CN211648416U - High-pressure pneumatic double-diaphragm pump - Google Patents
High-pressure pneumatic double-diaphragm pump Download PDFInfo
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- CN211648416U CN211648416U CN202020186931.6U CN202020186931U CN211648416U CN 211648416 U CN211648416 U CN 211648416U CN 202020186931 U CN202020186931 U CN 202020186931U CN 211648416 U CN211648416 U CN 211648416U
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Abstract
The utility model discloses a pneumatic two diaphragm pumps of high pressure, including the pump body, wherein: the pump body comprises a left liquid cavity, a left gas cavity, an intermediate body, a right gas cavity and a pressurizing gas cavity which are sequentially arranged from left to right; the left liquid cavity and the left gas cavity are separated by a left diaphragm, and the edge of the left diaphragm is fixed on the intermediate body; the right liquid cavity and the pressurized gas cavity are separated by a right diaphragm, and the edge of the right diaphragm is fixed on the intermediate body; two ends of the diaphragm connecting rod are respectively inserted into the left gas cavity and the right gas cavity, the left diaphragm pressing plate is arranged at the left end of the diaphragm connecting rod, and the right diaphragm pressing plate is arranged at the right end of the diaphragm connecting rod; the left gas cavity is communicated with the pressurized gas cavity. The utility model discloses a play liquid pressure has obtained the good effect that compares out liquid pressure with traditional diaphragm pump and doubles.
Description
Technical Field
The utility model relates to a pneumatic component field especially relates to a pneumatic two diaphragm pumps of high pressure.
Background
The pneumatic diaphragm pumps in the current market alternately inflate the left and right gas cavities through the reversing valve and the main air valve, and further alternately generate pressure on the left and right liquid cavities. The ratio of the pressure of the liquid chamber to the pressure of the gas chamber is therefore theoretically 1: 1. namely: the pressure of the liquid output is theoretically equal to the pressure of the supplied gas source (typically the gas pressure output by the air compressor). The maximum output pressure of the air compressors equipped by most manufacturers on the market is about 0.8MPa, and the maximum value of the maximum liquid pressure which can be provided is also about 0.8MPa theoretically. However, in more specialized industries and applications, such as filter presses, long distance transportation, deep underground wells, and high tower water transportation, higher pressures are often required. The higher air supply pressure is also a solution direction, but the method undoubtedly needs to be provided with an air compressor with higher compression ratio, a series of devices for air supply treatment, an air pipeline and the like need to be upgraded and modified, and the maintenance cost at the later stage is also greatly increased.
Therefore the utility model provides a high-pressure pneumatic double-diaphragm pump for the pressure of liquid output improves greatly, is 2 times of input gas pressure in theory.
SUMMERY OF THE UTILITY MODEL
In order to realize the purpose of the utility model, the following technical scheme is adopted to realize:
a high pressure pneumatic double diaphragm pump comprising a pump body, wherein: the pump body comprises a left liquid cavity, a left gas cavity, an intermediate body, a right gas cavity and a pressurizing gas cavity which are sequentially arranged from left to right; the left liquid cavity and the left gas cavity are separated by a left diaphragm, and the edge of the left diaphragm is fixed on the intermediate body; the right liquid cavity and the pressurized gas cavity are separated by a right diaphragm, and the edge of the right diaphragm is fixed on the intermediate body; two ends of the diaphragm connecting rod are respectively inserted into the left gas cavity and the right gas cavity, the left diaphragm pressing plate is arranged at the left end of the diaphragm connecting rod, and the right diaphragm pressing plate is arranged at the right end of the diaphragm connecting rod; the left gas cavity is communicated with the pressurized gas cavity.
The high-pressure pneumatic double-diaphragm pump is characterized in that: the left liquid cavity is mainly composed of a left fluid cover and a left diaphragm; the pressurized gas cavity is mainly composed of a right fluid cover and a right diaphragm; the left gas cavity is composed of a left diaphragm and a left side wall of the intermediate body, the edge of the left fluid cover is fixed on the intermediate body through a plurality of bolts, and the edge of the left diaphragm is clamped between the left fluid cover and the left side wall of the intermediate body; the right gas cavity is composed of a right side wall of the middle body and a right diaphragm, the edge of the right fluid cover is fixed on the middle body through a plurality of bolts, and the edge of the right diaphragm is clamped between the right fluid cover and the right side wall of the middle body.
The high-pressure pneumatic double-diaphragm pump is characterized in that: the air valve assembly is arranged in the middle body; the air valve assembly is provided with a central hole, the diaphragm connecting rod is inserted into the central hole, two ends of the diaphragm connecting rod respectively penetrate through the mounting holes of the left side wall and the right side wall of the intermediate body and then are inserted into the left gas cavity and the right gas cavity, the center of the diaphragm connecting rod is provided with a through hole, and two ends of the through hole are provided with internal threads; the left diaphragm bolt is inserted into a center hole of the left diaphragm from left to right and is in threaded connection with the left end of the through hole of the diaphragm connecting rod, a first pressing plate and a second pressing plate are respectively arranged on the left side and the right side of the left diaphragm, and the first pressing plate and the second pressing plate are in threaded connection with the left diaphragm bolt through a threaded hole in the center of the first pressing plate and the second pressing plate and tightly press the left diaphragm; the right diaphragm bolt is inserted into a center hole of the right diaphragm from right to left and is in threaded connection with the right end of the diaphragm connecting rod through hole, a third pressing plate and a fourth pressing plate are respectively arranged on the left side and the right side of the right diaphragm, and the third pressing plate and the fourth pressing plate are in threaded connection with the right diaphragm bolt through a threaded hole in the center of the third pressing plate and tightly press the right diaphragm.
The high-pressure pneumatic double-diaphragm pump is characterized in that: the left diaphragm bolt is provided with a blind hole from the bolt head to the bolt cap part, a communicating hole is formed in the contact part of the diaphragm pressing plate and the diaphragm connecting rod of the left diaphragm bolt, the communicating hole is communicated with the blind hole and the outside of the left diaphragm bolt, the left end part of the diaphragm connecting rod is provided with an opening which is communicated with the through hole of the diaphragm connecting rod, and the communicating hole of the left diaphragm bolt is communicated with the left gas cavity through the opening at the left end of the diaphragm connecting rod and is communicated with the through hole of the diaphragm connecting rod; the center of the right diaphragm bolt is provided with a through hole, so that the left gas cavity and the pressurized gas cavity are communicated with each other.
The high-pressure pneumatic double-diaphragm pump is characterized in that: the left diaphragm and the right diaphragm are both made of elastic materials.
The high-pressure pneumatic double-diaphragm pump is characterized in that: the liquid inlet pipe is connected with the left liquid cavity through a liquid inlet arranged at the lower part of the left liquid cavity, and a first ball valve is arranged between the liquid inlet pipe and the liquid inlet; the drain pipe is connected with left liquid chamber through the liquid outlet that left liquid chamber upper portion set up, is equipped with the second ball valve between drain pipe and the liquid outlet.
The high-pressure pneumatic double-diaphragm pump is characterized in that: the pressurized gas cavity is isolated from the liquid inlet pipe and the liquid outlet pipe.
Drawings
Fig. 1 is a schematic structural view of a high-pressure pneumatic double diaphragm pump.
Detailed Description
The following describes in detail embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1, a pump body of the high-pressure pneumatic double-diaphragm pump is sequentially provided with a left fluid cover 1, a left liquid cavity 2, a left gas cavity 3, an intermediate body 18, a right gas cavity 4, a pressurized gas cavity 5 and a right fluid cover 19 from left to right; the gas valve assembly 14 is disposed in the space between the left gas chamber 3 and the right gas chamber 4. It should be noted that the air valve assembly 14 is a conventional device of a diaphragm pump, controls the left and right air cavities to circulate in and out air, and may include a main valve, a reversing valve, etc., which is not described in the present invention.
The air valve assembly 14 is positioned in the middle body 18 and automatically controls the circular inflation and the exhaust of the left and the right gas cavities, so that the left and the right diaphragm assemblies move in a reciprocating manner left and right; the left liquid cavity 2 and the left gas cavity 3 are separated by a left diaphragm 7, and the edge of the left diaphragm 7 is fixed on the middle body 18 and is pressed by the fluid cover 1; the right liquid cavity 4 and the pressurized gas cavity 5 are separated by a right diaphragm 11, and the edge of the right diaphragm 11 is fixed on the middle body 18 and is pressed by a right fluid cover 19; the left liquid chamber 2 is mainly composed of a fluid cover 1 and a left diaphragm 7; the pressurized gas chamber 5 is mainly composed of a fluid cover 19 and a right diaphragm 11; the left gas cavity 3 is composed of a left diaphragm 7 and a left side wall of a middle body 18, the edge of the fluid cover 1 is fixed on the middle body 18 through a plurality of bolts, and the edge of the left diaphragm 7 is clamped between the left side wall of the middle body 18 and the fluid cover 1; the right gas cavity 4 is composed of a middle body right side wall and a right diaphragm 11, the edge of the fluid cover 19 is fixed on the middle body 18 through a plurality of bolts, and the edge of the right diaphragm 11 is clamped between the right side wall of the middle body 18 and the fluid cover 19; valve assembly 14 is disposed within central body 18; the middle body 18 is provided with a central hole, the diaphragm connecting rod 9 is inserted into the central hole so that the middle part of the diaphragm connecting rod 9 is supported by the central hole, two ends of the diaphragm connecting rod 9 respectively penetrate through the mounting holes of the left side wall and the right side wall of the middle body 18 and then are inserted into the left gas cavity 3 and the right gas cavity 4, the center of the diaphragm connecting rod 9 is provided with a through hole, and two ends of the through hole are provided with internal threads; the left diaphragm bolt 6 is inserted into a central hole of the left diaphragm 7 from left to right and is in threaded connection with the left end of a through hole of the diaphragm connecting rod 9, a first pressing plate 21 and a second pressing plate 8 are respectively arranged on the left side and the right side of the left diaphragm 7, and the first pressing plate 21 and the second pressing plate 8 are in threaded connection with the left diaphragm bolt 6 through a threaded hole in the center of the first pressing plate and tightly press the left diaphragm 7; the right diaphragm bolt 12 is inserted into a center hole of the right diaphragm 11 from right to left and is in threaded connection with the right end of a through hole of the diaphragm connecting rod 9, a third pressing plate 10 and a fourth pressing plate 22 are respectively arranged on the left side and the right side of the right diaphragm 11, and the third pressing plate 10 and the fourth pressing plate 22 are in threaded connection with the right diaphragm bolt 12 through a threaded hole in the center of the third pressing plate 10 and the fourth pressing plate 22 and tightly press the right diaphragm 11.
The left diaphragm bolt 6 is provided with a center hole from the bolt head to the bolt cap part, the hole is a blind hole, the left diaphragm bolt 6 is provided with a communicating hole from the outer wall to the inside, the communicating hole is communicated with the outside of the left diaphragm bolt 6 and the center hole, the left end part of the diaphragm connecting rod 9 is provided with an opening which is communicated with the through hole of the diaphragm connecting rod 9, and after the left diaphragm bolt 6 is screwed into the left end of the diaphragm connecting rod 9, the communicating hole on the left diaphragm bolt 6 is communicated with the opening of the diaphragm connecting rod 9; the center of the right diaphragm bolt 12 is provided with a through hole, so that the left gas cavity 3 and the pressurized gas cavity 5 are communicated with each other.
The left diaphragm 7 and the right diaphragm 11 are both made of elastic materials (such as rubber and the like); the liquid inlet pipe 13 is connected with the left liquid cavity 2 through a liquid inlet arranged at the lower part of the left liquid cavity 2, and a first ball valve 15 is arranged between the liquid inlet pipe 13 and the liquid inlet; the liquid outlet pipe 16 is connected with the left liquid cavity 2 through a liquid outlet arranged at the upper part of the left liquid cavity, and a second ball valve 17 is arranged between the liquid outlet pipe 16 and the liquid outlet; the pressurized gas chamber 5 is isolated from the liquid inlet pipe 13 and the liquid outlet pipe 16, i.e. an upper sealing plate 23 and a lower sealing plate 24 are respectively arranged on the upper part and the lower part of the pressurized gas chamber 5 to isolate the connection between the pressurized gas chamber and the liquid inlet pipe 13 and the liquid outlet pipe 16.
The utility model discloses a working process of high-pressure pneumatic double-diaphragm pump explains as follows: the gas valve assembly 14 inflates gas to the left gas cavity 3, high-pressure gas enters the left diaphragm bolt 6 communicating hole through the vent hole on the diaphragm connecting rod 9 and then enters the pressurized gas cavity 5 through the left diaphragm bolt 6, the diaphragm connecting rod 9 and the right diaphragm bolt 12, so that the pressurized gas cavity 5 is also filled with the high-pressure gas; high-pressure gas in the left gas cavity 3 and the pressurized gas cavity 5 respectively pushes a left diaphragm 7 and a right diaphragm 11, the left diaphragm 7 and the right diaphragm 11 elastically deform leftwards to drive a diaphragm connecting rod to move leftwards, the left diaphragm 7 extrudes liquid in the left liquid cavity 2, the liquid in the left liquid cavity 2 pushes a second ball valve 17 to move upwards to open a liquid outlet, and the liquid is discharged from the liquid outlet; the air valve assembly 14 controls the circulation of the left and right gas cavities, when the right gas cavity 4 is inflated and the left gas cavity 3 and the pressurized gas cavity 5 are exhausted, the diaphragms on the two sides move rightwards along with the inflation, so that a vacuum phenomenon is caused to the liquid cavity 2, the second ball valve 17 is closed to seal a liquid outlet passage, the first ball valve 15 is opened to suck in new liquid, and the operation is repeated.
The utility model discloses owing to increased pressure boost gas chamber 5 for liquid in the left side liquid chamber 2 receives the pressure that is two times as much as air supply pressure, consequently goes out liquid pressure and has increased one time, under the condition that does not increase air supply pressure, has obtained the good effect that compares liquid pressure with traditional diaphragm pump and doubles.
Claims (7)
1. The utility model provides a pneumatic two diaphragm pumps of high pressure, includes the pump body, its characterized in that: the pump body comprises a left liquid cavity, a left gas cavity, an intermediate body, a right gas cavity and a pressurizing gas cavity which are sequentially arranged from left to right; the left liquid cavity and the left gas cavity are separated by a left diaphragm, and the edge of the left diaphragm is fixed on the intermediate body; the right liquid cavity and the pressurized gas cavity are separated by a right diaphragm, and the edge of the right diaphragm is fixed on the intermediate body; two ends of the diaphragm connecting rod are respectively inserted into the left gas cavity and the right gas cavity, the left diaphragm pressing plate is arranged at the left end of the diaphragm connecting rod, and the right diaphragm pressing plate is arranged at the right end of the diaphragm connecting rod; the left gas cavity is communicated with the pressurized gas cavity.
2. A high-pressure pneumatic double diaphragm pump according to claim 1, wherein: the left liquid cavity is mainly composed of a left fluid cover and a left diaphragm; the pressurized gas cavity is mainly composed of a right fluid cover and a right diaphragm; the left gas cavity is composed of a left diaphragm and a left side wall of the intermediate body, the edge of the left fluid cover is fixed on the intermediate body through a plurality of bolts, and the edge of the left diaphragm is clamped between the left fluid cover and the left side wall of the intermediate body; the right gas cavity is composed of a right side wall of the middle body and a right diaphragm, the edge of the right fluid cover is fixed on the middle body through a plurality of bolts, and the edge of the right diaphragm is clamped between the right fluid cover and the right side wall of the middle body.
3. A high-pressure pneumatic double diaphragm pump according to claim 1, wherein: the air valve assembly is arranged in the middle body; the air valve assembly is provided with a central hole, the diaphragm connecting rod is inserted into the central hole, two ends of the diaphragm connecting rod respectively penetrate through the mounting holes of the left side wall and the right side wall of the intermediate body and then are inserted into the left gas cavity and the right gas cavity, the center of the diaphragm connecting rod is provided with a through hole, and two ends of the through hole are provided with internal threads; the left diaphragm bolt is inserted into a center hole of the left diaphragm from left to right and is in threaded connection with the left end of the through hole of the diaphragm connecting rod, a first pressing plate and a second pressing plate are respectively arranged on the left side and the right side of the left diaphragm, and the first pressing plate and the second pressing plate are in threaded connection with the left diaphragm bolt through a threaded hole in the center of the first pressing plate and the second pressing plate and tightly press the left diaphragm; the right diaphragm bolt is inserted into a center hole of the right diaphragm from right to left and is in threaded connection with the right end of the diaphragm connecting rod through hole, a third pressing plate and a fourth pressing plate are respectively arranged on the left side and the right side of the right diaphragm, and the third pressing plate and the fourth pressing plate are in threaded connection with the right diaphragm bolt through a threaded hole in the center of the third pressing plate and tightly press the right diaphragm.
4. A high-pressure pneumatic double diaphragm pump according to claim 3, wherein: the left diaphragm bolt is provided with a blind hole from the bolt head to the bolt cap part, a communicating hole is formed in the contact part of the diaphragm pressing plate and the diaphragm connecting rod of the left diaphragm bolt, the communicating hole is communicated with the blind hole and the outside of the left diaphragm bolt, the left end part of the diaphragm connecting rod is provided with an opening which is communicated with the through hole of the diaphragm connecting rod, and the communicating hole of the left diaphragm bolt is communicated with the left gas cavity through the opening at the left end of the diaphragm connecting rod and is communicated with the through hole of the diaphragm connecting rod; the center of the right diaphragm bolt is provided with a through hole, so that the left gas cavity and the pressurized gas cavity are communicated with each other.
5. A high-pressure pneumatic double diaphragm pump according to claim 1, wherein: the left diaphragm and the right diaphragm are both made of elastic materials.
6. A high-pressure pneumatic double diaphragm pump according to claim 1, wherein: the liquid inlet pipe is connected with the left liquid cavity through a liquid inlet arranged at the lower part of the left liquid cavity, and a first ball valve is arranged between the liquid inlet pipe and the liquid inlet; the drain pipe is connected with left liquid chamber through the liquid outlet that left liquid chamber upper portion set up, is equipped with the second ball valve between drain pipe and the liquid outlet.
7. A high-pressure pneumatic double diaphragm pump according to claim 6, wherein: the pressurized gas cavity is isolated from the liquid inlet pipe and the liquid outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020186931.6U CN211648416U (en) | 2020-02-20 | 2020-02-20 | High-pressure pneumatic double-diaphragm pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020186931.6U CN211648416U (en) | 2020-02-20 | 2020-02-20 | High-pressure pneumatic double-diaphragm pump |
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| Publication Number | Publication Date |
|---|---|
| CN211648416U true CN211648416U (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020186931.6U Active CN211648416U (en) | 2020-02-20 | 2020-02-20 | High-pressure pneumatic double-diaphragm pump |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228323A (en) * | 2020-10-20 | 2021-01-15 | 温州健宇轻工机械有限公司 | Pneumatic diaphragm pump |
| CN114412761A (en) * | 2022-01-27 | 2022-04-29 | 广州派莎克流体设备技术有限公司 | Energy-saving high-pressure pneumatic diaphragm pump |
| CN114922801A (en) * | 2022-04-27 | 2022-08-19 | 上海侠飞泵业有限公司 | High-pressure pneumatic diaphragm pump |
-
2020
- 2020-02-20 CN CN202020186931.6U patent/CN211648416U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228323A (en) * | 2020-10-20 | 2021-01-15 | 温州健宇轻工机械有限公司 | Pneumatic diaphragm pump |
| CN114412761A (en) * | 2022-01-27 | 2022-04-29 | 广州派莎克流体设备技术有限公司 | Energy-saving high-pressure pneumatic diaphragm pump |
| CN114922801A (en) * | 2022-04-27 | 2022-08-19 | 上海侠飞泵业有限公司 | High-pressure pneumatic diaphragm pump |
| CN114922801B (en) * | 2022-04-27 | 2023-11-28 | 上海侠飞泵业有限公司 | High-pressure pneumatic diaphragm pump |
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