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Mr. Tu
Phone: 13919106009
Email: tujianhua@126.com
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Mr. Lin: 0571-87605270
0571-88834281
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Fax: 0571-88834281
address: Room 1105, Building 8, Taihe Plaza, Shangcheng District, Hangzhou, Zhejiang Province
Efficient and safe steam heater for gasification and purge air

灰斗、灰库、空气斜槽 等除灰装置中粉体的流化,以便于排灰或气力输送;吹扫风主要用于低低温电除尘器和湿式电除尘器的 绝缘子 的吹扫加热,以防止结露爬电。 Gasification wind, also called fluidized wind, is often used for fluidization of powder in ash removal devices such as ash hoppers, ash warehouses, air chutes, etc., to facilitate ash discharge or pneumatic conveying. Purge wind is mainly used for low and low temperature electric dust removal. Purge heating of insulators of wet cleaners and wet electrostatic precipitators to prevent condensation and creepage. 00 - 150 ℃。 The temperature of the purge air of the gasification wind is usually between 100-150 ° C. 每台装置的电加热功率大约在 3 0 - 500KW ,常年不停机,因此,总的电耗还是非常可观的。 If it is heated by electricity , the electric heating power of each device is about 30-500KW , and it will not stop for many years. Therefore, the total power consumption is still considerable. If you use a steam heater instead of an electric heater, it will produce significant economic benefits, and the investment can usually be recovered within one year.

The patented product developed by Hangzhou Dika Company, a safe and efficient steam-air heater, is aimed at the fluidized air heating of the ash hopper, the ash warehouse, the air chute and the heating of the insulator sweeping air. The heater can use superheated steam, saturated steam, steam-water mixture, high-temperature hot water, etc. as the heat source to heat the air. The final drainage temperature can be lower than 80 ° C, and the heat utilization efficiency can reach 90%.

采用了多项防泄漏安全措施,具有较高的安全性,不会发生汽水向空气流程的泄漏。 The device adopts a number of anti-leakage safety measures, which has high safety and will not cause leakage of steam and water to the air flow.

The fluidized air and purge air steam water heaters use stainless steel -aluminum finned tubes. With on-site instruments and temperature adjustment mechanism, equipped with leak-proof security system.



绝缘子吹扫风一般按每个吹扫点 4 0 - 50m3/h 风量计算 每个点大约 2 .5KW Taking a 600MW unit as an example, the insulator purge wind is generally calculated according to the air volume of 40-50m3 / h at each purge point , and each point is about 2.5KW . 2 0% The number of insulators is 120-136 , the heating power of blowing wind needs 300-340KW , the annual electric heating power consumption is millions of kilowatt hours, and the steam consumption only needs 450-510kg / h , the heating cost is only 20 % of the electricity cost . If the purge air steam heater is arranged under the dust collector, the saturated water and part of the steam heated by the ash steam will be used to heat the purge air to the required temperature, and finally exhausted with 80 ° C supercooled water, the steam consumption will be The amount can also be greatly reduced, and there is no flash steam in the drainage of the steam heating system of the dust collector, and the thermal efficiency of the entire system is close to 90% .


The economical efficiency of steam heating instead of electric heating of the porcelain shaft and porcelain shaft blowing wind is as follows:

Serial number

project

32 ash bucket 600MW

40 ash bucket 600MW

48 ash bucket 1000MW

60 ash bucket 1000MW

1

Porcelain sleeve and porcelain shaft heating power KW

240

300

360

450

2

Steam consumption kg / h

355

445

535

670

3

Steam conversion power generation capacity KW

47

59

71

88

4

Power saving KW

193

241

289

362

5

Annual power saving (10,000 kwh )

145

181

217

272

6

Annual electricity saving benefits (ten thousand yuan)

65

81

98

122

  Safe and reliable:

● Leak-proof security system   Check the temperature and humidity of the gasification or purge air to determine whether a leak has occurred. If there is a leak, the security system immediately cuts off the steam and calls the police.

● Leak-proof design   Weak links such as elbows are outside the liner, and even if a welding leak occurs, it can only leak to the outside, not to the gasification wind.

Energy-efficient :

热效率 90% ,完全替代电加热。 ◆ Efficient and energy-saving 90% thermal efficiency , completely replacing electric heating.

可以不增加蒸汽耗量,以高温水为热源。 ◆ Good economy, without increasing steam consumption, using high temperature water as heat source.

The 80KW ash bucket ash storage gasification wind heater can save 600,000 KWh of electricity annually and save 250,000 yuan in electricity;

00KW的绝缘子吹扫风加热器 年节电 1 81万 K Wh 节电效益 8 1万元 The 3 00KW insulator blower heater can save 18.1 million K Wh of electricity per year , and save 80,000 yuan in electricity .


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