CN203475593U - Pump station base and pump station - Google Patents
Pump station base and pump station Download PDFInfo
- Publication number
- CN203475593U CN203475593U CN201320396816.1U CN201320396816U CN203475593U CN 203475593 U CN203475593 U CN 203475593U CN 201320396816 U CN201320396816 U CN 201320396816U CN 203475593 U CN203475593 U CN 203475593U
- Authority
- CN
- China
- Prior art keywords
- pumping plant
- hollow bulb
- base
- roof
- side wall
- 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 - Lifetime
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a pump station base and a pump station. The pump station base comprises at least one hollow part, wherein at least one filling part is arranged in the hollow part, so that fillers can be filled into the hollow part through the filling part. When the pump station base is installed on a site, concrete is filled into a first hollow part, so that the weight of the pump station base is increased, and the bearing capacity of the pump station base is improved. Therefore, the pump station can be reliably installed, the operation stability of the pump station is improved, and a great amount of material cost is reduced. The pump station provided by the utility model comprises the pump station base provided by the utility model.
Description
Technical field
The utility model relates to a kind of pumping plant base and pumping plant.
Background technology
Along with industrial expansion, the amount of industrial waste water is more and more, has therefore occurred various sewage disposal devices, and pumping plant is one of them.
In prior art, comprise pumping plant and the prefabricated pumping plant of civil engineering.The small volume of prefabricated pumping plant, carries the flow of fluid also less in the unit interval.Therefore, on the one hand, the fluid flow state in pumping plant is little to the normal influence on system operation of water pump; On the other hand, owing to being arranged on, the submersible pump weight of pumping plant bottom is less, so, although be by the unsettled pumping plant bottom that is installed on of the mounting seat that is certainly coupled, can not produce larger pulling force.Because submersible pump is conducted oneself with dignity and power is less, the vibration producing during operation is also less simultaneously.For example: notification number is that the Chinese utility model of CN 202809825 U discloses a kind of prefabricated buried integrated sewage pumping plant, comprises pumping plant main body, and pumping plant main body comprises collecting well, pumping plant tank body and pumping plant control room.Collecting well one side is connected with the first water inlet pipe, and opposite side is connected with the import of grid connector by the second water inlet pipe.Grid connector is arranged in pumping plant tank body, and the outlet of grid connector is connected with pulverizing grid, pulverizes grid one side and is provided with water pump, and water pump is arranged in pumping plant tank body, and water pump is connected with the outlet pipe of pumping plant tank body one side.Described pumping plant tank body is provided with pumping plant control room, and pumping plant is provided with switch board in control room, and switch board is connected with water pump with pulverizing grid respectively.Water pump is preferentially chosen as three, dual-purpose one standby.Pumping plant tank body is GRP high strength glass fiber reinforced plastic material, and the diameter of pumping plant tank body and height are definite according to flow and lift, and the optional scope of diameter of pumping plant tank body is 2～4m, and the optional scope of height of pumping plant tank body is 4～12m.
In the technical scheme of above-mentioned utility model, the bottom of pumping plant is flat.When pumping plant tank diameter is 4m, if it is fast to enter the large flow velocity of the fluid flow of pumping plant, can cause near the fluid flow state of water pump liquid sucting port inhomogeneous, thereby cause vortex or bring gas into, make water pump that the phenomenons such as cavitation erosion or vibration occur, this not only has a strong impact on pump performance, but also can produce larger exciting force.And if application is sewage, after long-term operation, pumping plant bottom has a large amount of alluvials, will greatly reduce the self-cleaning function of pumping plant, and has the risk that produces pernicious gas.
On the other hand, during installation volume and weight are larger in pumping plant water pump, because water pump is by the unsettled pumping plant bottom that is arranged on of base, the pulling force that puts on base and pumping plant bottom that water pump deadweight produces is very large; Due to the increase of water pump volume and power, in running, the vibration that water pump self produces also can strengthen simultaneously, thereby affects the stability of pumping plant.In order to prevent the vibration of pump in running, need to strengthen the bonding strength of the layer of concrete of the base of water pump and the bonding strength of pumping plant bottom and pumping plant bottom and below, whole pumping plant bottom.Therefore, need to thicken the thickness of pumping plant bottom and the thickness of layer of concrete.This has wasted large content of starting materials on the one hand, thereby the deadweight of increase pumping plant affects its transportation, increases cost of transportation; On the other hand, even bottom-thickened, layer of concrete thickening, the installation of the prefabricated pumping plant of above-mentioned utility model is still reliable not, because the technical scheme that the prefabricated pumping plant of above-mentioned utility model adopts is when mounted by stone bolt and layer of concrete anchoring for pumping plant tank body.In addition, traditional prefabricated pumping plant also can be fixed pumping plant tank body and layer of concrete by the mounting means of stone bolt and pressing plate.But stone bolt and pressing plate all can become flexible or lose efficacy, thereby generation activity surplus causes the installation soil rigidity of pumping plant not enough, and the vibration producing during water pump operation that in pumping plant, power is larger can cause the vibration of pumping plant base or whole pumping plant, even causes resonance.
Therefore, for the unit interval, need to carry the larger application of flow of fluid, in the time of need to increasing the volume of prefabricated pumping plant, the prefabricated pumping plant in above-mentioned utility model cannot guarantee the feed liquor condition that water pump inlet is good on the one hand, also cannot realize self-cleaning function.On the other hand, due to water pump deadweight and installation factor, the technical scheme of above-mentioned utility model also cannot overcome the vibration of vibration, pumping plant base or whole pumping plant of water pump self and resonance etc.
Publication number be US 20080011372 U.S. Patent Application Publication a kind of prefabricated pumping plant, comprise floor, be fixed on the enclosure wall on floor and be installed on a plurality of submersible pumps in enclosure wall.Enclosure wall is provided with inlet and liquid outlet.Fluid enters prefabricated pumping plant by inlet, under the dynamic action providing, by liquid outlet, is flowed out at submersible pump.Due to reasons such as heavy rains, the Fluid Volume that flows into prefabricated pumping plant is very huge sometimes, flow velocity is also very fast, and at this moment fluid is accompanied by a large amount of energy, if these energy directly impact submersible pump, particularly impact the liquid sucting port of submersible pump, be easy to for example form, to the disadvantageous running environment of submersible pump: near liquid sucting port, produce vortex, or air is brought into liquid sucting port, thereby produce cavitation erosion or vibration, cause submersible pump hydraulic performance decline.For this problem, in the enclosure wall of prefabricated pumping plant, contiguous inlet is provided with retaining device, and retaining device bottom is provided with a plurality of fluid ports, and a plurality of fluid ports correspond respectively to a plurality of submersible pumps.The fluid being flowed in enclosure wall by inlet is divided into a plurality of parts by retaining device, and every part flows to the liquid sucting port of corresponding submersible pump through corresponding fluid port, then is transferred out by submersible pump.
In order to realize energy dissipating and water conservancy diversion, prevent the deposition of mud etc., for submersible pump provides a good working environment, technical scheme in this U.S. Patent application is comparatively complicated, need the cooperation of multistage baffle plate and a plurality of fluid ports, in Practical manufacturing and assembling process, need more step, need to drop into more resource and manpower.In addition, also unexposed any about eliminating the technical scheme of water pump assembly, pumping plant vibration and resonance in this U.S. Patent application, do not disclose any about the technical scheme of pumping plant is installed yet.
Utility model content
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of and can optimize the fluid flow state that enters pumping plant imbibition hole, and improve the pumping plant base of pumping plant self-cleaning function.
Another object of the present utility model is to provide a kind of and can saves material, light, convenient transportation, and reliable pumping plant base is installed.
Another object of the present utility model is to provide a kind of vibration and consequent resonance that can effectively reduce water pump unit, pumping plant base, pumping plant itself, improves the pumping plant base of pumping station operation stability.
Another object of the present utility model is to provide a kind of pumping plant that comprises said pump station base.
For achieving the above object, the utility model adopts following technical scheme:
According to an aspect of the present utility model, the utility model provides a kind of pumping plant base, comprises at least one hollow bulb, and described hollow bulb is provided with at least one for pour into the perfusion portion of filler in described hollow bulb.
According to an embodiment of the present utility model, described pumping plant base also comprises: base side wall and at least one step.Described step comprises roof and sidewall, and described roof is connected in described base side wall.Part base side wall below the roof of described step and the sidewall of step and step surrounds and forms described hollow bulb.
According to an embodiment of the present utility model, described pumping plant base comprises first step and second step, and described first step and described second step are connected with at least one perfusion portion separately.
According to an embodiment of the present utility model, described first step is not less than described second step.
According to an embodiment of the present utility model, described pumping plant base also comprises the fastening devices of being located at second step, and described fastening devices comprises and is connected in several double-screw bolts described second step and that extend downward described the second hollow bulb.
According to an embodiment of the present utility model, described several double-screw bolts are divided at least one group, are connected with reinforcing bar in every group between at least a portion.
According to an embodiment of the present utility model, described base side wall extends upward formation wall extension, and the top ends of described wall extension is positioned in same level.
According to an embodiment of the present utility model, described wall extension top ends is provided with bell and spigot.
According to an embodiment of the present utility model, described base side wall bottom has to the root edge of direction in described base side wall and/or direction bending outside described base side wall.
According to an embodiment of the present utility model, described perfusion portion is selected from: at least one perfusing hole that is arranged on empty surface, at least one middle part and is communicated with described at least one hollow bulb, or the intrusion pipe that described at least one hollow bulb inside other end is positioned at described at least one hollow bulb outside is led in one end.
According to an embodiment of the present utility model, described perfusion portion is selected from: be arranged on base side wall and at least one perfusing hole being communicated with described at least one hollow bulb, or be arranged on the roof of at least one step or sidewall and at least one perfusing hole being communicated with described at least one hollow bulb, or the intrusion pipe that the inner other end of described at least one hollow bulb is positioned at described at least one hollow bulb outside is led in one end.
According to an embodiment of the present utility model, described pumping plant base also comprises that substrate and at least one be located at the fixed structure on described substrate.Described fixed structure comprises the many reinforcing bars that arrange upward, and described at least one fixed structure is convex to be stretched in described at least one hollow bulb.
According to an embodiment of the present utility model, the pumping plant base of described pumping plant comprises first step and second step.Described first step comprises roof and sidewall, and described roof is connected in described base side wall; Part base side wall below the roof of described first step and the sidewall of first step and first step surrounds and forms at least one first hollow bulb.Described second step comprises roof and sidewall, and described roof is connected in described base side wall, and the part base side wall below the roof of described second step and the sidewall of second step and second step surrounds and forms at least one second hollow bulb.Described second step is connected with several double-screw bolts, and described double-screw bolt extends downward described the second hollow bulb, and described several double-screw bolts are divided at least one group, is connected with reinforcing bar in every group between at least a portion.Described at least one fixed structure and at least one group of upper and lower interlaced arrangement of double-screw bolt.
According to an embodiment of the present utility model, the roof of described first step is higher than the liquid sucting port that is installed on the submersible pump unit in pumping plant.
According to an embodiment of the present utility model, described first step roof is obliquely installed, near described pumping plant base center line one side higher than away from described pumping plant base center line one side.In preferred technical scheme, cause the inhomogeneous and alluvial of fluidised form for fear of violent change of direction of flow, the angle of inclination is not more than 20 °.
According to an embodiment of the present utility model, described first step roof is obliquely installed, near described pumping plant base center line one side lower than away from described pumping plant base center line one side, and described first step roof is positioned on the liquid sucting port of submersible pump unit to the elongated surfaces of pumping plant base centerline direction, can prevent that fluid from directly pouring the liquid sucting port of submersible pump unit.
According to an embodiment of the present utility model, described first step roof is obliquely installed, near described pumping plant base center line one side lower than away from described pumping plant base center line one side, and described first step roof can intersect with the roof of second step to the elongated surfaces of pumping plant base centerline direction, both can prevent that fluid from directly pouring the liquid sucting port of submersible pump unit, also segment fluid flow can the be led pump seat rear of second step, wash away pump seat and near alluvial thereof, be conducive to the automatically cleaning of pumping plant.
According to an embodiment of the present utility model, described first step roof is horizontally disposed with.
According to an embodiment of the present utility model, described first step roof is provided with the raised line that some rules distribute.
According to an embodiment of the present utility model, described first step is not less than described second step.
According to an embodiment of the present utility model, described imbibition hole is located between described first step and described second step.The shape of the bottom in described imbibition hole determines by the shape of the sidewall of first step and the sidewall of second step, and when the sidewall of first step and the sidewall of second step are parallel plane, described imbibition hole is strip; When the sidewall of the first step the inside relative with the sidewall of second step is the cambered surface of protruding to pumping plant cylindrical shell center line, the shape that described imbibition hole is middle narrow two head breadths.
According to an embodiment of the present utility model, described first step is or/and second step is provided with anti-dead angle lead angle or anti-alluvial lead angle approaching imbibition hole bottom, and the shape of described lead angle can be for circular-arc.
According to an embodiment of the present utility model, described imbibition is provided with at least one anti-vortex device in hole.Preferably, described at least one anti-vortex device lay respectively at submersible pump unit described at least one being arranged in imbibition hole liquid sucting port under.
According to an embodiment of the present utility model, described pumping plant base also comprises the fastening devices of being located at second step, and fastening devices extends downward described the second hollow bulb.Fastening devices can be to be connected in several double-screw bolts of described second step.
According to an embodiment of the present utility model, described double-screw bolt is L-shaped.
According to an embodiment of the present utility model, described several double-screw bolts are divided at least one group, are connected with reinforcing bar in every group between at least a portion.
According to an embodiment of the present utility model, described base side wall extends upward formation wall extension, and the top ends of described wall extension is positioned in same level.
According to an embodiment of the present utility model, described pumping plant base can be independent parts, can be also a part for pumping plant cylindrical shell.
According to an embodiment of the present utility model, described wall extension top ends is provided with bell and spigot.
According to an embodiment of the present utility model, described base side wall bottom has to the root edge of direction in described base side wall and/or direction bending outside described base side wall.
According to an embodiment of the present utility model, described pumping plant base also comprises substrate and at least one fixed structure.At least one fixed structure is located on substrate, and described fixed structure comprises the many reinforcing bars that arrange upward, and described at least one fixed structure is convex to be stretched in described the first hollow bulb and/or described the second hollow bulb.Preferably, between described many reinforcing bars, be connected with horizontal reinforcing bar.
According to an embodiment of the present utility model, described pumping plant base also comprises second step, and second step comprises roof and sidewall, and described roof is connected in described base side wall.Part base side wall below the roof of described second step and sidewall and second step surrounds and forms at least one second hollow bulb.Several Stud connections are in described second step, and described double-screw bolt extends downward described the second hollow bulb; And described several double-screw bolts are divided at least one group, between at least a portion, be connected with reinforcing bar in every group.Described at least one fixed structure and at least one group of upper and lower interlaced arrangement of double-screw bolt.
According to an embodiment of the present utility model, described first step, described second step and described base side wall is one-body molded makes.
According to an embodiment of the present utility model, described pumping plant base is made by sheet material.
According to another aspect of the present utility model, the utility model provides a kind of pumping plant, comprises base, is arranged at cylindrical shell and at least one submersible pump unit on described base, and described cylindrical shell is provided with at least one inlet.Wherein said base is pumping plant base described in the utility model.
According to an embodiment of the present utility model, described pumping plant also comprises energy dissipator, and described energy dissipator is located at described first step top, and the roof of described first step is higher than the liquid sucting port of described submersible pump unit.
According to an embodiment of the present utility model, the flow area between described energy dissipator bottom and the roof of described first step is more than or equal to the flow area of described inlet.
As shown from the above technical solution, pumping plant base advantage of the present utility model and good effect are:
The utility model is provided with at least one hollow bulb.While installing at the scene, to concrete perfusion in the first hollow bulb, the weight that has increased the weight of pumping plant base with this has strengthened the supporting capacity of pumping plant base simultaneously, and pumping plant can be installed reliably, improves the stationarity of pumping station operation; Meanwhile, because pumping plant base of the present utility model is hollow base, therefore saved a large amount of costs of material, and convenient transportation.
Further, the utility model is provided with first step and second step, and first step and second step roof and the part base side wall below sidewall and step separately surrounds formation the first hollow bulb and the second hollow bulb, and submersible pump unit is arranged on second step by pump seat, the double-screw bolt that pump seat is installed extends downward the second hollow bulb.While installing at the scene, respectively to concrete perfusion in the first hollow bulb and the second hollow bulb, not only increased the weight of the weight of pumping plant base, strengthened the supporting capacity of pumping plant base, pumping plant can be installed reliably, improve the stationarity of pumping station operation, and strengthened the connection between pump seat and pumping plant base, can effectively suppress the vibration of submersible pump unit in running; Meanwhile, because pumping plant base of the present utility model is hollow base, therefore saved a large amount of costs of material, and convenient transportation.
Further, the utility model is also provided with substrate, and substrate is provided with and gos deep into the first hollow bulb upward or/and the fixed structure of the second hollow bulb, can significantly strengthen the supporting capacity of pumping plant base, strengthen the connection of pumping plant base and substrate, improve the globality of pumping plant base and substrate, overcome in prior art the deficiency causing by stone bolt or pressing plate fixed pump station base and substrate, effectively suppressed submersible pump unit, pumping plant base and whole pumping plant vibration and by the resonance of generation, can pumping plant be installed reliably, improve the stationarity of pumping station operation.
Further, the roof of the first step in the utility model is higher than the liquid sucting port of submersible pump unit, first step is not less than second step, can guide the fluid that enters pumping plant, avoid fluid directly to pour the liquid sucting port of submersible pump unit, coordinate energy dissipator, the fluid flow state that makes to enter liquid sucting port is even, has improved the runnability of submersible pump unit.
Further, the utility model arranges first step and second step by (1), has reduced imbibition hole bottom flat area; (2) roof by first step, by segment fluid flow lead second step and pump seat, washes away pump seat and near alluvial thereof; (3) be provided with anti-vortex device, for example clapboard also can prevent alluvial, has realized good self-cleaning function.
Further, the utility model is by first step is set, and by the roof guiding fluid of first step, avoids fluid directly to pour the liquid sucting port of submersible pump unit, and the fluid flow state that makes finally to flow into imbibition hole is even.
Further, the utility model is by inlet downstream, energy dissipator being set, and the energy of the fluid that enters pumping plant of dissipating, and guiding fluid is to first step coordinates with first step that to make finally to flow into the fluid flow state that imbibition cheats even.
By the explanation to preferred embodiment referring to accompanying drawing, above-mentioned and other objects, features and advantages of the present utility model will be more obvious.
Accompanying drawing explanation
Figure 1A is the perspective view of the utility model pumping plant base the first embodiment;
Figure 1B is the top view of Figure 1A;
Fig. 1 C is the sectional drawing of getting along A-A line in Figure 1B, and wherein first step roof is level;
Fig. 1 D is the sectional drawing of getting along A-A line in Figure 1B, and wherein first step roof is inclination;
Fig. 2 is the cross-sectional view of the utility model pumping plant base the second embodiment;
Fig. 3 A is the cross-sectional view of the utility model pumping plant base the 3rd embodiment;
Fig. 3 B is the top view of Fig. 3 A, mainly illustrates substrate and fixed structure;
Fig. 4 is the perspective view of the utility model pumping plant, for illustrating internal construction, only draws a part of cylindrical shell;
Fig. 5 is the top view of Fig. 4;
Fig. 6 is the sectional structure schematic diagram of the utility model pumping plant;
Fig. 7 represents to see from an angle perspective view that the utility model pumping plant, energy dissipator is connected with cylindrical shell;
Fig. 8 represents the perspective view that in the utility model pumping plant from another viewpoint, energy dissipator is connected with cylindrical shell.
Wherein, critical element symbol description is as follows:
The specific embodiment
To describe the specific embodiment of the present utility model in detail below.It should be noted that embodiment described herein, only for illustrating, is not limited to the utility model.Take prefabricated pumping plant base and prefabricated pumping plant below describes as example, but is not limited to prefabricated pumping plant base and prefabricated pumping plant, and pumping plant base and the pumping plant of the civil engineering structure of making in site are equally applicable to the utility model.
Prefabricated pumping plant base embodiment 1
As shown in Figure 1A, Figure 1B, Fig. 1 C and Fig. 1 D, prefabricated pumping plant base 1 first embodiment of the present utility model can be made by sheet material, for example, by glass epoxy or metal sheet, made.Prefabricated pumping plant base 1 first embodiment comprises base side wall 10, deflector, first step 11, second step 14 and imbibition hole 12.
The roof 111 of first step 11 is connected in base side wall 10 upper ends by welding or the connected mode such as one-body molded.The roof 111 of first step 11, sidewall 112 surround and form first hollow bulb 13 with first step 11 part base side wall 10 below.At least one perfusion of the first hollow bulb 13 connection portion, perfusion portion can be: be arranged on base side wall 10 and at least one first perfusing hole being communicated with the first hollow bulb 13, or be arranged on the roof 111 of first step 11 or sidewall 112 and at least one first perfusing hole being communicated with the first hollow bulb 13, or the intrusion pipe (not shown) that the inner other end of the first hollow bulb 13 is positioned at the first hollow bulb 13 outsides is led in one end, can adopt any existing filling concrete mode to pour in base.The number of the first hollow bulb 13 is not limited to one, can be separate a plurality of, having in a plurality of the first hollow bulb 13 situations, a plurality of the first perfusing holes should be set on base side wall 10, with respectively corresponding a plurality of the first hollow bulbs 13; Or a plurality of hollow bulbs inside is interconnected, be more conducive to concrete flowing in the first hollow bulb 13, be conducive to concrete and fully fill.The top seal of the first hollow bulb 13, bottom can be sealed, also can offer an opening 131, this opening 131 can be for coordinating with the substrate of being located under pumping plant base 1, concrete can be filled in this first hollow bulb 13 and then be combined with substrate, and the fixed structure on substrate also can insert this first hollow bulb 13 by opening 131.In the first hollow bulb 13 bottoms, are sealing in the situation thats, when fixed structure on substrate coordinates, can offer at the scene opening, or not offer in advance opening, and only rely on the fixed structure on substrate to wear opening.In addition, in some cases, prefabricated pumping plant does not need to be installed on substrate, now without in the first hollow bulb 13 bottoms, opening being set.
At fluid flow in the large or fast situation of flow velocity, the roof 111 of first step 11 can be level or slightly tilt; At flow, in the little or unhappy situation of flow velocity, the roof 111 of first step 11 can be also triangle or the rectangular shape that cuts an angle.
The roof 111 of first step 11 can tilt to both direction, also can tilt.For example, the roof 111 of first step 11 is tilted near prefabricated pumping plant base 1 center line one side higher than away from prefabricated pumping plant base 1 center line one side.In this kind of situation, for fear of direction of flow, acutely change, the angle of inclination can not be too large, conventionally 20 ° with interior be feasible.Again for example, as shown in Fig. 1 D, first step 11 roofs 111 are tilted near prefabricated pumping plant base 1 center line one side lower than away from prefabricated pumping plant base 1 center line one side.In this kind of situation, the angle of inclination of the roof 111 of first step 11 (angle of first step roof 111 and prefabricated pumping plant base side wall 10) a should meet: arctan (L/H) <a<90 °, wherein, H is the difference in height of first step 11 and second step 13, and L is the distance between the leftmost side of first step 11 and the leftmost side of second step 13.
The roof 111 of first step 11 can arrange the raised line that some rules distribute.First step 11 can play guide functions by convection cell.The first step 11 being obliquely installed or raised line can increase the mobile resistance of fluid, the energy of the fluid that is conducive to dissipate.
Imbibition is cheated 12 inner bottom parts and is provided with at least one anti-vortex device, and for example clapboard 121.Anti-vortex device is for improving the fluidised form uniformity that flows to the fluid in imbibition hole 12.The cross section of clapboard 121 can be triangle or arc, to strengthen its self-cleaning function.In addition, in the imbibition that approaches of the sidewall 112 of first step 11 and the sidewall 142 of second step 14, cheat 12 bottoms and be provided with anti-dead angle lead angle or anti-alluvial lead angle 123,124, the shape of anti-dead angle lead angle or anti-alluvial lead angle 123,124 can be for circular-arc.
Second step 14 comprises roof 141 and sidewall 142, and roof 141 is connected in base side wall 10 top ends by welding or the connected mode such as one-body molded, can with first step 11 positioned opposite.At this moment, imbibition hole 12 can be located between first step 11 and second step 14, and the imbibition hole 12 shown in figure is strip, but not as limit.Imbibition hole 12 can be various other shapes, depends primarily on the shape of the sidewall 112 of first step 11 and the sidewall 142 of second step 14.The height of the roof 141 of second step 14 is less than or equal to the height of the roof 111 of first step 11.In imbibition hole 12, be provided with anti-what bar 122 with base side wall 10 junctions, to prevent that the whats such as mud from amassing in this.In this first embodiment, as shown in Figure 1A～1C, base side wall 10 top ends are not in same level, and base side wall 10 connects first step 11 places higher than connecting second step 14 places; In addition, also can be as shown in Fig. 1 D, base side wall 10 top ends are in same level.The roof 141 of second step 14 and sidewall 142 surround and form the second hollow bulb 15 with second step 14 part base side wall 10 below.At least one perfusion of the second hollow bulb 15 connection portion, perfusion portion can be: be arranged on base side wall 10 and at least one second perfusing hole being communicated with the second hollow bulb 15, or be arranged on the roof 141 of second step 14 or sidewall 142 and at least one second perfusing hole being communicated with the second hollow bulb 15, or the intrusion pipe (not shown) that the inner other end of the second hollow bulb 15 is positioned at the second hollow bulb 15 outsides is led in one end.The number of the second hollow bulb 15 is not limited to one, can be separate a plurality of, having in a plurality of the second hollow bulb 15 situations, should be provided with a plurality of the second perfusing holes on base side wall 10, with respectively corresponding a plurality of the second hollow bulbs 15.A plurality of hollow bulbs inside can be interconnected, and is more conducive to concrete flowing in the second hollow bulb 15, is conducive to concrete and fully fills.The top seal of the second hollow bulb 15, bottom can be sealed, also can offer an opening 151, this opening 151 can coordinate with the substrate 9 of being located under pumping plant base 1, concrete can be filled in this second hollow bulb 15 and then be combined with substrate, and the fixed structure on substrate 9 also can insert this second hollow bulb 15 by opening 151.The opening 131 of the opening 151 of these the second hollow bulb 15 bottoms and the first hollow bulb 13 bottoms can be interconnected and form an opening, processes so convenient.In the second hollow bulb 15 bottoms, are sealing in the situation thats, when fixed structure on substrate coordinates, can offer at the scene opening, or not offer in advance opening, and only rely on the fixed structure on substrate to wear opening.In addition, in some cases, prefabricated pumping plant does not need to be installed on substrate, now without in the second hollow bulb 15 bottoms, opening being set.
Further, the prefabricated pumping plant base 1 of this first embodiment also comprises fastening devices, and fastening devices is located at second step 14 and is extended downward the second hollow bulb 15.Fastening devices can be several double-screw bolts 7 that are connected in second step 14.During the prefabricated pumping plant base 1 of on-the-spot installation, double-screw bolt 7 is embedded in concrete.The firmness being connected with concrete in order to increase second step 14, can be used L shaped double-screw bolt 7, or scene is bent into L shaped by the bottom of double-screw bolt 7.In several double-screw bolts 7, between at least a portion, be connected with reinforcing bar 8, welded reinforcement 8 between two adjacent double-screw bolts 7 for example, further to strengthen double-screw bolt 7 fixing firm degree in concrete.Several double-screw bolts 7 also can be divided at least one group, welded reinforcement 8 between the double-screw bolt 7 in every group.In this first embodiment, can, by double-screw bolt 7, the pump seat of submersible pump be for example installed on second step 14 from the pump seat that is coupled.
This first embodiment can have various deformation mode, and for example, the second hollow bulb 15 is connected with the first hollow bulb 13 and forms an annular hollow portion, and in this case, imbibition hole 12 can be arranged at the middle position of annular hollow portion.
This prefabricated pumping plant first embodiment, can form a prefabricated pumping plant jointly with the prefabricated structures such as cylindrical shell, also can coordinate with concrete barrel the pumping plant that forms half prefabricated half built on-site.
Prefabricated pumping plant base embodiment 2
As shown in Figure 2, the structure of prefabricated pumping plant base the second embodiment of the utility model and the first embodiment is basic identical, and difference is only: base side wall 10 extends upward formation wall extension, and the top ends of wall extension is positioned in same level.If at this moment the height of wall extension is enough high, it can be used as the barrel of prefabricated pumping plant.In addition, also can be at top ends welding or the one-body molded bell and spigot 16 that arranges of wall extension, bell and spigot 16 can be used for being connected with the barrel of prefabricated pumping plant.
Other structure of this prefabricated pumping plant base the second embodiment is identical with the first embodiment, repeats no more here.
Prefabricated pumping plant base embodiment 3
As shown in Figure 3 A and Figure 3 B, prefabricated pumping plant base the 3rd embodiment of the utility model, on the basis of the second embodiment, further comprises substrate 9 and at least one fixed structure 90.Substrate 9 can be made by steel concrete, but not as limit, it also can be made by materials such as metal or glass fiber reinforced plastic of other material.Substrate 9 can rounded or rectangle or other shape, and the area of the one side that substrate 9 contacts with ground is greater than the area of the one side that prefabricated pumping plant base contacts with ground.
At several double-screw bolts 7, be divided in many groups situation at least one fixed structure 90 and the interlaced layout of at least two group double-screw bolts 7.Between two groups of double-screw bolts 7, be provided with between 90, two fixed structures 90 of a fixed structure and be provided with one group of double-screw bolt 7.As shown in Figure 3 B, in the second hollow bulb 15, two groups of double-screw bolts 7 and two groups of interlaced layouts of fixed structure 90, at utmost to strengthen the installation firmness of prefabricated pumping plant base 1.Only having in one group of double-screw bolt 7 situation, this group double-screw bolt 7 can be inserted between two fixed structures 90.Double-screw bolt 7 is not limited to above-mentioned arrangement form with fixed structure, can be also non-interlaced arrangement form.
Prefabricated pumping plant base 1 of the present utility model, can be used for the pumping plant of various types of prefabricated pumping plants 100 and civil engineering structure.
Prefabricated pumping plant
As shown in Figure 4, Figure 5 and Figure 6, prefabricated pumping plant of the present utility model comprises base 1, cylindrical shell 2, at least one submersible pump unit 3 and energy dissipator 4.
