Vacuum cylinder for centrifugal water pump

Abstract

The vacuum cylinder comprises a cylinder body, one end of the cylinder body is provided with an opening and is detachably connected with a cylinder cover, the other end of the cylinder body is connected with a cylinder bottom, the cylinder bottom is in the shape of a circular truncated cone or a halfpace, and the side face, close to the cylinder cover, of the cylinder body is connected with a water inlet pipe. A water inlet flange is arranged at one end, opposite to the cylinder body, of the water inlet pipe; according to the vacuum cylinder for the centrifugal water pump, the cylinder bottom is in the shape of a circular truncated cone or a halfpace, so that the water storage capacity of the cylinder bottom can be larger, and the water diversion efficiency is guaranteed; and meanwhile, the shape of the cylinder bottom also ensures the working stability of the vacuum cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a vacuum cylinder used for a centrifugal water pump. Background Art

[0002] A centrifugal water pump needs to be connected to a vacuum cylinder at the water inlet end. Before starting the centrifugal water pump, water is added to the vacuum cylinder to help form negative pressure and improve work efficiency.

[0003] The vacuum cylinder currently used is in the shape of a straight cylinder and is placed upright when used. There are two problems:

[0004] The vertical cylinder is not very stable and may shake when the water pump is pumping water;

[0005] The vertical cylinder has a small amount of water storage at the bottom, which may affect the water diversion efficiency. Utility Model Content

[0006] In order to solve the deficiencies in the prior art, the utility model provides a vacuum cylinder for a centrifugal water pump. The vacuum cylinder for the centrifugal water pump has a cylinder bottom in the shape of a truncated cone or a stepped terrace, so that the water storage capacity of the cylinder bottom can be larger, thereby ensuring the water diversion efficiency. At the same time, the shape of the cylinder bottom also ensures the stability of the vacuum cylinder when it is working.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The utility model provides a vacuum cylinder for a centrifugal water pump, comprising a cylinder body, one end of the cylinder body is open and detachably connected with a cylinder cover, the other end of the cylinder body is connected with a cylinder bottom, the shape of the cylinder bottom is a round table or a terrace, a water inlet pipe is connected to the side of the cylinder body close to the cylinder cover, and the water inlet pipe is provided with a water inlet flange at one end of the cylinder body;

[0009] A water outlet pipe is connected to the side of the cylinder bottom, and a water outlet flange is arranged at one end of the water outlet pipe away from the cylinder bottom.

[0010] The utility model discloses a vacuum cylinder for a centrifugal water pump. Before use, a water outlet pipe is connected to the water inlet of the centrifugal water pump through a water outlet flange, and a water inlet pipe is connected to an external water diversion pipe through a water inlet flange. When in use, the cylinder cover is opened, and diversion water is injected into the cylinder body, and the diversion water is stored in the cylinder bottom. After the cylinder cover is closed, the centrifugal water pump can be started. Since the shape of the cylinder bottom is small at the top and large at the bottom, the stability of the cylinder body is ensured. At the same time, the shape of the cylinder bottom also ensures that the water storage capacity of the diversion water is large. A smaller vacuum cylinder can be adapted to a centrifugal water pump with a larger power range, and the applicability is stronger.

[0011] The vacuum cylinder for the centrifugal water pump of the utility model has a cylinder bottom in the shape of a truncated cone or a stepped platform, so that the water storage capacity of the cylinder bottom can be larger, thereby ensuring the water diversion efficiency. Meanwhile, the shape of the cylinder bottom also ensures the stability of the vacuum cylinder when it is working.

[0012] In a further technical solution, a sealing ring is provided between the cylinder cover and the cylinder body.

[0013] The sealing ring is provided to ensure the sealing of the cylinder body at the cylinder cover, thereby ensuring the sealing of the vacuum cylinder as a whole.

[0014] In a further technical solution, the water inlet flange and the water outlet flange are both sealing flanges.

[0015] By providing a sealing flange, the sealing at the pipeline interface is ensured, and the sealing of the vacuum cylinder as a whole is further ensured.

[0016] In a further technical solution, the water outlet pipe, the cylinder bottom, the cylinder body and the water inlet pipe are all connected by welding.

[0017] The various components of the vacuum cylinder are connected by welding, which reduces the assembly process and further ensures the overall sealing of the vacuum cylinder.

[0018] The beneficial effects are:

[0019] 1. The vacuum cylinder for centrifugal water pump of the utility model has a cylinder bottom in the shape of a truncated cone or a stepped platform, so that the water storage capacity of the cylinder bottom can be larger, thereby ensuring the water diversion efficiency. At the same time, the shape of the cylinder bottom also ensures the stability of the vacuum cylinder during operation.

[0020] 2. The sealing ring is provided to ensure the sealing of the cylinder body at the cylinder cover, thereby ensuring the sealing of the vacuum cylinder as a whole.

[0021] 3. By setting the sealing flange, the sealing at the pipeline interface is ensured, and the sealing of the vacuum cylinder as a whole is further ensured.

[0022] 4. The various parts of the vacuum cylinder are connected by welding to reduce the assembly process and further ensure the overall sealing of the vacuum cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of a vacuum cylinder for a centrifugal water pump according to an embodiment of the utility model.

