CN211733889U

CN211733889U - Evaporator tank for evaporator and evaporator

Info

Publication number: CN211733889U
Application number: CN201922417146.7U
Authority: CN
Inventors: 刘威; 刘成玉
Original assignee: Kunshan Wsd Environmental Protection Equipment Co ltd
Current assignee: Kunshan Wsd Environmental Protection Equipment Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-23
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to an evaporator tank and an evaporator for an evaporator, which comprises a tank body with a cavity, a filtering device arranged in the tank body, and a heating system at least partially arranged in the tank body; heating system is including setting up storage mechanism in the jar body, right the heating device that the material in the storage mechanism carries out the heating, and connect storage mechanism and heating device's heat cycle system is equipped with the heat medium in the storage mechanism, the heat medium passes through heat cycle system is in circulate between storage mechanism and the heating device. The evaporating pot and the evaporator for the evaporator can reduce cost, prolong the service life of the device, reduce the content of impurities such as foam and the like in generated steam and ensure high quality of effluent water.

Description

Evaporator tank for evaporator and evaporator

Technical Field

The utility model relates to an evaporating pot and evaporimeter for evaporimeter belongs to the environmental protection equipment field.

Background

Energy and environmental issues have become increasingly prominent in industrial production, which puts higher demands on energy saving technology. The discharge of industrial wastewater causes serious environmental pollution, in order to protect the environment, the sewage discharge needs to be strictly controlled, each enterprise producing industrial wastewater needs to discharge sewage after treating the sewage in a special sewage treatment plant, and the sewage treatment plant generally charges according to the treatment capacity, for example, one ton and several thousand yuan, so the cost of the enterprise on sewage treatment is greatly increased. The heat pump technology is an efficient and environment-friendly energy-saving technology, and can be widely applied to the industrial production fields of emulsion wastewater, cleaning agent wastewater, release agent wastewater, rolling fluid wastewater, heat treatment wastewater, degreasing wastewater, electroplating wastewater, printing ink wastewater, passivation wastewater, phosphating wastewater, garbage penetrating fluid, seawater desalination and the like. After the heat pump evaporation concentration, the distilled water meeting the discharge standard can be extracted from the sewage, the distilled water can be directly discharged or recycled, the rest concentrate is discharged to a sewage treatment plant for treatment, and the sewage treatment cost of an enterprise can be greatly reduced, for example, 10 tons of sewage can be decomposed into 9 tons of distilled water and 1 ton of concentrate after the evaporation concentration, and the enterprise only needs to spend the cost of 1 ton of treatment capacity, so that the sewage treatment cost is greatly reduced.

However, most of the heating devices used in the existing evaporators are prone to scaling, corrosion and the like due to the fact that waste liquid is loaded, and the interior of the heating devices is not easy to clean, so that the service life of the heating devices is greatly shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an evaporating pot and evaporimeter for evaporimeter can reduce cost, increases the life of device, and impurity content such as foam is less in the produced steam, goes out water quality of water height.

In order to achieve the above purpose, the utility model provides a following technical scheme: an evaporator tank for an evaporator, comprising a tank body having a cavity, a filter device disposed within the tank body, and a heating system at least partially disposed within the tank body; heating system is including setting up storage mechanism in the jar body, right the heating device that the material in the storage mechanism carries out the heating, and connect storage mechanism and heating device's heat cycle system is equipped with the heat medium in the storage mechanism, the heat medium passes through heat cycle system is in circulate between storage mechanism and the heating device.

Furthermore, the tank body comprises an upper tank body and a lower tank body which are opposite, and a bottom plate for supporting and fixing the storage mechanism is arranged in the lower tank body.

Furthermore, the head of the upper tank body is provided with a steam outlet, and the bottom of the lower tank body is provided with a concentrated solution outlet.

Further, a defoaming device for removing foam in the steam is arranged close to the steam outlet.

Further, the demister includes a wire mesh demister disposed adjacent to the steam outlet and at least two baffles disposed above the storage mechanism.

Further, store the mechanism top and be equipped with baffle and lower baffle, go up baffle and lower baffle dislocation interval setting in vertical direction.

Further, still be equipped with waste liquid entry, defoaming agent entry and washing liquid entry on the jar body.

Furthermore, still be equipped with window subassembly, valve and sensor subassembly on the jar body.

Furthermore, the upper tank body and the lower tank body are connected through a flange.

The utility model also provides an evaporimeter, its evaporating pot that includes for the evaporimeter.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the evaporating tank for the evaporator and the evaporator of the utility model can avoid the waste liquid from damaging the inside of the heating device and prolong the service life of the device by arranging the storage mechanism which is communicated with the heating medium in the tank body, thereby saving the cost and being easy to clean;

2. the arrangement of the partition plate and the wire mesh demister can avoid the phenomenon that the generated steam has less impurity content such as foam and the like, and the quality of the discharged water is improved.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 and 2 are schematic control diagrams of a low-temperature vacuum evaporator according to a preferred embodiment of the present invention;

FIG. 3 is a schematic view of a construction of a vaporization tank in the low temperature vacuum vaporizer shown in FIG. 1;

fig. 4 is a schematic view of a structure of a condensing tank in the low temperature vacuum evaporator shown in fig. 1.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

It should be noted that: the terms such as "upper", "lower", "left", "right", "inner" and "outer" of the present invention are described with reference to the drawings, and are not intended to be limiting terms.

Referring to fig. 1 to 4, a low temperature vacuum evaporator according to a preferred embodiment of the present invention includes:

an evaporation tank 1 as a main container for evaporation, wherein a concentrated solution discharge pipeline 11 is arranged at the lower part of the evaporation tank 1, a waste liquid inlet pipeline 12 is arranged at the upper part of the evaporation tank 1, and the inside of the evaporation tank 1 can be kept in a decompression state;

a heating system 2 for heating the waste liquid in the evaporation tank 1, wherein the heating system 2 comprises a first storage mechanism 21 arranged in the tank body, a heating device 22 for heating the substances in the first storage mechanism 21, and a heat circulation system 23 for connecting the first storage mechanism 21 and the heating device 22, and a heat medium is arranged in the first storage mechanism 21;

a condensation tank 3 for cooling, the condensation tank 3 being connected to the heating device 22 through the heat circulation system 23, the heat medium being circulated among the first storage mechanism 21, the heating device 22, and the condensation tank 3 through the heat circulation system 23;

a distilled water tank 4 for storing distilled water, wherein the distilled water tank 4 is connected with the condensing tank 3, and a distilled water discharge port (not shown) is arranged on the distilled water tank 4;

and the pressure reducing device 5 is connected with the distilled water tank 4, so that the pressure in the evaporation tank 1, the condensation tank 3 and the distilled water tank 4 is reduced.

Specifically, the heat cycle system 23 includes a first pipe 231 connecting the first storage mechanism 21, the heating device 22 and the condensation tank 3, and a second pipe 232 connecting the first storage mechanism 21 and the condensation tank 3. The second pipeline 232 is provided with a first expansion valve 24 for cooling the heat medium, the heating device 22 is a heat pump compressor for heating the heat medium flowing out of the condensation tank 3. In the present embodiment, the first storage mechanism 21 is a coil, but in other embodiments, other storage mechanisms may be used to store the heating medium; and by adopting the coil pipe, the contact area between the coil pipe and the waste liquid can be greatly increased, and the heating efficiency can be increased. The heat medium is introduced from the condensing tank 3 into the first storage means 21 through the second pipe 232 via the heat pump compressor, and in the process, the gaseous heat medium is compressed into a liquid state to release a large amount of heat, and then heat exchange is performed with the waste liquid in the evaporation tank 1 to heat it. Subsequently, the liquid heating medium flows into the first pipe 231, and then enters the condensation tank 3 through the first expansion valve 24, and in the process, the liquid heating medium of medium temperature and high pressure is converted into a gaseous heating medium of low temperature and low pressure by the throttling function of the first expansion valve 24, and simultaneously absorbs a large amount of external heat, so that the heat exchange is performed on the steam from the evaporation tank 1 in the condensation tank 3 to reduce the temperature thereof, thereby achieving a cooling effect.

In this embodiment, the condensation tank 3 includes an outer cylinder 31 and a cold water pipe group 32 disposed in the outer cylinder 31 and connected to the distillation tank and the distillation water tank 4, and the steam generated by the evaporation tank 1 enters the cold water pipe group 32 through a pipeline, is cooled by the post-cooling heat medium in the outer cylinder 31, and then enters the distillation water tank 4.

In this embodiment, a second storage mechanism 41 is disposed in the distilled water tank 4, the second storage mechanism 41 is connected to the first storage mechanism 21 through a third pipeline 42, and is connected to the condensation tank 3 through a fourth pipeline 44, a second expansion valve 43 is disposed on the third pipeline 42, and a check valve 45 is disposed on the fourth pipeline 44. The liquid heating medium of medium temperature and high pressure flows into the third pipeline 42, is converted into a gaseous heating medium of low temperature and low pressure by the second expansion valve 43, and then enters the second storage mechanism 41 to cool the distilled water in the distilled water tank 4, and then enters the outer cylinder 31 of the condensation tank 3 again by the fourth pipeline 44. In an embodiment, the second storage mechanism 41 is a coiled tube, although in other embodiments, other storage mechanisms may be used. Through setting up second storage mechanism 41, need not additionally to set up cooling device and come to cool down the processing to distilled water, greatly practiced thrift the use of the energy, reduced the energy consumption.

In the present embodiment, the evaporation tank (tank) 1 includes an upper tank 13 and a lower tank 14 which are opposite to each other, and a bottom plate (not shown) for supporting and fixing the first storage mechanism 21 is provided in the lower tank 14; the head of the upper tank 13 is provided with a steam outlet 131, and the bottom of the lower tank 14 is provided with a concentrated solution outlet 141. Preferably, the upper and

lower cans

13 and 14 are connected by a flange 100 to facilitate assembly and disassembly. Near the steam outlet 131, a demister 15 for removing foam from the steam is provided. The demister 15 comprises a wire mesh demister 151 disposed adjacent to the steam outlet 131 and at least two baffles disposed above the first storage mechanism 21. An upper partition 152 and a lower partition 153 are arranged above the first storage mechanism 21, and the upper partition 152 and the lower partition 153 are arranged at intervals in a staggered manner in the vertical direction. During the rising process of the steam formed by the evaporation of the wastewater, the foam and other impurities are blocked by the partition plates and attached to the partition plates, and the gas continuously rises through the interval between the upper partition plate 152 and the lower partition plate 153, then passes through the wire mesh demister 151 to perform a round of defoaming, and finally enters the condensing tank 3 through the steam outlet 131 for cooling. The design ensures that the distilled water obtained by final cooling does not contain foam and other impurities, and the quality of the effluent is greatly improved. Indeed, in other embodiments, three or more partition plates may be further provided to perform defoaming and impurity removal, and the shape of the partition plate may be selected according to actual conditions, such as a curved shape, an inclined plane shape, and the like.

In this embodiment, the pressure reducing device 5 includes a centrifugal water pump 51 and a water jet 52, and the centrifugal water pump 51 and the water jet 52 circulate the distilled water in the distilled water tank 4 through fifth pipes 53 connected to the upper and lower portions of the distilled water tank 4 to reduce the pressure in the evaporation tank 1, the condensation tank 3, and the distilled water tank 4, thereby forming a negative pressure. The condensation tank 3 is connected to a water jet 52 through a sixth pipeline 54, and the distilled water cooled in the condensation tank 3 is collected to a fifth pipeline 53 through the sixth pipeline 54 and introduced into the distilled water tank 4. Part of the steam which is not completely condensed is cooled in the distilled water tank 4 through the second storage mechanism 41, so that the steam is completely condensed into distilled water and the temperature is low. The distilled water is then discharged through a seventh pipe 40.

In the evaporator of the utility model, the evaporating pot 1 is also communicated with a defoaming agent inlet pipeline 101 and a cleaning liquid inlet pipeline 102; the evaporation tank 1 is further provided with a window assembly 103, a valve assembly (not shown), a sensor assembly 104, etc., which are all in the prior art and will not be described herein.

In summary, the following steps: the utility model discloses an evaporating pot and low temperature vacuum evaporator have following effect:

1) the refrigeration principle is skillfully applied, the first storage mechanism and the condensing tank are communicated with each other, and a heat circulation system is communicated between the first storage mechanism and the condensing tank, so that the heat medium liquefaction process and the vaporization process are fully applied, the heating of waste liquid and the cooling of steam are respectively realized, the energy transfer in the conversion process of each physical phenomenon is fully utilized, and the requirement on external energy is saved;

2) the storage mechanism which is communicated with the heating medium is arranged in the tank body, so that the damage of waste liquid to the interior of the heating device can be avoided, the service life of the device is prolonged, the cost is saved, and the device is easy to clean;

3) the arrangement of the partition plate and the wire mesh demister can avoid the phenomenon that the generated steam has less impurity content such as foam and the like, and the quality of the discharged water is improved.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. 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

1. An evaporator tank for an evaporator, comprising a tank body having a cavity, a filter device disposed within the tank body, and a heating system at least partially disposed within the tank body; heating system is including setting up storage mechanism in the jar body, right the heating device that the material in the storage mechanism carries out the heating, and connect storage mechanism and heating device's heat cycle system is equipped with the heat medium in the storage mechanism, the heat medium passes through heat cycle system is in circulate between storage mechanism and the heating device.

2. An evaporator tank for an evaporator according to claim 1 wherein the tank body comprises an upper tank body and a lower tank body opposed to each other, and a bottom plate for supporting and fixing the storage mechanism is provided in the lower tank body.

3. An evaporation tank for an evaporator according to claim 2, wherein the upper tank is provided at a head portion thereof with a steam outlet, and the lower tank is provided at a bottom portion thereof with a concentrated liquid discharge port.

4. An evaporator tank for an evaporator according to claim 3, wherein a defoaming device for removing bubbles in the steam is provided near the steam outlet.

5. An evaporator tank for an evaporator as set forth in claim 4 wherein said demister comprises a wire mesh demister disposed adjacent to said vapor outlet and at least two baffles disposed above said storage mechanism.

6. An evaporator tank for an evaporator according to claim 5, wherein an upper partition and a lower partition are provided above said storage mechanism, said upper partition and said lower partition being provided at a vertically offset interval.

7. An evaporation tank for an evaporator according to claim 1, wherein the tank body is further provided with a waste liquid inlet, a defoaming agent inlet and a cleaning liquid inlet.

8. An evaporator tank for an evaporator according to claim 1, wherein the tank body is further provided with a window assembly, a valve and a sensor assembly.

9. An evaporation tank for an evaporator according to claim 2, wherein the upper tank and the lower tank are connected by a flange.

10. An evaporator, comprising an evaporation tank for an evaporator according to any one of claims 1 to 9.