CN104964165A - Small odorizing device applied to skid-mounted LNG gasification device and method - Google Patents
Small odorizing device applied to skid-mounted LNG gasification device and method Download PDFInfo
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- CN104964165A CN104964165A CN201510459932.7A CN201510459932A CN104964165A CN 104964165 A CN104964165 A CN 104964165A CN 201510459932 A CN201510459932 A CN 201510459932A CN 104964165 A CN104964165 A CN 104964165A
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Abstract
The invention relates to a small odorizing device applied to a skid-mounted LNG gasification device and a method. Particularly, an odorizing pipe connector is formed in the top of an odorant storage tank, one end of an odorizing pipe is communicated with the connector through a valve set, the other end of the odorizing pipe is communicated with a gas pipeline through a check valve, the lower portion of the odorant storage tank is wound by electric tracing ribbons, a solenoid valve and the electric tracing ribbons are connected with a controller, and a pressure gauge is arranged at the top of the odorant storage tank. The odorant storage tank is heated by the electric tracing ribbons wound around the lower portion of the storage tank, odorant contained in the odorant storage tank is heated to generate odorant steam, and after being saturated, the odorant steam is added into natural gas in the gas pipeline under the control of the valve set and can work circularly. The device and the method can meet the odorizing requirement of the skid-mounted LNG gasification device, and the odorizing quantity is controlled accurately.
Description
Technical field
The present invention relates to a kind of apparatus for making gas ordorous, particularly relate to a kind of apparatus for making gas ordorous and the method that are applied to skid LNG gasification installation.
Background technique
In samll cities and towns' gas development process, skid LNG (liquefied natural gas----LNG Liquefied natural gas) gasification installation obtains and widelys popularize.The colorless and odorless of rock gas own is raising gas safety, and when there is gas leakage, can cause and discover, remove the dangerous condition in time, relevant specification of country mandatory requirement adds smelly to rock gas.Be at present using plunger pump or differential pressure as power for the device for adding odor of skid LNG gasification installation, to smelly dose of pressurization in liquid container, utilize pressure reduction to be supplemented to gas transmission and distribution pipeline by smelly dose.Plunger pump cost and maintenance expenses higher, power consumption is large and need power supply continuously, from entirety investment, has increased the weight of the economic burden of gas company, has been unfavorable for the marketing of skid LNG gasification installation; It is simple that differential pressure adds smelly equipment, not power consumption power, but odorizing amount is wayward, and often odorizing amount is bigger than normal.
Summary of the invention
The object of this invention is to provide a kind of small-sized device for adding odor being applied to skid LNG gasification installation, its structure is simple, and odorizing amount is accurate, and it is convenient to control, and is beneficial to marketing.
For achieving the above object, the present invention takes following design proposal:
Be applied to a small-sized device for adding odor for skid LNG gasification installation, comprise gas pipeline, smelly dose of storage tank and controller; Described smelly dose of tank top is provided with charging valve and adds smelly interface tube, and add smelly pipe one end and add smelly interface tube by a valve sets and this and be communicated with, the other end is communicated with gas pipeline by safety check; Smelly dose of storage tank bottom is wound around the electric-heating belt be used for smelly dose of heating in storage tank; Have a solenoid valve in described valve sets at least, described solenoid valve and electric-heating belt are connected with controller respectively.
In described small-sized device for adding odor, described valve sets can be made up of high pressure side valve, low voltage side valve and solenoid valve three valve combination, in this valve sets, described solenoid valve is positioned at centre, described high pressure side valve is arranged on solenoid valve and adds between smelly interface tube, and described low voltage side valve is arranged between solenoid valve and safety check; Wherein, high pressure side valve, low voltage side valve are in normally open, and the unlatching of solenoid valve is controlled by described controller.
In described small-sized device for adding odor, also at least there is the one in following feature:
1) the smelly dose of capacity joined in smelly dose of storage tank accounts for 1/3 ~ 1/2 of smelly dose of storage tank total capacity, and its upper limit is no more than 1/2;
2) controller described in is powered by civil power, storage battery or solar energy photovoltaic panel;
3) described storage tank side is provided with level meter, and this level meter adopts magnetic flap level gauge or float type level gauge;
4), in the small-sized device for adding odor described in, described electric-heating belt is connected with controller by heating tape cable.
5), in the small-sized device for adding odor described in, described valve sets is connected with controller by control cables.
6), in the small-sized device for adding odor described in, smelly dose of described storage tank is the cylindrical tank of stainless steel.
7), in the small-sized device for adding odor described in, the described material adding smelly pipe is stainless steel or Common Straight Carbon Steel.
Another object of the present invention is to provide a kind of small-sized stink adding method being applied to skid LNG gasification installation, and it utilizes above-mentioned small-sized device for adding odor, can realize accurately adding smelly, and controls convenient, relatively can reduce the operating cost of gas company.
For achieving the above object, the present invention takes following design proposal:
A kind of stink adding method being applied to skid LNG gasification installation, use above-mentioned small-sized device for adding odor, its method is: utilize the electric-heating belt of smelly dose of storage tank outside winding to described smelly dose of storage tank heat, smelly dose that makes it in-built is produced osmophore steam because of heating, after smelly dose of steam reaches capacity, control to join in the rock gas in gas pipeline by a valve sets.
In described stink adding method, valve sets is connected with a controller respectively with electric-heating belt, in advance force value during smelly dose of vapo(u)rous in the flow of rock gas in gas pipeline and pressure and smelly dose of storage tank is input in controller, by the keying frequency of output control valve door group, the heating-up temperature of electric-heating belt after controller process and the circulation time adding odorant, to smelly dose of steam in smelly dose of storage tank is added through the control of valve sets when pressure reaches in gas pipeline, and loop cycle work.
In described stink adding method, concrete grammar is as follows:
Step one: input force value during smelly dose of vapo(u)rous in the flow of rock gas in gas pipeline and pressure and smelly dose of storage tank in advance in the controller;
Step 2: manual unlocking charging valve, adds in smelly dose of storage tank by smelly dose, observe level meter, and smelly dose adds to 1/3rd of storage tank and after not surpassing 1/2nd, close charging valve;
Step 3: open the safety check adding smelly pipe one end and connect;
Step 4: connect controller power source, heated smelly dose in smelly dose of storage tank by electric-heating belt, produce osmophore saturated vapour, when smelly dose of saturated vapor pressure is to saturation pressure force value, control Open valve group by controller, smelly dose of steam flows into gas pipeline by adding smelly pipe;
Step 5: after smelly dose of inflow gas pipeline continues for some time, get back to step 2, repetitive cycling step 2 is to step 4.
The present invention adds smelly equipment mainly for skid LNG gasification installation.Skid LNG gasification installation is general very little, uses dispersion.General air demand is at 200 cubic meters/about h, and the odorizing amount of needs is 4000mg/h, very little.Chief creating point of the present invention utilizes electrical tracing to heat smelly dose exactly, makes smelly dose to add in rock gas at the pressure of saturation vapour pressure.So can reach control in a small amount to odorizing amount.
Advantage of the present invention is:
1) what the present invention can meet skid LNG gasification installation adds smelly requirement, circulation type continuous operation;
2) adopt electric-heating belt to smelly dose of heating in smelly dose of storage tank, safe and reliable, and the heating-up temperature of electric-heating belt is easy to control, easily realizes being heated the control of smelly dose of saturation vapour pressure;
3) the present invention utilizes valve sets to control odorizing amount, and odorizing amount control is accurate and flexible;
4) the inventive method and device is adopted to add smelly, smelly dose with vaporization form and be that the smelly interface tube that adds offered by top joins in the combustion gas of flowing through adding smelly pipe, both mix, coordinate the accurate control of valve sets, can avoid adding the too high problem generation of smelly some odorizing agent concentration, do not have the drop of not vaporizing to enter, effectively can prevent odorant to deodorant storage tank with the corrosion of external equipment;
5) the present invention is applied to the small-sized device for adding odor Zhi Xu mono-road 220V external power supply (or being equipped with solar energy photovoltaic panel) of skid LNG gasification installation, single unit system project organization is simple, easy to maintenance, significantly can reduce initial cost and the maintenance expenses of gas company, economical and social benefit is remarkable.
Accompanying drawing explanation
Fig. 1 is the small-sized device for adding odor structural representation that the present invention is applied to skid LNG gasification installation.
In figure: 1. gas pipeline; 2. safety check; 3. add smelly pipe; 4. solenoid valve; 401. high pressure side valves; 402. low voltage side valves; 5. controller; 6. smelly dose of storage tank; 7. level meter; 8. electric-heating belt; 9. control cables; 10. charging valve; 11. pressure gauges; 12. heating tape cables.
Below in conjunction with drawings and the specific embodiments, the present invention is described in further details.
Embodiment
Consult shown in Fig. 1, the small-sized device for adding odor that the present invention is applied to skid LNG gasification installation mainly by gas pipeline 1, safety check 2, add smelly pipe 3, valve sets (can be arrange separately a solenoid valve 4; But be also provided with solenoid valve 4, high pressure side valve 401 and low voltage side valve 402 simultaneously), controller 5, smelly dose of storage tank 6, level meter 7, electric-heating belt 8, control cables 9, charging valve 10, pressure gauge 11 and heating tape cable 12 form.
Shown in Figure 1, be provided with level meter 7 in the side of smelly dose of storage tank 6, to facilitate the situation grasping liquid storage in smelly dose of storage tank 6 at any time, the upper limit is no more than 50%, and lower limit is not less than 10%.
Pressure gauge 11 can be provided with, to facilitate the pressure grasping smelly dose of steam in smelly dose of storage tank 6 at any time at smelly dose of storage tank 6 top.
Charging valve 10 is provided with, to facilitate liquid feeding at smelly dose of storage tank 6 top.
Offer interface by smelly dose of storage tank 6 top and add smelly pipe 3, wherein, adding smelly pipe 3 can be that one end valve sets is connected with storage tank, and the other end safety check 2 is connected with gas pipeline.
Valve sets can be made up of high pressure side valve 401, low voltage side valve 402 and solenoid valve 4, wherein: high pressure side valve, low voltage side valve can be ball valve or stop valve, are in normally open during work.Program timing that described solenoid valve 4 can be set by controller is opened and is closed, and it can realize for prior art, does not repeat herein.Close during solenoid valve maintenance.
Be wound around electric-heating belt smelly dose of storage tank 6 bottom, be connected by heating tape cable 12 with controller 5, during work, this electric-heating belt controls the temperature of heating by controller, heats, generate smelly dose of steam to be vaporized to smelly dose in smelly dose of storage tank 6.During for making heating, smelly dose of steam has the space of generation, joining liquid state smelly dose of capacity in smelly dose of storage tank should 1/2 (account for 1/3 ~ 1/2 of smelly dose of storage tank total capacity for good, at least reserves 1/2 upper space of smelly dose of storage tank as saturation vapour pressure storage area) of super smelly dose of storage tank total capacity.
Smelly dose of described storage tank can be the cylindrical tank of stainless steel.
The present invention is by the heating-up temperature T0 of controller setting electric-heating belt 8, by electric-heating belt 8, smelly dose of storage tank 6 is heated, smelly dose of liquid state is heated and is become smelly dose of steam, when the pressure in smelly dose of storage tank reaches smelly dose of default saturated vapor pressure P0 value, controller makes solenoid valve 4 open, and smelly dose of steam flows into gas pipeline 1.Electric-heating belt 8 heating-up temperature T0 can be issued to the value of control based on the flow of rock gas and pressure in the self balancing of saturation vapour pressure P0.
The present invention utilizes the pressure difference of rock gas in smelly dose of steam and pipeline as power, utilizes the keying frequency of solenoid valve 4 to set different smelly agent fluxes, adds smelly precision high, simple to operate, cheap.
The job step that one embodiment of the invention is concrete is as follows:
First connect the power supply of controller 5, input flow and the pressure parameter of rock gas in erecting bed gas pipeline 1 in the controller 5, set out the keying frequency Hz0 of solenoid valve 4, the heating-up temperature T0 of electric-heating belt and smelly dose of circulation time T0 thus;
Step 2: Non-follow control opens charging valve, smelly for liquid state dose is added in smelly dose of storage tank, by observing level meter, smelly dose of dosage (should not surpass 1/2nd after reaching smelly dose of storage tank total capacity 1/3rd, this dosage is quantitative, in each cycle period, adding quantity should be identical), close charging valve;
Step 3: open the safety check added on smelly pipe;
Step 4: connect controller power source, smelly dose in smelly dose of storage tank is heated by electric-heating belt, produce osmophore saturated vapour, to certain value, (this value presets the pressure shown when pressure gauge, be greater than the gaseous-pressure in gas pipeline) time, opens solenoid valve, smelly dose of steam flows into gas pipeline by adding smelly pipe;
Step 5: after smelly dose of inflow gas pipeline continues for some time, get back to step 2, repetitive cycling step 2 is to step 4.
In above-mentioned circulation step, circulation time is T0, and the setting of this T0 value can realize converting according to parameters such as the gas flow in gas pipeline and solenoid valve opening times, does not repeat herein.
Zhi Xu mono-tunnel of the present invention, can be battery-powered for the power supply of controller, comprises other modes such as adopting solar energy photovoltaic panel to power, also comprise mains-supplied mode.
The material adding smelly pipe of the present invention all can be stainless steel, also can be Common Straight Carbon Steel material.
The small-sized device for adding odor that the present invention is applied to skid LNG gasification installation is reusable, what can meet skid LNG gasification installation adds smelly requirement, it can solve present situation samll cities and towns apparatus for making gas ordorous problem costly, odorizing amount controls accurately, structure is simple, cheap, significantly can reduce initial cost and the maintenance expenses of gas company, be beneficial to the marketing of skid LNG gasification installation, economical and social benefit is remarkable.
The various embodiments described above can not to depart under protection scope of the present invention in addition some changes, thus above explanation to comprise and the structure shown in accompanying drawing should be considered as exemplary, and be not used to the protection domain limiting the present patent application patent.
Claims (10)
1. be applied to a small-sized device for adding odor for skid LNG gasification installation, comprise gas pipeline, smelly dose of storage tank and controller; It is characterized in that: described smelly dose of tank top is provided with charging valve and adds smelly interface tube, add smelly pipe one end and add smelly interface tube by a valve sets and this and be communicated with, the other end is communicated with gas pipeline by safety check; Smelly dose of storage tank bottom is wound around the electric-heating belt be used for smelly dose of heating in storage tank; Have a solenoid valve in described valve sets at least, described solenoid valve and electric-heating belt are connected with controller respectively.
2. small-sized device for adding odor according to claim 1, it is characterized in that: described valve sets is made up of high pressure side valve, low voltage side valve and solenoid valve three valve combination, in this valve sets, described solenoid valve is positioned at centre, described high pressure side valve is arranged on solenoid valve and adds between smelly interface tube, and described low voltage side valve is arranged between solenoid valve and safety check; Wherein, high pressure side valve, low voltage side valve are in normally open, and the unlatching of solenoid valve is controlled by described controller.
3. small-sized device for adding odor according to claim 1, is characterized in that the one also at least had in following feature:
1) the smelly dose of capacity joined in smelly dose of storage tank accounts for 1/3 ~ 1/2 of smelly dose of storage tank total capacity, and its upper limit is no more than 1/2;
2) controller described in is powered by civil power, storage battery or solar energy photovoltaic panel;
3) described smelly dose of storage tank side is provided with level meter, and this level meter adopts magnetic flap level gauge or float type level gauge.
4. small-sized device for adding odor according to claim 1, is characterized in that: described electric-heating belt is connected with controller by heating tape cable.
5. small-sized device for adding odor according to claim 1, is characterized in that: described valve sets is connected with controller by control cables.
6. small-sized device for adding odor according to claim 1, is characterized in that: smelly dose of described storage tank is the cylindrical tank of stainless steel.
7. small-sized device for adding odor according to claim 1, the described material adding smelly pipe is stainless steel or Common Straight Carbon Steel.
8. one kind is applied to the stink adding method of skid LNG gasification installation, use as the small-sized device for adding odor in claim 1 to claim 7 as described in any one, it is characterized in that method is as follows: utilize the electric-heating belt of smelly dose of storage tank outside winding to described smelly dose of storage tank heat, smelly dose that makes it in-built is produced osmophore steam because of heating, after smelly dose of steam reaches capacity, control to join in the rock gas in gas pipeline by a valve sets.
