GB1488563A - Evaporative cooling method using natural circulation of cooling water - Google Patents
Evaporative cooling method using natural circulation of cooling waterInfo
- Publication number
- GB1488563A GB1488563A GB1836275A GB1836275A GB1488563A GB 1488563 A GB1488563 A GB 1488563A GB 1836275 A GB1836275 A GB 1836275A GB 1836275 A GB1836275 A GB 1836275A GB 1488563 A GB1488563 A GB 1488563A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cooling
- cooling water
- water
- drum
- riser
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D5/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, using the cooling effect of natural or forced evaporation
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
1488563 Furnace cooling systems; boilers NIPPON KOKAN KK 2 May 1975 [20 May 1974 27 Sept 1974] 18362/75 Headings F4B F4A and F4U In a method of cooling apparatus such as a furnace 3 using a natural circulation evaporative cooling system comprising a steam separator drum 1, a downcomer 2, a cooling pipe 4 and a riser 5, with the amount of make-up cooling water added to the system corresponding to the quantity of steam generated within the system and discharged from the separator drum 1 through a line 10, the cooling water in the cooling pipe 4 is maintained in a completely liquid state, with evaporation of part of said cooling water taking place only in said riser 5 and said steam separator drum 1, by selecting system parameters to satisfy the following formula where Q = thermal load acting on the cooling pipe, V = amount of cooling water circulating in the cooling pipe, # = density of the cooling water, c=specific heat of the cooling water, P h3 =pressure of cooling water in the uppermost part of the cooling pipe, P 0 =pressure in the separator drum, and #T eg (P 0 ,P h3 ) = the boiling equilibrium temperature difference between P 0 and P h3 and wherein at least part of the makeup cooling water is introduced into the downcomer 2 of the system. The cooling system additionally includes downcomer and riser headers 7 and 8, thermometers 15 and 16, and manometers 13 and 14. As shown the make-up water is wholly introduced into an auxiliary drum (17, Fig. 4, not shown) in the middle of the downcomer 2. Alternatively part may be introduced into the main drum 1 and part into the auxiliary drum (17 see Fig. 4, not shown); the proportion supplied to each may be regulated in dependence of vapour volume measuring devices (20A, 20B) located at different levels in the riser 5. Alternatively, as shown in Fig. 5, the cooling water may be made-up continuously by sensing any deviation of the water level within the main drum 1 from a predetermined value and accordingly selectively adding make-up water to the main and/or auxiliary drums 1 and 17. The amount of water to be replenished is measured by a steam flow meter 21, and the measured value, together with the difference between the actual level of water in the drum 1 and the predetermined level, as measured by a pressure gauge 22, is fed into a programmer unit 23; actuating signals are then fed to a water feed valve 11 and/or a supplementary valve 18. When a plurality of cooling pipes are used (see Fig. 7, not shown), to ensure that the cooling water is maintained in a liquid state in all of the pipes, each pipe is provided with a flow rate regulating valve (24) at its inlet end and a temperature sensor (25) at its outlet end, the flow rate of cooling water in each of the pipes being adjusted in dependence of the measured outlet temperature, so that all the outlet temperatures of cooling water in said pipes are equal.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5537974A JPS50147413A (en) | 1974-05-20 | 1974-05-20 | |
JP11046074A JPS5137869A (en) | 1974-09-27 | 1974-09-27 | Jizenjunkan nyoru johatsureikyakuhoho |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1488563A true GB1488563A (en) | 1977-10-12 |
Family
ID=26396281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1836275A Expired GB1488563A (en) | 1974-05-20 | 1975-05-02 | Evaporative cooling method using natural circulation of cooling water |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE2522245C3 (en) |
FR (1) | FR2272351B1 (en) |
GB (1) | GB1488563A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102012165A (en) * | 2010-10-23 | 2011-04-13 | 郴州市国大有色金属冶炼有限公司 | Unpowered self-circulating water-cooling device for blast furnace |
CN110580062A (en) * | 2019-08-20 | 2019-12-17 | 清远市拼果果环保科技有限公司 | Water level balance control method for wet scraper slag conveyor |
CN113864977A (en) * | 2021-09-30 | 2021-12-31 | 珠海格力电器股份有限公司 | Cooling system, temperature control method and device thereof, equipment and air conditioning system |
CN114377663A (en) * | 2021-12-13 | 2022-04-22 | 温州一霖再生资源有限公司 | Useless active carbon regeneration cooling system |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2934421A1 (en) * | 1979-08-25 | 1981-03-19 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen | USE OF A COOLING CIRCUIT FOR EVAPORATIVE COOLING OF A METALLURGICAL OVEN OR THE LIKE. |
DE2934448A1 (en) * | 1979-08-25 | 1981-03-26 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen | USE OF A COOLING CIRCUIT FOR EVAPORATIVE COOLING OF A SHAFT |
ATE26015T1 (en) * | 1983-04-12 | 1987-04-15 | Bbc Brown Boveri & Cie | METHOD AND DEVICE FOR COOLING OVENS. |
CN108679603A (en) * | 2018-08-31 | 2018-10-19 | 刘学冰 | A kind of circulating fluidized bed boiler circulating ratio and grey balance regulator control system and method |
-
1975
- 1975-05-02 GB GB1836275A patent/GB1488563A/en not_active Expired
- 1975-05-20 DE DE19752522245 patent/DE2522245C3/en not_active Expired
- 1975-05-20 FR FR7515669A patent/FR2272351B1/fr not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102012165A (en) * | 2010-10-23 | 2011-04-13 | 郴州市国大有色金属冶炼有限公司 | Unpowered self-circulating water-cooling device for blast furnace |
CN102012165B (en) * | 2010-10-23 | 2012-07-04 | 郴州市国大有色金属冶炼有限公司 | Unpowered self-circulating water-cooling device for blast furnace |
CN110580062A (en) * | 2019-08-20 | 2019-12-17 | 清远市拼果果环保科技有限公司 | Water level balance control method for wet scraper slag conveyor |
CN110580062B (en) * | 2019-08-20 | 2022-07-05 | 刘雨嫣 | Water level balance control method for wet scraper slag conveyor |
CN113864977A (en) * | 2021-09-30 | 2021-12-31 | 珠海格力电器股份有限公司 | Cooling system, temperature control method and device thereof, equipment and air conditioning system |
CN114377663A (en) * | 2021-12-13 | 2022-04-22 | 温州一霖再生资源有限公司 | Useless active carbon regeneration cooling system |
CN114377663B (en) * | 2021-12-13 | 2024-04-19 | 温州一霖再生资源有限公司 | Useless active carbon regeneration cooling system |
Also Published As
Publication number | Publication date |
---|---|
DE2522245B2 (en) | 1979-03-01 |
DE2522245A1 (en) | 1975-12-04 |
DE2522245C3 (en) | 1979-10-25 |
FR2272351A1 (en) | 1975-12-19 |
FR2272351B1 (en) | 1977-12-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |