CN210739437U - Emergency cut-off valve for fluorine-lined high-risk medium - Google Patents
Emergency cut-off valve for fluorine-lined high-risk medium Download PDFInfo
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- CN210739437U CN210739437U CN201921577624.4U CN201921577624U CN210739437U CN 210739437 U CN210739437 U CN 210739437U CN 201921577624 U CN201921577624 U CN 201921577624U CN 210739437 U CN210739437 U CN 210739437U
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Abstract
The utility model belongs to the technical field of trip valves, concretely relates to fluorine-lined high-risk medium emergency trip valve, including valve body, valve ball, valve rod, swing arm, support, the valve body has an inner chamber, the center of the inner chamber is spherical, the valve ball is located spherical inner chamber, the valve ball has a liquid flow channel, the outer surface of the valve ball is laminated with the inner wall of spherical inner chamber, the support is welded on the valve body, the cylindrical block and the support are both provided with vertical through holes, the swing arm passes through the through holes of the cylindrical block and the support, the rotary disk is provided with two spacing holes, the corresponding cylindrical block surface below the two spacing holes is provided with two blind holes, and the spacing pin is inserted after the two spacing holes are aligned with the corresponding blind holes; the utility model is lined with fluoroplastic layers on the inner wall of the inner cavity, the surface of the valve rod and the surface of the valve ball, and can work well in strong corrosive media such as various acid, alkali, salt and the like and other organic solvents; the utility model discloses the cooperation of valve ball and inner chamber has that the circulation ability is big, and the flow resistance is little, simple to operate, and the maintenance is simple, advantages such as security height.
Description
Technical Field
The utility model belongs to the technical field of the trip valve, concretely relates to lining fluorine high-risk medium emergency cut-off valve.
Background
Strong acid, alkali etc. are as high-risk chemical industry production product, have high corrosivity, need carry through the continuous area pressure of pipeline, carry if meet accident and need promptly cut off the pipeline, consequently need install the emergency cut-off valve on pipeline to the pipeline can be operated under emergency accident's condition and promptly cut off of pipeline, current emergency cut-off valve has following defect:
(1) due to the particularity of the high-risk chemical industry, when high-risk media are transmitted, the valve body is easily corroded and damaged, and the performance of the valve body is influenced;
(2) part manually operation's quick action emergency valve receives external force vibrations or under the interior fluid impact effect of valve body, and the valve ball in the valve body is rotatory the skew easily, influences the security of trip valve.
SUMMERY OF THE UTILITY MODEL
To the technical problem above, the utility model aims to provide a lining fluorine high-risk medium emergency cut-off valve.
The utility model discloses a lining fluorine high-risk medium emergency cut-off valve, including valve body, the valve ball, the valve rod, the swing arm, and a support, the valve body has the inner chamber, inner chamber center department is spherical, the valve ball is located spherical inner chamber, the valve ball has flow channel, the valve ball surface laminates with spherical inner chamber inner wall, valve rod and valve ball formula structure as an organic whole, the scaffold weldment is on the valve body, the welding of support top has the cylindricality piece, cylindricality piece and support all are equipped with vertical through-hole, the swing arm passes the through-hole of cylindricality piece and support, the swing arm bottom welds with the valve rod, the swing arm top welds with the rotary disk above the cylindricality piece, be equipped with two spacing holes on the rotary disk, the cylindricality piece surface that corresponds below two spacing holes is equipped with two blind holes, insert the spacer pin after two spacing holes;
wherein: fluoroplastic layers are lined on the inner wall of the inner cavity, the surface of the valve rod and the surface of the valve ball, and the fluoroplastic layers are formed on the surface of the base body through thermoplasticity.
The valve seat is arranged on the contact surface of the valve ball and the inner cavity.
And a packing pressing sleeve for sealing is arranged on the contact surface of the valve rod and the valve body.
And a sealing ring for shaft holes for sealing the rotary rod is fixed on the support, and the rotary rod penetrates through the sealing ring.
The surface of the valve rod is provided with a fluorine rubber O-shaped ring.
The fluoroplastic layer material is F46 or PFA.
The two limiting holes are aligned with the corresponding blind holes and then inserted into the limiting pins to limit, and the liquid flow channel of the valve ball and the inner cavity are on the same straight line.
The circumferential surface of the rotating disc is provided with an anti-slip layer.
The thickness of the fluoroplastic layer is 2.5-6 mm.
Compared with the prior art, the utility model, following beneficial effect has.
(1) The utility model is lined with fluoroplastic layer on the inner wall of the inner cavity, the surface of the valve rod and the surface of the valve ball, and can work perfectly in strong corrosive medium;
(2) the matching of the valve ball and the inner cavity of the utility model has the advantages of large circulation capacity, small flow resistance, convenient installation, simple maintenance, etc.;
(3) the rotary disc can be limited by the limiting pin, so that the rotary ball of the emergency cut-off valve can be prevented from rotating and deviating under the action of external force vibration or fluid impact in the valve body, and the safety is enhanced;
(4) the utility model discloses ball valve and valve rod formula structure as an organic whole have stopped because pressure variation arouses the valve rod to rush out the possibility of bearing spare, prevent to cause the valve ball to drop because pipeline pressure fluctuation, have guaranteed safety in utilization.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic view of the installation of the rotary table and the limit pin in fig. 1.
In the figure: 1. the device comprises a limiting pin 2, a rotating disk 3, a cylindrical block 4, a sealing ring 5, a rotating rod 6, a valve rod 7, a fluoroplastic layer 8, an inner cavity 9, a valve body 10, a valve seat 11, a valve ball 12, a liquid flow channel 13, a fluorine rubber O-shaped ring 14, a packing pressing sleeve 15, a support 16 and a limiting hole.
Detailed Description
The invention relates to an emergency cut-off valve for fluorine-lined high-risk media, which comprises a valve body 9, a valve ball 11 and a valve rod 6, the rotary rod 5 and the support 15, the valve body 9 is provided with an inner cavity 8, the center of the inner cavity 8 is spherical, the valve ball 11 is positioned in the spherical inner cavity, the valve ball 11 is provided with a liquid flow channel 12, the outer surface of the valve ball 11 is attached to the inner wall of the spherical inner cavity, the valve rod 6 and the valve ball 11 are of an integrated structure, the support 15 is welded on the valve body 9, the top end of the support 15 is welded with the cylindrical block 3, the cylindrical block 3 and the support 15 are both provided with vertical through holes, the rotary rod 5 penetrates through the through holes of the cylindrical block 3 and the support 15, the bottom end of the rotary rod 5 is welded with the valve rod 6, the top end of the rotary rod 5 is welded with the rotary disk 2 above the cylindrical block 3, the rotary disk 2 is provided with two limiting holes 16, the surfaces of the cylindrical blocks 3 corresponding to the lower;
wherein:
the inner wall of the inner cavity 8, the surface of the valve rod 6 and the surface of the valve ball 11 are lined with fluoroplastic layers 7.
The valve ball 11 is provided with a valve seat 10 on the contact surface with the inner cavity 8.
And a packing pressing sleeve 14 for sealing is arranged on the contact surface of the valve rod 6 and the valve body 9.
A seal ring 4 for sealing the shaft hole of the swing rod 5 is fixed on the support 15, and the swing rod 5 penetrates through the seal ring 4.
The surface of the valve rod 6 is provided with a fluorine rubber O-shaped ring 13.
The fluoroplastic layer 7 is made of F46.
The two limiting holes 16 are aligned with the corresponding blind holes and then inserted into the limiting pin 1 for limiting, and the liquid flow channel 12 of the valve ball 11 and the inner cavity 8 are on the same straight line.
The circumferential surface of the rotating disk 2 is provided with an anti-slip layer.
The fluoroplastic layer 7 has a thickness of 4 mm.
Claims (9)
1. The utility model provides a lining fluorine high-risk medium emergency cut-off valve which characterized in that: comprises a valve body (9), a valve ball (11), a valve rod (6), a rotary rod (5) and a support (15), wherein the valve body (9) is provided with an inner cavity (8), the center of the inner cavity (8) is spherical, the valve ball (11) is positioned in the spherical inner cavity, the valve ball (11) is provided with a liquid flow channel (12), the outer surface of the valve ball (11) is attached to the inner wall of the spherical inner cavity, the valve rod (6) and the valve ball (11) are of an integral structure, the support (15) is welded on the valve body (9), a cylindrical block (3) is welded at the top end of the support (15), both the cylindrical block (3) and the support (15) are provided with vertical through holes, the rotary rod (5) penetrates through the through holes of the cylindrical block (3) and the support (15), the bottom end of the rotary rod (5) is welded with the valve rod (6), the top end of the rotary rod (5) is welded with a rotary disk, two blind holes are formed in the surface of the cylindrical block (3) corresponding to the lower portions of the two limiting holes (16), and the two limiting holes (16) are aligned with the corresponding blind holes and then inserted into the limiting pins (1);
wherein: fluoroplastic layers (7) are lined on the inner wall of the inner cavity (8), the surface of the valve rod (6) and the surface of the valve ball (11).
2. The fluorine-lined high-risk medium emergency cutoff valve according to claim 1, characterized in that: the valve ball (11) is provided with a valve seat (10) on the contact surface with the inner cavity (8).
3. The fluorine-lined high-risk medium emergency cutoff valve according to claim 1, characterized in that: and a packing pressing sleeve (14) for sealing is arranged on the contact surface of the valve rod (6) and the valve body (9).
4. The fluorine-lined high-risk medium emergency cutoff valve according to claim 1, characterized in that: a sealing ring (4) for shaft holes for sealing the rotating rod (5) is fixed on the support (15), and the rotating rod (5) penetrates through the sealing ring (4).
5. The fluorine-lined high-risk medium emergency cutoff valve according to claim 1, characterized in that: the surface of the valve rod (6) is provided with a fluorine rubber O-shaped ring (13).
6. The fluorine-lined high-risk medium emergency cutoff valve according to claim 1, characterized in that: the material of the fluoroplastic layer (7) is F46 or PFA.
7. The fluorine-lined high-risk medium emergency cutoff valve according to claim 1, characterized in that: the two limiting holes (16) are aligned with the corresponding blind holes and then inserted into the limiting pin (1) for limiting, and the liquid flow channel (12) of the valve ball (11) and the inner cavity (8) are on the same straight line.
8. The fluorine-lined high-risk medium emergency cutoff valve according to claim 1, characterized in that: the circumferential surface of the rotating disc (2) is provided with an anti-slip layer.
9. The fluorine-lined high-risk medium emergency cutoff valve according to claim 1, characterized in that: the thickness of the fluoroplastic layer (7) is 2.5-6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577624.4U CN210739437U (en) | 2019-09-20 | 2019-09-20 | Emergency cut-off valve for fluorine-lined high-risk medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921577624.4U CN210739437U (en) | 2019-09-20 | 2019-09-20 | Emergency cut-off valve for fluorine-lined high-risk medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210739437U true CN210739437U (en) | 2020-06-12 |
Family
ID=70980744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921577624.4U Active CN210739437U (en) | 2019-09-20 | 2019-09-20 | Emergency cut-off valve for fluorine-lined high-risk medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210739437U (en) |
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2019
- 2019-09-20 CN CN201921577624.4U patent/CN210739437U/en active Active
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