Multipath output carbon dioxide cleaning equipment

Abstract

The utility model discloses a multi-output carbon dioxide cleaning device which comprises a base, a plurality of sets of supporting frames, a first carbon dioxide pressure transmitter and a first compressed air pressure transmitter, the supporting frames are installed on the upper end face of the inner side of the base, and the first carbon dioxide pressure transmitter and the first compressed air pressure transmitter are installed on the base. A first carbon dioxide pressure transmitter is arranged on the upper end face of the inner side of the base, and a first compressed air pressure transmitter is arranged on one side of the first carbon dioxide pressure transmitter. The equipment meets the requirement for complex product structure or large cleaning surface through multi-path carbon dioxide output, independent control and adjustment, compressed boosting gas and carbon dioxide diaphragm valve gas are independently input and adjusted, the phenomena of unstable air pressure and carbon dioxide spray interruption are avoided, the carbon dioxide flow and pressure are monitored in real time, and the cleaning efficiency is improved. Alarm feedback is given out when spraying is stopped or pressure is insufficient, independent heating control is achieved through boosting gas, condensate water generated by dry ice cleaning is avoided, and condensate water can be eliminated through auxiliary gas heating monitoring.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon dioxide fluid cleaning equipment, in particular to a multi-channel output carbon dioxide cleaning equipment. Background Art

[0002] Carbon dioxide cleaning equipment is a kind of equipment that uses carbon dioxide as a cleaning medium. It can remove stains, grease, dust and other pollutants on the surface of objects through different physical states (solid, liquid or supercritical state). This cleaning method is more environmentally friendly than traditional chemical cleaning methods because it does not involve the use of harmful chemicals, and carbon dioxide is a renewable resource that can be recycled;

[0003] In industries such as high-precision electronics or optical lenses, it is easy for micron-sized particles, fingerprints, and oil stains to appear on the surface of products. The cleanliness of products directly determines the yield of products, so cleaning equipment is needed to remove dirt and dust. Traditional clean equipment includes dry ice grinding cleaning machines or centrifugal water washing machines. Centrifugal water washing has poor cleaning effect on particles of 5-10 microns. At the same time, cleaning requires a large amount of high-purity water, which wastes resources and has a large impact on the surface of products. There are risks in use, and the applicability is low in precision electronics and optical lenses. Generally, carbon dioxide equipment uses compressed gas as auxiliary gas and acts on the internal diaphragm valve at the same time. When the auxiliary gas is fully opened, the gas pressure acting on the diaphragm valve decreases, which will cause dry ice to stop spraying. There is a lack of monitoring of the liquid flow of carbon dioxide. Air pressure detection is generally used, but the state of carbon dioxide is unknown. The auxiliary gas needs to be heated to remove the condensed water formed on the surface of the product by the sublimation of dry ice. Generally, the heating effect is not achieved, or the heating is over-temperature. There is a lack of temperature control, which causes damage to other parts inside the equipment, and the heating rod is not cooled after stopping work, shortening the service life.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a multi-channel output carbon dioxide cleaning equipment is proposed to achieve a more practical purpose. Utility Model Content

[0005] The utility model aims to provide a multi-channel carbon dioxide cleaning device to solve the problem of cleaning through multi-channel carbon dioxide output proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-channel output carbon dioxide cleaning device, comprising a base, a support frame, a first carbon dioxide pressure transmitter and a first compressed air pressure transmitter, the support frame is installed on the upper end surface of the inner side of the base, and the support frame is provided with a plurality of groups, the upper end surface of the inner side of the base is provided with a first carbon dioxide pressure transmitter, and a first compressed air pressure transmitter is provided on one side of the first carbon dioxide pressure transmitter, a compressed air solenoid valve is provided on one side of the first compressed air pressure transmitter, and a PLC integrated machine is installed on one side of the compressed air solenoid valve, and the PLC integrated machine Installed on the side wall of the base, an indicator light is provided on one side of the PLC all-in-one machine, a second compressed air pressure transmitter is provided on the upper end surface of the inner side of the base, a needle valve is provided on the side wall of the base, and a pressure regulating valve is provided on one side of the needle valve, a spray gun is provided on one side of the base, the needle valve is connected to a diaphragm valve, the second compressed air pressure transmitter is connected to a compressed air reducing valve, the diaphragm valve is connected to a second carbon dioxide pressure transmitter, and the second carbon dioxide pressure transmitter is connected to a carbon dioxide flowmeter, a thermocouple is provided on the top of the support frame, and a heating rod is provided on one side of the thermocouple.

[0007] Furthermore, the PLC all-in-one machine is composed of a display screen and a PLC controller, and the display screen is installed on the side end surface of the base, and the PLC controller is installed on the upper end surface of the base, and the first carbon dioxide pressure transmitter, the first compressed air pressure transmitter, the compressed air solenoid valve, the indicator light, the second compressed air pressure transmitter, the needle valve, the spray gun, the pressure regulating valve, the diaphragm valve, the compressed air reducing valve, the second carbon dioxide pressure transmitter, the carbon dioxide flowmeter, the thermocouple, and the heating rod are all electrically connected to the PLC all-in-one machine.

[0008] Furthermore, two groups of carbon dioxide flowmeters are provided, and the two groups of carbon dioxide flowmeters are connected to the first carbon dioxide pressure transmitter and the second carbon dioxide pressure transmitter respectively, and the first carbon dioxide pressure transmitter and the second carbon dioxide pressure transmitter are connected to the diaphragm valve.

[0009] Furthermore, the heating rod is in the shape of a cavity, and the heating rod and the connecting valve and pipeline form a connecting structure with the first carbon dioxide pressure transmitter, the first compressed air pressure transmitter, the compressed air solenoid valve, the second compressed air pressure transmitter, the needle valve, the spray gun, the pressure regulating valve, the diaphragm valve, the compressed air pressure reducing valve, the second carbon dioxide pressure transmitter and the carbon dioxide flowmeter.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the multi-channel output carbon dioxide cleaning equipment can be independently controlled and adjusted through multi-channel carbon dioxide output, which can solve the needs of complex product structure or large cleaning surface, and the compressed booster gas and the carbon dioxide diaphragm valve gas are independently input and adjusted to avoid unstable air pressure and carbon dioxide spraying failure. The carbon dioxide flow and pressure can be monitored in real time, and alarm feedback is given when the spraying is stopped or the pressure is insufficient. The booster gas is used for independent heating control to avoid condensed water generated by dry ice cleaning. At the same time, the auxiliary gas is heated and monitored, and the heating rod cooling function is added after stopping use.

[0011] The multi-channel output carbon dioxide cleaning equipment uses liquid carbon dioxide to be input through a main interface, and is divided into two or multiple outputs inside the equipment. An independent needle valve is used to adjust the flow of carbon dioxide and an independent diaphragm valve is used to control the pipeline switch. The diaphragm valve is also controlled by a separate gas pipeline. In addition, a carbon dioxide flow meter and a pressure transmitter are connected to the carbon dioxide branch to monitor the usage and pressure of carbon dioxide in real time, and transmit data and signals to the host computer through the PLC all-in-one machine to monitor the stability of carbon dioxide injection in multiple directions. The gas input is divided into two channels, one as a booster gas, and the other is used to control the switch of the diaphragm valve. There are separate pressure transmitters and compressed air solenoid valves in the two gas pipelines;

[0012] The main function of the booster gas in this multi-channel output carbon dioxide cleaning equipment is to enhance the impact force of dry ice particles and the cleaning effect. A pressure transmitter is used in the pipeline to monitor the gas pressure and heat the booster gas. At the same time, the pressure must reach the set threshold value before the heating rod will work to prevent the heating rod from burning dry. The booster gas heating can remove the condensed water generated during the dry ice cleaning process and is an important process parameter. The independent heating of the auxiliary gas uses a thermostat (thermocouple and heating rod) to set the upper and lower limits of the heating temperature, and supports alarm output and PLC all-in-one machine. After the dry ice equipment stops using, the compressed air is delayed to close to cool the heating rod. The cooling time is controlled by a timer to control the switch of the diaphragm valve. The gas consumption is low and the gas pressure can be maintained above 0.4MPa. Therefore, the two gases are controlled separately to avoid the situation where the large consumption of one gas pulls down the pressure of the other gas.

[0013] The multi-channel output carbon dioxide cleaning equipment is connected to two compressed gas and liquid carbon dioxide pipelines respectively, the power switch is closed, the air pressure switch displays the pressure of the two gases respectively, the two gas switches can be controlled by the solenoid valve, the pressure regulating valve adjusts the auxiliary gas and the diaphragm valve switch gas pressure, any channel of carbon dioxide is opened, the first compressed air pressure transmitter is used to compress the intake air to control the opening of the diaphragm valve, the flow meter monitors the carbon dioxide usage, the pressure transmitter monitors the carbon dioxide pipeline pressure, and there will be an alarm feedback if it is too large or too small, the auxiliary gas is turned on, the heating rod begins to adjust the heating temperature according to the setting of the thermostat, and there will be an alarm feedback if the actual temperature is too large or too small, the liquid carbon dioxide flows into the loop, and after the capillary throttling expansion, dry ice particles are formed and ejected by the spray gun, the needle valve can adjust the size of the dry ice particle flow, at this time, carbon dioxide and compressed gas are connected and ejected by the spray gun at the same time, forming a mixture of dry ice and gas, which can clean the product, after the equipment is stopped, the compressed air delays the closing of the cooling heating rod, and the cooling time is controlled by the timer, wherein the carbon dioxide control principle of other different channels is the same, and an independent carbon dioxide switch and needle valve are provided to adjust the carbon dioxide flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a multi-channel output carbon dioxide cleaning device of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of a PLC integrated machine for multi-channel output carbon dioxide cleaning equipment of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of a connecting valve for a multi-channel output carbon dioxide cleaning device of the utility model.

[0017] In the figure: 101, base; 102, support frame; 1, first carbon dioxide pressure transmitter; 2, first compressed air pressure transmitter; 3, compressed air solenoid valve; 4, PLC integrated machine; 5, indicator light; 6, second compressed air pressure transmitter; 7, needle valve; 8, spray gun; 9, pressure regulating valve; 10, diaphragm valve; 11, compressed air pressure reducing valve; 12, second carbon dioxide pressure transmitter; 13, carbon dioxide flowmeter; 14, thermocouple; 15, heating rod; 16, connecting valve; 17, pipeline. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figures 1 to 3 The utility model provides a technical solution: a multi-channel output carbon dioxide cleaning device, including a base 101, a support frame 102, a first carbon dioxide pressure transmitter 1 and a first compressed air pressure transmitter 2, the support frame 102 is installed on the upper end surface of the inner side of the base 101, and the support frame 102 is provided with a plurality of groups, the upper end surface of the inner side of the base 101 is provided with the first carbon dioxide pressure transmitter 1, and the first compressed air pressure transmitter 2 is provided on one side of the first carbon dioxide pressure transmitter 1, a compressed air solenoid valve 3 is provided on one side of the first compressed air pressure transmitter 2, and a PLC integrated machine 4 is installed on one side of the compressed air solenoid valve 3, and the PLC integrated machine 4 is installed on the base The side wall of the base 101, an indicator light 5 is provided on one side of the PLC all-in-one 4, a second compressed air pressure transmitter 6 is provided on the upper end surface inside the base 101, a needle valve 7 is provided on the side wall of the base 101, and a pressure regulating valve 9 is provided on one side of the needle valve 7, a spray gun 8 is provided on one side of the base 101, the needle valve 7 is connected to a diaphragm valve 10, the second compressed air pressure transmitter 6 is connected to a compressed air pressure reducing valve 11, the diaphragm valve 10 is connected to a second carbon dioxide pressure transmitter 12, and the second carbon dioxide pressure transmitter 12 is connected to a carbon dioxide flowmeter 13, a thermocouple 14 is provided above the support frame 102, and a heating rod 15 is provided on one side of the thermocouple 14;

[0020] Liquid carbon dioxide is input through a main interface and is divided into two or multiple outputs inside the device. An independent needle valve 7 is used to adjust the flow of carbon dioxide and an independent diaphragm valve 10 is used to control the pipeline switch. Similarly, the diaphragm valve 10 is controlled by a separate gas pipeline. In addition, a carbon dioxide flowmeter 13 and a pressure transmitter are connected to the carbon dioxide branch to monitor the usage and pressure of carbon dioxide in real time, and transmit data and signals to the host computer through the PLC all-in-one machine 4 to monitor the stability of carbon dioxide injection in multiple directions. The gas input is divided into two routes, one as a booster gas, and the other is used to control the control switch of the diaphragm valve 10. There are separate pressure transmitters and solenoid valves 3 in the two gas pipelines. The main function of the booster gas is to enhance the impact force and cleaning effect of dry ice particles. The pressure transmitter is used in the pipeline. The transmitter monitors the gas pressure and heats the booster gas. At the same time, the pressure must reach the set threshold value before the heating rod 15 will work to prevent the heating rod 15 from burning dry. The booster gas heating can remove the condensed water generated during the dry ice cleaning process, which is an important process parameter. The independent heating of the auxiliary gas uses a thermostat (thermocouple 14 and heating rod 15) to set the upper and lower limits of the heating temperature, and supports alarm output and PLC all-in-one machine 4. After the dry ice equipment stops using, the compressed air is delayed to close to cool the heating rod 15. The cooling time is controlled by a timer to control the switch of the diaphragm valve 10. The gas consumption is low and the gas pressure can be maintained above 0.4MPa. Therefore, the two gas lines are controlled separately to avoid the situation where the large consumption of one gas line lowers the pressure of the other gas line;

[0021] The two compressed gas and liquid carbon dioxide pipelines are connected respectively, the power switch is closed, and the air pressure switch displays the pressure of the two gases respectively. The two gas switches can be controlled by the solenoid valve, the pressure regulating valve 9 adjusts the auxiliary gas and the diaphragm valve 10 switches the gas pressure, and any channel of carbon dioxide is opened. The first compressed air pressure transmitter 2 is used to compress the intake air to control the opening of the diaphragm valve 10, the flow meter monitors the carbon dioxide usage, and the pressure transmitter monitors the carbon dioxide pipeline pressure. If it is too large or too small, there will be an alarm feedback; turn on the auxiliary gas, and the heating rod 15 starts to adjust the heating temperature according to the temperature controller setting, and the actual If the actual temperature is too high or too low, there will be an alarm feedback. Liquid carbon dioxide flows into the loop, and after capillary throttling expansion, dry ice particles are formed and ejected from the spray gun 8. The needle valve 7 can adjust the flow rate of dry ice particles. At this time, carbon dioxide and compressed gas are connected and ejected from the spray gun 8 at the same time to form a mixture of dry ice and gas, which can be used to clean the product. After the equipment is stopped, the compressed air is delayed to close and cool the heating rod 15. The cooling time is controlled by a timer. The carbon dioxide control principle of other different passages is the same, and an independent carbon dioxide switch and a needle valve 7 are provided to adjust the carbon dioxide flow rate;

[0022] The PLC integrated machine 4 is composed of a display screen and a PLC controller, and the display screen is installed on the side end surface of the base 101, and the PLC controller is installed on the upper end surface of the base 101. The first carbon dioxide pressure transmitter 1, the first compressed air pressure transmitter 2, the compressed air solenoid valve 3, the indicator light 5, the second compressed air pressure transmitter 6, the needle valve 7, the spray gun 8, the pressure regulating valve 9, the diaphragm valve 10, the compressed air pressure reducing valve 11, the second carbon dioxide pressure transmitter 12, the carbon dioxide flow meter 13, the thermocouple 14, and the heating rod 15 are all electrically connected to the PLC integrated machine 4. The carbon dioxide flow meter 13 is provided with two groups, and the two groups of carbon dioxide flow meters are connected to the PLC integrated machine 4. The meter 13 respectively forms a communication structure with the first carbon dioxide pressure transmitter 1 and the second carbon dioxide pressure transmitter 12, and the first carbon dioxide pressure transmitter 1 and the second carbon dioxide pressure transmitter 12 both form a communication structure with the diaphragm valve 10, the heating rod 15 is in a cavity shape, and the heating rod 15 and the connecting valve 16 and the pipeline 17 form a communication structure with the first carbon dioxide pressure transmitter 1, the first compressed air pressure transmitter 2, the compressed air solenoid valve 3, the second compressed air pressure transmitter 6, the needle valve 7, the spray gun 8, the pressure regulating valve 9, the diaphragm valve 10, the compressed air reducing valve 11, the second carbon dioxide pressure transmitter 12 and the carbon dioxide flowmeter 13.

