CN203099328U - Sealing joint of liquid level sensor signal line of LNG (Liquefied Natural Gas) cylinder - Google Patents
Sealing joint of liquid level sensor signal line of LNG (Liquefied Natural Gas) cylinder Download PDFInfo
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- CN203099328U CN203099328U CN 201320012259 CN201320012259U CN203099328U CN 203099328 U CN203099328 U CN 203099328U CN 201320012259 CN201320012259 CN 201320012259 CN 201320012259 U CN201320012259 U CN 201320012259U CN 203099328 U CN203099328 U CN 203099328U
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- sealing
- level sensor
- liquid level
- permanent joint
- joint
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Abstract
The utility model discloses a sealing joint of a liquid level sensor signal line of an LNG (Liquefied Natural Gas) cylinder. The sealing joint comprises a lower fixed joint (6) fixed on the LNG cylinder, a sealing element (4), an upper fixed joint (2) and the liquid level sensor signal line (1), wherein an upper conical sealing mouth (3) is formed in the sealing end of the upper fixed joint (2), the sealing element (4) is provided with a conical part matched with the upper conical sealing mouth (3), when the upper fixed joint (2) is screwed up, the conical part of the sealing element (4) is tightly pressed by the upper conical sealing mouth (3) of the upper fixed joint (2), the sealing element (4) is deformed to tightly press the liquid level sensor signal line (1), a lower conical sealing mouth (5) is formed in the sealing surface of the lower fixed joint (6), when the upper fixed joint (2) is screwed up, the sealing end surface of the sealing element (4) and the plane of the lower fixed joint (6) are sealed, and the part, corresponding to the lower conical sealing mouth (5), of the sealing element (4) is deformed to tightly press the liquid level sensor signal line (1). After adopting the structure, the sealing joint has the advantages of simple and reasonable structure, reliability in fixation, good sealing performance, few faults of a liquid level sensor and the like.
Description
Technical field
The utility model relates to a kind of SEALING FITTING, and particularly a kind of being used for drawn the outer signaling line SEALING FITTING of container with liquefied gas at low temp liquid level sensor signaling line.
Background technique
The LNG(LNG Liquefied natural gas) owing to colourless, tasteless, nontoxic and non-corrosiveness, burning and exhausting environmentally safe, it is the clean energy resource of generally acknowledging in the world at present, its volume is about with 1/600 of amount gaseous natural gas volume, and the weight of LNG only is about 45% of consubstantiality ponding.Except in industry, city dweller family, being used widely, also as energy source of car instead of gasoline and diesel oil.In order to measure the liquid level of LNG gas cylinder, just need in the LNG gas cylinder, liquid level sensor be installed, and in the LNG gas cylinder, draw the liquid level sensor signaling line.Because the LNG gas cylinder must have excellent sealing performance and Safety performance when the liquid level sensor signaling line is drawn, and the sealing of existing low-temperature liquid gas liquid level sensor signaling line SEALING FITTING is undesirable, cause that easily a jar interior flammable explosive gas slightly reveals, though can not cause security incident, but the micro-cryogenic gas that leaks can be along sensor signal lines entering signal processing unit, cause that the liquid level sensor measurement is inaccurate, even damage.For this reason, many manufacturers and knowledgeable people develop and develop at the problems referred to above, but do not have comparatively ideal product to emerge so far as yet.
Summary of the invention
For overcoming the existing existing above-mentioned defective of LNG gas cylinder liquid level sensor signaling line SEALING FITTING, the purpose of this utility model provides a kind of LNG gas cylinder liquid level sensor signaling line SEALING FITTING of simple and reasonable, fixing reliable, good seal performance.
The utility model solves the problems of the technologies described above the technological scheme that is adopted, it comprises the following permanent joint that is fixed on the LNG gas cylinder, Sealing, last permanent joint, the liquid level sensor signaling line, last permanent joint is fixed on down on the permanent joint by screw-thread fit, Sealing is arranged on down between permanent joint and the last permanent joint, Sealing and last permanent joint are drawn and passed to the liquid level sensor signaling line from following permanent joint, the described sealed end of going up permanent joint is provided with upper conical sealed mouth, Sealing is provided with the tapering of matching with upper conical sealed mouth, when last permanent joint is tightened, the tapering of the upper conical sealed mouth compression seal spare of last permanent joint, the Sealing distortion compresses the liquid level sensor signaling line.
