CN204922500U - Liquefied natural gas gasification measurement regulator - Google Patents
Liquefied natural gas gasification measurement regulator Download PDFInfo
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- CN204922500U CN204922500U CN201520521565.4U CN201520521565U CN204922500U CN 204922500 U CN204922500 U CN 204922500U CN 201520521565 U CN201520521565 U CN 201520521565U CN 204922500 U CN204922500 U CN 204922500U
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Abstract
The utility model discloses a liquefied natural gas gasification measurement regulator, including storage tank sledge and gasification measurement pressure regulating sledge, the storage tank sledge includes storage tank, booster, the economic valve of the upper limit, the economic valve of lower limit and air entrainment gun platform, gasification measurement pressure regulating sledge is taken into account and is added smelly equipment including empty temperature formula vaporizer, relief pressure valve, flow. Through setting up economic valve on the storage tank sledge, when storage tank pressure is less than the default of the economic valve of lower limit, can through the booster realize the storage tank from the pressure boost, the atmospheric pressure in the storage tank be greater than the economic valve of the upper limit the default, when being less than the critical threshold values of the predetermined relief valve of storage tank, the preferential storage tank gaseous phase natural gas that uses being avoided direct and emptys causing the waste, in addition, design into storage tank sledge and gasification measurement pressure regulating sledge through integrating skid -mounted, the device transport to use on -the -spot back through the hose headtotail can, have that the transportation is convenient, economic nature is strong, advantages such as wide are used to the region, be particularly useful for natural gas gas supply system from far -off regions.
Description
Technical field
The utility model belongs to the equipment in natural gas supply, is specifically related to a kind of liquefied natural gas gasifying metering regulator.
Background technique
Along with the reinforcement of social environment consciousness, clean energy resource is able to continuous promotion and application, and LNG Liquefied natural gas (LNG) is more and more subject to people with its higher calorific value and oligosaprobic feature and payes attention to.And at present city gas is many is produced by pipeline distributing system supply resident living, business, industrial enterprise, but production in remote districts, living due to by reasons such as pipes laying, also there is certain difficulty in the large-scale application of LNG Liquefied natural gas.
Summary of the invention
The purpose of this utility model is exactly for above-mentioned defect, provides a kind of liquefied natural gas gasifying metering regulator being applicable to remote districts.
For achieving the above object, liquefied natural gas gasifying metering regulator designed by the utility model, comprise storage tank sledge and gasification metering pressure regulation sledge, described storage tank sledge and described gasification are measured by gas phase flexible pipe and liquid phase soft pipe connection between pressure regulation sledge, and described storage tank sledge comprises storage tank, pressurized machine, the economic valve of the upper limit being connected to described pressurized machine output terminal, the economic valve of lower limit being connected to described pressurized machine input end and the aerating gun platform be connected with described storage tank; The output terminal of described pressurized machine is connected with described storage tank by the 3rd pipeline, the economic valve of the described upper limit is communicated with described storage tank by the first pipeline, the 3rd pipeline, described first pipeline is provided with the first stop valve, the economic valve of described lower limit is communicated with described storage tank by second pipe, pressurized machine, the 3rd pipeline, described second pipe is provided with the second stop valve.
Described gasification metering pressure regulation sledge comprises air-heating type gasifier and adds smelly equipment, and air-heating type gasifier output terminal and described adding between smelly equipment are provided with reduction valve and flowmeter successively.
6th pipeline of described storage tank is connected with the input end of described gas phase flexible pipe, and the output terminal of described gas phase flexible pipe is connected with the input pipeline of described air-heating type gasifier by the 7th pipeline, and described 6th pipeline is provided with the 7th stop valve; 8th pipeline of described storage tank is connected with the input end of described liquid phase flexible pipe, and the output terminal of described liquid phase flexible pipe is connected with the input pipeline of described air-heating type gasifier by the 9th pipeline, and described 8th pipeline is provided with the 8th stop valve.
Further, described 3rd pipeline is communicated with described second pipe by the 4th pipeline, described storage tank, the 3rd pipeline, the 4th pipeline and second pipe form a close access, and are respectively arranged with the 3rd stop valve and the 4th stop valve on the 3rd pipeline and second pipe of close access; Described aerating gun platform is by the 5th pipeline and described 4th pipeline communication, and described 4th pipeline is provided with the 5th stop valve and the 6th stop valve in the position, both sides up and down of described 5th pipeline.
Further, described 6th pipeline is connected by the blow-down pipe of safety valve with described storage tank sledge.
Further, the 7th stop valve output terminal on described 6th pipeline is connected with the blow-down pipe of described storage tank sledge by the 9th stop valve, safety valve successively.
Further, described blow-down pipe is connected with the described exhaust stack measuring pressure regulation sledge that gasifies by diffusing flexible pipe.
Further, described gasification metering pressure regulation sledge comprises water bath type gasifier, and the input end of described water bath type gasifier is connected by the output terminal of the first ball valve with described air-heating type gasifier, and the output terminal of described water bath type gasifier is connected with described reduction valve.
Further, described air-heating type gasifier at least comprises two air-heating type gasifiers in parallel, and the input end of each air-heating type gasifier is provided with the tenth stop valve, and the output terminal of each air-heating type gasifier is provided with the second ball valve.
Further, described flow counts Roots type flowmeter, and the input end of described Roots type flowmeter is provided with filter.
Further, described reduction valve is two.
Compared with prior art, the utility model has the following advantages:
Storage tank sledge and gasification metering pressure regulation sledge is designed to by integrated sledge dress, connected by hose system after device transports use scene to, usage requirement can be reached, advantages such as having convenient transportation, compact structure, construction period is short, Economy is strong, region application is wide, is particularly useful for the natural gas supply system of remote districts;
In addition, by arranging economic valve on storage tank sledge, when pressure of storage tank is less than the predefined value of the economic valve of lower limit, can by pressurized machine realize storage tank from supercharging, air pressure in storage tank be greater than the economic valve of the upper limit predefined value, when being less than the critical threshold values of safety valve that storage tank presets, preferential use storage tank gas phase rock gas, avoids direct emptying to cause waste.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model liquefied natural gas gasifying metering regulator;
Fig. 2 is the internal structure schematic diagram of Fig. 1;
Fig. 3 is the process flow diagram of Fig. 1.
In figure, each part numbers is as follows: storage tank 1, pressurized machine 2, the economic valve 3 of the upper limit, the economic valve 4 of lower limit, 3rd stop valve 5, second stop valve 6, first stop valve 7, second pipe 8, first pipeline 9, 3rd pipeline 10, 6th pipeline 11, 7th stop valve 12, 9th stop valve 13, 8th pipeline 14, 4th stop valve 15, 8th stop valve 16, 6th stop valve 17, diffuse flexible pipe 18, gas phase flexible pipe 19, liquid phase flexible pipe 20, blow-down pipe 21, exhaust stack 22, second ball valve 23, tenth stop valve 24, air-heating type gasifier 25, water bath type gasifier 26, first ball valve 27, reduction valve 28, filter 29, flowmeter 30, add smelly equipment 31, 5th stop valve 32, 4th pipeline 33, 5th pipeline 34, 7th pipeline 35, 9th pipeline 36, aerating gun platform 37, safety valve 38, 3rd ball valve 39, storage tank sledge 40, first pneumatic valve 41, second pneumatic valve 42, gasification metering pressure regulation sledge 50.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Liquefied natural gas gasifying metering regulator as shown in Figure 1, comprise storage tank sledge 40 and gasification metering pressure regulation sledge 50, storage tank sledge 40 is measured between pressure regulation sledge 50 with gasification and is communicated with liquid phase flexible pipe 20 by gas phase flexible pipe 19.Storage tank sledge 40 comprises storage tank 1, pressurized machine 2, the economic valve of the upper limit 3 being connected to pressurized machine 2 output terminal, the economic valve 4 of lower limit being connected to pressurized machine 2 input end and the aerating gun platform 37 be connected with storage tank 1, storage tank 1 and pressurized machine 2 are fixed together by angle steel, and storage tank 1 is the storage facilities of LNG Liquefied natural gas.Gasification metering pressure regulation sledge 50 comprises air-heating type gasifier 25 and adds smelly equipment 31, air-heating type gasifier 25 output terminal and add smelly arrange 31 between be provided with reduction valve 28, filter 29 and flowmeter 30 successively.
The output terminal of pressurized machine 2 is connected with storage tank 1 by the 3rd pipeline 10, the economic valve 3 of the upper limit is communicated with storage tank 1 by the first pipeline 9, the 3rd pipeline 10, and the first pipeline 9 is provided with the first stop valve 7, the economic valve 4 of lower limit is communicated with storage tank 1 by second pipe 8, pressurized machine 2, the 3rd pipeline 10, and second pipe 8 is provided with the second stop valve 6; 3rd pipeline 10 is communicated with second pipe 8 by the 4th pipeline 33, storage tank 1, the 3rd pipeline 10, the 4th pipeline 33 and second pipe 8 form a close access, and are respectively arranged with the 3rd stop valve 5 and the 4th stop valve 15 on the 3rd pipeline 10 and second pipe 8 of close access; Aerating gun platform 37 is communicated with the 4th pipeline 33 by the 5th pipeline 34, and the 4th pipeline 33 is provided with the 5th stop valve 32 and the 6th stop valve 17 in the position, both sides up and down of the 5th pipeline 34.6th pipeline 11 of storage tank 1 is connected with the input end of gas phase flexible pipe 10, the output terminal of gas phase flexible pipe 10 is connected with the input pipeline of air-heating type gasifier 25 by the 7th pipeline 35,6th pipeline 11 is provided with the 7th stop valve 12,6th pipeline 11 is connected with the blow-down pipe 21 of storage tank sledge 40 by safety valve 38, or the 7th stop valve 12 output terminal on the 6th pipeline 11 is connected with the blow-down pipe 21 of storage tank sledge 40 by the 9th stop valve 13, safety valve 38 successively, blow-down pipe 21 is by diffusing flexible pipe 18 and the exhaust stack 22 measuring pressure regulation sledge 50 that gasifies is connected; 8th pipeline 14 of storage tank 1 is connected with the input end of liquid phase flexible pipe 20, and the output terminal of liquid phase flexible pipe 20 is connected with the input pipeline of air-heating type gasifier 25 by the 9th pipeline 36, the 8th pipeline 14 is provided with the 8th stop valve 16.
Namely six paths are defined by stop valve and pipeline.
First path: aerating gun platform 37-the 5th pipeline 34-the 4th pipeline 33-the 3rd pipeline 10 and second pipe 8-storage tank 1, realize the feed liquor up and down to storage tank 1.
Second path: the 8th pipeline 14-liquid phase flexible pipe 20-gasifies and measures pressure regulation sledge 50, realizes the direct utilization of LNG
3rd path: second pipe 8-lower limit economic valve 4-pressurized machine 2-the 3rd pipeline 10, realizes the supercharging to storage tank 1
4th path: the 3rd pipeline 10-upper limit economic valve 3-first pipeline 9-storage tank 1-the 8th pipeline 14-liquid phase flexible pipe 20-gasifies and measures pressure regulation sledge 50, realizes automatically realizing storage tank 1 gas phase.
5th path: the 6th pipeline 11-gas phase flexible pipe 19-gasifies and measures pressure regulation sledge 50.
6th path: the 6th pipeline 11-safety valve 38 (automatic evacuation) or the 9th stop valve 13 (manual emptying)-blow-down pipe 21, realize automatic or manual emptying.
Liquefied natural gas gasifying metering regulator of the present utility model in actual use; air-heating type gasifier 25 needs to shut down defrost in use for some time; therefore; the present embodiment comprises two air-heating type gasifiers 25 in parallel; the input end of each air-heating type gasifier 25 is provided with the tenth stop valve 24; the output terminal of each air-heating type gasifier 25 is provided with the second ball valve 23; two air-heating type gasifiers 25 switch use by the tenth stop valve 24 and the second ball valve 23, extend the operating time of this device.
In addition, when after LNG Liquefied natural gas is by air temperature type gasification 25 gasification, temperature is not enough to meet consumers' demand, therefore, need to connect a water bath type gasifier 26 at the end of air-heating type gasifier 25, namely the input end of water bath type gasifier 26 is connected with the output terminal of air-heating type gasifier 25 by the first ball valve 27, and the output terminal of water bath type gasifier 26 is connected with reduction valve 28.When using water bath type gasifier 26, open the first ball valve 27 and the 3rd ball valve 39, by regulating the temperature of the water bath type gasifier 26 of air-heating type gasifier 25 end, carry out heating to the rock gas after air-heating type gasifier 25 gasifies to make it to meet consumers' demand, add the region applicability of the utility model liquefied natural gas gasifying metering regulator.
Reduction valve 28 is decompressed to the pressure needed for user to the rock gas after gasification, in order to reach effect of easing stress, therefore, using two decompressor series connection to realize multi-step pressure reduction, improving the reliability of reduction valve; Flowmeter 30 completes the function of measuring of this system, but due to flowmeter employing 30 in the present embodiment are Roots type flowmeters 30, and Roots type flowmeter 30 pairs of impurity susceptibilitys are higher, therefore, the input end of Roots type flowmeter 30 is provided with filter 29, what this filter 29 adopted is y-type filter 29, and post-decompression rock gas needs to be filtered by y-type filter 29 pairs of rock gases in advance; Adding smelly equipment 31 by being mixed into a kind of tetrahydrothiophene with smelly durian taste in rock gas after gasification, to find in advance when natural gas line is revealed, improve user security.
Introduce the using process of the utility model liquefied natural gas gasifying metering regulator below in detail, under conventional state, in storage tank sledge, the 7th stop valve 12, first stop valve 7, the 3rd stop valve 5, the 4th stop valve 15, the 8th stop valve 16 are in open mode, and other stop valves are in closed condition.
1, when the air pressure in storage tank 1 be less than the economic valve of the upper limit 3 predefined value, be greater than the predefined value of lower limit economic valve 4 time, open pneumatic valve 42, rock gas in storage tank 1 is transported to gasification metering pressure regulation sledge 50 by the 8th pipeline 14, liquid phase flexible pipe 20, undertaken gasifying by gasification metering pressure regulation sledge, reduce pressure, filter, measure, then flow to user.
2, when the air pressure in storage tank 1 is less than the predefined value of the economic valve 4 of lower limit, open out pneumatic valve 42, second stop valve 6, rock gas in storage tank 1 is transported to pressurized machine 2 by the economic valve 4 of lower limit and carries out supercharging, rock gas after supercharging is got back in storage tank 1 by the 3rd pipeline 10, rock gas in storage tank 1 is transported to gasification metering pressure regulation sledge 50 by the 8th pipeline 14, liquid phase flexible pipe 20 again, undertaken gasifying by gasification metering pressure regulation sledge, reduce pressure, filter, measure, then flow to user.
3, when the air pressure in storage tank 1 be greater than the economic valve 3 of the upper limit predefined value, be less than that storage tank 1 presets simultaneously utilize the threshold value of gas-phase space time, open out pneumatic valve 42, gas phase natural gas via the 3rd pipeline 10 in storage tank 1, the economic valve 3 of the upper limit, the 8th pipeline 14, liquid phase flexible pipe 20 are transported to gasification metering pressure regulation sledge 50, undertaken heating by gasification metering pressure regulation sledge, reduce pressure, filter, measure, then flow to user, realize the function of preferential storage tank gas-phase space automatically.
4, when the air pressure in storage tank 1 be greater than that storage tank presets utilize the threshold value of gas-phase space, be less than storage tank preset security valve threshold limit value time, rock gas in storage tank 1 is transported to gasification metering pressure regulation sledge 20 by the 6th pipeline 11, gas phase flexible pipe 19, undertaken heating by gasification metering pressure regulation sledge, reduce pressure, filter, measure, then flow to user.
5, when the air pressure in storage tank 1 is greater than storage tank preset security valve threshold limit value, automatically dispersed by safety valve 38, or manually diffuse by opening the 9th stop valve 13.Gasification metering pressure regulation sledge 50 end needs the gas diffused to guide to exhaust stack 22 by branch road, is diffusing through flame trap through diffusing flexible pipe 18.
6, when the rock gas in storage tank 1 needs inflation, air filling gun on the aerating gun platform 37 access slot car of the 5th pipeline 34 end, open pneumatic valve 41, the 5th stop valve 32, the 6th stop valve 17, aerating is carried out to storage tank 1 by the 3rd pipeline 10 and second pipe about 8 two ends simultaneously.
By arranging economic valve on storage tank sledge 40, when storage tank 1 pressure is less than the predefined value of the economic valve 4 of lower limit, can by pressurized machine 2 realize storage tank 1 from supercharging, air pressure in storage tank 1 be greater than the economic valve of the upper limit 3 predefined value, when being less than the critical threshold values of safety valve that storage tank 1 presets, preferential use storage tank 1 gas phase rock gas, avoids direct emptying to cause waste.
Liquefied natural gas gasifying metering regulator of the present utility model, storage tank sledge and gasification metering pressure regulation sledge is designed to by integrated sledge dress, connected by hose system after device transports use scene to, usage requirement can be reached, advantages such as having convenient transportation, compact structure, construction period is short, Economy is strong, region application is wide, is particularly useful for the natural gas supply system of remote districts.
Claims (9)
1. a liquefied natural gas gasifying metering regulator, comprise storage tank sledge (40) and gasification metering pressure regulation sledge (50), described storage tank sledge (40) with described gasify to measure between pressure regulation sledge (50) be communicated with liquid phase flexible pipe (20) by gas phase flexible pipe (19), it is characterized in that: described storage tank sledge (40) comprises storage tank (1), pressurized machine (2), be connected to the economic valve of the upper limit (3) of described pressurized machine (1) output terminal, be connected to the economic valve of lower limit (4) of described pressurized machine (2) input end, and the aerating gun platform (37) to be connected with described storage tank (1), the output terminal of described pressurized machine (2) is connected with described storage tank (1) by the 3rd pipeline (10), the economic valve of the described upper limit (3) is communicated with described storage tank (1) by the first pipeline (9), the 3rd pipeline (10), described first pipeline (9) is provided with the first stop valve (7), the economic valve of described lower limit (4) is communicated with described storage tank (1) by second pipe (8), pressurized machine (2), the 3rd pipeline (10), described second pipe (8) is provided with the second stop valve (6),
Described gasification metering pressure regulation sledge (50) comprises air-heating type gasifier (25) and adds smelly equipment (31), and air-heating type gasifier (25) output terminal and described adding between smelly equipment (31) are provided with reduction valve (28) and flowmeter (30) successively;
6th pipeline (11) of described storage tank (1) is connected with the input end of described gas phase flexible pipe (19), the output terminal of described gas phase flexible pipe (19) is connected with the input pipeline of described air-heating type gasifier (25) by the 7th pipeline (35), and described 6th pipeline (11) is provided with the 7th stop valve (12); 8th pipeline (14) of described storage tank (1) is connected with the input end of described liquid phase flexible pipe (20), the output terminal of described liquid phase flexible pipe (20) is connected with the input pipeline of described air-heating type gasifier (25) by the 9th pipeline (36), and described 8th pipeline (14) is provided with the 8th stop valve (16).
2. liquefied natural gas gasifying metering regulator according to claim 1, it is characterized in that: described 3rd pipeline (10) is communicated with described second pipe (8) by the 4th pipeline (33), described storage tank (1), the 3rd pipeline (10), the 4th pipeline (33) and second pipe (8) form a close access, and are respectively arranged with the 3rd stop valve (5) and the 4th stop valve (15) on the 3rd pipeline (10) and second pipe (8) of close access; Described aerating gun platform (37) is communicated with described 4th pipeline (33) by the 5th pipeline (34), and described 4th pipeline (33) is provided with the 5th stop valve (32) and the 6th stop valve (17) in the position, both sides up and down of described 5th pipeline (34).
3. liquefied natural gas gasifying metering regulator according to claim 1, is characterized in that: described 6th pipeline (11) is connected by the blow-down pipe (21) of safety valve (38) with described storage tank sledge (40).
4. liquefied natural gas gasifying metering regulator according to claim 1, is characterized in that: the 7th stop valve (12) output terminal on described 6th pipeline (11) is connected with the blow-down pipe (21) of described storage tank sledge (40) by the 9th stop valve (13), safety valve (38) successively.