[0023] Working principle: When using a multi-channel output carbon dioxide cleaning equipment, first connect the two compressed gas and liquid carbon dioxide pipelines respectively, close the power switch, the air pressure switch displays the two gas pressures respectively, use the solenoid valve to control the two gas switches, the pressure regulating valve 9 adjusts the auxiliary gas and the diaphragm valve 10 switches the gas pressure, open any channel of carbon dioxide, use the first compressed air pressure transmitter 2 to compress the intake air to control the diaphragm valve 10 to open, the flow meter monitors the carbon dioxide usage, the pressure transmitter monitors the carbon dioxide pipeline pressure, if it is too large or too small, there will be an alarm feedback, turn on the auxiliary gas, and the heating rod 15 starts to control the temperature according to the temperature. The device is set to adjust the heating temperature. If the actual temperature is too high or too low, there will be an alarm feedback. Liquid carbon dioxide flows into the circuit, and after capillary throttling expansion, dry ice particles are formed and ejected from the spray gun 8. The needle valve 7 can adjust the flow rate of dry ice particles. At this time, carbon dioxide and compressed gas are connected and ejected from the spray gun 8 at the same time to form a mixture of dry ice and gas, which can be used to clean the product. After the equipment is stopped, the compressed air is delayed to close and cool the heating rod 15. The cooling time is controlled by a timer. The carbon dioxide control principle of other different passages is the same. An independent carbon dioxide switch and a needle valve 7 are provided to adjust the carbon dioxide flow rate.

Claims

1. A multi-channel output carbon dioxide cleaning device, comprising a base (101), a support frame (102), a first carbon dioxide pressure transmitter (1) and a first compressed air pressure transmitter (2), characterized in that: The support frame (102) is mounted on the upper end surface of the inner side of the base (101), and the support frame (102) is provided with a plurality of groups. The upper end surface of the inner side of the base (101) is provided with a first carbon dioxide pressure transmitter (1), and a first compressed air pressure transmitter (2) is provided on one side of the first carbon dioxide pressure transmitter (1), a compressed air solenoid valve (3) is provided on one side of the first compressed air pressure transmitter (2), and a PLC integrated machine (4) is installed on one side of the compressed air solenoid valve (3), and the PLC integrated machine (4) is mounted on the side wall of the base (101), an indicator light (5) is provided on one side of the PLC integrated machine (4), and a first compressed air pressure transmitter (2) is provided on the upper end surface of the inner side of the base (101). A second compressed air pressure transmitter (6), a needle valve (7) is provided on the side wall of the base (101), and a pressure regulating valve (9) is provided on one side of the needle valve (7), a spray gun (8) is provided on one side of the base (101), the needle valve (7) is connected to a diaphragm valve (10), the second compressed air pressure transmitter (6) is connected to a compressed air pressure reducing valve (11), the diaphragm valve (10) is connected to a second carbon dioxide pressure transmitter (12), and the second carbon dioxide pressure transmitter (12) is connected to a carbon dioxide flowmeter (13), a thermocouple (14) is provided above the support frame (102), and a heating rod (15) is provided on one side of the thermocouple (14).

2. A multi-channel output carbon dioxide cleaning device according to claim 1, characterized in that: The PLC integrated machine (4) is composed of a display screen and a PLC controller, and the display screen is mounted on the side end surface of the base (101), and the PLC controller is mounted on the upper end surface of the base (101), and the first carbon dioxide pressure transmitter (1), the first compressed air pressure transmitter (2), the compressed air solenoid valve (3), the indicator light (5), the second compressed air pressure transmitter (6), the needle valve (7), the spray gun (8), the pressure regulating valve (9), the diaphragm valve (10), the compressed air pressure reducing valve (11), the second carbon dioxide pressure transmitter (12), the carbon dioxide flowmeter (13), the thermocouple (14), and the heating rod (15) are all electrically connected to the PLC integrated machine (4).

3. A multi-channel output carbon dioxide cleaning device according to claim 2, characterized in that: The carbon dioxide flowmeter (13) is provided in two groups, and the two groups of carbon dioxide flowmeters (13) respectively form a communication structure with the first carbon dioxide pressure transmitter (1) and the second carbon dioxide pressure transmitter (12), and the first carbon dioxide pressure transmitter (1) and the second carbon dioxide pressure transmitter (12) both form a communication structure with the diaphragm valve (10).

4. A multi-channel output carbon dioxide cleaning device according to claim 3, characterized in that: The heating rod (15) is in the shape of a cavity, and the heating rod (15) and the connecting valve (16) and the pipeline (17) form a communication structure with the first carbon dioxide pressure transmitter (1), the first compressed air pressure transmitter (2), the compressed air solenoid valve (3), the second compressed air pressure transmitter (6), the needle valve (7), the spray gun (8), the pressure regulating valve (9), the diaphragm valve (10), the compressed air pressure reducing valve (11), the second carbon dioxide pressure transmitter (12) and the carbon dioxide flow meter (13).

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