CN101319812B

CN101319812B - Liquid heater and its production technique

Info

Publication number: CN101319812B
Application number: CN200810068378XA
Authority: CN
Inventors: 纪宏光
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-10
Filing date: 2008-07-10
Publication date: 2010-06-23
Anticipated expiration: 2028-07-10
Also published as: CN101319812A

Abstract

The invention relates to a liquid heater and a production technology thereof, comprising a body, two connecting plates which are arranged at the two ends of the body, a cap which is fixedly connected with the two connecting plates, and two dead plates which are fixed at the two sides of the body. The body comprises a plurality of water pipes, a plurality of straight-plate-typed heating elements and insulators which are arranged between the water pipes and the heating elements. The two ends of the water pipes are provided with intakes and outlets. Through holes are arranged correspondingly on the two connecting plates. The water pipes are welded between the two connecting plates. An interval space is formed between every two adjacent water pipes. The heating elements and the insulators are arranged in the interval space. After being fastened, the body of the invention is welded with the connecting plates, ensuring that the water pipes and the heating elements are closely jointed without clearance. On one hand, the liquid heater improves the power and heat efficiency of the heater. On the other hand, the welding technology is simple. The welding points which are arranged on the surface are decreased and the connection is reliable. The cooling water used during welding can protect the insulators from damaging by the welding high temperature.

Description

Liquid heater and manufacture craft thereof

Technical field

The present invention relates to a kind of heater and manufacture craft thereof, relate in particular to a kind of liquid heater and manufacture craft thereof.

Background technology

Continuous development along with the heater technology, various liquid heaters arise at the historic moment, the heat exchanger water pipe of existing flat liquid heater mainly contains two kinds of structures, the one, the metal tube that several are sealed at both ends has the metal tube of through hole to be weldingly connected logical with middle, another kind is to form after the single metal pipe processing bending, the aforesaid liquid heater has safe and efficient and advantage such as energy-conserving and environment-protective, yet, owing to connect firmly with copper pipe or self bending between adjacent two water pipes of above-mentioned two kinds of liquid heaters, there is following shortcoming: at first, the border on the river gap of pipe and the thickness of heater of two-phase can't accurately coincide, and be difficult to change, cause between heat exchanger water pipe and the heater gapped, influence the heat exchange between the heat-transfer surface of heater and water pipe, cause the whole heater power and the thermal efficiency to descend, secondly, connect needs firmly through welding with copper pipe, cause the waste of a large amount of copper materials and scolder, and connect complex process firmly, cause a large amount of artificial wastes, and the metal bending technology of water pipe is very complicated, yield rate is extremely low.

Summary of the invention

The object of the present invention is to provide a kind of liquid heater, its welding procedure is simple, solder joint is on the surface, reduced solder joint, connect more reliably, can increase heating element heater length and reduce the number of heating element heater, can accomplish between heating element heater and the water pipe that not having the gap fits tightly, heat transfer effect is good, makes that heater power is big, the thermal efficiency is high.

Another purpose of the present invention is to provide the manufacture craft of described liquid heater, make in the heater heating element heater, water pipe and be arranged at the fastening assembling earlier of above insulator between the two, and then be welded to connect with connecting plate.And can accomplish to guarantee that the no gap between heating element heater, water pipe and the insulator three fits tightly, can guarantee that again insulator can not damage because of welding high temperature.

For achieving the above object, the invention provides a kind of liquid heater, comprising: body, two fixed heads being located at the connecting plate at body two ends and the lid of fixedlying connected with this two connecting plate respectively and being fixed in the body both sides respectively; Body comprise several water pipes, several flat heating element heaters and be located at water pipe and heating element heater between insulator, the two ends of several water pipes are respectively equipped with water inlet and delivery port, correspondence is provided with through hole on two connecting plates, water pipe is by being fixedly welded between two connecting plates, be formed with clearance space between two adjacent water pipes, heating element heater and insulator are folded in the clearance space; Lid is provided with intake tunnel and exhalant canal, is provided with flowing lumen in it, and described several water pipes are communicated with by flowing lumen, and is communicated with intake tunnel and exhalant canal.

By the different set-up modes of flowing lumen, can make current in several water pipes, realize in parallel the connection or the series connection connection.

The present invention also provides a kind of technology of making described liquid heater, comprises the steps:

Step 1 is folded in several heating element heaters and the insulator of being located at its both sides respectively between several adjacent in twos water pipes and forms body, in the both sides of body fixed head is set, and body is anchored between this two fixed head;

Step 2, body is placed tank, one end of several water pipes surface with connecting plate on corresponding welding of several through holes, and then the other end of several water pipes surfaced, with corresponding welding of several through holes on another connecting plate, in this process, be arranged at insulator between water pipe and the heating element heater and all be immersed in below the water surface in the tank;

Step 3 is connected two lids respectively with this two connecting plates respective fixation.

Beneficial effect of the present invention: at first, overall structure of the present invention is simple, reliable, water pipe and heating element heater and insulator are after the external stability plate is fastening, under the environment of water-cooled protection insulator, water pipe and connecting plate are welded again, make water pipe and heating element heater not have the gap and fit tightly, increased substantially the power and the thermal efficiency of heater; Secondly, welding procedure is simple, and solder joint between the heat exchanger copper pipe, makes the more reliable convenience of welding unlike the solder joint in the conventional method on the surface; In addition, use the water cooling protection insulator in the welding, can guarantee that insulator does not damage because of welding high temperature.

In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet appended graphic only provide with reference to and the explanation usefulness, be not to be used for the present invention is limited.

Description of drawings

Below in conjunction with accompanying drawing,, will make technical scheme of the present invention and other beneficial effects apparent by the specific embodiment of the present invention is described in detail.

Fig. 1 is the schematic perspective view of the liquid heater of first embodiment of the invention;

Fig. 2 is the three-dimensional exploded view of Fig. 1;

Fig. 3 is the assembled sectional view of Fig. 2;

Fig. 4 is the assembled sectional view of the liquid heater of second embodiment of the invention;

Fig. 5 is the three-dimensional exploded view of the liquid heater of third embodiment of the invention;

Fig. 6 is the assembled sectional view of Fig. 5;

Fig. 7 is the flow chart of the manufacture craft of liquid heater of the present invention.

The specific embodiment

As Figure 1-3, the liquid heater of first embodiment of the invention, comprise: body 20, two fixed heads 4 that are fixed in body 20 both sides, the upper junction plate 31 of being located at body 20 tops and the upper cover body 51 of fixedlying connected with upper junction plate 31, and be located at the lower connecting plate 32 of body 20 belows and the lower cover 52 that is fixedly linked with lower connecting plate 32.

Body 20 comprise four water pipes 21, three heating element heaters 22 be located at water pipe and be located at water pipe 21 and heating element heater 22 between six insulators 215, its two ends are respectively equipped with water inlet 24 and delivery port 25, on the upper and lower connecting

plate

31,32 respectively correspondence be provided with four through holes 33, article four, water pipe 21 is by being fixedly welded between the upper and lower connecting

plate

31,32, through hole 33 is connected with water pipe 21, and its solder joint is simple in surface, welding procedure.Be formed with clearance space 23 between two adjacent water pipes 21, heating element heater 22 fits tightly with insulator 215 and is folded in the clearance space 23, and heating element heater 22 is flat heating element heater, and the setting of insulator 215 can be prevented antipriming pipe 21 conductions.In the present embodiment, described four water pipes 21 are the rectangular metal pipe, form by 26,28 and two

second tube connectors

27,29 of two first tube connectors, wherein, water inlet 24 ends provided thereon of

first tube connector

26,28, delivery port 25 is located at the lower end, and the water inlet 24 of

second tube connector

27,29 is located at its lower end, delivery port 25 is located at the upper end, and

first tube connector

26,28 and

second tube connector

27,29 are arranged alternately.

In the present embodiment, heating element heater 22 is the plate type semiconductor heating element heater, comprise that two metal electrode boards 221 and each interval space are arranged at several pieces semiconductive ceramic heating sheets 222 between two battery lead plates 221, these several pieces semiconductive ceramic heating sheets 222 electrically connect with battery lead plate 221, heating element heater 22 is provided with terminals (not shown) and connects power supply, 222 heatings of semiconductive ceramic heating sheet, heating element heater 22 can pass through existing techniques in realizing, does not do at this and gives unnecessary details.

Left-right symmetry is provided with four connecting portions 41 on the fixed head 4, connecting portion 41 is provided with connecting hole 42, by the stay bolt 43 corresponding connecting holes 42 that connect on two fixed heads 4,, make three heating element heaters 22 more tight with the applying of these four water pipes 21 so that body 20 is fixed between two fixed heads 4.

The right side of upper cover body 51 is provided with intake tunnel 53, it is bending setting, one end is used to connect water inlet pipe 7, the water inlet 24 of the other end and first tube connector 26 of the rightmost side is corresponding to be provided with and to be connected, the left side of upper cover body 51 sets out aquaporin 54, it is bending and is provided with, and an end is used to connect outlet pipe 8, and the delivery port of the other end and second tube connector 29 of the leftmost side 25 is corresponding to be provided with and to be connected; Also be provided with flowing lumen 55 in the upper cover body 51, be communicated with the delivery port 25 of adjacent second tube connector, 27 upper ends and the water inlet 24 of first tube connector, 28 upper ends.Be provided with down flowing

lumen

56,57 in the lower cover 52, wherein, following flowing lumen 56 is communicated with the delivery port 25 of first tube connector, 26 lower ends and the water inlet 24 of second tube connector, 27 lower ends, and following flowing lumen 57 is communicated with the delivery port 25 of first tube connector, 28 lower ends and the water inlet 24 of second tube connector, 29 lower ends.In addition, corresponding several bolts hole 61 that is provided with on upper junction plate 31 and the upper cover body 51, corresponding several bolts hole 61 that is provided with on lower connecting plate 32 and the lower cover 52, connecting these bolts hole 61 by bolt 62 fixedlys connected upper junction plate 31 with upper cover body 51, lower connecting plate 32 is fixedlyed connected with lower cover 52, and, also can with the contact-making surface of lower cover 52 sealing gasket 63 be set in upper junction plate 31 and upper cover body 51, lower connecting plate 32, leak avoiding.

Consult Fig. 3, arrow is depicted as water (flow) direction, current form series connection and are communicated with between several water pipes 21, specifically, cold water from water inlet pipe 7 through intake tunnel 53 influent heaters, first tube connector 26 of flowing through successively, down flowing lumen 56, second tube connector 27, go up flowing lumen 55, first tube connector 28, flowing lumen 57, second tube connector 29 down, heating up under the heat transfer of three heating element heaters 22 is hot water, flow out from outlet pipe 8 through exhalant canal 54 again.

As shown in Figure 4, the structure of the liquid heater of second embodiment of the invention and first embodiment is roughly the same.Difference is that in the present embodiment, described intake tunnel 53 ' is located at respectively on body 20 outermost two

water pipes

26,29 with exhalant canal 54 '.

Shown in Fig. 5-6, the structure of the liquid heater of third embodiment of the invention and first embodiment is roughly the same.Difference is that in the present embodiment, the lower end of described four water pipes 21 is provided with water inlet 24 ', and the upper end sets out the mouth of a river 25 '; Be provided with down flowing lumen 56 ' in the described lower cover 52 ', its lower end is provided with the intake tunnel 53 that is connected with this time flowing lumen 56 ' ", the water inlet of this intake tunnel 53 ' and these four water pipe 21 lower ends 24 ' is corresponding to be provided with and to be connected; Establish flowing lumen 55 ' in the described upper cover body 51 ', its upper end be provided with should on exhalant canal 54 of being connected of flowing lumen 55 ' ", this exhalant canal 54 " correspondingly with the delivery port 25 ' of these four water pipe 21 upper ends be provided with and be connected.

Consult Fig. 5, arrow is depicted as water (flow) direction, current form in parallel the connection between several water pipes 21, specifically, cold water is from intake tunnel 53 " flow into; the flowing lumen 56 ' of flowing through down successively, these several water pipes 21, go up flowing lumen 55 ', heating up under the heat transfer of three heating element heaters 22 is hot water, again from exhalant canal 54 " outflow.

Improvement of the present invention also is the improvement of welding procedure, Figure 7 shows that the manufacture craft of the liquid heater of first embodiment, comprise the steps: step 1, three heating element heaters 22 and the insulator 215 of being located at its both sides be folded in respectively form body 20 between four adjacent in twos water pipes 21, in the both sides of body 20 fixed head 4 is set, connect relatively by stay bolt 43, body 20 is anchored between this two fixed head 4;

Step 2, body 2 is placed tank, with the upper end of several water pipes 21 surface with upper junction plate 31 on several through hole 33 corresponding welding, and then with the lower end of these several water pipes 21 surface with lower connecting plate 32 on several through hole 33 corresponding welding; In this step, being arranged at insulator 215 between water pipe 21 and the heating element heater 22 all is immersed in below the water surface in the tank; In the welding process, the heat that welding produces can not conduct to the insulator 215 that all is immersed in the tank because of through water cooling, adopts the water cooling protection insulator, can guarantee that insulator does not damage because of welding high temperature.

Step 3 is connected upper and

lower cover body

51,52 respectively with these upper and lower connecting

plate

31,32 respective fixation.

The manufacture craft of the liquid heater of second and third embodiment of the present invention is identical with first embodiment, and improvements all are the difference of welding procedure, promptly carries out in tank, does not do at this and gives unnecessary details.

The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to technical scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection domain of accompanying Claim of the present invention.

Claims

1. a liquid heater is characterized in that, comprising: body, two fixed heads being located at the connecting plate at body two ends and the lid of fixedlying connected with this two connecting plate respectively and being fixed in the body both sides respectively; Body comprise several water pipes, several flat heating element heaters and be located at water pipe and heating element heater between insulator, the two ends of several water pipes are respectively equipped with water inlet and delivery port, correspondence is provided with through hole on two connecting plates, water pipe is by being fixedly welded between two connecting plates, be formed with clearance space between two adjacent water pipes, heating element heater and insulator are folded in the clearance space; Lid is provided with intake tunnel and exhalant canal, is provided with flowing lumen in it, and described several water pipes are communicated with by flowing lumen, and is communicated with intake tunnel and exhalant canal.

2. liquid heater according to claim 1, it is characterized in that, described connecting plate comprises the upper junction plate of being located at the body top and the lower connecting plate of being located at the body below, and described lid comprises to be located at the upper cover body of fixedlying connected with upper junction plate the body top and to be located at the lower cover of fixedlying connected with lower connecting plate in the body below.

3. liquid heater according to claim 2 is characterized in that, is provided with flowing lumen in the described upper cover body, and the corresponding end provided thereon of described exhalant canal is also coupled logical; Be provided with down flowing lumen in the described lower cover, corresponding its lower end and coupled logical of being located at of described intake tunnel; The lower end of described several water pipes is provided with water inlet, is connected with following flowing lumen, and its upper end sets out the mouth of a river, is connected with last flowing lumen, and current form in parallel the connection between several water pipes.

4. liquid heater according to claim 2 is characterized in that, described intake tunnel is located at a side of upper cover body, and the one end is used for external water inlet pipe, and the water inlet of the other end and the water pipe that is positioned at this side is corresponding to be provided with and to be connected; Described exhalant canal is located at the opposite side of upper cover body, and the one end is used to pick out water pipe, and the delivery port of the other end and the water pipe that is positioned at this side is corresponding to be provided with and to be connected; Described several water pipes comprise at least one the first tube connectors and at least one the second tube connectors, wherein, the water inlet of first tube connector end provided thereon, delivery port is located at the lower end, the water inlet of second tube connector is located at its lower end, delivery port is located at the upper end, and the delivery port of first tube connector is communicated with by the flowing lumen of being located in the lid with the water inlet of adjacent second tube connector, and first tube connector and second tube connector are arranged alternately; Current form series connection and are communicated with between several water pipes.

5. liquid heater according to claim 2 is characterized in that, described intake tunnel and exhalant canal are located at respectively on outermost two water pipes of body.

6. liquid heater according to claim 2, it is characterized in that, corresponding several bolts hole that is provided with between described upper junction plate and the upper cover body, corresponding several bolts hole that is provided with between lower connecting plate and the lower cover, by bolt upper junction plate is fixedlyed connected with upper cover body, lower connecting plate is fixedlyed connected with lower cover; And the contact-making surface of described upper junction plate and upper cover body, lower connecting plate and lower cover is provided with several sealing gaskets.

7. liquid heater according to claim 1 is characterized in that, left-right symmetry is provided with four connecting portions on the described fixed head, and connecting portion is provided with connecting hole, connects by stay bolt is corresponding, and body is anchored between two fixed heads.

8. liquid heater according to claim 1 is characterized in that described water pipe is made of metal, and described heating element heater is the semiconductor heating element heater.

9. a technology of making liquid heater as claimed in claim 1 is characterized in that, comprises the steps:

Step 2, body is placed tank, one end of several water pipes surface with connecting plate on corresponding welding of several through holes, and then the other end of several water pipes surfaced, with corresponding welding of several through holes on another connecting plate, in this process, be arranged at insulator between water pipe and the heating element heater and must all be immersed in below the water surface in the tank;