CN205480931U - Compound heat pipe formula flue gas cryrogenic oxygen -eliminating device - Google Patents
Compound heat pipe formula flue gas cryrogenic oxygen -eliminating device Download PDFInfo
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- CN205480931U CN205480931U CN201620147452.7U CN201620147452U CN205480931U CN 205480931 U CN205480931 U CN 205480931U CN 201620147452 U CN201620147452 U CN 201620147452U CN 205480931 U CN205480931 U CN 205480931U
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- heat pipe
- pipe
- composite heat
- eliminating device
- oxygen
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Abstract
The utility model discloses a compound heat pipe formula flue gas cryrogenic oxygen -eliminating device belongs to boiler oxygen -eliminating device technical field. The technical scheme of the utility model main points do: an inside packing has the liquid level between the oxygen -eliminating device heating pipe that compound heat pipe formula flue gas cryrogenic oxygen -eliminating device is equipped with compound heat pipe on exhaust pipe, should compound heat pipe encircle in exhaust pipe the outside and exhaust pipe sealing connection, be equipped with fin formula heat pipe on the inboard exhaust pipe of compound heat pipe, the oxygen -eliminating device heating pipe sets up in exhaust pipe's upper portion, this oxygen -eliminating device heating pipe is connected with the oxygen -eliminating device water tank after running through compound heat pipe, the complex heat pipe and a liquid heat -conducting medium that between the fin formula heat pipe. The utility model has the advantages of simple and reasonable structure, the running cost is lower, has the better value of using widely.
Description
Technical field
This utility model belongs to boiler feed technical field, is specifically related to a kind of compound thermal tubular type flue gas deep cooling oxygen-eliminating device.
Background technology
In boiler feedwater, dissolved oxygen can cause the corrosion of boiler and relevant device, in order to prevent the generation of this phenomenon, the oxygen-eliminating device generally used is that body seals, evacuation or heating make the water in oxygen-eliminating device reach boiling point, dissolved oxygen will escape from water, thus reaches the purpose of boiler supply water deaerating, and the design comparison of above-mentioned boiler feed is complicated, operating cost is the highest, and popularization and application are subject to certain restrictions.
Summary of the invention
This utility model solves the technical problem that and there is provided the compound thermal tubular type flue gas deep cooling oxygen-eliminating device that a kind of deaerating effect is preferable and operating cost is cheap, this oxygen-eliminating device does not consume steam, utilize the waste heat of boiler exhaust gas flue gas and the latent heat of phase change of steam that soft water is heated, remove the dissolved oxygen in boiler feedwater.
nullThis utility model adopts the following technical scheme that for solving above-mentioned technical problem，A kind of compound thermal tubular type flue gas deep cooling oxygen-eliminating device，Including smoke discharging pipe、Composite heat pipe、Add heat pipe and deaerator storage tank，Described smoke discharging pipe is provided with composite heat pipe，This composite heat pipe is surrounded on the outside of smoke discharging pipe and is tightly connected with smoke discharging pipe，Smoke discharging pipe inside composite heat pipe is provided with finned heat pipe，This finned heat pipe is radially distributed in the upper half side of smoke discharging pipe and to be tightly connected with smoke discharging pipe，Finned heat pipe inside smoke discharging pipe is provided with heat exchange fin，The inside of finned heat pipe is filled with liquid thermal conductivity media，Add heat pipe and be arranged at the top of smoke discharging pipe，This adds after heat pipe runs through composite heat pipe and is connected with deaerator storage tank，The top of deaerator storage tank is provided with oxygen-eliminating device exhaustor，The sidewall of deaerator storage tank is provided with oxygen-eliminating device outlet pipe，The inside of composite heat pipe is filled with liquid level between the liquid thermal conductivity media adding between heat pipe and finned heat pipe，The top of composite heat pipe is provided with evacuation adapter and pressure vacuum gauge.
Further preferably, described composite heat pipe includes high temperature composite heat pipe and low temperature composite heat pipe, this high temperature composite heat pipe and low temperature composite heat pipe are surrounded on the outside of smoke discharging pipe successively along flue gas airintake direction and are tightly connected with smoke discharging pipe, and described adding after heat pipe sequentially passes through low temperature composite heat pipe and high temperature composite heat pipe is connected with deaerator storage tank.
Further preferably, boiling temperature liquid thermal conductivity media between 105-110 DEG C it is filled with inside described high temperature composite heat pipe, boiling temperature liquid thermal conductivity media between 115-120 DEG C it is filled with inside finned heat pipe I inside high temperature composite heat pipe, it is filled with boiling temperature liquid thermal conductivity media between 50-55 DEG C inside low temperature composite heat pipe, inside the finned heat pipe II inside low temperature composite heat pipe, is filled with boiling temperature liquid thermal conductivity media between 70-75 DEG C.
Further preferably, the outside of described composite heat pipe is provided with rock wool heat-preservation layer.
Further preferably, the shell material of described finned heat pipe and composite heat pipe is respectively copper, aluminum, carbon steel, rustless steel or steel alloy, and described liquid thermal conductivity media is one or more in water, conduction oil, methanol, ethanol or acetone.
Further preferably, described smoke discharging pipe is ND steel flue gas duct.
Compound thermal tubular type flue gas deep cooling oxygen-eliminating device of the present utility model, flue gas is flowed to outlet flue by the smoke inlet of smoke discharging pipe, the temperature of flue gas is gradually lowered from high to low, this oxygen-eliminating device does not consume steam, utilize the waste heat of boiler exhaust gas and the latent heat of phase change of steam that the soft water in boiler heating pipes is heated, soft water enters from adding heat pipe water supplement port, gradually heat up within adding heat pipe, to deaerator storage tank water outlet, exit water temperature can reach more than 100 DEG C, deoxygenation rate reaches more than 99%, boiler oxygen corrosion can be effectively prevented, the service life of prolonged boiler, the exhaust gas temperature of boiler can be down to about 70 DEG C by this oxygen-eliminating device simultaneously, improve boiler efficiency about 10%, reduce fuel consumption about 12%.It addition, this compound thermal tubular type flue gas deep cooling Deaerator Structure advantages of simple, operating cost is relatively low, has preferable popularizing value.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the Fig. 1 sectional view along A-A direction.
In figure: 1, smoke discharging pipe, 2, heat pipe is added, 3, deaerator storage tank, 4, high temperature composite heat pipe, 5, low temperature composite heat pipe, 6, finned heat pipe II, 7, oxygen-eliminating device exhaustor, 8, oxygen-eliminating device outlet pipe, 9, evacuation adapter, 10, pressure vacuum gauge, 11, rock wool heat-preservation layer, 12, finned heat pipe I.
Detailed description of the invention
Particular content of the present utility model is described in detail in conjunction with accompanying drawing.nullAs shown in Figure 1-2，A kind of compound thermal tubular type flue gas deep cooling oxygen-eliminating device，Including smoke discharging pipe 1、Add heat pipe 2 and deaerator storage tank 3，On smoke discharging pipe 1, high temperature composite heat pipe 4 and low temperature composite heat pipe 5 it is sequentially provided with along flue gas airintake direction，This high temperature composite heat pipe 4 and low temperature composite heat pipe 5 are surrounded on the outside of smoke discharging pipe 1 respectively and are tightly connected with smoke discharging pipe 1，Finned heat pipe I 12 and finned heat pipe II 6 it is respectively equipped with on smoke discharging pipe 1 inside high temperature composite heat pipe 4 and low temperature composite heat pipe 5，Finned heat pipe I 12 and finned heat pipe II 6 is radially distributed in the upper half side of smoke discharging pipe 1 and to be tightly connected with smoke discharging pipe 1，It is respectively equipped with heat exchange fin on finned heat pipe I 12 inside smoke discharging pipe 1 and finned heat pipe II 6，Finned heat pipe I 12 is filled with, with the inside of finned heat pipe II 6, the liquid thermal conductivity media that liquid level is concordant with smoke discharging pipe 1，Add heat pipe 2 and be arranged at the top of smoke discharging pipe 1，This adds after heat pipe 2 sequentially passes through low temperature composite heat pipe 5 and high temperature composite heat pipe 4 and is connected with deaerator storage tank 3，The top of deaerator storage tank 3 is provided with oxygen-eliminating device exhaustor 7，The sidewall of deaerator storage tank 3 is provided with oxygen-eliminating device outlet pipe 8，The inside of high temperature composite heat pipe 4 and low temperature composite heat pipe 5 is separately filled with liquid level between adding heat pipe 2 and finned heat pipe I 12、Liquid thermal conductivity media between finned heat pipe II 6，The top of high temperature composite heat pipe 4 and low temperature composite heat pipe 5 is respectively equipped with evacuation adapter 9 and pressure vacuum gauge 10.Described high temperature composite heat pipe 4 and the outside of low temperature composite heat pipe 5 are respectively equipped with rock wool heat-preservation layer 11.Described smoke discharging pipe 1 is ND steel flue gas duct.Described high temperature composite heat pipe 4 is internal is filled with boiling temperature liquid thermal conductivity media between 105-110 DEG C, finned heat pipe I 12 inside high temperature composite heat pipe 4 is internal is filled with boiling temperature liquid thermal conductivity media between 115-120 DEG C, low temperature composite heat pipe 5 is internal is filled with boiling temperature liquid thermal conductivity media between 50-55 DEG C, and the finned heat pipe II 6 inside low temperature composite heat pipe 5 is internal is filled with boiling temperature liquid thermal conductivity media between 70-75 DEG C.
Flue gas flow: flue gas enters from smoke discharging pipe gas approach (right side Fig. 1), flows through high temperature composite heat pipe, passes through low temperature composite heat pipe, discharges from smoke discharging pipe exhanst gas outlet (left side Fig. 1).Soft water flow process: soft water enters from adding heat pipe water supplement port (left side Fig. 1), flows through low temperature composite heat pipe, passes through high temperature composite heat pipe, enters the oxygen evolution that deaerator storage tank is dissolved in water, then enters boiler through oxygen-eliminating device outlet pipe and water pump.
Heat pipe operation principle is in a system closed, and relies on the phase-state change (liquid phase becomes vapour phase or vapour phase becomes liquid phase) of fluid to transmit the device of heat.It is a kind of high efficient heat exchanging element, and its heat exchange efficiency is tens times of general steel plate even hundreds of times.Finned heat pipe is to install heat exchange fin in the side of heat pipe to improve the overall heat exchange efficiency of heat pipe.Composite heat pipe is to be contained on the heat-absorbent surface of a big heat pipe by several small heat pipes, liquid thermal conductivity media in heating big heat pipe, hot tube high-efficiency is utilized to change thermal property, improve the heat exchange efficiency of composite heat pipe, reach to reduce equipment volume, reduce steel consumption, the purpose of raising whole economic efficiency.Composite heat pipe, built with liquid thermal conductivity media, is in vacuum state during normal work, to alleviate the air impact on heat transfer, also can alleviate the oxygen corrosion to steel simultaneously；The heat exchange efficiency of composite heat pipe is by more than the Radix Achyranthis Bidentatae of general steel plate.Composite heat pipe is to be arranged on by finned heat pipe on the heating surface of big heat pipe, to improve the heat exchange efficiency of composite heat pipe further.
The Main Ingredients and Appearance of boiler smoke has N2、O2、CO2、SO2、H2O, CO etc., when flue-gas temperature is down to below dew point, occur to react SO as follows2+H2O=H2SO3, sulfurous acid has corrosiveness to ordinary steel flue, i.e. H2SO3+Fe=FeSO3+H2, thus decrease the service life of ordinary steel flue, limit the application on flue gas deep cooling oxygen-eliminating device of the ordinary steel flue；Use resistance to sulfurous acid, the ND steel flue gas duct of sulfuric acid corrosion then can eliminate the deficiency of ordinary steel flue, it is ensured that the service life of smoke discharging pipe.
This utility model by ND steel flue gas duct and composite heat pipe combination application on flue gas deep cooling oxygen-eliminating device, form a kind of composite heat pipe formula flue gas deep cooling oxygen-eliminating device, not only increase boiler efficiency, and the oxygen content in boiler feedwater can be reduced, prolonged boiler service life, this compound thermal tubular type flue gas deep cooling oxygen-eliminating device heat exchange efficiency is high, volume is little, steel consumption is few, service life is long, compares other flue gas deep cooling type oxygen-eliminating device and has more preferable application prospect.
