Water circulation device for testing water resistance of cement test block

Abstract

The utility model provides a water circulation device for testing the water resistance of a cement test block, and belongs to the technical field of cement performance testing devices. The device comprises a first water storage tank and a second water storage tank, the first water storage tank and the second water storage tank are adjacently arranged, at least one water circulation assembly is arranged on the top of the first water storage tank and the top of the second water storage tank, and the water circulation assemblies are used for achieving water circulation between the first water storage tank and the second water storage tank; each group of water circulation components is provided with two circulation units, each circulation unit is provided with a driving source and a circulation channel, the circulation channel is provided with a water supply section and a testing section, the water supply section is used for communicating the driving source with the testing section and supplying water provided by the driving source to the testing section, and the testing section is used for discharging the water provided by the water supply section; an inner cavity of the testing section is used for storing a cement test block; the water circulation device is used for solving the technical problems that an existing water circulation device for testing cannot meet the requirement of a cement test block for flowing water, and the whole cement test block cannot be in a flowing water environment.

Description

Technical Field

[0001] The utility model belongs to the technical field of cement performance testing devices, and particularly relates to a water circulation device for testing the water resistance of cement test blocks. Background Art

[0002] Durability can be defined as the ability of a material to maintain integrity, stability, and sufficient long-term resistance to climatic conditions. Humid and heat cycle tests, freeze-thaw cycle tests, and simulations of indoor conditions caused by weather changes or human activities can be used to evaluate the long-term stability of porous building materials or non-hydraulic cement materials. Durability generally includes several aspects such as water resistance, frost resistance, weather resistance, erosion resistance, and carbonation resistance. Among them, water resistance is the most basic property of cement durability, and many studies mainly reflect the durability of cement through water resistance.

[0003] Dynamic water disasters are common disaster types in engineering construction, characterized by a large number, difficult treatment, and strong disaster-causing ability, often leading to the deterioration of the construction environment. The commonly used method for treating dynamic water disasters in underground engineering is grouting. Grouting refers to using chemical or physical methods to prepare a slurry with certain gelling properties, and injecting it into various pores and cracks through a grouting pump and other pressurizing means. After the slurry coagulates and hardens, it plays a role in seepage prevention and reinforcement. However, the grouting material still faces the erosion of the dynamic water environment in the pores. Therefore, it is of great significance to test the durability of grouting test blocks under dynamic water conditions.

[0004] The existing water circulation devices include two adjacent water tanks. The test blocks to be tested are placed in the two water tanks respectively, and a water circulation system is installed between the two water tanks to circulate and replace the water in the two water tanks to ensure the dynamic water environment in the water tanks. However, the current such devices have the following problems:

[0005] 1) The cement test blocks are located in the water tank, and the flow of the water in the water tank is only the disturbance of the upper layer of the water by the water circulation device, which cannot fully meet the requirements of the experiment for flowing water;

[0006] 2) The cement test blocks are in the shape of a cube or a cuboid, and the bottom is attached to the bottom surface of the water tank, resulting in the bottom surface not being able to participate in the interaction with the flowing water, that is, the whole cement test block cannot be fully in the dynamic water environment, resulting in a large error in the experimental results.

[0007] Therefore, it is necessary to provide an improved technical solution for the deficiencies of the above-mentioned existing technologies. Content of the Utility Model

[0008] The purpose of the utility model is to provide a water circulation device for testing the water resistance of cement test blocks, so as to solve the technical problems that the existing water circulation devices cannot meet the requirements of the cement test blocks for flowing water and the whole cement test block cannot be fully in the dynamic water environment.

[0009] To achieve the above object, the following technical solutions are provided for a water circulation device for testing the water resistance of cement specimens of the present utility model:

[0010] A water circulation device for testing the water resistance of cement specimens, which is used to test the water resistance of cement specimens, includes a first water storage tank and a second water storage tank for storing experimental liquids. The first water storage tank and the second water storage tank are arranged adjacent to each other. At least one group of water circulation components is provided on the tops of the first water storage tank and the second water storage tank. Each group of the water circulation components has two circulation units. One circulation unit is used to supply the water in the first water storage tank to the second water storage tank, and the other circulation unit supplies the water in the second water storage tank to the first water storage tank to realize the water circulation between the first water storage tank and the second water storage tank;

[0011] Each circulation unit has a driving source and a circulation channel. The circulation channel has a water supply section and a test section. The water supply section is used to connect the driving source and the test section to supply the water provided by the driving source to the test section. The test section is used to discharge the water provided by the water supply section. The inner cavity of the test section is used to store cement specimens, and the cross-sectional dimension of the inner cavity of the test section is larger than the cross-sectional dimension of the specimen.

