Sampling device in carbon dioxide incubator
By using filter cartridges and colloidal desiccant in the sampling device of the carbon dioxide incubator for gas drying, the problem of high detection caused by water vapor condensation during gas sampling is solved, and more accurate gas sampling and detection results are achieved.
Patent Information
- Application Number
- CN202411817629.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-03-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In a carbon dioxide incubator, water vapor condenses due to the decrease in temperature during the gas sampling process, resulting in a decrease in the total amount of gas, and the measurement of carbon dioxide concentration is too high, affecting the accuracy of the detection results.
A sampling device is designed to dry the water vapor in the adsorbed gas by installing a filter cartridge and a colloidal desiccant in the inner cavity of the main cylinder to prevent the water vapor from condensing to affect detection.
It effectively avoids the impact of water vapor condensation on detection accuracy, ensures the authenticity and accuracy of gas sampling, and provides an emergency humidification and drying mechanism, maintaining the humidity in the incubator within a reasonable range.
Smart Images
Figure CN119592407A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of incubators, and in particular to a sampling device inside a carbon dioxide incubator. Background Art
[0002] The sampling device inside the carbon dioxide incubator is one of its key components. The design and application background technology of this device are mainly based on the needs of cell and tissue culture. The carbon dioxide incubator is an advanced laboratory equipment, mainly used for in vitro culture of organisms such as cells, tissues, and bacteria. In order to simulate the growth environment of cells or tissues in the body, the incubator needs to maintain a stable temperature, a stable carbon dioxide content, a constant pH, and a high relative saturated humidity. The precise control of these conditions is crucial for the healthy growth of cells. In order to achieve these conditions, the carbon dioxide incubator is equipped with a variety of sensors and control systems. Among them, the sampling device is an important tool for monitoring and regulating the environment inside the incubator. The device usually includes a carbon dioxide sensor, a temperature sensor, and a humidity sensor, which can detect various parameters in the incubator in real time. In the current carbon dioxide incubator, there is a technical difficulty in the sampling process. Since the working environment temperature inside the incubator is usually higher than the external room temperature, when the internal gas is extracted, the water vapor in the extracted gas will condense due to the temperature drop when it enters the gas chamber of the analyzer through the external pipeline for detection. This phenomenon leads to a decrease in the total amount of gas, while the concentration of carbon dioxide remains unchanged, resulting in a higher measured carbon dioxide content, which affects the accuracy of the test results to a certain extent. Summary of the invention
[0003] The purpose of the present invention is to solve the problems in the background technology and to propose a sampling device inside a carbon dioxide incubator.
[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a sampling device inside a carbon dioxide incubator, comprising an incubator, a side box is fixedly installed on the side wall of the incubator, a main cylinder, an air pump and an analyzer are fixedly installed in the inner cavity of the side box, a bottom cylinder is welded at the bottom of the main cylinder, a filter cartridge is welded at the bottom of the inner cavity of the main cylinder, two arc-shaped sealing plates are welded at the bottom of the inner cavity of the main cylinder, and the two arc-shaped sealing plates are respectively located at the front and rear sides of the filter cartridge, and the sides of the two arc-shaped sealing plates close to the filter cartridge are both in contact with the outer ring wall of the filter cartridge, an air inlet pipe and an air outlet pipe are connected on the side wall of the main cylinder, and the side of the air inlet pipe away from the main cylinder is connected to the inner cavity of the incubator, and the side of the air outlet pipe away from the main cylinder is connected to the air pump, an electromagnetic valve 1 is fixedly installed on the pipe wall of the air inlet pipe, a gas supply pipe 1 is connected at the bottom of the air pump, and the side of the gas supply pipe 1 away from the air pump is rotatably connected It is connected to a gas pipe 2, a circular plate is welded on the outer ring wall of the gas pipe 2, an air outlet channel connected to the gas pipe 2 is connected on the outer ring wall of the circular plate, an annular channel connected to the air outlet channel is provided in the inner cavity of the bottom cylinder, a gas pipe 3 connected to the annular channel is arranged on the side wall of the bottom cylinder, and the gas pipe 3 is connected to the analyzer at a side away from the bottom cylinder, an external controller drives the solenoid valve 1 and the air pump to open at fixed intervals, and under the action of the air pump, part of the gas in the inner cavity of the incubator is sucked into the air inlet pipe, and then enters the inner cavity of the main cylinder through the air inlet pipe, because the two symmetrical arc-shaped sealing plates are arranged tightly against the front and rear sides of the filter cartridge, the gas can only move to the right through the filter cartridge, and in this process, a number of colloidal desiccants placed in the inner cavity of the filter cartridge can adsorb and dry the water vapor in the gas to prevent the water vapor from condensing when it encounters cold and affecting the accuracy of subsequent detection.
[0005] In the above-mentioned sampling device inside the carbon dioxide incubator, the middle section of the gas pipe 1 is a hose, and the up and down movement of the gas pipe 2 will drive the hose to adaptively stretch and contract, and the set hose ensures the fluidity of the gas path.
[0006] In the above-mentioned sampling device inside a carbon dioxide incubator, a vertical rod is welded to the top of the gas delivery pipe three, and two symmetrical slide grooves are provided on the outer ring wall of the vertical rod, a pressure plate is slidably arranged between the two slide grooves, an infrared rangefinder is fixedly installed on the top of the main cylinder, and the bottom detection end of the infrared rangefinder extends into the inner cavity of the main cylinder, and the volume of the colloidal desiccant in the inner cavity of the filter cylinder expands to a certain extent after absorbing water vapor, and the expanded colloidal desiccant will push the pressure plate to move upward, and the set infrared rangefinder can monitor the distance of the pressure plate moving upward in real time; wherein, the rotating heating rod 1 can stir the expanded colloidal desiccant, so that the colloidal desiccant at the top can be spread more evenly, reducing the error of the pressure plate moving upward; if the distance of the pressure plate moving upward is within the set range, it proves that the water vapor in the part of the gas extracted by the air pump is within a reasonable range, and further proves that the humidity in the inner cavity of the incubator is within a reasonable range.
[0007] In the above-mentioned sampling device inside the carbon dioxide incubator, a mounting platform is fixedly installed on the top of the inner cavity of the side box, a motor is fixedly installed on the bottom of the mounting platform, a gear is fixedly installed on the bottom output end of the motor, a toothed sleeve is rotatably connected to the top of the main cylinder, and the outer teeth of the toothed sleeve are meshed with the gear, a toothed column is welded on the top of the vertical rod, and the toothed column is meshed with the inner teeth of the toothed sleeve, and a plurality of heating rods are fixedly installed on the side wall of the vertical rod, and the motor drives the gear to rotate, and the gear drives the toothed sleeve, the toothed column, the vertical rod and the plurality of heating rods to rotate. It should be noted that the heating rod does not perform heating operation at this time, and the rotating heating rod stirs the plurality of colloidal desiccants inside the filter cartridge, so that the colloidal desiccant is fully in contact with the water vapor in the gas, thereby enhancing the drying effect of the colloidal desiccant on the water vapor.
[0008] In the above-mentioned sampling device inside the carbon dioxide incubator, an electric push rod is fixedly installed on the top of the inner cavity of the side box, and the telescopic end of the bottom of the electric push rod is rotatably connected to the top of the toothed column, a plurality of heating rods are fixedly installed on the outer ring wall of the second gas delivery pipe, a humidifying pipe is connected on the outer ring wall of the bottom cylinder, and the side of the humidifying pipe away from the bottom cylinder is connected to the inner cavity of the incubator, and a solenoid valve is fixedly installed on the wall of the humidifying pipe, and the arranged electric push rod drives the toothed column, the vertical rod, the pressure plate, the second gas delivery pipe and the circular plate to move downward, and the downward pressure plate can squeeze the colloidal desiccant, and the motor drives the vertical rod and the heating rod one on the outer ring wall to rotate, and the arranged heating rod one can evenly heat the colloidal desiccant, and under the dual effects of squeezing and heating, the water vapor originally adsorbed by the colloidal desiccant is discharged and enters the cavity at the bottom of the inner cavity of the bottom cylinder through the air outlet channel under the action of the air pump, and finally the gas entrained with water vapor enters the inner cavity of the incubator through the humidifying pipe, so as to perform emergency humidification treatment.
[0009] In the above-mentioned sampling device inside a carbon dioxide incubator, two sleeves are welded at the bottom of the main cylinder, and a plurality of air outlet holes 2 are provided on the outer ring walls of the two sleeves. Springs are connected to the tops of the inner cavities of the two sleeves, and abutment rods are connected to the bottoms of the two springs. The two abutment rods are slidably arranged in the corresponding inner cavities of the sleeves respectively. A placement cavity is provided inside the two abutment rods, and an air outlet hole 1 connected to the corresponding placement cavity is provided on the outer ring walls of the two abutment rods. A drying tube is connected on the outer ring wall of the bottom cylinder, and the side of the drying tube away from the bottom cylinder is connected to the inner cavity of the incubator. An electromagnetic valve 3 is fixedly installed on the wall of the drying tube. The upward movement of the circular plate will push the abutment rod to move upward, so that the air outlet hole 1 on the outer ring wall of the abutment rod is aligned with the air outlet hole 2 on the outer ring wall of the sleeve, thereby allowing the activated carbon desiccant inside the placement cavity to participate in the cyclic drying operation, thereby enhancing the drying effect.
[0010] In the above-mentioned sampling device inside the carbon dioxide incubator, annular extension plates are welded to both upper and lower ends of the circular plate, and the annular extension plates enhance the sealing of the humidifying tube and the drying tube when the circular plate moves up and down.
[0011] Compared with the existing technology, the advantages of the sampling device inside the carbon dioxide incubator are:
[0012] 1. Several colloid desiccants placed in the inner cavity of the filter cartridge can adsorb and dry the water vapor in the gas to prevent the water vapor from condensing when it encounters cold and affecting the accuracy of subsequent detection;
[0013] 2. After absorbing water vapor, the colloidal desiccant in the inner cavity of the filter cartridge will expand to a certain extent. The expanded colloidal desiccant will push the pressure plate upward. The set infrared rangefinder can monitor the upward distance of the pressure plate in real time. If the upward distance of the pressure plate is within the set range, it proves that the water vapor in the part of the gas extracted by the air pump is within a reasonable range, and further proves that the humidity in the inner cavity of the incubator is within a reasonable range.
[0014] 3. If the distance the pressing plate moves upward is lower than the set range, it proves that the humidity in the incubator cavity is too low. Under the dual effects of squeezing and heating, the water vapor originally adsorbed by the colloidal desiccant is discharged and enters the cavity at the bottom of the inner cavity of the bottom cylinder through the air outlet channel under the action of the air pump. Finally, the gas carrying water vapor enters the inner cavity of the incubator through the humidification tube, thereby performing emergency humidification treatment;
[0015] 4. If the distance the pressure plate moves upward is higher than the set range, it proves that the humidity in the inner cavity of the incubator is too high. The upward pressure plate's own gravity no longer squeezes the colloidal desiccant in the inner cavity of the filter cartridge, thereby improving the adsorption and drying capacity of the colloidal desiccant. At the same time, under the action of the air pump, the gas inside the incubator flows back to the incubator through the drying tube, achieving a circulating drying effect, thereby performing emergency drying treatment. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of a sampling device inside a carbon dioxide incubator proposed by the present invention;
[0017] Figure 2 It is a schematic diagram of the inner cavity structure of the side box of the present invention;
[0018] Figure 3 It is a schematic diagram of the inner cavity structure of the main cylinder of the present invention;
[0019] Figure 4 It is a schematic diagram of the pressing plate structure of the present invention;
[0020] Figure 5 It is a schematic diagram of the circular plate structure of the present invention;
[0021] Figure 6 For the present invention Figure 5 A schematic diagram of the enlarged structure of part A;
[0022] Figure 7 It is a schematic diagram of the structure of the toothed sleeve and the toothed column of the present invention;
[0023] Figure 8 It is a schematic diagram of the inner cavity structure of the bottom tube of the present invention;
[0024] Fig. 9 It is a schematic diagram of the inner cavity structure of the sleeve of the present invention.
[0025] In the figure: 1. incubator; 2. side box; 3. main cylinder; 4. air pump; 5. analyzer; 6. bottom cylinder; 7. filter cartridge; 8. air inlet pipe; 9. air outlet pipe; 10. solenoid valve 1; 11. air delivery pipe 1; 12. air delivery pipe 2; 13. round plate; 14. air outlet channel; 15. annular channel; 16. air delivery pipe 3; 17. vertical rod; 18. slideway; 19. pressure plate; 20. arc sealing plate; 21. infrared ranging Instrument; 22. Mounting table; 23. Motor; 24. Gear; 25. Toothed sleeve; 26. Toothed column; 27. Heating rod 1; 28. Electric push rod; 29. Heating rod 2; 30. Humidifying tube; 31. Solenoid valve 2; 32. Sleeve; 33. Air outlet 2; 34. Spring; 35. Abutment rod; 36. Placement chamber; 37. Air outlet 1; 38. Drying tube; 39. Solenoid valve 3; 40. Annular extension plate. DETAILED DESCRIPTION
[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0027] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0028] Reference Figure 1-Figure 9A sampling device inside a carbon dioxide incubator comprises an incubator 1, a side box 2 is fixedly installed on the side wall of the incubator 1, a main cylinder 3, an air pump 4 and an analyzer 5 are fixedly installed in the inner cavity of the side box 2, a bottom cylinder 6 is welded to the bottom of the main cylinder 3, a filter cylinder 7 is welded to the bottom of the inner cavity of the main cylinder 3, two arc-shaped sealing plates 20 are welded to the bottom of the inner cavity of the main cylinder 3, and the two arc-shaped sealing plates 20 are respectively located at the front and rear sides of the filter cylinder 7, and the sides of the two arc-shaped sealing plates 20 close to the filter cylinder 7 are both in contact with the outer ring wall of the filter cylinder 7, an air inlet pipe 8 and an air outlet pipe 9 are connected on the side wall of the main cylinder 3, and the side of the air inlet pipe 8 away from the main cylinder 3 is connected to the inner cavity of the incubator 1, and the air outlet pipe 9 The side away from the main cylinder 3 is connected with the air pump 4, and a solenoid valve 10 is fixedly installed on the wall of the air inlet pipe 8. The external controller drives the solenoid valve 10 and the air pump 4 to open at fixed intervals. Under the action of the air pump 4, part of the gas in the inner cavity of the incubator 1 is sucked into the air inlet pipe 8, and then enters the inner cavity of the main cylinder 3 through the air inlet pipe 8. Since the two symmetrical arc-shaped sealing plates 20 are tightly attached to the front and rear sides of the filter cartridge 7, the gas can only move to the right through the filter cartridge 7. In this process, a number of colloidal desiccants placed in the inner cavity of the filter cartridge 7 can adsorb and dry the water vapor in the gas to prevent the water vapor from condensing when it encounters cold and affecting the accuracy of subsequent detection.
[0029] Furthermore, the bottom of the air pump 4 is connected to an air delivery pipe 11, and the side of the air delivery pipe 11 away from the air pump 4 is rotatably connected to the air delivery pipe 2 12, a circular plate 13 is welded on the outer ring wall of the air delivery pipe 2 12, and the outer ring wall of the circular plate 13 is connected to an air outlet channel 14 connected to the air delivery pipe 2 12, and the inner cavity of the bottom cylinder 6 is provided with an annular channel 15 connected to the air outlet channel 14, and the side wall of the bottom cylinder 6 is provided with an air delivery pipe 3 16 connected to the annular channel 15, and the side of the air delivery pipe 3 16 away from the bottom cylinder 6 is connected to the analyzer 5, and the top of the air delivery pipe 3 16 is welded with a vertical rod 17, and the outer ring wall of the vertical rod 17 is provided with two symmetrical slide grooves 18, and a pressure plate 19 is slidably provided between the two slide grooves 18, and the top of the main cylinder 3 is fixedly installed with Infrared rangefinder 21, and the bottom detection end of infrared rangefinder 21 extends into the inner cavity of main cylinder 3. After absorbing water vapor, the volume of colloidal desiccant in the inner cavity of filter cylinder 7 will expand to a certain extent. The expanded colloidal desiccant will push the pressing plate 19 to move upward. The set infrared rangefinder 21 can monitor the upward distance of pressing plate 19 in real time; wherein, the rotating heating rod 27 can stir the expanded colloidal desiccant, so that the colloidal desiccant at the top can be spread more evenly, reducing the error of pressing plate 19 moving upward; if the upward distance of pressing plate 19 is within the set range, it proves that the water vapor in part of the gas extracted by air pump 4 is within a reasonable range, and further proves that the humidity in the inner cavity of incubator 1 is within a reasonable range.
[0030] Furthermore, a mounting platform 22 is fixedly installed on the top of the inner cavity of the side box 2, a motor 23 is fixedly installed on the bottom of the mounting platform 22, a gear 24 is fixedly installed on the bottom output end of the motor 23, a toothed sleeve 25 is rotatably connected to the top of the main cylinder 3, and the outer teeth of the toothed sleeve are meshed with the gear 24, a toothed column 26 is welded on the top of the vertical rod 17, and the toothed column 26 is meshed with the inner teeth of the toothed sleeve 25, and a plurality of heating rods 27 are fixedly installed on the side wall of the vertical rod 17, the motor 23 drives the gear 24 to rotate, and the gear 24 drives the toothed sleeve 25, the toothed column 26, the vertical rod 17 and the plurality of heating rods 27 to rotate. It should be noted that the heating rod 27 does not perform heating operation at this time, and the rotating heating rod 27 stirs the plurality of colloidal desiccants inside the filter cartridge 7, so that the colloidal desiccant is fully in contact with the water vapor in the gas, thereby enhancing the drying effect of the colloidal desiccant on the water vapor.
[0031] Furthermore, an electric push rod 28 is fixedly installed on the top of the inner cavity of the side box 2, and the telescopic end at the bottom of the electric push rod 28 is rotatably connected to the top of the toothed column 26, a plurality of heating rods 29 are fixedly installed on the outer ring wall of the gas transmission pipe 2 12, a humidifying tube 30 is connected to the outer ring wall of the bottom tube 6, and the side of the humidifying tube 30 away from the bottom tube 6 is connected to the inner cavity of the incubator 1, and a solenoid valve 2 31 is fixedly installed on the tube wall of the humidifying tube 30. If the upward movement distance of the pressure plate 19 is lower than the set range, it proves that the water vapor in part of the gas extracted by the air pump 4 is lower than the reasonable range, and further proves that the humidity in the inner cavity of the incubator 1 is too low. At this time, the external controller monitors the value of the infrared rangefinder 21 and sends an alarm signal of too low humidity to the administrator. At the same time, the external controller drives the electric push rod 28, the motor 23, the heating rod 1 27, the heating rod 29 and the solenoid valve 2 31 When the air pump 4 is turned on, the electric push rod 28 drives the toothed column 26, the vertical rod 17, the pressure plate 19, the gas pipe 12 and the circular plate 13 to move downward, and the downward pressure plate 19 can squeeze the colloidal desiccant, and the motor 23 drives the vertical rod 17 and the heating rod 27 on the outer ring wall to rotate, and the heating rod 27 can evenly heat the colloidal desiccant. Under the dual effects of squeezing and heating, the water vapor originally adsorbed by the colloidal desiccant is discharged and enters the cavity at the bottom of the inner cavity of the bottom cylinder 6 through the air outlet channel 14 under the action of the air pump 4, and finally the gas entrained with water vapor enters the inner cavity of the incubator 1 through the humidification tube 30, so as to perform emergency humidification treatment; wherein, the middle section of the gas pipe 11 is a hose, and the up and down movement of the gas pipe 12 will drive the hose to stretch and contract adaptively, and the hose ensures the fluidity of the gas path.
[0032] Furthermore, two sleeves 32 are welded at the bottom of the main cylinder 3, and a plurality of air outlet holes 33 are provided on the outer ring walls of the two sleeves 32. The tops of the inner cavities of the two sleeves 32 are connected with springs 34, and the bottoms of the two springs 34 are connected with abutment rods 35, and the two abutment rods 35 are respectively slidably arranged in the inner cavities of the corresponding sleeves 32, and the two abutment rods 35 are provided with placement cavities 36 inside, and the outer ring walls of the two abutment rods 35 are provided with air outlet holes 37 connected with the corresponding placement cavities 36, and the outer ring wall of the bottom cylinder 6 is connected with a drying pipe 38, and the drying pipe 38 is away from the bottom cylinder 6. One side is connected with the inner cavity of the incubator 1, and a solenoid valve three 39 is fixedly installed on the wall of the drying tube 38. The upward movement of the circular plate 13 will push the abutment rod 35 to move upward, so that the air outlet hole 1 37 on the outer ring wall of the abutment rod 35 is aligned with the air outlet hole 2 33 on the outer ring wall of the sleeve 32, so that the activated carbon desiccant placed inside the cavity 36 participates in the cyclic drying operation, so as to enhance the drying effect; wherein, annular extension plates 40 are welded at both upper and lower ends of the circular plate 13, and the annular extension plates 40 provided enhance the sealing of the humidification tube 30 and the drying tube 38 when the circular plate 13 moves up and down.
[0033] Working principle: when in use, the external controller drives the solenoid valve 10 and the air pump 4 to open at fixed intervals. Under the action of the air pump 4, part of the gas in the inner cavity of the incubator 1 is sucked into the air inlet pipe 8, and then enters the inner cavity of the main tube 3 through the air inlet pipe 8. Since the two symmetrical arc-shaped sealing plates 20 are set close to the front and rear sides of the filter cartridge 7, the gas can only move to the right through the filter cartridge 7. In this process, a number of colloidal desiccants placed in the inner cavity of the filter cartridge 7 can adsorb and dry the water vapor in the gas to prevent the water vapor from condensing when it encounters cold and affecting the accuracy of subsequent detection; wherein, the motor 23 is set to drive the gear 24 to rotate, and the gear 24 drives the toothed sleeve 25, the toothed column 26, the vertical rod 17 and a number of heating rods 27 to rotate. It should be noted that the heating rod 27 does not perform heating at this time. The rotating heating rod 27 stirs the several colloidal desiccants inside the filter cartridge 7, so that the colloidal desiccant is fully in contact with the water vapor in the gas, thereby enhancing the drying effect of the colloidal desiccant on the water vapor;
[0034] The dried gas passes through the outlet pipe 9, the air pump 4, the gas supply pipe 1 11, the gas supply pipe 2 12, the outlet channel 14, the annular channel 15 and the gas supply pipe 3 16, and finally the gas enters the analyzer 5 for the detection of the carbon dioxide concentration; after absorbing the water vapor, the volume of the colloidal desiccant in the inner cavity of the filter cartridge 7 will expand to a certain extent, and the expanded colloidal desiccant will push the pressing plate 19 to move upward, and the set infrared rangefinder 21 can monitor the upward movement distance of the pressing plate 19 in real time; wherein, the rotating heating rod 27 can stir the expanded colloidal desiccant, so that the colloidal desiccant at the top can be spread more evenly, reducing the error of the upward movement of the pressing plate 19;
[0035] If the upward movement distance of the pressing plate 19 is within the set range, it proves that the water vapor in the part of the gas extracted by the air pump 4 is within a reasonable range, and further proves that the humidity in the inner cavity of the incubator 1 is within a reasonable range; if the upward movement distance of the pressing plate 19 is lower than the set range, it proves that the water vapor in the part of the gas extracted by the air pump 4 is lower than the reasonable range, and further proves that the humidity in the inner cavity of the incubator 1 is too low. At this time, the external controller monitors the value of the infrared rangefinder 21 and sends an alarm signal of low humidity to the administrator. At the same time, the external controller drives the electric push rod 28, the motor 23, the heating rod 1 27, the heating rod 29 and the solenoid valve 2 31 to open, and the set electric push rod 28 drives the toothed column 26, the vertical rod 17, the pressing plate 19, the gas pipe 2 12 and the circular plate 13 to move downward, and the downward pressing plate 19 can squeeze the colloidal desiccant, and the motor 23 drives The movable vertical rod 17 and the heating rod 27 on its outer ring wall rotate, and the set heating rod 27 can evenly heat the colloidal desiccant. Under the dual effects of squeezing and heating, the water vapor originally adsorbed by the colloidal desiccant is discharged and enters the cavity at the bottom of the inner cavity of the bottom cylinder 6 through the air outlet channel 14 under the action of the air pump 4. Finally, the gas wrapped with water vapor enters the inner cavity of the incubator 1 through the humidifying tube 30, so as to perform emergency humidification treatment; wherein, water for humidification is stored at the bottom of the inner cavity of the bottom cylinder 6, and the heating rod 29 after moving downward will sink into the water, and at the same time, the motor 23 can drive the gas pipe 2 12 and several heating rods 29 on its outer ring wall to rotate, and the set heating rod 29 can evenly heat this part of water, thereby accelerating the volatilization of this part of water, so as to enhance the effect of emergency humidification treatment;
[0036] If the upward movement distance of the pressing plate 19 is higher than the set range, it proves that the water vapor in the part of the gas extracted by the air pump 4 is higher than the reasonable range, and further proves that the humidity in the inner cavity of the incubator 1 is too high. At this time, the external controller sends an alarm signal of excessive humidity to the administrator, and then the external controller drives the electric push rod 28, the motor 23 and the electromagnetic valve 39 to open, and the set electric push rod 28 drives the toothed column 26, the vertical rod 17, the pressing plate 19, the gas pipe 2 12 and the circular plate 13 to move upward. After the upward movement, the pressing plate 19 no longer squeezes the colloidal desiccant in the inner cavity of the filter cartridge 7 by its own gravity, so that the adsorption and drying capacity of the colloidal desiccant is improved. At the same time, the air pump 4 Under the action, the gas inside the incubator 1 passes through the air inlet pipe 8, the filter cartridge 7, the air outlet pipe 9, the air pump 4, the air supply pipe 1 11, the air supply pipe 2 12, and the air outlet channel 14 in turn into the top of the inner cavity of the bottom cylinder 6, and finally flows back to the interior of the incubator 1 through the drying pipe 38, thereby achieving the effect of circulating drying, so as to perform emergency drying treatment; wherein, the upward movement of the circular plate 13 will push the abutment rod 35 to move upward, so that the air outlet hole 1 37 on the outer ring wall of the abutment rod 35 is aligned with the air outlet hole 2 33 on the outer ring wall of the sleeve 32, thereby allowing the activated carbon desiccant inside the placement cavity 36 to participate in the circulating drying operation, so as to enhance the effect of the emergency drying treatment.
[0037] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.
[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A sampling device inside a carbon dioxide incubator, comprising an incubator (1), characterized in that: A side box (2) is fixedly mounted on the side wall of the incubator (1); a main cylinder (3), an air pump (4) and an analyzer (5) are fixedly mounted in the inner cavity of the side box (2); a bottom cylinder (6) is welded to the bottom of the main cylinder (3); a filter cylinder (7) is welded to the bottom of the inner cavity of the main cylinder (3); two arc-shaped sealing plates (20) are welded to the bottom of the inner cavity of the main cylinder (3); the two arc-shaped sealing plates (20) are respectively located at the front and rear sides of the filter cylinder (7); and the sides of the two arc-shaped sealing plates (20) close to the filter cylinder (7) are both in contact with the outer ring wall of the filter cylinder (7); an air inlet pipe (8) and an air outlet pipe (9) are connected to the side wall of the main cylinder (3); and the side of the air inlet pipe (8) away from the main cylinder (3) is connected to the inner cavity of the incubator (1), and the air outlet pipe (9) is away from the main cylinder (3). One side of the bottom tube (6) is connected to the air pump (4); a solenoid valve (10) is fixedly installed on the wall of the air inlet pipe (8); the bottom of the air pump (4) is connected to an air supply pipe (11); the side of the air supply pipe (11) away from the air pump (4) is rotatably connected to an air supply pipe (12); a circular plate (13) is welded to the outer ring wall of the air supply pipe (12); the outer ring wall of the circular plate (13) is connected to an air outlet channel (14) connected to the air supply pipe (12); an annular channel (15) connected to the air outlet channel (14) is opened in the inner cavity of the bottom tube (6); an air supply pipe (16) connected to the annular channel (15) is arranged on the side wall of the bottom tube (6); and the side of the air supply pipe (16) away from the bottom tube (6) is connected to the analyzer (5).
2. A sampling device inside a carbon dioxide incubator according to claim 1, characterized in that: The middle section of the gas delivery pipe 1 (11) is a hose.
3. The sampling device inside the carbon dioxide incubator according to claim 1, characterized in that: A vertical rod (17) is welded to the top of the gas delivery pipe (16), and two symmetrical slide grooves (18) are provided on the outer ring wall of the vertical rod (17). A pressure plate (19) is slidably arranged between the two slide grooves (18). An infrared rangefinder (21) is fixedly installed on the top of the main tube (3), and the bottom detection end of the infrared rangefinder (21) extends into the inner cavity of the main tube (3).
4. A sampling device inside a carbon dioxide incubator according to claim 3, characterized in that: A mounting platform (22) is fixedly mounted on the top of the inner cavity of the side box (2), a motor (23) is fixedly mounted on the bottom of the mounting platform (22), a gear (24) is fixedly mounted on the bottom output end of the motor (23), a toothed sleeve (25) is rotatably connected to the top of the main cylinder (3), and the outer teeth of the toothed sleeve are meshed with the gear (24), a toothed column (26) is welded to the top of the vertical rod (17), and the toothed column (26) is meshed with the inner teeth of the toothed sleeve (25), and a plurality of heating rods (27) are fixedly mounted on the side wall of the vertical rod (17).
5. The sampling device inside the carbon dioxide incubator according to claim 4, characterized in that: An electric push rod (28) is fixedly installed on the top of the inner cavity of the side box (2), and the telescopic end at the bottom of the electric push rod (28) is rotatably connected to the top of the toothed column (26). A plurality of heating rods (29) are fixedly installed on the outer ring wall of the second gas transmission pipe (12). A humidifying pipe (30) is connected to the outer ring wall of the bottom cylinder (6), and the side of the humidifying pipe (30) away from the bottom cylinder (6) is connected to the inner cavity of the incubator (1). A solenoid valve (31) is fixedly installed on the wall of the humidifying pipe (30).
6. The sampling device inside the carbon dioxide incubator according to claim 1, characterized in that: Two sleeves (32) are welded at the bottom of the main cylinder (3), and a plurality of air outlet holes (2) (33) are provided on the outer ring walls of the two sleeves (32). The tops of the inner cavities of the two sleeves (32) are connected to springs (34), and the bottoms of the two springs (34) are connected to abutment rods (35), and the two abutment rods (35) are respectively slidably arranged in the inner cavities of the corresponding sleeves (32). A placement cavity (36) is provided inside the two abutment rods (35), and an air outlet hole (37) connected to the corresponding placement cavity (36) is provided on the outer ring walls of the two abutment rods (35). A drying tube (38) is connected to the outer ring wall of the bottom cylinder (6), and the side of the drying tube (38) away from the bottom cylinder (6) is connected to the inner cavity of the incubator (1), and a solenoid valve (39) is fixedly installed on the tube wall of the drying tube (38).
7. The sampling device inside the carbon dioxide incubator according to claim 1, characterized in that: Annular extension plates (40) are welded to the upper and lower ends of the circular plate (13).