KR20180099854A - Prefabricated pump station unit and water distribution unit - Google Patents

Abstract

The present invention provides a prefabricated pump station unit and a water distribution unit. The prefabricated pump station unit includes a prefabricated hollow pump station body, a liquid inlet connected to the pump station body, and a well tube installed in the pump station body. The circumference of the cross section of the upper end portion of the pump station body is larger than the circumference of the cross section of the lower end portion. In the prefabricated pump station apparatus of the present invention, the pump station body has a large upper portion and a small lower portion, and when the fluid flows into the pump station body through the liquid inlet, the fluid gradually flows along the inner wall of the pump station toward the center of the pump station body The fluid energy is consumed and the fluid flow state is homogenized uniformly, so that the state of the fluid flowing into the inlet of the underwater pump is uniform, the water inflow state of the underwater pump is good and the stability of the operation of the underwater pump is improved.

Description

Prefabricated pump station unit and water distribution unit

The present invention relates generally to pump stations for transporting liquids, and more particularly to prefabricated pump station units and water distribution units.

As city construction progresses, urban rainwater and sewage increase, there are various kinds of sewage treatment equipment, and pump station is one of them.

U.S. Patent Application Publication No. 20080011372 discloses a prefabricated pump station unit comprising a bottom, a sealing wall secured to the bottom, and a plurality of submerged pumps mounted within the sealing wall. On the sealing wall there are a liquid inlet and a liquid outlet. Because of the power provided by the submerged pump, the fluid enters the prefabricated pump station from the liquid inlet and exits through the liquid outlet. Due to heavy rain and other reasons, the amount of fluid flowing to the prefabricated pump station unit is sometimes very large, and the flow velocity is very fast. Therefore, the fluid is accompanied by a large amount of energy, and it is easy to generate an undesirable operating environment for the submersible pump, especially when the submerged pump, especially the suction port of the submerged pump, is hit directly, for example, a vortex occurs near the suction port, Air may be introduced to cause cavaitation or vibration, and as a result, the performance of an underwater pump may be deteriorated. To solve this problem, a baffle apparatus is disposed adjacent to the liquid inlet inside the closed wall of the assembled pump station unit, a plurality of liquid discharge ports are disposed at the bottom of the baffle apparatus, and a plurality of liquid dispensing ports And corresponds to a plurality of underwater pumps, respectively. The fluid introduced into the closed wall from the inlet port is divided into a plurality of sections by the baffle device, and each section flows to the inlet of the corresponding submerged pump and through the corresponding liquid distribution port, do.

The technical solution of the U.S. patent application is that the fluid force can be consumed to some extent by the baffle device but the fluid state becomes highly uneven after passing through the plurality of liquid distribution ports of the baffle device and there is a large amount of turbulence, , The United States patent application is deficient in improving fluid flow conditions.

The foregoing information disclosed in the background section is only intended to improve understanding of the background of the present invention and therefore may include information that does not constitute prior art known to those of ordinary skill in the art.

U.S. Patent Application Publication No. 2008 / 0011372A, Jan. 17, 2008

It is an object of the present invention to provide a prefabricated pump station unit which overcomes the above-described drawbacks of the prior art and has a good flow guide function, makes the flow state of the fluid flowing into the inlet of the underwater pump uniform, And improves the stability of the operation of the underwater pump.

Yet another object of the present invention is to provide a prefabricated pump station unit which is light and easy to carry.

It is another object of the present invention to provide a prefabricated pump station unit having a small floor area.

It is still another object of the present invention to provide a prefabricated pump station unit that can be installed with a high flow axial flow pump or a mixed flow pump.

Still another object of the present invention is to provide a prefabricated pump station unit that is easy to assemble.

It is still another object of the present invention to provide a water distribution unit provided with the assembled pump station unit of the present invention.

According to an aspect of the invention, there is provided a prefabricated pump station unit comprising a prefabricated hollow pump station body, a liquid inlet and a liquid outlet connected to the pump station body, and a well tube disposed within the pump station body, . The circumference of the cross section of the upper end of the pump station body is larger than the circumference of the cross section of the lower end thereof. In the prefabricated pump station unit of the present invention, the pump station body includes a hollow-forming pump station body, and the circumference of the cross section of the upper end of the pump station body is larger than the circumference of the cross section of its lower end, And the lower portion of the pump station is small so that as the flow of the wafers flows into the pump station body from the liquid inlet, the fluid gradually collects along the inner wall of the pump station toward the center of the pump station body, The flow conditions are homogenized uniformly, making the fluid entering the inlet of the underwater pump uniform, creating a good liquid intake for the underwater pump, and improving the stability of the underwater pump operation. At the same time, since the prefabricated pump station unit of the present invention is of the prefabricated structure, the construction period can be greatly shortened, lightweight, easy to transport, simple in structure and inexpensive.

According to an embodiment of the present invention, the pump station body includes a first tube portion and a tapered portion connected to a lower end portion of the first tube portion, the sectional dimension of the tapered portion gradually decreasing from the upper portion to the lower portion, An inlet is provided in the first tube portion.

According to an embodiment of the present invention, the center line of the first tube portion and the taper portion coincide with each other.

According to an embodiment of the present invention, the first tube portion is a cylindrical cylinder, and the tapered portion is a conical cylinder.

According to an embodiment of the present invention, the cone angle of the conical cylinder is in the range of 15 to 50 degrees.

According to an embodiment of the present invention, the lower edge of the liquid inlet is adjacent to or at the same height as the upper edge of the tapered portion.

According to an embodiment of the present invention, the assembled pump station unit further includes a first grill device, wherein the first grill device is mounted at a lower end of the first pipe portion; Or the middle or upper portion of the tapered portion; Or at the end of the liquid inlet.

According to an embodiment of the present invention, the assembled pump station unit further includes an underwater pump disposed in the well pipe, and the underwater pump is an axial flow pump, a mixed flow pump, or a cross flow pump.

According to one embodiment of the present invention, the prefabricated pump station unit further comprises a pump base, the pump base being mounted to the pump station body and disposed below the well tube, And the underwater pump is mounted on the pump base.

According to one embodiment of the present invention, the pump base includes a bottom plate, a flow guide fixed to the center position of the bottom plate, and at least two flow dividers fixed to the bottom plate and the flow guide, The at least two flow dividing portions are uniformly distributed in the circumferential direction of the flow guide portion.

According to an embodiment of the present invention, the pump base further comprises at least two supports fixed to the bottom plate, the height of the support being higher than the flow guide and the flow dividing part, and the height of the at least two supports A prefabricated pump station unit with a flange secured to the top.

According to an embodiment of the present invention, the well tube is arranged coaxially with the pump station body inside the pump station body.

According to an embodiment of the present invention, the pump station body further includes a second tube portion, the cross-sectional dimension of the second tube portion is smaller than the first tube portion, and the second tube portion is connected to the lower end of the taper portion.

According to an embodiment of the present invention, the first tube portion and the second tube portion are both cylindrical cylinders, and the tapered portion is a conical cylinder, and the three center lines coincide with each other.

According to an embodiment of the present invention, at least one fixing plate is provided between the well tube and the tapered portion and / or the second tube portion.

According to another aspect of the present invention, there is provided a water distribution unit comprising a water tank having a liquid inlet. The water distribution unit further includes at least one prefabricated pump station unit each comprising a tapered portion, a well tube, a submerged pump and a liquid outlet, wherein the tapered portion is fixed to the outer bottom of the water tank Wherein the tapered portion gradually decreases from an upper portion to a lower portion, the well pipe is disposed in the tapered portion and extends upwardly of the water tank, the liquid outlet is connected to the well pipe, And the submerged pump is disposed in the well tube.

According to an embodiment of the present invention, the assembled pump station unit further includes a second pipe portion connected to the tapered portion.

According to one embodiment of the present invention, the water tank is a prefabricated water tank or civil engineering structure; And / or said water tank has a rectangular, circular or elliptical cross-sectional shape; And / or the water tank is arranged horizontally.

According to an embodiment of the present invention, the pump station body includes an outer tube portion and an inner tube portion, the outer tube portion including a bottom of the outer tube portion and an outer peripheral wall disposed on the bottom of the outer tube portion; Wherein the inner pipe portion includes an inner peripheral wall and an upper end portion of the inner pipe portion is open and an upper end portion of the inner pipe portion penetrates the bottom of the outer pipe portion and is located inside the outer pipe portion, ; A portion of the inner peripheral wall, a portion of the outer peripheral wall, and a bottom of the outer peripheral portion together form a circulation space, and the liquid inlet (10) is mounted on the outer peripheral wall.

