CN220452138U - Double-acting circulating pump - Google Patents
Double-acting circulating pump Download PDFInfo
- Publication number
- CN220452138U CN220452138U CN202322080887.7U CN202322080887U CN220452138U CN 220452138 U CN220452138 U CN 220452138U CN 202322080887 U CN202322080887 U CN 202322080887U CN 220452138 U CN220452138 U CN 220452138U
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- 239000007788 liquid Substances 0.000 claims abstract description 72
- 230000006835 compression Effects 0.000 claims abstract description 32
- 238000007906 compression Methods 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000002608 ionic liquid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to the technical field of circulating liquid seal compressors, in particular to a double-acting circulating pump. Including the pump body, pump body inner chamber is equipped with the transmission shaft, the transmission shaft is connected with drive arrangement, install a plurality of eccentric wheel on the transmission shaft, the outside installation bearing of eccentric wheel, the position that corresponds every bearing in the pump body is equipped with a plurality of piston respectively, the inner and the bearing contact of piston, the outer end slidable mounting of piston is in the cavity of piston sleeve, piston sleeve and pump body fixed connection, the cavity outside of piston sleeve is equipped with the end cap, be equipped with the spring between the outer end of piston and the end cap, be equipped with guiding belt and gray circle between piston and the piston sleeve and lead and seal, the piston separates the cavity into circulation liquid compression chamber A and circulation liquid compression chamber B. The piston structure has high sealing grade, can enable high-pressure circulating fluid to continuously circulate in the annular cavity of the circulating liquid seal compressor, integrates a plurality of piston structures into a whole, has high integration degree, and can meet the requirement of a multistage cylinder in the circulating liquid seal compressor.
Description
Technical field:
the utility model relates to the technical field of circulating liquid seal compressors, in particular to a double-acting circulating pump.
The background technology is as follows:
the circulating liquid seal compressor drives a piston in a cylinder body of the cylinder to reciprocate mainly through a driving mechanism so as to realize supercharging of gas. As in the patent application publication No. CN114439728A, a circulating liquid seal compressor is disclosed, which is configured to store a circulating liquid by providing an annular chamber between a piston and a cylinder block, to achieve lubrication, cooling and sealing by the circulating liquid, and to keep the circulating liquid continuously circulating by providing a circulating pump in a circulating liquid circuit. The pressure of the circulating fluid in the annular cavity is required to be larger than the pressure of the compressed gas so as to avoid outward leakage of the gas through the circulating fluid, the pressure of the compressed gas is generally 45-50MPa, so that the pressure of the circulating pump is higher, most of the conventional circulating pumps are generally 10-30MPa due to sealing and other problems, the pressure of the circulating fluid cannot meet the pressure requirement of the circulating fluid, but the plunger pump can reach the pressure parameter of more than 45-50MPa, but the conventional plunger pump is generally only provided with a single circulating cavity and can only circulate the circulating fluid of one cylinder, and the circulating fluid seal compressor is generally provided with multi-stage cylinders, so that the cost is greatly increased if each stage of cylinders is provided with a single circulating pump. Therefore, the existing circulating pump cannot meet the requirements of pressure parameters and multi-stage cylinders in the circulating liquid seal compressor.
In summary, the problem of the circulating pump in the circulating liquid seal compressor has become a technical problem to be solved in the industry.
The utility model comprises the following steps:
the utility model provides a double-acting circulating pump for overcoming the defects of the prior art, solves the problem that the prior circulating pump cannot meet the higher pressure parameter of circulating liquid, and solves the problem that the prior circulating pump cannot meet the requirement of a multistage cylinder in a circulating liquid seal compressor.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a double-acting circulating pump, includes the pump body, the pump body inner chamber is equipped with the transmission shaft, install the oil seal respectively at the pump body both ends, be equipped with the oil blanket in the oil seal, the one end of transmission shaft wears out oil seal and oil blanket and is connected with drive arrangement, install a plurality of eccentric wheel on the transmission shaft, the outside installation bearing of eccentric wheel, the position that corresponds every bearing in the pump body is equipped with a plurality of piston respectively, the inner and the bearing contact of piston, the outer end slidable mounting of piston is in the cavity of piston sleeve, piston sleeve and pump body fixed connection, the cavity outside of piston sleeve is equipped with the end cap, be equipped with the spring between the outer end of piston and the end cap, be equipped with guiding band and gray circle between piston and the piston sleeve and lead and seal, the piston separates the cavity into circulating fluid compression chamber A and circulating fluid compression chamber B, circulating fluid compression chamber A communicates with inlet A and outlet A on the piston sleeve, circulating fluid compression chamber B communicates with inlet B and outlet B on the piston sleeve.
The driving device comprises a motor, and an output shaft of the motor is connected with the transmission shaft through a coupler.
The motor adopts an explosion-proof motor.
And a bearing cover is arranged on the outer side of the bearing.
The piston sleeve is connected with the pump body through bolts and is provided with a sealing ring for sealing.
And a guide belt and a plug seal are arranged between the pump body and the piston, and the plug seal is installed and fixed through a cover plate and a screw.
The oil seal cover is connected with the pump body through bolts and is provided with a sealing ring for sealing.
The number of the eccentric wheels is two, and each eccentric wheel corresponds to two pistons.
The utility model adopts the scheme and has the following advantages:
the piston is driven to reciprocate by the eccentric wheel and the bearing on the transmission shaft, so that high-pressure circulating liquid can continuously circulate in the annular cavity of the circulating liquid seal compressor, the sealing grade of the piston structure is high, the pressure parameter of more than 45-50MPa can be reached, and the circulating liquid pressure is higher than the gas pressure, so that the sealing effect on gas is realized; meanwhile, the piston structures are integrated into a whole, the integration degree is high, the occupied space is small, the cost is reduced, the eccentric wheel and the bearing can simultaneously drive the piston structures to work alternately, and the requirement of a multistage cylinder in the circulating liquid seal compressor can be met.
Description of the drawings:
fig. 1 is a schematic structural view of the present utility model.
FIG. 2 is a schematic view of the cross-sectional structure A-A of FIG. 1.
FIG. 3 is a schematic view of the cross-sectional structure of B-B in FIG. 1.
In the figure, 1, a pump body, 2, a transmission shaft, 3, an oil seal cover, 4, an oil seal, 5, an eccentric wheel, 6, a bearing, 7, a piston, 8, a piston sleeve, 9, a plug, 10, a spring, 11, a guide belt, 12, a Gelai circle, 13, a circulating liquid compression cavity A,14, a circulating liquid compression cavity B,15, a liquid inlet A,16, a liquid outlet A,17, a liquid inlet B,18, a liquid outlet B,19, a bearing housing, 20, a general plug seal, 21 and a cover plate.
The specific embodiment is as follows:
in order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings.
As shown in figures 1-3, a double-acting circulating pump comprises a pump body 1, a transmission shaft 2 is arranged in an inner cavity of the pump body 1, oil seal covers 3 are respectively arranged at two ends of the pump body 1, an oil seal 4 is arranged in the oil seal covers 3, one end of the transmission shaft 2 penetrates out of the oil seal covers 3 and the oil seal 4 to be connected with a driving device, a plurality of eccentric wheels 5 are arranged on the transmission shaft 2, bearings 6 are arranged on the outer sides of the eccentric wheels 5, a plurality of pistons 7 are respectively arranged at positions corresponding to each bearing 6 in the pump body 1, the inner ends of the pistons 7 are in contact with the bearings 6, the outer ends of the pistons 7 are slidably arranged in cavities of piston sleeves 8, the piston sleeves 8 are fixedly connected with the pump body 1, plugs 9 are arranged on the outer sides of the cavities of the piston sleeves 8, springs 10 are arranged between the outer ends of the pistons 7 and the plugs 9, the springs 10 can enable the pistons 7 to be not separated from the bearings 6 when the eccentric wheels 5 return stroke, guide belts 11 and check rings 12 are arranged between the pistons 7, the guide belts 11 and the check rings 12 are arranged on the outer surfaces of the pistons 7, the check rings 12 can meet the requirements of high-pressure sealing sleeves 7, the inner ends of the pistons 7 are in the circulation liquid 13A and the compression liquid 13B, the compression liquid 13B are communicated with the compression liquid outlet openings 13B, and the compression liquid 13B are communicated with the compression liquid circulation liquid 13B, and the compression liquid 13B is communicated with the compression liquid 13, and the compression liquid 13, and the liquid inlets 13B are communicated with the compression liquid 13. Circulating liquid can enter the circulating liquid compression cavity A13 from the liquid inlet A15 and can be pumped out from the liquid outlet A16; the circulating liquid can also enter the circulating liquid compression cavity B14 from the liquid inlet B17 and be pumped out from the liquid outlet B18.
The driving device comprises a motor, and an output shaft of the motor is connected with the transmission shaft through a coupler.
The motor adopts an explosion-proof motor.
The bearing 6 is provided with a bearing cover 19 on the outer side for strengthening the stress of the bearing 6.
The piston sleeve 8 is connected with the pump body 1 through bolts and is provided with a sealing ring for sealing.
The guide belt 11 and the plug seal 20 are arranged between the pump body 1 and the piston 7, the guide belt 11 and the plug seal 20 are arranged in the pump body 1, the plug seal 20 is fixedly arranged through the cover plate 21 and the screws, and the circulating liquid can be completely sealed in the cavity of the piston sleeve 8 through the arrangement of the plug seal 20.
The oil seal cover 3 is connected with the pump body 1 through bolts and is provided with a sealing ring for sealing.
The number of the eccentric wheels 5 is two, each eccentric wheel 5 corresponds to two pistons 7, and four pistons can be integrated into a multi-stage structure form, so that the use requirement of a multi-stage cylinder in the circulating liquid seal compressor is met, and the flow requirement can be met by changing the diameter of each piston.
The circulating liquid entering the cavity of the piston sleeve 8 comprises lubricating oil, water or ionic liquid and other liquids. Preferably, the ionic liquid is adopted in the method, and has the advantages of no pollution, easy separation from products, easy recovery and repeated recycling, and even if leakage occurs, the ionic liquid cannot pollute the gas.
Working principle:
the liquid inlet and the liquid outlet of the circulating liquid seal compressor are respectively connected with a circulating liquid pipeline of an annular cavity in the circulating liquid seal compressor, when the circulating liquid seal compressor works, a motor drives a transmission shaft 2 to rotate through a coupler, a piston 7 reciprocates in a piston sleeve 8 under the action of an eccentric wheel 5 and a spring 10, and when a circulating liquid compression cavity A13 is in a compression final process, a circulating liquid compression cavity B14 finishes a circulating liquid suction process; when the circulating liquid compression cavity B14 enters the circulating liquid compression end process, the circulating liquid compression cavity A13 completes the circulating liquid suction process, and the piston 7 continuously compresses the circulating liquid in the whole reciprocating motion process of the circulating liquid compression cavity A13 and the circulating liquid compression cavity B14, so that the high-pressure circulating liquid can be continuously circulated in the annular cavity of the circulating liquid seal compressor through the reciprocating motion.
The above embodiments are not to be taken as limiting the scope of the utility model, and any alternatives or modifications to the embodiments of the utility model will be apparent to those skilled in the art and fall within the scope of the utility model.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Claims (8)
1. A double-acting circulation pump, characterized in that: the novel circulating fluid compression pump comprises a pump body, wherein a transmission shaft is arranged in an inner cavity of the pump body, oil sealing covers are respectively arranged at two ends of the pump body, an oil seal is arranged in the oil sealing covers, one end of the transmission shaft penetrates out of the oil sealing covers and is connected with a driving device, a plurality of eccentric wheels are arranged on the transmission shaft, bearings are arranged on the outer sides of the eccentric wheels, a plurality of pistons are respectively arranged at positions corresponding to the bearings in the pump body, the inner ends of the pistons are in contact with the bearings, the outer ends of the pistons are slidably arranged in cavities of piston sleeves, the piston sleeves are fixedly connected with the pump body, plugs are arranged on the outer sides of the cavities of the piston sleeves, springs are arranged between the outer ends of the pistons and the plugs, guide belts and the Gelai rings are arranged between the pistons and the piston sleeves to guide and seal the pistons, the cavities are divided into a circulating fluid compression cavity A and a circulating fluid compression cavity B, the circulating fluid compression cavity A is communicated with a liquid inlet A and a liquid outlet A on the piston sleeves, and the circulating fluid compression cavity B is communicated with the liquid inlet B and the liquid outlet B on the piston sleeves.
2. A double acting circulation pump according to claim 1, wherein: the driving device comprises a motor, and an output shaft of the motor is connected with the transmission shaft through a coupler.
3. A double acting circulation pump according to claim 2, wherein: the motor adopts an explosion-proof motor.
4. A double acting circulation pump according to claim 1, wherein: and a bearing cover is arranged on the outer side of the bearing.
5. A double acting circulation pump according to claim 1, wherein: the piston sleeve is connected with the pump body through bolts and is provided with a sealing ring for sealing.
6. A double acting circulation pump according to claim 1, wherein: and a guide belt and a plug seal are arranged between the pump body and the piston, and the plug seal is installed and fixed through a cover plate and a screw.
7. A double acting circulation pump according to claim 1, wherein: the oil seal cover is connected with the pump body through bolts and is provided with a sealing ring for sealing.
8. A double acting circulation pump according to claim 1, wherein: the number of the eccentric wheels is two, and each eccentric wheel corresponds to two pistons.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322080887.7U CN220452138U (en) | 2023-08-03 | 2023-08-03 | Double-acting circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322080887.7U CN220452138U (en) | 2023-08-03 | 2023-08-03 | Double-acting circulating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220452138U true CN220452138U (en) | 2024-02-06 |
Family
ID=89739880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322080887.7U Active CN220452138U (en) | 2023-08-03 | 2023-08-03 | Double-acting circulating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220452138U (en) |
-
2023
- 2023-08-03 CN CN202322080887.7U patent/CN220452138U/en active Active
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