CN210423077U - Throttling adjusting device - Google Patents
Throttling adjusting device Download PDFInfo
- Publication number
- CN210423077U CN210423077U CN201921217721.2U CN201921217721U CN210423077U CN 210423077 U CN210423077 U CN 210423077U CN 201921217721 U CN201921217721 U CN 201921217721U CN 210423077 U CN210423077 U CN 210423077U
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- China
- Prior art keywords
- balance
- balanced
- pipe
- drum
- centrifugal pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001105 regulatory effect Effects 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 238000005299 abrasion Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a throttling adjusting device, which comprises a centrifugal pump, a rotor impeller is arranged in the centrifugal pump body through a pump shaft, a balance drum is arranged on the pump shaft at one side of the rotor impeller, a throttling bush is arranged at the peripheral side of the balance drum, a mechanical seal is arranged at one side of the throttling bush far away from the balance drum, the inner part of the throttling bush and the balance drum form a balance cavity, the upper part of the throttling bush is connected with a balance pipe I through a water outlet hole, the water outlet hole is communicated with the balance cavity, the other end of the balance pipe I is connected with an adjusting seat of a flow regulator, the other end of the adjusting seat is connected with a balance pipe II, the other end of the balance pipe II is connected with a water inlet pipe of the centrifugal pump, the utility model can adjust the leakage amount of the gap of the balance drum through the flow regulator, adjust the pressure, the balance of the rotor is achieved, meanwhile, the leakage amount is reduced, the abrasion is reduced, and the efficiency of the centrifugal pump is improved.
Description
Technical Field
The utility model relates to a centrifugal pump technical field, concretely relates to throttle adjusting device.
Background
At the present stage, with the sustainable development of economy in China, the centrifugal pump is used as a general mechanical product widely applied and has huge requirements in the fields of thermal power generation, petrochemical industry and the like. Safe and stable operation of various centrifugal pump devices as industrial hearts is usually guaranteed by stable and continuous operation of the whole production system. In order to meet the requirement of a user on the efficiency of the centrifugal pump, a throttling orifice plate mechanism is added behind a balance drum, and the aims of saving energy and reducing consumption are fulfilled.
At present, the prior art in the technical field is as follows: the balance mechanism of the multistage centrifugal pump is mainly a balance drum or a balance drum and a balance disc for balancing; the balance leakage amount of the balance drum is large, and the efficiency is low; the balance drum and the balance disc are balanced and easy to wear.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to adjust balanced chamber pressure behind the balanced drum, guarantee that the centrifugal pump opens, stops balanced chamber pressure change little in the twinkling of an eye or when the flow sudden change, for solving above-mentioned problem, the utility model provides a throttle adjusting device.
The purpose of the utility model is realized with the following mode:
the utility model provides a throttle adjusting device, includes the centrifugal pump, installs rotor impeller at the centrifugal pump is internal through the pump shaft, is equipped with balanced drum on the pump shaft of one side of rotor impeller, balanced drum week side is equipped with the throttle bush, one side that balanced drum was kept away from to the throttle bush is equipped with mechanical seal, the inside balanced chamber that becomes with balanced drum shape of throttle bush, throttle bush upper portion is passed through the apopore and is connected balance pipe I, the apopore intercommunication is balanced the chamber, connects flow regulator's regulation seat at the other end of balance pipe I, adjusts the seat opposite side and connects balance pipe II, and the inlet tube of centrifugal pump is connected to the other end of balance pipe II.
The flow regulator comprises a regulating seat and a regulating bolt, wherein a T-shaped through hole which is communicated with each other is formed in the middle of the regulating seat, two ends of the T-shaped through hole of the regulating seat are respectively welded with the balance pipe I and the balance pipe II, and the other end of the T-shaped through hole is in threaded connection with the regulating bolt.
The mechanical seal is a cartridge mechanical seal.
Compared with the prior art, the utility model discloses can adjust the leakage quantity that lets out in balance drum clearance through flow regulator, adjust balance drum back balance chamber pressure, guarantee that the centrifugal pump opens, stops in the twinkling of an eye or when the flow sudden change, balance chamber pressure changes for a short time, reaches rotor balance, reduces simultaneously and lets out leakage quantity, reducing wear, improves the efficiency of centrifugal pump.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The pump comprises a mechanical seal 1, a throttling bush 2, a balance drum 3, a pump shaft 4, a balance cavity 5, a water outlet hole 6, a balance pipe I7, a balance pipe II 8, an adjusting seat 9 and an adjusting bolt 10.
Detailed Description
As shown in the attached drawing 1, a throttle adjusting device, including the centrifugal pump, install the rotor impeller at the centrifugal pump internally through pump shaft 4, be equipped with balanced drum 3 on the pump shaft 4 of one side of rotor impeller, 3 week sides of balanced drum are equipped with throttle bush 2, one side that balanced drum 3 was kept away from to throttle bush 2 is equipped with mechanical seal 1, 2 insides of throttle bush form balanced chamber 5 with balanced drum 3, and 2 upper portions of throttle bush are passed through apopore 6 and are connected balance pipe I7, apopore 6 intercommunication balance chamber 5, at balance pipe I7's the other end flow regulator's of balance pipe regulation seat 9, adjusts seat 9 opposite side and connects balance pipe II 8, and the inlet tube of centrifugal pump is connected to the other end of balance pipe II 8.
The flow regulator comprises a regulating seat 9 and a regulating bolt 10, the middle of the regulating seat 9 is provided with a T-shaped through hole which is communicated with each other, two ends of the T-shaped through hole of the regulating seat 9 are respectively welded with a balance pipe I7 and a balance pipe II 8, the other end of the T-shaped through hole is in threaded connection with the regulating bolt 10, the regulating seat 9 is communicated with the balance pipe I7 and the balance pipe II 8, the flow of water flowing through the regulating seat 9 is controlled through the regulating bolt 10, and therefore the pressure of the balance cavity 5 behind the balance drum 3 is regulated and controlled.
The mechanical seal 1 is a container type mechanical seal 1, is simple and convenient to install, has no artificial installation error, is suitable for most stuffing boxes, is easy to replace packing or bearing seal, is convenient to dismantle, is easy to refit outside a field, and is easy to install in places which are difficult to install.
The working process of the utility model is as follows: high-pressure water in the centrifugal pump cylinder enters the balance cavity 5 after being throttled by the balance drum 3, pressure water in the balance cavity 5 enters the adjusting seat 9 through the balance pipe I7, then flows into the balance pipe II 8 through the adjusting seat 9, flows into the centrifugal pump inlet through the balance pipe II 8, namely the water inlet pipe of the centrifugal pump, the flow of the water flowing through the adjusting seat 9 is controlled through the adjusting bolt 10, thereby the pressure of the balance cavity 5 behind the balance drum 3 is adjusted and controlled, the adjustment of leakage amount is realized, the pressure of the balance cavity 5 is adjusted, further the rotor balance is achieved, the leakage amount is reduced, the abrasion is reduced, the efficiency of the centrifugal pump is improved, and the balance of the centrifugal pump is improved
Other content participates in the prior art.
While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.
Claims (3)
1. A throttle adjusting device comprises a centrifugal pump, and is characterized in that: install rotor impeller at the centrifugal pump internally through the pump shaft, be equipped with balanced drum on the pump shaft of one side of rotor impeller, balanced drum week side is equipped with the throttle bush, one side that balanced drum was kept away from to the throttle bush is equipped with mechanical seal, the inside balanced chamber that becomes with balanced cydariform of throttle bush, throttle bush upper portion is passed through the apopore and is connected balanced pipe I, apopore intercommunication balanced chamber connects flow regulator's regulation seat at the other end of balanced pipe I, adjusts the seat opposite side and connects balanced pipe II, and the inlet tube of centrifugal pump is connected to the other end of balanced pipe II.
2. The throttle adjustment device of claim 1, wherein: the flow regulator comprises a regulating seat and a regulating bolt, wherein a T-shaped through hole which is communicated with each other is formed in the middle of the regulating seat, two ends of the T-shaped through hole of the regulating seat are respectively welded with the balance pipe I and the balance pipe II, and the other end of the T-shaped through hole is in threaded connection with the regulating bolt.
3. The throttle adjustment device of claim 1, wherein: the mechanical seal is a cartridge mechanical seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921217721.2U CN210423077U (en) | 2019-07-31 | 2019-07-31 | Throttling adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921217721.2U CN210423077U (en) | 2019-07-31 | 2019-07-31 | Throttling adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423077U true CN210423077U (en) | 2020-04-28 |
Family
ID=70384045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921217721.2U Expired - Fee Related CN210423077U (en) | 2019-07-31 | 2019-07-31 | Throttling adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210423077U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594191A (en) * | 2020-12-29 | 2021-04-02 | 亿志机械设备(无锡)有限公司 | Small-flow high-lift multistage centrifugal pump |
-
2019
- 2019-07-31 CN CN201921217721.2U patent/CN210423077U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594191A (en) * | 2020-12-29 | 2021-04-02 | 亿志机械设备(无锡)有限公司 | Small-flow high-lift multistage centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200428 |