JPH0685901U - Accumulator and pressure fluctuation prevention device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a device for preventing pressure fluctuation of a fluid. A movable wall having a slidably movable orifice is provided in a cylinder, and fluid pressure supplied to the discharge portion is prevented while operating the movable wall.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a device for preventing pressure fluctuation of a fluid.

[0002]

[Prior art]

 In general, as shown in FIG. 2, the accumulator is connected to the raw material tank 1 and the supply device 2 by the supply pipe 11, and the tank 14 and the supply device 2 which are structured to feed the gas 13 by the pipe 15. A pipe 16 branched from the pipe 15 supplies the raw material.

Normally, the pressure fluctuation generated by the supply device 2 is transmitted to the tank 14 through the pipe 15, and the gas amount or pressure sent to the tank 14 is changed according to the value of the pressure gauge 10 to change the pressure of the pipe 15. Was supposed to be kept constant.

[0004]

[Problems to be solved by the device]

 However, in the above technique, since the pressure of the gas 13 is changed according to the value of the pressure gauge 10, it is not possible to cope with a sudden and short cycle pressure fluctuation. Further, since the liquid in the tank 14 hardly moves, it becomes a dead space and the quality is deteriorated, and the space is taken up because the tank 14 is large.

The present invention is intended to solve the above-mentioned problems, and when the fluid is sent, for example, periodic pressure fluctuations of the pump do not require a large space, and pressure fluctuations are prevented in-line. An object of the present invention is to provide an accumulator and a pressure fluctuation preventive device.

[0006]

[Means for Solving the Problems]

 This invention takes the following means in order to solve the above problems. That is, this invention takes the following means in order to solve such a problem. The present invention includes a supply unit 6, a cylinder 4, a return unit 9, and a discharge unit 5, the supply unit 6 is connected to the discharge unit 5, one end of the cylinder 4 is connected to the discharge unit 5, and the cylinder 4, a movable wall 7 having an orifice 12 is slidably provided, a buffer member is provided behind the movable wall 7, and the other end of the cylinder 4 is connected to a return part 9. In addition, the return part 9 of the accumulator is opened to the supply pipe 11 connecting the raw material tank 1 and the supply device 2, and the supply part 6 is connected to the other end of the supply device 2. It is a pressure fluctuation prevention device.

The present invention will be described in detail below with reference to the drawings. In FIG. 1, the liquid in the raw material tank 1 is supplied by the supply device 2 and moves in the accumulator 3 toward the cylinder 4 or toward the discharge part 5. When a pressure fluctuation occurs due to the supply device 2, a force is absorbed by a buffer member such as a panel 8 when the movable wall 7 in the cylinder 4 moves, and is returned to the supply pipe 11 from the return section 9. This pressure fluctuation prevention device enables the pressure to be stabilized with high accuracy by arbitrarily selecting the spring and the orifice 12 mounted on the movable wall.

By the above means, when the movable wall of the cylinder that is connected to the supply unit slides, the pressure fluctuation is absorbed by the buffer member, and the pressure in the discharge unit is kept substantially constant.

[0009]

[Effect of device]

 This invention can remarkably reduce the periodic pressure fluctuation, particularly when a liquid is used as the fluid, a spring or gas is used as the buffer, and a pump is used as the supply device.

[Brief description of drawings]

FIG. 1 is a front view of a pressure fluctuation prevention device of the present invention.

FIG. 2 is a front view of a conventional accumulator.

[Explanation of symbols]

 1 Raw material tank 2 Supply device 3 Accumulator 4 Cylinder 5 Discharge part 7 Movable wall 9 Return part 12 Orifice 14 Tank

Claims (2)

[Scope of utility model registration request] 1. A supply section (6), a cylinder (4), a return section (9), and a discharge section (5), the supply section (6) being connected to the discharge section (5), the cylinder (4). ) Is connected to the discharge part (5) and the cylinder (4)
A movable wall (7) having an orifice (12) is slidably provided inside thereof, a buffer member is provided behind the movable wall (7), and the other end of the cylinder (4) is provided with a return portion (9). )
An accumulator characterized by being connected to. 2. The return part (9) of the accumulator according to claim 1 is opened to a supply pipe (11) connecting the raw material tank (1) and the supply device (2), and the supply part (6) is provided to the supply device (6). A pressure fluctuation preventing device characterized in that it is connected to the other end of 2).