[0024] 10. Cylinder body; 20. Cylinder bottom; 30. Cylinder cover; 40. Water inlet pipe; 41. Water inlet flange; 50. Water outlet pipe; 51. Water outlet flange. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings:

[0026] Example:

[0027] A vacuum cylinder for a centrifugal water pump, such as Figure 1 As shown, it comprises a barrel body 10, one end of the barrel body 10 is open and detachably connected with a barrel cover 30, the other end of the barrel body 10 is connected with a barrel bottom 20, the barrel bottom 20 is in the shape of a truncated cone or a stepped terrace, the bottom of the barrel body 10 is connected to the upper bottom of the barrel bottom 20, that is, the barrel bottom 20 presents a shape of being small at the top and large at the bottom, a water inlet pipe 40 is connected to the side of the barrel body 10 close to the barrel cover 30, and a water inlet flange 41 is provided at one end of the barrel body 10 with the water inlet pipe 40;

[0028] A water outlet pipe 50 is connected to the side of the cylinder bottom 20 , and a water outlet flange 51 is provided at one end of the water outlet pipe 50 away from the cylinder bottom 20 .

[0029] In this embodiment, the shape of the cylinder bottom 20 is a truncated cone, the cylinder body 10 is a circular tube, and the diameter of the cylinder body 10 is the same as the upper base diameter of the cylinder bottom 20 .

[0030] In a traditional vacuum cylinder, a water pipe and an exhaust valve are separately provided. When filling water, the water pipe and the exhaust valve must be opened first, then the water is injected, and then the water pipe and the exhaust valve are closed. The operation is cumbersome, and too many valves themselves may also leak.

[0031] In this embodiment, the cylinder cover 30 is provided, which is opened for water injection and closed after water injection, which is easy to operate and reduces air leakage points, and the overall structural sealing of the vacuum cylinder is better.

[0032] The utility model is used for the vacuum cylinder of the centrifugal water pump. Before use, the water outlet pipe 50 is connected to the water inlet of the centrifugal water pump through the water outlet flange 51, and the water inlet pipe 40 is connected to the external water diversion pipe through the water inlet flange 41. When in use, the cylinder cover 30 is opened, and diversion water is injected into the cylinder body 10, and the diversion water is stored in the cylinder bottom 20. After the cylinder cover 30 is closed, the centrifugal water pump can be started. Since the shape of the cylinder bottom 20 is small at the top and large at the bottom, the stability of the cylinder body 10 is guaranteed. At the same time, the shape of the cylinder bottom 20 also ensures that the water storage capacity of the diversion water is large, so that a smaller vacuum cylinder can be adapted to a centrifugal water pump with a larger power range, and the applicability is stronger.

[0033] The vacuum cylinder for the centrifugal water pump of the utility model is provided with a cylinder bottom 20 in the shape of a truncated cone or a stepped terrace, so that the water storage capacity of the cylinder bottom 20 can be larger, thereby ensuring the water diversion efficiency. Meanwhile, the shape of the cylinder bottom 20 also ensures the stability of the vacuum cylinder during operation.

[0034] In another embodiment, the shape of the cylinder bottom 20 is a terrace shape.

[0035] In another embodiment, a sealing ring is provided between the cylinder cover 30 and the cylinder body 10 .

[0036] The sealing ring is provided to ensure the sealing of the cylinder body 10 at the cylinder cover 30, thereby ensuring the sealing of the entire vacuum cylinder.

[0037] In another embodiment, the water inlet flange 41 and the water outlet flange 51 are both sealing flanges.

[0038] By providing a sealing flange, the sealing at the pipeline interface is ensured, and the sealing of the vacuum cylinder as a whole is further ensured.

[0039] In another embodiment, the water outlet pipe 50, the cylinder bottom 20, the cylinder body 10 and the water inlet pipe 40 are all connected by welding.

[0040] The various components of the vacuum cylinder are connected by welding, which reduces the assembly process and further ensures the overall sealing of the vacuum cylinder.

[0041] In another embodiment, the vacuum cylinder in this embodiment is a large vacuum cylinder, and the handle of the large vacuum cylinder is arranged on the side of the cylinder body.

[0042] In another embodiment, the vacuum cylinder in this embodiment is a small vacuum cylinder, and the handle of the small vacuum cylinder is set on the cylinder cover. Due to its small size and light weight, the handle is set on the cylinder cover for easy lifting, and at the same time it will not cause deformation to the cylinder cover and affect the sealing.

[0043] The above shows and describes the basic principle, 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 embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A vacuum cylinder for a centrifugal water pump, characterized in that: It comprises a cylinder body, one end of which is open and detachably connected to a cylinder cover, the other end of which is connected to a cylinder bottom, the shape of which is a truncated cone or a stepped cone, a water inlet pipe is connected to the side of the cylinder body close to the cylinder cover, and the water inlet pipe is provided with a water inlet flange at one end of the cylinder body; A water outlet pipe is connected to the side of the cylinder bottom, and a water outlet flange is arranged at one end of the water outlet pipe away from the cylinder bottom.

2. The vacuum cylinder for a centrifugal water pump according to claim 1, characterized in that: A sealing ring is arranged between the cylinder cover and the cylinder body.

3. The vacuum cylinder for a centrifugal water pump according to claim 1 or 2, characterized in that: The water inlet flange and the water outlet flange are both sealing flanges.

4. The vacuum cylinder for a centrifugal water pump according to claim 1, characterized in that: The water outlet pipe, the cylinder bottom, the cylinder body and the water inlet pipe are all connected by welding.

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