How much is a set of second-hand tube condenser sold in Suzhou, large high-pressure heat transfer equipment
Chemical pickling descaling method for stainless steel condenser: clean the condenser with prepared weak acid descaling agent to make scale fall off and improve the heat transfer efficiency of the condenser.
The operation method is:
1. Prepare the descaling solution in the pickling tank, and start the pickling pump to make the descaling solution circulate in the condenser condenser for 24 hours. Generally, the scale is basically removed after 24 hours.
2. After stopping the operation of the acid cleaning pump, use a round steel brush to pull the brush back and forth in the pipe wall of the condenser, and clean the dirt and rust with clean water.
3. Then clean the detergent solution left in the pipe repeatedly with clean water until it is clean. The chemical pickling method is suitable for vertical and horizontal shell and tube condensers.
The electronic magnetic water descaling method can not only effectively prevent the generation of new scale, but also remove the original scale, because after the use of the electronic magnetic water heater, the ions lose the scaling ability, which will lose the protection to the original scale. In addition, the magnetized cooling water has a certain amount of induction power. At the same time, because the expansion coefficient of the steel pipe in the condenser is different from that of the scale, the original scale gradually cracks, and the magnetized water continuously invades its cracks, destroying the adhesion of the original scale, making it gradually loose and fall off and constantly taken away by the circulating cooling water.
The descaling method of the electronic magnetic water heater is simple and easy to operate with low labor intensity, and it can be used to descale and prevent scaling without affecting the normal operation of the refrigeration system.
The significance of stainless steel condenser descaling and energy saving: once the condenser has scale, the thermal resistance of heat conduction will increase, so the thermal resistance will increase, and the value of heat transfer coefficient will decrease. Because the condensation temperature is inversely proportional to the heat transfer coefficient, the temperature of the condenser will increase, and the condensation pressure will increase accordingly. The more serious the scaling of the condenser, the more significantly the condensation pressure will increase, In this way, the power consumption of the refrigerator will increase, and the power consumption of each operating equipment of the refrigeration system will increase accordingly, resulting in a waste of electric energy.
The stainless steel condenser is drilled with a CNC drilling machine, which is conducive to strictly controlling the diameter, perpendicularity and spacing of pipe holes, and provides convenience for pipe thread processing. However, tubesheet and baffle plates are drilled in the same direction as the pipe penetration. There are also many processing requirements for the baffle in the tube condenser. On the one hand, the outer diameter of baffle shall meet the requirements; on the other hand, the performance of condenser shall be ensured.
The concentricity of baffle plate and tube plate of stainless steel condenser shall be adjusted to ensure sufficient rigidity of the whole tube bundle. Then install the tube bundle into the shell and wear the remaining heat exchange tubes.
In addition, it will also involve the welding of various components in the tubular condenser, including the welding of tubes and tubesheet, tubesheet and shell, etc. All these are carried out in a reasonable manner and air tightness tests are carried out to prevent leakage.
The stainless steel condenser shall be chemically cleaned and descaled with cleaning solution, acid solution, alkaline solution, clean with clean water and acid alkali solution.
The cleaning solution can be added to the cooling water system in a certain proportion, and the cooling pump can be started to circulate for 12 to 24 hours. The cleaning solution will continue to circulate. Through the chemical action and scouring action of the cleaning solution, the deposit layer will continue to dissolve and drip.
The single-stage steam compression refrigeration system is composed of four basic components: refrigeration compressor, condenser, throttle valve and evaporator, which are connected in turn by pipes to form a closed system. The refrigerant circulates continuously in the system, changes its state, and exchanges heat with the outside.
