Plate heat exchanger

Abstract

The utility model discloses a plate heat exchanger, which relates to the technical field of plate heat exchangers, and comprises a heat exchanger body, a water inlet, a carbon fiber filter, a carbon fiber filter screen, a clamping block, a storage block, a second filter screen, a slag flushing filter, a first filter screen, a supporting block and a rotating rod, the other side of the rotating rod is connected with a baffle plate, and the outer side of the baffle plate is connected with a first magnet; a second magnet is arranged on the other side of the first magnet, a movable block is arranged below the baffle, and the other side of the movable block is connected with an extending block. According to the slag flushing filter, the first filter screen and the baffle are arranged in the slag flushing filter, the first filter screen automatically slides to the position above the baffle after filtering residues, when excessive residues are accumulated, the first magnet is separated from the second magnet, and therefore the baffle rotates, the residues automatically fall into the containing block below, the residues are taken out after heat dissipation, and the slag flushing filter is convenient to use. And meanwhile, a movable block is arranged to prevent the baffle from being opened suddenly during residue cleaning.

Description

Technical Field

[0001] The utility model relates to the technical field of plate heat exchangers, in particular to a plate heat exchanger. Background Art

[0002] Plate heat exchangers are widely used in industries such as metallurgy, mining, petroleum, chemical engineering, electric power, medicine, food, chemical fiber, papermaking, textiles, shipping, and heating. They can be used for heating, cooling, evaporation, condensation, sterilization, and waste heat recovery. During the steelmaking process, water slag flushing is often used to cool high-temperature slag, turning it into a recyclable raw material. During the slag flushing process, water absorbs heat and turns into high-temperature slag water. Using this heat for heating reduces coal consumption and conserves water resources, making it a common method for reusing slag water. However, because slag water contains slag and fine suspended matter, it must be filtered before heat exchange to prevent clogging of the heat exchanger.

[0003] The existing patent (Announcement No.: CN106524798B) discloses a plate heat exchanger that achieves slag filtration in the slag water while significantly reducing downtime caused by slag cleaning. During the implementation of this solution, the following problems were found in the existing technology and have not been well solved:

[0004] The heat exchanger needs to be cleaned by a motor during use, and the slag flushing water is often hot, which can easily affect the service life of the motor. Secondly, the machine needs to be shut down for cleaning when cleaning the residue, and the residue accumulates inside the water inlet pipe, which generates high heat, and the carbon fiber mesh cannot be cleaned synchronously. Utility Model Content

[0005] In order to improve the above-mentioned problems that a motor needs to be used for residue cleaning, the machine needs to be shut down for residue cleaning, and the replacement of the carbon fiber mesh is cumbersome, the utility model provides a plate heat exchanger.

[0006] The utility model provides a plate heat exchanger, which adopts the following technical solutions:

[0007] A plate heat exchanger comprises a heat exchanger body, a water inlet is provided above the heat exchanger body, a carbon fiber filter is connected to the center of the water inlet, a carbon fiber filter is connected to the interior of the carbon fiber filter, a card block is connected to the other side of the carbon fiber filter, a storage block is further connected to the top of the carbon fiber filter, and a second filter is connected to the bottom of the storage block;

[0008] The center of the water inlet is also connected to a slag flushing filter, the center of the slag flushing filter is provided with a first filter screen, a support block is connected to the bottom of the first filter screen, rotating rods are connected to both sides of the bottom of the slag flushing filter, the other side of the rotating rod is connected to a baffle, the outer side of the baffle is connected to a first magnet, the other side of the first magnet is provided with a second magnet, a movable block is provided below the baffle, and the other side of the movable block is connected to an extension block.

[0009] Through the above technical solution, it is convenient to quickly disassemble the carbon fiber filter by driving the card block, thereby improving the disassembly efficiency. In addition, by providing a baffle in cooperation with the first magnet, when the residue accumulates too much, the residue is automatically cleaned into the storage block below, and the residue is dissipated inside the storage block, which is convenient for subsequent cleaning.

[0010] Optionally, in the above-mentioned plate heat exchanger, the water inlet is symmetrically distributed on both sides of the upper and lower centers of the slag flushing filter, and the water inlet is also symmetrically distributed on both sides of the center of the carbon fiber filter, and the water inlet is integrated with the heat exchanger body.

[0011] The above technical solution facilitates the double filtration of the slag flushing water by cooperating with the slag flushing filter and the carbon fiber filter.

[0012] Optionally, in the above-mentioned plate heat exchanger, the first filter screen has an inverted "V"-shaped structure, support blocks are symmetrically distributed on both sides below the first filter screen, and the support blocks are integrated with the slag flushing filter.

[0013] Through the above technical solution, it is convenient to filter the residue through the first filter screen, so that the residue slides toward the support blocks on both sides.

[0014] Optionally, in the above-mentioned plate heat exchanger, the carbon fiber filter and the receiving block are engaged with each other, the receiving block and the second filter are installed as an integral whole, the carbon fiber filter and the card block are engaged with each other, and the card block and the carbon fiber filter are installed as an integral whole.

