Daxing 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 layer. Spread the heat. 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 covers, 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
, water
water type
.
The shells are respectively equipped
.
,
.
,
.
Three specifications, when selecting equipment, attention should be paid to matching the heat source and 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 pipeline of the heat exchanger to control the steam flow and hot water outlet temperature.
()
The transportation and installation of the heat exchanger must use cranes and other lifting equipment to strictly prevent rolling. The heat exchanger should be firmly fixed to the foundation to prevent vibration during operation. There should be enough space around the heat exchanger. out of the maintenance position.
()
Adopting a new structure of floating coil bundles, the heat transfer capacity is improved, and the automatic descaling ability is greatly improved.
()
The pipe bundles can be connected by union joints, which reduces welding points and makes maintenance more convenient.
()
Compact structure, small size and small floor space.
.
Technical features:
()
Enhance heat transfer
:
The spiral copper coil adopts a cantilever fixed structure and acts as a 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 of the outer wall of the tube
and improving the overall heat transfer coefficient
.
()
Automatic descaling
:
During the operation of the 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, due to the temperature change of the coil, it is generated Due to the telescopic phenomenon, even if a small amount of scale is formed on the outer wall of the tube, it will automatically fall off
(
It can be discharged from the tank through the sewage outlet regularly
)
This eliminates the traditional cumbersome descaling process. Therefore, the heat exchanger can maintain optimal operation for a long time.
()
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
)
°C range of the set value.
()
Reducing floor space
:
The equipment has a compact structure and covers an area of approximately
% of a tube-and-tube heat exchanger with the same function
It not only reduces the cost, effectively uses space, but also facilitates transportation and hoisting.