CN109045760A

CN109045760A - A kind of device and method obtaining air from water

Info

Publication number: CN109045760A
Application number: CN201810762598.6A
Authority: CN
Inventors: 钱雪松; 钱子贤; 何钢; 钱子凡
Original assignee: Hohai University HHU
Current assignee: Hohai University HHU
Priority date: 2018-07-12
Filing date: 2018-07-12
Publication date: 2018-12-21

Abstract

The invention discloses a device and method for obtaining air from water. The device includes a water cylinder, a first piston, a cylinder, a second piston, a stop valve 1, a stop valve 2, a check valve 1 and a check valve 2; The piston is set in the water tank, the water inlet and the drain are set on both sides of the top of the water tank, a one-way valve is set at the drain of the water tank, and a shut-off valve is set at the water inlet of the water tank; the second piston is set in the cylinder The side of the bottom of the cylinder is provided with an exhaust port, and a one-way valve two is arranged at the exhaust port; the top of the water tank is perforated with the bottom of the cylinder and connected by a pipeline, and a shut-off valve two is set on the pipeline. The invention directly utilizes the dissolved air in the water to supply breathing air for underwater workers. The device gets rid of the bulky, complex and cumbersome shortcomings of traditional devices, making it easier for underwater workers to carry and use.

Description

A kind of device and method obtaining air from water

Technical field

The present invention relates to a kind of from water obtains the device and method of air, belongs to field of mechanical technique.

Background technique

Currently, acquisition air or oxygen mainly use oxygen cylinder from water, by the way that oxygen compression is entered oxygen cylinder In, the oxygen demand of underwater operation personnel is provided, presses technology by water middle reaches by air separation there is also some in the prior art From air extract for underwater operating personnel use, but existing device be generally used mixing wastewater with air extraction, then Isolate air by gas and water separator, this result in device it is complicated, huge the defects of.

Summary of the invention

In order to overcome above-mentioned deficiency, the present invention provides a kind of from water obtains the device and method of air, solves existing There is the defect extracted in technology using mixing wastewater with air.

Technical scheme is as follows:

A kind of device obtaining air from water, described device includes water vat, first piston, cylinder, second piston, shut-off valve One, shut-off valve two, check valve one and check valve two；

The first piston is arranged in water vat, the top two sides setting water inlet and discharge outlet of the water vat, the water vat Check valve one is set at discharge outlet, is connected inside the import of the check valve one and water vat, the outlet of the check valve one with Discharge outlet is connected, and shut-off valve one is arranged in the water inlet of the water vat；

The second piston is arranged in cylinder, and exhaust outlet is arranged in the bottom side of the cylinder, and the exhaust ports setting is single To valve two, the import of the check valve two is connected with cylinder interior, and the import of the check valve two is connected with exhaust outlet；

The top of the water vat and the bottom opening of cylinder simultaneously pass through piping connection, and shut-off valve two is arranged on the pipeline.

Above-mentioned shut-off valve one selects hand-operated valve or solenoid valve；

Above-mentioned shut-off valve two selects hand-operated valve or solenoid valve；

A method of air, which is obtained, from water is included the following steps: using above-mentioned device

(1), shut-off valve one is first turned on, shut-off valve two is closed；

(2), driving first piston moves downward, and water completes water inlet out of water inlet enters water vat through shut-off valve one cylinder body Process；

(3), opening stop valve two, lock the position of first piston, and driving second piston moves upwards, water vat, cylinder and corresponding Occurs negative pressure in pipeline, when negative pressure is less than the air separation pressure of water, the air being dissolved in inside water in water vat will be with bubble Form separate out, and move upwards, entered in the cylinder body of cylinder by shut-off valve two, complete the mistake for obtaining air from water Journey；

(4), shut-off valve two is closed, driving second piston moves downward, and the air in cylinder is by check valve two automatically from exhaust Mouth discharge, completes exhaust process；

(5), opening stop valve one, driving first piston moves upwards, by the water in water vat by check valve one automatically from draining Mouth discharge, completes drainage procedure.

Above-mentioned first piston perhaps Mechanical Driven or is driven by electricity by manual actuation.

Above-mentioned second piston perhaps Mechanical Driven or is driven by electricity by manual actuation.

Advantageous effects of the invention:

The dissolved air in water is directly utilized in the present invention, is used to supply underwater operating personnel's breath, which gets rid of biography Huge, complicated, the heavy disadvantage that bulk cargo is set, so that underwater operation personnel are easier to carry and be more convenient to use.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of apparatus of the present invention；

Fig. 2 is the process schematic of method of the invention.

Specific embodiment

The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention Technical solution, and not intended to limit the protection scope of the present invention.

As shown in Figure 1, it is a kind of from water obtain air device, described device include water vat 1, first piston 2, cylinder 3, Second piston 4, shut-off valve 1, shut-off valve 27, check valve 1 and check valve 28；

The first piston 2 is arranged in water vat 1, the top two sides setting water inlet and discharge outlet of the water vat 1, the water vat Check valve 1 is set at 1 discharge outlet, is connected inside the import of the check valve 1 and water vat 1, the check valve 1 Outlet is connected with discharge outlet, and shut-off valve 1 is arranged in the water inlet of the water vat 1；

The second piston 4 is arranged in cylinder 3, and exhaust outlet, the exhaust ports setting is arranged in the bottom side of the cylinder 3 Check valve 28；It is connected inside the import of the check valve 28 and cylinder 3, import and the exhaust outlet phase of the check valve 28 Connection；

The top of the water vat 1 and the bottom opening of cylinder 3 simultaneously pass through piping connection, and shut-off valve 27 is arranged on the pipeline.

Above-mentioned shut-off valve 1 selects hand-operated valve or solenoid valve.

Above-mentioned shut-off valve 27 selects hand-operated valve or solenoid valve.

As shown in Fig. 2, a kind of method for obtaining air from water is included the following steps: using above-mentioned device

(1), shut-off valve 1 is first turned on, shut-off valve 27 is closed；

(2), driving first piston 2 move downward, water from water inlet through shut-off valve 1 enter water vat 1 cylinder body in, complete into Water process；

(3), opening stop valve 27, lock first piston 2 position, driving second piston 4 move upwards, water vat 1, cylinder 3 and Occurs negative pressure in respective line, when negative pressure is less than the air separation pressure of water, air inside water is dissolved in water vat 1 will be with The form separate out of bubble, and move upwards, entered in the cylinder body of cylinder 3 by shut-off valve 27, completes to obtain from water empty The process of gas；

(4), close shut-off valve 27, driving second piston 4 move downward, the air in cylinder 3 by check valve 28 automatically from Exhaust outlet discharge, completes exhaust process；

(5), opening stop valve 1, driving first piston 2 move upwards, by the water in water vat 1 by check valve 1 automatically from Discharge outlet discharge, completes drainage procedure.

Above-mentioned first piston 2 perhaps Mechanical Driven or is driven by electricity by manual actuation.

Above-mentioned second piston 4 perhaps Mechanical Driven or is driven by electricity by manual actuation.

The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations Also it should be regarded as protection scope of the present invention.

Claims

1. A device for obtaining air from water, characterized in that the device includes a water cylinder (1), a first piston (2), an air cylinder (3), a second piston (4), and a shut-off valve (6) , Stop valve two (7), one-way valve one (5) and one-way valve two (8);

The first piston (2) is set in the water tank (1), water inlet and drain are set on both sides of the top of the water tank (1), and a one-way valve is set at the drain of the water tank (1) One (5), the inlet of the one-way valve (5) is connected to the inside of the water tank (1), the outlet of the one-way valve (5) is connected to the drain port, and the water tank (1) A cut-off valve (6) is set at the water inlet;

The second piston (4) is arranged in the cylinder (3), and an exhaust port is arranged on the side of the bottom of the cylinder (3), and a one-way valve (8) is arranged at the exhaust port, and the one-way The inlet of the valve two (8) is connected with the inside of the cylinder (3), and the inlet of the check valve two (8) is connected with the exhaust port;

The top of the water tank (1) is opened with the bottom of the air cylinder (3) and connected through a pipeline, and a stop valve 2 (7) is arranged on the pipeline.

2. The device for obtaining oxygen from water according to claim 1, characterized in that: the stop valve one (6) is a manual valve or a solenoid valve.

3. The device for obtaining oxygen from water according to claim 1, characterized in that: the stop valve 2 (7) is a manual valve or a solenoid valve.

4. A method for obtaining air from water, characterized in that the device according to claim 1 is utilized, comprising the steps of:

(1), first open the stop valve one (6), close the stop valve two (7);

(2) Drive the first piston (2) to move downward, and the water enters the water cylinder (1) from the water inlet through the stop valve one (6) to complete the water intake process;

(3) Open the second shut-off valve (7), lock the position of the first piston (2), drive the second piston (4) to move upward, and negative pressure appears in the water cylinder (1), air cylinder (3) and corresponding pipelines , when the negative pressure is less than the air separation pressure of the water, the air dissolved in the water in the water tank (1) will dissociate in the form of bubbles, and move upward, and enter the cylinder (3) through the stop valve two (7) In the cylinder, the process of obtaining air from water is completed;

(4) Close the stop valve 2 (7), drive the second piston (4) to move downward, and the air in the cylinder (3) will be automatically discharged from the exhaust port through the check valve 2 (8), completing the exhaust process;

(5) Open the stop valve one (6), drive the first piston (2) to move upward, and automatically discharge the water in the water tank (1) from the drain port through the one-way valve one (5), completing the drainage process.

5. A method for obtaining oxygen from water according to claim 4, characterized in that: the first piston (2) is driven manually, or mechanically, or electrically.

6. A method for obtaining oxygen from water according to claim 4, characterized in that: the second piston (4) is manually driven, or mechanically driven, or electrically driven.