CN217560427U - Spiral heat medium heat exchanger - Google Patents
Spiral heat medium heat exchanger Download PDFInfo
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- CN217560427U CN217560427U CN202220574965.1U CN202220574965U CN217560427U CN 217560427 U CN217560427 U CN 217560427U CN 202220574965 U CN202220574965 U CN 202220574965U CN 217560427 U CN217560427 U CN 217560427U
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Abstract
The spiral heat medium heat exchanger comprises a working medium distribution chamber, a heat exchange working chamber, a working medium collection chamber and a spiral propelling shaft, wherein the working medium distribution chamber, the heat exchange working chamber, the working medium collection chamber and the spiral propelling shaft are fixed on an equipment foundation, the spiral propelling shaft is supported by two ends of the spiral propelling shaft through a supporting seat, a heat exchange tube bundle is arranged inside the spiral propelling shaft, the spiral propelling shaft sequentially penetrates through the working medium distribution chamber, the heat exchange working chamber and the working medium collection chamber, and the spiral propelling shaft comprises a driving supporting section, a heat exchange working section and a driven supporting section which are sequentially connected. The inside both ends of heat transfer working section are equipped with circular shutoff board, the centre is equipped with the division board, and circular shutoff board and division board are inside to be cut apart into the multistage with heat transfer working section. Utilize the utility model discloses, enable the material and work under the more invariable temperature of difference at the in-process that gos forward, the blade of screw axis can obtain effectual cooling to obtain higher heat transfer coefficient, provide heat transfer area high-usage, overcome not enough or the defect of current heat exchanger of the same kind.
Description
Technical Field
The utility model relates to a heat exchanger, concretely relates to spiral heat medium heat exchanger.
Background
The heat exchange equipment for heating and cooling materials, slag, ash and other various particles or plastic materials such as slurry and mud exists in a plurality of industrial fields such as electric power, metallurgy, chemical engineering and the like, the materials, the slag, the ash, the slurry, the mud and the like belong to substances with poor flowing property, and the improvement of the heat exchange coefficient of the heat exchange equipment has important significance for increasing the equipment capacity, improving the energy utilization efficiency and the like.
Conventional heat exchange equipment mainly comprises rotary type, bubbling bed, fluidized bed and the like. The bubbling bed and fluidized bed type heat exchangers generally adopt air and other gases as fluidizing and heat exchange media, the heat exchange coefficient of the bubbling bed and fluidized bed type heat exchangers is larger, but the bubbling bed and fluidized bed type heat exchangers have the defects that a heat exchange surface is seriously abraded, the fluidizing is difficult, exhaust gas needs to be further purified and the like in application, and the bubbling bed and fluidized bed type heat exchangers are less applied in the market at present. The rotary heat exchangers can be divided into various types such as drum type, spiral propulsion type, disc propulsion type and the like, and the defects of small heat exchange coefficient, low effective utilization rate of a heat exchange surface, large equipment, small capacity of single equipment and the like generally exist in the rotary heat exchangers.
In recent years, with the increase in the national demand for waste treatment, the reduction and detoxification treatment of solid waste having a high water content, such as municipal sludge and industrial sludge, is an important direction and policy for sludge treatment. Wherein, the sludge drying and calcining are the main ways of sludge reduction and harmlessness. The thermal power plant has the unique advantage in the aspects of sludge drying and calcining, can provide heat sources of various qualities for sludge drying, can recover heat generated by sludge combustion, and finds a reliable sludge treatment mode while bringing economic benefits to the power plant. In the sludge-coupled power generation technology, sludge is dried and then mixed with boiler coal to be sent to a hearth for combustion, heat generated by combustion is absorbed by a boiler to generate steam for power generation, solid waste generated by sludge combustion is mostly used for manufacturing building materials such as cement, and the sludge is changed into valuable.
Because the water content of the sludge is as high as 60-80%, in order to reduce the influence of the sludge on a boiler, the sludge needs to be dried to reduce the water content to 30-40%. At present, the sludge drying technology mainly adopts a disc type sludge drying technology and a drum type sludge drying technology. The defects of small heat exchange coefficient, low effective utilization rate of a heat exchange surface, large equipment, small capacity of single equipment and the like exist, the treatment capacity of single sludge drying equipment in China is about 5t/h at most at present, and the development of sludge drying equipment with larger capacity is urgently needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that the not enough of prior art is overcome, a spiral heat medium heat exchanger is provided.
The technical scheme that its technical problem of the utility model was adopted is, spiral heat medium heat exchanger, including working medium distributor, heat transfer studio, working medium collection room, the spiral propulsion axle that both ends supported through the bearing that fix on equipment foundation, the inside of spiral propulsion axle is equipped with the heat transfer tube bank, the spiral propulsion axle passes working medium distributor, heat transfer studio, working medium collection room in proper order, the top of heat transfer studio is provided with the feed inlet, and the below is equipped with the discharge gate, the top of working medium collection room is equipped with the working medium entry, the below of working medium distributor is equipped with the working medium export;
the spiral propelling shaft comprises a driving supporting section, a heat exchange working section and a driven supporting section which are sequentially connected, wherein the driving supporting section and the driven supporting section are of solid cylinder structures, the heat exchange working section is of a hollow cylinder structure, circular plugging plates are arranged at two ends of the inside of the heat exchange working section, partition plates are arranged in the middle of the inside of the heat exchange working section, the inside of the heat exchange working section is divided into a plurality of sections by the circular plugging plates and the partition plates, a working medium collecting cavity section and a working medium distributing cavity section are respectively arranged at two ends of the heat exchange working section, a vacuum heat exchange cavity section is arranged in the middle of the heat exchange working section, the working medium collecting cavity section is located in a working medium collecting chamber, the working medium distributing cavity section is located in the working medium distributing chamber, and the vacuum heat exchange cavity section penetrates through the heat exchange working chamber.
The heat exchange tube bundle penetrates through and is fixed with the circular blocking plate of the vacuum heat exchange cavity section and the partition plate in the middle, so that the working medium collection cavity section is communicated with the working medium distribution cavity section; the side wall of the working medium collecting cavity section is provided with a plurality of small holes, so that the working medium collecting cavity section is communicated with the working medium collecting chamber.
Furthermore, the division board is equipped with the polylith, cuts apart into a plurality of locules with the inside centre of heat transfer working section, a plurality of locules in the vacuum different.
Furthermore, a spiral strip hole is formed in the cylindrical surface of the vacuum heat exchange cavity section, and a spiral blade is arranged in the spiral strip hole.
Furthermore, the vacuum heat exchange cavity section is filled with evaporable harmless liquid, and the rest part is vacuum.
Further, the volume of the harmless liquid accounts for 2/3 of the volume in the vacuum heat exchange cavity section.
The utility model discloses following positive effect has: the working state of this embodiment is similar to the heat transfer process of heat pipe, and its heat transfer coefficient has obtained great promotion than ordinary screw shaft heat exchanger, controls the loculus quantity of vacuum heat transfer chamber section through setting up different division board quantity to and set up the different vacuum degree in the loculus, make the material work under the more constant temperature of difference in the in-process that advances, the blade of screw shaft can obtain effectual cooling, thereby obtain higher heat transfer coefficient, it is high to provide the heat transfer area utilization ratio, overcome the not enough or the defect of current like heat exchanger.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an axial cross-sectional view of the embodiment of FIG. 1;
fig. 3 isbase:Sub>A cross-sectional view taken atbase:Sub>A-base:Sub>A in fig. 3.
In the figure: 1-heat exchange working chamber, 2-spiral propulsion shaft, 3-built-in heat exchange tube bundle, 4-working medium distribution chamber and 5-working medium collection chamber.
1-1 feed inlet, 1-2 discharge outlet, 2-1 driving support section, 2-2 heat exchange working section, 2-3 driven support section, 2-4 helical blade, 2-5 round plugging plate, 2-6 working medium collection cavity section, 2-7 vacuum heat exchange cavity section, 2-8 working medium distribution cavity section, 2-9 intermediate partition board, 2-10 vacuum small cavity, 4-1 working medium outlet, 5-1 working medium inlet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to the attached drawings 1-3, the present embodiment includes a working medium distribution chamber 4 fixed on an equipment foundation (not shown in the figure), a heat exchange working chamber 1, a working medium collection chamber 5, and a spiral propulsion shaft 2 supported by supporting seats (not shown in the figure) at two ends, wherein a plurality of heat exchange tube bundles 3 are arranged inside the spiral propulsion shaft 2, the spiral propulsion shaft 2 sequentially passes through the working medium distribution chamber 4, the heat exchange working chamber 1, and the working medium collection chamber 5, a sealing structure (not shown in the figure) is arranged at a dynamic and static junction of each chamber where the spiral propulsion shaft 2 passes through, and one end of the spiral propulsion shaft 2 slowly rotates (the rotation speed is about 5-20 r/min) through a speed reducer (not shown in the figure) driven by a motor.
The left upper part of the heat exchange working chamber 1 is provided with a feed inlet 1-1, the feed inlet 1-1 is connected with a feed hopper, and the right lower part is provided with a discharge outlet 1-2. A working medium inlet 5-1 is arranged above the working medium collecting chamber 5, and a working medium outlet 4-1 is arranged below the working medium distributing chamber 4.
The overall appearance of the spiral propelling shaft 2 is a cylinder, and the spiral propelling shaft comprises a driving support section 2-1, a heat exchange working section 2-2 and a driven support section 2-3, wherein the driving support section 2-1 and the driven support section 2-3 are solid cylinder structures and are supported on a supporting seat. The heat exchange working section 2-2 is of a hollow cylinder structure, two ends of the interior of the heat exchange working section 2-2 are divided into a plurality of cavities by circular blocking plates 2-5 and partition plates 2-9, two ends of the heat exchange working section 2-2 are respectively a working medium collection cavity section 2-6 and a working medium distribution cavity section 2-8, the middle of the heat exchange working section 2-2 is a vacuum heat exchange cavity section 2-7, the working medium collection cavity section 2-6 is located in a working medium collection chamber 5, the working medium distribution cavity section 2-8 is located in a working medium distribution chamber 4, and the vacuum heat exchange cavity section 2-7 penetrates through the heat exchange working chamber 1.
Spiral strip holes are formed on the cylindrical surface of a vacuum heat exchange cavity section 2-7 of a heat exchange working section 2-2 in the heat exchange working chamber 1, and then the formed strip holes are sealed by spiral blades 2-4 with cross sections in a shape of 'ji', so that a spiral propeller is formed together. The heat exchange tube bundle 3 passes through the circular blocking plates 2-5 of the vacuum heat exchange cavity sections 2-7 and a plurality of partition plates 2-9 (shown as 2) in the middle and is tightly welded with the circular blocking plates, the vacuum heat exchange cavity sections are divided into a plurality of vacuum small cavities 2-10 (shown as two partition plates divide a vacuum heat exchange pipeline into 3 vacuum small cavities), and the working medium collection cavity sections 2-6 are communicated with the working medium distribution cavity sections 2-8 through the heat exchange tube bundle 3, but are not communicated with the vacuum heat exchange cavity sections 2-7. 3-6 small holes are arranged on the cylindrical side wall of the working medium collection cavity section 2-6, so that the working medium collection cavity section 2-6 is communicated with the working medium collection chamber 5.
The small vacuum cavities 2-10 of the vacuum heat exchange cavity sections 2-7 are filled with water or other evaporable harmless liquid, the air in the small vacuum cavities is expelled out, the small vacuum cavities are vacuumized, the small vacuum cavities are tightly closed after the vacuum pumping to maintain the vacuum, and the volume of the liquid accounts for 2/3 of the volume of the vacuum heat exchange cavity sections.
Preferably, the different vacuum chambers 2-10 divided by the partition plates 2-9 can be evacuated to different vacuum degrees.
When the heat exchanger in the embodiment is used as a heater to work, materials enter from the feeding hole 1-1 under the action of the spiral propelling shaft 2, move from left to right and are finally discharged from the discharging hole 1-2. The material absorbs the medium liquid and the gas medium in the screw shaft 2 to carry out heat in the moving process, the material is heated, in the process, the medium liquid is cooled, and part of the gas medium is condensed into liquid. Meanwhile, a heat carrier enters the working medium distribution chamber 4 from the working medium inlet 5-1, passes through the heat exchange tube bundle 3 in the spiral propulsion shaft 2, transfers heat to the medium liquid, the medium liquid is heated and evaporated, the working medium is cooled down, and finally the working medium is collected in the working medium collection chamber 5. Finally, the heat of the heating working medium is transferred to the working medium to be heated.
When the heat exchanger is used as a cooler in the embodiment, the heat transfer direction and the change of the physical state of the medium substance are opposite.
The working state of the heat exchanger in the embodiment is similar to the heat transfer process of a heat pipe, the heat exchange coefficient of the heat exchanger is greatly improved compared with that of a common spiral shaft heat exchanger, and the blades of the spiral shaft can be effectively cooled when the material works at different constant temperatures in the advancing process by controlling the number of small cavities of the vacuum heat exchange cavity section and different vacuum degrees in the small cavities. The heat exchanger has higher heat exchange coefficient, high utilization rate of heat exchange area and overcomes the defects of the prior similar heat exchanger.
Various modifications and variations of the present invention may be made by those skilled in the art, which are still within the scope of the present invention provided they are within the scope of the claims and their equivalents.
What is not described in detail in the specification is prior art that is well known to those skilled in the art.
Claims (5)
1. Spiral heat medium heat exchanger, including fixing working medium distribution room, heat transfer studio, working medium collection room, the spiral propulsion axle that the support was supported at both ends on the equipment basis, its characterized in that: a heat exchange tube bundle is arranged inside the spiral propelling shaft, the spiral propelling shaft sequentially penetrates through the working medium distribution chamber, the heat exchange working chamber and the working medium collection chamber, a feed inlet is formed above the heat exchange working chamber, a discharge outlet is formed below the heat exchange working chamber, a working medium inlet is formed above the working medium collection chamber, and a working medium outlet is formed below the working medium distribution chamber;
the spiral propelling shaft comprises a driving support section, a heat exchange working section and a driven support section which are sequentially connected, wherein the driving support section and the driven support section are of solid cylinder structures, the heat exchange working section is of a hollow cylinder structure, two ends of the inside of the heat exchange working section are provided with circular plugging plates, a partition plate is arranged in the middle of the inside of the heat exchange working section, the inside of the heat exchange working section is divided into a plurality of sections by the circular plugging plates and the partition plate, two ends of the heat exchange working section are respectively provided with a working medium collecting cavity section and a working medium distributing cavity section, and the middle of the heat exchange working section is provided with a vacuum heat exchange cavity section;
the heat exchange tube bundle penetrates through and is fixed with the circular blocking plate of the vacuum heat exchange cavity section and the partition plate in the middle, so that the working medium collection cavity section is communicated with the working medium distribution cavity section; the side wall of the working medium collecting cavity section is provided with a plurality of small holes, so that the working medium collecting cavity section is communicated with the working medium collecting chamber.
2. The spiral heat medium heat exchanger according to claim 1, wherein: the division board is equipped with the polylith, cuts apart into a plurality of locuses with the inside centre of heat transfer working section, a plurality of locuses in the vacuum different.
3. The spiral heat medium heat exchanger according to claim 1, wherein: the cylindrical surface of the vacuum heat exchange cavity section is provided with a spiral strip hole, and a spiral blade is arranged in the spiral strip hole.
4. The spiral heat medium heat exchanger of claim 1, wherein: the vacuum heat exchange cavity section is filled with evaporable harmless liquid, and the rest part is vacuum.
5. The spiral heat medium heat exchanger according to claim 4, wherein: the volume of the harmless liquid accounts for 2/3 of the volume of the vacuum heat exchange cavity section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220574965.1U CN217560427U (en) | 2022-03-16 | 2022-03-16 | Spiral heat medium heat exchanger |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220574965.1U CN217560427U (en) | 2022-03-16 | 2022-03-16 | Spiral heat medium heat exchanger |
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| CN217560427U true CN217560427U (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220574965.1U Active CN217560427U (en) | 2022-03-16 | 2022-03-16 | Spiral heat medium heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116182615A (en) * | 2023-04-26 | 2023-05-30 | 四川优浦达科技有限公司 | High-efficiency recovery device and method for waste liquid and waste heat of wastewater treatment plant |
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2022
- 2022-03-16 CN CN202220574965.1U patent/CN217560427U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116182615A (en) * | 2023-04-26 | 2023-05-30 | 四川优浦达科技有限公司 | High-efficiency recovery device and method for waste liquid and waste heat of wastewater treatment plant |
| CN116182615B (en) * | 2023-04-26 | 2023-06-27 | 四川优浦达科技有限公司 | High-efficiency recovery device and method for waste liquid and waste heat of wastewater treatment plant |
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