CN109631335A - Oil gas field intelligent heating system - Google Patents

Oil gas field intelligent heating system Download PDF

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Publication number
CN109631335A
CN109631335A CN201910054999.0A CN201910054999A CN109631335A CN 109631335 A CN109631335 A CN 109631335A CN 201910054999 A CN201910054999 A CN 201910054999A CN 109631335 A CN109631335 A CN 109631335A
Authority
CN
China
Prior art keywords
water
condenser pipe
combustion chamber
oil gas
heating system
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
CN201910054999.0A
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Chinese (zh)
Inventor
唐诗奇
赵林
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.)
Beijing Wound Expo Letter Development In Science And Technology Co Ltd
Original Assignee
Beijing Wound Expo Letter Development In Science And 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 Beijing Wound Expo Letter Development In Science And Technology Co Ltd filed Critical Beijing Wound Expo Letter Development In Science And Technology Co Ltd
Priority to CN201910054999.0A priority Critical patent/CN109631335A/en
Publication of CN109631335A publication Critical patent/CN109631335A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H8/00Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B36/00Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
    • E21B36/02Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using burners
    • E21B36/025Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones using burners the burners being above ground or outside the bore hole
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/24Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
    • E21B43/243Combustion in situ
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/0005Details for water heaters
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/18Arrangement or mounting of grates or heating means
    • F24H9/1809Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/20Arrangement or mounting of control or safety devices
    • F24H9/2007Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2035Arrangement or mounting of control or safety devices for water heaters using fluid fuel
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Abstract

The embodiment of the invention discloses a kind of oil gas field intelligent heating systems, the inlet pipeline including having water pump, and inlet pipeline connects condensation hot water boiler, and the water outlet of condensation hot water boiler connects outlet pipeline;The top inlet end of condensation hot water boiler is equipped with blower and solenoid valve, and the inlet end of blower connects fuel gas conduit, and blower, solenoid valve and water pump are electrically connected electric cabinet;Condensation hot water boiler includes furnace body, combustion chamber and condenser pipe are equipped in furnace body, burner is equipped in combustion chamber, combustion chamber is separately connected inlet end and condenser pipe, combustion chamber and the outside of condenser pipe are equipped with hot hydroecium, hot hydroecium is not connected to combustion chamber and condenser pipe, and furnace body is equipped with the water inlet and water outlet of connection hot hydroecium.Oil gas field intelligent heating system disclosed by the embodiments of the present invention is high with the thermal efficiency, energy-saving a little for the thermal efficiency of traditional water jacket furnace 60%-80%, this technology can reach 98% or more, can save 40% or more gas quantity.

