CN205350847U - L -CNG double pump sled - Google Patents
L -CNG double pump sled Download PDFInfo
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- CN205350847U CN205350847U CN201520814521.0U CN201520814521U CN205350847U CN 205350847 U CN205350847 U CN 205350847U CN 201520814521 U CN201520814521 U CN 201520814521U CN 205350847 U CN205350847 U CN 205350847U
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- sled
- pump
- plunger pump
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- pressure plunger
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Abstract
The utility model relates to a natural gas gas filling equipment technical field discloses a L -CNG double pump sled, include: prize the frame and be located a high pressure plunger pump and the 2nd high pressure plunger pump in the sled frame, to each high pressure plunger pump, connect respectively that its inlet, return -air mouth, high -pressure liquid outlet, low pressure diffuse mouthful and pipeline that the high pressure diffused mouthful in, it has pneumatic quick action emergency valve and hand stop valve to establish ties on at least one pipeline. The utility model discloses a reliable more, safety during the L -CNG double pump sled operation, the operation of the personnel of reduction simultaneously, improve equipment operating efficiency.
Description
Technical field
This utility model relates to natural gas equipment technical field, particularly relates to a kind of L-CNG double pump sled.
Background technology
CNG Filling Station (i.e. L-CNG gas station) is with liquefied natural gas (liquefiednaturalgas, LNG) for source of the gas, gasify to compressed natural gas (CompressedNaturalGas after high-pressure plunger pump pressurizes, CNG) refueling, it is possible to simultaneously with low pressure liquid pump to LNG refueling.The core running device of L-CNG double pump Qiao Shi L-CNG gas station, the operation principle of L-CNG gas station is that by supercharging gasifier in standing, LNG is made CNG, thus corresponding CNG automobile is carried out aerating.But existing double pump sled in fueling process can only Non-follow control, if in case of emergency control be easily caused unexpected generation, poor stability not in time.
Utility model content
The utility model proposes a kind of L-CNG double pump sled, solve the problem that cannot in case of emergency carry out automatically controlling in prior art.
L-CNG double pump of the present utility model is prized, including: prize framework and be positioned at the first high-pressure plunger pump and second high-pressure plunger pump of described sled framework；For each high-pressure plunger pump, connect respectively in the pipeline of its inlet, gas returning port, high pressure liquid outlet, low pressure diffusion mouth and high pressure diffusion mouth, at least one pipeline is in series with pneumatic emergency stop valve and hand stop valve.
Wherein, the pump high-pressure manometer assembly being equipped with on the pipeline of described first high-pressure plunger pump and the respective high pressure liquid outlet of the second high-pressure plunger pump is connected.
Wherein, described first high-pressure plunger pump and the respective inlet of the second high-pressure plunger pump are provided with Pressure gauge assembly.
Wherein, connect and the pipeline of described first high-pressure plunger pump and the respective gas returning port of the second high-pressure plunger pump is equipped with temperature transmitter.
Wherein, the combustible gas probe being arranged in sled framework is also included.
Wherein, the explosion-proof lamp being arranged in sled framework is also included.
Wherein, also include the instrument bellows being arranged in sled framework, be integrated with the air inlet of the steam line of described pneumatic emergency stop valve in described instrument bellows and control the electromagnetic valve of described pneumatic emergency stop valve.
It is mounted with many high-precision sensors on L-CNG double pump is prized, all devices in sledge is carried out monitor in real time, the problem being likely to occur is judged in advance and solves in time, on pipeline, valve adopts pneumatic emergency stop valve and hand stop valve series design mode, relatively reliable, safety when guarantee equipment runs, reduce the personnel to operate simultaneously, improve equipment operating efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described 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 premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the side view of a kind of L-CNG double pump sled of this utility model embodiment；
Fig. 2 is the top view of L-CNG double pump sled in Fig. 1；
Fig. 3 is the left view of L-CNG double pump sled in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
As shown in Figures 1 to 3, the L-CNG double pump sled of the present embodiment, including: prize framework 1 and be positioned at the first high-pressure plunger pump 51 and the second high-pressure plunger pump 52 of sled framework 1.For each high-pressure plunger pump, connect respectively in the pipeline of its inlet a, gas returning port b, high pressure liquid outlet d, low pressure diffusion mouth c and high pressure diffusion mouth e, at least one pipeline is in series with pneumatic emergency stop valve and hand stop valve.Pneumatic emergency stop valve has automatic emergency and cuts off the effect of pipeline, in case of emergency automatically cuts off pipeline, it is prevented that unexpected generation, then the hand stop valve on this pipeline of manual-lock, is strictly on guard against that accident occurs.
The pipeline being connected respectively with the first high-pressure plunger pump 51 and the respective inlet a of the second high-pressure plunger pump 52 is provided with the first pneumatic emergency stop valve 61 and the second pneumatic emergency stop valve 62.
The pipeline being connected respectively with the first high-pressure plunger pump 51 and the respective gas returning port b of the second high-pressure plunger pump 52 is provided with the 3rd pneumatic emergency stop valve 63 and the 4th pneumatic emergency stop valve 64.
It is provided with the 5th pneumatic emergency stop valve 65 and the first hand-operated valve 71 with on the high pressure liquid outlet d of the first high-pressure plunger pump 51 pipeline being connected；It is provided with the 6th pneumatic emergency stop valve 66 and the second hand-operated valve 72 with on the high pressure liquid outlet d of the second high-pressure plunger pump 52 pipeline being connected.
It is provided with the 7th pneumatic emergency stop valve 67 and the 3rd hand-operated valve 73 with on the low pressure diffusion mouth c of the first high-pressure plunger pump 51 pipeline being connected；It is provided with the 8th pneumatic emergency stop valve 68 and the 4th hand-operated valve 74 with on the low pressure diffusion mouth c of the second high-pressure plunger pump 52 pipeline being connected.
It is provided with the 5th hand-operated valve 75 and the 6th hand-operated valve 76 with on the high pressure diffusion mouth e of the first high-pressure plunger pump 51 pipeline being connected；It is provided with the 7th hand-operated valve 77 and the 8th hand-operated valve 78 with on the high pressure diffusion mouth e of the second high-pressure plunger pump 52 pipeline being connected.
Connect the pump high-pressure manometer assembly being equipped with on the pipeline of described first high-pressure plunger pump 51 and the respective high pressure liquid outlet d of the second high-pressure plunger pump 52: the first pump high-pressure manometer assembly 41 and the second pump high-pressure manometer assembly 42, for measuring the pressure of the high pressure liquid outlet d of two plunger displacement pumps respectively.
First high-pressure plunger pump 51 and the respective inlet a of the second high-pressure plunger pump 52 are provided with Pressure gauge assembly 10, owing to the respective inlet a of two high-pressure plunger pumps is connected to same mouth eventually through different pipelines, therefore only one of which Pressure gauge assembly 10, for detecting the inlet pressure of two plunger displacement pumps.
Connect and the pipeline of the first high-pressure plunger pump 51 and the respective gas returning port b of the second high-pressure plunger pump 52 is equipped with temperature transmitter: the first temperature transmitter 81 and the second temperature transmitter 82, for detecting the suction temperature of two plunger displacement pumps respectively.
This L-CNG double pump sled also includes the combustible gas probe 2 being arranged in sled framework 1, if detecting when combustible gas leakage arrives a certain amount of and alarm.
This L-CNG double pump sled also includes the explosion-proof lamp 3 being arranged in sled framework 1.
This L-CNG double pump sled also includes the instrument bellows 35 being arranged in sled framework 1.It is integrated with the air inlet of the steam line of described pneumatic emergency stop valve in instrument bellows 35 and controls the electromagnetic valve of described pneumatic emergency stop valve.
This L-CNG double pump sled also includes the on-the-spot explosion-proof transfer box 20 of LNG being arranged in sled framework 1.Slave station plate is had, inside the holding wire of all of pneumatic emergency stop valve and sensor on sled (such as above-mentioned combustible gas probe 2) finally can be connected to inside the on-the-spot explosion-proof transfer box 20 of LNG.
Wherein, also including the explosive operation post 21 being arranged in sled framework 1, explosive operation post 21 is the operation post of jerk and manual start and stop plunger displacement pump in being integrated with the upper illuminating lamp of sled and prizing.