[0012] As a further optimized technical solution, a water level balancing structure is provided between the first water storage tank and the second water storage tank to ensure the water level balance between the first water storage tank and the second water storage tank.

[0013] As a further optimized technical solution, the water level balancing structure is a connecting pipe. The connecting pipe is arranged between the first water storage tank and the second water storage tank. One end of the connecting pipe is fixedly connected to the side wall of the first water storage tank, and the other end is fixedly connected to the side wall of the second water storage tank.

[0014] As a further optimized technical solution, the connecting pipe is arranged at the bottom between the first water storage tank and the second water storage tank.

[0015] As a further optimized technical solution, the water level balancing structure is a siphon pipe. One end of the siphon pipe extends into the first water storage tank, and the other end extends into the second water storage tank.

[0016] As a further optimized technical solution, the cross-section of the inner cavity of the test section is circular.

[0017] As a further optimized technical solution, the test section is horizontally arranged, and the water outlet of the test section is arranged at the top.

[0018] As a further optimized technical solution, a guiding pipe is arranged at the position of the water outlet of the test section to guide the water flowing out of the water outlet into the first water storage tank or the second water storage tank.

[0019] As a further optimized technical solution, the guiding pipe has an extension section and a guiding section. The extension section is arranged vertically to increase the drainage height of the water outlet, and the guiding section is integrally and fixedly connected to the extension section to drain the flowing water into the first water storage tank or the second water storage tank.

[0020] As a further optimized technical solution, the driving source is a water pump.

[0021] Beneficial effects: By placing the test block in the water circulation assembly, the water resistance of the cement test block can be tested incidentally during the water circulation process in the first water storage tank and the second water storage tank. Compared with the prior art of placing the cement test block in the water tank, the flowing water in the test section can better meet the experimental requirements, thus effectively solving the technical problem in the prior art that the requirements of the cement test block for flowing water cannot be met. In addition, by setting the inner cavity cross-section of the test section to a circular shape, the inner side wall of the test section is tubular, and the tubular side wall will not fit against any side wall of the cement test block, so that the test block can be completely in a dynamic water environment, improving the accuracy of the experimental data. Description of the Drawings

[0022] The schematic diagrams in the specification that form a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation to the present utility model. Among them:

[0023] Figure 1 is the overall structural schematic diagram of Embodiment 1 of the present utility model;

[0024] Figure 2 is the overall structural schematic diagram of Embodiment 2 of the present utility model.

[0025] In the figure: 1, the first water storage tank; 2, the second water storage tank; 3, the circulation unit; 301, the driving source; 302, the circulation channel; 3021, the water supply section; 3022, the test section; 4a, the connecting pipe; 4b, the siphon; 5, the guiding pipe; 501, the extension section; 502, the guiding section. Detailed Embodiments

[0026] The technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present utility model.

[0027] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and does not require the present utility model to be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. The terms "connected" and "coupled" used in the present utility model should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be directly connected or indirectly connected through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] The present utility model will be described in detail below with reference to the drawings and in conjunction with embodiments. It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0029] The present utility model provides a water circulation device for testing the water resistance of cement specimens. By setting two water storage tanks and arranging a water circulation component between the two water storage tanks, the specimens are placed in the water circulation component for experiments to ensure the flowing water environment required for the specimens. In addition, the experimental liquid in this device can be water or a specific solution configured according to experimental requirements, and specific selection is made according to experimental requirements. The following embodiments will be described in detail taking water as an example.

[0030] Embodiment 1

[0031] As Figure 1 shown, a water circulation device for testing the water resistance of cement specimens, which is used to test the water resistance of cement specimens, includes a first water storage tank 1 and a second water storage tank 2 for storing experimental water. The first water storage tank 1 and the second water storage tank 2 are arranged adjacent to each other. Among them, at least one set of water circulation components is provided on the tops of the first water storage tank 1 and the second water storage tank 2 for realizing the water circulation in the first water storage tank 1 and the second water storage tank 2.

