J9旗舰厅

1、 Equipment name: steam generator

2、 Specification and model: hdn

3、 Equipment brand: Wenzhou Haineng wzhdn

4、 Product Description:

Raw water is delivered to one side of the tube of the decontamination column and heat exchanger through a feed pump, and the liquid level is controlled by the liquid level gauge. After the industrial steam or heating water enters the heat exchanger, the raw water is heated to the evaporation temperature, and a strong heat cycle is formed in the two columns. Pure steam will be produced in the evaporator (except for the pollution column). The low speed of the steam and the height of the column will remove any small water drop that may not be pure under the action of gravity. The opening degree of industrial steam inlet valve is regulated by a pneumatic regulator. The pure steam pressure can be maintained at the pressure value set by the user, and the range is 0-3bar. 　

5. Equipment principle:

The steam generator is a kind of heat exchange equipment, which transfers the heat of water in the primary circuit to the water in the secondary circuit, so that it can be converted into steam for steam turbine work. Since the water flow in the primary circuit is radioactive through the core, the steam generator, pressure vessel and pipeline in the primary circuit constitute a barrier to prevent radioactive leakage. During the normal operation of PWR nuclear power plant, the water and steam in the secondary circuit should not be polluted by the primary circuit water and have no radioactivity. There are two types of steam generators in PWR nuclear power plant, one is direct flow steam generator, the other is saturated steam generator with steam water separator. Most nuclear power plants use saturated steam generators with steam water separators. The following focuses on the structure of this steam generator. Most saturated steam generators are vertical inverted "U" tube natural circulation structure with built-in steam separator. The coolant from the reactor enters the primary water chamber through the I: ZL connection of the lower head of the steam generator, passes through the inverted "U" tube, and transmits the heat to the secondary side water at the shell side, and then flows to the suction of the coolant circulating pump from the outlet water chamber and the connection of the lower head. On the shell side of the steam generator, the feed water of the secondary circuit enters the annular pipe from the feed pipe at the upper simplified body, and then descends to the bottom through the annular channel of the lower simplified body, and then rises in the outer space of the inverted "U" tube bundle, and is heated and evaporated, and part of the water becomes steam. The steam water mixture first enters the first and second stage steam water separators for coarse separation, and then enters the third stage steam water separator for further fine separation. After three-stage steam water separation, the dryness of steam is greatly improved. The saturated steam with certain dryness is collected at the top of the steam generator and led to the steam turbine through the main steam pipe of the secondary circuit. According to the operation requirements of saturated steam turbine in nuclear power plant, the saturated steam dryness of IZL from steam generator shall not be less than 99.75%, and the steam dryness at the inlet of steam turbine shall be about 99.5%.

◇ washing and ironing industry, food machinery industry, biochemical industry, hospital, school, textile factory, clothing factory, clothing supermarket, clothing factory, Dry cleaning shop, restaurant, hotel, Mo shop, hotel, canteen, restaurant, food factory

7、 Structural features:

1. The pure steam generator consists of two parallel columns:

◇ double shell seamless tube sanitary and clean exchanger.

◇ Decontamination column.

◇ all the equipment is made of AISI 316L stainless steel, and the working surfaces of the column and the exchanger are pickled and passivated by standard procedures.

◇ Adopt pharmaceutical grade PTFE (toflon) gasket.

◇ all parts are installed on solid carbon steel bracket, and can be easily disassembled and assembled.

◇ mineral wool insulation, the surface is covered with AISI304 stainless steel Satin polishing protection layer.

8、 Development trend:

① Further improve the thermal efficiency of boiler and power station;

② Reduce the equipment cost of unit power of boiler and power station;

③ Improve the operation flexibility and automation level of boiler unit;

④ Develop more boiler varieties to adapt to different fuels;

⑤ Improve the operation reliability of boiler unit and its auxiliary equipment;

⑥ Reduce environmental pollution.

1. The system equipment is entitled to one-year free warranty, the warranty date is calculated from the date of product acceptance, and the consumable filter material is not listed here.
2. In case of any equipment quality problem (except caused by misoperation or unforeseen factors) during the warranty period, the supplier shall repair it free of charge and replace the damaged parts.
3. After the expiration of the warranty period, only a certain material fee and appropriate technical service fee will be charged.
4. In case of system operation failure which cannot be solved by itself or by telephones, our technical maintenance personnel shall make solutions (including temporary measures) and schedule within 24 hours after receiving the written notice from the demander and report to the competent leaders of both parties.
5. After the delivery of the equipment, our company will have engineers to pay a return visit to understand the operation of the equipment and provide technical services in a timely manner. Users are welcome to ask any technical questions, and we will reply in time.

① the user shall provide detailed data of raw water test, so that our company can carry out relevant selection and arrangement calculation.
② the user shall explain the water quality requirements, use and water yield of the produced water.
③ our company has many types of pressure vessels, membranes, accessories, etc. if the user gives special instructions, we will try our best to meet the requirements.
④ our company provides installation and debugging for the designed and sold equipment and training for the user's operation personnel.
⑤ our company implements the principle of one-year equipment warranty and lifelong service for users, and establishes archives for tracking service to ensure the quality level.

If the above equipment fails to meet your requirements, please contact us, and we will make a detailed engineering plan according to your actual situation, to achieve a low-cost, high efficiency and scientific process combination, so that the water production can meet your ideal requirements.