Hydraulic baling press with partition heat exchanger

Abstract

The utility model provides a hydraulic packing machine is with partition wall type heat exchanger relates to heat exchanger technical field, the utility model discloses a heat dissipation component, the heat dissipation component includes: exchange cavity, wherein the cooling liquid passes through the outside air cooling heat exchanger and enters exchange cavity, and the cooling liquid in exchange cavity is transported to the outside cold heat exchanger circulation flow through circulating pump, flows the passageway, flow passageway passes through exchange cavity, and hydraulic oil enters flow passageway and is cooled and is cooled down by the cooling liquid in exchange cavity, flow passageway separates hydraulic oil and the heat dissipation liquid in exchange cavity to become partition wall type heat exchanger. Screening component, screening component is located flow passageway liquid input end, and the brush head in screening component is inserted in flow passageway input port, and screening component can filter the hydraulic oil of entering flow passageway, avoids the sundries in hydraulic oil to adhere in flow passageway and influences heat dissipation.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to a partition heat exchanger for a hydraulic baler. Background Technology

[0002] A hydraulic baler is a device that uses a hydraulic system to drive actuators to compress and package materials. Its core working process is as follows: the material to be packaged (such as a can) is placed in the compression zone inside the frame; the hydraulic module outputs high-pressure hydraulic oil to drive the baling hydraulic cylinder, causing the pressure plate to move up and down along the compression zone, thus compressing and shaping the material. During this process, the hydraulic oil serves as the power transmission medium, circulating at high speed through the hydraulic lines, hydraulic cylinder, and related components.

[0003] Due to the long-term operation of the hydraulic system, the following problems may occur, which can easily cause the heat exchanger to become clogged: metal shavings are generated due to the wear of internal components of the system (such as the friction between the piston and cylinder in the hydraulic cylinder, wear of the inner wall of the pipeline, etc.); in addition, the hydraulic oil may produce sludge and other impurities due to oxidation and aging after long-term use, and these impurities will enter the cooling system along with the hydraulic oil.

[0004] When debris enters the flow channel directly with the hydraulic oil, it tends to adhere to the inner wall of the channel due to its narrow inner diameter (such as copper pipe), which reduces the heat exchange area between the hydraulic oil and coolant, slows down the flow rate, and significantly reduces the cooling efficiency. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a partitioned heat exchanger for hydraulic balers.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a partition wall heat exchanger for a hydraulic baler, comprising a heat dissipation component, wherein the heat dissipation component includes:

[0007] The coolant enters the heat exchange chamber after passing through the external air-cooled heat exchanger, and the coolant inside the heat exchange chamber is transported to the external cold heat exchanger for circulation by a circulating pump.

[0008] The flow channel passes through the exchange chamber, and the hydraulic oil enters the flow channel and is cooled down by the coolant inside the exchange chamber. The flow channel separates the hydraulic oil and the heat exchange fluid in the exchange chamber to form a partitioned heat exchanger.

[0009] The screening component is located at the liquid inlet end of the flow channel. The brush head in the screening component is inserted into the inlet port of the flow channel. Hydraulic oil is allowed to pass through the gaps of the multi-bristled brush head structure, and impurities inside the hydraulic oil are blocked outside the gaps of the multi-bristled brush head structure.

[0010] The effects achieved by the above components are as follows: The vertical hydraulic baler includes a frame, with a vertically installed baling hydraulic cylinder at the top of the frame. The baling hydraulic cylinder is vertically positioned with its output facing downwards. A pressure plate is fixedly connected to the output end of the baling hydraulic cylinder, and the pressure plate slides inside the frame. The can to be baled is placed in the compression area inside the frame, and then the hydraulic module drives the output end of the baling hydraulic cylinder to drive the pressure plate. The pressure plate moves downwards along the compression area, thereby compressing the can. When the compression reaches its limit, the baling hydraulic cylinder lifts the pressure plate and stops compressing the can. Then, the door lock (not shown in the figure) is opened, the blocking door is opened, and the compressed can can be taken out of the frame. The hydraulic oil output by the hydraulic module enters the flow channel, and the coolant enters the exchange chamber. The coolant and the flow channel exchange heat, thereby cooling the hydraulic oil. The screening component can filter the hydraulic oil entering the flow channel to prevent impurities in the hydraulic oil from adhering to the flow channel and affecting heat dissipation.

[0011] Preferably, the exchange chamber is a tube, the flow channel is a copper tube, the copper tube passes through one end of the tube and extends out of the other end of the tube, and a fixing plate is fixedly connected to the surface of the copper tube, and the fixing plate is fixedly connected to the tube port.

[0012] The effects achieved by the above components are as follows: the copper tube and the fixed plate cooperate with each other, the copper tube extends out of the fixed plate, and debris is not easily stuck at the end of the copper tube. The fixed plate fixes the copper tube to the tube cylinder, which can prevent the copper tube and the tube cylinder from colliding directly and prevent the copper tube from bending and deforming. The hydraulic oil enters the copper tube and is separated from the coolant in the tube cylinder by the copper tube, so that the coolant can cool the hydraulic oil in the copper tube.

[0013] Preferably, a coolant module is provided on the side of the tube, and the coolant module consists of two vertically arranged circular tubes, both of which are connected to the tube.

[0014] The effect achieved by the above components is that after the coolant undergoes heat exchange in the external heat exchanger, it enters the tube from the lower cooling module's circular tube. Since the coolant flows from bottom to top, it can ensure a low flow rate and improve the heat exchange effect of the hydraulic oil.

[0015] Preferably, the surface of the fixed plate is provided with a receiving cylinder, and it also includes a top plate, a bottom plate, and a pull rod. The pull rod passes through the top plate and the fixed plate from top to bottom, and the bottom end of the pull rod is fixedly connected to the bottom plate.

[0016] The effect achieved by the above components is that the top plate, the receiving groove and the tube are assembled into a complete cylindrical structure. The bolts on the surface of the pull rod can be turned to disassemble the top plate, the receiving groove and the tube, which facilitates internal cleaning.

[0017] Preferably, the surfaces of the top plate, bottom plate, and fixed plate are all provided with annular grooves for receiving the cylinder to be inserted, wherein a sealing gasket is provided inside the annular groove.

[0018] The aforementioned components achieve the following effects: the annular groove is used to position the receiving cylinder, and the sealing gasket can seal the connection of the receiving cylinder.

[0019] Preferably, the surfaces of the top plate and the bottom receiving cylinder are each provided with an oil module, which is a pipe, wherein two pipes are respectively connected to the two receiving cylinders.

[0020] The effect achieved by the above components is as follows: the heat dissipation components are connected in series through two pipes of two oil modules and hydraulic lines, wherein the hydraulic oil enters the receiving cylinder from the lower oil module pipe, and then enters the copper pipe and flows from the copper pipe into the receiving cylinder.

[0021] Preferably, the bottom receiving cylinder is provided with a cleaning component, which includes a float plate. A spring is fixedly connected between the float plate and the bottom plate. A connecting rod is fixedly connected to the upper end of the float plate at the position corresponding to the copper tube. A brush head is fixedly connected to the end of the connecting rod and is inserted into the copper tube.

[0022] The effect achieved by the above components is as follows: Under normal working conditions, hydraulic oil enters the receiving cylinder from below and enters the copper tube along the gap between the copper tube and the brush head. Larger debris is blocked outside the copper tube by the brush head, preventing debris from entering the copper tube and affecting heat dissipation. When it is necessary to clean the debris blocking the brush head, freshly opened hydraulic oil is introduced from the receiving cylinder above for reverse flushing. The hydraulic oil reverse flushes the brush head at the copper tube port, washing away the debris on the surface of the brush head.

[0023] Preferably, the copper tube has brush teeth inside, and the brush head is inserted between the brush teeth.

[0024] The effect achieved by the above components is that when the brush head slides at the copper tube end, the brush teeth can slide on the brush head, thereby cleaning the debris adhering to the surface of the brush head. At the same time, the movement of the brush teeth relative to the brush head can cause the brush head to vibrate and clean the debris on the surface of the brush head.

[0025] Preferably, a pull rope is fixedly connected to the bottom end of the float, a cleaning pipe is connected to the side of the receiving cylinder, a core rod is threadedly connected to the end of the cleaning pipe, and the core rod and the pull rope are fixedly connected.

[0026] The effect achieved by the above components is as follows: First, the hydraulic line is shut off and the hydraulic oil in the hydraulic line is drained. The cleaning tube is pulled out by rotating the core rod. Then, the core rod is pulled, which pulls the pull rope. The pull rope pulls the float plate, which squeezes the spring downward, thereby pulling the brush head out of the copper tube. When the pull rope is released, the spring force allows the brush head to be inserted back into the copper tube (it should be noted that the upper part of the brush head has a conical structure to facilitate the insertion of the brush head into the copper tube).

