floating coil heat exchanger

Product Introduction
The floating coil heat exchanger adopts the form of a cantilever floating coil. During the process of heating hot water with steam, the up and down floating of the coil causes the water flow around the coil to destroy the laminar heat transfer. . The heat transfer capacity is greatly improved, and the heat transfer coefficient is
㎡℃. At the same time, due to the scouring effect of the water flow, the tube can be cantilevered to float freely and expand and contract freely, so it is not easy to accumulate scale. If a small amount of scale accumulates during long-term use, , through the expansion of the tube, it will be able to automatically remove scale, so the heat exchange capacity will not decrease during long-term use, and the effect is good.
Working Principle
The floating coil heat exchanger is composed of upper and lower end caps, outer cylinder, steam inlet pipe, condensate outlet pipe and floating coil tube bundle. The upper and lower end caps and outer cylinder are made of high-quality carbon steel, and the floating coil tube bundle is made of copper tubes that have been formed multiple times. The steam enters the parallel floating coil from the steam inlet pipe. After condensation and heat release in the coil, it enters the condensate outlet pipe. There is a condensate supercooling device at the bottom of the condensate outlet pipe. The water is introduced from the water inlet pipe located at the lower end cover. After being folded, the steam enters the parallel floating coil. After flowing, it enters the cylinder and forms from the bottom. After being heated, it flows out from the outlet pipe on the upper end cover.
Structural features
The shell of the heat exchanger has two types: ordinary steel plate and stainless steel plate, and the heat transfer tube bundles are all copper tubes.
The tube side design of the heat exchanger is pressure steam type
br/> and water
water type
The shells are equipped with three specifications
When selecting equipment, pay attention to the heat source. Match the equipment performance.
Due to the high heat transfer efficiency of this heat exchanger, a temperature regulator (i.e. thermostat) must be installed on the steam inlet pipe of the heat exchanger to control the steam flow and hot water outlet temperature.
Heat exchanger For transportation and installation, cranes and other lifting equipment must be used to prevent rolling. The heat exchanger should be firmly fixed to the foundation to prevent vibration during operation. Maintenance positions should be left around the heat exchanger.
Adopt a new structure of floating coil bundles , improves the heat transfer capacity, and at the same time greatly improves the automatic descaling ability.
The tube bundles can be connected with union joints, which reduces the number of welding points and makes maintenance more convenient.
Compact structure, small volume, and small footprint .
Technical features
Enhance heat transfer
The spiral copper coil adopts a cantilever fixed structure. When the heat medium
(
saturated steam or high temperature water
When flowing through the tube, the coil produces high-speed reciprocating motion, forcing the water around the heat exchange tube to form a disturbance, thereby greatly increasing the heat transfer film coefficient
, reducing the fluid thermal resistance on the outer wall of the tube
improving the total heat transfer Coefficient
.
During the operation of the automatic descaling equipment, due to the high-speed floating of the coil, it is difficult for scale to deposit on the outer wall of the pipe. At the same time, the coil will expand and contract with temperature changes, even if the pipe A small amount of scale formed on the outer wall will automatically fall off
(
It can be discharged from the tank through the drain outlet regularly
, eliminating the traditional cumbersome descaling process, so the heat exchanger can maintain optimal performance for a long time status operation.
Precise temperature control
This equipment is equipped with a high-precision intelligent temperature regulator, which can continuously and automatically detect the temperature of the outlet water, and instruct the control valve to adjust the steam entering the coil
(
Or high-temperature water
Therefore, even if the load fluctuates, the outlet water temperature can still be maintained within the set value
°C range.
Reduces floor space
The equipment has a compact structure and occupies an area of The floor area is about that of a tube-and-tube heat exchanger with the same function
, which not only reduces the cost, effectively utilizes space, but also facilitates transportation and hoisting.