[0015] Through the above technical solution, it is convenient to store and dissipate heat of the residue through the storage block, and the card block drives the carbon fiber filter to be quickly replaced.

[0016] Optionally, in the above-mentioned plate heat exchanger, the baffle forms a rotating structure with the slag flushing filter through a rotating rod, the baffle is installed in an integrated manner with the first magnet, and the first magnet and the second magnet are attracted to each other.

[0017] Through the above technical solution, the baffle plate cooperates with the rotating rod, and when the residue accumulates too much, it automatically falls into the storage block below.

[0018] Optionally, in the above-mentioned plate heat exchanger, the movable block and the extension block are connected by rotational connection, the extension block and the slag flushing filter are connected by hot melt connection, and the center of the extension block coincides with the center of the baffle.

[0019] The above technical solution facilitates limiting the baffle by the movable block, thereby preventing the baffle from opening suddenly when cleaning residues.

[0020] In summary, the present invention has at least one of the following beneficial effects:

[0021] A first filter screen and a baffle are provided inside the residue flushing filter. The first filter screen filters the residue and automatically slides onto the baffle. When the residue accumulates too much, the first magnet and the second magnet separate, so that the baffle rotates, causing the residue to automatically fall into the storage block below. The residue is removed after heat dissipation. At the same time, a movable block is provided to prevent the baffle from opening suddenly when cleaning the residue.

[0022] By installing a carbon fiber filter above the heat exchanger, the slag water is filtered twice, the scale generation rate inside the heat exchanger body is reduced, and the number of times the heat exchanger is cleaned is reduced. At the same time, the card block is used in conjunction with the carbon fiber filter, so that the carbon fiber filter can be replaced without stopping the machine, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the overall front view structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the top view of the slag flushing filter of the utility model;

[0025] Figure 3 This is a schematic diagram of the top view of the carbon fiber filter of the utility model;

[0026] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0027] In the figure: 1. Heat exchanger body; 2. Water inlet; 3. Slag flushing filter; 4. First filter screen; 5. Support block; 6. Carbon fiber filter; 7. Carbon fiber filter screen; 8. Card block; 9. Storage block; 10. Second filter screen; 11. Baffle; 12. Rotating rod; 13. First magnet; 14. Second magnet; 15. Movable block; 16. Extension block. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4 The utility model is described in further detail.

[0029] Please refer to the attached figure in the instruction manual Figure 1-4, the utility model provides an embodiment: a plate heat exchanger, including a heat exchanger body 1, a water inlet 2 is provided above the heat exchanger body 1, a carbon fiber filter 6 is connected to the center of the water inlet 2, and a carbon fiber filter 7 is connected to the inside of the carbon fiber filter 6. The carbon fiber filter 7 is used to perform secondary filtration on the slag water to reduce scale formation. A clamping block 8 is connected to the other side of the carbon fiber filter 7, which is used for quick disassembly and replacement. A storage block 9 is also connected above the carbon fiber filter 6, and a second filter 10 is connected below the storage block 9. The storage block 9 is used to temporarily store and dissipate heat for easy subsequent cleaning;

[0030] A slag flushing filter 3 is also connected to the center of the water inlet 2. A first filter screen 4 is provided at the center of the slag flushing filter 3. A support block 5 is connected below the first filter screen 4. The support block 5 cooperates with the first filter screen 4 to filter the residue and slide the residue to both sides. Rotating rods 12 are connected to both sides of the bottom of the slag flushing filter 3. The other side of the rotating rod 12 is connected to a baffle 11. The rotating rod 12 makes the baffle 11 movable, which facilitates the discharge of residue. A first magnet 13 is connected to the outside of the baffle 11, and a second magnet 14 is provided on the other side of the first magnet 13. A movable block 15 is provided below the baffle 11, and an extension block 16 is connected to the other side of the movable block 15. The movable block 15 cooperates with the extension block 16 to prevent the baffle 11 from opening suddenly when cleaning the residue.

[0031] See the attached drawings in the specification Figure 1-4 The water inlet 2 is symmetrically distributed on both sides of the upper and lower centers of the slag flushing filter 3. The water inlet 2 is also symmetrically distributed on both sides of the center of the carbon fiber filter 6. The water inlet 2 and the heat exchanger body 1 are integrated. The slag flushing filter 3 and the carbon fiber filter 6 cooperate to perform double filtration on the slag flushing water.

[0032] See the attached drawings in the specification Figure 1-4 The first filter screen 4 has an inverted "V"-shaped structure, and support blocks 5 are symmetrically distributed on both sides below the first filter screen 4. The support blocks 5 are integrated with the slag filter 3. The residue is filtered through the first filter screen 4, so that the residue slides toward the support blocks 5 on both sides.

[0033] See the attached drawings in the specification Figure 1-4 The carbon fiber filter 6 and the storage block 9 are engaged with each other, the storage block 9 and the second filter screen 10 are installed in an integrated manner, the carbon fiber filter 6 and the card block 8 are engaged with each other, the card block 8 and the carbon fiber filter screen 7 are installed in an integrated manner, the residue is stored and dissipated through the storage block 9, and the card block 8 drives the carbon fiber filter screen 7 to be quickly replaced.

