Full-automatic MVR (mechanical vapor recompression) evaporator concentrated liquor discharger

Abstract

The invention discloses a full-automatic MVR (Mechanical Vapor Recompression) evaporator concentrated liquor discharger which comprises an evaporator tank body, the evaporator tank body comprises a first heating chamber and a first evaporation chamber, and the lower end of the first heating chamber is connected with the lower end of the first evaporation chamber through a first connecting pipe; the upper end of the first heating chamber is connected with the middle of the left end of the first evaporation chamber through a second connecting pipe; the heating assembly comprises a first compressor and a first heating plate, the first heating plate is arranged in the first heating chamber, the upper end of the first heating plate penetrates through the first heating chamber and is provided with a first steam inlet, and the first steam inlet is connected with the upper end of the first evaporation chamber through a third connecting pipe; and the first compressor is arranged on the third connecting pipe. According to the full-automatic MVR evaporator concentrated liquor discharger provided by the invention, low-temperature and low-pressure evaporated steam can be compressed to form high-temperature and high-pressure steam to evaporate concentrated liquor for the second time, dependence on external steam is not needed, and more energy is saved.

Description

Technical Field

[0001] The invention belongs to the field of concentrated liquid concentration and evaporation, and in particular relates to a fully automatic MVR evaporator concentrated liquid discharger. Background Art

[0002] The MVR system, full name "Mechanical Vapor Recompression" system, is a new type of high-efficiency and energy-saving evaporation equipment. The MVR system is driven by electric energy, and uses the secondary steam and its energy generated by the evaporation of the material itself, which is compressed by the steam compressor to increase the enthalpy of the secondary steam, and then sent to the heating chamber as a heating heat source, thereby reducing the demand for external energy. However, when the current MVR evaporator is used again, it still needs to continuously use external steam for evaporation, and the consumption of electric energy is still high. Summary of the invention

[0003] In order to solve the deficiencies in the prior art, the present invention provides a fully automatic MVR evaporator concentrate discharger.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A fully automatic MVR evaporator concentrate discharger, comprising:

[0006] An evaporator tank body, the evaporator tank body comprising a first heating chamber and a first evaporation chamber, the first heating chamber is arranged at the lower left end of the first evaporation chamber, the lower end of the first heating chamber and the lower end of the first evaporation chamber are connected through a first connecting pipe, and the upper end of the first heating chamber and the middle of the left end of the first evaporation chamber are connected through a second connecting pipe;

[0007] A heating assembly, the heating assembly includes a first compressor and a plurality of first heating plates, the first heating plates are arranged in the first heating chamber, the upper end of the first heating plate passes through the first heating chamber and is provided with a first steam inlet, the first steam inlet and the upper end of the first evaporation chamber are connected through a third connecting pipe, and the first compressor is arranged on the third connecting pipe.

[0008] Furthermore, the heating assembly includes a distilled water tank and a first preheater, the first steam inlet is provided with a first steam pipe, the lower end of the first heating plate is provided with a first condensate pipe passing through the first heating chamber, the first condensate pipe is connected to one end of the distilled water tank, one end of the first preheater is connected to the other end of the distilled water tank, and the other end of the first preheater is connected to the first steam pipe.

[0009] Furthermore, a first feed pipe is provided at the lower end of the first connecting pipe, a second steam pipe is provided at the left end of the first feed pipe, and the second steam pipe is connected to the first preheater.

[0010] Furthermore, the fully-automatic MVR evaporator concentrate discharger includes a drainage assembly, which includes a first collecting bucket, a first hydrometer, a first valve and a second valve. The lower end of the first connecting pipe is provided with a first discharge pipe, the first collecting bucket is arranged below the first discharge pipe, one end of the first valve is connected to the first discharge pipe, the other end of the first valve is connected to the upper end of the first collecting bucket, the second valve is connected to the lower end of the first collecting bucket, and the first hydrometer is arranged at the lower end of the first evaporation chamber.

[0011] Furthermore, the drainage assembly includes a first liquid level gauge, and the first liquid level gauge is arranged in the first collecting barrel.

[0012] The fully automatic MVR evaporator concentrate discharger disclosed in the present invention has the beneficial effect, compared with the prior art, that it can quickly compress the low-temperature and low-pressure evaporated steam to form high-temperature and high-pressure steam for secondary evaporation of the concentrate, and the evaporated steam becomes a steam source for secondary evaporation of the concentrate, without relying on external steam, which is more energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic structural diagram of a preferred embodiment provided by the present invention.

[0014] Figure 2 It is a schematic structural diagram of an evaporator tank body according to a preferred embodiment of the present invention.

[0015] Figure 3 It is a schematic structural diagram of the first heating plate of a preferred embodiment provided by the present invention.

[0016] The reference numerals include: 110, first evaporation chamber; 120, first heating chamber; 130, first heating plate; 131, first steam pipe; 132, first condensate pipe; 210, first connecting pipe; 211, first feed pipe; 212, first discharge pipe; 220, second connecting pipe; 230, third connecting pipe; 240, first collecting barrel; 250, first liquid level gauge; 260, first hydrometer; 270, first valve; 280, second valve; 310, distilled water tank; 320, first preheater; 330, first compressor. DETAILED DESCRIPTION

[0017] The present invention discloses a fully automatic MVR evaporator concentrate discharger. The specific implementation of the present invention is further described below in conjunction with preferred embodiments.

[0018] See attached figure Figure 1-3 , Figure 1 is a schematic structural diagram of a preferred embodiment provided by the present invention, Figure 2is a structural schematic diagram of an evaporator tank body of a preferred embodiment provided by the present invention, Figure 3 Schematic diagram of the structure of the first heating plate 130 according to the preferred embodiment of the present invention.

[0019] Preferred embodiments.

[0020] This embodiment provides a fully automatic MVR evaporator concentrate discharger, comprising:

[0021] An evaporator tank body, the evaporator tank body comprising a first heating chamber 120 and a first evaporation chamber 110, the first heating chamber 120 being arranged at the lower left end of the first evaporation chamber, the lower end of the first heating chamber 120 and the lower end of the first evaporation chamber 110 being connected via a first connecting pipe 210, and the upper end of the first heating chamber 120 and the middle of the left end of the first evaporation chamber 110 being connected via a second connecting pipe 220;

[0022] A heating component, the heating component includes a first compressor 330 and a plurality of first heating plates 130, the first heating plates 130 are arranged in the first heating chamber 120, the upper end of the first heating plate 130 passes through the first heating chamber 120 and is provided with a first steam inlet, the first steam inlet and the upper end of the first evaporation chamber 110 are connected through a third connecting pipe 230, and the first compressor 330 is arranged on the third connecting pipe 230.

[0023] Furthermore, the heating assembly includes a distilled water tank 310 and a first preheater 320, the first steam inlet is provided with a first steam pipe 131, the lower end of the first heating plate 130 passes through the first heating chamber 120 and is provided with a first condensate pipe 132, the first condensate pipe 132 is connected to one end of the distilled water tank 310, one end of the first preheater 320 is connected to the other end of the distilled water tank 310, and the other end of the first preheater 320 is connected to the first steam pipe 131.

[0024] Furthermore, a first feed pipe 211 is provided at the lower end of the first connecting pipe 210 , a second steam pipe is provided at the left end of the first feed pipe 211 , and the second steam pipe is connected to the first preheater 320 .

[0025] Furthermore, the fully automatic MVR evaporator concentrate discharger includes a drainage component, which includes a first collecting barrel 240, a first hydrometer 260, a first valve 270 and a second valve 280. The lower end of the first connecting pipe 210 is provided with a first discharge pipe 212, the first collecting barrel 240 is arranged below the first discharge pipe 212, one end of the first valve 270 is connected to the first discharge pipe 212, the other end of the first valve 270 is connected to the upper end of the first collecting barrel 240, the second valve 280 is connected to the lower end of the first collecting barrel 240, and the first hydrometer 260 is arranged at the lower end of the first evaporation chamber.

[0026] Furthermore, the drainage assembly includes a first liquid level gauge 250 , and the first liquid level gauge 250 is disposed in the first collecting barrel 240 .

[0027] The evaporation method of the fully automatic MVR evaporator concentrate discharger is:

[0028] Step 1: First, the water in the distilled water tank 310 is used to generate steam under the heating of the first preheater 320, and the steam is first ventilated into the first heating chamber 120 and the first evaporation chamber 110 through the second steam pipe to preheat the first heating chamber 120 and the first evaporation chamber 110. At the same time, steam is passed into the first heating plate 130 through the first steam pipe 131 to increase the temperature of the first heating plate 130;

[0029] Step 2: The first compressor 330 is used to form a negative pressure in the first heating chamber 120 and the first evaporation chamber 110, and the sewage or other concentrated solution to be evaporated is sucked into the evaporator tank. The first heating plate 130 evaporates by contacting with the sewage over a large area. The first heating chamber 120 heats the sewage and generates a large amount of water vapor, which enters the upper end of the first evaporation chamber 110 through the second connecting pipe 220.

[0030] Step three, the first compressor 330 compresses the low-temperature and low-pressure steam at the upper end of the first evaporation chamber 110 into high-temperature and high-pressure steam, and then enters the first heating plate 130 through the first steam inlet, and exchanges heat with the sewage through the first heating plate 130. The steam is condensed and the condensed water is discharged, while the steam continues to heat and evaporate the water in the sewage, repeatedly evaporating and using the steam for secondary evaporation until the sewage is fully concentrated and evaporated.

[0031] It is worth mentioning that the technical features such as the first compressor 330 involved in the patent application of the present invention should be regarded as the prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected according to the conventional selection in the field, and should not be regarded as the inventive point of the patent of the present invention. The patent of the present invention will not be further elaborated.

[0032] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fully automatic MVR evaporator concentrate discharger, characterized in that: include: An evaporator tank body, the evaporator tank body comprising a first heating chamber (120) and a first evaporation chamber (110), the first heating chamber (120) being arranged at the lower left end of the first evaporation chamber, the lower end of the first heating chamber (120) and the lower end of the first evaporation chamber (110) being connected via a first connecting pipe (210), and the upper end of the first heating chamber (120) and the middle of the left end of the first evaporation chamber (110) being connected via a second connecting pipe (220); A heating component, the heating component comprising a first compressor (330) and a plurality of first heating plates (130), the first heating plates (130) being arranged in the first heating chamber (120), the upper end of the first heating plate (130) passing through the first heating chamber (120) being provided with a first steam inlet, the first steam inlet and the upper end of the first evaporation chamber (110) being connected via a third connecting pipe (230), and the first compressor (330) being arranged on the third connecting pipe (230).

2. The fully automatic MVR evaporator concentrate discharger according to claim 1, characterized in that: The heating component includes a distilled water tank (310) and a first preheater (320), the first steam inlet is provided with a first steam pipe (131), the lower end of the first heating plate (130) passes through the first heating chamber (120) and is provided with a first condensate pipe (132), the first condensate pipe (132) is connected to one end of the distilled water tank (310), one end of the first preheater (320) is connected to the other end of the distilled water tank (310), and the other end of the first preheater (320) is connected to the first steam pipe (131).

3. The fully automatic MVR evaporator concentrate discharger according to claim 2, characterized in that: A first feed pipe (211) is provided at the lower end of the first connecting pipe (210), a second steam pipe is provided at the left end of the first feed pipe (211), and the second steam pipe is connected to the first preheater (320).

4. The fully automatic MVR evaporator concentrate discharger according to claim 3, characterized in that: The fully automatic MVR evaporator concentrate discharger comprises a liquid discharge component, which comprises a first collecting barrel (240), a first hydrometer (260), a first valve (270) and a second valve (280); a first discharge pipe (212) is provided at the lower end of the first connecting pipe (210); the first collecting barrel (240) is arranged below the first discharge pipe (212); one end of the first valve (270) is connected to the first discharge pipe (212); the other end of the first valve (270) is connected to the upper end of the first collecting barrel (240); the second valve (280) is connected to the lower end of the first collecting barrel (240); and the first hydrometer (260) is arranged at the lower end of the first evaporation chamber.

5. The fully automatic MVR evaporator concentrate discharger according to claim 4, characterized in that: The liquid discharge assembly comprises a first liquid level meter (250), and the first liquid level meter (250) is arranged in the first collection barrel (240).

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