Plate heat exchanger capable of preventing inner leakage

Abstract

The utility model discloses an inner leakage prevention plate heat exchanger which comprises a cooling box, a first motor and a second motor are fixedly installed on one side of the cooling box, a plurality of heat exchange plates are fixedly installed in the cooling box, and a cleaning assembly is fixedly installed in each heat exchange plate. The output end of the first motor and the output end of the second motor are fixedly connected with driving rods used for driving the cleaning assembly correspondingly. The cleaning assembly comprises a first bevel gear, a clamping groove is formed in the first bevel gear, the driving rod comprises a rod body, a plurality of clamping plates are elastically and slidably installed outside the rod body in the circumferential array direction through a plurality of springs, and the clamping plates correspond to the clamping groove. According to the plate heat exchanger capable of preventing inner leakage, when the plate heat exchanger works and the cleaning assembly encounters stubborn scale or other obstacles, the clamping plates can be subjected to resistance and automatically retract, the first bevel gears on the corresponding heat exchange plates do not rotate under stress any more, and therefore the heat exchange plates with faults can be rapidly positioned. The inner leakage prevention effect of the heat exchanger can be effectively guaranteed, and the service life of the heat exchanger is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchangers, and in particular relates to an internal leakage-proof plate heat exchanger. Background Art

[0002] Heat exchanger, also known as heat exchanger, is a kind of equipment whose main function is to transfer part of the heat of hot fluid to cold fluid. This equipment plays an important role in many industrial production fields such as chemical, petroleum, power, food, etc. In chemical production, heat exchanger can be used as heater, cooler, condenser, evaporator and reboiler, etc., and is widely used.

[0003] Patent CN214173052U in the conventional technology discloses a plate heat exchanger which prevents internal leakage, comprising a group of fixed plates, a plurality of heat exchange plates being evenly installed between the fixed plates along the length direction, a cold water inlet and a hot water inlet being respectively installed on the tops of both sides of the fixed plates, a cold water outlet and a hot water outlet being respectively installed on the bottoms of both sides of the fixed plates, a base plate being installed on the tops of the fixed plates, a rotating shaft being installed between both sides of the fixed plates, a driving motor and a driven handle being conveniently installed at both ends of the rotating shaft on both sides of the base plate, a transmission chain being installed between the driving motor and the driven handle, a first rotating rod being installed on the tops of both ends of the heat exchange plates, a sealing sleeve being installed at the joints between the tops of both ends of the heat exchange plates and the first rotating rod, a driving mechanism being installed between the top of the first rotating rod and the rotating shaft, a second rotating rod being fixedly installed at the bottom of the first rotating rod, and a cleaning mechanism being installed on the second rotating rod. The utility model is easy to operate and prevents internal leakage.

[0004] However, the traditional device uses a cleaning brush to directly scrape the inner wall radially. When encountering stubborn scale blocks or other obstacles, the built-in cleaning brush can easily get stuck, causing the entire cleaning system to be unable to operate, and needs to be checked one by one. Utility Model Content

[0005] The utility model aims to provide a plate heat exchanger which prevents internal leakage, so as to solve the technical problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the specific technical scheme of the utility model is as follows: an anti-internal leakage plate heat exchanger comprises a cooling box, a first motor and a second motor are fixedly installed on one side of the cooling box, a plurality of heat exchange plates are fixedly installed inside the cooling box, a cleaning assembly is fixedly installed inside each of the heat exchange plates, and the output ends of the first motor and the second motor are respectively fixedly connected with a driving rod for driving the cleaning assembly; the cleaning assembly comprises a first bevel gear, a card slot is provided inside the first bevel gear, the driving rod comprises a rod body, a plurality of card plates are elastically slidably installed on the outside of the rod body in a circumferential array direction through a plurality of springs, and the card plates are arranged corresponding to the card slots.

[0007] Preferably, a support frame is fixedly installed on the upper part of the heat exchange plate, the first bevel gear is rotatably installed on one side of the support frame, and the output ends of the first motor and the second motor are respectively fixedly connected to a transmission rod, and one end of one of the transmission rod bodies close to the first motor is fixedly connected to the transmission rod.

[0008] Preferably, a transmission pipeline is fixedly installed on the upper part of the cooling box, a guide pipe is fixedly installed inside the cooling box, the outside of the guide pipe is fixedly connected to and penetrates the heat exchange plate, and the guide pipe is fixedly connected to and penetrates the transmission pipeline.

[0009] Preferably, the first bevel gear is meshingly connected with the second bevel gear, and a screw is fixedly connected to the lower portion of the second bevel gear.

[0010] Preferably, the screw rod is rotatably installed inside the heat exchange plate, and the interior of the heat exchange plate is hollow.

[0011] Preferably, a spiral tube is threadedly connected to the outside of the screw rod, and support plates are fixedly connected to both sides of the spiral tube, and cleaning impellers are rotatably installed inside the support plates on both sides.

[0012] Preferably, two ends of the cleaning impeller are respectively fixedly connected with driven gears, a plurality of tooth plates are fixedly installed inside the heat exchange plate, and each of the driven gears is respectively meshed and connected with one of the tooth plates.

[0013] The utility model has the following advantages for the plate heat exchanger with internal leakage prevention:

[0014] In this anti-internal leakage plate heat exchanger, when working, the first motor and the second motor drive the driving rod to rotate, which in turn drives the cleaning component to perform cleaning operations. When the cleaning component encounters stubborn scale or other obstacles, the card plate will encounter resistance and automatically retract. At this time, the first bevel gear on the corresponding heat exchange plate is no longer rotated under force, thereby realizing the rapid positioning of the faulty heat exchange plate. Based on this feature, maintenance personnel can quickly find the heat exchange plate with the problem, and other heat exchange plate cleaning components operate normally, and perform corresponding cleaning and maintenance operations to ensure the normal operation of the heat exchanger. This solves the problem of the cleaning brush getting stuck in traditional devices, and also improves cleaning efficiency and maintenance convenience. By quickly locating the faulty heat exchange plate, the anti-internal leakage effect of the heat exchanger can be more effectively guaranteed and its service life can be extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

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

[0017] Figure 2 This is a schematic diagram of the heat exchange plate structure of the utility model;

[0018] Figure 3 For the utility model Figure 2 Schematic diagram of the structure at A in the middle;

[0019] Figure 4 This is a schematic diagram of the support frame structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the driving rod structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the tooth plate structure of the utility model;

[0022] Figure 7 This is a schematic diagram of the screw tube structure of the utility model.

[0023] Explanation of the markings in the figure: 1. cooling box; 2. first motor; 3. transmission pipeline; 4. heat exchange plate; 5. guide tube; 6. second motor; 7. cleaning assembly; 8. transmission rod; 9. driving rod; 701. support frame; 702. first bevel gear; 703. second bevel gear; 704. lead screw; 705. screw tube; 706. support plate; 707. driven gear; 708. cleaning impeller; 709. tooth plate; 7021. slot; 901. rod body; 902. spring; 903. card plate. DETAILED DESCRIPTION

[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the embodiments of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0025] In the description of the embodiments of the present invention, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0027] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0028] The disclosure below provides many different embodiments or examples for realizing different structures of the embodiments of the present utility model. In order to simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0029] In order to better understand the purpose, structure and function of the utility model, the following is a further detailed description of an anti-internal leakage plate heat exchanger of the utility model in conjunction with the accompanying drawings.

[0030] like Figure 1-7As shown, a plate heat exchanger for preventing internal leakage of the utility model comprises a cooling box 1, a first motor 2 and a second motor 6 are fixedly installed on one side of the cooling box 1, a plurality of heat exchange plates 4 are fixedly installed inside the cooling box 1, a cleaning assembly 7 is fixedly installed inside each heat exchange plate 4, and the output ends of the first motor 2 and the second motor 6 are respectively fixedly connected with a driving rod 9 for driving the cleaning assembly 7; the cleaning assembly 7 comprises a first bevel gear 702, a card slot 7021 is provided inside the first bevel gear 702, the driving rod 9 comprises a rod body 901, a plurality of card plates 903 are elastically slidably installed in a circumferential array direction on the outside of the rod body 901 through a plurality of springs 902, and the card plates 903 are arranged corresponding to the card slots 7021.

[0031] In the above-mentioned plate heat exchanger with internal leakage prevention, a plurality of heat exchange plates 4 are fixedly installed inside the cooling box 1, and a special cleaning assembly 7 is provided inside each heat exchange plate 4. The first motor 2 and the second motor 6 are closely connected to the driving rod 9 through the output end, and these driving rods 9 are responsible for driving the cleaning assembly 7 to perform cleaning operations. The transmission components of the cleaning assembly 7 include a first bevel gear 702, and a card slot 7021 is provided inside the first bevel gear 702 for cooperating with the driving rod 9. The driving rod 9 includes a rod body 901, and a plurality of card plates 903 are elastically slidably installed on the outside of the rod body 901 in a circumferential array direction through a plurality of springs 902. These card plates 903 are arranged corresponding to the card slots 7021, so that the driving rod 9 and the first bevel gear 702 can be closely matched to realize the transmission of power.

[0032] During operation, the first motor 2 and the second motor 6 drive the driving rod 9 to rotate, thereby driving the cleaning component 7 to perform cleaning operations. When the cleaning component 7 encounters stubborn scale or other obstacles, the card plate 903 will encounter resistance and automatically retract. At this time, the first bevel gear 702 on the corresponding heat exchange plate 4 is no longer rotated under force, thereby achieving rapid positioning of the faulty heat exchange plate 4. Based on this feature, maintenance personnel can quickly find the heat exchange plate 4 with the problem, and the cleaning components 7 of other heat exchange plates 4 operate normally, and perform corresponding cleaning and maintenance operations to ensure the normal operation of the heat exchanger. This solves the problem of the cleaning brush getting stuck in traditional devices, and also improves cleaning efficiency and maintenance convenience. By quickly locating the faulty heat exchange plate 4, the anti-internal leakage effect of the heat exchanger can be more effectively guaranteed and its service life can be extended.

[0033] In this embodiment, a support frame 701 is fixedly installed on the upper part of the heat exchange plate 4, and the first bevel gear 702 is rotatably installed on one side of the support frame 701. The output ends of the first motor 2 and the second motor 6 are respectively fixedly connected with a transmission rod 8, and one end of the transmission rod 8 body 901 close to the first motor 2 is fixedly connected to the transmission rod 8.

[0034] A support frame 701 is installed above the heat exchange plate 4 to provide solid support for the entire cleaning assembly 7. The first bevel gear 702 is rotatably mounted on one side of the support frame 701. The stable support of the support frame 701 ensures the stability and accuracy of the first bevel gear 702 during rotation. In addition, the output ends of the first motor 2 and the second motor 6 are respectively fixedly connected with a transmission rod 8, which can efficiently transmit the power of the motor to the cleaning assembly 7. The rod body 901 of one of the transmission rods 8 is fixedly connected to the other transmission rod 8 at one end close to the first motor 2 through a precise mechanism. This design not only ensures the stable transmission of power, but also makes the entire cleaning system more compact and efficient.

[0035] In this embodiment, a transmission pipeline 3 is fixedly installed on the upper part of the cooling box 1, a guide pipe 5 is fixedly installed inside the cooling box 1, the outside of the guide pipe 5 is fixedly connected to and penetrates the heat exchange plate 4, and the guide pipe 5 is fixedly connected to and penetrates the transmission pipeline 3.

[0036] During the heat exchange process, a proper amount of coolant is injected into the cooling box 1. Under the guidance of the guide pipe 5, the coolant is fully in contact with the heat exchange medium entering through the transmission pipe 3 and exchanges heat. The heat exchange plate 4 is used as a medium for heat transfer, and its special structural design makes the heat exchange process more efficient and uniform. In this way, through the coordinated cooperation of the transmission pipe 3, the guide pipe 5 and the heat exchange plate 4, the heat exchange work can be carried out smoothly inside the cooling box 1, realizing efficient energy transfer and conversion.

[0037] In this embodiment, the first bevel gear 702 is meshedly connected with the second bevel gear 703, and the lower part of the second bevel gear 703 is fixedly connected with a screw rod 704. The screw rod 704 is rotatably installed inside the heat exchange plate 4, and the heat exchange plate 4 is hollow inside. A screw tube 705 is screwed on the outside of the screw rod 704, and support plates 706 are fixedly connected on both sides of the screw tube 705, and cleaning impellers 708 are rotatably installed inside the support plates 706 on both sides. The two ends of the cleaning impeller 708 are fixedly connected with driven gears 707, and a plurality of tooth plates 709 are fixedly installed inside the heat exchange plate 4, and each driven gear 707 is meshedly connected with a tooth plate 709.

[0038] When the first motor 2 and the second motor 6 are started, they drive the first bevel gear 702 to rotate. The first bevel gear 702 transmits power to the second bevel gear 703 through meshing connection, thereby driving the screw 704 to rotate. The rotation of the screw 704 causes the solenoid 705 to move up and down along the screw 704. The lifting and lowering of the solenoid 705 drives the synchronous lifting and lowering of the support plate 706 and the cleaning impeller 708. During the lifting and lowering process, the driven gear 707 of the cleaning impeller 708 is meshed with the tooth plate 709, thereby driving the cleaning impeller 708 to rotate. This cleaning method combining rotation and lifting enables the cleaning impeller 708 to more effectively scrape off the scale and dirt on the heat exchange plate 4, achieving a more efficient and thorough cleaning effect.

[0039] The working principle of the anti-internal leakage plate heat exchanger: When working, the first motor 2 and the second motor 6 drive the driving rod 9 to rotate, and then drive the cleaning component 7 to perform cleaning operations. When the cleaning component 7 encounters stubborn scale or other obstacles, the card plate 903 will encounter resistance and automatically retract. At this time, the first bevel gear 702 on the corresponding heat exchange plate 4 is no longer rotated under force, thereby realizing the rapid positioning of the faulty heat exchange plate 4. Based on this feature, maintenance personnel can quickly find the heat exchange plate 4 with the problem, and the cleaning components 7 of other heat exchange plates 4 operate normally, and perform corresponding cleaning and maintenance operations to ensure the normal operation of the heat exchanger. Thereby solving the problem of the cleaning brush getting stuck in the traditional device, and improving the cleaning efficiency and maintenance convenience. By quickly locating the faulty heat exchange plate 4, the anti-internal leakage effect of the heat exchanger can be more effectively guaranteed and its service life can be extended.

[0040] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A plate heat exchanger with internal leakage prevention, comprising a cooling box (1), characterized in that: A first motor (2) and a second motor (6) are fixedly mounted on one side of the cooling box (1); a plurality of heat exchange plates (4) are fixedly mounted inside the cooling box (1); a cleaning assembly (7) is fixedly mounted inside each of the heat exchange plates (4); output ends of the first motor (2) and the second motor (6) are respectively fixedly connected with a driving rod (9) for driving the cleaning assembly (7); the cleaning assembly (7) comprises a first bevel gear (702); a card slot (7021) is provided inside the first bevel gear (702); the driving rod (9) comprises a rod body (901); a plurality of card plates (903) are elastically slidably mounted on the outside of the rod body (901) in a circumferential array direction via a plurality of springs (902); the card plates (903) are arranged corresponding to the card slots (7021).

2. The anti-internal leakage plate heat exchanger according to claim 1, characterized in that: A support frame (701) is fixedly mounted on the upper part of the heat exchange plate (4); the first bevel gear (702) is rotatably mounted on one side of the support frame (701); the output ends of the first motor (2) and the second motor (6) are respectively fixedly connected to a transmission rod (8); one end of a rod body (901) of the transmission rod (8) close to the first motor (2) is fixedly connected to the transmission rod (8).

3. The anti-internal leakage plate heat exchanger according to claim 1, characterized in that: A transmission pipeline (3) is fixedly installed on the upper part of the cooling box (1), a guide pipe (5) is fixedly installed inside the cooling box (1), the outside of the guide pipe (5) is fixedly connected to and penetrates the heat exchange plate (4), and the guide pipe (5) is fixedly connected to and penetrates the transmission pipeline (3).

4. The anti-internal leakage plate heat exchanger according to claim 1, characterized in that: The first bevel gear (702) is meshingly connected with the second bevel gear (703), and the lower part of the second bevel gear (703) is fixedly connected with a screw rod (704).

5. The anti-internal leakage plate heat exchanger according to claim 4, characterized in that: The screw rod (704) is rotatably mounted inside the heat exchange plate (4), and the interior of the heat exchange plate (4) is hollow.

6. The anti-internal leakage plate heat exchanger according to claim 5, characterized in that: The screw rod (704) is externally threadedly connected with a screw tube (705), and support plates (706) are respectively fixedly connected to both sides of the screw tube (705), and cleaning impellers (708) are rotatably mounted inside the support plates (706) on both sides.

7. The anti-internal leakage plate heat exchanger according to claim 6, characterized in that: Both ends of the cleaning impeller (708) are respectively fixedly connected with driven gears (707), and a plurality of tooth plates (709) are fixedly installed inside the heat exchange plate (4), and each of the driven gears (707) is respectively meshedly connected with one of the tooth plates (709).

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