CN204852424U - Small -bore ultra -low temperature ball valve that floats - Google Patents
Small -bore ultra -low temperature ball valve that floats Download PDFInfo
- Publication number
- CN204852424U CN204852424U CN201520407682.8U CN201520407682U CN204852424U CN 204852424 U CN204852424 U CN 204852424U CN 201520407682 U CN201520407682 U CN 201520407682U CN 204852424 U CN204852424 U CN 204852424U
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- CN
- China
- Prior art keywords
- valve
- spheroid
- valve body
- medium
- inlet passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a ball valve, in particular to small -bore ultra -low temperature ball valve that floats. The utility model provides a following technical scheme: a small -bore ultra -low temperature ball valve that floats, which comprises a valve body, the valve gap of being connected with the valve body, be equipped with the medium admission passage on the valve body, the chamber is placed to medium outflow passageway and spheroid, the ball valve is placed the intracavity and is equipped with the spheroid, be equipped with the disk seat between medium admission passage and medium outflow passageway and the spheroid respectively, be equipped with on the valve body extend to the spheroid place the intracavity and with the valve rod of spheroid linkage and the driving source of drive valve rod, disk seat between medium admission passage and the spheroid is the metal -support disk seat, be equipped with the sealed piece of hard metal alloy on this metal -support disk seat and the ball sealing terminal surface, the metal -support disk seat for and the other end of ball sealing one end and valve body between be equipped with the spring. Adopt above -mentioned technical scheme, provide one kind the pretightning force is big, the leakproofness good, small -bore ultra -low temperature ball valve that floats safe in utilization.
Description
Technical field
The utility model relates to a kind of ball valve, particularly the small-bore ultralow temperature floating ball valve of one.
Background technique
Floating ball valve is that a kind of spheroid can float, and under pressure medium, spheroid can produce certain displacement, thus sealing is protected.And ultralow temperature floating ball valve mainly use with chemical industry and petroleum pipeline in use.
This type of floating ball valve mainly comprises valve body, the valve gap that is connected with valve body forms, the spheroid placed cavity that valve body is provided with medium inlet passage, medium flow pass and is located between medium inlet passage and medium flow pass, be provided with in ball valve placed cavity and impel medium inlet passage and medium to flow out channel conductive or closed spheroid, valve body is provided with and extends in spheroid placed cavity and the driving source of the valve rod linked with spheroid and actuate valve stem.This type of ball seat place pretightening force is poor, and spheroid is in use difficult to ensure with the sealing at medium flow pass place, and easily occurs larger pressure reduction and the temperature difference between spheroid placed cavity and medium inlet passage and pipeline, there is larger potential safety hazard.
Summary of the invention
For the deficiency that prior art exists, the utility model provides that a kind of pretightening force is large, the small-bore ultralow temperature floating ball valve of good airproof performance, use safety.
For achieving the above object, the utility model provides following technological scheme: a kind of small-bore ultralow temperature floating ball valve, include valve body, the valve gap be connected with valve body, valve body is provided with medium inlet passage, medium flow pass and the spheroid placed cavity be located between medium inlet passage and medium flow pass, be provided with in ball valve placed cavity and impel medium inlet passage and medium to flow out channel conductive or closed spheroid, medium inlet passage and be respectively equipped with valve seat between medium flow pass and spheroid, valve body is provided with and extends in spheroid placed cavity and the driving source of the valve rod linked with spheroid and actuate valve stem, it is characterized in that: the valve seat between described medium inlet passage and spheroid is metallic support valve seat, this metallic support valve seat and ball seal end face are provided with hard metal alloys sealing block, metallic support valve seat is provided with spring relative between the other end of ball seal one end and valve body.
Adopt technique scheme, by arranging the metallic support valve seat with larger bearing capacity and support force between medium inlet passage and spheroid, and be provided with the spring with pretightening force between metallic support valve seat and valve body, the valve seat making spheroid have enough pretightening forces and medium flow pass place in location free procedure is implemented to seal, thus improve the sealing of valve body, and metallic support valve seat is metal material, the abrasiveness of long use to it is little, not yielding and break, long service life.
The utility model is set to further: metallic support valve seat offers one end and the conducting of spheroid placed cavity, the pilot hole of the other end and the conducting of medium inlet passage.
Adopt technique scheme, arranging like this can balance media inlet passage or the pressure reduction between pipeline and spheroid placed cavity and the temperature difference, and prevent spheroid or valve rod from freezing, the normal use for valve body provides convenience.
The utility model is further set to: valve body is positioned at the other end arranging medium outflow passage end and is provided with construction opening, valve gap is located at this construction opening place, and medium inlet passage is opened on valve gap, and the joint of valve gap and valve body is provided with lip-type packing.
Adopt technique scheme, the installation being convenient to valve inner parts is set like this, and the good airproof performance between valve body and valve gap.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the I portion enlarged diagram of Fig. 1.
Embodiment
As Fig. 1, the small-bore ultralow temperature floating ball valve of one shown in Fig. 2, include valve body 1, the valve gap 2 be connected with valve body 1, valve body 1 is provided with medium inlet passage 11, medium flow pass 12 and the spheroid placed cavity 13 be located between medium inlet passage 11 and medium flow pass 12, be provided with in ball valve placed cavity 13 and impel medium inlet passage 11 and medium flow pass 12 conducting or closed spheroid 3, medium inlet passage 11 and be respectively equipped with valve seat 4 between medium flow pass 12 and spheroid 3, valve body 1 is provided with and extends in spheroid placed cavity 13 and the driving source 6 of the valve rod 5 linked with spheroid 3 and actuate valve stem 5, driving source 6 can be motor or handle, valve seat between medium inlet passage 11 and spheroid 3 is metallic support valve seat 7, this metallic support valve seat 7 is provided with hard metal alloys sealing block 71 with the seal face of spheroid 3, metallic support valve seat 7 seals between the other end of one end and valve body 1 relative to spheroid 3 and is provided with spring 72.In such scheme, by arranging the metallic support valve seat 7 with larger bearing capacity and support force between medium inlet passage 11 and spheroid 3, and be provided with the spring 72 with pretightening force between metallic support valve seat 7 and valve body 1, the valve seat 4 making spheroid 3 have enough pretightening forces and medium flow pass 12 place in location free procedure is implemented to seal, thus improve the sealing of valve body 1, and metallic support valve seat 7 is metal material, the abrasiveness of long use to it is little, not yielding and break, long service life.It should be noted that, metallic support valve seat 7 can be copper or irony or alloy, is all feasible.
In the utility model embodiment, in order to balance media inlet passage 11 or the pressure reduction between pipeline and spheroid placed cavity 13 and the temperature difference, prevent spheroid 3 or valve rod 5 from freezing, metallic support valve seat 7 offers one end and spheroid placed cavity 13 conducting, the pilot hole 73 of the other end and medium inlet passage 11 conducting.
For the ease of the installation of parts each in valve body 1, valve body 1 is positioned at the other end that medium flow pass 12 one end is set and is provided with construction opening, valve gap 2 is located at this construction opening place, and medium inlet passage 11 is opened on valve gap 2, and valve gap 2 is provided with lip-type packing 8 with the joint of valve body 1.The setting of this lip-type packing 8 impels the better tightness between valve gap 2 and valve body 1, can effectively prevent valve body 1 from occurring the situation of leaking.
Claims (3)
1. a small-bore ultralow temperature floating ball valve, include valve body, the valve gap be connected with valve body, valve body is provided with medium inlet passage, medium flow pass and the spheroid placed cavity be located between medium inlet passage and medium flow pass, be provided with in ball valve placed cavity and impel medium inlet passage and medium to flow out channel conductive or closed spheroid, medium inlet passage and be respectively equipped with valve seat between medium flow pass and spheroid, valve body is provided with and extends in spheroid placed cavity and the driving source of the valve rod linked with spheroid and actuate valve stem, it is characterized in that: the valve seat between described medium inlet passage and spheroid is metallic support valve seat, this metallic support valve seat and ball seal end face are provided with hard metal alloys sealing block, metallic support valve seat is provided with spring relative between the other end of ball seal one end and valve body.
2. small-bore ultralow temperature floating ball valve according to claim 1, is characterized in that: described metallic support valve seat offers one end and the conducting of spheroid placed cavity, the pilot hole of the other end and the conducting of medium inlet passage.
3. small-bore ultralow temperature floating ball valve according to claim 1 and 2, it is characterized in that: described valve body is positioned at the other end that medium outflow passage end is set and is provided with construction opening, valve gap is located at this construction opening place, and medium inlet passage is opened on valve gap, the joint of valve gap and valve body is provided with lip-type packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407682.8U CN204852424U (en) | 2015-06-12 | 2015-06-12 | Small -bore ultra -low temperature ball valve that floats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520407682.8U CN204852424U (en) | 2015-06-12 | 2015-06-12 | Small -bore ultra -low temperature ball valve that floats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852424U true CN204852424U (en) | 2015-12-09 |
Family
ID=54742970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520407682.8U Expired - Fee Related CN204852424U (en) | 2015-06-12 | 2015-06-12 | Small -bore ultra -low temperature ball valve that floats |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324064A (en) * | 2021-06-03 | 2021-08-31 | 苏州澎瀚阀门有限公司 | Low-temperature crystallization valve |
-
2015
- 2015-06-12 CN CN201520407682.8U patent/CN204852424U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324064A (en) * | 2021-06-03 | 2021-08-31 | 苏州澎瀚阀门有限公司 | Low-temperature crystallization valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20170612 |