CN219603298U - Distillation type liquid recovery device - Google Patents

Abstract

The present utility model relates to a distillation type liquid recovery device, comprising: the evaporation chamber is provided with a wastewater inlet, a concentrated solution discharge port and a steam channel; the condensing chamber is provided with an air inlet and a purified water discharge port, and a steam condenser is arranged in the condensing chamber; one end of the steam condenser is connected with the evaporation chamber through a steam channel, and the other end of the steam condenser is connected with the purified water discharge port; the heat supply device comprises a heat pump compressor, a heat exchange channel and an expansion valve; the heat pump compressor input is connected with the condensation chamber, the output is connected with the heat exchange channel, the heat exchange channel is arranged in the evaporation chamber, one end is connected with the heat pump compressor output, and the other end is connected with the condensation chamber through the expansion valve. The utility model can cool the vapor and simultaneously carry out auxiliary heating on the liquid in the evaporating chamber, fully utilizes the waste heat of the vapor and improves the energy utilization rate.

Description

Distillation type liquid recovery device

Technical Field

The utility model relates to the technical field of waste liquid treatment, in particular to a distillation type liquid recovery device.

Background

Printing wastewater is a generic term for printing residues, typesetting wastewater, plate-making wastewater, cleaning wastewater and the like generated in the printing process. The water-soluble organic compound contains a large amount of metal ions, ink, alkali, engine oil and other substances, has the characteristics of complex components, high chromaticity and difficult biochemical treatment, and is industrial wastewater which is difficult to treat. In order to further promote the generation of the green process, the printing wastewater needs to be recycled to improve the environmental protection level.

For example, the schemes disclosed in chinese patents CN211644662U and CN214528221U, the existing printing plate making production wastewater recovery treatment device focuses on improving the inside of the evaporation kettle, and adopts a cooling water tank to cool the steam, which will cause a certain energy waste.

Disclosure of Invention

The present utility model is directed to a distillation type liquid recovery device that overcomes the above-mentioned drawbacks of the prior art.

The aim of the utility model can be achieved by the following technical scheme:

a distillation liquid recovery apparatus, the apparatus comprising:

the evaporation chamber is provided with a wastewater inlet, a concentrated solution discharge port and a steam channel;

the condensing chamber is provided with an air inlet and a purified water discharge port, and a steam condenser is arranged in the condensing chamber; one end of the steam condenser is connected with the evaporation chamber through a steam channel, and the other end of the steam condenser is connected with the purified water discharge port;

the heat supply device comprises a heat pump compressor, a heat exchange channel, an expansion valve and a heater arranged in the evaporation chamber; the heat pump compressor input is connected with the condensation chamber, the output is connected with the heat exchange channel, the heat exchange channel is arranged in the evaporation chamber, one end is connected with the heat pump compressor output, and the other end is connected with the condensation chamber through the expansion valve.

Further, a steam baffle plate is arranged below the steam channel in the evaporation chamber.

Further, the steam baffle forms an acute angle with the inner wall of the evaporation chamber.

Further, the free end of the steam baffle deflects towards the direction of gravity.

Further, the steam channel is arranged at a port in the evaporation chamber and is provided with a steam filter.

Further, the air inlet is provided with an air filter.

Further, the evaporation chamber is also provided with a liquid level detector.

Further, the liquid level detector is provided with a plurality of along the vertical direction, includes: high-order detector and low-order detector

Further, a liquid seal is arranged at the top cover of the evaporation chamber.

Further, the liquid recovery device is provided with a maintenance platform.

Compared with the prior art, the utility model has the following beneficial effects:

1) According to the utility model, the air source heat pump is used as an auxiliary heating device, the heat exchange is carried out by utilizing the outside or circulating air and the steam radiator, the liquid in the evaporation chamber is heated while the water vapor is cooled, the waste heat of the steam is fully utilized, and the energy utilization rate is improved.

2) According to the utility model, a cooling water tank and an auxiliary water tank heat dissipation device which are not required to be arranged in a bulkier way are not required, the arrangement mode and the position of the condensing chamber are more flexible, and the whole recovery device is more compact.

Drawings

FIG. 1 is a schematic diagram of a distillation type liquid recovery apparatus according to the present utility model;

the reference numerals in the figures indicate: 1. the device comprises an evaporation chamber, 11, a wastewater inlet, 12, a concentrated solution discharge port, 13, a steam baffle, 2 steam channels, a steam filter, 21, a steam filter, 3, a condensation chamber, 31, an air inlet, 32, a steam condenser, 33, a purified water discharge port, 34, an air filter, 4, a heat pump compressor, 5, a heat exchange channel, 6, an expansion valve, 7, a heater, 81, a high-level detector, 82, a low-level detector, 9 and a maintenance platform.

Detailed Description

The utility model will now be described in detail with reference to the drawings and specific examples. The present embodiment is implemented on the premise of the technical scheme of the present utility model, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present utility model is not limited to the following examples.

Example 1

As one example of the distillation type liquid recovery apparatus of the present utility model, as shown in fig. 1, the distillation type liquid recovery apparatus includes:

an evaporation chamber 1 provided with a wastewater inlet 11, a concentrate discharge port 12, and a steam passage 2;

a condensing chamber 3 provided with an air inlet 31 and a purified water discharge port 33, and a steam condenser 32 arranged in the condensing chamber 3; one end of the steam condenser 32 is connected with the evaporation chamber 1 through the steam channel 2, and the other end is connected with the purified water discharge port 33;

the heating device comprises a heat pump compressor 4, a heat exchange channel 5, an expansion valve 6 and a heater 7 arranged in the evaporation chamber 1; the input end of the heat pump compressor 4 is connected with the condensation chamber 3, the output end is connected with the heat exchange channel 5, the heat exchange channel 5 is arranged in the evaporation chamber 1, one end of the heat exchange channel is connected with the output end of the heat pump compressor 4, and the other end of the heat exchange channel is connected with the condensation chamber 3 through the expansion valve 6.

Specifically, the wastewater inlet 11 may be connected to a prior wastewater treatment apparatus such as a filtration tank or a sedimentation tank, and an electromagnetic valve for controlling the opening and closing and the flow rate is provided thereon to supply water to the recovery apparatus. The bottom of the evaporation chamber 1 is provided with a concentrate discharge port 12 for discharging the liquid after distillation concentration. The evaporation chamber 1 is further provided with a plurality of liquid level detectors along the vertical direction, wherein the liquid level detectors comprise a high level detector 81 for warning the excessive high liquid level and a low level detector 82 for reminding the excessive low liquid level of the need of liquid adding. The top cover of the evaporating chamber 1 is also provided with a liquid seal to prevent the steam with pollution particles from escaping to pollute the air.

Specifically, the steam condenser 32 disposed in the condensing chamber 3 adopts a plurality of rows of parallel radiating pipes to disperse steam into each radiating pipe, thereby enlarging the radiating area and improving the heat exchange efficiency. The condensed water is discharged from the purified water discharge port 33 for recycling. The air intake port 31 is also provided with an air filter 34 for filtering the intake outside air.

According to the utility model, an air source heat pump is adopted as an auxiliary heating device, external air is extracted into a steam condensing chamber 3, the air at the inner and outer periphery of the condensing chamber 3 and a steam condenser 32 firstly perform primary heat exchange, a heat pump compressor 4 compresses the air which is primarily heated, then the air is heated up further to form a heat exchange medium, the heat exchange medium is conveyed into a heat exchange channel 5 to heat waste liquid in the steam chamber 1, the heat exchange medium after heat energy is released is reduced in pressure and temperature through an expansion valve 6 and then returns to the bottom of the condensing chamber 3, and heat exchange is performed again with the steam condenser 32, and the heat exchange medium can be extracted again by the heat pump compressor for circulation. The waste heat that this scheme can make full use of steam heats, need not to set up the huge coolant tank of bloated, and condensing structure is nimble more compact to can effectively reduce the waste of resource.

Specifically, a steam baffle 13 is further arranged below the steam channel 2 in the evaporation chamber 1, the steam baffle 13 forms an acute angle with the inner wall of the evaporation chamber 1, and the free end of the steam baffle faces the ground direction. Compared with the traditional horizontally placed steam baffle, the baffle in the embodiment not only can block the steam carrying particles, but also forms an acute angle with the inner wall of the evaporation chamber 1, so that the water drops formed by the blocked steam on the baffle can be guided to slide back into the waste liquid below to be heated continuously more quickly, but the free end of the baffle is upward, so that the connection part between the steam baffle 13 and the inner wall of the evaporation chamber 1 is easy to accumulate the reflux liquid, and the free end of the baffle is arranged towards the gravity direction. The steam channel 2 is also provided with a steam filter 21 at a port in the evaporation chamber 1 for further filtering particles possibly carried in the steam.

The side of the liquid recovery device is also provided with a maintenance platform 9 and stairs for going up and down, so that the operation of staff is facilitated.

The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims (10)

1. A distillation liquid recovery apparatus, the apparatus comprising:

an evaporation chamber (1) provided with a wastewater inlet (11), a concentrate discharge port (12) and a steam channel (2);

the condensing chamber (3) is provided with an air inlet (31) and a purified water discharge port (33), and a steam condenser (32) is arranged in the condensing chamber (3); one end of the steam condenser (32) is connected with the evaporation chamber (1) through the steam channel (2), and the other end is connected with the purified water discharge port (33);

the heating device comprises a heat pump compressor (4), a heat exchange channel (5), an expansion valve (6) and a heater (7) arranged in the evaporation chamber (1); the heat pump compressor is characterized in that the input end of the heat pump compressor (4) is connected with the condensation chamber (3), the output end of the heat pump compressor is connected with the heat exchange channel (5), the heat exchange channel (5) is arranged in the evaporation chamber (1), one end of the heat exchange channel is connected with the output end of the heat pump compressor (4), and the other end of the heat exchange channel is connected with the condensation chamber (3) through the expansion valve (6).

2. A distillation liquid recovery apparatus according to claim 1, wherein a steam baffle (13) is arranged in the evaporation chamber (1) below the steam channel (2).

3. A distillation liquid recovery apparatus according to claim 2, wherein the vapor barrier (13) is at an acute angle to the inner wall of the evaporation chamber (1).

4. A distillation liquid recovery apparatus according to claim 3, wherein the free end of the vapor barrier (13) deflects towards gravity.

5. A distillation liquid recovery device according to claim 1, wherein the vapor passage (2) is provided with a vapor filter (21) at a port in the evaporation chamber (1).

6. A distillation liquid recovery device according to claim 1, wherein the air inlet (31) is provided with an air filter (34).

7. A distillation liquid recovery device according to claim 1, wherein the evaporation chamber (1) is further provided with a liquid level detector.

8. The distillation liquid recovery apparatus according to claim 7, wherein the liquid level detector is provided in plurality in a vertical direction, comprising: a high-level detector (81) and a low-level detector (82).

9. A distillation type liquid recovery apparatus according to claim 1, wherein a liquid seal is provided at the top cover of the evaporation chamber (1).

10. A distillation liquid recovery device according to claim 1, wherein the liquid recovery device is provided with a maintenance platform (9).