CN203824191U - Novel electric heating device - Google Patents
Novel electric heating device Download PDFInfo
- Publication number
- CN203824191U CN203824191U CN201420186252.3U CN201420186252U CN203824191U CN 203824191 U CN203824191 U CN 203824191U CN 201420186252 U CN201420186252 U CN 201420186252U CN 203824191 U CN203824191 U CN 203824191U
- Authority
- CN
- China
- Prior art keywords
- refrigerant
- tube
- inner tube
- outer tube
- electrical heating
- 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.)
- Expired - Lifetime
Links
- 238000005485 electric heating Methods 0.000 title abstract description 13
- 239000003507 refrigerant Substances 0.000 claims abstract description 104
- 238000010438 heat treatment Methods 0.000 claims abstract description 53
- 238000007789 sealing Methods 0.000 claims abstract description 14
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000008676 import Effects 0.000 claims description 33
- 239000007788 liquid Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 20
- 239000012530 fluid Substances 0.000 abstract description 3
- 238000004378 air conditioning Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a novel electric heating device which comprises an outer tube, wherein a refrigerant inlet, a refrigerant outlet and an electric heating opening are formed in the outer tube; a heating device is arranged in the outer tube, and comprises an inner tube and an electric heating wire; the electric heating wire is arranged in the inner tube; magnesium powder is filled between the inner tube and the electric heating wire; the inner tube is spirally arranged in the outer tube; the wire connecting end of the inner tube extends out of the electric heating opening of the outer tube; the inner wall of the electric heating opening is fixed together with the outer wall of the inner tube which is close to the inner wall of the electric heating opening; a sealing block is arranged at the inner wall of the wire connecting end of the inner tube; a connecting leading wire is arranged in the electric heating opening, and connected with the electric heating wire; a spiral fin is arranged at the outer wall of the inner tube so as to effectively enlarge the heat transferring area and improve the heat exchanging effect; meanwhile, under the condition that the length of the outer tube is cut down, the electric heating device can still achieve the heat exchanging efficiency and the heat exchanging effect required by the device; fluid is in sufficient contact with the outer surface of the inner heating pipe so as to realize the condition that the device can be applied to mini-equipment.
Description
Technical field:
The utility model relates to heat exchanger equipment technical field, relates in particular a kind of Novel cooling medium electric heater unit.
Background technology:
In air-conditioning system, when winter heating, the easy frosting of the heat exchanger of outer machine, once and frosting, the heating effect of air-conditioning will be very poor, and after frosting a period of time, air-conditioning system will defrost accordingly, can make like this indoor temperature reduce, and allows people feel very uncomfortable.Especially under low temperature environment, heat air-conditioning heating poor effect; Same problem also there will be in Teat pump boiler field, and under low temperature environment, water heating chronic, has affected comfortableness.In refrigerator field, the wind-cooled evaporator of refrigerator can be tied very thick frost layer, affects heat transfer effect, and therefore refrigerator can regularly be shut down defrost, and the defrost is here, at evaporator surface, electrical heating wire is installed, by heat radiation defrost.
If in refrigeration system circulation, install an inner heating device of this patent, system is in running so, and refrigerant is heated, thereby can improve air-conditioning heating effect, minimizing Teat pump boiler heat time; On refrigerator, can realize and not shut down defrost.On air-conditioning, use due to the refrigerant heating of be correlated with, the refrigerant temperature raising that compressor is absorbed, compressor exhaust temperature also can rise, and the while inspiratory flow of compressor also can increase, and can greatly improve heating effect.On Teat pump boiler, use, the same air-conditioning heating of principle, can reduce outer machine frosting, improves compressor exhaust temperature and capacity, greatly improves heating effect.In refrigerator field, along with the increase of frost layer, built-in heating refrigerant, the refrigerant temperature that makes to flow in evaporimeter increases, and melts from inside the frost evaporimeter.On the whole, adopt electric heater directly to heat the method for refrigerant, heat by the refrigerant heater being arranged on pipeline the heat energy that is refrigerant electric energy conversion, thereby increase the heat of unit output, improve efficiency and the efficiency of defrost.
But in prior art, it adopts refrigerant electric heating device inner tube is set in outer tube, electric heater is set in inner tube and carries out heat exchange, it is in order to improve heat exchange efficiency by the outer wall setting of inner tube in the shape of a spiral, but its effect raising is not obvious, in order further to improve the effect of heat exchange, it is also provided with refrigerant import in one end of outer tube, the other end is provided with refrigerant exit, the distance that increases by two ports improves the effect of heat exchange, although this has further improved the effect of heat exchange, but need to ensure that outer length of tube could embody its effect, for in some small-sized equipment, it can not well use.
Utility model content:
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of Novel electric heater is provided, and it has improved the effect of heat exchange, simultaneously, in the situation that length is dwindled, still can meet the required heat exchange efficiency of equipment and effect, to meet the use in mini-plant.
The scheme that the utility model solve the technical problem is:
A kind of Novel electric heater, comprise outer tube, outer tube is provided with refrigerant import, refrigerant exit and electrical heating port, outer tube inside is provided with heater, described heater comprises inner tube and electrical heating wire, electrical heating wire is placed in inner tube, is filled with magnesium powder between inner tube and electrical heating wire, and inner tube is placed in outer tube in the shape of a spiral;
The terminals of inner tube stretch out the electrical heating port of outer tube, between the inwall of electrical heating port and its outer wall of inner tube leaning on mutually, are fixed together;
The inwall of the terminals of inner tube is provided with sealing block, is provided with connection wire in sealing block, connects wire and is connected with electrical heating wire;
The outer wall of described inner tube is provided with helical form fin.
The outer wall elasticity of described sealing block is pressed against on the inwall of terminals of inner tube and is fixed on terminals place, and sleeve be fixed with connection wire in the middle through-hole of sealing block, connects wire and be connected with electrical heating wire.
On described outer tube, form refrigerant import and refrigerant exit, refrigerant feed tube sleeve is in refrigerant import, together with the outer wall of refrigerant feed tube is welded and fixed with the inwall of refrigerant import, refrigerant feed tube communicates with the inner chamber of outer tube, refrigerant drain pipe sleeve is in refrigerant exit, together with the outer wall of refrigerant drain pipe is welded and fixed with the inwall of refrigerant exit, refrigerant drain pipe communicates with the inner chamber of outer tube.
Described refrigerant import and refrigerant exit are located on an end of outer tube, and the outer tube outer wall between refrigerant import and refrigerant exit forms reinforcement groove, and the liquid feeding end of refrigerant drain pipe stretches into the bottom of outer tube.
Described refrigerant import, refrigerant exit and electrical heating port are arranged on an end of outer tube, and the outer tube outer wall between refrigerant import, refrigerant exit and electrical heating port forms reinforcement groove, and the liquid feeding end of refrigerant drain pipe stretches into the bottom of outer tube.
Described electrical heating wire is placed in inner tube in the shape of a spiral.
Together with being bolted or being welded and fixed between the inwall of described electrical heating port and its outer wall of inner tube leaning on mutually.
Outstanding effect of the present utility model is:
1, compared with prior art, it is provided with fin on the outer wall of inner tube, can effectively increase heat transfer area, in the time that import is communicated with outlet the fluid that needs heating, the tube wall surface of fluid and inner tube fully contacts further to improve the heat exchange amount between refrigerant, and its effect is very obvious.
2, it is arranged on refrigerant import, refrigerant exit on same one end, the liquid feeding end of refrigerant drain pipe stretches into the bottom of outer tube, its heat exchange distance and outer tube one end arrange refrigerant import, the other end and arrange compared with refrigerant exit and be doubled like this, its heat transfer effect is more remarkable, like this in the time using in mini-plant, when outer tube can being dwindled, length still can meet the required heat exchange efficiency of equipment and effect.
Brief description of the drawings:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the partial structurtes schematic diagram of heater of the present utility model;
Fig. 3 is the partial structurtes schematic diagram of inner tube of the present utility model and upper fin thereof;
Fig. 4 is another kind of structural representation of the present utility model;
Fig. 5 is the third structural representation of the present utility model;
Fig. 6 is the 4th kind of structural representation of the present utility model;
Fig. 7 is the 5th kind of structural representation of the present utility model.
Detailed description of the invention:
Embodiment 1, see as shown in Fig. 1 to 7, a kind of Novel electric heater, comprise outer tube 1, outer tube 1 is provided with refrigerant import 2, refrigerant exit 3 and electrical heating port 4, and outer tube 1 inside is provided with heater, described heater comprises inner tube 5 and electrical heating wire 6, electrical heating wire 6 in the shape of a spiral (it also can be other shape setting) be placed in inner tube 5, between inner tube 5 and electrical heating wire 6, be filled with magnesium powder 7, inner tube 5 is placed in outer tube 1 in the shape of a spiral;
The terminals 51 of inner tube 5 stretch out the electrical heating port 4 of outer tube 1, together with fixing or be welded and fixed by being spirally connected between the inwall of electrical heating port 4 and its inner tube 5 outer walls that lean on mutually;
The inwall of the terminals 51 of inner tube 5 is provided with sealing block 52, in sealing block 52, be provided with and connect wire 53, connecting wire 53 is connected with electrical heating wire 6, the other end of inner tube 5 is bottom 55, bottom 55 is sealing end (sealed end), and meanwhile, the bottom 55 of inner tube 5 is mutually close with terminals 51, inner tube 5 is spiraled from lower to upper again and is formed double helix shape for spiraling from top to bottom simultaneously, and it further improves the effect of heat exchange;
Meanwhile, the electrical heating port 4 that outer tube 1 also can be stretched out in the bottom 55 of inner tube 5 seals or directly the end of bottom 55 is weldingly fixed on the outer wall at terminals 51 places and carries out fixing seal.
The outer wall of described inner tube 5 is provided with helical form fin 20, and it is generally on the outer wall at the middle part of inner tube 5.
The outer wall elasticity of described sealing block 52 is pressed against on the inwall of terminals 51 of inner tube 5 and is fixed on terminals 51 places, and sleeve be fixed with and connect wire 53 in the middle through-hole of sealing block 52, connects wire 53 and be connected with electrical heating wire 6.
On described outer tube 1, form refrigerant import 2 and refrigerant exit 3, refrigerant feed tube 8 sleeves are in refrigerant import 2, together with the outer wall of refrigerant feed tube 8 is welded and fixed with the inwall of refrigerant import 2, refrigerant feed tube 8 communicates with the inner chamber of outer tube 1, refrigerant drain pipe 9 sleeves are in refrigerant exit 3, together with the outer wall of refrigerant drain pipe 9 is welded and fixed with the inwall of refrigerant exit 3, refrigerant drain pipe 9 communicates with the inner chamber of outer tube 1.
Described refrigerant import 2 and refrigerant exit 3 are located on an end of outer tube 1, and outer tube 1 outer wall between refrigerant import 2 and refrigerant exit 3 forms strengthens groove 10, and the liquid feeding end of refrigerant drain pipe 9 stretches into the bottom of outer tube 1.
Embodiment 2, as shown in Figure 4, described refrigerant import 2, refrigerant exit 3 and electrical heating port 4 are arranged on an end of outer tube 1, outer tube 1 outer wall between refrigerant import 2, refrigerant exit 3 and electrical heating port 4 forms strengthens groove 10, and the liquid feeding end of refrigerant drain pipe 9 stretches into the bottom of outer tube 1.All the other are with embodiment 1.
Embodiment 3, shown in Fig. 5, described refrigerant import 2 and refrigerant exit 3 are arranged on the sidewall of outer tube 1.
Shown in embodiment 4, Fig. 6, described refrigerant import 2 and refrigerant exit 3 are arranged on two ends of outer tube 1, and electrical heating port 4 is arranged on the sidewall of outer tube 1.
Embodiment 5, shown in Fig. 7, its refrigerant import 2 or refrigerant exit 3 are arranged on a sidewall of outer tube 1, and the upper end of outer tube 1 or lower end arrange electrical heating port 4, and refrigerant exit 3 or refrigerant import 2 are arranged on the lower end or upper end of outer tube 1.
Inner tube 2 in Fig. 1,2,4,5,6,7 adopts omission mode to draw, and its fin 20 does not show.Outer tube 1 adopts cylindrical shell and two of ends part to be welded, and it is arranged on inner tube 2 end to be welded on after cylindrical shell and on cylindrical shell, forms outer tube 1 entirety.
Operation principle: refrigerant enters the inner chamber of outer tube 1 from refrigerant import 2, simultaneously, electrical heating wire 6 heats by magnesium powder 7 and conducts heat to inner tube 5, inner tube 5 is copper pipe, by inner tube 5, heat is passed on the fin 20 on inner tube 5 walls, inner tube 5 and fin 20 carry out heat exchange with the refrigerant in outer tube 1, and the refrigerant after heat exchange reenters system from refrigerant exit 3, thereby increase the heat output of system, defrosting finishes rear electric heater and closes.
Claims (7)
1. a Novel electric heater, comprise outer tube (1), outer tube (1) is provided with refrigerant import (2), refrigerant exit (3) and electrical heating port (4), outer tube (1) inside is provided with heater, it is characterized in that: described heater comprises inner tube (5) and electrical heating wire (6), electrical heating wire (6) is placed in inner tube (5), between inner tube (5) and electrical heating wire (6), is filled with magnesium powder (7), and inner tube (5) is placed in outer tube (1) in the shape of a spiral;
The terminals (51) of inner tube (5) stretch out the electrical heating port (4) of outer tube (1), between the inwall of electrical heating port (4) and its inner tube of leaning on mutually (5) outer wall, are fixed together;
The outer wall of described inner tube (5) is provided with helical form fin (20).
2. a kind of Novel electric heater according to claim 1, it is characterized in that: the inwall of the terminals (51) of described inner tube (5) is provided with sealing block (52), in sealing block (52), be provided with and connect wire (53), connect wire (53) and be connected with electrical heating wire (6);
The outer wall elasticity of sealing block (52) is pressed against on the inwall of terminals (51) of inner tube (5) and is fixed on terminals (51) and locates, in the middle through-hole of sealing block (52) sleeve and be fixed with connect wire (53), connect wire (53) be connected with electrical heating wire (6).
3. a kind of Novel electric heater according to claim 1, it is characterized in that: on described outer tube (1), form refrigerant import (2) and refrigerant exit (3), refrigerant feed tube (8) sleeve is in refrigerant import (2), together with the outer wall of refrigerant feed tube (8) is welded and fixed with the inwall of refrigerant import (2), refrigerant feed tube (8) communicates with the inner chamber of outer tube (1), refrigerant drain pipe (9) sleeve is in refrigerant exit (3), together with the outer wall of refrigerant drain pipe (9) is welded and fixed with the inwall of refrigerant exit (3), refrigerant drain pipe (9) communicates with the inner chamber of outer tube (1).
4. a kind of Novel electric heater according to claim 3, it is characterized in that: described refrigerant import (2) and refrigerant exit (3) are located on an end of outer tube (1), outer tube (1) outer wall between refrigerant import (2) and refrigerant exit (3) forms strengthens groove (10), and the liquid feeding end of refrigerant drain pipe (9) stretches into the bottom of outer tube (1).
5. a kind of Novel electric heater according to claim 3, it is characterized in that: described refrigerant import (2), refrigerant exit (3) and electrical heating port (4) are arranged on an end of outer tube (1), outer tube (1) outer wall between refrigerant import (2), refrigerant exit (3) and electrical heating port (4) forms strengthens groove (10), and the liquid feeding end of refrigerant drain pipe (9) stretches into the bottom of outer tube (1).
6. a kind of Novel electric heater according to claim 1, is characterized in that: described electrical heating wire (6) is placed in inner tube (5) in the shape of a spiral.
7. a kind of Novel electric heater according to claim 1, is characterized in that: together with being bolted or being welded and fixed between the inwall of described electrical heating port (4) and its inner tube of leaning on mutually (5) outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420186252.3U CN203824191U (en) | 2014-04-17 | 2014-04-17 | Novel electric heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420186252.3U CN203824191U (en) | 2014-04-17 | 2014-04-17 | Novel electric heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203824191U true CN203824191U (en) | 2014-09-10 |
Family
ID=51479676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420186252.3U Expired - Lifetime CN203824191U (en) | 2014-04-17 | 2014-04-17 | Novel electric heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203824191U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107702391A (en) * | 2017-10-11 | 2018-02-16 | 珠海格力电器股份有限公司 | Refrigerant heating device for defrosting and air conditioning system |
| CN108882417A (en) * | 2017-05-08 | 2018-11-23 | 马勒国际公司 | electric heater |
-
2014
- 2014-04-17 CN CN201420186252.3U patent/CN203824191U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108882417A (en) * | 2017-05-08 | 2018-11-23 | 马勒国际公司 | electric heater |
| CN107702391A (en) * | 2017-10-11 | 2018-02-16 | 珠海格力电器股份有限公司 | Refrigerant heating device for defrosting and air conditioning system |
| CN107702391B (en) * | 2017-10-11 | 2023-07-21 | 珠海格力电器股份有限公司 | Refrigerant heating device for defrosting and air conditioning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 312500 Xinchang Avenue East Road, Xinchang County, Shaoxing, Zhejiang Province, No. 889 Patentee after: ZHEJIANG TONGXING TECHNOLOGY Co.,Ltd. Address before: 312500 No. 889 Xinchang Avenue, Xinchang Industrial Park, Shaoxing, Zhejiang Patentee before: ZHEJIANG TWINSTAR REFRIGERATION Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |
|
| CX01 | Expiry of patent term |