[0027] Preferably, the core rod and the cleaning pipe are sealed, a pull ring is fixedly connected to one side of the core rod, and a float is fixedly connected to the bottom of the float plate.

[0028] The aforementioned components achieve the following effects: the float allows the float plate to move upwards, and the pull ring assists in removing the core rod.

[0029] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0030] In this invention, the hydraulic oil output from the hydraulic module enters the flow channel, and the coolant enters the exchange chamber. The coolant and the flow channel exchange heat, thereby cooling the hydraulic oil. The screening component can filter the hydraulic oil entering the flow channel to prevent impurities in the hydraulic oil from adhering to the flow channel and affecting heat dissipation. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of a vertical hydraulic baler;

[0032] Figure 2 This utility model provides a structural schematic diagram of a partition wall heat exchanger for a hydraulic baler;

[0033] Figure 3 This utility model Figure 2 Partial disassembly diagram;

[0034] Figure 4 This utility model provides a schematic diagram of the internal part of the tube cylinder in a partition wall heat exchanger for a hydraulic baler;

[0035] Figure 5 This utility model provides a schematic diagram of the cleaning component in a partition wall heat exchanger for a hydraulic baler;

[0036] Figure 6 This invention provides a schematic diagram of the bottom cross-section of the copper tube in a partitioned heat exchanger for a hydraulic baler.

[0037] Legend: 1. Frame; 2. Blocking door; 3. Packing hydraulic cylinder; 4. Pressure plate; 5. Hydraulic module; 6. Heat dissipation component; 61. Tube; 62. Receiving cylinder; 63. Top plate; 64. Oil module; 65. Coolant module; 66. Pull rod; 67. Fixing plate; 68. Copper pipe; 69. Cleaning component; 691. Cleaning pipe; 692. Core rod; 693. Pull ring; 694. Pull rope; 695. Spring; 696. Float plate; 697. Float; 698. Connecting rod; 699. Brush head; 610. Base plate; 7. Brush teeth. Detailed Implementation

[0038] A hydraulic baler uses a partition-type heat exchanger, including a heat dissipation component 6. The heat dissipation component 6 includes: an exchange chamber, in which coolant enters after passing through an external air-cooled heat exchanger, and the coolant inside the exchange chamber is circulated to the external cold heat exchanger by a circulating pump; a flow channel passing through the exchange chamber, through which hydraulic oil enters and is cooled by the coolant inside the exchange chamber; and a screening component located at the liquid inlet end of the flow channel, with brush heads 699 inserted into the inlet port of the flow channel. Hydraulic oil passes through the gaps in the structure of the multi-bristled brush heads 699, and impurities inside the hydraulic oil are blocked outside the gaps in the structure of the multi-bristled brush heads 699. The vertical hydraulic baler includes... The frame 1 has a vertically mounted packaging hydraulic cylinder 3 installed on its upper end. The packaging hydraulic cylinder 3 is vertically positioned with its output facing downwards. A pressure plate 4 is fixedly connected to the output end of the packaging hydraulic cylinder 3. The pressure plate 4 slides inside the frame 1. The can to be packaged is placed in the compression area inside the frame 1. Then, the hydraulic module 5 drives the output end of the packaging hydraulic cylinder 3 to drive the pressure plate 4. The pressure plate 4 moves downwards along the compression area, thereby compressing the can. When the compression reaches its limit, the packaging hydraulic cylinder 3 lifts the pressure plate 4 and rises, no longer compressing the can. Then, the door lock (not shown in the figure) is opened, and the blocking door 2 is opened, allowing the compressed can to be taken out of the frame 1.

