CN204922070U - Ball valve is fixed to low temperature - Google Patents
Ball valve is fixed to low temperature Download PDFInfo
- Publication number
- CN204922070U CN204922070U CN201520623030.8U CN201520623030U CN204922070U CN 204922070 U CN204922070 U CN 204922070U CN 201520623030 U CN201520623030 U CN 201520623030U CN 204922070 U CN204922070 U CN 204922070U
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- spheroid
- valve
- low temperature
- leak detection
- detection mouth
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Abstract
The utility model discloses a ball valve is fixed to low temperature, including the valve body that has entrance point and exit end, set up spheroid in the valve body, disk seat, packing box on, valve gap and valve rod, a serial communication port, the valve rod axis with the coaxial setting of spheroidal rotation axis, and in spheroid fixed connection, set up the spring between disk seat and the spheroid, the disk seat is closely laminated with the spheroid under the pretension effect of spring and is realized sealing, the lower part of packing box is equipped with a leak hunting mouth, the utility model discloses can convenient, accurately detect ball valve is fixed to low temperature sealing leak volume.
Description
Technical field
The utility model relates to a kind of ball valve, particularly a kind of low temperature fixing ball valve.
Background technique
Shown in Figure 1, Conventional cryogenic fixing ball valve comprises the valve body 10 with entrance point 11 and outlet end 12, the spheroid 20 be arranged in valve body 10, valve seat 40, stuffing box 50, bonnet 60 and valve rod 30; The spin axis of valve rod 30 axis and described spheroid 10 is coaxially arranged, and is fixedly connected with in described spheroid; Arrange spring 70 between valve seat 40 and spheroid 20, sealing leak detection mouth 80 is in the bottom of valve body, and this leak detection mouth has following deficiency in valve bottom:
Shown in Figure 2, low temperature test is inconvenient, and during low temperature test, valve is placed in the test mortise 90 of filled with liquid nitrogen, and now, leak detection mouth is also in test mortise and in low temperature environment, is unfavorable for that the derivation of leakage rate detects.
Shown in Figure 3, valve, when user's onsite application, covers valve with Cold-keeping Layer 100, and now, leak detection mouth is in Cold-keeping Layer, as valve has leakage, need open leak detection mouth and detect, pull down Cold-keeping Layer, be unfavorable for maintenance.
Model utility content
The technical problems to be solved in the utility model is to provide the low temperature fixing ball valve that a kind of structure is simple, can facilitate, accurately detect seal leakage amount.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of low temperature fixing ball valve, comprises the valve body with entrance point and outlet end, the spheroid be arranged in valve body, valve seat, stuffing box, bonnet and valve rod; The spin axis of described valve rod axis and described spheroid is coaxially arranged, and is fixedly connected with in described spheroid; Arrange spring between described valve seat and spheroid, valve seat fits tightly with spheroid and realizes sealing under the pretension effect of spring; The bottom of described stuffing box is provided with a leak detection mouth.
In an embodiment of the present utility model, leave gap between described valve rod and bonnet, described leak detection mouth is communicated with gap.
In an embodiment of the present utility model, described leak detection mouth is leak detection mouth downward-sloping along the horizontal plane.
In an embodiment of the present utility model, the angle of inclination of described leak detection mouth is 5-15 °.
By technique scheme, the beneficial effects of the utility model are:
Sealing leak detection mouth position is located at the top of valve by the utility model, i.e. the outside of Cold-keeping Layer, the bottom of stuffing box, and in this position, leak detection mouth, away from Cold-keeping Layer, test mortise and low temperature environment, is conducive to fast and easy and checks leakage rate accurately.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that existing low temperature fixes ball-valve structure schematic diagram;
Fig. 2 is the scheme of installation that existing low temperature fixing ball valve is placed in filled with liquid nitrogen test flume;
Fig. 3 is the scheme of installation that existing low temperature fixing ball valve is placed in Cold-keeping Layer;
Fig. 4 is that the utility model low temperature fixes ball-valve structure schematic diagram;
Numeral and the corresponding part title represented by letter in figure:
10, valve body 11, entrance point 12, outlet end 20, spheroid 30, valve rod 40, valve seat 50, stuffing box 60, bonnet 70, spring 80, leak detection mouth 90, test mortise 100, Cold-keeping Layer.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
Shown in Figure 4, the utility model discloses a kind of low temperature fixing ball valve, comprise the valve body 10 with entrance point 11 and outlet end 12, the spheroid 20 be arranged in valve body 10, valve seat 40, stuffing box 50, bonnet 60 and valve rod 30; The spin axis of valve rod 30 axis and described spheroid 20 is coaxially arranged, and is fixedly connected with in described spheroid 20; Arrange spring 70 between valve seat 40 and spheroid 20, valve seat 40 fits tightly with spheroid and realizes sealing under the pretension effect of spring 70; The bottom of stuffing box 50 is provided with a leak detection mouth 80; When testing leakage rate, no matter be the mode adopting Fig. 2, or the mode of Fig. 3, leak detection mouth 80 all away from Cold-keeping Layer, test mortise and low temperature environment, is conducive to fast and easy and checks leakage rate accurately.
Leave gap between the utility model valve rod 30 and bonnet 60, leak detection mouth 80 is communicated with gap, which raises precision and the efficiency of inspection.
The utility model leak detection mouth 80 is leak detection mouth downward-sloping along the horizontal plane, and the angle of inclination of leak detection mouth is 5-15 °; It compares precision and efficiency that horizontally disposed leak detection mouth effectively improves inspection, and this angle of inclination is not arrange arbitrarily, if arranged greatly precision and the efficiency that also can reduce inspection, 5-15 ° in the utility model is best detection angles; It is that claimant is drawn by creative work, does not belong to the usual technological means of those skilled in the art or common practise.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a low temperature fixing ball valve, comprises the valve body with entrance point and outlet end, the spheroid be arranged in valve body, valve seat, stuffing box, bonnet and valve rod; It is characterized in that, the spin axis of described valve rod axis and described spheroid is coaxially arranged, and is fixedly connected with in described spheroid; Arrange spring between described valve seat and spheroid, valve seat fits tightly with spheroid and realizes sealing under the pretension effect of spring; The bottom of described stuffing box is provided with a leak detection mouth.
2. a kind of low temperature fixing ball valve according to claim 1, is characterized in that: leave gap between described valve rod and bonnet, and described leak detection mouth is communicated with gap.
3. a kind of low temperature fixing ball valve according to claim 1, is characterized in that: described leak detection mouth is leak detection mouth downward-sloping along the horizontal plane.
4. a kind of low temperature fixing ball valve according to claim 1, is characterized in that: the angle of inclination of described leak detection mouth is 5-15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520623030.8U CN204922070U (en) | 2015-08-18 | 2015-08-18 | Ball valve is fixed to low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520623030.8U CN204922070U (en) | 2015-08-18 | 2015-08-18 | Ball valve is fixed to low temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922070U true CN204922070U (en) | 2015-12-30 |
Family
ID=54971199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520623030.8U Active CN204922070U (en) | 2015-08-18 | 2015-08-18 | Ball valve is fixed to low temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204922070U (en) |
-
2015
- 2015-08-18 CN CN201520623030.8U patent/CN204922070U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |