CN107120633A - A kind of combustion and steam producer and its steam generating system - Google Patents

A kind of combustion and steam producer and its steam generating system Download PDF

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Publication number
CN107120633A
CN107120633A CN201710527322.5A CN201710527322A CN107120633A CN 107120633 A CN107120633 A CN 107120633A CN 201710527322 A CN201710527322 A CN 201710527322A CN 107120633 A CN107120633 A CN 107120633A
Authority
CN
China
Prior art keywords
combustion
steam
tubular
heat exchange
exhaust pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710527322.5A
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Chinese (zh)
Inventor
赵颂
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yantai Zhongde Environmental Protection Equipment Technology Co ltd
Original Assignee
Yantai Zhongde Environmental Protection Equipment Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yantai Zhongde Environmental Protection Equipment Technology Co ltd filed Critical Yantai Zhongde Environmental Protection Equipment Technology Co ltd
Priority to CN201710527322.5A priority Critical patent/CN107120633A/en
Publication of CN107120633A publication Critical patent/CN107120633A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • F22B31/08Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B31/00Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00Component parts or details of steam boilers
    • F22B37/02Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/24Supporting, suspending, or setting arrangements, e.g. heat shielding
    • F22B37/242Supporting, suspending, or setting arrangements, e.g. heat shielding for bottom supported water-tube steam generators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means

Abstract

The present invention relates to steam generator, more particularly to a kind of combustion and steam producer and its steam generating system.The combustion and steam producer includes tank box and set of heat exchange tubes, it is characterized in that, in the tank box, bottom is provided with tubular burner hearth, top is provided with tubular smoke exhaust pipe, front end of the front end of the tubular burner hearth and tubular smoke exhaust pipe respectively with the tank box is fixedly connected, back-end closure, and the both sides of the tubular burner hearth and tubular smoke exhaust pipe are corresponding respectively to be evenly equipped with heat exchange interface tube and lower heat exchange interface tube;The set of heat exchange tubes includes symmetrical bending heat exchanger tube, and the tubular burner hearth is by bending heat exchanger tube with being connected inside tubular smoke exhaust pipe.System, including grate, air mixture feedway and gas burner occur for the combustion and steam.Beneficial effect is:The present invention has compact conformation, and heat exchange efficiency is high, and the advantages of occupying little space, the system efficiency of heating surface is high, and steam yield is high.

Description

A kind of combustion and steam producer and its steam generating system
Technical field
The present invention relates to steam generator, more particularly to a kind of combustion and steam producer and its steam generating system.
Background technology
Combustion gas is used more widely as clean energy resource is increasingly extensive, and gas-cooker is most common one kind.As society is right The demand lifting of environmental protection and the concern to health, slowly demand is reduced for some old-fashioned kitchen range such as micro-wave oven, oven etc., instead of And come is demand to healthy cooking food.Therefore various steamers are using increasingly popularizing, and current steamed tool is general It is that steam is produced by electric-heating water, this power is small, is arranged on space waste in steamed tool and greatly, is also unfavorable for energy-conservation;It is existing in addition The single kitchen steam raising plant power having is small, relative big, less efficient, the unfavorable environmental protection that takes up space, if two with The kitchen range of steam are then difficult to meet the need for upper.Used as independent steam generator in hotel, dining room, even family cooking There is good development prospect.
The content of the invention
There is provided a kind of gas steam generator of compact conformation for above-mentioned the deficiencies in the prior art by the present invention.
The technical scheme that the present invention solves above-mentioned technical problem is as follows:A kind of combustion and steam producer, including tank box And set of heat exchange tubes, it is characterised in that in the tank box, bottom is provided with tubular burner hearth, and top is discharged fume provided with tubular Pipe, the front end of the front end of the tubular burner hearth and tubular smoke exhaust pipe respectively with the tank box is fixedly connected, rear end Closing, the both sides of the tubular burner hearth and tubular smoke exhaust pipe are corresponding respectively to be evenly equipped with heat exchange interface tube and lower heat exchanger tube Interface;Fore-and-aft direction of the set of heat exchange tubes along the tank box is provided with multiple rows of, and the set of heat exchange tubes includes symmetrical Heat exchanger tube is bent, the bending heat exchanger tube includes lower end import and upper end outlet, the lower end import and tubular burner hearth Lower heat exchanger tube sealing joint connection, upper end outlet is connected with the upper heat exchanger tube sealing joint of the tubular smoke exhaust pipe, the tubular Burner hearth by bending heat exchanger tube and be connected inside tubular smoke exhaust pipe, be additionally provided with the tank box steam output pipe and Gas burner is provided with filler, the tubular burner hearth.
The beneficial effects of the invention are as follows:The present invention has compact conformation, and heat exchange efficiency is high, and the advantages of occupying little space is adopted With tubular burner hearth by the structure for bending heat exchanger tube with being connected inside tubular smoke exhaust pipe, set in tubular burner hearth Gas burner, enables flame uniformly to be upwardly extended in every group of bending heat exchanger tube, and the efficiency of heating surface is high, and steam yield is high.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, the bending heat exchanger tube is flat thin-wall construction, in reciprocal between the lower end import and upper end outlet Revolving structure.
It is to be easy in the tank box form uniform gas-liquid heat exchange using the beneficial effect of above-mentioned further scheme Interface, overall heat-transfer surface area is big, and heat exchange efficiency is high.
Occur system, including grate, air mixture feedway and moisturizing the invention also discloses a kind of combustion and steam Case, it is characterised in that also including combustion and steam producer as described above, the combustion and steam producer is located at the grate On, connected between the gas burner and the air mixture feedway by gas pipeline, the water outlet of the water supply tank Mouth is connected with the filler of the tank box.
The beneficial effects of the invention are as follows:Combustion gas mixing case and Steam generating furnace are unified into system, can more preferably adjust combustion gas and The proportioning of air, makes burning more abundant.The system can concentrate generation steam by steam pipework supply it is multiple use gas kitchen tools, relatively For each stove sets steam generator respectively, space is saved, is operated safer.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, in addition to secondary heat exchange system, the secondary heat exchange system includes exhaust blower and heat-exchanging water tank, described to change Boiler includes cold water inlet, hot water outlet, smoke inlet and exhanst gas outlet, the outlet of the exhaust blower and the heat-exchanging water tank Smoke inlet connection, entrance and the tubular smoke exhaust pipe outlet.
Beneficial effect using above-mentioned further scheme is that, due to combustion and steam producer compact conformation, flue gas is in tubular Still there is certain temperature the outlet of smoke exhaust pipe, therefore makes full use of heat energy by secondary heat exchange, while can be to addition water tank Water provides preheating.
Further, the support, which is provided with, can make the guide rail that the combustion and steam producer slides back and forth.
Beneficial effect using above-mentioned further scheme is, due to typically by the system be put into kitchen by wall, in order to Maintenance is convenient, when needing maintenance Steam generating furnace, removes the flange of gas pipeline, Steam generating furnace is forgotten about it into outside maintenance more It is convenient, it is front and rear operable.
Further, the air mixture feedway includes air distribution blower fan, controller, magnetic valve and fuel gas inlet.
Beneficial effect using above-mentioned further scheme is, by blower fan air distribution make air mixture obtain bigger pressure and Rational air stoichiometry, burns more abundant.
Further, the gas burner, including flange connecting plate, end-plate, rectangular base plate and combustion gas guard, the combustion Gas guard is fixed on the both sides of the rectangular base plate, and Formation cross-section is in semi arch between the rectangular base plate and combustion gas guard Air mixture chamber, the flange connecting plate and end-plate are respectively arranged on the front end and rear end of the air mixture chamber, the flange Connecting plate is provided with air inlet.
Beneficial effect using above-mentioned further scheme is, is in the combustion stove of straight barrel type structure, the present invention for furnace chamber Gas burner, can by air mixture chamber provide than more uniform supply energy.Compared to using general gas burner For, be conducive to saving the energy, it is ensured that be adapted to stove and use and increase the service life.
Further, the combustion gas guard be metallic fiber surface guard, shown metallic fiber surface guard include skeleton and It is laid in the metal web on the skeleton.
Beneficial effect using above-mentioned further scheme is that metallic fiber surface guard has good combustion efficiency, ring Protect energy-conservation.
Further, in addition to located at the radome fairing of the air mixture intracavitary, the radome fairing is arc-shaped grooves, described whole The radius of stream cover is less than the radius of the combustion gas guard, is evenly equipped with through hole or groove on the radome fairing, the radome fairing with Equal air cavity is formed between combustion gas guard, the air inlet is communicated with the equal air cavity;The radome fairing is after anterior diameter is more than The cone-shaped hood of portion's diameter.
Beneficial effect using above-mentioned further scheme is to make the entrance circular arc of air mixture evenly by radome fairing Combustion gas guard, promotes fully burning, improves the efficiency of heating surface.
Further, the radome fairing is the cone-shaped hood that anterior diameter is more than rearward diameter.
Beneficial effect using above-mentioned further scheme is, because air mixture has certain pressure, described entering Concentration after air mixture chamber close to rear end is more than anterior concentration, is easily formed and burnt partially, therefore can be balanced using taper fairing Front and rear pressure, is conducive to making more uniform temperature in combustion chamber by the combustion gas guard.
Further, kuppe is also set with the radome fairing, the kuppe is circular arc flute profile, the air inlet and institute The cavity stated between radome fairing and kuppe is communicated.
Beneficial effect using above-mentioned further scheme is to pass through the circular arc ring cavity room between kuppe and radome fairing, combustion Gas reaches the combustion gas guard surface tolerance evenly.
Brief description of the drawings
Fig. 1 is Steam generating furnace contour structures schematic diagram of the invention;
Fig. 2 is main structure diagram after boxboard before removal water tank in Fig. 1;
Fig. 3 for Fig. 2 A-A to structural representation;
Fig. 4 is the horizontal cross section structure diagram of Steam generating furnace of the invention;
For the combustion and steam of the present invention system structure diagram occurs for Fig. 5;
Fig. 6 is fuel gas burner structure schematic diagram of the invention;
Fig. 7 is Fig. 6 transverse sectional view;
Fig. 8 is Fig. 6 longitudinal sectional view;
Fig. 9 is dome structure schematic diagram of the invention.
In Fig. 1 to Fig. 9, the component names representated by each label are as follows:
100th, Steam generating furnace:101st, tank box;102nd, tubular smoke exhaust pipe;103rd, steam output pipe;104th, bending is changed Heat pipe;105th, filler;106th, tubular burner hearth;107th, guide rail;108th, upper heat exchange interface tube;109th, lower heat exchange interface tube;
200th, secondary heat exchange system:201st, heat-exchanging water tank;202nd, exhaust blower;203rd, water supply tank;
300th, air mixture feedway:301st, air distribution blower fan;302nd, controller;303rd, gas pipeline;
400th, gas burner;401st, flange connecting plate;402nd, rectangular base plate;403rd, combustion gas guard;404th, radome fairing; 405th, end-plate;406th, kuppe;407th, air inlet;408th, electronic ignition pin jack;409th, groove;410th, fiery groove is gone out;
01st, air mixture chamber;02nd, equal air cavity.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and It is non-to be used to limit the scope of the present invention.
As shown in Fig. 1 to Fig. 4, a kind of combustion and steam producer 100, including tank box 101 and set of heat exchange tubes, described In tank box 101, bottom is provided with tubular burner hearth 106, and top is provided with tubular smoke exhaust pipe 102, the tubular burner hearth 106 and front end of the front end respectively with the tank box 101 of tubular smoke exhaust pipe 102 be fixedly connected, back-end closure, the cylinder The both sides of shape burner hearth 106 and tubular smoke exhaust pipe 102 respectively it is corresponding be evenly equipped with heat exchange interface tube 108 and lower heat exchanger tube connect Mouth 109;Fore-and-aft direction of the set of heat exchange tubes along the tank box is provided with multiple rows of, and the set of heat exchange tubes includes symmetrical Heat exchanger tube 104 is bent, the bending heat exchanger tube 104 includes lower end import and upper end outlet, and the lower end import is burnt with tubular The lower heat exchange interface tube 109 of burner hearth 106 is tightly connected, the upper heat exchange interface tube 108 of upper end outlet and the tubular smoke exhaust pipe 102 It is tightly connected, the tubular burner hearth 106 is by bending heat exchanger tube 104 with being connected inside tubular smoke exhaust pipe 102, the water Steam output pipe 103 and filler 105 are additionally provided with box body 101.
Gas burner is provided with the tubular burner hearth 106.
The bending heat exchanger tube 104 is flat thin-wall construction, is in reciprocating rotating between the lower end import and upper end outlet Structure.
Water position status in tank box 101 is illustrated in Fig. 4.
As shown in Fig. 5 to Fig. 9, system occurs for a kind of combustion and steam, including grate, air mixture feedway 300 and Water supply tank 203, in addition to combustion and steam producer 100 as described above, the combustion and steam producer 100 are located at the grate On, connected between the gas burner 400 and the air mixture feedway 300 by gas pipeline 303, the moisturizing The delivery port of case 203 is connected with the filler of the tank box 101.
Also include secondary heat exchange system 200, the secondary heat exchange system includes exhaust blower 202, heat-exchanging water tank 201, described Heat-exchanging water tank 201 include cold water inlet, hot water outlet, smoke inlet and exhanst gas outlet, the outlet of the exhaust blower 203 with it is described The smoke inlet connection of heat-exchanging water tank 201, entrance and the outlet of tubular smoke exhaust pipe 102.
In specific connection, the cold water inlet of direct heat transfer water tank adds running water, the hot water outlet connection of heat-exchanging water tank 201 Water supply tank 203, that is, realize the recycling of waste heat.
The support, which is provided with, can make the guide rail 107 that the combustion and steam producer slides back and forth.
The air mixture feedway 300 includes air distribution blower fan 302, controller 303, magnetic valve and fuel gas inlet.
The gas burner 400, including flange connecting plate 401, end-plate 405, rectangular base plate 402 and combustion gas guard 403, the combustion gas guard 403 is fixed on the both sides of the rectangular base plate 402, in the rectangular base plate 402 and combustion gas guard 403 Between Formation cross-section be in semi arch air mixture chamber 01, the flange connecting plate 401 and end-plate 405 are respectively arranged on described mixed The front end and rear end of gas chamber 01 are closed, the flange connecting plate 401 is provided with air inlet.
The combustion gas guard 403 is metallic fiber surface guard, and shown metallic fiber surface guard includes skeleton and laid Metal web on the skeleton.
Also include the radome fairing 404 located at the air mixture intracavitary, the radome fairing 404 is arc-shaped grooves, described whole The radius of stream cover 404, which is less than on the radius of the combustion gas guard 403, the radome fairing 404, is evenly equipped with through hole or groove 409, Equal air cavity 02 is formed between the radome fairing and combustion gas guard, the air inlet is communicated with the equal air cavity;
The radome fairing 404 is the cone-shaped hood that anterior diameter is more than rearward diameter.
Kuppe 406 is also set with the radome fairing, the kuppe 406 is circular arc flute profile, the air inlet and institute The cavity stated between radome fairing 404 and kuppe 406 is communicated.
The operation principle of the system is as follows:Added in the tank box 101 and treat gasified water, mixing is passed to combustion chamber Combustion gas, lights gas burner, and air mixture is fully burnt in combustion chamber, and flue gas simultaneously enters the bending heat exchanger tube 104, warp Cross the steam generated that exchanges heat with water to use for the various kitchen tools for needing steam from the discharge of steam outlet 103, after heat exchange Remaining cigarette makes full use of thermal source by secondary heat exchange again, and the cold water in heat-exchanging water tank 201 improves temperature by heat exchange, then leads to Water supply tank is crossed to be added in tank box 101, so can be more energy efficient.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.

Claims (10)

1. a kind of combustion and steam producer, including tank box and set of heat exchange tubes, it is characterised in that in the tank box, Bottom is provided with tubular burner hearth, and top is provided with tubular smoke exhaust pipe, the front end of the tubular burner hearth and tubular smoke exhaust pipe The front end with the tank box is fixedly connected respectively, back-end closure, the both sides of the tubular burner hearth and tubular smoke exhaust pipe It is corresponding respectively to be evenly equipped with heat exchange interface tube and lower heat exchange interface tube;Front and back of the set of heat exchange tubes along the tank box To provided with multiple rows of, the set of heat exchange tubes includes symmetrical bending heat exchanger tube, the bending heat exchanger tube include lower end import and Upper end outlet, the lower end import is connected with the lower heat exchanger tube sealing joint of tubular burner hearth, upper end outlet and the tubular Steam output pipe and filler, the tubular are additionally provided with the upper heat exchanger tube sealing joint connection of smoke exhaust pipe, the tank box Gas burner is provided with burner hearth.
2. combustion and steam producer according to claim 1, it is characterised in that the bending heat exchanger tube is flat thin-walled knot Structure, is in reciprocating rotating structure between the lower end import and upper end outlet.
3. system, including grate, air mixture feedway and water supply tank occur for a kind of combustion and steam, it is characterised in that also Including combustion and steam producer as claimed in claim 1 or 2, the combustion and steam producer is described on the grate Connected between gas burner and the air mixture feedway by gas pipeline, the delivery port of the water supply tank with it is described The filler connection of tank box.
4. system occurs for combustion and steam according to claim 3, it is characterised in that described also including secondary heat exchange system Secondary heat exchange system include exhaust blower and heat-exchanging water tank, the heat-exchanging water tank include cold water inlet, hot water outlet, smoke inlet and Exhanst gas outlet, the outlet of the exhaust blower is connected with the smoke inlet of the heat-exchanging water tank, and entrance goes out with the tubular smoke exhaust pipe Mouth connection.
5. system occurs for the combustion and steam according to claim 3 or 4, it is characterised in that the support, which is provided with, can make institute State the guide rail that combustion and steam producer slides back and forth.
6. system occurs for the combustion and steam according to claim 3 or 4, it is characterised in that the air mixture feedway Including air distribution blower fan, controller, magnetic valve and fuel gas inlet.
7. system occurs for the combustion and steam according to claim 3 or 4, it is characterised in that the gas burner, including method Blue connecting plate, end-plate, rectangular base plate and combustion gas guard, the combustion gas guard are fixed on the both sides of the rectangular base plate, in institute State the air mixture chamber that Formation cross-section between rectangular base plate and combustion gas guard is in semi arch, the flange connecting plate and end-plate point Not She Yu the air mixture chamber front end and rear end, the flange connecting plate be provided with air inlet.
8. system occurs for combustion and steam according to claim 7, it is characterised in that the combustion gas guard is metallic fiber table Veil cover, shown metallic fiber surface guard includes skeleton and the metal web being laid on the skeleton.
9. system occurs for combustion and steam according to claim 7, it is characterised in that also including located at the air mixture chamber Interior radome fairing, the radome fairing is arc-shaped grooves, and the radius of the radome fairing is less than the radius of the combustion gas guard, described whole Be evenly equipped with through hole or groove on stream cover, form equal air cavity between the radome fairing and combustion gas guard, the air inlet with it is described Equal air cavity is communicated;The radome fairing is the cone-shaped hood that anterior diameter is more than rearward diameter.
10. system occurs for combustion and steam according to claim 7, it is characterised in that is also set with and leads in the radome fairing Stream cover, the kuppe is circular arc flute profile, and the cavity between the air inlet and the radome fairing and kuppe is communicated.
CN201710527322.5A 2017-06-30 2017-06-30 A kind of combustion and steam producer and its steam generating system Pending CN107120633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710527322.5A CN107120633A (en) 2017-06-30 2017-06-30 A kind of combustion and steam producer and its steam generating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710527322.5A CN107120633A (en) 2017-06-30 2017-06-30 A kind of combustion and steam producer and its steam generating system

Publications (1)

Publication Number Publication Date
CN107120633A true CN107120633A (en) 2017-09-01

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CN201710527322.5A Pending CN107120633A (en) 2017-06-30 2017-06-30 A kind of combustion and steam producer and its steam generating system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108911114A (en) * 2018-07-11 2018-11-30 南通劲凌智能科技有限公司 A kind of sewage aeration pool equipment and its method based on steam condensation heating
CN112933622A (en) * 2021-02-02 2021-06-11 崔秋生 Device and method for heat recovery of oil in internal floating roof storage tank

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103776067A (en) * 2012-10-24 2014-05-07 郭海涛 Infrared liquefied gas furnace and infrared gas furnace end
CN204329010U (en) * 2014-11-13 2015-05-13 河北春风供暖设备有限责任公司 A kind of gas heating stove all-premixing burner
CN205897540U (en) * 2016-07-29 2017-01-18 杭州天霸光电科技有限公司 Gas warm air oil furnace
CN106871093A (en) * 2017-02-07 2017-06-20 烟台众德环保设备科技有限公司 A kind of steam generator for kitchen use
CN207146349U (en) * 2017-06-30 2018-03-27 烟台众德环保设备科技有限公司 A kind of combustion and steam producer and its steam generating system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103776067A (en) * 2012-10-24 2014-05-07 郭海涛 Infrared liquefied gas furnace and infrared gas furnace end
CN204329010U (en) * 2014-11-13 2015-05-13 河北春风供暖设备有限责任公司 A kind of gas heating stove all-premixing burner
CN205897540U (en) * 2016-07-29 2017-01-18 杭州天霸光电科技有限公司 Gas warm air oil furnace
CN106871093A (en) * 2017-02-07 2017-06-20 烟台众德环保设备科技有限公司 A kind of steam generator for kitchen use
CN207146349U (en) * 2017-06-30 2018-03-27 烟台众德环保设备科技有限公司 A kind of combustion and steam producer and its steam generating system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108911114A (en) * 2018-07-11 2018-11-30 南通劲凌智能科技有限公司 A kind of sewage aeration pool equipment and its method based on steam condensation heating
CN112933622A (en) * 2021-02-02 2021-06-11 崔秋生 Device and method for heat recovery of oil in internal floating roof storage tank
CN112933622B (en) * 2021-02-02 2023-01-31 崔秋生 Device and method for heat recovery of oil in internal floating roof storage tank

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Application publication date: 20170901

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