CN203550741U - Welding-type air heater water inlet-outlet pipe connector - Google Patents
Welding-type air heater water inlet-outlet pipe connector Download PDFInfo
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- CN203550741U CN203550741U CN201320639252.XU CN201320639252U CN203550741U CN 203550741 U CN203550741 U CN 203550741U CN 201320639252 U CN201320639252 U CN 201320639252U CN 203550741 U CN203550741 U CN 203550741U
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Abstract
The utility model relates to a welding-type air heater inlet-outlet pipe connector. A water pipe is respectively connected with a water inlet end and a water outlet end of an air heater water chamber, the connector is of an integrally-molded structure and comprises an upper connector, a lower connector and a transitional section, wherein the upper connector is smoothly connected with the lower connector through the transitional section from top to bottom, the upper connector externally wraps the water pipe and is welded with the water pipe in a matching manner, the lower connector is inserted into the water inlet end and the water outlet end of the water chamber and welded with the water inlet end and the water outlet end of the water chamber; the cross section of the upper connector is in a circular shape, and the cross section of the lower connector is in a kidney shape; the cross section of the connector is in a funnel shape; a step for bearing the water pipe is arranged in the upper connector, and the step is connected with an upper port of the transitional section. Compared with the prior art, the production procedure is simple, the production efficiency is high, fewer assembling components are needed, convenience in assembling is realized, and not only can the cost be reduced, but also the reliability in sealing performance can be realized.
Description
Technical field
The utility model relates to a kind of water pipe head, especially relates to a kind of welded type steam air heater water inlet pipe and water outlet pipe joint.
Background technology
Along with the development of steam air heater industry, people are also improving constantly steam air heater performance requirement, and steam air heater moves towards the trend that quality is light, volume is little, heat dispersion is high, flow resistance is little gradually.As shown in Figure 1, steam air heater is formed by core body 1-1, hydroecium 1-2, bend pipe 1-3 and joint 1-4 assembly welding, the left and right end of steam air heater core body 1-1 is installed hydroecium 1-2, at the turnover water end (W.E.) erection joint 1-4 respectively of this hydroecium 1-2, and two joint 1-4 bridge piece 1-3 respectively.As Figure 2-3, the top connection of joint 1-4 is notch cuttype cylindrical wide at the top and narrow at the bottom, and this top connection inside is provided with two-stage for accepting the step of bend pipe 1-3, and lower contact is set in outside the turnover water end (W.E.) of hydroecium 1-2, and is welded to connect with hydroecium.But, there is following defect in such joint: 1) processed complex, need six procedures, first operation is joint blanking forming for the first time, and second operation work is punching integer, three process is joint blanking forming for the second time, the 4th procedure is punching, and five processes is punching integer, and the 6th procedure is trimming, during due to part production and processing, workpiece will be through twice blanking forming, makes part wall cause attenuation cracking phenomena because being out of shape; 2) due to the difference of multiple design of part processing, while causing assembling, joint and hydroecium assembling place have cavitation, when entering stove welding, easily there is rosin joint, dry joint phenomenon, cause place, gap to be leaked, and because joint wraps on hydroecium Inlet and outlet water port, increased the risk of leaking outward; 3) if this joint runs into undercut to be leaked, when using core body for the second time, undercut intensity can decline again, finally causes steam air heater normally to use.
Utility model content
The purpose of this utility model is exactly to provide a kind of welded type steam air heater water inlet pipe and water outlet pipe joint in order to overcome the defect that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions: a kind of welded type steam air heater water inlet pipe and water outlet pipe joint, respectively water pipe is connected with the turnover water end (W.E.) of steam air heater hydroecium, it is characterized in that, the described joint structure that is formed in one, comprise top connection, lower contact and changeover portion, described top connection is from top to bottom by changeover portion and lower contact smooth connection, described top connection encases water pipe outward, and mate welding with water pipe, described lower contact is inserted in the turnover water end (W.E.) of hydroecium, and welds with the turnover water end (W.E.) of hydroecium.
Described top connection cross section is circular, and described lower contact cross section is kidney-shaped.
Described joint section is infundibulate.
In described top connection, be provided with the step for accepting water pipe, this step is connected with the upper port of described changeover portion.
The section of the one side that described changeover portion is connected with the narrow limit of lower contact is wide at the top and narrow at the bottom trapezoidal, and the section of the one side that described changeover portion is connected with lower contact broadside is up-narrow and down-wide trapezoidal.
Compared with prior art, the utlity model has following advantage:
1, part production and processing is simple and practical, and manufacturing procedure only needs three steps, not only cost-saving, and production efficiency is high;
2, the utility model Assembly part is few, is convenient to assembling, after joint and hydroecium Assembly of the parts, rivets, and fits tightly between the two, has greatly improved welding stability and reliability, thereby has increased sealing reliability;
3, the hydroecium Inlet and outlet water port that the utility model is applicable to full aluminium radiator and steam air heater is connected, and funnel-shaped structure makes hydroecium turnover water yield speed not disturbed by joint, and external elbow pipe welding is convenient, has greatly improved practical function.
Accompanying drawing explanation
Fig. 1 is outline drawing (a, the front view of prior art steam air heater; B, side view);
Fig. 2 is structural representation (a, the side view of prior art joint; B, front view; C, A-A view; D, top view);
Fig. 3 is structural representation of the present utility model (a, front view; B, side view; C, upward view; D, top view);
Fig. 4 the utility model is for outline drawing (a, the front view of steam air heater; B, side view);
Fig. 5 is the enlarged diagram at I place in Fig. 4;
Fig. 6 is processing second operation work figure of the present utility model;
Fig. 7 is processing three process figure of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
As Figure 4-Figure 6, a kind of welded type steam air heater water inlet pipe and water outlet pipe joint, respectively the turnover water end (W.E.) of steam air heater hydroecium 2-1 is connected with water pipe 2-2, it is characterized in that, the described joint structure that is formed in one, comprise top connection 1, lower contact 2 and changeover portion 3, the cross section of described top connection 1 is circular, described lower contact 2 cross sections are kidney-shaped, described top connection 1 is from top to bottom by changeover portion 3 and lower contact 2 smooth connections, described water pipe 2-2 coaxially embeds in top connection 1, the outer water pipe 2-2 that encases of described top connection 1, and mate welding with water pipe 2-2, described lower contact 2 is inserted in the turnover water end (W.E.) of hydroecium 2-1, and weld with the turnover water end (W.E.) of hydroecium 2-1.Described joint section is infundibulate.In described top connection 1, be provided with the step 11 for accepting water pipe 2-2, this step 11 is connected with the upper port of described changeover portion 3.The section of the one side that described changeover portion 3 is connected with the narrow limit of lower contact 2 is wide at the top and narrow at the bottom trapezoidal, and the section of the one side that described changeover portion 3 is connected with lower contact 2 broadsides is up-narrow and down-wide trapezoidal.
The mould that the utility model welded type steam air heater water inlet pipe and water outlet pipe joint machining is used is two pairs, respectively joint reducing die and joint flaring die, manufacturing procedure only needs three steps: first operation is saw pipe, is about to that blank circle aluminum pipe is sawed-off obtains making the required pipe M of joint; Second operation work is for utilizing joint reducing die processing lower contact 2, as shown in Figure 7; Three process is for utilizing joint flaring die processing top connection, as shown in Figure 8.
As shown in Figure 4, assembling is used steam air heater of the present utility model to comprise the following steps: first, by after the core body Assembly of the parts such as main leaf 2-3, radiating tube 2-4, heat-radiation belt 2-5, side plate 2-6, core body is welded, to be welded qualified after, by bend pipe 2-2, the parts such as joint A and hydroecium 2-1 and core body assembling, then enter soldering oven welding, because main leaf and heat-radiation belt are alusil alloy, its fusing point is 577 ℃, side plate and heat-radiation belt adopt almag, its fusing point is 643 ℃～654 ℃, the fusing point that uses steam air heater of the present utility model to weld required brazing flux (FLUCS) is 565 ℃～572 ℃, when the scaling powder oxidation during at 565 ℃～572 ℃ of soldering oven furnace temperature, during again to 577 ℃, the main leaf oxidation of almag is flowed, and then accumulation solder joint, make up the gap between main leaf and joint.Use steam air heater of the present utility model not only to reduce the requirement to assembling fusing point, and can effectively solve gap problem, avoid leaking.
According to statistics, obtain, compared with prior art, the joint of production prior art, the first-time qualification rate of product is 40%, product rejection rate is 40%; Produce the utility model joint, the first-time qualification rate of product is 99.99%, and product rejection rate is 0.01%; If company's annual production is 200,000, every product is 200 yuan/platform, and the economic benefit that the street corner of production prior art produces is 3,200 ten thousand yuan, and the economic benefit of production the utility model product is 40,000,000 yuan.And, produce whole operation of the present utility model and only by one section of pipe punching press, made, simple and practical, not only cost-saving, and also production efficiency is high.
Claims (5)
1. a welded type steam air heater water inlet pipe and water outlet pipe joint, respectively water pipe is connected with the turnover water end (W.E.) of steam air heater hydroecium, it is characterized in that, the described joint structure that is formed in one, comprises top connection, lower contact and changeover portion, and described top connection is from top to bottom by changeover portion and lower contact smooth connection, described top connection encases water pipe outward, and mate welding with water pipe, described lower contact is inserted in the turnover water end (W.E.) of hydroecium, and welds with the turnover water end (W.E.) of hydroecium.
2. a kind of welded type steam air heater water inlet pipe and water outlet pipe joint according to claim 1, is characterized in that, described top connection cross section is circular, and described lower contact cross section is kidney-shaped.
3. a kind of welded type steam air heater water inlet pipe and water outlet pipe joint according to claim 1, is characterized in that, described joint section is infundibulate.
4. a kind of welded type steam air heater water inlet pipe and water outlet pipe joint according to claim 1, is characterized in that, is provided with the step for accepting water pipe in described top connection, and this step is connected with the upper port of described changeover portion.
5. a kind of welded type steam air heater water inlet pipe and water outlet pipe joint according to claim 1, it is characterized in that, the section of the one side that described changeover portion is connected with the narrow limit of lower contact is wide at the top and narrow at the bottom trapezoidal, and the section of the one side that described changeover portion is connected with lower contact broadside is up-narrow and down-wide trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320639252.XU CN203550741U (en) | 2013-10-16 | 2013-10-16 | Welding-type air heater water inlet-outlet pipe connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320639252.XU CN203550741U (en) | 2013-10-16 | 2013-10-16 | Welding-type air heater water inlet-outlet pipe connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203550741U true CN203550741U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320639252.XU Expired - Fee Related CN203550741U (en) | 2013-10-16 | 2013-10-16 | Welding-type air heater water inlet-outlet pipe connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203550741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567520A (en) * | 2013-10-16 | 2015-04-29 | 上海德朗汽车零部件制造有限公司 | Welded type air heater water inlet/outlet pipe connector |
-
2013
- 2013-10-16 CN CN201320639252.XU patent/CN203550741U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567520A (en) * | 2013-10-16 | 2015-04-29 | 上海德朗汽车零部件制造有限公司 | Welded type air heater water inlet/outlet pipe connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20201016 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |