center column 4, and runner exit 15 is located on the side wall of sealing column 6, which is porus excretorius.Runner
The axial line of the axial line and flow channel entry point 14 of outlet 15 is vertically arranged, and spool 3 is located at runner exit 15 and flow channel entry point 14
Axle center intersection.
Claims (8)
1. a kind of special operation condition bleed valve, the runner including excretion valve body (1) and setting in excretion valve body (1)
(2), it is provided with the spool (3) that can block or be connected runner (2) in excretion valve body (1) Yu Liudao (2), it is characterized in that:
The excretion valve body includes the axle center column (4), connecting column (5) and sealing column (6) for being fixedly connected sequentially and being coaxially disposed,
Be provided with the external screw thread (8) that can be threadedly engaged with valve in the outer peripheral sidewall of the connecting column (5), the axle center column (4) it is outer
It is arranged on wall metal ball (11), the outer wall of the inner wall and axle center column (4) of the metal ball (11) abuts against, the metal
The both ends of ball (11) are provided with chamfering (12), so that the metal ball (11) forms the thin structure in thick middle both ends,
One end of the metal ball (11) is abutted against with connecting column (5), and other end abutting has the fixation step being set in valve
(13)。
2. a kind of special operation condition bleed valve according to claim 1, it is characterized in that: the cross section of the connecting column (5)
Product is less than the cross-sectional area of sealing column (6) and is greater than the cross-sectional area of axle center column (4).
3. a kind of special operation condition bleed valve according to claim 1, it is characterized in that: the sealing column (6) institute is far from even
The side for connecing column (5) is fixedly connected with pedestal (7) in hexagon cylinder.
4. a kind of special operation condition bleed valve according to claim 2, it is characterized in that: the sealing column (6) institute is towards even
The side for connecing column (5) is provided with cyclic annular mounting groove (9), and the ring-type mounting groove (9), which is built-in with, to connect bleed valve and valve
The sealing element (10) of sealing function is played at the place of connecing, and the height of the sealing element (10) is higher than the depth of cyclic annular mounting groove (9), so that
One end of the sealing element (10) protrudes from cyclic annular mounting groove (9).
5. a kind of special operation condition bleed valve according to claim 4, it is characterized in that: the sealing element (10) is graphite circle
Or metal composite pad.
6. a kind of special operation condition bleed valve according to claim 5, it is characterized in that: being located at the metal ball (11)
Two end chamfers (12) are all larger than 45 degree.
7. a kind of special operation condition bleed valve according to claim 6, it is characterized in that: the material of the metal ball (11)
For stainless steel or copper.
8. a kind of special operation condition bleed valve according to claim 7, it is characterized in that: the runner (2) includes runner
Entrance (14) and runner exit (15), the flow channel entry point (14) are located at the axle center of axle center column (4), the runner exit
(15) positioned at sealing column (6) side wall on, the runner exit (15) be porus excretorius, the axial line of the runner exit (15) with
The axial line of flow channel entry point (14) is vertically arranged, and the spool (3) is located at the axis of runner exit (15) Yu flow channel entry point (14)
Heart intersection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822240864.7U CN209557696U (en) | 2018-12-28 | 2018-12-28 | A kind of special operation condition bleed valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822240864.7U CN209557696U (en) | 2018-12-28 | 2018-12-28 | A kind of special operation condition bleed valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209557696U true CN209557696U (en) | 2019-10-29 |
Family
ID=68304543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822240864.7U Active CN209557696U (en) | 2018-12-28 | 2018-12-28 | A kind of special operation condition bleed valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209557696U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578606A (en) * | 2018-12-28 | 2019-04-05 | 特技阀门集团有限公司 | A kind of special operation condition bleed valve |
-
2018
- 2018-12-28 CN CN201822240864.7U patent/CN209557696U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109578606A (en) * | 2018-12-28 | 2019-04-05 | 特技阀门集团有限公司 | A kind of special operation condition bleed valve |
| CN109578606B (en) * | 2018-12-28 | 2023-12-12 | 特技阀门集团有限公司 | Drain valve for special working condition |
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