CN110207376B - Vacuum boiler - Google Patents
Vacuum boiler Download PDFInfo
- Publication number
- CN110207376B CN110207376B CN201910533327.8A CN201910533327A CN110207376B CN 110207376 B CN110207376 B CN 110207376B CN 201910533327 A CN201910533327 A CN 201910533327A CN 110207376 B CN110207376 B CN 110207376B
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- China
- Prior art keywords
- boiler
- heat exchange
- communicated
- pipe
- furnace body
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 230000005484 gravity Effects 0.000 claims abstract description 50
- 238000010438 heat treatment Methods 0.000 claims abstract description 30
- 239000000779 smoke Substances 0.000 claims abstract description 22
- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 26
- 239000011490 mineral wool Substances 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 239000011888 foil Substances 0.000 claims description 7
- 239000010865 sewage Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 17
- 239000003546 flue gas Substances 0.000 description 17
- 238000002485 combustion reaction Methods 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
Classifications
-
- 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
- F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
-
- 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
-
- 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
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a vacuum boiler, which comprises a boiler body, wherein water is filled in the boiler body, a boiler liner is arranged in the boiler body, a burner is arranged on the boiler body, a heat exchange pipeline is arranged in the boiler body, and a smoke exhaust pipe penetrating out of the boiler body is fixedly communicated with the heat exchange pipeline; the heat exchange device comprises a furnace body, and is characterized in that a heat exchange cylinder body is communicated with the furnace body, a heating pipe is arranged in the heat exchange cylinder body, two ends of the heating pipe are respectively communicated with a backwater joint and a water outlet joint, a heat exchange pipeline comprises a light pipe connected with the furnace liner and a threaded smoke pipe connected with the light pipe, the threaded smoke pipe is connected with one end of the light pipe, which is connected with the furnace liner, back to the light pipe, the tail end of the threaded smoke pipe is communicated with a condensing box, the condensing box is arranged at one end of the furnace body, which is back to a combustor, a condenser is arranged in the condensing box, a smoke exhaust pipe is fixed in the condensing box, a smoke external circulation system communicated with the combustor is arranged in the condensing box, and a gravity type safety valve is fixed on the heat exchange cylinder body. The utility model has the effect that the safety valve can be opened rapidly when the boiler works abnormally, and the safe operation of the boiler is ensured.
Description
Technical Field
The utility model relates to the technical field of boilers, in particular to a vacuum boiler.
Background
The vacuum hot water boiler is a new generation of hot water equipment, and changes the traditional boiler mode, and integrates a boiler, a heater, a heat exchanger, a vacuum pump and the like into a whole, and the hot water equipment takes oil, natural gas and the like as energy sources. The vacuum hot water boiler utilizes water to have physical characteristics of different boiling points under different air pressures.
The heat supply process of the vacuum hot water boiler comprises the following steps: the method comprises the steps of injecting quantitative high-purity water serving as a heat medium into a closed furnace body of a vacuum hot water boiler, reducing the air pressure in the boiler to be lower than the atmospheric pressure by a vacuum pump, heating the water in the boiler to a boiling point corresponding to the atmospheric pressure by a heater, reheating the water, namely vaporizing to generate negative pressure steam, releasing heat by the steam on a heat exchanger in the furnace body, heating cold water flowing in the heat exchanger to raise the temperature for use, condensing the steam after releasing the heat to form water drops into the water, reheating and vaporizing the water and condensing and heating the steam in the furnace body at the same temperature, and continuously circulating to supply the required hot water.
The Chinese patent with the publication number of CN202734219U discloses a vacuum phase-change hot water boiler, which comprises a boiler barrel, wherein the upper part of the boiler barrel is fixedly provided with a heat exchanger barrel, the two ends of the heat exchanger barrel are fixedly provided with heat exchanger side plates, a heat exchanger is fixedly arranged in the heat exchanger barrel, and a tube seat is communicated with the upper part of the heat exchanger barrel. Two heat exchangers are fixed in the heat exchanger cylinder. The heat exchanger cylinder and the boiler barrel are of an up-down structure, the upper heat exchanger cylinder is in butt joint with the lower boiler barrel in a non-bracing connection mode, so that the heat exchange area of the boiler can be enlarged, the space of the negative pressure steam chamber is enlarged, the heat exchanger can obtain the most effective heat exchange, the lower boiler barrel is a heated part of the boiler, the fuel heat energy is fully absorbed, one or more heat exchangers are arranged in the heat exchanger cylinder, the volume of the negative pressure steam chamber is ensured to be larger, and the heat exchanger can fully exchange heat.
The prior art solutions described above have the following drawbacks: the heat exchanger and flue fixed in the furnace body, the installation and use of this kind of vacuum hot water boiler need occupy more building area, and increased use cost, still maintain trouble, in addition, set up the function of superpressure steam release safety device on the vacuum hot water boiler when the temperature pressure rise out of control, superpressure steam release safety device plays the steam release and steps down, prevent the occurence of failure, the superpressure steam release safety device of the vacuum hot water boiler on the market at present, generally use the safety cock, its principle is that set up low-melting metal sheet at the boiler top, the fusing point is 100-108 ℃, when the steam temperature reaches or exceeds 100 ℃, the metal melts and explodes, the steam in the furnace body washes out the furnace body through the broken hole, reduce the atmospheric pressure in the furnace body, play safety protection, but this kind of safety cock can only disposable use, the trouble, cost of maintenance.
Disclosure of Invention
The utility model aims to provide a vacuum boiler, which has the effect that a safety valve can be quickly opened when the boiler works abnormally, so that the safe operation of the boiler is ensured.
The technical aim of the utility model is realized by the following technical scheme:
the vacuum boiler comprises a boiler body, wherein water is filled in the boiler body, a boiler liner is arranged in the boiler body, a burner communicated with one end of the boiler liner is arranged on the boiler body, a heat exchange pipeline which is fixedly communicated with the boiler liner is arranged in the boiler body, and a smoke exhaust pipe penetrating out of the boiler body is fixedly communicated with the heat exchange pipeline; the utility model discloses a boiler body, including furnace body, heat exchange tube, condenser, exhaust pipe, condenser upper end intercommunication has the first joint that stretches out the furnace body, condenser lower extreme intercommunication has the second joint that stretches out the furnace body, exhaust pipe is fixed in the condensing box, be provided with the flue gas external circulation system with the combustor intercommunication in the condensing box, be provided with gravity type relief valve on the heat exchange tube.
By adopting the technical scheme, the burner sprays flame to burn in the furnace liner, thereby heating water in the furnace body, the flue gas after burning in the furnace liner heats the water in the furnace body when passing through the light pipe and the threaded smoke pipe in sequence, the flue gas in the heat exchange pipeline enters the condensing box, thereby heating the water in the condensing box, the water enters the condensing box from the first joint, the water in the condensing box flows out from the second joint, the water flowing out from the second joint enters the heating pipe through the backwater joint, negative pressure steam in the heat exchange cylinder liquefies into liquid on the outer side surface of the heating pipe and drops into the furnace body, thereby heating the heating pipe, improving the temperature of the water in the heating pipe, and the water in the heating pipe flows out from the water outlet joint, thereby realizing the heating in the furnace body;
the flue gas external circulation system can absorb part of flue gas in the condensing box to enter the combustion chamber, so that the nitrogen content in the discharged waste gas is reduced;
the gravity type safety valve is a mechanical device, can be opened rapidly under abnormal conditions, has stable mechanical opening effect, and ensures safe operation of the boiler.
The utility model is further provided with: the gravity type safety valve comprises an outer tube which is fixed on the heat exchange cylinder and is communicated with the inner cavity of the heat exchange cylinder, the axis of the outer tube is in the vertical direction, a flange plate is fixedly arranged at one end of the outer tube, which is opposite to the heat exchange cylinder, and a guide rod is fixedly arranged on the flange plate; the inner cavity of one end of the outer tube, which is opposite to the heat exchange cylinder, is provided with a sealing shaft, one end of the sealing shaft, which extends out of the outer tube, is fixedly provided with a gravity block, the gravity block penetrates through the guide rod, and the gravity block is propped against the end face of the outer tube, which is opposite to the heat exchange cylinder.
Through adopting above-mentioned technical scheme, when the effect of the interior gaseous of heat transfer barrel that the gravity piece received is greater than the effort of gravity piece along guide bar axial direction, the gravity piece removes along guide bar axial direction, and the gravity piece removes and drives sealed axle and remove along outer tube medial surface, until sealed axle shifts out from the outer tube, realizes opening of gravity type relief valve, and the valve is opened rapidly, and machinery is opened, opens steadily.
The utility model is further provided with: and a chamfer is arranged at one end of the sealing shaft, which is opposite to the gravity block.
Through adopting above-mentioned technical scheme, the setting of chamfer is convenient for insert in the outer tube when sealed axle removes along the guide bar axis direction.
The utility model is further provided with: the gravity block is provided with a yielding hole, a limit screw rod is arranged in the yielding hole in a penetrating mode, the limit screw rod is fixed on the heat exchange cylinder body, and a limit nut is connected to the limit screw rod in a threaded mode.
Through adopting above-mentioned technical scheme, with stop nut and stop screw threaded connection, when the effect of the interior gas of the heat transfer barrel that the gravity piece received moves along guide bar axis direction, stop nut can restrict the range of movement of gravity piece, avoids the condition emergence that gravity piece and guide bar break away from.
The utility model is further provided with: and the sealing shaft is sleeved with a heat-resistant sealing gasket, and the heat-resistant sealing gasket is pressed on the surface of the gravity block opposite to the outer tube.
By adopting the technical scheme, the heat-resistant sealing gasket can improve the sealing effect of the sealing shaft and the gravity block on the outer pipe, and improve the working precision of the safety valve.
The utility model is further provided with: the gravity block is tightly connected with a plurality of adjusting blocks by using screws.
Through adopting above-mentioned technical scheme, can adjust the gravity of regulating block through the quantity of adjusting the regulating block to adjust the cracking pressure of valve, when the guide bar can not keep vertical simultaneously, can adjust the effort of gravity block along vertical guide bar axis direction through the quantity of adjusting the gravity block, thereby ensure that valve pressure is suitable.
The utility model is further provided with: mirror aluminum foil is attached to the surface of the inner cavity of the furnace body, and a heat-insulating rock wool plate is arranged between the aluminum foil and the inner wall of the furnace body.
Through adopting above-mentioned technical scheme, the setting of aluminium foil can reduce the heat radiation of liquid in the furnace body, and heat preservation rock wool board can reduce the heat conduction of liquid in the furnace body, improves furnace body heat preservation effect, reduces furnace body heat loss.
The utility model is further provided with: and a sewage discharging joint is communicated with the furnace body.
By adopting the technical scheme, after the sewage joint is opened, part of sewage in the furnace body flows out from the furnace body, so that the quality of water in the furnace body is improved, and the corrosion of the water in the furnace body to the boiler is delayed.
In summary, the beneficial effects of the utility model are as follows:
1. the burner sprays flame to burn in the stove courage, thus heat the water in the stove body, the flue gas after burning in the stove courage heats the water in the stove body when passing through the light pipe, screw thread tobacco pipe sequentially, the flue gas in the heat exchange pipeline enters the condensing box, thus heat the water in the condensing box, water enters the condensing box from the first joint, the water in the condensing box flows out from the second joint, the water flowing out from the second joint enters the heating pipe through the backwater joint, the negative pressure steam in the heat exchange cylinder liquefies into liquid on the outer side surface of the heating pipe and drops into the stove body to heat the heating pipe, the temperature of the water in the heating pipe is improved, the water in the heating pipe flows out from the water outlet joint, realize to the stove body;
the flue gas external circulation system can absorb part of flue gas in the condensing box to enter the combustion chamber, so that the nitrogen content in the discharged waste gas is reduced;
the gravity type safety valve is a mechanical device, can be opened rapidly under abnormal conditions, has stable mechanical opening effect, and ensures safe operation of the boiler.
Drawings
FIG. 1 is a schematic overall structure of an embodiment;
fig. 2 is a schematic cross-sectional structure of a gravity type safety valve in an embodiment.
In the figure, 11, a furnace body; 12. a furnace pipe; 13. a burner; 14. a heat-preserving rock wool board; 15. mirror aluminum foil; 16. a sewage discharge joint; 17. a pressure gauge joint; 18. a water inlet joint; 21. a heat exchange cylinder; 22. heating pipes; 23. a backwater joint; 24. a water outlet joint; 3. a heat exchange pipeline; 31. a light pipe; 32. a threaded smoke tube; 33. a condensing box; 331. a condenser; 332. a first joint; 333. a second joint; 4. a smoke exhaust pipe; 5. an external flue gas circulation system; 6. a gravity type safety valve; 61. an outer tube; 62. a flange plate; 63. a guide rod; 64. sealing the shaft; 65. a gravity block; 651. an adjusting block; 66. a limit screw; 661. a limit nut; 67. a heat resistant gasket.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1, the utility model discloses a vacuum boiler, which comprises a boiler body 11, wherein a heat-insulating rock wool board 14 is attached to the inner cavity surface of the boiler body 11, the heat resistance of the heat-insulating rock wool board 14 is strong, the heat insulation coefficient is large, the heat conduction between the inside and the outside of the boiler body 11 can be reduced by the heat-insulating rock wool board 14, a layer of mirror aluminum foil 15 is laid on the inner side surface of the heat-insulating rock wool board 14, which is back to the inner wall of the boiler body 11, and the heat radiation of high-temperature liquid in the inner cavity of the boiler body 11 can be reduced by the mirror aluminum foil 15.
Referring to fig. 1, the bottom end of the furnace body 11 is communicated with a drain joint 16, the drain joint 16 is communicated with a valve for controlling the drain joint 16 to open and close, a small amount of calcium and magnesium ion sediment is formed after part of water in the furnace body 11 is heated, after the drain joint 16 is opened, part of sewage in the furnace body 11 flows out from the furnace body 11, so that the quality of the water in the furnace body 11 is improved, and the corrosion of the water in the furnace body 11 to a boiler is delayed.
Referring to fig. 1, a circular tube type furnace pipe 12 is arranged in a furnace body 11, a burner 13 communicated with one end of the furnace pipe 12 is fixedly arranged on the furnace body 11, a back combustion chamber communicated with the inner cavity of the furnace pipe 12 is integrally arranged at one end of the furnace pipe 12 back to the burner 13, the back combustion chamber is a cylindrical shell with the inner diameter larger than that of the furnace pipe 12, and a round hole with the same inner diameter as that of the furnace pipe 12 is formed in the end face of the back combustion chamber facing the furnace pipe 12.
Referring to fig. 1, a heat exchange pipeline 3 which is connected with the surface of the back combustion chamber and the furnace chamber 12 and is communicated with the inner cavity of the back combustion chamber is fixed in the furnace body 11, the heat exchange pipeline 3 comprises a light pipe 31 welded with the furnace chamber 12, the axis of the light pipe 31 is parallel to the axis of the furnace body 11, a plurality of light pipes 31 are arranged on the surface of the back combustion chamber, which is connected with the furnace chamber 12, and the light pipe 31 is made of 304 stainless steel pipes. The furnace body 11 is provided with a heat exchange box, the heat exchange box is fixed on the side wall of the furnace body 11 provided with the burner 13, the heat exchange box is communicated with the inner cavity of the light pipe 31, the heat exchange pipeline 3 comprises a threaded smoke pipe 32 which is fixed on the heat exchange box and is positioned in the furnace body 11, the axis of the threaded smoke pipe 32 is parallel to the axis of the light pipe 31, and a plurality of threaded smoke pipes 32 are arranged in the furnace body 11 at intervals.
Referring to fig. 1, one end of the threaded smoke tube 32, which is opposite to the heat exchange box, is communicated with a condensing box 33 fixed on the furnace body 11, the condensing box 33 is positioned at one end of the backfire chamber, which is opposite to the furnace liner 12, and one end of the condensing box 33, which is opposite to the backfire chamber, is positioned at the outer side of the furnace body 11. The condenser 331 is arranged in the condensing box 33, the upper end of the condenser 331 is communicated with a first connector 332 extending out of the furnace body 11, the lower end of the condensing box 33 is communicated with a second connector 333 extending out of the furnace body 11, and the heat exchange pipeline 3 is fixedly provided with a smoke exhaust pipe 4 communicated with the inner cavity of the heat exchange pipeline and penetrating out of the furnace body 11.
Referring to fig. 1, an external flue gas circulation system 5 communicating with the burner 13 is provided in the condensation tank 33. The flue gas external circulation system 5 includes an air suction pipe located in the condensation tank 33, and a communication pipe for conveying part of the flue gas to the burner 13 is connected to the air suction pipe.
Referring to fig. 1, a heat exchange cylinder 21 is communicated with the upper end of a furnace body 11, an opening is formed in one end, facing the furnace body 11, of the heat exchange cylinder 21, heating pipes 22 are arranged in the heat exchange cylinder 21 at intervals, a plurality of heating pipes 22 are arranged in the furnace body 11 at intervals, two ends of each heating pipe 22 extend out of the heat exchange cylinder 21, two ends of each heating pipe 22 are respectively communicated with a backwater box and a water outlet box, the backwater box and the water outlet box are both fixed on the outer side of the heat exchange cylinder 21, backwater joints 23 are communicated on the backwater box, and water outlet joints 24 are communicated on the water outlet box.
Referring to fig. 1, a gravity type safety valve 6 is fixed to the upper end of the side surface of the heat exchange cylinder 21. The upper end of the side surface of the heat exchange cylinder 21 is fixed with a pressure gauge joint 17, the upper end of the side surface of the heat exchange cylinder 21 is fixed with a water inlet joint 18, and the water inlet joint 18 is communicated with a valve for controlling the water inlet joint 18 to open and close.
Referring to fig. 2, the gravity type safety valve 6 includes an outer tube 61 fixed to the heat exchange cylinder 21 and communicating with the inner cavity of the heat exchange cylinder 21, the axis of the outer tube 61 is along the vertical direction, one end of the outer tube 61 facing away from the heat exchange cylinder 21 is integrally provided with a flange plate 62, and a guide rod 63 with an axis parallel to the axis of the outer tube 61 is welded on the flange plate 62.
Referring to fig. 2, a sealing shaft 64 is disposed at one end of the inner cavity of the outer tube 61 facing away from the heat exchange cylinder 21, the outer side surface of the sealing shaft 64 abuts against the inner side surface of the outer tube 61, a gravity block 65 is connected to one end of the sealing shaft 64 extending out of the outer tube 61 in a threaded manner, an external thread is disposed at the outer side of one end of the sealing shaft 64 extending out of the outer tube 61, and an internal threaded hole corresponding to the sealing shaft 64 is formed in the gravity block 65. The weight 65 passes through the guide bar 63. The sealing shaft 64 is sleeved with a heat-resistant sealing pad 67, and the heat-resistant sealing pad 67 is pressed on the surface of the gravity block 65 opposite to the outer tube 61.
Referring to fig. 2, a relief hole is formed in the gravity block 65, a limit screw 66 is inserted into the relief hole, the limit screw 66 is fixed on the heat exchange cylinder 21, and a limit nut 661 is connected to the limit screw 66 in a threaded manner.
Referring to fig. 2, the limit nut 661 is screwed with the limit screw 66, and when the gravity block 65 is moved in the axial direction of the guide rod 63 by the action of the gas in the heat exchange cylinder 21, the limit nut 661 can limit the movement range of the gravity block 65, so as to avoid the separation of the gravity block 65 from the guide rod 63.
Referring to fig. 2, several adjusting blocks 651 are attached to the weight block 65 using screw compression, and each adjusting block 651 has the same mass.
The implementation principle of the embodiment is as follows:
the burner 13 sprays flame to burn in the furnace liner 12, so that water in the furnace body 11 is heated, when flue gas after burning in the furnace liner 12 sequentially passes through the light pipe 31 and the threaded smoke pipe 32, the water in the furnace body 11 is heated, flue gas in the heat exchange pipeline 3 enters the condensing box 33, so that the water in the condensing box 33 is heated, the water enters the condensing box 33 from the first connector 332, the water in the condensing box 33 flows out from the second connector 333, the water flowing out from the second connector 333 enters the heating pipe 22 through the backwater connector 23, negative pressure steam in the heat exchange cylinder 21 is liquefied into liquid on the outer side surface of the heating pipe 22 and drops into the furnace body 11, so that the heating pipe 22 is heated, the temperature of the water in the heating pipe 22 is increased, and the water in the heating pipe 22 flows out from the water outlet connector 24, so that the water in the furnace body 11 is realized;
the flue gas external circulation system 5 can absorb part of the flue gas in the condensing box 33 to enter the combustion chamber, so that the nitrogen content in the discharged waste gas is reduced;
when the action of the gas in the heat exchange cylinder 21 received by the gravity block 65 is greater than the acting force of the gravity block 65 along the axial direction of the guide rod 63, the gravity block 65 moves along the axial direction of the guide rod 63, and the gravity block 65 moves to drive the sealing shaft 64 to move along the inner side surface of the outer tube 61 until the sealing shaft 64 moves out of the outer tube 61, so that the gravity type safety valve 6 is opened, and the valve is opened quickly, mechanically opened and opened stably.
The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.
Claims (5)
1. The vacuum boiler comprises a boiler body (11), wherein water is filled in the boiler body (11), a boiler liner (12) is arranged in the boiler body (11), a burner (13) communicated with one end of the boiler liner (12) is arranged on the boiler body (11), a heat exchange pipeline (3) which is fixedly communicated with the boiler liner (12) is arranged in the boiler body (11), and a smoke exhaust pipe (4) penetrating out of the boiler body (11) is fixedly communicated with the heat exchange pipeline (3); the utility model discloses a boiler is characterized in that a heat exchange barrel (21) is communicated with the boiler body (11), a heating pipe (22) is arranged in the heat exchange barrel (21), and two ends of the heating pipe (22) are respectively communicated with a backwater joint (23) and a water outlet joint (24), and the boiler is characterized in that: the heat exchange pipeline (3) comprises a light pipe (31) connected with the furnace liner (12) and a threaded smoke pipe (32) connected with the light pipe (31), the threaded smoke pipe (32) is connected to one end of the light pipe (31) which is opposite to the light pipe (31) and connected with the furnace liner (12), a condensing box (33) is communicated with the tail end of the threaded smoke pipe (32), the condensing box (33) is arranged at one end of the furnace body (11) which is opposite to the burner (13), a condenser (331) is arranged in the condensing box (33), a first joint (332) extending out of the furnace body (11) is communicated with the upper end of the condenser (331), a second joint (333) extending out of the furnace body (11) is communicated with the lower end of the condenser (331), the smoke exhaust pipe (4) is fixed to the condensing box (33), a smoke external circulation system (5) which is communicated with the burner (13) is arranged in the condensing box (33), and a gravity type safety valve (6) is arranged on the heat exchange cylinder (21);
the gravity type safety valve (6) comprises an outer tube (61) which is fixed on the heat exchange cylinder (21) and is communicated with the inner cavity of the heat exchange cylinder (21), the axis of the outer tube (61) is in the vertical direction, one end of the outer tube (61) which is opposite to the heat exchange cylinder (21) is fixedly provided with a flange plate (62), and the flange plate (62) is fixedly provided with a guide rod (63); a sealing shaft (64) is arranged in an inner cavity of one end of the outer tube (61) which is away from the heat exchange tube (21), a gravity block (65) is fixedly arranged at one end of the sealing shaft (64) which extends out of the outer tube (61), the gravity block (65) passes through the guide rod (63), and the gravity block (65) is pressed against the end face of the outer tube (61) which is away from the heat exchange tube (21); a relief hole is formed in the gravity block (65), a limit screw (66) is arranged in the relief hole in a penetrating manner, the limit screw (66) is fixed on the heat exchange cylinder (21), and a limit nut (661) is connected to the limit screw (66) in a threaded manner; the gravity block (65) is tightly connected with a plurality of adjusting blocks (651) by using screws.
2. The vacuum boiler according to claim 1, wherein: one end of the sealing shaft (64) facing away from the gravity block (65) is provided with a chamfer.
3. The vacuum boiler according to claim 1, wherein: the sealing shaft (64) is sleeved with a heat-resistant sealing gasket (67), and the heat-resistant sealing gasket (67) is pressed on the surface of the gravity block (65) opposite to the outer tube (61).
4. The vacuum boiler according to claim 1, wherein: mirror aluminum foil (15) is attached to the inner cavity surface of the furnace body (11), and a heat-insulating rock wool board (14) is arranged between the aluminum foil and the inner wall of the furnace body (11).
5. The vacuum boiler according to claim 1, wherein: a sewage discharging joint (16) is communicated with the furnace body (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533327.8A CN110207376B (en) | 2019-06-19 | 2019-06-19 | Vacuum boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910533327.8A CN110207376B (en) | 2019-06-19 | 2019-06-19 | Vacuum boiler |
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| Publication Number | Publication Date |
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| CN110207376A CN110207376A (en) | 2019-09-06 |
| CN110207376B true CN110207376B (en) | 2024-03-12 |
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| CN201910533327.8A Active CN110207376B (en) | 2019-06-19 | 2019-06-19 | Vacuum boiler |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0961089A2 (en) * | 1998-05-29 | 1999-12-01 | Riihimäen Metallikaluste Oy | Central heating boiler |
| CN201926121U (en) * | 2010-11-17 | 2011-08-10 | 安阳方快锅炉有限公司 | Horizontal type condensing normal pressure hot water boiler |
| CN103697582A (en) * | 2013-11-29 | 2014-04-02 | 原平市暖圣热能设备有限公司 | Oil-fired and gas-fired atmospheric hot water boiler |
| CN208108490U (en) * | 2018-04-02 | 2018-11-16 | 青岛青义锅炉有限公司 | A kind of ultralow nitrogen condensate vacuum hot-water boiler of integral type |
| CN210119008U (en) * | 2019-06-19 | 2020-02-28 | 江苏科诺锅炉有限公司 | Vacuum boiler |
-
2019
- 2019-06-19 CN CN201910533327.8A patent/CN110207376B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0961089A2 (en) * | 1998-05-29 | 1999-12-01 | Riihimäen Metallikaluste Oy | Central heating boiler |
| CN201926121U (en) * | 2010-11-17 | 2011-08-10 | 安阳方快锅炉有限公司 | Horizontal type condensing normal pressure hot water boiler |
| CN103697582A (en) * | 2013-11-29 | 2014-04-02 | 原平市暖圣热能设备有限公司 | Oil-fired and gas-fired atmospheric hot water boiler |
| CN208108490U (en) * | 2018-04-02 | 2018-11-16 | 青岛青义锅炉有限公司 | A kind of ultralow nitrogen condensate vacuum hot-water boiler of integral type |
| CN210119008U (en) * | 2019-06-19 | 2020-02-28 | 江苏科诺锅炉有限公司 | Vacuum boiler |
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| Publication number | Publication date |
|---|---|
| CN110207376A (en) | 2019-09-06 |
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