CN112050463B - Straight-flow coil pipe type high-pressure hot water boiler - Google Patents
Straight-flow coil pipe type high-pressure hot water boiler Download PDFInfo
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- CN112050463B CN112050463B CN202010885175.0A CN202010885175A CN112050463B CN 112050463 B CN112050463 B CN 112050463B CN 202010885175 A CN202010885175 A CN 202010885175A CN 112050463 B CN112050463 B CN 112050463B
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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
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
- F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/16—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
- F24H1/165—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled using fluid fuel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
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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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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a straight-flow coil pipe type high-pressure hot water boiler, and relates to the technical field of boilers. The invention comprises a boiler which is vertically arranged and a burner which is arranged below the boiler; four supporting legs are arranged below the boiler; a circular hole matched with a jet combustion pipe of a burner is formed below the boiler, and a waste heat heater, a direct-current spiral coil pipe and a double-pipe single-way pressurizing heater are sequentially arranged in the boiler from top to bottom; a shunt core barrel is coaxially arranged below the waste heat heater; the shunt core barrel is arranged in the direct current spiral coil pipe; the direct current spiral coil is connected with the inner wall of the boiler through a plurality of isolation supporting pieces; an exhaust pipe penetrates through and is fixed on the peripheral side surface of the upper end of the boiler; a water inlet pipe communicated with the waste heat heater penetrates through and is fixed on the circumferential side surface of the upper end part of the boiler. According to the invention, the heating modes of initial heating, middle heating and final heating are adopted from top to bottom in the boiler, so that hot water is rapidly heated, and the tail end is pressurized and heated, so that the heat energy of the hot water is improved.
Description
Technical Field
The invention belongs to the technical field of boilers, and particularly relates to a straight-flow coil type high-pressure hot water boiler.
Background
The development of electric boilers has been long-lived, and the first electric heating technology was in the form of heating boiler feed water using low-voltage heating tubes, which are generally low in power, short in the life of the heating tubes, and uneconomical to apply. The concept of high-pressure electrode boiler is firstly proposed by some overseas boiler enterprises, and the boiler forms developed and manufactured by the enterprises are different and have the advantages and the disadvantages. At present, the high-voltage electrode hot water boiler which is applied to domestic and foreign markets heats water into saturated steam, and then generates hot water through phase change heat exchange through a steam-water heat exchanger. The circulation multiplying power of the high-voltage electrode boiler is usually larger, usually more than 10, and some are even higher; therefore, the circulation pump is too large in model selection and consumes too much electric energy during operation. Meanwhile, because the boiler generates saturated steam, the number of corresponding pipe seats and auxiliary instruments on the boiler shell is large, the boiler is too complex, and the boiler cost is high. Therefore, the high-voltage electrode hot water boiler in the current market has the problems of high purchase cost, high operation cost and the like.
Gas-fired boilers are boiler plants fueled by combustible gases, such as natural gas. The gas boiler exchanges heat with a fluid to be heated by using heat generated by combustion of gas to obtain a desired heated fluid. The boiler exhaust smoke is basically dust-free, and particularly when natural gas is used as fuel, the boiler exhaust smoke is not only dust-free, but also extremely low in sulfur dioxide content. On the premise of increasing environmental protection requirement standards and under the great situation that large-scale central heating in cities is a development trend, the gas-fired boiler has a greater development prospect compared with an oil-fired boiler and a coal-fired boiler. However, when the gas boiler is operated, nitrogen in air participating in combustion is oxidized into nitrogen oxides and is discharged into the atmosphere along with flue gas, so that pollution is caused. In the case of gas-fired boilers, the nitrogen oxides produced during operation are low and therefore generally meet direct emission standards.
The existing boiler is used for heating hot water, the heating process in the boiler is single, the heating efficiency is low, and the energy utilization is poor.
Disclosure of Invention
The invention aims to provide a straight-flow coil pipe type high-pressure hot water boiler which is characterized in that a heating mode of primary heating, middle heating and final heating is adopted from top to bottom in a boiler to quickly heat hot water, and the tail end of the boiler is pressurized and heated to improve the heat energy of the hot water and solve the existing problems.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a straight-flow coil pipe type high-pressure hot water boiler, which comprises a boiler arranged vertically and a burner arranged below the boiler; four supporting legs are arranged below the boiler; a circular hole matched with a jet combustion pipe of a burner is formed below the boiler, and a waste heat heater, a direct-current spiral coil pipe and a double-pipe single-way pressurizing heater are sequentially arranged in the boiler from top to bottom; a shunt core barrel is coaxially arranged below the waste heat heater; the shunt core barrel is arranged in the direct current spiral coil pipe; the direct current spiral coil is connected with the inner wall of the boiler through a plurality of isolation supporting pieces; an exhaust pipe penetrates through and is fixed on the circumferential side surface of the upper end of the boiler; a water inlet pipe communicated with the waste heat heater penetrates through and is fixed on the circumferential side surface of the upper end part of the boiler; a hot water outlet pipe communicated with the output end of the double-pipe single-way booster heater penetrates through and is fixed on the peripheral side surface of the lower end part of the boiler; the upper end of the direct current spiral coil is communicated with a waste heat heater; the lower end of the direct current spiral coil is communicated with the water inlet end of the double-pipe one-way booster heater; the double-pipe single-way booster heater comprises a three-way pipe communicated with the lower end of the direct-current spiral coil pipe, two heating pipes connected with the other two ends of the three-way pipe and a single-way booster arranged at the other ends of the two heating pipes; and a DCV one-way valve is arranged at the joint of the three-way pipe and the heating pipe.
Further, the peripheral surface of the boiler is provided with an insulating layer.
The waste heat heater further comprises a hollow cylindrical water tank; first air guide pipes penetrating through the upper end face and the lower end face are uniformly distributed and fixed on the cylindrical water tank; a second air duct penetrating through the upper end face and the lower end face is coaxially fixed on the cylindrical water tank; the second air duct is communicated with the shunt core barrel.
Furthermore, the shunt core barrel is of a closed cavity structure with two truncated cone-shaped ends and a cylindrical center.
The isolation support comprises a U-shaped clamping plate and a T-shaped inserting block; two ends of the U-shaped clamping plate are respectively fixed with a positioning pore plate pointing to the outside; two side walls of the U-shaped clamping plate are provided with rectangular slots which are in inserting fit with the T-shaped inserting blocks; two positioning round holes matched with the two positioning hole plates are formed in two ends of the same side face of the T-shaped inserting block.
The single-way supercharger further comprises a cuboid valve body with a square channel at the central cross section and a rectangular valve block rod in sliding fit with the channel of the cuboid valve body; two water inlet holes are symmetrically formed in two end parts of one side surface of the cuboid valve body; the two water inlet holes are respectively communicated with the two heating pipes; the middle part of the other side surface of the cuboid valve body is provided with a water outlet hole; the water outlet hole is communicated with a hot water outlet pipe; the two ends of the rectangular valve block rod are provided with quadrangular frustum; the middle two thirds parts of two ends of the internal channel of the cuboid valve body are provided with quadrangular pyramid grooves matched with the quadrangular pyramid platforms; and the upper end surface and the lower end surface of the rectangular valve block rod and the side surface facing the water outlet hole are provided with symmetrically arranged L-shaped flow guide channels.
The invention has the following beneficial effects:
1. when boiled water reaches the double-pipe single-way pressurizing heater at the tail end of the heating device, hot water flows through the two heating pipes in a single direction, the hot water in the pipes is continuously heated, the pressure in the heating pipes is increased and then pushes the rectangular valve block rod to release pressure, high-pressure hot water is discharged from the hot water outlet pipe, the two heating pipes are alternately discharged, and the double-pipe single-way pressurizing heater pressurizes the hot water before discharging to improve the heat energy.
2. The heating water flows downwards along the direct current spiral coil pipe, the direct current spiral coil pipe is positioned between the flow dividing core barrel and the inner wall of the boiler in the flowing process, the burning flame is in an annular barrel shape and upwards heats the direct current spiral coil pipe, the temperature of the water in the direct current spiral coil pipe is gradually increased in the downward flowing process, the heating amount is gradually increased, the water is boiled before reaching the lower end, and the temperature is quickly heated in the whole process.
3. The waste heat heater for primary heating of the invention is contacted with high-temperature flue gas in a large area at the top, and heat is conducted to make-up water which just enters the cylindrical water tank, so that the water entering the boiler is preheated, and the energy utilization rate is improved.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view showing a structure of a straight coil type high pressure hot water boiler according to the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B;
FIG. 4 is a schematic structural view of a waste heat heater, a direct current spiral coil and a shunt core barrel;
FIG. 5 is a schematic view of the isolation support;
in the drawings, the components represented by the respective reference numerals are listed below:
1-boiler, 2-burner, 3-waste heat heater, 4-direct current spiral coil pipe, 5-double-pipe single-way pressurizing heater, 6-shunt core barrel, 7-isolation support piece, 8-single-way pressurizer, 9-DCV one-way valve, 10-heat insulation layer, 101-support leg, 102-round hole, 103-exhaust pipe, 104-inlet pipe, 105-hot water outlet pipe, 301-cylindrical water tank, 302-first air duct, 303-second air duct, 501-three-way pipe, 502-heating pipe, 701-U-shaped clamping plate, 702-T-shaped inserting block, 703-positioning orifice plate, 704-rectangular slot, 705-positioning round hole, 801-cuboid valve body, 802-rectangular valve block rod, 803-inlet hole, 804-water outlet hole, 805-quadrangular pyramid frustum, 806-quadrangular pyramid groove and 807-L-shaped flow guide channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, the present invention relates to a straight-flow coil high-pressure hot water boiler, which comprises a boiler 1 vertically disposed, and a burner 2 disposed below the boiler 1; four supporting legs 101 are arranged below the boiler 1; a round hole 102 matched with a jet combustion pipe of the combustor 2 is formed below the boiler 1, and a waste heat heater 3, a direct current spiral coil pipe 4 and a double-pipe single-way pressurizing heater 5 are sequentially arranged in the boiler 1 from top to bottom; a shunt core barrel 6 is coaxially arranged below the waste heat heater 3; the shunt core barrel 6 is arranged inside the direct current spiral coil 4; the direct current spiral coil 4 is connected with the inner wall of the boiler 1 through a plurality of isolation supporting pieces 7;
an exhaust pipe 103 is fixedly penetrated through the peripheral side surface of the upper end of the boiler 1; a water inlet pipe 104 communicated with the waste heat heater 3 penetrates through and is fixed on the circumferential side surface of the upper end part of the boiler 1; a hot water outlet pipe 105 communicated with the output end of the double-pipe single-way booster heater 5 penetrates through and is fixed on the peripheral side surface of the lower end part of the boiler 1;
the upper end of the direct current spiral coil 4 is communicated with the waste heat heater 3; the lower end of the direct current spiral coil 4 is communicated with the water inlet end of the double-pipe one-way booster heater 5;
the double-pipe single-way booster heater 5 comprises a three-way pipe 501 communicated with the lower end of the direct-current spiral coil 4, two heating pipes 502 connected with the other two ends of the three-way pipe 501 and a single-way booster 8 arranged at the other ends of the two heating pipes 502; a DCV check valve 9 is arranged at the joint of the three-way pipe 501 and the heating pipe 502.
Wherein the peripheral surface of the boiler 1 is provided with an insulating layer 10.
Wherein the waste heat heater 3 comprises a hollow cylindrical water tank 301; first air ducts 302 penetrating through the upper end face and the lower end face are uniformly distributed and fixed on the cylindrical water tank 301; a second air duct 303 penetrating through the upper end surface and the lower end surface is coaxially fixed on the cylindrical water tank 301; the second air duct 303 is communicated with the flow distribution core barrel 6.
Wherein the shunt core barrel 6 is a closed cavity structure with two truncated cone-shaped ends and a cylindrical center.
The isolation support 7 comprises a U-shaped clamping plate 701 and a T-shaped inserting block 702; two positioning pore plates 703 pointing to the outside are fixed at two ends of the U-shaped clamping plate 701; two side walls of the U-shaped clamping plate 701 are provided with rectangular slots 704 which are in splicing fit with the T-shaped inserting blocks 702; two positioning round holes 705 matched with the two positioning hole plates 703 are formed at two ends of the same side surface of the T-shaped inserting block 702.
The single-way supercharger 8 comprises a cuboid valve body 801 with a square channel at the center cross section and a rectangular valve block rod 802 in sliding fit with the channel of the cuboid valve body 801; two water inlet holes 803 are symmetrically formed in two end portions of one side surface of the rectangular valve body 801; the two water inlet holes 803 are respectively communicated with the two heating pipes 502; a water outlet hole 804 is formed in the middle of the other side surface of the rectangular valve body 801; the water outlet hole 804 is communicated with the hot water outlet pipe 105;
the rectangular valve block rod 802 is provided with quadrangular frustum 805 at both ends;
the middle two thirds parts of two ends of the internal channel of the cuboid valve body 801 are provided with quadrangular pyramid grooves 806 matched with the quadrangular pyramid platforms 805;
the upper and lower end faces of the rectangular valve block rod 802 and the side face facing the water outlet hole 804 are provided with symmetrically arranged L-shaped flow guide channels 807.
When the device is used, the exhaust pipe 103 is connected with a waste gas pipeline, the water inlet pipe 104 is connected with a water inlet pump, the hot water outlet pipe 105 is connected with a hot water storage device, the combustion machine 2 is started, combustion flame is firstly sprayed to the two heating pipes 502 of the double-pipe single-way booster heater 5, then the flame is shunted to the peripheral side under the central shunting action of the shunting core barrel 6, the flame synchronously and upwards surges from the inner side and the outer side of the direct-current spiral coil 4 to uniformly heat the direct-current spiral coil 4, finally high-temperature flue gas is collected at the upper end part of the shunting core barrel 6, and heat flow passes through the cylindrical water tank 301 from the first air guide pipe 302 and then is exhausted from the exhaust pipe 103; the whole heating process comprises primary heating, middle heating and final heating, wherein the primary heating waste heat heater 3 is in large-area contact with high-temperature flue gas at the top, heat is conducted to make-up water which just enters the cylindrical water tank 301, and the water which enters the boiler is preheated, so that the energy utilization rate is improved; the middle section heating water flows downwards along the direct current spiral coil 4, in the flowing process, the direct current spiral coil 4 is positioned between the shunt core barrel 6 and the inner wall of the boiler 1, the burning flame is in an annular barrel shape and upwards heats the direct current spiral coil 4, the temperature of the water in the direct current spiral coil 4 is gradually increased in the downward flowing process, the heating amount is gradually increased, the water is boiled before reaching the lower end, and the temperature in the whole process is quickly heated; when boiled water reaches the double-pipe single-way pressurizing heater 5 at the end, when hot water flows through the two heating pipes 502 in a single direction, the hot water in the pipes is continuously heated, the rectangular valve block rod 802 is pushed to release pressure after the pressure intensity is increased, high-pressure hot water is discharged from the hot water outlet pipe 105 to a hot water storage device to be stored or directly used, the two heating pipes 502 are alternately heated and discharged outwards, and the hot water is finally pressurized to improve the heat energy.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A straight-flow coil pipe type high-pressure hot water boiler comprises a boiler (1) which is vertically arranged and a burner (2) which is arranged below the boiler (1); four supporting legs (101) are arranged below the boiler (1); boiler (1) below is opened has and is sprayed combustion tube complex round hole (102) with combustor (2), its characterized in that:
the boiler (1) is internally provided with a waste heat heater (3), a direct current spiral coil (4) and a double-pipe single-way booster heater (5) from top to bottom in sequence; a shunt core barrel (6) is coaxially arranged below the waste heat heater (3); the shunt core barrel (6) is arranged inside the direct current spiral coil (4); the straight-flow spiral coil (4) is connected with the inner wall of the boiler (1) through a plurality of isolation supporting pieces (7);
an exhaust pipe (103) penetrates through and is fixed on the side surface of the periphery of the upper end of the boiler (1); a water inlet pipe (104) communicated with the waste heat heater (3) penetrates through and is fixed on the circumferential side surface of the upper end part of the boiler (1); a hot water outlet pipe (105) communicated with the output end of the double-pipe single-way booster heater (5) penetrates through and is fixed on the peripheral side surface of the lower end part of the boiler (1);
the upper end of the direct current spiral coil (4) is communicated with the waste heat heater (3); the lower end of the direct current spiral coil (4) is communicated with the water inlet end of the double-pipe single-way booster heater (5); the double-pipe single-way booster heater (5) comprises a three-way pipe (501) communicated with the lower end of the direct-current spiral coil (4), two heating pipes (502) connected with the other two ends of the three-way pipe (501) and a single-way booster (8) arranged at the other ends of the two heating pipes (502); a DCV one-way valve (9) is arranged at the joint of the three-way pipe (501) and the heating pipe (502); the single-way supercharger (8) comprises a cuboid valve body (801) with a square channel at the central cross section and a rectangular valve block rod (802) in sliding fit with the channel of the cuboid valve body (801); two water inlet holes (803) are symmetrically formed in two end parts of one side surface of the cuboid valve body (801); the two water inlet holes (803) are respectively communicated with the two heating pipes (502); a water outlet hole (804) is formed in the middle of the other side surface of the cuboid valve body (801); the water outlet hole (804) is communicated with the hot water outlet pipe (105);
the rectangular valve block rod (802) is provided with quadrangular frustum (805) at both ends;
the middle two thirds parts of two ends of the internal channel of the cuboid valve body (801) are provided with quadrangular pyramid grooves (806) matched with the quadrangular pyramid platforms (805);
the upper end surface and the lower end surface of the rectangular valve block rod (802) and the side surface facing the water outlet hole (804) are provided with symmetrically arranged L-shaped flow guide channels (807).
2. A continuous coil type high pressure hot water boiler according to claim 1, wherein an insulating layer (10) is installed on the circumferential surface of said boiler (1).
3. A straight-coil high-pressure hot water boiler according to claim 1, wherein said waste heat heater (3) comprises a hollow cylindrical water tank (301); first air ducts (302) penetrating through the upper end face and the lower end face are uniformly distributed and fixed on the cylindrical water tank (301); a second air duct (303) penetrating through the upper end face and the lower end face is coaxially fixed on the cylindrical water tank (301); the second air duct (303) is communicated with the shunt core barrel (6).
4. The straight coil type high pressure hot water boiler according to claim 1, wherein the divided core barrel (6) has a closed cavity structure having both ends in a truncated cone shape and a cylindrical center.
5. A straight-coil high-pressure hot water boiler according to claim 1, wherein said insulating support (7) comprises a U-shaped clamping plate (701), a T-shaped insert (702); two ends of the U-shaped clamping plate (701) are respectively fixed with a positioning pore plate (703) pointing to the outside; two side walls of the U-shaped clamping plate (701) are provided with rectangular slots (704) which are in splicing fit with the T-shaped inserting blocks (702); two positioning round holes (705) matched with the two positioning hole plates (703) are formed in two ends of the same side face of the T-shaped inserting block (702).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010885175.0A CN112050463B (en) | 2020-08-28 | 2020-08-28 | Straight-flow coil pipe type high-pressure hot water boiler |
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| CN202010885175.0A CN112050463B (en) | 2020-08-28 | 2020-08-28 | Straight-flow coil pipe type high-pressure hot water boiler |
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| CN112050463A CN112050463A (en) | 2020-12-08 |
| CN112050463B true CN112050463B (en) | 2021-09-10 |
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| CN114111032B (en) * | 2021-12-06 | 2023-03-24 | 中船九江锅炉有限公司 | Hot water boiler system with hot water buffer tank |
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| CN201517638U (en) * | 2009-08-13 | 2010-06-30 | 蒋建均 | Guiding pressure release valve |
| CN201802912U (en) * | 2010-03-26 | 2011-04-20 | 厦门市易洁卫浴有限公司 | Water changeover valve structure |
| CN203572010U (en) * | 2013-09-25 | 2014-04-30 | 马双奇 | Novel multipurpose energy-saving boiler |
| CN103629807A (en) * | 2013-11-21 | 2014-03-12 | 镇江市博林光电科技有限公司 | Plunger water heater |
| CN203744515U (en) * | 2014-03-08 | 2014-07-30 | 马文亮 | Fast energy saving multi-heat-source heating system |
| CN111550922A (en) * | 2020-05-13 | 2020-08-18 | 山西浩泉节能环保工程有限公司 | Horizontal condensing gas normal pressure hot water boiler |
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| CN112050463A (en) | 2020-12-08 |
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