TCU with novel heating mode for pulsating vacuum

Abstract

The invention relates to a TCU (transmission control unit) with a novel heating mode for pulsating vacuum, which belongs to the field of pulsating vacuum and comprises a pulsating vacuum sterilizer, a sealing door is fixedly mounted on the pulsating vacuum sterilizer, a locking rudder is mounted on the sealing door, and a control panel and the TCU with the novel heating mode are fixedly mounted on the pulsating vacuum sterilizer. According to the TCU with the novel heating mode for pulsating vacuum, the vacuum bin is heated through an alternating magnetic field generated when current passes through the induction coil, the heating power is controlled through the high-frequency power source, so that the temperature rise of the vacuum bin is precisely controlled, the heating efficiency is improved by 60%-75% compared with a traditional resistor heating efficiency, and the energy consumption is reduced. Compared with a traditional electric heating mode, the temperature uniformity and stability in the vacuum bin can be guaranteed, the consistency and the qualified rate of products can be improved, the consumed electric energy is less, non-contact heating is adopted, and the problems of oxidation, corrosion and the like possibly caused by long-time high-temperature use of a heating element in a traditional heating mode are solved.

Description

Technical Field

[0001] The invention relates to the technical field of pulsating vacuum, in particular to a TCU with a novel heating mode for pulsating vacuum. Background Art

[0002] Pulsating vacuum technology is an advanced vacuum processing technology. It is mainly used in many industries such as medical, food, and chemical industry. Its core lies in achieving efficient sterilization, drying, evaporation and other process by periodically changing the vacuum degree. This technology can improve production efficiency while ensuring product quality, and can effectively reduce energy consumption and environmental impact. Pulsating vacuum sterilizer is the most common application equipment in the medical industry. It uses a combination of high-temperature saturated steam and pulsating vacuum for sterilization. During the sterilization process, the air in the sterilization chamber is first extracted by a vacuum pump, and then steam and vacuum are injected alternately for many times to allow the steam to fully penetrate into every corner of the medical device. For complex surgical instrument sets, pulsating vacuum sterilization can ensure that the internal channels, gaps and other hard-to-reach parts of the instrument can meet the sterilization requirements, and the sterilization effect can reach more than 99.99%.

[0003] In the current existing technology, pulsating vacuum adopts steam secondary heat exchange heating mode or heating element heating mode. The steam secondary heat exchange heating mode uses steam as a heat source, and transfers the heat of the steam to another medium, such as water or oil, through a secondary heat exchange system, which then heats the pulsating vacuum system. Secondary heat exchange will cause heat energy loss, resulting in low conversion efficiency, and the heating element heating mode uses a heating tube to convert electrical energy into thermal energy, which not only consumes a large amount of electrical energy, but also has inaccurate temperature control. Therefore, a TCU with a new heating mode for pulsating vacuum is proposed to solve the above problems. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a TCU with a new heating mode for pulsating vacuum, which has the advantages of precise temperature control and low energy consumption, and solves the problem that pulsating vacuum adopts a steam secondary heat exchange heating mode or a heating element heating mode. The steam secondary heat exchange heating mode uses steam as a heat source, and transfers the heat of the steam to another medium, such as water or oil, through a secondary heat exchange system, which then heats the pulsating vacuum system. The secondary heat exchange will cause heat energy loss, resulting in low conversion efficiency. The heating element heating mode uses a heating tube to convert electrical energy into thermal energy, which not only consumes a large amount of electrical energy but also has the problem of inaccurate temperature control.

[0005] To achieve the above object, the present invention provides the following technical solutions: a TCU with a novel heating mode for pulsating vacuum, comprising a pulsating vacuum sterilizer, a sealing door fixedly mounted on the pulsating vacuum sterilizer, a locking hand steering mounted on the sealing door, a control panel and a TCU with a novel heating mode fixedly mounted on the pulsating vacuum sterilizer;

[0006] A vacuum pump, a vacuum chamber, an induction coil, a high-frequency power supply and a cooling device are installed inside the pulsating vacuum sterilizer. The induction coil is fixedly installed on the inner wall of the vacuum chamber. One end of the vacuum pump passes through and extends into the interior of the vacuum chamber. The TCU of the new heating mode includes a high-precision temperature sensor, a signal conditioning feedback circuit and a central controller. The high-precision temperature sensor is installed inside the vacuum chamber. The signal conditioning and feedback circuit is installed inside the pulsating vacuum sterilizer. The control panel includes a touch display, a pressure gauge, a temperature gauge, an indicator panel light and an on / off switch.

[0007] Preferably, the signal conditioning feedback circuit includes an amplifier, a filter and an analog-to-digital converter, and the control panel adopts a programmable logic controller and a high-efficiency recording and storage module.

[0008] Preferably, the induction coil is a spiral structure, the frequency range of the high-frequency power supply is 10kHz-100kHz, and the accuracy of the high-precision temperature sensor is between ±0.5-±1 degrees Celsius.

[0009] Preferably, the cooling device comprises a heat dissipation fan and a heat dissipation grid plate, the heat dissipation fan is fixedly installed inside the pulsation vacuum sterilizer, and the heat dissipation grid plate is fixedly installed in embedded grooves opened on the left and right sides of the pulsation vacuum sterilizer.

[0010] Another technical problem to be solved by the present invention is to provide a TCU system with a novel heating mode for pulsating vacuum, comprising the following steps:

[0011] S1 puts the equipment into the vacuum chamber and closes the sealing door, rotates and locks the hand rudder and locks the sealing door;

[0012] S2 presses the on / off switch to start the vacuum pump to evacuate the interior of the vacuum chamber;

[0013] S3 multi-stage heating control;

[0014] S3.1 starts the electromagnetic induction heating mode through the touch display and sets the target temperature to 130 degrees Celsius, so that the high-frequency power supply starts the high-power gear, and uses the alternating magnetic field generated by the current passing through the induction coil to quickly heat the vacuum chamber and raise its temperature to 122-125 degrees Celsius;

[0015] S3.2 Then the real-time temperature information fed back by the temperature sensor triggers the high-frequency power supply to gradually adjust the heating power, so that the temperature rises slowly and stabilizes at 129-131 degrees Celsius;

[0016] S3.3 When the temperature reaches the preset target, the high-frequency power supply adopts a low-power maintenance mode to control the temperature inside the vacuum chamber to remain stable for a long time, thereby continuously disinfecting the equipment;

[0017] After S4 completes the disinfection, the multi-stage heating is turned off and the cooling device is started. The cooling fan in the cooling device continuously operates to quickly cool down the vacuum chamber until the vacuum chamber reaches a stable temperature of 30-40 degrees Celsius.

[0018] Compared with the prior art, the present invention provides a TCU with a novel heating mode for pulsating vacuum, which has the following beneficial effects:

[0019] 1. The pulsating vacuum TCU with a new heating mode adopts an electromagnetic induction heating mode, and an induction coil is arranged on the outer wall of the vacuum chamber. The alternating magnetic field generated by the current passing through the induction coil is used to heat the vacuum chamber, and the heating power is controlled by a high-frequency power supply, thereby achieving fine control of the vacuum chamber temperature rise. Compared with traditional resistance heating, the efficiency is increased by 60%-75%, and the temperature uniformity and stability in the vacuum chamber can be guaranteed, which is conducive to improving the consistency and qualified rate of products.

[0020] 2. The pulsating vacuum TCU with a new heating mode adopts a spiral induction coil, which can make the magnetic field act more concentratedly on the heated object, reduce the leakage of the magnetic field and energy loss, and consume less electricity than traditional electric heating. In addition, it adopts non-contact heating, which avoids the problems of oxidation and corrosion caused by long-term high-temperature use of heating elements in traditional heating methods, and reduces the equipment downtime and maintenance time and cost caused by damage to the heating elements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a TCU with a novel heating mode for pulsating vacuum proposed by the present invention;

[0022] Figure 2 A schematic diagram of a TCU system with a novel heating mode for pulsating vacuum proposed in the present invention.

[0023] In the picture: 1. Pulsating vacuum sterilizer; 2. Control panel; 3. Sealed door; 4. Locking hand steering. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention and the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figures 1 to 2 In this embodiment, a pulsating vacuum TCU with a new heating mode includes a pulsating vacuum sterilizer 1, a sealing door 3 is fixedly installed on the pulsating vacuum sterilizer 1, a locking hand steering 4 is installed on the sealing door, and a control panel 2 and a TCU with a new heating mode are fixedly installed on the pulsating vacuum sterilizer 1.

[0026] A vacuum pump, a vacuum chamber, an induction coil, a high-frequency power supply and a cooling device are installed inside the pulsating vacuum sterilizer 1. The induction coil is fixedly installed on the inner wall of the vacuum chamber. One end of the vacuum pump passes through and extends into the interior of the vacuum chamber. The TCU of the new heating mode includes a high-precision temperature sensor, a signal conditioning feedback circuit and a central controller. The high-precision temperature sensor is installed inside the vacuum chamber. The signal conditioning and feedback circuit is installed inside the pulsating vacuum sterilizer 1. The control panel 2 includes a touch display, a pressure gauge, a temperature gauge, an indicator panel light and an on / off switch.

[0027] Among them, the signal conditioning feedback circuit includes an amplifier, a filter and an analog-to-digital converter. The control panel 2 adopts a programmable logic controller and an efficient recording and storage module, which can effectively amplify, filter and process the electrical signals output by the sensor, convert them into standard signals suitable for reception and processing by the controller, and support data recording and storage functions.

[0028] In addition, the induction coil has a spiral structure, the frequency range of the high-frequency power supply is 10kHz-100kHz, and the accuracy of the high-precision temperature sensor is between ±0.5-±1 degrees Celsius, which can achieve precise monitoring of temperature changes and support multiple power outputs to ensure the implementation of multi-stage heating.

[0029] It should be noted that the cooling device includes a heat dissipation fan and a heat dissipation grid plate. The heat dissipation fan is fixedly installed inside the pulsating vacuum sterilizer 1, and the heat dissipation grid plate is fixedly installed in the embedded grooves opened on the left and right sides of the pulsating vacuum sterilizer 1, so as to facilitate rapid cooling of the vacuum chamber.

[0030] By adopting the above technical scheme, an electromagnetic induction heating mode is realized, and an induction coil is arranged on the outer wall of the vacuum chamber. The vacuum chamber is heated by using the alternating magnetic field generated by the current passing through the induction coil, and the heating power is controlled by a high-frequency power supply, thereby realizing fine control of the temperature rise of the vacuum chamber. Compared with traditional resistance heating, the efficiency is increased by 60%-75%, and the temperature uniformity and stability in the vacuum chamber can be guaranteed, which is conducive to improving the consistency and qualified rate of products. In addition, the use of a spiral induction coil can make the magnetic field act more concentratedly on the heated object, reduce the leakage of the magnetic field and energy loss, consume less electricity than traditional electric heating, and adopt non-contact heating, which avoids the problems of oxidation and corrosion that may be caused by the heating elements in the traditional heating method due to long-term high-temperature use.

[0031] See also Figures 1 to 2 In this embodiment, a TCU system with a novel heating mode for pulsating vacuum includes the following steps:

[0032] S1: put the device into the vacuum chamber and close the sealing door 3, rotate and lock the hand rudder 4 and lock the sealing door 3;

[0033] S2 presses the on / off switch to start the vacuum pump to evacuate the interior of the vacuum chamber;

[0034] S3 multi-stage heating control;

[0035] S3.1 starts the electromagnetic induction heating mode through the touch display and sets the target temperature to 130 degrees Celsius, so that the high-frequency power supply starts the high-power gear, and uses the alternating magnetic field generated by the current passing through the induction coil to quickly heat the vacuum chamber and raise its temperature to 122-125 degrees Celsius;

[0036] S3.2 Then the real-time temperature information fed back by the temperature sensor triggers the high-frequency power supply to gradually adjust the heating power, so that the temperature rises slowly and stabilizes at 129-131 degrees Celsius;

[0037] S3.3 When the temperature reaches the preset target, the high-frequency power supply adopts a low-power maintenance mode to control the temperature inside the vacuum chamber to remain stable for a long time, thereby continuously disinfecting the equipment;

[0038] After S4 completes the disinfection, the multi-stage heating is turned off and the cooling device is started. The cooling fan in the cooling device continuously operates to quickly cool down the vacuum chamber until the vacuum chamber reaches a stable temperature of 30-40 degrees Celsius.