Claims (5)
- null1. a compound thermal tubular type flue gas deep cooling oxygen-eliminating device，Including smoke discharging pipe、Composite heat pipe、Add heat pipe and deaerator storage tank，Described smoke discharging pipe is provided with composite heat pipe，This composite heat pipe is surrounded on the outside of smoke discharging pipe and is tightly connected with smoke discharging pipe，Smoke discharging pipe inside composite heat pipe is provided with finned heat pipe，This finned heat pipe is radially distributed in the upper half side of smoke discharging pipe and to be tightly connected with smoke discharging pipe，Finned heat pipe inside smoke discharging pipe is provided with heat exchange fin，The inside of finned heat pipe is filled with liquid thermal conductivity media，Add heat pipe and be arranged at the top of smoke discharging pipe，This adds after heat pipe runs through composite heat pipe and is connected with deaerator storage tank，The top of deaerator storage tank is provided with oxygen-eliminating device exhaustor，The sidewall of deaerator storage tank is provided with oxygen-eliminating device outlet pipe，The inside of composite heat pipe is filled with liquid level between the liquid thermal conductivity media adding between heat pipe and finned heat pipe，The top of composite heat pipe is provided with evacuation adapter and pressure vacuum gauge.
- Compound thermal tubular type flue gas deep cooling oxygen-eliminating device the most according to claim 1, it is characterized in that: described composite heat pipe includes high temperature composite heat pipe and low temperature composite heat pipe, this high temperature composite heat pipe and low temperature composite heat pipe are surrounded on the outside of smoke discharging pipe successively along flue gas airintake direction and are tightly connected with smoke discharging pipe, and described adding after heat pipe sequentially passes through low temperature composite heat pipe and high temperature composite heat pipe is connected with deaerator storage tank.
- Compound thermal tubular type flue gas deep cooling oxygen-eliminating device the most according to claim 2, it is characterized in that: inside described high temperature composite heat pipe, be filled with boiling temperature liquid thermal conductivity media between 105-110 DEG C, boiling temperature liquid thermal conductivity media between 115-120 DEG C it is filled with inside finned heat pipe I inside high temperature composite heat pipe, it is filled with boiling temperature liquid thermal conductivity media between 50-55 DEG C inside low temperature composite heat pipe, inside the finned heat pipe II inside low temperature composite heat pipe, is filled with boiling temperature liquid thermal conductivity media between 70-75 DEG C.
- Compound thermal tubular type flue gas deep cooling oxygen-eliminating device the most according to claim 1, it is characterised in that: the outside of described composite heat pipe is provided with rock wool heat-preservation layer.
- Compound thermal tubular type flue gas deep cooling oxygen-eliminating device the most according to claim 1, it is characterised in that: described smoke discharging pipe is ND steel flue gas duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620147452.7U CN205480931U (en) | 2016-02-29 | 2016-02-29 | Compound heat pipe formula flue gas cryrogenic oxygen -eliminating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620147452.7U CN205480931U (en) | 2016-02-29 | 2016-02-29 | Compound heat pipe formula flue gas cryrogenic oxygen -eliminating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205480931U true CN205480931U (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620147452.7U Withdrawn - After Issue CN205480931U (en) | 2016-02-29 | 2016-02-29 | Compound heat pipe formula flue gas cryrogenic oxygen -eliminating device |
Country Status (1)
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| CN (1) | CN205480931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570872A (en) * | 2016-02-29 | 2016-05-11 | 裴渐强 | Compound heat pipe type smoke deep cooling deaerator |
-
2016
- 2016-02-29 CN CN201620147452.7U patent/CN205480931U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570872A (en) * | 2016-02-29 | 2016-05-11 | 裴渐强 | Compound heat pipe type smoke deep cooling deaerator |
| CN105570872B (en) * | 2016-02-29 | 2017-06-30 | 裴渐强 | A kind of compound thermal tubular type flue gas deep cooling oxygen-eliminating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160817 Effective date of abandoning: 20170630 |