MVR (Mechanical Vapor Recompression) concentration and evaporation device with pretreatment function

Abstract

The utility model discloses an MVR (Mechanical Vapor Recompression) concentration and evaporation device with a pretreatment function, which belongs to the technical field of evaporation and concentration equipment and comprises a preheating tank and a concentration and evaporation kettle, a front gas guide groove is arranged in the preheating tank, a rear gas guide groove is arranged in the preheating tank, and a plurality of heat exchange copper pipes are fixedly sleeved in an inner cavity of the preheating tank. According to the device, steam in the concentration and evaporation kettle is guided into the front gas guide groove in the side part of the preheating tank through the gas guide pipe, gas in the front gas guide groove enters the rear gas guide groove from the heat exchange copper pipe, and the steam in the inner cavities of the front gas guide groove and the rear gas guide groove is used for carrying out heat exchange on sewage on the side part of the inner cavity of the preheating tank; meanwhile, heat of flowing steam in the heat exchange copper pipe is used for heating sewage in the middle of the inner cavity of the preheating tank, the function of pretreating the sewage in the preheating tank is achieved, and meanwhile the uniformity of sewage pretreatment heating is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to evaporative concentration equipment technical field more specifically, relate to a kind of MVR concentration evaporator with pretreatment function. BACKGROUND

[0002] MVR evaporator is mechanical vapor recompression evaporator, it is a kind of efficient, energy-saving evaporation equipment, MVR evaporator uses high energy efficiency vapor compressor to compress the secondary steam generated by evaporation system, improve the enthalpy of secondary steam, then the secondary steam with improved enthalpy is sent into steam system as heat source and recycled, replacing most live steam. In this process, the temperature of the thin secondary steam will rise after volume compression, which realizes the transformation of low-temperature, low-pressure steam into high-temperature, high-pressure steam, and then it can be used as a heat source to heat the original liquid that needs to be evaporated again, achieving the purpose of recycling steam.

[0003] After searching, the utility model patent with publication number CN216377809U discloses a kind of concentration evaporator with pretreatment function, including preheating tank and concentration evaporator, preheating tank bottom is equipped with liquid outlet, concentration evaporator top is equipped with second liquid inlet, liquid outlet is connected with second liquid inlet by pump, preheating tank is equipped with filter screen, concentration evaporator top end is equipped with gas outlet, preheating tank includes inner tank body and outer tank body, gap is clamped between inner tank body and outer tank body, spiral-shaped baffle is arranged in gap, gas outlet is communicated with the bottom of gap by gas pipe;The concentration evaporator preliminarily removes impurities from wastewater through the filter screen in the preheating tank, avoids plugging the discharge port, and discharges the hot gas in the concentration evaporator into the gap of the preheating tank, which can heat the wastewater in the preheating tank. On the one hand, the hot gas in the concentration evaporator is utilized twice, and on the other hand, the preheated wastewater is quickly and efficiently concentrated and evaporated in the concentration evaporator, improving efficiency and saving energy.

[0004] However, the above-mentioned patent still has the following disadvantages: when using hot gas to preheat wastewater, the water in contact with the inner tank body will be heated first, and the water far from the inner wall of the inner tank body may not be heated, affecting the uniformity and quality of preheating. In addition, although the filter screen can filter wastewater, the person needs to clean the dirt filtered on the filter screen, which is not convenient. Therefore, we propose a kind of MVR concentration evaporator with pretreatment function. UTILITY MODEL CONTENTS

[0005] In view of the problems in the prior art, the purpose of the utility model is to provide a kind of MVR concentration evaporator with pretreatment function.

[0006] To solve the above problems, the utility model adopts the following technical solutions:

[0007] The utility model provides a kind of MVR concentration evaporation device with pre-treatment function, including preheating tank and concentration evaporation kettle, the inside of the preheating tank is provided with front guide air groove, the inside of the preheating tank is provided with rear guide air groove, the inner chamber of the preheating tank is fixedly sleeved with multiple heat exchange copper pipes, the two ends of multiple heat exchange copper pipes are connected with the inner chamber of front guide air groove, rear guide air groove respectively, the top of the concentration evaporation kettle is fixedly sleeved with guide pipe, the end of guide pipe is fixedly sleeved to the inner chamber of front guide air groove, the bottom of the preheating tank is fixedly sleeved with liquid guide pipe, one end of liquid guide pipe extends to the inner chamber of preheating tank, the other end of liquid guide pipe is fixedly sleeved to the inner chamber of concentration evaporation kettle, the middle part of liquid guide pipe is provided with liquid pump, the top of the preheating tank is provided with filter mechanism, the bottom of the preheating tank is fixedly sleeved with drain pipe, the top end of drain pipe is fixedly sleeved to the inner chamber of rear guide air groove.

[0008] As a preferred scheme of the utility model, the filter mechanism includes two mounting seats fixedly connected to the side surface of the preheating tank, the bottom surface of each of the two mounting seats is fixedly installed with an electric push rod, the output end of each of the two electric push rods is fixedly connected with a connecting seat, the two connecting seats are fixedly connected with a tank cover, the bottom surface of the tank cover is attached to the top surface of the preheating tank, the bottom surface of the tank cover is fixedly connected with a plurality of connecting rods, the bottom end of each of the plurality of connecting rods extends into the inner chamber of the preheating tank and is fixedly connected with a first filter screen, the side portion of the first filter screen is provided with a mounting groove, the inner chamber of the mounting groove is sleeved with a collection box, the bottom portion of the inner chamber of the collection box is fixedly sleeved with a second filter screen, the top surface of the tank cover is fixedly installed with a servo motor, the output shaft of the servo motor extends to the bottom portion of the tank cover and is fixedly connected with a scraper, the bottom surface of the scraper is attached to the top surface of the first filter screen.

[0009] As a preferred scheme of the utility model, the inner wall of the mounting groove is provided with a clamping groove, the side surface of the collection box is fixedly connected with a clamping block, the end portion of the clamping block is movably sleeved into the inner chamber of the clamping groove.

[0010] As a preferred scheme of the utility model, the top portion of the tank cover is fixedly sleeved with a liquid inlet pipe, the bottom end of the liquid inlet pipe extends into the inner chamber of the preheating tank through the tank cover.

[0011] As a preferred scheme of the utility model, the side surface of the first filter screen is attached to the inner wall of the preheating tank.

[0012] As a preferred scheme of the utility model, the top surface of the collection box is attached to the top surface of the first filter screen, and the side surface of the collection box is attached to the inner wall of the mounting groove.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1) The utility model discloses a preheating tank, a concentrated evaporation kettle, a front gas guide groove, a rear gas guide groove, a heat exchange copper pipe, a gas guide pipe, a liquid guide pipe, a liquid pumping pump, a mounting seat, an electric push rod, a filtering mechanism, a tank cover, a connecting seat, a connecting rod, a first filter screen, a mounting groove, a collecting box, a second filter screen, a servo motor and a scraper are arranged in the preheating tank.

[0015] (2) The utility model discloses a first filter screen is filtered to the dirt in the sewage, in addition utilizes servo motor to drive scraper rotation, and the dirt on the top surface of first filter screen is scraped through the scraper, and the dirt is moved to collect the collection box and is collected, realizes the function that the dirt on first filter screen is automatically cleaned, guarantees the filtering quality of first filter screen, and subsequently can extract the collection box from first filter screen and cleans the dirt of collection, and the practicality is good. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is whole structure schematic diagram of the utility model;

[0017] Figure 2 It is sectional view schematic diagram of the utility model preheating tank;

[0018] Figure 3 It is inside schematic diagram of the utility model front gas guide groove;

[0019] Figure 4 It is mounting schematic diagram of the utility model collecting box;

[0020] Figure 5 It is structure schematic diagram of the utility model collecting box.

[0021] Mark explanation in drawing:

[0022] 1, preheating tank;2, concentrated evaporation kettle;3, front gas guide groove;4, rear gas guide groove;5, heat exchange copper pipe;6, gas guide pipe;7, liquid guide pipe;8, liquid pumping pump;9, mounting seat;10, electric push rod;11, filtering mechanism;12, tank cover;13, connecting seat;14, connecting rod;15, first filter screen;16, mounting groove;17, collecting box;18, second filter screen;19, servo motor;20, scraper;21, liquid inlet pipe;22, clamping groove;23, clamping block;24, drain pipe. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments, and all the other embodiments obtained by those skilled in the art without creative efforts on the basis of the embodiments of the present application shall fall within the scope of the present application.

[0024] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] Embodiment:

[0027] Please refer to Figures 1-5 A MVR concentration and evaporation device with pre-treatment function, comprising a preheating tank 1 and a concentration and evaporation kettle 2, a front air guide groove 3 is arranged in the inside of the preheating tank 1, a rear air guide groove 4 is arranged in the inside of the preheating tank 1, a plurality of heat exchange copper pipes 5 are fixedly sleeved in the inner cavity of the preheating tank 1, the two ends of the plurality of heat exchange copper pipes 5 are respectively connected with the inner cavities of the front air guide groove 3 and the rear air guide groove 4, a gas guide pipe 6 is fixedly sleeved at the top of the concentration and evaporation kettle 2, the end of the gas guide pipe 6 is fixedly sleeved to the inner cavity of the front air guide groove 3, a liquid guide pipe 7 is fixedly sleeved at the bottom of the preheating tank 1, one end of the liquid guide pipe 7 extends to the inner cavity of the preheating tank 1, the other end of the liquid guide pipe 7 is fixedly sleeved to the inner cavity of the concentration and evaporation kettle 2, a liquid pump 8 is arranged in the middle of the liquid guide pipe 7, a filtering mechanism 11 is arranged at the top of the preheating tank 1, a drain pipe 24 is fixedly sleeved at the bottom of the preheating tank 1, and the top end of the drain pipe 24 is fixedly sleeved to the inner cavity of the rear air guide groove 4.

[0028] Specifically, please refer to Figures 1 to 5The filtering mechanism 11 comprises two mounting seats 9 fixedly connected to the side of the preheating tank 1, the bottoms of the two mounting seats 9 are respectively fixedly provided with electric push rods 10, the output ends of the two electric push rods 10 are fixedly connected with connecting seats 13, the connecting seats 13 are fixedly connected with a tank cover 12, the bottom surface of the tank cover 12 is attached to the top surface of the preheating tank 1, the bottom surface of the tank cover 12 is fixedly connected with a plurality of connecting rods 14, the bottom ends of the connecting rods 14 extend into the inner cavity of the preheating tank 1 and are fixedly connected with a first filter screen 15, the side of the first filter screen 15 is provided with a mounting groove 16, the inner cavity of the mounting groove 16 is sleeved with a collecting box 17, the bottom of the inner cavity of the collecting box 17 is fixedly sleeved with a second filter screen 18, the top surface of the tank cover 12 is fixedly provided with a servo motor 19, the output shaft of the servo motor 19 extends to the bottom of the tank cover 12 and is fixedly connected with a scraper 20, the bottom surface of the scraper 20 is attached to the top surface of the first filter screen 15.

[0029] Specifically, please refer to Figure 4 The inner wall of the mounting groove 16 is provided with a clamping groove 22, the side of the collecting box 17 is fixedly connected with a clamping block 23, and the end of the clamping block 23 is movably sleeved into the inner cavity of the clamping groove 22.

[0030] In this embodiment, the collecting box 17 is installed in the mounting groove 16 through the cooperation of the clamping block 23 and the clamping groove 22.

[0031] Specifically, please refer to Figure 2 The top of the tank cover 12 is fixedly sleeved with a liquid inlet pipe 21, and the bottom end of the liquid inlet pipe 21 extends into the inner cavity of the preheating tank 1 through the tank cover 12.

[0032] In this embodiment, the sewage is introduced into the inner cavity of the preheating tank 1 through the liquid inlet pipe 21 for pretreatment.

[0033] Specifically, please refer to Figure 2 The side of the first filter screen 15 is attached to the inner wall of the preheating tank 1.

[0034] In this embodiment, it is ensured that the first filter screen 15 can completely filter the sewage, so that the sewage is prevented from falling from the side of the first filter screen 15.

[0035] Specifically, please refer to Figure 2 and Figure 4 The top surface of the collecting box 17 is attached to the top surface of the first filter screen 15, and the side of the collecting box 17 is attached to the inner wall of the mounting groove 16.

[0036] In this embodiment, it is ensured that the waste filtered from the top surface of the first filter screen 15 can smoothly enter the collecting box 17, and the stability of the collecting box 17 clamped in the inner cavity of the mounting groove 16 is ensured.

[0037] Working principle: in use, first through the liquid inlet pipe 21 into the sewage to the preheating tank 1 inner chamber, using the first filter screen 15 on the sewage in the dirt is filtered, filtered sewage drop to the preheating tank 1 inner chamber, start servo motor 19 drive scraper 20 rotation, through the rotation of the scraper 20 into the collection box 17 on the first filter screen 15 filter down the dirt scraped, thereby collecting dirt, in addition, the water stains in the dirt permeate the second filter screen 18 down, then start the liquid pump 8 from the liquid inlet pipe 7 into the preheating tank 1 sewage from the condenser evaporator 2, using the condenser evaporator 2 on the sewage is evaporated and concentrated, finally evaporated gas from the gas guide pipe 6 into the preheating tank 1 side of the front gas guide groove 3, while the gas in the front gas guide groove 3 from the heat exchange copper pipe 5 into the rear gas guide groove 4, using the steam in the front gas guide groove 3 and rear gas guide groove 4 inner chamber of the preheating tank 1 inner chamber side of the sewage heat exchange, while using the heat exchange copper pipe 5 in the flow of steam heat to the preheating tank 1 inner chamber middle sewage heating, realize the function of preheating tank 1 in the sewage pretreatment, ensure the efficiency of subsequent in the condenser evaporator 2 on the sewage treatment, namely.

[0038] The above, only for the preferred specific embodiments of the present application, but the scope of the present application is not limited to this, any skilled in the art of the technical personnel in the present application disclosed in the technical range, according to the technical scheme of the present application and its improvement concept to equivalent replacement or change, should be covered in the scope of the present application.

Claims

1. A MVR concentration evaporation device with pre-treatment function, comprising a preheating tank (1) and a concentration evaporation kettle (2), characterized in that: The inside of the preheating tank (1) is provided with a front air guide groove (3), the inside of the preheating tank (1) is provided with a rear air guide groove (4), the inner cavity of the preheating tank (1) is fixedly sleeved with a plurality of heat exchange copper pipes (5), the two ends of the plurality of heat exchange copper pipes (5) are respectively connected with the inner cavities of the front air guide groove (3) and the rear air guide groove (4), the top of the concentration evaporation kettle (2) is fixedly sleeved with an air guide pipe (6), the end of the air guide pipe (6) is fixedly sleeved to the inner cavity of the front air guide groove (3), the bottom of the preheating tank (1) is fixedly sleeved with a liquid guide pipe (7), one end of the liquid guide pipe (7) extends to the inner cavity of the preheating tank (1), the other end of the liquid guide pipe (7) is fixedly sleeved to the inner cavity of the concentration evaporation kettle (2), the middle part of the liquid guide pipe (7) is provided with a liquid pump (8), the top of the preheating tank (1) is provided with a filtering mechanism (11), the bottom of the preheating tank (1) is fixedly sleeved with a drain pipe (24), the top end of the drain pipe (24) is fixedly sleeved to the inner cavity of the rear air guide groove (4); The filtering mechanism (11) comprises two mounting seats (9) fixedly connected to the side surface of the preheating tank (1), the bottom surface of each of the two mounting seats (9) is fixedly provided with an electric push rod (10), the output end of each of the two electric push rods (10) is fixedly connected with a connecting seat (13), the two connecting seats (13) are fixedly connected with a tank cover (12), the bottom surface of the tank cover (12) is attached to the top surface of the preheating tank (1), the bottom surface of the tank cover (12) is fixedly connected with a plurality of connecting rods (14), the bottom end of each of the plurality of connecting rods (14) extends to the inner cavity of the preheating tank (1) and is fixedly connected with a first filter screen (15), the side part of the first filter screen (15) is provided with a mounting groove (16), the inner cavity of the mounting groove (16) is sleeved with a collecting box (17), the bottom of the inner cavity of the collecting box (17) is fixedly sleeved with a second filter screen (18), the top surface of the tank cover (12) is fixedly provided with a servo motor (19), the output shaft of the servo motor (19) extends to the bottom of the tank cover (12) and is fixedly connected with a scraper (20), the bottom surface of the scraper (20) is attached to the top surface of the first filter screen (15).

2. The MVR concentration and evaporation device with pre-treatment function according to claim 1, characterized in that: The inner wall of the mounting groove (16) is provided with a clamping groove (22), the side surface of the collecting box (17) is fixedly connected with a clamping block (23), the end part of the clamping block (23) is movably sleeved to the inner cavity of the clamping groove (22).

3. The MVR concentration and evaporation device with pre-treatment function according to claim 1, characterized in that: The top of the tank cover (12) is fixedly sleeved with a liquid inlet pipe (21), the bottom end of the liquid inlet pipe (21) extends to the inner cavity of the preheating tank (1) through the tank cover (12).

4. The MVR concentration and evaporation device with pre-treatment function according to claim 1, characterized in that: The side surface of the first filter screen (15) is attached to the inner wall of the preheating tank (1).

5. The MVR concentration and evaporation device with pre-treatment function according to claim 1, characterized in that: The top surface of the collecting box (17) is attached to the top surface of the first filter screen (15), and the side surface of the collecting box (17) is attached to the inner wall of the mounting groove (16).

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