CN205655280U - U -shaped pipe over heater - Google Patents
U -shaped pipe over heater Download PDFInfo
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- CN205655280U CN205655280U CN201620359628.5U CN201620359628U CN205655280U CN 205655280 U CN205655280 U CN 205655280U CN 201620359628 U CN201620359628 U CN 201620359628U CN 205655280 U CN205655280 U CN 205655280U
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- tube
- superheater
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- little header
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Abstract
The utility model provides a U -shaped pipe over heater, belongs to boiler component structure technical field, is, imports the collection case and exports the collection case including superheater tube, it is both ends that superheater tube is located with export collection case branch to import collection case, superheater tube system is including little album of case and duo gen U -shaped pipe, every U -shaped pipe both ends are fixed respectively on two adjacent little album of casees. This U -shaped pipe over heater simple structure, manufacturing, easy maintenance, the security is high, and the thermal deviation is little, and the boiler that can be applicable to the different steam velocities of flow is arranged.
Description
Technical field
This utility model belongs to boiler component technical field of structures, is specifically related to a kind of U-tube superheater.
Background technology
Rectilinear convection superheater the most all arranged by the horizontal flue of Horizontal garbage incinerator, and as shown in Figure 5 and Figure 6, common superheater pattern has 2 kinds: multiloop superheater, bank of tubes formula superheater.
Fig. 5 show for multiloop superheater, when horizontal flue top is provided with fin panel casing, multiloop superheater needs through top water cold wall.Therefore, the pitch of coil is retrained by top water cold wall pitch, and heat transfer and dust stratification to superheater have considerable influence.If horizontal flue top is without fin panel casing, then need top coversheet, pouring fireproof material are installed, in order to formed and seal space.But, the cast of refractory material and the suspended fixing of coil are very inconvenient.Additionally, coil bank of tubes there is also the situation such as inequality, mass flow discrepancy of being heated, it is easily caused coil oxide etch and booster.
Fig. 6 show for bank of tubes formula superheater, and for bank of tubes formula superheater, superheater structure is complicated, manufacture difficulty, and maintenance, integral replacing difficulty are bigger.Additionally, lower header to weld weld bond with bank of tubes many, be in operation, mouth of pipe leakage phenomenon often occur.
Utility model content
For above-mentioned existing issue, this utility model aims to provide a kind of U-tube superheater, simple in construction, manufactures, easy to maintenance, and safety is high, and thermal deviation is little.
Solving above-mentioned technical problem, the technical solution of the utility model is as follows:
A kind of U-tube superheater, including superheater piping, import header and outlet header；Described import header and outlet header are divided into superheater piping two ends；Described superheater piping includes little header and Duo Gen U-tube；Every U-tube two ends are separately fixed in the little header of adjacent two.
Described U-tube is vertically installed in horizontal flue, and many U-tube are horizontal and vertical to be evenly arranged, and U-tube rectangular array is in horizontal flue.
Described little header is the steel pipe that two ends are welded with end cap, described little header horizontally set and the most longitudinally arrangement.
Adjacent little header is connected by top connecting tube, mixed vapour in little header.
Adjacent little header sealing member connects formation sealing surface.
Described sealing member is round steel or band steel, and sealing member both sides all seal with little header welding.
Fixing with pipe clamp in the middle part of described U-tube, elbow, bottom is equipped with comb plate, comb joint；Described pipe clamp vertical equity is arranged, and described comb plate, comb joint transverse horizontal is arranged.
Described U-tube is the single tube circle U-tube taken the shape of the letter U.
Described U-tube is two-tube circle U-tube, takes the shape of the letter U, and including interior pipeloop and outer pipeloop, and the two ends of interior pipeloop and outer pipeloop are fixedly connected with in little header.
This U-tube superheater simple in construction, manufactures, easy to maintenance, and safety is high, and thermal deviation is little, it is possible to be applicable to the layout of boiler of different steam flow rate.The beneficial effects of the utility model are as follows:
1., compared with bank of tubes formula superheater, superheater piping uses the I&M of U-tube, beneficially superheater.During superheater piping booster, it is only necessary to change the U-tube of single damage, it is not necessary to integral replacing；
2. simultaneously, U-shaped superheater piping eliminates lower header, decreases weld bond, reduce fault rate, can prolonged boiler continuous operating time；
3. superheater piping is by the setting of little header, defines effective sealing surface, it is not necessary to pouring fireproof material；
The least header is connected by top connecting tube, and steam mixes in little header.The connected mode using this multitube to introduce, draw, can reduce be heated inequality and the mass flow discrepancy of superheater piping；
5.U shape pipe two ends are respectively welded in adjacent two little headers, it is not necessary to through top water cold wall, its pitch can arbitrarily be arranged；
Elbow, 6.U shape pipe bottom is equipped with comb plate, comb joint, in order to ensure the transverse pitch of piping；Pipe clamp then can ensure the longitudinal pitch of piping.Use fixing device can ensure heating surface pitch, with the corridor that removes smoke, reduce abrasion；
The installation of U-tube superheater and transport the most for convenience, if main group can be divided into superheater piping.When horizontal flue width is bigger, superheater piping can be arranged symmetrically with into 2 parts along boiler centrage, and certain expansion clearance is left in centre；
8. for velocity of flue gas in meeting flue simultaneously, with vapor (steam) velocity in pipe within the required range, U-tube superheater can use single tube circle U-tube or two-tube circle U-tube pattern.
Accompanying drawing explanation
Fig. 1 is the vertical structure schematic diagram of embodiment one；
Fig. 2 is the partial structurtes enlarged diagram of part A in Fig. 1；
Fig. 3 is the transversary schematic diagram of embodiment one；
Fig. 4 is the vertical structure schematic diagram of embodiment two；
Fig. 5 is the structural representation of multiloop superheater；
Fig. 6 is the structural representation of bank of tubes formula superheater；
In figure: 1-superheater piping, 2-import header, 3-outlet header, 4-top connecting tube, 5-U shape pipe, the little header of 6-, 7-pipe clamp, 8-comb plate, comb joint, 9-sealing member.
Detailed description of the invention
Below with reference to accompanying drawing, this utility model is further elaborated.
Describe for convenience, be longitudinally that the flue gas level of horizontal flue flows to, be laterally longitudinal horizontal vertical direction, be vertically horizontal setting vertical direction.
Embodiment one.
A kind of U-tube superheater, is arranged in horizontal flue, and the U-tube superheater of the present embodiment uses single tube circle U-tube pattern.
A kind of U-tube superheater, including superheater piping 1, import header 2 and outlet header 3.Described import header 2 and outlet header 3 are divided into superheater piping 1 two ends.Steam is entered by import header 2, carries out heat exchange by superheater piping 1 and flue gas, saturated vapor is heated into superheated steam, finally enters outlet header 3.
Described superheater piping 1 includes U-tube 5 and little header 6.
Described U-tube 5 is single tube circle U-tube, takes the shape of the letter U, and is vertically installed in horizontal flue.As preferably, described U-tube 5 has many, and many U-tube 5 are horizontal and vertical to be evenly arranged, and U-tube 5 rectangular array is in horizontal flue.
Every U-tube 5 two ends are all welded in adjacent two little headers 6, and U-tube 5 pitch can arbitrarily change.Described little header 6 is welded with the steel pipe of end cap for two ends, and therefore, little header 6 is longitudinally placed equidistant.Adjacent little header 6 is connected by top connecting tube 4, and steam mixes in little header 6.
Adjacent little header 6 sealing member 9 connects formation sealing surface.Described sealing member 9 is round steel or band steel, sealing member 9 both sides all with little header 6 welded seal.Therefore, sealing surface formation sealing space prevents flue gas from revealing, it is not necessary to pouring fireproof material.
Fixing with pipe clamp 7 in the middle part of described U-tube 5, elbow, bottom is equipped with comb plate, comb joint 8.Described pipe clamp 7 is perpendicular to comb plate, comb joint 8.As preferably, described pipe clamp 7 vertical equity is arranged, and described comb plate, comb joint 8 transverse horizontal is arranged.