[0039] Example 1, such as Figure 1-6As shown, the exchange chamber is a tube 61, and the flow channel is a copper pipe 68. The copper pipe 68 passes through one end of the tube 61 and extends out of the other end. A fixing plate 67 is fixedly connected to the surface of the copper pipe 68. The fixing plate 67 is fixedly connected to the end of the tube 61. The copper pipe 68 and the fixing plate 67 cooperate with each other. The copper pipe 68 extends out of the fixing plate 67, making it difficult for debris to get stuck at the end of the copper pipe 68. The fixing plate 67 fixes the copper pipe 68 to the tube 61, which can prevent the copper pipe 68 from colliding directly with the tube 61 and prevent the copper pipe 68 from bending and deforming, allowing hydraulic oil to enter. In the copper pipe 68, the hydraulic oil and the coolant in the tube 61 are separated, allowing the coolant to cool the hydraulic oil in the copper pipe 68. A coolant module 65 is provided on the side of the tube 61. The coolant module 65 consists of two vertically arranged circular pipes, both connected to the tube 61. After heat exchange in an external heat exchanger, the coolant enters the tube 61 from the lower cooling module circular pipe. Because the coolant flows from bottom to top, a low flow rate is maintained, improving the heat exchange effect of the hydraulic oil. The surface of the fixed plate 67 is provided with a container... The receiving cylinder 62 also includes a top plate 63, a bottom plate 610, and a pull rod 66. The pull rod 66 passes through the top plate 63 and the fixed plate 67 from top to bottom, and its bottom end is fixedly connected to the bottom plate 610. The top plate 63, the receiving groove, and the tube 61 are assembled into a complete cylindrical structure by the pull rod 66. The bolts on the surface of the pull rod 66 can be turned to disassemble the top plate 63, the receiving cylinder 62, and the tube 61 for easy internal cleaning. The surfaces of the top plate 63, the bottom plate 610, and the fixed plate 67 are all provided with annular grooves for the receiving cylinder 62 to fit into. A sealing gasket is installed inside the annular groove to position the receiving cylinder 62. The sealing gasket can seal the connection of the receiving cylinder 62. Oil modules 64 are provided on the surface of the top plate 63 and the bottom receiving cylinder 62. The oil modules 64 are pipes, and two pipes are connected to the two receiving cylinders 62 respectively. The heat dissipation component 6 is connected in series with the two pipes of the two oil modules 64 and the hydraulic pipeline. The hydraulic oil enters the receiving cylinder 62 from the lower oil module 64 pipe, and then enters the copper pipe 68 and flows from the copper pipe 68 back to the receiving cylinder 62.

[0040] The bottom receiving cylinder 62 is equipped with a cleaning component 69, which includes a float plate 696. A spring 695 is fixedly connected between the float plate 696 and the bottom plate 610. A connecting rod 698 is fixedly connected to the upper end of the float plate 696 at the position corresponding to the copper tube 68. A brush head 699 is fixedly connected to the end of the connecting rod 698. The brush head 699 is inserted into the copper tube 68. In normal operation, hydraulic oil enters the receiving cylinder 62 from below and flows into the copper tube 68 through the gap between the copper tube 68 and the brush head 699. Larger debris is blocked by the brush head 699. To prevent debris from entering the copper tube 68 and affecting heat dissipation, the brush head 699 is cleaned of blockages. When cleaning is needed, freshly opened hydraulic oil is introduced from the upper receiving cylinder 62 for reverse flushing. This reverse flushing of the brush head 699 at the copper tube 68 port removes debris. The copper tube 68 has internal brush teeth 7, with the brush head 699 inserted between them. As the brush head 699 slides at the copper tube 68 port, the brush teeth 7 slide on it, further cleaning the debris adhering to its surface. During the movement of the brush head 699, the brush head 699 vibrates to clean debris from its surface. A pull rope 694 is fixedly connected to the bottom of the float 696. A cleaning tube 691 is connected to the side of the receiving cylinder 62. A core rod 692 is threadedly connected to the end of the cleaning tube 691. The core rod 692 and the pull rope 694 are fixedly connected. First, the hydraulic line is closed and the hydraulic oil in the hydraulic line is drained. The cleaning tube 691 is pulled out by rotating the core rod 692. Then, the core rod 692 is pulled, which in turn pulls the pull rope 694, which in turn pulls the float 696. The float 696 presses down on the spring 695, thereby pulling the brush head 699 out of the copper tube 68. When the pull rope 694 is released, the elastic force of the spring 695 allows the brush head 699 to be reinserted into the copper tube 68 (it should be noted that the upper end of the brush head 699 has a conical structure to facilitate the insertion of the brush head 699 into the copper tube 68). The core rod 692 and the cleaning tube 691 are sealed. A pull ring 693 is fixedly connected to one side of the core rod 692. A float 697 is fixedly connected to the lower part of the float 696. The function of the float 697 is to allow the float 696 to move upward. The pull ring 693 assists in removing the core rod 692.

[0041] Working principle: This partition wall heat exchanger cools the hydraulic oil through the interaction of hydraulic oil and coolant. Simultaneously, a screening and cleaning mechanism prevents impurities from clogging the system, ensuring efficient heat exchange. Hydraulic oil enters the heat exchanger's flow channel and exchanges heat with the coolant in the exchange chamber through the partition wall (copper tube 68). The cooled hydraulic oil then flows back to the hydraulic system. The coolant circulates between the external air-cooled heat exchanger and the exchange chamber, continuously carrying away heat from the hydraulic oil. The screening component intercepts impurities in the hydraulic oil, and the cleaning component 69 periodically removes impurities to prevent channel blockage.

[0042] The high-temperature hydraulic oil output from the hydraulic module 5 of the hydraulic baler enters the bottom receiving cylinder 62 through the oil module 64 (pipeline). The hydraulic oil needs to pass through the screening component (the gap between the brush head 699 and the copper tube 68) into the copper tube 68 (flow channel). During its flow in the copper tube 68, it completes heat exchange with the coolant in the tube cylinder 61 (exchange chamber). The cooled hydraulic oil flows out from the other end of the copper tube 68 and enters the top receiving cylinder 62. Finally, it flows back to the hydraulic system through the top oil module 64 to drive the baling hydraulic cylinder 3.

[0043] The coolant is first cooled to a set temperature by an external air-cooled heat exchanger. It then enters the interior (exchange chamber) of the tube 61 through a coolant module 65 (circular tube) located below the side of the tube 61. The coolant flows slowly upwards along the interior of the tube 61 (the low flow rate design extends the heat exchange time), fully absorbing heat from the hydraulic oil in the copper tube 68. It then flows out from the coolant module 65 above the side of the tube 61 and is returned to the external air-cooled heat exchanger by a circulation pump for recooling, forming a closed loop. The copper tube 68 acts as a "wall" to physically separate the hydraulic oil and coolant (achieving "wall-type heat exchange"). When the high-temperature hydraulic oil flows within the copper tube 68, heat is transferred through the wall of the copper tube 68 to the low-temperature coolant in the tube 61. The coolant absorbs heat, its temperature rises, and it circulates to the external air-cooled heat exchanger to release heat. Meanwhile, the hydraulic oil in the copper tube 68 cools down as heat is carried away, ensuring that the temperature of the hydraulic oil returning to the hydraulic system meets the operating requirements (avoiding reduced hydraulic system efficiency or component damage due to excessively high oil temperature).

[0044] Impurities such as metal shavings and sludge in the hydraulic oil are intercepted by the screening component before entering the copper pipe 68. The brush head 699 in the bottom receiving cylinder 62 is inserted into the input end of the copper pipe 68. The brush head 699 has a multi-bristle structure, and its gaps only allow hydraulic oil to pass through. Impurities, because their size is larger than the gaps, are blocked on the outside of the brush head 699 (inside the bottom receiving cylinder 62), preventing impurities from entering the copper pipe 68 and adhering to the pipe wall (preventing the inner diameter of the copper pipe 68 from becoming thinner and the flow rate from slowing down, ensuring the heat exchange area and efficiency). When too many impurities adhere to the surface of the brush head 699, causing the hydraulic oil flow rate to decrease, it can be cleaned in the following two ways: 1. Close the normal hydraulic oil passage and introduce freshly opened clean hydraulic oil from the top oil module 64. The hydraulic oil flows in the opposite direction along the copper pipe 68 to the bottom receiving cylinder 62, flushing the surface of the brush head 699 and flushing the attached impurities into the bottom of the bottom receiving cylinder 62. After cleaning, the oil containing impurities can be discharged. 2. If the backwash is incomplete, the cleaning component 69 can be operated: First, close the hydraulic line and drain the internal hydraulic oil. Rotate the core rod 692 at the end of the cleaning pipe 691 to loosen it. Pull the core rod 692 through the pull ring 693. The core rod 692 pulls the float 696 downward through the pull rope 694. The float 696 compresses the spring 695, which drives the connecting rod 698 and the brush head 699 to be pulled out of the copper pipe 68. After releasing the pull ring 693, the elasticity of the spring 695 and the buoyancy of the float 697 together push the float 696 upward to reset. The brush head 699 is reinserted into the copper pipe 68 (the top of the brush head 699 has a conical structure for easy and precise insertion). During this process, the insertion and removal of the brush head 699 inside the copper tube 68 will cause relative sliding with the brush teeth 7 inside the copper tube 68. The brush teeth 7 can scrape away stubborn impurities remaining on the surface of the brush head 699, and at the same time vibrate the brush head 699 to dislodge small impurities, ensuring that the gaps of the brush head 699 are unobstructed.

[0045] The fixed plate 67 is connected to the top plate 63 and the bottom plate 610 via the tie rod 66, fixing the copper tube 68 inside the tube sleeve 61 to prevent the copper tube 68 from colliding and deforming with the tube sleeve 61; the sealing gasket in the annular groove can prevent hydraulic oil or coolant from leaking from the connection. The bolts on the surface of the tie rod 66 can be loosened to disassemble the top plate 63, the receiving cylinder 62 and the tube sleeve 61, facilitating regular deep cleaning or component replacement of the internal copper tube 68, brush head 699 and tube sleeve 61.

[0046] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

Claims

1. A partition wall heat exchanger for a hydraulic baler, characterized in that: Includes a heat dissipation component (6), said heat dissipation component (6) comprising: The coolant enters the heat exchange chamber after passing through the external air-cooled heat exchanger, and the coolant inside the heat exchange chamber is transported to the external cold heat exchanger for circulation by a circulating pump. The flow channel passes through the exchange chamber, and the hydraulic oil enters the flow channel and is cooled down by the coolant inside the exchange chamber; The screening component is located at the liquid inlet end of the flow channel. The brush head (699) in the screening component is inserted into the inlet port of the flow channel. Hydraulic oil is allowed to pass through the gaps in the structure of the multi-bristled brush head (699). Impurities inside the hydraulic oil are blocked outside the gaps in the structure of the multi-bristled brush head (699).

2. The indirect heat exchanger for a hydraulic baler according to claim 1, characterized in that: The exchange chamber is a tube (61), and the flow channel is a copper tube (68). The copper tube (68) passes through one end of the tube (61) and extends out to the other end of the tube (61). A fixing plate (67) is fixedly connected to the surface of the copper tube (68), and the fixing plate (67) and the port of the tube (61) are fixedly connected.

3. The indirect heat exchanger for a hydraulic baler according to claim 2, characterized in that: A coolant module (65) is provided on the side of the tube (61). The coolant module (65) consists of two vertically arranged round tubes, both of which are connected to the tube (61).

4. The indirect heat exchanger for a hydraulic baler according to claim 2, characterized in that: The surface of the fixed plate (67) is provided with a receiving cylinder (62), and also includes a top plate (63), a bottom plate (610), and a pull rod (66). The pull rod (66) passes through the top plate (63) and the fixed plate (67) from top to bottom, and the bottom end of the pull rod (66) is fixedly connected to the bottom plate (610).

5. The indirect heat exchanger for a hydraulic baler according to claim 4, characterized in that: The surfaces of the top plate (63), bottom plate (610) and fixed plate (67) are all provided with annular grooves for receiving cylinders (62) to be inserted, and a sealing gasket is provided inside the annular grooves.

6. The indirect heat exchanger for a hydraulic baler according to claim 5, characterized in that: The surfaces of the top plate (63) and the bottom container (62) are provided with oil modules (64), which are pipes, and two pipes are respectively connected to the two containers (62).

7. The indirect heat exchanger for a hydraulic baler according to claim 6, characterized in that: The bottom receiving cylinder (62) is provided with a cleaning component (69). The cleaning component (69) includes a float plate (696). A spring (695) is fixedly connected between the float plate (696) and the bottom plate (610). A connecting rod (698) is fixedly connected to the upper end of the float plate (696) at the position corresponding to the copper tube (68). A brush head (699) is fixedly connected to the end of the connecting rod (698). The brush head (699) is inserted into the copper tube (68).

8. The indirect heat exchanger for a hydraulic baler according to claim 7, characterized in that: The copper tube (68) is provided with brush teeth (7) inside, and the brush head (699) is inserted between the brush teeth (7).

9. The indirect heat exchanger for a hydraulic baler according to claim 8, characterized in that: The bottom end of the float (696) is fixedly connected to a pull rope (694), the side of the receiving cylinder (62) is connected to a cleaning pipe (691), the end of the cleaning pipe (691) is threadedly connected to a core rod (692), and the core rod (692) and the pull rope (694) are fixedly connected.

10. The indirect heat exchanger for a hydraulic baler according to claim 9, characterized in that: The core rod (692) and the cleaning pipe (691) are sealed together. A pull ring (693) is fixedly connected to one side of the core rod (692), and a float (697) is fixedly connected to the bottom of the float plate (696).

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