Integrated prefabricated axial flow pump station

Abstract

The utility model discloses an integrated prefabricated axial flow pump station which comprises a barrel, a grating, a water inlet, a support, a base, a water pump and a shaft. The support is arranged in the center of the bottom of the barrel, the base is arranged on the upper portion of the support, the water pump is arranged on the upper portion of the base, and the base and the water pump are sleeved with the shaft. The water inlet is arranged outside the cylinder wall on one side of the cylinder body, the grating is arranged on the cylinder wall of the inner surface of the cylinder body corresponding to the position of the water inlet, and a first turbulent flow body is arranged at the bottom of the cylinder wall of the cylinder body. The device can effectively slow down rotational flow of water at the bottom of the barrel, enhance the turbulent flow effect of the water, effectively increase the lift of the axial flow pump and improve the working efficiency of the pump.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection, in particular to an integrated prefabricated axial flow pump station. Background Art

[0002] Integrated prefabricated axial flow pumping stations are widely used in the collection and transportation of rainwater and sewage in municipal and water conservancy projects due to their advantages such as large flow and high solid particle pass rate. Pumping stations are usually composed of a cylinder, a water pump, a wellbore, a grille and a control system.

[0003] Due to the large flow rate of the pump station, the water inlet is set on one side of the cylinder, and the axial flow pump is set in the center of the cylinder, when the pump station is running, the high-speed rotating impeller moves the water from the bottom of the cylinder upward. At this time, a rotation motion of the water will be formed at the bottom of the cylinder, causing the head of the axial flow pump to decrease, thereby reducing the efficiency of the water pump. Summary of the invention

[0004] Technical problem: The technical problem to be solved by the utility model is to provide an integrated prefabricated axial flow pump station, which can effectively slow down the rotational flow of water at the bottom of the cylinder, enhance the turbulent effect of water, effectively increase the head of the axial flow pump, and improve the working efficiency of the pump.

[0005] Technical solution: To solve the above technical problems, the technical solution adopted by the embodiment of the utility model is:

[0006] An integrated prefabricated axial flow pump station comprises a cylinder, a grille, a water inlet, a bracket, a base, a water pump and a wellbore; the bracket is arranged at the center position of the bottom of the cylinder, the base is arranged on the upper part of the bracket, the water pump is arranged on the upper part of the base, and the wellbore is sleeved on the outside of the base and the water pump; the water inlet is arranged on the outside of the cylinder wall on one side of the cylinder, the grille is arranged on the inner surface wall of the cylinder corresponding to the position of the water inlet, and a first turbulent body is arranged at the bottom of the cylinder wall of the cylinder.

[0007] As a preferred example, the first turbulent body is an arc-shaped curved surface structure; the number of the first turbulent bodies is N, N≥4; the first turbulent bodies are evenly distributed at the bottom of the cylinder wall.

[0008] As a preferred example, the water pump includes a pump body, a guide vane body, an impeller, a spherical chamber and a water inlet horn; the upper end of the guide vane body is connected to the lower end of the pump body, the upper end of the spherical chamber is connected to the lower end of the guide vane body, and the impeller is arranged inside the spherical chamber; the upper end of the water inlet horn is connected to the lower end of the spherical chamber, a rotor shaft is provided in the pump body, and the rotor shaft passes through the guide vane body; the bottom of the rotor shaft is connected to the impeller.

[0009] As a preferred example, the water inlet horn includes a main body, a turbulence hole and a second turbulence body; the main body is a thin-walled bell mouth structure; the upper end diameter of the main body is smaller than the lower end diameter; the turbulence hole is arranged on the surface of the main body; and the second turbulence body is arranged on the inner wall of the main body.

[0010] As a preferred example, the number of the second turbulent bodies is M, 4≤M≤12; the second turbulent bodies are arc-shaped curved surface structures and are evenly distributed on the inner wall of the body.

[0011] As a preferred example, the turbulence holes are through holes, and the turbulence holes are evenly distributed along the circumferential direction of the body.

[0012] As a preferred example, the wellbore is arranged vertically, and a water outlet device is provided at the upper part of the wellbore, and the water outlet device is a three-way structure; the bottom end of the water outlet device is connected to the top of the wellbore, and a cover plate is provided at the top of the water outlet device, and the cover plate is sealedly connected to the top of the water outlet device, and the side wall of the water outlet device passes through the wall of the cylinder and extends out of the cylinder to form a water outlet.

[0013] As a preferred example, an integrated prefabricated axial flow pump station further includes a vent, which is arranged on the top of the cylinder.

[0014] Beneficial effects: Compared with the prior art, the technical solution of the utility model has the following beneficial effects: the technical solution of the utility model, by arranging a first turbulent body on the inner wall of the cylinder, reduces the rotational motion of the water flow entering the cylinder at the bottom of the cylinder, increases the turbulent effect, and allows the water flow to flow into the water pump more quickly and smoothly; before the water flow enters the water pump, a second turbulent body and turbulent holes are arranged on the inner wall of the water inlet horn to slow down the rotational motion of the water flow entering the water pump, increase the turbulent effect for a second time, convert kinetic energy into pressure energy, thereby increasing the head of the water pump and effectively improving the efficiency of the pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of an embodiment of the utility model;

[0016] Figure 2 This is a structural diagram of a water pump according to an embodiment of the utility model;

[0017] Figure 3 It is a structural diagram of a water inlet horn according to an embodiment of the utility model.

[0018] The figure includes: cylinder 1, grille 2, water inlet 3, bracket 4, base 5, water pump 6, wellbore 7, water outlet 8, water outlet device 9, vent 10, first turbulent body 11, pump body 61, guide vane body 62, impeller 63, spherical chamber 64, water inlet horn 65, body 651, turbulent hole 652, and second turbulent body 653. DETAILED DESCRIPTION

[0019] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings.

[0020] like Figure 1 As shown, an integrated prefabricated axial flow pump station of an embodiment of the utility model includes a cylinder 1, a grille 2, a water inlet 3, a bracket 4, a base 5, a water pump 6 and a well 7; the bracket 4 is arranged at the center position of the bottom of the cylinder 1, the base 5 is arranged on the upper part of the bracket 4, the water pump 6 is arranged on the upper part of the base 5, and the well 7 is sleeved on the outside of the base 5 and the water pump 6; the water inlet 3 is arranged on the outside of the cylinder wall on one side of the cylinder 1, the grille 2 is arranged on the inner surface wall of the cylinder 1 corresponding to the position of the water inlet 3, and a first turbulent body 11 is provided at the bottom of the cylinder wall of the cylinder 1.

[0021] In an integrated prefabricated axial flow pump station of the above structure, a plurality of first turbulent bodies 11 are arranged at the bottom of the cylinder wall of the cylinder 1, and the turbulent body 11 is arranged as an arc-shaped curved surface structure. When the water flows into the cylinder 1, the turbulent body 11 buffers the water flow, reduces the rotational motion of the water flow at the bottom of the cylinder 1, and achieves the effect of turbulence, so that the water flow can enter the water pump 6 more quickly and smoothly through the water inlet horn 65; at the same time, a second turbulent body 653 and a turbulent hole 652 are arranged on the water inlet horn 65, so that the water flow entering the water pump 6 has a secondary turbulent effect, so that when the water pump 6 does work on the water flow, more kinetic energy can be converted into pressure energy, the head of the water pump 6 is increased, and the working efficiency of the water pump 6 is improved.

[0022] The working process of an integrated prefabricated axial flow pump station provided by the embodiment of the utility model is as follows: sewage enters the interior of the cylinder 1 from the water inlet 3, and the grille 2 inside the cylinder 1 intercepts larger debris. Sewage enters the interior of the cylinder 1 downward along the cylinder wall of the cylinder 1, and the first turbulent body 11 at the bottom of the cylinder 1 buffers the sewage, hindering the water entering the cylinder 1 from rotating, thereby achieving the first turbulent effect. When the liquid level inside the cylinder 1 rises to the starting liquid level, the control system controls the water pump 6 to start. At this time, part of the water flow inside the cylinder 1 enters the water pump 6 through the water inlet horn 65. The water inlet horn 65 is provided with a second turbulent body 653, which performs secondary turbulence on the water entering the water pump 6 through the water inlet horn 65. Another part of the water flows into the water pump 6 through the turbulence holes 652 on the surface of the water inlet horn 65. The two water flows in different directions interact with each other and merge inside the water inlet horn 65, which can further slow down the rotation of the water body, so that the water flow can be lifted from bottom to top into the wellbore 7 after passing through the rotating impeller 63 more efficiently and quickly, and flow out of the cylinder 1 from the water outlet 8 at the upper part of the wellbore 7. That is, the water body inside the cylinder 1 forms two parts of fluid, and one part of the fluid flows to the lower end of the water inlet horn 65. During the flow of this part of the fluid, the first turbulent body 11 on the cylinder wall hinders the rotation of the water body, effectively slowing down the rotation of the water body outside the water inlet horn 65, so as to strengthen the turbulence effect outside the water inlet horn 65 and improve the head of the water pump. Another part of the fluid flows in different directions toward the periphery of the water inlet horn 65, and enters the water inlet horn through the turbulence holes 652, so that the fluid does not generate rotational motion outside the water pump, and the two fluids in different directions effectively slow down the rotational motion of the water body in the cylinder, thereby slowing down the rotation effect of the water body entering the lower part of the water inlet horn 65. By providing the first turbulence body 11, the second turbulence body 653 and the turbulence holes 652, energy loss can be reduced, the overall turbulence effect of the water body can be improved, kinetic energy can be converted into pressure energy, the head of the water pump 6 can be increased, and the working efficiency of the water pump 6 can be improved.

[0023] As a preferred example, the first turbulent body 11 is an arc-shaped curved surface structure; the number of the first turbulent bodies 11 is N, N≥4; the first turbulent bodies 11 are evenly distributed at the bottom of the cylinder wall of the cylinder 1. When the water enters the cylinder 1, the water entering the cylinder 1 is buffered to enhance the turbulent effect and effectively slow down the rotation of the water, so that the water can quickly and smoothly enter the water pump 6. Reduce energy loss and increase the head of the water pump.

[0024] As a preferred example, the water pump 6 includes a pump body 61, a guide vane body 62, an impeller 63, a spherical chamber 64 and a water inlet horn 65; the upper end of the guide vane body 62 is connected to the lower end of the pump body 61, the upper end of the spherical chamber 64 is connected to the lower end of the guide vane body 62, and the impeller 63 is arranged inside the spherical chamber 64; the upper end of the water inlet horn 65 is connected to the lower end of the spherical chamber 64, a rotor shaft is arranged in the pump body 61, and the rotor shaft passes through the guide vane body 62; the bottom of the rotor shaft is connected to the impeller 63. After the water flows through the water inlet horn 65, it is driven by the high-speed rotating impeller 63 to flow from the bottom to the top through the wellbore 7, and then flows out from the water outlet 8.

[0025] As a preferred example, the water inlet horn 65 includes a body 651, a turbulent hole 652 and a second turbulent body 653; the body 651 is a thin-walled bell mouth structure; the upper end diameter of the body 651 is smaller than the lower end diameter; the turbulent hole 652 is arranged on the surface of the body 651; the second turbulent body 653 is arranged on the inner wall of the body 651. The bell mouth is used to guide water to flow from bottom to top, so that the flow of water is more uniform, effectively slowing down the impact of water flow on the impeller, and making the pump run reliably. The second turbulent body 653 plays a secondary turbulent role on the fluid entering the water inlet horn 65, so that the high-speed rotating impeller lifts the water in the inner cavity of the water inlet horn 65 upward, and the water at the bottom of the cylinder 1 is quickly replenished into the water inlet horn. The second turbulent body 653 effectively slows down the rotational motion of water, reduces energy loss, and at the same time, slows down the flow rate of the fluid, further converts kinetic energy into pressure energy, so as to increase the head of the pump.

[0026] As a preferred example, the number of the second turbulent bodies 653 is M, 4≤M≤12; the second turbulent bodies 653 are arc-shaped curved surface structures and are evenly distributed on the inner wall of the body 651. Providing a plurality of evenly distributed second turbulent bodies can comprehensively slow down the rotation of water, reduce energy loss, and improve the operating efficiency of the water pump 6.

[0027] As a preferred example, the turbulence holes 652 are through holes, and the turbulence holes 652 are evenly distributed along the circumferential direction of the body 651. The turbulence holes 652 are through holes, and when the high-speed rotating impeller 63 quickly lifts the water in the water inlet horn 65 upward, the water outside the water inlet horn 65 is quickly filled. The water outside the water inlet horn 65 enters the water inlet horn from two paths, a part of the water moves from the bottom to the top from the lower end of the water inlet horn 65, and the other part of the water enters the inner cavity of the water inlet horn 65 horizontally from the circumferential direction of the turbulence holes 652 on the water inlet horn 65. Since the two streams of water have different directions, they mix and merge with each other in the inner cavity of the water inlet horn 65, which slows down the rotation of the water again, reduces energy loss, improves the turbulence effect of the water, converts kinetic energy into pressure energy, and further improves the pump head.

