CN203010199U - Compressed natural gas supply station capable of recycling compressor waste gas - Google Patents
Compressed natural gas supply station capable of recycling compressor waste gas Download PDFInfo
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- CN203010199U CN203010199U CN 201220737050 CN201220737050U CN203010199U CN 203010199 U CN203010199 U CN 203010199U CN 201220737050 CN201220737050 CN 201220737050 CN 201220737050 U CN201220737050 U CN 201220737050U CN 203010199 U CN203010199 U CN 203010199U
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- gas
- compressor
- waste gas
- compressed natural
- supply station
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Abstract
The utility model discloses a compressed natural gas supply station capable of recycling compressor waste gas. The station comprises a total gas inlet pipe, a gas conveying channel and a gas recovering channel, wherein the gas conveying channel comprises an inlet gas pressure stabilizing tank, a dewatering device, multiple groups of in-parallel compressors, gas storage cylinders and a gas filling machine which are sequentially connected in series through a gas pipe, and the gas recovering channel comprises a recovery pressure stabilizing tank and a depressurizing device and is connected among waste gas discharge ports of the compressors and the total gas inlet pipe through the gas pipe. According to the compressed natural gas supply station capable of recycling the compressor waste gas, the waste gas discharged from the compressors can be recovered and recycled, so that the utilization ratio of natural gas is increased. The compressed natural gas supply station is economical and environment-friendly.
Description
Technical field
The utility model relates to a kind of supply station, relates in particular to a kind of compressed natural gas supply station of compressor waste gas recycling.
Background technique
The compressed natural gas supply station of prior art generally comprises surge tank, dewatering unit, compressor, air cylinder group, filling machine, these devices interconnect by tracheae successively, carry out the drying compression with the rock gas to the outer input of standing and process and be stored in the air cylinder group, and by filling machine, the compressed natural gas that stores in the air cylinder group is flowed to outside compressed natural gas gas equipment.according to the working principle of compressor and fill the requirement of aerating technique, after each compressor operating is shut down, in compressor body as compression cylinders at different levels, all can leave the rock gas that does not drain and pressure is different in the parts such as separator, when again starting compressor, the unloaded zero load startup of gas, prevent the motor overload operation that ensures safety, and be also the structural requirement of compressor itself, the component such as each parts under the maintenance outage state such as filler are not in pressured state for a long time, the working life of elongated component, must be with the rock gas of these different pressures by manual operation release discharging in the atmosphere, therefore the every work of compressor once will produce the gas that once must discharge, be so-called compressor waste gas.Because the compressed natural gas supply station of prior art directly is discharged into these compressor waste gas in air, the utilization ratio of rock gas is lower, and atmosphere is polluted.
The model utility content
The utility model provides a kind of compressed natural gas supply station of compressor waste gas recycling, can the waste gas of compressor discharge be reclaimed and cycling and reutilization, has improved gas utilization factor, economic environmental protection.
The utility model is realized by the following technical solutions:
A kind of compressed natural gas supply station of compressor waste gas recycling, comprise total inlet pipe and the conveying gas circuit that is connected with total inlet pipe, described conveying gas circuit comprises air inlet surge tank, dewatering unit, mutual many groups compressor, air cylinder group, the filling machine in parallel that is connected in series successively by tracheae, and described compressor is provided with suction port, air outlet, Waste gas outlet; Be characterized in, the compressed natural gas supply station of described this compressor waste gas recycling also comprises the recovery gas circuit, and described recovery gas circuit comprises recovery surge tank and the decompressor that connects by tracheae; The suction port of described recovery surge tank is connected by the Waste gas outlet of tracheae with many groups compressor of parallel connection; The air outlet of described decompressor is connected with total inlet pipe by tracheae.
The compressed natural gas supply station of above-mentioned compressor waste gas recycling is characterized in that described decompressor also comprises: two pressure gauges, two ball valves 222 and 224, pressure governors, a safety check, a stop valve; Described ball valve 222, pressure governor, ball valve 224, safety check are connected in series successively; One end of described stop valve is connected with the suction port of ball valve 222, and its other end is connected with the air outlet of safety check; Two described pressure gauges are separately positioned on the air outlet of suction port and the safety check of ball valve 222.
The utlity model has following good effect:
The utility model is carried gas circuit and is reclaimed gas circuit owing to being provided with, and reclaim gas circuit and comprised recovery surge tank and the decompressor that connects by tracheae, the Waste gas outlet of the compressor in reclaiming gas circuit one end and being arranged on the conveying gas circuit is connected, its the other end is connected with total inlet pipe, thereby the compressor waste gas that makes compressor discharge is input to total inlet pipe after voltage stabilizing and decompression in reclaiming gas circuit in, and again enter in the conveying gas circuit recycling, improved gas utilization factor, economic environmental protection is with a wide range of applications.
Description of drawings
Fig. 1 is the schematic diagram of the compressed natural gas supply station of a kind of compressor waste gas recycling of the utility model;
Fig. 2 is the structural representation of decompressor of the compressed natural gas supply station of a kind of compressor waste gas of the utility model recycling;
Fig. 3 is the schematic flow sheet of the compressed natural gas supply station Application Example of a kind of compressor waste gas recycling of the utility model.
Embodiment
Below in conjunction with accompanying drawing, by describing a better specific embodiment in detail, the utility model is further elaborated.
Consult shown in accompanying drawing 1, the compressed natural gas supply station of a kind of compressor waste gas recycling of the utility model comprises total inlet pipe 10 and the conveying gas circuit 1 that is connected with total inlet pipe 10, and this conveying gas circuit 1 comprises air inlet surge tank 11, dewatering unit 12, mutual many groups compressor 13, air cylinder group 14, the filling machine 15 in parallel that is connected in series successively by tracheae 20.Compressor 13 wherein is provided with suction port 131, air outlet 132, Waste gas outlet 133.The compressed natural gas supply station of this compressor waste gas recycling also comprises recovery gas circuit 2, and this recovery gas circuit 2 comprises: by recovery surge tank 21 and the decompressor 22 of tracheae 20 connections.The suction port that reclaims surge tank 21 is connected by the Waste gas outlet 133 of tracheae 20 with many groups compressor 13 of parallel connection; The air outlet of decompressor 22 is connected with total inlet pipe 10 by tracheae 20.Solid line in accompanying drawing 1 represents to carry gas circuit 1, and dotted line represents to reclaim gas circuit 2, and arrow represents the gas throughput direction.
Consult shown in accompanying drawing 2, the decompressor 22 that reclaims in gas circuit 2 also comprises two pressure gauges 221, two ball valves 222 and 223, pressure governors 224, a safety check 225, a stop valve 226.Ball valve 222, pressure governor 224, ball valve 223, safety check 225 are connected in series successively; One end of stop valve 226 is connected with the suction port of ball valve 222, and its other end is connected with the air outlet of safety check 225; Two pressure gauges 221 are separately positioned on the air outlet of suction port and the safety check 225 of ball valve 222, and namely two pressure gauges 221 are separately positioned on suction port and the air outlet of decompressor 22.In accompanying drawing, arrow represents the gas throughput direction.Two pressure gauges 221 are separately positioned on suction port and the air outlet of decompressor 22, and gas is monitored through the air pressure of decompressor 22 front and back, can adjust in real time according to the actual pressure situation air pressure adjustment scope of decompressor 22.During the decompressor normal operation, stop valve 226 is in cut-off state, gas is through after ball valve 222, by pressure governor 224, gas atmosphere is adjusted to predefined air pressure range, carry outward through ball valve 223 and the backward decompressor of safety check 225 afterwards, safety check 225 has prevented that the less gas backstreaming of air pressure mixes with pressurized gas after decompression.When pressure governor 224 or ball valve 222,223 broke down, opening stop valve 226 can be controlled the flow of pressurized gas by the unlatching size of adjustable cut-off valve 226, gas is discharged, and enters intake manifold 10.Above-mentioned ball valve, pressure governor, stop valve, safety check, pressure gauge all adopt the product of prior art.
In the present embodiment, the compressed natural gas supply station of the utility model compressor waste gas recycling is provided with and carries gas circuit 1 and reclaim gas circuit 2.Conveying gas circuit 1 comprises air inlet surge tank 11, dewatering unit 12, mutual two groups of compressors 13, air cylinder group 14, the filling machine 15 in parallel that is connected in series successively by tracheae 20.And one section tracheae 20 also has been connected in parallel at the two ends of the dewatering unit 12 of carrying gas circuit 1.Reclaiming gas circuit 2 comprises: by recovery surge tank 21 and the decompressor 22 of tracheae 20 connections.The suction port that reclaims surge tank 21 is connected by the Waste gas outlet 133 of tracheae 20 with many groups compressor 13 of parallel connection; The air outlet of decompressor 22 is connected with total inlet pipe 10 by tracheae 20.And all being provided with valve on the every group of tracheae 20 in carrying gas circuit 1 and reclaiming gas circuit 2 controls air-flow.Surge tank in the present embodiment, dewatering unit, compressor, air cylinder group, filling machine, tracheae are the product of commercially available prior art.
Consult shown in accompanying drawing 3, the compressed natural gas supply station of using a kind of compressor waste gas recycling of the utility model comprises following steps:
Step 1 in the conveying gas circuit 1 of outside rock gas by the compressed natural gas supply station of total inlet pipe 10 input compressor waste gas recyclings, is carried out after voltage stabilizing and dewatering unit 12 carry out drying through air inlet surge tank 11, respectively the many groups of input compressors 13 successively.
Step 2, rock gas after compression, generates compressed natural gas in each group compressor 13, and also produces compressor waste gas after the each shutdown of compressor.
Step 3, each compressed natural gas of organizing in compressor 13 is inputted and is stored in air cylinder group 14 by relief opening 132 and the process tracheae 20 of compressor 13, by filling machine 15, the compressed natural gass in air cylinder group 14 is flowed to external equipment.
Step 4, each is organized the Waste gas outlet 133 of compressor waste gas by compressor 13 in compressor 13 and enters and reclaim in gas circuit 2, and carries out after voltage stabilizing and 22 pairs of air pressure sizes of decompressor regulate successively input total inlet pipe 10 through reclaiming surge tank 21.
Above-mentioned step 1 loops to step 4 always.
In the present embodiment, the rock gas air pressure that supply station transports outward is in 0.15 ~ 0.35MPa scope, and is more unstable, and its implementation step in the utility model is:
Step 1, in the conveying gas circuit 1 of rock gas by the compressed natural gas supply station of total inlet pipe 10 input compressor waste gas recyclings, after 11 voltage stabilizings of air inlet surge tank are the rock gas of air pressure 0.24MPa, be input to carry out drying in dewatering unit 12 after, input respectively the suction port 131 of two groups of compressors 13; Due to the dewatering unit 12 two ends one section tracheae 20 that has been connected in parallel, when dewatering unit 12 broke down, air pressure was that the rock gas of 0.24MPa also can be directly inputted to by the tracheae 20 that is connected in parallel with dewatering unit 12 suction port 131 of two groups of compressors 13.
Step 2, rock gas after compression, generates the compressed natural gas of high pressure in each group compressor 13, and also produces the different compressor waste gas of pressure after the each shutdown of compressor.
Step 3, each compressed natural gas of organizing in compressor 13 is inputted and is stored in air cylinder group 14 by relief opening 132 and the process tracheae 20 of compressor 13, by filling machine 15, the compressed natural gass in air cylinder group 14 is flowed to external equipment.
Step 4, simultaneously, the Waste gas outlet 133 of each compressor waste gas of organizing the high pressure in compressor 13 by compressor 13 enters and reclaims in gas circuit 2, and be the compressor waste gas of air pressure 1.5 ~ 2MPa through reclaiming surge tank 21 voltage stabilizings, be input to afterwards the compressor waste gas that decompressor 22 decompressions are adjusted to air pressure 0.15 ~ 0.35MPa, and be input in total inlet pipe 10 by tracheae 20, input together with rock gas that supply station transports outward carry continue in gas circuit 1 recycling.
In sum, the utility model is carried gas circuit and is reclaimed gas circuit owing to being provided with, and reclaim gas circuit and comprised recovery surge tank and the decompressor that connects by tracheae, the Waste gas outlet of the compressor in reclaiming gas circuit one end and being arranged on the conveying gas circuit is connected, its the other end is connected with total inlet pipe, thereby the compressor waste gas that makes compressor discharge is input to total inlet pipe after voltage stabilizing and decompression in reclaiming gas circuit in, and again enter in the conveying gas circuit recycling, improved gas utilization factor, economic environmental protection is with a wide range of applications.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple modification of the present utility model with to substitute will be all apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (2)
1. the compressed natural gas supply station of compressor waste gas recycling, comprise total inlet pipe (10) and the conveying gas circuit (1) that is connected with total inlet pipe (10), described conveying gas circuit (1) comprises air inlet surge tank (11), dewatering unit (12), mutual many groups compressor (13), air cylinder group (14), the filling machine (15) in parallel that is connected in series successively by tracheae (20), and described compressor (13) is provided with suction port (131), air outlet (132), Waste gas outlet (133); It is characterized in that, the compressed natural gas supply station of described this compressor waste gas recycling also comprises recovery gas circuit (2), and described recovery gas circuit (2) comprises recovery surge tank (21) and the decompressor (22) that connects by tracheae (20); The suction port of described recovery surge tank (21) is connected by the Waste gas outlet (133) of tracheae (20) with many groups compressor (13) of parallel connection; The air outlet of described decompressor (22) is connected with total inlet pipe (10) by tracheae (20).
2. the compressed natural gas supply station of compressor waste gas as claimed in claim 1 recycling, it is characterized in that, described decompressor (22) also comprises: two pressure gauges (221), two ball valves (222,223), a pressure governor (224), a safety check (225), a stop valve (226); Described ball valve (222), pressure governor (224), ball valve (223), safety check (225) are connected in series successively; One end of described stop valve (226) is connected with the suction port of ball valve (222), and its other end is connected with the air outlet of safety check (225); Two described pressure gauges (221) are separately positioned on the air outlet of suction port and the safety check (225) of ball valve (222).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737050 CN203010199U (en) | 2012-12-28 | 2012-12-28 | Compressed natural gas supply station capable of recycling compressor waste gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737050 CN203010199U (en) | 2012-12-28 | 2012-12-28 | Compressed natural gas supply station capable of recycling compressor waste gas |
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| Publication Number | Publication Date |
|---|---|
| CN203010199U true CN203010199U (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220737050 Expired - Lifetime CN203010199U (en) | 2012-12-28 | 2012-12-28 | Compressed natural gas supply station capable of recycling compressor waste gas |
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| CN (1) | CN203010199U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899917A (en) * | 2012-12-28 | 2014-07-02 | 上海万事红燃气技术发展有限公司 | Compressed natural gas supply station and compressor exhaust gas recycling method thereof |
| CN106030184A (en) * | 2014-02-25 | 2016-10-12 | 通用电气公司 | Modular compressed natural gas system for use at wellsite |
-
2012
- 2012-12-28 CN CN 201220737050 patent/CN203010199U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103899917A (en) * | 2012-12-28 | 2014-07-02 | 上海万事红燃气技术发展有限公司 | Compressed natural gas supply station and compressor exhaust gas recycling method thereof |
| CN106030184A (en) * | 2014-02-25 | 2016-10-12 | 通用电气公司 | Modular compressed natural gas system for use at wellsite |
| CN106030184B (en) * | 2014-02-25 | 2019-05-31 | 通用电气公司 | Modularization CNG system for being used at well site |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130619 |
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| CX01 | Expiry of patent term |