How to choose a buffer tank? What is a buffer tank? What are the benefits of a buffer tank?

Pressure safety.

GB T23137-2008 "Household and Similar Heat Pump Water Heaters" rules: the static pressure test pressure is 2 times the additional pressure of the water tank, and the number of pulse pressure test cycles is 100,000 times. The enamel buffer tank with high pressure function is selected in the air source heat pump heating system.

It can ensure the stability and safety of the system during operation.

Corrosion Resistance The enamel buffer tank has a super corrosion resistance function and a long service life, and has gradually become the main stream in the air source heat pump heating system. The enamel process is to melt and solidify a layer of inorganic glass on the surface of the steel plate, and the oxide-based coating, through the enamel of the inner tank of the tank has good adhesion, acid resistance, alkali resistance, hot water erosion resistance, temperature resistance to drastic changes, pressure resistance and impact resistance, etc., at the same time, the precipitation of harmful metals such as lead and cadmium in the water tank is lower than the national standard, and the water quality reaches the national drinking water standard.

Thermal insulation GB T23137-2008 "Household and Similar Heat Pump Water Heaters" specification rules: 100L water tank in the ambient temperature of 20, adhere to the natural condition for 24 hours, cooling does not exceed 10; The 100L 300L water tank is placed at an ambient temperature of 20, insisting on the natural condition for 24 hours, and the cooling does not exceed 8; The 300L water tank is placed at an ambient temperature of 20 for 24 hours in a natural condition, and the cooling does not exceed 6.

Energy-saving and economical.

In the air source heat pump heating system, the enamel buffer tank is installed, although part of the initial investment will be added, but after the installation, the service life of the system is greatly improved, the protection cycle is extended, and the protection cost is lower; Moreover, because the operation cycle of the heat pump system is greatly shortened, coupled with the advantages of the water tank's own heat preservation, heat storage and buffer functions, the overall power consumption of the system is lower.

Excerpt from "How to choose a buffer water tank? 4 Criteria Teach You to Choose".

How to choose a buffer tank You have to ask the relevant personnel, the buffer tank should have a certain role in most fields, and it will be extensive.

The slow flush tank is based on the size of the main engine selected by the system.

Features are different:In fact, the buffer water tank is connected in series in the first air conditioning system to increase the water capacity of the small system, store the cooling capacity or heat, and effectively solve the load fluctuation caused by the system is too small and the frequent start of the host. The expansion tank is composed of an airbag plus a carbon steel tank body and flange.

When the system water pressure is greater than the nitrogen pressure between the carbon steel tank and the airbag of the expansion tank, the system water will be squeezed into the expansion tank airbag under the action of the system pressure.

When the water pressure of the system is less than the gas pressure in the expansion tank, the water in the air bag will be extruded under the pressure of nitrogen between the air bags of the tank body, and it will be returned to the system, the water volume of the system decreases, the pressure rises, the nitrogen volume between the tank and the air bag increases, and the pressure decreases until the two reach a new equilibrium, and the water stops squeezing back into the system from the air bag, and the pressure tank plays the role of regulating the pressure fluctuation of the system.

Precautions for the installation of buffer water tank.

All pipe connections of the buffer tank are standard cylindrical pipe threads, and the pipe joints installed with them should be matched in strict accordance with the specifications. Now the quality of the cylindrical pipe threaded fittings purchased on the market is relatively messy, and the cylindrical pipe threaded fittings required by the national standard must be selected when choosing, only in this way can they coincide with the threads of the water tank products that come out of the factory.

In order to save installation costs, some installation units blindly pursue low-cost accessories, the quality of such accessories generally does not meet the requirements of the national standard, and the installer can only use the way of multi-winding raw material belt when installing.

The difference between the expansion tank and the buffer tank is: different functions, different auxiliary heating systems, and different hardware assistance.

First, the role is different.

1. Expansion water tank: The expansion water tank accommodates the expansion of the system water in the heating system, and also plays the role of constant pressure and water replenishment for the system.

2. Buffer water tank: The function of the buffer water tank is to increase the water capacity of the small system and store cold and heat sources.

Second, the auxiliary heating system is different.

1. Expansion water tank: The expansion water tank does not use other auxiliary heating systems.

2. Buffer water tank: The buffer water tank can use other auxiliary heating systems to make the water tank use all year round.

Third, the hardware help is different.

1. Expansion water tank: The expansion water tank improves the safety and reliability of the system operation.

2. Buffer water tank: The buffer water tank reduces the number of starts and stops of the air-conditioning host and prolongs the life of the air-conditioning host.

The main function of the expansion tank is to balance the system pressure, when the water heats up and cools down, it will expand and contract, at this time, in order to stabilize the system pressure, the air bag of the expansion tank is used to balance the system pressure. The buffer water tank is to buffer the return water pressure and discharge the gas in the system, the automatic exhaust valve at the top of the system sometimes has a less obvious effect, and the use of the buffer water tank can better discharge the air in the system.

The hot water exchange tank is mainly equipped with heat pump, wall-hung boiler, and solar energy. It mainly plays the role of a thermal insulation hot water and buffer. Usually, when the family has a large population and the hot water is not enough, it can be equipped with a stainless steel pressure tank to store hot water.

The insulation effect of the stainless steel pressure water tank is very good, and the temperature of the hot water is maintained at about a few degrees a day.

The buffer tank can store the amount of water, increasing the pressure of the water, making it easy to flush out the contents of the pipes.

Pressure safety.

GB T23137-2008 "Household and Similar Heat Pump Water Heaters" stipulates that the static pressure test pressure is twice the rated pressure of the water tank, and the number of pulse pressure test cycles is 100,000 times. The use of enamel buffer tank with high pressure bearing performance in the air source heat pump heating system can ensure the absolute stability and safety of the system during operation.

Corrosion resistance. The enamel buffer tank has super superior corrosion resistance and long service life, and has gradually become the mainstream of air source heat pump heating system. The enamel process is to melt and solidify a layer of inorganic glass on the surface of the steel plate, and the oxide-based coating, the surface of the tank tank after enamel has the advantages of good adhesion, acid resistance, alkali resistance, hot water erosion resistance, temperature resistance to rapid changes, pressure resistance and impact resistance, and the precipitation of harmful metals such as lead and cadmium in the water tank is lower than the national standard, and the water quality meets the national drinking water standard.

The standard of thermal insulation GB T23137-2008 "Household and Similar Heat Pump Water Heaters" stipulates that: the 100L water tank is kept in a natural state at an ambient temperature of 20, kept in a natural state for 24 hours, and the cooling does not exceed 10; The 100L 300L water tank is kept in a natural state at an ambient temperature of 20 for 24 hours, and the cooling does not exceed 8; The 300L water tank is kept in a natural state at an ambient temperature of 20 for 24 hours, and the cooling does not exceed 6.

Energy-saving and economical.

Installing an enamel buffer tank in an air source heat pump heating system, although the initial investment will increase part of the cost, after installation, the service life of the system is greatly improved, the maintenance cycle is extended, and the maintenance cost is lower; And because the operation cycle of the heat pump system is greatly shortened, coupled with the advantages of heat preservation and heat storage buffer performance of the water tank itself, the overall power consumption of the system is lower.