CN205351773U - Phase transition heat transfer hot water unit - Google Patents
Phase transition heat transfer hot water unit Download PDFInfo
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- CN205351773U CN205351773U CN201620095529.0U CN201620095529U CN205351773U CN 205351773 U CN205351773 U CN 205351773U CN 201620095529 U CN201620095529 U CN 201620095529U CN 205351773 U CN205351773 U CN 205351773U
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Abstract
The utility model provides a phase transition heat transfer hot water unit, it includes establish furnace's boiler body in one, the furnace gate of boiler body disposes outward and still to be provided with the vacuum cavity that fills hot media water inside the boiler body to the combustor that sprays the combustion flame in the furnace the polyphone has many one end intercommunication furnace, other end intercommunication exhaust stacks's flue gas heat transfer calandria in the vacuum cavity, boiler body upper portion be provided with with the vacuum cavity in form the built -in heat exchanger that saturated steam carries out the heat exchange after the hot media water heating, cold water heat transfer runner that should built -in heat exchanger, wherein the hot water export of one end feed through in hot water and connect the exit tube, other end cooling water inlet feeds through and inserts the pipe in cold water, cooling water inlet and the cold water of built -in heat exchanger insert and still be provided with an external gas gas heater between the pipe, the flue gas heat transfer calandria that connects out from built -in heat exchanger connect in external gas gas heater to, this flue gas air interchanger connects in the exhaust stacks of peripheral hardware after connecing out the flue gas pipe, it has the structure forms rationally, corrosion -resistant, has improved heat exchange coefficient greatly, reduces exhaust gas temperature, characteristics such as thermal efficiency height.
Description
Technical field
The utility model relates to a kind of phase-change heat-exchange Hot water units for providing daily life hot water, belong to boiler hot-water technical field.
Background technology
Traditional drum formula hot-water boiler, water in its boiler is by the forced circulation of water pump and external UNICOM, when starting, 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 include burner hearth and smoke pipe) within a very long time in body of heater, makes boiler be susceptible to corrosion phenomenon；
Traditional drum formula hot-water boiler, the circulation of its water is to be circulated by water pump, it is easy to hydraulic equilibrium detuning phenomena occurs；Owing to tradition drum boiler adopts three return structures substantially, owing to the temperature and pressure of the 3rd backhaul flue gas Yu stove water are less than normal, the coefficient of heat transfer is smaller, compares waste steel.
Summary of the invention
The purpose of this utility model is in that the deficiency overcoming prior art to exist, and provides a kind of structure composition rationally, corrosion-resistant, substantially increases the coefficient of heat transfer, reduces exhaust gas temperature, the phase-change heat-exchange Hot water units that the thermal efficiency is high.
The purpose of this utility model completes by following technical solution, a kind of phase-change heat-exchange Hot water units, it includes the boiler body setting burner hearth in, being configured with outside the fire door of described boiler body can to the combustor of spray combustion flame in burner hearth, it is additionally provided with the vacuum cavity of filling heat medium water inside boiler body, described vacuum cavity is connected with the flue gas heat exchange comb of many one end connection burner hearths, other end connection blowdown stack；Described boiler body top is provided with formation saturated vapor after heating with heat medium water in vacuum cavity and carries out the built-in heat exchanger of heat exchange, 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 additionally provided with an external flue gas heat-exchange unit between cooling water inlet and the cold water access tube of described built-in heat exchanger, the flue gas heat exchange comb picked out from built-in heat exchanger is connected to described external flue gas heat-exchange unit, and is connected to the blowdown stack of peripheral hardware after picking out fume pipe from this flue gas rebreather；Described external flue gas heat-exchange unit is provided with current heat exchange coil, 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 connection watering of current heat exchange coil.
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 connection vacuum pump of vacuum cavity, vacuum meter and relief valve on the top of described built-in heat exchanger.
This utility model compared with prior art, has a characteristic that
One be it utilize saturated vapor and outer welding system phase-change heat-exchange that heat medium water vaporization is formed, there is coefficient of heat transfer height, be absent from oxygen corrosion, the problem of flue gas condensing burn into hydraulic equilibrium imbalance；
Two is replace the 3rd backhaul smoke pipe with tubular heat exchanger, and the coefficient of heat transfer is big；
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.
This utility model 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 utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in detail: shown in Fig. 1, a kind of phase-change heat-exchange Hot water units described in the utility model, it includes the boiler body 2 setting burner hearth 1 in, 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 includes existing fuel oil or gas engine, the internal vacuum cavity 5 being additionally provided with filling heat medium water 4 of boiler body 2, is connected with the flue gas heat exchange comb 7 of many one end connection burner hearths 1, other end connection blowdown stack 6 in described vacuum cavity 5；Described boiler body 2 top is provided with formation saturated vapor after heating with heat medium water in vacuum cavity 5 and carries out the built-in heat exchanger 8 of heat exchange, 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 it is additionally provided with between cooling water inlet and the cold water access tube 11 of described built-in heat exchanger 8, 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 is connected to the blowdown stack 6 of peripheral hardware after picking out fume pipe from this flue gas rebreather 12；Described external flue gas heat-exchange unit 12 is provided with current heat exchange coil 13, 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 connection watering of current heat exchange coil 13.
In boiler body 2 described in the utility model, 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 connection vacuum pump 14 of vacuum cavity 5, vacuum meter 15 and relief valve 16 on the top of described built-in heat exchanger 8.
Phase change heat exchange hot water boiler described in the utility model is by boiler evacuation is processed, when flame is when stove chamber inner combustion, the heat medium water of boiler internal absorbs the heat of flame combustion release, heat medium water temperature can raise and be formed the saturated vapor of certain pressure in the short period of time, the saturated vapor heat exchange that external heat is formed with heat medium water evaporation by built-in heat exchanger, heat in boiler is taken away for external, this heat exchange mode can allow heating agent coolant-temperature gage in burner hearth rise to more than 60 DEG C within a short period of time, burner hearth internal generation condensation can be avoided, 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 technique, shell and tube heat retrieving apparatus flue gas transversal flow heat exchanger tube, improve while efficiency and also save steel consumption, return water temperature lower than uniform temperature when can realize the condensation of real meaning；There is boiler internal in phase change heat exchange hot water boiler heat medium water, be not involved 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 includes the boiler body setting burner hearth in, being configured with outside the fire door of described boiler body can to the combustor of spray combustion flame in burner hearth, it is additionally provided with the vacuum cavity of filling heat medium water inside boiler body, described vacuum cavity is connected with the flue gas heat exchange comb of many one end connection burner hearths, other end connection blowdown stack；Described boiler body top is provided with formation saturated vapor after heating with heat medium water in vacuum cavity and carries out the built-in heat exchanger of heat exchange, 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 additionally 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 is connected to the blowdown stack of peripheral hardware after picking out fume pipe from this flue gas rebreather；Described external flue gas heat-exchange unit is provided with current heat exchange coil, 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 connection watering of current heat exchange coil.
3. phase-change heat-exchange Hot water units according to claim 1 and 2, it is characterised 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 connection vacuum pump of vacuum cavity, vacuum meter and relief valve on the top of described built-in heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095529.0U CN205351773U (en) | 2016-02-01 | 2016-02-01 | Phase transition heat transfer hot water unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095529.0U CN205351773U (en) | 2016-02-01 | 2016-02-01 | Phase transition heat transfer hot water unit |
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| Publication Number | Publication Date |
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| CN205351773U true CN205351773U (en) | 2016-06-29 |
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| CN201620095529.0U Active CN205351773U (en) | 2016-02-01 | 2016-02-01 | Phase transition heat transfer hot water unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571130A (en) * | 2016-02-01 | 2016-05-11 | 力聚热力设备科技有限公司 | Phase change heat exchange hot water machine set |
-
2016
- 2016-02-01 CN CN201620095529.0U patent/CN205351773U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571130A (en) * | 2016-02-01 | 2016-05-11 | 力聚热力设备科技有限公司 | Phase change heat exchange hot water machine set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181008 Address after: 313200 No. 150, Sheng Ye street, Wu Kang Town, Deqing County, Huzhou, Zhejiang. Patentee after: Zhejiang Li Ju thermal energy equipment Co., Ltd. Address before: 313000 No. 150, Sheng Ye street, Wu Kang Town, Deqing County, Huzhou, Zhejiang. Patentee before: LIJU THERMAL POWER EQUIPMENT CO., LTD. |
|
| TR01 | Transfer of patent right |