Pipe clamp 7 and comb plate, comb joint 8 are fixing device, it is ensured that heating surface pitch, with the corridor that removes smoke, reduce abrasion.
When horizontal flue width is bigger, superheater piping 1 can be arranged symmetrically with into 2 parts along boiler centrage, and certain expansion clearance is left in centre.
Embodiment two.
A kind of U-tube superheater, is arranged in horizontal flue, and the U-tube superheater of the present embodiment uses two-tube circle U-tube pattern.
Described U-tube 5 is two-tube circle U-tube, takes the shape of the letter U, and including interior pipeloop and outer pipeloop, and the two ends of interior pipeloop and outer pipeloop are fixedly connected with in little header 6.
Remaining structure of the present embodiment is identical with embodiment one, repeats no more.
The superheater piping of the application uses U-tube, is conducive to manufacture, I&M, is also beneficial to the sealing of flue.For velocity of flue gas in meeting flue simultaneously, with vapor (steam) velocity in pipe within the required range, U-tube superheater can use single tube circle U-tube or two-tube circle U-tube pattern as the case may be.
Claims (9)
1. a U-tube superheater, it is characterised in that include superheater piping (1), import header (2) and outlet header (3)；Described import header (2) and outlet header (3) are divided into superheater piping (1) two ends；Described superheater piping (1) includes little header (6) and many U-tube (5)；Every U-tube (5) two ends are separately fixed on the little header of adjacent two (6).
2. U-tube superheater as claimed in claim 1 a kind of, it is characterised in that described U-tube (5) is vertically installed in horizontal flue, many U-tube (5) are horizontal and vertical to be evenly arranged, and described U-tube (5) rectangular array is in horizontal flue.
3. a kind of U-tube superheater as claimed in claim 1, it is characterised in that described little header (6) is the steel pipe that two ends are welded with end cap, described little header (6) horizontally set and the most longitudinally arrangement.
4. a kind of U-tube superheater as claimed in claim 3, it is characterised in that adjacent little header (6) is connected by top connecting tube (4), mixed vapour in little header (6).
5. a kind of U-tube superheater as claimed in claim 4, it is characterised in that adjacent little header (6) connects formation sealing surface with sealing member (9).
6. U-tube superheater as claimed in claim 5 a kind of, it is characterised in that described sealing member (9) is round steel or band steel, sealing member (9) both sides all with little header (6) welded seal.
7. a kind of U-tube superheater as claimed in claim 1, it is characterised in that described U-tube (5) middle part pipe clamp (7) is fixed, and elbow, bottom is equipped with comb plate, comb joint (8)；Described pipe clamp (7) vertical equity is arranged, and described comb plate, comb joint (8) transverse horizontal is arranged.
8. a kind of U-tube superheater as claimed in claim 1, it is characterised in that described U-tube (5) is the single tube circle U-tube taken the shape of the letter U.
9. a kind of U-tube superheater as claimed in claim 1, it is characterised in that described U-tube is two-tube circle U-tube, takes the shape of the letter U, and including interior pipeloop and outer pipeloop, and the two ends of interior pipeloop and outer pipeloop are fixedly connected with in little header (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620359628.5U CN205655280U (en) | 2016-04-26 | 2016-04-26 | U -shaped pipe over heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620359628.5U CN205655280U (en) | 2016-04-26 | 2016-04-26 | U -shaped pipe over heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205655280U true CN205655280U (en) | 2016-10-19 |
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ID=57401359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620359628.5U Expired - Fee Related CN205655280U (en) | 2016-04-26 | 2016-04-26 | U -shaped pipe over heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205655280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737136A (en) * | 2016-04-26 | 2016-07-06 | 浙江伟明环保股份有限公司 | U-shaped pipe superheater |
-
2016
- 2016-04-26 CN CN201620359628.5U patent/CN205655280U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105737136A (en) * | 2016-04-26 | 2016-07-06 | 浙江伟明环保股份有限公司 | U-shaped pipe superheater |
| CN105737136B (en) * | 2016-04-26 | 2018-08-14 | 浙江伟明环保股份有限公司 | A kind of U-tube superheater |
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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: 20161019 Termination date: 20210426 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |