Liquid drug deposition head and deposition device
By designing an adsorption head for chemical solutions to remove sediment, and utilizing a combination of suction pipes and blowing pipes with a positive pressure chamber and a cleaning brush, the problems of low sediment cleaning efficiency and large chemical disturbance at the bottom of the reaction tank are solved, achieving a high-efficiency and low-disturbance sediment cleaning effect.
Patent Information
- Application Number
- CN202510184677.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2045-02-19
AI Technical Summary
Existing technologies for cleaning sediments at the bottom of reaction tanks suffer from problems such as low efficiency, significant disturbance to the chemical solution, high cost, or unsuitability of the equipment, making it difficult to efficiently clean firmly attached sediments.
The device employs a drug deposit adsorption head, which combines an air suction tube and an air blowing tube. It utilizes a positive pressure chamber and a cleaning brush to adsorb and scrape the deposits, minimizing disturbance to the drug solution.
It achieves efficient cleaning of sediment at the bottom of the reaction tank, reduces chemical loss, and lowers energy consumption and equipment complexity during the cleaning process.
Smart Images

Figure CN119838978B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of clean and environmentally friendly equipment technology for industrial production, specifically to a chemical liquid deposit adsorption head and a deposit cleaning device. Background Technology
[0002] Many machining processes require operation in chemical solutions, such as electrolysis, electroplating, acid etching, alkaline etching, oxidation, and dyeing. In large-scale industrial production, large reaction tanks are typically set up, with corresponding chemical solutions poured into them. Workpieces requiring electroplating, acid etching, or oxidation are then immersed in the chemical solutions in the reaction tank to carry out the relevant processes. Over time, impurities inevitably accumulate in the reaction tank, and these impurities deposit at the bottom of the tank, affecting the stability of the chemical parameters of the chemical solutions.
[0003] There are two ways to clean these sediments: (1) Clean the tank after emptying the liquid. The advantage of this method is that it is thorough and easy to operate. The disadvantage is that it is costly, the liquid that is emptied usually needs to be scrapped, and the operation takes a long time. Emptying the liquid, cleaning, and refilling the liquid all take a lot of time and the process cannot be stopped. During this period, the tank cannot resume production. (2) Keep the liquid in the tank and use equipment to directly clean the sediment at the bottom of the tank.
[0004] In existing technologies, underwater sediment removal can be achieved using sludge scrapers, sludge suction machines, and airlift devices. Sludge scrapers are installed at the bottom of the tank, with scrapers collecting sludge into hoppers for easy discharge. Sludge scrapers are simple to operate, easy to maintain, and highly efficient, but they need to be installed during the construction of the reaction tank.
[0005] A sludge suction machine uses vacuum or siphon principles to draw sludge into pipes and transport it to a sludge discharge system. The advantages of a sludge suction machine are its simple structure and high efficiency. The disadvantages are that it can only clean thin, loose sediments, and it also removes a large amount of chemical cleaning solution.
[0006] Airlift devices inject compressed air into the water to create rising bubbles. The buoyancy and lifting effect of these bubbles then bring bottom sediments (including silt and other deposits) to the surface. This method is energy-efficient, but it causes significant disturbance to the chemical solution and is not very effective for firmly attached sediments.
[0007] There are also some other types of equipment, such as underwater cleaning robots and high-pressure jet cleaning devices, which are only suitable for cleaning sediments at the bottom of the water and are difficult to use in the chemical environment of industrial reaction tanks. Summary of the Invention
[0008] In view of the above-mentioned deficiencies or defects in the prior art, the present invention provides a drug liquid sediment adsorption head that can clean the sediment at the bottom of the reaction tank in liquid and reduce the disturbance to the liquid in the reaction tank.
[0009] The drug deposit adsorption head includes an air suction tube, an air blowing tube, a water-proof cover, and a cleaning brush.
[0010] A suction tube is used to remove sediment. The suction tube has an adsorption port at the bottom and is connected to a negative pressure source.
[0011] A water-proof cover is installed at the bottom of the suction pipe. The top of the water-proof cover is fitted onto the suction pipe and sealed, while the bottom is open. The water-proof cover is inverted in a bowl shape on the bottom of the pool. The water-proof cover and the bottom of the pool form a positive pressure cavity, and the suction port is placed inside the positive pressure cavity with its opening facing downwards.
[0012] The air blowing pipe is connected to a positive pressure source and has multiple air outlets. The air outlets of the air blowing pipe are arranged around the bottom edge of the waterproof cover.
[0013] The cleaning brush is arranged around the suction port and is driven by a cleaning brush driver. The brush bristles are able to scrape away sediment at the bottom of the pool.
[0014] In some embodiments, an airflow sensor and an airflow control valve are provided on the blowing pipe, and an airflow sensor and an airflow control valve are provided on the suction pipe; the airflow rate of the blowing pipe is greater than the airflow rate of the suction pipe.
[0015] Preferably, the intake airflow rate is 102%-105% of the intake airflow rate.
[0016] In some embodiments, a ring-shaped enclosure is installed at the lower edge of the water-proof cover. The enclosure is made of an elastic and deformable material, and the bottom of the enclosure contacts the bottom of the pool during operation.
[0017] In some embodiments, the enclosure includes an inner layer and an outer layer with a cavity between them. The tops of both the inner and outer layers are fixed to the lower edge of the waterproof cover, and the bottoms of the inner and outer layers are connected and fused together.
[0018] The air blowing pipe is connected to the cavity inside the enclosure, and the air outlet is opened around the inner layer to connect the cavity and the positive pressure cavity.
[0019] In some embodiments, the cleaning brush is arranged around the suction port, and the height of the cleaning brush is adjustable.
[0020] The cleaning brush is a disc-shaped brush head with multiple brushes arranged around the suction port. The bristles of the disc brush head face downward and can be driven to rotate along the axis by the cleaning brush driver.
[0021] Alternatively, the cleaning brush may be a plurality of horizontally arranged brush rollers, with multiple brush rollers connected end to end around the suction head. The brush rollers can be driven to rotate by the cleaning brush driver, and the bristles at the bottom of the brush rollers move toward the suction head.
[0022] In addition to the drug deposit adsorption head described above, this invention also provides a drug deposit adsorption device, including a body, a walking system, a servo system, a support arm, and an adsorption head; wherein the adsorption head is the drug deposit adsorption head provided above.
[0023] A walking system is installed at the bottom of the machine body, and a servo system is installed on the machine body. The execution end of the servo system is connected to the support arm, and the end of the support arm is connected to the adsorption head. The servo system is used to drive the adsorption head to move.
[0024] The machine body is also equipped with a positive pressure source and a negative pressure source. The positive pressure source is connected to the blowing pipe, and the negative pressure source is connected to the suction pipe.
[0025] In some implementations, the upper end of the support arm is connected to a servo system, and the bottom of the support arm is connected to an adsorption head; during operation, the top of the support arm is above the liquid surface, the bottom of the support arm and the adsorption head are immersed below the liquid surface, and the adsorption head is in close contact with the bottom of the pool.
[0026] The support arm has a flange at the top, and the support arm is detachably connected to the servo system through the flange; the bottom of the support arm has an adjustable elbow, and the adsorption head is detachably connected to the support arm through the elbow.
[0027] In some embodiments, the support arm is a hollow tube, which acts as part of the air intake tube, through which the air intake airflow flows.
[0028] A spiral conveyor rod is installed inside the support arm, and a drive motor is fixed at the top of the support arm. The drive motor drives the spiral conveyor rod to rotate.
[0029] An air outlet is provided on the top side of the support arm, which is connected to a negative pressure source through a pipe. The bottom opening of the support arm is connected to the adsorption port of the adsorption head.
[0030] In some embodiments, a controller is provided on the body, and the controller is electrically connected to an intake flow sensor, an intake flow control valve, an inhalation flow sensor, and an inhalation flow control valve respectively; the intake flow sensor and the inhalation flow sensor send the collected data to the controller, and the controller controls the opening and closing of the intake flow control valve and the inhalation flow control valve to control the intake flow and the inhalation flow, maintaining the intake flow at 102%-105% of the inhalation flow.
[0031] In traditional underwater sediment cleaning processes, sediment is transported using liquid as the medium. During cleaning, a large amount of liquid is removed along with the sediment. For older, harder sediments, scrapers or other tools are needed to loosen the sediment before it is suctioned away. Because these tools disturb the water during loosening, they accelerate sediment dispersion. To prevent this, a higher suction flow rate is required to remove more liquid. Otherwise, the disturbed liquid can carry sediment away from the suction head during loosening, causing it to re-attach to the bottom after settling, thus affecting the cleaning effect.
[0032] The adsorption head for drug sediments using the above-mentioned technical solution of this invention has the following effects: Firstly, a water-repellent hood is installed outside the adsorption port. The opening of the water-repellent hood faces downwards and covers the bottom of the reaction tank. The water-repellent hood and the tank bottom together form a closed positive pressure chamber. Gas is blown into the water-repellent hood using an air blowing pipe. As long as the air flow rate blown into the positive pressure chamber by the air blowing pipe is greater than the gas flow rate drawn out of the positive pressure chamber by the air suction pipe, the pressure inside the positive pressure chamber will be greater than the surrounding water pressure. The positive pressure chamber will then be filled with gas, and excess gas will be discharged from the gap between the bottom edge of the water-repellent hood and the tank bottom.
[0033] The suction tube uses air from the positive pressure chamber as a medium to adsorb and remove deposits. To facilitate the adsorption of harder deposits, cleaning brushes are installed around the adsorption port inside the positive pressure chamber. The bristles of the cleaning brushes scrape off the deposits, which are then sucked away by the suction tube. A water-repellent cover prevents the deposits scraped off by the cleaning brushes from splashing everywhere. Attached Figure Description
[0034] Figure 1 This is a schematic diagram of the cleaning head and support arm portion proposed in this invention;
[0035] Figure 2 This is a schematic diagram of the main body (excluding the adsorption head) of the sediment adsorption device proposed in this invention;
[0036] Explanation of reference numerals in the attached figures
[0037] 1-Waterproof cover; 2-Suction pipe; 3-Blowing pipe; 4-Cleaning brush; 5-Positive pressure chamber; 6-Enclosure; 6a-Inner layer; 6b-Outer layer; 6c-Air outlet; 7-Support arm; 8-Screw conveyor rod; 9-Machine body; 10-Servo system; 11-Walking system. Detailed Implementation
[0038] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0039] This invention provides a drug solution deposit adsorption head, such as... Figure 1 As shown, it includes an air inhalation tube 2, an air blowing tube 3, a water shield 1, and a cleaning brush 4.
[0040] The suction pipe 2 is used to remove sediment. The bottom of the suction pipe 2 has an adsorption port, and the suction pipe 2 is connected to a negative pressure source. A negative pressure source is a device capable of generating a vacuum negative pressure; in this application, it is a sludge cleaning device, and existing sludge cleaning equipment can be referenced.
[0041] A water-proof cover 1 is installed at the bottom of the suction pipe 2. The top of the water-proof cover 1 is fitted over the suction pipe 2 and sealed, while the bottom is open. The water-proof cover 1 is inverted in a bowl shape on the bottom of the pool. The water-proof cover 1 and the bottom of the pool form a positive pressure cavity 5, with the suction port facing downwards and placed inside the positive pressure cavity 5.
[0042] The air blowing pipe 3 is connected to a positive pressure source. The air blowing pipe 3 has multiple air outlets 6c, which are arranged around the bottom edge of the waterproof cover 1.
[0043] The cleaning brush 4 is installed inside the water-proof cover 1 and is arranged around the suction port. The cleaning brush 4 is driven by the cleaning brush driver and can scrape the sediment at the bottom of the pool.
[0044] The suction tube 2 needs to remove deposits while transmitting airflow, so the inner wall of the suction tube 2 should be kept as smooth as possible and have fewer bends, especially large-angle bends, to prevent deposits from accumulating in the suction tube 2. The blowing tube 3 only needs to be able to transmit airflow stably and can be a regular flexible tube.
[0045] The water-proof cover 1 is shaped like an inverted bowl, and an adsorption port and cleaning brush 4 are installed inside. The water-proof cover 1 is usually made of stainless steel or hard plastic. The top opening of the water-proof cover 1 allows the suction pipe 2 to pass through. The suction pipe 2 extends from the top of the water-proof cover into the positive pressure chamber 5 of the water-proof cover 1. The air blowing pipe 3 passes through the top of the water-proof cover 1 and is sealed to prevent air leakage or liquid seepage.
[0046] Because some sediments have hardened over a long period, liquids are effective at adsorption and cleaning. However, using gas as the medium weakens the adsorption effect. Therefore, cleaning brushes 4 are installed around the adsorption port. The bristles of the cleaning brushes 4 scrape the sediments at the bottom of the pool, loosening them and making them easier to adsorb. Several scrapers can also be installed outside the cleaning brushes 4, serving the same function as the cleaning brushes 4. The cleaning brushes 4 are driven by a cleaning brush driver to move or rotate, increasing their cleaning ability. The bristles of the cleaning brushes 4 are preferably made of metal.
[0047] To ensure the adsorption head of this invention can function properly underwater, the positive pressure chamber 5 inside the watertight cover 1 needs to be maintained in a gaseous environment, and the liquid needs to be discharged outside the watertight cover 1. This requires the air flow rate blown into the watertight cover 1 by the air blowing pipe 3 to be greater than the air flow rate sucked away by the air suction pipe 2. The air blowing pipe 3 is equipped with an air flow sensor and an air flow control valve, and the air suction pipe 2 is equipped with an air suction flow sensor and an air suction flow control valve. The air flow rate of the air blowing pipe 3 is greater than the air suction flow rate of the air suction pipe 2.
[0048] After sedimentation, the bottom of the reaction tank becomes uneven, and the adsorption head needs to move along the bottom. If the inlet and outlet air flow rates are kept the same, a large amount of liquid will be easily drawn in. Experiments showed that making the inlet air flow rate greater than the outlet air flow rate effectively reduces the amount of liquid drawn into the suction pipe 2. The excess between the inlet and outlet air flow rates is discharged from the bottom edge of the water-proof cover. Since the discharged gas rises and also disturbs the liquid in the reaction tank, the inlet air flow rate should not exceed the outlet air flow rate by too much. Experiments showed that an inlet air flow rate of 102%-105% of the outlet air flow rate is suitable.
[0049] To minimize liquid inflow below the adsorption port, the bottom edge of the water-proof cover 1 should be as close to the bottom of the pool as possible. Since sediment buildup at the bottom can make the pool uneven, if the water-proof cover 1 is too low, its edge will scrape the sediment, pushing it to the sides and affecting the cleaning effect. If the water-proof cover 1 is too high, the gap between it and the pool bottom will be too large, causing it to absorb a large amount of the cleaning solution. Therefore, a ring-shaped baffle 6 is installed at the lower edge of the water-proof cover 1. The baffle 6 is made of an elastic, deformable material, and its bottom contacts the pool bottom during operation. The baffle 6 itself is deformable, adapting to the unevenness of the pool bottom. When the adsorption head moves along the bottom of the pool, the flexible baffle 6 will not scrape the sediment but will deform and slide over the top of the sediment, allowing the sediment to smoothly contact the adsorption port and the cleaning brush 4.
[0050] The enclosure 6 comprises an inner layer 6a and an outer layer 6b. A cavity exists between the inner layer 6a and the outer layer 6b. The tops of both the inner layer 6a and the outer layer 6b are fixed to the lower edge of the waterproof cover 1, and their bottoms are connected and fused together. The enclosure has a tapered cross-section, wider at the top and narrower at the bottom, making its bottom more easily deformable and facilitating its fit against uneven pool bottoms. The air blowing pipe 3 communicates with the cavity within the enclosure 6, and an air outlet 6c is formed around the inner layer 6a, connecting the cavity and the positive pressure chamber 5.
[0051] The cleaning brush 4 is arranged around the suction port, and its height is adjustable. The height of the cleaning brush 4 is manually adjustable; during use, the appropriate height is adjusted according to the condition of the pool bottom. The cleaning brush driver is a motor that drives the cleaning brush 4 to rotate. This invention proposes two specific arrangements for the cleaning brush 4, as follows:
[0052] (1) The cleaning brush 4 is a disc brush head with multiple surrounding suction ports. The bristles of the disc brush head face downward and can be driven by the cleaning brush driver to rotate along the axis.
[0053] (2) The cleaning brush 4 consists of several horizontally arranged brush rollers, with the ends of the brush rollers connected together and arranged around the adsorption head. The brush rollers can be driven to rotate by the cleaning brush driver, and the bristles at the bottom of the brush rollers move in the direction of the adsorption head.
[0054] Based on the adsorption head mentioned above, this invention also provides a drug solution sediment adsorption device, such as... Figure 2 As shown, the adsorption device includes a body 9, a walking system 11, a servo system 10, a support arm 7, and the adsorption head proposed above in this invention.
[0055] A walking system 11 is provided at the bottom of the body 9. A servo system 10 is installed on the body 9. The actuator of the servo system 10 is connected to the support arm 7. The end of the support arm 7 is connected to the adsorption head. The servo system 10 is used to drive the adsorption head to move.
[0056] The machine body 9 is also equipped with a positive pressure source and a negative pressure source. The positive pressure source is connected to the blowing pipe 3, and the negative pressure source is connected to the suction pipe 2.
[0057] A sediment separator is installed between the negative pressure source and the adsorption head. The sediment separator has an expanded flow channel; the gas mixed with sediment decreases in velocity within the separator, causing the sediment to settle downwards, while the gas flow reaches the negative pressure source from the top. The sediment separator is also connected to a dehydrator to reduce the water content of the sediment solids. The liquid and solids in the sediment are separated; the liquid is stored in a waste liquid storage tank, and the solids are stored in a storage container.
[0058] The servo system 10 is responsible for moving the adsorption head. The servo system 10 can be a robotic arm or a three-axis translation servo system 10.
[0059] The upper end of the support arm 7 is connected to the servo system 10, and the bottom of the support arm 7 is connected to the adsorption head. During operation, the top of the support arm 7 is above the liquid surface, while the bottom of the support arm 7 and the adsorption head are submerged below the liquid surface, with the adsorption head in close contact with the bottom of the pool. A flange is provided at the top of the support arm 7, through which the support arm 7 is detachably connected to the servo system 10. The bottom of the support arm 7 has an adjustable elbow, through which the adsorption head is detachably connected to the support arm 7. During operation, the support arm 7 is tilted.
[0060] To improve the ability to lift sediment, the support arm 7 is configured as a hollow tube. The top of the support arm 7 is connected to a negative pressure source via a pipe, and the bottom of the support arm 7 is connected to the suction pipe 2. The support arm 7 can also be considered as part of the suction pipe 2. In short, the suction airflow flows through the support arm 7.
[0061] A spiral conveyor rod 8 is installed inside the support arm 7, and a drive motor is fixed to the top of the support arm 7. The drive motor drives the spiral conveyor rod to rotate. Smaller deposits will be blown directly to the top by the airflow along the support arm 7. For larger deposits, or when deposits are deposited in the adsorption head or support arm 7, the spiral conveyor rod 8 will assist the deposits to rise, lift them to the top, and then be carried away laterally by the airflow.
[0062] An air outlet 6c is opened on the top side of the support arm 7. The air outlet 6c is connected to the negative pressure source through a pipe. The bottom opening of the support arm 7 is connected to the adsorption port of the adsorption head.
[0063] A controller is installed on the body 9. The controller is electrically connected to the intake flow sensor, the intake flow control valve, the inhalation flow sensor, and the inhalation flow control valve. The intake flow sensor and the inhalation flow sensor send the collected data to the controller. The controller controls the opening and closing of the intake flow control valve and the inhalation flow control valve, thereby controlling the intake flow and the inhalation flow, and maintaining the intake flow at 102%-105% of the inhalation flow.
[0064] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.
Claims
1. A drug liquid sediment adsorption head, characterized in that, Includes an air inhalation tube (2), an air blowing tube (3), a water shield (1), and a cleaning brush (4); The suction pipe (2) is used to remove sediment. The bottom of the suction pipe (2) has an adsorption port and is connected to a negative pressure source. Waterproof cover (1) is installed at the bottom of the suction pipe (2). The top of the waterproof cover (1) is fitted onto the suction pipe (2) and sealed, while the bottom is open. The waterproof cover (1) is inverted in the shape of a bowl at the bottom of the pool. The waterproof cover (1) and the bottom of the pool form a positive pressure cavity (5). The adsorption port is placed inside the positive pressure cavity (5) and the opening is facing downward. Air blowing pipe (3), air blowing pipe (3) is connected to a positive pressure source, air blowing pipe (3) has multiple air outlets (6c), and the air outlets (6c) of air blowing pipe (3) are arranged around the bottom edge of the waterproof cover (1); Cleaning brush (4) is installed inside the water-proof cover (1) and arranged around the adsorption port. The cleaning brush (4) is driven by the cleaning brush driver. The bristles of the cleaning brush (4) can scrape the sediment at the bottom of the pool. An air flow sensor and an air flow control valve are installed on the blowing pipe (3), and an air flow sensor and an air flow control valve are installed on the suction pipe (2); The airflow rate of the blowing tube (3) is greater than the airflow rate of the inhalation tube (2); The intake airflow rate is 102%-105% of the intake airflow rate; The lower edge of the water-proof cover (1) is equipped with a ring-shaped enclosure (6). The enclosure (6) is made of elastic and deformable material. When working, the bottom of the enclosure (6) is in contact with the bottom of the pool. The enclosure (6) includes an inner layer (6a) and an outer layer (6b); a cavity is left between the inner layer (6a) and the outer layer (6b); the tops of the inner layer (6a) and the outer layer (6b) are fixed to the lower edge of the waterproof cover (1); the inner layer (6a) and the outer layer (6b) are connected to each other at the bottom and fused into one. The air blowing pipe (3) is connected to the cavity inside the enclosure (6), and the air outlet (6c) is opened around the inner layer (6a) to connect the cavity and the positive pressure cavity (5).
2. The adsorption head for drug deposits according to claim 1, characterized in that, The cleaning brush (4) is arranged around the adsorption port, and the height of the cleaning brush (4) is adjustable; The cleaning brush (4) consists of multiple disc-shaped brush heads arranged around the suction port. The bristles of the disc-shaped brush head face downwards and can be driven by the cleaning brush driver to rotate along the axis. or, The cleaning brush (4) consists of several horizontally arranged brush rollers, with multiple brush rollers connected end to end around the adsorption head. The brush rollers can be driven to rotate by the cleaning brush driver, and the bristles at the bottom of the brush rollers move in the direction of the adsorption head.
3. A drug liquid sediment adsorption device, comprising a body (9), a walking system (11), a servo system (10), a support arm (7), and an adsorption head provided in any one of claims 1-2; The bottom of the body (9) is provided with a walking system (11), and a servo system (10) is installed on the body (9). The execution end of the servo system (10) is connected to the support arm (7), and the end of the support arm (7) is connected to the adsorption head. The servo system (10) is used to drive the adsorption head to move. The body (9) is also provided with a positive pressure source and a negative pressure source, the positive pressure source being connected to the blowing pipe (3) and the negative pressure source being connected to the suction pipe (2).
4. The drug solution sediment adsorption device according to claim 3, characterized in that, The upper end of the support arm (7) is connected to the servo system (10), and the bottom of the support arm (7) is connected to the adsorption head. When working, the top of the support arm (7) is above the liquid surface, and the bottom of the support arm (7) and the adsorption head are immersed below the liquid surface. The adsorption head is in close contact with the bottom of the pool. The top of the support arm (7) is provided with a flange, and the support arm (7) is detachably connected to the servo system (10) through the flange; the bottom of the support arm (7) is provided with an angle-adjustable elbow, and the adsorption head is detachably connected to the support arm (7) through the elbow; when working, the support arm (7) is tilted.
5. The drug solution sediment adsorption device according to claim 3, characterized in that, The support arm (7) is a hollow tube, and the intake airflow flows through the support arm (7); A spiral conveying rod (8) is provided inside the support arm (7), and a drive motor is fixed at the top of the support arm (7). The drive motor drives the spiral conveying rod (8) to rotate. An air outlet (6c) is opened on the top side of the support arm (7). The air outlet (6c) is connected to the negative pressure source through a pipe. The bottom opening of the support arm (7) is connected to the adsorption port of the adsorption head.
6. The drug solution sediment adsorption device according to claim 3, characterized in that, The machine body (9) is equipped with a controller, which is electrically connected to an intake flow sensor, an intake flow control valve, an inhalation flow sensor, and an inhalation flow control valve respectively. The intake flow sensor and the inhalation flow sensor send the collected data to the controller, which controls the opening and closing of the intake flow control valve and the inhalation flow control valve, thereby controlling the intake flow to be greater than the inhalation flow.
7. The drug solution sediment adsorption device according to claim 6, characterized in that, Maintain the intake airflow rate at 102%-105% of the intake airflow rate.
Citation Information
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