CN107702340B - Method for supplying hot water and/or steam by double-layer spiral coil heating device - Google Patents
Method for supplying hot water and/or steam by double-layer spiral coil heating device Download PDFInfo
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- CN107702340B CN107702340B CN201710892899.6A CN201710892899A CN107702340B CN 107702340 B CN107702340 B CN 107702340B CN 201710892899 A CN201710892899 A CN 201710892899A CN 107702340 B CN107702340 B CN 107702340B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
- F24H7/04—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
- F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/08—Installation of heat-exchange apparatus or of means in boilers for heating air supplied for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/08—Cooling thereof; Tube walls
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
- F24H9/139—Continuous flow heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
- Devices For Medical Bathing And Washing (AREA)
Abstract
The invention discloses a method for supplying hot water and/or steam by a double-layer spiral coil heating device, which comprises the following steps of (I) heating a furnace body by the heating device to ensure that a high boiling point liquid layer is heated to the temperature close to the boiling point of the high boiling point liquid layer, and forcing the high boiling point liquid to circularly flow in an inner layer spiral coil by a high-temperature oil pump; and (II) inputting water from the water inlet pipe, heating the water in the outer layer spiral coil pipe through the heated outer layer spiral coil pipe and the heated inner layer spiral coil pipe, and controlling the pressure and the outflow speed in the outer layer spiral coil pipe by controlling the input pressure and the speed of the water, the diameters of the outer layer spiral coil pipe and the inner layer spiral coil pipe and arranging a control valve on the water vapor output pipe, so that the water in the outer layer spiral coil pipe is heated and then is output in the form of hot water, steam or the combination of the hot water and the steam. The invention has the advantages of composite heat transfer, and independent supply of hot water and steam, and simultaneous supply of hot water and steam.
Description
Technical Field
The present invention relates to a method of supplying heat from a heating apparatus, and more particularly, to a method of supplying hot water, steam, or a combination thereof.
Background
A boiler is a mechanical device that heats water into hot water or steam using the heat energy of fuel or other energy sources. The hot water or steam generated in the boiler can directly provide heat energy required by industrial production and people life, and can also be converted into mechanical energy through a steam power device, or the mechanical energy is converted into electric energy through a generator. The boiler for supplying hot water is called a hot water boiler, is mainly used for life, and has a small amount of application in industrial production. The boiler for generating steam is called as steam boiler and is mainly used for thermal power stations, ships, locomotives and industrial and mining enterprises.
The water wall is the main radiation evaporation heating surface of the boiler and is generally divided into a tubular water wall and a membrane water wall. The high-capacity high-temperature high-pressure boiler generally adopts a membrane water-cooled wall, and the small-capacity medium-pressure boiler and the small-capacity low-pressure boiler mainly adopt a light pipe water-cooled wall.
The main functions of the water wall are as follows: A. absorbing high-temperature radiation heat in the hearth to generate steam, and cooling the flue gas so as to reduce the temperature of the flue gas in the convection flue to a temperature without slagging; B. the membrane type water-cooled wall has the most thorough protection effect on the furnace wall, so that the furnace wall can be made of heat insulation materials instead of refractory materials, and the furnace wall structure can be lighter and thinner; C. the use of a water cooled wall saves steel over the use of a convection bank in evaporating the same amount of water.
The existing membrane water-cooling wall is formed by sequentially welding a plurality of fin straight pipes along the longitudinal direction (mainly including two modes of welding flat steel on the pipes and splicing and welding rolled ribbed pipes) to form a whole block water-cooling wall heating surface assembly. When each component is installed, the components are sealed by welding, so that the periphery of the hearth is tightly surrounded by a layer of whole water-cooled wall membrane.
Such straight tube longitudinally welded membrane water walls have a number of drawbacks: the unidirectional flow of water vapor in the straight pipe is too smooth, the heat exchange strength is low, and the forced circulation flow is not convenient to realize due to the parallel multiple pipes; the volume is large, the structure is not compact enough, and the boiler can not be well suitable for medium and small boilers; the heat sources such as flame or flue gas and the like are inconvenient to form transverse scouring on the tube wall by the inner wall of the straight tube-shaped hearth, and the heat exchange efficiency is low; the straight tube membrane type fireplace plate is generally suitable for being welded into a cuboid hearth structure, so that right-angle dead corners of radiation and flow of flame and smoke are caused, the heat exchange efficiency is obviously reduced, an additional welding and assembling procedure is required before the hearth is installed, and the installation workload is increased; the straight tube type film fireplace has unsatisfactory plate structure strength, and a hearth can be formed only by arranging a large-scale steel frame support; the straight pipe membrane wall has large deformation amount and large thermal stress when expanding with heat and contracting with cold.
Disclosure of Invention
In view of the defects of the prior art, the inventor of the present invention provides a method for supplying hot water and/or steam to a double-layer spiral coil heating device, so as to solve the technical problems of the prior art.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method of supplying hot water and/or steam to a double-deck spiral coil heating apparatus, the heating apparatus comprising: an oil bin cylinder, a furnace body, a water inlet pipe, a water vapor output pipe and a high-temperature oil pump; the furnace body comprises a hearth; the hearth comprises an outer layer spiral coil, a spiral sealing plate and an inner layer spiral coil penetrating through the outer layer spiral coil, and a crack between each circle of spirals of the outer layer spiral coil is welded by the spiral sealing plate, thereby forming a complete cylindrical membrane wall hearth; the furnace body is arranged in the oil bin cylinder, a jacket space is formed between the oil bin cylinder and the furnace body, a high-boiling-point liquid layer is arranged in the jacket space, an air bin is formed between the high-boiling-point liquid layer and the top of the oil bin cylinder, the top of the oil bin cylinder is provided with a vent hole which enables the air bin to be communicated with the outside, the furnace body is provided with a heating device, the water inlet pipe is connected with one end of the outer-layer spiral coil, the water vapor output pipe is connected with the other end of the outer-layer spiral coil, two ends of the inner-layer spiral coil penetrate out of the pipe wall of the outer-layer spiral coil and then are communicated with the high-boiling-point liquid layer, and the high-temperature oil pump is arranged on the inner-layer spiral coil, so that the high-boiling-; the method comprises the following steps:
heating the furnace body through the heating device to heat the high boiling point liquid layer to the temperature close to the boiling point, and forcing the high boiling point liquid to circularly flow in the inner layer spiral coil pipe through the high-temperature oil pump;
and (II) inputting water from the water inlet pipe, heating the water in the outer layer spiral coil pipe through the heated outer layer spiral coil pipe and the heated inner layer spiral coil pipe, and controlling the pressure and the outflow speed in the outer layer spiral coil pipe by controlling the input pressure and the speed of the water, the diameters of the outer layer spiral coil pipe and the inner layer spiral coil pipe and arranging a control valve on the water vapor output pipe, so that the water in the outer layer spiral coil pipe is heated and then is output in the form of hot water, steam or the combination of the hot water and the steam.
One of the preferred embodiments of the above method for supplying hot water and/or steam of the present invention: the heating device also comprises a gas-liquid circulating system, and the method also comprises the following steps: pumping the vapor of the high boiling point liquid layer after the high boiling point liquid layer is gasified into the high boiling point liquid layer through the gas-liquid circulation system.
One of the preferred embodiments of the above method for supplying hot water and/or steam of the present invention: the heating device is one or more of a combustion device, a chemical energy heating device and a high-temperature flue gas heating device.
One of the preferred embodiments of the above method for supplying hot water and/or steam of the present invention: the boiling point of this high boiling liquid layer was 340 ℃.
One of the preferred embodiments of the above method for supplying hot water and/or steam of the present invention: the high boiling liquid layer is composed of a high boiling liquid energy carrying medium.
One of the preferred embodiments of the above method for supplying hot water and/or steam of the present invention: the furnace body also comprises two end plates which are welded at two ends of the hearth, thereby forming a complete spiral coil membrane wall furnace body.
The method for supplying hot water and/or steam by the double-layer spiral coil heating device has the following beneficial effects:
by utilizing the structure of the double-layer coil membrane wall and the jacket, coordinated and multiple composite heat transfer among various media is formed:
1. the inner ring wall of the outer layer spiral coil pipe is arranged on the side facing fire, so that water vapor in the pipe absorbs the heat of flame;
2. the outer side of the outer ring wall of the outer layer spiral coil pipe enables water vapor in the pipe to exchange heat with high boiling point liquid in the jacket;
3. water vapor in the outer layer spiral coil pipe exchanges heat with high-boiling-point liquid in the inner layer spiral coil pipe in an annular space of the inner and outer double-layer pipes;
4. high boiling point liquid at the outer ring side of the spiral annular sealing plate wall between each circle of the outer layer spiral coil absorbs the combustion heat of the hearth at the inner ring side of the plate wall;
5. the film wall formed by the outer layer spiral coil and the spiral annular sealing plate not only absorbs flame radiation heat transfer on the fire-facing surface, but also transfers heat to media on two sides of the wall of the fire-backing surface by the heat conduction performance of the tube plate assembly.
6. The heating device comprises a double-layer spiral coil membrane type wall furnace body, a cylindrical hearth is formed in a double-layer spiral coil membrane type wall mode, the air tightness is good, the requirements of positive pressure combustion on a boiler can be met, air leakage is less, and the heat efficiency of the boiler is improved; the structure of the furnace wall is simplified, and the total weight of the boiler equipment is reduced; the installation is rapid and convenient, and the maintenance is convenient and simple; the service life of the boiler can be greatly prolonged, and the like.
7. The heating device comprises a furnace body with double-layer spiral coil membrane walls, wherein a cylindrical hearth is formed in the form of the double-layer spiral coil membrane walls, the size is small, the structure is compact, the integral integration of the hearth membrane walls is realized, and the composite corrugated hearth is formed to strengthen the heat exchange between the spiral coil and a jacket and the hearth; the heat-resistant safety of the fire-facing side is improved through multi-medium coordinated heat exchange, and the advantages of the traditional straight plate type mode water-cooled wall are greatly broken through and surpassed in many aspects.
Drawings
FIG. 1 is a schematic view of a double-layer spiral coil film wall hearth structure in embodiment 1 of the present invention;
FIG. 2 is a schematic view of a double-layer spiral coil membrane wall furnace according to example 2 of the present invention;
fig. 3 is a schematic structural view of a heating apparatus according to embodiment 3 of the present invention.
Description of reference numerals:
the device comprises an oil bin cylinder 1, a heat supply device 300, a spiral coil pipe film type wall furnace body 2, a spiral coil pipe film type wall hearth 20, an outer layer spiral coil pipe 201, a spiral sealing plate 202, an inner layer spiral coil pipe 203, a water inlet pipe 3, a water vapor output pipe 4, a jacket space 5, a high boiling point liquid layer 6, an air bin 7, a high temperature flue gas heating device 8 and a gas-liquid circulation system 9.
Detailed Description
In order to make the objects, technical solutions and positive effects of the present invention more apparent, the present invention is further described in detail by the following examples. The following description of specific embodiments is intended to be illustrative of the invention and is not intended to be limiting.
Example 1
A double spiral coil membrane wall furnace as shown in fig. 1, comprising: an outer spiral coil 201, a spiral sealing plate 202, an inner spiral coil 203 penetrating the outer spiral coil 201, the seam between each spiral of the outer spiral coil 201 is welded by the spiral sealing plate 202, thereby forming the complete cylindrical membrane wall hearth 20.
Example 2
A double-layer spiral coil membrane wall furnace body is provided with a hearth 20 in example 1, and end plates (not shown) are welded to both ends of the hearth 20, thereby forming a complete spiral coil membrane wall furnace body 2.
The furnace body 2 formed by the hearth 20 of the embodiment 1 has the outstanding advantage of high heat exchange efficiency: the double-layer spiral coil membrane type wall furnace body 2 can form coordinated and multiple composite heat transfer among various mediums, so that various beneficial heat exchange functions can be derived; the water vapor in the outer layer spiral coil 201 (and the medium in the inner layer spiral coil 203) is continuously reversed in the circumferential tangential direction due to the flowing of the water vapor, and under the multiple actions of centrifugal force, gravity and forced circulation thrust, phase-change irregular strong turbulent flow is formed, so that the heat exchange strength is greatly improved; the inner wall of the furnace body forms an annular corrugated hearth, so that heat sources such as flame and flue gas and the like can transversely scour the corrugated wall surface of the outer layer spiral coil 201 to form cross flow with the flow direction of water vapor in the outer layer spiral coil 201, and the heat exchange of the hearth is effectively enhanced; the cylindrical hearth structure formed by the double-layer spiral coil membrane wall eliminates the dead angles of radiation and flow of flame and smoke, and obviously improves the heat exchange efficiency; the circular symmetrical structure has good elasticity, can well absorb the thermal stress generated during expansion with heat and contraction with cold, greatly reduces the linear high-temperature deformation and the thermal stress of the existing straight-plate membrane wall, and improves the safety; the sealing performance is good, and the device can be used for a positive pressure combustion boiler; the structure of the furnace wall is simplified, and the total weight of the boiler equipment is reduced; the installation is rapid and convenient, and the maintenance is convenient and simple; the service life of the boiler can be greatly prolonged; the double-layer spiral coil membrane wall furnace body has the advantages of high heat exchange efficiency, small volume, compact structure and good structural stability, and can be conveniently applied to medium and small boilers.
