CN206723839U - CNG air entraining substation systems - Google Patents
CNG air entraining substation systems Download PDFInfo
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- CN206723839U CN206723839U CN201720279863.6U CN201720279863U CN206723839U CN 206723839 U CN206723839 U CN 206723839U CN 201720279863 U CN201720279863 U CN 201720279863U CN 206723839 U CN206723839 U CN 206723839U
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- Prior art keywords
- gas
- air entraining
- aerating
- entraining substation
- control disk
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Abstract
The utility model discloses a kind of CNG air entraining substation systems, belong to natural gas equipment design and manufacturing technology field.Compressor operating duration can significantly be shortened during to equipment aerating of being bullied by providing one kind, so as to extend the CNG air entraining substation systems of the compressor service life as air entraining substation core gas part.Described CNG air entraining substation systems include discharge column, compression mechanism, sequential control disk, gas storage mechanism and filling machine, described discharge column, compression mechanism and sequential control disk sequential communication, described gas storage mechanism is connected in parallel on the gas output end of the sequential control disk with what described filling machine was interconnected, described CNG air entraining substation systems also include bypass low pressure aerating path, and the low-pressure gas being stored in outside transloading equipment is by bypass low pressure aerating path, described sequential control disk and the filling machine directly to equipment aerating of being bullied.
Description
Technical field
A kind of CNG air entraining substation systems are the utility model is related to, belong to natural gas equipment design and manufacturing technology field.
Background technology
CNG gas stations are the places that high-pressure natural gas is provided for gas-fueled vehicles.According to the gas source condition of gas station, stand in
The difference of natural gas processing process, CNG gas stations mainly include three major classes：Normal station, refueling mother station and air entraining substation.
Normal station refers to directly take gas from urban pipe network, and natural gas is after processing again directly to fuel gas vehicle aerating.Often
Generally there are the process equipments such as pressure regulation metering sled, drier, desulfurizing tower, compressor sled, gas storage facility and filling machine in the station of rule station.Add
Gas mother station refers in addition to the function with normal station, can also be by being located at the aerating post in station directly to CNG trailer aeratings.
The compressed natural gas handled well is transported to substation and provides source of the gas for substation by CNG trailers.
CNG air entraining substations are to handle the natural gas after compressing as source of the gas using mother station, are day using CNG trailers as means of transport
The gas station of right gas automobile supply.Air entraining substation has the functions such as compression, gas storage, aerating, and scale of building a station is typically 1~20,000
Nm3/d。
CNG air entraining substations are after CNG trailers will drag the natural gas come by compressor sled pressurization from mother station, through sequential control
Disk is inflated by the order of high, medium and low voltage to gas storage facility.When have CNG automobile enter the station aerating when, compressed natural gas is logical first
Cross filling machine takes gas to give CNG automobile aerating by the order of basic, normal, high pressure from gas storage facility.Can according to above-mentioned aerating principle
Know, existing CNG air entraining substations are made up of in the aerating of low pressure stage discharge column, compressor, sequential control disk and aerating
Aerating path must whole operation side can realize work to equipment aerating of being bullied, so as to cause as air entraining substation core
The compressor of part is chronically at running status, shortens the service life of compressor.
Meanwhile when CNG filling machines give CNG automobile aerating, without source of the gas in trailer, and the gas storage in gas storage facility
Pressure is not enough to CNG automobile aerating again when, conventional process flow can only close compressor, after waiting standby CNG trailers in place, then
Start compressor and give CNG automobile aerating；After compressor is closed, the automobile of power progress aerating is provided using compressor to be stopped
Aerating；Start/stop of compressor number increases simultaneously, it will substantially reduces the service life of compressor.And compressor adds as CNG
The nucleus equipment of gas substation, once compressor goes wrong, whole gas station will be unable to do business.
In addition, the setting of the sequential control disc program configured according to compressor, the minimum the blowing pressure of middle pressure gas storage facility
It it is 180 kilograms for 18MPa.Gas storage facility as pressure vessel must carry out annual test, when carrying out annual test, it is necessary to which gas storage is set
Gas in applying is vented, and gas amount of diffusin is very big, causes energy waste.
With the development of CNG automobile in recent years, CNG air entraining substation construction increases, construction, fortune with reference to each air entraining substation
Battalion's experience, the constantly technological process to CNG air entraining substations optimize, simplifies processing, be adapted to energy-conservation, safety in production will
Ask, be easy to operation management just to become the problem of those skilled in the art are badly in need of considering.
