Mussel erosion concrete damage experiment device

Abstract

The utility model discloses a mussel eroded concrete damage experiment device, which comprises a test water tank, the test water tank is sequentially provided with a water inlet tank, a water level adjusting tank, a water flow stabilizing section, a test section and a tail water section, the water inlet tank is communicated with the water level adjusting tank, a water outlet of the water level adjusting tank is communicated with the water flow stabilizing section, and a water outlet of the test section is communicated with the tail water section. A water outlet of the water flow stabilizing section is communicated with the test section, a concrete test piece is arranged in the test section, and a water outlet of the test section is communicated with the tail water section. The mussel larva source testing device overcomes the defects of a traditional testing mode, natural water resources are used for testing, stability and continuity of mussel larva sources are guaranteed, variables are controllable, and experimental operation is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of mussel erosion concrete damage experimental devices, belong to pumped storage power station mussel prevention and treatment technical field. BACKGROUND

[0002] Mussel invasion and biological fouling form serious harm to water conservancy facilities such as water delivery and water supply pipeline of pumped storage power station, and its prevention and treatment is a worldwide problem. Since mussel erosion will cause different degrees of damage to the micro and macro properties of concrete, it is urgent to study the scientific evaluation method for the prevention and treatment effect of mussel prevention and treatment technology and related technology on the surface of concrete.

[0003] At present, when studying the mussel prevention performance of different materials, natural attachment test and artificial attachment test are used to study the attachment characteristics of different materials. The natural attachment test studies the preference of mussels for various materials under self-selected conditions by attachment density and biomass, and the artificial attachment test studies the preference of mussels for various materials under artificial fixed conditions bybyssus number and adhesion force. The mussel prevention performance of various materials is evaluated by combining the two. In the prior art, the concrete test block is scattered in the natural river, and after a period of time, it is fished out for research and analysis. The operation is not convenient, the natural environment test variable is uncontrollable, there is no good experimental device for mussel erosion concrete damage experiment, so we propose a mussel erosion concrete damage experimental device. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a mussel erosion concrete damage experimental device, which is variable and easy to operate.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: a mussel erosion concrete damage experimental device, comprising a test tank, the test tank can be arranged beside a natural river, the test tank is sequentially provided with an inlet pool, a water level adjusting pool, a water flow stabilizing section, a test section and a tail water section, the inlet pool is in communication with the water level adjusting pool, water is taken from the natural river in the inlet pool, and the water is pumped into the water level adjusting pool by a controllable water pump, the water outlet of the water level adjusting pool is in communication with the water flow stabilizing section, the water flow stabilizing section is a "yi" shaped water channel, the water in the water level adjusting pool flows into the water flow stabilizing section, and the water flow stabilizing section makes the water flow stable, the water outlet of the water flow stabilizing section is in communication with the test section, the test section is provided with a concrete test piece, and the concrete test piece is immersed in the water flow in the test section, and the water outlet of the test section is in communication with the tail water section.

[0006] The damage experiment device for the zebra mussel erosion concrete has the interval wall arranged in the middle of the test section along the water flow direction, the interval wall divides the test section into multiple independent parts, and different tests can be carried out in the multiple independent parts.

[0007] The damage experiment device for the zebra mussel erosion concrete has the water inlet tank communicated with the water level adjusting tank through the lifting pump, and the water level adjusting tank flows into the water flow stabilizing section inlet end through the overflow mode.

[0008] The damage experiment device for the zebra mussel erosion concrete has the liftable test piece frame arranged in the test section tank, the concrete test piece is arranged on the test piece frame, the test piece frame facilitates the placement and taking of the concrete test piece, and facilitates the test operation.

[0009] The damage experiment device for the zebra mussel erosion concrete has the multiple lifting motors arranged at the top of the test section tank wall, the output end of the lifting motor is provided with a rotating wheel, one end of a lifting chain is fixedly wound on the rotating wheel, the other end of the lifting chain is connected with the test piece frame, the test piece frame is horizontally arranged in the test section tank, the four corners of the test piece frame are provided with the lifting chains, the lifting motor rotates in the forward direction to wind the lifting chain through the rotating wheel, the lifting chain lifts the test piece frame, the concrete test piece is conveniently taken or placed, the lifting motor rotates in the reverse direction to release the lifting chain through the rotating wheel, the test piece frame moves downward to be immersed in water, and the test is carried out.

[0010] The damage experiment device for the zebra mussel erosion concrete has the two positioning columns arranged through the two sides of the test piece frame, and the two positioning columns are vertically arranged in parallel on the bottom of the test section tank, so that the stability of the up-down stroke of the test piece frame is ensured.

[0011] The damage experiment device for the zebra mussel erosion concrete has the test piece frame including a rectangular frame, multiple mutually parallel cross beams are welded in the rectangular frame, every two of the multiple cross beams form a group, the two cross beams of each group are oppositely provided with limiting pieces, every four limiting pieces are oppositely arranged along the edges of the concrete test piece, the concrete test piece is arranged between the four opposite limiting pieces, the concrete test piece is conveniently placed, the limiting pieces have the positioning effect on the concrete test piece, the limiting pieces do not cover the surface of the concrete test piece in a large area, the contact area is small, and the fixing stability is high.

[0012] The damage experiment device for the zebra mussel erosion concrete has the test piece frame made of stainless steel, rust is prevented, and the service life is increased.

[0013] Compared with the prior art, the damage experiment device for the zebra mussel erosion concrete has at least the following beneficial effects:

[0014] (1) The utility model is set up beside natural river, uses natural water resource to carry out test, makes the sufficient mussel larvae, suspended algae and microorganism in natural river water enter test water tank, thereby makes mussel be able to select and adhere on test block continuously, guarantees the stability and continuity of mussel larvae source.

[0015] (2) The utility model discloses test water tank is sequentially provided with water inlet pool, water level adjusting pool, water flow stabilization section, test section and tail water section, water flow stabilization section can stabilize water flow velocity, water level adjusting pool can adjust overall water level height and water flow velocity, facilitates the control of water flow variable in experiment.

[0016] (3) The utility model discloses interval wall makes test section divide into multiple independent parts, and multiple independent parts can be divided into natural adhesion test section, artificial adhesion test section and different areas for testing.

[0017] (4) The utility model discloses that the test section 5 is provided with liftable test piece frame, and concrete test piece can be placed in test piece frame, and concrete test piece is fixed, facilitates the concrete test piece to take or place, and the depth of concrete test piece immersed in water can be adjusted simultaneously. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the utility model overhead structure schematic diagram;

[0019] Figure 2 It is the utility model test section profile structure schematic diagram;

[0020] Figure 3 It is the utility model test piece frame plane structure schematic diagram.

[0021] Fig. 1-Test water tank, 2-Water inlet pool, 3-Water level adjusting pool, 4-Water flow stabilization section, 5-Test section, 6-Tail water section, 7-Concrete test piece, 8-Interval wall, 9-Test piece frame, 10-Lifting motor, 11-Turn, 12-Lifting chain, 13-Positioning column, 14-Rectangular frame, 15-Beam, 16-Limiting piece.

[0022] The utility model will be further described below in connection with the drawings and specific embodiment. EMBODIMENT

[0023] The utility model discloses an embodiment 1: a kind of mussel erosion concrete damage experimental device, including test flume 1, test flume 1 can be set in natural river, test flume 1 is sequentially provided with water inlet pool 2, water level adjustment pool 3, water flow stabilization section 4, test section 5 and tailrace section 6, water inlet pool 2 is communicated with water level adjustment pool 3, water is taken in natural river in water inlet pool 2, and water is sent to water level adjustment pool 3 by controllable water pump, the water outlet of water level adjustment pool 3 is communicated with water flow stabilization section 4, water flow stabilization section 4 is " " character-shaped watercourse, and the water overflow in water level adjustment pool 3 flows into water flow stabilization section 4, water flow stabilization section 4 makes water flow tend to be stable, and the water outlet of water flow stabilization section 4 is communicated with test section 5, and concrete test piece 7 is provided in test section 5, and concrete test piece 7 is immersed in the water flow of test section 5, and the water outlet of test section 5 is communicated with tailrace section 6.

