CN215634023U - Double-piston differential pressure accumulator - Google Patents
Double-piston differential pressure accumulator Download PDFInfo
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- CN215634023U CN215634023U CN202120528079.0U CN202120528079U CN215634023U CN 215634023 U CN215634023 U CN 215634023U CN 202120528079 U CN202120528079 U CN 202120528079U CN 215634023 U CN215634023 U CN 215634023U
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Abstract
The utility model discloses a double-piston differential pressure energy accumulator which comprises a piston cylinder, wherein a front cylinder cover and a rear cylinder cover are fixedly arranged at two ends of the piston cylinder respectively, two pistons, namely a first piston and a second piston, are arranged in the piston cylinder, a piston rod is connected between the first piston and the second piston, a spring is connected between the first piston and the front cylinder cover, a medium interface is arranged on the front cylinder cover, a sealing buffer liquid interface is arranged on the rear cylinder cover, a drain outlet and a pressure gauge interface are arranged between the two pistons of the piston cylinder, and the pressure gauge interface is connected with a pressure gauge through a pipeline. The piston type energy accumulator solves the problems of oil and gas leakage of the existing piston type energy accumulator, can display and monitor the leakage condition of the piston at any time through the pressure gauge, and judges which side of the piston leaks through the blowoff valve, so that the energy accumulator works reliably, the service life of the energy accumulator is prolonged, and the accident potential safety hazard is reduced.
Description
Technical Field
The utility model relates to the technical field of chemical equipment, in particular to a double-piston differential pressure accumulator.
Background
In the mechanical seal flushing scheme PLAN53C of the mechanical pump, a pressurized sealing buffer solution is attached to a piston type accumulator, one side of a piston of the piston type accumulator is a pump medium, and the other side of the piston is the sealing buffer solution.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides a double-piston differential pressure accumulator.
In order to achieve the purpose, the technical scheme of the utility model is as follows: a dual piston differential pressure accumulator, comprising: the piston cylinder is characterized by comprising a piston cylinder, wherein a front cylinder cover and a rear cylinder cover are fixedly arranged at two ends of the piston cylinder respectively, two pistons are arranged in the piston cylinder and are respectively a first piston and a second piston, a piston rod is connected between the first piston and the second piston, a spring is connected between the first piston and the front cylinder cover, the front cylinder cover is provided with a medium interface, the rear cylinder cover is provided with a sealing buffer liquid interface, the piston cylinder is provided with a drain outlet and a pressure gauge interface between the two pistons, and the pressure gauge interface is connected with a pressure gauge through a pipeline.
Further, the method comprises the following steps of; and a piston dead point is arranged between the first piston and the front cylinder cover of the piston cylinder.
Further, the method comprises the following steps of; and the outer walls of the first piston and the second piston are respectively provided with a sealing ring which is in close contact with the inner wall of the piston cylinder.
The utility model has the beneficial effects that: the piston type energy accumulator solves the problems of oil and gas leakage of the existing piston type energy accumulator, can display and monitor the leakage condition of the piston at any time through the pressure gauge, and judges which side of the piston leaks through the blowoff valve, so that the energy accumulator works reliably, the service life of the energy accumulator is prolonged, and the accident potential safety hazard is reduced.
Drawings
FIG. 1 is a schematic diagram of the present invention.
In the figure: 1. a piston cylinder; 2. a front cylinder cover; 3. a rear cylinder cover; 4. a spring; 5. a piston rod; 6. a first piston; 7. a second piston; 8. a media interface; 9. sealing the buffer interface; 10. a sewage draining outlet; 11. a pressure gauge; 12. a piston stop point; 13. and (5) sealing rings.
Detailed Description
Example (b):
as shown in fig. 1, a double-piston differential pressure energy accumulator, includes piston cylinder 1, 1 both ends of piston cylinder are fixed respectively and are equipped with preceding cylinder cap 2 and back cylinder cap 3, be equipped with two pistons in the piston cylinder 1, be first piston 6 and second piston 7 respectively, connect piston rod 5 between first piston 6 and the second piston 7, be connected with spring 4 between first piston 6 and the preceding cylinder cap 2, piston cylinder 1 is equipped with piston dead point 12 between first piston 6 and preceding cylinder cap 2, preceding cylinder cap 2 is equipped with medium interface 8, back cylinder cap 3 is equipped with sealed buffer solution interface 9, piston cylinder 1 is equipped with drain 10 and manometer interface between two pistons, the manometer interface passes through pipe connection manometer 11.
And the outer walls of the first piston 6 and the second piston 7 are respectively provided with a sealing ring 13 which is in close contact with the inner wall of the piston cylinder 1.
The working principle is as follows: firstly, a sealing buffer solution is filled into a sealing buffer solution cavity formed between the second piston 7 and the rear cylinder cover 3 through a sealing buffer solution interface 9, and the sealing buffer solution is pressurized to a set value of the spring 4, so that the first piston 6 moves to a piston dead point 12 leftwards, the spring 4 is compressed, and at the moment, the double-piston differential pressure accumulator can be put into use; the medium enters a medium chamber formed between the first piston 6 and the front cylinder cover 2 through a medium interface 8, and when the medium pressure P1 rises, the two pistons are pushed to move towards the rear cylinder cover 3 under the action of the medium pressure P1 and the spring force P; on the contrary, when the medium pressure P1 is reduced, the two pistons are pushed to move towards the front cylinder head 2 under the action of the sealing buffer liquid pressure P2, and a certain pressure difference exists between the medium pressure P1 and the sealing buffer liquid pressure P2.
In the use process, because the chamber between the two pistons can be communicated with the atmosphere, the pressure P0 of the chamber between the two pistons is normal pressure, if one side piston is sealed and leaked, the pressure P0 rises, the blow-off valve of the blow-off port 10 is opened, which side piston is sealed and leaked can be judged through the discharged substances, and the mixed pollution of the medium and the sealing buffer solution can be completely avoided.
The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to be limiting in any way, and other variations and modifications are possible without departing from the scope of the utility model as set forth in the appended claims.
In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Claims (3)
1. A dual piston differential pressure accumulator, comprising: the piston cylinder is characterized by comprising a piston cylinder, wherein a front cylinder cover and a rear cylinder cover are fixedly arranged at two ends of the piston cylinder respectively, two pistons are arranged in the piston cylinder and are respectively a first piston and a second piston, a piston rod is connected between the first piston and the second piston, a spring is connected between the first piston and the front cylinder cover, the front cylinder cover is provided with a medium interface, the rear cylinder cover is provided with a sealing buffer liquid interface, the piston cylinder is provided with a drain outlet and a pressure gauge interface between the two pistons, and the pressure gauge interface is connected with a pressure gauge through a pipeline.
2. The dual differential piston pressure accumulator of claim 1, wherein: and a piston dead point is arranged between the first piston and the front cylinder cover of the piston cylinder.
3. The dual differential piston pressure accumulator of claim 1, wherein: and the outer walls of the first piston and the second piston are respectively provided with a sealing ring which is in close contact with the inner wall of the piston cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120528079.0U CN215634023U (en) | 2021-03-12 | 2021-03-12 | Double-piston differential pressure accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120528079.0U CN215634023U (en) | 2021-03-12 | 2021-03-12 | Double-piston differential pressure accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215634023U true CN215634023U (en) | 2022-01-25 |
Family
ID=79913344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120528079.0U Active CN215634023U (en) | 2021-03-12 | 2021-03-12 | Double-piston differential pressure accumulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215634023U (en) |
-
2021
- 2021-03-12 CN CN202120528079.0U patent/CN215634023U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shandong Guoneng Petrochemical Import and Export Co.,Ltd. Assignor: LIHUA YILIJIN REFINERY Co.,Ltd. Contract record no.: X2022980025690 Denomination of utility model: Double piston differential pressure accumulator Granted publication date: 20220125 License type: Common License Record date: 20221212 |