Description

Oil gas field intelligent heating system
Technical field
The present embodiments relate to oil gas field technical field of heating, and in particular to a kind of oil gas field intelligent heating system.
Background technique
The heating boiler that Domestic Oil And Gas Fields use at present is common coal-fired or gas burner (furnace)+heat exchanging body (water tank) Simple structure form, it has the disadvantage that
1. combustion system is rough, cause the thermal efficiency low (typically less than 70%), energy-output ratio is big;
2. discharging flue gas without effective recovery system, environmental pollution is serious;
The phenomenon that 3. power utilization is low, generally existing " low load with strong power ";
4. structure is simple, once breakdown maintenance, it is necessary to whole equipment is cut off, work on the spot efficiency is influenced;
5. heating method is direct, medium water may cause when being lost and directly heat crude oil in coil pipe, execute-in-place exist compared with More security risks.
Summary of the invention
For this purpose, the embodiment of the present invention provides a kind of oil gas field intelligent heating system, it is low to solve the thermal efficiency in the prior art The problems such as lower energy consumption is high, smoke pollution environment is serious, power utilization is insufficient, maintenance influences work on the spot efficiency, and It can achieve execute-in-place safe ready.
To achieve the goals above, embodiments of the present invention provide the following technical solutions:
A kind of oil gas field intelligent heating system, the inlet pipeline including having water pump, the inlet pipeline connect condensing The water outlet of hot-water boiler, the condensation hot water boiler connects outlet pipeline;The top air inlet of the condensation hot water boiler End is equipped with blower and solenoid valve, and the inlet end of the blower connects fuel gas conduit, and the blower, solenoid valve and water pump are electrically connected electricity Control case;The condensation hot water boiler includes furnace body, and combustion chamber and condenser pipe are equipped in the furnace body, is equipped in the combustion chamber Burner, the combustion chamber are separately connected inlet end and condenser pipe, and the outside of the combustion chamber and condenser pipe is equipped with hot hydroecium, described Hot hydroecium is not connected to combustion chamber and condenser pipe, and the furnace body is equipped with the water inlet and water outlet of connection hot hydroecium.
It further include rack in yet another embodiment of the present invention, the left and right sides of the rack is respectively hot-water boiler Frame and electric cabinet are equipped with longitudinal baffle between the water bath grate and electric cabinet.
In yet another embodiment of the present invention, the bottom of the electric cabinet is equipped with water pump, the electric cabinet and water pump it Between be equipped with lateral partitions.
In yet another embodiment of the present invention, cylindrical body burner that the burner is made of column burning web and back cover.
In yet another embodiment of the present invention, the inlet end of the condenser pipe is equipped with Venturi tube structure.
In yet another embodiment of the present invention, equally distributed cooling fin is equipped in the condenser pipe.
In yet another embodiment of the present invention, the liquid outlet of the condenser pipe connects liquid collecting room, the bottom of the liquid collecting room Portion connects condensate liquid liquid outlet.
In yet another embodiment of the present invention, general supply circuit, the PLC being connected in parallel each other are equipped in the electric cabinet Controller, water pump control circuit, water heater control circuit.
Embodiment according to the present invention has the advantages that
1, oil gas field intelligent heating system disclosed by the embodiments of the present invention have the thermal efficiency it is high, it is energy-saving a little, phase For the thermal efficiency of traditional water jacket furnace 60%-80%, this technology can reach 98% or more, can save gas quantity 40% with On.
2, oil gas field intelligent heating system environmental pollution disclosed by the embodiments of the present invention is small, conventional boiler, water jacket furnace cigarette Containing the deleterious acidics gas such as a large amount of CO and NOX in gas discharge, and the heat transfer technology that our new product uses, endothermic effect It is good, burning room temperature (in 1400 DEG C) is effectively controlled, NOX is reduced and generates, there are also the closed of pre-mixing gas combustion collocation burning web Indoor positive pressure combustion system ensure that combustion gas full combustion (not wasting substantially), reduce the generation of CO.
3, easy to maintenance when the oil gas field intelligent heating system failure disclosed by the embodiments of the present invention, and produced on-site is influenced It is small, it can be changed quickly after failure;And burner is in such a way that more furnaces are in parallel, it, can specific aim when a wherein failure Maintenance, without cutting off whole equipment.
4, oil gas field intelligent heating system disclosed by the embodiments of the present invention is adjusted flexible and convenient using power interval, according to existing Field demand increase and decrease condensing furnace number can be completed.
5, oil gas field intelligent heating system intelligent degree disclosed by the embodiments of the present invention is high, complete equipment hommization program It is abundant: can automatically adjust watt level, setup parameter it is simple to operation, beyond set temperature can automatic switching, can be standby each other Furnace voluntarily switches, can voluntarily analyzing failure cause, alert program improve it is highly-safe.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.
Fig. 1 is a kind of overall structure figure for oil gas field intelligent heating system that one embodiment of the invention provides;
Fig. 2 is the internal structure chart of condensation hot water boiler in Fig. 1;
Fig. 3 is the internal circuit schematic diagram of electric cabinet in Fig. 1;
Fig. 4 is the circuit expanded view of Fig. 3.
In figure:
1, inlet pipeline;2, condensation hot water boiler;3, outlet pipeline;4, water pump;5, electric cabinet;6, furnace body;7, air inlet End;8, combustion chamber;9, burning web;10, back cover;11, condenser pipe;12, Venturi tube structure;13, hot hydroecium;14, liquid collecting room;15, Condensate liquid liquid outlet;16, water inlet;17, water outlet;18, general supply circuit;19, PLC controller;20, water pump control circuit; 21, water heater control circuit.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
The term of cited such as "upper", "lower", "left", "right", " centre ", is merely convenient to describe in this specification Be illustrated, rather than to limit the scope of the invention, relativeness is altered or modified, and is changing technology without essence It inside holds, when being also considered as the enforceable scope of the present invention.
