Automatic air bag cleaning machine

Abstract

The invention relates to the technical field of environmental protection monitoring, in particular to an automatic air bag cleaning machine which comprises a base and a machine box, the machine box is located above the base, a key type switch and a plurality of air nozzles are arranged on the machine box, air bags are detachably connected to the tail ends of the air nozzles, and each air nozzle is correspondingly provided with a detection prompting lamp. The detection prompting lamp is electrically connected with the air pressure sensor; a four-way valve is arranged in the case, the internal structure of the four-way valve is that three branch pipes are gathered to a header pipe, the header pipe is externally connected with an air nozzle, and the branch pipes are respectively communicated with an air path pipe, a liquid pipe and a waste pipe; according to the air bag cleaning device, integral control can be achieved through the key type switch, inflation is conducted through the air path pipe, the recycled air bag is cleaned through the liquid pipe, discharging is completed through the waste material pipe, manual operation can be reduced in the air bag inflation cleaning process, time is saved, efficiency is improved, and the use experience is improved.

Description

Technical Field

[0001] The invention relates to the technical field of environmental monitoring, and in particular to an automatic air bag cleaning machine. Background Art

[0002] The gas bag is a sampling device used for instrument analysis during sample collection or pretreatment. It is used to collect or temporarily store the gas used for detection. In terms of material, there are many types of volumetric gas bags, and the basic structure is a bag body and a gas port end.

[0003] In order to avoid the contamination of historical residual substances in the air bag and affect the experimental data, the air bag will be cleaned before and after sampling. The cleaning process is basically operated manually. The experimenter fills the air bag with high-purity nitrogen or dehydrogenated air, and then squeezes the gas out, repeating the operation to finally achieve the cleaning purpose. However, this method has a slow cleaning speed and cumbersome steps, so the efficiency of cleaning the air bag is low, and manual cleaning and exhaust may not be thorough, which affects the measurement results; secondly, the experimenter may use the device to exhaust the gas, which may cause a series of situations such as improper operation, causing damage to the air bag and affecting the sealing of the air bag. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic air bag cleaning machine, aiming to solve the technical problems of poor efficiency and experience caused by manual labor during the recycling of existing sampling air bags.

[0005] To achieve the above object, the present invention provides an automatic air bag cleaning machine, comprising a base and a chassis, wherein the chassis is located above the base, and a push-button switch and a plurality of air nozzles are provided on the chassis, and an air bag is detachably connected to the end of the air nozzle, and each air nozzle is correspondingly equipped with a detection indicator light, and the detection indicator light is electrically connected to an air pressure sensor;

[0006] The chassis is provided with a four-way valve, the internal structure of the four-way valve is that three branch pipes are gathered into a main pipe, the main pipe is externally connected to a gas nozzle, the branch pipes are respectively connected to the gas pipe, the liquid pipe and the waste pipe, and three switch valves are provided outside the three branch pipes, corresponding to the first switch valve, the second switch valve and the third switch valve, wherein the first switch valve controls the gas pipe, the second switch valve controls the liquid pipe, and the third switch valve controls the waste pipe, the liquid pipe is provided with a liquid inlet pump, and the waste pipe is provided with a vacuum pump;

[0007] An air inlet, a liquid inlet, and a waste outlet are provided on the side of the base. One end of the air inlet is connected to the air pipe, and the other end is connected to the air source; one end of the liquid inlet is connected to the liquid pipe, and the other end is connected to the cleaning liquid; the waste pipe is connected to the waste container through the waste outlet;

[0008] The gas circuit pipe is equipped with a branch temperature control component, and the branch switch valve controls the switch of the branch temperature control component. The branch temperature control component extends outside the chassis and is connected to the main temperature control component.

[0009] Preferably, the number of the air nozzles is 20 in total, and the corresponding air nozzles can be connected to 20 air bags at the same time.

[0010] Preferably, the air bag is a Telder polyvinyl fluoride air bag.

[0011] Preferably, the gas source is high-purity nitrogen.

[0012] Preferably, the main temperature control component, the branch temperature control component, the air pressure sensor, the liquid inlet pump, the vacuum pump and the four-way valve are all controlled by a distributor in the chassis, and the distributor is electrically connected to the push-button switch.

[0013] Preferably, the air pressure sensor is connected to the air bag to detect the pressure inside the air bag and reflect the real-time situation to the detection prompt light.

[0014] Preferably, the cleaning liquid is divided into two parts, one part is 75% alcohol liquid, and the other part is n-ethane liquid.

[0015] The present invention provides an automatic air bag cleaning machine, comprising a base and a chassis, wherein the chassis is located above the base, and is provided with a push-button switch and a plurality of air nozzles, the air bag is detachably connected to the end of the air nozzle, and each air nozzle is correspondingly equipped with a detection prompt light, and the detection prompt light is electrically connected to an air pressure sensor; a four-way valve is arranged in the chassis, and the internal structure of the four-way valve is that three branch pipes are converged into a main pipe, the main pipe is externally connected to the air nozzles, and the branch pipes are respectively connected to an air pipe, a liquid pipe and a waste pipe; the present invention can use a push-button switch for overall control, inflate through the air pipe, use a liquid pipe to clean the recycled air bag and complete external discharge through the waste pipe, which can reduce manual operation during the air bag inflation and cleaning process, save time and improve efficiency, thereby enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of an automatic air bag cleaning machine of the present invention.

[0018] Figure 2 It is a schematic diagram of the structure inside the four-way valve of the automatic air bag cleaning machine of the present invention.

[0019] 1-button switch, 2-second switch valve, 3-branch temperature control component, 4-branch switch valve, 5-total temperature control component, 6-chassis, 7-gas pipe, 8-air inlet, 9-gas source, 10-cleaning liquid, 11-waste container, 12-base, 13-waste outlet, 14-liquid inlet, 15-vacuum pump, 16-liquid inlet pump, 17-third switch valve, 18-four-way valve, 19-air nozzle, 20-air bag, 21-air pressure sensor, 22-detection warning light, 23-first switch valve. DETAILED DESCRIPTION

[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0021] See also Figure 1 and Figure 2 The present invention provides an automatic air bag cleaning machine, comprising a base 12 and a chassis 6, wherein the chassis 6 is located above the base 12, and a push-button switch 1 and a plurality of air nozzles 19 are provided on the chassis 6, and an air bag 20 is detachably connected to the end of the air nozzle 19, and each air nozzle 19 is correspondingly provided with a detection indicator light 22, and the detection indicator light 22 is electrically connected to an air pressure sensor 21;

[0022] The chassis 6 is provided with a four-way valve 18, the internal structure of the four-way valve 18 is that three branch pipes are gathered into a main pipe, the main pipe is externally connected to a gas nozzle 19, the branch pipes are respectively connected to the gas pipe 7, the liquid pipe and the waste pipe, and three switch valves are provided outside the three branch pipes, corresponding to the first switch valve 23, the second switch valve 2, and the third switch valve 17, wherein the first switch valve 23 controls the gas pipe 7, the second switch valve 2 controls the liquid pipe, and the third switch valve 17 controls the waste pipe. A liquid inlet pump 16 is provided on the liquid pipe, and a vacuum pump 15 is provided on the waste pipe;

[0023] The side of the base 12 is provided with an air inlet 8, a liquid inlet 14, and a waste outlet 13. One end of the air inlet 8 is connected to the air pipe 7, and the other end is connected to the air source 9; one end of the liquid inlet 14 is connected to the liquid pipe, and the other end is connected to the cleaning liquid 10; the waste pipe is connected to the waste container 11 through the waste outlet 13, and the waste outlet 13 is responsible for discharging the waste after the air bag 20 is cleaned into the waste container 11;

[0024] The branch temperature control component 3 is mounted on the gas circuit pipe 7 , and the branch switch valve 4 controls the switch of the branch temperature control component 3 . The branch temperature control component 3 extends outside the chassis 6 and is connected to the main temperature control component 5 .

[0025] The air bag 20 adopts a Telder polyvinyl fluoride air bag with a volume of 2L. Polyvinyl fluoride has the characteristics of chemical corrosion resistance and high temperature resistance. It is suitable for gas collection and air bag 20 cleaning in various sampling situations. It has low permeability to gas and is easy to seal and preserve gas to prevent gas volatilization.

[0026] The gas source 9 uses high-purity nitrogen. The chemical properties of high-purity nitrogen are very stable and it is not easy to react with other substances at room temperature. In the cleaning process of the air bag 20, the use of high-purity nitrogen can effectively remove the impurities and volatile organic compounds such as VOCs remaining inside the air bag 20, thereby effectively cleaning the air bag 20 and ensuring the purity of the sample and the accuracy of the data results. The chemical inertness of high-purity nitrogen during the cleaning process also ensures the safety of the operation.

[0027] The chassis 6 is in the shape of a rectangular parallelepiped, and the main body of the chassis 6 is placed on the base 12. The chassis 6 includes four faces, each of which includes 5 groups of air bag cleaning groups, each group includes an air nozzle 19 and a detection prompt light 22. The overall air bag cleaning machine includes a total of 20 cleaning groups, which can realize cleaning operations on multiple faces at the same time, thereby improving cleaning efficiency.

[0028] The total temperature control component 5, the branch temperature control component 3, the air pressure sensor 21, the liquid inlet pump 16, the vacuum pump 15 and the four-way valve 18 are all controlled by the distributor inside the chassis 6, and the distributor is connected to the push-button switch 1. Before the automatic air bag cleaning machine is operated, the process of each complete cleaning of the air bag 20 is set to be at a flow rate of 1L / min and a time of 2min, first introducing the air source 9 and then discharging it; then introducing the cleaning liquid at a flow rate of 1L / min and a time of 2min, and then discharging it, and repeating this process many times. Finally, introducing the air source 9 at a flow rate of 1L / min and a time of 2min to keep the air bag dry.

[0029] The branch temperature control component 3 is connected to the gas circuit pipe 7, and a branch switch valve 4 is mounted on the branch temperature control component 3. When the branch switch valve 4 is opened, the branch temperature control component starts to heat, and the heating temperature is set to 80°C. The branch temperature control component 3 corresponds to the branch switch valve 4 one by one, and all the branch temperature control components 3 are controlled by the main temperature control component 5. Any branch temperature control component 3 can be operated independently to achieve the effect of intelligent heating and temperature control.

[0030] Furthermore, before the operation of the automatic airbag cleaning machine, it is set that during the air intake process, the first switch valve 23 automatically opens, and the second switch valve 2 and the third switch valve 17 automatically close; during the liquid intake process, the second switch valve 2 automatically opens, and the first switch valve 23 and the third switch valve 17 automatically close; during the waste discharge process, only the third switch valve 17 is in an open state, so as to realize a pollution-free, fully automatic intelligent airbag cleaning process.

[0031] The air bag cleaning liquid 10 used is 75% alcohol and n-ethane. As organic solvents, these two can effectively dissolve the grease, wax, organic pollutants and other substances remaining on the inner wall of the air bag. Moreover, these two have stable chemical properties and fast volatility. After cleaning, they can evaporate quickly from the air bag and are not likely to cause residual substances to affect subsequent experimental measurements. From the perspective of economic benefits, the price of 75% alcohol and n-ethane is relatively cheap and can be used as common liquids for air bag cleaning.

[0032] The specific usage of the present invention is as follows: first, set the intake flow rate of the air source 9 and the flow rate of the cleaning liquid 10 to 1L / min each time and the time to 2min, and set the cleaning process to first introduce the air source 9, then discharge it, and then inject the cleaning liquid 10 for cleaning, and repeat this process many times to ensure thorough cleaning. Finally, the air source 9 is ventilated to keep the air bag dry; insert the air bag 20 into the air nozzle 19, open the cleaning device, the air inlet 8, the liquid inlet 14, the waste outlet 13, the liquid inlet pump 16 and the vacuum pump 15, and clean the air bag 20 to be cleaned according to the above-set cleaning process. At the same time, the experimenter can choose whether to turn on the cleaning gas and the flow path heating, the air bag 20 heating and other functions according to the cleaning requirements of the air bag to be cleaned; the waste generated by the cleaning is directly discharged to the waste container through the waste pipe.

[0033] In order to better detect whether there is no residue in the air bag 20, the gas source 9 can be replaced with dehydrogenated air. After the above-mentioned air bag 20 cleaning step is completed, the dehydrogenated air is injected and the air is left at room temperature for 24 hours before measurement.

[0034] In summary, the automatic air bag cleaning machine provided by this embodiment has the following technical effects:

[0035] (1) The invention provides an automatic air bag cleaning machine that can effectively clean air bags in batches in an efficient, easy-to-operate manner, that is, a dispenser and a push-button switch are connected to the air bag to be cleaned and a four-way valve, and an air pressure sensor, a temperature control component, etc. are installed. A vacuum pump, a liquid inlet pump, a cleaning liquid, an air source, etc. are used to complete multiple air bag cleaning and heating cycles in batches until the cleaning target is achieved. At the same time, during the cleaning process, an air pressure sensor is used to automatically control the air bag pressure to identify whether the air bag has been cleaned or whether it has been completely vented, so as to ensure that the air bag is clean and prevent the air bag from bursting due to excessive inflation. The invention greatly reduces manual operation, saves time and improves efficiency, and ensures that the air bag can be thoroughly cleaned, thereby improving the accuracy of the experimental data;

[0036] (2) The automatic air bag cleaning machine disclosed in the present invention uses an air pressure sensor connected to a detection indicator light, which can ensure that the experimenter can timely observe and grasp the air bag cleaning situation and the operating status of the instrument during the operation and cleaning process;

[0037] (3) The automatic airbag cleaning machine disclosed in the present invention can achieve the purpose of automatic airbag cleaning. The experimenter can complete the cleaning process of the remaining steps with one-click operation, and the airbag installation adopts the quick plug-in operation. The whole set of operations only requires loading and unloading the airbag and one-click start. The process is convenient and fast, further saving manual operation time and improving cleaning efficiency;

[0038] (4) The automatic air bag cleaning machine disclosed in the present invention is equipped with 20 sets of air bag cleaning interfaces, which can complete the cleaning needs of 20 air bags in batches at one time, with high cleaning efficiency;

[0039] (5) The automatic air bag cleaning machine disclosed in the present invention has a fully inert gas path, a cleaning gas heating function, a flow path heating function, and an air bag heating function, which ensures that the cleaning is clean and the residue is below the detection limit, meeting the quality control requirements for air bag cleaning in various standards;

[0040] (6) The automatic air bag cleaning machine disclosed in the present invention can independently set the cleaning sequence, number of times, and flow rate of gas and liquid, etc. The experimenter can independently and flexibly control the heating function and the cleaning function to improve the working efficiency of the device.

[0041] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. An automatic air bag cleaning machine, characterized in that: The invention comprises a base (12) and a chassis (6), wherein the chassis (6) is located above the base (12), a push-button switch (1) and a plurality of air nozzles (19) are provided on the chassis (6), an air bag (20) is detachably connected to the end of the air nozzle (19), each air nozzle (19) is correspondingly provided with a detection indicator light (22), and the detection indicator light (22) is electrically connected to an air pressure sensor (21); The chassis (6) is provided with a four-way valve (18), the internal structure of the four-way valve (18) is that three branch pipes are gathered into a main pipe, the main pipe is externally connected to a gas nozzle (19), the branch pipes are respectively connected to the gas pipe (7), the liquid pipe and the waste pipe, and three switch valves are provided outside the three branch pipes, which correspond to a first switch valve (23), a second switch valve (2), and a third switch valve (17), wherein the first switch valve (23) controls the gas pipe (7), the second switch valve (2) controls the liquid pipe, and the third switch valve (17) controls the waste pipe, a liquid inlet pump (16) is provided on the liquid pipe, and a vacuum pump (15) is provided on the waste pipe; An air inlet (8), a liquid inlet (14), and a waste outlet (13) are provided on the side of the base (12); one end of the air inlet (8) is connected to the air pipe (7), and the other end is connected to the air source (9); one end of the liquid inlet (14) is connected to the liquid pipe, and the other end is connected to the cleaning liquid (10); the waste pipe is connected to the waste container (11) through the waste outlet (13); The gas circuit pipe (7) carries a branch temperature control component (3), the branch switch valve (4) controls the switch of the branch temperature control component (3), and the branch temperature control component (3) extends outside the chassis (6) and is connected to the main temperature control component (5).

2. The automatic air bag cleaning machine according to claim 1, characterized in that: The number of the air nozzles (19) is 20 in total, and the corresponding air nozzles (19) can be connected to 20 air bags (20) at the same time.

3. The automatic air bag cleaning machine according to claim 2, characterized in that: The air bag (20) is a Telder polyvinyl fluoride air bag.

4. The automatic air bag cleaning machine according to claim 3, characterized in that: The gas source (9) is high-purity nitrogen.

5. The automatic air bag cleaning machine according to claim 4, characterized in that: The main temperature control component (5), the branch temperature control component (3), the air pressure sensor (21), the liquid inlet pump (16), the vacuum pump (15) and the four-way valve (18) are all controlled by a distributor in the chassis (6), and the distributor is electrically connected to the push-button switch (1).

6. The automatic air bag cleaning machine according to claim 5, characterized in that: The air pressure sensor (21) is connected to the air bag (20) to detect the pressure inside the air bag (20) and reflect the real-time situation to the detection warning light (22).

7. The automatic air bag cleaning machine according to claim 6, characterized in that: The cleaning liquid (10) is divided into two parts, one part is 75% alcohol liquid, and the other part is n-ethane liquid.

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