Utility model content
Technical problem to be solved in the utility model is：There is provided one kind can be significantly during to equipment aerating of being bullied
Shorten compressor operating duration, so as to extend the CNG air entraining substations of the compressor service life as air entraining substation core gas part
System.
Technical scheme is used by solve above-mentioned technical problem：A kind of CNG air entraining substation systems, including discharge column,
Compression mechanism, sequential control disk, gas storage mechanism and filling machine, described discharge column, compression mechanism and sequential control disk order
Connection, the gas output end for being attempted by the sequential control disk that described gas storage mechanism is interconnected with described filling machine
On, described CNG air entraining substation systems also include bypass low pressure aerating path, the low-pressure gas being stored in outside transloading equipment
By bypass low pressure aerating path, described sequential control disk and the filling machine directly to equipment aerating of being bullied.
The beneficial effects of the utility model are：The application makes to be stored in by setting a bypass low pressure aerating path
Low-pressure gas in outside transloading equipment is direct by the bypass low pressure aerating path, described sequential control disk and filling machine
To equipment aerating of being bullied.So, in the low pressure aerating stage of the process to equipment aerating of being bullied, can with make full use of as
The pressure that a kind of gas transfer equipment of CNG trailers has is directly to equipment aerating of being bullied, without having to pass through by unloading gas
The aerating path that post, compressor, sequential control disk and aerating are formed carries out aerating, so as to reach the low pressure aerating stage not
Need the purpose of startup compressor.And it is known that to one be bullied equipment aerating when, the low pressure aerating stage account for entirely
The very long section time in fueling process, so, it can significantly shorten compressor operating duration to reach, and then extend and be used as aerating
The purpose of the compressor service life of substation core gas part.
It is further that described bypass low pressure aerating path includes the bypass line for being serially connected with non-return valve, described side
Siphunculus road is serially connected between described discharge column and described sequential control disk, the low-pressure gas being stored in outside transloading equipment
Described bypass line, sequential control disk and filling machine are directly entered to equipment aerating of being bullied by unloading post.
Such scheme it is preferable that, cut-out is also serially connected with the gas input of the bypass line of the non-return valve
Valve.
It is further that described gas storage mechanism includes middle pressure gas cylinder group and high-pressure gas cylinder group, the sequential control
Gas output end on disk includes medium pressure gas output pipe and gases at high pressure output pipe；It is corresponding to be attempted by medium pressure gas
Middle pressure gas cylinder group on body output pipe is interconnected by the medium pressure gas output pipe with described filling machine, corresponding
The high-pressure gas cylinder group being attempted by the gases at high pressure output pipe passes through the gases at high pressure output pipe and described aerating
Machine is interconnected.
It is further that described CNG air entraining substation systems also include the road of falling letter shoot for being serially connected with non-return valve, described
The gas input on the road of falling letter shoot connects with described pressure pressure gas cylinder group, the gas output end on the road of falling letter shoot
It is connected on the gas transmission line between the compression mechanism and the discharge column.
Such scheme it is preferable that, be also serially connected with the gas input on the road of falling letter shoot of the non-return valve
Stop valve.
It is further to be serially connected with stop valve respectively at the both ends of the compression mechanism.
It is further to be also serially connected with non-return valve in the outside of the stop valve of compression mechanism output end.
Brief description of the drawings
Fig. 1 is the simplification structural representation of the utility model CNG air entraining substation systems.
In figure mark for：Discharge column 1, compression mechanism 2, sequential control disk 3, gas storage mechanism 4, filling machine 5, bypass low pressure add
Gas path 6, non-return valve 7, bypass line 8, stop valve 9, middle pressure gas cylinder group 10, high-pressure gas cylinder group 11, medium pressure gas output
Pipeline 12, gases at high pressure output pipe 13, the road of falling letter shoot 14.
Embodiment
It is that one kind provided by the utility model can significantly shorten compression during to equipment aerating of being bullied as shown in Figure 1
Machine operating time, so as to extend the CNG air entraining substation systems of the compressor service life as air entraining substation core gas part.It is described
CNG air entraining substation systems include discharge column 1, compression mechanism 2, sequential control disk 3, gas storage mechanism 4 and filling machine 5, it is described
Discharge column 1, compression mechanism 2 and the sequential communication of sequential control disk 3, described gas storage mechanism 4 and the described phase of filling machine 5 interconnect
Logical is connected in parallel on the gas output end of the sequential control disk 3, and described CNG air entraining substation systems also include bypass low pressure and added
Gas path 6, the low-pressure gas being stored in outside transloading equipment pass through bypass low pressure aerating path 6, the described sequential control
Disk 3 and filling machine 5 are directly to equipment aerating of being bullied.The application makes storage by setting a bypass low pressure aerating path 6
Low-pressure gas in outside transloading equipment passes through the bypass low pressure aerating path 6, described sequential control disk 3 and filling machine
5 directly to equipment aerating of being bullied.So, can be with fully profit in the low pressure aerating stage of the process to equipment aerating of being bullied
With the pressure that a kind of gas transfer equipment of such as CNG trailers has directly to equipment aerating of being bullied, without have to pass through by
The aerating path that discharge column 1, compressor, sequential control disk 3 and filling machine 5 are formed carries out aerating, so as to reach in low pressure
The aerating stage need not start the purpose of compressor.And it is known that to one be bullied equipment aerating when, low pressure aerating rank
Section account for the very long section time in whole fueling process, so, can significantly shorten compressor operating duration, Jin Eryan to reach
The purpose of the long compressor service life as air entraining substation core gas part.
In above-mentioned embodiment, in order to simplify the structure of the bypass low pressure aerating path 6, reach both simple and clear reality
The cost for installing and using and reducing equipment of existing above-mentioned function, again convenient scene, bypass low pressure aerating described herein
Path 6 includes being serially connected with the bypass line 8 of non-return valve 7, described bypass line 8 be serially connected in described discharge column 1 with it is described
Between sequential control disk 3, the low-pressure gas being stored in outside transloading equipment is directly entered described bypass pipe by unloading post 1
Road 8, sequential control disk 3 and filling machine 5 are to equipment aerating of being bullied.Now, preferable structure is the bypass pipe in the non-return valve 7
Stop valve 9 is also serially connected with the gas input on road 8, with realize easily switch and realize after the completion of the low pressure aerating stage in,
The aerating in high pressure aerating stage.
Include middle pressure gas cylinder group 10 and high-pressure gas cylinder group 11 in conjunction with the gas storage mechanism 4 of existing air entraining substation,
Gas output end on sequential control disk 3 includes medium pressure gas output pipe 12 and gases at high pressure output pipe 13；It is corresponding simultaneously
Be connected on middle pressure gas cylinder group 10 on medium pressure gas export line 12 by the medium pressure gas output pipe 12 with it is described
Filling machine 5 is interconnected, and the corresponding high-pressure gas cylinder group 11 being attempted by the gases at high pressure output pipe 13 passes through the height
The characteristics of pressure gas export line 13 is interconnected with described filling machine 5.In order to which solve without source of the gas to occur in trailer must
Compressor must be cut off, so as to the technical problem of frequent start-stop occur, described CNG air entraining substation systems also include being serially connected with check
The road of falling letter shoot 14 of valve 7, the gas input on the road of falling letter shoot 14 connect with described middle pressure gas cylinder group 10,
The gas output end on the road of falling letter shoot 14 is connected to the gas transmission line between the compression mechanism 2 and the discharge column 1
On.So, when a kind of gas gas transloading equipment of trailer because aerating be exhausted into can not aerating when, then pass through the described conveying of falling gas
Pipeline 14 pours into a part of air pressure being stored in medium pressure gas cylinder group 10 in compressor, can both realize continuation aerating
Function, can keep again compressor to same be bullied equipment aerating when be unlikely to because the kind equipment of trailer one consumes because of aerating
Shut down to the greatest extent, and then reduce the number of compressor start-stop, reach and extend the purpose that compressor uses the longevity to close.Meanwhile in
When pressure gas cylinder group annual test needs emptying, the gas that can will wherein be stored by the described road of falling letter shoot 14 is compressing
Thoroughly it is discharged in aerating path under the cooperation of machine, and then avoids to run in natural gas straight and put in surrounding environment, solves work
For the discharge of the natural gas into air in one of putative greenhouse gases source, environment purification reached, protected the mesh of air
, and realize higher economic benefit.Meanwhile the structure of bypass low pressure aerating path 6 is used for reference, in falling for the non-return valve 7
Also stop valve 9 is serially connected with the gas input on letter shoot road 14.Referring concurrently to the structure of existing air entraining substation, for convenience
The switching of gas storage mechanism between the basic, normal, high pressure aerating stage, stop valve is serially connected with the both ends of the compression mechanism 2 respectively
9, also it is serially connected with non-return valve 7 in the outside of the stop valve 9 of the output end of compression mechanism 2.
