Heat energy recovery device for glyoxal production and use method of heat energy recovery device

Abstract

The invention relates to the technical field of heat energy recovery, and discloses a heat energy recovery device for glyoxal production and a using method thereof.The heat energy recovery device comprises a heat preservation water tank, a plurality of rectangular flow pipes are fixedly installed in the heat preservation water tank and penetrate through the heat preservation water tank, a first rectangular box is fixedly installed at the left ends of the rectangular flow pipes, and a second rectangular box is fixedly installed at the right ends of the rectangular flow pipes; the multiple rectangular flow pipes communicate with the first rectangular box, and a second rectangular box is fixedly installed at the right ends of the multiple rectangular flow pipes. The trapezoidal cleaning blocks can remove scale generated on the inner wall of the bottom of the rectangular flow pipe, after the strip-shaped plates leave the special-shaped movable plates, the cleaning springs can drive the corresponding special-shaped movable plates to reset under the action of elastic force, and in the process that the strip-shaped plates continuously move up and down to make contact with the special-shaped movable plates, the cleaning springs can clean the inner wall of the bottom of the rectangular flow pipe. And the trapezoidal cleaning block can continuously move left and right to prevent the inner wall of the bottom of the rectangular flow pipe from scaling, so that the heat transfer efficiency of the inner wall of the rectangular flow pipe to water in the heat preservation water tank is prevented from being influenced by scaling, and the heat recovery efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat energy recovery equipment, in particular to a heat energy recovery device for glyoxal production and a use method thereof. Background Art

[0002] During the glyoxal production process, high-temperature hot fluids (such as steam or high-temperature process liquids) are generated at many points. These hot fluids can be passed through a heat exchanger to transfer heat to cold water, raising the water temperature. The hot water is then stored in large hot water storage tanks. These tanks are typically well insulated to minimize heat loss.

[0003] In the glyoxal production process, the heat flow is usually at a high temperature. As the heat flow flows in the pipeline, due to temperature changes, some dissolved substances in the heat flow may precipitate due to reduced solubility. The heat flow is an aqueous solution containing calcium and magnesium ions (such as some industrial water). When the temperature rises, the solubility of substances such as calcium and magnesium carbonates and sulfates decreases, and scale is precipitated on the inner wall of the pipeline. The scale will affect the heat transfer of the heat flow to the water tank and affect the heat recovery effect. Summary of the Invention

[0004] The purpose of the present invention is to provide a heat energy recovery device for glyoxal production and a method for using the same, so as to solve the problem that in the glyoxal production process, the heat flow is usually at a high temperature. As the heat flow flows in the pipeline, due to temperature changes, some dissolved substances in the heat flow may precipitate due to reduced solubility. The heat flow is an aqueous solution containing calcium and magnesium ions (such as some industrial water). When the temperature rises, the solubility of substances such as calcium and magnesium carbonates and sulfates decreases, and scale is precipitated on the inner wall of the pipeline. The scale will affect the heat transfer of the heat flow to the water tank and the heat recovery effect.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions: The present invention is a heat recovery device for glyoxal production, comprising an insulated water tank, wherein a plurality of rectangular flow tubes are fixedly installed in the insulated water tank, wherein the plurality of rectangular flow tubes all penetrate the insulated water tank, wherein a rectangular box 1 is fixedly installed at the left end of the plurality of rectangular flow tubes, wherein the plurality of rectangular flow tubes are communicated with the rectangular box 1, wherein a rectangular box 2 is fixedly installed at the right end of the plurality of rectangular flow tubes, wherein the plurality of rectangular flow tubes are communicated with the rectangular box 2, wherein a mounting plate is fixedly installed in the rectangular box 2, and further comprising: Cleaning mechanism, the cleaning mechanism includes a rotating shaft rotatably installed on the top of the mounting plate, a hollow reciprocating screw is fixedly sleeved on the rotating shaft, an internally threaded circular block is threadedly sleeved on the internally threaded circular block, a strip-shaped limiting groove is formed on the back of the second rectangular box, a strip-shaped plate is fixedly installed on the internally threaded circular block, and the end of the strip-shaped plate extends into the strip-shaped limiting groove and is slidably connected with the strip-shaped limiting groove. A plurality of trapezoidal cleaning blocks are respectively slidably installed on the bottom inner walls of the plurality of rectangular flow pipes, a plurality of connecting plates are respectively fixedly connected between the plurality of trapezoidal cleaning blocks, and special-shaped movable plates are respectively fixedly installed on the backs of the trapezoidal cleaning blocks on the rightmost side in the plurality of rectangular flow pipes, and the right ends of the plurality of special-shaped movable plates all extend into the second rectangular box.

[0006] Further, L-shaped movable plates are respectively fixedly installed on the trapezoidal cleaning blocks on the leftmost side in the plurality of rectangular flow pipes, the left ends of the plurality of L-shaped movable plates respectively extend outside the first rectangular box and are all slidably connected with the first rectangular box. A plurality of cleaning springs are fixedly installed on the left side of the first rectangular box, the left ends of the plurality of cleaning springs are respectively fixedly connected with the plurality of L-shaped movable plates, and an inlet flow pipe is fixedly installed on the left side of the first rectangular box.

[0007] Further, a anti-blocking mechanism is arranged in the second rectangular box, the anti-blocking mechanism includes a U-shaped drawer slidably installed in the second rectangular box, the front of the U-shaped drawer extends outside the second rectangular box, two rectangular rods are fixedly installed in the U-shaped drawer, an inclined filter plate is slidably sleeved on the two rectangular rods, vibration springs are respectively sleeved on the two rectangular rods, the left ends of the two vibration springs are both fixedly connected with the U-shaped drawer, and the right ends of the two vibration springs are both fixedly connected with the inclined filter plate.

[0008] Further, a liquid outlet pipe is fixedly installed on the right side of the second rectangular box, a transmission box is fixedly installed on the top of the second rectangular box, the top end of the liquid outlet pipe is communicated with the transmission box, the top end of the rotating shaft extends into the transmission box and is rotatably connected with the inner wall of the top of the transmission box, a transmission plate is fixedly installed on the top of the transmission box, a plurality of circular pipes are fixedly installed on the rotating shaft, and the plurality of circular pipes are all in contact with the inner wall of the transmission box.

[0009] Further, a plurality of energy storage mechanisms are respectively arranged on the plurality of rectangular flow pipes, the energy storage mechanism includes a circular heat transfer rod rotatably installed on the rectangular flow pipe, a plurality of first heat transfer plates and two second heat transfer plates are rotatably installed on the circular heat transfer rod, the bottoms of the plurality of first heat transfer plates are all in contact with the top of the rectangular flow pipe, the plurality of first heat transfer plates are distributed in the heat preservation water tank, and the two second heat transfer plates are distributed in the rectangular flow pipe.

[0010] Further, a transmission gear is fixedly sleeved on the circular heat transfer rod, a meshing strip is fixedly installed on the right side of the trapezoidal cleaning block, and the meshing strip is adapted to the transmission gear.

[0011] Furthermore, two support limiting plates are fixedly installed on the top of the trapezoidal cleaning block. The tops of the two support limiting plates are in contact with the inner wall of the top of the rectangular flow pipe, and both of the two support limiting plates are slidably connected to the inner wall of the top of the rectangular flow pipe.

[0012] Furthermore, a method for a heat energy recovery device for glyoxal production is as follows: S1: Removing scale in the rectangular flow pipe: The trapezoidal cleaning block will also drive the L-shaped movable plate to move synchronously. At this time, the cleaning spring undergoes tensile deformation. The trapezoidal cleaning block will remove the scale generated on the inner wall of the bottom of the rectangular flow pipe. After the strip plate leaves the special-shaped movable plate, the cleaning spring will drive the corresponding special-shaped movable plate to reset under the action of elastic force. During the process that the strip plate continuously moves up and down and contacts the special-shaped movable plate, the trapezoidal cleaning block will continuously move left and right to prevent scale on the inner wall of the bottom of the rectangular flow pipe. S2: Filtering and collecting scale and impurities: When the heat flow passes through the inclined filter plate, the scale and impurities brought out from the rectangular flow pipe by the heat flow will be filtered down. After the strip plate leaves the special-shaped movable plate, the special-shaped movable plate will quickly reset under the elastic force of the cleaning spring and hit the inclined filter plate. During the process that the inclined filter plate is vibrated by the impact, the smaller impurities and scale attached to the inclined filter plate will be vibrated and fall into the C-shaped drawer, and are effectively collected and uniformly discharged outside the rectangular box. S3: Preventing scale on the top of the rectangular flow pipe: During the continuous heating of the water in the heat preservation water tank, these precipitated impurities and minerals will fall on the top of the rectangular flow pipe. The rotation of the second heat transfer plate will drive the circular heat transfer rod to rotate, and the circular heat transfer rod will drive the first heat transfer plate to rotate. The circular heat transfer rod and the first heat transfer plate can not only be used to transfer heat, but also disturb the water flow around them during the rotation of the first heat transfer plate, and disturb the impurities and minerals on the top of the rectangular flow pipe to the inner wall of the bottom of the heat preservation water tank.

[0013] The present invention has the following beneficial effects: (1)A heat energy recovery device for glyoxal production according to the present invention. When in use, the heat flow generated in glyoxal production enters the first rectangular box through the inlet pipe, then enters the transmission box through the rectangular flow pipe, the second rectangular box, and the liquid outlet pipe, and then is discharged from the transmission plate. When the heat flow enters the transmission box, it will drive several circular pipes to rotate. The circular pipes will drive the hollow reciprocating screw to rotate. The hollow reciprocating screw will drive the internally threaded circular block to move up and down reciprocally. During the process of the internally threaded circular block descending, it will drive the strip plate to descend. The strip plate moves along the strip limiting groove away from the transmission box under the limiting effect of the strip limiting groove. When the strip plate contacts several special-shaped movable plates during the descending process, when the strip plate contacts the special-shaped movable plates, the special-shaped movable plates will move towards the first rectangular box. The special-shaped movable plates will drive several trapezoidal cleaning blocks to move along the bottom inner wall of the rectangular flow pipe. During the movement of the trapezoidal cleaning blocks, they will drive two support limiting plates to move synchronously. Since the top of the support limiting plate contacts the top inner wall of the rectangular flow pipe, when the trapezoidal cleaning blocks move, the support limiting plates will support and limit the trapezoidal cleaning blocks to ensure that the trapezoidal cleaning blocks can move stably. The trapezoidal cleaning blocks will also drive the L-shaped movable plates to move synchronously. At this time, the cleaning spring undergoes tensile deformation. The trapezoidal cleaning blocks will remove the scale generated on the bottom inner wall of the rectangular flow pipe. After the strip plate leaves the special-shaped movable plates, the cleaning spring will drive the corresponding special-shaped movable plates to reset under the elastic force. During the process of the strip plate continuously moving up and down and contacting the special-shaped movable plates, the trapezoidal cleaning blocks will continuously move left and right to prevent the bottom inner wall of the rectangular flow pipe from scaling, thereby avoiding the influence of scaling on the heat transfer efficiency of the water in the insulation water tank by the inner wall of the rectangular flow pipe, and thus improving the efficiency of heat recovery; (2)A heat energy recovery device for glyoxal production according to the present invention. After the strip plate leaves the special-shaped movable plates, the special-shaped movable plates will quickly reset under the elastic force of the cleaning spring and hit the inclined filter plate. The inclined filter plate will move away from the insulation water tank. At this time, the vibration spring will undergo tensile deformation. When the special-shaped movable plates finish hitting the inclined filter plate, they will be reset and stabilized under the action of the L-shaped movable plates. At this time, the inclined filter plate will reset under the elastic force of the vibration spring. Since the strip plate will contact several special-shaped movable plates during the movement, and because the inclined filter plate is inclined, several special-shaped movable plates will generate different forces when hitting the inclined filter plate. The force generated by the special-shaped movable plate closest to the rectangular rod at the bottom is the largest, and the force generated by the special-shaped movable plate farthest from the rectangular rod at the top is the smallest, which can ensure the durability of the inclined filter plate and prevent the inclined filter plate from deforming. When the heat flow passes through the inclined filter plate, it will filter down the scale and impurities brought out of the rectangular flow pipe by the heat flow, avoiding the scale and impurities from entering the liquid outlet pipe and the transmission box and affecting the transmission of the transmission box, and at the same time avoiding the impurities and scale from entering the next purification step, effectively reducing the purification pressure. During the process of the inclined filter plate being hit and vibrating, it will vibrate the smaller impurities and scale attached to the inclined filter plate into the U-shaped drawer, effectively collecting and uniformly discharging them outside the second rectangular box; (3) The present invention provides a heat recovery device for glyoxal production. During the movement of the trapezoidal cleaning block, the meshing bar will be driven to move. The meshing bar will contact the transmission gear and mesh with the transmission gear. The meshing bar will drive the transmission gear to rotate. The transmission gear will drive the circular heat transfer rod to rotate. The circular heat transfer rod will drive the second heat transfer plate to rotate. The second heat transfer plate will increase the contact surface with the heat flow during the rotation. Since the heat flow fills the rectangular flow tube, most of the heat will be transferred to the insulated water tank through the wall of the rectangular flow tube. However, the heat of the central part of the heat flow in the rectangular flow tube will not be directly transferred to the insulated water tank. The heat of the central part of the heat flow can be directly transferred to the insulated water tank through the rotation of the second heat transfer plate, thereby improving heat transfer and In order to improve the efficiency of energy storage and avoid the loss and waste of heat energy, the water in the insulated water tank will inevitably contain impurities and some minerals. As the water in the insulated water tank continues to heat up, these precipitated impurities and minerals will fall on the top of the rectangular flow tube. The rotation of the second heat transfer plate will drive the circular heat transfer rod to rotate, and the circular heat transfer rod will drive the first heat transfer plate to rotate. The circular heat transfer rod and the first heat transfer plate can not only be used to transfer heat, but also disturb the water flow around it during the rotation of the first heat transfer plate, and disturb the impurities and minerals on the top of the rectangular flow tube to the bottom inner wall of the insulated water tank, effectively preventing the impurities and minerals that fall on the top of the rectangular flow tube from scaling due to temperature rise, and avoiding scale affecting the heat energy recovery efficiency of the water in the insulated water tank for heat flow.

[0014] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a front cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the front section structure of the present invention; Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of A; Figure 5 For the present invention Figure 2 Schematic diagram of the enlarged structure of B; Figure 6 For the present invention Figure 3 Schematic diagram of the enlarged structure of C in the middle; Figure 7 Partial structural schematic diagram of the cleaning mechanism of the present invention; Figure 8 Schematic diagram of the method steps of the present invention.

[0017] In the attached drawings, the list of components represented by each reference numeral is as follows: In the figure: 1, heat preservation water tank; 2, rectangular flow pipe; 3, rectangular box 1; 4, rectangular box 2; 401, mounting plate; 5, cleaning mechanism; 501, rotating shaft; 502, hollow reciprocating screw; 503, internally threaded round block; 504, strip-shaped limiting groove; 505, strip-shaped plate; 506, trapezoidal cleaning block; 507, connecting plate; 508, special-shaped movable plate; 509, L-shaped movable plate; 510, cleaning spring; 511, inflow pipe; 6, anti-blocking mechanism; 601, U-shaped drawer; 602, rectangular rod; 603, inclined filter plate; 604, vibration spring; 605, liquid outlet pipe; 606, transmission box; 607, transmission plate; 608, circular pipe; 7, energy storage mechanism; 701, circular heat transfer rod; 702, first heat transfer plate; 703, second heat transfer plate; 704, transmission gear; 705, meshing strip; 706, support limiting plate. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figure 1 - Figure 8 As shown in the figure, the present invention is a heat energy recovery device for glyoxal production, including a heat preservation water tank 1, a plurality of rectangular flow pipes 2 are fixedly installed in the heat preservation water tank 1, a plurality of rectangular flow pipes 2 all penetrate through the heat preservation water tank 1, a rectangular box 1 is fixedly installed at the left end of a plurality of rectangular flow pipes 2, a plurality of rectangular flow pipes 2 are all communicated with the rectangular box 1, a rectangular box 2 is fixedly installed at the right end of a plurality of rectangular flow pipes 2, a plurality of rectangular flow pipes 2 are all communicated with the rectangular box 2, a mounting plate 401 is fixedly installed in the rectangular box 2, and further includes: Cleaning mechanism 5, the cleaning mechanism 5 includes a rotating shaft 501 rotatably installed on the top of the mounting plate 401. A hollow reciprocating screw 502 is fixedly sleeved on the rotating shaft 501. An internally threaded circular block 503 is threadedly sleeved on the hollow reciprocating screw 502. A strip-shaped limiting groove 504 is formed on the back of the rectangular box two 4. A strip-shaped plate 505 is fixedly installed on the internally threaded circular block 503. The end of the strip-shaped plate 505 extends into the strip-shaped limiting groove 504 and is slidably connected to the strip-shaped limiting groove 504. A plurality of trapezoidal cleaning blocks 506 are respectively slidably installed on the bottom inner walls of a plurality of rectangular flow pipes 2. A connecting plate 507 is fixedly connected between a plurality of trapezoidal cleaning blocks 506. Special-shaped movable plates 508 are respectively fixedly installed on the backs of the trapezoidal cleaning blocks 506 on the rightmost side in a plurality of rectangular flow pipes 2. The right ends of a plurality of special-shaped movable plates 508 all extend into the rectangular box two 4.

[0020] As Figure 5 shown, L-shaped movable plates 509 are respectively fixedly installed on the trapezoidal cleaning blocks 506 on the leftmost side in a plurality of rectangular flow pipes 2. The left ends of a plurality of L-shaped movable plates 509 respectively extend outside the rectangular box one 3 and are all slidably connected to the rectangular box one 3. A plurality of cleaning springs 510 are fixedly installed on the left side of the rectangular box one 3. The left ends of a plurality of cleaning springs 510 are respectively fixedly connected to a plurality of L-shaped movable plates 509. An inlet flow pipe 511 is fixedly installed on the left side of the rectangular box one 3.

[0021] The trapezoidal cleaning block 506 will also drive the L-shaped movable plate 509 to move synchronously. At this time, the cleaning spring 510 undergoes a tensile deformation. The trapezoidal cleaning block 506 will remove the scale generated on the bottom inner wall of the rectangular flow pipe 2. After the strip-shaped plate 505 leaves the special-shaped movable plate 508, the cleaning spring 510 will drive the corresponding special-shaped movable plate 508 to reset under the action of elastic force. During the process that the strip-shaped plate 505 continuously moves up and down and contacts the special-shaped movable plate 508, the trapezoidal cleaning block 506 will continuously move left and right to prevent the bottom inner wall of the rectangular flow pipe 2 from scaling, thereby avoiding the scaling from affecting the heat transfer efficiency of the water in the insulation water tank 1 by the inner wall of the rectangular flow pipe 2, and thus improving the efficiency of recovering heat.

[0022] As Figure 6 shown, an anti-blocking mechanism 6 is arranged in the rectangular box two 4. The anti-blocking mechanism 6 includes a U-shaped drawer 601 slidably installed in the rectangular box two 4. The front of the U-shaped drawer 601 extends outside the rectangular box two 4. Two rectangular rods 602 are fixedly installed in the U-shaped drawer 601. An inclined filter plate 603 is slidably sleeved on the two rectangular rods 602. Vibration springs 604 are respectively sleeved on the two rectangular rods 602. The left ends of the two vibration springs 604 are both fixedly connected to the U-shaped drawer 601. The right ends of the two vibration springs 604 are both fixedly connected to the inclined filter plate 603.

[0023] After the strip-shaped plate 505 leaves the special-shaped movable plate 508, the special-shaped movable plate 508 will quickly reset under the elastic force of the cleaning spring 510 and hit the inclined filter plate 603. The inclined filter plate 603 will move away from the heat preservation water tank 1. At this time, the vibration spring 604 will undergo tensile deformation. When the special-shaped movable plate 508 hits the inclined filter plate 603, it will be reset and stabilized under the action of the L-shaped movable plate 509. At this time, the inclined filter plate 603 will reset under the elastic force of the vibration spring 604.

[0024] As Figure 3 shown, a liquid outlet pipe 605 is fixedly installed on the right side of the rectangular box II 4, a transmission box 606 is fixedly installed on the top of the rectangular box II 4, the top end of the liquid outlet pipe 605 is communicated with the transmission box 606, the top end of the rotating shaft 501 extends into the transmission box 606 and is rotatably connected to the inner wall of the top of the transmission box 606, a transmission plate 607 is fixedly installed on the top of the transmission box 606, and a plurality of circular pipes 608 are fixedly installed on the rotating shaft 501. The plurality of circular pipes 608 are all in contact with the inner wall of the transmission box 606.

[0025] When the heat flow passes through the inclined filter plate 603, it will filter out the scale and impurities brought out from the rectangular flow pipe 2, preventing the scale and impurities from entering the liquid outlet pipe 605 and the transmission box 606 and affecting the transmission of the transmission box 606. At the same time, it also prevents impurities and scale from entering the next purification step, effectively reducing the purification pressure. During the process of the inclined filter plate 603 being impacted and vibrating, the smaller impurities and scale attached to the inclined filter plate 603 will be vibrated into the C-shaped drawer 601, and effectively collected and discharged outside the rectangular box II 4 uniformly.

[0026] As Figure 2 shown, a plurality of energy storage mechanisms 7 are respectively arranged on a plurality of rectangular flow pipes 2. The energy storage mechanism 7 includes a circular heat transfer rod 701 rotatably installed on the rectangular flow pipe 2. A plurality of first heat transfer plates 702 and two second heat transfer plates 703 are rotatably installed on the circular heat transfer rod 701. The bottoms of the plurality of first heat transfer plates 702 are all in contact with the top of the rectangular flow pipe 2. The plurality of first heat transfer plates 702 are distributed in the heat preservation water tank 1, and the two second heat transfer plates 703 are distributed in the rectangular flow pipe 2.

[0027] The water in the insulated water tank 1 inevitably contains impurities and some minerals. As the water in the insulated water tank 1 continues to heat up, these precipitated impurities and minerals will fall on the top of the rectangular flow tube 2. The rotation of the second heat transfer plate 703 will drive the circular heat transfer rod 701 to rotate, and the circular heat transfer rod 701 will drive the first heat transfer plate 702 to rotate. The circular heat transfer rod 701 and the first heat transfer plate 702 can not only be used to transfer heat, but also disturb the water flow around it during the rotation of the first heat transfer plate 702, and disturb the impurities and minerals on the top of the rectangular flow tube 2 to fall onto the bottom inner wall of the insulated water tank 1, effectively preventing the impurities and minerals that fall on the top of the rectangular flow tube 2 from scaling due to heating, thereby preventing scaling from affecting the heat energy recovery efficiency of the water in the insulated water tank 1.

[0028] like Figure 7 As shown, a transmission gear 704 is fixedly sleeved on the circular heat transfer rod 701 , and an engaging bar 705 is fixedly installed on the right side of the trapezoidal cleaning block 506 , and the engaging bar 705 is adapted to the transmission gear 704 .

[0029] During the movement of the trapezoidal cleaning block 506, the meshing bar 705 will be driven to move, and the meshing bar 705 will contact the transmission gear 704 and mesh with the transmission gear 704. The meshing bar 705 will drive the transmission gear 704 to rotate, and the transmission gear 704 will drive the circular heat transfer rod 701 to rotate. The circular heat transfer rod 701 will drive the second heat transfer plate 703 to rotate. The second heat transfer plate 703 will increase the contact area with the heat flow during the rotation. Since the heat flow fills the rectangular flow tube 2, most of the heat will be transferred to the insulated water tank 1 through the wall of the rectangular flow tube 2. However, the heat of the central part of the heat flow in the rectangular flow tube 2 will not be directly transferred to the insulated water tank 1. The rotation of the second heat transfer plate 703 can directly transfer the heat of the central part of the heat flow to the insulated water tank 1, thereby improving the efficiency of heat transfer and energy storage and avoiding the loss and waste of heat energy.

[0030] like Figure 7 As shown, two support and limit plates 706 are fixedly installed on the top of the trapezoidal cleaning block 506, and the tops of the two support and limit plates 706 are in contact with the top inner wall of the rectangular flow tube 2, and the two support and limit plates 706 are slidably connected to the top inner wall of the rectangular flow tube 2.

[0031] During the movement, the trapezoidal cleaning block 506 will drive the two support and limit plates 706 to move synchronously. Since the top of the support and limit plate 706 is in contact with the top inner wall of the rectangular flow tube 2, when the trapezoidal cleaning block 506 moves, the support and limit plate 706 will support and limit the trapezoidal cleaning block 506 to ensure that the trapezoidal cleaning block 506 can move stably.

