CN101210742A - By-pass cooling structure for forcible circulation water-heating boiler - Google Patents
By-pass cooling structure for forcible circulation water-heating boiler Download PDFInfo
- Publication number
- CN101210742A CN101210742A CNA2006101560078A CN200610156007A CN101210742A CN 101210742 A CN101210742 A CN 101210742A CN A2006101560078 A CNA2006101560078 A CN A2006101560078A CN 200610156007 A CN200610156007 A CN 200610156007A CN 101210742 A CN101210742 A CN 101210742A
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- water
- heating surface
- convection
- pass cooling
- water tank
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Abstract
The invention relates to a by-pass cooling mechanism used with a forced-circulation hot water boiler, which can continuously supply water to a circulation system during power failure, so as to realize the refrigeration cycle inside each heated surface, reduce the temperature inside a circulation tube, and prevent a water pipe from being burned with long service life. The by-pass cooling mechanism comprises convection heated surfaces which are convection pipe bundle heated surfaces or coil pipe heated surfaces and conducted in series arrangement, and an air release valve arranged on the top of the convection heated surfaces. The invention is characterized in that the by-pass cooling mechanism further comprises a water tank, downstream tubes connected with the water tank and communicated with the water inlet end and water outlet end of each heated surface, and control valves arranged on the downstream tubes individually.
Description
(1) technical field
The present invention relates to the forced-circulation hot water boiler technical field, be specially the by-pass cooling structure that forced-circulation hot water boiler is used.
(2) background technology
In the forced-circulation hot water boiler, each heating surface of its inside all is communicated with and arranged in series.The advantage of this structure is exactly to guarantee the hot water circuit flow velocity of boiler in when work inside, and it is less the probability that hot-spot burns out to occur.When the shortcoming of this structure occurred having a power failure exactly, water pump quit work, and did not have the supply of cold water, Guan interior not circulation, the temperature in the circulation pipe is higher, and hot vapour row does not fall, and water pipe is burnt out easily.
(3) summary of the invention
At the problems referred to above, the invention provides the by-pass cooling structure that forced-circulation hot water boiler is used, can constantly supply water during power failure to the circulatory system, so that cool cycles can be realized in each heating surface inside, temperature in the circulation pipe is descended, and water pipe is difficult for being burnt out, and service life is longer.
Its technical scheme is such: it comprises convection heating surface, described convection heating surface is convection bank heating surface or heated coil face, arranged in series between the described convection heating surface, the top of described convection heating surface is respectively arranged with vent valve, it is characterized in that: it also comprises water tank, described water tank connects down-comer, and described down-comer is connected respectively with water inlet end, the water side of each heating surface respectively and communicates, and described down-comer is respectively arranged with control valve.
In the said structure of the present invention, each heating surface all is communicated with water tank, in case outage occurs, water tank can form the water circulation with each heating surface, discharge hot vapour so that the temperature of restraining in the heating surface descends, thereby can prevent that the antipriming pipe hot-spot is consequently burnt out.
(4) description of drawings
Fig. 1 is a structural representation of the present invention.
(5) specific embodiment
See Fig. 1, the present invention includes convection heating surface 6, convection heating surface 6 is convection bank heating surface or heated coil face, and it is a plurality of that convection heating surface 6 has, between arranged in series, only expressed 4 among Fig. 1, concrete quantity is decided on the size of boiler.The top of convection heating surface 6 is respectively arranged with vent valve 3.It also comprises water tank 1, and water tank 1 connects down-comer 2, and down-comer 2 has many, and concrete quantity is decided according to the quantity of the convection heating surface 6 of arranged in series.7 have only been expressed among Fig. 1.Down-comer 2 is connected respectively with water inlet end, the water side of each heating surface and communicates, and it is water pump that down-comer 2 is provided with control valve 5,4 respectively.When outage occurring, water pump 4 quits work, the thermal inertia of fuel combustion makes the water in the heating surface tube constantly vaporize, open all control valves 5 this moment, makes to form the water circulation between each heating surface and the water tank, and the steam water interface in the pipe rises and enters water tank, steam is isolated from water tank, and the water in the water tank enters in the pipe of convection heating surface, and temperature descends in the pipe thereby make, and Guan Buhui is burnt out.Arrow among Fig. 1 is represented the flow direction of water respectively, and 7 is communicating pipe.
Claims (1)
1. the by-pass cooling structure used of forced-circulation hot water boiler, it comprises convection heating surface, described convection heating surface is convection bank heating surface or heated coil face, arranged in series between the described convection heating surface, the top of described convection heating surface is respectively arranged with vent valve, it is characterized in that: it also comprises water tank, and described water tank connects down-comer, described down-comer is connected respectively with water inlet end, the water side of each heating surface respectively and communicates, and described down-comer is respectively arranged with control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101560078A CN101210742A (en) | 2006-12-30 | 2006-12-30 | By-pass cooling structure for forcible circulation water-heating boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101560078A CN101210742A (en) | 2006-12-30 | 2006-12-30 | By-pass cooling structure for forcible circulation water-heating boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101210742A true CN101210742A (en) | 2008-07-02 |
Family
ID=39610933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101560078A Pending CN101210742A (en) | 2006-12-30 | 2006-12-30 | By-pass cooling structure for forcible circulation water-heating boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101210742A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1972860A2 (en) * | 2007-03-19 | 2008-09-24 | Sanden Corporation | Hot water supply apparatus |
| CN103175297A (en) * | 2013-04-23 | 2013-06-26 | 董珊 | Water heating boiler |
-
2006
- 2006-12-30 CN CNA2006101560078A patent/CN101210742A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1972860A2 (en) * | 2007-03-19 | 2008-09-24 | Sanden Corporation | Hot water supply apparatus |
| EP1972860A3 (en) * | 2007-03-19 | 2009-09-23 | Sanden Corporation | Hot water supply apparatus |
| CN103175297A (en) * | 2013-04-23 | 2013-06-26 | 董珊 | Water heating boiler |
| CN103175297B (en) * | 2013-04-23 | 2015-05-20 | 董珊 | Water heating boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080702 |