How much does the evaporation vapor consume in the three effect evaporator

Evaporator. It is the four major pieces of refrigeration.

A very important component, the low-temperature condensate liquid passes through the evaporator to exchange heat with the outside air, vaporize and absorb heat, and achieve the effect of refrigeration.

The three-effect evaporator can be applied to treat the high-salt wastewater generated by oil and gas gathering and processing enterprises in the process of production, and the salt content of the wastewater suitable for treatment is the mass percentage), and the COD concentration is 2000 10,000ppm.

1) Replace the secondary lubricating oil within 1 month when you start using it, and replace the lubricating oil once within 3 to 4 months after that.

2) After opening the low head, unscrew the bolt at the bottom of the U-groove of the rotor, check the scraper and replace the scraper every four months.

3) Open the bottom bearing every two months, check the wear of the bottom bearing, and replace the bottom bearing if necessary.

4) According to the nature of the material, the inner cylinder should be soaked and cleaned with warm water or solvent regularly.

5) Mechanical seal every month.

The cavity is filled with sealing fluid once, and the sealing fluid is 20 mechanical oil.

The theoretical steam consumption is tons of new steam and tons of water, but in fact, there are factors such as equipment heat dissipation, heat exchange efficiency, and heat concentration, and the actual steam consumption is tons of new steam and tons of water.

It takes about a ton of fresh steam to evaporate a ton of water.

What we do is MVR evaporator, no steam, only electricity can be used, evaporating a ton of water consumes about 20-70 kWh of electricity, and no condensate, the floor area is also small, more energy-saving than multi-effect evaporator, more advice!

In fact, it should be above, generally around, we will calculate the heat pump, there is no need to say too small, generally strictly for you to inspect, can not reach.

Principle and function of three-effect evaporator.

The working principle of the evaporator is to use evaporation to heat the solution, so that part of the solvent is vaporized and removed, so as to increase the concentration of the solution. The evaporator is the cold output equipment in the refrigerator, and the refrigerant evaporates in the evaporator to absorb the heat of the low-temperature heat source medium to achieve the purpose of refrigeration. The types of evaporators are:

Flooded evaporator, dry evaporator, circulating evaporator, spray evaporator. The evaporator is mainly composed of two parts: the heating chamber and the evaporation chamber, the heating chamber provides the heat required for evaporation to the liquid, promotes the boiling vaporization of the liquid, and reaches the evaporation chamber with a larger space after vaporization, and the liquid can be separated from the steam by its own condensation or the role of the demister demicker.

Composition and principle of three-effect evaporator.

The three-effect evaporator is mainly composed of three groups of evaporators, condensers, salt separators and auxiliary equipment in series with each other, and the three groups of evaporators operate in series to form a three-effect evaporator. The whole evaporation system adopts the production method of continuous feeding and continuous discharge.

The high salt content wastewater first enters the one-effect forced circulation crystallization evaporator, which is equipped with a circulating pump to pump the wastewater into the evaporation heat exchange chamber, and in the evaporation heat exchange chamber, the external vapor liquefaction generates vaporization latent heat to heat the wastewater. Due to the high pressure in the evaporative heat exchange chamber, the wastewater is heated to superheat in the evaporative heat exchange chamber at a pressure higher than the normal boiling point of the liquid. After the heated liquid enters the crystallization evaporation chamber, the pressure of the wastewater drops rapidly, causing some of the wastewater to flash or boil rapidly.

The vapor after the evaporation of the wastewater enters the second-effect forced circulation evaporator as the power vapor to heat the second-effect evaporator, and the unevaporated wastewater and salt are temporarily stored in the crystallization evaporation chamber. One effect, two effects, three effects between the forced circulation evaporator through the balance pipe communication, under the action of negative pressure, high salt content waste water flows sequentially from one effect to two effects, three effects, wastewater is continuously evaporated, the concentration of salt in wastewater is getting higher and higher, when the salt in the wastewater exceeds the saturated state, the salt in the water will continue to precipitate, enter the salt collection chamber of the lower part of the evaporation crystallization chamber. The salt suction pump continuously sends the salt-containing wastewater to the vortex salt separator, in the vortex salt separator, the solid salt is separated into the salt storage tank, and the separated wastewater enters the two-effect forced circulation evaporator for heating, and the whole process starts again and again, realizing the final separation of water and salt.

The condenser is connected to a vacuum system, and the vacuum system extracts the uncondensed gas generated in the evaporation system, so that the condenser and the evaporator are kept in a negative pressure state, and the evaporation efficiency of the evaporation system is improved. Under the action of negative pressure, the secondary vapor produced by the wastewater in the three-effect forced circulation evaporator automatically enters the condenser, and under the cooling of the circulating cooling water, the secondary vapor produced by the wastewater is rapidly transformed into condensate. The condensate can be continuously discharged to the reuse pool.

Single-effect evaporation:

A type of evaporation operation. The characteristic is that the secondary steam generated is not used to further evaporate the material.

Single-effect evaporation is the evaporation of a single equipment after the secondary steam is removed during evaporation. For single-effect evaporation, it is often necessary to calculate the amount of water evaporated, the consumption of heating steam, and the heat transfer area of the evaporator, given the production task and the determined operating conditions. Multi-effect evaporation:

A type of evaporation operation.

Heating steam can be saved. Each evaporator is called an effect.

Commonly used are double-effect evaporation, three-effect evaporation, four-effect evaporation, etc.

Evaporation is a process operation that uses heating to vaporize and remove part of the solvent in the solution, thereby increasing the concentration of the solution and promoting the precipitation of solutes.

The necessary conditions for the evaporation process to take place are the continuous supply of heat energy to the solution and the continuous removal of the resulting solvent vapors.

Continuous evaporation operation can be considered as thermostatic heat transfer; In intermittent operation, the temperature at which the heated vapor is generally constant.

The boiling point of the solution during evaporation gradually increases as its concentration increases.

The vapor generated from the evaporator for secondary evaporator heating is collectively referred to as secondary vapor.

Usually the first effect is operated under a certain gauge pressure, and the pressure of the second effect is low, which causes a suitable temperature difference so that the liquid in the second effect evaporator can be evaporated.

In the same way, after a certain period of time, the temperature difference and pressure difference in multiple evaporators adjust themselves to achieve stability, so that the steam can be carried out continuously.

According to the flow direction of the secondary steam and the solution, the process of multi-effect evaporation can be divided into: parallel flow process. The solution and the secondary steam pass through each effect in the same direction.

Because the pre-effect pressure is higher than that of the after-effect, the feed liquid can be used by the pressure difference flow to fix the repulsion and the ligation of the ship. However, the final solution has a high concentration and low temperature, and the viscosity of the solution is large, so the heat transfer coefficient is low. Counter-current process.

The solution flows in the opposite direction to the secondary vapor. It is necessary to use a pump to send the solution to the previous effect with higher pressure, and the influence of the concentration and temperature of each effect solution on the viscosity is roughly canceled, and the heat transfer conditions of each effect are basically the same. Cross-flow process.

The secondary steam passes through each effect in turn, but the feed liquid enters and exits separately for each effect, which is suitable for the feed liquid with crystal precipitation.

Due to the repeated use of heat energy, the amount of heat energy consumption is significantly reduced, so multi-effect evaporation is conducive to the continuous production of large quantities of liquid extracts or extracts, etc., as well as concentrated Chinese herbal preparations, in addition, the use of multi-effect evaporation can also be used to prepare water for injection.

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Three-effect evaporation is a kind of multi-effect evaporation, let's first look at what is called single-effect evaporation, that is, the steam generated in the evaporator is transported to the steam tank again and the original spray liquid wall heat exchange, the steam is condensed, the liquid is evaporated again, and so on.

Multi-effect evaporation means that the steam generated by the pre-effect is transported to the second steam tank after being pressurized, which is used as the heat source of the second evaporation system, and the generated steam is transported to the third evaporator as a heat source, and so on. There are several such cycles, which are called several effects.

Therefore, it is not difficult to understand the multi-effect and three-effect evaporation, because in addition to this, there are 4 effects and 5 effects, as long as it does not violate the laws of thermodynamics, the n effect can be done, but in fact it cannot be done n

The indiscriminate discharge of industrial sewage is illegal, and it can be discharged normally after three-effect evaporation, which can be described as three-effect evaporation?

Summary. Kiss: A three-effect evaporator evaporates about 3 mm of water per square meter per hour.

Kiss: A three-effect evaporator evaporates about 3 mm of water per square meter per hour.

The amount of evaporation in an evaporator depends on several factors, including temperature, humidity, wind speed, and surface area, among others. A one-effect evaporator is an evaporator that evaporates 1 millimeter of water per hour under a given condition. If you want to know how much a triple-effect evaporator evaporates per square meter per hour, you need to consider its efficiency.

Generally speaking, the evaporation efficiency of a three-effect evaporator can reach three times that of a one-effect evaporator. Thus, a three-effect evaporation containing diffuser evaporates approximately 3 mm of water per square meter per hour. Please note, however, that this is only a rough estimate and the actual amount of evaporation is subject to other factors.

For specific applications and equipment, it is best to refer to the technical specifications of the equipment or consult a professional for accurate evaporation data.

Three-effect evaporator is a kind of equipment commonly used in chemical, pharmaceutical, food and other industries. It is mainly used for the treatment of highly concentrated solutions, and can achieve rapid concentration of large quantities of materials. Generally speaking, the height of the equipment is between 8-12 meters, and the structure, quality and safety of the equipment need to be taken into account.

The three-effect evaporator equipment is usually composed of multiple parts, such as the evaporator body, the feeding system, the vacuum system, the cooling system and the control system. In the design of the equipment, it is necessary to take into account the coordination and matching between the various parts, and the vertical bending to ensure the efficient and stable operation of the equipment. At the same time, the height of the equipment also needs to be adapted to the floor height of the plant to facilitate the installation and commissioning of the equipment.

In conclusion, as an important industrial equipment, the height of the three-effect evaporator varies depending on the equipment model and manufacturer, but it is usually between 8-12 meters. In the design and manufacture of equipment, it is necessary to fully consider the coordination and matching between various parts to ensure that the equipment can operate efficiently and stably.

The total evaporation area of the three-effect concentration evaporator is the sum of the evaporation area of all evaporation zones in the evaporator. The three-effect concentration evaporator is generally composed of a first-stage evaporator and two second-stage evaporators, each stage of the evaporator has a pot barrel and a group of heat transfer tubes, and its evaporation area is proportional to the volume of the pot tube. Therefore, the total evaporation area of the three-effect concentration evaporator is equal to the sum of the area of the first stage evaporator and the area of the second stage evaporator.

The structure and parameters of the three-effect concentration evaporator directly affect the effect of the concentration process. Therefore, when determining the evaporation area parameters of the three-effect concentrator evaporator, the following aspects need to be considered: first, determine the flow rate of the interceptant medium required in the process; the second is to determine the inverted height of the inverted dial stool; the third is to determine the shrinkage ratio of the evaporator; the fourth is to determine the heat transfer area of the evaporator; Fifth, determine the external dimensions of the evaporator; Sixth, determine the type and type of evaporator, and so on.

Hello, the ratio of the evaporation amount of each effect of the three-effect evaporator refers to the ratio between the evaporation of different effects in a three-effect evaporator. Typically, a three-effect evaporator consists of three effects: high efficiency, medium efficiency, and low efficiency.

Among them, the evaporation of the high-efficiency effect is the largest, and the evaporation fiber blindness of the low-efficiency effect is the smallest. Therefore, the ratio of evaporation to each effect of the three-effect evaporation device is usually. This also means that the evaporation of the high-efficiency effect is twice that of the medium-efficiency effect and 3-4 times that of the low-efficiency effect.