[0032] like Figures 1-8 As shown, a method for a heat energy recovery device for glyoxal production, the method steps are as follows: S1: Removing scale in the rectangular flow tube 2: The trapezoidal cleaning block 506 will also drive the L-shaped movable plate 509 to move synchronously. At this time, the cleaning spring 510 will be stretched and deformed. The trapezoidal cleaning block 506 will remove the scale on the bottom inner wall of the rectangular flow tube 2. After the strip plate 505 leaves the special-shaped movable plate 508, the cleaning spring 510 will drive the corresponding special-shaped movable plate 508 to return to its original position under the action of elastic force. In the process of the strip plate 505 continuously moving up and down to contact the special-shaped movable plate 508, the trapezoidal cleaning block 506 will continuously move left and right to prevent scale from forming on the bottom inner wall of the rectangular flow tube 2. S2: Filtering and collecting scale and impurities: When the heat flow passes through the inclined filter plate 603, it filters out the scale and impurities brought out of the rectangular flow tube 2 by the heat flow. After the strip plate 505 leaves the special-shaped movable plate 508, the special-shaped movable plate 508 will quickly return to its original position under the elastic force of the cleaning spring 510 and hit the inclined filter plate 603. During the impact and vibration of the inclined filter plate 603, the smaller impurities and scale attached to the inclined filter plate 603 will be shaken off into the shaped drawer 601, and effectively collected and uniformly discharged outside the rectangular box 24; S3: Preventing scaling on the top of the rectangular flow tube 2: As the water in the insulated water tank 1 continues to heat up, these precipitated impurities and minerals will fall on the top of the rectangular flow tube 2. The rotation of the second heat transfer plate 703 will drive the circular heat transfer rod 701 to rotate, and the circular heat transfer rod 701 will drive the first heat transfer plate 702 to rotate. The circular heat transfer rod 701 and the first heat transfer plate 702 can not only be used to transfer heat, but also disturb the water flow around it during the rotation of the first heat transfer plate 702, and the impurities and minerals on the top of the rectangular flow tube 2 will fall onto the bottom inner wall of the insulated water tank 1.

[0033] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A heat recovery device for glyoxal production, comprising an insulated water tank (1), wherein a plurality of rectangular flow tubes (2) are fixedly installed in the insulated water tank (1), wherein the plurality of rectangular flow tubes (2) all penetrate the insulated water tank (1), wherein a rectangular box 1 (3) is fixedly installed at the left end of the plurality of rectangular flow tubes (2), wherein the plurality of rectangular flow tubes (2) are in communication with the rectangular box 1 (3), wherein a rectangular box 2 (4) is fixedly installed at the right end of the plurality of rectangular flow tubes (2), wherein the plurality of rectangular flow tubes (2) are in communication with the rectangular box 2 (4), wherein a mounting plate (401) is fixedly installed in the rectangular box 2 (4), and wherein the device is characterized in that: It further includes: A cleaning mechanism (5), the cleaning mechanism (5) includes a rotating shaft (501) rotatably installed on the top of the mounting plate (401), a hollow reciprocating screw (502) is fixedly sleeved on the rotating shaft (501), an internally threaded circular block (503) is threadedly sleeved on the internally threaded circular block (503), a strip-shaped limiting groove (504) is formed on the back of the rectangular box two (4), a strip-shaped plate (505) is fixedly installed on the internally threaded circular block (503), the end of the strip-shaped plate (505) extends into the strip-shaped limiting groove (504) and is slidably connected with the strip-shaped limiting groove (504), a plurality of trapezoidal cleaning blocks (506) are respectively slidably installed on the bottom inner walls of the plurality of rectangular flow pipes (2), a connecting plate (507) is fixedly connected between the plurality of trapezoidal cleaning blocks (506), a special-shaped movable plate (508) is fixedly installed on the back of the rightmost trapezoidal cleaning block (506) in the plurality of rectangular flow pipes (2), and the right ends of the plurality of special-shaped movable plates (508) all extend into the rectangular box two (4).

2. A heat recovery device for glyoxal production according to claim 1, characterized in that: L-shaped movable plates (509) are respectively fixedly installed on the leftmost trapezoidal cleaning blocks (506) in the plurality of rectangular flow pipes (2), the left ends of the plurality of L-shaped movable plates (509) respectively extend outside the rectangular box one (3) and are slidably connected with the rectangular box one (3), a plurality of cleaning springs (510) are fixedly installed on the left side of the rectangular box one (3), the left ends of the plurality of cleaning springs (510) are respectively fixedly connected with the plurality of L-shaped movable plates (509), and an inlet flow pipe (511) is fixedly installed on the left side of the rectangular box one (3).

3. A heat recovery device for glyoxal production according to claim 2, characterized in that: An anti-blocking mechanism (6) is arranged in the rectangular box two (4), the anti-blocking mechanism (6) includes a U-shaped drawer (601) slidably installed in the rectangular box two (4), the front of the U-shaped drawer (601) extends outside the rectangular box two (4), two rectangular rods (602) are fixedly installed in the U-shaped drawer (601), an inclined filter plate (603) is slidably sleeved on the two rectangular rods (602), vibration springs (604) are respectively sleeved on the two rectangular rods (602), the left ends of the two vibration springs (604) are both fixedly connected with the U-shaped drawer (601), and the right ends of the two vibration springs (604) are both fixedly connected with the inclined filter plate (603).

