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Drain flash tank

A technology of water-repellent expansion and vessel expansion, which is applied in the direction of machines/engines, engine components, mechanical equipment, etc., can solve the problems of condenser vacuum reduction, high temperature, and affecting the life of the condenser, so as to save electric energy and avoid overheating Too high, to avoid the effect of being in a working state all the time

Pending Publication Date: 2022-01-07
SGIS SONGSHAN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are many types of steam drains connected to the drain expander. The main steam temperature is as high as 540°C, and the lower one is above 150°C. Directly draining to the drain expander and then to the condenser, on the one hand, the cooling pipe of the condenser will be rapidly Thermal shock due to heat; secondly, too much superheated steam entering the condenser will also reduce the vacuum of the condenser and affect the life of the condenser

Method used

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Embodiment 1

[0036] Such as Figure 1-2 As shown, this embodiment provides a hydrophobic expander, which includes a controller 100 , an expander body 1 , a hydrophobic water inlet pipe 2 , a temperature detection element 3 and a cooling water inlet pipe 4 . Wherein, the hydrophobic water inlet pipe 2 is connected with the expander body 1, and the water enters the expander body 1 through the hydrophobic water inlet pipe 2; the temperature detection part 3 is used to detect the internal temperature of the expander body 1; the temperature detection part 3 can be a thermal resistance thermometer . The cooling water inlet pipe 4 communicates with the expander body 1, and the cooling water enters the expansion container body 1 through the cooling water inlet pipe 4; optionally, the cooling water can be condensed water. The cooling water inlet pipe 4 is provided with a regulating valve 41, and the regulating valve 41 is used to regulate the speed at which the cooling water enters the expander bo...

Embodiment 2

[0052] This embodiment also provides a hydrophobic expander, the structure of which is basically the same as that of Embodiment 1, the difference is that the sprinkler 46 is swingably arranged at the outlet of the cooling water inlet pipe 4 . This setting can increase the degree of atomization of the cooling water, expand the contact area with the steam, and further improve the cooling effect on the steam. Specifically, the sprinkler 46 is connected to the outlet of the cooling water inlet pipe 4 through a hose, and the sprinkler 46 swings under the impulse of the cooling water.

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PUM

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Abstract

The invention relates to the technical field of steam turbine accessory devices, and particularly discloses a drain flash tank which comprises a controller, a flash tank body, a drain water inlet pipe, a temperature detection part and a cooling water inlet pipe. Wherein the drain water inlet pipe communicates with the flash tank body, and drain water enters the flash tank body through the drain water inlet pipe; and the temperature detection part is used for detecting the internal temperature of the flash tank body. The cooling water inlet pipe communicates with the flash tank body, and cooling water enters the flash tank body through the cooling water inlet pipe. The cooling water inlet pipe is provided with an adjusting valve which is used for adjusting the speed of cooling water entering the flash tank body. The controller is connected with the temperature detection part and the adjusting valve and controls the opening degree of the adjusting valve according to the temperature detected by the temperature detection part. By means of the arrangement, the speed of cooling water entering the flash tank body can be controlled, and the situation that the temperature of steam entering a condenser is too high is avoided.

Description

technical field [0001] The invention relates to the technical field of steam turbine attachments, in particular to a hydrophobic expander. Background technique [0002] In the high-temperature and ultra-high pressure machine, the main steam, reheat steam and auxiliary steam are connected to the drain expander, and the drain expander depressurizes and reduces the temperature after the drain expands, returns the drain to the hot water well for recovery, and the steam is discharged to the upper part of the condenser After being cooled by circulating water, it is condensed into water for recycling. [0003] There are many types of steam drains connected to the drain expander. The main steam temperature is as high as 540°C, and the lower one is above 150°C. Directly draining to the drain expander and then to the condenser, on the one hand, the cooling pipe of the condenser will be rapidly Thermal shock due to heating; secondly, too much superheated steam entering the condenser w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01D25/12F01D21/00F01D21/12F01D25/32
CPCF01D25/12F01D21/003F01D21/12F01D25/32
Inventor 周常荣朱建锋陈营波哈小辉谢远声刘常毫陈金胜胡结良胡创华陈强
Owner SGIS SONGSHAN CO LTD