CN211312803U - Prefabricated pump station - Google Patents
Prefabricated pump station Download PDFInfo
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- CN211312803U CN211312803U CN201921786817.0U CN201921786817U CN211312803U CN 211312803 U CN211312803 U CN 211312803U CN 201921786817 U CN201921786817 U CN 201921786817U CN 211312803 U CN211312803 U CN 211312803U
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Abstract
The utility model discloses a prefabricated pump station, which comprises a prefabricated barrel, wherein the prefabricated barrel is provided with a water inlet and a water outlet; a pump barrel is arranged in the prefabricated barrel, and a water pump is arranged at the bottom section of the pump barrel; the upper end of the pump cylinder is communicated with the water outlet; the water flows through the water inlet and falls into the bottom of the prefabricated barrel, is pumped into the pump barrel by the water pump positioned at the bottom of the prefabricated barrel and flows out of the water outlet, and the lower end of the water inlet is provided with a flow equalizing partition plate; the baffle that flow equalizes is fixed to be set up at prefabricated barrel inner wall, and the baffle that flow equalizes can convert the folk prescription of water inlet to annular rivers to evenly fall to prefabricated barrel bottom. The water flow is prevented from flowing into a single direction fixedly at a high flow speed or impacting a pump cylinder to cause water flow disorder; particularly, the utility model discloses improve current direct-entering rivers for annular rivers, the baffle that flow equalizes is located the barrel around, through setting up the discharge opening drainage downwards on the baffle that flow equalizes for the rivers that the water inlet was gone into can not the direct impact barrel, thereby make intake equivalent, even emission downwards.
Description
Technical Field
The utility model relates to a prefabricated pump station field, concretely relates to shock resistance, strong prefabricated pump station of stability.
Background
The prefabricated pump station has wide application, is a pre-integrated pump station device, and plays a key role in the aspects of novel city construction, old city water system transformation, flood prevention and disaster reduction, rural water conservancy and the like. The investment of traditional pump station is big, and the construction cycle is long, and area is big, influences pleasing to the eye and degree of automation low in the city. The prefabricated pump station has the advantages of small civil work load, low cost, less consumption of manpower and material resources and the like, and can be coordinated with the surrounding landscape. Prefabricated pump stations have become the focus of attention of municipal works and water conservancy projects at home and abroad.
Traditional pump station can make even, steady entering pump suction inlet of incoming flow through setting up longer straight water inlet channel. Because the space of the integrated prefabricated pump station is limited, the condition is not met, and therefore the problem that the water flow at the water pump suction inlet is rapid and unstable exists.
As in application No.: 201420411510.3, the name is: the patent application of "an integrated pump station with a buffer device" has already pointed out that: present pump station design, the water inlet directly sets up at prefabricated barrel unilateral, when intaking, the intaking of water inlet can direct impact pump barrel, and cause the unilateral, a large amount of intakes are concentrated in water pump one side, rivers are with higher velocity of flow, fixed inflow unidirectional direction is through water pump suction pump barrel, cause the rivers disorder, rivers local speed is too fast, can make rivers increasingly big to the impact of pump, and simultaneously, pump inlet rivers are inhomogeneous, this will produce unfavorable suction characteristic and swirl, probably induce the vibration of pump simultaneously, consequently, can influence the life-span of pump station, influence the stability of pump work.
Secondly, in the above-mentioned application, the buffer that comminuted grid added is provided with the corresponding position of water inlet in the barrel inner wall, and is poor to the slow down effect of rivers, and can cause the local atress of barrel too big, can induce the barrel slope even, and can't fundamentally guarantee that the intaking can evenly encircle at the water pump sunction inlet, can't solve the water pump unilateral and inhale rivers too big, produce the problem of swirl.
In conclusion, the existing prefabricated pump station cannot maintain good suction characteristics, and the suction characteristics mainly include whether the inflow water flow rate is reasonable, whether the flow state is uniform, whether suction unevenness occurs (the inflow water at some positions is more and the inflow water at some positions is less), and whether suction vortex occurs. If the above is not reasonable, cavitation and vibration of the water pump may be caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem who solves: the utility model aims at solving the deficiencies in the prior art, provide a can guarantee that the water pump absorbs water evenly, prevent that the water pump process of absorbing water from producing the prefabricated pump station of swirl.
The technical scheme of the utility model: the utility model discloses a prefabricated pump station, including prefabricated barrel, be equipped with water inlet and delivery port on the prefabricated barrel; a pump barrel is arranged in the prefabricated barrel, and a water pump is arranged at the bottom section of the pump barrel; the upper end of the pump cylinder is communicated with a water outlet; the water flows through the water inlet and falls into the bottom of the prefabricated barrel, is pumped into the pump barrel through a water pump positioned at the bottom of the prefabricated barrel and flows out through the water outlet, and a flow equalizing baffle plate is arranged at the lower end of the water inlet; the flow equalizing partition plate is fixedly arranged on the inner wall of the prefabricated barrel body, and can convert unidirectional water inflow of the water inlet into annular water flow and uniformly fall to the bottom of the prefabricated barrel body.
Furthermore, water outlet openings are distributed on the flow equalizing partition plate, and the opening area of each water outlet opening is sequentially increased from the position close to the water inlet end to the position far away from the water inlet end.
Furthermore, the flow equalizing partition plate comprises a water draining plate and a water baffle plate, a water draining opening is formed in the water draining plate, and the top end of the water baffle plate is higher than the highest position of the water inlet.
Furthermore, a rectifier is arranged at the bottom of the prefabricated cylinder body and is positioned right below the pump cylinder.
Furthermore, an annular flange is arranged on the outer circumferential surface of the bottom of the pump barrel.
Furthermore, a splitter plate is arranged on the rectifier, and the height of the splitter plate is consistent with that of the suspended water pump.
The utility model has the advantages of compared with the prior art:
1. the lower end of the water inlet is provided with the flow equalizing partition plate, water flow flowing in from the water inlet firstly flows into the flow equalizing partition plate and uniformly falls to the bottom of the prefabricated barrel in an annular shape, and the problem that the water flow is disturbed due to the fact that the water flow fixedly flows into a single direction at a high flow speed or impacts a pump barrel is avoided; particularly, the utility model discloses improve current direct-entering rivers into annular rivers, the baffle that flow equalizes is located around the barrel, through setting up the outlet drainage downwards on the baffle that flow equalizes, makes the rivers that the water inlet was washed into can not directly impact the barrel, thereby makes the equivalent, even emission downwards of intaking, and the water velocity is reasonable, the flow state is even, is showing the inflow condition who improves the inlet tube, makes this prefabricated pump station keep the pump body under the stable circumstances, is applicable to bigger inflow; after the flow velocity of the water flow discharged from the water inlet pipe is reduced, the water flow is uniform and slow when flowing into the bottom rectifier, so that when the water pump absorbs water, the phenomenon of uneven suction (water enters from positions with more water at some positions and less water enters from other positions) can not occur, the suction flow state of the suction vortex which does not interfere with the bottom water pump can not be generated, and the suction characteristic of the water pump is improved.
2. The flow equalizing baffle comprises a water outlet plate and a water baffle plate, the opening area of a water outlet on the water outlet plate is sequentially increased from the end close to the water inlet end to the end far away from the water inlet end, the water can uniformly fall to the bottom of the barrel body after the direct inflow of the water inlet is changed into the annular flow, and the water falling speed of the water outlet close to the water inlet end and the water falling speed of the water outlet far away from the water inlet end are the same; when the water flow is too large, the water flow at the water inlet can sink over the water baffle and uniformly fall into the bottom of the cylinder in an annular shape through the gap between the water baffle and the pump cylinder, so that the water body is directly prevented from entering the bottom of the cylinder in a single direction and in large quantity and being sucked by the pump body; adopt two kinds of modes of flow equalizing, the guarantee pump body absorbs water evenly stably, avoids the vortex phenomenon to take place.
3. Be equipped with the rectifier in the prefabricated barrel, the rectifier can further evenly introduce the import of pump with the rivers in the prefabricated barrel, and the rectifier is equipped with a plurality of flow distribution plates, falls into a plurality of small runners bottom the prefabricated barrel, prevents rivers rotation in a circumferential direction and disorderly impact, and further assurance water pump inlet's incoming flow is even, equivalent, can prevent the production of suction swirl. The rectifier can make the rivers that get into the water pump bell mouth form smooth flow path, prevents that the bottom of bell mouth from inhaling mutually striking between the rivers.
4. The outer circumference of the bottom of the pump barrel is provided with an annular flange, so that the flow cross-section area of a suction inlet of the water pump is enlarged, and is approximate to the cylindrical surface area of a cylinder; through setting up the annular flange, make the liquid inlet section that the water pump was inhaled move to the barrel periphery, increased the inspiratory area of side direction, overflow the increase of section area, then the suction flow rate reduces, prevents to arouse the swirl because of the velocity of flow of overspeed around the water pump sunction inlet. And because the water pump is intake and is restricted between annular flange and rectifier, the velocity of flow constantly increases, and continuous operation can prevent the impurity siltation of import.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a schematic plan view of the flow equalizing partition plate of the present invention;
fig. 4 is a schematic plan view of the rectifier of the present invention;
FIG. 5 is a schematic view of the overall structure of the present invention;
FIG. 6 is a schematic view showing the flow of water on the end face of the pump cylinder with the annular flange according to the present invention;
fig. 7 is the cross-sectional view of the bottom of the pump barrel.
Detailed Description
In order to deepen the understanding of the present invention, we will make further details of the present invention with reference to the drawings, and this embodiment is only used to explain the present invention, and does not constitute a limitation to the protection scope of the present invention.
Fig. 1 shows an embodiment of the prefabricated pump station of the present invention, which comprises a prefabricated cylinder 1, wherein the prefabricated cylinder 1 is provided with a water inlet 4 and a water outlet 5; the prefabricated barrel body 1 is internally provided with a pump barrel 2, and the bottom of the pump barrel 2 is provided with an annular flange 21. The bottom section of the pump barrel 2 is provided with a water pump 3; the upper end of the pump barrel 2 is communicated with a water outlet 5; the water flows through the water inlet 4 and falls into the bottom of the prefabricated cylinder 1, is pumped into the pump cylinder 2 through the water pump 3 positioned at the bottom of the prefabricated cylinder 1 and flows out through the water outlet 5, and the lower end of the water inlet 4 is provided with a flow equalizing partition plate 6; the flow equalizing partition plate 6 is fixedly arranged on the inner wall of the prefabricated cylinder body 1, the flow equalizing partition plate 6 comprises a drain board 601 and a water baffle 602, a drain opening 61 is formed in the drain board 601, and the top end of the water baffle 602 is higher than the highest position of the water inlet 4. The drain board 601 is provided with drain openings 61, and the opening area of the drain openings 61 is sequentially increased from the end close to the water inlet 4 to the end far away from the water inlet 4. The flow equalizing partition plate 6 can convert the unidirectional water inflow of the water inlet into annular water flow and uniformly fall to the bottom of the prefabricated barrel body 1. The bottom of the prefabricated cylinder body 1 is provided with a rectifier 7. The rectifier 7 consists of a bell-shaped water guide cone 72 and a plurality of flow equalizing flow channels 710 separated by splitter plates 71; the height of the flow distribution plate 71 is consistent with the height of the water pump 3 in a hanging manner, the molded line of the water guide cone of the bell-shaped water guide cone 72 is 1/4 ellipse, the flow equalizing channel 710 is composed of a plurality of straight ribs, and the height of the flow equalizing channel 710 is consistent with the molded line of the ellipse;
in this embodiment, the water pump 3 may be an axial flow pump;
the total area of the drain opening 61 is 580 × 228 × 12 ═ 1586880, the cross-sectional area of the water inlet 4 is 3.14 × 600 × 1130400, and the area of the drain opening 61 is 1.4 times the cross-sectional area of the water inlet 4 of 1586880/1130400.
As shown in fig. 5 and 6, the bottom of the pump barrel 2 is provided with an annular flange 21, which can enlarge the flow cross-sectional area of the water pump suction inlet, wherein the flow cross-sectional area is approximately the cylindrical surface area of a cylinder, i.e., the calculation formula of the flow cross-sectional area is that a is 2 pi Rh, where R is the calculated position cross-sectional radius and h is the calculated position cross-sectional height. As shown in fig. 6, when the flow cross-sectional area a of the annular flange 21 is 2 pi Rh 2 × 3.14 × 900 × 575 3249900, and when the flow cross-sectional area a of the annular flange 21 is not provided is 2 pi Rh 2 × 3.14 × 558 × 606 × 2123569, the flow cross-sectional area of the annular flange 21 is 1.53 times that of the annular flange 21, which is not provided, 3249900/2123569. This will greatly reduce the cross-sectional flow velocity and significantly prevent the turbulence and eddies of the suction flow regime caused by excessively high flow velocities.
Referring to fig. 1, a water inlet 4 capable of receiving water in one direction is arranged on the inner wall of a prefabricated cylinder 1, the water in the one direction is converted into annular water flow, and the annular water flow uniformly falls to a flow equalizing partition plate 6 at the bottom of the prefabricated cylinder 1; the flow equalizing partition plate 6 specifically comprises a drain plate 601 and a water baffle 602; the drain board 601 is arranged on the inner wall of the prefabricated cylinder body 1 and is positioned at the lower end of the water inlet 4, the edge of the drain board 601 is not contacted with the pump cylinder 2, the drain opening 61 is arranged on the drain board 601, the opening area of the drain opening 61 is sequentially increased from the end close to the water inlet 4 to the end far away from the water inlet 4, and the inflow water can flow downwards along the periphery of the prefabricated cylinder body 1 in an equivalent manner; the edge of the water drain plate 601 is provided with a water baffle 602, and the upper end of the water baffle 602 is higher than the water inlet 4; when the water amount is too large, the inlet water flow overflows the water baffle 602, forms an annular water curtain along the gap between the water baffle 602 and the pump barrel 2, and uniformly falls to the flow equalizing partition plate 6 at the bottom of the prefabricated barrel 1; pumped by a water pump 3 and then sent to a water outlet 5 through a pump cylinder 2.
The utility model has the characteristics of can guarantee that the water pump absorbs water evenly, prevent that the water pump from absorbing water the process and producing the swirl, be equipped with the baffle 6 that flow equalizes at the water inlet 4 lower extreme, the rivers that flow in by water inlet 4 converge the baffle earlier, take the form of the annular and evenly fall to prefabricated barrel 1 bottom, prevented that rivers from causing rivers disorder with higher velocity of flow, fixed inflow single direction, or impact pump barrel; particularly, the utility model discloses improve current direct-entering rivers into annular rivers, flow equalizing baffle 6 is located the barrel all around, through setting up the outlet 61 drainage downwards on flow equalizing baffle 6, makes the rivers that water inlet 4 is rushed into can not directly impact the barrel, thereby makes the equivalent, even emission downwards of intaking, is showing the inflow condition who improves the inlet tube, makes this prefabricated pump station keep the pump body under stable circumstances, applicable in bigger inflow; after the flow velocity of water flow discharged from the water inlet pipe is reduced, the water flow is uniform and slow when flowing into the bottom rectifier, the suction flow state of the bottom water pump is not interfered, and the suction characteristic of the water pump is improved; be equipped with rectifier 7 in the prefabricated barrel 1, the rectifier can further evenly introduce the import of pump with the rivers in the prefabricated barrel, and the rectifier is equipped with a plurality of flow distribution plates 71, will divide into a plurality of small runners bottom the prefabricated barrel 1, prevents that rivers circumference is rotatory and disorderly impact, and further assurance water pump import's incoming flow is even, equivalent, can prevent the production of suction swirl. The rectifier can enable water flow entering the bell mouth of the water pump to form a smooth flow track, and mutual impact between water flows sucked from the bottom of the bell mouth is prevented; the outer circumferential surface of the bottom of the pump barrel 2 is provided with an annular flange 21, so that the flow cross section area of a suction inlet of the water pump 3 is enlarged, and the flow cross section area is approximate to the cylindrical surface area of a cylinder; by arranging the annular flange 21, the section of a liquid inlet sucked by the water pump moves to the periphery of the cylinder, the lateral suction area is increased, the area of the overflowing section is increased, the suction flow speed is reduced, and the vortex caused by the over-fast flow speed around the suction inlet of the water pump 3 is prevented. And because the water pump intake is restricted between annular flange 21 and rectifier 7, the velocity of flow is constantly increased, and the continuous operation can prevent the impurity siltation of import.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the claims and their equivalents.
Claims (6)
1. A prefabricated pump station comprises a prefabricated barrel body (1), wherein a water inlet (4) and a water outlet (5) are formed in the prefabricated barrel body (1); a pump barrel (2) is arranged in the prefabricated barrel (1), and a water pump (3) is arranged at the bottom section of the pump barrel (2); the upper end of the pump cylinder (2) is communicated with a water outlet (5); the rivers flow through water inlet (4) fall into prefabricated barrel (1) bottom, in pump barrel (2) are drawn in water pump (3) suction that are located prefabricated barrel (1) bottom, the warp delivery port (5) flow out, its characterized in that: the lower end of the water inlet (4) is provided with a flow equalizing baffle plate (6); the flow equalizing partition plate (6) is fixedly arranged on the inner wall of the prefabricated barrel body (1), and the flow equalizing partition plate (6) can convert unidirectional water inflow of a water inlet into annular water flow and uniformly fall to the bottom of the prefabricated barrel body (1).
2. The prefabricated pump station of claim 1, wherein: and water drainage openings (61) are distributed on the flow equalizing partition plate (6), and the opening areas of the water drainage openings (61) are sequentially increased from the end close to the water inlet (4) to the end far away from the water inlet (4).
3. The prefabricated pump station according to claim 1 or 2, wherein: the flow equalizing baffle (6) comprises a water drainage plate (601) and a water baffle (602), a water drainage opening (61) is formed in the water drainage plate (601), and the top end of the water baffle (602) is higher than the highest position of the water inlet (4).
4. The prefabricated pump station of claim 1, wherein: the prefabricated barrel (1) bottom is equipped with rectifier (7), rectifier (7) are located under pump barrel (2).
5. The prefabricated pump station of claim 1, wherein: and an annular flange (21) is arranged on the outer circumferential surface of the bottom of the pump barrel (2).
6. The prefabricated pump station of claim 4, wherein: the rectifier (7) is provided with a splitter plate (71), and the height of the splitter plate (71) is consistent with that of the water pump (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921786817.0U CN211312803U (en) | 2019-10-23 | 2019-10-23 | Prefabricated pump station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921786817.0U CN211312803U (en) | 2019-10-23 | 2019-10-23 | Prefabricated pump station |
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| Publication Number | Publication Date |
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| CN211312803U true CN211312803U (en) | 2020-08-21 |
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| CN201921786817.0U Active CN211312803U (en) | 2019-10-23 | 2019-10-23 | Prefabricated pump station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761389A (en) * | 2019-10-23 | 2020-02-07 | 江苏中兴水务有限公司 | Prefabricated pump station and water body flow stabilizing method suitable for prefabricated pump station |
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2019
- 2019-10-23 CN CN201921786817.0U patent/CN211312803U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110761389A (en) * | 2019-10-23 | 2020-02-07 | 江苏中兴水务有限公司 | Prefabricated pump station and water body flow stabilizing method suitable for prefabricated pump station |
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