According to one embodiment of the present invention, the inner tube portion further includes the inner tube bottom, and the inner tube bottom is integrally formed at the lower end portion of the inner peripheral wall or is sealed and fixed to the lower end of the inner peripheral wall.

According to an embodiment of the present invention, the center line of the outer tube portion and the inner tube portion coincide with each other.

According to an embodiment of the present invention, the inner tube portion and the outer tube portion are both cylindrical cylinders, and the inner tube portion has a sectional dimension smaller than the sectional dimension of the outer tube portion.

According to an embodiment of the present invention, the inner tube portion is a conical cylinder having a large diameter end and a small diameter end, and the large diameter end of the inner tube portion is located inside the outer tube portion.

According to an embodiment of the present invention, the portion of the inner tube portion located inside the outer tube portion has a conical shape.

According to an embodiment of the present invention, the lower edge of the liquid inlet is not higher than the upper edge of the inner peripheral wall.

According to one embodiment of the present invention, the lower edge of the liquid inlet is adjacent to or at the same height as the lower portion of the outer tube portion.

According to an embodiment of the present invention, a portion of the inner peripheral wall located inside the outer tube portion is formed with a grill hole communicating the inner space of the inner tube portion and the circulation space.

According to an embodiment of the present invention, the grill hole is disposed adjacent to the lower portion of the outer tube portion.

According to an embodiment of the present invention, the grill hole is disposed at the position of the inner circumferential wall which is away from the inner circumferential wall facing the liquid inlet.

According to one embodiment of the present invention, the assembled pump station unit further comprises a grill device, wherein the grill device is mounted at the end of the liquid inlet; Or the grilling device is mounted on the upper end of the inner peripheral wall of the inner pipe portion.

According to one embodiment of the present invention, the inner pipe portion includes a plurality of sub-inner pipe portions connected in series, and / or the outer pipe portion includes a plurality of sub-outer pipe portions connected in series.

According to an embodiment of the present invention, the well tube is arranged coaxially with the pump station body inside the pump station body.

According to an embodiment of the present invention, the height H1 of the portion of the outer tube portion outside the inner tube portion and the diameter D of the well tube satisfy: H1 = (2-5) D.

According to one embodiment of the present invention, the assembled pump station unit further comprises an underwater pump disposed in the well tube.

According to an embodiment of the present invention, the submerged pump is an axial flow pump or a mixed flow pump.

According to an embodiment of the present invention, the assembled pump station unit further includes a pump base installed in the pump station body, and the underwater pump is mounted on the pump base.

According to an embodiment of the present invention, the pump base includes a flow guide fixed to a center position of the bottom plate, and at least two flow dividers fixed to the bottom plate, The portion extends in the circumferential direction of the flow guide portion.

According to an embodiment of the present invention, the pump base further includes at least two support portions fixed to the bottom plate, the height of the support portion being higher than the flow guide portion and the flow dividing portion, And is fixed to the upper portion of the two supports.

According to one embodiment of the present invention, the water distribution unit comprises a water tank having a liquid inlet, wherein the water distribution unit further comprises at least one prefabricated pump station sub-unit, each of the prefabricated pump station sub- Wherein the inner tube portion is fixed to a lower portion of the water tank, the upper end portion of the inner tube portion is opened and protruded into the water tank, and the well tube is disposed on the inner tube portion And the liquid outlet extends to the outside of the upper opening of the inner pipe portion, and the liquid outlet extends to the outside of the water tank in communication with the well pipe.

According to one embodiment of the present invention, the water distribution unit further comprises an underwater pump disposed inside the well tube.

According to one embodiment of the present invention, the water tank is a prefabricated water tank or civil engineering structure; And / or said water tank has a rectangular, circular or elliptical cross-sectional shape; And / or the water tank is arranged horizontally.

According to one embodiment of the present invention, the well tube is a split structure including a lower tube portion and an upper tube portion connected to the lower tube portion; The prefabricated pump station unit further includes at least two fixed plates uniformly disposed in the circumferential direction, and the lower cylindrical portion is fixed to the pump station body by at least two fixed plates. The weight of the divided lower tube portion or the upper tube portion is greatly reduced as compared with the entire well tube, and the handling is convenient, The lower tubular portion is easily aligned with the pump base and the outlet pipe of the upper tubular portion is in fluid communication with the liquid on the pump station body, It is easily aligned with the outlet and therefore the assembly of the prefabricated pump station unit of the present invention is very convenient. In addition, in the present invention, the lower tubular portion is fixed to the pump station body by at least two fastening plates, while the fastening is relatively rigid, while the fastening plate has a circulation space between the lower tubular portion and the pump station body Separating to form multiple flow channels and directing the liquid to flow along each flow channel, which is advantageous for eliminating turbulence and homogenizing fluid flow conditions, and the impingement of the fluid on the fixation plate also results in a large amount of kinetic energy And is useful for reducing the vibration and noise of the underwater pump by providing a uniform fluid to the suction port of the underwater pump.

According to an embodiment of the present invention, the upper tube portion is detachably coupled to the lower tube portion. If maintenance is required, the upper tubular portion may be removed to increase the working space of the pump station; It is also possible to replace one of the upper tube portion and the lower tube portion and to maintain other undamaged portions if replacement is required, which helps to reduce costs.

According to an embodiment of the present invention, the outlet pipe is integrally formed or fixedly coupled with the upper tubular portion.

According to an embodiment of the present invention, at least two outer surfaces of the fixing plate are fixed to the pump station body, and a lower end thereof is flush with the lower end surface of the pump station body, . The lower tube portion is fixed to at least two of the inner surfaces of the fixing plate.

According to one embodiment of the present invention, the pump base is disposed at the lower portion of the lower tube portion and is fixed to at least two inner surfaces of the fixing plate.

According to one embodiment of the present invention, sealing elements are provided in the gap between the fixed plate and the pump base, so that at least two of the fixed plates are spaced at least two mutually isolated spaces between the lower tube portion and the pump station body Of independent flow channels, the pump base providing a channel corresponding to each of the independent flow channels. Since the gap between the fixed plate and the pump base is sealed by the sealing element, when the fluid passes, it prevents the debris such as the rope head and the tape from winding around the pump base when passing through the gap.

According to one embodiment of the present invention, the pump station body comprises a first tubular portion having a larger diameter, a tapered portion connected to the first tubular portion and having a gradually decreasing diameter, and a smaller And a second tube portion having a diameter, wherein the tapered portion is fixed by an auxiliary support.

According to one embodiment of the present invention, a flexible joint is disposed between the liquid outlet and the outlet pipe. The flexible joint not only makes it very convenient to connect the outlet pipe of the upper tube portion to the liquid outlet of the pump station body, but also reduces the difficulty of aligning the outlet pipe of the upper tube portion with the liquid outlet of the pump station body. The connection can be made even if there is some deviation between the two positions.

These and other objects, features and advantages of the present invention will become more apparent from the description of the preferred embodiments.

In the prefabricated pump station apparatus of the present invention, the pump station body has a large upper portion and a small lower portion, and when the fluid flows into the pump station body through the liquid inlet, the fluid gradually flows along the inner wall of the pump station toward the center of the pump station body The fluid energy is consumed and the fluid flow state is homogenized homogeneously, the fluid flow state entering the inlet of the underwater pump is uniform, so that the water inflow state of the underwater pump is good and the stability of the operation of the underwater pump can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view schematically showing the structure of a first embodiment of a prefabricated pump station unit of the present invention. Fig.
Fig. 2 is a longitudinal sectional view of Fig. 1; Fig.
3 is a plan view of Fig.
4 is a view schematically showing the structure of a first grill apparatus of the assembled pump station unit of FIG.
5 is a view schematically showing the structure of a pump base of the assembled pump station unit according to the first embodiment of the present invention.
Fig. 6 is a plan view of Fig. 5. Fig.
7 is a sectional view partially showing the structure of the first embodiment of the assembled pump station unit of the present invention.
8 is a left side view of Fig.
Fig. 9 is a plan view of Fig. 7. Fig.
10 is a perspective view showing a first embodiment of the water distribution unit of the present invention.
11 is a front view showing the structure of the water distribution unit shown in Fig.
12 is a sectional view partially showing the structure of the third embodiment of the assembled pump station unit of the present invention.
13 is a right side view of Fig.
14 is a plan view of Fig.
Fig. 15 is a perspective view showing the structure of the assembled pump station unit of Fig. 12, in which only a part of the external appearance part and the liquid inlet structure are shown for clearly showing the internal structure.
16 is a sectional view partially showing the structure of the fourth embodiment of the assembled pump station unit of the present invention.
17 is a sectional view partially showing the structure of the fifth embodiment of the assembled pump station unit of the present invention.
18 is a perspective view showing a second embodiment of the water distribution unit of the present invention, in which only a part of the tank structure is shown for clearly showing the internal structure.
19 is a partial cross-sectional front view of Fig.
20 is a plan view of Fig.
21 is a right side view of Fig.
Fig. 22 is a perspective view showing a third embodiment of the water distribution unit of the present invention, in which only a part of the tank structure is shown for clearly showing the internal structure. Fig.
23 is a partial cross-sectional front view of Fig.
24 is a view schematically showing the simulated flow state of the water flow in the circulation space of the assembled pump station unit.
25 schematically shows a simulated flow of water flow at the inlet of an underwater pump of a prefabricated pump station unit of the present invention.
26A is an exploded perspective view of a sixth embodiment of the assembled pump station unit of the present invention.
Fig. 26B is an assembled perspective view of the assembled pump station unit shown in Fig. 26A, in which the upper cover is not shown.
26C is an enlarged view of a portion M of FIG. 26B.
Fig. 26D is a cross-sectional view taken along the line AA in Fig. 26B. Fig.
27A is an exploded perspective view showing the pump station body and the top sealed by the seal ring in the assembled pump station unit shown in Fig. 26A.
27B is an enlarged view of a portion P in Fig.
Figure 27c is an assembled perspective view showing the top cover and pump station body sealed by the seal ring in the assembled pump station unit shown in Figure 26a.
FIG. 28A is a perspective view showing the gate valve of the assembled pump station unit shown in FIG. 26A. FIG.
FIG. 28B is a front view showing the gate valve of FIG. 28A. FIG.
28C is a right side view of Fig. 28B.
Fig. 28D is a bottom view of Fig. 28B.
Fig. 28E is a plan view of Fig. 28B.
29A is a perspective view showing a structure of a basket grille of the assembled pump station unit shown in FIG. 26A.
FIG. 29B is a front view showing the basket grill shown in FIG. 29A. FIG.
FIG. 29C is a right side view of FIG. 29B.
FIG. 29D is a bottom view of FIG. 29B.
Fig. 29E is a plan view of Fig. 29B.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments will convey to those skilled in the art the concept of exemplary embodiments so that the invention may be practiced in a comprehensive and complete manner. In the drawings, the same reference numerals denote the same or similar components, and a detailed description thereof will be omitted.

Hereinafter, specific examples of the present invention will be described in detail. It should be noted that the embodiments described herein are for illustrative purposes only and are not intended to limit the present invention.

The inventive concept of the prefabricated pump station unit of the present invention improves the shape of the pump station body so that the circumference of the cross section of the upper end of the pump station body, for example, And the lower part of the pump station body is improved to improve the fluid flow condition at the inlet of the submersible pump so that the fluid flow at the inlet of the submersible pump is stable and uniform and makes good water inflow conditions of the underwater pump, .

First embodiment of the assembled pump station unit

1 is a longitudinal sectional view of the first embodiment of the prefabricated pump station unit according to the present invention, Fig. 2 is a longitudinal sectional view of Fig. 1, Fig. 3 is a plan view of Fig. to be. 1 to 3, an embodiment of the prefabricated pump station unit of the present invention mainly includes a pump station body 1 in a hollow form, a well tube 2, and an underwater pump 3. The liquid inlet 10 is mounted to the pump station body 1 and the liquid flows into the pump station body 1 through the liquid inlet 10. The well pipe 2 is mounted on the pump station body 1. Preferably, the pump station body 1 is coaxially mounted with the pump station body 1, and the well tube 2 is provided with a liquid outlet 20. The underwater pump 3 may be installed at a lower portion of the well pipe 2 and the underwater pump 3 may be an axial flow pump. However, the present invention is not limited thereto, and other types of pumps such as a centrifugal pump, A pump may also be applied to the present invention. The fluid flowing into the pump station body 1 is discharged from the pump station body 1 through the liquid outlet 20 due to the periodic force of the underwater pump 3. [

In a first embodiment of the prefabricated pump station unit, the pump station body 1 comprises a first tube portion 11 and a tapered portion 12. The first tube portion 11 may be a cylindrical cylinder, but the present invention is not limited thereto, but may be a cylinder having an elliptical or polygonal cross-section, and the first tube portion 11 may be an irregular closed It is also possible to design a cylinder shape having a ring-shaped cross section. The cross-sectional dimension of the tapered portion 12 gradually decreases from the upper end to the lower end. The tapered portion 12 can be, for example, a conical cylinder, and the large diameter end is fixedly coupled to the lower end of the first tube portion 11, and the taper angle? Of the conical cylinder is 25 占. Of course, the taper angle? Is not limited to 25 degrees. The taper angle? Can be appropriately adjusted according to factors such as the size of the pump station body 1 and the fluid flow rate of the liquid inlet 10, and generally the taper angle? Is 15 to 50 but preferably 20 To 40 [deg.]. Likewise, the tapered portion 12 is not limited to a cone, but may be a conical shape having a different cross-sectional shape, and may be applied to the present invention if the conical structure is such that the cross-sectional dimension gradually decreases from the upper end to the lower end.

As shown in Figs. 1 and 3, the four fixing plates 23 are uniformly arranged in the circumferential direction between the well pipe 2 and the tapered portion 12, and one side of the fixing plate 23 is connected to the well pipe 2 and the other side is fixed to the tapered portion 12 to fix the well tube 2 and the tapered portion 12 integrally. The number of the fixing plates 23 is not limited to four but may be suitably increased or decreased according to the size of the pump station body 1 and the overall design of the system. The function of the fixing plate 23 is to fix the well tube 2 and the tapered portion 12 and the fixing plate 23 has a function of uniformly distributing the fluid and the fluid in the first tube portion 11 is tapered Can be more evenly divided by the portion (12). Further, the fixing plate 23 can prevent the fluid flowing to the first tube portion 11 through the liquid inlet 10 from forming a vortex while the fluid flows down, thereby contributing to homogenization of the fluid flow state.

In the embodiment shown in Fig. 3, the pump station body 1 is constituted by a combination of a cylindrical first tube portion 11 and a conical tapered portion 12. The present invention is not limited thereto. The pump station body 1 applied in the present invention can be formed by freely engaging and sealing the first tube portion 11 and the arbitrary-shaped taper portion 12 of an arbitrary shape have. In the embodiment shown in FIG. 3, the centerline of the cylindrical first tube portion 11 and the conical tapered portion 12 coincide, but in other embodiments the two centerlines may not coincide and may have a constant portion deviation , Which can be applied in special cases where space is limited.

The fluid having a constant kinetic energy flows into the first tube portion 11 through the liquid inlet 10 and comes into contact with the inner wall of the first tube portion 11 and with the liquid inside the first tube portion 11 or with the inner wall of the first tube portion 11 So that a part of the kinetic energy is dissipated and the flow state is adjusted to some extent and becomes uniform while the fluid flows along the inner wall of the first tube portion 11. [ Next, the fluid flows downward along the inner wall of the tapered portion 12, the inner wall of the tapered portion 12 tapers toward its center, optimizes the flow and increases the flow velocity, And the fluid flow in the circumferential direction when the fluid reaches the bottom of the tapered portion 12 is very uniform and stable and thus produces a smooth, uniform and stable fluid at the inlet of the central underwater pump 3 .

The position of the liquid inlet 10 on the first tube portion 11 may be as close as possible to the tapered portion 12 and the bottom edge of the liquid inlet 10 may be located as close as possible to the tapered portion 12 ) Or coplanar with the top edge of the tapered portion 12, which helps to reduce the potential energy of the fluid as it falls to the bottom of the pump station body 1. [

In one embodiment, the prefabricated pump station unit of the present invention further comprises a first grill device 5 '. 1 and 3, the first grill device 5 'may be installed at the end of the liquid inlet 10 (not shown in FIG. 1), and in particular, at the end of the liquid inlet 10, So that the first grill device 5 'can be conveniently separated from the opening in the upper end of the first tube portion 11 for cleaning. 4, the first grill device 5 'may be mounted on the middle portion or the upper portion of the tapered portion 12, and the first grill device 5' And the tapered portion 12 may be provided at a position where the first tube portion 11 and the tapered portion 12 are engaged with each other. In any case, the first grill device 5 'may be a horizontally porous disc or a mesh disc. The function of the first grill device 5 'is to filter the flow to block large contaminants such as branches, braids, cables and the like in the fluid entering the tapered portion 12 and also to dissipate the fluid energy and homogenize the fluid flow state It has a positive effect.

As shown in Figures 1 and 2, in one embodiment, the prefabricated pump station unit of the present invention includes a pump base 6 mounted to the pump station body 1 and located below the well tube 2, And the submerged pump 3 is mounted on the pump base 6. The present invention does not necessarily include a pump base 6 and in some structural designs the pump base 6 may be omitted and the underwater pump 3 may be omitted when the weight of the underwater pump 3 is relatively light, Since the pump base 6 can be directly installed on the tapered portion 12 or the first tube portion 11, the cost can be reduced. In this embodiment, in addition to the function of supporting the submersible pump 3, the pump base 6 has a flow guiding function for further homogenizing the fluid flow state. Hereinafter, the detailed structure of the pump base 6 will be described.

5 and 6, FIG. 5 is a schematic view illustrating the structure of a pump base of the assembled pump station unit according to the first embodiment of the present invention, and FIG. 6 is a plan view of FIG. 5, in one embodiment, the pump base 6 includes a bottom plate 60, a flow guide 61, at least two flow dividers 62, and at least two supports 63 . The bottom plate 60 may have a circular flat shape fixed to the tapered portion 12 and positioned directly beneath the well tube 2. The flow guide 61 may be a frustum and may be a cut cone including a top surface, a bottom surface, and a conical surface connecting the top surface and the bottom surface, (60), and the upper surface faces the suction port of the submersible pump (3). The flow dividing section 62 may be, for example, a flow dividing plate, and the bottom surface of the flow dividing plate is fixed to the bottom plate 60, and one side is fixed to the flow guiding section 61. Fig. 6 shows four flow dividing plates evenly distributed along the circumferential direction of the flow guide portion 61. Fig. Of course, the number of the flow dividing sections 62 is not limited to four, and may be appropriately increased or decreased according to actual requirements. The impeller of the submersible pump 3 tends to generate a vortex that rotates in a single direction during rotation of the fluid and the function of the flow dividing section 62 is to block vortices that may occur and make the fluid flow condition more uniform . When the fluid flows along the tapered portion 12, the fluid flows to the upper surface along the conical surface of the flow guide portion 61 and then flows into the suction port of the underwater pump 3.

The supporting portion 63 may be a supporting vertical plate fixed to the bottom plate 60. As shown in FIG. 6, four support vertical plates are shown corresponding to the four flow dividing plates, respectively. However, in the present invention, the number of supporting vertical plates is not limited to four, and the positional relationship between the supporting vertical plate and the flow dividing plate need not necessarily correspond to one-to-one correspondence, and they may be arranged in a staggered manner. The height of the supporting vertical plate is higher than the height of the flow guide 61 and the flow dividing plate and the flange 64 is fixed on top of the four supporting vertical plates and the flange 64 is fixed to the outer ring 641 and the inner ring 642). The lower end of the well tube 2 may be further fixedly coupled to the outer ring 641 of the flange 64. The pump body of the underwater pump 3 is fixedly coupled to the inner ring 642 of the flange 64 to prevent the pump body from rotating itself.

When the submersible pump 3 is light, for example, the submersible pump 3 can be mounted directly on the well tube 2, and the pump base 6 is a component having only a flow guiding function and a vortex prevention function .

In the first embodiment, the pump station body 1 comprises a first tube portion 11 and a tapered portion 12, the tapered portion 12 being located at the bottom of the pump station body 1 and the tapered portion 12 ) Gradually decreases along the vertical direction, and when the fluid flows into the first tube portion 11 through the liquid inlet 10, the energy will be consumed to some extent, and the flow state is uniformly homogenized do. The fluid reaches the suction port of the underwater pump 3 after the flow state of the fluid is sufficiently homogenized while the fluid further flows along the inner wall of the tapered portion 12 and the suction port 10 The flow of the fluid to the liquid inlet of the submersible pump 3 is made uniform, which leads to a good water inflow to the submerged pump 3 Thereby improving the operation stability of the submersible pump 3. At the same time, the prefabricated pump station unit is of prefabricated structure, which can greatly shorten construction period, and is light and convenient to transport, simple structure and low cost.

The second embodiment of the prefabricated pump station unit (very important embodiments)

7 is a sectional view partially showing the structure of the first embodiment of the assembled pump station unit of the present invention, Fig. 8 is a left side view of Fig. 7, Fig. 9 is a plan view to be. The main difference between the second embodiment of the assembled pump station unit of the present invention and the first embodiment shown in Figs. 1 to 3 is as follows.

The pump station body 1 includes a first pipe section 11, a tapered section 12 and a second pipe section 13 sealingly connected from top to bottom in order, and the second pipe section 13 includes a first pipe section 11). ≪ / RTI > The first tube portion 11 and the second tube portion 13 may all be cylindrical cylinders or cylinders of other shapes and the tapered portion 12 may be a conical cylinder or other shaped cylinder. The center lines of the first tube portion 11, the tapered portion 12 and the second tube portion 13 may be coaxial or may be displaced with respect to each other.

Fixing devices, for example at least one clamping plate 23, disposed between the pump station body 1 and the well tube 2 may be fixed individually between the well tube 2 and the tapered portion 12, 2 and the second tube portion 13 or may be fixed simultaneously between the well tube 2, the tapered portion 12 and the second tube portion 13.

The pump base 6 is disposed immediately below the second tube portion 13.

The other structure of the second embodiment of the assembled pump station unit is substantially the same as that of the first embodiment, and the detailed description thereof will not be described again here.

First Embodiment of Water Distribution Unit

10 and 11, FIG. 10 is a perspective view showing a first embodiment of the water distribution unit of the present invention, and FIG. 11 is a front view showing the structure of the water distribution unit shown in FIG. As shown in Figs. 10 and 11, an embodiment of the water dispensing unit of the present invention includes a water tank 100 having a liquid inlet 200 and at least one prefabricated pump station unit. Although three prefabricated pump station units are shown in Figs. 10 and 11, the present invention is not limited thereto, and the number of prefabricated pump station units can be appropriately increased or decreased according to actual conditions.

The water tank 100 may be a large-capacity tank of a rectangular, circular, elliptical or other cross-sectional shape. The water tank 100 may be a prefabricated water tank or a built-in civil engineering structure. The water tank 100 is arranged horizontally, that is, the height of the installed water tank 100 is smaller than its length.

The assembled pump station unit is mounted on the bottom surface of the water tank (100). Each of the prefabricated pump station units includes a tapered portion 300, a well tube 400, a water pump and a liquid outlet (not shown), and the tapered portion 300 is fixed to the outer bottom portion of the water tank 100 , The sectional dimension of the tapered portion 300 gradually decreases from the upper portion to the lower portion. The well pipe 400 is disposed in the tapered portion 300 and extends upward into the water tank 100. The liquid outlet communicates with the well tube (400) and extends out of the water tank (100). The submerged pump is disposed within the well tube (400). In one embodiment, the prefabricated pump station unit further includes a second tube portion 500 coupled to the tapered portion 300.

The prefabricated pump station unit in the water dispensing unit of the present invention can be considered as sharing at least one of the prefabricated pump station units of the present invention with a large first cylinder and sharing a liquid inlet, The above-described structure of the assembled pump station unit of the present invention can be used.

The water distribution unit of the present invention operates through a large-capacity water tank and can cooperate with a plurality of pump station units to realize a uniform water distribution function quickly and conveniently and solve the need for large-flow water distribution. At the same time, based on the specific structure of the pump station unit of the present invention, the drainage unit of the present invention has small vibration noise, long life and low maintenance cost because the fluid flow condition at the inlet of the underwater pump is uniform.

Third Embodiment of the Assembled Pump Station Unit

12 is a cross-sectional view partially showing the structure of a third embodiment of the assembled pump station unit of the present invention, Fig. 13 is a right side view of Fig. 12, Fig. 14 is a plan view of Fig. 12 And Fig. 15 is a perspective view showing the structure of the assembled pump station unit of Fig. 12, in which only a part of the outer tube portion and the liquid inlet structure are shown for clearly showing the inner structure.

As shown in Figs. 12 to 14, the third embodiment of the assembled pump station unit of the present invention mainly includes the pump station body 1 and the well tube 2, and may further include an underwater pump.

The liquid inlet 10 is mounted to the pump station body 1 and the liquid flows into the pump station body 1 through the liquid inlet 10. The well pipe 2 is mounted on the pump station body 1. Preferably, the pump station body 1 is coaxially mounted with the pump station body 1, and the well tube 2 is provided with a liquid outlet 20. The submerged pump 3 may be installed at the lower part of the well pipe 2 and the submerged pump may be an axial flow pump. However, the present invention is not limited thereto and other types of pumps such as a centrifugal pump and a mixed- have. The fluid introduced into the pump station body 1 is discharged from the pump station body 1 through the liquid outlet 20 due to the periodic force of the underwater pump.

In a third embodiment of the prefabricated pump station unit, the pump station body 1 comprises an outer tubular portion 14 and an inner tubular portion 15.

The outer tube portion 14 includes an outer peripheral wall 142 disposed on the outer tube bottom 141 and the outer tube bottom 141. The outer tube bottom 141 and the outer peripheral wall 142 may be integrally formed And may be fixedly connected to each other by welding or the like. The outer circumferential wall 142 may be a cylindrical cylinder, but is not limited thereto. The outer circumferential wall 142 may also be a cylinder having an elliptical shape or a polygonal cross-section, and the outer circumferential wall 142 Can be designed in a cylinder shape having an irregular closed ring-shaped cross section.

The inner tube portion 15 includes an inner tube bottom 151 and an inner peripheral wall 152 disposed on the inner tube bottom 151. The inner tube bottom 151 and the inner circumferential wall 152 may be integrally formed or fixedly connected to each other by welding or the like. Likewise, the inner peripheral wall 152 may be a cylindrical cylinder or a non-cylindrical cylinder.

The upper end of the inner tube portion 15 is opened and the upper end portion of the inner tube portion 15 penetrates the outer bottom portion 141 of the outer tube portion 14 and is located inside the outer tube portion 14, The outer portion of the outer tube portion 14 is located outside. A part of the inner peripheral wall 152 and a part of the outer peripheral wall 142 and the outer bottom part 141 together form the circulation space 140 and the liquid inlet 10 is provided on the outer peripheral wall 142 .

In another embodiment, the inner tube portion 15 may include only the inner peripheral wall 152 and may not include the inner tube bottom 151. [ In this case, when the assembled pump station apparatus of the present invention is installed in the field, the lower end of the inner peripheral wall 152 can be sealed and fixed to a structure such as a base or a bottom plate, 15 can be prevented from leaking from the bottom.

As shown in Figs. 12 and 14, four fixing plates 23 are uniformly arranged in the circumferential direction between the well pipe 2 and the inner pipe portion 15, and one side of the fixing plate 23 is connected to the well pipe 2 And the other side is fixed to the inner tube portion 15, whereby the well tube 2 and the inner tube portion 15 are fixed together. The number of the fixing plates 23 is not limited to four, but can be appropriately increased or decreased according to the size of the pump station body 1 and the overall design of the assembled pump station apparatus. One function of the fixing plate 23 is to fix the well tube 2 and the inner tube portion 15 to each other. Further, the fixing plate 23 has a function of uniformly distributing the fluid, and the fluid in the outer tube portion 14 can be evenly distributed into the inner tube portion 15. Further, the fixing plate 23 can prevent the fluid flowing to the outer tube portion 14 through the liquid inlet 10 from forming a vortex while the fluid flows down, thereby contributing to homogenization of the fluid flow state.

In the embodiment shown in Fig. 14, the pump station body 1 is constituted by a combination of a cylindrical outer tube portion 14 and a cylindrical inner tube portion 15. The present invention is not limited thereto and the pump station body 1 applied in the present invention can be formed by freely joining and sealing an arbitrary shaped outer tube portion 14 and an arbitrary shaped inner tube portion 15 . In the embodiment shown in Fig. 14, the center line of the cylindrical inner tube portion 14 and the cylindrical outer tube portion 15 coincide, but in other embodiments, the two center lines may not coincide and may have a constant partial deviation , Which can be applied in special cases where space is limited.

The inner circumferential wall 152 of the inner tube portion 15 collides with the inner circumferential wall 15 while the fluid having a constant kinetic energy flows into the circulation space 140 between the outer tube portion 14 and the inner tube portion 15 through the liquid inlet 10. [ And at the same time, the flow state is optimized to be uniform to some extent. Next, when the fluid overflows from the opening at the upper end of the inner peripheral wall 152 into the inner tube portion 15, the fluid kinetic energy is further consumed and the flow state of the fluid becomes more homogenous, Upon reaching, the fluid flow condition is very uniform and stable, providing a smooth, uniform and stable fluid at the central underwater pump inlet.

In one embodiment, the position of the liquid inlet 10 on the outer tube portion 14 may be as close as possible to the outer tube bottom 141. For example, the lower edge of the liquid inlet 10 may be adjacent to the outer bottom 141 or coplanar with the outer bottom 141, which may allow fluid to enter the circulation space 140, Lt; RTI ID = 0.0 > 15 < / RTI >

In one embodiment, the prefabricated pump station unit of the present invention further comprises a second grill device 5 ". 12 and 14, the second grill device 5 " can be installed at the end of the liquid inlet 10, and is removably mounted at the end of the liquid inlet 10, The grilling device 5 " can be conveniently separated from the opening in the upper end of the outer tubular portion 14 for cleaning. The second grilling apparatus 5 " may be a plate or mesh disk having a plurality of through holes mounted in openings in the upper end of the inner tube portion 15. [ The function of the second grill device 5 " is to block large contaminants such as branches, braids, cables and the like in the fluid from flowing into the inner tube portion 15 and also to provide a positive Effect.

12 and 15, the second grill means 5 " includes a plurality of grill holes (not shown) formed in the inner peripheral wall 152 of the inner tube portion 15 located inside the outer tube portion 14, 1521, and these grill holes 1521 communicate the inside of the inner tube portion 15 with the circulation space 140. [ The accumulation of water in the circulation space 140 can be avoided because the position of the grill hole 1521 is adjacent to the outer bottom floor 141 in the up and down direction along the inner peripheral wall 152 in one embodiment. In another embodiment, along the circumferential direction of the inner peripheral wall 152, the grill hole 1521 is disposed at another position of the inner peripheral wall 152 while avoiding the portion of the inner peripheral wall 152 facing the liquid inlet 10 The collision of the inner peripheral wall 152 with respect to the fluid during the entry of the fluid into the circulation space 140 can be suppressed more effectively because the grill hole 1521 is not disposed at the portion where the liquid inlet of the inner peripheral wall 152 is in contact therewith Can be improved to consume energy.

In the third embodiment, the assembled pump station unit of the present invention further includes a pump base 6, and the structure of the pump base 6 is the same as that of the first embodiment described above, Do not.

In a third embodiment of the prefabricated pump station unit of the present invention the pump station body 1 comprises an outer tubular portion 14 and an inner tubular portion 15 which extend into the outer tubular portion 14 Thereby forming a circulation space 140. When the fluid enters the prefabricated pump station unit through the liquid inlet 10, the fluid does not directly enter the inner tubular portion 15 and enters the circulation space 140. First, the fluid contacts the sidewall of the inner tubular portion 15 The flow state of the fluid is uniformly homogenized as a part of the energy is consumed and then the fluid again flows from the circulation space 140 to the inner tube portion 15 while the fluid flow state is further homogenized, The pump station unit can effectively avoid or reduce the impact on the operation of the underwater pump 3 due to the uneven fluid flow state of the liquid inlet 10 and can prevent the fluid flow state of the liquid entering the inlet of the underwater pump 3 This creates a good water inflow condition for the submersible pump and improves the stability of the underwater pump operation.

Because the prefabricated pump station unit is prefabricated, it can greatly shorten construction period, and is light and convenient to transport, simple structure and low cost.

The prefabricated pump station unit may be equipped with a large flow axial flow pump or a mixed flow pump.

In the assembled pump station unit, the outer tubular portion 14 and the inner tubular portion 15 partially overlap in space to form the circulation space 140, and the fluid flows into the inner tubular portion 15 through the circulation space 140 During the process fluid kinetic energy is completely consumed and fluid flow is completely homogenized. Thus, by using the prefabricated pump station unit of the present invention, there is no need to provide a plurality of reservoirs to homogenize fluids and remove energy as in the prior art, thereby effectively saving the floor space and using it more flexibly in more places can.

Fourth Embodiment of the Assembled Pump Station Unit

16 is a cross-sectional view partially showing the structure of a fourth embodiment of the assembled pump station unit of the present invention. Referring to Fig. 16, the main differences between the fourth embodiment of the assembled pump station unit of the present invention and the third embodiment shown in Figs. 12 to 15 are as follows.

