CN204084319U - A kind of safeties of water inlet pipe base and water inlet pipe flange connections in boiler-steam dome - Google Patents
A kind of safeties of water inlet pipe base and water inlet pipe flange connections in boiler-steam dome Download PDFInfo
- Publication number
- CN204084319U CN204084319U CN201420376527.XU CN201420376527U CN204084319U CN 204084319 U CN204084319 U CN 204084319U CN 201420376527 U CN201420376527 U CN 201420376527U CN 204084319 U CN204084319 U CN 204084319U
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- China
- Prior art keywords
- inlet pipe
- water inlet
- boiler
- upper cover
- water
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- Expired - Fee Related
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Abstract
In boiler-steam dome, a kind of safeties for water inlet pipe base and water inlet pipe flange connections, are made up of upper cover and lower cover; Wherein, the structure semicircular in shape of upper cover and interior sky, be also provided with aperture, a semicircular pipeline passageway in the middle part of upper cover, be respectively provided with engaging lug at the right and left of upper cover, each engaging lug is provided with screw; The structure of lower cover and specification are consistent with upper cover, are provided with a drainage pipeline bottom the limit wall of lower cover.Water inlet pipe base and water inlet pipe flange connections in boiler-steam dome, protect water inlet pipe base and water inlet pipe flange connections with the utility model.Water-in flange pad once break down leaks, namely device carries out the water spilt to alter course and collect, make the current of ejection by below the drainage pipeline back boiler ordinary water level that is arranged on device lower cover, and superheater tube cannot be brought into, quite give on boiler superheater safeties, avoid the superheater band water that therefore causes and pipe explosion accident.
Description
Technical field
The utility model belongs to a kind of facilities and equipment in sugaring field, is specifically related to a kind of safeties of water inlet pipe base and water inlet pipe flange connections in a kind of boiler-steam dome.
Technical background
In the boiler plant in sugaring field, when boiler vapour interior arrangement is installed, the inner feed pipe of traditional boiler-steam dome, in order to convenient disassembly, normally be welded on short tube on drum wall be connected with former by the short tube of a band elbow when installing the water inlet pipe of boiler steamdrum inside, bend pipe of wherein intaking connects with the water inlet pipe base flange being welded on Drum Wall in advance, one piece of asbestos washer is added between flange, make outside boiler feedwater after this section of pipe, enter the overflow groove of drum continuously, its operation principle is play the effect of boiler feed water.
Equipment is in running, asbestos washer in the middle of adpting flange is after using after a while, because asbestos washer between flange is aging, asbestos board quality problems or mounting technique level, the fluctuation of the temperature of boiler feed water and inflow, the problem such as corrosion by water in pot, all can cause the damage of asbestos washer.So, asbestos washer damages because of the problem such as aging and bursts apart, cause being divided into stove water in the middle part of pipe directly from the ejection of damage indentation, there, and be the steam-water separator being contained in boiler-steam dome inside on flange top, namely the stove water that enters of ejection brought into boiler superheater tube by the high temperature and high pressure steam that drum top flows into boiler superheater, Here it is people's said " water entrained by steam ", superheater tube is once intake in a large number, after tube interior scaliness acquires a certain degree, pipe is heated inequality, locally occur overheatedly to cause pipe explosion accident, and then be forced to blowing out process.Meanwhile, because asbestos washer between flange is aging, the problem such as quality problems or mounting technique is not easy to find when occurring abnormal, corresponding safeguard also difficult.
2008, Nanhua, Guangxi Tiandong County sugar industry Co., Ltd one one, sugar refinery 25t/h steam boiler is just because asbestos washer damages between water inlet pipe, walk short circuit after boiler feedwater ejection and directly enter drum top steam-water separator, steam-water separator is not separated the large water yield like this, feedwater is brought into superheater tube, cause the overheated booster of superheater incrustation, its adjacent convection bank is hit again in the steam ejection of HTHP, also there are many pipe explosion accidents in convection bank, can only blowing out process be carried out, lose 167 hours altogether; 2009, this factory 75t/h steam boiler is also because water inlet pipe and cyclone separator adpting flange asbestos washer damage the breach that appearance one is about 20mm, walk short circuit after boiler feedwater ejection and directly enter drum top steam-water separator, feedwater is brought into superheater tube, cause the overheated booster of superheater incrustation, blowing out is rushed to repair, and loses 22 hours altogether.
Summary of the invention
In order to overcome the deficiency that existing utility equipment exists, the utility model provides a kind of safeties of water inlet pipe base and water inlet pipe flange connections in brand-new a kind of boiler-steam dome.Specifically comprise: this device is made up of upper cover and lower cover; Wherein, the structure semicircular in shape of upper cover and interior sky, be also provided with aperture, a semicircular pipeline passageway in the middle part of upper cover, be respectively provided with engaging lug at the right and left of upper cover, each engaging lug is provided with screw; The structure of lower cover and specification are consistent with upper cover, are provided with a drainage pipeline bottom the limit wall of lower cover.Water inlet pipe base and water inlet pipe flange connections in boiler-steam dome, protect water inlet pipe base and water inlet pipe flange connections by this device.Water-in flange pad once break down leaks, namely device carries out the water spilt to alter course and collect, make the current of ejection by below the drainage pipeline back boiler ordinary water level that is arranged on device lower cover, and superheater tube cannot be brought into, quite give on boiler superheater safeties, avoid the superheater band water that therefore causes and pipe explosion accident.
The utility model is achieved through the following technical solutions:
A kind of safeties of water inlet pipe base and water inlet pipe flange connections in boiler-steam dome, in technical scheme, this device is made up of upper cover 1 and lower cover 2; Wherein, the structure semicircular in shape of upper cover 1 and interior sky, be also provided with aperture, a semicircular pipeline passageway 3 in the middle part of upper cover 1, be respectively provided with engaging lug 4 at the right and left of upper cover 1, each engaging lug 4 is provided with screw 5; The structure of lower cover 2 and specification are consistent with upper cover 1, are provided with a drainage pipeline 6 bottom the limit wall of lower cover 2.
The utility model tool has the following advantages:
1, scientific structure design of the present utility model is reasonable, measure is unique, effect is remarkable.
2, water inlet pipe base and water inlet pipe flange connections in boiler-steam dome, asbestos washer in the middle of adpting flange is after using after a while, between flange, asbestos washer is aging, asbestos board quality problems or mounting technique level, the temperature of boiler feed water and the fluctuation of inflow, by the problem such as corrosion of water in pot, all can cause the damage of asbestos washer, cause being divided into stove water in the middle part of pipe directly from the ejection of damage indentation, there, and be the steam-water separator being contained in boiler-steam dome inside on flange top, namely the stove water that enters of ejection brought into boiler superheater tube by the high temperature and high pressure steam that drum top flows into boiler superheater, superheater tube is once intake in a large number, after tube interior scaliness acquires a certain degree, pipe is heated inequality, locally occur overheatedly to cause pipe explosion accident, and then be forced to blowing out process.Application the utility model protects water inlet pipe base and water inlet pipe flange connections, to insure device to boiler superheater.Water-in flange pad once break down leaks, namely device carries out the water spilt to alter course and collect, make the current of ejection by below the drainage pipeline back boiler ordinary water level that is arranged on device lower cover, and superheater tube cannot be brought into, quite give on boiler superheater safeties, avoid the superheater band water that therefore causes and pipe explosion accident to occur.
3, the utility model structure is simple, need not drop into too many material during preparation, only needs a small amount of steel plate to bend, reduces Technical investment cost.
4, simple installation during the utility model application, people's a few minutes can install, time saving and energy saving.
5, the utility model is applied, true can overcome existing boiler feed pipe asbestos washer damage cause water entrained by steam to cause the defect of superheater tube booster, reduce superheater tubes burst accident frequency, effectively alleviate its problem that in use blowing out is repaired because of damage that water entrained by steam brings to boiler, the frequency of maintenance of remarkable reduction superheater tube group, improve production efficiency, also reduce production cost simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated;
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of upper cover 1 in the utility model;
Fig. 3 is the structural representation of lower cover 2 in the utility model;
Structural representation when Fig. 4 is the utility model application.
In FIG, 1 is upper cover, and 2 is lower covers, and 3 is holes, pipeline passageway, and 4 is engaging lugs, and 5 is screws, and 6 is drainage pipelines.
Detailed description of the invention
Now by reference to the accompanying drawings the utility model is described in detail:
The utility model is made up of upper cover 1 and lower cover 2.
Shown in Fig. 1 is structural representation of the present utility model.Wherein, 1 is upper cover, and 2 is lower covers, and 3 is holes, pipeline passageway, and 4 is engaging lugs, and 5 is screws, and 6 is drainage pipelines.
Shown in Fig. 2 is the structural representation of upper cover 1 in the utility model.The structure semicircular in shape of upper cover 1 and interior sky, be also provided with hole, a semicircular pipeline passageway 3 in the middle part of upper cover 1, be respectively provided with engaging lug 4 at the right and left of upper cover 1, each engaging lug 4 is provided with screw 5.
Shown in Fig. 3 is the structural representation of lower cover 2 in the utility model.The structure of lower cover 2 and specification are consistent with upper cover 1, are provided with a drainage pipeline 6 bottom the limit wall of lower cover 2.
The utility model Application Example:
Water inlet pipe base and water inlet pipe flange connections in boiler-steam dome, upper cover 1 is enclosed within the top of flange, and lower cover 2 is enclosed within the bottom of flange, wherein feed pipe tightly entangles by the hole, pipeline passageway 3 of upper cover 1 and the hole, pipeline passageway 3 of lower cover 2, the engaging lug 4 of upper cover 1 and lower cover 2 connects, simultaneously two screws 5 also coincide in succession, are then each passed through to tighten in two screws 5 and with nut with screw rod then to form safeties.By this device, the water inlet pipe base easily leaked and water inlet pipe flange connections are protected; its effect is equivalent to the mud guard on wheel top; water-in flange pad once break down leaks; namely the outer cover of device carries out the water spilt to alter course and collect; make the current of ejection by being arranged on below the drainage pipeline 6 back boiler ordinary water level bottom lower cover 2; and superheater tube cannot be brought into; quite give on boiler superheater safeties, avoid the superheater band water that therefore causes and pipe explosion accident.
Through the checking for many years in Nanhua, Guangxi Tiandong County sugar industry Co., Ltd one sugar refinery, to boiler feed pipe, this cover " safeties " of the utility model is installed from November, 2009, three boiler operatiopns so far, occur because of superheater band water pipe explosion accident never again, for the safe operation of boiler, save maintenance cost etc. and play good effect.
Claims (1)
1. a kind of safeties of water inlet pipe base and water inlet pipe flange connections in boiler-steam dome, is characterized in that: this device is made up of upper cover (1) and lower cover (2); Wherein, the structure semicircular in shape of upper cover (1) and interior sky, also aperture, a semicircular pipeline passageway (3) is provided with in the middle part of upper cover (1), respectively be provided with engaging lug (4) at the right and left of upper cover (1), each engaging lug (4) is provided with screw (5); The structure of lower cover (2) and specification are consistent with upper cover (1), are provided with a drainage pipeline (6) bottom the limit wall of lower cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420376527.XU CN204084319U (en) | 2014-07-08 | 2014-07-08 | A kind of safeties of water inlet pipe base and water inlet pipe flange connections in boiler-steam dome |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420376527.XU CN204084319U (en) | 2014-07-08 | 2014-07-08 | A kind of safeties of water inlet pipe base and water inlet pipe flange connections in boiler-steam dome |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204084319U true CN204084319U (en) | 2015-01-07 |
Family
ID=52177033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420376527.XU Expired - Fee Related CN204084319U (en) | 2014-07-08 | 2014-07-08 | A kind of safeties of water inlet pipe base and water inlet pipe flange connections in boiler-steam dome |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204084319U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154524A (en) * | 2014-07-08 | 2014-11-19 | 广西田东南华糖业有限责任公司一糖厂 | Safety device at joint between water inlet pipe base and water inlet pipe flange in boiler drum |
-
2014
- 2014-07-08 CN CN201420376527.XU patent/CN204084319U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154524A (en) * | 2014-07-08 | 2014-11-19 | 广西田东南华糖业有限责任公司一糖厂 | Safety device at joint between water inlet pipe base and water inlet pipe flange in boiler drum |
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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: 20150107 Termination date: 20150708 |
|
| EXPY | Termination of patent right or utility model |