Pressureless indirect hot water boiler features

1. Introduction to indirect heating hot water boiler

The indirect heating hot water boiler is a heat exchanger inside the atmospheric pressure boiler, and the user system or the water tank can directly exchange heat with the built-in heat exchanger.

Second, the background information

Zhongrui SWLJ series indirect heating atmospheric hot water boiler is developed by Yangzhou Zhongrui Boiler Co., Ltd. Its design idea combines the advantages of atmospheric boiler and pressure boiler and heat exchange technology. The boiler body is designed according to normal pressure. Built-in pressure-bearing stainless steel tube heat exchanger, which has the advantages of both atmospheric boilers and closed systems, effectively solves the problems of heating and hot water supply in high-rise buildings.

Third, the working principle

The hot water outlet temperature that the indirect boiler can provide is 15 to 90 °C. That is to say, the hot water outlet temperature provided by the indirect boiler can be adjusted within a wide range, adapting to the user's demand, adjusting the fuel consumption, and the user can “pay as needed” to save operating costs.

When the indirect boiler is in operation, the fuel burns out heat, the working temperature rises to a set temperature, and a heat exchanger is installed; cold water is introduced into the heat exchanger. The cold water in the pipe is heated to hot water by the hot water outside the pipe, and is sent to the water point; The working quality in the indirect boiler is only used as a heat transfer body, and it is basically not incremented or reduced during the entire cycle.

Fourth, technical characteristics:

The indirect boiler has the technical characteristics of “three highs, two lows and three turns”: “three highs” means high integration, high life and high efficiency. “Two lows” means low emissions and low maintenance. Low emissions reduce harmful pollution and waste heat pollution to the atmosphere. Low maintenance greatly reduces the work intensity of operators and reduces many complicated and repetitive tasks. It is a reflection of people-oriented technology. “Three-way” is intelligent, networked and modular.

Five, safe and reliable

The condensing indirect boiler is always operated under normal pressure. The boiler has its own expansion tank and there is no danger of explosion. It has the safety and reliability that the normal pressure and pressure boiler can't.

Six, the setting place is diverse

The machine room can choose a variety of places such as the basement, the ground, the middle of the floor and the roof, which greatly saves construction land.

Seven, compact

Zhongrui brand condensing indirect boiler in the pipe GB3087 seamless steel pipe, interpolating the spoiler, increasing the heat exchange effect, increasing the heat exchange area, making the structure more compact and greatly saving space.

Eight, simple operation and maintenance

The heat exchangers and other components of the Zhongrui brand condensing indirect boiler are bolted to facilitate inspection, maintenance and maintenance of the equipment.

Ten, short start-up time

The preheating time of the Zhongrui brand condensing indirect boiler is 20 minutes, which greatly reduces the operating expenses of the users.

Eleven, unitized

Unit body, heat exchanger, furnace body insulation, protective cover plate integration, saving user investment.

The Zhongrui brand condensing indirect boiler adopts the imported low Nox burner, which has low smoke emission and legal standards, and is an environmentally friendly product, which fully meets the requirements of the national first-class region.

Twelve, security protection

Zhongrui brand indirect boilers are equipped with expansion water tanks, temperature overheat protection, high and low water level protection and other multiple safety protection devices, no danger of dry, dry burning, explosion and rupture.

Thirteen, a variety of machines

An indirect boiler can meet the needs of users' heating, sanitary hot water and advanced swimming pools. One or three circuits can be set on one machine to meet different needs.

Fourteen, long service life

The use of high-purity hot coal water, the machine will never scale; the machine maintains indirect oxygen-free, eliminating the oxygen corrosion of the steel plate inside the unit, making the indirect boiler life semi-permanent and the service life is more than 20 years.

Fifteen, more clean

The Zhongrui brand indirect boiler uses 304 stainless steel tube heat exchange to make the hot water produced cleaner and sanitary.

Sixteen, high degree of automation

Zhongrui brand indirect boiler adopts microcomputer automatic control, which reduces the working intensity and is convenient for automatic operation with a single push.

Seventeen, the system design is simple

The Zhongrui brand indirect boiler uses a stainless steel heat exchanger, which can be directly connected to the user, which can reduce heat exchangers and other components, making the system design simpler.

18, low operating costs, investment province: save fuel

Compared with other types of boilers, condensing indirect hot water boilers provide the same heat supply because of their high thermal efficiency, and the gas consumption is very economical. When comparing with ordinary indirect hot water boilers, the energy saving of the entire system should be considered. The thermal efficiency of the condensing indirect boiler includes a built-in heat exchanger. The efficiency of the built-in heat exchanger of the atmospheric hot water boiler is 90%, and the consumption of a boiler of 600,000 kcal/h (commonly known as lt) is:

600000/8500/90%=78(m3/h)

The condensing indirect hot water boiler heat exchanger is built in the interior of the boiler. There is no heat transfer loss similar to the plate exchange. The system is simple and the pipe consumption is not. The gas consumption of a 600,000 kcal condensing indirect hot water boiler is: 600000/8500. /96%=73(m3/h)

Condensation indirect boiler gas consumption is 73Nm3 / h, condensing indirect hot water boilers consume less gas (m3 / h) than ordinary indirect hot water boilers, condensing indirect boilers such as using 2400h per year to save gas:

5×2400=12000(m3)

If the gas price is 2.5 yuan / m3, the annual savings:

12000m3 × 2.5 yuan / m3 = 30,000 yuan, which shows the energy saving of the condensation indirect boiler.

Nineteen, exempt from complicated approval procedures

The unit is operated under normal pressure, which simplifies the procedures such as approval, annual review, etc. The operation does not require a certificate.

It provides production steam for food processing, printing and dyeing, pharmaceutical and other industries, provides disinfection steam for medical institutions, provides steam for heating of other enterprises and hotels, and provides domestic water through water tank heating.

It provides production steam for food processing, printing and dyeing, pharmaceutical and other industries, provides disinfection steam for medical institutions, provides steam for heating of other enterprises and hotels, and provides domestic water through water tank heating.