CN204512941U - Gas-liquid separation device and there is the L-CNG refueling system of this device - Google Patents
Gas-liquid separation device and there is the L-CNG refueling system of this device Download PDFInfo
- Publication number
- CN204512941U CN204512941U CN201420859116.6U CN201420859116U CN204512941U CN 204512941 U CN204512941 U CN 204512941U CN 201420859116 U CN201420859116 U CN 201420859116U CN 204512941 U CN204512941 U CN 204512941U
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- Prior art keywords
- knock out
- out drum
- communicated
- gas
- separation device
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- Expired - Fee Related
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- 239000007788 liquid Substances 0.000 title claims abstract description 86
- 238000000926 separation method Methods 0.000 title claims abstract description 41
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 238000009792 diffusion process Methods 0.000 claims description 3
- 239000012071 phase Substances 0.000 abstract description 18
- 230000003628 erosive effect Effects 0.000 abstract description 5
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 239000007791 liquid phase Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 22
- 239000003949 liquefied natural gas Substances 0.000 description 18
- 238000005516 engineering process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 238000002309 gasification Methods 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model proposes a kind of gas-liquid separation device, comprise knock out drum, liquid inlet pipe, at least one drain pipe and muffler; Knock out drum is in sealing tubular; Liquid inlet pipe is located at knock out drum sidewall and is communicated in knock out drum inside; At least one drain pipe is located at knock out drum sidewall and is communicated in knock out drum inside, and drain pipe height is lower than liquid inlet pipe; Muffler is located at knock out drum sidewall and is communicated in knock out drum inside, and muffler height is higher than liquid inlet pipe.The gas-liquid separation device that the utility model proposes is when being applied in L-CNG refueling system, LNG enters in buffering tank body by storage tank, in buffering tank body, LNG gas phase is separated completely with liquid phase, therefore the medium flowing into high-pressure plunger pump is entirely LNG single phase flow, avoids the problem of cavitation erosion and instability of flow.
Description
Technical field
The utility model relates to liquid gas warehousing and transportation facilities technical field, particularly relates to a kind of gas-liquid separation device and has the L-CNG refueling system of this device.
Background technique
Along with LNG Liquefied natural gas (liquefied natural gas, be called for short LNG) extensive use of technology and develop rapidly, LNG gas station and L-CNG (compressed natural gas, Compressed Natural Gas, be called for short CNG) gas station technology and application also at high speed development, and market demand is increasing, LNG gas station, L-CNG gas station is the outstanding feature product of LNG application.In L-CNG gas station, high-pressure plunger pump is the essential core parts and the power source that low pressure LNG are added to high pressure.LNG in low-temperature storage tank pressurizes through high-pressure plunger pump, and is adjusted by the temperature of the links such as air vaporizers gasification, becomes the high pressure CNG with ambient temperature, is take CNG as the refueling of fuel eventually through filling machine.In the fueling process of above-mentioned LNG, can gas-liquid two-phase be there is and flow through plunger pump, thus cause feed flow unstable, the problems such as plunger pump cavitation erosion.
Therefore, propose a kind of gas-liquid separation device, the rock gas of gas phase can be avoided to enter high-pressure plunger pump, to solve feed flow instability and cavitation erosion problem, become a large technical problem urgently to be resolved hurrily in related domain.
Model utility content
The utility model will solve the high-pressure plunger pump feed flow shakiness of L-CNG gas station in prior art and the technical problem of easily generation cavitation erosion.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
The utility model proposes a kind of gas-liquid separation device, wherein, comprise knock out drum, liquid inlet pipe, at least one drain pipe and muffler; Described knock out drum is in sealing tubular; Described liquid inlet pipe is located at described knock out drum sidewall and is communicated in described knock out drum inside; Described at least one drain pipe is located at described knock out drum sidewall and is communicated in described knock out drum inside, and described drain pipe height is lower than described liquid inlet pipe; Described muffler is located at described knock out drum sidewall and is communicated in described knock out drum inside, and described muffler height is higher than described liquid inlet pipe.
According to a mode of execution of the present utility model, described knock out drum upper end has an opening, and described knock out drum also comprises a seal structure, and in order to close described opening, described seal structure is provided with safe diffusion device.
According to another mode of execution, described drain pipe is many, and the height that described many drain pipes are arranged on described knock out drum is identical.
According to another mode of execution, described many drain pipes are uniformly distributed around described separator tube periphery.
According to another mode of execution, described drain pipe is four, and the height that described four drain pipes are arranged on described knock out drum is identical, and described four drain pipes are uniformly distributed around described knock out drum periphery.
