Experimental sulfuric acid sampling device

Abstract

The utility model relates to the field of sulfuric acid sampling, in particular to an experimental sulfuric acid sampling device which comprises a capacity cylinder, protruding pipes extend from the centers of the top end and the bottom end of the capacity cylinder, a non-return assembly is installed on the outer wall of the top of the capacity cylinder and located at the protruding pipes, and a discharge pipe is connected to the center of the outer wall of one side of the capacity cylinder. A first connector is inserted into the outer wall of a protruding pipe at the bottom end of the capacity cylinder, and a pressure release valve is installed on one side of the outer wall of the top of the capacity cylinder. The non-return assembly comprises a non-return spring installed on the outer wall of the top end of the capacity cylinder and a plug installed on the outer wall of the other end of the non-return spring. The required amount of sulfuric acid is set in the controller, then the valve on the discharge pipe is started, the sulfuric acid flows out of the discharge pipe and is received at the discharge pipe, the flow meter is used for metering the sulfuric acid flowing out of the discharge pipe, and the valve is closed by the controller after the sulfuric acid is quantified, so that the discharge amount is conveniently controlled, and excessive discharge is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sulfuric acid sampling, in particular to a sulfuric acid sampling device for experiments. Background Art

[0002] Sulfuric acid is an inorganic compound with the chemical formula H2SO4. It is the most important oxygen-containing acid of sulfur. Pure sulfuric acid is a colorless oily liquid that crystallizes at 10.36°C. It is usually prepared by tower method and contact method in its aqueous solutions of various concentrations. Sulfuric acid is the most active binary inorganic strong acid and can react with most metals. High concentrations of sulfuric acid have strong water absorption and can be used as a dehydrating agent to carbonize wood, paper, cotton and linen fabrics, biological skins and flesh and other carbohydrate-containing substances.

[0003] When the current sulfuric acid extraction device is used, it is hand-held and the user extends the hand-held extraction device into the sulfuric acid bottle for extraction. The hand shaking is transmitted to the extraction device and amplified in the extraction device, causing severe shaking of the extraction end, which can easily shake out the sulfuric acid and cause corrosion to the surrounding area. Utility Model Content

[0004] The utility model aims to solve the above-mentioned problems and shortcomings and proposes an experimental sulfuric acid sampling device: the threaded sealing cover on the extraction tube is placed on the bottle body filled with sulfuric acid, the center of the threaded sealing cover is threaded on the inner wall of the top of the bottle body, the bottle body is integrated with the whole, the extraction tube is limited, the extraction is convenient, the extraction stability is maintained, and the problem of unstable extraction is solved.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An experimental sulfuric acid sampling device comprises a capacity cylinder, wherein protruding tubes are extended at the center of the top and bottom ends of the capacity cylinder, and a non-return assembly is installed on the outer wall of the top of the capacity cylinder at the protruding tube, a discharge pipe is connected to the center of the outer wall of one side of the capacity cylinder, and a connector is inserted into the outer wall of the protruding tube at the bottom end of the capacity cylinder, and a pressure relief valve is installed on one side of the top outer wall of the capacity cylinder; the non-return assembly comprises a non-return spring installed on the outer wall of the top end of the capacity cylinder and a plug installed on the outer wall of the other end of the non-return spring.

[0007] Preferably, the cross-section of the plug is a "T"-shaped structure, and the outer wall of the bottom end of the plug is slidably connected to the inner wall of the protruding tube, and a rubber ring is provided at the top of the side outer wall of the plug.

[0008] Preferably, the anti-return spring is sleeved on the outer wall of the protruding tube, and the bottom end of the outer wall of the plug is provided with equidistantly distributed air outlet holes, and a movable shell is installed on the outer wall of the top end of the capacity cylinder at the anti-return spring and the plug.

[0009] Preferably, a second connector is plugged into the top outer wall of the movable shell, and a driving tube is plugged into the top of the second connector, a micro air pump is provided at the other end of the driving tube, and the input end of the micro air pump is connected to one end of the driving tube, and a controller is installed on the outer wall of the micro air pump.

[0010] Preferably, sealing rings are fixed to the inner walls at both ends of connector 1 and connector 2, and an extraction tube is inserted into the outer wall at the bottom end of connector 1.

[0011] Preferably, mounting plates are installed on one side outer wall of the capacity cylinder and the outer wall of the extraction tube, and handles are connected between the mounting plates. Valves are installed in the protruding tube at the bottom of the capacity cylinder and the discharge pipe, and a flow meter is installed at the valve on the discharge pipe.

[0012] Preferably, a bottle body is provided at the bottom end of the extraction tube, and a threaded sealing cover is sleeved on the outer wall of the extraction tube, and the outer wall of the bottom of the threaded sealing cover is inserted into the top of the inner wall of the bottle body.

[0013] Preferably, the outer walls of the extraction tube and the capacity cylinder are provided with liquid level lines, and the micro air pump and the valve are connected to the controller via wires, and the controller is connected to the power supply via wires, and the flow meter is connected to the signal input terminal of the controller via a signal line.

[0014] The beneficial effects of the utility model are:

[0015] 1. Sulfuric acid is moved upward along the extraction tube by the micro air pump into the capacity cylinder. After a certain amount of sulfuric acid accumulates inside the capacity cylinder, the valve on the protruding tube and the micro air pump are closed to pre-extract sulfuric acid for subsequent continuous use;

[0016] 2. Under the pressure of the micro air pump, the plug inside the movable shell stretches the non-return spring, so that the plug is partially withdrawn from the inside of the protruding tube, exposing the air outlet on the plug, which is convenient for non-return and prevents the micro air pump from pumping sulfuric acid;

[0017] 3. Set the required amount of sulfuric acid in the controller, and then start the valve on the discharge pipe. Sulfuric acid will flow out of the discharge pipe. The flow meter will measure the sulfuric acid flowing out of the discharge pipe. After quantitative measurement, the controller will close the valve to control the discharge amount and avoid excessive discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an experimental sulfuric acid sampling device proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the expanded structure of an experimental sulfuric acid sampling device proposed by the utility model;

[0020] Figure 3This is a schematic diagram of the unfolding structure of a movable shell of an experimental sulfuric acid sampling device proposed by the utility model;

[0021] Figure 4 The utility model is a bottom unfolding structure schematic diagram of an experimental sulfuric acid sampling device.

[0022] In the figure: 1 capacity cylinder, 2 non-return assembly, 3 discharge pipe, 4 valve, 5 connector 1, 6 extraction pipe, 7 mounting plate, 8 handle, 9 protruding pipe, 10 movable shell, 11 non-return spring, 12 plug, 13 air outlet, 14 connector 2, 15 drive pipe, 16 micro air pump, 17 liquid level line, 18 threaded sealing cover, 19 bottle body, 20 flow meter. DETAILED DESCRIPTION

[0023] 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 of the embodiments.

[0024] Embodiment 1:

[0025] Reference Figure 1-4 , an experimental sulfuric acid sampling device, comprising a capacity cylinder 1, a protruding tube 9 is extended at the center of the top and bottom ends of the capacity cylinder 1, and a check assembly 2 is installed on the top outer wall of the capacity cylinder 1 at the protruding tube 9, a discharge pipe 3 is connected at the center of the outer wall of one side of the capacity cylinder 1, and a connector 1 5 is plugged into the outer wall of the protruding tube 9 at the bottom end of the capacity cylinder 1, a pressure relief valve is installed on one side of the top outer wall of the capacity cylinder 1, the protruding tubes 9 at both ends of the capacity cylinder 1 and one end of the movable shell 10 are connected to a driving tube 15 and an extraction tube 6 through a connector 1 5 and a connector 2 14 respectively, after use, multiple parts in the device can be disassembled for cleaning;

[0026] The outer wall of the top of the movable shell 10 is plugged with a second connector 14, and the top of the second connector 14 is plugged with a driving tube 15, the other end of the driving tube 15 is provided with a micro air pump 16, and the input end of the micro air pump 16 is connected to one end of the driving tube 15, and the outer wall of the micro air pump 16 is installed with a controller;

[0027] A bottle body 19 is provided at the bottom end of the extraction tube 6, and a threaded sealing cap 18 is sleeved on the outer wall of the extraction tube 6. The outer wall of the bottom of the threaded sealing cap 18 is inserted into the top of the inner wall of the bottle body 19. After the sulfuric acid in the bottle body 19 is used up, the bottle body 19 is rotated and removed from the threaded sealing cap 18, and a new bottle body 19 is threadedly connected to the threaded sealing cap 18 for replacement, which is convenient for replacement and use;

[0028] Liquid level lines 17 are provided on the outer walls of the extraction tube 6 and the capacity cylinder 1, and the micro air pump 16 and the valve 4 are connected to the controller through wires, and the controller is connected to the power supply through wires, and the flow meter 20 is connected to the signal input terminal of the controller through a signal line. After the valve 4 and the pressure relief valve on the discharge pipe 3 are opened, the sulfuric acid inside the capacity cylinder 1 flows out from the discharge pipe 3, and the flow meter 20 measures the amount of discharged sulfuric acid, so that the controller can close the valve 4 of the discharge pipe 3 in time, so as to control the required amount.

[0029] One side outer wall of the capacity cylinder 1 and the outer wall of the extraction tube 6 are both installed with mounting plates 7, and a handle 8 is connected between the mounting plates 7. The protruding tube 9 at the bottom of the capacity cylinder 1 and the discharge tube 3 are both installed with valves 4. The discharge tube is provided with a flow meter 20 at the valve 4. When the micro air pump 16 starts to extract sulfuric acid from the bottle 19, the valve 4 and the pressure relief valve on the discharge tube 3 are closed, and the valve 4 on the protruding tube 9 is opened. The micro air pump 16 evacuates air from the inside of the capacity cylinder 19, so that sulfuric acid enters the capacity cylinder 1 through the extraction tube 6. The valve 4 on the protruding tube 9 and the micro air pump 16 are closed to complete the extraction of the pre-used amount of sulfuric acid, which is convenient for use.

[0030] Embodiment 2:

[0031] Reference Figure 1-3 The non-return assembly 2 includes a non-return spring 11 installed on the outer wall of the top end of the capacity cylinder 1 and a plug 12 installed on the outer wall of the other end of the non-return spring 11;

[0032] The cross section of the plug 12 is a "T"-shaped structure, and the outer wall of the bottom end of the plug 12 is slidably connected to the inner wall of the protruding tube 9, and a rubber ring is provided at the top of the side outer wall of the plug 12;

[0033] The check spring 11 is sleeved on the outer wall of the protruding tube 9, and the bottom end of the outer wall of the plug 12 is provided with equidistantly distributed air outlet holes 13, and a movable shell 10 is installed on the outer wall of the top of the capacity cylinder 1 at the check spring 11 and the plug 12;

[0034] Sealing rings are fixed to the inner walls at both ends of connector 1 5 and connector 2 14, and an extraction tube 6 is inserted into the outer wall at the bottom end of connector 1 5. After use, cleaning is required. The extraction tube 6 and the drive tube 15 are removed from connector 1 5 and connector 2 14, and the extraction tube 6 and the capacity cylinder 1 are cleaned separately, which is convenient for disassembly and cleaning, and connector 1 5 and connector 2 14 are easy to replace after wear.

[0035] Working principle: When in use, the extraction tube 6 is connected to the capacity cylinder 1 through the connector 1 5, the drive tube 15 of the micro air pump 16 is connected to the capacity cylinder 1 through the connector 2 14, the valve 4 of the discharge tube 3 is closed, the valve 4 of the protruding tube 9 is opened, the outer wall of the extraction tube 6 is inserted into the screw-connected sealing cover 18, and the handle 8 is used to drive the whole to move into the bottle body 19 filled with sulfuric acid, and the extraction tube 6 is lowered so that one end is immersed in the sulfuric acid until the bottom inner wall of the bottle body 19, and the screw-connected sealing cover 18 is screwed into the bottle body to merge the whole with the bottle body 19, and the sulfuric acid is extracted after merging to avoid the sulfuric acid from scattering or dripping due to factors such as hand shaking, so as to maintain the stability and safety of extraction;

[0036] Start the micro air pump 16 to draw air into the capacity cylinder 1 through the driving pipe 15. At this time, under the pressure of the micro air pump 16, the plug 12 inside the movable shell 10 stretches the non-return spring 11, so that the plug 12 is partially withdrawn from the inside of the protruding tube 9, exposing the air outlet 13 on the plug 12. At this time, the gas in the capacity cylinder 1 is drawn out from the air outlet 13 by the micro air pump 16. The extraction tube 6 is located in sulfuric acid, and the sulfuric acid is moved upward along the extraction tube 6 by the micro air pump 16 into the capacity cylinder 1. After a certain amount of sulfuric acid accumulates inside the capacity cylinder 1, the valve on the protruding tube 9 is closed. Door 4 and micro air pump 16, first set the required amount of sulfuric acid in the controller, and then start the valve 4 on the discharge pipe 3. After the valve 4 is opened, the sulfuric acid in the capacity cylinder 1 will flow out of the discharge pipe 3, and a measuring cylinder or other tools are used to receive it at the discharge pipe 3. The flow meter 20 measures the sulfuric acid flowing out of the discharge pipe 3. After reaching the capacity set by the controller, the controller will close the valve 4, and the pressure relief valve of the capacity cylinder 1 and the valve of the protruding tube 9 will be opened, so that the sulfuric acid inside the capacity cylinder 1 returns to the inside of the bottle body 19, which is convenient for controlling the discharge amount and extracting the pre-used amount.

[0037] The exemplary implementation of the utility model is described in detail with reference to the examples, however, it is understood by those skilled in the art that, without departing from the concept of the utility model, various modifications and alterations may be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the utility model may be made without exceeding the scope of protection of the utility model, which is determined by the attached claims. The foregoing description of the specific exemplary implementation of the utility model is not intended to limit the utility model to the precise form disclosed, and it is obvious that many changes and variations can be made according to the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary implementations of the utility model and various different choices and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. An experimental sulfuric acid sampling device, comprising a volumetric cylinder (1), characterized in that: A protruding tube (9) is extended from the top and the center of the bottom of the capacity cylinder (1), and a check assembly (2) is installed on the top outer wall of the capacity cylinder (1) at the protruding tube (9), a discharge tube (3) is connected to the center of the outer wall of one side of the capacity cylinder (1), and a connector (5) is inserted into the outer wall of the protruding tube (9) at the bottom of the capacity cylinder (1), and a pressure relief valve is installed on one side of the top outer wall of the capacity cylinder (1); The anti-return assembly (2) comprises an anti-return spring (11) installed on the outer wall of the top end of the capacity cylinder (1) and a plug (12) installed on the outer wall of the other end of the anti-return spring (11).

2. The experimental sulfuric acid sampling device according to claim 1, characterized in that: The cross section of the plug (12) is a "T"-shaped structure, and the outer wall of the bottom end of the plug (12) is slidably connected to the inner wall of the protruding tube (9), and a rubber ring is provided at the top of the side outer wall of the plug (12).

3. The experimental sulfuric acid sampling device according to claim 1, characterized in that: The non-return spring (11) is sleeved on the outer wall of the protruding tube (9), and the bottom end of the outer wall of the plug (12) is provided with air outlet holes (13) distributed at equal distances. The outer wall of the top end of the capacity cylinder (1) is provided with a movable shell (10) at the non-return spring (11) and the plug (12).

4. The experimental sulfuric acid sampling device according to claim 3, characterized in that: The outer wall at the top end of the movable shell (10) is plugged with a second connector (14), and the top end of the second connector (14) is plugged with a driving tube (15), the other end of the driving tube (15) is provided with a micro air pump (16), and the input end of the micro air pump (16) is connected to one end of the driving tube (15), and a controller is installed on the outer wall of the micro air pump (16).

5. The experimental sulfuric acid sampling device according to claim 1, characterized in that: Sealing rings are fixed to the inner walls of both ends of the connector 1 (5) and the connector 2 (14), and an extraction tube (6) is inserted into the outer wall of the bottom end of the connector 1 (5).

6. The experimental sulfuric acid sampling device according to claim 1, characterized in that: The outer wall of one side of the volume cylinder (1) and the outer wall of the extraction tube (6) are both installed with mounting plates (7), and a handle (8) is connected between the mounting plates (7). The protruding tube (9) at the bottom end of the volume cylinder (1) and the discharge tube (3) are both installed with valves (4), and the discharge tube is installed with a flow meter (20) at the valve (4).

7. The experimental sulfuric acid sampling device according to claim 5, characterized in that: The bottom end of the extraction tube (6) is provided with a bottle body (19), and the outer wall of the extraction tube (6) is sleeved with a threaded sealing cover (18), and the outer wall of the bottom of the threaded sealing cover (18) is inserted into the top of the inner wall of the bottle body (19).

8. The experimental sulfuric acid sampling device according to claim 5, characterized in that: The outer walls of the extraction tube (6) and the volume cylinder (1) are both provided with liquid level lines (17), and the micro air pump (16) and the valve (4) are connected to the controller via wires, and the controller is connected to the power supply via wires, and the flow meter (20) is connected to the signal input terminal of the controller via a signal line.

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