Air purifier
By designing a multi-layer filtering and dehumidification air purifier, the high cost and safety risks caused by the use of pure N2 gas in the prior art are solved, and effective purification and safe supply of gases in the production process of precision instruments are achieved.
Patent Information
- Application Number
- CN202421263927.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-04
AI Technical Summary
Existing air purifiers use pure N2 gas during precision instrument production, resulting in high operating costs and risk of explosion or suffocation.
An air purifier is designed, including an air intake unit, a condensation dehumidification unit, a purge control unit and a gas chamber purge circuit. Through multi-layer filtration and dehumidification technology, the filtered gas is provided instead of the traditional N2 gas.
It realizes effective removal of dust, oil, moisture and chemicals in the air, provides pure gas, reduces the risk of using high-pressure cylinders, improves the safety of the production process and reduces costs.
Smart Images
Figure CN222459737U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air purification equipment, in particular to an air purifier. Background Art
[0002] Air purifiers, also known as "air cleaners", air fresheners, and purifiers, refer to products that can absorb, decompose or transform various air pollutants (generally including PM2.5, dust, pollen, odors, decoration pollution such as formaldehyde, bacteria, allergens, etc.), effectively improve the cleanliness of the air, and are mainly divided into household, commercial, industrial, and building. Air purifiers are also used in the production of precision instruments. They are often used as zero-point calibration gas for precision instruments, protective blowing for precision parts in instruments, and isolation and anti-corrosion gas for precision parts. The production of these gases requires air purifiers to provide ultra-clean air; the existing technology uses pure N2 gas in the production process of precision instruments, and a large amount of pure N2 is consumed, the operating cost is high, and the higher the purity of N2, the greater the risk of explosion or suffocation; therefore, an air purifier for precision instruments is needed. Utility Model Content
[0003] The utility model provides an air purifier which can effectively solve the above problems.
[0004] The utility model is achieved in this way:
[0005] The utility model provides an air purifier, comprising: an air intake unit, a condensation and dehumidification unit, and a purge control unit; the output end of the air intake unit is connected to the input end of the condensation and dehumidification unit, the first output end of the condensation and dehumidification unit is connected to the condensate outlet of the condensation and dehumidification unit, the second output end of the condensation and dehumidification unit is connected to the input end of the purge control unit, the output end of the purge control unit is used to connect an instrument, wherein the purge control unit is configured to provide filtered gas to the instrument.
[0006] As a further improvement, the air purifier also includes: an air chamber purge circuit, the third output end of the condensation and dehumidification unit is connected to the input end of the air chamber purge circuit, and the output end of the air chamber purge circuit is used to purge the instrument.
[0007] As a further improvement, the air intake unit includes: an air filter and an air suction pump; the output end of the air filter is connected to the input end of the air suction pump, and the output end of the air suction pump is connected to the input end of the condensation and dehumidification unit.
[0008] As a further improvement, the condensation and dehumidification unit includes: a condenser and a condensation water outlet; the input end of the condenser is connected to the output end of the vacuum pump, the condenser is provided with three output ends, and a peristaltic pump is provided on the pipeline between the first output end of the condenser and the condensation water outlet.
[0009] As a further improvement, the air chamber purge circuit includes: a steam-water separation pressure regulator and a pressure switch; the input end of the steam-water separation pressure regulator is connected to the third output end of the condensation and dehumidification unit, the output end of the steam-water separation pressure regulator is connected to the input end of the pressure switch, the output end of the pressure switch is used to be connected to an instrument, and a flow meter is arranged between the steam-water separation pressure regulator and the pressure switch.
[0010] As a further improvement, the purge control unit includes: a membrane filter and an air purification box; the air purification box is provided with two input ends and three output ends, the input end of the membrane filter is connected to the second output end of the condensation and dehumidification unit, and the output end of the membrane filter is connected to the first input end of the air purification box.
[0011] As a further improvement, the purge control unit also includes: a thermometer and a three-way solenoid valve, the first output end of the air purification box is connected to the input end of the thermometer, the thermometer is connected to the first port of the three-way solenoid valve, the second port of the three-way solenoid valve is used to connect to the emptying channel, and the third port of the three-way solenoid valve is used to connect to the instrument.
[0012] As a further improvement, a plurality of Nafion tubes are arranged in the air purification box, the second output end of the air purification box is connected to the second input end of the air purification box, and the third output end of the air purification box is used to connect to the purge gas outlet of the Nafion tube.
[0013] As a further improvement, a flow meter is provided between the first output end of the air purification box and the thermometer and hygrometer, and a flow meter is provided between the second output end of the air purification box and the second input end of the air purification box.
[0014] The beneficial effects of the utility model are:
[0015] The utility model can remove dust, oil and fine debris in the air by arranging an air filter box and a membrane filter, can remove most of the water vapor and some chemical substances in the gas by arranging a condenser, discharge them through a peristaltic pump and reduce the dew point of the gas to 3°C, and arrange an air purification box to further filter out the residual water vapor in the gas through the Nafion tube arranged inside, and make the dew point of the gas reach pure gas of about -25°C, which is applied to the production process of precision instruments to achieve the effect of replacing the traditional use of N2, reduce the use of high-pressure cylinders filled with N2, improve the safety of the production process, and reduce the production cost. The temperature and humidity in the air are monitored in real time by arranging a thermometer and hygrometer. When the temperature or humidity in the purified air exceeds a preset value, the three-way solenoid valve is controlled to guide the unqualified purified gas to the emptying channel to prevent the unqualified purified gas from supplying to the precision instrument, and a warning is issued through a humidity alarm until the temperature or humidity returns to normal value, and then the precision instrument is continuously supplied with gas; by arranging an air chamber purge circuit, filtered gas can be provided to other instruments or meters that do not require high-purity purified gas. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 The utility model is a schematic diagram of the gas path flow of an air purifier.
[0018] Figure 2 The utility model is a structural schematic diagram of an air purifier.
[0019] In the figure: 1-air filter, 2-vacuum pump, 3-condenser, 4-steam-water separation pressure regulator, 5-flow meter, 6-pressure switch, 7-peristaltic pump, 8-membrane filter, 9-air purification box, 10-thermohygrometer, 11-three-way solenoid valve, 12-humidity alarm, 13-condensation water outlet, 14-fan. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are 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 making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.
[0021] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0022] Reference Figure 1-2 As shown, an air purifier comprises: an air intake unit, a condensation and dehumidification unit, an air chamber purge circuit and a purge control unit;
[0023] The output end of the air intake unit is connected to the input end of the condensation and dehumidification unit, the first output end of the condensation and dehumidification unit is connected to the condensate outlet of the condensation and dehumidification unit, the second output end is connected to the input end of the purge control unit, the output end of the purge control unit is used to connect the instrument, wherein the purge control unit is configured to provide filtered gas to the instrument, the third output end of the condensation and dehumidification unit is connected to the input end of the air chamber purge circuit, and the output end of the air chamber purge circuit is used to purge the instrument; dust, oil, fine debris, moisture and chemicals in the air can be removed, so that the gas filtered by the air purifier can replace N2 and be used in the production process of precision instruments.
[0024] Furthermore, the air intake unit includes: an air filter 1 and an air pump 2; the output end of the air filter 1 is connected to the input end of the air pump 2, and the output end of the air pump 2 is connected to the input end of the condensation and dehumidification unit. The external air is drawn into the pipe through the air pump 2, and after being filtered by the air filter 1, it flows to the condensation and dehumidification unit through the air pump 2. The air filter 1 is provided with an ultrafine filter element, which can effectively remove dust, oil and fine debris in the air; the condensation and dehumidification unit includes: a condenser 3 and a condensation water outlet 13; the input end of the condenser 3 is connected to the output end of the air pump 2, and the condenser 3 is provided with three output ends. A peristaltic pump 7 is provided on the pipeline between the first output end of the condenser 3 and the condensation water outlet 13. The temperature of the condenser 3 is controlled at 3°C, which can effectively remove most of the moisture and some chemical substances in the air. These substances are drawn by the peristaltic pump 7 and flow through the first output end of the condenser 3 to the condensation water outlet 13 for discharge. At this time, the dew point of the air after passing through the condenser 3 reaches 3°C.
[0025] Furthermore, the purge control unit comprises: a membrane filter 8, an air purification box 9, a thermometer and hygrometer 10 and a three-way solenoid valve 11; the air purification box 9 is provided with two input ends and three output ends, the input end of the membrane filter 8 is connected to the second output end of the condenser 3, the membrane filter 8 is used to further filter the condensed air to remove the residual chemicals in the air, the output end of the membrane filter 8 is connected to the first input end of the air purification box 9, the first output end of the air purification box 9 is connected to the input end of the thermometer and hygrometer 10, the second output end is connected to the second input end of the air purification box 9, the third output end is used to connect to the Nafion tube purge gas outlet, and a plurality of Nafion tubes are provided in the air purification box 9, the Nafion tubes are connected to the Nafion tubes, and the Nafion tubes are connected to the Nafion tubes. The Nafion tube is provided with an inner tube and an outer tube, the inner tube is sleeved in the outer tube, the input end of the inner tube is connected to the first input end of the air purification box 9, the output end of the inner tube is connected to the first output end and the second output end of the air purification box 9, the input end of the outer tube is connected to the second output end of the air purification box 9, and the output end of the outer tube is connected to the third output end of the air purification box 9. The air filtered by the membrane filter 8 flows into the inner tube of the Nafion tube, and the Nafion tube transfers water molecules from one side of the tube to the other side through a first-order kinetic reaction. At this time, the water molecules are in the interlayer between the outer tube and the inner tube, and the dry air after dehydration flows out from the second output end through diversion, flows into the second input end, takes away the water molecules in the interlayer, and is discharged from the third output end. The dew point of the air treated by the air purification box 9 reaches -25°C.
[0026] Furthermore, the thermometer and hygrometer 10 is connected to the first port of the three-way solenoid valve 11, the second port of the three-way solenoid valve 11 is used to connect to the emptying channel, and the third port is used to connect to the instrument. A flow meter 5 is arranged between the first output end of the air purification box 9 and the thermometer and hygrometer 10, and a flow meter 5 is arranged between the second output end of the air purification box 9 and the second input end of the air purification box 9. A humidity alarm 12 is arranged on the three-way solenoid valve 11. The air passes through the thermometer and hygrometer 10 to detect the temperature and humidity in the air. If the temperature or humidity in the air exceeds the preset value, the first port of the three-way solenoid valve 11 is connected to the second port, and the air is discharged through the emptying channel, and a warning is issued through the humidity alarm 12. If the temperature and humidity in the air are within the preset value, the first port of the three-way solenoid valve 11 is connected to the third port, and pure air is used in the production process of precision instruments.
[0027] Furthermore, the air chamber purge circuit includes: a steam-water separation pressure regulator 4 and a pressure switch 6; the input end of the steam-water separation pressure regulator 4 is connected to the third output end of the condenser 3, the output end of the steam-water separation pressure regulator 4 is connected to the input end of the pressure switch 6, the output end of the pressure switch 6 is used to be connected to the instrument, and a flow meter 5 is arranged between the steam-water separation pressure regulator 4 and the pressure switch 6; the steam-water separation pressure regulator 4 separates the water vapor from the air flowing out of the condenser 3 again, passes the separated air into the pressure switch 6, and passes to the infrared gas analyzer through the pressure switch 6, and performs a purge operation on the infrared gas analyzer.
[0028] Furthermore, the infrared gas analyzer is used to detect the air quality in the working environment of the air purifier. If the working environment contains more corrosive chemicals, it is necessary to use a pipe placed in an environment with good air quality to extract air. The air purifier is also provided with a fan 14. If the working environment temperature of the air purifier exceeds 25°C, the fan 14 will automatically turn on to cool the inside of the air purifier to ensure that the output air dew point is within the preset value, which has met the requirements for the production of precision instruments.
[0029] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An air purifier, characterized in that: include: Air intake unit, condensation and dehumidification unit, purge control unit; The output end of the air intake unit is connected to the input end of the condensation and dehumidification unit, and the first output end of the condensation and dehumidification unit is connected to the condensation water outlet of the condensation and dehumidification unit. The second output end of the condensation and dehumidification unit is connected to the input end of the purge control unit, and the output end of the purge control unit is used to connect an instrument, wherein the purge control unit is configured to provide filtered gas to the instrument.
2. An air purifier according to claim 1, characterized in that: The air purifier further includes: an air chamber purge circuit, the third output end of the condensation and dehumidification unit is connected to the input end of the air chamber purge circuit, and the output end of the air chamber purge circuit is used to purge the instrument.
3. An air purifier according to claim 1, characterized in that: The air intake unit comprises: an air filter (1) and an air extraction pump (2); the output end of the air filter (1) is connected to the input end of the air extraction pump (2), and the output end of the air extraction pump (2) is connected to the input end of the condensation and dehumidification unit.
4. An air purifier according to claim 3, characterized in that: The condensation and dehumidification unit comprises: a condenser (3) and a condensation water outlet (13); the input end of the condenser (3) is connected to the output end of the vacuum pump (2), the condenser (3) is provided with three output ends, and a peristaltic pump (7) is provided on the pipeline between the first output end of the condenser (3) and the condensation water outlet (13).
5. An air purifier according to claim 2, characterized in that: The air chamber purge circuit comprises: a steam-water separation pressure regulator (4) and a pressure switch (6); the input end of the steam-water separation pressure regulator (4) is connected to the third output end of the condensation and dehumidification unit, the output end of the steam-water separation pressure regulator (4) is connected to the input end of the pressure switch (6), the output end of the pressure switch (6) is used to be connected to an instrument, and a flow meter (5) is provided between the steam-water separation pressure regulator (4) and the pressure switch (6).
6. An air purifier according to claim 1, characterized in that: The purge control unit comprises: a membrane filter (8) and an air purification box (9); the air purification box (9) is provided with two input ends and three output ends, the input end of the membrane filter (8) is connected to the second output end of the condensation and dehumidification unit, and the output end of the membrane filter (8) is connected to the first input end of the air purification box (9).
7. An air purifier according to claim 6, characterized in that: The purge control unit further comprises: a thermometer and hygrometer (10) and a three-way solenoid valve (11); the first output end of the air purification box (9) is connected to the input end of the thermometer and hygrometer (10); the thermometer and hygrometer (10) is connected to the first port of the three-way solenoid valve (11); the second port of the three-way solenoid valve (11) is used to connect to the emptying channel; and the third port of the three-way solenoid valve (11) is used to connect to the instrument.
8. An air purifier according to claim 7, characterized in that: A plurality of Nafion tubes are arranged in the air purification box (9); the second output end of the air purification box (9) is connected to the second input end of the air purification box (9); and the third output end of the air purification box (9) is used to connect to the purge gas outlet of the Nafion tube.
9. An air purifier according to claim 8, characterized in that: A flow meter (5) is provided between the first output end of the air purification box (9) and the thermometer and hygrometer (10), and a flow meter (5) is provided between the second output end of the air purification box (9) and the second input end of the air purification box (9).