[0034] See the attached drawings in the specification Figure 1-4The baffle 11 forms a rotating structure with the slag filter 3 through the rotating rod 12. The baffle 11 and the first magnet 13 are installed in an integrated manner. The first magnet 13 and the second magnet 14 are adsorbed on each other. Through the cooperation of the baffle 11 and the rotating rod 12, when the residue accumulates too much, it automatically falls into the storage block 9 below.

[0035] See the attached drawings in the specification Figure 1-4 The connection between the movable block 15 and the extension block 16 is a rotational connection, and the connection between the extension block 16 and the slag filter 3 is a hot melt connection. The center of the extension block 16 coincides with the center of the baffle 11. The baffle 11 is limited by the movable block 15 to prevent the baffle 11 from opening suddenly when cleaning the residue.

[0036] Working principle: When in use, first, the slag flushing water enters the interior of the slag flushing filter 3 through the water inlet 2, and then impacts the first filter screen 4. The residue flows toward both sides along the first filter screen 4, and the slag flushing water passes through the first filter screen 4 and enters the interior of the water inlet 2. When the residue accumulates above the baffle 11, when the amount of residue is too much, its pressure is greater than the suction force of the first magnet 13 and the second magnet 14, which will cause the baffle 11 to rotate through the rotating rod 12, so that the residue falls into the interior of the storage block 9 below, and then the baffle 11 is driven to reset by the torsion springs on both sides of the rotating rod 12. Repeat the above steps. When the residue inside the storage block 9 needs to be cleaned, the movable block 15 is rotated so that it is under the baffle 11 to prevent the baffle 11 from moving. After cleaning the storage block 9, the movable block 15 is reset. According to actual conditions, the torsion spring can be replaced with a spring installed under the baffle 11 to drive the baffle 11 to reset.

[0037] As mentioned above, when the slag flushing water enters the interior of the carbon fiber filter 6, it is filtered by the double carbon fiber filter 7. When the carbon fiber filter 7 needs to be filtered, the block 8 is pulled toward the outside to drive the carbon fiber filter 7 to slide out to complete the disassembly and replacement. Finally, the slag flushing water enters the interior of the heat exchanger body 1. Cold water pipes and hot water pipes are respectively provided on both sides of the heat exchanger body 1, and the water is discharged after heating.

[0038] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plate heat exchanger, comprising a heat exchanger body (1), characterized in that: A water inlet (2) is provided above the heat exchanger body (1); a carbon fiber filter (6) is connected to the center of the water inlet (2); a carbon fiber filter (7) is connected to the interior of the carbon fiber filter (6); a clamping block (8) is connected to the other side of the carbon fiber filter (7); a storage block (9) is further connected above the carbon fiber filter (6); and a second filter (10) is connected below the storage block (9); The center of the water inlet (2) is also connected to a slag flushing filter (3), a first filter screen (4) is provided at the center of the slag flushing filter (3), a support block (5) is connected below the first filter screen (4), rotating rods (12) are connected to both sides below the slag flushing filter (3), the other side of the rotating rod (12) is connected to a baffle (11), the outer side of the baffle (11) is connected to a first magnet (13), the other side of the first magnet (13) is provided with a second magnet (14), a movable block (15) is provided below the baffle (11), and the other side of the movable block (15) is connected to an extension block (16).

2. A plate heat exchanger according to claim 1, characterized in that: The water inlet (2) is symmetrically distributed on both sides of the upper and lower centers of the slag flushing filter (3), and the water inlet (2) is also symmetrically distributed on both sides of the center of the carbon fiber filter (6). The water inlet (2) and the heat exchanger body (1) are installed in an integrated manner.

3. The plate heat exchanger according to claim 1, characterized in that: The first filter screen (4) has an inverted "V"-shaped structure, and support blocks (5) are symmetrically distributed on both sides below the first filter screen (4). The support blocks (5) and the slag flushing filter (3) are installed in an integrated manner.

4. The plate heat exchanger according to claim 1, characterized in that: The carbon fiber filter (6) and the receiving block (9) are mutually engaged, the receiving block (9) and the second filter screen (10) are integrally installed, the carbon fiber filter (6) and the clamping block (8) are mutually engaged, and the clamping block (8) and the carbon fiber filter screen (7) are integrally installed.

5. The plate heat exchanger according to claim 1, characterized in that: The baffle (11) forms a rotating structure with the slag filter (3) through a rotating rod (12). The baffle (11) and the first magnet (13) are installed in an integrated manner. The first magnet (13) and the second magnet (14) are attracted to each other.

6. The plate heat exchanger according to claim 1, characterized in that: The movable block (15) and the extension block (16) are connected by rotation, the extension block (16) and the slag filter (3) are connected by hot melt, and the center of the extension block (16) coincides with the center of the baffle (11).

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