The described sealing surface of permanent joint down is provided with the inferior pyramidal sealed mouth, when last permanent joint is tightened, and the plane sealing of the seal face of Sealing and following permanent joint, the position distortion that Sealing is corresponding with the inferior pyramidal sealed mouth compresses the liquid level sensor signaling line.
Described Sealing is made by polytetrafluoroethylmaterial material.
After adopting said structure, following advantage is arranged compared with prior art: the one, the plane sealing of the seal face of Sealing and following permanent joint makes down between permanent joint and the last permanent joint to seal reliably.The inferior pyramidal sealed mouth of permanent joint was by the two-way liquid level sensor signaling line that compresses of Sealing distortion under the upper conical sealed mouth of permanent joint reached on two, and the assurance flammable explosive gas can't slightly be revealed by heart yearn.Liquid gas is slight to be revealed and because the slight problem of revealing the level sensor fault that causes of liquid gas thereby solved.
Description of drawings
Fig. 1 is the utility model structural representation.
1 liquid level sensor signaling line wherein, permanent joint on 2,3 upper conical sealed mouths, 4 Sealings, 5 inferior pyramidal sealed mouths, 6 times permanent joints.
Embodiment
Shown in Figure 1, specific embodiments for a kind of LNG gas cylinder of the utility model liquid level sensor signaling line SEALING FITTING, it comprises the following permanent joint 6 that is fixed on the LNG gas cylinder, Sealing 4, last permanent joint 2, liquid level sensor signaling line 1, last permanent joint 2 is fixed on down on the permanent joint 6 by screw-thread fit, Sealing 4 is arranged on down between permanent joint 6 and the last permanent joint 2, Sealing 4 and last permanent joint 2 are drawn and passed to liquid level sensor signaling line 1 from following permanent joint 6, the described sealed end of going up permanent joint 2 is provided with upper conical sealed mouth 3, Sealing 4 is provided with the tapering of matching with upper conical sealed mouth 3, when last permanent joint 2 is tightened, the tapering of the upper conical sealed mouth 3 compression seal spares 4 of last permanent joint 2, Sealing 4 distortion compress liquid level sensor signaling line 1.The described sealing surface of permanent joint 6 down is provided with inferior pyramidal sealed mouth 5, when last permanent joint 2 is tightened, the plane sealing of the seal face of Sealing 4 and following permanent joint 6, Sealing 4 and inferior pyramidal sealed mouth 5 corresponding positions are out of shape and compress liquid level sensor signaling line 1.Described Sealing 4 is made by polytetrafluoroethylmaterial material.
The utility model compresses the joint sealing that Sealing 4 is realized between last permanent joint 2 and the following permanent joint 6 by last permanent joint 2, upper conical sealed mouth 3 by last the permanent joint 2 and inferior pyramidal sealed mouth 5 of permanent joint 6 is two-way down compresses Sealing 4 and make it distortion is realized the two way sealed to the liquid level sensor signaling line.Thereby solve the micro-leakage of SEALING FITTING and the problem that causes level sensor fault.SEALING FITTING of the present utility model is except being used for the sealing of LNG gas cylinder sealing fluid level sensor signaling line, can also be applied in the sealing of the liquid level sensor signaling line of other cryogenic high pressure liquified petroleum gas cylinder, as liquid nitrogen, liquid oxygen, liquid carbon monoxide, liquid carbon dioxide, all can be according to the utility model choose reasonable application and applied environment.
The above; just specific embodiment of the utility model is not that the utility model is made any pro forma restriction, is not breaking away from the technical solution of the utility model basis; the simple modification of having done, equivalent variations or modification all fall into protection domain of the present utility model.
