JPH051002U - Pressure vessel - Google Patents

Abstract

(57) [Summary] [Purpose] To eliminate the problems of the conventional bag life and tank seal repair by giving elastic force to the stainless steel sealed container by the elastic force of the spring. [Structure] An opening communicating with a water supply system is provided in a lower portion of a stainless steel hermetic container whose outer periphery is a corrugated pipe and whose end is sealed with a lid, and a spring is provided on an upper surface of the lid to mount a spring on the upper surface of the spring. Is fixed to the lower part of the sealed container.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pressure vessel that prevents a mallet action in a water supply system or the like.

[0002]

[Prior Art]

 In the conventional water supply system, there is a type of pressure vessel that prevents the action of a hammer from directly filling and discharging water after pre-filling air in the tank with a constant pressure. In such a simple type, there is a problem that a part of the gas dissolves in water and the gas filling pressure drops. Therefore, there is a type in which a flexible diaphragm is fixed to the peripheral portion of the inner wall of the tank to prevent contact between gas and water. However, even in such a pressure vessel, there are problems such as corrosion and water contamination due to contact of water with the inner surface of the tank, and there is a problem in terms of the life of the flexible diaphragm. Therefore, for example, as shown in FIG. 2 disclosed in Japanese Utility Model Publication No. 61-18241, a bag made of an elastic and flexible material is provided in the tank, and water is supplied and drained from the opening of the tank in the bag and the inner wall of the tank is also provided. There is a pressure vessel in which a gas is enclosed between the bag and the outer wall of the bag.

[0003]

[Problems to be solved by the device]

 In the above conventional pressure vessel, the bag is made of a material such as butyl rubber that is resistant to air permeation and has no sanitary problem due to direct contact with water. There was a problem of long-term life of the bag due to local expansion and generation of tensile stress, and local deformation due to the bag being folded and supplied with water. Further, since the gas is hermetically sealed in the tank with the bag body, it is necessary to make every possible effort to weld the tank and fix it to the bag body, which requires a lot of time for manufacturing.

[0004]

[Means for Solving the Problems]

 The gist of the present invention is to provide an opening communicating with a water supply system in the lower part of a stainless steel sealed container whose outer periphery is a corrugated tube and whose end is sealed with a lid, and a spring is provided on the upper surface of the lid to provide an upper surface of the spring. The pressure receiver is characterized in that the spring receiver is fixed to the lower part of the sealed container.

[0005]

[Action]

 According to the present invention, as described above, a spring is applied to a stainless steel hermetic container having an outer corrugated pipe to exert an elastic force on the hermetic container, so that the pressure water from the supply / discharge system enters the hermetic container. This is done by stretching and contracting the corrugated tube. Further, since no gas is enclosed, there is no relation to gas leakage, and the elastic force of the spring acts on the sealed container. Furthermore, since the sealed container is made of stainless steel, there are no problems in terms of hygiene and strength, and it can be safely used for a long period of time and is easy to manufacture.

[0006]

【Example】

 FIG. 1 is a vertical sectional view showing an embodiment of the present invention. In the figure, reference numeral 1 denotes a hermetically sealed container, one end of which is connected to an opening 2 made of stainless steel, and the other end of which is a corrugated stainless steel corrugated tube 4 which is hermetically sealed by a stainless steel lid 3. A spring 5 is provided on the upper surface of the lid 3, and an upper end of the spring 5 is locked by a spring receiver 6. The spring receiver 6 is provided with a flange 7 supported on the lower surface of the hermetic container 1 and a plurality of bolts 8. It is fixed at. Then, the spring 5 locked by the spring receiver 6 compresses the upper surface of the sealed container 1 downward, and since the outer circumference of the sealed container 1 is formed by the corrugated tube 4, it is easily compressed by the force of the spring 5. To do. The opening 2 communicates with a pipe of a water supply system or the like, and water in the water supply system or the like is supplied to and discharged from the sealed container 1. When an abnormality occurs in the water supply system and a sudden mallet pressure is generated, the pressurized water is supplied into the sealed container 1, and the sealed container 1 contracts the spring 5 and the outer peripheral corrugated pipe 4 of the sealed container 1 expands. It receives pressured water for a long time and expands. When the water pressure of the water supply system decreases, the force of the spring 5 causes the sealed container 1 to contract again, thereby preventing the water supply system from acting as a hammer.

[0007]

[Effect of the device]

 By the above, the pressure vessel of the present invention has the following effects. 1) The sealed container that holds water is made of stainless steel, so there is no air or water permeation, and the strength is high, so it can be used safely for a long period of time. 2) Furthermore, it can be used safely without any problems in hygiene as compared with the conventional rubber bag containing water. 3) No gas-tight container is required, so it can be easily manufactured, and there is no failure due to gas leakage. 4) Since the outer circumference of the sealed container is a corrugated tube, the direction of deformation during expansion and contraction is always constant, and the spout preventing ability can be easily adjusted by changing the spring size.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a vertical sectional view showing a conventional pressure vessel.

[Explanation of symbols]

 1 Sealed Container 2 Opening 3 Lid 4 Corrugated Pipe 5 Spring 6 Spring Receptor 7 Flange 8 Bolt

Claims (1)

[Claims for utility model registration] [Claim 1] An opening communicating with the water supply system is provided at the bottom of a stainless steel sealed container whose outer periphery is a corrugated pipe and the end is sealed with a lid, and a spring is provided on the upper surface of the lid. A pressure vessel characterized in that a spring receiver on the upper surface of the spring is fixed to the lower portion of the hermetically sealed vessel by being interposed.