[0039] The beneficial effects of the present invention are:

[0040] By adopting the electromagnetic induction heating mode and arranging an induction coil on the outer wall of the vacuum chamber, the vacuum chamber is heated by the alternating magnetic field generated by the current passing through the induction coil, and the heating power is controlled by a high-frequency power supply, thereby realizing fine control of the vacuum chamber temperature rise, and compared with the traditional resistance heating efficiency is increased by 60%-75%, and the temperature uniformity and stability in the vacuum chamber can be guaranteed, which is conducive to improving the consistency and qualified rate of products. The use of a spiral induction coil can make the magnetic field act more concentratedly on the heated object, reduce the leakage of the magnetic field and energy loss, consume less electricity than traditional electric heating, and adopt non-contact heating, avoiding the problems of oxidation and corrosion that may be caused by the long-term high-temperature use of the heating element in the traditional heating method, and reducing the equipment downtime and maintenance time and cost caused by damage to the heating element.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A TCU with a novel heating mode for pulsating vacuum, characterized in that; The invention comprises a pulsating vacuum sterilizer (1), wherein a sealing door (3) is fixedly mounted on the pulsating vacuum sterilizer (1), a locking hand steering (4) is mounted on the sealing door, and a control panel (2) and a TCU with a novel heating mode are fixedly mounted on the pulsating vacuum sterilizer (1); The pulsating vacuum sterilizer (1) is internally installed with a vacuum pump, a vacuum chamber, an induction coil, a high-frequency power supply and a cooling device. The induction coil is fixedly installed on the inner wall of the vacuum chamber. One end of the vacuum pump penetrates and extends into the interior of the vacuum chamber. The TCU of the novel heating mode includes a high-precision temperature sensor, a signal conditioning feedback circuit and a central controller. The high-precision temperature sensor is installed inside the vacuum chamber. The signal conditioning and feedback circuit is installed inside the pulsating vacuum sterilizer (1). The control panel (2) includes a touch display, a pressure gauge, a temperature gauge, an indicator panel light and an on / off switch.

2. A TCU with a novel heating mode for pulsating vacuum according to claim 1, characterized in that; The signal conditioning feedback circuit comprises an amplifier, a filter and an analog-to-digital converter, and the control panel (2) adopts a programmable logic controller and a high-efficiency recording storage module.

3. A TCU with a novel heating mode for pulsating vacuum according to claim 1, characterized in that; The induction coil is of a spiral structure, the frequency range of the high-frequency power supply is 10kHz-100kHz, and the accuracy of the high-precision temperature sensor is between ±0.5-±1 degrees Celsius.

4. A TCU with a novel heating mode for pulsating vacuum according to claim 1, characterized in that; The cooling device comprises a heat dissipation fan and a heat dissipation grid plate, wherein the heat dissipation fan is fixedly installed inside the pulsation vacuum sterilizer (1), and the heat dissipation grid plate is fixedly installed in embedded grooves opened on the left and right sides of the pulsation vacuum sterilizer (1).

5. A TCU system with a new heating mode for pulsating vacuum, According to claim 1, it is characterized in that The following steps are involved: S1: Place the device into the vacuum chamber and close the sealing door (3), rotate and lock the hand rudder (4) and lock the sealing door (3); S2 presses the on / off switch to start the vacuum pump to evacuate the interior of the vacuum chamber; S3 multi-stage heating control; S3.1 starts the electromagnetic induction heating mode through the touch display and sets the target temperature to 130 degrees Celsius, so that the high-frequency power supply starts the high-power gear, and uses the alternating magnetic field generated by the current passing through the induction coil to quickly heat the vacuum chamber and raise its temperature to 122-125 degrees Celsius; S3.2 Then the real-time temperature information fed back by the temperature sensor triggers the high-frequency power supply to gradually adjust the heating power, so that the temperature rises slowly and stabilizes at 129-131 degrees Celsius; S3.3 When the temperature reaches the preset target, the high-frequency power supply adopts a low-power maintenance mode to control the temperature inside the vacuum chamber to remain stable for a long time, thereby continuously disinfecting the equipment; After S4 completes the disinfection, the multi-stage heating is turned off and the cooling device is started. The cooling fan in the cooling device continuously operates to quickly cool down the vacuum chamber until the vacuum chamber reaches a stable temperature of 30-40 degrees Celsius.

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