As shown in Figure 1, 2, a kind of oil gas field intelligent heating system, the inlet pipeline 1 including having water pump 4, the water inlet Pipeline 1 connects condensation hot water boiler 2, and the water outlet 17 of the condensation hot water boiler 2 connects outlet pipeline 3.Condensing heat Homogeneous solution-type reactor 2 is connected by inlet pipeline 1 with outlet pipeline 3 with traditional water jacket furnace, forms water circulation heat exchange system, wherein water pump 4 provide power for entire water circulation.
The condensation hot water boiler 2, inlet pipeline 1, outlet pipeline 3, water pump 4 are respectively mounted on the rack, the rack The left and right sides be respectively water bath grate and electric cabinet 5, longitudinal baffle is equipped between the water bath grate and electric cabinet 5. The bottom of the electric cabinet 5 is equipped with water pump 4, and lateral partitions are equipped between the electric cabinet 5 and water pump 4.
The condensation hot water boiler 2 includes furnace body 6, and the top inlet end 7 of the furnace body 6 is equipped with blower and solenoid valve, The inlet end 7 of the blower connects fuel gas conduit, and the blower, solenoid valve and water pump 4 are electrically connected electric cabinet 5, and electric cabinet 5 controls The opening and closing of blower and solenoid valve, to enter in condensation hot water boiler 2 after realizing combustion gas and air pre-mixing.
The condensation hot water boiler 2 includes furnace body 6, is equipped with combustion chamber 8 and condenser pipe 11, the combustion in the furnace body 6 It burns and is equipped with burner in room 8, the cylindrical body burner that the burner is made of column burning web 9 and back cover 10, this cylindrical body burner The problem of can preventing bombing bore.The combustion chamber 8 is separately connected inlet end 7 and condenser pipe 11, the combustion chamber 8 and condenser pipe 11 Outside is equipped with hot hydroecium 13, and the hot hydroecium 13 is not connected to combustion chamber 8 and condenser pipe 11, and the furnace body 6 is equipped with connection hot water The water inlet 16 and water outlet 17 of room 13.
The bottom of combustion chamber 8 connects condenser pipe 11, and the bottom end liquid outlet of the condenser pipe 11 is condensate liquid outlet end, described Connection is closed between combustion chamber 8 and condenser pipe 11.The quantity of condenser pipe 11 is more, and heat exchange efficiency is higher, condenses in the present embodiment Pipe 11 is evenly distributed on the joint face of combustion chamber 8, such as lotus rhizome structure, heat exchange efficiency highest in the case that realization space is equal. The liquid outlet of multiple condenser pipes 11 is all connected with liquid collecting room 14, and liquid collecting room 14 is not connected to hot hydroecium 13, and liquid collecting room 14 is for collecting The bottom of the condensate liquid of multiple condenser pipes 11, the liquid collecting room 14 connects condensate liquid liquid outlet 15, for condensate liquid to be discharged.
In order to improve the flue gas heat recovery efficiency of condenser pipe 11, equally distributed cooling fin is equipped in condenser pipe 11, in fact Now to the high efficiente callback for the cigarette heat that gives up after burning, after the hot water efficient absorption heat in furnace body 6, flue-gas temperature declines rapidly, cigarette Since rapid drop in temperature condenses out condensed water, the heat of the process release of Water vapor condensation Cheng Shui is right again for vapor in gas Hot water reheating in furnace body 6.
The inlet end 7 of the condenser pipe 11 is equipped with Venturi tube structure 12, for flue gas after burning in the overcurrent by reducing When section, there is the phenomenon that flow velocity increase in flue gas, and flow velocity is inversely proportional with flow section, can produce near swiftly flowing flue gas Raw low pressure, to generate suction-operated, the flow of flue gas after can preventing burning is slow and mixes with burning gases and bombing bore occurs Problem.
When specifically used, blower and solenoid valve premix air and combustible gas positive pressure, are then blown into combustion chamber 8 by burner Interior carry out isobaric combustion, the high-temperature flue gas discharged in combustion chamber 8 enter condenser pipe 11, by condenser pipe 11 and the side of combustion chamber 8 Wall passes to the hot water in hot hydroecium 13, after the hot water efficient absorption in hot hydroecium 13, declines flue-gas temperature rapidly, in flue gas Vapor condensed water is condensed into due to rapid drop in temperature, it is secondary be hot water heating.
As shown in figure 3, being equipped with the general supply circuit 18 being connected in parallel each other, PLC controller 19, water in the electric cabinet 5 Pump control circuit 20, water heater control circuit 21.Water heater control circuit 21 is connected in parallel according to the setting of the quantity of water heater Water heater controls sub-circuit, and water heater controls sub-circuit and water heater corresponds, and by the control opening and closing of relay mould group, often The problem of being equipped with water heater in a water heater control sub-circuit and be spaced apart switch, preventing water heater control sub-circuit overload damage. It is equipped with 3 condensation hot water boilers 2, i.e. furnace 1, furnace 2, furnace 3 in the present embodiment, is connected in parallel as shown in figure 4, needing to be arranged 3 Water heater control sub-circuit, every water heater control sub-circuit individually controls, to realize the operation of the multiple furnaces of intelligent control.
Master switch module includes the 24V Switching Power Supply being connected in series each other, the input of power switch SA2,380V general supply, total Power supply is spaced apart QF3, general supply lamp HL2, general supply be spaced apart QF3 can the disconnection when general supply circuit 18 overloads, play protection circuit Effect, general supply lamp HL2 is used to indicate 18 operating condition of general supply circuit.
Water pump control circuit 20 includes the 4 running indicator HL1 branch of water pump being connected in parallel and 4 switching branches of water pump, the water It pumps and is equipped with the 4 manual switch SB of water pump being connected in parallel, water pump 4 automatic switch SA1, electrothermal relay FR1 in 4 switching branches, wherein Water pump 4 is automatically switched 4 manual switch SB of SA1 Water pump connected, and the 4 running indicator HL1 branch of water pump connects with 4 switching branches of water pump Contact relay mould group KM1, thus realize water pump 4 manual opening-closing and automatically controlled opening and closing.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore, These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.

