CN216407150U - Control system of multiphase mixed transmission double-screw pump skid-mounted device - Google Patents
Control system of multiphase mixed transmission double-screw pump skid-mounted device Download PDFInfo
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- CN216407150U CN216407150U CN202123157225.2U CN202123157225U CN216407150U CN 216407150 U CN216407150 U CN 216407150U CN 202123157225 U CN202123157225 U CN 202123157225U CN 216407150 U CN216407150 U CN 216407150U
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Abstract
The utility model discloses a control system of a skid-mounted device of a multiphase mixed transmission double-screw pump, which comprises a pump body, wherein a front cover is arranged on one side surface of the pump body, a rear cover is arranged on the other side surface of the pump body, and a driving shaft is axially arranged on the pump body, the front cover and the rear cover; the interior of the pump body is of a cavity structure, the upper end of the pump body is provided with a pump body suction end, and the lower end of the pump body is provided with a pump body discharge end; the pump body suction end and the pump body discharge end are respectively communicated with the interior of the pump body; the discharge end of the pump body is connected with a discharge pipeline, a shunt pipeline is arranged between the end part of the front cover and the end part of the rear cover, and two ends of the shunt pipeline are communicated with the inside of the pump body; one end of the discharge pipeline is connected with the discharge end of the pump body, and the other end of the discharge pipeline is connected with the middle part of the discharge pipeline; a bushing is arranged between the pump body and the driving shaft, and a sealing cavity is formed between the bushing and the driving shaft; one end of the sealing cavity is communicated with the discharge end of the pump body, and the other end of the sealing cavity is communicated with the inside of the pump body. The utility model greatly improves the efficiency of pressurizing the aqueous medium step by step.
Description
Technical Field
The utility model relates to a control system, in particular to a control system of a skid-mounted device of a multiphase mixed transmission double-screw pump.
Background
Due to the intermeshing of the screws and the close fit of the screws with the inner wall of the liner, one or more sealed spaces are defined between the suction port and the discharge port of the pump. These sealed spaces are formed continuously at the suction end of the pump as the screw rotates and meshes, and the liquid in the suction chamber is sealed therein and is continuously pushed from the suction chamber to the discharge end in the axial direction of the screw, and the liquid sealed in each space is continuously discharged, as in the case where a nut is continuously pushed forward during the rotation of the screw, where the number of turns of the screw is regarded as the liquid, and the rotation of the screw corresponds to the case where the liquid is in the screw pump, which is the basic operation principle of the screw pump. The existing three-screw pump is inconvenient to be applied to a multiphase mixed transportation device, the step-by-step pressurization operation of the water medium is inconvenient, and the pressurization operation efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problems in the prior art, and provides a control system of a skid-mounted device of a multiphase mixed-delivery double-screw pump, which greatly improves the efficiency of pressurizing water media step by step.
The technical problem of the utility model is mainly solved by the following technical scheme:
a control system of a skid-mounted device of a multiphase mixed transmission double-screw pump comprises a pump body, wherein a front cover is arranged on one side surface of the pump body, a rear cover is arranged on the other side surface of the pump body, and a driving shaft is axially arranged on the pump body, the front cover and the rear cover; the interior of the pump body is of a cavity structure, the upper end of the pump body is provided with a pump body suction end, and the lower end of the pump body is provided with a pump body discharge end; the pump body suction end and the pump body discharge end are respectively communicated with the interior of the pump body; the discharge end of the pump body is connected with a discharge pipeline, a shunt pipeline is arranged between the end part of the front cover and the end part of the rear cover, and two ends of the shunt pipeline are communicated with the inside of the pump body; one end of the discharge pipeline is connected with the discharge end of the pump body, and the other end of the discharge pipeline is connected with the middle part of the discharge pipeline; a bushing is arranged between the pump body and the driving shaft, and a sealing cavity is formed between the bushing and the driving shaft; one end of the sealing cavity is communicated with the discharge end of the pump body, and the other end of the sealing cavity is communicated with the inside of the pump body.
Further, the driving shaft consists of a main rod and a slave rod, and the axial direction of the main rod is connected with the axial direction of the slave rod; a container type mechanical seal is arranged between the main rod and the front cover, an end cover is arranged at the back of the rear cover, and a rear shaft sleeve is arranged between the end cover and the auxiliary rod; the side part of the integrated mechanical seal is provided with a machine seal front end liquid leading interface, the side part of the rear shaft sleeve is provided with a machine seal rear end liquid leading interface, one end of a diversion pipeline is connected with the machine seal front end liquid leading interface, and the other end of the diversion pipeline is connected with the machine seal rear end liquid leading interface; a shaft sleeve baffle is arranged among the rear cover, the end cover and the rear shaft sleeve, and the rear cover and the shaft sleeve baffle are fixed and pressed by a shaft sleeve baffle pressing screw; the rear cover and the end cover are fixed and pressed by an end cover pressing screw; the integrated mechanical seal is fixed on the front cover through a mechanical seal fixing screw.
Furthermore, the other end of the discharge pipeline is connected with the middle part of the discharge pipeline through a mechanical seal liquid guiding tee; a mechanical seal liquid guiding throttle valve is arranged between the discharge pipeline and the discharge end of the pump body; the rear cover and the pump body are fixed and pressed by a rear cover pressing screw; the pump body and the bush are fixed and pressed by a bush pressing screw; the front cover and the pump body are fixed and pressed by a front cover pressing screw; and a front shaft sleeve is arranged between the front cover and the driving shaft, and the driving shaft and the front shaft sleeve are prevented from rotating and are axially limited by a shaft sleeve rotation-preventing screw.
According to the control system of the skid-mounted device of the multiphase mixed transmission double-screw pump, the driving shaft is actively driven by external driving equipment and can be driven by a driving motor; specifically, the main rod is actively driven by external driving equipment and can be driven by a driving motor; the slave rod is driven by the master rod, the master rod drives the slave rod to rotate, and the liquid medium is gradually pressurized in a sealed cavity formed by the master rod, the slave rod and the bushing in the rotation process of the screw rod and then is conveyed from the suction end of the pump body to the discharge end of the pump body; the discharge end of the pump body conveys the liquid medium into the pump body through a discharge pipeline and a shunt pipeline to form water circulation; more specifically, the pump body is externally connected with a natural water pipeline through the suction end of the pump body, after being sucked from the suction end of the pump body, a liquid medium is divided into two parts by the wall surface of the pump body and enters the starting ends of the spiral parts of the screws at the two ends, and the two parts are gradually pressurized by a plurality of sealing cavities formed by the main rod, the auxiliary rod and the lining and then gathered to the discharge end of the pump body, so the pump body is called a three-screw pump with a double-suction structure; the efficiency of pressurizing the aqueous medium step by step is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a control system of the multiphase mixed transmission double-screw pump skid-mounted device.
Fig. 2 is a schematic structural view of the pump body according to the present invention.
FIG. 3 is a schematic diagram of the internal structure of the control system of the multiphase mixed transmission twin-screw pump skid-mounted device.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.
As shown in fig. 1 to 3, a control system of a skid-mounted device of a multiphase mixed transmission double-screw pump comprises a pump body 4, wherein a front cover 3 is arranged on one side surface of the pump body 4, a rear cover 7 is arranged on the other side surface of the pump body 4, and a driving shaft is axially arranged on the pump body 4, the front cover 3 and the rear cover 7; the interior of the pump body 4 is of a cavity structure, the upper end of the pump body 4 is provided with a pump body suction end 41, and the lower end of the pump body 4 is provided with a pump body discharge end 42; the pump body suction end 41 and the pump body discharge end 42 are respectively communicated with the interior of the pump body 4; the discharge end 42 of the pump body is connected with a discharge pipeline 20, a shunt pipeline 25 is arranged between the end part of the front cover 3 and the end part of the rear cover 7, and two ends of the shunt pipeline 25 are communicated with the inside of the pump body 4; one end of the discharge pipe 20 is connected with the pump body discharge end 42, and the other end of the discharge pipe 20 is connected with the middle part of the discharge pipe 20; a bush 6 is arranged between the pump body 4 and the driving shaft, and a sealing cavity is formed between the bush 6 and the driving shaft; one end of the seal cavity is communicated with the pump body discharge end 42, and the other end of the seal cavity is communicated with the interior of the pump body 4; the driving shaft consists of a main rod 1 and a slave rod 5, and the axial direction of the main rod 1 is connected with the axial direction of the slave rod 5.
According to the control system of the skid-mounted device of the multiphase mixed transmission double-screw pump, the driving shaft is actively driven by external driving equipment and can be driven by a driving motor; specifically, the main rod 1 is actively driven by an external driving device, and can be driven by a driving motor; the driven rod 5 is driven by the main rod 1, the main rod 1 drives the driven rod 5 to rotate, the main rod 1 and the driven rod 5 are in a symmetrical structure at the axial center of a spiral part, and the structural form ensures that a sealing cavity exists between the main rod 1 and the driven rod 5 at the spiral part, so that liquid media are conveyed from the suction end 41 of the pump body to the discharge end 42 of the pump body after being pressurized step by step in the sealing cavity formed by the main rod 1, the driven rod 5 and the bushing 6 in the rotation process of the screw rod; the pump body discharge end 42 conveys the liquid medium to the interior of the pump body 4 again through the discharge pipeline 20 and the diversion pipeline 25 to form water circulation; more specifically, the pump body 4 is externally connected with a natural water pipeline through the pump body suction end 41, after being sucked from the pump body suction end 41, a liquid medium is divided into two parts by the wall surface of the pump body and enters the spiral part starting ends of the screws at the two ends, and is gradually pressurized by a plurality of sealed cavities formed by the main rod 1, the auxiliary rods 5 and the bushings 6 and then gathered to the pump body discharge end 42, so that the three-screw pump is called as a three-screw pump with a double-suction structure; the efficiency of pressurizing the aqueous medium step by step is greatly improved.
Preferably, a cartridge mechanical seal 2 is arranged between the main rod 1 and the front cover 3, in order to adapt to the international shaft seal standard, the cartridge mechanical seal 2 is introduced, the compression amount of a moving ring and a static ring of the cartridge mechanical seal 2 is adjusted to a proper position and compression amount, and the cartridge mechanical seal is fixed on the front cover 3 only by a mechanical seal fixing screw 17 without being adjusted by a customer; an end cover 8 is arranged at the back of the rear cover 7, and a rear shaft sleeve 12 is arranged between the end cover 8 and the driven rod 5; the rear shaft sleeve 12 enables the end cover 8 to be more firmly installed with the slave rod 5; the side part of the integrated mechanical seal 2 is provided with a mechanical seal front end liquid leading interface 21, the side part of the rear shaft sleeve 12 is provided with a mechanical seal rear end liquid leading interface 23, one end of a shunt pipeline 25 is connected with the mechanical seal front end liquid leading interface 21, and the other end of the shunt pipeline 25 is connected with the mechanical seal rear end liquid leading interface 23; the two ends of the shunt pipeline 25 are firmly butted with the machine seal rear end liquid guiding interface 23 and the machine seal front end liquid guiding interface 21 respectively, and the sealing performance is better. A shaft sleeve baffle plate 11 is arranged among the rear cover 7, the end cover 8 and the rear shaft sleeve 12, and the shaft sleeve baffle plate 11 enables the rear cover 7, the end cover 8 and the rear shaft sleeve 12 to be installed more firmly; the rear cover 7 and the shaft sleeve baffle 11 are fixed and pressed by a shaft sleeve baffle pressing screw 9; the rear cover 7 and the end cover 8 are fixed and pressed by an end cover pressing screw 13; the cartridge mechanical seal 2 is fixed on the front cover 3 by a mechanical seal fixing screw 17.
Preferably, the other end of the discharge pipeline 20 is connected with the middle part of the discharge pipeline 20 through a mechanical seal liquid guiding tee 22; the mechanical seal liquid guiding tee 22 enables the other end of the discharge pipeline 20 to be in butt joint with the middle of the discharge pipeline 20 to form a tee.
Preferably, a machine seal liquid guide throttle valve 24 is arranged between the discharge pipeline 20 and the pump body discharge end 42; the flow regulating range of the mechanical seal liquid guiding throttle valve 24 is large, and the flow-pressure difference change is smooth; the internal leakage amount is small, and if an external leakage oil port is arranged, the external leakage amount is small; facilitating throttle control of the discharge conduit 20.
Preferably, the rear cover 7 is fixed and pressed with the pump body 4 through a rear cover pressing screw 14; the pump body 4 and the bush 6 are fixed and pressed by a bush pressing screw 15; the front cover 3 and the pump body 4 are fixed and pressed tightly through a front cover pressing screw 19; the use of rear cover compression screws 14, bushing compression screws 15 and front cover compression screws 19 facilitates installation and assembly.
Preferably, a front shaft sleeve 16 is arranged between the front cover 3 and the driving shaft, and the driving shaft and the front shaft sleeve 16 are prevented from rotating and limited axially through a shaft sleeve rotation preventing screw 18; the front shaft sleeve 16 protects the peripheral surface of the driving shaft, and the driving shaft and the front shaft sleeve 16 are more firmly installed through the shaft sleeve rotation preventing screw 18 to prevent dislocation.
According to the control system of the skid-mounted device of the multiphase mixed transmission double-screw pump, the front shaft sleeve 16 is used for axially and radially positioning the shaft end of the main rod 1 and is made of wear-resistant materials; the shaft sleeve baffle 11 compresses the rear shaft sleeve 12 on the corresponding end surface of the main rod 1 to realize axial positioning. The rear shaft sleeve 12 also plays a role in radially positioning the main rod 1; the rear shaft sleeve 12 is made of wear-resistant material; the cylindrical pin 10 limits the rotation of the rear shaft sleeve 12 in the circumferential direction; the pump body discharge end 42 is provided with the mechanical seal drainage throttle valve 24, and a small part of high-pressure oil is distributed to the mechanical seal front end liquid guiding interface 21 and the mechanical seal rear end liquid guiding interface 23 through the mechanical seal drainage tee joint 22 by adjusting the flow of the mechanical seal drainage throttle valve 24, so that the integrated mechanical seal 2, the front shaft sleeve 16 and the rear shaft sleeve 12 are lubricated.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (10)
1. A control system of a skid-mounted device of a multiphase mixed transmission double-screw pump comprises a pump body, wherein a front cover is arranged on one side surface of the pump body, a rear cover is arranged on the other side surface of the pump body, and a driving shaft is axially arranged on the pump body, the front cover and the rear cover; the interior of the pump body is of a cavity structure, the upper end of the pump body is provided with a pump body suction end, and the lower end of the pump body is provided with a pump body discharge end; the pump body suction end and the pump body discharge end are respectively communicated with the interior of the pump body;
the method is characterized in that: the discharge end of the pump body is connected with a discharge pipeline, a shunt pipeline is arranged between the end part of the front cover and the end part of the rear cover, and two ends of the shunt pipeline are communicated with the inside of the pump body; one end of the discharge pipeline is connected with the discharge end of the pump body, and the other end of the discharge pipeline is connected with the middle part of the discharge pipeline; a bushing is arranged between the pump body and the driving shaft, and a sealing cavity is formed between the bushing and the driving shaft; one end of the sealing cavity is communicated with the discharge end of the pump body, and the other end of the sealing cavity is communicated with the inside of the pump body.
2. The control system of the skid-mounted device of the multiphase mixed transmission double-screw pump according to claim 1, characterized in that: the driving shaft consists of a main rod and a slave rod, and the axial direction of the main rod is connected with the axial direction of the slave rod.
3. The control system of the skid-mounted device of the multiphase mixed transmission double-screw pump according to claim 2, characterized in that: a container type mechanical seal is arranged between the main rod and the front cover, an end cover is arranged on the back of the rear cover, and a rear shaft sleeve is arranged between the end cover and the driven rod.
4. The control system of the skid-mounted device of the multiphase mixed transmission double-screw pump according to claim 3, characterized in that: the lateral part of the integrated mechanical seal is provided with a mechanical seal front end liquid leading interface, the lateral part of the rear shaft sleeve is provided with a mechanical seal rear end liquid leading interface, one end of the diversion pipeline is connected with the mechanical seal front end liquid leading interface, and the other end of the diversion pipeline is connected with the mechanical seal rear end liquid leading interface.
5. The control system of the skid-mounted device of the multiphase mixed transmission double-screw pump according to claim 3, characterized in that: a shaft sleeve baffle is arranged among the rear cover, the end cover and the rear shaft sleeve, and the rear cover and the shaft sleeve baffle are fixed and pressed by a shaft sleeve baffle pressing screw; the rear cover and the end cover are fixed and pressed tightly through the end cover pressing screw.
6. The control system of the skid-mounted device of the multiphase mixed transmission double-screw pump according to claim 3, characterized in that: the integrated mechanical seal is fixed on the front cover through a mechanical seal fixing screw.
7. The control system of the skid-mounted device of the multiphase mixed transmission double-screw pump according to claim 1, characterized in that: the other end of the discharge pipeline is connected with the middle part of the discharge pipeline through a mechanical seal liquid leading tee joint.
8. The control system of the skid-mounted device of the multiphase mixed transmission double-screw pump according to claim 1, characterized in that: a mechanical seal liquid guiding throttle valve is arranged between the discharge pipeline and the discharge end of the pump body.
9. The control system of the skid-mounted device of the multiphase mixed transmission double-screw pump according to claim 1, characterized in that: the rear cover and the pump body are fixed and pressed by a rear cover pressing screw; the pump body and the bush are fixed and pressed by a bush pressing screw; the front cover and the pump body are fixed and pressed by the front cover pressing screw.
10. The control system of the skid-mounted device of the multiphase mixed transmission double-screw pump according to claim 1, characterized in that: and a front shaft sleeve is arranged between the front cover and the driving shaft, and the driving shaft and the front shaft sleeve are prevented from rotating and are axially limited by a shaft sleeve rotation-preventing screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123157225.2U CN216407150U (en) | 2021-12-15 | 2021-12-15 | Control system of multiphase mixed transmission double-screw pump skid-mounted device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123157225.2U CN216407150U (en) | 2021-12-15 | 2021-12-15 | Control system of multiphase mixed transmission double-screw pump skid-mounted device |
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| CN216407150U true CN216407150U (en) | 2022-04-29 |
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| CN202123157225.2U Active CN216407150U (en) | 2021-12-15 | 2021-12-15 | Control system of multiphase mixed transmission double-screw pump skid-mounted device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117780636A (en) * | 2024-02-26 | 2024-03-29 | 东营华来智能科技有限公司 | Proportional quantitative liquid feedback device applied to single-screw oil-gas mixed delivery pump |
-
2021
- 2021-12-15 CN CN202123157225.2U patent/CN216407150U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117780636A (en) * | 2024-02-26 | 2024-03-29 | 东营华来智能科技有限公司 | Proportional quantitative liquid feedback device applied to single-screw oil-gas mixed delivery pump |
| CN117780636B (en) * | 2024-02-26 | 2024-05-03 | 东营华来智能科技有限公司 | Proportional quantitative liquid feedback device applied to single-screw oil-gas mixed delivery pump |
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