5. the liquefied natural gas gasifying metering regulator according to claim 3 or 4, is characterized in that: described blow-down pipe (21) is connected with the described exhaust stack (22) measuring pressure regulation sledge (50) that gasifies by diffusing flexible pipe (18).
6. the liquefied natural gas gasifying metering regulator according to claim 1 or 2 or 3 or 4, it is characterized in that: described gasification metering pressure regulation sledge (50) comprises water bath type gasifier (26), the input end of described water bath type gasifier (26) is connected with the output terminal of described air-heating type gasifier (25) by the first ball valve (27), and the output terminal of described water bath type gasifier (26) is connected with described reduction valve (28).
7. the liquefied natural gas gasifying metering regulator according to claim 1 or 2 or 3 or 4, it is characterized in that: described air-heating type gasifier (25) at least comprises two air-heating type gasifiers (25) in parallel, the input end of each air-heating type gasifier (25) is provided with the tenth stop valve (24), and the output terminal of each air-heating type gasifier (25) is provided with the second ball valve (23).
8. the liquefied natural gas gasifying metering regulator according to claim 1 or 2 or 3 or 4, it is characterized in that: described flowmeter (30) is Roots type flowmeter, the input end of described Roots type flowmeter is provided with filter (29).
9. the liquefied natural gas gasifying metering regulator according to claim 1 or 2 or 3 or 4, is characterized in that: described reduction valve (28) is two.
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| CN201520521565.4U CN204922500U (en) | 2015-07-17 | 2015-07-17 | Liquefied natural gas gasification measurement regulator |
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| CN201520521565.4U CN204922500U (en) | 2015-07-17 | 2015-07-17 | Liquefied natural gas gasification measurement regulator |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107327702A (en) * | 2017-08-07 | 2017-11-07 | 苏州新锐低温设备有限公司 | A kind of Large LNG gasification double-channel voltage-regulating is integrally prized |
| CN107906362A (en) * | 2017-05-15 | 2018-04-13 | 阜阳国祯燃气有限公司 | A kind of LNG gasification system |
| CN107965665A (en) * | 2017-11-09 | 2018-04-27 | 大连理工大学 | One kind utilizes pressure-actuated liquefied natural gas gasifying heating system |
| CN108253294A (en) * | 2017-12-29 | 2018-07-06 | 上海新奥新能源技术有限公司 | A kind of liquefied natural gas supplying system |
| CN108506722A (en) * | 2018-04-25 | 2018-09-07 | 天津良华新能源科技有限公司 | A kind of LNG gasification station |
| CN108716615A (en) * | 2018-06-14 | 2018-10-30 | 蚌埠艾普压缩机制造有限公司 | A kind of gasification installation for LNG |
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2015
- 2015-07-17 CN CN201520521565.4U patent/CN204922500U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906362A (en) * | 2017-05-15 | 2018-04-13 | 阜阳国祯燃气有限公司 | A kind of LNG gasification system |
| CN107327702A (en) * | 2017-08-07 | 2017-11-07 | 苏州新锐低温设备有限公司 | A kind of Large LNG gasification double-channel voltage-regulating is integrally prized |
| CN107965665A (en) * | 2017-11-09 | 2018-04-27 | 大连理工大学 | One kind utilizes pressure-actuated liquefied natural gas gasifying heating system |
| CN107965665B (en) * | 2017-11-09 | 2020-01-17 | 大连理工大学 | Liquefied natural gas gasification heating system driven by pressure |
| CN108253294A (en) * | 2017-12-29 | 2018-07-06 | 上海新奥新能源技术有限公司 | A kind of liquefied natural gas supplying system |
| CN108506722A (en) * | 2018-04-25 | 2018-09-07 | 天津良华新能源科技有限公司 | A kind of LNG gasification station |
| CN108506722B (en) * | 2018-04-25 | 2023-10-10 | 天津良华新能源科技股份有限公司 | LNG gasification station |
| CN108716615A (en) * | 2018-06-14 | 2018-10-30 | 蚌埠艾普压缩机制造有限公司 | A kind of gasification installation for LNG |
| CN108716615B (en) * | 2018-06-14 | 2020-05-22 | 蚌埠艾普压缩机制造有限公司 | A gasification equipment for LNG |
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