Claims (8)

1. a kind of oil gas field intelligent heating system, it is characterised in that: the inlet pipeline including having water pump, the inlet pipeline connect Condensation hot water boiler is connect, the water outlet of the condensation hot water boiler connects outlet pipeline;
The top inlet end of the condensation hot water boiler is equipped with blower and solenoid valve, and the inlet end of the blower connects combustion gas Pipe, the blower, solenoid valve and water pump are electrically connected electric cabinet;
The condensation hot water boiler includes furnace body, and combustion chamber and condenser pipe are equipped in the furnace body, is equipped in the combustion chamber Burner, the combustion chamber are separately connected inlet end and condenser pipe, and the outside of the combustion chamber and condenser pipe is equipped with hot hydroecium, described Hot hydroecium is not connected to combustion chamber and condenser pipe, and the furnace body is equipped with the water inlet and water outlet of connection hot hydroecium.
2. oil gas field intelligent heating system according to claim 1, it is characterised in that: it further include rack, the rack The left and right sides is respectively water bath grate and electric cabinet, and longitudinal baffle is equipped between the water bath grate and electric cabinet.
3. oil gas field intelligent heating system according to claim 2, it is characterised in that: the bottom of the electric cabinet is equipped with water Pump is equipped with lateral partitions between the electric cabinet and water pump.
4. oil gas field intelligent heating system according to claim 1, it is characterised in that: the burner by column burning web with The cylindrical body burner of back cover composition.
5. oil gas field intelligent heating system according to claim 1, it is characterised in that: the inlet end of the condenser pipe is equipped with Venturi tube structure.
6. oil gas field intelligent heating system according to claim 1, it is characterised in that: be equipped in the condenser pipe and uniformly divide The cooling fin of cloth.
7. oil gas field intelligent heating system according to claim 1, it is characterised in that: the liquid outlet of the condenser pipe connects The bottom of liquid collecting room, the liquid collecting room connects condensate liquid liquid outlet.
8. oil gas field intelligent heating system according to claim 1, it is characterised in that: be equipped with each other simultaneously in the electric cabinet Join general supply circuit, the PLC controller, water pump control circuit, water heater control circuit of connection.
CN201910054999.0A 2019-01-21 2019-01-21 Oil gas field intelligent heating system Pending CN109631335A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910054999.0A CN109631335A (en) 2019-01-21 2019-01-21 Oil gas field intelligent heating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910054999.0A CN109631335A (en) 2019-01-21 2019-01-21 Oil gas field intelligent heating system

Publications (1)

Publication Number Publication Date
CN109631335A true CN109631335A (en) 2019-04-16

Family

ID=66062310

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910054999.0A Pending CN109631335A (en) 2019-01-21 2019-01-21 Oil gas field intelligent heating system

Country Status (1)

Country Link
CN (1) CN109631335A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB712186A (en) * 1951-05-17 1954-07-21 North Western Gas Board Improvements relating to two fuel boilers
CN102635847A (en) * 2012-04-26 2012-08-15 浙江中烟工业有限责任公司 Water feeding system for multiple condensing boilers
US20130099014A1 (en) * 2011-10-21 2013-04-25 Cleaver-Brooks, Inc. System and Method of Controlling Condensing and Non-Condensing Boiler Firing Rates
CN207716659U (en) * 2017-10-24 2018-08-10 扬州斯大锅炉有限公司 Vertical condensation hot-water boiler
CN209386557U (en) * 2019-01-21 2019-09-13 北京创世博鸿科技发展有限公司 Oil gas field intelligent heating system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB712186A (en) * 1951-05-17 1954-07-21 North Western Gas Board Improvements relating to two fuel boilers
US20130099014A1 (en) * 2011-10-21 2013-04-25 Cleaver-Brooks, Inc. System and Method of Controlling Condensing and Non-Condensing Boiler Firing Rates
CN102635847A (en) * 2012-04-26 2012-08-15 浙江中烟工业有限责任公司 Water feeding system for multiple condensing boilers
CN207716659U (en) * 2017-10-24 2018-08-10 扬州斯大锅炉有限公司 Vertical condensation hot-water boiler
CN209386557U (en) * 2019-01-21 2019-09-13 北京创世博鸿科技发展有限公司 Oil gas field intelligent heating system

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