Water absorption testing device for concrete of pumped storage power station

Abstract

The utility model discloses a pumped storage power station concrete water absorption testing device which comprises an experimental water tank, an equipment box arranged on one side of the experimental water tank, a fixed pulley assembly arranged on the top of the box wall between the experimental water tank and the equipment box, a telescopic part arranged at the bottom of an inner cavity of the equipment box in the vertical direction, and a sliding plate arranged on the top of the telescopic part. The upper side of the sliding plate is connected with one end of a pull-type weighing sensor, the other end of the pull-type weighing sensor is provided with one end of a rope, and the other end of the rope bypasses the fixed pulley assembly, extends into the experiment water tank and is connected with a supporting plate. The device can realize automatic operation, is convenient for experimenters to carry out detection operation, not only improves the working efficiency and saves manpower, but also can meet the experiment requirements, improves the experiment efficiency and reduces the consumption of experiment manpower and material resources.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of concrete water absorption test devices of pumped storage power station, belong to concrete performance detection technical field. BACKGROUND

[0002] Mussel invasion and biofouling form serious harm to water conveyance, water supply pipeline and other hydraulic engineering facilities, and its prevention is a worldwide problem, which urgently needs to study safe and effective prevention measures. The facilities of water conveyance, water supply pipeline and other pumped storage power stations are mostly made of high-strength concrete, which is widely used due to its high compressive strength, strong deformation resistance, large density and low porosity.

[0003] Mussels adhere to the concrete structure by secreting byssus, which gradually extends from the surface to the inside of the concrete, causing cracks in the concrete cover and aggregate to fall off, thus allowing water to enter the concrete and causing steel corrosion. In addition, the precipitation of cement hydration products provides an excellent environment for the growth of microorganisms and algae. Therefore, the study of the erosion process of mussels on concrete has great significance for the prevention of mussel invasion. Therefore, it is necessary to explore the performance damage of concrete after being eroded by mussels. Concrete water absorption is one of the important indicators. The existing concrete water absorption test is generally manually operated, which is low in work efficiency and prone to errors or mistakes due to human error. Moreover, the operation is inconvenient and cannot meet the current demand for a large number of experiments. Therefore, we propose a concrete water absorption test device for pumped storage power stations. SUMMARY

[0004] The utility model aims at providing a concrete water absorption test device for pumped storage power stations, which is easy to operate and can meet the current experimental requirements and effectively improve the experimental efficiency.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a concrete water absorption test device for pumped storage power stations, comprising an experimental water tank, a device box is arranged on one side of the experimental water tank, a fixed pulley assembly is arranged on the top of the tank wall between the experimental water tank and the device box, a telescopic part is arranged in the vertical direction at the bottom of the inner cavity of the device box, a sliding plate is arranged on the top of the telescopic part, one end of a pull-type load cell is connected to the upper side of the sliding plate, one end of a rope is arranged at the other end of the pull-type load cell, the other end of the rope is extended to the experimental water tank through the fixed pulley assembly and connected to a supporting plate.

[0006] The aforementioned concrete water absorption test device for pumped storage power stations is characterized in that a placing rack is horizontally arranged in the middle of the inner cavity of the experimental water tank, and the placing rack is in a hollow rib shape.

[0007] The preceding water storage power station concrete water absorption test device, the surface of the supporting plate is provided with through holes, the through holes are regularly arranged on the surface of the supporting plate, the end of the rope is connected with at least three fixing ropes, the end of the fixing rope away from the rope is connected with a bolt, and the bolt is fixedly inserted into the through hole on the surface of the supporting plate.

[0008] The preceding water storage power station concrete water absorption test device, the bolt comprises a stick-shaped main body, the top end of the main body is connected with the fixing rope, the bottom end of the main body is inserted into the through hole, mounting grooves are formed on the two sides of the bottom end of the main body, limit pieces are slidably connected in the mounting grooves, the outer end of the limit piece extends out of the mounting groove and is connected with the through hole on the lower side, and elastic elements are arranged between the inner end of the limit piece and the inner wall of the mounting groove.

[0009] The preceding water storage power station concrete water absorption test device, the outer wall of the limit piece is in a slope shape and is recessed towards the inner side.

[0010] The preceding water storage power station concrete water absorption test device, the bottom end of the main body of the bolt is in a conical shape.

[0011] The preceding water storage power station concrete water absorption test device, the side wall of the experimental water tank is provided with a water inlet and a water outlet, the water inlet and the water outlet are provided with valves, and the water outlet is arranged at the bottom of the experimental water tank.

[0012] The preceding water storage power station concrete water absorption test device further comprises a control host and a display, the display, the telescopic part and the pull-type weighing sensor are electrically connected with the control host, and the control host is further connected with a control panel, a timer and a buzzer.

[0013] Compared with the prior art, the pull-type weighing sensor is used for weighing the concrete test piece, automatic operation can be realized, the detection operation of the experimental personnel is facilitated, the work efficiency is improved, the manpower is saved, the data change can be monitored in real time through the control host, the demand of the experiment can be met, the experimental efficiency is improved, the consumption of manpower and material resources is reduced, and the cost advantage is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is a placing rack structural schematic diagram of the utility model;

[0016] Figure 3 It is a supporting plate installation structure front view of the utility model;

[0017] Figure 4 It is a supporting plate plan view of the utility model;

[0018] Figure 5 Is the bolt installation structure schematic diagram of the utility model.

[0019] The drawing reference: 1-experimental water tank, 2-equipment box, 3-fixed pulley assembly, 4-telescopic component, 5-sliding plate, 6-pull type load cell, 7-rope, 8-supporting plate, 9-putting rack, 10-through hole, 11-fixed rope, 12-bolt, 13-main body, 14-installation slot, 15-limiting piece, 16-elastic element, 17-control host computer, 18-display, 19-concrete test piece.

[0020] The utility model will be further described below in combination with the drawings and specific embodiment. Specific embodiment

[0021] The utility model discloses an embodiment 1: a pumped storage power station concrete water absorption test device, including experimental water tank 1, the inner wall of experimental water tank 1 adopts stainless steel material, and waterproof anticorrosive wear -resisting, and one side of experimental water tank 1 is provided with equipment box 2, and the top of the tank wall between experimental water tank 1 and equipment box 2 is provided with fixed pulley assembly 3, and fixed pulley assembly 3 includes the support of setting in the top of the tank wall between experimental water tank 1 and equipment box 2, and is horizontally arranged, and two ends are respectively placed in the center place above experimental water tank 1 and equipment box 2, and both ends are provided with fixed pulley, and the bottom of the inner chamber of equipment box 2 is provided with telescopic component 4 along the vertical direction, and preferably is electric telescopic rod, and the telescopic length can be controlled, and the top of telescopic component 4 is provided with sliding plate 5, and sliding plate 5 is slidably installed in equipment box 5, and it is convenient to position sliding track, prevent shaking, and the upper side of sliding plate 5 is connected with one end of pull type load cell 6, and the other end of pull type load cell 6 is provided with one end of rope 7, and the other end of rope 7 is extended to experimental water tank 1 and is connected with supporting plate 8 after passing through fixed pulley assembly 3, and supporting plate 8 is used to place concrete test piece 19, and telescopic component 4 telescopic can make supporting plate 8 move up and down, make supporting plate 8 drive concrete test piece 19 immerse, and the water in experimental water tank 1 is taken out.

[0022] The utility model discloses an embodiment 2: a pumped storage power station concrete water absorption test device, including experimental water tank 1, the inner wall of experimental water tank 1 adopts stainless steel material, waterproof anticorrosive wear -resisting, the one side of experimental water tank 1 is provided with equipment box 2, the top of the box wall between experimental water tank 1 and equipment box 2 is provided with fixed pulley assembly 3, fixed pulley assembly 3 includes the support of setting in the top of the box wall between experimental water tank 1 and equipment box 2, between horizontal setting, two ends are placed in the center place above experimental water tank 1 and equipment box 2 respectively, and both ends are provided with fixed pulley, the bottom of equipment box 2 inner chamber is provided with telescopic part 4 along the vertical direction, preferably is electric telescopic handle, can control its telescopic length, the top of telescopic part 4 is provided with slide plate 5, slide plate 5 slidingly installs in equipment box 5, is convenient for positioning sliding track, prevents shaking, the upper side of slide plate 5 is connected with one end of pull type load cell 6, the other end of pull type load cell 6 is provided with one end of rope 7, the other end of rope 7 is extended to experimental water tank 1 and is connected with the supporting plate 8 of passing fixed pulley assembly 3, the supporting plate 8 is used to place concrete test piece 19, and telescopic part 4 telescopic can make supporting plate 8 move up and down, make supporting plate 8 drive concrete test piece 19 immerse, bring out the water in experimental water tank 1.

[0023] Specifically, the middle part of the inner cavity of the experimental water tank 1 is horizontally provided with a placing rack 9, the placing rack 9 is in a hollow rib shape, and the extension of the telescopic part 4 can make the supporting plate 8 immerse in water and be placed on the placing rack 9, so that the pull type load cell 6 is not stressed when the concrete test piece 19 is soaked for a long time, and the service life of the pull type load cell 6 is increased.

[0024] The utility model discloses an embodiment 2: a pumped storage power station concrete water absorption test device, including experimental water tank 1, the inner wall of experimental water tank 1 adopts stainless steel material, waterproof anticorrosive wear -resisting, the one side of experimental water tank 1 is provided with equipment box 2, the top of the box wall between experimental water tank 1 and equipment box 2 is provided with fixed pulley assembly 3, fixed pulley assembly 3 includes the support of setting in the top of the box wall between experimental water tank 1 and equipment box 2, between horizontal setting, two ends are placed in the center place above experimental water tank 1 and equipment box 2 respectively, and both ends are provided with fixed pulley, the bottom of equipment box 2 inner chamber is provided with telescopic part 4 along the vertical direction, preferably is electric telescopic handle, can control its telescopic length, the top of telescopic part 4 is provided with slide plate 5, slide plate 5 slidingly installs in equipment box 5, is convenient for positioning sliding track, prevents shaking, the upper side of slide plate 5 is connected with one end of pull type load cell 6, the other end of pull type load cell 6 is provided with one end of rope 7, the other end of rope 7 is extended to experimental water tank 1 and is connected with the supporting plate 8 of passing fixed pulley assembly 3, the supporting plate 8 is used to place concrete test piece 19, and telescopic part 4 telescopic can make supporting plate 8 move up and down, make supporting plate 8 drive concrete test piece 19 immerse, bring out the water in experimental water tank 1.

[0025] The control host 17 is further connected with a control panel, a timer and a buzzer, the display 18 can display relevant data, the control panel is convenient for operation control, the timer is used for experiment timing, and the buzzer can remind the staff during long-time timing experiment.

[0026] The surface of the supporting plate 8 is provided with through holes 10, the through holes 10 are regularly arranged on the surface of the supporting plate 8, so that the bottom of the concrete test piece 19 can also be in contact with water, the end of the rope 7 is connected with at least three fixing ropes 11, the end, away from the rope 7, of each fixing rope 11 is connected with a bolt 12, and the bolt 12 is fixedly inserted into the through hole 10 on the surface of the supporting plate 8; the bolt 12 comprises a stick-shaped main body 13, the top end of the main body 13 is connected with the fixing rope 11, the bottom end of the main body 13 is inserted into the through hole 10, installation grooves 14 are formed in the bottom end of the main body 13, limit pieces 15 are slidably connected in the installation grooves 14, the outer end of each limit piece 15 extends out of the installation groove 14 and is clamped on the lower side of the through hole 10, and elastic elements 16 are arranged between the inner end of each limit piece 15 and the inner side wall of the installation groove 14; when the limit piece 15 is pressed inward, the bolt 12 can be pulled out of the through hole 10 and removed from the supporting plate 8; in use, the bolts 12 are evenly distributed around the concrete test piece 19 and can be used for fixing the concrete test piece 19 at the same time.

[0027] Specifically, the side wall of the experimental water tank 1 is provided with a water inlet and a water outlet, the water inlet and the water outlet are both provided with valves, and the water outlet is arranged at the bottom of the experimental water tank 1.

[0028] The working principle of one embodiment of the utility model is as follows: in use, after the dried concrete test piece 19 is obtained, the concrete test piece 19 is placed on the surface of the supporting plate 8, and the bolts 12 are evenly inserted into the supporting plate 8 around the concrete test piece 19 to fix the concrete test piece 19, and the dry weight of the concrete test piece 19 is M0. 0， After water with a proper water level is injected into the experimental water tank 1, the supporting plate 8 is controlled to move downwards by the stretching of the telescopic component 4, until the supporting plate 8 is immersed in water and placed on the placing rack 9, so that the concrete test piece 19 is not stressed by the tensile load sensor 6 during long-time soaking, after the concrete test piece 19 is soaked in water for 24 hours, the supporting plate 8 is controlled to move upwards by the contraction of the telescopic component 4 until the concrete test piece 19 completely leaves the water, and the weight M1 is obtained, and the water absorption rate of the concrete test piece 19 can be obtained by the control host 17 according to the calculation of (M1-M0) / M0.

Claims

1. A testing device for the water absorption of concrete in a pumped storage power station, characterized in that, The equipment includes an experimental water tank (1), an equipment box (2) is provided on one side of the experimental water tank (1), a fixed pulley assembly (3) is provided on the top of the wall between the experimental water tank (1) and the equipment box (2), a telescopic component (4) is provided at the bottom of the inner cavity of the equipment box (2) in the vertical direction, a sliding plate (5) is provided on the top of the telescopic component (4), one end of a pull-type weighing sensor (6) is connected to the upper side of the sliding plate (5), one end of a rope (7) is provided at the other end of the pull-type weighing sensor (6), and the other end of the rope (7) extends around the fixed pulley assembly (3) and into the experimental water tank (1) and is connected to a support plate (8).

2. The test device for water absorption of concrete in a pumped storage power station according to claim 1, characterized in that, The experimental water tank (1) has a horizontally arranged rack (9) in the middle of its inner cavity, and the rack (9) is in the shape of a hollow rib.

3. The test device for water absorption of concrete in a pumped storage power station according to claim 1, characterized in that, The tray (8) has through holes (10) on its surface. The through holes (10) are arranged in a regular pattern on the surface of the tray (8). At least three fixing ropes (11) are connected to the end of the rope (7). The end of each fixing rope (11) away from the rope (7) is connected to a pin (12). The pin (12) is fixedly inserted into the through holes (10) on the surface of the tray (8).

4. The test device for water absorption of concrete in a pumped storage power station according to claim 3, characterized in that, The pin (12) includes a rod-shaped main body (13), the top of which is connected to a fixing rope (11), the bottom of which is inserted into a through hole (10), and mounting grooves (14) are provided on both sides of the bottom of the main body (13). A limiting member (15) can be slidably engaged in the mounting groove (14). The outer end of the limiting member (15) extends out of the mounting groove (14) and engages with the lower side of the through hole (10). An elastic element (16) is provided between the inner end of the limiting member (15) and the inner wall of the mounting groove (14).

5. The test device for water absorption of concrete in a pumped storage power station according to claim 4, characterized in that, The lower part of the outer wall of the limiting member (15) is a slope shape that is recessed inward.

6. The test device for water absorption of concrete in a pumped storage power station according to claim 5, characterized in that, The bottom end of the main body (13) of the pin (12) is conical.

7. The test device for water absorption of concrete in a pumped storage power station according to claim 1, characterized in that, The experimental water tank (1) has an inlet and an outlet on its side wall. Both the inlet and outlet are equipped with valves, and the outlet is located at the bottom of the experimental water tank (1).

8. The test device for water absorption of concrete in a pumped storage power station according to claim 1, characterized in that, It also includes a control host (17) and a display (18), the display (18), the telescopic component (4), and the pull-type weighing sensor (6) are all electrically connected to the control host (17), and the control host (17) is also connected to a control panel, a timer and a buzzer.

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