Multi-effect evaporation unit for evaporation and concentration

Abstract

This utility model discloses a multi-effect evaporation unit for evaporation and concentration, relating to the field of brine treatment technology. The multi-effect evaporation unit includes a support base, a heat preservation mechanism, and a feeding mechanism. The heat preservation mechanism is located on top of the support base and includes a first tank and a second tank. Two sets of first tanks are fixedly mounted on the top of the support base via support rods. The tops of the first tanks are respectively fixedly connected to the outer walls of a set of second tanks, and the bottoms of the second tanks extend into the interior of the first tanks. The feeding mechanism is located above the support base and includes an L-shaped pipe and a nozzle. By stacking the first and second tanks to form a double-layer structure, and then evacuating the cavity between them, the heat preservation performance of the device is improved, heat loss during concentration is reduced, energy consumption during operation is lowered, and the usability and practicality of the device are enhanced.

Description

Technical Field

[0001] This utility model relates to the field of brine treatment technology, and in particular to a multi-effect evaporation unit for evaporation and concentration treatment. Background Technology

[0002] Chinese patent document CN213760529U discloses a multi-effect evaporation device for high-concentration brine treatment, including a first-effect tank, a second-effect tank, and a third-effect tank. Each of the first, second, and third-effect tanks is fixedly equipped with a feed seat. A lower tank body is threaded to the lower end of each of the first, second, and third-effect tanks. A steam outlet seat is fixedly installed on each of the first, second, and third-effect tanks. A circulating heat-conducting pipe is fitted onto each of the second and third-effect tanks. A steam outlet pipe is connected to one of the circulating heat-conducting pipes on the first-effect tank via a connecting sleeve. A condenser pipe connects the steam outlet seats on the second and third-effect tanks. The advantages are: this invention allows the servo motor to simultaneously separate the first, second, and third-effect tanks from their corresponding lower tank bodies, facilitating the removal of crystallized salt. This operation requires less labor and is relatively simple, thus improving work efficiency to a certain extent.

[0003] When the above-mentioned multi-effect evaporation device is in use, it can only rely on the material of the tank itself for heat preservation, which has a poor heat preservation effect. During the concentration process, a lot of heat will be lost through heat transfer through the tank, which increases the energy consumption of the device and reduces its availability and practicality. Utility Model Content

[0004] The purpose of this invention is to provide a multi-effect evaporation unit for evaporation and concentration, which can solve the problems of the above-mentioned multi-effect evaporation devices, which can only rely on the material of the tank itself for heat preservation, resulting in poor heat preservation effect. During the concentration process, a lot of heat is lost through heat transfer through the tank, which increases the energy consumption of the device and reduces its usability and practicality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-effect evaporation unit for evaporation and concentration, comprising a support base, a heat preservation mechanism, and a feeding mechanism. The heat preservation mechanism is located on top of the support base and includes a first tank and a second tank. Two sets of first tanks are fixedly installed on the top of the support base via support rods. The tops of the first tanks are respectively fixedly connected to the outer walls of a set of second tanks, and the bottoms of the second tanks extend into the interior of the first tanks. The feeding mechanism is located above the support base and includes an L-shaped tube and a nozzle. A set of L-shaped tubes is rotatably installed on the tops of the two sets of second tanks, and one end of the L-shaped tube extends into the interior of the second tank and is fixedly installed with a nozzle.

[0006] Preferably, the heat preservation mechanism further includes a vacuum pump, a suction pipe, and a one-way valve. The vacuum pump is fixedly installed on the outer wall of the first tank. The input end of the vacuum pump is fixedly connected to one end of the suction pipe, and the other end of the suction pipe is fixedly connected to and communicates with the outer wall of the first tank. A one-way valve is provided on the suction pipe. The first tank and the second tank are stacked to form a double-layer structure. Then, the cavity formed between the two is evacuated to improve the heat preservation performance of the device, reduce heat loss during the concentration process, reduce the energy consumption of the device operation, and improve the availability and practicality of the device.

[0007] Preferably, the feeding mechanism further includes a servo motor, a main bevel gear, a secondary bevel gear, and a rotary joint. The secondary bevel gear is fixedly installed on the outer wall of the L-shaped tube, and the servo motor is fixedly installed on the top of the second tank. The main bevel gear is fixedly installed on the output shaft of the servo motor. The main bevel gear and the secondary bevel gear mesh with each other. A rotary joint is rotatably installed at the other end of the L-shaped tube. Salt water is sprayed onto the spiral heat-conducting tube through a nozzle, so that the salt water is in uniform contact with the surface of the spiral heat-conducting tube, and the heat conducted by the spiral heat-conducting tube is fully absorbed, which greatly improves the heating efficiency of the salt water.

[0008] Preferably, each of the two sets of second tanks is provided with a set of spiral heat-conducting pipes inside. Each set of spiral heat-conducting pipes has a steam inlet pipe and a first steam outlet pipe fixedly installed at both ends. One end of the steam inlet pipe and the first steam outlet pipe extends to the outside of the first tank.

[0009] Preferably, a steam pipe is fixedly installed on the top of the first set of second tanks, one end of which extends into the interior of the second set of tanks and is fixedly connected to one end of another set of spiral heat pipes. A second exhaust pipe is fixedly installed on the other end of the other set of spiral heat pipes, and one end of the second exhaust pipe extends to the outside of the first tank.

[0010] Preferably, a set of discharge pipes is fixedly installed at the bottom of each of the two sets of second tanks, one end of the discharge pipe passes through the bottom of the first tank, and a valve is provided on the discharge pipe.

[0011] Compared with the prior art, the beneficial effects of this utility model are: (1) The multi-effect evaporation unit for evaporation and concentration uses a combination of a first tank, a second tank, a vacuum pump, a suction pipe and a one-way valve. The first tank and the second tank are stacked to form a double-layer structure. Then, the cavity formed between the two is evacuated to improve the heat preservation performance of the device, reduce the heat loss during the concentration process, reduce the energy consumption of the device operation, and improve the availability and practicality of the device.

[0012] (2) The multi-effect evaporation unit of this evaporation and concentration process uses a servo motor, main bevel gear, L-shaped tube, secondary bevel gear, rotary joint and nozzle to spray brine onto the spiral heat-conducting tube through the nozzle rotation, so that the brine is in uniform contact with the surface of the spiral heat-conducting tube, and the heat output by the spiral heat-conducting tube is fully absorbed, which greatly improves the heating efficiency of the brine. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a perspective view of the present utility model; Figure 2 This is a three-dimensional structural diagram of the first tank body of this utility model; Figure 3 This is an enlarged view of part A of this utility model; Figure 4 This is a schematic diagram of the three-dimensional structure of the L-shaped tube of this utility model.

[0014] Reference numerals in the attached drawings: 1. Support base; 2. Insulation mechanism; 201. First tank; 202. Second tank; 203. Vacuum pump; 204. Suction pipe; 205. One-way valve; 3. Feeding mechanism; 301. Servo motor; 302. Main bevel gear; 303. L-shaped pipe; 304. Secondary bevel gear; 305. Rotary joint; 306. Nozzle; 4. Discharge pipe; 5. Steam inlet pipe; 6. Spiral heat conduction pipe; 7. First steam exhaust pipe; 8. Steam guide pipe; 9. Second steam exhaust pipe. Detailed Implementation

[0015] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0016] Please see Figure 1-4This utility model provides a technical solution: a multi-effect evaporation unit for evaporation and concentration, including a support base 1, a heat preservation mechanism 2, and a feeding mechanism 3. The heat preservation mechanism 2 is disposed on the top of the support base 1 and includes a first tank 201 and a second tank 202. Two sets of first tanks 201 are fixedly installed on the top of the support base 1 by a support rod. The top of each first tank 201 is fixedly connected to the outer wall of a set of second tanks 202, and the bottom of the second tanks 202 extends into the interior of the first tanks 201. The feeding mechanism 3 is disposed above the support base 1 and includes an L-shaped tube 303 and a nozzle 306. A set of L-shaped tubes 303 is rotatably installed on the top of each of the two sets of second tanks 202, and one end of the L-shaped tube 303 extends into the interior of the second tank 202 and is fixed. A nozzle 306 is installed; each of the two sets of second tanks 202 has a set of spiral heat-conducting pipes 6 inside, and a steam inlet pipe 5 and a first steam outlet pipe 7 are fixedly installed at both ends of the set of spiral heat-conducting pipes 6, with one end of the steam inlet pipe 5 and the first steam outlet pipe 7 extending to the outside of the first tank 201; a steam guide pipe 8 is fixedly installed on the top of one set of second tanks 202, with one end of the steam guide pipe 8 extending to the inside of the other set of second tanks 202 and fixedly connected to one end of the other set of spiral heat-conducting pipes 6, and a second steam outlet pipe 9 is fixedly installed on the other end of the other set of spiral heat-conducting pipes 6, with one end of the second steam outlet pipe 9 extending to the outside of the first tank 201; a discharge pipe 4 is fixedly installed at the bottom of each of the two sets of second tanks 202, with one end of the discharge pipe 4 passing through the bottom of the first tank 201, and a valve is installed on the discharge pipe 4.

[0017] Secondly, the heat preservation mechanism 2 also includes a vacuum pump 203, a suction pipe 204, and a one-way valve 205. The vacuum pump 203 is fixedly installed on the outer wall of the first tank 201. The input end of the vacuum pump 203 is fixedly connected to one end of the suction pipe 204, and the other end of the suction pipe 204 is fixedly connected to and communicates with the outer wall of the first tank 201. A one-way valve 205 is provided on the suction pipe 204. The first tank 201 and the second tank 202 are stacked to form a double-layer structure. Then, the cavity formed between the two is evacuated to improve the heat preservation performance of the device, reduce the heat loss during the concentration process, reduce the energy consumption of the device operation, and improve the availability and practicality of the device.

[0018] Furthermore, the feeding mechanism 3 also includes a servo motor 301, a main bevel gear 302, a secondary bevel gear 304, and a rotary joint 305. The secondary bevel gear 304 is fixedly installed on the outer wall of the L-shaped tube 303, and the servo motor 301 is fixedly installed on the top of the second tank 202. The main bevel gear 302 is fixedly installed on the output shaft of the servo motor 301. The main bevel gear 302 and the secondary bevel gear 304 mesh with each other. The other end of the L-shaped tube 303 is rotatably installed with a rotary joint 305. Salt water is sprayed onto the spiral heat-conducting pipe 6 through the nozzle 306, so that the salt water is in uniform contact with the surface of the spiral heat-conducting pipe 6, and the heat conducted by the spiral heat-conducting pipe 6 is fully absorbed, which greatly improves the heating efficiency of the salt water.

[0019] Working principle: During use, connect the brine supply pipe to the rotary joint 305, connect the steam inlet pipe 5 to the steam supply pipe, turn on the vacuum pump 203, and extract the air between the first tank 201 and the second tank 202 through the suction pipe 204 to create a vacuum. Then, introduce steam into the spiral heat-conducting pipe 6 through the steam inlet pipe 5 to heat the surface of the spiral heat-conducting pipe 6. Finally, discharge the heat-absorbing steam into the recovery equipment through the first exhaust pipe 7. At the same time, turn on the servo motor 301 to drive the main bevel gear 302 to rotate. The main bevel gear 302 meshes with the secondary bevel gear 304, driving the L-shaped tube 303 to rotate, which in turn drives the nozzle 306 to rotate inside the second tank 202, injecting brine into the L-shaped tube 303. The nozzle 306 then sprays brine onto the surface of the spiral heat-conducting tube 6, heating the brine. The steam generated by the heated brine is discharged through the steam pipe 8 into another set of spiral heat-conducting tubes 6 inside the second tank 202, allowing for secondary evaporation and concentration. The concentrated brine is then discharged and collected through the discharge pipe 4.

[0020] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. Multi-effect evaporation unit for evaporation concentration treatment, characterized in that, include: Support base (1); The heat preservation mechanism (2) is set on the top of the support base (1). The heat preservation mechanism (2) includes a first tank (201) and a second tank (202). Two sets of first tanks (201) are fixedly installed on the top of the support base (1) by a support rod. The top of the first tank (201) is fixedly connected to the outer wall of a set of second tanks (202). The bottom of the second tank (202) extends into the interior of the first tank (201). The feeding mechanism (3) is located above the support base (1). The feeding mechanism (3) includes an L-shaped tube (303) and a nozzle (306). A set of L-shaped tubes (303) is rotatably installed on the top of the two sets of second tanks (202). One end of the L-shaped tube (303) extends into the interior of the second tank (202) and is fixedly installed with a nozzle (306).

2. The multiple-effect evaporation unit for evaporation concentration treatment according to claim 1, characterized in that: The heat preservation mechanism (2) also includes a vacuum pump (203), a suction pipe (204) and a one-way valve (205). The vacuum pump (203) is fixedly installed on the outer wall of the first tank (201). The input end of the vacuum pump (203) is fixedly connected to one end of the suction pipe (204), and the other end of the suction pipe (204) is fixedly connected to and communicates with the outer wall of the first tank (201). A one-way valve (205) is provided on the suction pipe (204).

3. The multiple-effect evaporation unit for evaporation concentration treatment according to claim 2, characterized in that: The feeding mechanism (3) also includes a servo motor (301), a main bevel gear (302), a secondary bevel gear (304), and a rotary joint (305). The secondary bevel gear (304) is fixedly installed on the outer wall of the L-shaped tube (303). The servo motor (301) is fixedly installed on the top of the second tank (202). The main bevel gear (302) is fixedly installed on the output shaft of the servo motor (301). The main bevel gear (302) and the secondary bevel gear (304) mesh with each other. The rotary joint (305) is rotatably installed on the other end of the L-shaped tube (303).

4. The multiple effect evaporation unit for evaporation concentration treatment according to claim 3, characterized in that: The interior of each of the two sets of second tanks (202) is provided with a set of spiral heat-conducting pipes (6). At both ends of the set of spiral heat-conducting pipes (6) are fixedly installed steam inlet pipes (5) and first steam outlet pipes (7). One end of the steam inlet pipe (5) and the first steam outlet pipe (7) extends to the outside of the first tank (201).

5. The multiple effect evaporation unit for evaporation concentration treatment according to claim 4, characterized in that: A steam pipe (8) is fixedly installed on the top of the first set of second tanks (202). One end of the steam pipe (8) extends into the interior of another set of second tanks (202) and is fixedly connected to one end of another set of spiral heat pipes (6). A second exhaust pipe (9) is fixedly installed on the other end of the other set of spiral heat pipes (6). One end of the second exhaust pipe (9) extends to the outside of the first tank (201).

6. The multiple effect evaporation unit for evaporation concentration treatment according to claim 5, characterized in that: A set of discharge pipes (4) are fixedly installed at the bottom of the two sets of second tanks (202). One end of the discharge pipe (4) passes through the bottom of the first tank (201), and a valve is provided on the discharge pipe (4).

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