4. A heat energy recovery device for glyoxal production according to claim 3, characterized in that: An outlet pipe (605) is fixedly installed on the right side of the rectangular box two (4), a transmission box (606) is fixedly installed on the top of the rectangular box two (4), the top end of the outlet pipe (605) is communicated with the transmission box (606), the top end of the rotating shaft (501) extends into the transmission box (606) and is rotatably connected with the inner wall of the top of the transmission box (606), a transmission plate (607) is fixedly installed on the top of the transmission box (606), a plurality of circular pipes (608) are fixedly installed on the rotating shaft (501), and the plurality of circular pipes (608) are all in contact with the inner wall of the transmission box (606).

5. A heat recovery device for glyoxal production according to claim 4, characterized in that: A number of energy storage mechanisms (7) are respectively arranged on several of the rectangular flow tubes (2). The energy storage mechanism (7) includes a circular heat transfer rod (701) rotatably installed on the rectangular flow tube (2). A number of first heat transfer plates (702) and two second heat transfer plates (703) are rotatably installed on the circular heat transfer rod (701). The bottoms of the number of first heat transfer plates (702) are all in contact with the top of the rectangular flow tube (2). The number of first heat transfer plates (702) are distributed in the insulation water tank (1). The two second heat transfer plates (703) are distributed in the rectangular flow tube (2).

6. A heat recovery device for glyoxal production according to claim 5, characterized in that: A transmission gear (704) is fixedly sleeved on the circular heat transfer rod (701). A meshing strip (705) is fixedly installed on the right side of the trapezoidal cleaning block (506). The meshing strip (705) is adapted to the transmission gear (704).

7. A heat recovery device for glyoxal production according to claim 6, characterized in that: Two support limiting plates (706) are fixedly installed on the top of the trapezoidal cleaning block (506). The tops of the two support limiting plates (706) are all in contact with the inner wall of the top of the rectangular flow tube (2). The two support limiting plates (706) are both slidably connected to the inner wall of the top of the rectangular flow tube (2).

8. A method for using a heat recovery device for glyoxal production, using the heat recovery device for glyoxal production according to claim 7, characterized in that: The method steps are as follows: S1: Remove the scale in the rectangular flow tube (2): The trapezoidal cleaning block (506) will also drive the L-shaped movable plate (509) to move synchronously. At this time, the cleaning spring (510) undergoes tensile deformation. The trapezoidal cleaning block (506) will remove the scale generated on the inner wall of the bottom of the rectangular flow tube (2). After the strip plate (505) leaves the special-shaped movable plate (508), the cleaning spring (510) will drive the corresponding special-shaped movable plate (508) to reset under the action of elastic force. During the process that the strip plate (505) continuously moves up and down and contacts the special-shaped movable plate (508), the trapezoidal cleaning block (506) will continuously move left and right to prevent the inner wall of the bottom of the rectangular flow tube (2) from scaling; S2: Filter and collect the scale and impurities: When the heat flow passes through the inclined filter plate (603), the scale and impurities brought out of the rectangular flow tube (2) by the heat flow will be filtered down. After the strip plate (505) leaves the special-shaped movable plate (508), the special-shaped movable plate (508) will quickly reset under the elastic force of the cleaning spring (510) and hit the inclined filter plate (603). During the process that the inclined filter plate (603) is impacted and vibrated, the smaller impurities and scale attached to the inclined filter plate (603) will be vibrated and dropped into the U-shaped drawer (601), and effectively collected and discharged out of the rectangular box two (4) uniformly; S3: Preventing scaling on the top of the rectangular flow tube (2): As the water in the insulated water tank (1) continues to heat up, these precipitated impurities and minerals will fall on the top of the rectangular flow tube (2). The rotation of the second heat transfer plate (703) will drive the circular heat transfer rod (701) to rotate, and the circular heat transfer rod (701) will drive the first heat transfer plate (702) to rotate. The circular heat transfer rod (701) and the first heat transfer plate (702) can not only be used to transfer heat, but also disturb the water flow around the first heat transfer plate (702) during its rotation, and disturb the impurities and minerals on the top of the rectangular flow tube (2) to fall onto the bottom inner wall of the insulated water tank (1).

Images