CN105571130A - Phase change heat exchange hot water machine set - Google Patents

Phase change heat exchange hot water machine set Download PDF

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Publication number
CN105571130A
CN105571130A CN201610065557.2A CN201610065557A CN105571130A CN 105571130 A CN105571130 A CN 105571130A CN 201610065557 A CN201610065557 A CN 201610065557A CN 105571130 A CN105571130 A CN 105571130A
Authority
CN
China
Prior art keywords
heat exchange
heat
heat exchanger
boiler
flue gas
Prior art date
Application number
CN201610065557.2A
Other languages
Chinese (zh)
Inventor
赵荣新
王永强
Original Assignee
力聚热力设备科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 力聚热力设备科技有限公司 filed Critical 力聚热力设备科技有限公司
Priority to CN201610065557.2A priority Critical patent/CN105571130A/en
Publication of CN105571130A publication Critical patent/CN105571130A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H7/00Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release
    • F24H7/005Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release with fluid fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H7/00Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release
    • F24H7/02Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid, e.g. air, water
    • F24H7/025Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid, e.g. air, water with fluid fuel
    • F24H7/0266Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid, e.g. air, water with fluid fuel the transfer fluid being a liquid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H9/00Details
    • F24H9/18Arrangement or mounting of grates, burners, or heating elements
    • F24H9/1809Arrangement or mounting of grates, burners, or heating elements for water heaters
    • F24H9/1836Arrangement or mounting of grates, burners, or heating elements for water heaters fluid combustible heating means

Abstract

The invention discloses a phase change heat exchange hot water machine set. The phase change heat exchange hot water machine set comprises a boiler body which is internally provided with a hearth. A boiler door of the boiler body is externally provided with a burner which can spray combustion flame to the interior of the hearth. The boiler body is further internally provided with a vacuum cavity filled with heating medium water. A plurality of smoke heat exchange exhaust pipes are connected in series in the vacuum cavity, one ends of the smoke heat exchange exhaust pipes communicate with the hearth, and the other ends of the smoke heat exchange exhaust pipes communicate with a blowdown stack. The upper portion of the boiler body is provided with an internal heat exchanger, and after the heating medium water in the vacuum cavity is heated, saturated steam is formed and subjected to heat exchange through the heat exchanger. A hot water outlet of one end of a cold water heat exchange runner of the internal heat exchanger communicates with a hot water outlet pipe, and a cold water inlet of the other end of the cold water heat exchange runner of the internal heat exchanger communicates with a cold water inlet pipe. An external smoke heat exchanger is further arranged between the cold water inlet of the internal heat exchanger and the cold water inlet pipe, the smoke heat exchange exhaust pipes which are connected with and extend out from the internal heat exchanger are connected to the external smoke heat exchanger, and the smoke heat exchange exhaust pipes are connected to the external blowndown stack after being connected with and extending out from the external smoke heat exchanger. The phase change heat exchange hot water machine set has the characteristics that the structure composition is reasonable, the effect of corrosion resistance is achieved, the heat exchange coefficient is improved greatly, the exhaust smoke temperature is lowered, and the heat efficiency is high.

Description

A kind of phase-change heat-exchange Hot water units

Technical field

What the present invention relates to is a kind of for providing the phase-change heat-exchange Hot water units of daily life hot water, belongs to boiler hot-water technical field.

Background technology

Traditional drum formula hot-water boiler, water in its boiler is forced circulation by water pump and external UNICOM, when startup, boiler internal heat can be taken away by the external world always, in boiler, stove coolant-temperature gage can be long-time lower than steam dew-point temperature in flue gas, condensation that flue gas (can comprise burner hearth and smoke pipe) within a very long time in body of heater, makes boiler easily corrosion phenomenon occur;

Traditional drum formula hot-water boiler, its water circulation is circulated by water pump, easily hydraulic equilibrium detuning phenomena occurs; Because traditional drum boiler adopts three return structures substantially, because the temperature and pressure of the 3rd backhaul flue gas and stove water are less than normal, the coefficient of heat transfer is smaller, compares waste steel.

Summary of the invention

The object of the invention is to the deficiency overcoming prior art existence, and provide a kind of structure to form rationally, corrosion-resistant, substantially increase the coefficient of heat transfer, reduce exhaust gas temperature, the phase-change heat-exchange Hot water units that the thermal efficiency is high.

The object of the invention is to have come by following technical solution, a kind of phase-change heat-exchange Hot water units, it comprises in one the boiler body establishing burner hearth, being configured with outside the fire door of described boiler body can to the combustor of spray combustion flame in burner hearth, boiler body inside is also provided with the vacuum cavity of filling heat medium water, is connected with the flue gas heat exchange comb that many one end are communicated with burner hearth, the other end is communicated with blowdown stack in described vacuum cavity; Described boiler body top forms the built-in heat exchanger that saturated vapor carries out heat exchange after being provided with and heating with heat medium water in vacuum cavity, the cold water heat exchange runner of this built-in heat exchanger, wherein the hot water outlet of one end is communicated in hot water and picks out pipe, and other end cooling water inlet is communicated in cold water access tube.

As preferably: be also provided with an external flue gas heat-exchange unit between the cooling water inlet of described built-in heat exchanger and cold water access tube, the flue gas heat exchange comb picked out from built-in heat exchanger is connected to described external flue gas heat-exchange unit, and from being connected to the blowdown stack of peripheral hardware after this flue gas rebreather picks out fume pipe; Be provided with current heat exchange coil in described external flue gas heat-exchange unit, and the effluent pipe mouth of current heat exchange coil is communicated in the cooling water inlet of described built-in heat exchanger by cold water access tube, the water inlet pipe mouth of current heat exchange coil is communicated with watering.

As preferably: in described boiler body, in vacuum cavity, lower, transverse is connected with many flue gas heat exchange combs, and the flue gas port that enters of this flue gas heat exchange comb is positioned at burner hearth inner bottom part; Described built-in heat exchanger is transversely arranged on the vacuum cavity internal upper part on boiler body top, is provided with the vavuum pump, vacuum meter and the safety valve that are communicated with vacuum cavity on the top of described built-in heat exchanger.

The present invention compared with prior art, has following features:

One be it utilize heat medium water to vaporize to be formed saturated vapor and outer welding system phase-change heat-exchange, have the coefficient of heat transfer high, there is not oxygen corrosion, problem that flue gas condensing burn into hydraulic equilibrium is lacked of proper care;

Two is replace the 3rd backhaul smoke pipe with tubular heat exchanger, and the coefficient of heat transfer is large;

Three be return water temperature below condensation temperature, condensation truly can be realized;

Four is cast out the 3rd backhaul smoke pipe, reduces body of heater overall dimensions, reduces the requirement to transport.

The present invention has structure composition rationally, corrosion-resistant, substantially increases the coefficient of heat transfer, reduces exhaust gas temperature, thermal efficiency high.

Accompanying drawing explanation

Fig. 1 is structural representation of the present invention.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention will be described in detail: shown in Fig. 1, a kind of phase-change heat-exchange Hot water units of the present invention, it comprises in one the boiler body 2 establishing burner hearth 1, being configured with outside the fire door of described boiler body 2 can to the combustor 3 of spray combustion flame in burner hearth 1, this combustor 3 comprises existing fuel oil or gas engine, boiler body 2 inside is also provided with the vacuum cavity 5 of filling heat medium water 4, is connected with the flue gas heat exchange comb 7 that many one end are communicated with burner hearth 1, the other end is communicated with blowdown stack 6 in described vacuum cavity 5; Described boiler body 2 top forms the built-in heat exchanger 8 that saturated vapor carries out heat exchange after being provided with and heating with heat medium water in vacuum cavity 5, the cold water heat exchange runner 9 of this built-in heat exchanger 8, wherein the hot water outlet of one end is communicated in hot water and picks out pipe 10, and other end cooling water inlet is communicated in cold water access tube 11.

Shown in figure, an external flue gas heat-exchange unit 12 is also provided with between the cooling water inlet of described built-in heat exchanger 8 and cold water access tube 11, the flue gas heat exchange comb 7 picked out from built-in heat exchanger 8 is connected to described external flue gas heat-exchange unit 12, and from being connected to the blowdown stack 6 of peripheral hardware after this flue gas rebreather 12 picks out fume pipe; Be provided with current heat exchange coil 13 in described external flue gas heat-exchange unit 12, and the effluent pipe mouth of current heat exchange coil 13 is communicated in the cooling water inlet of described built-in heat exchanger 8 by cold water access tube 11, the water inlet pipe mouth of current heat exchange coil 13 is communicated with watering.

In boiler body 2 of the present invention, in vacuum cavity 5, lower, transverse is connected with many flue gas heat exchange combs 7, and the flue gas port that enters of this flue gas heat exchange comb 7 is positioned at burner hearth 1 inner bottom part; Described built-in heat exchanger 8 is transversely arranged on vacuum cavity 5 internal upper part on boiler body 2 top, is provided with the vavuum pump 14, vacuum meter 15 and the safety valve 16 that are communicated with vacuum cavity 5 on the top of described built-in heat exchanger 8.

Phase change heat exchange hot water boiler of the present invention is by vacuumizing process to boiler, when flame is in burner hearth combustion, the heat medium water of boiler internal absorbs the heat of flame combustion release, heat medium water temperature can raise in the short period of time and form the saturated vapor of certain pressure, external heat evaporates the saturated vapor heat exchange formed by built-in heat exchanger and heat medium water, heat in boiler is taken away for external, this heat exchange mode can allow heat medium water temperature in burner hearth rise to more than 60 DEG C within a short period of time, can avoid burner hearth inside that condensation occurs, efficiently solve boiler condensation etching problem.

Phase change heat exchange hot water boiler adopts the version of two backhauls+heat retrieving apparatus, cast out the 3rd backhaul smoke pipe of conventional chamber combusting boiler, get up to replace with waste heat, simplify processing technology, shell and tube heat retrieving apparatus flue gas transversal flow heat exchanger tube,, also save steel consumption while improving efficiency, the condensation of real meaning can be realized under return water temperature be lower than uniform temperature condition; There is boiler internal in phase change heat exchange hot water boiler heat medium water, do not participate in external circulation always, solves the oxygen corrosion problem of boiler; Phase change heat exchange hot water boiler utilizes the phase transformation of saturated vapor and extraneous water heat exchange, substantially increases the coefficient of heat transfer.

Claims (3)

1. a phase-change heat-exchange Hot water units, it comprises in one the boiler body establishing burner hearth, being configured with outside the fire door of described boiler body can to the combustor of spray combustion flame in burner hearth, boiler body inside is also provided with the vacuum cavity of filling heat medium water, is connected with the flue gas heat exchange comb that many one end are communicated with burner hearth, the other end is communicated with blowdown stack in described vacuum cavity; Described boiler body top forms the built-in heat exchanger that saturated vapor carries out heat exchange after being provided with and heating with heat medium water in vacuum cavity, the cold water heat exchange runner of this built-in heat exchanger, wherein the hot water outlet of one end is communicated in hot water and picks out pipe, and other end cooling water inlet is communicated in cold water access tube.
2. phase-change heat-exchange Hot water units according to claim 1, it is characterized in that between the cooling water inlet of described built-in heat exchanger and cold water access tube, being also provided with an external flue gas heat-exchange unit, the flue gas heat exchange comb picked out from built-in heat exchanger is connected to described external flue gas heat-exchange unit, and from being connected to the blowdown stack of peripheral hardware after this flue gas rebreather picks out fume pipe; Be provided with current heat exchange coil in described external flue gas heat-exchange unit, and the effluent pipe mouth of current heat exchange coil is communicated in the cooling water inlet of described built-in heat exchanger by cold water access tube, the water inlet pipe mouth of current heat exchange coil is communicated with watering.
3. phase-change heat-exchange Hot water units according to claim 1 and 2, it is characterized in that in described boiler body, in vacuum cavity, lower, transverse is connected with many flue gas heat exchange combs, and the flue gas port that enters of this flue gas heat exchange comb is positioned at burner hearth inner bottom part; Described built-in heat exchanger is transversely arranged on the vacuum cavity internal upper part on boiler body top, is provided with the vavuum pump, vacuum meter and the safety valve that are communicated with vacuum cavity on the top of described built-in heat exchanger.
CN201610065557.2A 2016-02-01 2016-02-01 Phase change heat exchange hot water machine set CN105571130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610065557.2A CN105571130A (en) 2016-02-01 2016-02-01 Phase change heat exchange hot water machine set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610065557.2A CN105571130A (en) 2016-02-01 2016-02-01 Phase change heat exchange hot water machine set

Publications (1)

Publication Number Publication Date
CN105571130A true CN105571130A (en) 2016-05-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610065557.2A CN105571130A (en) 2016-02-01 2016-02-01 Phase change heat exchange hot water machine set

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105928205A (en) * 2016-05-24 2016-09-07 西安交通大学 Quick-heating type electric water heater based on vacuum phase-change principle
CN108019929A (en) * 2017-11-28 2018-05-11 崔秀萍 A kind of boiler heating system and its method based on heat medium water

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202141195U (en) * 2011-07-05 2012-02-08 浙江上能锅炉有限公司 Vacuum hot water boiler with waste heat recycling device
CN203687366U (en) * 2014-02-21 2014-07-02 暖尔特热力设备(德清)有限公司 Phase-inversion heat exchanging water heating boiler
CN204026997U (en) * 2014-08-11 2014-12-17 魏田艳 A tractor serves several purposes temperature regulates vacuum hot water unit
CN204612167U (en) * 2015-03-16 2015-09-02 山西吉祥锅炉制造有限公司 A kind of vacuum hot water boiler of built-in condenser
CN205351773U (en) * 2016-02-01 2016-06-29 力聚热力设备科技有限公司 Phase transition heat transfer hot water unit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202141195U (en) * 2011-07-05 2012-02-08 浙江上能锅炉有限公司 Vacuum hot water boiler with waste heat recycling device
CN203687366U (en) * 2014-02-21 2014-07-02 暖尔特热力设备(德清)有限公司 Phase-inversion heat exchanging water heating boiler
CN204026997U (en) * 2014-08-11 2014-12-17 魏田艳 A tractor serves several purposes temperature regulates vacuum hot water unit
CN204612167U (en) * 2015-03-16 2015-09-02 山西吉祥锅炉制造有限公司 A kind of vacuum hot water boiler of built-in condenser
CN205351773U (en) * 2016-02-01 2016-06-29 力聚热力设备科技有限公司 Phase transition heat transfer hot water unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105928205A (en) * 2016-05-24 2016-09-07 西安交通大学 Quick-heating type electric water heater based on vacuum phase-change principle
CN105928205B (en) * 2016-05-24 2019-04-30 西安交通大学 A kind of quick-heating electric water heater based on phase transition of vacuum principle
CN108019929A (en) * 2017-11-28 2018-05-11 崔秀萍 A kind of boiler heating system and its method based on heat medium water

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Application publication date: 20160511

RJ01 Rejection of invention patent application after publication