A stainless steel multistage centrifugal pump testing device

Abstract

This utility model relates to the field of centrifugal pump housing pressure technology, and provides a stainless steel multi-stage centrifugal pump testing device, including a water tank, a filter block installed on the top of the water tank, a test chamber installed on the top of the filter block, a fixing device detachably connected to the top of the test chamber, and a testing machine installed on the side wall of the test chamber. The filter block has two filter holes inside, each of which contains a filter screen, and the filter screen is detachably connected to the filter block. The filter screen can perform preliminary filtration of the liquid entering the water tank, and the inclined filter screen can prevent the filter screen from being blocked. The activated carbon filter layer can further filter the liquid after the filter screen is filtered, improving the filtration accuracy. This device can prevent the fragments and particles of the centrifugal pump from settling at the bottom of the water tank after the centrifugal pump breaks, and prevent the booster pump from sucking fragments and particles into its interior during operation.

Description

Technical Field

[0001] This utility model belongs to the field of centrifugal pump housing pressure technology, and in particular relates to a stainless steel multistage centrifugal pump testing device. Background Technology

[0002] Chinese utility model patent CN219301906U discloses a centrifugal pump casing pressure resistance testing device, including a base and a pump body. The top of the base has a placement groove, and the pump body is located inside the placement groove. A U-shaped mounting shell is fixedly installed on the top of the base. A mirror panel is fixedly installed on the inner rear wall of the mounting shell. A transparent protective shell is rotatably installed on the front side of the mounting shell. Electric telescopic rods with their output ends facing inwards are fixedly installed on both sides of the mounting shell. This patent, by incorporating a mirror panel, allows for a more comprehensive observation of the pump casing. The transparent protective shell effectively protects the tester, providing a more comprehensive view during pump casing testing and protecting the testing area from water pressure spray during pressure testing, thus preventing safety hazards.

[0003] However, the above-mentioned patents have the following shortcomings:

[0004] 1. The above-mentioned patent increases the drainage capacity of the base by setting multiple drainage holes on the base, so that the leaked water can be discharged into the water storage tank for recycling more quickly. This method of liquid recycling cannot filter the liquid entering the water storage tank. If the centrifugal pump fails to withstand the pressure and the shell breaks, the broken fragments and particles will enter the water storage tank along with the liquid. Utility Model Content

[0005] This utility model provides a stainless steel multistage centrifugal pump testing device, which aims to solve the problem that current liquid recycling methods cannot filter the liquid entering the storage tank. If the centrifugal pump fails to withstand the pressure and the casing breaks, the broken fragments and particles will enter the storage tank along with the liquid.

[0006] This invention is implemented as follows: a stainless steel multistage centrifugal pump testing device includes a water tank, a filter block installed on the top of the water tank, a test chamber installed on the top of the filter block, a fixing device detachably connected to the top of the test chamber, and a testing machine installed on the side wall of the test chamber. The filter block has two filter holes inside, each containing a filter screen, which is detachably connected to the filter block. The fixing device includes a top plate located on top of the test chamber and detachably connected to it. A lifting shell is installed on the top of the top plate, and a lifting rod is threadedly connected to the inside of the lifting shell. A lifting nut is threadedly connected to the side wall of the lifting rod. A fixing plate is horizontally arranged inside the test chamber, and the fixing plate is connected to the lifting nut. In this design, the filter screen filters the liquid entering the water tank. The lifting rod and lifting nut allow adjustment of the height of the fixing plate, thereby securing the centrifugal pump inside the test chamber.

[0007] Preferably, the bottom of both ends of the filter screen has a connecting block, and each connecting block is fixedly connected to the filter block. The filter screen is detachably connected to the filter block through two connecting blocks. In this solution, the connecting blocks facilitate the replacement of the filter screen.

[0008] Preferably, an activated carbon filter layer is horizontally arranged inside the water tank. An insert is installed at one end of the activated carbon filter layer, and the insert is detachably connected to the water tank. A mounting plate is provided at the bottom of the other end of the activated carbon filter layer, and the mounting plate is fixedly connected to the water tank. In this solution, by setting an activated carbon layer, the activated carbon layer can further filter the liquid.

[0009] Preferably, a lifting plate is installed on the side wall of the lifting nut, and a column is provided at the bottom of the lifting plate. One end of the column is fixedly connected to the lifting plate, and the other end of the column passes through the top plate and is fixedly connected to the fixing plate. A lifting groove is provided on the inner wall of the lifting shell, and a lifting block is provided in the lifting groove. The lifting block is fixedly connected to the lifting nut. In this scheme, by setting the lifting block and the lifting groove, the lifting block and the lifting groove can provide guidance for the vertical movement of the lifting nut.

[0010] Preferably, the bottom of both ends of the top plate has a buckle, and the interior of the test box has a slot corresponding to the buckle. The top plate is detachably connected to the test box through the buckle and the slot. In this solution, by setting the buckle and the slot, it is easy to remove the top plate from the test box.

[0011] Preferably, the testing machine includes cylinder one and cylinder two, which are located on both sides of the testing box and are fixedly connected to the testing box. Clamping blocks one and two are respectively installed on the output shafts of cylinder one and cylinder two. A booster pump is installed on the side wall of the water tank. The inlet of the booster pump is connected to the water tank. The booster pump has a hose. One end of the hose is connected to the outlet of the booster pump, and the other end of the hose is connected to clamping block two.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By incorporating a filter screen and an activated carbon filter layer, the filter screen can perform preliminary filtration of the liquid entering the water tank, and the inclined filter screen can prevent it from becoming clogged. The activated carbon filter layer can further filter the liquid after it has been filtered by the filter screen, improving the filtration accuracy. This allows the device to prevent the fragments and particles from settling at the bottom of the water tank after the centrifugal pump breaks down, and prevents the booster pump from sucking fragments and particles into the tank during operation.

[0014] 2. By setting up a fixing device, the lifting rod inside the fixing device can rotate, which can cause the lifting nut to drive the lifting plate to move in the vertical direction, thereby making the fixing plate contact the top of the centrifugal pump in the test box, thus fixing the centrifugal pump against the test box. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 Enlarged view of the structure at point A on the water tank;

[0017] Figure 3 for Figure 1 Enlarged view of the structure at point B on the test box;

[0018] Figure 4 This is a partial sectional view of the lifting shell of this utility model;

[0019] In the picture:

[0020] 1. Water tank; 2. Filter block; 3. Test chamber; 4. Fixing device; 5. Filter hole; 6. Filter screen; 7. Test machine; 8. Activated carbon filter layer; 9. Insert block; 10. Support plate; 11. Connecting block;

[0021] 41. Top plate; 42. Lifting shell; 43. Lifting rod; 44. Lifting nut; 45. Fixing plate; 46. Lifting plate; 47. Column; 48. Lifting groove; 49. Lifting block; 50. Buckle; 51. Slot; 52. Motor;

[0022] 71. Cylinder 1; 72. Cylinder 2; 73. Clamping block 1; 74. Clamping block 2; 75. Booster pump; 76. Hose. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0024] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0025] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Please see Figure 1-4A stainless steel multistage centrifugal pump testing device includes a water tank 1, a filter block 2 installed on the top of the water tank 1, a test chamber 3 installed on the top of the filter block 2, a fixing device 4 detachably connected to the top of the test chamber 3, a testing machine 7 installed on the side wall of the test chamber 3, the filter block 2 has two filter holes 5 inside, each filter hole 5 has a filter screen 6, and the filter screen 6 is detachably connected to the filter block 2; the fixing device 4 includes a top plate 41, the top plate 41 is located on the top of the test chamber 3 and is detachably connected to the test chamber 3, a lifting shell 42 is installed on the top of the top plate 41, a lifting rod 43 is threadedly connected inside the lifting shell 42, a lifting nut 44 is threadedly connected to the side wall of the lifting rod 43, and a fixing plate 45 is horizontally arranged inside the test chamber 3, the fixing plate 45 is connected to the lifting nut 44.

[0029] Specifically, the side wall of the water tank 1 may also have a drain pipe, which is used to drain the liquid in the water tank 1 to the outside; the side wall of the drain pipe has a pipe cover, which can prevent the liquid in the water tank 1 from being discharged to the outside. The filter screen 6 is inclinedly arranged in the filter hole 5, and the inclined arrangement of the filter screen 6 can prevent the mesh of the filter screen from being completely blocked. The top of the lifting shell 42 is also equipped with a motor 52, which is used to drive the lifting rod 43 to rotate. The side wall of the lifting rod 43 has external threads, and the interior of the lifting nut 44 has an internal threaded hole. The device is also equipped with a battery and a control button. The battery supplies power to the drive device of the device, and the control button is used to control the operation of the drive device of the device.

[0030] Furthermore, each end of the filter screen 6 has a connecting block 11 at its bottom. Each connecting block 11 is fixedly connected to the filter block 2, and the filter screen 6 is detachably connected to the filter block 2 through two connecting blocks 11.

[0031] Specifically, the connecting block 11 also has a slot 51 inside, and the bottom of both ends of the filter screen 6 also has a buckle 50, so that the filter screen 6 can be installed on the connecting block 11 through the buckle 50 and the slot 51.

[0032] Furthermore, an activated carbon filter layer 8 is horizontally arranged inside the water tank 1. An insert 9 is installed at one end of the activated carbon filter layer 8, and the insert 9 is detachably connected to the water tank 1. The bottom of the other end of the activated carbon filter layer 8 has a mounting plate 10, which is fixedly connected to the water tank 1.

[0033] Specifically, the side wall of the insert 9 has bolts, so that the insert 9 is installed on the water tank 1 by bolts.

[0034] Furthermore, a lifting plate 46 is installed on the side wall of the lifting nut 44. The bottom of the lifting plate 46 has a column 47. One end of the column 47 is fixedly connected to the lifting plate 46, and the other end of the column 47 passes through the top plate 41 and is fixedly connected to the fixing plate 45. The inner wall of the lifting shell 42 has a lifting groove 48. The lifting groove 48 contains a lifting block 49, and the lifting block 49 is fixedly connected to the lifting nut 44.

[0035] Furthermore, the bottom of both ends of the top plate 41 has a buckle 50, and the interior of the test box 3 has a slot 51 corresponding to the buckle 50. The top plate 41 is detachably connected to the test box 3 through the buckle 50 and the slot 51.

[0036] Furthermore, the testing machine 7 includes cylinder 1 71 and cylinder 2 72, which are located on both sides of the testing chamber 3 and are fixedly connected to the testing chamber 3. Clamping blocks 1 73 and 2 74 are respectively installed on the output shafts of cylinder 1 71 and cylinder 2 72. A booster pump 75 is installed on the side wall of the water tank 1. The inlet of the booster pump 75 is connected to the water tank 1. The booster pump 75 has a hose 76. One end of the hose 76 is connected to the outlet of the booster pump 75, and the other end of the hose 76 is connected to clamping block 2 74.

[0037] In summary, by setting up a filter screen 6 and an activated carbon filter layer 8, the filter screen 6 can perform preliminary filtration of the liquid entering the water tank 1, and the inclined filter screen 6 can prevent it from being clogged; while the activated carbon filter layer 8 can further filter the liquid filtered by the filter screen 6, improving the filtration accuracy. This allows the device to prevent the fragments and particles from settling at the bottom of the water tank 1 after the centrifugal pump breaks down, and prevents the booster pump 75 from sucking fragments and particles into its interior during operation. After the lifting rod 43 in the fixing device 4 rotates, the lifting nut 44 can drive the lifting plate 46 to move vertically, thereby bringing the fixing plate 45 into contact with the top of the centrifugal pump in the test chamber 3, thus fixing the centrifugal pump against the test chamber 3.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stainless steel multistage centrifugal pump testing device, comprising a water tank (1), characterized in that: A filter block (2) is installed on the top of the water tank (1), and a test box (3) is installed on the top of the filter block (2). A fixing device (4) is detachably connected to the top of the test box (3). A test machine (7) is installed on the side wall of the test box (3). The filter block (2) has two filter holes (5) inside, and each filter hole (5) has a filter screen (6). The filter screen (6) is detachably connected to the filter block (2). The fixing device (4) includes a top plate (41), which is located on the top of the test box (3) and is detachably connected to the test box (3). A lifting shell (42) is installed on the top of the top plate (41). A lifting rod (43) is threaded inside the lifting shell (42). A lifting nut (44) is threaded on the side wall of the lifting rod (43). A fixing plate (45) is horizontally arranged inside the test box (3). The fixing plate (45) is connected to the lifting nut (44).

2. The stainless steel multistage centrifugal pump testing device as described in claim 1, characterized in that: The filter screen (6) has connecting blocks (11) at the bottom of both ends. Each connecting block (11) is fixedly connected to the filter block (2). The filter screen (6) is detachably connected to the filter block (2) through two connecting blocks (11).

3. The stainless steel multistage centrifugal pump testing device as described in claim 1, characterized in that: An activated carbon filter layer (8) is horizontally arranged inside the water tank (1). A plug (9) is installed at one end of the activated carbon filter layer (8). The plug (9) is detachably connected to the water tank (1). A mounting plate (10) is provided at the bottom of the other end of the activated carbon filter layer (8). The mounting plate (10) is fixedly connected to the water tank (1).

4. The stainless steel multistage centrifugal pump testing device as described in claim 1, characterized in that: A lifting plate (46) is installed on the side wall of the lifting nut (44). The bottom of the lifting plate (46) has a column (47). One end of the column (47) is fixedly connected to the lifting plate (46), and the other end of the column (47) passes through the top plate (41) and is fixedly connected to the fixing plate (45). The inner wall of the lifting shell (42) has a lifting groove (48). The lifting groove (48) has a lifting block (49). The lifting block (49) is fixedly connected to the lifting nut (44).

5. The stainless steel multistage centrifugal pump testing device as described in claim 1, characterized in that: The top plate (41) has buckles (50) at both ends of its bottom. The test box (3) has slots (51) inside that correspond to the buckles (50). The top plate (41) is detachably connected to the test box (3) through the buckles (50) and the slots (51).

6. The stainless steel multistage centrifugal pump testing device as described in claim 1, characterized in that: The testing machine (7) includes cylinder one (71) and cylinder two (72). Cylinder one (71) and cylinder two (72) are located on both sides of the testing box (3) and are fixedly connected to the testing box (3). Clamping block one (73) and clamping block two (74) are respectively installed on the output shaft of cylinder one (71) and cylinder two (72). A booster pump (75) is installed on the side wall of the water tank (1). The inlet of the booster pump (75) is connected to the water tank (1). The booster pump (75) has a hose (76). One end of the hose (76) is connected to the outlet of the booster pump (75), and the other end of the hose (76) is connected to the clamping block two (74).

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