CN210473469U - Multistage condensing device - Google Patents

Abstract

The utility model discloses a multistage condensing equipment, include: the primary condenser is provided with a first steam inlet, a first steam outlet, a first liquid outlet and a first radiating fin; the second-stage condenser is provided with a second steam inlet, a second liquid outlet and a second radiating fin, and a radiating pipeline is connected between the first radiating fin and the second radiating fin; the cooling pipeline is at least partially positioned in the cold water pool so as to cool the cooling pipeline; the phase separation tank is provided with two liquid inlets, a backflow port and a third liquid outlet, the two liquid inlets are respectively connected with the first liquid outlet and the second liquid outlet, and the third liquid outlet is used for discharging waste liquid. The utility model discloses a condensation effect is fine.

Description

Multistage condensing device

Technical Field

The utility model relates to a chemical industry field, concretely relates to multistage condensing equipment.

Background

The condenser is a component of a refrigeration system, belongs to one type of heat exchangers, and can convert gas into liquid to transfer heat in the pipe to air near the pipe in a quick mode; the working process of the condenser is a heat release process, and how to accelerate heat dissipation is an important link.

Most of condensers in the market utilize water for heat dissipation and cooling, a large amount of cold water needs to be introduced into the condensers, and cold and hot water needs to be continuously replaced, so that the condenser pipes can be guaranteed to dissipate heat in time; the heat dissipation mode can only dissipate heat under the premise of cold water supply, and has low heat dissipation speed and poor heat dissipation effect.

The dehydration process of the esterification reaction has more varieties, the method of taking water out by using an azeotropic mixture formed by an organic solvent and water is a common method, the water-immiscible organic solvent such as toluene, benzene, cyclohexane and the like can form the azeotropic mixture with water, and the organic solvent can be recycled after standing and layering, so that the esterification reaction in chemical production is carried out by adopting the process. But traditional equipment generally adopts reation kettle to combine the tower body, the condenser, oil water separator forms the extrinsic cycle, organic solvent returns reation kettle through the U-shaped pipe that connects in oil water separator and reation kettle and reaches the recycling purpose, this kind of structure is at the during operation, pressure is difficult to keep invariable in the reation kettle, backflow pipeline often is full of the solvent and leads to inside and outside pressure imbalance of reation kettle, the backward flow is not smooth and easy, even install U-shaped pipe and oil water separator and go up installation blow-down pipe and come balanced pressure, still difficult messenger system is smooth to be worked and the material phenomenon often appears dashing.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing a multi-stage condensing device,

a multi-stage condensing unit comprising:

the primary condenser is provided with a first steam inlet, a first steam outlet and a first liquid outlet, the first steam inlet and the first liquid outlet are formed at the bottom of the primary condenser, the first steam outlet is formed at the top of the primary condenser, a first radiating fin is arranged in an area between the first steam inlet and the first steam outlet of the primary condenser, and the direction of cooling liquid of the first radiating fin is from bottom to top;

the secondary condenser is provided with a second steam inlet and a second liquid outlet, the second steam inlet is formed at the top of the secondary condenser, the second liquid outlet is formed at the bottom of the secondary condenser, a second cooling fin is arranged in the secondary condenser between the second steam inlet and the second liquid outlet, the flowing direction of cooling liquid of the second cooling fin is from top to bottom, the second cooling fin and the first cooling fin are connected through the cooling pipeline and form a circulation channel of the cooling liquid in the secondary condenser, and the cooling pipeline is positioned outside the primary condenser and the secondary condenser;

the cooling system comprises an ice water tank, wherein at least part of a cooling pipeline is positioned in the cold water tank so as to cool the cooling pipeline;

the phase separation tank is provided with two liquid inlets, a backflow port and a third liquid outlet, wherein the liquid inlets are respectively connected with the first liquid outlet and the second liquid outlet, and the third liquid outlet is used for discharging waste liquid.

The utility model has the advantages that: solvent steam rises to the one-level condenser in, the condensate that the one-level condenser produced flows into in the phase splitting jar, the layering stews in the phase splitting jar, the upper solvent of phase splitting jar flows back to reation kettle in through the backward flow mouth, chlorine absorbs the moisture in the raw materials simultaneously and generates hydrochloric acid and subsides in the bottom of phase splitting jar, discharge through the third liquid outlet is continuous this moment, the gas that does not condense gets into in the second grade condenser and continues the cooling, the coolant liquid flows into the phase splitting jar through the liquid seal by the second liquid outlet of second grade condenser in, the flow direction of the coolant liquid of first fin and second fin is the same with the gas motion direction in respective condenser, thereby make the gas of highest temperature make the cooling effect better, the coolant liquid constantly passes through the cooling circulation of ice water pool, guarantee condensing efficiency.

Drawings

Fig. 1 is a schematic view of a multistage condensing apparatus.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.

Referring to fig. 1, a multi-stage condensing apparatus 100 is used to condense and separate solvent vapor.

Multistage condensation device 100 comprising:

the primary condenser 1 is provided with a first steam inlet 11, a first steam outlet 12 and a first liquid outlet 13, the first steam inlet 11 and the first liquid outlet 13 are formed at the bottom of the primary condenser 1, the first steam outlet 12 is formed at the top of the primary condenser 1, a first radiating fin 14 is arranged in the primary condenser 1 between the first steam inlet 11 and the first steam outlet 12, and the direction of cooling liquid of the first radiating fin 14 is from bottom to top;

a secondary condenser 2 having a second steam inlet 21 and a second liquid outlet 22, the second steam inlet 21 being formed at the top of the secondary condenser 2, the second liquid outlet 22 being formed at the bottom of the secondary condenser, the secondary condenser being provided with a second heat sink 23 in a region between the second steam inlet 21 and the second liquid outlet 22, the second heat sink 23 having a coolant flowing direction from top to bottom, the second heat sink 23 and the first heat sink 14 being connected by a heat sink pipe 30 and forming a circulation passage of the coolant inside, the heat sink pipe 30 being located outside the primary condenser 1 and the secondary condenser 2;

the cooling pipeline 30 at least partially penetrates through the cold water tank 3 so as to cool the cooling pipeline 30;

the phase separation tank 4 is provided with two liquid inlets, a return port and a third liquid outlet 41, the two liquid inlets are respectively connected with the first liquid outlet 13 and the second liquid outlet 22, and the third liquid outlet 41 is used for discharging waste liquid.

According to multistage condensing equipment, solvent steam rises to in the one-level condenser 1, the condensate that one-level condenser 1 produced flows into phase splitting jar 4, the layering of stewing in phase splitting jar 4, phase splitting jar 4's upper solvent flows back to reation kettle through the backward flow mouth in, simultaneously moisture in the chlorine absorption raw materials generates hydrochloric acid and subsides in phase splitting jar 4's bottom, constantly discharge through the third liquid outlet this moment, the gas that does not condense gets into in secondary condenser 2 continues the cooling, the coolant liquid flows into phase splitting jar 11 through the liquid seal by secondary condenser 2's second liquid outlet, the flow direction of the coolant liquid of first fin 14 and second fin 23 is the same with the gas motion direction in respective condenser, thereby make the gas of highest temperature make the cooling effect better, the coolant liquid constantly passes through ice water pool cooling circulation simultaneously, guarantee condensing efficiency.

Further, the first and second fins 14 and 23 are each spiral-shaped to have a larger heat exchange area at a limited height.

Further, the surfaces of the first and second fins 14 and 23 are formed with projections to further increase the heat exchange area.

The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (3)

1. A multi-stage condensing unit, comprising:

the primary condenser is provided with a first steam inlet, a first steam outlet and a first liquid outlet, the first steam inlet and the first liquid outlet are formed at the bottom of the primary condenser, the first steam outlet is formed at the top of the primary condenser, a first radiating fin is arranged in an area between the first steam inlet and the first steam outlet of the primary condenser, and the direction of cooling liquid of the first radiating fin is from bottom to top;

the secondary condenser is provided with a second steam inlet and a second liquid outlet, the second steam inlet is formed at the top of the secondary condenser, the second liquid outlet is formed at the bottom of the secondary condenser, a second cooling fin is arranged in the secondary condenser between the second steam inlet and the second liquid outlet, the flowing direction of cooling liquid of the second cooling fin is from top to bottom, the second cooling fin and the first cooling fin are connected through a cooling pipeline, a circulating channel of the cooling liquid is formed inside the second cooling fin, and the cooling pipeline is positioned outside the primary condenser and the secondary condenser;

the cooling pipeline is at least partially positioned in the cold water pool so as to cool the cooling pipeline;

the phase separation tank is provided with two liquid inlets, a backflow port and a third liquid outlet, wherein the liquid inlets are respectively connected with the first liquid outlet and the second liquid outlet, and the third liquid outlet is used for discharging waste liquid.

2. The multi-stage condensing device of claim 1, wherein said first and second fins are each helical.

3. The multi-stage condensation device of claim 2, wherein the surfaces of the first and second fins form a protrusion.

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