Submersible pump unit 3 can adopt existing mode to be installed on prefabricated pumping plant base 1, for example, on second step 13, pump seat is installed, and as the pump seat that is certainly coupled, submersible pump 3 is installed in prefabricated pumping plant by pump seat.The liquid sucting port of submersible pump unit 3 is positioned at imbibition hole 12, and the liquid sucting port of submersible pump unit 3 is lower than 11 roofs of first step.In imbibition hole 12, corresponding to each submersible pump unit 3, be provided with an anti-vortex device, for example clapboard 121, the cross section of clapboard 121 can be leg-of-mutton, be conducive to prevent that in fluid, impurity remains on clapboard 121, improve self-cleaning property, certainly the cross section of clapboard 121 can be also other shape, is not limited to triangle.Clapboard 121 is one-body molded or be installed on prefabricated pumping plant base 1 in other existing mode with prefabricated pumping plant base 1.Clapboard 121 is positioned under the liquid sucting port of submersible pump unit 3, and the Main Current that is parallel to fluid to, clapboard 121 is for eliminating or reducing fluid 3 liquid sucting port places produce vortexs in submersible pump unit, and this place vortex easily causes submersible pump unit 3 generation cavitation, oscillation phenomenon or hydraulic performance declines etc.Therefore anti-vortex device is conducive to promote submersible pump unit 3 running stability.The shape of clapboard 121 also contributes to imbibition to cheat the automatically cleaning of 12 bottoms simultaneously.
The top of energy dissipator 4 is equal to or higher than inlet 21 tops, to prevent that inlet 21 inner fluids from directly dropping into imbibition hole 12 by energy dissipator 4 top overflows.Fluid directly drops into imbibition hole 12 and easily causes that imbibition cheats 12 inner fluids and produce vortexs, causes submersible pump unit air amount etc. and affects the even running of submersible pump unit.
The structure of energy dissipator 4 can be varied, and for example, energy dissipator 4 is vertical baffle, and the fluid impact that flows to prefabricated pumping plant by inlet, to vertical baffle, has consumed energy; Energy dissipator 4 can be also a sloping baffle, the top of sloping baffle is near cylindrical shell 2 center lines, bottom is away from cylindrical shell 2 center lines, fluid impact is to sloping baffle, except because of shock consumed energy, at fluid, flow downward in process, also can be subject to sloping baffle and stop, so sloping baffle can further consume the energy producing because of fluid gravity; Energy dissipator 4 can also be curved baffle, and curved baffle is protruding to cylindrical shell 2 centerline directions along inlet 21 centerline directions; Energy dissipator 4 can also comprise vertical board 41 and by vertical board 41 bottoms to the swash plate portion 42 of extending away from cylindrical shell 2 centerline directions.The said structure of energy dissipator 4 and shape be independent assortment mutually also.
In order to strengthen the structural strength of energy dissipator 4, can one or more reinforcing rib be set in the one side back to inlet 21 of energy dissipator 4, for example hollow section 43.
In order further to improve the effect of energy dissipation of energy dissipator 4, can be provided with many convex tendon (not shown)s in the one side in the face of inlet 21 of energy dissipator 4, many convex tendons are arranged in parallel or are criss-cross arranged, or with other any arranged in form.
As shown in Figure 7 and Figure 8, the connected mode of energy dissipator 4 in cylindrical shell 2 can be varied, and for example, energy dissipator 4 adopts identical material with cylindrical shell 2, and when making cylindrical shell 2, energy dissipator 4 is one-body molded with cylindrical shell 2; Again for example, energy dissipator 4 and cylindrical shell 2 can be also separate parts, and energy dissipator 4 is installed in cylindrical shell 2 by installation component.Installation component wherein can comprise one or more angle-shaped pieces 5 and several securing members.Angle-shaped piece 5 for example one side of angle steel with cylindrical shell 2 one-body molded or by securing member for example bolt or rivet be fixedly connected on cylindrical shell 2 inwalls, the another side of angle-shaped piece 5 is fixedly connected on energy dissipator 4 by bolt or rivet.Further, can be in the coated layer protective layer (not shown) in angle-shaped piece 5 and cylindrical shell 2 junctions, it is identical with cylindrical shell 2 materials that the material of topping is preferably, to strengthen sealing performance.
As shown in Figure 6, fluid enters prefabricated pumping plant by inlet 21, first strikes grid device 6; Strike again on the vertical board 41 of energy dissipator 4, along vertical board 41, strike swash plate portion 42 downwards; Along the Clearance Flow between swash plate portion 42 and swash plate portion 42 bottoms and first step 11, the guiding of the last roof 111 by first step 11 flows into imbibition hole 12 again, avoids directly entering the liquid sucting port of submersible pump 3.The mobile path of above-mentioned fluid is through multiple impact, and repeatedly changes direction, the large energy that dissipated, and the fluid energy that makes to flow to imbibition hole 12 is less, is conducive to fluidised form even.And, by inlet, the flow process medium velocity to imbibition hole 12 diminishes fluid gradually, the fluid flow state uniformity that has further strengthened submersible pump liquid sucting port place, prevents vortex and brings air into, for the submersible pump in prefabricated pumping plant is created good flow condition.Enter the flow velocity faster or slower of the fluid of prefabricated pumping plant, the fast fluid of flow velocity is back to the liquid sucting port that imbibition hole 12 enters submersible pump unit 3 after being directed to second step again, this process has also consumed fluid section energy, finally makes near 3 liquid sucting ports fluid flow state in submersible pump unit even.
Because (1) arranges first step and second step, reduced imbibition hole bottom flat area simultaneously; (2) roof by first step, by segment fluid flow lead second step and pump seat, washes away pump seat and near alluvial thereof; (3) be provided with anti-vortex device, for example clapboard also can prevent alluvial, and therefore, the utility model has been realized good self-cleaning function.
The prefabricated pumping plant of the utility model is not only applicable to sewage transport, and rainwater is carried, and the fields such as raw water such as lake water, river, surface water or underground water, the field that also need to carry fluid applicable to other.
The method that the prefabricated pumping plant of the utility model is installed comprises the steps:
At the scene that prefabricated pumping plant base 1 need to be installed, dig pit, make to cheat bottom flat, if necessary, at bottom, hole layer overlay, without stone boulder bed, use rammer compacter compacting.If sensitiveness ground, when carrying out compacting operation, must SC.
Lifting substrate 9 is in place, and substrate 9 must really be arranged on horizontal level, and notes direction and position.
The contact area of increase and pumping plant base 1 while building for following secondary, the upper surface that optionally dabbing cleaning contact with prefabricated pumping plant base 1.Substrate 9 also can field fabrication, for example, cement cast directly over to bottom, hole or cast directly on compacted lift, makes fixed structure 90 simultaneously.
Prefabricated pumping plant base 1 is placed on substrate 9, makes two fixed structures 90 on substrate 9 aim at respectively the first hollow bulb 13 and second hollow bulb 15 of prefabricated pumping plant base 1.
Respectively by the first perfusing hole and the second perfusing hole to the first hollow bulb 13 and the interior cement injection of the second hollow bulb 15.Like this, when theing cement solidifies, with the fixed structure 90 on metacoxal plate 9 and the double-screw bolt 7 of prefabricated pumping plant base 1, be just combined into a firmly overall structure, guaranteed the reliable installation of prefabricated pumping plant, and strengthened the globality of pumping plant base 1 and substrate 9, thoroughly eliminated the activity surplus between pumping plant base 1 and substrate 9, and for being installed, the double-screw bolt 7 of pump seat is in depth fixed on the concrete in hollow bulb, with fixed structure 90 actings in conjunction on substrate 9, increased significantly the stability of submersible pump unit, effectively suppressed submersible pump unit, the vibration of pumping plant base 1 and prefabricated pumping plant 9 and resonance, can move steadily in the long term.
In the utility model; by the hollow bulb cement injection in prefabricated pumping plant base 1, install; therefore can use sheet material to make prefabricated pumping plant base 1; and needn't as conventional art, use thick and heavy base; therefore the utility model is on the reliable basis of installing of the prefabricated pumping plant of protection; save a large amount of raw material, reduced cost.
Although described the utility model with reference to several exemplary embodiment, should be appreciated that term used is explanation and exemplary and nonrestrictive term.Because the utility model can specifically be implemented in a variety of forms and not depart from spirit or the essence of utility model, so be to be understood that, above-mentioned embodiment is not limited to any aforesaid details, and explain widely in the spirit and scope that should limit in the claim of enclosing, therefore fall into whole variations in claim or its equivalent scope and remodeling and all should be the claim of enclosing and contain.
Claims (17)
1. a pumping plant base (1), is characterized in that, described pumping plant base (1) comprises at least one hollow bulb (13), and described hollow bulb (13) is provided with at least one for the perfusion portion of perfusion filler in described hollow bulb (13).
2. pumping plant base as claimed in claim 1 (1), is characterized in that, described pumping plant base (1) also comprises:
Base side wall (10);
At least one step (11,14), described step (11,14) comprises roof (111,141) and sidewall (112,142), described roof (111,141) is connected in described base side wall (10);
The roof (111,141) of described step (11,14) and the sidewall (112,142) of step (11,14) surround and form described hollow bulb (13) with step (11,14) part base side wall (10) below.
3. pumping plant base as claimed in claim 2 (1), it is characterized in that, described pumping plant base (1) comprises first step (11) and second step (14), described first step (11) comprises roof (111) and sidewall (112), and described roof (111) is connected in described base side wall (10); Described second step (14) comprises roof (141) and sidewall (142), and described roof (141) is connected in described base side wall (10), and described at least one hollow bulb (13,15) comprises the first hollow bulb (13) and the second hollow bulb (15);
Described the first hollow bulb (13) is surrounded and forms with first step (11) part base side wall (10) below by the roof (111) of described first step (11) and the sidewall (112) of first step (11);
Described the second hollow bulb (15) is surrounded and forms with second step (14) part base side wall (10) below by the roof (141) of described second step (14) and the sidewall (142) of second step (14);
Described the first hollow bulb (13) and the second hollow bulb (15) are connected with at least one perfusion portion separately.
4. pumping plant base as claimed in claim 3 (1), is characterized in that, described first step (11) is not less than described second step (14).
5. pumping plant base as claimed in claim 4 (1), is characterized in that, described pumping plant base (1) also comprises:
Base side wall (10);
Described first step (11) comprises roof (111) and sidewall (112), and described roof (111) is connected in described base side wall (10); Described second step (14) comprises roof (141) and sidewall (142), and described roof (141) is connected in described base side wall (10), and described at least one hollow bulb (13,15) comprises the first hollow bulb (13) and the second hollow bulb (15);
Described the first hollow bulb (13) is surrounded and forms with first step (11) part base side wall (10) below by the roof (111) of described first step (11) and the sidewall (112) of first step (11);
Described the second hollow bulb (15) is surrounded and forms with second step (14) part base side wall (10) below by the roof (141) of described second step (14) and the sidewall (142) of second step (14);
Fastening devices (70), is located at second step (14);
Described fastening devices (70) comprises and is connected in several double-screw bolts (7) described second step (14) and that extend downward described the second hollow bulb (15).
6. pumping plant base as claimed in claim 5 (1), is characterized in that, described several double-screw bolts (7) are divided at least one group, is connected with reinforcing bar (8) in every group between at least a portion.
7. pumping plant base as claimed in claim 2 (1), is characterized in that, described base side wall (10) extends upward and forms wall extension (101), and the top ends of described wall extension (101) is positioned in same level.
8. pumping plant base as claimed in claim 7 (1), is characterized in that, described wall extension (101) top ends is provided with bell and spigot (16).
9. pumping plant base as claimed in claim 2 (1), is characterized in that, described base side wall (10) bottom has to the root edge (17) of the interior direction of described base side wall (10) and/or direction bending outside described base side wall (10).
10. pumping plant base as claimed in claim 1 (1), it is characterized in that, described perfusion portion is selected from: be arranged at least one hollow bulb (13,15) surface and with described at least one hollow bulb (13,15) at least one perfusing hole being communicated with, or one end is led to the inner other end of described at least one hollow bulb (13,15) and is positioned at the outside intrusion pipe of described at least one hollow bulb (13,15).
11. pumping plant bases as claimed in claim 2 (1), it is characterized in that, described perfusion portion is selected from: be arranged on base side wall (10) upper and with described at least one hollow bulb (13, 15) at least one perfusing hole being communicated with, or be arranged at least one step (11, 14) roof (111, 141) or sidewall (112, 142) upper and with described at least one hollow bulb (13, 15) at least one perfusing hole being communicated with, or described at least one hollow bulb (13 is led in one end, 15) the inner other end is positioned at described at least one hollow bulb (13, 15) outside intrusion pipe.
12. pumping plant bases as claimed in claim 1 (1), is characterized in that, described pumping plant base (1) also comprises:
Substrate (9);
At least one fixed structure (90), is located at described substrate (9) upper, and described fixed structure (90) comprises the many reinforcing bars (91) that arrange upward, and described at least one fixed structure (90) is convex to be stretched in described at least one hollow bulb (13,15).
13. pumping plant bases as claimed in claim 12 (1), is characterized in that, described pumping plant base (1) comprises base side wall (10), first step (11) and second step (14),
Described first step (11) comprises roof (111) and sidewall (112), and described roof (111) is connected in described base side wall (10); The roof (111) of described first step (11) and the sidewall (112) of first step surround and form at least one first hollow bulb (13) with first step (11) part base side wall (10) below;
Described second step (14) comprises roof (141) and sidewall (142), and described roof (141) is connected in described base side wall (10); The roof (141) of described second step (14) and the sidewall (142) of second step (14) surround and form at least one second hollow bulb (15) with second step (14) part base side wall (10) below; Described second step (14) is connected with several double-screw bolts (7), and described double-screw bolt (7) extends downward described the second hollow bulb (15), and described several double-screw bolts (7) are divided at least one group, is connected with reinforcing bar (8) in every group between at least a portion; Described at least one fixed structure (90) and the upper and lower interlaced arrangement of at least one group of double-screw bolt (7).
14. 1 kinds of pumping plants (100), comprise base (1), be arranged at cylindrical shell (2) and at least one submersible pump unit (3) on described base (1), described cylindrical shell (2) is provided with at least one inlet (21), it is characterized in that, described base (1) is the pumping plant base (1) as described in any one in claim 3～6,13.
15. pumping plants as claimed in claim 14 (100), it is characterized in that, described pumping plant (100) also comprises energy dissipator (4), described energy dissipator (4) is located at described at least one step (11,14) top, and the roof of step that described energy dissipator (4) is set is higher than the liquid sucting port of described submersible pump unit (3).
16. pumping plants as claimed in claim 15 (100), is characterized in that, described energy dissipator (4) bottom and the flow area that flow area between the roof of step of described energy dissipator (4) is more than or equal to described inlet (21) is set.
17. 1 kinds of pumping plants (100), comprise base (1), be arranged at cylindrical shell (2) and at least one submersible pump unit (3) on described base (1), described cylindrical shell (2) is provided with at least one inlet (21), it is characterized in that, described base (1) is the pumping plant base (1) as described in any one in claim 1,2,7-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320396816.1U CN203475593U (en) | 2013-07-04 | 2013-07-04 | Pump station base and pump station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320396816.1U CN203475593U (en) | 2013-07-04 | 2013-07-04 | Pump station base and pump station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203475593U true CN203475593U (en) | 2014-03-12 |
Family
ID=50223948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320396816.1U Expired - Lifetime CN203475593U (en) | 2013-07-04 | 2013-07-04 | Pump station base and pump station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203475593U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105479252A (en) * | 2016-01-31 | 2016-04-13 | 苏州帝瀚环保科技股份有限公司 | Chip removal machine for machine tools |
| CN105479253A (en) * | 2016-01-31 | 2016-04-13 | 苏州帝瀚环保科技股份有限公司 | Chip removal groove for machine tools |
-
2013
- 2013-07-04 CN CN201320396816.1U patent/CN203475593U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105479252A (en) * | 2016-01-31 | 2016-04-13 | 苏州帝瀚环保科技股份有限公司 | Chip removal machine for machine tools |
| CN105479253A (en) * | 2016-01-31 | 2016-04-13 | 苏州帝瀚环保科技股份有限公司 | Chip removal groove for machine tools |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104278738B (en) | The installation method of pumping plant base, pumping plant and pumping plant | |
| CN203498998U (en) | PPS (Prefabricated Pump Station) | |
| CN100557140C (en) | Wave breaker of inverse T shaped pipe wall pile | |
| CN203475593U (en) | Pump station base and pump station | |
| CN203429781U (en) | Pump station base and pump station | |
| CN210341970U (en) | Installation foundation assembly for offshore wind turbine generator system | |
| CN104278739B (en) | Prefabricated pumping station system | |
| CN203514501U (en) | Prefabricated pump station | |
| CN104278740B (en) | Prefabricated pumping plant | |
| CN109797768A (en) | Flow-disturbing energy consumption protection against erosion open caisson and construction method | |
| CN110005144B (en) | Drainage vertical pipe structure suitable for upper cover development and setting method thereof | |
| CN208633120U (en) | A kind of pattern foundation pit supporting structure assembled concrete-filled rectangular steel tube diagonal brace | |
| CN201850539U (en) | Large-well variable-cross-section restricted-orifice surge chamber for water supply system of hydropower station | |
| CN204282315U (en) | A kind of absorption basin discharge structure | |
| CN206448367U (en) | Z-shaped steel pipe concrete profiled pile and with steel beam connecting joint structure | |
| CN108951657A (en) | A kind of pattern foundation pit supporting structure assembled concrete-filled rectangular steel tube diagonal brace | |
| CN215715381U (en) | Prefabricated ground of high water level stratum is wall guide wall even | |
| CN203334419U (en) | Pump station system | |
| CN210459271U (en) | Fan jacket structure for offshore wind power | |
| CN209011286U (en) | A kind of integrated pump station energy dissipator | |
| CN107587517A (en) | A kind of deep foundation pit precipitation recycle device and its application method based on BIM | |
| CN208949894U (en) | A kind of foundation pit construction support device | |
| CN206158010U (en) | High -strength steel superstrong combination column structure of high -strength grouting material | |
| CN203429777U (en) | Water distribution unit | |
| CN219430822U (en) | Retaining wall |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140312 |
|
| CX01 | Expiry of patent term |