CN112628158A - Emergency drainage device of centrifugal water pump - Google Patents
Emergency drainage device of centrifugal water pump Download PDFInfo
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- CN112628158A CN112628158A CN202011506963.0A CN202011506963A CN112628158A CN 112628158 A CN112628158 A CN 112628158A CN 202011506963 A CN202011506963 A CN 202011506963A CN 112628158 A CN112628158 A CN 112628158A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0077—Safety measures
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Abstract
The invention discloses an emergency drainage device of a centrifugal pump, which comprises a centrifugal pump main body, a placing body, a drainage groove, a drainage hole and a drainage positioning mechanism, wherein the placing body is arranged on the centrifugal pump main body; through the linkage effect among the drainage groove, the drainage hole, the drainage movable column, the arc-shaped sealing plate and the movable plugging block, the centrifugal pump can be safely and timely subjected to emergency drainage pressure reduction work in the drainage work, the operation is simple, the effect is obvious, the stable drainage work is performed on the centrifugal pump on the premise of influencing the normal work of the centrifugal pump, and the drainage positioning mechanism can perform corresponding drainage pressure reduction work according to the actual working condition of the centrifugal pump body, so that the stability and the high efficiency are realized, the conveying work efficiency is improved, and the conveying efficiency is improved.
Description
Technical Field
The invention relates to the technical field of centrifugal pump devices, in particular to an emergency drainage device of a centrifugal pump.
Background
A Centrifugal pump (foreign name: Centrifugal pump) is a pump that transfers a liquid by Centrifugal force generated when an impeller rotates; the pump mainly comprises an impeller, a pump body, a pump shaft, a bearing, a sealing ring, a stuffing box and the like; it is mainly characterized in that: the water pump has the advantages of compact structure, wide flow lift range, uniform flow, stable operation, small vibration, lower maintenance cost and the like, wherein the water pump impeller is arranged at the center of the water pump impeller, because water is thrown out under the action of centrifugal force to form vacuum, the water in the water suction pool is pressed into the pump shell under the action of atmospheric pressure, and the impeller continuously rotates to enable the water to continuously flow in and out under the action of the impeller, thereby achieving the purpose of conveying the water.
When the centrifugal pump is used for conveying water, the pressure inside the pump body is increased along with the increase of the rotating speed of the impeller, and further the flow speed of the water in the pump body is faster, so that although the conveying working efficiency of the water is improved, the pump body can possibly damage running parts in the pump body in a large pressure environment, the rotating speed of the impeller is usually controlled, but the method increases the working labor amount, is unstable in effect and cannot meet the actual requirement, and the centrifugal pump in the prior art does not have a good pressure emergency treatment device, so that the normal work of the centrifugal pump body is influenced.
Disclosure of Invention
The invention aims to provide an emergency drainage device of a centrifugal water pump, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: an emergency drainage device of a centrifugal pump comprises a centrifugal pump main body, a placing body, a drainage groove, a drainage hole and a drainage positioning mechanism;
the centrifugal pump is characterized in that a placing body is arranged on the centrifugal pump main body, drainage grooves are symmetrically arranged on two sides of the placing body, and drainage holes are formed in one ends of the drainage grooves;
a fixed column is arranged in the drainage groove, a drainage movable column is movably arranged in the fixed column, one end of the drainage movable column is provided with a tension spring, the other end of the tension spring is arranged in the fixed column, the other end of the drainage movable column is provided with an arc-shaped sealing plate, and the arc-shaped sealing plate is tightly attached to the inner side wall of the cavity of the centrifugal water pump main body;
a first connecting block is arranged on one side of the drainage movable column, an extrusion inclined block is arranged at the other end of the first connecting block, first return springs are arranged on one side of the first connecting block at equal intervals, a movable blocking block is movably arranged in the drainage hole, a second return spring is arranged at one end of the movable blocking block, and the other end of the second return spring is arranged in the placing body;
the placing body is symmetrically and movably provided with a first movable extrusion rod and a second movable extrusion rod, one end of the first movable extrusion rod is provided with a circulation ring, the other end of the first movable extrusion rod is provided with an insertion column, the second movable extrusion rods are symmetrically arranged at two ends of the first connecting strip, the first connecting strip is symmetrically provided with a second reset spring, and the placing body is internally provided with a threaded column in a threaded connection manner;
the threaded column is sleeved with a second connecting strip, the inserting columns are symmetrically arranged at two ends of the second connecting strip, one end of the threaded column is provided with a cylinder, and the cylinder is connected with a drainage positioning mechanism.
Preferably, the drainage positioning mechanism comprises a sleeve, a fixing plate, an extrusion inserting column, a second connecting block, a movable clamping plate, an extrusion slope, a positioning square groove, a fixing block, a limiting groove, a transmission block, a movable positioning fixture block and a movable push block, wherein the sleeve is sleeved on the cylinder, the fixing plate is arranged on one side of the sleeve, the extrusion inserting column is movably arranged in the fixing plate, the second connecting block is arranged on the lateral side of one end of the extrusion inserting column, a third reset spring is equidistantly arranged on the second connecting block, the movable clamping plate is movably arranged in the fixing plate, the extrusion slope is arranged at one end of the movable clamping plate, a connecting spring is arranged at the same end of the movable clamping plate and the extrusion slope, the positioning square groove is arranged on one side of the movable clamping plate, the fixing block is arranged on the placing body, a square through groove is arranged in the fixing block, the transmission block activity sets up in the fixed block to the one end of transmission block is provided with the activity location fixture block, and the other end is provided with third reset spring, is provided with the extrusion recess on the transmission block, the activity of activity ejector pad sets up the avris position at the transmission block, and the bilateral symmetry of activity ejector pad is provided with the lug, is provided with fourth reset spring on the lug, and the one end of activity ejector pad is provided with the slope.
Preferably, the drainage hole is arranged at one end of the drainage groove, the drainage groove is a circular groove, and the diameter of the drainage groove is larger than that of the fixed column.
Preferably, the limiting groove corresponds to the movable clamping plate in arrangement position, and the width of the cross section of the notch of the limiting groove is equal to that of the cross section of the movable clamping plate.
Preferably, the movable positioning fixture block and the positioning square groove are arranged at corresponding positions and have the same number, and the cross section of the end part of the movable positioning fixture block is the same as that of the notch of the positioning square groove, namely the cross sections are equal in length and width.
Compared with the prior art, the invention has the beneficial effects that:
through the linkage effect among the drainage groove, the drainage hole, the drainage movable column, the arc-shaped sealing plate and the movable plugging block, the centrifugal pump can be safely and timely subjected to emergency drainage pressure reduction work in the drainage work, the operation is simple, the effect is obvious, the stable drainage work is performed on the centrifugal pump on the premise of influencing the normal work of the centrifugal pump, and the drainage positioning mechanism can perform corresponding drainage pressure reduction work according to the actual working condition of the centrifugal pump body, so that the stability and the high efficiency are realized, the conveying work efficiency is improved, and the conveying efficiency is improved.
Drawings
FIG. 1 is a schematic view of a connection structure according to the present invention;
FIG. 2 is an enlarged view of a portion of the connection structure of FIG. 1 according to the present invention;
FIG. 3 is a partial cross-sectional view of the internal connection structure of the placement body according to the present invention;
FIG. 4 is a partially enlarged view of the connection structure shown in FIG. 3 according to the present invention;
fig. 5 is a partial sectional view of the vent positioning mechanism attachment structure of the present invention.
In the figure: centrifugal pump main part 1, place the body 2, the earial drainage groove 3, discharge orifice 4, fixed column 5, earial drainage activity post 6, arc shrouding 7, first connecting block 8, extrusion sloping block 9, activity shutoff block 10, first activity extrusion stem 11, insert post 12, second activity extrusion stem 13, first connecting strip 14, threaded post 15, second connecting strip 16, earial drainage positioning mechanism 17, sleeve 1701, fixed plate 1702, extrusion insert post 1703, second connecting block 1704, movable cardboard 1705, extrusion slope 1706, location square groove 1707, fixed block 1708, spacing groove 1709, driving block 1710, activity location fixture block 1711, activity ejector pad 1712.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below. The embodiments of the present invention, and all other embodiments obtained by a person of ordinary skill in the art without any inventive work, belong to the scope of protection of the present invention.
