Water seal structure for torch system
A torch system and water seal technology, applied in gas fuel burners, combustion methods, combustion types, etc., can solve problems such as unreliable valve control, major safety accidents, and valves that cannot be opened normally, and achieve rapid and timely removal of water seals. Effect
Active Publication Date: 2011-07-06
SHANGHAI QIYAO THERMAL ENERGY ENG CO LTD
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AI Technical Summary
Problems solved by technology
It takes a certain time for the valve to open, and it also takes a certain time for a large amount of water to flow out through the valve. Therefore, the water seal cannot be removed in time by using valve control.
[0009] 2. The use of valve control is unreliable
When the instrument air system, the valve itself, or the control system fails, the valve cannot be opened normally
[0010] 3. The use of valve control increases the investment in the control system
However, the third option also has the inherent disadvantages of the first option, that is, the use of valve control is not reliable
In particular, it should be pointed out that according to the design idea of Scheme 3, it is necessary to maintain a higher level of water seal for the recovery of flare gas during a small amount of discharge, but when a large amount of discharge occurs, if the valve control system fails to open in time, it will lead to greater safety. ACCIDENT
Method used
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[0024] Please refer to image 3 As shown, the water seal structure 10 of the flare system according to an embodiment of the present invention includes a water seal tank 11 , a water seal tank 12 and a flare gas inlet pipe 13 . In this embodiment, the water-sealed tank 11 is, for example, a horizontal cylindrical structure, and the water-sealed tank has an inlet 11a and an outlet 11b. The inlet 11a is used for inserting the torch gas inlet pipe 13 , and the torch gas 14 flows through the torch gas inlet pipe 13 . The water seal tank 12 is disposed in the water seal tank 11 , for example, at the bottom of the water seal tank. A water seal 15 is accommodated in the water seal tank 12 . In the embodiment of the present invention, the height of the water seal 15 is determined according to the required pressure, and there is no limitation here. The water seal tank 12 also has an opening 12a communicated with the water seal tank 11. image 3 In the example shown, the opening 12a ...
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The present invention relates to a water-sealing structure for a torch system, comprising a water-sealed tank which is provided with an inlet and an outlet; a water-sealing groove which is arranged inside the water-sealing tank and used to contain water, and the water-sealing groove which is provided with an opening communicated with the water-sealing tank; as well as a flame inlet pipe which is inserted into the water-seal of the water-sealing groove through the inlet, wherein, the equivalent weight flow area of the water-sealing tank is 1 to 3 times the same of the flame inlet pipe, and the pressure produced during the discharge of large amount of flame gas can push the water in the water-sealing groove to the water-sealing tank. The internal structure of the water-sealing tank realized by special design does not need any valve control system; sufficient water-sealing height can be maintained during small amount of discharge to prevent air backflow; thereby, gas recovery is facilitated, and water-sealing can be automatically cancelled during large amount of discharge; the disadvantages of valve controlled water sealing are avoided, and the essential safety is ensured.
Description
technical field [0001] The invention relates to a control structure of a flare system, in particular to a water seal structure for the flare system. Background technique [0002] The flare system is an essential safe discharge combustion facility for petrochemical production enterprises. It is used to deal with the combustible gas discharged under the accident state of the production device, and also needs to deal with the combustible gas that cannot be used but must be discharged during the normal production process. [0003] In order to ensure safe operation, the flare system needs to consider reliable anti-backfire safety measures. In the prior art, the following three solutions are typically considered: [0004] Option 1: The valve is automatically controlled to prevent backfire. Such as figure 1 As shown, valve 2 is installed on the flare gas discharge pipeline to realize automatic control according to the discharge flow or pressure signal of flare gas 1 . Close val...
Claims
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IPC IPC(8): F23D14/82F23D14/38
Inventor张世程奚文杰曹枫刘世俊侯守坤
OwnerSHANGHAI QIYAO THERMAL ENERGY ENG CO LTD