CN218846435U - Crack formula electric heater - Google Patents
Crack formula electric heater Download PDFInfo
- Publication number
- CN218846435U CN218846435U CN202222964172.3U CN202222964172U CN218846435U CN 218846435 U CN218846435 U CN 218846435U CN 202222964172 U CN202222964172 U CN 202222964172U CN 218846435 U CN218846435 U CN 218846435U
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- electric heating
- box
- flow dividing
- converge
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
A slit electric heater comprising: the electric heating pipes are inserted into the heat exchange pipes, and fluid channels are reserved between the electric heating pipes and the heat exchange pipes; the heat exchange tubes are arranged in the pressure container and are annularly arranged along the pressure container, and the heat exchange tubes are arranged in parallel or spirally along the axis of the pressure container; the flow distribution box is provided with an inlet, is arranged at one end of the pressure container, is communicated with one end of the heat exchange tube and is used for introducing fluid; the confluence box is provided with an outlet, is arranged at the other end of the pressure container, is communicated with the other end of the heat exchange tube and is used for leading out fluid; the junction box is connected with the wiring end of the electric heating tube. The crack type electric heater enables the electric heating pipe and the heat exchange pipe to form a crack by sleeving the electric heating pipe and the heat exchange pipe together, and has the advantages of high flow rate, quick heat exchange, high heat transfer coefficient, small volume, low cost and low energy consumption.
Description
Technical Field
The utility model relates to a heat exchanger, especially a crack formula electric heater.
Background
The shell-and-tube heat exchanger comprises a pressure container and an electric heating pipe, wherein the electric heating pipe is arranged in the pressure container and used for heating fluid inside the pressure container. At present, in order to improve the heat exchange efficiency, baffle plates are mostly adopted to form turbulent flow, so that the heat exchange efficiency is improved. However, the baffle plate has a temperature dead zone, which affects the heat exchange and the service life of the electric heater, and because the heat exchange efficiency is low, the fluid needs to stay for a long time to perform sufficient heat exchange, so the volume is large usually, and the cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a small, with low costs crack formula electric heater, concrete technical scheme is:
a slit electric heater comprising: the electric heating pipes are provided with a plurality of electric heating pipes; the heat exchange tubes are provided with a plurality of electric heating tubes, the electric heating tubes are inserted into the heat exchange tubes, fluid channels are reserved between the electric heating tubes and the heat exchange tubes, and the electric heating tubes correspond to the heat exchange tubes one by one; the heat exchange tubes are arranged in the pressure container in a circular mode and are arranged along the pressure container in a parallel mode or in a spiral mode along the axis of the pressure container; the flow distribution box is provided with an inlet, is arranged at one end of the pressure container, is communicated with one end of the heat exchange tube and is used for introducing fluid; the confluence box is provided with an outlet, is arranged at the other end of the pressure container, is communicated with the other end of the heat exchange tube and is used for leading out fluid; and the junction box is connected with the wiring end of the electric heating pipe.
Preferably, two ends of the flow distribution box are respectively provided with a flow distribution disc and a flow distribution sealing disc, the flow distribution disc is fixed at one end of the pressure container, the flow distribution disc is provided with a plurality of flow distribution holes, one end of the heat exchange tube is welded on the flow distribution holes in a sealing manner, the heat exchange tube corresponds to the flow distribution holes one by one, the flow distribution sealing disc is provided with a plurality of flow distribution sealing holes, the electric heating tubes are fixed on the flow distribution sealing holes in a sealing manner, and the electric heating tubes correspond to the flow distribution sealing holes one by one;
the both ends of the flow converging box are respectively provided with a flow converging disc and a flow converging sealing disc, the flow converging disc is fixed at the other end of the pressure vessel, a plurality of flow converging holes are formed in the flow converging disc, the other end of the heat exchange tube is welded on the flow converging holes in a sealing mode, the heat exchange tube corresponds to the flow converging holes in a one-to-one mode, a plurality of flow converging sealing holes are formed in the flow converging sealing disc, the electric heating tube is fixed on the flow converging sealing holes in a sealing mode, and the electric heating tube corresponds to the flow converging sealing holes in a one-to-one mode.
Preferably, both ends of the electric heating pipe are provided with heat dissipation areas, and the heat dissipation areas are located between the junction box and the flow dividing box and between the flow converging boxes.
Preferably, the junction box includes: the upper junction box is positioned at one end of the flow dividing box and is connected with the wiring end of the heat exchange tube; and the lower junction box is positioned at one end of the header box and is connected with the wiring end of the heat exchange tube.
Compared with the prior art the utility model discloses following beneficial effect has:
the utility model provides a crack formula electric heater cup joints electric heating pipe and heat exchange tube together, makes to form the crack between electric heating pipe and the heat exchange tube, and the crack has improved the velocity of flow of fluid, has increased the torrent degree between fluid and the electric heating pipe, has improved the coefficient of heat transfer of fluid and electric heating pipe and has realized quick heat transfer; meanwhile, the fluid flows through the coiled pipe structure, the flowing length of the fluid is increased, the heating channel of the fluid is prolonged, and the heat transfer coefficient and the heating channel are increased under the combined action, so that the volume of the equipment is reduced, the cost of the equipment is also reduced, and the external energy consumption of the equipment is also reduced.
Drawings
FIG. 1 is a schematic view of a slit electric heater;
FIG. 2 is a schematic diagram of the pressure vessel removed;
FIG. 3 is a schematic view of the assembly of the heat exchange tubes with the flow dividing and combining boxes;
fig. 4 is a schematic view of an assembly of an electric heating tube with a junction box;
FIG. 5 is a schematic view showing a structure in which an electric heating tube is inserted into a heat exchange tube;
fig. 6 is a schematic view of the diverter tray.
Detailed Description
The present invention will now be further described with reference to the accompanying drawings.
The fluid enters from the inlet 23, the fluid flows through the gap between the heat exchange tube 5 and the electric heating tube 4, the flow velocity is high, and the fluid generates secondary flow in the flowing process due to the spiral structure of the winding tube, so that the heat transfer enhancement degree of the fluid is further increased, and meanwhile, no temperature dead zone exists in the heating process of the fluid.
As shown in fig. 1 to 6, a slit type electric heater includes an electric heating tube 4, a heat exchanging tube 5, a pressure vessel 1, a flow dividing box 2, a flow converging box 3, and a junction box. The electric heating pipes 4 and the heat exchange pipes 5 are respectively provided with a plurality of electric heating pipes, the electric heating pipes 4 correspond to the heat exchange pipes 5 one by one, and fluid channels are reserved between the electric heating pipes 4 and the heat exchange pipes 5. The pressure vessel 1 is cylindrical, a plurality of heat exchange tubes 5 are arranged in the pressure vessel 1 and are annularly arranged along the pressure vessel 1, and the heat exchange tubes 5 are spirally arranged along the axis of the pressure vessel 1; the flow dividing box 2 and the flow converging box 3 are respectively positioned at two ends of the pressure container 1, and the flow dividing box 2 is provided with an inlet 23 and communicated with one end of the heat exchange tube 5 for introducing fluid; the header tank 3 is provided with an outlet 33 and communicates with the other end of the heat exchange tube 5 for drawing out the fluid.
The two ends of the flow distribution box 2 are respectively provided with a flow distribution disc 21 and a flow distribution sealing disc 22, the flow distribution disc 21 is further hermetically welded at one end of the pressure container 1, the flow distribution disc 21 is provided with a plurality of flow distribution holes 22, one end of the heat exchange tube 5 is hermetically welded on the flow distribution holes 22, the heat exchange tube 5 corresponds to the flow distribution holes 22 one by one, the flow distribution sealing disc 22 is provided with a plurality of flow distribution sealing holes, the electric heating tubes 4 are hermetically fixed on the flow distribution sealing holes, and the electric heating tubes 4 correspond to the flow distribution sealing holes one by one; the both ends of flow box 3 converge are equipped with respectively converge dish 31 and the sealed dish 32 that converges, converge dish 31 and fix at pressure vessel 1's the other end, converge and be equipped with a plurality of flow holes on the dish 31, the other end seal welding of heat exchange tube 5 is on the flow hole that converges, and heat exchange tube 5 and the hole one-to-one that converges, converge and be equipped with a plurality of sealed holes that converge on the sealed dish 32, electric heating pipe 4 seals to be fixed on the sealed hole that converges, electric heating pipe 4 and the sealed hole one-to-one that converges.
The junction box comprises an upper junction box 61 and a lower junction box 62, wherein the upper junction box 61 is positioned at one end of the flow dividing box 2 and is connected with a terminal of the heat exchange tube 5; the lower junction box 62 is located at one end of the header tank 3, and is connected with the terminal of the heat exchange tube 5.
Both ends of the electric heating pipe 4 are provided with heat radiation zones 41, and the heat radiation zones 41 are located between the upper junction box 61 and the flow dividing box 2, and between the lower junction box 62 and the flow converging box 3. The upper and lower terminal blocks 61 and 62 are easy to install and wire, and the wires scattered at both ends are also easy to weld from the ends after the electric heating tube 41 is broken.
The heat dissipation area 41 is a non-heating section of the electric heating tube 4, and is also a free bending section, so that the heat dissipation area has good flexibility, the thermal expansion of the electric heating tube 4 can be partially compensated by itself, the stress influence on the welding of the tube plate is reduced, the leakage possibility of the welding line is reduced, and meanwhile, the heat dissipation area is vibration-resistant and the service life is prolonged.
The fluid flows through the gap between the heat exchange tube 5 and the electric heating tube 4, the flow velocity of the fluid is improved, the turbulence degree between the fluid and the electric heating tube 4 is increased, the heat transfer coefficient between the fluid and the electric heating tube 4 is improved, the turbulence degree of the fluid can be obviously increased, the heat transfer coefficient between the fluid and the electric heating tube 4 is greatly improved, meanwhile, the fluid flows through the winding tube structure, the flowing length of the fluid is increased, the heating channel of the fluid is prolonged, the heat transfer coefficient and the heating channel are increased under the combined action of the two, the volume of the equipment is reduced, the cost of the equipment is also reduced, and the external energy consumption of the equipment is also reduced.
The implementation process comprises the following steps: the electric heating pipe 4 is inserted into the heat exchange pipe 5, and is wound together, and after winding, the electric heating pipe and the fluid are separated through the flow dividing box 2 and the flow converging box 3.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the claims of the present invention.
Claims (4)
1. A slit electric heater comprising:
the electric heating pipes (4), the electric heating pipes (4) are provided with a plurality of;
the heat exchange tubes (5), the heat exchange tubes (5) are provided with a plurality of electric heating tubes (4), the electric heating tubes are inserted into the heat exchange tubes (5), fluid channels are reserved between the electric heating tubes and the heat exchange tubes (5), and the electric heating tubes (4) correspond to the heat exchange tubes (5) one by one;
the heat exchange tubes (5) are arranged in the pressure container (1) in an annular mode and are arranged along the pressure container (1), and the heat exchange tubes (5) are arranged in parallel or in a spiral mode along the axis of the pressure container (1);
the flow dividing box (2) is provided with an inlet (23), and the flow dividing box (2) is installed at one end of the pressure container (1), is communicated with one end of the heat exchange tube (5) and is used for introducing fluid;
the confluence box (3) is provided with an outlet (33), the confluence box (3) is arranged at the other end of the pressure vessel (1), is communicated with the other end of the heat exchange tube (5) and is used for leading out fluid; and
and the junction box is connected with the wiring end of the electric heating pipe (4).
2. A crack type electric heater according to claim 1, characterized in that two ends of the flow dividing box (2) are respectively provided with a flow dividing disc (21) and a flow dividing sealing disc (22), the flow dividing disc (21) is fixed at one end of the pressure vessel (1), the flow dividing disc (21) is provided with a plurality of flow dividing holes (22), one end of the heat exchange tube (5) is hermetically welded on the flow dividing holes (22), the heat exchange tube (5) and the flow dividing holes (22) are in one-to-one correspondence, the flow dividing sealing disc (22) is provided with a plurality of flow dividing sealing holes, the electric heating tube (4) is hermetically fixed on the flow dividing sealing holes, and the electric heating tube (4) and the flow dividing sealing holes are in one-to-one correspondence;
the both ends of flow box (3) converge are equipped with respectively converge dish (31) and converge sealed dish (32), converge dish (31) and fix the other end of pressure vessel (1), it is equipped with a plurality of orifices of converging on dish (31) to converge, the sealed welding of the other end of heat exchange tube (5) is in converge on the orifice, just heat exchange tube (5) with converge the orifice one-to-one, it is equipped with a plurality of sealed holes of converging on sealed dish (32) to converge, electric heating pipe (4) are sealed to be fixed converge on the sealed hole, electric heating pipe (4) with converge sealed hole one-to-one.
3. A slit electric heater according to claim 1, characterised in that both ends of the electric heating tube (4) are provided with heat dissipating areas (41), said heat dissipating areas (41) being located between the junction box and the branching box (2) and the header box (3).
4. A seam electric heater according to claim 1, wherein the junction box comprises:
the upper junction box (61), the upper junction box (61) is positioned at one end of the flow dividing box (2), and is connected with the terminal of the heat exchange tube (5); and
the lower junction box (62) is located at one end of the header box (3) and connected with the terminal of the heat exchange tube (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222964172.3U CN218846435U (en) | 2022-11-08 | 2022-11-08 | Crack formula electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222964172.3U CN218846435U (en) | 2022-11-08 | 2022-11-08 | Crack formula electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218846435U true CN218846435U (en) | 2023-04-11 |
Family
ID=87301155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222964172.3U Active CN218846435U (en) | 2022-11-08 | 2022-11-08 | Crack formula electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218846435U (en) |
-
2022
- 2022-11-08 CN CN202222964172.3U patent/CN218846435U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103424012A (en) | Immersion type ring tube heat exchanger | |
| CN218846435U (en) | Crack formula electric heater | |
| CN204881271U (en) | Shell and tube type heat exchanger of interpolation segmentation silk screen | |
| CN212006847U (en) | Composite shell-and-tube heat exchanger | |
| CN106382831A (en) | Water cooled type parallel flow heat exchanger | |
| CN215187432U (en) | Electric heating device with uniform thermal field | |
| CN215177096U (en) | U-shaped pipe heat exchanger | |
| CN214095653U (en) | Header three-sleeve water storage secondary heating heat exchanger | |
| CN213984016U (en) | Half-volume water heater capable of improving heat exchange efficiency | |
| CN113271691A (en) | Electric heating device with uniform thermal field | |
| CN210664100U (en) | Inlet end structure of floating head heat exchanger | |
| CN209672885U (en) | A kind of spiral interior circularly cooling heat exchanger | |
| CN218565793U (en) | Grid structure of flat plate type heat collector and water heater | |
| CN214746538U (en) | U-shaped tube solar heat collector | |
| CN211651301U (en) | Shell and tube heat transfer device | |
| CN113776079B (en) | Air-cooled vertical water-cooled wall middle transition pipe fitting | |
| CN109954451A (en) | A kind of reactor for the production of silver-colored formaldehyde | |
| CN220570699U (en) | Electric heater with H-shaped fins | |
| CN209470571U (en) | A kind of wave node heat exchange tube heat exchanger | |
| CN214512760U (en) | Heater, hot air device and spray drying system | |
| CN214276654U (en) | High-efficient copper pipe and stainless steel tube sheet welded structure for heat exchanger | |
| CN218179267U (en) | Constant temperature field winding pipe heater | |
| CN220489784U (en) | High-efficiency chamber heat exchanger of pressure isolation station | |
| CN215524274U (en) | Double-row coiled pipe cooling tower radiator | |
| CN217275737U (en) | Heat exchanger and heat exchange assembly thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |