CN2632339Y - Piston vacuum direct-pressure double-diaphragm liquid high-pressure pumps - Google Patents
Piston vacuum direct-pressure double-diaphragm liquid high-pressure pumps Download PDFInfo
- Publication number
- CN2632339Y CN2632339Y CN 03268408 CN03268408U CN2632339Y CN 2632339 Y CN2632339 Y CN 2632339Y CN 03268408 CN03268408 CN 03268408 CN 03268408 U CN03268408 U CN 03268408U CN 2632339 Y CN2632339 Y CN 2632339Y
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- liquid
- pressure
- piston
- diaphragm
- high pressure
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Abstract
The utility model pertains to the field of a water pump and relates to a piston vacuum straight-injection type double diaphragm liquid high-pressure pump, which comprise a pump body, an eccentric shaft, a piston, a sealing ring, a connecting rod, a liquid cavity, a liquid suction check valve and a liquid discharging check valve, and is characterized in that top end of the pump body is provided with a high-pressure air chamber, and a high-pressure liquid cavity is provided under the high-pressure air chamber. A low-pressure liquid cavity is provided under the high-pressure liquid cavity. The liquid discharging check valve is connected between the high-pressure liquid cavity and the low-pressure liquid cavity. A liquid air diaphragm is provided between the high-pressure liquid cavity and the high-pressure air chamber. An oil liquid diaphragm is provided inside the low-pressure liquid cavity. The oil liquid diaphragm and the liquid air diaphragm are fixed and sealed by screws, and the problem of the fluctuation of the liquid pressure after the mixture of the oil, liquid and air is thoroughly solved. The utility model has the advantages of reasonable designing, simple structure, convenient maintenance, and long service life, and can be widely applied in the different fields of fine chemical industry, medicine, agricultural high-pressure water delivery, chemical spraying and car washing etc.
Description
Technical field
The utility model belongs to the water pump field, the two barrier film liquid high pressure pumps of specifically a kind of piston vacuum direct press type.
Background technique
The high-pressure service pump of traditional approach, comprise that the pump housing, eccentric shaft, piston, seal ring, connecting rod, liquid suck one-way valve, liquid is discharged one-way valve, it is to utilize the eccentric shaft drivening rod, promotion piston output liquid, Sealing is installed on the piston to be produced vacuum and isolates fluid with piston motion, because to-and-fro motion produces friction, Sealing is easy to experience wear and is ineffective, so the high pressure of piston vertical compression system just is not in full use always, and its generation friction in constantly moving again, friction back piston Sealing is easy to make fluid to produce mixing.And existing high-pressure service pump pressure when output liquid descends, and is easy to occur the fluid pressure fluctuation, makes instability of flow, do not guarantee that water pump works continuously stably.
Summary of the invention
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, a kind of reasonable idea, simple in structure, easy to maintenance, long service life is provided, can thoroughly solves the two barrier film liquid high pressure pumps of piston vacuum direct press type of the mixed mutually fluid pressure fluctuation of oil, liquid, gas.
The technological scheme that its technical problem that solves the utility model adopts is: the two barrier film liquid high pressure pumps of a kind of piston vacuum direct press type, comprise the pump housing, eccentric shaft, piston, seal ring, connecting rod, liquid container, liquid sucks one-way valve, liquid is discharged one-way valve, piston rotates by eccentric shaft and moves up and down, liquid container one side is provided with liquid and sucks one-way valve, the top is provided with liquid and discharges one-way valve, it is characterized in that pump housing top is provided with the high-pressure air chamber, be provided with the high pressure liquid body cavity below the high-pressure air chamber, the high pressure liquid body cavity has the low pressure liquid chamber, be connected with liquid between low pressure liquid chamber and the high pressure liquid body cavity and discharge one-way valve, be provided with liquid air bound film between high-pressure air chamber and the high pressure liquid body cavity, be provided with the fluid barrier film in the low pressure liquid chamber.
The two barrier film liquid high pressure pumps of the utility model piston vacuum direct press type, its fluid barrier film is identical with the diameter of bottom, low pressure liquid chamber, and uses the screw fixing seal, and liquid air bound film is identical with the diameter of bottom, high-pressure air chamber, and uses the screw fixing seal.Because the fluid barrier film thoroughly separates the low pressure liquid chamber with the pistons work chamber, so just can not cause fluid to mix because of the piston seal long term wear.Can not cause the problem of revealing lubricant oil from piston seal because of pressure is excessive yet, thereby improve the lubricated environment of piston and other parts, increase working life.Liquid air bound film thoroughly separates the high pressure liquid body cavity with the high-pressure air chamber, when piston stroking upward, promote the fluid barrier film, the plastically deformable that the fluid barrier film is produced recovers original form, and liquid is discharged one-way valve by liquid and entered the high pressure liquid body cavity, when entering the high pressure liquid body cavity, the pressure of high pressure liquid body cavity increases suddenly, part liquid makes liquid air bound film overcome the gas pressure of high-pressure air chamber, makes liquid air bound film produce plastically deformable, has increased the volume of high pressure liquid body cavity; When descent of piston, the fluid pressure of the high pressure liquid body cavity of proper functioning descends rapidly, at this moment in time promoting liquid air bound film under the pressure effect of the pressurized gas of high pressure gas chamber recovers, replenish the pressure surge that forms by descent of piston, can guarantee effectively that output liquid pressure is stable, thereby make pump working continual and steady.
The utility model is owing to adopt above-mentioned technology, utilizes fixedly the fluid barrier film to be close to the little stroke acting of piston and realized the unlimited raising of high pressure, and stopped the problem that fluid mixes mutually, utilizes the compressible principle of air to solve the problem that fluid pressure fluctuates.Its reasonable idea, simple in structure, easy to maintenance, long service life.Can be widely used in different field such as fine chemistry industry, medicine, agriculture high force feed water, spray medicine, carwash.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
1. eccentric shafts among the figure, 2. connecting rod, 3. piston, 4. seal ring, 5. fluid barrier film, 6. liquid sucks one-way valve, and 7. liquid is discharged one-way valve, 8. pressure-limit valve, 9. liquid air bound film, 10. high-pressure air chamber, 15. high pressure liquid body cavitys, 16. low pressure liquid chambeies.
Embodiment
As can be seen from Figure 1, the two barrier film liquid high pressure pumps of a kind of piston vacuum of the utility model direct press type, it is provided with, and the pump housing, eccentric shaft 1, piston 3, seal ring 4, connecting rod 2, high pressure liquid body cavity 15, low pressure liquid chamber 16, high-pressure air make 10, liquid sucks one-way valve 6, liquid is discharged one-way valve 7.After connecting power supply, when eccentric shaft 1 drivening rod 2, piston 3 and seal ring 4 are descending, under the seal action of fluid barrier film 5, produce vacuum, make fluid barrier film 5 produce plastically deformable, the volume in low pressure liquid chamber 16 just increases along with the descending of piston, and low pressure liquid sucks one-way valve 6 by liquid and sucks low pressure liquid chamber 16; When piston 3 is up, promote fluid barrier film 5, the plastically deformable that fluid barrier film 5 is produced recovers original form, liquid is discharged one-way valve 7 by liquid and is entered high pressure liquid body cavity 15, when entering high pressure liquid body cavity 15, the pressure of high pressure liquid body cavity 15 increases suddenly, and a part of liquid makes liquid air bound film 9 overcome the gas pressure of high-pressure air chamber 10, make liquid air bound film 9 produce plastically deformable, increased the volume of high pressure liquid body cavity 15; When piston 3 was descending, the fluid pressure of the high pressure liquid body cavity 15 of proper functioning descended rapidly, at this moment under the pressure effect of the pressurized gas of high pressure gas chamber 10, in time promoted liquid air bound film 9 and recovered, and replenished descending by piston 3 and pressure surge that form.Because fluid barrier film 5 has sealed low pressure liquid chamber 16, the piston machine positive drive type promotes liquid output, thereby by adjusting the pressure of pressure-limit valve 8, just can obtain the highly pressurised liquid delivery pressure arbitrarily.When adjusting delivery pressure, must adjust the gas pressure of heavy pressure gas chamber 15, guarantee the normal storage of liquid and the separation of supply and liquid and pressurized gas.Fluid barrier film 5, liquid air bound film 9 can also separate liquid and lubricant oil, liquids and gases except that finishing suction and drain effect completely, and they are independent of each other, and reach thorough solution oil, liquid, the mixed mutually problem of gas.
Claims (3)
1, the two barrier film liquid high pressure pumps of a kind of piston vacuum direct press type, comprise the pump housing, eccentric shaft, piston, seal ring, connecting rod, liquid container, liquid sucks one-way valve, liquid is discharged one-way valve, piston rotates by eccentric shaft and moves up and down, liquid container one side is provided with liquid and sucks one-way valve, the top is provided with liquid and discharges one-way valve, it is characterized in that pump housing top is provided with the high-pressure air chamber, be provided with the high pressure liquid body cavity below the high-pressure air chamber, be provided with the low pressure liquid chamber below the high pressure liquid body cavity, be connected with liquid between low pressure liquid chamber and the high pressure liquid body cavity and discharge one-way valve, be provided with liquid air bound film between high-pressure air chamber and the high pressure liquid body cavity, be provided with the fluid barrier film in the low pressure liquid chamber.
2, the two barrier film liquid high pressure pumps of piston vacuum direct press type according to claim 1 is characterized in that said fluid barrier film is identical with the diameter of bottom, low pressure liquid chamber, and use the screw fixing seal.
3, the two barrier film liquid high pressure pumps of piston vacuum direct press type according to claim 1 is characterized in that said liquid air bound film is identical with the diameter of bottom, high-pressure air chamber, and use the screw fixing seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03268408 CN2632339Y (en) | 2003-06-18 | 2003-06-18 | Piston vacuum direct-pressure double-diaphragm liquid high-pressure pumps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03268408 CN2632339Y (en) | 2003-06-18 | 2003-06-18 | Piston vacuum direct-pressure double-diaphragm liquid high-pressure pumps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2632339Y true CN2632339Y (en) | 2004-08-11 |
Family
ID=34299383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03268408 Expired - Fee Related CN2632339Y (en) | 2003-06-18 | 2003-06-18 | Piston vacuum direct-pressure double-diaphragm liquid high-pressure pumps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2632339Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107597001A (en) * | 2017-10-11 | 2018-01-19 | 广州纯水健康科技有限公司 | A kind of high-pressure water gas mixing arrangement, mixed method and its application in the form of piston |
-
2003
- 2003-06-18 CN CN 03268408 patent/CN2632339Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107597001A (en) * | 2017-10-11 | 2018-01-19 | 广州纯水健康科技有限公司 | A kind of high-pressure water gas mixing arrangement, mixed method and its application in the form of piston |
| CN107597001B (en) * | 2017-10-11 | 2024-03-22 | 广州纯水健康科技有限公司 | Piston type high-pressure water-gas mixing device, mixing method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |