Carbon fiber corrosion-resistant vacuum pump convenient to dissipate heat

Abstract

The invention relates to the technical field of reciprocating pumps, and discloses a carbon fiber corrosion-resistant vacuum pump convenient to dissipate heat, comprising: a reciprocating pump body, the reciprocating pump body comprises a pump body, a crank-link mechanism, a piston, an air inlet valve and an exhaust valve, the pump body is internally provided with an air inlet cavity for accommodating the crank-link mechanism, and an air exchange cavity for accommodating the piston, the air inlet valve and the exhaust valve; the heat dissipation execution module comprises a first heat dissipation module and a second heat dissipation module. By arranging the heat dissipation execution module, the temperature sensing module and the control module, differential precise heat dissipation of different working areas of the vacuum pump is achieved; two heat dissipation modules in the heat dissipation execution module act on a ventilation cavity and a movable cavity correspondingly, and the heat dissipation intensity and direction can be adjusted according to actual requirements in cooperation with a heat dissipation fan and an air volume distribution mechanism. And the control module adaptively selects a proper heat dissipation mode according to the temperature data and a preset threshold value, so that the energy consumption is effectively reduced while the normal operation of the equipment is ensured.

Description

Technical Field

[0001] This invention relates to the field of reciprocating pump technology, and more specifically, to a carbon fiber corrosion-resistant vacuum pump that facilitates heat dissipation. Background Technology

[0002] Reciprocating vacuum pumps, as important fluid transport equipment, primarily rely on the reciprocating motion of a piston within the pump chamber to periodically change the volume of the working chamber, thereby completing the intake and discharge process of the medium under the coordinated action of the inlet and outlet valves. This type of pump has advantages such as high output pressure and strong self-priming capability, and is widely used in many industrial fields such as chemical, pharmaceutical, and food processing.

[0003] However, in actual operation, especially when handling media with a certain temperature for extended periods, the pump body generates significant heat due to frequent piston friction, severe valve plate impact, and the temperature rise of the media itself. This causes a sharp increase in pump body temperature, particularly in the air exchange chamber area. High temperatures not only accelerate the aging of seals and the failure of lubricating oil, but can also cause thermal deformation of the pump body in severe cases, affecting fitting accuracy and leading to decreased vacuum, reduced efficiency, and even equipment damage. Traditional cooling methods often use uniformly distributed heat dissipation fins with a single fan for overall cooling. This method struggles to efficiently and precisely distribute heat dissipation across areas with significant temperature differences on the pump body, often resulting in wasted cooling resources, insufficient heat dissipation in high-temperature areas, and high energy consumption and noise levels. Summary of the Invention

[0004] The purpose of this invention is to provide a carbon fiber corrosion-resistant vacuum pump that facilitates heat dissipation, thereby solving the aforementioned technical problems.

[0005] The present invention solves the above-mentioned technical problems through the following technical solutions: This invention provides a corrosion-resistant carbon fiber vacuum pump that facilitates heat dissipation, comprising: The reciprocating pump body includes a pump body, a crank-connecting rod mechanism, a piston, an intake valve, and an exhaust valve. The pump body is provided with an intake chamber for accommodating the crank-connecting rod mechanism, and an air exchange chamber for accommodating the piston, the intake valve, and the exhaust valve. The heat dissipation execution module includes a first heat dissipation module, a second heat dissipation module, a cooling fan, and an airflow distribution mechanism. The first heat dissipation module is disposed on the outside of the pump body at a position corresponding to the air exchange chamber, and the second heat dissipation module is disposed on the outside of the pump body at a position corresponding to the movable chamber. The cooling fan is connected to the first heat dissipation module. The airflow distribution mechanism is disposed between the cooling fan and the first heat dissipation module and has at least two working states: in the first working state, all the airflow generated by the cooling fan is directed to the first heat dissipation module; in the second working state, a portion of the airflow is diverted and directed to the second heat dissipation module. Temperature sensing module is used to acquire the temperature inside the active chamber and ventilation chamber in real time; The control module is connected to the temperature sensing module, the cooling fan and the airflow distribution mechanism by signal, and is configured to control the speed of the cooling fan and the working state of the airflow distribution mechanism according to the received temperature data, so as to achieve differentiated and precise heat dissipation for different working areas of the pump body.

[0006] Preferably, the first heat dissipation module includes four vertically arranged heat dissipation fins corresponding to the air exchange chamber of the pump body, and a mounting cover fixed to the top of the four heat dissipation fins. The heat dissipation fan is detachably connected to the mounting cover, and the air volume distribution mechanism is disposed inside the mounting cover.

[0007] Preferably, the second heat dissipation module includes heat dissipation fins two distributed on one side of the pump body's active cavity, and the heat dissipation fins two are arranged laterally.

[0008] Preferably, the air volume distribution mechanism includes a linear telescopic source, a telescopic air inlet shroud, and a blower head; the air inlet shroud is connected to the telescopic end of the linear telescopic source, and its opening faces the cooling fan; the blower head is located on the left side of the pump body and aligned with the second heat dissipation module, and is connected to the air inlet shroud through an air inlet pipe. The air inlet shroud is extended and retracted by the linear telescopic source to change its area of ​​airflow interception, thereby achieving airflow distribution.

[0009] Preferably, the linear telescopic source is an electric push rod, which is fixedly mounted on the pump body.

[0010] Preferably, the air inlet cover is made of rubber, and its telescopic posture adapts to the gap between the mounting cover and the pump body.

[0011] Preferably, the blowing head is flat, and its opening length is greater than the width of the second heat dissipation module.

[0012] Preferably, the temperature sensing module includes temperature sensors disposed in the active cavity and the ventilation cavity.

[0013] Preferably, the control module is configured to execute the following control method: When the temperature of the air exchange chamber is greater than or equal to the first threshold or the rate of temperature rise of the air exchange chamber exceeds the limit, the air volume distribution mechanism is in the first working state and the cooling fan is controlled to run at maximum power. When the temperature of the air exchange chamber is less than the first threshold and the temperature of the air exchange chamber is greater than the second threshold or the temperature of the active chamber is greater than the third threshold, the cooling fan is controlled to run at the first preset power, and the air volume distribution mechanism is controlled to continuously adjust between the first working state and the second working state. When the temperature of the air exchange chamber is less than the second threshold and the temperature of the active chamber is less than the third threshold, the air volume distribution mechanism is controlled to be in the second working state or the off state, and the cooling fan is controlled to operate in a reduced speed mode or intermittent mode.

[0014] Preferably, the continuous adjustment adopts a PID closed-loop control algorithm, with the air exchange chamber temperature as the controlled object and the second threshold as the set target, and its output is a control signal for the air volume distributor.

[0015] The beneficial effects of this invention are as follows: This invention achieves differentiated and precise heat dissipation for different working areas of the vacuum pump by setting up a heat dissipation execution module, a temperature sensing module, and a control module. The heat dissipation execution module has two heat dissipation units that act on the ventilation chamber and the moving chamber respectively, and together with the cooling fan and airflow distribution mechanism, the heat dissipation intensity and direction can be adjusted according to actual needs. The temperature sensing module monitors the temperature of each area in real time, providing accurate data to the control module. The control module then adaptively selects an appropriate heat dissipation mode based on the temperature data and preset thresholds, thereby effectively reducing energy consumption and noise while ensuring normal equipment operation, and improving the overall performance and reliability of the vacuum pump. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall appearance and structure of the present invention; Figure 2 This is a cross-sectional view of the pump body in this invention; Figure 3 This is a partial structural diagram of the pump body in this invention; Figure 4 This is a schematic diagram of the overall structure of the heat dissipation execution module in this invention; Figure 5 This is a schematic diagram of the heat dissipation execution module in this invention; Figure 6 This is a schematic diagram of the structure between the air inlet shroud and the blowing head in this invention; Figure 7 This is a diagram showing the relationships between the various modules in this invention.

[0017] In the diagram: 100, reciprocating pump body; 101, pump body; 102, crank-connecting rod mechanism; 103, piston; 104, intake valve; 105, exhaust valve; 106, moving chamber; 107, air exchange chamber; 200. Heat dissipation execution module; 201. Cooling fan; 202. Heat dissipation fin one; 203. Mounting cover; 204. Heat dissipation fin two; 205. Linear telescopic source; 206. Air inlet cover; 207. Blow head; 208. Air inlet pipe; 300. Temperature sensing module. Detailed Implementation

[0018] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, features described in some examples may be combined in other examples.

[0019] Please refer to Figures 1 to 3 A corrosion-resistant carbon fiber vacuum pump with easy heat dissipation includes: a reciprocating pump body 100, a heat dissipation execution module 200, a temperature sensing module 300, and a control module. The reciprocating pump body 100 includes a pump body 101, a crank-connecting rod mechanism 102, a piston 103, an inlet valve 104, and an exhaust valve 105. The pump body 101 is approximately L-shaped and is made of carbon fiber composite material, exhibiting high corrosion resistance. A movable chamber 106 is located on the left side inside the pump body 101, and the crank-connecting rod mechanism 102 is located within the movable chamber 106. A ventilation chamber 107 is located on the right side inside the pump body 101. The piston 103, inlet valve 104, and exhaust valve 105 are respectively located in preset positions within the ventilation chamber 107, and one end of the piston 103 is connected to the crank-connecting rod mechanism 102. When transporting liquid media, the crank-connecting rod mechanism 102, driven by an external drive source, can drive the piston 103 to reciprocate horizontally in the ventilation chamber 107, so that the intake valve 104 and the exhaust valve 105 open and close in an orderly manner, thereby realizing the continuous transport of liquid media in the ventilation chamber 107. Since this technology is a conventional technology in this field, the transport principle will not be described in detail here.

[0020] Please refer to Figures 3 to 7The heat dissipation module 200 includes a heat dissipation module one, a heat dissipation module two, a cooling fan 201, and an airflow distribution mechanism. Heat dissipation module one is located on the outside of the pump body 101, corresponding to the ventilation chamber 107. This module specifically includes four vertically arranged heat dissipation fins 202 distributed around the pump body 101 and mounting covers 203 fixed to the tops of the four fins. The four fins act on the periphery of the ventilation chamber 107, enabling rapid heat dissipation. Heat dissipation module two is located on the outside of the pump body 101, corresponding to the movable chamber 106. It specifically includes heat dissipation fins 204 fixed to the top left side of the pump body 101, used for heat dissipation of the movable chamber 106. The cooling fan 201 is located at the upper right side of the pump body 101 and is detachably connected to the mounting cover 203. The airflow distribution mechanism includes a linear telescopic source 205, a telescopic air inlet shroud 206, and a purge head 207. The linear telescopic source 205 is mounted on the pump body 101 and can be a miniature electric actuator. The air inlet shroud 206 is located inside the mounting cover 203, with one side connected to the telescopic end of the linear telescopic source 205. The air inlet shroud 206 is made of rubber, and its telescopic posture adapts to the gap between the mounting cover 203 and the pump body 101, ensuring effective interception of airflow. The opening of the air inlet shroud 206 faces the cooling fan 201. When the air inlet shroud is fully extended, it can intercept at least half of the airflow at the top of the corresponding side heat sink fins. The purge head 207 is located on the left side of the main body, with its opening facing the heat sink fins on the left side of the pump body 101. The purge head 207 is connected to the air inlet shroud 206 through an air inlet pipe 208. The purge head 207 is flat, and its opening length is greater than the width of the second heat dissipation module, ensuring effective coverage of the second heat sink fin 204.

[0021] The working process of the above-mentioned heat dissipation execution module 200 is as follows: According to the control module instructions, the linear telescopic source 205 drives the air inlet shroud 206 to expand or contract through its telescopic movement. When expanded, the top opening of the air inlet shroud 206 faces the cooling fan 201, intercepting some airflow. This airflow then flows through the air inlet pipe 208 to the blower head 207, and is finally blown out by the blower head 207 onto the second heat dissipation fin 204, achieving rapid heat dissipation around the active cavity 106. In actual use, the airflow intercepted by the air inlet shroud 206 is adjusted by controlling its expanded area, thus achieving heat dissipation regulation between the active cavity 106 and the ventilation cavity 107. When the air inlet shroud 206 is fully contracted, the airflow generated by the cooling fan 201 can directly act on the first heat dissipation fin 202, achieving maximum heat dissipation for the ventilation cavity 107. This differentiated heat dissipation strategy, through the linkage between the airflow distribution mechanism and the temperature sensing module 300, can improve the resource waste and localized overheating problems of traditional uniform heat dissipation methods, resulting in energy savings.

[0022] The temperature sensing module 300 may include multiple temperature sensors respectively located in the active cavity 106 and the ventilation cavity 107, for real-time monitoring of the temperature values ​​of the corresponding areas and uploading them to the control module.

[0023] The control module is connected to the temperature sensing module 300, the cooling fan 201 and the air volume distribution mechanism by signal, and is configured to control the speed of the cooling fan 201 and the working state of the air volume distribution mechanism according to the received temperature data, so as to achieve differentiated and precise heat dissipation for different working areas of the pump body 101.

[0024] The process of using the vacuum pump of this invention is as follows: S100: Initial Operation After the vacuum pump is started, the crank connecting rod mechanism 102, driven by an external drive source, can drive the piston 103 to reciprocate horizontally in the air exchange chamber 107, so that the intake valve 104 and the exhaust valve 105 open and close in an orderly manner, so as to realize the continuous delivery of liquid medium in the air exchange chamber 107.

[0025] S200: Real-time data acquisition During the operation of the vacuum pump, multiple temperature sensors in the temperature sensing module 300 continuously monitor the temperature in the active chamber 106 and the air exchange chamber 107 in real time, and transmit the acquired temperature values ​​to the control module.

[0026] S300: Data Preprocessing The control module reads temperature data at a fixed frequency (e.g., once per second) and filters the raw data (e.g., using moving average filtering) to eliminate noise interference and obtain a smooth and reliable temperature value T. v (ventilation chamber) and T h (Active cavity 106).

[0027] S400: Trend Analysis The control module calculates the rate of temperature change dT per unit time. v / d t and dT h / d t It is used to predict future temperature trends.

[0028] S500: Mode Determination and Execution The control module compares the processed data with the preset temperature threshold and selects the operating mode based on the highest priority principle.

[0029] S501: Determine if the conditions for Mode 1 (Full Cooling Mode) are met. Triggering condition: T v ≥T vertical-high (85°C) or dT v / dt The value is extremely high (indicating that the temperature is rising rapidly); Actions executed: The linear expansion source 205 is controlled to immediately retract the air intake shroud 206 completely, terminating all airflow to the active cavity 106; the cooling fan 201 is controlled to run at full speed with a 100% PWM duty cycle.

[0030] Objective: To concentrate all cooling airflow into the ventilation chamber 107, which requires the most heat dissipation, to achieve rapid forced cooling and prevent equipment from overheating and being damaged.

[0031] S502: If mode one is not met, then determine whether the conditions for mode two (balanced heat dissipation mode) are met. Triggering condition: T v <T vertical-high And (T) v >T vertical-target (75°C) or T h >T horizontal-high (65°C) Actions performed: Control the cooling fan 201 to run at a relatively high base speed (e.g., 70% PWM duty cycle); dynamically adjust the extent of the air intake shroud 206 using a PID closed-loop control algorithm; and adjust the air exchange chamber 107 temperature T based on the air exchange chamber temperature T. v For the controlled object, T vertical-target To set goals; Control logic: T v Raise and reduce the opening of the air inlet hood 206 (reduce airflow, prioritize cooling of the air exchange chamber 107); T v Decrease and T h Raise the height to increase the opening of the air inlet shroud 206 (to increase airflow and dissipate heat from the movable cavity 106).

[0032] S503: If none of the above modes are satisfied, then enter mode three (energy saving and noise reduction mode). Triggering condition: T v <T vertical-target (75°C) and T h <T horizontal-high (65°C).

[0033] Actions performed: Control the linear expansion source 205 to maintain the air intake shroud 206 at a minimum opening (e.g., 20%) or completely close it; control the cooling fan 201 to run at a reduced speed (e.g., 30%-40% PWM duty cycle) or switch to an intermittent working mode (e.g., run for 30 seconds, then stop for 2 minutes) to significantly reduce energy consumption and operating noise.

[0034] As can be seen from the above, the vacuum pump of the present invention has the following technical effects: By incorporating a heat dissipation execution module 200, a temperature sensing module 300, and a control module, differentiated and precise heat dissipation for different working areas of the vacuum pump is achieved. Specifically, the two heat dissipation modules in the heat dissipation execution module 200 act on the ventilation chamber 107 and the moving chamber 106 respectively. Combined with the cooling fan 201 and the airflow distribution mechanism, the heat dissipation intensity and direction can be adjusted according to actual needs. The temperature sensing module 300 monitors the temperature of each area in real time, providing accurate data to the control module. The control module then adaptively selects appropriate heat dissipation modes based on the temperature data and preset thresholds, including full-power cooling mode, balanced heat dissipation mode, and energy-saving noise reduction mode. This effectively reduces energy consumption and noise while ensuring normal equipment operation, thereby improving the overall performance and reliability of the vacuum pump.

[0035] In addition, compared to configuring a cooling fan 201 in each work area, it has lower operating costs, better meets actual usage needs, and has a more compact structure, avoiding the noise accumulation and increased energy consumption caused by multiple fans running at the same time, thus reducing maintenance costs.

[0036] The embodiments of the present invention have been described above, but the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention, all of which are within the protection scope of the present invention.

Claims

1. A carbon fiber corrosion-resistant vacuum pump with easy heat dissipation, characterized in that, include: The reciprocating pump body includes a pump body, a crank-connecting rod mechanism, a piston, an intake valve, and an exhaust valve. The pump body is provided with an intake chamber for accommodating the crank-connecting rod mechanism, and an air exchange chamber for accommodating the piston, the intake valve, and the exhaust valve. The heat dissipation execution module includes a first heat dissipation module, a second heat dissipation module, a cooling fan, and an airflow distribution mechanism. The first heat dissipation module is disposed on the outside of the pump body at a position corresponding to the air exchange chamber, and the second heat dissipation module is disposed on the outside of the pump body at a position corresponding to the movable chamber. The cooling fan is connected to the first heat dissipation module. The airflow distribution mechanism is disposed between the cooling fan and the first heat dissipation module and has at least two working states: in the first working state, all the airflow generated by the cooling fan is directed to the first heat dissipation module; in the second working state, a portion of the airflow is diverted and directed to the second heat dissipation module. The temperature sensing module is used to acquire the temperature inside the active chamber and the ventilation chamber in real time; The control module is connected to the temperature sensing module, the cooling fan and the airflow distribution mechanism by signal, and is configured to control the speed of the cooling fan and the working state of the airflow distribution mechanism according to the received temperature data, so as to achieve differentiated and precise heat dissipation for different working areas of the pump body.

2. The carbon fiber corrosion-resistant vacuum pump with easy heat dissipation according to claim 1, characterized in that, The first heat dissipation module includes four vertically arranged heat dissipation fins corresponding to the air exchange chamber of the pump body, and a mounting cover fixed to the top of the four heat dissipation fins. The heat dissipation fan is detachably connected to the mounting cover, and the air volume distribution mechanism is disposed inside the mounting cover.

3. The carbon fiber corrosion-resistant vacuum pump with easy heat dissipation according to claim 2, characterized in that, The second heat dissipation module includes heat dissipation fins two distributed on one side of the pump body's active cavity, the heat dissipation fins two being arranged laterally.

4. The carbon fiber corrosion-resistant vacuum pump with easy heat dissipation according to claim 3, characterized in that, The air volume distribution mechanism includes a linear telescopic source, a telescopic air inlet shroud, and a blower head; the air inlet shroud is connected to the telescopic end of the linear telescopic source, and its opening faces the cooling fan; the blower head is located on the left side of the pump body and aligned with the second heat dissipation module, and is connected to the air inlet shroud through an air inlet pipe. The air inlet shroud is extended and retracted by the linear telescopic source to change its area of ​​airflow interception, thereby achieving airflow distribution.

5. A carbon fiber corrosion-resistant vacuum pump with easy heat dissipation according to claim 4, characterized in that, The linear telescopic source is an electric push rod, which is fixedly mounted on the pump body.

6. A carbon fiber corrosion-resistant vacuum pump with easy heat dissipation according to claim 5, characterized in that, The air inlet cover is made of rubber, and its telescopic posture adapts to the gap between the mounting cover and the pump body.

7. A carbon fiber corrosion-resistant vacuum pump with easy heat dissipation according to claim 6, characterized in that, The blowing head is flat, and its opening length is greater than the width of the second heat dissipation module.

8. A carbon fiber corrosion-resistant vacuum pump with easy heat dissipation according to claim 1, characterized in that, The temperature sensing module includes temperature sensors located in the active cavity and the ventilation cavity.

9. A carbon fiber corrosion-resistant vacuum pump with easy heat dissipation according to claim 1, characterized in that, The control module is configured to execute the following control methods: When the temperature of the air exchange chamber is greater than or equal to the first threshold or the rate of temperature rise of the air exchange chamber exceeds the limit, the air volume distribution mechanism is controlled to be in the first working state and the cooling fan is controlled to run at maximum power. When the temperature of the air exchange chamber is less than the first threshold and the temperature of the air exchange chamber is greater than the second threshold or the temperature of the active chamber is greater than the third threshold, the cooling fan is controlled to run at the first preset power, and the air volume distribution mechanism is controlled to continuously adjust between the first working state and the second working state. When the temperature of the air exchange chamber is less than the second threshold and the temperature of the active chamber is less than the third threshold, the air volume distribution mechanism is controlled to be in the second working state or the off state, and the cooling fan is controlled to operate in a reduced speed mode or intermittent mode.

10. A carbon fiber corrosion-resistant vacuum pump with easy heat dissipation according to claim 9, characterized in that, The continuous adjustment adopts a PID closed-loop control algorithm, with the air exchange chamber temperature as the controlled object and the second threshold as the set target. Its output is a control signal for the air volume distributor.

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