CN201944552U - Set-lattice gas-supply pressure relief device of compressed natural gas supply station - Google Patents
Set-lattice gas-supply pressure relief device of compressed natural gas supply station Download PDFInfo
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- CN201944552U CN201944552U CN2011200112494U CN201120011249U CN201944552U CN 201944552 U CN201944552 U CN 201944552U CN 2011200112494 U CN2011200112494 U CN 2011200112494U CN 201120011249 U CN201120011249 U CN 201120011249U CN 201944552 U CN201944552 U CN 201944552U
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- natural gas
- gas
- decompressor
- lattice
- collection lattice
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Abstract
The utility model relates to a set-lattice gas-supply pressure relief device of a compressed natural gas supply station, which comprises a natural gas storage set lattice and a set-lattice gas-supply pressure relief device connected with the pipeline of the natural gas storage set lattice, wherein the set-lattice gas-supply pressure relief device comprises a heating device and a pressure regulation device. The pipeline of the heating device is connected with a gas inlet of the set-lattice gas-supply pressure relief device, and the gas inlet is connected with the natural gas storage set lattice. The pressure regulation device is connected with the pipeline of the heating device. The pipeline of the pressure regulation device is connected with a gas outlet of the set-lattice gas-supply pressure relief device, and the gas outlet is connected with an external natural gas pipeline of a user. The natural gas storage set lattice is adopted to store compressed natural gas, and the natural gas storage set lattice is transported to transport the compressed natural gas to dispersed small and medium users, so the set-lattice gas-supply pressure relief device is convenient for transportation, is flexible, saves cost and reduces wasting of resources. The set-lattice gas-supply pressure relief device has small volume, less occupied land and light weight and is convenient for transportation.
Description
Technical field
The utility model relates to a kind of voltage-regulating technique that is used for compressed natural gas air feed field, is specifically related to a kind of collection lattice air feed decompressor of compressed natural gas supply station.
Background technique
At present, the gas line network of rock gas does not cover All Ranges as yet, the cities and towns, suburb of surrounding city and population from other places some non-pipe network areas such as concentration zones of living for example, need to adopt the technology of compressed natural gas, rock gas compression back is transported to the natural gas supply station in non-pipe network zone by extraordinary transport vehicle, again rock gas is carried out reduced pressure treatment, the air pressure of rock gas and temperature are reached be transferred to each user after the coincidence tube network mark standard and use.In the prior art, for the rock gas user of small-sized dispersion, part still adopts in the mode of underground installation natural gas line transmits rock gas, to disperseing the small user that rock gas is provided.Adopt the natural gas line transmission to transmit the mode of rock gas to the user, its shortcoming is, because small user's distributed points is disperseed, the rock gas gas consumption of its unique user is little simultaneously, if each small user constructs specially, row establishes underground natural gas line, then can cause a large amount of wastings of resources, because the phase mutual edge distance is far away, the maintenance and repair of its pipeline also have very big difficulty.
The model utility content
The utility model provides a kind of collection lattice air feed decompressor of compressed natural gas supply station, and what guarantee the mini gas user use the gas demand, and natural gas transportation is convenient, the cost of saving natural gas supply.
For achieving the above object, the utility model provides a kind of collection lattice air feed decompressor of compressed natural gas supply station, is characterized in, this device comprises rock gas and stores the collection lattice, and stores the collection lattice air feed decompressor that the collection lattice are connected by pipeline with this rock gas;
Above-mentioned collection lattice air feed decompressor comprises:
Heating equipment; This heating equipment pipeline connects the suction port of collection lattice air feed decompressor, and this suction port connects above-mentioned rock gas and stores the collection lattice; And,
The regulator that is connected by pipeline with above-mentioned heating equipment; This regulator pipeline connects the air outlet of collection lattice air feed decompressor; This air outlet connects external user's natural gas line.
Also be provided with thermometer on the above-mentioned heating equipment.
Above-mentioned regulator comprises the first pressure regulation assembly and the second pressure regulation assembly that is connected in series successively; Be provided with manually-operated gate and pressure gauge successively behind the air outlet of this first pressure regulation assembly; Be provided with manually-operated gate and pressure gauge successively after the giving vent to anger of this second pressure regulation assembly.
Above-mentioned rock gas stores the collection lattice and comprises several steel cylinders; This steel cylinder adopts horizontal or vertical setting; The bottle mouth position of this steel cylinder also is provided with cylinder valve; This cylinder valve is provided with decompressor.
Above-mentioned steel cylinder is provided with the collection screen work outward; This collection screen work adopts the channel-section steel of some no seam welding to make.
The pipeline that above-mentioned rock gas stores the collection lattice is provided with several sniffers.
Rock gas is stored the collection lattice be transported to the local user, if the mode that adopts single steel cylinder to unload gas separately, determine the quantity of the steel cylinder that needs are opened according to the Natural Gas Demand amount, give on the cylinder valve of corresponding steel cylinder decompressor is installed, the steel cylinder of opening respective numbers transfers to decompressor separately, decompressor carries out step-down to compressed natural gas, is transferred to the user through the rock gas of step-down by the road by the air outlet of decompressor separately and uses.
Concentrate the mode of unloading gas if adopt several steel cylinders, the compressed natural gas of several steel cylinder amounts is transferred to collection lattice air feed decompressor, heating equipment heats compressed natural gas, export regulator to, regulator carries out the adjustment of classification air pressure to compressed natural gas, pressure gauge shows the air pressure of compressed natural gas after step-down in real time simultaneously, and the qualified compressed natural gas that reaches requirement air pressure will export user pipe to through the rock gas of pressure regulation by pipeline.
The collection lattice air feed decompressor of the utility model compressed natural gas supply station, compare with prior art, its advantage is, the utility model has adopted rock gas to store collection lattice store compressed rock gas, stores the collection lattice by transport natural gas compressed natural gas is transported to the middle-size and small-size user place that distributes and disperse, convenient transportation, maneuverability, do not need to install the rock gas transmission pipeline and transport rock gas, save cost, reduce the wasting of resources;
Collection lattice air feed decompressor of the present utility model is simple in structure, and volume is little, take up an area of less, installation weight is light, is convenient to the transportation and the installation of device;
Each steel cylinder of the present utility model is provided with special-purpose rock gas cylinder valve, can to each steel cylinder special-purpose rock gas pressure governor be installed separately and carry out the pressure regulation of independent steel cylinder, simple operation.
Description of drawings
Fig. 1 is the structural representation that the rock gas of the collection lattice air feed decompressor of the utility model compressed natural gas supply station stores the collection lattice;
Fig. 2 is the structural representation of collection lattice air feed decompressor of the collection lattice air feed decompressor of the utility model compressed natural gas supply station.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
The utility model discloses a kind of collection lattice air feed decompressor of compressed natural gas supply station, this device comprises rock gas and stores collection lattice 1 and collection lattice air feed decompressor 2.Rock gas stores collection lattice 1 and is used for the store compressed rock gas, and collection lattice air feed decompressor 2 is used for that rock gas is stored the compressed natural gas that collects lattice 1 storage and reduces pressure.In the time need storing compressed natural gas in the collection lattice 1 to rock gas and reduce pressure, store at rock gas and to adopt metallic hose to set up gas circuit between collection lattice 1 and the collection lattice air feed decompressor 2 to connect.
As shown in Figure 1, the rock gas of each monomer stores and to include 4 * 5 totally 20 steel cylinders 11 in the collection lattice 1, and single bottle of volume of each steel cylinder 11 adopts 50 liters.Be provided with the collection screen work 13 of a cuboid outside these 20 steel cylinders 11, this collection screen work 13 adopts some 10 ﹟-12 ﹟ channel-section steels not have seam welding and makes.Steel cylinder 11 can adopt vertical or horizontal setting in collection screen work 13.Be shown as a kind of steel cylinder 11 among Fig. 1 and be arranged on the embodiment who collects in the screen work 13 in horizontal mode, the lateral length of this collection screen work 13 and the length of 4 times of steel cylinder 11 diameters are suitable, and the longitudinal length of collection screen work 13 and the length of 5 times of steel cylinder 11 diameters are suitable.Collection screen work 13 is separated into the cavity of 5 layers of level and setting parallel to each other by channel-section steel with its volume inside, has been arranged side by side 4 steel cylinders 11 in every layer of cavity, and collection screen work 13 stably is fixed on 20 steel cylinders 11 in its inner chamber.
On the bottleneck of each steel cylinder 11, be provided with a cylinder valve 14, open or close steel cylinder 11 by this cylinder valve, the release or the sealing of compressed natural gas in the control steel cylinder 11, the cylinder valve 14 of this special use natural gas steel cylinder is QF-5T model.The decompressor 12 of a rock gas special use can be installed on the cylinder valve 14 of each steel cylinder 11 as required, each decompressor 12 can reduce pressure to the compressed natural gas of relatively small amount in its pairing steel cylinder 11, make the air pressure intensity of this compressed natural gas step-down with the rock gas that meets standard household, the air outlet of decompressor 12 is connected to user's gas pipeline by the gas circuit of metallic hose, and output is given the user through the small amounts of natural gas of decompression.
The cylinder valve 14 of 20 steel cylinders 11 also all is provided with an air outlet and links together by tracheae, this tracheae is all without decompressor 12, not through decompression, this tracheae also all connects total air outlet that rock gas stores collection lattice 1, store collection lattice 1 output compressed natural gas by this total air outlet rock gas, this compressed natural gas is 20 MPas, needs just can use through collecting 2 step-downs of lattice air feed decompressor.
Also be provided with a barometer 15 on the gas circuit before rock gas stores collection lattice 1 total air outlet, the air pressure intensity of the compressed natural gas of this barometer 15 monitoring rock gas storage collection lattice 1 output in real time.
As shown in Figure 2, collection lattice air feed decompressor 2 comprises heating equipment 21, with the regulator 22 that is connected by pipeline with heating equipment 21.This heating equipment 21 is connected by pipeline with the suction port of collection lattice air feed decompressor 2.Heating equipment 21 adopts EX QJL-940 type gas heater, this heater is the electrically heated mode of water-bath type, Capacity is less, at 3～5KW capacity, this heater has temperature, liquid level working state Presentation Function, overtemperature cuts off reset function automatically, specified incoming pressure 20MPa, the maximum 300NM of rated flow
3/ H.By this heating equipment 21 compressed natural gas under the normal temperature state is heated to 45 ℃, this temperature is calculated by the relation between gas pressure intensity difference and the temperature difference.Heating equipment 21 is provided with a thermometer T, monitors the temperature of heating equipment 21 internal compression rock gases in real time.The air outlet of heating equipment 21 connects regulator 22 by pipeline; between heating equipment 21 and regulator 22, also be provided with a manually-operated gate 23; when the device proper functioning; this manually-operated gate 23 keeps normally open; when device breaks down; but the gas circuit between manual-lock heating equipment 21 and the regulator 22, each component of protection regulator 22, and avoid leaking gas.
Below specify the operation workflow of the collection lattice air feed decompressor of a kind of compressed natural gas supply station of the utility model:
Step 1 is compressed to compressed natural gas 20 MPas in the compressed natural gas grown place, and the natural gas charging after will compressing advances in each steel cylinder 11 that rock gas stores collection lattice 1.
Some rock gases are stored 1 stable being fixed on the transport vehicle of collection lattice, by transport vehicle rock gas is stored collection lattice 1 and be transported to the area that each gas distributing system does not have distribution, offer less medium-sized and small enterprises of rock gas consumption or small-sized resident and assemble ground.
After rock gas stored collection lattice 1 and be transported to the local user, needs according to this user, judge the gas mode of unloading of the compressed natural gas that rock gas storage collection lattice 1 need be emitted, if the user adopts single steel cylinder 11 to unload the mode of gas separately, promptly the compressed natural gas in each steel cylinder 11 is unloaded gas respectively and give the user, then jump to step 1.1.This mode of unloading gas separately is applicable to the less user's request of consumption of the rock gas of use.
If the mode of unloading gas is concentrated in the compressed natural gas employing that the user need use several steel cylinders 11 or several rock gases to store in the collection lattice 1, then jump to step 2.Should concentrate the mode of unloading gas to be applicable to the user's request of the large usage quantity of using rock gas.
Step 1.1 is carried out pressure regulation to the rock gas of each steel cylinder 11 respectively, and the rock gas after the pressure regulation is unloaded the natural gas line of gas to external user.
The amount of the compressed natural gas that step 1.1.1 draws off as required, the quantity of the definite steel cylinder 11 that need open.
Step 1.1.2 gives the decompressor 12 that the patent rock gas is installed on the cylinder valve 14 of the steel cylinder 11 that needs to unload gas separately, and the air outlet of this decompressor 12 is connected with user's gas distributing system by flexible pipe.
According to steel cylinder 11 quantity determined, open corresponding steel cylinder 11 emit compressed natural gas then by the cylinder valve 14 of each steel cylinder 11 of performing fighting out respectively for step 1.1.3.By cylinder valve 14 compressed natural gass in the steel cylinder 11 are transferred to each steel cylinder 11 in addition in the decompressor 12 of the special use of dress.
Step 1.1.4 is depressurized to by 20 MPas by decompressor 12 compressed natural gas that single steel cylinder 11 internal memory reserves are less relatively and meets 0.3 MPa that rock gas uses standard.
The rock gas of step 1.1.5 decompressor 12 step-downs that other adorns through each connects by metallic hose and local user's natural gas line, and natural gas transport is used to the user.
Step 2 is opened the cylinder valve 14 that rock gas stores a plurality of or whole steel cylinders 11 on the collection lattice 1, with the compressed natural gas in the steel cylinder 11, directly transfers to total air outlet that rock gas stores collection lattice 1 by cylinder valve 14.
Is connected with gas circuit between the collection lattice air feed decompressor 2 by total air outlet, single rock gas is stored compressed natural gas that collection lattice 1 or a plurality of rock gas store collection lattice 1 storage volume be delivered to and collect lattice air feed decompressor 2.
21 pairs of compressed natural gass of step 3 heating equipment heat.
Step 3.1 compressed natural gas transfers to heating equipment 21 by the suction port of collection lattice air feed decompressor 2, is heated by 21 pairs of compressed natural gass of heating equipment, and compressed natural gas is heated to 45 ℃ by normal temperature.
Step 3.2 is arranged on the thermometer T on the heating equipment 21 simultaneously, monitors the temperature of heating equipment 21 inside through the compressed natural gas of heating in real time.
Step 3.3 heating equipment 21 judges whether the temperature of the compressed natural gas of its inner process heating reaches desired 45 ℃ of regulation, if then will be delivered to regulator 22 through heating the compressed natural gas that reaches 45 ℃, and jump to step 4; If not, then jump to step 3.1, continue the heating compressed natural gas.
22 pairs of compressed natural gass of step 4 regulator carry out the adjustment of classification air pressure.
Step 4.1 compressed natural gas at first transfers to the first pressure regulation assembly 221.221 pairs of compressed natural gass of the first pressure regulation assembly carry out the one-level pressure regulation, and compressed natural gas is depressurized to 0.8 MPa by 20 MPas.
Step 4.3 judges whether through the rock gas air pressure after the pressure regulation be 0.8 MPa, if, be 0.8 MPa through the rock gas air pressure after the pressure regulation, be in the scope of normal requirement, then the manually-operated gate behind the first pressure regulation assembly 221 24 keeps normally open, and jumps to step 4.4; If not; cross low or too high with respect to 0.8 MPa through the rock gas air pressure after the pressure regulation; then the manually-operated gate 24 of the original maintenance normally open behind the first pressure regulation assembly 221 is closed; to protect the second pressure regulation assembly 222 of follow-up connection; and the first pressure regulation assembly 221 carried out inspection and maintenance; carry out pressure regulation again after maintenance is finished, and jump to step 4.1.
Step 4.4 is through 221 pressure regulation of the first pressure regulation assembly and reach the compressed natural gas that regulation requires, and transfers to the second pressure regulation assembly 222 by manually-operated gate 24 and the pipeline of often opening.
222 pairs of compressed natural gass of the step 4.5 second pressure regulation assembly carry out the secondary pressure regulation, and compressed natural gas is depressurized to 0.3 MPa by 0.8 MPa.
Step 4.6 is arranged on the pressure gauge 27 real-time air pressure that detect through the rock gas of the second pressure regulation assembly, 222 step-downs behind the second pressure regulation assembly, 222 outlet ports.
Step 4.7 judges whether the air pressure through the rock gas of the second pressure regulation assembly, 222 pressure regulation is 0.3 MPa, if, air pressure through the rock gas of the second pressure regulation assembly, 222 pressure regulation is 0.3 MPa, be in the scope of normal requirement, then the manually-operated gate behind the second pressure regulation assembly, 222 air outlets 25 is kept normally open, and jump to step 5.If not, air pressure through the rock gas of the second pressure regulation assembly, 222 pressure regulation is too high or too low with respect to 0.3 MPa, then the manually-operated gate 25 that the maintenance behind the second pressure regulation assembly, 222 air outlets is often opened is closed, guarantee that the user's uses gas safety, and the second pressure regulation assembly 222 carried out inspection and maintenance, carry out pressure regulation again after maintenance is finished, and jump to step 4.5.
