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Device for discharging condensed liquid in vacuum state

A technology of discharge device and vacuum state, applied in the direction of evaporator accessories, etc., can solve the problem that the drainage device cannot automatically and continuously discharge water, etc., and achieve the effects of simple structure, reduced operation intensity, and stable vacuum degree.

Inactive Publication Date: 2013-06-05
温州市天龙轻工设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the utility model is that the drainage device in the prior art cannot automatically and continuously drain water under vacuum

Method used

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  • Device for discharging condensed liquid in vacuum state
  • Device for discharging condensed liquid in vacuum state
  • Device for discharging condensed liquid in vacuum state

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] figure 1 Shown is the condensate discharge device of the present utility model, which includes a liquid receiving tank 1 and a liquid discharge device 20. The upper end of the liquid receiving tank 1 communicates with the condensation liquid inlet device in a vacuum state; the condensation liquid inlet device includes a condenser 8 And the gas-liquid separator 13, the condenser 8 and the gas-liquid separator are respectively communicated with the liquid receiving tank 1 through pipelines; The liquid discharge device 20 communicates with the liquid receiving tank 1, and discharges the condensate in the liquid receiving tank 1; the liquid discharge device 20 includes a self-priming liquid discharge pump 2; the self-priming liquid discharge The suction distance of the pump 2 is 3-4 meters, and the flow rate set is consistent with the flow rate of the liquid entering the liquid receiving tank 1; The liquid port communicates through the connecting pipe 11, and the outlet of...

Embodiment 2

[0032] figure 2Shown is a drainage device with a connecting rod type liquid level sensor; the liquid level sensor is a connecting rod float level sensor, which is placed in the cavity of the liquid receiving tank 1; the connecting rod float level sensor Two magnetic reed switches are set up and down as the upper liquid level sensor 5 and the lower liquid level sensor 6, and the hollow floating ball with a ring magnet inside is fixed on the relevant position of the magnetic reed switch inside the rod diameter, and the floating ball is within a certain range fluctuating;

[0033] When the float reaches the upper liquid level switch (5), the magnet inside the float attracts the upper reed switch to close, controlling the opening action of the drain pump (2). When the float is lower than the lower liquid level switch (5), the lower The reed switch is disconnected to control the closing action of the drain pump (2).

[0034] Other parts of this embodiment are the same as those d...

Embodiment 3

[0036] figure 2 Shown is a drainage device with a liquid level chamber; one side of the liquid receiving tank 1 is provided with a liquid level chamber 10 communicating with it; the liquid level sensor is a connecting rod float liquid level sensor, and the connecting rod float The liquid level sensor is placed in the cavity of the liquid level chamber 10 , and the lead end of the liquid level sensor is sealed and fixedly connected with the liquid level chamber 10 .

[0037] Other parts of this embodiment are the same as those described in Embodiment 1.

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Abstract

The invention discloses a device for discharging condensed liquid in a vacuum state, which belongs to the field of a drainage device of an evaporator. The device comprises a liquid receiving tank (1), wherein the upper part of the liquid receiving tank (1) is communicated with a condensed liquid inlet device in the vacuum state, and the bottom part of the liquid receiving tank (1) is communicatedwith a self-absorption liquid discharge pump (2); and a liquid level sensor is arranged in the liquid receiving tank (1) to detect the liquid level condition in the liquid receiving tank (1) and control to turn on / off the self-absorption liquid discharge pump (2) through a control system. A water inlet pipe and a water outlet pipe of the self-absorption liquid discharge pump (2) are provided withan inlet check valve (3) and an outlet check valve (4) respectively; and the self-absorption liquid discharge pump (2) has a certain absorption range and can suck in the liquid in the vacuum state through the inlet check valve (3) and discharge the liquid through the outlet check valve (4). When the flow rate of the self-absorption liquid discharge pump (2) is the same as the evaporation amount of the evaporator, the continuous drainage of the evaporator is realized. The device for discharging the condensed liquid in the vacuum state is applicable to various evaporators in the discharge of cooling water in the vacuum state and the concentrator of various organic solvents.

Description

technical field [0001] The utility model belongs to the field of evaporators, in particular to an automatic drainage device for an evaporator. Background technique [0002] At present, evaporators are widely used in chemical, pharmaceutical, food and other fields. Evaporators usually include several sets of heaters and evaporation chambers, condensers, vacuum pumps, and drainage devices. Usually, the steam generated in the previous stage of evaporation chamber is used as the heat source of the next stage heater, and the steam passing through the last stage of evaporation chamber is condensed into liquid through the condensation of the condenser and the liquid flowing out of the last stage heater is jointly output to the drain. Discharge after device. In order to reduce the boiling point of the solution and improve the evaporation efficiency, the evaporator generally works in a vacuum state. The drainage device of the evaporator is finally connected to the atmosphere. Ther...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D1/30
Inventor 孙家隆吴学文
Owner 温州市天龙轻工设备有限公司