9. stink adding method according to claim 8, it is characterized in that: valve sets is connected with a controller respectively with electric-heating belt, in advance force value during smelly dose of vapo(u)rous in the flow of rock gas in gas pipeline and pressure and smelly dose of storage tank is input in controller, by the keying frequency of output control valve door group, the heating-up temperature of electric-heating belt after controller process and the circulation time adding odorant, to smelly dose of steam in smelly dose of storage tank is added through the control of valve sets when pressure reaches in gas pipeline, and loop cycle work.
10. stink adding method according to claim 9, is characterized in that concrete grammar is as follows:
Step one: input force value during smelly dose of vapo(u)rous in the flow of rock gas in gas pipeline and pressure and smelly dose of storage tank in advance in the controller;
Step 2: manual unlocking charging valve, adds in smelly dose of storage tank by smelly dose, observe level meter, and smelly dose adds to 1/3rd of storage tank and after not surpassing 1/2nd, close charging valve;
Step 3: open the safety check adding smelly pipe one end and connect;
Step 4: connect controller power source, heated smelly dose in smelly dose of storage tank by electric-heating belt, produce osmophore saturated vapour, when smelly dose of saturated vapor pressure is to saturation pressure force value, control Open valve group by controller, smelly dose of steam flows into gas pipeline by adding smelly pipe;
Step 5: after smelly dose of inflow gas pipeline continues for some time, get back to step 2, repetitive cycling step 2 is to step 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510459932.7A CN104964165A (en) | 2015-07-30 | 2015-07-30 | Small odorizing device applied to skid-mounted LNG gasification device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510459932.7A CN104964165A (en) | 2015-07-30 | 2015-07-30 | Small odorizing device applied to skid-mounted LNG gasification device and method |
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| CN104964165A true CN104964165A (en) | 2015-10-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178706A (en) * | 2017-07-28 | 2017-09-19 | 沈阳光正工业有限公司 | LNG points supply device for adding odor |
| CN107289322A (en) * | 2017-08-17 | 2017-10-24 | 四川东晨燃气有限公司 | City gas stores charging system with dimethyl ether |
| CN113915531A (en) * | 2021-11-04 | 2022-01-11 | 合肥市久环给排水燃气设备有限公司 | Gas odorization device |
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| JPH11182795A (en) * | 1997-12-24 | 1999-07-06 | Tokyo Gas Co Ltd | Method for reliquefying bog generated in lng tank and device therefor |
| CN102650369A (en) * | 2012-05-25 | 2012-08-29 | 张家港韩中深冷科技有限公司 | Liquefied natural gas filling pry |
| CN204164669U (en) * | 2014-09-16 | 2015-02-18 | 廊坊新奥燃气有限公司 | Intelligent gas adds smelly system |
| CN204879454U (en) * | 2015-07-30 | 2015-12-16 | 北京市煤气热力工程设计院有限公司 | Be applied to sled dress LNG gasification equipment's small -size odorizing device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH11182795A (en) * | 1997-12-24 | 1999-07-06 | Tokyo Gas Co Ltd | Method for reliquefying bog generated in lng tank and device therefor |
| CN102650369A (en) * | 2012-05-25 | 2012-08-29 | 张家港韩中深冷科技有限公司 | Liquefied natural gas filling pry |
| CN204164669U (en) * | 2014-09-16 | 2015-02-18 | 廊坊新奥燃气有限公司 | Intelligent gas adds smelly system |
| CN204879454U (en) * | 2015-07-30 | 2015-12-16 | 北京市煤气热力工程设计院有限公司 | Be applied to sled dress LNG gasification equipment's small -size odorizing device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107178706A (en) * | 2017-07-28 | 2017-09-19 | 沈阳光正工业有限公司 | LNG points supply device for adding odor |
| CN107178706B (en) * | 2017-07-28 | 2022-10-25 | 沈阳光正工业有限公司 | LNG point supply odorizing device |
| CN107289322A (en) * | 2017-08-17 | 2017-10-24 | 四川东晨燃气有限公司 | City gas stores charging system with dimethyl ether |
| CN113915531A (en) * | 2021-11-04 | 2022-01-11 | 合肥市久环给排水燃气设备有限公司 | Gas odorization device |
| CN113915531B (en) * | 2021-11-04 | 2024-01-30 | 合肥市久环给排水燃气设备有限公司 | Gas odorizing device |
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