JPS61232178A - Discharger - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an apparatus for pressurizing a bag containing a flowable material with a separately prepared fluid and discharging the material inside the bag.
The example relates to devices that can be adapted to be portable.

Fields in which the present invention can be used include extrusion and/or filling of cracks and voids with extinguishing agents such as adhesives and caulks, spraying and injection of insecticides into wood, colorants, flame retardants, insects, etc. injection into wood and structures such as repellents, injection into wood with preservatives, injection and/or filling of lubricants such as grease, molybdenum disulfide dispersions, cement milk, mortar, grouting petone, water glass, etc. injection and/or filling of refractory layers such as castables, injection and/or filling of pastes such as ceramics into voids and gaps, stuff ink materials, seasonings, fats and oils,
Examples include injecting coloring into cooking ingredients and filling sausage ingredients into casings.

[Technology background]

Devices that apply pressure to dispense flowable materials, such as liquids such as solutions, suspensions, viscous materials such as greases and thick suspensions, and powders, must contain flowable materials. An example of such a device is a so-called pressure accumulator type in which pressurized gas is constantly sealed above a flowable material (hereinafter sometimes referred to as discharge material). Insecticides, fire extinguishers, paints,
Pressurized fire extinguishers are used to expel topical medicines, etc., and use gas in small cylinders or cartridges such as carbon dioxide gas when used, such as fire extinguishers. Devices that guide gas into containers are used to discharge pesticides, paints, etc. Most of these types of containers have a tube that guides the discharged material upward, making them difficult to use when the container is placed horizontally or upside down. It can be difficult to clean.

Another method of applying gas pressure to the discharged material is to store the discharged material, such as a fire extinguisher, in a bag made of a flexible material such as polyethylene, place the bag in a container, and release carbon dioxide gas from the bottom of the container. There are some that use pressurized gas drawn from a cylinder or cartridge. This type of device can be used horizontally or upside down, and the pressurized gas used for operation does not easily cause dry deposits, making it easy to clean the inner surface of the container.
It has the feature that measures such as anti-corrosion coating on the inner surface of the container can be omitted or reduced.

In this type of device, when in use, the bottom of the bag that accommodates the discharged material (the side opposite to the outlet of the bag) and the body (side part) of the bag are strongly folded to form a bag. It is necessary to create a deformation that causes the extinguishing agent to enter the inside of the body. For example, in the case of a fire extinguisher, the discharge speed of the extinguishing agent is determined by the speed at which the bottom of the bag enters the bag. . In such a device, if the shape of the outlet of the bag or the shoulder of the bag is not in close contact with the shape of the inner wall of the outlet or shoulder of the container, the outlet of the bag or the shoulder of the bag during use. The shoulder part r cannot resist the tensile force generated by being pushed by the discharged material and may break.

[Purpose of the invention]

An object of the present invention is to provide a dispensing device in which a flexible bag containing a reed dispensing material in a container is easily deformed by the pressure of an operating pressurized fluid. Another object of the present invention is to provide a dispensing device in which the bag containing the dispensing material is not easily damaged during use. Another object of the present invention is to provide a dispensing device capable of increasing the dispensing speed of the dispensing material.

[Structure of the invention]

The present invention is a dispensing device for pressurizing a flexible bag containing a flowable material with a pressurized fluid, the discharging device comprising: This discharge device is characterized by having a member having a passage formed between inner walls through which the pressurized fluid flows.

Next, the present invention will be explained based on the accompanying drawings.

FIG. 1 is a longitudinal sectional view showing an example of the present invention, in which the present invention is applied to a fire extinguisher. A flexible bag 1, for example made of polyethylene, containing the extinguishing material discharged is arranged in the shell 2 of a pressure-resistant container, which is made of a conventionally used shed or a medium-sized portable container. It has a cylindrical part like a portable fire extinguisher. The outer shell of the container has, for example, a tip with or to which a fire extinguishing agent discharge nozzle is attached, an intermediate body and a bottom, the outer shells can be connected by means of, for example, a spigot.

The material discharge port of the flexible bag is attached to the tip of the container, and the material discharge port of the flexible bag has a rupture disc and a pipe-shaped member with holes formed on the side, like a general fire extinguisher. It has been inserted. The extinguishing agent contained in the flexible bag is powder such as sodium bicarbonate, monoammonium phosphate, diammonium phosphate, etc., or a mixture of these powders and a gas such as carbon dioxide, or an aqueous solution of potassium carbonate. etc. can be used.

A member 3 (hereinafter sometimes abbreviated as a spacer) is arranged between the bag body and the inner wall of the outer shell of the container to form a passage through which pressurized fluid flows.

The spacer directs pressurized fluid, such as pressurized carbon dioxide gas, into the flexible bag containing the dispensing material when the dispensing device is in use and/or in preparation for use.

The spacer can be made of polyethylene or the like, and the spacer can have a cylindrical shape or a generally flat spacer that is expanded into a cylindrical shape. The spacer has a flow path for pressurized fluid, for example, a spacer with a lattice-shaped spread and a lattice frame with zigzag bends in the thickness direction of the lattice, or an outer shell of the container in the thickness direction of the lattice. For the inner wall of the filament, it is possible to use a material having knob-like protrusions or recesses on both sides in the thickness direction, or a material made of spiral coiled filament in the form of a sheet.

Another form of spacer may be a perforated corrugated sheet rolled in a direction intersecting the corrugations. The spacer can be provided between the side of the bag containing the discharged material and the inner wall of the outer shell of the container to pressurize the side of the bag. Furthermore, place a spacer at the outlet of the bag body (discharge port).
It can be provided around the periphery or around the shoulder of the bag to pressurize the area around the outlet or the shoulder of the bag. A spacer extending toward the bottom of the bag can be used. The spacer can also be inserted into the outer shell of the container for sand dumping, and can be secured to a protrusion such as a nub by pressure adhesive or the like.

A bag body containing the discharged material is attached to the tip of the container,
The folded container can be inserted from the outside of the container and installed, and the dispensing device can be installed from the inside to facilitate disassembly and assembly. The shape of the attachment part between the bag and the container is such that if the outlet of the bag has a male thread like a tube toothpaste, it is screwed into the tip of the container and/or the screw of the bag is extended to the outside of the container. A shape that protrudes and is tightened with a nut, a shape that uses a spigot, or a shape that has the outlet of the bag shaped like a tapered tube and is secured with a cis-snap ring that is held down with a pin from the outside of the tip of the container can be used.

The bag that houses the discharged material can be sealed at the bottom on the side opposite to the outlet by heat-sealing, etc. In another form, the bag that is opened can be used in the form of an ice pillow clip after or before filling with the discharged material. You can use something tied with string or a band.

The discharged material can be filled from the outlet of the bag or the opening at the bottom of the bag, and by using a pressure-resistant container with an outer shell that can be separated into two parts, it is possible to fill the material from the bottom of the bag. It is convenient for replacing bags.

In the present invention, a permeable and flexible member such as a perforated film, perforated sheet, net, woven fabric, or knitted fabric ψ is provided between the flexible bag and the spacer. It is possible to protect the slide and the bag from being pressed against the spacer and being deformed or damaged. The permeable, flexible member can be cylindrical or bag-shaped, and the bag-shaped member can be used with the bottom of the flexible bag below the outlet. It is preferable to use a cylindrical bag with the bottom closed with a string or band so that the flexible bag can be supported from the bottom when the bag is folded.

The permeable flexible member can be sanded the entire length of the flexible bag or near the bottom. One end of the member, for example, the upper portion thereof, can be attached to the outlet of the flexible bag, and a protrusion made of adhesive or the like can be provided inside the outer shell of the container to provide an expanded hearing aid. It can be fixed with a ring, etc., or it can be fixed with a part of a spacer.

[For production]

The operation of the present invention will be described below with respect to the above-mentioned example of a fire extinguisher, and the order of operation when using the fire extinguisher.

■The pressurized gas flows inside the outer shell of the fire extinguisher, passes through the flow path of the spacer, and quickly reaches the bag containing the extinguishing agent.

■The pressurized gas presses the bag from the outside and extinguishing agent is ejected.

■The bag containing the extinguishing agent contracts from the side of the bag.

When the bag is pressed from the outside during use of the fire extinguisher, the tendency for the bag to expand outwards due to the pressure of discharged material within the bag and to create tensile forces on the bag is greatly reduced.

The discharging device of the present invention can be used for discharging, squirting, and extruding various materials other than fire extinguishers. For example, the discharged materials mentioned in the section on industrial applications can be used, and gases such as carbon dioxide gas, nitrogen gas, and air, and liquids such as water and oil can be appropriately used as pressurized fluids. If the pressurized fluid is a gas, it can be introduced from a cylinder or a cartridge. Alternatively, the gas or liquid can be fed into the discharge device using a pressurizing means such as a bomb 1 integrated with the discharge device. Examples include those that use pressurized fluid from an external compressor or pump, water from a water tank, etc. A pressure gauge or a safety valve can be appropriately attached to the outer shell of the container, a valve can be provided to the discharge nozzle as necessary, and a pressurized fluid discharge valve can be provided.

〔effect〕

The effects of the present invention can be listed as follows.

In the relationship between the pressurized fluid for operation and the bag body that houses the discharged material, ■The pressurized fluid presses almost all the outer surface of the bag body, for example, only the bottom of the bag body as in the conventional case. It is possible to avoid local deformation of the bag due to compression and pushing.

■In the case of a fire extinguisher, almost all parts of the bag contract (except for the area near the bag outlet), resulting in less deformation of the bag than when a conventional fire extinguisher with a bag body squirts the same volume of extinguishing agent. It is easy to perform and can increase the force with which the extinguishing agent is ejected.

(1) The pressure of each part inside the bag is equal to the pressure of the pressurized fluid #1, so the bag can be made thinner, the resistance to deformation of the bag can be reduced, and, for example, the force with which the extinguishing agent is ejected can be increased.

■The bag receives the pressure of the pressurized fluid from the outside from the vicinity of the bag outlet to the shoulder, which prevents the generation of a very large tensile stress on the bag and prevents damage from the vicinity of the bag outlet to the shoulder K. It can be avoided.

■For example, in the case of a fire extinguisher, the extinguishing agent inside the bag is spread in almost all directions (
The extinguishing agent is pressed from three dimensions) and has little resistance to flow inside the bag, increasing the force with which the extinguishing agent is ejected.

■The presence of the bag can reduce corrosion within the pressure-resistant outer shell of the fire extinguisher.

■In the case of a fire extinguisher, the present invention can be applied to a conventional fire extinguisher by making partial changes.

(2) In the case of a fire extinguisher, there is no need to locate the pressurized gas source for operation at the bottom of the fire extinguisher (for example, on the opposite side of the nozzle) as in the conventional case. There is no need to incorporate a pump or cartridge for the pressurized gas source into the fire extinguisher, and more extinguishing agent can be stored in the fire extinguisher than in the past.

(2) The outer spacer extending from the vicinity of the outlet of the bag to the shoulder K serves as a cushioning material, so that the bag is not directly pressed against the protrusion inside the outer shell of the container, and damage to the bag can be avoided.

[Phase] In the case of a fire extinguisher, when the extinguishing agent is ejected, the pressurized gas quickly moves to the outside of the bag according to the storage deformation of the bag, smoothing out the deformation of the bag and the ejection of the extinguishing agent.

■ Replacement or reuse of the bag body Various types of discharged materials can be handled.

[Co., Ltd.] Various types of caulking agents and adhesives can be discharged at will, and materials with short pot lives after mixing, such as two-component epoxy resins and polyurethane, can be filled into bags before use. It can be used as

[Phase] Cement material, moxibustion-resistant syringe, ceramic paste, etc. can be filled into a bag and extruded before use, and there are no sliding parts like a plunger or bush type syringe, which prevents wear on the dispensing device. There is almost no need for strict inspection.

[Co., Ltd.] It is used for food processing and cooking, making it easy to manage hygiene. It can be operated at higher pressure than a truncated conical bag with a spout during injection and extrusion of discharged materials, and can avoid generating heat unlike a set of screws.

Brief explanation of the eccentric surface FIG. 1 is a sectional view showing an example of the present invention, and FIGS.

that's all

Claims (5)

[Claims] (1) A discharge device that pressurizes a flexible bag containing a flowable material with a pressurized fluid, the discharge device including the flexible bag and the outer shell of a pressure-resistant container containing the flexible bag. A discharge device comprising a member having an inner wall forming a passage through which the pressurized fluid flows. (2) Claims characterized in that the member forming the passage through which the pressurized fluid flows extends between the vicinity of the outlet or the shoulder of the flexible bag and the inner wall of the outer shell of the pressure-resistant container. The discharge device according to item (1). (3) A permeable and flexible cylindrical or bag-like member is provided between the flexible bag and the member forming a passage through which pressurized fluid flows. The discharge device according to item 1) or item (2). (4) The discharge device according to claim (1), (2) or (3), characterized in that the outer shell of the pressure-resistant container can be separated into two or more pieces. (5) Claims (1), (2), (3), or (4), characterized in that the flexible bag has an opening that can be opened and closed at the bottom. Discharge device.