Referring to fig. 1 to 5, the present invention provides a technical solution: the invention relates to an emergency drainage device of a centrifugal pump, which comprises a centrifugal pump main body 1, a placing body 2, a drainage groove 3, a drainage hole 4 and a drainage positioning mechanism 17;
a placing body 2 is arranged on a centrifugal pump main body 1, discharge grooves 3 are symmetrically arranged on two sides of the placing body 2, and discharge holes 4 are arranged at one ends of the discharge grooves 3;
a fixed column 5 is arranged in the discharge groove 3, a discharge movable column 6 is movably arranged in the fixed column 5, one end of the discharge movable column 6 is provided with a tension spring, the other end of the tension spring is arranged in the fixed column 5, the other end of the discharge movable column 6 is provided with an arc-shaped sealing plate 7, and the arc-shaped sealing plate 7 is closely attached to the inner side wall of the cavity of the centrifugal water pump main body 1;
a first connecting block 8 is arranged on one side of the drainage movable column 6, an extrusion inclined block 9 is arranged at the other end of the first connecting block 8, a first return spring is arranged on one side of the first connecting block 8 at equal intervals, a movable blocking block 10 is movably arranged in the drainage hole 4, a second return spring is arranged at one end of the movable blocking block 10, and the other end of the second return spring is arranged in the placing body 2;
a first movable extrusion rod 11 and a second movable extrusion rod 13 are symmetrically and movably arranged in the placing body 2, one end of the first movable extrusion rod 11 is provided with a circulation ring, the other end of the first movable extrusion rod 11 is provided with an insertion column 12, the second movable extrusion rods 13 are symmetrically arranged at two ends of a first connecting strip 14, second return springs are symmetrically arranged on the first connecting strip 14, and a threaded column 15 is arranged in the placing body 2 in a threaded connection manner;
the threaded column 15 is sleeved with a second connecting strip 16, the inserting columns 12 are symmetrically arranged at two ends of the second connecting strip 16, one end of the threaded column 15 is provided with a cylinder, and the cylinder is connected with a drainage positioning mechanism 17.
Further, the drain hole 4 is arranged at one end of the drain groove 3, the drain groove 3 is a circular groove, and the diameter of the drain groove 3 is larger than that of the fixed column 5.
Further, the position of the limiting groove 1709 corresponds to the position of the movable clamping plate 1705, and the width of the notch section of the limiting groove 1709 is equal to the width of the cross section of the movable clamping plate 1705.
Further, the drainage positioning mechanism 17 includes a sleeve 1701, a fixing plate 1702, an extrusion plunger 1703, a second connecting block 1704, a movable clamping plate 1705, an extrusion slope 1706, a positioning square groove 1707, a fixing block 1708, a limiting groove 1709, a transmission block 1710, a movable positioning fixture block 1711, a movable push block 1712, the sleeve 1701 is sleeved on the cylinder, the fixing plate 1702 is arranged at one side of the sleeve 1701, the extrusion plunger 1703 is movably arranged in the fixing plate 1702, the second connecting block 1704 is arranged at one end side of the extrusion plunger 1703, third return springs are equidistantly arranged on the second connecting block 1704, the movable clamping plate 1705 is movably arranged in the fixing plate 1702, the extrusion slope 1706 is arranged at one end of the movable clamping plate 1705, the connecting springs are arranged at the same end as the extrusion slope 1706, the positioning square groove 1707 is arranged at one side of the movable clamping plate 1705, the fixing block 1708 is arranged on the placing body 2, be provided with square through groove in the fixed block 1708, the avris of square through groove is provided with spacing groove 1709, the activity of drive piece 1710 sets up in fixed block 1708, and the one end of drive piece 1710 is provided with activity location fixture block 1711, the other end is provided with third reset spring, be provided with the extrusion recess on the drive piece 1710, activity ejector pad 1712 activity sets up the avris position at drive piece 1710, the bilateral symmetry of activity ejector pad 1712 is provided with the lug, be provided with fourth reset spring on the lug, the one end of activity ejector pad 1712 is provided with the slope.
Furthermore, the movable positioning fixture block 1711 and the positioning square groove 1707 are arranged at the corresponding positions and in the same number of groups, and the cross-sectional shape of the end of the movable positioning fixture block 1711 is the same as the cross-sectional shape of the notch of the positioning square groove 1707, that is, the cross-sectional lengths and the widths of the two are the same.
The working principle is as follows: when the emergency drainage work is carried out on the centrifugal pump body 1, firstly, the threaded column 15 on the placing body 2 is rotated, on one hand, the threaded column 15 extrudes the first connecting strip 14, the first connecting strip 14 further pushes the second movable extrusion rod 13 to extrude the extrusion inclined block 9, the extrusion inclined block 9 pushes the drainage movable column 6 to extrude the arc-shaped sealing plate 7 through the first connecting block 8, so that the water in the inner cavity of the centrifugal pump seeps out of the extrusion inclined block, meanwhile, the threaded column 15 drives the second connecting strip 16 to extrude the first movable extrusion rod 11 to the movable sealing block 10 between the drainage groove 3 and the drainage hole 4 until the circulation ring arranged at one end of the first movable extrusion rod 11 extrudes the movable sealing block 10, the ring opening of the circulation ring and one end of the drainage hole 4 are aligned with each other, so that the liquid entering the drainage groove 3 is discharged out of the pump body from the drainage hole 4 through the circulation ring, and the fixed plate 1702 reaches the position of the limit groove 1709, then the extrusion inserting column 1703 is directly pressed, the extrusion inserting column 1703 extrudes the extrusion slope 1706 on the movable clamping plate 1705, so that the movable clamping plate 1705 enters the limit groove 1709 until the positioning square groove 1707 on the movable clamping plate 1705 reaches the position of the movable positioning clamping block 1711, the movable positioning clamping block 1711 is clamped in the positioning square groove 1707 under the action of a third return spring, so that the position of the threaded column 15 is fixed, and the emergency flow discharge work of the pump body is quickly realized, therefore, the emergency flow discharge depressurization work of the centrifugal pump can be very timely and safely carried out in the flow discharge work through the linkage effect among the flow discharge groove sealing plate 3, the flow discharge hole 4, the flow discharge movable column 6, the arc 7 and the movable sealing block 10, the operation is simple, the effect is obvious, and the flow discharge work is stabilized on the centrifugal pump under the premise of influencing the normal work of the centrifugal pump, and through the leakage flow positioning mechanism 17 that sets up, can carry out corresponding leakage flow step-down work according to the actual behavior of the centrifugal pump body, stable, high-efficient, and then can more adapt to the transport work of centrifugal pump, improve and carry work efficiency.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an emergent earial drainage device of centrifugal pump which characterized in that: comprises a centrifugal pump main body (1), a placing body (2), a discharge groove (3), a discharge hole (4) and a discharge positioning mechanism (17);
a placing body (2) is arranged on the centrifugal pump main body (1), discharge grooves (3) are symmetrically arranged on two sides of the placing body (2), and discharge holes (4) are formed in one ends of the discharge grooves (3);
a fixed column (5) is arranged in the drainage groove (3), a drainage movable column (6) is movably arranged in the fixed column (5), one end of the drainage movable column (6) is provided with a tension spring, the other end of the tension spring is arranged in the fixed column (5), the other end of the drainage movable column (6) is provided with an arc-shaped sealing plate (7), and the arc-shaped sealing plate (7) is tightly attached to the inner side wall of the cavity of the centrifugal water pump main body (1);
a first connecting block (8) is arranged on one side of the drainage movable column (6), an extrusion inclined block (9) is arranged at the other end of the first connecting block (8), first return springs are arranged on one side of the first connecting block (8) at equal intervals, a movable blocking block (10) is movably arranged in the drainage hole (4), a second return spring is arranged at one end of the movable blocking block (10), and the other end of the second return spring is arranged in the placing body (2);
a first movable extrusion rod (11) and a second movable extrusion rod (13) are symmetrically and movably arranged in the placing body (2), a circulation ring is arranged at one end of the first movable extrusion rod (11), an inserting column (12) is arranged at the other end of the first movable extrusion rod, the second movable extrusion rod (13) is symmetrically arranged at two ends of a first connecting strip (14), a second return spring is symmetrically arranged on the first connecting strip (14), and a threaded column (15) is arranged in the placing body (2) in a threaded connection manner;
the threaded column (15) is sleeved with a second connecting strip (16), the inserting columns (12) are symmetrically arranged at two ends of the second connecting strip (16), a cylinder is arranged at one end of the threaded column (15), and a drainage positioning mechanism (17) is connected to the cylinder.
2. The emergency drainage device of a centrifugal water pump according to claim 1, wherein: the drainage positioning mechanism (17) comprises a sleeve (1701), a fixing plate (1702), an extrusion inserting column (1703), a second connecting block (1704), a movable clamping plate (1705), an extrusion slope (1706), a positioning square groove (1707), a fixing block (1708), a limiting groove (1709), a transmission block (1710), a movable positioning clamping block (1711) and a movable pushing block (1712), wherein the sleeve (1701) is sleeved on the cylinder, the fixing plate (1702) is arranged on one side of the sleeve (1701), the extrusion inserting column (1703) is movably arranged in the fixing plate (1702), the second connecting block (1704) is arranged on one end side of the extrusion inserting column (1703), a third return spring is equidistantly arranged on the second connecting block (1704), the movable clamping plate (1705) is movably arranged in the fixing plate (1702), and the extrusion slope (1706) is arranged at one end of the movable clamping plate (1705), activity cardboard (1705) are provided with connecting spring with extrusion slope (1706) same end to one side of activity cardboard (1705) is provided with location square groove (1707), fixed block (1708) set up on placing body (2), are provided with square through groove in fixed block (1708), and the avris of square through groove is provided with spacing groove (1709), driving block (1710) activity sets up in fixed block (1708), and the one end of driving block (1710) is provided with activity location fixture block (1711), and the other end is provided with third reset spring, is provided with the extrusion recess on driving block (1710), activity ejector pad (1712) activity sets up the avris position at driving block (1710), and the bilateral symmetry of activity ejector pad (1712) is provided with the lug, is provided with fourth reset spring on the lug, and the one end of activity ejector pad (1712) is provided with the slope.
3. The emergency drainage device of a centrifugal water pump according to claim 1, wherein: the one end at chute (3) is set up in earial drainage hole (4) to chute (3) are circular slot, and the diameter of chute (3) is greater than the diameter of fixed column (5).
4. The emergency drainage device of a centrifugal water pump according to claim 2, wherein: the limiting groove (1709) corresponds to the movable clamping plate (1705) in arrangement position, and the width of the cross section of the notch of the limiting groove (1709) is equal to that of the cross section of the movable clamping plate (1705).
5. The emergency drainage device of a centrifugal water pump according to claim 2, wherein: the movable positioning fixture block (1711) and the positioning square groove (1707) are arranged at corresponding positions and have the same number of groups, and the cross section of the end part of the movable positioning fixture block (1711) is the same as that of the notch of the positioning square groove (1707), namely the cross sections are equal in length and width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011506963.0A CN112628158A (en) | 2020-12-18 | 2020-12-18 | Emergency drainage device of centrifugal water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011506963.0A CN112628158A (en) | 2020-12-18 | 2020-12-18 | Emergency drainage device of centrifugal water pump |
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| Publication Number | Publication Date |
|---|---|
| CN112628158A true CN112628158A (en) | 2021-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011506963.0A Pending CN112628158A (en) | 2020-12-18 | 2020-12-18 | Emergency drainage device of centrifugal water pump |
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| CN (1) | CN112628158A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206144812U (en) * | 2016-08-24 | 2017-05-03 | 浙江威隆机械科技有限公司 | Pressure relief device of impeller pump |
| CN209180060U (en) * | 2018-11-24 | 2019-07-30 | 温州德翔科技有限公司 | A kind of releasing pressure automatically protection water pump with sealing function |
| CN209195738U (en) * | 2018-11-19 | 2019-08-02 | 深圳市智宇节能科技有限公司 | A kind of water pump |
| CN110486287A (en) * | 2018-05-14 | 2019-11-22 | 尚宝罗江苏节能科技股份有限公司 | A kind of fluid delivery pump |
| CN110848433A (en) * | 2019-12-13 | 2020-02-28 | 上海东方泵业集团南通有限公司 | Overpressure protection device for pipeline pump |
| CN210829760U (en) * | 2019-08-30 | 2020-06-23 | 溆浦中民燃气有限公司 | Liquefied petroleum gas pump |
| CN211599007U (en) * | 2019-09-18 | 2020-09-29 | 惠州市源立实业有限公司 | Water route double-sided mechanical seal pipeline pump with explosion-proof function |
-
2020
- 2020-12-18 CN CN202011506963.0A patent/CN112628158A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206144812U (en) * | 2016-08-24 | 2017-05-03 | 浙江威隆机械科技有限公司 | Pressure relief device of impeller pump |
| CN110486287A (en) * | 2018-05-14 | 2019-11-22 | 尚宝罗江苏节能科技股份有限公司 | A kind of fluid delivery pump |
| CN209195738U (en) * | 2018-11-19 | 2019-08-02 | 深圳市智宇节能科技有限公司 | A kind of water pump |
| CN209180060U (en) * | 2018-11-24 | 2019-07-30 | 温州德翔科技有限公司 | A kind of releasing pressure automatically protection water pump with sealing function |
| CN210829760U (en) * | 2019-08-30 | 2020-06-23 | 溆浦中民燃气有限公司 | Liquefied petroleum gas pump |
| CN211599007U (en) * | 2019-09-18 | 2020-09-29 | 惠州市源立实业有限公司 | Water route double-sided mechanical seal pipeline pump with explosion-proof function |
| CN110848433A (en) * | 2019-12-13 | 2020-02-28 | 上海东方泵业集团南通有限公司 | Overpressure protection device for pipeline pump |
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Application publication date: 20210409 |