CN205806934U - Intrinsic safety type LNG skid-mounted device - Google Patents
Intrinsic safety type LNG skid-mounted device Download PDFInfo
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- CN205806934U CN205806934U CN201620696387.3U CN201620696387U CN205806934U CN 205806934 U CN205806934 U CN 205806934U CN 201620696387 U CN201620696387 U CN 201620696387U CN 205806934 U CN205806934 U CN 205806934U
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- ice chest
- mounted device
- intrinsic safety
- safety type
- nitrogen
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Abstract
The utility model discloses a kind of intrinsic safety type LNG skid-mounted device, it includes ice chest and nitrogen cylinder group, is provided with some pipelines in described ice chest, extends to stretch out ice chest after its top is collected from the bottom of ice chest；The top layout of described ice chest has the pipeline of some row's top drillings；Described pipeline stretches out after collecting and is connected with nitrogen cylinder group outside ice chest, and described nitrogen cylinder group is made up of some nitrogen cylinders.Intrinsic safety type LNG skid-mounted device of the present utility model, its simple in construction, the combustion gas leaked in can discharging LNG storage tank ice chest in time, effectively avoid the probability that storage tank sets off an explosion because of the natural gas of ice chest internal leakage, eliminate potential safety hazard, also ensure that the safety that maintainer exists when operation.
Description
Technical field
This utility model relates to technical field of LNG, particularly a kind of intrinsic safety type LND skid-mounted device.
Background technology
At present, specify according to related specifications, as having liquid phase pipeline to import and export below LNG storage tank high level, then should be by
All high level are arranged in the ice chest in welding and storage tank with lower pipeline import and export, deep cooling valve member, LNG heat exchanger etc..
This ice chest constitutes an airtight place, need to increase the positive mechanical formula ventilation of 30 times per hour.
When there is gas leakage in ice chest, gas detector detects gas leakage, then send signal, the institute in this ice chest
Quick action emergency valve is had to close immediately, then the combustion in leakage rate only has the pipeline between two quick action emergency valves residing for this leakage point
Gas content.Because ice chest constitutes an airtight place, although add positive mechanical formula and ventilate, but cannot guarantee that the sky of leakage
Gas concentration is always held at LEL less than 5%, so there is potential safety hazard, as entered ice chest maintenance of equipment, just ensures
The not personal safety of maintainer.
Utility model content
Utility model purpose of the present utility model is: for the problem of above-mentioned existence, it is provided that a kind of intrinsic safety type LNG sledge dress
Equipment, its simple in construction, the combustion gas leaked in LNG storage tank ice chest can be discharged in time, effectively avoid storage tank because of in ice chest
The probability that the natural gas of leakage sets off an explosion, eliminates potential safety hazard, also ensure that the peace that maintainer exists when operation
Quan Xing.
The technical solution adopted in the utility model is as follows:
Intrinsic safety type LNG skid-mounted device, including ice chest and nitrogen cylinder group, is provided with some pipelines, from ice chest in described ice chest
Bottom extends to stretch out outside ice chest after its top is collected；The top layout of described ice chest has the pipeline of some row's top drillings；Institute
Stating to stretch out after pipeline collects and be connected with nitrogen cylinder group outside ice chest, described nitrogen cylinder group is made up of some nitrogen cylinders.
Owing to using said structure, whole skid-mounted device simple in construction, easy for installation, utilize the density of nitrogen than air,
Oxygen and natural gas density are big, can effectively by the natural gas of LNG storage tank ice chest internal leakage and other other eliminating, eliminate because of
The potential safety hazard that storage tank ice chest gas leakage sets off an explosion；When overhauling in maintainer enters ice chest, also ensure that work
Make the personal safety of personnel.
Intrinsic safety type LNG skid-mounted device, the pipeline arranged in described ice chest is straight tube or swan-neck, and described pipeline is arranged on cold
On the medial wall of case, extend to top from the bottom of ice chest and stretch out the ice chest foreign exchange General Logistics Department and be connected with a spark arrester.
Owing to using said structure design, when gas detector has detected gas leakage, send signal, cold box interior
All quick action emergency valves cut out immediately, and the quick action emergency valve being connected to nitrogen spelling group is opened, and in nitrogen cylinder, nitrogen passes through ice chest top
The aperture ejection of portion's pipeline, because the fuel gas temperature of ice chest internal leakage is relatively low, density is relatively big, and the nitrogen temperature come in nitrogen cylinder is relatively
Height, density is less.Therefore, the less nitrogen of density is from the beginning of the top of ice chest, by air bigger for density and cryogenic natural gas
Extruding from the pipeline of ice chest bottom opening, gradually replaced by the natural gas of air and leakage, cold box interior is the most only left
Nitrogen.It is externally connected with a spark arrester at ice chest, when explosion time occurs, heat absorption dispersion heat, make temperature fall heat absorption dispersion heat,
Make temperature reduce, fray-out of flame thus play back-fire relief effect, serve the effect of double insurance.
Intrinsic safety type LNG skid-mounted device, described pipeline stretches out its top of the part outside ice chest without perforate, and with pneumatic cut-off
Valve, check valve, stop valve, Pressure gauge, air relief valve and the series connection of nitrogen cylinder group.
Owing to have employed said structure, when having gas leakage in coal gas detection probe detects ice chest, nitrogen cylinder group can
The timely unlatching of fast and stable, it is ensured that drain the natural gas of ice chest internal leakage, prevent blast, improve the safety of LNG storage tank.
Intrinsic safety type LNG skid-mounted device, described Pressure gauge leading portion is provided with needle valve.
Due to needle valve have easy installation and removal, connect fastening, be conducive to fire prevention, explosion-proof and voltage endurance capability is high, seal
The advantage such as functional, needle valve is a kind of valve that can accurately adjust, it is ensured that manometric measurement accuracy.
Intrinsic safety type LNG skid-mounted device, described nitrogen cylinder group includes five nitrogen cylinders, and all nitrogen cylinders are arranged in parallel, and often
Individual nitrogen cylinder front end is all in series with needle valve.
Owing to have employed said structure, it is ensured that whole intrinsic safety type LNG skid-mounted device applying Namount operationally and for nitrogen
Speed, thus improve the work efficiency of whole device, the potential safety hazard that quick let-down vessel system exists.
Intrinsic safety type LNG skid-mounted device, is provided with detection probe and the quick action emergency valve of gas detector in described ice chest.
Employing said structure designs, and when there is gas leakage in ice chest, gas detectors can the detecting of fast accurate
Gas leakage, thus system can cut off ice chest timely in all of quick action emergency valve, it is to avoid combustion gas continues leakage, simultaneously
Opening the quick action emergency valve connecting nitrogen cylinder group the most timely, nitrogen enters in ice chest with pipeline, by air bigger for density
Extruding from the pipeline of ice chest bottom opening with cryogenic natural gas, replaced by the natural gas of air and leakage, cold box interior is
The most remaining nitrogen eventually.After gas detector does not has combustion gas in ice chest being detected, ice chest is led to by the gas-tight door opening ice chest
After wind processes, equipment is safeguarded by ice chest of being allowed for access.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
1, can effectively discharge the natural gas of leakage, make the natural gas concentration of leakage be maintained at below safe concentration, get rid of
There is the potential safety hazard of blast.
2, simple in construction, installation and maintenance are convenient, and use cost is low, are suitable for popularization and application.
Accompanying drawing explanation
Fig. 1 is intrinsic safety type LNG skid-mounted device structural representation sketch；
Labelling in Fig. 1: 1-ice chest, 2-pipeline, 3-pipeline, 4-pneumatic stopping valve, 5-check valve, 6-stop valve, 7-pressure
Table, 8-air relief valve, 9-needle valve, 10-nitrogen cylinder, 11-detection probe, 12-spark arrester.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described in detail.
In order to make the purpose of utility model, technical scheme and advantage clearer, below in conjunction with embodiment, to this reality
It is further elaborated with novel.Should be appreciated that specific embodiment described herein is only in order to explain that this practicality is new
Type, is not used to limit this utility model.
Embodiment 1
A kind of intrinsic safety type LNG skid-mounted device, it includes ice chest 1 and nitrogen cylinder group, is provided with some pipelines, institute in described ice chest
Stating pipeline is straight tube or swan-neck, and the setting direction of described pipeline and its position in ice chest can be according to the actually used feelings of equipment
Depending on condition, use vertical pipeline in intrinsic safety type LNG skid-mounted device ice chest 1 of the present utility model, be arranged on the inner side of ice chest 1
On wall, described pipeline extends to from the bottom of ice chest 1 stretch out ice chest 1 after its top is collected, and is connected with spark arrester 12, described resistance
The installation quantity of firearm can be multiple, and this utility model is mounted with a spark arrester, as shown in Figure 1.
As it is shown in figure 1, intrinsic safety type LNG skid-mounted device of the present utility model, the top layout of its ice chest 1 has some row tops
The pipeline of perforate, the perforate direction of these pipelines can arbitrarily set, and described pipeline stretches out outside ice chest after collecting, and pipeline 3 stretches out cold
Its top of part outside case without perforate, and with pneumatic stopping valve 4, check valve 5, stop valve 6, Pressure gauge 7, air relief valve 8 and nitrogen
Bottle group series connection, depending on the type of each valve and quantity are according to actually used situation, can be dissimilar but can arrive equally
Other valvings of using effect；Described Pressure gauge 7 leading portion is provided with needle valve 9, it is ensured that the accuracy of detection of Pressure gauge 7.
As it is shown in figure 1, intrinsic safety type LNG skid-mounted device of the present utility model, described nitrogen cylinder group is by some nitrogen cylinders 10 groups
Becoming, the quantity of set nitrogen cylinder sets according to actual nitrogen cylinder content and actually used demand, and the size of nitrogen cylinder contains
Amount difference, set nitrogen cylinder quantity is the most different, so the quantity of nitrogen cylinder can be one or more, this utility model
The nitrogen cylinder group set by intrinsic safety type LNG skid-mounted device include five nitrogen cylinders 10, all nitrogen cylinders are arranged in parallel, and each
Nitrogen cylinder front end is all in series with needle valve, protects the safety of nitrogen cylinder.
As it is shown in figure 1, intrinsic safety type LNG skid-mounted device of the present utility model, in its ice chest 1, it is additionally provided with the inspection of gas detector
Probing 11 and quick action emergency valve, when having gas leakage in gas detectors detects ice chest 1 by detection probe 11, each
Quick action emergency valve can cut off source of leaks timely and quickly discharge the combustion gas of ice chest 1 internal leakage.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model
Protection domain within.
Claims (6)
1. an intrinsic safety type LNG skid-mounted device, it is characterised in that: it includes ice chest (1) and nitrogen cylinder group, is provided with in described ice chest
Some pipelines (2), described pipeline extends to from the bottom of ice chest (1) stretch out ice chest (1) after its top is collected；Described ice chest
(1) top layout has some row pipelines, the top of described pipeline to have hole；Described pipeline (3) stretch out after collecting ice chest outer with
Nitrogen cylinder group connects, and described nitrogen cylinder group is made up of some nitrogen cylinders (10).
Intrinsic safety type LNG skid-mounted device the most according to claim 1, it is characterised in that: described pipeline (2) is straight tube or bending
Pipe, described pipeline (2) is arranged on the medial wall of ice chest, stretches out ice chest (1) and be connected with spark arrester (12) outward after collecting.
Intrinsic safety type LNG skid-mounted device the most according to claim 1, it is characterised in that: described pipeline (3) stretches out outside ice chest
Partly its top is without perforate, and with pneumatic stopping valve (4), check valve (5), stop valve (6), Pressure gauge (7), air relief valve (8) and
Nitrogen cylinder group is connected.
Intrinsic safety type LNG skid-mounted device the most according to claim 3, it is characterised in that: described Pressure gauge (7) leading portion is provided with pin
Type valve (9).
Intrinsic safety type LNG skid-mounted device the most according to claim 3, it is characterised in that: described nitrogen cylinder group includes five nitrogen
Gas cylinder (10), all nitrogen cylinders are arranged in parallel, and each nitrogen cylinder front end is all in series with needle valve.
6. according to the intrinsic safety type LNG skid-mounted device one of claim 1-5 Suo Shu, it is characterised in that: described ice chest is provided with in (1)
The detection probe (11) of gas detector and quick action emergency valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620696387.3U CN205806934U (en) | 2016-07-05 | 2016-07-05 | Intrinsic safety type LNG skid-mounted device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620696387.3U CN205806934U (en) | 2016-07-05 | 2016-07-05 | Intrinsic safety type LNG skid-mounted device |
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| Publication Number | Publication Date |
|---|---|
| CN205806934U true CN205806934U (en) | 2016-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620696387.3U Active CN205806934U (en) | 2016-07-05 | 2016-07-05 | Intrinsic safety type LNG skid-mounted device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972431A (en) * | 2016-07-05 | 2016-09-28 | 成都华气厚普机电设备股份有限公司 | Intrinsic safety type LNG skid-mounted equipment |
-
2016
- 2016-07-05 CN CN201620696387.3U patent/CN205806934U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972431A (en) * | 2016-07-05 | 2016-09-28 | 成都华气厚普机电设备股份有限公司 | Intrinsic safety type LNG skid-mounted equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 610041 No.3, floor 11, building 6, no.599, shijicheng South Road, Chengdu high tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu City, Sichuan Province Patentee after: Houpu clean energy Co.,Ltd. Address before: 610041, No. 11, No. 6, No. 599, No. 3 South City Road, Chengdu hi tech Development Zone, Sichuan Patentee before: CHENGDU HUAQI HOUPU HOLDING Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.3, 11th floor, building 6, no.599, shijicheng South Road, Chengdu hi tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan 610041 Patentee after: Houpu clean energy (Group) Co.,Ltd. Address before: No.3, 11th floor, building 6, no.599, shijicheng South Road, Chengdu hi tech Zone, China (Sichuan) pilot Free Trade Zone, Chengdu, Sichuan 610041 Patentee before: Houpu clean energy Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |