CN105318182A - Independently-arranged fast filling system for liquefied natural gas (LNG) storage tank - Google Patents
Independently-arranged fast filling system for liquefied natural gas (LNG) storage tank Download PDFInfo
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- CN105318182A CN105318182A CN201410378783.7A CN201410378783A CN105318182A CN 105318182 A CN105318182 A CN 105318182A CN 201410378783 A CN201410378783 A CN 201410378783A CN 105318182 A CN105318182 A CN 105318182A
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- storage tank
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Abstract
The invention relates to an independently-arranged fast filling system for a liquefied natural gas (LNG) storage tank. The independently-arranged fast filling system comprises the LNG storage tank, an LNG storage tank pressure adjusting output pipeline, an LNG tank car pressure adjusting output pipeline and a common filling pipeline, wherein the LNG storage tank pressure adjusting output pipeline is connected with the LNG storage tank, the LNG storage tank pressure adjusting output pipeline and the LNG tank car pressure adjusting output pipeline are connected in parallel, and the common filling pipeline is arranged at the front end of the LNG tank car pressure adjusting output pipeline. The LNG storage tank and a fast filling pipeline are connected in parallel. A fast filling port valve is arranged at an inlet of the fast filling pipeline. A converting valve is arranged between a pipeline at the rear end of the fast filling port valve and the common filling pipeline. When the storage tank needs to be filled with liquid, two tank cars work at the same time, one of the tank cars supplies gas to a user normally, determines that the converting valve between the fast filling pipeline and the common filling pipeline is closed and directly opens the fast filling port valve, and the other tank car directly adds LNG into the storage tank so that the storage tank can be used as a standby gas source. In this way, gas can be supplied to the storage tank, and normal gas supply to the user is not affected.
Description
Technical field
The present invention relates to a kind of LNG storage tank charging system, particularly relate to a kind of LNG storage tank and set up separately quick charging system.
Background technique
In fuel gas supply system, due to reasons such as gas price rise and mining conditions, a lot of gas user generally abandons at present and uses liquefied petroleum gas (LPG) (LPG), then uses natural gas supply.Due to the restriction of the conditions such as transport, a lot of user can not use pipe natural gas air feed, then uses tank car air feed.Present natural gas tank car is LNG tank car and CNG tank car more commonly.Due to reasons such as dielectric properties.Although LNG and CNG belongs to rock gas, corresponding Gas Pressure Regulating Equipment can not be general.Therefore, if when there is the phenomenon of wherein certain natural air-air source air feed anxiety, be easy to cause stopping production, for user causes economic loss.Wherein general LNG system comprises LNG storage tank, the LNG storage tank pressure regulation output pipeline be connected with LNG storage tank, the LNG tank car pressure regulation output pipeline be arranged in parallel with LNG storage tank pressure regulation output pipeline and be located at the conventional of LNG tank car pressure regulation output pipeline front end and fill pipeline, wherein commonly using and filling pipeline is three, is connected carries out unloading liquid with tank car.Because storage tank is bailout gas, after use, need to supplement in time, in case of need.Use during tank car air feed and conventional fills pipeline, conventionally fill pipeline if use and supplement for storage tank, the normal air feed of user can be affected.
Summary of the invention
Technical problem to be solved by this invention overcomes the deficiencies in the prior art, provides a kind of and not only can to have supplemented for storage tank but also the LNG storage tank of the normal air feed not affecting user sets up separately quick charging system.
The present invention is achieved by the following technical programs:
A kind of LNG storage tank sets up separately quick charging system, comprise LNG storage tank, the LNG storage tank pressure regulation output pipeline be connected with LNG storage tank, the LNG tank car pressure regulation output pipeline be arranged in parallel with LNG storage tank pressure regulation output pipeline and be located at the conventional of LNG tank car pressure regulation output pipeline front end and fill pipeline, described LNG storage tank is connected in parallel and fills pipeline fast, describedly fill conduit entrance fast and be provided with and fill a mouthful valve fast, describedly fill mouthful valve rear end pipeline fast and conventional filling between pipeline is provided with conversion valve.
The invention has the beneficial effects as follows:
When storage tank needs topping up, two tank cars work simultaneously, wherein tank car is the normal air feed of user, confirm to fill pipeline fast and commonly use the conversion valve filled between pipeline to close, directly open and fill a mouthful valve fast, LNG liquid directly adds as bailout gas in storage tank by another tank car, so not only can supplement but also not affect the normal air feed of user for storage tank.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present invention.
In figure: 1. commonly use and fill pipeline, 2. fill pipeline fast, 3.LNG storage tank, 4. conversion valve, 5. fill a mouthful valve fast.
Embodiment
In order to make those skilled in the art understand technological scheme of the present invention better, below in conjunction with accompanying drawing and most preferred embodiment, the present invention is described in further detail.
As shown in Figure 1, the present invention includes LNG storage tank 3, the LNG storage tank pressure regulation output pipeline be connected with LNG storage tank, the LNG tank car pressure regulation output pipeline be arranged in parallel with LNG storage tank pressure regulation output pipeline and be located at the conventional of LNG tank car pressure regulation output pipeline front end and fill pipeline 1, described LNG storage tank is connected in parallel and fills pipeline 2 fast, describedly fill conduit entrance fast and be provided with and fill mouthful valve 5 fast, describedly fill mouthful valve rear end pipeline fast and conventional filling between pipeline is provided with conversion valve 4.
When storage tank needs topping up, two tank cars work simultaneously, wherein tank car A is the normal air feed of user, confirm to fill pipeline fast and commonly use the conversion valve filled between pipeline to close, directly open and fill a mouthful valve fast, LNG liquid directly adds as bailout gas in storage tank by another tank car B, so not only can supplement but also not affect the normal air feed of user for storage tank.Open conversion valve in this example, tank car B also can be made to connect LNG tank car pressure regulation output pipeline, be user's air feed, safeguard and change conveniently.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (1)
1. a LNG storage tank sets up separately quick charging system, it is characterized in that, comprise LNG storage tank, the LNG storage tank pressure regulation output pipeline be connected with LNG storage tank, the LNG tank car pressure regulation output pipeline be arranged in parallel with LNG storage tank pressure regulation output pipeline and be located at the conventional of LNG tank car pressure regulation output pipeline front end and fill pipeline, described LNG storage tank is connected in parallel and fills pipeline fast, describedly fill conduit entrance fast and be provided with and fill a mouthful valve fast, describedly fill mouthful valve rear end pipeline fast and conventional filling between pipeline is provided with conversion valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410378783.7A CN105318182A (en) | 2014-07-31 | 2014-07-31 | Independently-arranged fast filling system for liquefied natural gas (LNG) storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410378783.7A CN105318182A (en) | 2014-07-31 | 2014-07-31 | Independently-arranged fast filling system for liquefied natural gas (LNG) storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105318182A true CN105318182A (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410378783.7A Pending CN105318182A (en) | 2014-07-31 | 2014-07-31 | Independently-arranged fast filling system for liquefied natural gas (LNG) storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105318182A (en) |
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2014
- 2014-07-31 CN CN201410378783.7A patent/CN105318182A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160210 |
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| WD01 | Invention patent application deemed withdrawn after publication |