Claims (3)
1. LNG gas cylinder liquid level sensor signaling line SEALING FITTING, comprise the following permanent joint (6) that is fixed on the LNG gas cylinder, Sealing (4), last permanent joint (2), liquid level sensor signaling line (1), last permanent joint (2) is fixed on down on the permanent joint (6) by screw-thread fit, Sealing (4) is arranged on down between permanent joint (6) and the last permanent joint (2), Sealing (4) and last permanent joint (2) are drawn and passed to liquid level sensor signaling line (1) from following permanent joint (6), it is characterized in that: the described sealed end of going up permanent joint (2) is provided with upper conical sealed mouth (3), Sealing (4) is provided with the tapering of matching with upper conical sealed mouth (3), last permanent joint (2) is when tightening, the tapering of upper conical sealed mouth (3) the compression seal spare (4) of last permanent joint (2), Sealing (4) distortion compresses liquid level sensor signaling line (1).
2. LNG gas cylinder liquid level sensor signaling line SEALING FITTING according to claim 1, it is characterized in that: the described sealing surface of permanent joint (6) down is provided with inferior pyramidal sealed mouth (5), last permanent joint (2) is when tightening, the plane sealing of the seal face of Sealing (4) and following permanent joint (6), the position distortion that Sealing (4) is corresponding with inferior pyramidal sealed mouth (5) compresses liquid level sensor signaling line (1).
3. LNG gas cylinder liquid level sensor signaling line SEALING FITTING according to claim 2, it is characterized in that: described Sealing (4) is made by polytetrafluoroethylmaterial material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320012259 CN203099328U (en) | 2013-01-10 | 2013-01-10 | Sealing joint of liquid level sensor signal line of LNG (Liquefied Natural Gas) cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320012259 CN203099328U (en) | 2013-01-10 | 2013-01-10 | Sealing joint of liquid level sensor signal line of LNG (Liquefied Natural Gas) cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203099328U true CN203099328U (en) | 2013-07-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320012259 Expired - Lifetime CN203099328U (en) | 2013-01-10 | 2013-01-10 | Sealing joint of liquid level sensor signal line of LNG (Liquefied Natural Gas) cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203099328U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633444A (en) * | 2015-03-03 | 2015-05-20 | 上海雷尼威尔技术有限公司 | Signal line lead-out and sealing component and mounting method thereof |
| CN105655943A (en) * | 2015-12-29 | 2016-06-08 | 楚天科技股份有限公司 | Sealing joint for vacuum equipment, signal line wiring method and freeze drying box |
| CN105782713A (en) * | 2016-04-22 | 2016-07-20 | 广东建成机械设备有限公司 | Signal line isolation device for interlayer container and temperature measuring system |
| CN113383188A (en) * | 2019-02-06 | 2021-09-10 | 卡特彼勒公司 | Liquid level calibration control system for liquefied gas fuel storage tank |
-
2013
- 2013-01-10 CN CN 201320012259 patent/CN203099328U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104633444A (en) * | 2015-03-03 | 2015-05-20 | 上海雷尼威尔技术有限公司 | Signal line lead-out and sealing component and mounting method thereof |
| CN105655943A (en) * | 2015-12-29 | 2016-06-08 | 楚天科技股份有限公司 | Sealing joint for vacuum equipment, signal line wiring method and freeze drying box |
| CN105782713A (en) * | 2016-04-22 | 2016-07-20 | 广东建成机械设备有限公司 | Signal line isolation device for interlayer container and temperature measuring system |
| CN105782713B (en) * | 2016-04-22 | 2018-05-29 | 广东建成机械设备有限公司 | A kind of signal wire isolating device and temperature measurement system for jacketed vessel |
| CN113383188A (en) * | 2019-02-06 | 2021-09-10 | 卡特彼勒公司 | Liquid level calibration control system for liquefied gas fuel storage tank |
| CN113383188B (en) * | 2019-02-06 | 2024-01-09 | 卡特彼勒公司 | Liquid level calibration control system for liquefied gas fuel storage tank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |