CN207610411U - Electric water heater - Google Patents
Electric water heater Download PDFInfo
- Publication number
- CN207610411U CN207610411U CN201721564512.6U CN201721564512U CN207610411U CN 207610411 U CN207610411 U CN 207610411U CN 201721564512 U CN201721564512 U CN 201721564512U CN 207610411 U CN207610411 U CN 207610411U
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- CN
- China
- Prior art keywords
- ring flange
- water pipe
- nut
- pipe
- electric
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 81
- 238000005485 electric heating Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000002955 isolation Methods 0.000 claims abstract description 3
- 230000005611 electricity Effects 0.000 claims abstract 2
- 239000010935 stainless steel Substances 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 11
- 239000000956 alloy Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Resistance Heating (AREA)
Abstract
The utility model discloses an electric water heater, including electric heating pipe, ring flange, water pipe, electric heating pipe with the ring flange is fixed, at least one perforating hole has been seted up on the ring flange, and the water pipe passes the perforating hole, the water pipe with the ring flange passes through thread sealing fixedly. The utility model discloses an electric water heater, through passing through the screw thread sealing with water pipe and ring flange fixed, can avoid the restriction of welded fastening to the material requirement, through setting up insulating washer, can carry out the electricity isolation between ring flange and water pipe and the nut, prevent that electric heating pipe electric leakage from conducting along the water pipe, guarantee user safety in utilization.
Description
Technical field
The utility model is related to electric heater technical fields.
Background technology
Fixed form between the electric heating tube and the inlet and outlet pipes of stainless steel of existing stainless steel is usually direct
The ring flange that inlet and outlet pipes are fixed on electric heating tube by welding is burn-on, since temperature is very when heated for electric heating tube
Height, stainless steel are contacted with water for a long time in the case of a high temperature, and corrosion resistance is poor, be easy to cause liner leak for a long time, in order to
The corrosion resistance of lifting electrical heating pipe prevents liner leak, and electric heating tube and its flange mainly use titanium alloy material at present, so
And in order to realize electric heating tube with intake water pipe fixation, since stainless steel material and titanium alloy material can not weld, need by
Inlet and outlet pipes can realize being welded and fixed for inlet and outlet pipes and ring flange, inlet and outlet pipes equally all using titanium alloy material
Its function needs is sufficient for using stainless steel, if by its material replace with titanium alloy material will cause the wasting of resources and
Component costs are high, are based on this, how to invent a kind of electric heater, realize that stainless steel waterpipe and titanium alloy ring flange are fixed and close
Envelope, prevents liner leak, is the main technical problems to be solved of the utility model.
Invention content
The utility model is in order to solve the existing corrosion resistance for lifting electrical heating pipe and facilitate fixation, by flange
Disk, electric heating tube and inlet and outlet pipes are all made of titanium alloy material, cause the unnecessary wasting of resources and the high skill of component costs
Art problem, it is proposed that a kind of electric heater can solve the above problems.
In order to solve the above-mentioned technical problem, the utility model is achieved using following technical scheme：
A kind of electric heater, including electric heating tube, ring flange, water pipe, the electric heating tube are fixed with the ring flange, institute
It states and offers at least one through hole on ring flange, water pipe passes through the through hole, the water pipe to pass through spiral shell with the ring flange
Line sealing is fixed.
Further, the outer surface of the water pipe is formed with external screw thread, and the outer surface of the water pipe is screwed at least one
Nut fixes the water pipe and the ring flange.
Further, the outer surface of the water pipe is circumferentially formed with a circle annular convex platform, the annular convex platform with it is described
The wherein one side of ring flange fits closely, and the nut is located at the other side face of the ring flange.
Further, O shape seal washers are provided between the annular convex platform and the ring flange.
Further, the annular convex platform is located at the medial surface of the ring flange, and the nut is located at the ring flange
Lateral surface.
Further, insulating washer is provided between the nut and the ring flange, the insulating washer is by insulation material
Matter makes.
Further, the outer diameter of the water pipe is less than the internal diameter of the through hole, and the insulating washer includes washer body
With the annular projection on the wherein end face of washer body, the annular projection and the washer body be fixed with one and
Coaxial arrangement, for the washer body between the nut and the ring flange, the annular projection is inserted into the water pipe
In gap between the through hole.
Further, the ring flange and/or the electric heating tube are titanium alloy material.
Further, the water pipe is stainless steel.
Further, the water pipe includes water inlet pipe and outlet pipe, offered on the ring flange respectively with the water inlet
Pipe and one-to-one two through holes of outlet pipe, the water inlet pipe and outlet pipe be each passed through corresponding through hole and with institute
Ring flange is stated to fix.
Compared with prior art, the advantages of the utility model and good effect is：The electric heater of the utility model, passes through
Water pipe is fixed with ring flange by thread seal, can be insulated to avoid the limitation required material is welded and fixed by being arranged
Washer can will be electrically isolated between ring flange and water pipe and nut, prevented electric heating tube electric leakage from being conducted along water pipe, protected
It is safe to use to hinder user.
After the detailed description of the utility model embodiment is read in conjunction with the figure, other features and advantages of the utility model
It will become clearer.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of partial structural diagram for electric heater that the utility model is proposed；
Fig. 2 is the structural schematic diagram of ring flange in Fig. 1；
Fig. 3 is the fixed structure schematic diagram of ring flange and water pipe in Fig. 1；
Fig. 4 is the structural schematic diagram of insulating washer in Fig. 3.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one, the present embodiment propose a kind of electric heater, as shown in Figure 1 and Figure 2, including electric heating tube 11, flange
Disk 12, water pipe 13, electric heating tube 11 are fixed with ring flange 12, and at least one through hole 14, water pipe 13 are offered on ring flange 12
Across through hole 14, water pipe 13 is fixed with ring flange 12 by thread seal.The electric heater of the present embodiment, by by water pipe 13
It is fixed by thread seal with ring flange 12, it can be to avoid being welded and fixed the limitation required material, electric heating tube 11, ring flange
12, water pipe 13 can use any material e.g. can be all using stainless steel, or whole according to actual needs respectively
Using titanium alloy material, can also a portion use stainless steel, another part to use titanium alloy material, applicability
More extensively, versatile.Since the corrosion resistance to electric heating tube and ring flange is more demanding, electric heating tube 11 and ring flange
12 are preferably all made of titanium alloy material realization, and therefore, the two is most simple direct by the fixed form of welding, promotes its corrosion resistant
Erosion, can also reduce leakage point, ensure that liner is water-tight, and the corrosion resistance of water pipe is required compared with electric heating tube and ring flange and
Speech is relatively lower, and stainless steel is sufficient to meet its demand, and therefore, water pipe uses stainless steel, is conducive to save
Resource and cost improve product competitiveness.
The outer surface of water pipe 13 is formed with external screw thread（It is not shown in figure due to angle）, the outer surface of water pipe 13 is screwed on
There is at least one nut 15 to fix water pipe 13 and ring flange 12.Using threaded fastener by the fixed form of water pipe and ring flange
There are many, for example, a nut can be respectively set in the both sides of ring flange 12, by opposite direction rotating two nut, nut around
The external screw thread of water pipe 13 moves, and two nut may be implemented, ring flange is tightly clamped in centre, and then realize water pipe and flange
The fixation of disk can also be formed with fixed stop configurations in the outer surface of water pipe 13, which is located at ring flange 12
Wherein side is screwed on by nut and water pipe in the other side of ring flange 12, and then ring flange is clamped in nut and backstop
Between structure, the fixation of water pipe and ring flange is realized.The realization method that second scheme is preferably used in the present embodiment, passes through one
Flange chuck clamping is all made of for the nut of turn more easily by side fixed stop structure, other side turn nut compared with both ends
Operation.
As shown in figure 3, the outer surface of water pipe 13 is circumferentially formed with a circle annular convex platform 131, annular convex platform 13 and flange
The wherein one side of disk 12 fits closely, and nut 15 is located at the other side face of ring flange 12.Turn nut 15 so that nut 15
It is moved towards the direction of annular convex platform 131, it can be by 12 held tight of ring flange between nut 15 and annular convex platform 131, instead
15 negative direction turn of nut may be implemented to disassemble ring flange 12 from water pipe, and then facilitate repair or replacement by it
Partial structurtes part.
As shown in figure 3, in order to improve the sealing performance between ring flange 12 and annular convex platform 131, leak, convex annular are prevented
O shapes seal washer 16 is provided between platform 131 and ring flange 12.
As shown in figure 3, turn operating nut 15, preferably annular convex platform 131 are located at the medial surface of ring flange 12 for convenience,
Nut 15 is located at the lateral surface of ring flange 12, and then after assembling water heater liner, and nut 15 is located at the lateral surface of liner,
Worker is facilitated to assemble and dismantle by turn nut.
Since electric heating tube 11 and ring flange 12 are in direct contact, the electric leakage of electric heating tube 11 in order to prevent is passed by ring flange 12
It is handed to nut 15, and nut 15 is located on the outside of liner, belongs to that human body is easy the position touched and there are security risks, preferably exist
Insulating washer 17 is provided between nut 15 and ring flange 12, insulating washer 17 is made by isolation material, is used for ring flange 12
It is dielectrically separated between nut 15, blocks the conductive path between ring flange 12 and nut 15.
Since water pipe 13 is using conductive metal material, if ring flange 12 is in direct contact with water pipe 13, electric heating tube 11 leaks
Electric current will be transferred to water pipe 13 by ring flange 12 when electric, and water pipe 13 is in direct contact with nut 15, equally exist to human body
Security risk, therefore, the outer diameter of preferred water pipe 13 is less than the internal diameter of through hole 14 in the present embodiment, and water pipe 13 passes through through hole 14
There is certain gap between the two, as shown in figure 4, insulating washer 17 is including washer body 171 and positioned at washer body 171
Annular projection 172 wherein on end face, annular projection 171 are fixed with one and are coaxially disposed with washer body 171, washer master
Between nut 15 and ring flange 12, annular projection 172 is inserted into the gap between water pipe 13 and through hole 14 body 171.
Nut 15 and ring flange 12 can be dielectrically separated from by washer body 171, and annular projection 172 can be by water pipe 13 and flange
Disk 12 is dielectrically separated from, it is thereby achieved that ring flange and water pipe and nut are thoroughly dielectrically separated from, has prevented electric leakage
The case where causing human electric shock occurs.Meanwhile it by 15 packing washer main body 171 of nut, can be realized simultaneously through hole 14
The phenomenon that being sealed function between outside port and nut 15, evading liner leak occurs.
In technical field of water heaters, the water pipe for being inserted into liner includes water inlet pipe and outlet pipe, wherein in the present embodiment
Two ring flanges can be arranged in water heater, be respectively used to sealing fixed water inlet pipe and outlet pipe, sealing fixed structure mode is as before
Recorded in face, water inlet pipe and outlet pipe can also be fixed on the same ring flange simultaneously, at this point, as shown in Figure 1 and Figure 2, method
It needs to start two through holes on blue disk 12, which corresponds with water inlet pipe 13a and outlet pipe 13b, that is,
When assembly, water inlet pipe 13a and outlet pipe 13b are each passed through corresponding through hole and are fixed with the ring flange, water inlet pipe and
Outlet pipe is consistent with the fixed form of ring flange, may refer to noted before, and this will not be repeated here.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model,
It should also belong to the protection scope of the utility model.
Claims (10)
1. a kind of electric heater, including electric heating tube, ring flange, water pipe, it is characterised in that：The electric heating tube and the flange
Disk is fixed, and at least one through hole is offered on the ring flange, and water pipe passes through the through hole, the water pipe and the flange
Disk is fixed by thread seal.
2. electric heater according to claim 1, it is characterised in that：The outer surface of the water pipe is formed with external screw thread, institute
The outer surface for stating water pipe is screwed at least one nut and fixes the water pipe and the ring flange.
3. electric heater according to claim 2, it is characterised in that：The outer surface of the water pipe is circumferentially formed with a circle
The wherein one side of annular convex platform, the annular convex platform and the ring flange fits closely, and the nut is located at the ring flange
Other side face.
4. electric heater according to claim 3, it is characterised in that：It is arranged between the annular convex platform and the ring flange
There are O shape seal washers.
5. electric heater according to claim 3, it is characterised in that：The annular convex platform is located at the inside of the ring flange
Face, the nut are located at the lateral surface of the ring flange.
6. according to claim 2-4 any one of them electric heaters, it is characterised in that：Between the nut and the ring flange
It is provided with insulating washer, the insulating washer is made by isolation material.
7. electric heater according to claim 6, it is characterised in that：The outer diameter of the water pipe is less than the interior of the through hole
Diameter, the insulating washer include washer body and the annular projection on the wherein end face of washer body, and the ring-type is convex
Rise and be fixed with one and be coaxially disposed with the washer body, the washer body be located at the nut and the ring flange it
Between, the annular projection is inserted into the gap between the water pipe and the through hole.
8. according to claim 1-5 any one of them electric heaters, it is characterised in that：The ring flange and/or the electricity add
Heat pipe is titanium alloy material.
9. electric heater according to claim 8, it is characterised in that：The water pipe is stainless steel.
10. according to claim 1-5 any one of them electric heaters, it is characterised in that：The water pipe includes water inlet pipe and goes out
Water pipe, offer on the ring flange respectively with one-to-one two through holes of the water inlet pipe and outlet pipe, the water inlet
Pipe and outlet pipe are each passed through corresponding through hole and are fixed with the ring flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721564512.6U CN207610411U (en) | 2017-11-21 | 2017-11-21 | Electric water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721564512.6U CN207610411U (en) | 2017-11-21 | 2017-11-21 | Electric water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207610411U true CN207610411U (en) | 2018-07-13 |
Family
ID=62795308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721564512.6U Active CN207610411U (en) | 2017-11-21 | 2017-11-21 | Electric water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207610411U (en) |
-
2017
- 2017-11-21 CN CN201721564512.6U patent/CN207610411U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |