GB549408A - Improvements in and relating to feed water heaters and to the control of the supply of water thereto - Google Patents
Improvements in and relating to feed water heaters and to the control of the supply of water theretoInfo
- Publication number
- GB549408A GB549408A GB1122041A GB1122041A GB549408A GB 549408 A GB549408 A GB 549408A GB 1122041 A GB1122041 A GB 1122041A GB 1122041 A GB1122041 A GB 1122041A GB 549408 A GB549408 A GB 549408A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- chamber
- pressure
- inlet
- bypass
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/36—Water and air preheating systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Safety Valves (AREA)
Abstract
549,408. Fluid-pressure servomotor-control systems. SCOTT, W. P., and WORTHINGTONSIMPSON, Ltd. Sept. 2, 1941, No. 11220. [Class 135] In means for controlling supply to feed water heaters comprising inlet and bypass valves, the former being open and the latter closed till a relief valve is opened, the relief valve is held closed by water pressure until released by means actuated by flooding of the heater casing. The inlet valve 23, Fig. 1, is carried by a piston 25 which has a valve surface 26 for controlling the bypass passage 22 and is normally retained in the position shown by pressure admitted to the cylinder 28 through a passage 29 having an adjustable control valve 30. When water rises to a predetermined level in a chamber 1 connected to the heater casing, a float rises to put a pressure liquid supply pipe 11 to exhaust through a pipe 10, thus reducing the pressure in a chamber 40 so that a spring 36 opens a relief valve 32, thus causing closure of the inlet valve 23 and opening of the bypass valve 26. The float in the chamber 1 is locked in its upper position and reset by a handle 1b. A battery of heaters in series may each have a float chamber, and a single unit comprising the inlet and bypass valves. Manually operated valves enable a faulty heater to be isolated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1122041A GB549408A (en) | 1941-09-02 | 1941-09-02 | Improvements in and relating to feed water heaters and to the control of the supply of water thereto |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1122041A GB549408A (en) | 1941-09-02 | 1941-09-02 | Improvements in and relating to feed water heaters and to the control of the supply of water thereto |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB549408A true GB549408A (en) | 1942-11-19 |
Family
ID=9982213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1122041A Expired GB549408A (en) | 1941-09-02 | 1941-09-02 | Improvements in and relating to feed water heaters and to the control of the supply of water thereto |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB549408A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2638078A (en) * | 1946-01-07 | 1953-05-12 | G & J Weir Ltd | Liquid level regulator |
-
1941
- 1941-09-02 GB GB1122041A patent/GB549408A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2638078A (en) * | 1946-01-07 | 1953-05-12 | G & J Weir Ltd | Liquid level regulator |
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