Step 5 transfers to user pipe through the rock gas of the first pressure regulation assembly 221 and 222 step-downs of the second pressure regulation assembly in the regulator 22 by pipeline, and user's life and industrial gas is provided.
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 all will be conspicuous.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (6)
1. the collection lattice air feed decompressor of a compressed natural gas supply station is characterized in that, this device comprises rock gas and stores collection lattice (1), and stores the collection lattice air feed decompressor (2) that collection lattice (1) are connected by pipeline with described rock gas;
Described collection lattice air feed decompressor (2) comprises:
Heating equipment (21); This heating equipment (21) pipeline connects the suction port of described collection lattice air feed decompressor (2), and this suction port connects described rock gas and stores collection lattice (1); And, the regulator (22) that is connected by pipeline with described heating equipment (21); This regulator (22) pipeline connects the air outlet of described collection lattice air feed decompressor (2); This air outlet connects external user's natural gas line.
2. the collection lattice air feed decompressor of compressed natural gas supply station as claimed in claim 1 is characterized in that, also is provided with thermometer (T) on the described heating equipment (21).
3. the collection lattice air feed decompressor of compressed natural gas supply station as claimed in claim 1 is characterized in that, described regulator (22) comprises the first pressure regulation assembly (221) and the second pressure regulation assembly (222) that is connected in series successively; Be provided with manually-operated gate (24) and pressure gauge (26) behind the air outlet of the described first pressure regulation assembly (221) successively; Be provided with manually-operated gate (25) and pressure gauge (27) successively after the giving vent to anger of the described second pressure regulation assembly (222).
4. the collection lattice air feed decompressor of compressed natural gas supply station as claimed in claim 1 is characterized in that, described rock gas stores collection lattice (1) and comprises several steel cylinders (11); Described steel cylinder (11) adopts horizontal or vertical setting; The bottle mouth position of described steel cylinder (11) also is provided with cylinder valve (14); Described cylinder valve (14) is provided with decompressor (12).
5. the collection lattice air feed decompressor of compressed natural gas supply station as claimed in claim 4 is characterized in that, the outer collection screen work (13) that is provided with of described steel cylinder (11); Described collection screen work (13) adopts the channel-section steel of some no seam welding to make.
6. the collection lattice air feed decompressor of compressed natural gas supply station as claimed in claim 4 is characterized in that, the pipeline that described rock gas stores collection lattice (1) is provided with several sniffers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200112494U CN201944552U (en) | 2011-01-14 | 2011-01-14 | Set-lattice gas-supply pressure relief device of compressed natural gas supply station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200112494U CN201944552U (en) | 2011-01-14 | 2011-01-14 | Set-lattice gas-supply pressure relief device of compressed natural gas supply station |
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| CN201944552U true CN201944552U (en) | 2011-08-24 |
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|---|---|---|---|
| CN2011200112494U Expired - Lifetime CN201944552U (en) | 2011-01-14 | 2011-01-14 | Set-lattice gas-supply pressure relief device of compressed natural gas supply station |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135233A (en) * | 2011-01-14 | 2011-07-27 | 上海万事红燃气技术发展有限公司 | Bundle gas supply decompression device for compression natural gas supply station and pressure regulating and gas supplying method thereof |
| CN104806889A (en) * | 2015-04-22 | 2015-07-29 | 中国石油大学(北京) | Monitoring method and monitoring device for pipeline transmission loss of gas long-distance transmission pipeline |
-
2011
- 2011-01-14 CN CN2011200112494U patent/CN201944552U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135233A (en) * | 2011-01-14 | 2011-07-27 | 上海万事红燃气技术发展有限公司 | Bundle gas supply decompression device for compression natural gas supply station and pressure regulating and gas supplying method thereof |
| CN104806889A (en) * | 2015-04-22 | 2015-07-29 | 中国石油大学(北京) | Monitoring method and monitoring device for pipeline transmission loss of gas long-distance transmission pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |
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| CX01 | Expiry of patent term |