CN2384107Y - Cross flow steam boiler with double water level control - Google Patents
Cross flow steam boiler with double water level control Download PDFInfo
- Publication number
- CN2384107Y CN2384107Y CN 99229146 CN99229146U CN2384107Y CN 2384107 Y CN2384107 Y CN 2384107Y CN 99229146 CN99229146 CN 99229146 CN 99229146 U CN99229146 U CN 99229146U CN 2384107 Y CN2384107 Y CN 2384107Y
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- water level
- electrode
- surge drum
- steam boiler
- boiler
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Abstract
The utility model relates to a cross flow steam boiler furnace with water level control. The utility model comprises a furnace body of a cross flow steam boiler furnace, wherein, a ring type range tube is arranged in the furnace body, and one side of the furnace body is provided with a balance drum and a water level gauge. The utility model is characterized in that the other side of the furnace body is provided with the other water level gauge and a balance drum thereof; the upper and the lower ends of the balance drum are respectively connected with leading-out tubes of the water level gauge at the upper and the lower ends of the side corresponding to the furnace body; the water level gauge is connected with the balance drum, and the lower end of the lowest electrode in every electrode in the balance drum is higher than the lower end of any electrode in an original balance drum.
Description
The utility model relates to a kind of automatic steam boiler, particularly a kind of automatic steam boiler with water level control.
The height of water level of existing automatic steam boiler and control mode are the difficult problems of boiler industry always, see Fig. 1, because the design feature of automatic steam boiler, its water level meter 6 is drawn from upper collecting chamber 1, the next part case 2 of boiler, and water level meter 6 links to each other with the upper and lower fairlead 7,8 of boiler by surge drum 5.The water level of the demonstration of water level meter 6 and balance 5 inner control electrode d, e, f are in the middle part of boiler tubulation 3.Because the inhomogeneities of being heated of each pipe 3 of boiler, the uncertainty that the water level that water level meter 6 is shown and the real water level height in each pipe 3 are different this height of water level reveals certain rules with the change list of boiler load: on average be higher than the water level in the water level meter 6 during big fire burns in the pipe; During underload, mean water is higher than the water level in the water level meter 6 in the pipe; Mean water approximates the water level in the water level meter 6 in the startup stage pipe.
Just owing to this reason, owing to water level in managing is lower, the boiler tube on waterline top can not get sufficient cooling to boiler when startup and underload, and working condition is more abominable, the problem that forms the thermal stress fatigue on water pipe top easily and take place to corrode.
See shown in Figure 1; the method that the tradition automatic steam boiler is taked the maintenance problem of boiler tube is to install a compensating electrode 4 additional in the most bad a certain pipe 3 of condition of work; be independent of the outside water level control of boiler body; carry out that high water level starts or carry out mode such as continuous water feeding when the underload with this electrode 4, to reach the effect of protection pipe 3 for a long time.But because the water entrained by steam rate of automatic steam boiler is higher, compensating electrode 4 is the conducting owing to steam moisture content height often, and the erroneous judgement that produces control system is disconnected, does not reach expected effect, even influences boiler operatiopn and service life.
The purpose of this utility model is exactly to provide a kind of and can effectively protect boiler tube in order to address the above problem, prolonged boiler service life have an automatic steam boiler that two water levels are controlled.
Technical solution of the present utility model:
A kind of automatic steam boiler with two water level controls, it includes the body of heater of automatic steam boiler, be provided with circle formula tubulation in it, side at body of heater is provided with surge drum and water level meter, it is characterized in that opposite side at body of heater is provided with another water level and takes into account its surge drum, the upper and lower end of this surge drum links to each other with the water level meter fairlead of the upper and lower end of body of heater respective side respectively, the water level meter links to each other with surge drum, and the minimum electrode lower end in interior each electrode of surge drum should be higher than the lower end of the arbitrary electrode in the original surge drum of body of heater.
Design of the of the present utility model pair of water level and control mode are a kind of new water level methods for designing; the design designs the automatic steam boiler operating water level with simple scientific methods; be provided with the height and the control method of rational startup and underload protection water level, the service life of having improved boiler tube.The utility model simple, intuitive, features simple structure is reliable, can play the protection safe operation of the boiler, the effect in prolonged boiler service life.
Fig. 1 is the structural representation of the automatic steam boiler of existing band water level control.
Fig. 2 is a structural representation of the present utility model.
As Fig. 2, the utility model includes the body of heater of automatic steam boiler, be provided with circle formula tubulation 3 in it, side at body of heater is provided with surge drum 5 and water level meter 6, characteristics of the present utility model are, opposite side at body of heater is provided with another water level meter 9 and surge drum 10 thereof, the upper and lower end of surge drum 10 links to each other with the water level meter fairlead 11,12 of the upper and lower end of body of heater respective side respectively, water level meter 9 links to each other with surge drum 10, and the minimum electrode lower end in surge drum 10 interior each electrode should be higher than the lower end of the arbitrary electrode in the aforementioned surge drum 5.
The utility model design has two independently surge drums 5 and 10 and water level meter 6 and 9, water level meter 6,9 is connected on separately the surge drum 5,10, surge drum 5 is different with 10 height, purpose is inaccurate in order to prevent the long location of causing of electrode, three electrodes respectively are installed in each surge drum, be to be provided with d, e, f electrode in the surge drum 5, be provided with a, b, c electrode in the surge drum 10.The mounting distance L1 of each electrode and L2 determine according to theoretical and actual test value in two water level meters 6,9 and the surge drum 5,10.
The utility model is two sections fire burns by burner, and water supply modes step-by-step formula feeds water and illustrates.
Each electrode length of the utility model is respectively a, b, c, d, e, f from high to low, further specifies the two water level control modes of automatic steam boiler in conjunction with Fig. 2, and water level operation automatic control mode is to realize according to following logical order:
1, water pump feeds water to high water level b point during the startup of boiler.
2, behind the boiler startup at little fire burns, water pump began feedwater when water level dropped to the c point, water pump stopped to feed water when water level rose to b point, promptly water level moves between b point and c point.
3, the little fire burns of boiler is when pressure rises to certain pressure, and the little fire of burner is converted to big fire burns, and water level drops to beginning water pump feedwater behind the e, and water level rises to d point back water pump and stops feedwater, promptly moves between water level d point and e point.
4, the big fire burns of boiler is when pressure rises to certain pressure, and big fire is converted to little fire burns, and water pump begins feedwater, and after water level rose to b point, water pump stopped feedwater, and water pump began to feed water when water level dropped to the c point.
The f electrode is the low water level guard electrode.
The a electrode is a underload extreme high water level guard electrode.
Claims (1)
1, a kind of automatic steam boiler with two water level controls, it includes the body of heater of automatic steam boiler, be provided with circle formula tubulation in it, side at body of heater is provided with surge drum and water level meter, it is characterized in that opposite side at body of heater is provided with another water level and takes into account its surge drum, the upper and lower end of this surge drum links to each other with the water level meter fairlead of the upper and lower end of body of heater respective side respectively, the water level meter links to each other with surge drum, and the minimum electrode lower end in interior each electrode of surge drum should be higher than the lower end of the arbitrary electrode in the original surge drum of body of heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229146 CN2384107Y (en) | 1999-08-13 | 1999-08-13 | Cross flow steam boiler with double water level control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229146 CN2384107Y (en) | 1999-08-13 | 1999-08-13 | Cross flow steam boiler with double water level control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2384107Y true CN2384107Y (en) | 2000-06-21 |
Family
ID=34018424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99229146 Expired - Fee Related CN2384107Y (en) | 1999-08-13 | 1999-08-13 | Cross flow steam boiler with double water level control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2384107Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103842723A (en) * | 2012-03-16 | 2014-06-04 | 三浦工业株式会社 | Separatorless boiler |
-
1999
- 1999-08-13 CN CN 99229146 patent/CN2384107Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103842723A (en) * | 2012-03-16 | 2014-06-04 | 三浦工业株式会社 | Separatorless boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: SHUANGLIANG BOILER CO., LTD., JIANGSU PROV. TO: JIANGSU SHUANGLIANG TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Jiangsu Shuangliang Science &. Technology Co., Ltd. Patentee before: Shuangliang Boiler Co., Ltd. Jiangsu |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |