CN103334910A - Squeezing device using internal pressure generated by phase change during water freezing - Google Patents

Abstract

The present invention relates to an extrusion device utilizing internal pressure generated by phase transition when water freezes, belonging to the technical field of internal pressure generating devices in confined spaces. The invention consists of a closed working cabin (1) and an air storage tank (10). An elastic diaphragm (5) is arranged in the closed working cabin (1) to divide the working cabin into a working space (2) for containing water and a storage space for antifreeze. The first airtight space (6) for the liquid; the lower elastic diaphragm (13) is set in the gas storage tank (10), and the air storage tank is divided into the second airtight space (11) and the gas airtight space (12); the first airtight space The space (6) and the second closed space (11) are respectively connected through the downward connecting pipe (9) equipped with the downward pressure control switch (8) and the upward connecting pipe (14) equipped with the upward pressure control switch (15). The extruding device of the present invention can transform the internal pressure generated by phase transition when water freezes under natural climate or artificial conditions into isotropic pressure.

Description

An extrusion device that utilizes the internal pressure generated by the phase transition when water freezes

technical field

The invention relates to the technical field of a device for generating internal pressure in a confined space, in particular to an extrusion device utilizing the internal pressure generated by phase transition when water freezes.

technical background

According to the way of generating pressure, the pressure device can be divided into hydraulic extrusion device (hydraulic device), mechanical extrusion device and blasting extrusion device, etc., but now the extrusion device mainly relies on external energy to generate pressure; hydraulic extrusion device and mechanical extrusion device The pressure device needs to be equipped with a huge external system in the working cabin, which increases the difficulty of its automatic use in a confined space (such as the extremely low temperature in a cryogenic freezer); although the blasting extrusion device can generate pressure in a limited space, But the effective time is short. It can be seen that none of the above extrusion devices effectively utilizes the internal pressure generated when water freezes in a limited space.

Contents of the invention

The technical problem to be solved by the present invention is: the general extrusion device cannot effectively utilize the internal pressure generated when water freezes in a limited space. To solve this problem, the present invention provides a simple extruding device that utilizes the internal pressure generated by the phase transition when water freezes in a confined space, and the device only uses the internal pressure generated by the phase transition when water freezes in a confined space Work.

The technical solution adopted by the present invention is, an extrusion device utilizing the internal pressure generated by the phase transition when water freezes, consisting of a detachable working cabin and an air storage tank, an elastic diaphragm is set in the working cabin, and the working The cabin is divided into a working space for holding the working medium and a closed space for holding the incompressible antifreeze; an elastic diaphragm is set in the air storage tank to divide the air storage tank into a closed space for holding the incompressible antifreeze and a closed space for holding the incompressible antifreeze. The airtight space for compressible gas; the airtight space for containing the incompressible antifreeze in the working compartment is used to hold the air tank through the downward connecting pipe equipped with the downward pressure control switch and the upward connecting pipe equipped with the upward pressure control switch. Confined space connections for incompressible antifreeze.

The specific technical scheme is as follows:

An extrusion device that utilizes the internal pressure generated by the phase change when water freezes, consisting of an airtight working chamber 1 with a threaded detachable structure 4 and an air storage tank 10; the threaded detachable structure 4 passes through The threaded sealing plug 3 is sealed; the upper elastic diaphragm 5 is arranged in the airtight working cabin 1, and the airtight working cabin 1 is divided into the working space 2 for holding the working medium water and the first airtight space for holding the incompressible antifreeze 6. A lower elastic diaphragm 13 is set in the gas storage tank 10, and the gas storage tank 10 is divided into a second closed space 11 for containing incompressible antifreeze and a gas closed space 12 for containing compressible gas; The first enclosed space 6 is connected to the second enclosed space 11 through the downward connecting pipe 9 equipped with the downward pressure control switch 8 and the upward connecting pipe 14 equipped with the upward pressure control switch 15 respectively.

The downward pressure control switch 8 is connected with the downward pressure gauge 7 through the sensing element, and the upward pressure control switch 15 is connected with the upward pressure gauge 16 through the sensing element.

There are 1 or 3 detachable structures 4 with threads.

The extruding device of the present invention can transform the internal pressure generated by phase transition when water freezes under natural climate or artificial conditions into isotropic pressure. How it works is,

When the external temperature is lower than 0°C, the downward pressure control switch 8 and the upward pressure control switch 15 are closed, and the working medium in the working space 2 undergoes a water-ice phase transition, and the volume increases by about 8%. Objects placed in the working medium (such as piezoelectric ceramics placed in the working medium water that can generate potential differences with pressure changes) generate isotropic pressure, and at the same time, the increased internal pressure is transmitted to the first airtight seal through the upper elastic diaphragm 5 The incompressible antifreeze in the space 6, when the pressure in the working space 2 and the first closed space 6 reaches the set value, the downward pressure control switch 8 is opened, and the incompressible antifreeze in the first closed space 6 passes through the downward connection pipe 9 Enter the second closed space 11 in the gas storage tank 10; the entry of the incompressible antifreeze in the second closed space 11 makes the space of the gas closed space 12 smaller, and the pressure of the compressible gas in the gas closed space 12 increases, that is The pressure of all closed spaces in the gas storage tank 10 becomes larger. Under the action of the external heat source, the working medium in the working space 2 ends the water-ice phase transition process, the volume no longer expands, the pressure increase process ends, and the ice-water phase transition process begins. The volume of the working space 2 increases with the volume of the working medium. Decrease and decrease, the pressure of the first closed space 6 where the incompressible antifreeze is located decreases, when the pressure difference between the first closed space 6 and the second closed space 11 drops below the set value, the pressure on the downlink connecting pipe 9 The downward pressure control switch 8 is closed, and the upward pressure control switch 15 is opened; under the pressure of the compressible gas in the airtight space 12, the incompressible antifreeze in the second closed space 11 enters the first closed space through the upward connecting pipe 14 space6. After the ice-water phase transition is over, the extruding device returns to its original state; the extruding device is placed in an environment below 0° C., and the extruding device enters the process of generating pressure again.

The extruding device of the present invention can transform the internal pressure generated by phase transition when water freezes under natural climate or artificial conditions into isotropic pressure. If a turbine is installed in the downlink connecting pipe 9 and the uplink connecting pipe 14, then the incompressible antifreeze will be driven to rotate when going down and up, so that the internal pressure produced by the water-ice phase transition and ice-water phase transition of the present invention is converted into Available energy sources; or placing piezoelectric ceramics in the working space 2 can convert the internal pressure generated by the water-ice phase transition and ice-water phase transition of the present invention into available electrical energy.

Description of drawings

Fig. 1 is the schematic diagram of the extruding device of embodiment 1 of the present invention;

Fig. 2 is the schematic diagram of the extruding device of the embodiment 2 of the present invention.

Detailed ways

The present invention is described below through specific embodiments, but is not limited thereto.

Example 1

In Figure 1, 1. Airtight working cabin; 2. Working space, used to contain working medium water; 3. Threaded sealing plug; 4. Detachable structure with thread; 5. Upper elastic diaphragm; 6. First airtight Space, used to contain incompressible antifreeze; 7. Downward pressure gauge; 8. Downward pressure control switch; 9. Downward connecting pipe; 10. Gas storage tank; 12. Gas-tight space for containing compressible gas; 13. Lower elastic diaphragm; 14. Uplink connecting pipe; 15. Uplink pressure control switch; 16. Uplink pressure gauge.

As shown in Figure 1, the extruding device that utilizes phase transition energy to generate internal pressure when water freezes is composed of a closed working compartment 1 with a threaded detachable structure 4 and an air storage tank 10; the threaded detachable The structure 4 is sealed by a threaded sealing plug 3; an upper elastic diaphragm 5 is set in the airtight working cabin 1, and the airtight working cabin 1 is divided into a working space 2 for holding the working medium water and a first airtight space for holding the incompressible antifreeze space6. A lower elastic diaphragm 13 is arranged in the gas storage tank 10 to divide the gas storage tank 10 into a second airtight space 11 for containing incompressible antifreeze liquid and a gas closed space 12 for containing compressible gas. The first closed space 6 is connected to the second closed space 11 by the downward connecting pipe 9 and the upward connecting pipe 14 respectively; the downward pressure control switch 8 and the upward pressure control switch 15 are respectively housed in the downward connecting pipe 9 and the upward connecting pipe 14 .

The antifreeze in the first closed space 6 can be injected through the opening and then sealed.

It is also possible to connect the downward pressure control switch 8 with the downward pressure gauge 7 through the sensing element, and connect the upward pressure control switch 15 with the upward pressure gauge 16 through the sensing element.

Example 2

In FIG. 2 , the meanings of the respective reference numerals are the same as those in FIG. 1 . Only three detachable structures 4 with thread are provided on the airtight working cabin 1, wherein the detachable structure 4 with thread on the side of the airtight working cabin 1 is larger in size, so as to be used for adding larger Pressurized objects (such as piezoceramic generators).

Claims (3)

1. An extrusion device using the internal pressure generated by the phase transition when water freezes, consisting of an airtight working chamber (1) with a threaded detachable structure (4) and an air storage tank (10); the belt The threaded detachable structure (4) is sealed by a threaded sealing plug (3); an upper elastic diaphragm (5) is set in the airtight working cabin (1), and the airtight working cabin (1) is divided into The working space (2) for water and the first closed space (6) for containing incompressible antifreeze; the lower elastic diaphragm (13) is set in the air storage tank (10) to separate the air storage tank (10) It is the second airtight space (11) for holding incompressible antifreeze and the gas airtight space (12) for holding compressible gas; the first airtight space (6) is equipped with a downward pressure control switch (8) ) and the upward connecting pipe (14) equipped with an upward pressure control switch (15) are connected to the second closed space (11). 2. The extrusion device utilizing the internal pressure generated by the phase transition when water freezes according to claim 1, characterized in that the downward pressure control switch (8) is connected to the downward pressure gauge (7) by the sensing element connected; the upward pressure control switch (15) is connected with the upward pressure gauge (16) through the sensing element. 3. The extrusion device according to claim 1, characterized in that there are one or three detachable structures (4) with threads.

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