The inner tube portion 15 has a tapered cylindrical shape, has a large diameter end and a small diameter end, and a larger diameter end is located in the outer tube portion 14. As the fluid flows through the inner wall of the tapered cylindrical inner tube portion 15, the fluid flow condition becomes more homogeneous.

The other structure of the fourth embodiment of the assembled pump station unit is substantially the same as that of the third embodiment, and the detailed description thereof will not be described again here.

Fifth Embodiment of the Assembled Pump Station Unit

17 is a cross-sectional view partially showing the structure of a fifth embodiment of the assembled pump station unit of the present invention. Referring to Fig. 17, the main difference between the fifth embodiment of the assembled pump station unit of the present invention and the third embodiment shown in Figs. 12 to 15 is as follows.

A portion of the inner tube portion 15 located on the outer side of the outer tube portion 14 has a cylindrical shape and a portion of the inner tube portion 15 located on the inner side of the outer tube portion 14 has a tapered cylindrical shape, Has an end of a large diameter and an end of a small diameter, and an end of a large diameter is located inside the outer portion (14). The tapered cylindrical portion of the inner tube portion 15 further homogenizes the flow state of the fluid.

The other structure of the fifth embodiment of the assembled pump station unit is substantially the same as that of the third embodiment, and a detailed description thereof will not be described again here.

Second Embodiment of Water Distribution Unit

18 to 21, Fig. 18 is a perspective view showing a second embodiment of the water distribution unit of the present invention, in which only a part of the tank structure is shown for clearly showing the internal structure, and Fig. 19 Fig. 20 is a plan view of Fig. 18, and Fig. 21 is a right side view of Fig. As shown in Figs. 18-21, a second embodiment of the water distribution unit of the present invention includes a water tank 100 having a liquid inlet 200 and at least one prefabricated pump station sub-unit. Although the figure shows three prefabricated pump station subunits, the present invention is not so limited, and the number of prefabricated pump station subunits can be appropriately increased or decreased depending on actual conditions.

The water tank 100 may be a large-capacity tank of a rectangular, circular, elliptical or other cross-sectional shape. The water tank 100 may be a prefabricated water tank or a built-in civil engineering structure. The water tank 100 is arranged horizontally, that is, the height of the installed water tank 100 is smaller than its length.

The assembled pump station sub-unit is mounted on the bottom surface of the water tank (100). Each of the prefabricated pump station subunits includes an inner tube portion 600, a well tube 400, a water pump and a liquid outlet (not shown), and the inner tube portion 600 is fixed to the bottom of the water tank 100, And the water outlet extends to the inside of the tank 100 and the well pipe 400 is mounted on the inner pipe portion 600 and extends upward from the inner pipe portion 600. The liquid outlet port communicates with the well pipe 400, Extend out. The underwater pump is mounted on the well pipe 400. In another embodiment, the water distribution unit may not include an underwater pump, and the underwater pump may be separately assembled in the field.

Third Embodiment of Water Distribution Unit

22 and 23, FIG. 22 is a perspective view showing a third embodiment of the water distribution unit of the present invention, in which only a part of the tank structure is shown for clearly showing the internal structure, and FIG. 23 22 is a partial cross-sectional front view. The main difference between the third embodiment and the second embodiment of the water dispensing unit of the present invention is that the water tank 100 is cylindrical.

The other structure of the third embodiment of the water dispensing unit is basically the same as that of the second embodiment, and a detailed description thereof will be omitted.

The prefabricated pump station unit in the water distribution unit of the present invention can be considered as sharing at least one of the prefabricated pump station units of the present invention with a large outer cylinder (water tank) and sharing a liquid inlet, Such as pump bases, grill devices, and the like.

The water distribution unit of the present invention can realize a uniform water distribution function quickly and conveniently by a plurality of prefabricated pump station sub units operating together in a large-capacity water tank, and can solve the demand for large-flow water distribution. At the same time, the water distribution unit of the present invention has small vibration noise, long service life and low maintenance cost, because the fluid flow condition at the inlet of the submersible pump is uniform, based on the specific structure of the pump station unit of the present invention.

The prefabricated pump station unit and water dispensing unit of the present invention are suitable for the application of raw water transport such as sewage transport, rainwater transport or lake water, river water, surface water and ground water, as well as other applications requiring fluid transport Do.

In accordance with the present invention, the fluid flow condition is significantly improved regardless of whether it is a prefabricated pump station unit or a water distribution unit. As an example of the assembled pump station unit, as shown in Fig. 24 (see Fig. 12), Fig. 24 is a view schematically showing the simulated flow state of the water flow in the circulation space of the assembled pump station unit, Is introduced into the circulation space 140 through the liquid inlet 10 and a part of the water flows into the inner tube portion 15 through the second grill device 5 ", and the second grill device 5 " 3), the flow rate of the inflow water can be made uniform and the inflow state of the inflow port can be improved. The other part of the fluid overflows from the upper end of the inner tube part 15 to the inner tube part 15 and the inner tube part 15 dissipates the energy of the inflow fluid and in the case of a higher water level, It is advantageous to reduce the pump foot area and to allow the high-flow low-head submerged pump to operate normally, since it does not affect the discharge quantity of the submersible pump 3 while dispersing the energy.

As shown in Fig. 25 (see Fig. 12), Fig. 25 is a view schematically showing the simulated flow state of the water flow at the inlet of the submersible pump of the assembled pump station unit of the present invention. As can be seen from Fig. 25, in the prefabricated pump station apparatus of the present invention, the flow line near the suction port of the submersible pump 3 is not observed to have a relatively uniform and apparent water flow vortex.

Sixth Embodiment of the Assembled Pump Station Unit

In the sixth embodiment of the prefabricated pump station unit of the present invention, the definition of the "upper" and "lower" When the prefabricated pump station unit of the present invention is in a normal operating state, the direction away from the ground is "upper ", and the opposite direction to the ground is" lower ". Particularly, in the assembled pump station unit, as shown in Figs. 26A and 26B, one side of the pump station body 1 on which the upper cover 4 is mounted is the upper side, and one side This is the lower side. In other embodiments, the directions of "upper" and "lower" may be mentioned.

26A and 26B, FIG. 27A is an exploded perspective view showing a pump station body sealed by a seal ring in the upper cover and the assembled pump station unit shown in FIG. 26A, FIG. And an upper cover and a pump station body sealed by a seal ring in the pump station unit. 26a and 26b, the prefabricated pump station unit of the present invention includes a prefabricated pump station body 1, a well tube 2, a liquid inlet 10, a liquid outlet 20, an upper lid 4, A pump base 6 and an underwater pump 3, and the underwater pump 3 may be an axial flow pump, a mixed flow pump or a cross flow pump.

In the sixth embodiment, the pump station body 1 includes a first tube portion 11, a second tube portion 13, and a tapered portion 12. The tapered portion 12 is connected between the first tube portion 11 and the second tube portion 13. The diameter of the first tube portion (11) is larger than the diameter of the second tube portion (13). An auxiliary support body 24 such as a support plate or a reinforcing rib is fixed to the outside of the tapered portion 12.

A liquid inlet 10 is provided at a position near the tapered portion 12 of the first tube portion 11. The liquid inlet 10 may be integrally formed with the first tube portion 11 or may be fixed to the first tube portion 11 by welding or the like. A liquid outlet 20 is provided at the upper end of the second tube portion 13, that is, in the vicinity of the upper cover 4. [ Of course, the liquid outlet 20 need not necessarily be provided at the upper end of the second tube portion 13 but need not necessarily be provided on the second tube portion 13. For example, if the length of the second tube portion 13 is relatively small and the length of the first tube portion 11 is relatively large, the liquid outlet 20 may be provided on the first tube portion 11. The liquid outlet 20 may be integrally formed with the second tube portion 13 or the first tube portion 11 and may be fixed by welding or the like.

The pump station body 1 of the present invention is not limited to the specific structure described above, and other structures such as a linear cylindrical pump station body and a stepped pump station body can be applied to the present invention.

As shown in Fig. 26A, the well tube 2 is disposed coaxially with the pump station body 1 inside the pump station body 1. The well tube 2 has a divided structure including a lower tube portion 21 and an upper tube portion 22 connected to each other. In the present embodiment, the lower tube portion 21 and the upper tube portion 22 are detachably coupled by bolt coupling or the like. An outlet pipe 25 is connected to the upper tube portion 22 and an outlet pipe 25 can be integrally formed or fixed to the upper tube portion 22. [ In another embodiment, the outlet pipe 25 may communicate with the lower tube portion 21. The outlet pipe (25) and the liquid outlet (20) are connected by a flexible joint (30).

27A is an exploded perspective view showing an upper portion and a pump station body sealed by a seal ring in the assembled pump station unit shown in Fig. 26A, Fig. 27B is an exploded perspective view showing a portion P, and Fig. 27C is an assembled perspective view showing the upper cover and the pump station body sealed by the seal ring in the assembled pump station unit shown in Fig. 26A.

As shown in Fig. 26A, the upper cover 4 is covered with the upper opening of the pump station body 1. A manhole 40 is disposed in the upper cover 4 to facilitate the operator or maintenance personnel to enter the pump station body 1 through the manhole 40. In some embodiments, the pump station body 1 is provided with a ladder (not shown) for people to go in or a work platform (not shown) that is convenient for people to work with.

27A to 27C, the upper cover 4 may be in the form of a disk, the peripheral edge of the upper cover 4 is bent to form the engaging portion 41, and the upper cover 4 and the pump Between the station bodies 1, there is a sealing ring for sealing them. The seal ring may be a rubber seal ring 7 and preferably the rubber seal ring 7 comprises a ring body 71 and an annular protrusion 72 is provided on the outer surface of the ring body 71, The annular protrusion 72 can improve the sealing performance, and more preferably, the annular protrusion 72 of the rubber sealing ring 7 is of the threshold type.

The engaging portion 41 of the upper cover 4, the side wall of the pump station body 1 and the rubber sealing ring 7 can be further fixed by bolts (not shown).

26A, in one embodiment, the prefabricated pump station unit further includes four stationary plates 23 equally mounted in the circumferential direction, and the lower tube section 21 is supported by four stationary plates 23 And is fixed to the pump station body 1. Specifically, the outer sides of the four fixing plates 23 are fixed to the side walls of the pump station body 1, and the four fixing plates 23 are fixed to the bottom plate 17 of the pump station body 1 When the assembled pump station unit does not have the bottom plate 17, the lower ends of the four clamping plates 23 are located on the same plane as the lower end face of the pump station body 1 (when the apparatus has the bottom plate 17) And may be further secured to the base plate for mounting the prefabricated pump station unit. The lower tube portion 21 is fixed to the inside of the four stationary plates 23 so that the lower tube portion 21 is fixed to the pump station body 1 by the four stationary plates 23. The number of the fixing plates 23 is not limited to four but may be appropriately increased or decreased according to the diameter of the assembled flat station device.

26A-26D, the pump base 6 is mounted below the well tube 2 inside the pump station body 1 and in other embodiments the pump base 6 is connected to the well tube 2, As shown in FIG. When the prefabricated pump station unit is provided with the fixing plate 23, the pump base 6 can be further fixed to the inside of the fixing plate 23. A separating plate made of a sealing material such as a sealing strip or a material such as glass fiber is provided on the gap between the fixing plate 23 and the pump base 6. The fixing plate 23 has a lower tube portion 21 and a pump station body 1) into an independent flow channel 18 isolated from each other (see Fig. 26 (d)). 26a) is provided in the pump base 6 corresponding to each independent flow channel 18 so that fluid enters the pump base 6 through the channel 65 and enters the underwater pump 3 To the inlet of the compressor. The underwater pump 3 may be mounted on the pump base 6 and may be an axial flow pump or a mixed flow pump.

29A-29E, various schematic views of the basket grill 5 of the prefabricated pump station unit are shown. 29A-29E, one embodiment of the prefabricated pump station unit of the present invention further includes a gate valve 8 mounted to the basket grill 5 and the basket grill 5. The basket grill (5) is slidably mounted on the pump station body (1). For example, the upper portion of the pump station body 1 is fixed by the support rods 16 (see Figs. 29d and 29e), the two parallel guide rails 19 are fixed on the support rods 16, The basket grill (5) is slidably mounted on the guide rail (19). The basket grill 5 can slide along the guide rails 5 and can reach the upper opening of the assembled pump station unit in the upper direction and the lower openings of the basket grill 5 (Not shown) to facilitate the grill support sheet (not shown).

The basket grill 5 has a box shape or a basket shape and has a grill inlet 51 of a larger size and a plurality of grill outlets 52 of a smaller size. Large fragments such as stones and branches in the fluid are blocked in the basket grill 5 while the fluid flows into the grill inlet 51 and flows out to the plurality of grill outlets 52. [

28A-28E, various schematic views of the gate valve of the assembled pump station unit shown in Fig. 26A are shown. 28A-28E, the gate valve 8 includes a back plate 81, a face plate 82 parallel to the back plate 81, a side wall 86, and a gate 84. A gate port 83 is provided at an intermediate portion between the rear plate 81 and the front plate 82. The side walls 86 connect the left, right, and rear surfaces of the rear plate 81 and the front plate 82. An opening is formed in the upper portion of the rear plate 81 and the upper portion of the front plate 82 so that the gate 84 is inserted into the opening between the rear plate 81 and the front plate 82 to block the gate port 83 And the lower end of the gate 84 has a guiding angle on both sides to facilitate insertion and removal of the gate 84. [

The gate valve 8 further includes a connecting cylinder 85 disposed around the gate port 83. One end of the connecting cylinder 85 is fixed to the front plate 82, The gate port 83 corresponds to the grill inlet 51 and the grill inlet 51 of the basket grill 5 can be opened and closed by inserting or withdrawing the gate 84. [

In another embodiment, the gate valve 8 may be sealed and connected to the liquid inlet 10 at the same time. For example, the gate valve 8 is connected to the liquid inlet 10 through a flange, a gasket or a flexible joint, in which case the gate valve 8 also has the function of opening and closing the water. Further, the gate valve 8 can be sealed only to the liquid inlet 10 without being connected to the basket grill 5.

The prefabricated pump station unit and water dispensing unit of the present invention are suitable for the application of raw water transport such as sewage transport, rainwater transport or lake water, river water, surface water and ground water, as well as other applications requiring fluid transport Do.

In the above embodiments, relative terms such as "upper" or "lower" may be used to describe the relative relationship of one component to another component. When the icon of the device is turned upside down, the component described as "bottom" becomes the "top" component. The terms "a", "an", "the", "the" and "at least" are used to denote the presence of one or more elements / parts. The terms "comprises" and "having" are used in a generic sense and are understood to include additional elements, etc. in addition to the listed elements. Also, the terms "first "," second ", and the like in the claims are used as references only and are not intended to limit the scope of the subject.

1: pump station body 10: liquid inlet
11: first tube portion 12: tapered portion
13: second tube portion 2: well tube
20: liquid outlet 3: submerged pump
23: fixing plate 5 ': first grill device
6: pump base 61:
60: bottom plate 62:
63: support portion 64: flange
641: outer ring 642: inner ring
100: water tank 200: liquid inlet
300: tapered part 400: well pipe
500: second tube portion 14: outer tube portion
140: Circulation space 141: Outer floor
142: outer peripheral wall 15: inner tube
151: inner tube bottom 152: inner circumference
1521: Grille hole 23: Fixing plate
5 ": second grill device 6: pump base
61: flow guide portion 60: bottom plate
62: flow dividing section 63: support section
600: inner tube 16: support rod
19: guide rail 17: bottom plate
18: flow channel 19: support
2: a well tube 21: a lower tube tube
22: upper pipe portion 25: outlet pipe
30: Flexible joint 4: Upper cover
40: Manhole 41: Coupling portion
5: Basket grill 51: Grill entrance
52: Grill exit 6: Pump base
65: channel 7: rubber seal ring
71: ring body 72: annular protrusion
8: gate valve 81: rear plate
82: front plate 83: gate port
84: gate 85: connector
86: Side wall

Claims (39)

(1), a liquid inlet (10) connected to the pump station body (1) and a liquid outlet (20), and a well tube (2) connected to the pump station body A prefabricated pump station unit, wherein a circumference of an upper end cross-section of the pump station body (1) is larger than a circumference of a lower end cross-section of the pump station body (1). The method according to claim 1,
The pump station body 1 includes a first pipe section 11 and a tapered section 12 connected to a lower end of the first pipe section 11. The sectional dimension of the tapered section 12 extends from the upper , And said liquid inlet (10) is provided in said first tube portion (11). 3. The method of claim 2,
The center line of the first tube portion (11) and the tapered portion (12) coincide with each other; The first tube portion 11 is a cylindrical cylinder and the tapered portion 12 is a conical cylinder; The cone angle (α) of the conical cylinder is 15 ° to 50 °. 3. The method of claim 2,
Wherein the lower edge of the liquid inlet (10) is adjacent to the tapered portion (12) or coplanar with the upper edge of the tapered portion (12). 3. The method of claim 2,
The prefabricated pump station unit further includes a first grill device 5 'which is mounted to the first tube part 11 or installed at the end of the liquid inlet 10 Prefabricated pump station unit. 3. The method of claim 2,
Wherein the well tube (2) is arranged coaxially with the pump station body (1) inside the pump station body (1). 7. The method according to any one of claims 2 to 6,
Wherein the pump station body 1 further comprises a second tube section 13 having a sectional dimension less than the first tube section 11 and the second tube section 13 having a cross- (12). ≪ / RTI > 8. The method of claim 7,
Wherein the first tube portion 11 and the second tube portion 13 are both cylindrical cylinders and the tapered portion 12 is a conical cylinder and the first tube portion 11 and the second tube portion 13, The center line of the portion (12) corresponds to the assembled pump station unit. 8. The method of claim 7,
Wherein at least one clamping plate (23) is provided between the well tube (2) and the tapered portion (12) and / or the second tube portion (13). The method according to claim 1,
The pump station body 1 includes an outer tubular portion 14 and an inner tubular portion 15. The outer tubular portion 14 includes an outer tubular floor 141 and an outer tubular wall 141 disposed on the outer tubular floor 141, (142); The inner tube portion 15 includes an inner peripheral wall 152 and an upper end portion of the inner tube portion 15 is opened and an upper end portion of the inner tube portion 15 passes through the outer tube bottom portion 141, (14), and the remaining portion of the inner tube portion (15) is located outside the outer tube portion (14); A part of the inner peripheral wall 152, a part of the outer peripheral wall 142 and the outer bottom 141 form together a circulation space 140 and the liquid inlet 10 is connected to the outer peripheral wall 142 A prefabricated pump station unit mounted. 11. The method of claim 10,
Wherein the inner tube portion (15) further comprises an inner tube bottom (151) integrally formed at the lower end of the inner peripheral wall (152) or sealed tightly to the lower end of the inner peripheral wall (152). 11. The method of claim 10,
And the center line of the outer tube portion (14) coincides with the center line of the inner tube portion (15). 11. The method of claim 10,
Wherein the inner tube portion (15) and the outer tube portion (14) are both cylindrical cylinders, and the inner tube portion (15) has a smaller sectional dimension than the outer tube portion (14). 11. The method of claim 10,
Wherein the inner tube section (15) has a conical cylinder shape with a large diameter end and a small diameter end, the large diameter end of the inner tube section (15) being located inside the outer tube section (14). 11. The method of claim 10,
And a portion of the inner tube portion (15) located inside the outer tube portion (15) is a conical cylinder. 11. The method of claim 10,
Wherein the lower edge of the liquid inlet (10) is not higher than the upper edge of the inner peripheral wall (152). 11. The method of claim 10,
Wherein the lower edge of the liquid inlet (10) is adjacent to the outer bottom (141) of the outer tubular portion (14) or coplanar with the outer tubular bottom (141). 11. The method of claim 10,
Wherein a portion of the inner peripheral wall 152 located in the outer tube portion 14 is provided with at least one grill hole 1521 for communicating the interior of the inner tube portion 15 with the circulation space 140, . 11. The method of claim 10,
Wherein said prefabricated pump station unit further comprises a second grill device 5 ", said second grill device 5 " being mounted on the end of said liquid inlet 10, (152). ≪ / RTI > 11. The method of claim 10,
The relationship between the height H1 of the portion of the inner tube portion 15 located outside the outer tube portion 14 and the diameter D of the well tube 2 satisfies H1 = Prefabricated pump station unit. 21. The method according to any one of claims 2 to 20,
The submersible pump station unit further comprises an underwater pump 3 which is disposed inside the well tube 2 or below the pump station body 1 and the well tube 2, A prefabricated pump station unit which is an axial flow pump, a mixed flow pump or a crossflow pump. 22. The method of claim 21,
The prefabricated pump station unit further comprises a pump base 6 which is mounted to the pump station body 1 and which is disposed below the well tube 2, ) Is mounted on the well tube (2) and the submersible pump (3) is mounted on the pump base (6). 23. The method of claim 22,
The pump base 6 includes a bottom plate 60, a flow guide portion 61 fixed to the center position of the bottom plate 60, and a flow guide portion 61 fixed to the bottom plate 60 and the flow guide portion 61 Wherein the at least two flow dividing sections (62) are uniformly distributed in a circumferential direction of the flow guide section (61). 24. The method of claim 23,
The pump base 6 further includes at least two support portions 63 fixed to the bottom plate 60. The height of the support portion 63 is greater than the height of the flow guide portion 61 and the flow dividing portion 62, And a flange (64) is secured to the upper portion of the at least two supports (63). The method according to claim 1,
An outlet pipe 25 is connected between the well 2 and the liquid outlet 20 and the well 2 has an upper tube portion 22 connected to the lower tube portion 21 and the lower portion 21 Wherein said outlet pipe (25) communicates with said upper tube portion (22), said prefabricated pump station unit further comprising at least two clamping plates (23) uniformly disposed in a circumferential direction, said lower The tubular section (21) is secured to the pump station body (1) by at least two clamping plates (23). 26. The method of claim 25,
And the upper tube portion (22) is detachably coupled to the lower tube portion (21). 26. The method of claim 25,
Further comprising a pump base (6) mounted under the well tube (2) or inside the well tube (2). 26. The method of claim 25,
The outer sides of the at least two fixing plates 23 are fixed to the pump station body 1 and the lower ends of the at least two fixing plates 23 are flush with the lower surface of the pump station body 1, Is fixed to the bottom plate (17) of the station body (1), and the lower tube portion (21) is fixed inside the at least two fixing plates (23). 28. The method of claim 27,
Wherein the pump base (6) is mounted on the lower side of the lower tube portion (21) and is fixed inside the at least two fixing plates (23). 30. The method of claim 29,
A seal is provided in the gap between the fixing plate 23 and the pump base 6 so that the at least two fixing plates 23 are spaced apart from each other by at least two Each of said independent flow channels (18) having a corresponding channel (65) provided on said pump base (6). 26. The method of claim 25,
The pump station body 1 comprises a first tube portion 11 having a larger diameter, a tapered portion 12 connected to the first tube portion 11 and having a gradually decreasing diameter, And a second tubular portion (13) having a small diameter, said tapered portion (12) being secured by an auxiliary support (24). 31. The method according to any one of claims 27, 29 or 30,
The prefabricated pump station unit further comprises an underwater pump (3) mounted on the pump base (6). A water distribution unit comprising a water tank (100) having a liquid inlet (200)
The water distribution unit further includes at least one prefabricated pump station unit, wherein each prefabricated pump station unit includes a tapered portion (300), a well tube (400) and a water outlet, wherein the tapered portion (300) Wherein the tapered portion 300 is fixed to the outer bottom of the water tank 100 and the cross sectional area of the tapered portion 300 gradually decreases from the upper portion to the lower portion and the well pipe 400 is mounted on the tapered portion 300, 100, and the liquid outlet is connected to the well pipe (400) and extends outside the water tank (100). 34. The method of claim 33,
Wherein the prefabricated pump station unit further comprises a second tube portion (500) connected to the tapered portion (300). 34. The method of claim 33,
Wherein the water distribution unit further comprises an underwater pump mounted within the well tube (400). 34. The method of claim 33,
The water tank 100 may be a prefabricated water tank or a civil engineering structure; And / or the water tank 100 may be a tank having a rectangular, circular or elliptical cross-section; And / or the water tank (100) can be arranged horizontally. A water distribution unit comprising a water tank (100) having a liquid inlet (200)
The water distribution unit further comprises one prefabricated pump station subunit,
Each of the prefabricated pump station subunits includes an inner tube portion 600, a well tube 400, and a liquid outlet,
The inner tube portion 600 is fixed to the bottom of the water tank 100 and the upper end of the inner tube portion 600 is opened to extend into the interior of the water tank 100, Wherein the water outlet is connected to the well pipe and extends to the outside of the water tank. 2. The water distribution unit of claim 1, wherein the water outlet is a water outlet. 39. The method of claim 37,
Wherein the water distribution unit further comprises an underwater pump mounted within the well tube (400). 39. The method as claimed in claim 37 or 38,
The water tank 100 may be a prefabricated water tank or a civil engineering structure; And / or the water tank 100 may be a tank having a rectangular, circular or elliptical cross-section; And / or the water tank (100) can be arranged horizontally.

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