CN207281606U - A kind of experimental rig that constant head and real-time moisturizing are provided - Google Patents

Abstract

The utility model discloses a kind of experimental rig for providing constant head and real-time moisturizing, the device is mainly made of constant pressure making up water device and constant pressure water supplying device two large divisions, constant pressure making up water device is connected with constant pressure water supplying device by connecting deferent, valve is installed on connection deferent, water coke slurry situation between constant pressure making up water device and constant pressure water supplying device can be controlled.Constant pressure making up water device includes filling pipe, valve, the glass tube of line with a scale, rubber stopper, vial, draining duct member；Constant pressure water supplying device includes rubber stopper, vial, feed pipe, valve, the glass tube section of line with a scale.The utility model has the advantages that good energy-saving effect, controls in real time, is easy to operate.

Description

A test device that can provide constant water head and replenish water in real time

technical field

The utility model relates to a test device, in particular to a test device which can provide a constant water head and replenish water in real time.

Background technique

Maintaining a constant flow rate during elution is an important condition for column chromatography to obtain good separation effects. Because the separation effect of gel chromatography mainly depends on the chance of molecular diffusion into the gel, some molecules will flow out if the flow rate is too fast; if the flow rate is too slow, the separated molecules will mix due to diffusion. Therefore, it is necessary to maintain a suitable constant flow rate. The flow rate of the eluent depends on its hydrostatic pressure. Hydrostatic pressure refers to the liquid level of the eluent in the elution bottle is higher than the liquid pressure generated by the outlet of the chromatography column (or the height difference between the two liquid levels in contact with air). The greater the height difference, the greater the hydrostatic pressure. The larger the value, the faster the flow rate of the eluent. This pressure difference can be adjusted, such as increasing the position of the elution bottle or the increase or decrease of the liquid level in the bottle; or reducing or increasing the position of the outlet of the chromatography column, etc., so the hydrostatic pressure is also called the operating pressure. Due to the greater hydrostatic pressure, the flow rate of the eluent is faster. In the case of fixing the position of the elution bottle and the outlet, the hydrostatic pressure will decrease as the liquid level in the elution bottle decreases during the elution process, and it is difficult to maintain a constant flow rate. In order to solve this problem, Marriott first plugged the elution bottle tightly, inserted a glass tube into the plug, and made the bottom of the glass tube go deep into the bottom of the eluent, so that the hydrostatic pressure of the eluent was equal to that of the bottom of the glass tube. The liquid level is higher than the height of the liquid level at the outlet of the chromatography column (because when the liquid of the eluting bottle flows out, the top of the bottle forms a vacuum, the air only enters from the glass tube, and the lower opening of the glass tube is the point of contact with the air), so as long as the solution does not Below the lower opening of the glass tube, the increase or decrease of the solution above the glass tube opening will not affect the hydrostatic pressure, thereby automatically maintaining a constant flow rate. This elution bottle is called a constant pressure bottle, also called a Martens bottle.

Traditional Martens bottles have the disadvantage of not being able to replenish water at a constant pressure in real time.

Utility model content

The purpose of this utility model is to overcome the defects in the prior art and provide a test device that can provide a constant water head and replenish water in real time. The device makes full use of the principle of pressure to solve practical problems in life and ensures Constant water head and real-time water replenishment, and it can operate without additional energy during the water supply process of the whole device, with good energy-saving effect, real-time control, convenient operation and other significant advantages.

Its specific technical plan is:

A test device that can provide a constant water head and replenish water in real time. It is composed of a constant pressure water replenishment device and a constant pressure water supply device. The constant pressure water replenishment device and the constant pressure water supply device are connected through a connecting channel, and a valve is installed on the connecting channel. , Real-time water exchange between the constant pressure water supply device and the constant pressure water supply device can be realized. Wherein, the constant pressure water replenishing device includes a third valve 8, an exhaust pipe 9, a second glass tube 10 with graduation marks, a second rubber stopper 11, a second glass bottle 12, a second drain pipe 13, and a fourth valve 14; The constant-pressure water supply device includes a first rubber stopper 1, a first glass bottle 2, a first water supply pipe 3, a first valve 4, and a first glass tube 6 with graduation marks. The size of the mouth of the first glass bottle 2 is slightly larger than the size of the first rubber stopper 1, and the first rubber stopper 1 is tightly plugged into the mouth of the first glass bottle 2, and a reagent is used to seal and connect the contact parts. The opening of the plug 1 is connected to the first glass tube 6 with scale lines and the opening is sealed. The first glass tube 6 with scale lines can read the inside of the first glass tube 6 with scale lines and the first glass bottle 2 The reading of the liquid level of the inner water; the first glass bottle 2 has a hole in its lower left part and is connected to the first water pipe 3, and the opening part of the first glass bottle 2 is sealed, and the first water pipe 3 is installed on the first water pipe 3. A valve 4, the end of the first water pipe 3 is lower than the bottom of the first glass tube 6 with scale marks; the size of the mouth of the second glass bottle 12 is slightly larger than the size of the second rubber stopper 11, and the second rubber stopper 11 Tightly plug the mouth of the second glass bottle 12, and use a reagent to seal the contact part. The second rubber stopper 11 opens a hole to connect the second glass tube 10 with the scale line and the exhaust pipe 9 and seals it at the opening. Process, the second glass tube 10 with scale line can read the liquid level readings of the water in the second glass tube 10 with scale line and the water in the second glass bottle 12, and be connected with the water storage tank, and install the second glass tube 10 on the exhaust pipe 9 Three valves 8, and in contact with the outside atmosphere; the second glass bottle 12 is connected to the drain pipe 13 at its lower right part, and the opening position of the second glass bottle 12 is sealed, and the fourth valve 14 is installed on the drain pipe 13, The end of the drain pipe 13 is lower than the bottom of the second glass tube 10 with scale marks.

Further, the connecting channel tube is lower than the bottom of the second glass tube 10 with graduation marks of the constant pressure water supply device and the bottom of the first glass tube 6 with graduation marks of the constant pressure water supply device.

Further, the glass bottle is an ordinary transparent glass bottle, or a steel bottle capable of observing the liquid level in the bottle; the drain pipe is a glass tube, or a galvanized steel pipe, or a copper pipe; the water supply pipe is a glass tube, or a galvanized steel pipe, or a plastic Tubes, or copper tubes; valves use single-gate valves.

Further, the communication channel tube is a glass tube or a plastic tube.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model overcomes the shortcomings of the traditional constant water head water supply device that the Martens bottle cannot replenish water in real time at constant pressure, provides constant water head through the constant pressure water supply device, and replenishes water for the constant pressure water supply device in real time through the constant pressure water supply device. The utility model is a test device capable of providing constant water head and real-time water replenishment, which is suitable for real-time water replenishment in laboratories and constant head water replenishment in large factories, and has the advantages of good energy-saving effect, real-time control, and convenient operation.

Description of drawings

Figure 1 is a schematic structural diagram of a test device that can provide a constant water head and replenish water in real time.

Detailed ways

The technical solution of the present utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figure 1, a test device that can provide a constant water head and replenish water in real time is composed of two parts: a constant pressure water replenishment device and a constant pressure water supply device. The constant pressure water replenishment device and the constant pressure water supply device are connected through a connecting channel. A valve is installed on the connecting channel to realize real-time water exchange between the constant pressure water supply device and the constant pressure water supply device. Wherein, the constant pressure water replenishing device includes a third valve 8, an exhaust pipe 9, a second glass tube 10 with graduation marks, a second rubber stopper 11, a second glass bottle 12, a second drain pipe 13, and a fourth valve 14; The constant-pressure water supply device includes a first rubber stopper 1, a first glass bottle 2, a first water supply pipe 3, a first valve 4, and a first glass tube 6 with graduation marks. The size of the mouth of the first glass bottle 2 is slightly larger than the size of the first rubber stopper 1, and the first rubber stopper 1 is tightly plugged into the mouth of the first glass bottle 2, and a reagent is used to seal and connect the contact parts. The opening of the plug 1 is connected to the first glass tube 6 with scale lines and the opening is sealed. The first glass tube 6 with scale lines can read the inside of the first glass tube 6 with scale lines and the first glass bottle 2 The reading of the liquid level of the inner water; the first glass bottle 2 has a hole in its lower left part and is connected to the first water pipe 3, and the opening part of the first glass bottle 2 is sealed, and the first water pipe 3 is installed on the first water pipe 3. A valve 4, the end of the first water pipe 3 is lower than the bottom of the first glass tube 6 with scale marks; the size of the mouth of the second glass bottle 12 is slightly larger than the size of the second rubber stopper 11, and the second rubber stopper 11 Tightly plug the mouth of the second glass bottle 12, and use a reagent to seal the contact part. The second rubber stopper 11 opens a hole to connect the second glass tube 10 with the scale line and the exhaust pipe 9, and seals at the opening Process, the second glass tube 10 with scale line can read the liquid level readings of the water in the second glass tube 10 with scale line and the water in the second glass bottle 12, and be connected with the water storage tank, and install the second glass tube 10 on the exhaust pipe 9 Three valves 8, and in contact with the outside atmosphere; the second glass bottle 12 is connected to the drain pipe 13 at its lower right part, and the opening position of the second glass bottle 12 is sealed, and the fourth valve 14 is installed on the drain pipe 13, The end of the drain pipe 13 is lower than the bottom of the second glass tube 10 with scale marks.

Further, the connecting channel tube is lower than the bottom of the second glass tube 10 with graduation marks of the constant pressure water supply device and the bottom of the first glass tube 6 with graduation marks of the constant pressure water supply device.

Further, the glass bottle is an ordinary transparent glass bottle, or a steel bottle capable of observing the liquid level in the bottle; the drain pipe is a glass tube, or a galvanized steel pipe, or a copper pipe; the water supply pipe is a glass tube, or a galvanized steel pipe, or a plastic Tubes, or copper tubes; valves use single-gate valves.

Further, the communication channel tube is a glass tube or a plastic tube.

A test device that can provide constant water head and replenish water in real time. The principle involves the air pressure P1 in the first glass bottle of the constant pressure water supply device, the pressure P in the water in the first glass bottle, and the pressure P at the end of the water supply pipe; it also involves constant pressure. The air pressure P2 in the second glass bottle of the water supply device, the water pressure P in the second glass bottle, and the pressure P at the end of the drain pipe.

The utility model can provide a constant water head and real-time replenishment test device in the specific application process, when working, as follows:

- adjust the second glass tube 10 with scale lines and the first glass tube 6 with scale lines to make the bottom height consistent with the required water head height;

2. Close the third valve 8, the fourth valve 14, open the valve 27, and the first valve 4. The constant pressure device provides a constant water head. At this time, the constant pressure replenishment water and the constant pressure water supply are connected;

Third, the water volume of the constant pressure water supply device is small. When replenishing water is needed, close the valve 27, open the third valve 8, enter the water from the second glass tube 10 with the scale line, and exhaust it through the exhaust pipe 9;

4. After the constant pressure water replenishment device has fully replenished water, close the third valve 8, open the fourth valve 14, and adjust the internal pressure of the constant pressure water replenishment device. When no water flows out, the pressure adjustment is completed. At this time, the water replenishment device and the water supply device have the same pressure at the same height. , close the fourth valve 14, open the valve 27, and the water supply device supplies water to the water supply device.

The above is only a preferred embodiment of the utility model, and the scope of protection of the utility model is not limited thereto. Anyone familiar with the technical field can obviously obtain the technology within the technical scope disclosed in the utility model. Simple changes or equivalent replacements of the schemes all fall within the protection scope of the present utility model.

Claims (4)

1. A test device that can provide a constant water head and replenish water in real time. It consists of two parts: a constant pressure water replenishment device and a constant pressure water supply device. Valves are installed, wherein the constant pressure water supply device comprises a third valve (8), an exhaust pipe (9), a second glass tube (10) with scale marks, a second rubber stopper (11), a second glass bottle (12 ), the second drain pipe (13), the fourth valve (14); the constant pressure water supply device includes the first rubber stopper (1), the first glass bottle (2), the first water pipe (3), the first valve ( 4), the first glass tube (6) with scale line; it is characterized in that: the bottleneck size of described first glass bottle (2) is slightly larger than the first rubber stopper (1) size, and the first rubber stopper ( 1) Tightly plug the mouth of the first glass bottle (2), and use a reagent to seal the contact part. The first rubber stopper (1) has a hole connected to the first glass tube (6) with a scale line, and the hole is made Sealing treatment, the first glass tube (6) with scale line can read the liquid level reading of water in the first glass tube (6) with scale line and the water in the first glass bottle (2); (2) Open a hole in the lower left part and connect it to the first water pipe (3), seal the hole in the first glass bottle (2), install the first valve (4) on the first water pipe (3) , the end of the first water pipe (3) is lower than the bottom of the first glass tube (6) with scale marks; the bottleneck size of the second glass bottle (12) is slightly larger than the second rubber stopper (11) size, and The second rubber stopper (11) is tightly plugged into the mouth of the second glass bottle (12), and a reagent is used for sealing connection at its contact position, and the second rubber stopper (11) is perforated to connect with the second glass tube (10 ) and exhaust pipe (9) and do sealing treatment at the opening, the second glass tube (10) with scale can read the inside of the second glass tube (10) with scale and the second glass bottle (12 ) liquid level readings of the water, and connected with the reservoir, the third valve (8) is installed on the exhaust pipe (9), and in contact with the external atmosphere; pipe (13), seal the opening of the second glass bottle (12), install the fourth valve (14) on the drain pipe (13), and the end of the drain pipe (13) is lower than the second glass bottle with scale line Glass tube (10) bottom. 2. The test device that can provide constant water head and replenish water in real time according to claim 1, characterized in that, the connecting channel tube is lower than the bottom of the second glass tube (10) with scale line and constant pressure of the constant pressure water replenishing device. The bottom of the first glass tube (6) with scale line of the water supply device. 3. The test device capable of providing a constant water head and replenishing water in real time according to claim 1, characterized in that, the glass bottle described in the second glass tube with a scale line lower than the second glass tube of the constant pressure replenishing device is ordinary and transparent. Glass bottles, or steel cylinders that can observe the liquid level in the bottle; the drain pipe is glass pipe, or galvanized steel pipe, or copper pipe; the water supply pipe is glass pipe, or galvanized steel pipe, or plastic pipe, or copper pipe; the valves are all used Single gate valve. 4. The test device capable of providing constant water head and replenishing water in real time according to claim 1, characterized in that, the connecting channel tube is lower than the second glass tube with scale line of the constant pressure water replenishing device, and the connecting channel tube is made of glass pipe, or plastic pipe.