[0024] The utility model discloses an embodiment 2: a kind of mussel erosion concrete damage experimental device, including test flume 1, test flume 1 can be set in natural river, test flume 1 is sequentially provided with water inlet pool 2, water level adjustment pool 3, water flow stabilization section 4, test section 5 and tailrace section 6, water inlet pool 2 is communicated with water level adjustment pool 3, water is taken in natural river in water inlet pool 2, and water is sent to water level adjustment pool 3 by controllable water pump, the water outlet of water level adjustment pool 3 is communicated with water flow stabilization section 4, water flow stabilization section 4 is " " character-shaped watercourse, and the water overflow in water level adjustment pool 3 flows into water flow stabilization section 4, water flow stabilization section 4 makes water flow tend to be stable, and the water outlet of water flow stabilization section 4 is communicated with test section 5, and concrete test piece 7 is provided in test section 5, and concrete test piece 7 is immersed in the water flow of test section 5, and the water outlet of test section 5 is communicated with tailrace section 6, water inlet pool 2 is communicated with water level adjustment pool 3 by lifting pump water flow delivery, and water level adjustment pool 3 is flowed into water flow stabilization section 4 inlet end by overflow mode.

[0025] Wherein, the middle part of test section 5 is provided with interval wall 8 along the direction of water flow, interval wall 8 divides test section 5 into multiple independent parts, and different tests can be carried out in multiple independent parts, which can be divided into natural adhesion test, artificial adhesion test.

[0026] The utility model discloses an embodiment 3: a kind of mussel erosion concrete damage experimental device, including test flume 1, test flume 1 can be set in natural river, test flume 1 is sequentially provided with water inlet pool 2, water level adjustment pool 3, water flow stabilization section 4, test section 5 and tailrace section 6, water inlet pool 2 is communicated with water level adjustment pool 3, water is taken in natural river in water inlet pool 2, and water is sent to water level adjustment pool 3 by controllable water pump, and water outlet of water level adjustment pool 3 is communicated with water flow stabilization section 4, and water flow stabilization section 4 is " " character-shaped waterway, and the water of water level adjustment pool 3 overflows and flows into water flow stabilization section 4, and water flow stabilization section 4 makes water flow tend to be stable, and the water outlet of water flow stabilization section 4 is communicated with test section 5, and concrete test piece 7 is provided in test section 5, and concrete test piece 7 is immersed in the water flow of test section 5, and the water outlet of test section 5 is communicated with tailrace section 6, and water inlet pool 2 is communicated with water level adjustment pool 3 by lifting pump to send water flow, and water level adjustment pool 3 flows into water flow stabilization section 4 inlet end by overflow mode, and flow velocity detection device and liquid level height detection device are provided in test section 5, to facilitate the adjustment of water level height and water flow velocity.

[0027] Wherein, the middle part of test section 5 is provided with a partition wall 8 along the water flow direction, the partition wall 8 separates the test section 5 into multiple independent parts, and different tests can be carried out in the multiple independent parts, which can be divided into natural adhesion test and artificial adhesion test.

[0028] Wherein, a liftable test piece frame 9 is arranged in the test section 5, and the concrete test piece 7 is arranged on the test piece frame 9, so that the concrete test piece 7 is conveniently placed and taken, and the test operation is facilitated. The concrete damage experimental device is provided with a plurality of lifting motors 10 on the top of the pool wall of the test section 5, an output end of the lifting motor 10 is provided with a rotating wheel 11, one end of a lifting chain 12 is fixedly wound on the rotating wheel 11, the other end of the lifting chain 12 is connected with the test piece frame 9, the test piece frame 9 is horizontally arranged in the test section 5, the lifting chain 12 is arranged at the four corners of the test piece frame 9, the lifting motor 10 rotates forward to wind the lifting chain 12 through the rotating wheel 11, the lifting chain 12 lifts the test piece frame 9, so that the concrete test piece 7 is conveniently taken or placed, the lifting motor 10 reversely rotates to release the lifting chain 12 through the rotating wheel 11, the test piece frame 9 moves downward to be immersed in water, and the test is carried out. The concrete damage experimental device is provided with a positioning column 13 penetrating through the two sides of the test piece frame 9, and the two positioning columns 13 are vertically arranged on the bottom of the test section 5 in parallel with each other, so that the stability of the up-down stroke of the test piece frame 9 is ensured.

[0029] The utility model discloses an embodiment 4: a kind of mussel erosion concrete damage experimental device, including test flume 1, test flume 1 can be set in natural river, test flume 1 is sequentially provided with water inlet pool 2, water level adjustment pool 3, water flow stabilization section 4, test section 5 and tailrace section 6, water inlet pool 2 is communicated with water level adjustment pool 3, water is taken in natural river in water inlet pool 2, and water is sent to water level adjustment pool 3 by controllable water pump, and water level adjustment pool 3 outlet is communicated with water flow stabilization section 4, and water flow stabilization section 4 is " " character-shaped waterway, and the water in water level adjustment pool 3 overflows and flows into water flow stabilization section 4, and water flow stabilization section 4 makes water flow tend to be stable, and the outlet of water flow stabilization section 4 is communicated with test section 5, and concrete test piece 7 is provided in test section 5, and concrete test piece 7 is immersed in the water flow of test section 5, and the outlet of test section 5 is communicated with tailrace section 6, and water inlet pool 2 is communicated with water level adjustment pool 3 by lifting pump to send water flow, and water level adjustment pool 3 flows into water flow stabilization section 4 inlet end by overflow mode.

[0030] Wherein, the middle part of test section 5 is provided with a partition wall 8 along the water flow direction, the partition wall 8 divides the test section 5 into multiple independent parts, and different tests can be carried out in the multiple independent parts, which can be divided into natural adhesion test and artificial adhesion test.

[0031] Wherein, the test section 5 is provided with a liftable test piece frame 9, and the concrete test piece 7 is placed on the test piece frame 9, so that the concrete test piece 7 is conveniently placed and taken, and the test operation is facilitated. The concrete damage experimental device is provided with a plurality of lifting motors 10 on the top of the pool wall of the test section 5, an output end of the lifting motor 10 is provided with a runner 11, one end of a lifting chain 12 is fixedly wound on the runner 11, the other end of the lifting chain 12 is connected with the test piece frame 9, the test piece frame 9 is horizontally placed in the test section 5, the lifting chain 12 is provided at the four corners of the test piece frame 9, the lifting motor 10 is forwardly rotated to wind the lifting chain 12 through the runner 11, the lifting chain 12 lifts the test piece frame 9, so that the concrete test piece 7 is conveniently taken or placed, the lifting motor 10 is reversely rotated to release the lifting chain 12 through the runner 11, the test piece frame 9 moves downward to be immersed in water, and the test is carried out. The concrete damage experimental device is provided with a positioning column 13 penetrating through the two sides of the test piece frame 9, and the two positioning columns 13 are vertically arranged on the bottom of the test section 5 in parallel with each other, so that the stability of the up-down stroke of the test piece frame 9 is ensured.

[0032] The test piece frame 9 comprises a rectangular frame 14, a plurality of mutually parallel cross beams 15 are welded in the rectangular frame 14, every two of the plurality of cross beams 15 form a group, a limiting piece 16 is oppositely arranged between the two cross beams 15 of each group, every four limiting pieces 16 are oppositely arranged along the rectangular edge formed by the concrete test piece 7, the concrete test piece 7 is placed between the four opposite limiting pieces 16, the concrete test piece 7 is conveniently placed and positioned, and the surface of the concrete test piece 7 is not covered in a large area, the contact area is small, and the fixing is stable. The test piece frame 9 is made of stainless steel material, rust is prevented, and the service life is increased.

[0033] The working principle of one embodiment of the utility model: the raw water of the test tank 1 is connected with the natural water flow of rivers, lakes and seas, so that sufficient mussel larvae, suspended algae and microorganisms in the natural water flow into the test tank 1, so that the mussels can continuously select and adhere to the concrete test block 7, and the stability and sustainability of the mussel larvae source are ensured.

[0034] In order to ensure that there are sufficient mussel larvae in the water to freely select and adhere to different materials during the test, so as to distinguish the anti-mussel effect of different materials, at least one complete reproduction cycle should be experienced during the test. The test block can be selected during the reproduction period (i.e. in the middle of June), and observation is carried out every 2 months, i.e. in the middle of August, in the middle of October, in late December and in late March of the next year, i.e. a continuous 9-month test observation period, including 2 reproduction peak periods in a year, so that there are enough mussel larvae in the river water to select and adhere, and the result data has more reference value.

[0035] The design strength grade of the concrete test piece 7 is C25, the size of the test piece is 500mm*500mm*100mm, 2 large faces of each concrete test piece 7 are coated with different materials, 3 test pieces of each material are coated, and 2 blank test pieces are reserved as a control group, a total of 56 test pieces. The spacing between the test pieces is determined according to the flow rate between the test pieces, and the spacing of the test pieces is 2cm, the actual measured average flow rate between the test pieces is 0.48m / s, which meets the optimal flow rate range, and the attachment density of the mussels will decrease with the increase of the distance from the water intake, in order to study the influence of different positions of the concrete test piece 7 on the attachment result, 3 concrete test pieces 7 of the same material are placed at the upper, middle and lower reaches of the test section 5, and the 3 test pieces are also staggered in the horizontal direction.

[0036] When the experiment is carried out, after the water level height and the water flow speed are adjusted to appropriate values, the test piece frame 9 is lifted, different concrete test pieces 7 are placed and fixed between the limiting pieces 16 on the test piece frame 9 according to requirements, after the placement is completed, the test piece frame 9 is lowered to an appropriate depth, the concrete test pieces 7 are observed and recorded periodically by lifting the test piece frame 9, after the test period is completed, the concrete test pieces 7 are detected by lifting the test piece frame 9, and data are recorded. The data such as the attachment density and the biomass on the surface of the concrete test pieces 7 are compared, and the anti-erosion ability of the concrete test pieces 7 of different materials to mussels is researched and developed.

Claims

1. A device for mussel-induced concrete damage experiment, characterized in that, The utility model provides a test water tank (1), which is sequentially provided with an inlet pool (2), a water level adjusting pool (3), a water flow stabilizing section (4), a test section (5) and a tail water section (6), the inlet pool (2) is communicated with the water level adjusting pool (3), the water outlet of the water level adjusting pool (3) is communicated with the water flow stabilizing section (4), the water flow stabilizing section (4) is a "yi" shaped waterway, the water outlet of the water flow stabilizing section (4) is communicated with the test section (5), the test section (5) is provided with a concrete test piece (7), and the water outlet of the test section (5) is communicated with the tail water section (6).

2. The device according to claim 1, wherein, The test section (5) is provided with a partition wall (8) in the middle along the water flow direction, and the test section (5) is divided into multiple independent parts by the partition wall (8).

3. The device according to claim 1, wherein, The inlet pool (2) is communicated with the water level adjusting pool (3) by a lifting pump, and the water level adjusting pool (3) flows into the water inlet end of the water flow stabilizing section (4) in an overflow mode.

4. The device according to claim 1, wherein, The test section (5) is provided with a liftable test piece frame (9) in the pool, and the concrete test piece (7) is arranged on the test piece frame (9).

5. The device according to claim 4, wherein the device is characterized by, A plurality of lifting motors (10) are arranged on the top of the pool wall of the test section (5), the output end of the lifting motor (10) is provided with a rotating wheel (11), one end of a lifting chain (12) is wound and fixed on the rotating wheel (11), the other end of the lifting chain (12) is connected with the test piece frame (9), the test piece frame (9) is horizontally arranged in the pool of the test section (5), and the test piece frame (9) is provided with the lifting chain (12) at four corners.

6. The device according to claim 5, wherein, Positioning columns (13) are arranged on both sides of the test piece frame (9) and vertically arranged on the bottom of the pool of the test section (5).

7. The device according to claim 6, wherein, The test piece frame (9) comprises a rectangular frame (14), a plurality of mutually parallel cross beams (15) are welded in the rectangular frame (14), every two of the cross beams (15) form a group, a limiting piece (16) is arranged between the two cross beams (15) of each group, every four limiting pieces (16) are arranged opposite to each other along the edges of the concrete test piece (7), and the concrete test piece (7) is arranged between the four opposite limiting pieces (16).

8. The device according to claim 7, wherein, The test piece frame (9) is made of stainless steel.

Images