CN105547027A - Turbulent heat exchanger - Google Patents
Turbulent heat exchanger Download PDFInfo
- Publication number
- CN105547027A CN105547027A CN201610069986.7A CN201610069986A CN105547027A CN 105547027 A CN105547027 A CN 105547027A CN 201610069986 A CN201610069986 A CN 201610069986A CN 105547027 A CN105547027 A CN 105547027A
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- Prior art keywords
- turbulent
- hot fluid
- heat
- exchanging device
- zone
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- Legal status (The legal status 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 status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
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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-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a turbulent heat exchanger. The turbulent heat exchanger comprises a shell. The shell is internally provided with heated containers used for containing cold fluid and a hot fluid channel arranged along the outer walls of the heated containers. The hot fluid channel is provided with a hot fluid inlet and a hot fluid outlet. Grilles are arranged in the hot fluid channel. Narrow slits are formed between the grilles and the outer walls of the heated containers. Turbulent cavities are formed between the grilles. Hot fluid flows into the hot fluid channel through the hot fluid inlet, turbulent flow is generated in the turbulent cavities when the hot fluid passes through the hot fluid channel, and then the hot fluid flows out through the hot fluid outlet. The turbulent heat exchanger has the advantages that the structure is simple and the manufacturing cost is low; the flow rate of air changes in the turbulent cavities and the narrow slits and the pressure is made to change, so that the turbulent effect is produced through interinfiltration between the high-temperature material point and the low-temperature material point and the heat exchange efficiency is improved; the grilles are heated through high-temperature airflow to produce infrared radiation, and a dual heat supply mode of turbulent airflow and infrared radiation is achieved, so that heat exchange is accelerated, the heat utilization rate is increased and accordingly the purpose of energy saving is achieved.
Description
Technical field
The present invention relates to a kind of heat-exchange apparatus, especially a kind of turbulent-flow heat-exchanging device.
Background technology
Heat exchanger is that the partial heat of hot fluid is passed to cold fluid, makes fluid temperature (F.T.) reach the heat exchange equipment of technological process set quota, also known as heat exchanger.
Existing heat exchanger many employings shell-and-tube heat exchanger and immersion serpentine heat exchanger two kinds of forms.Shell-and-tube heat exchanger is also known as shell and tube
heat exchanger, be the dividing wall type heat exchanger using closed wall of restraining in the housing as heat-transfer area, this kind of heat exchanger structure is comparatively simple, and operation is reliable; Cold and hot two kinds of fluids of heat exchange are carried out in shell-and-tube heat exchanger, a kind of at Bottomhole pressure, be called tube side fluid; Another kind of in the outer flowing of pipe, be called shell-side fluid.
Generally for improve heat exchange efficiency need the surface of heat exchanging body do very large to increase heat exchange area, like this certainly will to increase material use amount or increasing manufacturing process complexity, thus cause increase very large cost.Widely, outstanding heat transfer technology is the basis of energy-saving and emission-reduction, and the quality of energy-conserving and emission-cutting technology also will have lower cost except there being the higher thermal efficiency in the application of heat exchange, otherwise cannot by extensive promotion and application.
In existing heat exchanger, in order to increase heat exchange efficiency, most method increasing heat exchange area that adopts realizes, and such as install tubulation, finned tube additional, these measures can increase manufacture difficulty undoubtedly, increase cost of manufacture.In addition, smooth in the fluid passage of existing heat exchanger, gas in fluid passage is in advection state when flowing substantially, namely the air-flow pressed close near heated body presents " cold conditions " and presents " hot " away from the air-flow of heated body, with the flowing of opposing parallel state between " cold conditions " air-flow and " hot " air-flow, and the exchange of high temperature particle between hot and cold conditions and low temperature particle is relatively weak.
Summary of the invention
Technical problem to be solved by this invention is the present situation for prior art, and provide structure simple, low cost of manufacture, heat exchanger effectiveness is high, a kind of turbulent-flow heat-exchanging device that capacity usage ratio is high.
The present invention solves the problems of the technologies described above adopted technical scheme:
A kind of turbulent-flow heat-exchanging device, include housing, the zone of heat liberation being provided with the Heated container for holding cold fluid in housing and arranging along described Heated container outer wall, this zone of heat liberation is provided with hot fluid import and hot fluid outlet ports, grid is provided with in zone of heat liberation, be formed with narrow slit between grid and described Heated container outer wall, between grid, be formed with turbulent chamber; Hot fluid flows into zone of heat liberation from hot fluid import, turbulent by producing in turbulent chamber in zone of heat liberation process, then flows out from hot fluid outlet ports.
For optimizing technique scheme, the concrete measure taked also comprises:
Above-mentioned hot fluid import is just arranged burner, and burner is connected with gas inlet pipe.
Above-mentioned gas inlet pipe is connected with air intake duct.
Above-mentioned zone of heat liberation is S shape structure.
Above-mentioned hot fluid outlet ports place is provided with air-introduced machine.
Above-mentioned grid is made up of the screen be arranged in parallel.
The outer wall of the vertical described Heated container of above-mentioned screen is arranged.
Above-mentioned grid is made up of continuous print bending plate.
The sawtooth of above-mentioned bending plate is lance tooth or square tooth.
Above-mentioned grid is made up of the bank tube be arranged in parallel, and bank tube is hollow pipe or solid tubes.
Compared with prior art, a kind of turbulent-flow heat-exchanging device of the present invention, its structure is simple, and low cost of manufacture, by being provided with grid in zone of heat liberation, narrow slit is formed between grid and Heated container outer wall, be formed with turbulent chamber between grid, gas forms turbulent flow in turbulent chamber, and flow velocity is slack-off, and during by narrow slit, flow velocity is accelerated; According to Nu Baili principle, air velocity and pressure are inversely proportional to: then pressure is little soon for air velocity, and then pressure is large slowly for air velocity.Turbulent flow chamber and narrow slit place air velocity constantly change, thus cause the change of pressure, and the continuous change of pressure can cause interpenetrating between high temperature particle and low temperature particle, namely produces turbulence effect, thus improve heat exchange efficiency.
In addition, air-flow is while generation turbulence effect, the heat of high-temperature gas also can be passed to grid, grid temperatures can produce infrared radiation after raising, thus realizing the dual to hot mode of turbulent airflow and infrared radiation, Heated container is heated faster, accelerated heat exchanges, improve heat utilization ratio, thus reach energy-conservation object.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one;
Fig. 2 is the structural representation of the embodiment of the present invention two;
Fig. 3 is the structural representation of the embodiment of the present invention three;
Fig. 4 is the structural representation of the embodiment of the present invention four.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment as shown in Figures 1 to 4,
Figure grade illustrates: housing 1, Heated container 2, zone of heat liberation 3, hot fluid import 3a, hot fluid outlet ports 3b, grid 4, narrow slit 4a, turbulent chamber 4b, screen 41, bending plate 42, sawtooth 42a, bank tube 43, burner 5, gas inlet pipe 51, air intake duct 52, air-introduced machine 6.
Embodiment one, as shown in Figure 1,
A kind of turbulent-flow heat-exchanging device, include housing 1, the zone of heat liberation 3 being provided with the Heated container 2 for holding cold fluid in housing 1 and arranging along described Heated container 2 outer wall, this zone of heat liberation 3 is provided with hot fluid import 3a and hot fluid outlet ports 3b, grid 4 is provided with in zone of heat liberation 3, be formed with narrow slit 4a between grid 4 and described Heated container 2 outer wall, between grid 4, be formed with turbulent chamber 4b; Hot fluid flows into zone of heat liberation 3 from hot fluid import 3a, turbulent by producing in turbulent chamber 4b in zone of heat liberation 3 process, then flows out from hot fluid outlet ports 3b.
In embodiment, hot fluid import 3a is just arranged burner 5, burner 5 is connected with gas inlet pipe 51.
In embodiment, gas inlet pipe 51 is connected with air intake duct 52.
Burner 5 is just arranged hot fluid import 3a, and namely the hot fluid import 3a of zone of heat liberation 3 is just to thermal source, and hot fluid can be made directly to enter in zone of heat liberation 3; And on gas inlet pipe 51, be connected with air intake duct 52, carry out premix by the air entered from air intake duct 52 with from the combustion gas that gas inlet pipe 51 enters, to reach the object improving burner 5 flame temperature.
In embodiment, zone of heat liberation 3 is S shape structure.Adopt the zone of heat liberation 3 of S shape structure, when zone of heat liberation 3 length is identical, structure is more compact, takes up room little.And the zone of heat liberation 3 of S shape structure all can carry out exchange heat with the both sides outer wall of the Heated container 2 of centre, adds heat exchange area, improves heat exchange efficiency.
In embodiment, hot fluid outlet ports 3b place is provided with air-introduced machine 6.The setting of air-introduced machine 6 makes hot fluid outlet ports 3b place form negative pressure, ensures that the fluid in zone of heat liberation 3 successfully can be discharged from hot fluid outlet ports 3b.
In embodiment, grid 4 is made up of the screen 41 be arranged in parallel.Turbulent flow chamber 4b is between adjacent screen 41.
In embodiment, the outer wall of the vertical described Heated container 2 of screen 41 is arranged.
In the present embodiment, the structure of grid 4 is simple, low cost of manufacture.
Operation principle:
After burner 5 is lighted, burner 5 place produces flame and adds hot-air, and hot-air enters in zone of heat liberation 3 from hot fluid import 3a, and flows to hot fluid outlet ports 3b along zone of heat liberation 3 under the effect of air-introduced machine 6.Hot-air flows in the zone of heat liberation 3 of housing 1, and in flow process, heat exchange occurs for hot-air and Heated container 2, and heat is absorbed by Heated container 2 thus the cooling fluid temperature of Heated container 2 and its inside is raised, thus reaches the object of exchange heat.
In the process that hot-air flows in zone of heat liberation 3, when thermal air current is through narrow slit 4a, because space diminishes, air velocity is accelerated; And when hot-air flows into turbulent chamber 4b, especially space increases, air velocity slows down.According to Nu Baili principle, air velocity and pressure are inversely proportional to: then pressure is little soon for air velocity, and then pressure is large slowly for air velocity.Hot-air continues to flow and through turbulent chamber and narrow slit, air velocity is constantly changed, thus causes the change of pressure, and the continuous change of pressure can cause interpenetrating between high temperature particle and low temperature particle, namely produces turbulence effect, thus improves heat exchange efficiency.
Hot-air is while generation turbulence effect, the heat of hot-air also can be passed to grid 4 makes its temperature raise, grid 4 temperature can produce infrared radiation after raising, thus realize the dual to hot mode of turbulent airflow and infrared radiation, Heated container 2 accelerated heat is exchanged, Heated container 2 heats up faster, improves the utilization rate of heat, thus realizes energy-conservation object.
Embodiment two, as shown in Figure 2,
Heat exchanger in the present embodiment is similar to the heat exchanger structure of embodiment one, and difference is, in the present embodiment, grid 4 is made up of continuous print bending plate 42.
In embodiment, the sawtooth 42a of bending plate 42 is lance tooth.Form narrow slit 4a between the outer wall of bending plate 42 and Heated container 2, between adjacent saw-tooth 42a, form turbulent chamber 4b.
Adopt the bending plate 42 of lance tooth to form grid 4, because bending plate 42 is the overall structure of bending continuously, assemble more convenient, manufacturing cost is lower.
Embodiment three, as shown in Figure 3,
Heat exchanger in the present embodiment is similar to the heat exchanger structure of embodiment two, and difference is, in the present embodiment, forms the sawtooth 42a side of the being tooth of the bending plate 42 of grid 4.
The bending plate 42 of the side's of employing toothing, compared with the bending plate 42 of lance tooth, surface area is larger, and after bending plate 42 heating temperature raises, its infrared radiation effect is stronger.
Embodiment four, as shown in Figure 4,
Heat exchanger in the present embodiment is similar to the heat exchanger structure of embodiment one, and difference is, in the present embodiment, grid 4 is made up of the bank tube 43 be arranged in parallel.Form narrow slit 4a between the outer wall of bank tube 43 and Heated container 2, between adjacent bank tube 43, form turbulent chamber 4b.
In the present embodiment, bank tube 43 is hollow pipe.
Hollow pipe solid tubes in embodiment five, embodiment four replaces also can playing same effect.
Most preferred embodiment of the present invention is illustrated, and the various change made by those of ordinary skill in the art or remodeling all can not depart from the scope of the present invention.
Claims (10)
1. a turbulent-flow heat-exchanging device, include housing (1), it is characterized in that: the zone of heat liberation (3) being provided with the Heated container (2) for holding cold fluid in described housing (1) and arranging along described Heated container (2) outer wall, this zone of heat liberation (3) is provided with hot fluid import (3a) and hot fluid outlet ports (3b), grid (4) is provided with in described zone of heat liberation (3), narrow slit (4a) is formed between described grid (4) and described Heated container (2) outer wall, turbulent chamber (4b) is formed between described grid (4), hot fluid flows into zone of heat liberation (3) from hot fluid import (3a), turbulent by producing in turbulent chamber (4b) in zone of heat liberation (3) process, then flows out from hot fluid outlet ports (3b).
2. a kind of turbulent-flow heat-exchanging device according to claim 1, is characterized in that: described hot fluid import (3a) is just arranged burner (5), and described burner (5) is connected with gas inlet pipe (51).
3. a kind of turbulent-flow heat-exchanging device according to claim 2, is characterized in that: described gas inlet pipe (51) is connected with air intake duct (52).
4. a kind of turbulent-flow heat-exchanging device according to claim 3, is characterized in that: described zone of heat liberation (3) is S shape structure.
5. a kind of turbulent-flow heat-exchanging device according to claim 4, is characterized in that: described hot fluid outlet ports (3b) place is provided with air-introduced machine (6).
6. a kind of turbulent-flow heat-exchanging device according to claim 5, is characterized in that: described grid (4) is made up of the screen be arranged in parallel (41).
7. a kind of turbulent-flow heat-exchanging device according to claim 6, is characterized in that: the outer wall of the vertical described Heated container (2) of described screen (41) is arranged.
8. a kind of turbulent-flow heat-exchanging device according to claim 5, is characterized in that: described grid (4) is made up of continuous print bending plate (42).
9. a kind of turbulent-flow heat-exchanging device according to claim 8, is characterized in that: the sawtooth (42a) of described bending plate (42) is lance tooth or square tooth.
10. a kind of turbulent-flow heat-exchanging device according to claim 5, is characterized in that: described grid (4) is made up of the bank tube be arranged in parallel (43), and described bank tube (43) is hollow pipe or solid tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610069986.7A CN105547027A (en) | 2016-02-02 | 2016-02-02 | Turbulent heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610069986.7A CN105547027A (en) | 2016-02-02 | 2016-02-02 | Turbulent heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105547027A true CN105547027A (en) | 2016-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610069986.7A Pending CN105547027A (en) | 2016-02-02 | 2016-02-02 | Turbulent heat exchanger |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273844Y (en) * | 1995-11-14 | 1998-02-04 | 王传荣 | Corrugated turbulent flow type heat-exchanger |
| CN2385271Y (en) * | 1999-06-22 | 2000-06-28 | 天津市天龙热能设备有限公司 | Vertical high efficient heat pipe oil-burning gas-fired boiler |
| CN201021844Y (en) * | 2007-02-12 | 2008-02-13 | 成都嘉能热工有限公司 | Water and fire heater group |
| US20140261241A1 (en) * | 2013-03-12 | 2014-09-18 | Dejatech Ges B.V. | Heat exchanger and body therefore, and a method for forming a heat exchanger body |
| CN105202748A (en) * | 2015-10-13 | 2015-12-30 | 河北鑫华新锅炉制造有限公司 | Semi-backdraft type small-size fuel oil and fuel gas hot water boiler |
| CN205317048U (en) * | 2016-02-02 | 2016-06-15 | 宁波科莱尔节能科技股份有限公司 | Turbulent flow heat exchanger |
-
2016
- 2016-02-02 CN CN201610069986.7A patent/CN105547027A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2273844Y (en) * | 1995-11-14 | 1998-02-04 | 王传荣 | Corrugated turbulent flow type heat-exchanger |
| CN2385271Y (en) * | 1999-06-22 | 2000-06-28 | 天津市天龙热能设备有限公司 | Vertical high efficient heat pipe oil-burning gas-fired boiler |
| CN201021844Y (en) * | 2007-02-12 | 2008-02-13 | 成都嘉能热工有限公司 | Water and fire heater group |
| US20140261241A1 (en) * | 2013-03-12 | 2014-09-18 | Dejatech Ges B.V. | Heat exchanger and body therefore, and a method for forming a heat exchanger body |
| CN105202748A (en) * | 2015-10-13 | 2015-12-30 | 河北鑫华新锅炉制造有限公司 | Semi-backdraft type small-size fuel oil and fuel gas hot water boiler |
| CN205317048U (en) * | 2016-02-02 | 2016-06-15 | 宁波科莱尔节能科技股份有限公司 | Turbulent flow heat exchanger |
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Application publication date: 20160504 |
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| RJ01 | Rejection of invention patent application after publication |