阅读说明：本技术 一种超纯水高压泵 (Ultrapure water high-pressure pump ) 是由 武子全 于 2020-05-06 设计创作，主要内容包括：一种超纯水高压泵,包括至少一个组合缸体。每个组合缸体均包括液压缸、空壳体和水缸体。液压缸缸体右侧固定连接空壳体左端。活塞杆中段穿过空壳体。活塞杆右端穿入水缸体,水缸体左端和空壳体右端固定连接。水缸体有水入口和水出口。水缸体左端设有活塞杆密封装置。活塞杆密封装置为组合密封圈形式。组合缸体为多个时候,为水入口和水出口依次连接的串联结构形式。本一种超纯水高压泵连接超纯水机给超纯水加压时候,不会产生水流脉动,无需降噪,无气泡,不会损坏超纯水机。(A high-pressure ultrapure water pump comprises at least one combined cylinder body. Each combined cylinder body comprises a hydraulic cylinder, an empty shell and a water cylinder body. The right side of the hydraulic cylinder body is fixedly connected with the left end of the hollow shell. The middle section of the piston rod passes through the hollow shell. The right end of the piston rod penetrates into the water cylinder body, and the left end of the water cylinder body is fixedly connected with the right end of the hollow shell. The water cylinder body is provided with a water inlet and a water outlet. The left end of the water cylinder body is provided with a piston rod sealing device. The piston rod sealing device is in a combined sealing ring form. When the combined cylinder body is multiple, the combined cylinder body is in a serial structure form that a water inlet and a water outlet are sequentially connected. When the ultrapure water high-pressure pump is connected with an ultrapure water machine to pressurize ultrapure water, water flow pulsation can not be generated, noise reduction is not needed, no air bubble exists, and the ultrapure water machine can not be damaged.)

1. An ultrapure water high-pressure pump comprising at least one combined cylinder, characterized in that:

each combined cylinder body comprises a hydraulic cylinder (1), a hollow shell (4) and a water cylinder body (5);

the right side of the cylinder body of the hydraulic cylinder (1) is fixedly connected with the left end of the hollow shell (4);

the middle section of the piston rod (3) penetrates through the hollow shell (4);

the right end of the piston rod (3) penetrates into the water cylinder body (5), and the left end of the water cylinder body (5) is fixedly connected with the right end of the hollow shell (4);

the water cylinder body (5) is provided with a water inlet (7) and a water outlet (8).

2. The high-pressure pump for ultrapure water as recited in claim 1 wherein:

the left end of the water cylinder body (5) is provided with a piston rod sealing device (6).

3. The high-pressure pump for ultrapure water as recited in claim 2 wherein:

the piston rod sealing device (6) is in a combined sealing ring form.

4. The high-pressure pump for ultrapure water as recited in claim 3 wherein:

the piston rod sealing device (6) comprises a metal sealing ring (13), an elastic O-shaped ring (14) and an elastic inclined surface ring (15);

the metal sealing ring (13) is arranged on the piston rod (3),

a metal sealing ring inclined plane (16) is arranged on the right side of the outer surface of the metal sealing ring (13), and the metal sealing ring inclined plane (16) extends and inclines from the upper left to the lower right;

a metal sealing ring plane (17) is arranged on the left side of the metal sealing ring inclined plane (16), an elastic O-shaped ring (14) is sleeved on the outer side of the metal sealing ring plane (17), and the elastic O-shaped ring (14) is arranged in a metal sealing ring plane groove (19);

a corresponding elastic inclined surface ring (15) is arranged on the right side of the inclined surface (16) of the metal sealing ring, and the inclined surface of the elastic inclined surface ring (15) is arranged corresponding to the inclined surface (16) of the metal sealing ring;

the piston rod sealing device (6) is arranged in a sealing groove (18) formed in the water cylinder body (5).

5. The high-pressure pump for ultrapure water as recited in claim 1 wherein:

the combined cylinder body is in a serial structure form that a water inlet (7) and a water outlet (8) are sequentially connected when a plurality of combined cylinder bodies are used.

Technical Field

The invention belongs to the field of water pumps, and particularly relates to an ultrapure water high-pressure pump.

Background

At present, an ultrapure water machine is used for manufacturing ultrapure water, when the ultrapure water is connected with a device for pressurizing the ultrapure water after being manufactured and then is pressurized, when the pressure exceeds 40Mpa, water flow pulsation and bubbles are generated, and the ultrapure water machine can be damaged.

Disclosure of Invention

The invention aims to provide an ultrapure water high-pressure pump which is connected with an ultrapure water machine to pressurize ultrapure water without damaging the ultrapure water machine.

The technical scheme is as follows:

a high-pressure ultrapure water pump comprises at least one combined cylinder body.

The technical key points are as follows:

each combined cylinder body comprises a hydraulic cylinder, an empty shell and a water cylinder body.

The right side of the hydraulic cylinder body is fixedly connected with the left end of the hollow shell.

The middle section of the piston rod passes through the hollow shell.

The right end of the piston rod penetrates into the water cylinder body, and the left end of the water cylinder body is fixedly connected with the right end of the hollow shell.

The water cylinder body is provided with a water inlet and a water outlet.

The left end of the water cylinder body is provided with a piston rod sealing device.

The piston rod sealing device is in a combined sealing ring form.

When a plurality of combined cylinder bodies are arranged, the combined cylinder bodies are in a serial structure form that a water inlet and a water outlet are sequentially connected.

The advantages are that:

when the ultrapure water high-pressure pump is connected with an ultrapure water machine to pressurize ultrapure water, water flow pulsation can not be generated, noise reduction is not needed, no air bubble exists, and the ultrapure water machine can not be damaged.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the cooperation of the piston rod, the piston rod sealing device and the water cylinder body.

The device comprises a hydraulic cylinder 1, a piston 2, a piston rod 3, a hollow shell 4, a water cylinder body 5, a piston rod sealing device 6, a water inlet 7, a water outlet 8, a pressure sensor 9, a valve 10, an ultra-pure water machine 11, a water pump 12, a metal sealing ring 13, an elastic O-shaped ring 14, an elastic inclined ring 15, a metal sealing ring inclined plane 16, a metal sealing ring plane 17, a sealing groove 18 and a metal sealing ring plane groove 19.

Detailed Description

A high-pressure pump for ultrapure water comprises at least one combined cylinder body, each of which comprises a hydraulic cylinder 1, an empty housing 4 and a water cylinder body 5.

The piston 2 of the hydraulic cylinder 1 is arranged in the cylinder body of the hydraulic cylinder 1, and the piston rod 3 extends out of the cylinder body of the hydraulic cylinder 1.

The right side of the cylinder body of the hydraulic cylinder 1 is fixedly connected with the left end of the hollow shell 4.

The middle section of the piston rod 3 passes through the hollow shell 4.

The right end of the piston rod 3 penetrates into the water cylinder body 5, and the left end of the water cylinder body 5 is fixedly connected with the right end of the hollow shell 4.

The right end of the water cylinder body 5 is provided with a water inlet 7 and a water outlet 8.

The left end of the water cylinder body 5 is provided with a piston rod sealing device 6 which is used for being matched and sealed with the right end of the piston rod 3.

The piston rod sealing device 6 is in the form of a combined sealing ring, and one of the forms that can be adopted is: including a metal seal ring 13, an elastomeric O-ring 14, and an elastomeric beveled ring 15.

A metal seal ring 13 is provided on the piston rod 3,

the right side of the outer surface of the metal sealing ring 13 is provided with a metal sealing ring inclined plane 16, and the metal sealing ring inclined plane 16 extends and inclines from the upper left to the lower right.

The left side of the inclined surface 16 of the metal sealing ring is provided with a metal sealing ring plane 17, the outer side of the metal sealing ring plane 17 is sleeved with an elastic O-shaped ring 14, and the elastic O-shaped ring 14 is arranged in a metal sealing ring plane groove 19.

The right side of the inclined surface 16 of the metal sealing ring is provided with a corresponding elastic inclined surface ring 15, and the inclined surface of the elastic inclined surface ring 15 is arranged corresponding to the inclined surface 16 of the metal sealing ring.

The piston rod sealing device 6 is arranged in a sealing groove 18 formed in the water cylinder body 5.

The elastomeric O-ring 14 and the elastomeric beveled ring 15 may be formed of conventional elastomeric sealing materials, as well as other O-rings.

When the piston rod 3 moves leftwards or rightwards, the combined sealing rings of the piston rod sealing device 6 respectively seal water in two directions.

The outlet of the ultra-pure water machine 11 (which is a known technology) is connected with the water inlet 7 of the first water cylinder 5 in the two combined cylinders through a water pump 12, the water outlet 8 is used for discharging water, the water inlet 7 of the second water cylinder 5 is used for feeding water, the water outlet 8 is used for discharging water, a pressure sensor 9 and a valve 10 are arranged on the pipeline of the rearmost water outlet 8, and the pressure sensor 9 is positioned in front of the valve 10. (the two combined cylinders are in series).

The middle section of the piston rod 3 is positioned in the hollow shell 4, so that the oil taken out of the hydraulic cylinder 1 can be prevented from being taken into the water cylinder body 5 to pollute ultrapure water.

In FIG. 1, the double arrow indicates the direction of water flow, and the single arrow indicates the reciprocating motion of the piston rod 3 to pressurize ultrapure water.

When the pressure sensor 9 detects that the water pressure reaches 40Mpa, the PLC opens the valve 10 to discharge high-pressure water.