JP3232554U - Pressurizing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pressurizing device capable of ensuring insulation and airtightness and realizing miniaturization. A pressurizing device is arranged in a pressure vessel 4 sealed with a lid 3, a high pressure pipe 6 connected to the pressure vessel to supply high pressure fluid, a branch portion 5 connected to the high pressure pipe, and a branch portion. Insulated by having an electrode joint 7 to be formed, an electrode member connected to the electrode joint and inserted into a pressure vessel, and an insulating portion arranged in the electrode joint and insulating the electrode body connected to the electrode member. It is possible to secure the property and airtightness, and to realize the miniaturization. [Selection diagram] Fig. 2

Description

The present invention relates to a pressurizing device.

Conventionally, a pressurizing device (isotropic pressurizing device) has been used for high-pressure processing of foods, compression molding of raw materials such as metals and ceramics, and the like.
It is known that by boosting or depressurizing the raw material in the pressure vessel of the pressurizing device within the range of 10 to 500 MPa, effects such as changes in the outer surface or internal structure and changes in physical properties can be obtained. In recent material development, the need for high-performance materials has become stronger, and as a method of enhancing functionality, not only pressurizing the raw material, but also adding voltage (current) and applying chemical treatment are being considered. There is.

For example, although the emphasis is on detecting changes in physical properties, a pressure vessel holding a liquid is provided so as to be able to move up and down in the vertical direction by a cylinder, and above the pressure vessel, in the pressure vessel as the pressure vessel rises. A pressing body that is inserted and pressurizes the liquid is provided in a fixed state, and a cup-shaped storage device that stores the object to be processed is detachably fitted to the lower end of the pressing body, and a through hole through which the liquid enters the storage device. (For example, Japanese Patent No. 3333675, hereinafter referred to as "Patent Document 1") has been disclosed in which an isotropic pressure processing apparatus provided with a pressure vessel having a fixed electrode arranged inside a pressing body.

In addition, as an electric device such as a heater, a coil, and a thermocouple is arranged in the pressure vessel, the sealing method around the electrode insertion hole is improved to prevent the packing from being pushed out to the straight hole side when using high pressure. An electrode device of a hydrostatic pressure pressurizing device capable of preventing a decrease in the initial seal surface pressure has been disclosed. (For example, refer to Japanese Patent Publication No. 3-34639, hereinafter referred to as "Patent Document 2").

Japanese Patent No. 3333675 Jitsufuku No. 3-34639

However, as in Patent Document 1, when a coating layer coated with an insulating material such as ceramics is provided on the fixed electrode inside the pressing body, if the fixed electrode is repeatedly attached and detached, the coated coating layer is peeled off. The coating layer had to be coated again, and there was a problem with insulation.

Further, as in Patent Document 2, although a device for arranging a conical packing in the tapered hole to improve airtightness has been disclosed, when sealing the tapered shape, the pressure vessel is directed from the inside to the outside. Since the pressing force acting on the surface is surely generated, intrusion of packing, sealing material, etc. into the inside is not always avoided, and there is a problem of airtightness.
Furthermore, as a means of pressurizing the liquid in the pressure vessel, in order to increase the pressure by supplying the high-pressure fluid from the outside, it is necessary to form a flow path for supplying the high-pressure fluid, and the side-by-side with the electrode is realized. In order to do so, there is also a problem related to miniaturization that the device configuration becomes more complicated.

In view of the above problems, the present invention provides a pressurizing device capable of ensuring insulation and airtightness and realizing miniaturization.

In order to solve the above problems, the present invention
A pressure vessel sealed with a lid and
High-pressure piping that connects to a pressure vessel and supplies high-pressure fluid,
A branch that connects to high-pressure piping and
Electrode joints placed at the branch and
An electrode member that is connected to an electrode joint and inserted into a pressure vessel,
It is arranged in the electrode joint and has an insulating portion that insulates the electrode body connected to the electrode member.

According to the pressurizing device of the present invention, it is possible to provide a pressurizing device capable of ensuring insulation and airtightness and realizing miniaturization.

It is a perspective view which showed the pressurizing apparatus of this embodiment. It is sectional drawing which shows the pressurizing apparatus of this embodiment. It is sectional drawing which shows the detail of the electrode joint of the pressurizing apparatus of this embodiment.

Next, an embodiment of the present invention will be described in detail with reference to the drawings as appropriate.

The pressurizing device 1 of the present embodiment is a device that performs high-pressure processing of foods, compression molding of raw materials such as metals and ceramics, and the like. The pressure treatment can be performed by pressurizing the raw material M in the range of 10 to 500 MPa in the pressure vessel 4 of the pressurizing device 1.
The pressurizing device 1 includes a pressure vessel 4, a high-pressure pipe 6, a branch portion 5, an electrode joint 7, electrode members 8a to 8d, and an insulating portion 12.

The pressure vessel 4 is a container for accommodating the raw material M, and is sealed with a lid 3. The pressure vessel 4 may be made of a metal such as stainless steel or a resin, and has a pressure resistant specification. After the raw material M is housed in the pressure vessel 4, the airtightness can be maintained by sealing the inside of the pressure vessel 4 with the lid 3. The pressure vessel 4 is arranged or formed in the main body 2 and is fixed by a frame such as a frame 2a.

The lid 3 is a lid for opening and closing the pressure vessel 4. The pressurizing device 1 is used under a high pressure condition of 10 to 500 MPa, and the internal pressure in the pressure vessel 4 at the time of pressurization must be secured. For example, the lid 3 and the pressure vessel 4 can be tightly sealed by a connecting member such as a bolt or a screw member. In addition to the manual method, an automatic fixing method or the like can be appropriately selected.

The high-pressure pipe 6 is a pipe connected to the pressure vessel 4 to supply the high-pressure fluid F. The high-pressure pipe 6 is a pipe made of a member having pressure resistance. The pressurizing device 1 is a hydraulic pressurizing device 1 that pressurizes using a high-pressure fluid F generated by a high-pressure fluid supply source (high-pressure pump) P, and a connection port for introducing the high-pressure fluid F is a pressure vessel 4. Form in. The connection port is a hole of a passage formed in the lower portion or the side portion of the pressure vessel 4, and is connected to the high-pressure fluid supply source P via the high-pressure pipe 6.

The branch portion 5 is connected to the high-pressure pipe 6, supplies the high-pressure fluid F from the high-pressure fluid supply source (high-pressure pump) P to the high-pressure pipe 6, and is an electrode member of the electric wire 8 (first electric wire (positive electrode) 8a, This is a portion through which the second electric wire (negative electrode) 8b) is inserted. The branch portion 5 may have a branch flow path such as a manifold, and is fixed to the high-pressure pipe 6 at one end and the electrode joint 7 is fixed at the other end. By fixing the electrode joint 7 and arranging the branch portion 5 that forms the flow path of the high-pressure fluid F, the stability of the device can be ensured.

A high-pressure fluid supply flow path 5a through which the high-pressure fluid F passes from the high-pressure fluid supply source (high-pressure pump) P is formed in the branch portion 5. The high-pressure fluid supply flow path 5a may be one or a plurality of two or more, and in the present invention, two flow paths (positive electrode flow path 5b, through which two types of electrode members, a positive electrode and a negative electrode, are inserted. It is composed of a total of three flow paths, that is, a negative electrode flow path 5c) and a flow path for supplying the high-pressure fluid F. The configuration of the branch portion 5 and the electrode joint 7 in the present invention makes it possible to reduce the size of the device.

The electrode joint 7 is a joint that is arranged at the branch portion 5 and fixes the electrode body 9. The electrode joint 7 includes an electrode body 9, a fixing portion 10, a cap 11, an insulating portion 12, an auxiliary insulating portion 13, an insulating tube 14, a backup ring 15, an outer sealing portion 16, and an inner sealing portion 17. And have.

The electrode body 9 is made of a metal such as stainless steel, and is an electrode member through which a voltage (current) can pass. The electrode body 9 is connected to the first electric wire (positive electrode) 8a and the second electric wire (negative electrode) 8b at one end, and is connected to the third electric wire (positive electrode) 8e and the fourth electric wire (negative electrode) 8f at the other end. When connected, a voltage (current) is supplied from a first power source (positive electrode) V1 and a second power source (negative electrode) V2.
As shown in FIG. 3, the electrode main body 9 is composed of an end portion 9a, a central portion 9b, and a straight portion 9c so that the positions of the electrode main body 9 do not shift. The end portion 9a is a protrusion at the tip on the high-pressure fluid side, and is connected to the central portion 9b. The central portion 9b is located between the end portion 9a and the straight portion 9c, and has a diameter larger than that of the end portion 9a and the straight portion 9c. The straight portion 9c is on the power supply V1 and V2 sides and is connected to the central portion 9b.

The fixing portion 10 fixes the electrode joint 7 to the branch portion 5. It is fixed by forming a groove on the surface of the branch portion 5 itself and the fixing portion 10 in contact with the branch portion 5. Alternatively, fix it separately from the outside with bolts or screws.

The cap 11 is arranged at the end 9a of the electrode body. The cap 11 is configured to cover the end portion 9a of the electrode body.

The insulating portion 12 is arranged below the cap 11 and is configured to cover the end portion 9a of the electrode body so that the voltage (current) that energizes the electrode body 9 (end portion 9a) does not flow to the outside. The material of the insulating portion 12 is a member having an insulating property such as resin or ceramic.

The auxiliary insulating portion 13 has the same function as the insulating portion 12, but does not allow a voltage (current) to energize the electrode body 9 (central portion 9b, straight portion 9c) to flow to the outside. By fixing to a location different from the insulating portion 12, the insulating effect can be obtained in multiple layers by the insulating portion 12 and the auxiliary insulating portion 13. The material of the auxiliary insulating portion 13 is a member having an insulating property such as resin or ceramic.

The insulating tube 14 has the same function as the insulating portion 12 and the auxiliary insulating portion 13, but does not allow a voltage (current) to energize the electrode body 9 (straight portion 9c) to flow to the outside. By fixing the insulating tube 14 at a position different from the insulating portion 12 and the auxiliary insulating portion 13, the insulating effect can be obtained in multiple layers by the insulating portion 12, the auxiliary insulating portion 13, and the insulating tube 14. The insulating tube 14 insulates the straight portion 9c, and insulates a portion longer than the insulating portion 12 and the auxiliary insulating portion 13.

By arranging the insulating portion 12, the auxiliary insulating portion 13, and the insulating tube 14 all around the electrode main body 9 in this way, the electrode main body 9 does not come into contact with the branch portion 5.

Further, in order to prevent the high-pressure fluid F from entering the inside and seal the electrode body 9 (having airtightness), the backup ring 15, the outer seal portion 16, and the inner seal portion 17 are arranged.

The backup ring 15 seals the electrode body 9 (central portion 9b). The material of the backup ring 15 is an insulating member such as resin or ceramic.

The outer seal portion 16 and the inner seal portion 17 seal the electrode body 9 (end portion 9a). The material of the outer seal portion 16 and the inner seal portion 17 is a member having insulation and elasticity such as rubber. The inner sealing portion 17 comes into contact with the electrode body 9 (end portion 9a) and seals the electrode body 9 (end portion 9a) from the inside. The outer seal portion 16 is arranged outside the inner seal portion 17, seals the inner seal 17, and seals the inner surfaces of the positive electrode flow paths 5b and the negative electrode flow paths 5c. By adopting such a seal configuration, high airtightness can be realized.

The electrode members 8a to 8d are members that are connected to the electrode joint 7 and inserted into the pressure vessel 4. The electrode members 8a to 8d include a first electric wire (positive electrode) 8a, a second electric wire (negative electrode) 8b, a first tip portion 8c, a second tip portion 8d, and a third electric wire (positive electrode). 8e, the fourth electric wire (negative electrode) 8f.

The first electric wire (positive electrode) 8a and the second electric wire (negative electrode) 8b use the high voltage pipe 6 and the voltage (current) supplied from the first power source (positive electrode) V1 and the second power source (negative electrode) V2. It is an electric wire that passes through the high-pressure fluid supply flow path 5a and is supplied into the pressure vessel 4. The first electric wire (positive electrode) 8a and the second electric wire (negative electrode) 8b are electric wires having pressure resistance and water resistance.

The first tip portion 8c and the second tip portion 8d are portions fixed to the tips of the first electric wire (positive electrode) 8a and the second electric wire (negative electrode) 8b, respectively. By bringing the first and second tip portions 8c and 8d into contact with the raw material M, electricity can be applied by the action of the positive electrode and the negative electrode, and the physical properties of the raw material M can be changed. The voltage (current) can be added to the raw material M by adjusting with the control panel.

The third electric wire (positive electrode) 8e and the fourth electric wire (negative electrode) 8f are electric wires connecting the first power supply (positive electrode) V1, the second power supply (negative electrode) V2, and the electrode body 9. The third electric wire (positive electrode) 8e and the fourth electric wire (negative electrode) 8f are electric wires having pressure resistance and water resistance.

The process of the pressurizing process using the pressurizing device 1 of the present embodiment will be described.

First, the tip of the electric wire (first tip (positive electrode) 8c, second tip (negative electrode) 8d) arranged in the pressure vessel 4 is attached to the raw material M. After that, the lid 3 of the pressure vessel 4 is closed, and the pressure vessel 4 is filled with the high pressure fluid F from the high pressure fluid supply source (high pressure pump) P to pressurize. The high-pressure fluid F reaches the pressure vessel 4 from the high-pressure fluid supply source (high-pressure pump) P through the high-pressure fluid supply flow path 5a in the branch portion 5 and the high-pressure pipe 6. The pressure is set in the range of 10 to 500 MPa depending on the type and purpose of the raw material M.

Next, the power source (first power source (positive electrode) V1 and second power source (negative electrode) V2) is activated and passed through the electric wire 8 (first electric wire (positive electrode) 8a, second electric wire (negative electrode) 8b). The voltage (current) is supplied to the tip portion (first tip portion (positive electrode) 8c, second tip portion (negative electrode) 8d). The tip (first tip (positive electrode) 8c, second tip (negative electrode) 8d) is in contact with the raw material M, and by pressurizing while the positive and negative electrodes are energized, the physical properties due to voltage (current) Both changes and changes in physical properties due to pressurization can be applied at the same time.

After processing for a predetermined time, the power supply (first power supply (positive electrode) V1, second power supply (negative electrode) V2) and high-pressure fluid supply source (high-pressure pump) P are stopped, and the voltage (current) is not energized. Return to normal pressure zone. Then, after ensuring safety, the lid 3 is opened and the processed raw material M is taken out.

As described above, the present invention is not limited to the above-described embodiment, and it goes without saying that the present invention can be appropriately modified without departing from the spirit of the present invention.

1 Pressurizing device 2 Main body 2a Frame 3 Lid 4 Pressure vessel 5 Branch part 5a High pressure fluid supply flow path 6 High pressure piping 7 Electrode joint 8 Electric wire 9 Electrode body 10 Fixing part 11 Cap 12 Insulation part 13 Auxiliary insulation part 14 Insulation tube 15 Backup Ring 16 Outer seal 17 Inner seal F High-pressure fluid M Raw material P High-pressure water supply source (pump)
V1 power supply (positive electrode)
V2 power supply (negative electrode)

Claims (6)

A pressure vessel sealed with a lid and
A high-pressure pipe that is connected to the pressure vessel and supplies high-pressure fluid,
A branch portion connected to the high-pressure pipe and
Electrode joints arranged at the branch and
An electrode member connected to the electrode joint and inserted into the pressure vessel,
A pressurizing device that is arranged in the electrode joint and has an insulating portion that insulates an electrode body connected to the electrode member. The pressurizing device according to claim 1, further comprising an auxiliary insulating portion that insulates the electrode body. The pressurizing device according to claim 1 or 2, further comprising an insulating tube that insulates the electrode body. The pressurizing device according to any one of claims 1 to 3, wherein the branch portion has a high-pressure fluid supply flow path for supplying the high-pressure fluid. The pressurizing device according to any one of claims 1 to 4, wherein the electrode body is surrounded by the insulating portion, the auxiliary insulating portion, and the insulating tube and does not come into contact with the branch portion. The pressurizing device according to any one of claims 1 to 5, further comprising an inner seal portion that seals the electrode body and an outer seal portion that seals the inner seal portion in the branch portion.

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