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Major Product Serial

Our Major product serial as following:


Distillation columns, Extraction columns (Towers)

Distillation tower(column), Distillation tower(column)

Packing of distillation column , Extraction tower

Extraction tower

Distillation column(tower) is a type of device that vapor and liquid get close contact inside the column for distilling. The light components (low boiling matter) in the liquid phase are transferred to the gas phase, and the heavy components (high boiling matter) in the gas phase are transferred to the liquid phase by using the fact that each component in the mixture has different volatility, that means the vapor pressure of each component is different when at the same temperature, so as to achieve the purpose of separation. Distillation column (tower) is also a heate and medium transfering device widely used in petrochemical production.

The equipment used in the distillation process is called distillation column (tower), which can be divided into two categories:

① plate tower, in which the gas-liquid two phases generally make multiple countercurrent contacts, and the gas-liquid two phases on each plate generally make cross flow.

② Packed column (tower), gas-liquid two phases are in continuous countercurrent contact.

General distillation unit consists of distillation column(tower)body, condenser, reflux tank, reboiler and other equipment. The feed enters the tower from a certain section of the tray in the distillation column(tower), which is called the feed plate. The feed plate divides the distillation tower into two sections, the upper part of the feed plate is called the fine distillation section, and the lower part of the feed plate is called the stripping section.

Extraction columns

Extraction is one of the important unit operations for separating and purifying substances. It is a unit operation to get component separation utilize the difference of solubility of each component in the mixture in the added solvent. During the liquid-liquid extraction operation, two types of liquid flow in the column(tower) in type of countercurrent flow, one of which is a dispersed phase, and the other is a continuous phase liquid in the form of liquid droplets. The concentration of the two liquid phases changes continuously in different form in the equipment, and the separation between the two liquid phases get accomplished at both ends of the column( tower) because of the density difference. If the light phase is the dispersed phase, the phase interface appears in the upper part of the column(tower); otherwise, the phase interface appears in the lower part of the column( tower).

1. Upper head

2. Motor and reducer

3. Light composition outlet

4. Light composition inlet

5. Heavy composition inlet

6. Skirt

7. Heavy composition outlet

8. Fixed Ring

9. Cylinder

10.Rotating Disc

11. Stirring shaft

12. Manhole

13. Liquid gauge


Heat Exchanger

Tublar heat exchanger(Shell and tube heat exchanger)

Working principle of shell-and-tube heat exchanger

Shell and tube heat exchanger is also called tubular heat exchanger. It is an inter-wall heat exchanger with the wall of the tube bundle enclosed in the shell as the heat transfer surface. This type of heat exchanger has simple structure, reliable operation, can be made of various structural materials (mainly metal ), and can be used under high temperature and high pressure. It is the most widely used heat exchanger type at present.

The shell-and-tube heat exchanger belongs to the inter-wall heat exchanger. The fluid channel formed inside the heat exchange tube is called the tube side, and the fluid channel formed outside the heat exchange tube is called the shell side. When the tube side and shell side pass through two different types of fluids with different temperatures respectively, the relatively high temperature fluid passes through the heat exchange tube wall to transfer heat to the relatively low temperature fluid, the relatively high temperature fluid is cooled, and the relatively low temperature fluid is heated, thus achieving the goal of the two-fluid heat exchange process.

Spiral Plate Heat Exchanger

Structure and performance of spiral plate heat exchanger

1. The equipment is made of two rolled plates, which forms two even spiral channels. The two heat transfer media can carry out full countercurrent flow, it can greatly enhance the heat transfer effect. Even if two small temperature difference media can achieve ideal heat transfer effect.

2. The nozzle on the shell adopts a tangential structure, with small flow resistance. Because the curvature of the spiral channel is uniform, the liquid flow in the equipment does not have a sudden turning , and the total resistance is limited , so the designed flow rate can be increased to make it have a high heat transfer capacity.

3. The end face of the spiral channel of the type I non-detachable spiral plate heat exchanger is sealed by welding, so it has high sealing performance.

4. The structure principle of type II detachable spiral plate heat exchanger is basically the same as that of non-detachable heat exchanger, but one of the channels can be disassembled for cleaning, especially suitable for heat exchange with viscous and precipitated liquid.

5. The structure principle of type III detachable spiral plate heat exchanger is basically the same as that of non-detachable heat exchanger, but its two channels can be disassembled for cleaning, with a wide range of applications.

6. When a single device cannot meet the use effects, more devices can be used in combination, but the combination must meet the following requirements: parallel combination, series combination, and the equipment and channel spacing are the same. Hybrid combination: one channel in parallel and one channel in series.

Non-deachable spiral plate hea texchanger

Industrial Evaporators

Wiped film evaporators

working principle

The Wiped film evaporator is a new type of high-efficiency evaporator that can be forced to form a film through a rotary film Blade and flow at high speed, with high heat transfer efficiency and short retention time (about 10~50 seconds), and can be used for falling film evaporation under vacuum conditions.It is composed of one or more cylinders with jacket heating and a rotating film blade inside the cylinder. The Rotating blade continuously raw material wipe feeding into a even thickness liquid film on the heating surface and moves downward; In this processing, the components with low boiling point are evaporated, and the residue is discharged from the bottom of the evaporator.

Multi-effect evaporator


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