In order to solve the problems of the technologies described above, the technological scheme that the utility model proposes also comprises: propose a kind of gas-liquid separation device, wherein, comprises multiple knock out drum, connecting pipeline, liquid inlet pipe and muffler; Described each described knock out drum comprises at least one drain pipe, is located at described knock out drum sidewall and is communicated in described knock out drum inside; Described connecting pipeline is communicated between described multiple knock out drum, at least comprise feed liquor connecting pipeline and return-air connecting pipeline, described return-air connecting pipeline is arranged at height on described knock out drum higher than described feed liquor connecting pipeline, and described feed liquor connecting pipeline is arranged at height on described knock out drum higher than described drain pipe; Described liquid inlet pipe is communicated in described feed liquor connecting pipeline; Described muffler is communicated in described return-air connecting pipeline.
According to another mode of execution, described knock out drum is two, described feed liquor connecting pipeline comprises the feed liquor connecting tube be communicated between described two knock out drums, described return-air connecting pipeline comprises the return-air connecting tube be communicated between described two knock out drums, described liquid inlet pipe is communicated in affiliated feed liquor connecting tube, and described muffler is communicated in affiliated return-air connecting tube.
According to another mode of execution, described connecting pipeline is vacuum heat-insulating pipe.
In order to solve the problems of the technologies described above, the technological scheme that the utility model proposes also comprises: propose a kind of L-CNG refueling system, wherein, comprises storage tank, high-pressure plunger pump and the gas-liquid separation device described at least one; Described storage tank has liquid outlet and gas phase mouth; Described high-pressure plunger pump is communicated at least one filling machine; The described liquid inlet pipe of at least one gas-liquid separation device described is communicated in described liquid outlet, and described muffler is communicated in described gas phase mouth, and described drain pipe is communicated in described high-pressure plunger pump.
In order to solve the problems of the technologies described above, the technological scheme that the utility model proposes also comprises: propose a kind of L-CNG refueling system, wherein, comprises storage tank, high-pressure plunger pump and the gas-liquid separation device described at least one; Described storage tank has liquid outlet and gas phase mouth; Described high-pressure plunger pump is communicated at least one filling machine; Described at least one gas-liquid separation device described, liquid inlet pipe is communicated in described liquid outlet, and described muffler is communicated in described gas phase mouth, and described drain pipe is communicated in described high-pressure plunger pump.
As shown from the above technical solution, the beneficial effects of the utility model are: the gas-liquid separation device that the utility model proposes is when being applied in L-CNG refueling system, LNG enters in buffering tank body by storage tank, in buffering tank body, LNG gas phase is separated completely with liquid phase, therefore the medium flowing into high-pressure plunger pump is entirely LNG single phase flow, avoids the problem of cavitation erosion and instability of flow.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model L-CNG refueling system first mode of execution;
Fig. 2 is the plan view of the utility model gas-liquid separation device first mode of execution.
Wherein, description of reference numerals is as follows:
1. knock out drum; 2. muffler; 3. liquid inlet pipe; 4-1. drain pipe; 4-2. drain pipe; 4-3. drain pipe; 4-4. drain pipe; 5. storage tank; 6. high-pressure plunger pump.
Embodiment
The exemplary embodiments embodying the utility model feature & benefits will describe in detail in the following description.Be understood that the utility model can have various changes in different embodiments, it neither departs from scope of the present utility model, and explanation wherein and to be shown in be the use explained in essence, and be not used to limit the utility model.
Gas-liquid separation device mode of execution one
As depicted in figs. 1 and 2, the first mode of execution of the gas-liquid separation device that the utility model proposes.In the present embodiment, this gas-liquid separation device comprises knock out drum 1, liquid inlet pipe 3, four drain pipes and muffler 2.
As depicted in figs. 1 and 2, in the present embodiment, knock out drum 1 is in O-ring tubular, and knock out drum 1 upper end has an opening, and knock out drum 1 also comprises one in order to close the blind flange of this opening.In other embodiments, the horizontal section of knock out drum 1 is not limited to circle (namely cylindric), and other structures also can be selected to substitute the enclosed construction of blind flange as closing openings, all not as limit.In addition, in the present embodiment, blind flange is provided with safe diffusion device, such as Safety relief valve etc.
As depicted in figs. 1 and 2, in the present embodiment, liquid inlet pipe 3, drain pipe and muffler 2 is all located at knock out drum 1 sidewall and is communicated in knock out drum 1 inside.Further, in order to ensure the normal separation of gas phase and liquid phase, the height of drain pipe need lower than liquid inlet pipe 3, and the height of muffler 2 need higher than liquid inlet pipe 3.It should be noted that, the quantity of drain pipe is not unique, but at least need arrange a drain pipe to ensure fluid function.And in the present embodiment, four drain pipe 4-1, the height that 4-2,4-3,4-4 are arranged on knock out drum 1 is identical, and four drain pipe 4-1,4-2,4-3,4-4 are uniformly distributed around knock out drum 1 periphery, namely in crossing distribution.
L-CNG refueling system mode of execution one
As shown in Figure 1, the first mode of execution of the L-CNG refueling system that the utility model proposes, this mode of execution corresponds to the first mode of execution of above-mentioned gas-liquid separation device.In the present embodiment, this L-CNG refueling system mainly comprises storage tank 5, high-pressure plunger pump 6 and above-mentioned gas-liquid separation device.Wherein, storage tank 5 has liquid outlet and gas phase mouth, and high-pressure plunger pump 6 is communicated at least one filling machine, and the liquid inlet pipe 3 of gas-liquid separation device is communicated in liquid outlet, and muffler 2 is communicated in gas phase mouth, drain pipe 4-1, and 4-2,4-3,4-4 are communicated in high-pressure plunger pump 6.
The main working process of this L-CNG refueling system is as follows:
When L-LNG refueling system works, high-pressure plunger pump 6 starts, and the LNG in storage tank 5 enters in knock out drum 1 via liquid outlet and liquid inlet pipe 3.Afterwards, LNG standing separation in knock out drum 1 becomes liquid and gas, and wherein gas phase is got back in storage tank 5 via muffler 2 and gas phase mouth, liquid phase then with single phase flow form via each drain pipe 4-1,4-2,4-3,4-4 flow into high-pressure plunger pump 6.LNG is pressurized to default value and carries out gasification to LNG and changes CNG into by high-pressure plunger pump 6 again, and the CNG the most at last after gasification pressurization is filled in the carrier of such as car bottle by related process pipe network.
Gas-liquid separation device mode of execution two
Second mode of execution of the gas-liquid separation device that the utility model proposes, its structure is roughly the same in the first mode of execution, and difference is: in the present embodiment, and this gas-liquid separation device comprises two knock out drums, connecting pipeline, liquid inlet pipe and mufflers.Wherein, connecting pipeline is communicated between multiple knock out drum, and connecting pipeline at least comprises feed liquor connecting tube and return-air connecting tube, be arranged at height on knock out drum return-air connecting tube higher than feed liquor connecting pipeline, be arranged at height on described knock out drum feed liquor connecting tube higher than drain pipe, and liquid inlet pipe is communicated in feed liquor connecting tube, muffler is communicated in return-air connecting tube.In addition, in the present embodiment, this connecting pipeline selects vacuum heat-insulating pipe, to reduce the heat losses of pipeline.It should be noted that, in other embodiments, each gas-liquid separation device also can comprise two or more knock out drum, accordingly, connecting pipeline need be accelerated corresponding feed liquor connecting tube and return-air connecting tube, and each feed liquor connecting tube is interconnected and is jointly communicated in liquid inlet pipe, same, each return-air connecting tube is interconnected and is jointly communicated in muffler.
L-CNG refueling system mode of execution two
Second mode of execution of the L-CNG refueling system that the utility model proposes, this mode of execution corresponds to the second mode of execution of above-mentioned gas-liquid separation device.In the present embodiment, this L-CNG refueling system mainly comprises storage tank, high-pressure plunger pump and above-mentioned gas-liquid separation device.Further, storage tank has liquid outlet and gas phase mouth, and high-pressure plunger pump is communicated at least one filling machine, and the liquid inlet pipe of gas-liquid separation device is communicated in liquid outlet, and muffler is communicated in gas phase mouth, and drain pipe is communicated in high-pressure plunger pump.
It should be noted that, in two mode of executions of above-mentioned L-CNG refueling system, all can comprise more than one gas-liquid separation device, and be communicated with by related process pipeline, not repeat them here.
Though with reference to several L-CNG refueling system exemplary embodiment describing gas-liquid separation device of the present utility model and there is this device, should be understood that term used be illustrate and illustrative, and not restrictive.Specifically can implement in a variety of forms due to the utility model and not depart from its design or essence, therefore, above-described embodiment is not limited to any aforesaid details, and explain widely in the design that should limit in claim of enclosing and scope, therefore the whole change fallen in claim or its equivalent scope and remodeling all should be claim of enclosing and contained.
Claims (10)
1. a gas-liquid separation device, is characterized in that, comprising:
Knock out drum (1), in sealing tubular;
Liquid inlet pipe (3), is located at described knock out drum (1) sidewall and is communicated in described knock out drum (1) inside;
At least one drain pipe, be located at described knock out drum (1) sidewall and be communicated in described knock out drum (1) inside, described drain pipe height is lower than described liquid inlet pipe (3); And
Muffler (2), be located at described knock out drum (1) sidewall and be communicated in described knock out drum (1) inside, described muffler (2) height is higher than described liquid inlet pipe (3).
2. gas-liquid separation device according to claim 1, it is characterized in that, described knock out drum (1) upper end has an opening, and described knock out drum (1) also comprises a seal structure, in order to close described opening, described seal structure is provided with safe diffusion device.
3. gas-liquid separation device according to claim 1, is characterized in that, described drain pipe is many, and the height that described many drain pipes are arranged on described knock out drum (1) is identical.
4. gas-liquid separation device according to claim 3, is characterized in that, described many drain pipes are uniformly distributed around described knock out drum (1) periphery.
5. gas-liquid separation device according to claim 1, it is characterized in that, described drain pipe is four, described four drain pipes (4-1,4-2,4-3, height 4-4) be arranged on described knock out drum (1) is identical, and described four drain pipes (4-1,4-2,4-3,4-4) be uniformly distributed around described knock out drum (1) periphery.
6. a gas-liquid separation device, is characterized in that, comprising:
Multiple knock out drum, each described knock out drum comprises at least one drain pipe, is located at described knock out drum sidewall and is communicated in described knock out drum inside;
Connecting pipeline, be communicated between described multiple knock out drum, at least comprise feed liquor connecting pipeline and return-air connecting pipeline, described return-air connecting pipeline is arranged at height on described knock out drum higher than described feed liquor connecting pipeline, and described feed liquor connecting pipeline is arranged at height on described knock out drum higher than described drain pipe;
Liquid inlet pipe, is communicated in described feed liquor connecting pipeline; And
Muffler, is communicated in described return-air connecting pipeline.
7. gas-liquid separation device according to claim 6, it is characterized in that, described knock out drum is two, described feed liquor connecting pipeline comprises the feed liquor connecting tube be communicated between described two knock out drums, described return-air connecting pipeline comprises the return-air connecting tube be communicated between described two knock out drums, described liquid inlet pipe is communicated in affiliated feed liquor connecting tube, and described muffler is communicated in affiliated return-air connecting tube.
8. gas-liquid separation device according to claim 6, is characterized in that, described connecting pipeline is vacuum heat-insulating pipe.
9. a L-CNG refueling system, is characterized in that, comprising:
Storage tank (5), has liquid outlet and gas phase mouth;
High-pressure plunger pump (6), is communicated at least one filling machine; And
At least one gas-liquid separation device as described in any one of claim 1 to 5, described liquid inlet pipe (3) is communicated in described liquid outlet, described muffler (2) is communicated in described gas phase mouth, and described drain pipe is communicated in described high-pressure plunger pump (6).
10. a L-CNG refueling system, is characterized in that, comprising:
Storage tank, has liquid outlet and gas phase mouth;
High-pressure plunger pump, is communicated at least one filling machine; And
At least one gas-liquid separation device as described in claim 6 to 8, described liquid inlet pipe is communicated in described liquid outlet, and described muffler is communicated in described gas phase mouth, and described drain pipe is communicated in described high-pressure plunger pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420859116.6U CN204512941U (en) | 2014-12-30 | 2014-12-30 | Gas-liquid separation device and there is the L-CNG refueling system of this device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420859116.6U CN204512941U (en) | 2014-12-30 | 2014-12-30 | Gas-liquid separation device and there is the L-CNG refueling system of this device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512941U true CN204512941U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420859116.6U Expired - Fee Related CN204512941U (en) | 2014-12-30 | 2014-12-30 | Gas-liquid separation device and there is the L-CNG refueling system of this device |
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| Country | Link |
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| CN (1) | CN204512941U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107304972A (en) * | 2016-04-18 | 2017-10-31 | 安瑞科(廊坊)能源装备集成有限公司 | Natural gas hydraulic substation and its unload gas system |
-
2014
- 2014-12-30 CN CN201420859116.6U patent/CN204512941U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107304972A (en) * | 2016-04-18 | 2017-10-31 | 安瑞科(廊坊)能源装备集成有限公司 | Natural gas hydraulic substation and its unload gas system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20211230 |