A two-stage MVR evaporator

Abstract

The utility model relates to the technical field of industrial evaporation and crystallization, and in particular to a two-stage MVR evaporator, which includes: a shell, which is used for guiding the flow of liquid through a guide member, and is used to cooperate with an intake pipe to evaporate the liquid at high temperature through a liquid film member; a feeding component, which is located on the shell, and is used to cooperate with the feeding pipe to add liquid into the shell through a feeding pipe; a collecting component, which is located on the shell, and is used for liquid processing and cleaning; and a bracket, which is located on the shell, and is used to support and reduce vibration of the shell. The utility model is provided with a feeding component on the shell, and the feeding pipe runs through the shell, and the feeding pipe is connected to the storage pipe. Five groups of distribution pipes are arranged on the periphery of the storage pipe, and the five groups of distribution pipes are connected to five groups of main material pipes, which is convenient for increasing the liquid addition method. At the same time, liquid is added at both ends of the main material pipe to improve the liquid addition efficiency, effectively avoid the liquid film in the material pipe from being squeezed apart, and improve the contact efficiency between the liquid film and the inner wall of the main material pipe to improve the use effect of the two-stage MVR evaporator.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial evaporation and crystallization, in particular to a two-stage MVR evaporator. Background Art

[0002] As we all know, MVR is the abbreviation of steam mechanical recompression technology. MVR is an energy-saving technology that reuses the energy of secondary steam generated by itself, thereby reducing the demand for external energy. The working process of MVR evaporator is to compress low-temperature steam through a compressor, increase the temperature and pressure, increase the thermal enthalpy, and then enter the heat exchanger for condensation to make full use of the latent heat of steam.

[0003] According to the patent document with the authorization announcement number: CN218306202U, named "A two-stage MVR evaporator", the new type includes: a limit plate, the top and bottom ends of the shell are respectively connected to the feed pipe and the liquid outlet pipe, a liquid separation mechanism is arranged in the shell, the front end and the right end of the shell are respectively connected to the air inlet pipe and the discharge pipe, there are two limit plates, the two limit plates are fixedly connected in the shell, a plurality of curved material pipes are connected to the limit plate located on the upper side, and the other ends of the plurality of curved material pipes are connected to the limit plate located on the lower side. It is suitable for the field of industrial evaporation and crystallization technology. Compared with the existing technology, the problem that the gas pushes up the liquid film and affects the heating and gasification effect, this design changes the contact surface between the liquid film and the inner wall of the material pipe by changing the shape of the material pipe, so that the generated gas can flow in the material pipe without squeezing the liquid film, and then lead out of the curved material pipe through the outlet branch pipe and the outlet main pipe. This design is relatively simple to use and has high practicality.

[0004] In the use of the existing two-stage MVR evaporator, the feed liquid is added into the shell through the feed pipe, and the feed liquid is evenly flowed into the feed pipe by the liquid separation mechanism. However, the feed liquid is only added from the top, resulting in a single adding method, reducing the feed liquid adding efficiency, reducing the efficiency of the feed liquid evaporating into a liquid film, causing the liquid film in the feed pipe to be squeezed apart, reducing the contact efficiency between the liquid film and the inner wall of the main feed pipe, and reducing the use effect of the two-stage MVR evaporator. Utility Model Content

[0005] In view of the problems existing in the background technology, a two-stage MVR evaporator is proposed.

[0006] The utility model proposes a two-stage MVR evaporator, comprising:

[0007] The shell is used for guiding the flow of the liquid through the guide piece, and is used for cooperating with the air inlet pipe to evaporate the liquid at high temperature through the liquid membrane piece;

[0008] A feeding assembly is located on the shell and is used to add liquid from the feeding pipe into the shell through the feeding pipe;

[0009] A collection assembly, located on the shell, for liquid processing and cleaning;

[0010] and a bracket, which is located on the shell and is used for supporting and reducing vibration of the shell.

[0011] Preferably, the guide member comprises a material guide cover located on the housing, and the material guide cover is provided with a central hole for air outlet cooperation;

[0012] The material guide cover is provided with a partition plate, the partition plate is provided with a through hole, the partition plate is provided with a baffle plate, and the material liquid is guided into the through hole through the material guide cover.

[0013] Preferably, the liquid membrane element comprises a main material pipe located inside the shell, the main material pipe and the through hole are opposite to each other, and the material liquid is added into the main material pipe;

[0014] The liquid membrane element also includes an air outlet pipe located inside the shell, the air inlet end of the air outlet pipe is connected to the main material pipe, and the air outlet end is connected to the air outlet main pipe;

[0015] The gas outlet main pipe is connected to the collecting assembly through a connecting pipe.

[0016] Preferably, the feeding assembly includes a feeding pipe located on the shell, the feeding pipe is provided with a storage pipe, a diversion pipe is provided on the periphery of the storage pipe, and the diversion pipe is connected to the main material pipe for cooperating with the feeding pipe to add material liquid.

[0017] Preferably, the collecting assembly includes a collecting box located on the shell, the collecting box is provided with a mesh plate, the mesh plate is provided with a condenser, and the liquid is reliquefied into water through the condenser. The collecting box is provided with a waste liquid pipe, which is connected to the switch valve for cleaning.

[0018] Preferably, a liquid outlet pipe is provided at the lower end of the shell for discharging waste water from the shell.

[0019] Preferably, the bracket is provided with a base, the base is provided with a shock absorber, the shock absorber is provided with a mounting cover, and the shock absorber and the shell are connected via the mounting cover for vibration reduction and noise reduction.

[0020] Compared with the prior art, the utility model has the following beneficial technical effects:

[0021] The utility model arranges a feeding component on the shell, a feeding pipe runs through the shell, the feeding pipe is connected to the storage pipe, five groups of distribution pipes are arranged on the periphery of the storage pipe, and the five groups of distribution pipes are connected to the five groups of main material pipes, which is convenient for increasing the feeding method of liquid feed, and at the same time, liquid feed is added at both ends of the main material pipe, which improves the feeding efficiency of liquid feed, effectively avoids the liquid film in the material pipe from being squeezed apart, improves the contact efficiency between the liquid film and the inner wall of the main material pipe, and is convenient for increasing the internal use space of the shell of the two-stage MVR evaporator, thereby improving the use effect of the two-stage MVR evaporator. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the material guide cover in the utility model;

[0024] Figure 3 This is a schematic diagram of the internal structure of the housing in the utility model;

[0025] Figure 4 It is a schematic diagram of the structure of the collection component in the utility model.

[0026] Figure markings: 1. Shell; 101. Material guide cover; 102. Center hole; 103. Partition; 104. Through hole; 105. Baffle; 106. Main material pipe; 107. Air outlet pipe; 108. Air outlet main pipe; 109. Connecting pipe; 2. Feed pipe; 3. Feeding assembly; 301. Feeding pipe; 302. Storage pipe; 303. Diverter pipe; 4. Air inlet pipe; 5. Installation pipe; 6. Transfer pipe; 7. Collection assembly; 701. Collection box; 702. Mesh plate; 703. Condenser; 704. Waste liquid pipe; 8. Liquid outlet pipe; 9. Bracket; 901. Base; 902. Shock absorber; 903. Installation cover. DETAILED DESCRIPTION

[0027] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0028] Embodiment 1

[0029] like Figure 1-3 As shown, the utility model proposes a two-stage MVR evaporator, including: a shell 1, which is used for guiding the flow of feed liquid through a guide member, and is used to cooperate with an air inlet pipe 4 to evaporate the feed liquid at high temperature through a liquid film member; a feeding component 3, which is located on the shell 1 and is used to cooperate with a feed pipe 2 to add feed liquid into the shell 1 through a feeding pipe 301; a collecting component 7, which is located on the shell 1 and is used for processing and cleaning the feed liquid; and a bracket 9, which is located on the shell 1 and is used to support and reduce vibration of the shell 1.

[0030] Further description, the guide member includes a material guide cover 101 located on the shell 1, and the material guide cover 101 is provided with a central hole 102 for air outlet coordination; the material guide cover 101 is provided with a partition 103, and the partition 103 is provided with a through hole 104, and the partition 103 is provided with a baffle 105, and the material liquid is guided into the through hole 104 through the material guide cover 101. A material guide cover 101 is arranged in the shell 1, and the material guide cover 101 guides the feed liquid to the partition 103. The partition 103 is provided with a through hole 104, and the through hole 104 is opposite to the main material pipe 106, so that the feed liquid can be added to the main material pipe 106. At the same time, a baffle 105 is arranged on the partition 103, and the baffle 105 is used in conjunction with the material guide cover 101 to facilitate the feed liquid to be guided to the through hole 104, so that the feed liquid can be added to the main material pipe 106 for use. At the same time, two groups of baffles 103 are arranged in the shell 1 for use, and the upper baffle 103 is provided with a guide piece, and the lower baffle 103 is arranged in the shell 1 through the lower end of the main material pipe 106. There is a certain distance between the lower baffle 103 and the shell 1, which is convenient for the discharge of the feed liquid with a lower concentration.

[0031] Further explanation, the liquid film element includes a main material pipe 106 located inside the shell 1, the main material pipe 106 and the through hole 104 are opposite, and the material liquid is added into the main material pipe 106; the liquid film element also includes an outlet pipe 107 located inside the shell 1, the air inlet end of the outlet pipe 107 is connected to the main material pipe 106, and the air outlet end is connected to the outlet main pipe 108; the outlet main pipe 108 is connected to the collection component 7 through the connecting pipe 109. The main material pipe 106 is connected to the outlet main pipe 108 through the outlet pipe 107, and after the material liquid is heated, the water vapor is transported to the collection component 7 through the outlet pipe 107 and the outlet main pipe 108, and the collection component 7 is used to process and clean it.

[0032] Further explanation, the feeding assembly 3 includes a feeding pipe 301 located on the shell 1, the feeding pipe 301 is provided with a storage pipe 302, and a shunt pipe 303 is provided on the periphery of the storage pipe 302, and the shunt pipe 303 is connected to the main material pipe 106, and is used to cooperate with the feeding pipe 2 to add liquid. The feeding pipe 301 is arranged on the shell 1, and the feeding pipe 301 is connected to the storage pipe 302, and the storage pipe 302 is connected to the main material pipe 106 through the shunt pipe 303, which is convenient for adding liquid from the lower end of the main material pipe 106, and is convenient for improving the efficiency of adding liquid, effectively avoiding the squeezing of the liquid film in the material pipe, and improving the contact efficiency between the liquid film and the inner wall of the main material pipe.

[0033] Embodiment 2

[0034] like Figure 1 - Figure 4 As shown, the utility model proposes a two-stage MVR evaporator. Based on the above embodiment, this embodiment also records in detail the specific components and matching methods.

[0035] Further explanation, the collection assembly 7 includes a collection box 701 located on the shell 1, the collection box 701 is provided with a mesh plate 702, the mesh plate 702 is provided with a condenser 703, and the condenser 703 is used to re-liquefy the liquid into water. The collection box 701 is provided with a waste liquid pipe 704, and the waste liquid pipe 704 is connected to the switch valve for cleaning. The collection box 701 is connected to the gas outlet main pipe 108 through a connecting pipe 109. The condenser 703 is set in the collection box 701. The condenser 703 is opened to liquefy the material into water, and then the material with a lower concentration falls to the bottom of the shell 1 and is discharged through the liquid outlet pipe 8. The material with a higher concentration is connected by the installation pipe 5 and the transfer pipe 6. The transfer pipe 6 connects another shell 1 for matching use, so that the high-temperature steam of the shell 1 is higher than that of the steam entering the shell 1, so as to achieve the treatment of the material with a high concentration.

[0036] Further explanation, a liquid outlet pipe 8 is provided at the lower end of the shell 1 for discharging wastewater from the shell 1. The liquid outlet pipe 8 is provided at the lower end of the shell 1, so that the feed liquid with lower concentration can be discharged from the shell 1, and the two-stage MVR evaporator can be used conveniently.

[0037] It is further explained that the bracket 9 is provided with a base 901, the base 901 is provided with a vibration damper 902, the vibration damper 902 is provided with a mounting cover 903, and the vibration damper 902 is connected to the shell 1 through the mounting cover 903 for vibration reduction and noise reduction. The bracket is arranged on the shell 1, the bracket 9 is used with the base 901, the base 901 is connected with the vibration damper 902 and the mounting cover 903, and the mounting cover 903 is connected to the outer periphery of the shell 1, so as to play a vibration reduction role and further improve the use of the two-stage MVR evaporator.

[0038] The working principle of the utility model is as follows: first, feed liquid is added into the shell 1 through the feed pipe 2, and the shell 1 passes through the partition 103, and the partition 103 is provided with a through hole 104, and the through hole 104 is opposite to the opening of the main material pipe 106, so that the feed liquid is added into the main material pipe 106, and at the same time, the lower end of the main material pipe 106 is connected to the shunt pipe 303, the shunt pipe 303 is connected to the storage pipe 302, and the storage pipe 302 is connected to the feed pipe 301, and the feed pipe 301 runs through the outside of the shell 1, and the feed pipe 301 adds part of the feed liquid into the storage pipe 302 through the feed valve, and uses the shunt pipe 303 to distribute the feed liquid into the main material pipe 106, so that the feed liquid is added and used from the lower part of the upper end of the main material pipe 106, and then the high-temperature steam is introduced into the shell 1 through the air inlet pipe 4, and the high-temperature steam is introduced into the upper and lower ends of the partitions 103, and the main material pipe 10 6 is heated, the liquid film is heated through the main material pipe 106, the water in the material liquid is heated and gasified into water vapor, and is connected to the gas outlet main pipe 108 through the gas outlet pipe 107, and the gas outlet main pipe 108 is connected to the inside of the collecting box 701 through the connecting pipe 109, and the condenser 703 is opened to make it liquefied into water, pass through the mesh plate 702, and a part of the material liquid with lower concentration will appear in liquid form and fall to the bottom of the shell 1, and be discharged through the liquid outlet pipe 8. The material liquid with higher concentration is connected to the transfer pipe 6 by using the installation pipe 5, and the transfer pipe 6 transfers the material liquid with higher concentration in gaseous state to the feed pipe 2 at the upper end of the other shell 1. The evaporation process of the shell 1 of the two-stage MVR evaporator is basically the same as the above, except that the high-temperature steam introduced is higher than that introduced into the shell 1. When the processing is completed, it is connected to the switch valve through the waste liquid pipe 704 and opened to clean it.

[0039] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A two-stage MVR evaporator, characterized in that: include: The housing (1) is used for guiding the flow of the feed liquid through the guide member, and is used for cooperating with the air inlet pipe (4) to evaporate the feed liquid at high temperature through the liquid membrane member; A feeding assembly (3) is located on the housing (1) and is used to cooperate with the feeding pipe (2) to add liquid into the housing (1) through the feeding pipe (301); A collecting assembly (7), located on the housing (1), for processing and cleaning the liquid; And a bracket (9) is located on the shell (1) and is used to support and reduce vibration of the shell (1).

2. A two-stage MVR evaporator according to claim 1, characterized in that: The guide member comprises a material guide cover (101) located on the housing (1), and the material guide cover (101) is provided with a central hole (102) for air outlet coordination; The material guide cover (101) is provided with a partition (103), the partition (103) is provided with a through hole (104), and the partition (103) is provided with a baffle (105), and the material liquid is guided into the through hole (104) through the material guide cover (101).

3. A two-stage MVR evaporator according to claim 2, characterized in that: The liquid membrane element comprises a main material pipe (106) located inside the shell (1), the main material pipe (106) and the through hole (104) are opposite to each other, and are used for adding liquid into the main material pipe (106); The liquid membrane element also includes an air outlet pipe (107) located inside the shell (1), wherein the air inlet end of the air outlet pipe (107) is connected to the main material pipe (106), and the air outlet end is connected to the air outlet main pipe (108); The gas outlet main pipe (108) is connected to the collecting assembly (7) via a connecting pipe (109).

4. A two-stage MVR evaporator according to claim 3, characterized in that: The feeding assembly (3) comprises a feeding pipe (301) located on the shell (1), the feeding pipe (301) is provided with a storage pipe (302), a shunt pipe (303) is provided on the periphery of the storage pipe (302), and the shunt pipe (303) is connected to the main material pipe (106) for cooperating with the feeding pipe (2) to add liquid.

5. A two-stage MVR evaporator according to claim 4, characterized in that: The collecting assembly (7) comprises a collecting box (701) located on the housing (1); the collecting box (701) is provided with a mesh plate (702); the mesh plate (702) is provided with a condenser (703); the liquid is reliquefied into water through the condenser (703); the collecting box (701) is provided with a waste liquid pipe (704); the waste liquid pipe (704) is connected to a switch valve for cleaning.

6. A two-stage MVR evaporator according to claim 5, characterized in that: A liquid outlet pipe (8) is provided at the lower end of the shell (1) for discharging waste water from the shell (1).

7. A two-stage MVR evaporator according to claim 6, characterized in that: The bracket (9) is provided with a base (901), the base (901) is provided with a vibration damper (902), the vibration damper (902) is provided with a mounting cover (903), and the vibration damper (902) and the housing (1) are connected via the mounting cover (903) for vibration reduction and noise reduction.

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