LNG flows into L-CNG double pump sledge by storage tank, gasified sending into gasifier after LNG supercharging by the high-pressure plunger pump in prizing, it is stored in the CNG gas bomb group of different high pressure by the sequential control dish connected, when needs are to additional gas, carry out measuring aerating to corresponding CNG automobile by filling machine.L-CNG double pump sledge makes LNG stream enter the outflow with CNG by programme-control pneumatic operated valve.When carrying out supercharging, by the sensor values on prizing, program can judge whether pressurized constraint meets.L-CNG double pump sledge opens control program in pump pressurization and is monitored constantly and action, is provided with multiple pneumatic emergency stop valve simultaneously, in case of emergency prevents unexpected generation on L-CNG double pump sledge.The outlet conduit of each sled is also equipped with the check valve of the corresponding flow direction, it is to avoid backflow, it is ensured that each flow process safe operation on L-CNG double pump sledge.L-CNG double pump sledge meets the hands of valve simultaneously and opens and closes automatically, and such hands automatically switches and also ensure that the high-efficiency operation that pump is prized.
The foregoing is only preferred embodiment of the present utility model; not in order to limit this utility model; all within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
Claims (7)
1. a L-CNG double pump sled, it is characterised in that including: prize framework and be positioned at the first high-pressure plunger pump and second high-pressure plunger pump of described sled framework；For each high-pressure plunger pump, connect respectively in the pipeline of its inlet, gas returning port, high pressure liquid outlet, low pressure diffusion mouth and high pressure diffusion mouth, at least one pipeline is in series with pneumatic emergency stop valve and hand stop valve.
2. L-CNG double pump sled as claimed in claim 1, it is characterised in that connect the pump high-pressure manometer assembly being equipped with on the pipeline of described first high-pressure plunger pump and the respective high pressure liquid outlet of the second high-pressure plunger pump.
3. L-CNG double pump sled as claimed in claim 1, it is characterised in that described first high-pressure plunger pump and the respective inlet of the second high-pressure plunger pump are provided with Pressure gauge assembly.
4. L-CNG double pump sled as claimed in claim 1, it is characterised in that connect and be equipped with temperature transmitter on the pipeline of described first high-pressure plunger pump and the respective gas returning port of the second high-pressure plunger pump.
5. L-CNG double pump sled as claimed in claim 1, it is characterised in that also include the combustible gas probe being arranged in sled framework.
6. L-CNG double pump sled as claimed in claim 1, it is characterised in that also include the explosion-proof lamp being arranged in sled framework.
7. the L-CNG double pump sled as according to any one of claim 1～6, it is characterized in that, also include the instrument bellows being arranged in sled framework, be integrated with the air inlet of the steam line of described pneumatic emergency stop valve in described instrument bellows and control the electromagnetic valve of described pneumatic emergency stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520814521.0U CN205350847U (en) | 2015-10-20 | 2015-10-20 | L -CNG double pump sled |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520814521.0U CN205350847U (en) | 2015-10-20 | 2015-10-20 | L -CNG double pump sled |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205350847U true CN205350847U (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520814521.0U Active CN205350847U (en) | 2015-10-20 | 2015-10-20 | L -CNG double pump sled |
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| Country | Link |
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| CN (1) | CN205350847U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561750A (en) * | 2018-06-26 | 2018-09-21 | 杰瑞(天津)石油工程技术有限公司 | A kind of L-CNG loading systems |
| CN109027662A (en) * | 2018-07-12 | 2018-12-18 | 杰瑞石油天然气工程有限公司 | A kind of LNG/L-CNG Qiao Zhuan gas station |
-
2015
- 2015-10-20 CN CN201520814521.0U patent/CN205350847U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561750A (en) * | 2018-06-26 | 2018-09-21 | 杰瑞(天津)石油工程技术有限公司 | A kind of L-CNG loading systems |
| CN109027662A (en) * | 2018-07-12 | 2018-12-18 | 杰瑞石油天然气工程有限公司 | A kind of LNG/L-CNG Qiao Zhuan gas station |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |