Ammonium sulfate plate type heat exchange device

Abstract

The invention discloses an ammonium sulfate plate type heat exchange device, which belongs to the technical field of heat exchange equipment and comprises a front-stage frame plate and a rear-stage frame plate, bases are arranged on two sides of the bottom of the front-stage frame plate and two sides of the bottom of the rear-stage frame plate, a first connector is connected with a burst treatment mechanism, and an ultrasonic dredging mechanism is arranged on the rear-stage frame plate. The ultrasonic dredging mechanism is used for causing the combined crystals in the dredging grooves in the heat exchange sheets to vibrate at high frequency; and a control mechanism is also arranged on the front-stage frame plate. In the long-term heat exchange treatment of the ammonium sulfate solution, under the cooperation of the ultrasonic dredging mechanism and the burst treatment mechanism, the combined crystal is effectively stripped from the inner wall of the dredging guide groove, the control mechanism is matched to monitor the flow of the discharged ammonium sulfate solution in real time, and when the flow data is lower than a flow threshold value, the burst treatment mechanism and the ultrasonic dredging mechanism are automatically controlled to operate; the combined crystals are effectively removed, and the heat exchange effect and the stable flow of the ammonium sulfate solution after heat exchange are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of heat exchange equipment, and in particular relates to an ammonium sulfate plate heat exchange device. Background Art

[0002] Ammonium sulfate is mostly present as colorless crystals and is mainly used as a fertilizer, suitable for various soils and crops. It can also be used in textiles, leather, medicine and other fields.

[0003] The commonly used method in industry is to absorb ammonia in coke oven gas with sulfuric acid to obtain ammonium sulfate solution, and then pump the ammonium sulfate solution to the spray equipment through a chemical pump, and then spray the ammonium sulfate solution into a flash tower through the spray equipment, and then carry out high-temperature crystallization in the flash tower to obtain primary ammonium sulfate. After high-temperature dissolution and deep filtration, high-quality ammonium sulfate finished products can be obtained.

[0004] When the ammonium sulfate solution is pumped into the spraying equipment, it is necessary to preheat the ammonium sulfate solution through a plate heat exchanger to avoid a large amount of ammonium sulfate solution vaporizing after being sprayed into the flash tower, thereby reducing losses.

[0005] The advantages of using a plate heat exchanger are: the ammonium sulfate solution is heated evenly, and when the boiler steam pipe is discharged into the pores, the ammonium sulfate solution effectively exchanges heat with it on both sides of the heat exchange plate; the heat exchange plate adopts a closed design, which effectively reduces the pollution to the surrounding air environment during the heat exchange process compared to other open heat exchangers.

[0006] However, there are also considerable problems when it is actually put into use: due to the small gaps between the heat exchange plates and the fact that the guide grooves used to improve the heat exchange effect are mostly densely distributed on the heat exchange plates, ammonium sulfate and other sulfur- and nitrogen-containing compound crystals appear in the area where the ammonium sulfate solution is in direct contact with the heat exchange plates. Although the embedding strength of the heat exchange plates is not high, as the use time accumulates, these crystals are retained in the guide grooves in the form of pieces, affecting the discharge volume of the ammonium sulfate solution, reducing the preheating amount of the ammonium sulfate solution per unit time, and affecting the heat exchange effect due to the barrier.

[0007] Therefore, it is necessary to provide a plate heat exchanger that can automatically clean the combined crystals between the heat exchange plates. Summary of the invention

[0008] The object of the present invention is to provide an ammonium sulfate plate heat exchange device to solve the problems existing in the prior art.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an ammonium sulfate plate heat exchange device, comprising a front-stage frame plate and a rear-stage frame plate, bases are provided on both sides of the bottom of the front-stage frame plate and the rear-stage frame plate, mounting bolts are interspersed on both sides of the front-stage frame plate and the rear-stage frame plate, one end of the mounting bolt is sleeved with a limiting washer and locked by a limiting nut, the other end of the mounting bolt is connected to a connecting bolt, a washer is sleeved on the connecting bolt and locked by a nut, the upper and lower parts of the middle side of the front-stage frame plate are connected to support plates, and the support plates are interspersed with the rear-stage frame plate; A heat exchange plate is arranged between the front frame plate and the rear frame plate and between the support plates. The heat exchange plates are pressed against each other. A sealing gasket is arranged on one side of each heat exchange plate. A dredging guide groove is arranged on the front and back sides of each heat exchange plate. Medium holes are arranged on the upper and lower parts of one side of the heat exchange plate. Air holes are arranged on the upper and lower parts of the other side of the heat exchange plate. Under the blocking of the sealing gasket, the upper and lower medium holes are connected through the dredging guide groove at the front of the heat exchange plate, and the upper and lower air holes are connected through the dredging guide groove at the rear of the heat exchange plate. A joint 1 is provided at the upper and lower parts of one side of the front-stage frame plate, and the joint 1 is connected to the medium hole, one of the joints 1 is connected to an electronic flow meter, and the discharge end of the electronic flow meter is connected to a discharge pipe; the other joint 1 is connected to a surge processing mechanism, and the surge processing mechanism is used to quickly switch the ammonium sulfate solution discharged into the heat exchange plate on and off; The upper and lower parts of the other side of the front frame plate are provided with a second joint, and the second joint is connected with the air hole; The rear frame plate is provided with an ultrasonic dredging mechanism, which is used to cause the combined crystals in the dredging guide grooves on the heat exchange plate to vibrate at high frequency; The front frame plate is also provided with a control mechanism, which is used to receive the flow data input by the electronic flow meter in real time, and automatically control the operation of the agitation processing mechanism and the ultrasonic drainage mechanism by analyzing the flow data.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The ammonium sulfate plate heat exchange device of the present invention, in the long-term heat exchange treatment of ammonium sulfate solution, cooperates with the ultrasonic drainage mechanism and the surge treatment mechanism to enable the combined crystals to effectively peel off the inner wall of the drainage guide groove, and is equipped with a control mechanism to monitor the flow rate of the discharged ammonium sulfate solution in real time. When the flow rate data is lower than the flow rate threshold, the surge treatment mechanism and the ultrasonic drainage mechanism are automatically controlled to operate, effectively removing the combined crystals, ensuring the heat exchange effect and a relatively stable flow rate of the ammonium sulfate solution after heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the heat exchange plate in the present invention; Figure 3 It is a connection diagram of the agitation processing mechanism in the present invention; Figure 4 for Figure 3 A partial cutaway diagram of Figure 5 for Figure 1 A schematic diagram of the enlarged structure of the connection of the middle agitation processing mechanism; Figure 6 It is a schematic diagram of the enlarged structure of the control mechanism in the present invention; Figure 7 It is a schematic diagram of the connection of each module in the development board of the present invention.

[0012] In the figure: 1 front frame plate, 2 rear frame plate, 3 mounting bolts, 4 connecting bolts, 5 washers, 6 nuts, 7 support plates, 8 heat exchange plates, 9 sealing pads, 10 guide grooves, 11 medium holes, 12 air holes, 13 joint 1, 14 electronic flow meter, 15 discharge pipe, 16 joint 2, 17 installation pipe, 18 installation sealing plate, 19 motor 1, 20 bearing plate, 21 introduction pipe, 22 connecting piece, 23 spiral pipe, 24 row hole, 25 guide pipe, 26 inlet pipe, 27 Sliding block, 28 sealing ring, 29 guide hole, 30 sliding sleeve, 31 connecting column, 32 movable opening, 33 oblique holes, 34 retaining ring, 35 sealing gasket, 36 support rod, 37 transmission box, 38 motor 2, 39 turntable, 40 swing hole, 41 swing arm, 42 connecting block, 43 mounting frame, 44 electric push rod, 45 double connecting frame, 46 side shifting piece, 47 ultrasonic vibrator, 48 connecting frame, 49 matching shifting piece, 50 fixing rod, 51 control box, 52 development board, 53 driver. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0014] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5, an ammonium sulfate plate heat exchange device, comprising a front-stage frame plate 1 and a rear-stage frame plate 2, both sides of the bottom of the front-stage frame plate 1 and the rear-stage frame plate 2 are bolted to a base 101, both sides of the front-stage frame plate 1 and the rear-stage frame plate 2 are vertically and evenly provided with mounting side grooves, and mounting bolts 3 are inserted into the side grooves, one end of the mounting bolt 3 is sleeved with a limiting washer and locked by a limiting nut, and the other end of the mounting bolt 3 is connected to a connecting bolt 4 at the center position, and a washer 5 is sleeved on the connecting bolt 4 and locked by a nut 6, and support plates 7 are welded to the upper and lower parts of the middle side of the front-stage frame plate 1, and the support plates 7 are slidably inserted into the rear-stage frame plate 2, and the support plates 7 are used to limit the upper and lower positions of the heat exchange plate 8; A heat exchanger 8 is arranged between the front frame plate 1 and the rear frame plate 2 and between the support plates 7. The heat exchangers 8 are pressed against each other. A sealing gasket groove is provided in the front of each heat exchanger 8. A sealing gasket 9 is tightly installed in the sealing gasket groove. A heat exchanger without a dredging guide groove 10 is arranged between adjacent heat exchangers 8. The rearmost heat exchanger 8 has no medium hole 11 and air hole 12. The front and rear surfaces of the heat exchanger 8 are provided with a dredging guide groove 10. The upper and lower parts of one side of the heat exchanger 8 are provided with a medium hole 11. The upper and lower parts of the other side of the heat exchanger 8 are provided with an air hole 12. Under the blocking of the sealing gasket 8, the upper and lower medium holes 11 are connected through the dredging guide groove 10 at the front of the heat exchanger 8, and the upper and lower air holes 12 are connected through the dredging guide groove 10 at the rear of the heat exchanger 8. A joint 13 is integrally provided at the upper and lower parts of the right side of the front-stage frame plate 1, and the joint 13 is connected to the medium hole 11. The lower joint 13 is flange-connected to the electronic flow meter 14, and the discharge end flange of the electronic flow meter 14 is flange-connected to the discharge pipe 15, and one end of the discharge pipe 15 is connected to the discharge pipe of the spray equipment; the lower joint 13 is connected to the surge processing mechanism, and the surge processing mechanism is used to quickly switch the ammonium sulfate solution discharged into the heat exchange plate 8 on and off; Under the action of the stimulation treatment mechanism, the ammonium sulfate solution pressurized by the chemical pump is continuously changed in on-off state. Therefore, when discharged into the dredging guide groove 10, the discharge pressure of the ammonium sulfate changes repeatedly, destroying the nodular surfaces of the combined crystals on the inner wall of the dredging guide groove 10 and the nodular surfaces between the crystals. Under the instantaneous pressure change, the combined crystals are fragmented, so that under the flushing of the ammonium sulfate solution, the combined crystals are effectively peeled off the inner wall of the dredging guide groove 10.

[0015] A second joint 16 is integrally provided on the upper and lower parts of the left side of the front-stage frame plate 1 and is connected to the air hole 12. The upper second joint 16 flange is connected to the boiler steam insulation pipe, and the lower second joint 16 flange is connected to the external branch steam insulation pipe, which is used to discharge the remaining hot steam to other areas for waste heat use.

[0016] When both ends of the mounting bolt 3 are locked by the limiting nuts and the nuts 6, the heat exchange plates 8 are pressed against each other to ensure the sealing between the heat exchange plates 8; the ammonium sulfate solution can be discharged from the upper joint 13 into each front guide groove 10, and finally discharged through the lower joint 13; the high-temperature steam can be discharged from the upper joint 2 16 into each rear guide groove 10. During this period, multiple layers of diversion are arranged in the guide groove 10 to effectively heat the ammonium sulfate solution.

[0017] An ultrasonic dredging mechanism is provided on the rear frame plate 2, and the ultrasonic dredging mechanism is used to cause the combined crystals in the dredging guide groove 10 on the heat exchange plate 8 to vibrate at a high frequency; Under the left and right of the ultrasonic drainage mechanism, the combined crystals between the heat exchange plates 8 are vibrated at high frequencies, which accelerates the separation of the combined crystals from the inner wall of the drainage guide groove 10 and increases the degree of fragmentation of the combined crystals.

[0018] A control mechanism is also provided on the front frame plate 1, and the control mechanism is used to receive the flow data input by the electronic flow meter 14 in real time, and automatically control the operation of the agitation processing mechanism and the ultrasonic drainage mechanism by analyzing the flow data.

[0019] The control mechanism monitors the flow rate of the discharged ammonium sulfate solution in real time. When the flow rate data is lower than the flow rate threshold, the sudden treatment mechanism and the ultrasonic drainage mechanism are automatically controlled to operate, so as to effectively remove the combined crystals, ensure the heat exchange effect and a relatively stable flow rate of the ammonium sulfate solution after heat exchange.

[0020] See also Figure 1 , Figure 3 , Figure 4 and Figure 5 The agitation processing mechanism includes a mounting pipe 17 connected to the flange of the joint 13, the left end of the mounting pipe 17 is connected to the mounting cover plate 18, the mounting cover plate 18 is bolted to fix the motor 19, the motor 19 is a stepping motor, the mounting pipe 17 is slidably matched with the bearing plate 20, and the rotor shaft of the motor 19 is connected to the front end center position of the bearing plate 20 by an interference key, and a bearing groove is opened at the center position of the mounting cover plate 18, the interference seal in the bearing groove is inserted into the sealing bearing 1, and the interference seal of the rotor shaft of the motor 19 is inserted into the inner ring of the sealing bearing 1; A bearing installation groove is provided on one side of the installation pipe 17 and the introduction pipe 21, and a sealing bearing 2 is inserted into the interference seal in the bearing installation groove. Connecting pieces 22 are integrally provided on both sides of the rear end of the bearing plate 20, and the rear end of the connecting piece 22 is integrally provided on the left end side of the introduction pipe 21. A spiral tube 23 is integrally provided at the rear end center position of the introduction pipe 21, and the spiral tube 23 is slidably inserted into the medium hole 11. A drainage hole 24 is provided at the bottom of the spiral tube 23 and at the position corresponding to each drainage guide groove 10 connected to the medium hole 11. The drainage hole 24 is an arc-shaped opening, and the opening of the medium hole 11 communicating with the drainage guide groove 10 is the same size as the opening of the drainage hole 24, and the opening arc is 210 degrees. When the rotor shaft of the motor 19 reciprocates within a limit of 50 degrees, the coil 23 can be driven to flip back and forth, so that the drainage hole 24 directly corresponds to the opening size of the guide groove 10 and the direction of the corresponding flow channel constantly changes. Under this change, the ammonium sulfate solution discharged from the drainage hole 24 can more effectively flush the various flow channels in the guide groove 10, thereby destroying the combined crystal boundary state.

[0021] The upper end flange of the installation pipe 17 is connected to the guide riser 25, and the upper end flange of the guide riser 25 is connected to the inlet pipe 26. The inlet pipe 26 is used to flange the discharge end of the chemical accumulator, and the discharge end of the chemical accumulator is connected to the discharge end of the chemical pump. The pipe connected to the suction end of the chemical pump is inserted into the bottom pipe of the tank loaded with ammonium sulfate solution. When the chemical accumulator instantly disconnects the flow process of the surge treatment mechanism, the ammonium sulfate solution continuously discharged by the chemical pump is stored. When the surge treatment mechanism instantly opens the flow process, the ammonium sulfate solution is released; A reciprocating blocking mechanism is provided on the riser pipe 25 , and the reciprocating blocking mechanism is used to perform a reciprocating blocking operation on the ammonium sulfate solution discharged from the lower portion of the riser pipe 25 .

[0022] See also Figure 1 , Figure 3 , Figure 4 and Figure 5 The reciprocating blocking mechanism includes a sliding block 27 slidably arranged in the guide riser 25, and the upper and lower parts of the sliding block 27 are evenly sealed and embedded with a sealing ring 28. The sealing ring 28 is made of graphite copper. The size of the sealing ring 28 is set to ensure that the sliding block 27 can move up and down in the guide riser 25, and can also prevent the ammonium sulfate solution from passing through the matching position of the sliding block 27 and the guide riser 25. A guide hole 29 is provided at the center of the sliding block 27, and a sliding sleeve 30 is slidably sleeved on the guide riser 25. The left and right sides of the guide riser 25 are provided with movable openings 32. The two sides of the sliding sleeve 30 are bolted to fix connecting columns 31, and one end of the connecting column 31 slides through the movable opening 32 and is bolted to the sliding block 27; The bottom of the sliding block 27 is evenly provided with oblique holes 33 in the circumferential direction and the oblique holes 33 are connected with the guide holes 29. A baffle ring 34 is integrally provided at the lower part of the guide riser 25. A sealing gasket ring 35 is bonded to the top of the baffle ring 34. The material of the sealing gasket ring 35 is fluororubber. The front side bolts of the guide riser 25 are fixed to the support rod 36, the front end bolts of the support rod 36 are fixed to the transmission box 37, the side bolts of the transmission box 37 are fixed to the motor 2 38, the rotor shaft of the motor 2 38 passes through the transmission box 37 and is connected to the center position of the turntable 39 by an interference key, a swing hole 40 is provided on the top of the transmission box 37, the side of the turntable 39 is rotatably connected to the swing arm 41, one side of the sliding sleeve 30 is bolted to fix the connecting block 42, the bottom screws of the connecting block 42 are fixed to the mounting frame 43, and the upper end of the swing arm 41 is rotatably connected to the mounting frame 43.

[0023] When the motor 2 38 is running, it drives the turntable 39 to rotate, thereby driving the lower end of the swing arm 41 to swing around the center of the turntable 39, thereby driving the connecting block 42 to move up and down quickly. When the connecting block 42 moves up and down quickly, the lower end of the sliding block 27 is constantly changing between pressing and moving away from the sealing gasket ring 35. When the lower end of the sliding block 27 is pressed on the sealing gasket ring 35, the ammonium sulfate solution discharged into the guide hole 29 cannot be discharged through the inclined discharge hole 33, so that the ammonium sulfate solution discharged from the discharge hole 24 instantly loses the supplementary hydraulic pressure; when the lower end of the sliding block 27 is away from the sealing gasket ring 35, the ammonium sulfate solution discharged into the guide hole 29 is discharged through the inclined discharge hole 33, so that the ammonium sulfate solution discharged from the discharge hole 24 instantly obtains the supplementary hydraulic pressure; because this resistance-passage conversion is an instantaneous reciprocating change, it promotes the fragmentation of the layered structure of the combined crystal, and cooperates with the flushing of the ammonium sulfate solution to make the combined crystal more quickly peeled off from the inner walls of each flow channel in the dredging guide groove 10.

[0024] See also Figure 1 The ultrasonic drainage mechanism includes an electric push rod 44 bolted to both sides of the middle part of the rear frame plate 2. The electric push rod 44 is a stepper motor driven electric push rod. The top rod of the electric push rod 44 is bolted to a double connecting frame 45. The double connecting frame 45 is a U-shaped plate. The two ends of the double connecting frame 45 are bolted to a side shifting piece 46. The side shifting piece 46 slides in contact with both sides of the heat exchange plate 8. The top side shifting piece 46 is integrally provided with a connecting frame 48. The connecting frame 48 is a U-shaped plate. The connecting frame 48 is bolted to a matching shifting piece 49. The matching shifting piece 49 vertically corresponds to the medium hole 11. The ultrasonic vibrator 47 is bolted to the side shifting piece 46 and the matching shifting piece 49. The contact surface of the ultrasonic vibrator 47 slides in contact with the heat exchange plate 8.

[0025] The high-frequency power input line of the ultrasonic vibrator 47 is connected to the high-frequency power output terminal of the external ultrasonic generator, and the frequency model selected by the ultrasonic vibrator 47 is 26KHZ.

[0026] During the extension and retraction of the top rod of the electric push rod 44, the side shift plate 46 and the matching shift plate 49 are driven to move forward and backward, and the ultrasonic vibrator 47 converts the high-frequency electrical energy into sound wave vibration energy, which can cause the combined crystals in the dredging guide groove to fluidize, and the strength of the nodular surfaces of the combined crystals and the dredging guide groove 10 as well as the strength of the nodular surfaces of each crystal are weakened, resulting in a state of smaller particle breakage and fragmentation, so that the peeled crystals are not easy to continue to nodule in the dredging guide groove 10, and due to the reciprocating movement back and forth, ultrasonic vibration treatment can be performed on the dredging guide groove 10 in each area.

[0027] See also Figure 1 and Figure 6 The control mechanism includes a fixing rod 50 bolted to the front-stage frame plate 1, one end of the fixing rod 50 is bolted to the control box 51, the control box 51 is fixed with an insulating pad screw to the development board 52, the control box 51 is fixed with a screw on the upper side of the development board 52, and the main power input terminal of the driver 43 is connected to the external power supply through a cable.

[0028] See also Figure 7 The development board 52 is provided with a control module, which includes a flow value receiving module, which is used to receive the flow data input in real time from the electronic flow meter 14; the flow value receiving module is connected to an analysis and processing module, which is used to compare and analyze the flow data input in real time with the flow threshold, and issue an operation instruction; Among them, the flow threshold sets the minimum flow Q. When the real-time received flow P<Q, the lower control module is issued an operation instruction. When the real-time received flow P≥Q, the lower control module is issued a stop operation instruction.

[0029] The analysis and processing module is connected to the relay control module, the drive control module, the steering speed control module 1 and the steering speed control module 2. The relay control module is used to control the operation of the ultrasonic vibrator 47. The signal access pin of the relay control module is connected to the signal input end of the peripheral integrated relay through a signal line. The upper power connection pole of the peripheral integrated relay is connected to the external power supply through a cable, and the lower power connection pole of the peripheral integrated relay is connected to the power access end of the ultrasonic generator through a cable, and the ultrasonic generator remains in an on-state; the drive control module is used to control the operation of the motor 2 38. The signal output pin of the drive control module is connected to the signal input end of one of the drivers 53 through a signal line. The signal input terminal of the steering speed control module 1 is connected to the power-controlled terminal of the motor 2 38 through a cable; the steering speed control module 1 is used to control the motor 19 to reciprocate at the same turning angle, and the signal output pin of the steering speed control module 1 is connected to the signal input terminal of another driver 53 through a signal line, and the electronic control output terminal of the driver 53 is connected to the power-controlled terminal of the motor 19 through a cable; the steering speed control module 2 is used to control the operation of the electric push rod 44, and the signal output pin of the steering speed control module 2 is connected to the signal input terminal of the last driver 53 through a signal line, and the electronic control output terminal of the driver 53 is connected to the power-controlled terminal of the electric push rod 44 through a cable.

[0030] Among them, after the driving control module receives the running instruction, the motor 2 38 rotates at high speed throughout the whole circle; after the steering speed control module 1 receives the running instruction, the rotor shaft of the motor 19 rotates back and forth at an angle of 50 degrees; after the steering speed control module 1 receives the stop operation instruction, the rotor shaft of the motor 19 is reset, so that the drainage hole 24 effectively corresponds to the medium hole 11 and the guide groove 10 connecting opening and is locked; after the steering speed control module 2 receives the running instruction, the electric push rod 44 drives the side shift plate 46 and the matching shift plate 49 to move back and forth. During the movement, the side shift plate 46 and the matching shift plate 49 repeatedly contact the front-stage frame plate 1 and the rear-stage frame plate 2. After the steering speed control module 2 receives the stop operation instruction, the electric push rod 44 drives the side shift plate 46 and the matching shift plate to move until they contact the rear-stage frame plate 2 and stop.

[0031] The working principle of this embodiment is as follows: Ultrasonic drainage mechanism and abrupt treatment mechanism: Under the left and right sides of the ultrasonic drainage mechanism, the combined crystals between the heat exchange plates 8 are vibrated at high frequency, accelerating the peeling of the combined crystals from the inner wall of the drainage guide groove 10 and increasing the degree of fragmentation of the combined crystals. As a result, under the action of the abrupt treatment mechanism, the ammonium sulfate solution pressurized by the chemical pump is continuously changed in on-off state. Therefore, when discharged into the drainage guide groove 10, the discharge pressure of ammonium sulfate changes repeatedly, destroying the nodular surfaces of the combined crystals on the inner wall of the drainage guide groove 10 and the nodular surfaces between the crystals. Under the instantaneous pressure change, the combined crystals are fragmented, so that under the flushing of the ammonium sulfate solution, the combined crystals are effectively peeled off the inner wall of the drainage guide groove 10.

[0032] Ultrasonic drainage mechanism, abrupt treatment mechanism, electronic flow meter 14 and control mechanism: the control mechanism monitors the flow rate of the discharged ammonium sulfate solution in real time. When the flow data is lower than the flow threshold, the abrupt treatment mechanism and the ultrasonic drainage mechanism are automatically controlled to effectively remove the combined crystals, thereby ensuring the heat exchange effect and a relatively stable flow rate of the ammonium sulfate solution after heat exchange.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. An ammonium sulfate plate heat exchange device, characterized in that: It comprises a front-stage frame plate (1) and a rear-stage frame plate (2), wherein bases (101) are arranged on both sides of the bottom of the front-stage frame plate (1) and the rear-stage frame plate (2), mounting bolts (3) are inserted on both sides of the front-stage frame plate (1) and the rear-stage frame plate (2), one end of the mounting bolt (3) is sleeved with a limiting washer and is locked by a limiting nut, the other end of the mounting bolt (3) is connected to a connecting bolt (4), a washer (5) is sleeved on the connecting bolt (4) and is locked by a nut (6), and the upper and lower parts of the middle side of the front-stage frame plate (1) are connected to support plates (7), and the support plates (7) are inserted through the rear-stage frame plate (2); A heat exchange plate (8) is provided between the front frame plate (1) and the rear frame plate (2) and between the support plates (7); the heat exchange plates (8) are pressed against each other; a sealing gasket (9) is provided on one side of each heat exchange plate (8); a dredging guide groove (10) is provided on the front and rear sides of each heat exchange plate (8); a medium hole (11) is provided on the upper and lower parts of one side of the heat exchange plate (8); and an air hole (12) is provided on the upper and lower parts of the other side of the heat exchange plate (8); and under the blocking of the sealing gasket (8), the upper and lower medium holes (11) are connected through the dredging guide groove (10) at the front of the heat exchange plate (8); and the upper and lower air holes (12) are connected through the dredging guide groove (10) at the rear of the heat exchange plate (8); A connector (13) is provided at the upper and lower parts of one side of the front frame plate (1), and the connector (13) is connected to the medium hole (11), one of the connectors (13) is connected to an electronic flow meter (14), and the discharge end of the electronic flow meter (14) is connected to a discharge pipe (15); the other connector (13) is connected to a surge processing mechanism, and the surge processing mechanism is used to quickly switch the ammonium sulfate solution discharged into the heat exchange plate (8) on and off; A second joint (16) is provided at the upper and lower parts of the other side of the front-stage frame plate (1), and the second joint (16) is in communication with the air hole (12); An ultrasonic dredging mechanism is provided on the rear frame plate (2), and the ultrasonic dredging mechanism is used to cause the combined crystals in the dredging guide groove (10) on the heat exchange plate (8) to vibrate at a high frequency; The front frame plate (1) is also provided with a control mechanism, which is used to receive flow data inputted by the electronic flow meter (14) in real time, and automatically control the operation of the agitation processing mechanism and the ultrasonic drainage mechanism by analyzing the flow data.

2. The ammonium sulfate plate heat exchange device according to claim 1, characterized in that: The abrupt change handling mechanism comprises a mounting pipe (17) connected to the connector 1 (13); one end of the mounting pipe (17) is connected to a mounting cover plate (18); a motor 1 (19) is arranged on the mounting cover plate (18); a bearing plate (20) is rotatably arranged in the mounting pipe (17); and a rotor shaft of the motor 1 (19) is connected to a central position of one end of the bearing plate (20); An inlet pipe (21) is rotatably arranged on one side of the installation pipe (17); two sides of the rotation bearing plate (20) are connected to one end side of the inlet pipe (21) through connecting pieces (22); a rotary pipe (23) is arranged at the center of one end of the inlet pipe (21); drainage holes (24) are arranged at the bottom of the rotary pipe (23) and at positions corresponding to the drainage guide grooves (10) connected to the medium holes (11); The upper end of the installation pipe (17) is connected to a guide riser (25), and the upper end of the guide riser (25) is connected to an inlet pipe (26); The riser pipe (25) is provided with a reciprocating blocking mechanism, and the reciprocating blocking mechanism is used to perform a reciprocating blocking operation on the ammonium sulfate solution discharged from the riser pipe (25).

3. An ammonium sulfate plate heat exchange device according to claim 2, characterized in that: The reciprocating blocking mechanism comprises a sliding blocker (27) slidably arranged in the guide riser (25), sealing rings (28) are evenly arranged on the upper and lower parts of the sliding blocker (27), a guide hole (29) is arranged at the center of the sliding blocker (27), a sliding sleeve (30) is sleeved on the guide riser (25), movable openings (32) are arranged on both sides of the guide riser (25), connecting columns (31) are connected to both sides of the sliding sleeve (30), and one end of the connecting column (31) passes through the movable opening (32) and is connected to the sliding blocker (27); The bottom of the sliding block (27) is evenly provided with oblique holes (33) in an annular direction, and the oblique holes (33) are connected to the guide hole (29); a retaining ring (34) is provided at the lower part of the guide riser (25), and a sealing gasket (35) is provided at the top of the retaining ring (34); One side of the guide riser (25) is connected to a transmission box (37) via a support rod (36); a second motor (38) is provided on the side of the transmission box (37); a rotor shaft of the second motor (38) passes through the transmission box (37) and is connected to a rotating disk (39); a swing hole (40) is provided on the top of the transmission box (37); one side of the rotating disk (39) is rotatably connected to a swing arm (41); one side of the sliding sleeve (30) is connected to a connecting block (42); the bottom of the connecting block (42) is connected to a mounting frame (43); one end of the swing arm (41) is rotatably connected to the mounting frame (43).

4. The ammonium sulfate plate heat exchange device according to claim 3, characterized in that: The ultrasonic drainage mechanism comprises an electric push rod (44) installed on both sides of the middle part of the rear frame plate (2), the top rod of the electric push rod (44) is connected to a double connecting frame (45), both ends of the double connecting frame (45) are connected to side shifting plates (46), the side shifting plates (46) are in sliding contact with both sides of the heat exchange plate (8), the top side shifting plate (46) is connected to a matching shifting plate (49) through a connecting frame (48), and ultrasonic vibrators (47) are provided on the side shifting plates (46) and the matching shifting plates (49).

5. The ammonium sulfate plate heat exchange device according to claim 4, characterized in that: The control mechanism comprises a fixing rod (50) connected to a front-stage frame plate (1); one end of the fixing rod (50) is connected to a control box (51); a development board (52) is arranged in the control box (51); and a driver (53) is arranged in the control box (51) and located above the development board (52).

6. The ammonium sulfate plate heat exchange device according to claim 5, characterized in that: The development board (52) is provided with a connection control module, the connection control module comprising a flow value receiving module, the flow value receiving module is used to receive flow data input in real time from the electronic flow meter (14); the flow value receiving module is connected to an analysis and processing module, the analysis and processing module is used to compare and analyze the flow data input in real time with a flow threshold value, and issue an operation instruction; The analysis and processing module is connected to a relay control module, a drive control module, a steering speed control module 1 and a steering speed control module 2, wherein the relay control module is used to control the operation of the ultrasonic vibrator (47), the drive control module is used to control the operation of the motor 2 (38), the steering speed control module 1 is used to control the motor 1 (19) to reciprocate at the same rotation angle, and the steering speed control module 2 is used to control the operation of the electric push rod (44).

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