One-time pouring structure for centrifugal pump and pouring method

Abstract

The invention discloses a one-time pouring structure and method for a centrifugal pump, and the pouring structure comprises a pouring frame body which comprises a plurality of pieces of channel steel perpendicular to one another; the embedded parts are evenly fixed to the top of the pouring frame body, the embedded parts are provided with alignment bolt plates, and sleeve buckles used for fixing the centrifugal pump are arranged at the tops of the embedded parts; the heat dissipation copper pipes are bound on the inner side of the pouring frame body through steel bars; the reinforcing mesh wraps the periphery of the pouring frame body and is used for shaping concrete on the periphery of the pouring frame body. According to the technical scheme, the embedded part is fixed to the top of the pouring frame body, the multiple heat dissipation copper pipes are bound in the pouring frame body, the centrifugal pump is placed at the top of the embedded part so as to position the sleeve buckles, and limiting on the outer side of the pouring frame body is achieved through the reinforcing mesh so as to complete concrete pouring and shaping; the concrete foundation pier is poured in a one-time pouring mode, and the situation that the concrete foundation pier is prone to cracking and is not firm due to secondary pouring is avoided.

Description

Technical Field

[0001] The invention relates to a one-time casting structure and a casting method for a centrifugal pump, belonging to the technical field of concrete casting. Background Art

[0002] During the installation and fixation process of existing large water pumps, it is necessary to fix them to the ground by making concrete piers. The commonly used method is the secondary pouring method, that is, during the first concrete pouring process, anchor bolt holes are reserved at the reserved places according to the predetermined design by using wooden sticks and other tools; and after completing the first pouring, the above tools are removed, and then the shims are placed and the pre-installed water pump unit is hoisted to the place for inspection, and the secondary pouring is carried out after confirmation.

[0003] However, the above-mentioned secondary pouring method also has certain shortcomings. For example, the secondary pouring method is not as good as the single pouring method in terms of stability and strength. Therefore, it may cause cracks in the poured concrete pier. More seriously, the centrifugal pump may cause abnormal wear of components such as bearings and impellers due to the above-mentioned cracks and other instability, which may affect the service life. Summary of the invention

[0004] Therefore, the purpose of the present invention is to provide a one-time casting structure and casting method for a centrifugal pump, which is used to cast the concrete foundation used by the water pump once, thereby overcoming the problem that the secondary casting easily causes the concrete foundation to be unstable.

[0005] In order to achieve the above object, the present invention provides a one-time casting structure for a centrifugal pump, comprising:

[0006] The casting frame includes a plurality of mutually perpendicular channel steels connected by bolts;

[0007] At least two embedded parts are evenly fixed on the top of the casting frame, the embedded parts are provided with alignment bolt plates relative to the outer edges of the centrifugal pumps, and the tops of the embedded parts are provided with buckles for fixing the centrifugal pumps;

[0008] Multiple heat dissipation copper tubes are tied to the inner side of the casting frame through steel bars;

[0009] The steel mesh is wrapped around the casting frame and is used to shape the concrete around the casting frame.

[0010] Furthermore, the casting frame includes a first casting frame and a second casting frame higher than the first casting frame;

[0011] The embedded parts include first embedded parts and second embedded parts. The first embedded parts are evenly fixed on the top of the first casting frame; and the second embedded parts are fixed on the top of the second casting frame.

[0012] Furthermore, the top of the embedded part extends to the outside of the steel mesh.

[0013] Further, the cast structure is provided with a plurality of embedded reinforcement bars;

[0014] The four corners of the embedded reinforcement and the embedded parts are connected by bolts and are used for leveling the centrifugal pump.

[0015] Furthermore, the first casting frame includes four groups of first transverse channel steels and four groups of first vertical channel steels fixed horizontally and vertically, and also includes two groups of first longitudinal channel steels perpendicular to the plane formed by the first transverse channel steels and the first longitudinal channel steels.

[0016] Furthermore, the second casting frame includes four groups of second transverse channel steels and four groups of second vertical channel steels fixed horizontally and vertically, and also includes three groups of second longitudinal channel steels perpendicular to the plane formed by the second transverse channel steels and the second longitudinal channel steels.

[0017] In a second aspect, the present invention further provides a one-time casting method for a centrifugal pump, using the one-time casting structure for a centrifugal pump provided in the first aspect, comprising:

[0018] Fix the casting frame, place the embedded parts on the top of the casting frame and fix them;

[0019] Confirm whether the position of the embedded parts is level;

[0020] If so, use a centrifugal pump to confirm the buckle position of the embedded parts;

[0021] Use steel bars to tie and cast the frame, and bury the heat dissipation copper pipes;

[0022] Add steel mesh to wrap the outer periphery of the casting frame and then cast;

[0023] After pouring, the centrifugal pump is fine-tuned using the alignment bolt plates located at the edge of the embedded parts.

[0024] By adopting the above technical scheme, an embodiment of the present invention provides a one-time casting structure and casting method for a centrifugal pump. The one-time casting structure is achieved by fixing the embedded parts on the top of the casting frame, and tying a plurality of heat dissipation copper tubes inside the casting frame, and placing the centrifugal pump to be placed on the top of the embedded parts to position the buckle, and then using a steel mesh to limit the outside of the casting frame to complete the concrete casting and shaping, thereby realizing the casting of the concrete pier through a one-time casting method, avoiding the situation in which the concrete pier is easily cracked and unstable due to the secondary casting, thereby affecting the service life of the centrifugal pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A top view of a one-time casting structure for a centrifugal pump provided by the present invention;

[0026] Figure 2 A side view of a one-time casting structure for a centrifugal pump provided by the present invention;

[0027] Figure 3 A distribution diagram of embedded parts in a one-time casting structure for a centrifugal pump provided by the present invention;

[0028] Figure 4 A flow chart for obtaining the overall stiffness coefficient in a method for predicting the natural fundamental frequency of a dry-type air-core reactor provided by the present invention.

[0029] In the figure: 1. casting frame; 2. channel steel; 3. embedded parts; 4. heat dissipation copper tube; 5. steel mesh; 6. first casting frame; 7. second casting frame; 8. first embedded parts; 9. second embedded parts; 10. embedded bars; 11. buckles. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below through the accompanying drawings and specific implementation methods. The concrete foundation of a large centrifugal pump is often made by a secondary casting method, but this casting method often causes cracks in the concrete foundation, thereby affecting the service life of the centrifugal pump.

[0031] Embodiment 1

[0032] like Figures 1 to 3 As shown, the present invention provides a one-time casting structure for a centrifugal pump, comprising:

[0033] The casting frame includes a plurality of mutually perpendicular channel steels connected by bolts; the channel surface of the channel steel is adjusted in direction according to actual use needs. Since the centrifugal pump needs to be placed on the top of the casting frame through embedded parts in the later use process, in order to achieve the purpose of fitting the external shape of the centrifugal pump, the casting frame adopts two integrated frames of different heights spliced ​​into a whole, that is, the casting frame includes a first casting frame and a second casting frame higher than the first casting frame.

[0034] At least two embedded parts, preferably ladder-shaped metal fixing parts, are evenly fixed to the top of the casting frame. The embedded parts are provided with alignment bolt plates relative to the outer edge of the centrifugal pump, and the top of the embedded parts is provided with a buckle for fixing the centrifugal pump. During use, the centrifugal pump will be placed on the top of the above-mentioned multiple embedded parts. The function of the alignment bolt plates is to adjust the horizontal centering and alignment of the coupling between the centrifugal pump and the motor. And because the casting frame is divided into a first casting frame and a second casting frame, the embedded parts include a first embedded part and a second embedded part, and the first embedded part is evenly fixed to the top of the first casting frame; the second embedded part is fixed to the top of the second casting frame. The first embedded part and the second embedded part can adopt embedded parts of the same or different structures, and the direction of the embedded parts can also be adjusted according to actual needs. In a preferred embodiment, the casting structure is provided with a plurality of embedded bars; the embedded bars are connected to the four corners of the embedded parts by bolts for the elevation leveling of the centrifugal pump.

[0035] For example, 4 first embedded parts are evenly fixed on the top of the first casting frame, and 4 second embedded parts are evenly fixed on the top of the second casting frame, and the first embedded parts and the second embedded parts are embedded in a horizontal or vertical direction. The top is placed by placing a centrifugal pump to determine the position of the buckle, and a total of 8 alignment bolt plates are set on the first embedded parts and the second embedded parts, and a total of 16 alignment bolts are set on the alignment bolt plates relative to the outer edge of the centrifugal pump.

[0036] In addition, the first casting frame includes four groups of first transverse channel steels and four groups of first vertical channel steels fixed horizontally and vertically, and also includes two groups of first longitudinal channel steels perpendicular to the plane formed by the first transverse channel steels and the first longitudinal channel steels. The second casting frame includes four groups of second transverse channel steels and four groups of second vertical channel steels fixed horizontally and vertically, and also includes three groups of second longitudinal channel steels perpendicular to the plane formed by the second transverse channel steels and the second longitudinal channel steels.

[0037] A plurality of heat dissipation copper tubes are tied to the inner side of the casting frame by steel bars; the steel mesh wraps around the casting frame and is used to shape the concrete around the casting frame. Heat is dissipated during the casting process of the casting frame. When the steel mesh covers the top of the casting frame, the top of the embedded part extends to the outside of the steel mesh, and the centrifugal pump is fixed by a buckle.

[0038] A one-time casting structure for a centrifugal pump provided in an embodiment of the present invention first fixes the embedded parts on the top of the casting frame, and binds a plurality of heat dissipation copper tubes inside the casting frame, and places the centrifugal pump to be placed on the top of the embedded parts to position the buckle, and then uses a steel mesh to limit the outside of the casting frame to complete the concrete casting and shaping, thereby realizing the casting of the concrete pier through a one-time casting method, avoiding the situation in which the concrete pier is easily cracked and unstable due to the use of secondary casting, thereby affecting the service life of the centrifugal pump.

[0039] Embodiment 2

[0040] Based on the first embodiment, the present invention provides an embodiment of a casting method for a centrifugal pump in one casting process, such as Figure 4 As shown, specifically including:

[0041] S10: Fix the casting frame, place the embedded parts on the top of the casting frame and fix them; in a specific implementation, the casting frame adopts a horizontal direction of 4000×2000, wherein the number and direction of the embedded parts are adjusted according to the size of the casting frame;

[0042] S20: Confirm whether the position of the embedded part is horizontal; the adjustment method can be through the threaded holes at the four corners of the embedded part and the threaded connection with the embedded reinforcement and adjustment;

[0043] S30: If yes, use a centrifugal pump to confirm the buckle position of the embedded part; the centrifugal pump is placed in a hoisting manner, and the function of the centrifugal pump is not only to confirm the buckle position, but also to level the embedded part as a whole.

[0044] S40: Casting the frame by tying with steel bars, and burying heat dissipation copper pipes; it should be noted that the heat dissipation copper pipes are preferably arranged in the same direction to facilitate tying with steel bars and achieve the purpose of heat dissipation.

[0045] S50: Add steel mesh to wrap the outer periphery of the casting frame and then cast;

[0046] S60: After the pouring is completed, the centrifugal pump is fine-tuned using the alignment bolt plate located at the edge of the embedded part. As in the above embodiment, the alignment bolt plate is provided with a total of 16 alignment bolts relative to the outer edge of the centrifugal pump, which can achieve 16 guards and auxiliary adjustment with a precision of 2.0 mm to achieve the centering and alignment of the horizontal concentricity of the coupling of the centrifugal pump and the motor.

[0047] A casting method for a centrifugal pump provided in an embodiment of the present invention adopts the same technical means as the one-time casting structure for a centrifugal pump, and achieves the same technical effect, which will not be described in detail here.

Claims

1. A one-time casting structure for a centrifugal pump, characterized in that: include: The casting frame includes a plurality of mutually perpendicular channel steels connected by bolts; At least two embedded parts are evenly fixed on the top of the casting frame, the embedded parts are provided with alignment bolt plates relative to the outer edges of the centrifugal pumps, and the tops of the embedded parts are provided with buckles for fixing the centrifugal pumps; A plurality of heat dissipation copper tubes are tied to the inner side of the casting frame by steel bars; The steel mesh wraps around the casting frame and is used to shape the concrete around the casting frame.

2. The one-time casting structure for a centrifugal pump according to claim 1, characterized in that: The casting frame includes a first casting frame and a second casting frame higher than the first casting frame; The embedded parts include first embedded parts and second embedded parts. The first embedded parts are evenly fixed on the top of the first casting frame; the second embedded parts are fixed on the top of the second casting frame.

3. The one-time casting structure for a centrifugal pump according to claim 1 or 2, characterized in that: The top of the embedded part extends to the outside of the steel mesh.

4. The one-time casting structure for a centrifugal pump according to claim 1 or 2, characterized in that: The casting structure is provided with a plurality of embedded reinforcement bars; The embedded reinforcement is connected to the four corners of the embedded part by bolts and is used for leveling the centrifugal pump.

5. The one-time casting structure for a centrifugal pump according to claim 2, characterized in that: The first casting frame includes four groups of first transverse channel steels and four groups of first vertical channel steels fixed horizontally and vertically, and also includes two groups of first longitudinal channel steels perpendicular to the plane formed by the first transverse channel steels and the first longitudinal channel steels.

6. The one-time casting structure for a centrifugal pump according to claim 2, characterized in that: The second casting frame includes four groups of second transverse channel steels and four groups of second vertical channel steels fixed horizontally and vertically, and also includes three groups of second longitudinal channel steels perpendicular to the plane formed by the second transverse channel steels and the second longitudinal channel steels.

7. A one-time casting method for a centrifugal pump, applied to the one-time casting structure for a centrifugal pump according to claim 1, characterized in that: include: Fixing the casting frame, placing the embedded parts on the top of the casting frame and fixing them; Confirm whether the position of the embedded part is horizontal; If so, using a centrifugal pump to confirm the buckle position of the embedded part; The casting frame is tied with steel bars, and heat dissipation copper pipes are buried; Add steel mesh to wrap the outer periphery of the casting frame and then perform casting; After the pouring is completed, the centrifugal pump is fine-tuned using the alignment bolt plate located at the edge of the embedded part.

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