Claims (8)
1. a kind of CNG air entraining substation systems, including discharge column (1), compression mechanism (2), sequential control disk (3), gas storage mechanism (4)
And filling machine (5), described discharge column (1), compression mechanism (2) and sequential control disk (3) sequential communication, described gas storage machine
Structure (4) is attempted by the gas output end of the sequential control disk (3) with what described filling machine (5) was interconnected, its feature
It is：Described CNG air entraining substation systems also include bypass low pressure aerating path (6), are stored in low in outside transloading equipment
Body of calming the anger is set by the bypass low pressure aerating path (6), described sequential control disk (3) and filling machine (5) directly to being bullied
Standby aerating.
2. CNG air entraining substation systems according to claim 1, it is characterised in that：Described bypass low pressure aerating path (6)
Bypass line (8) including being serially connected with non-return valve (7), described bypass line (8) be serially connected in described discharge column (1) with it is described
Sequential control disk (3) between, the low-pressure gas that is stored in outside transloading equipment by unload post (1) be directly entered it is described
Bypass line (8), sequential control disk (3) and filling machine (5) are to equipment aerating of being bullied.
3. CNG air entraining substation systems according to claim 2, it is characterised in that：Bypass line in the non-return valve (7)
(8) stop valve (9) is also serially connected with gas input.
4. according to the CNG air entraining substation systems described in claim 1,2 or 3, it is characterised in that：Described gas storage mechanism (4) bag
Include middle pressure gas cylinder group (10) and high-pressure gas cylinder group (11), the gas output end on the sequential control disk (3) includes middle pressure
Gas export line (12) and gases at high pressure output pipe (13)；It is corresponding to be attempted by medium pressure gas export line (12)
Middle pressure gas cylinder group (10) be interconnected by the medium pressure gas output pipe (12) and described filling machine (5), it is corresponding
The high-pressure gas cylinder group (11) being attempted by the gases at high pressure output pipe (13) passes through the gases at high pressure output pipe (13)
It is interconnected with described filling machine (5).
5. CNG air entraining substation systems according to claim 4, it is characterised in that：Described CNG air entraining substation systems also wrap
Include the road of falling letter shoot (14) for being serially connected with non-return valve (7), the gas input of the road of falling letter shoot (14) with it is described
Middle pressure gas cylinder group (10) connection, the gas output end of the road of falling letter shoot (14) be connected to the compression mechanism (2) and
On gas transmission line between the discharge column (1).
6. CNG air entraining substation systems according to claim 5, it is characterised in that：The conveying of falling gas in the non-return valve (7)
Also stop valve (9) is serially connected with the gas input of pipeline (14).
7. CNG air entraining substation systems according to claim 6, it is characterised in that：At the both ends of the compression mechanism (2) point
Stop valve (9) is not serially connected with.
8. CNG air entraining substation systems according to claim 7, it is characterised in that：In the cut-out of compression mechanism (2) output end
The outside of valve (9) is also serially connected with non-return valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720279863.6U CN206723839U (en) | 2017-03-21 | 2017-03-21 | CNG air entraining substation systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720279863.6U CN206723839U (en) | 2017-03-21 | 2017-03-21 | CNG air entraining substation systems |
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| Publication Number | Publication Date |
|---|---|
| CN206723839U true CN206723839U (en) | 2017-12-08 |
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|---|---|---|---|
| CN201720279863.6U Expired - Fee Related CN206723839U (en) | 2017-03-21 | 2017-03-21 | CNG air entraining substation systems |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870947A (en) * | 2017-03-21 | 2017-06-20 | 四川华亿石油天然气工程有限公司 | CNG air entraining substation systems |
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2017
- 2017-03-21 CN CN201720279863.6U patent/CN206723839U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106870947A (en) * | 2017-03-21 | 2017-06-20 | 四川华亿石油天然气工程有限公司 | CNG air entraining substation systems |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20171208 Termination date: 20200321 |