Example 3
A heating apparatus 300 as shown in fig. 3, comprising: an oil bin cylinder 1, a furnace body 2 with embodiment 2, a water inlet pipe 3, a vapor outlet pipe 4, a high temperature oil pump (not shown in the figure), a gas-liquid circulation system 9, wherein, the double-layer spiral coil membrane wall furnace body 2 includes a hearth 20, the hearth 20 includes an outer layer spiral coil 201, a spiral sealing plate 202, an inner layer spiral coil 203 penetrating in the outer layer spiral coil 201, the seam between each circle of spiral of the outer layer spiral coil 201 is welded by the spiral sealing plate 202, end plates (not shown in the figure) are welded at both ends of the hearth 20, the furnace body 2 is arranged in the oil bin cylinder 1, a jacket space 5 is formed between the oil bin cylinder 1 and the furnace body 2, a high boiling point liquid layer 6 is arranged in the jacket space, the high boiling point liquid layer 6 is composed of a high boiling point liquid energy-carrying medium with a boiling point of 340 ℃, an air bin 7 is formed between the high boiling point 6 and the top of the oil bin, make air storehouse 7 and the communicating air vent in the external world (not shown in the figure) have been seted up at oil storehouse barrel 1 top, furnace body 2 is equipped with high temperature flue gas heating device 8, inlet tube 3 is connected with outer spiral coil 201's one end, steam output tube 4 is connected with outer spiral coil 201's the other end, inlayer spiral coil 203 both ends are worn out back and are communicated with high boiling point liquid layer 6 on outer spiral coil 201's the pipe wall, the high temperature oil pump sets up on inlayer spiral coil 203, thereby in order to force high boiling point liquid at inlayer spiral coil 203 inner loop flow, vapor pump after gas-liquid circulation system 9 gasifies high boiling point liquid layer 6 goes into high boiling point liquid layer 6.
The furnace body 2 formed by the hearth 20 of the embodiment has the outstanding advantage of high heat exchange efficiency: the double-layer spiral coil membrane type wall furnace body 2 can form coordinated and multiple composite heat transfer among various mediums, so that various beneficial heat exchange functions can be derived; the water vapor in the outer layer spiral coil 201 (and the medium in the inner layer spiral coil 203) is continuously reversed in the circumferential tangential direction due to the flowing of the water vapor, and under the multiple actions of centrifugal force, gravity and forced circulation thrust, phase-change irregular strong turbulent flow is formed, so that the heat exchange strength is greatly improved; the inner wall of the furnace body forms an annular corrugated hearth, so that heat sources such as flame and flue gas and the like can transversely scour the corrugated wall surface of the outer layer spiral coil 201 to form cross flow with the flow direction of water vapor in the outer layer spiral coil 201, and the heat exchange of the hearth is effectively enhanced; the cylindrical hearth structure formed by the double-layer spiral coil membrane wall eliminates the dead angles of radiation and flow of flame and smoke, and obviously improves the heat exchange efficiency; the circular symmetrical structure has good elasticity, can well absorb the thermal stress generated during expansion with heat and contraction with cold, greatly reduces the linear high-temperature deformation and the thermal stress of the existing straight-plate membrane wall, and improves the safety; the sealing performance is good, and the device can be used for a positive pressure combustion boiler; the structure of the furnace wall is simplified, and the total weight of the boiler equipment is reduced; the installation is rapid and convenient, and the maintenance is convenient and simple; the service life of the boiler can be greatly prolonged; the double-layer spiral coil membrane wall furnace body has the advantages of high heat exchange efficiency, small volume, compact structure and good structural stability, and can be conveniently applied to medium and small boilers.
Example 4
A method for supplying hot water using the heating apparatus 300 of embodiment 3, comprising the steps of:
heating the furnace body 2 through a high-temperature flue gas heating device 8 to enable the high-boiling-point liquid layer 6 to be heated to a temperature close to the boiling point of 340 ℃, and forcing the high-boiling-point liquid to circularly flow in the inner-layer spiral coil 203 through a high-temperature oil pump;
(II) inputting water from the water inlet pipe 3, heating the water in the outer-layer spiral coil 201 through the heated outer-layer spiral coil 201 and the heated inner-layer spiral coil 203, and controlling the pressure and the outflow speed in the outer-layer spiral coil 201 by controlling the input pressure and the speed of the water, the diameters of the outer-layer spiral coil 201 and the inner-layer spiral coil 203 and arranging a control valve on the water vapor output pipe 4, so that the water in the outer-layer spiral coil 201 is heated and then is output in a hot water form;
and thirdly, pumping the vapor of the high boiling point liquid layer 6 after the high boiling point liquid layer 6 is gasified into the high boiling point liquid layer 6 through a gas-liquid circulation system 9.
In the implementation process of the method of the embodiment, the furnace body 2 is heated by the high-temperature flue gas heating device 8, so that water in the double-layer spiral coil pipe is heated, and the high-boiling-point liquid layer 6 outside the spiral sealing plate is heated (can be raised to the temperature and pressure allowed by the bin body structure design); water is input from the water inlet pipe 3, the water (or water vapor) in the pipe passing through the outer layer spiral coil 201 is heated by a fire-facing heat source (flame) at the inner cylinder side of the outer layer spiral coil 201 and is also heated by two parts of high boiling point liquid at the inner layer spiral coil 203 and the outer cylinder side of the outer layer spiral coil 201, and when the temperature of the water vapor in the outer layer spiral coil 201 is the same as that of the high boiling point liquid, the water vapor and the high boiling point liquid are isothermally heated and do not exchange heat; when the temperature of the water vapor is higher than that of the high-boiling-point liquid, the high-boiling-point liquid absorbs heat to the water vapor, so that the overtemperature of the water vapor is restricted; the temperature of the high boiling point liquid and the temperature of the steam (or water) can be controlled by controlling the heating (or burning) intensity of the high-temperature flue gas heating device of the hearth; by controlling the input pressure and the input flow rate of water and controlling the diameters of the outer layer spiral coil 201 and the inner layer spiral coil 203 as well as the pressure and the flow rate in the pipes, the water in the outer layer spiral coil 201 is heated and then outputs hot water according to required parameters (the pressure and the temperature corresponding to the designed working pressure of the coil).
Example 5
A method for supplying steam using the heating apparatus 300 of embodiment 3, comprising the steps of:
firstly, heating the furnace body 2 by the high-temperature flue gas heating device 8 to ensure that the high-boiling-point liquid layer 6 is heated to the temperature close to the boiling point of 340 ℃, and forcing the high-boiling-point liquid to circularly flow in the inner-layer spiral coil 203 by a high-temperature oil pump;
(II) inputting water from the water inlet pipe 3, heating the water in the outer-layer spiral coil 201 through the heated outer-layer spiral coil 201 and the heated inner-layer spiral coil 203, and controlling the pressure and the outflow speed in the outer-layer spiral coil 201 by controlling the input pressure and the speed of the water, the diameters of the outer-layer spiral coil 201 and the inner-layer spiral coil 203 and arranging a control valve on the water vapor output pipe 4, so that the water in the outer-layer spiral coil 201 is heated and then is output in a steam form;
and thirdly, pumping the vapor of the high boiling point liquid layer 6 after the high boiling point liquid layer 6 is gasified into the high boiling point liquid layer 6 through a gas-liquid circulation system 9.
In the implementation process of the method of the embodiment, the furnace body 2 is heated by the high-temperature flue gas heating device 8, so that water in the double-layer spiral coil pipe is heated, and the high-boiling-point liquid layer 6 outside the spiral sealing plate is heated (can be raised to the temperature and pressure allowed by the bin body structure design); water is input from the water inlet pipe 3, the water (or water vapor) in the pipe passing through the outer layer spiral coil 201 is heated by a fire-facing heat source (flame) at the inner cylinder side of the outer layer spiral coil 201 and is also heated by two parts of high boiling point liquid at the inner layer spiral coil 203 and the outer cylinder side of the outer layer spiral coil 201, and when the temperature of the water vapor in the outer layer spiral coil 201 is the same as that of the high boiling point liquid, the water vapor and the high boiling point liquid are isothermally heated and do not exchange heat; when the temperature of the water vapor is higher than that of the high-boiling-point liquid, the high-boiling-point liquid absorbs heat to the water vapor, so that the overtemperature of the water vapor is restricted; the temperature of the high boiling point liquid and the temperature of the steam (or water) can be controlled by controlling the heating (or burning) intensity of the high-temperature flue gas heating device of the hearth; by controlling the input pressure and the input flow rate of water and controlling the diameters of the outer layer spiral coil 201 and the inner layer spiral coil 203 and the pressure and the flow rate in the pipes, the water in the outer layer spiral coil 201 is heated and then outputs steam according to required parameters (the pressure and the temperature corresponding to the designed working pressure of the coil).
Example 6
A method for supplying hot water, steam using the heating apparatus 300 of embodiment 3, comprising the steps of:
firstly, heating the furnace body 2 by the high-temperature flue gas heating device 8 to ensure that the high-boiling-point liquid layer 6 is heated to the temperature close to the boiling point of 340 ℃, and forcing the high-boiling-point liquid to circularly flow in the inner-layer spiral coil 203 by a high-temperature oil pump;
(II) inputting water from the water inlet pipe 3, heating the water in the outer-layer spiral coil 201 through the heated outer-layer spiral coil 201 and the heated inner-layer spiral coil 203, and controlling the pressure and the outflow speed in the outer-layer spiral coil 201 by controlling the input pressure and the speed of the water, the diameters of the outer-layer spiral coil 201 and the inner-layer spiral coil 203 and arranging a control valve on the water vapor output pipe 4, so that the water in the outer-layer spiral coil 201 is heated and then is respectively output in the forms of hot water and steam;
and thirdly, pumping the vapor of the high boiling point liquid layer 6 after the high boiling point liquid layer 6 is gasified into the high boiling point liquid layer 6 through a gas-liquid circulation system 9.
In the implementation process of the method of the embodiment, the furnace body 2 is heated by the high-temperature flue gas heating device 8, so that water in the double-layer spiral coil pipe is heated, and the high-boiling-point liquid layer 6 outside the spiral sealing plate is heated (can be raised to the temperature and pressure allowed by the bin body structure design); water is input from the water inlet pipe 3, the water (or water vapor) in the pipe passing through the outer layer spiral coil 201 is heated by a fire-facing heat source (flame) at the inner cylinder side of the outer layer spiral coil 201 and is also heated by two parts of high boiling point liquid at the inner layer spiral coil 203 and the outer cylinder side of the outer layer spiral coil 201, and when the temperature of the water vapor in the outer layer spiral coil 201 is the same as that of the high boiling point liquid, the water vapor and the high boiling point liquid are isothermally heated and do not exchange heat; when the temperature of the water vapor is higher than that of the high-boiling-point liquid, the high-boiling-point liquid absorbs heat to the water vapor, so that the overtemperature of the water vapor is restricted; the temperature of the high boiling point liquid and the temperature of the steam (or water) can be controlled by controlling the heating (or burning) intensity of the high-temperature flue gas heating device of the hearth; by controlling the input pressure and the input flow rate of water and controlling the diameters of the outer layer spiral coil 201 and the inner layer spiral coil 203 and the pressure and the flow rate in the pipes, the water in the outer layer spiral coil 201 is heated and then outputs hot water and steam according to required parameters (the pressure and the temperature corresponding to the designed working pressure of the coil).
Various other changes and modifications to the above-described embodiments and concepts will become apparent to those skilled in the art from the above description, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (8)
1. A method of supplying hot water and/or steam to a double-deck spiral coil heating apparatus, the heating apparatus comprising: an oil bin cylinder, a furnace body, a water inlet pipe, a water vapor output pipe and a high-temperature oil pump; the furnace body comprises a hearth; the hearth comprises an outer layer spiral coil, a spiral sealing plate and an inner layer spiral coil penetrating through the outer layer spiral coil, and a crack between each circle of spirals of the outer layer spiral coil is welded by the spiral sealing plate, thereby forming a complete cylindrical membrane wall hearth; the furnace body is arranged in the oil bin cylinder, a jacket space is formed between the oil bin cylinder and the furnace body, a high-boiling-point liquid layer is arranged in the jacket space, an air bin is formed between the high-boiling-point liquid layer and the top of the oil bin cylinder, the top of the oil bin cylinder is provided with a vent hole which enables the air bin to be communicated with the outside, the furnace body is provided with a heating device, the water inlet pipe is connected with one end of the outer-layer spiral coil, the water vapor output pipe is connected with the other end of the outer-layer spiral coil, two ends of the inner-layer spiral coil penetrate out of the pipe wall of the outer-layer spiral coil and then are communicated with the high-boiling-point liquid layer, and the high-temperature oil pump is arranged on the inner-layer spiral coil, so that the high-boiling-; the method comprises the following steps:
heating the furnace body through the heating device to heat the high boiling point liquid layer to the temperature close to the boiling point, and forcing the high boiling point liquid to circularly flow in the inner layer spiral coil pipe through the high-temperature oil pump;
and (II) inputting water from the water inlet pipe, heating the water in the outer layer spiral coil pipe through the heated outer layer spiral coil pipe and the heated inner layer spiral coil pipe, and controlling the pressure and the outflow speed in the outer layer spiral coil pipe by controlling the input pressure and the speed of the water, the diameters of the outer layer spiral coil pipe and the inner layer spiral coil pipe and arranging a control valve on the water vapor output pipe, so that the water in the outer layer spiral coil pipe is heated and then is output in the form of hot water, steam or the combination of the hot water and the steam.
2. Method for supplying hot water and/or steam according to claim 1, characterized in that: the heating device also comprises a gas-liquid circulating system, and the method also comprises the following steps: pumping the vapor of the high boiling point liquid layer after the high boiling point liquid layer is gasified into the high boiling point liquid layer through the gas-liquid circulation system.
3. Method for supplying hot water and/or steam according to claim 1, characterized in that: the heating device is a combustion device.
4. Method for supplying hot water and/or steam according to claim 1, characterized in that: the heating device is a chemical energy heating device.
5. Method for supplying hot water and/or steam according to claim 1, characterized in that: this heating device high temperature flue gas heating device.
6. Method for supplying hot water and/or steam according to claim 1, characterized in that: the boiling point of this high boiling liquid layer was 340 ℃.
7. Method for supplying hot water and/or steam according to claim 1, characterized in that: the high boiling liquid layer is composed of a high boiling liquid energy carrying medium.
8. Method for supplying hot water and/or steam according to claim 1, characterized in that: the furnace body also comprises two end plates which are welded at two ends of the hearth, thereby forming a complete spiral coil membrane wall furnace body.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016108534260 | 2016-09-27 | ||
| CN201610853426 | 2016-09-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107702340A CN107702340A (en) | 2018-02-16 |
| CN107702340B true CN107702340B (en) | 2021-02-05 |
Family
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Family Applications (12)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710892893.9A Withdrawn CN107606642A (en) | 2016-09-27 | 2017-09-27 | A kind of spiral coil membrane wall burner hearth and its application |
| CN201721252627.1U Expired - Fee Related CN207555643U (en) | 2016-09-27 | 2017-09-27 | A kind of double-layer spiral coil pipe membrane wall burner hearth and its furnace body, heating plant |
| CN201710890606.0A Pending CN107702339A (en) | 2016-09-27 | 2017-09-27 | A kind of method of heat supply oil device provisioning hot water and/or steam |
| CN201710892899.6A Active CN107702340B (en) | 2016-09-27 | 2017-09-27 | Method for supplying hot water and/or steam by double-layer spiral coil heating device |
| CN201710892891.XA Withdrawn CN107606792A (en) | 2016-09-27 | 2017-09-27 | The heating plant of double-layer spiral coil pipe membrane type |
| CN201721251850.4U Expired - Fee Related CN207555990U (en) | 2016-09-27 | 2017-09-27 | The heating plant of double-layer spiral coil pipe membrane wall |
| CN201710892894.3A Withdrawn CN107606793A (en) | 2016-09-27 | 2017-09-27 | A kind of heating plant for exporting deep fat |
| CN201710892053.2A Pending CN107726619A (en) | 2016-09-27 | 2017-09-27 | A kind of method for the heating plant hot-water supply and/or steam for exporting deep fat |
| CN201721251848.7U Expired - Fee Related CN207555989U (en) | 2016-09-27 | 2017-09-27 | A kind of output deep fat and the heating plant of hot water or steam |
| CN201710892896.2A Withdrawn CN107606643A (en) | 2016-09-27 | 2017-09-27 | A kind of double-layer spiral coil pipe membrane wall burner hearth and its application |
| CN201710892054.7A Pending CN107726622A (en) | 2016-09-27 | 2017-09-27 | A kind of method of heating plant hot-water supply and/or steam |
| CN201721250716.2U Expired - Fee Related CN208504445U (en) | 2016-09-27 | 2017-09-27 | A kind of spiral coil membrane wall burner hearth and its furnace body, heating plant |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710892893.9A Withdrawn CN107606642A (en) | 2016-09-27 | 2017-09-27 | A kind of spiral coil membrane wall burner hearth and its application |
| CN201721252627.1U Expired - Fee Related CN207555643U (en) | 2016-09-27 | 2017-09-27 | A kind of double-layer spiral coil pipe membrane wall burner hearth and its furnace body, heating plant |
| CN201710890606.0A Pending CN107702339A (en) | 2016-09-27 | 2017-09-27 | A kind of method of heat supply oil device provisioning hot water and/or steam |
Family Applications After (8)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710892891.XA Withdrawn CN107606792A (en) | 2016-09-27 | 2017-09-27 | The heating plant of double-layer spiral coil pipe membrane type |
| CN201721251850.4U Expired - Fee Related CN207555990U (en) | 2016-09-27 | 2017-09-27 | The heating plant of double-layer spiral coil pipe membrane wall |
| CN201710892894.3A Withdrawn CN107606793A (en) | 2016-09-27 | 2017-09-27 | A kind of heating plant for exporting deep fat |
| CN201710892053.2A Pending CN107726619A (en) | 2016-09-27 | 2017-09-27 | A kind of method for the heating plant hot-water supply and/or steam for exporting deep fat |
| CN201721251848.7U Expired - Fee Related CN207555989U (en) | 2016-09-27 | 2017-09-27 | A kind of output deep fat and the heating plant of hot water or steam |
| CN201710892896.2A Withdrawn CN107606643A (en) | 2016-09-27 | 2017-09-27 | A kind of double-layer spiral coil pipe membrane wall burner hearth and its application |
| CN201710892054.7A Pending CN107726622A (en) | 2016-09-27 | 2017-09-27 | A kind of method of heating plant hot-water supply and/or steam |
| CN201721250716.2U Expired - Fee Related CN208504445U (en) | 2016-09-27 | 2017-09-27 | A kind of spiral coil membrane wall burner hearth and its furnace body, heating plant |
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| Country | Link |
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| CN (12) | CN107606642A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141166B (en) * | 2020-01-14 | 2021-05-18 | 甘肃科博科技咨询有限责任公司 | Oil-gas electric energy heat natural accumulator |
| CN112266161B (en) * | 2020-10-30 | 2023-04-14 | 烽火通信科技股份有限公司 | Vaporization device and method for D4 liquid raw material |
| CN113090526A (en) * | 2021-04-13 | 2021-07-09 | 西安热工研究院有限公司 | Water ring vacuum system with coil pipe condensation cylinder |
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| CN2371334Y (en) * | 1999-05-26 | 2000-03-29 | 张恒春 | Coil heating stove |
| CN2663871Y (en) * | 2003-08-07 | 2004-12-15 | 程洪亮 | Fast energy-saving electric boiler with high carbon molecule heating oil |
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| JPH0252932A (en) * | 1988-08-17 | 1990-02-22 | Sodick Co Ltd | Hot water generator |
| CN2748828Y (en) * | 2004-09-24 | 2005-12-28 | 北京工业大学 | Multilayer film type water-cooled wall flue gas countercurrent flushing water tube oil and gas fired boiler |
| KR20120108205A (en) * | 2011-03-23 | 2012-10-05 | 주식회사 경동나비엔 | A vacuum boiler |
| CN202691995U (en) * | 2012-05-24 | 2013-01-23 | 杭州凯悦海水能源发电科技有限公司 | Vapor generator |
| CN203586182U (en) * | 2013-09-30 | 2014-05-07 | 常州综研加热炉有限公司 | Steam-thermal oil heating furnace |
| CN103471069A (en) * | 2013-10-07 | 2013-12-25 | 黄一可 | Conduction oil steam generation device |
| CN204648676U (en) * | 2015-04-24 | 2015-09-16 | 沈福昌 | A kind of Instant heating type water heater |
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2017
- 2017-09-27 CN CN201710892893.9A patent/CN107606642A/en not_active Withdrawn
- 2017-09-27 CN CN201721252627.1U patent/CN207555643U/en not_active Expired - Fee Related
- 2017-09-27 CN CN201710890606.0A patent/CN107702339A/en active Pending
- 2017-09-27 CN CN201710892899.6A patent/CN107702340B/en active Active
- 2017-09-27 CN CN201710892891.XA patent/CN107606792A/en not_active Withdrawn
- 2017-09-27 CN CN201721251850.4U patent/CN207555990U/en not_active Expired - Fee Related
- 2017-09-27 CN CN201710892894.3A patent/CN107606793A/en not_active Withdrawn
- 2017-09-27 CN CN201710892053.2A patent/CN107726619A/en active Pending
- 2017-09-27 CN CN201721251848.7U patent/CN207555989U/en not_active Expired - Fee Related
- 2017-09-27 CN CN201710892896.2A patent/CN107606643A/en not_active Withdrawn
- 2017-09-27 CN CN201710892054.7A patent/CN107726622A/en active Pending
- 2017-09-27 CN CN201721250716.2U patent/CN208504445U/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2371334Y (en) * | 1999-05-26 | 2000-03-29 | 张恒春 | Coil heating stove |
| CN2663871Y (en) * | 2003-08-07 | 2004-12-15 | 程洪亮 | Fast energy-saving electric boiler with high carbon molecule heating oil |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107606792A (en) | 2018-01-19 |
| CN107702339A (en) | 2018-02-16 |
| CN207555990U (en) | 2018-06-29 |
| CN107606643A (en) | 2018-01-19 |
| CN107726619A (en) | 2018-02-23 |
| CN208504445U (en) | 2019-02-15 |
| CN107606793A (en) | 2018-01-19 |
| CN107702340A (en) | 2018-02-16 |
| CN207555643U (en) | 2018-06-29 |
| CN207555989U (en) | 2018-06-29 |
| CN107726622A (en) | 2018-02-23 |
| CN107606642A (en) | 2018-01-19 |
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