CN202032561U - Flute pipe spray type attemperator - Google Patents
Flute pipe spray type attemperator Download PDFInfo
- Publication number
- CN202032561U CN202032561U CN2011200883035U CN201120088303U CN202032561U CN 202032561 U CN202032561 U CN 202032561U CN 2011200883035 U CN2011200883035 U CN 2011200883035U CN 201120088303 U CN201120088303 U CN 201120088303U CN 202032561 U CN202032561 U CN 202032561U
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- CN
- China
- Prior art keywords
- bourdon
- tube
- neck bush
- cylindrical shell
- gripper shoe
- Prior art date
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Abstract
The utility model relates to a flute pipe spray type attemperator which comprises a barrel, an inner bushing and a supporting plate; the inner bushing is arranged in the barrel; the supporting plate is fixedly connected with the barrel and connected with one end of the inner bushing, namely the inner bushing in the axial direction of the flute pipe spray type attemperator is fixed; at one side where the supporting plate is connected with the inner bushing, an opening is arranged on the barrel and inserted by a flute pipe installed; and a baffle is further arranged between the supporting plate and the flute pipe and plays roles in supporting the flute pipe and avoiding direct rush of steam on the flute pipe. For the flute pipe spray type attemperator, the inner bushing is fixed and limited by utilizing the supporting plate, so that the problem that the strength of the barrel is weakened in the prior art due to excessive bolt holes on the barrel, the structure is simple, the manufacture is convenient and the use is safe.
Description
Technical field
The utility model relates to a kind of spray desuperheating device, relates in particular to a kind of bourdon's tube direct-contact desuperheater, and it is applicable in the station boiler temperature reducing system, belongs to spray desuperheating device technique field.
Background technology
Attemperator is to be used for the important device of the vapor (steam) temperature in the steam regulation boiler.In the thermal power plant,, can make parts damages such as boiler turbine or cause a serious accident if there is not attemperator just the vapor (steam) temperature of boiler export can't be controlled in the rated range.In the prior art, the adjusting of vapor (steam) temperature can be divided into two big classes: fume side is regulated and steam side is regulated.Here the direct-contact desuperheater of being mentioned is the main means of steam side steam regulation temperature.
As shown in Figure 1, be the structural representation of boiler bourdon's tube direct-contact desuperheater in the prior art.In the cylindrical shell 1 ' of direct-contact desuperheater, be provided with the neck bush 2 ' of thin-walled, its objective is that the halfway desuperheat water droplet of avoiding atomizing impacts the direct heat of heavy wall header or connecting pipe inwall.When thicker desuperheating water drops onto neck bush 2 ' and goes up, because the accumulation of heat inertia of neck bush 2 ' is little, water droplet is gasified rapidly, it is little to go up the thermal stress that produces at neck bush 2 '.In the end of neck bush 2 ', cylindrical shell 1 ' is connected with neck bush 2 ' by using set bolt 5 ' near bourdon's tube 4 ' nozzle place.And the other end of neck bush 2 ' is a free end, can free wxpansion, neck bush 2 ' is positioned by bolt 3 ' in free end and middle part (perhaps other appropriate positions) of neck bush 2 '.The end of bourdon's tube 4 ' then utilizes carrying bolt 7 ' and end plug 6 ' to withstand bourdon's tube 4 ', makes bourdon's tube 4 ' produce crooked even fracture to prevent the counter-force that bourdon's tube 4 ' produces when spraying water.
The shortcoming of employed bourdon's tube direct-contact desuperheater is in the above-mentioned prior art:
1, because to need some bolts 3 ', set bolt 5 ' and carrying bolt 7 ' respectively neck bush 2 ' and bourdon's tube 4 ' to be positioned fixing, therefore can on cylindrical shell 1 ', offer more bolt hole, thereby make the weakened of cylindrical shell 1 '.
2, in addition, in installation process, the welding quality of various bolts and cylindrical shell 1 ' requires very high, as welds bad then be easy to produce leakage, operating procedure complexity.
When 3, carrying bolt 7 ' being installed, the bolt hole of being offered on cylindrical shell 1 ' need have extraordinary axiality with the center line of bourdon's tube 4 ', otherwise the bending stress that can form an installation after carrying bolt 7 ' is installed acts on the bourdon's tube 4 ', influences quality.
4, in the spray desuperheating process, bourdon's tube 4 ' is directly to be subjected to washing away of high-temperature steam without any protected measure, influences its service life.
The utility model content
The purpose of this utility model provides a kind of bourdon's tube direct-contact desuperheater, it is spacing that it utilizes gripper shoe that neck bush is fixed, thereby effectively solve in the prior art because of cylindrical shell being offered the problem that too much bolt hole causes cylinder strength to die down, and simple in structure, easily manufactured, safe in utilization.
For achieving the above object, the utility model provides a kind of bourdon's tube direct-contact desuperheater, and it comprises: cylindrical shell; Set neck bush in this cylindrical shell; The gripper shoe of fixedlying connected with cylindrical shell, this gripper shoe is connected with an end of described neck bush, promptly neck bush is fixed on the axial direction of bourdon's tube direct-contact desuperheater; A side that is connected with neck bush in described gripper shoe is by to the cylindrical shell perforate and insert the bourdon's tube of installing.
The other end of described neck bush is a free end, passes through some bolts in free end and other positions of neck bush, neck bush and cylindrical shell is connected and fixed, promptly to neck bush positioning in the radial direction at the bourdon's tube direct-contact desuperheater.
Carry out seal welding at described cylindrical shell with the installed position that contacts of bolt.
The junction of described gripper shoe and neck bush is provided with the shoulder face, and the end of neck bush directly is connected on the shoulder face of gripper shoe.
Further, the utility model also is provided with baffle plate between described gripper shoe and bourdon's tube.Fixedly connected between described baffle plate and the gripper shoe.Directly contact between described baffle plate and the bourdon's tube, perhaps leave the expansion clearance.
The tapping of described bourdon's tube and cylindrical shell is fixed by welded seal.
Bourdon's tube direct-contact desuperheater provided by the utility model has following beneficial effect:
1, neck bush utilizes gripper shoe to fix on the axial direction of bourdon's tube direct-contact desuperheater, has saved employed set bolt in the prior art, therefore need not perforate on the attemperator cylindrical shell, can guarantee the intensity of cylindrical shell, and simple in structure, easily manufactured.
2, utilize baffle plate to support bourdon's tube,, saved employed carrying bolt in the prior art to prevent its bending, therefore also need not perforate on cylindrical shell, further guarantee the intensity of cylindrical shell, it is simple to make that the overall structure of bourdon's tube direct-contact desuperheater becomes, and is convenient to make.
3, described baffle plate is not only played a supporting role to bourdon's tube, and it can also avoid steam directly bourdon's tube to be washed away, and bourdon's tube is played a protective role.
4,, thereby can guarantee can not produce erection stress on the bourdon's tube because can preset clearance between baffle plate and the bourdon's tube.
Description of drawings
Fig. 1 is the structural representation of bourdon's tube direct-contact desuperheater of the prior art.
Fig. 2 is the structural representation of the bourdon's tube direct-contact desuperheater in the utility model.
Fig. 3 is the structural representation of the gripper shoe in the utility model.
The specific embodiment
Below in conjunction with Fig. 2～Fig. 3, describe preferred embodiment of the present utility model in detail.
As shown in Figure 2, be the structural representation of bourdon's tube direct-contact desuperheater provided by the utility model.It comprises cylindrical shell 1; Set neck bush 2 in this cylindrical shell 1; One end of described neck bush 2 is connected with gripper shoe 8, and this gripper shoe 8 also is fixedly connected by welding with cylindrical shell 1, thereby realizes neck bush 2 is fixed on the axial direction of bourdon's tube direct-contact desuperheater; In the side that described gripper shoe 8 is connected with neck bush 2, by bourdon's tube 4 is installed in cylindrical shell 1 perforate and insertion, this bourdon's tube 4 is fixed by welded seal with the tapping of cylindrical shell 1.
The other end of described neck bush 2 is free ends, but free wxpansion after it is heated when work; Free end and other appropriate locations (for example medium position of neck bush 2) at neck bush 2 pass through some bolts 3, neck bush 2 and cylindrical shell 1 are connected and fixed, thereby realize neck bush 2 positioning in the radial direction at the bourdon's tube direct-contact desuperheater.
At the contact installed position of described cylindrical shell 1 with bolt 3, need carry out seal welding, accidents caused to prevent cylindrical shell 1 from revealing.
As shown in Figure 3, described gripper shoe 8 is provided with shoulder face 81 with the junction of neck bush 2, and the end of neck bush 2 is directly by being welded to connect on the shoulder face 81 of gripper shoe 8.
Between described gripper shoe 8 and bourdon's tube 4, also be provided with baffle plate 9; This baffle plate 9 is fixedly connected by welding with gripper shoe 8; This baffle plate 9 directly contacts with bourdon's tube 4, perhaps leaves suitable expansion clearance between the two.Described baffle plate 9 can fix bourdon's tube 4 on the one hand, and supports bourdon's tube 4 to prevent its bending, and this baffle plate 9 also can avoid steam directly to wash away bourdon's tube 4 on the other hand, and bourdon's tube 4 is played a protective role.
Described bourdon's tube direct-contact desuperheater can carry out radial location to neck bush 2 earlier by using some bolts 3 that neck bush 2 is fixedlyed connected with cylindrical shell 1 during fabrication.Perforate is inserted bourdon's tube 4 is installed on cylindrical shell 1 then.Then welding fixing assembling with cylindrical shell 1 by gripper shoe 8 and the baffle plate 9 that is welded to connect to integral body; At this moment, can adapt to processing to form shoulder face 81 to gripper shoe 8, also can before assembling gripper shoe 8 and baffle plate 9, process shoulder face 81 earlier, thereby make an end of neck bush 2 can directly be welded to connect on the shoulder face 81 of this gripper shoe 8, and control guarantee directly to contact between baffle plate 9 and the bourdon's tube 4 or to keep certain expansion clearance.
Bourdon's tube direct-contact desuperheater provided by the utility model has following beneficial effect:
1, neck bush utilizes gripper shoe to fix on the axial direction of bourdon's tube direct-contact desuperheater, has saved employed set bolt in the prior art, therefore need not perforate on the attemperator cylindrical shell, can guarantee the intensity of cylindrical shell, and simple in structure, easily manufactured.
2, utilize baffle plate to support bourdon's tube,, saved employed carrying bolt in the prior art to prevent its bending, therefore also need not perforate on cylindrical shell, further guarantee the intensity of cylindrical shell, it is simple to make that the overall structure of bourdon's tube direct-contact desuperheater becomes, and is convenient to make.
3, described baffle plate is not only played a supporting role to bourdon's tube, and it can also avoid steam directly bourdon's tube to be washed away, and bourdon's tube is played a protective role.
4,, thereby can guarantee can not produce erection stress on the bourdon's tube because can preset clearance between baffle plate and the bourdon's tube.
Although content of the present utility model has been done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple modification of the present utility model with to substitute all will be conspicuous.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (6)
1. a bourdon's tube direct-contact desuperheater is characterized in that, comprises:
Cylindrical shell (1);
Neck bush (2), this neck bush (2) are arranged in the described cylindrical shell (1);
The gripper shoe (8) of fixedlying connected with cylindrical shell (1), this gripper shoe (8) also are connected with an end of described neck bush (2), and neck bush (2) is fixed on the axial direction of bourdon's tube direct-contact desuperheater;
Bourdon's tube (4), it is arranged on the side that described gripper shoe (8) is connected with neck bush (2), by cylindrical shell (1) perforate and insertion are installed.
2. bourdon's tube direct-contact desuperheater as claimed in claim 1, it is characterized in that, the other end of described neck bush (2) is a free end, some bolts (3) are passed through in free end and other positions at neck bush (2), neck bush (2) and cylindrical shell (1) are connected and fixed, promptly to neck bush (2) positioning in the radial direction at the bourdon's tube direct-contact desuperheater.
3. bourdon's tube direct-contact desuperheater as claimed in claim 2 is characterized in that, carries out seal welding at described cylindrical shell (1) with the installed position that contacts of bolt (3).
4. bourdon's tube direct-contact desuperheater as claimed in claim 1 is characterized in that, described gripper shoe (8) is provided with shoulder face (81) with the junction of neck bush (2), and the end of neck bush (2) directly is connected on the shoulder face (81) of gripper shoe (8).
5. bourdon's tube direct-contact desuperheater as claimed in claim 4 is characterized in that, between described gripper shoe (8) and bourdon's tube (4), also is provided with baffle plate (9);
Fixedly connected between described baffle plate (9) and the gripper shoe (8);
Directly contact between described baffle plate (9) and the bourdon's tube (4), perhaps leave the expansion clearance.
6. bourdon's tube direct-contact desuperheater as claimed in claim 1 is characterized in that, described bourdon's tube (4) is fixed by welded seal with the tapping of cylindrical shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200883035U CN202032561U (en) | 2011-03-30 | 2011-03-30 | Flute pipe spray type attemperator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200883035U CN202032561U (en) | 2011-03-30 | 2011-03-30 | Flute pipe spray type attemperator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202032561U true CN202032561U (en) | 2011-11-09 |
Family
ID=44894857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200883035U Expired - Lifetime CN202032561U (en) | 2011-03-30 | 2011-03-30 | Flute pipe spray type attemperator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202032561U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588947A (en) * | 2012-02-29 | 2012-07-18 | 哈尔滨锅炉厂有限责任公司 | Temperature reducer of 350MW tangential firing supercritical boiler reheater and temperature reducing method of temperature reducer |
| CN102818253A (en) * | 2012-06-15 | 2012-12-12 | 南京福昌环保有限公司 | Water-spraying type cooling device of boiler super-heater |
-
2011
- 2011-03-30 CN CN2011200883035U patent/CN202032561U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588947A (en) * | 2012-02-29 | 2012-07-18 | 哈尔滨锅炉厂有限责任公司 | Temperature reducer of 350MW tangential firing supercritical boiler reheater and temperature reducing method of temperature reducer |
| CN102588947B (en) * | 2012-02-29 | 2016-02-10 | 哈尔滨锅炉厂有限责任公司 | 350MW tangential firing super critical boiler reheater and desuperheat method |
| CN102818253A (en) * | 2012-06-15 | 2012-12-12 | 南京福昌环保有限公司 | Water-spraying type cooling device of boiler super-heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111109 |