[0028] As a preferred example, the wellbore 7 is vertically arranged, and a water outlet device 9 is provided at the upper part of the wellbore 7, and the water outlet device 9 is a three-way structure; the bottom end of the water outlet device 9 is connected to the top of the wellbore 7, and a cover plate is provided at the top of the water outlet device 9, and the cover plate is sealedly connected to the top of the water outlet device 9, and the side wall of the water outlet device 9 passes through the wall of the cylinder 1 and extends out of the cylinder 1 to form a water outlet 8. The function of the wellbore 7 is to provide a channel for the water body that works through the water pump 6 to flow out of the cylinder 1. The water outlet device 9 with a three-way structure is provided at the top of the wellbore 7, so that the water body can smoothly pass through the wellbore 7 from bottom to top and then flow out of the cylinder 1 through the water outlet 8.

[0029] As a preferred example, an integrated prefabricated axial flow pump station further includes a vent 10, which is arranged at the top of the cylinder 1. The vent 10 is used to discharge harmful gases inside the cylinder 1.

[0030] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above specific embodiments. The above specific embodiments and the description in the specification are only for further illustrating the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the claims and their equivalents.

Claims

1. An integrated prefabricated axial flow pump station, characterized in that: The invention comprises a cylinder (1), a grille (2), a water inlet (3), a bracket (4), a base (5), a water pump (6) and a wellbore (7); the bracket (4) is arranged at the center position of the bottom of the cylinder (1), the base (5) is arranged on the upper part of the bracket (4), the water pump (6) is arranged on the upper part of the base (5), and the wellbore (7) is sleeved on the outside of the base (5) and the water pump (6); the water inlet (3) is arranged on the outside of the cylinder wall on one side of the cylinder (1), the grille (2) is arranged on the inner surface cylinder wall of the cylinder (1) corresponding to the position of the water inlet (3), and a first turbulent body (11) is arranged at the bottom of the cylinder wall of the cylinder (1).

2. The integrated prefabricated axial flow pump station according to claim 1, characterized in that: The first turbulent body (11) is an arc-shaped curved surface structure; the number of the first turbulent bodies (11) is N, where N≥4; and the first turbulent bodies (11) are evenly distributed at the bottom of the cylinder wall of the cylinder (1).

3. The integrated prefabricated axial flow pump station according to claim 2, characterized in that: The water pump (6) comprises a pump body (61), a guide vane body (62), an impeller (63), a spherical chamber (64) and a water inlet horn (65); the upper end of the guide vane body (62) is connected to the lower end of the pump body (61), the upper end of the spherical chamber (64) is connected to the lower end of the guide vane body (62), and the impeller (63) is arranged inside the spherical chamber (64); the upper end of the water inlet horn (65) is connected to the lower end of the spherical chamber (64), a rotor shaft is arranged in the pump body (61), and the rotor shaft passes through the guide vane body (62); the bottom of the rotor shaft is connected to the impeller (63).

4. The integrated prefabricated axial flow pump station according to claim 3 is characterized in that: The water inlet horn (65) comprises a body (651), a turbulent hole (652) and a second turbulent body (653); the body (651) is a thin-walled bell mouth structure; the upper end diameter of the body (651) is smaller than the lower end diameter; the turbulent hole (652) is arranged on the surface of the body (651); and the second turbulent body (653) is arranged on the inner wall of the body (651).

5. The integrated prefabricated axial flow pump station according to claim 4, characterized in that: The number of the second turbulent bodies (653) is M, 4≤M≤12; the second turbulent bodies (653) are arc-shaped curved surface structures and are evenly distributed on the inner wall of the body (651).

6. The integrated prefabricated axial flow pump station according to claim 4, characterized in that: The turbulence holes (652) are through holes, and the turbulence holes (652) are evenly distributed along the circumferential direction of the body (651).

7. The integrated prefabricated axial flow pump station according to claim 1, characterized in that: The wellbore (7) is arranged vertically, and a water outlet device (9) is arranged at the upper part of the wellbore (7), and the water outlet device (9) is a three-way structure; the bottom end of the water outlet device (9) is connected to the top of the wellbore (7), and a cover plate is arranged at the top of the water outlet device (9), and the cover plate is sealedly connected to the top of the water outlet device (9); the side wall of the water outlet device (9) passes through the wall of the cylinder (1) and extends out of the cylinder (1), forming a water outlet (8).

8. The integrated prefabricated axial flow pump station according to claim 1, characterized in that: It also comprises a vent (10), wherein the vent (10) is arranged at the top of the cylinder (1).

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