[0032] Each set of water circulation components has two circulation units 3. One circulation unit 3 is used to supply the water in the first water storage tank 1 to the second water storage tank 2, and the other circulation unit 3 supplies the water in the second water storage tank 2 to the first water storage tank 1 to realize the water circulation between the first water storage tank 1 and the second water storage tank 2.

[0033] Specifically, each circulation unit 3 has a driving source 301 and a circulation channel 302. The driving source 301 is used to supply water to the circulation channel 302. In this embodiment, the driving source 301 is a small multi-power water pump, and by adjusting the power of the water pump, the adjustment of the water flow rate of the water supply is realized to meet different experimental requirements.

[0034] The circulation channel 302 has a water supply section 3021 and a test section 3022. The water supply section 3021 is used to connect the drive source 301 and the test section 3022, and supply the water provided by the drive source 301 to the test section 3022. The test section 3022 is used to drain the water provided by the water supply section 3021. The inner cavity of the test section 3022 is used to store cement specimens, and the cross-sectional dimension of the inner cavity of the test section 3022 is larger than the cross-sectional dimension of the cement specimens. Only in this way can the water flow through the circulation channel 302 normally.

[0035] In this embodiment, one set of water circulation components is provided. The test section 3022 in the front-side circulation unit 3 extends from the first water storage tank 1 to the second water storage tank 2, and is used to supply the water in the first water storage tank 1 to the second water storage tank 2. The test section 3022 in the rear-side circulation unit 3 extends from the second water storage tank 2 to the first water storage tank 1, and is used to supply the water in the second water storage tank 2 to the first water storage tank 1. In other embodiments, when the length of the water tank permits, multiple sets of water circulation components can be provided, so as to be used for the testing of more cement specimens.

[0036] When the above device is in experiment, one set of cement specimens is placed in the test section 3022 of the front-side circulation unit 3, and another set of cement specimens is placed in the test section 3022 of the rear-side circulation unit 3. Two water pumps are started to work simultaneously. In order to ensure that the cement specimens are completely immersed in water, the outlet position of the test section 3022 can be set to be inclined upward, that is, the axis of the test section 3022 has a set angle with the horizontal section. Keep the set time according to the experimental requirements, and then take out the cement specimens for corresponding tests.

[0037] In the above technical solution, the technical problem that the requirements of the cement specimens for flowing water cannot be met in the prior art during the experiment can be solved. In order to solve the technical problem that the cement specimens cannot be completely in a dynamic water environment at the same time, the cross-section of the inner cavity of the test section 3022 is set to be circular. In this way, the inner side wall of the test section 3022 is tubular, and the tubular side wall will not fit with any side wall of the cement specimens, so as to ensure that the cement specimens are completely in a dynamic water environment and improve the accuracy of the experimental data.

[0038] During the experiment, the experimental requirements for the two groups of cement specimens are not necessarily the same. Therefore, the working powers of the two water pumps are different. At this time, the water pump with a larger power will quickly drain the water in the corresponding water storage tank, but the water in the other water storage tank cannot be supplied in time, resulting in the interruption of the water circulation between the two water storage tanks and affecting the continuity of the experiment. To solve this technical problem, a water level balancing structure is provided between the first water storage tank 1 and the second water storage tank 2 to ensure the water level balance between the first water storage tank 1 and the second water storage tank 2. In this way, when the powers of the two water pumps are different, during the experiment, when there is a water level difference between the two water storage tanks, the water level balancing structure will work in time to ensure the water level balance between the two water storage tanks.

[0039] In this embodiment, the water level balancing structure is a connecting pipe 4a. The connecting pipe 4a is arranged between the first water storage tank 1 and the second water storage tank 2. One end of the connecting pipe 4a is fixedly connected to the side wall of the first water storage tank 1, and the other end is fixedly connected to the side wall of the second water storage tank 2. Preferably, to ensure the effect of water level balance, the connecting pipe 4a is arranged at the bottom between the first water storage tank 1 and the second water storage tank 2.

[0040] In this embodiment, for the convenience of installation, the test section 3022 is arranged horizontally. At this time, to ensure that the cement specimens are completely immersed in water, the water outlet of the test section 3022 is arranged at the top. In this way, the water level in the test section 3022 can only be discharged after exceeding the top. And since the cross-sectional dimension of the inner cavity of the test section 3022 is larger than the cross-sectional dimension of the cement specimens, the cement specimens will surely meet the experimental requirement of being completely immersed in water at this time.

[0041] On the above basis, because the water outlet of the test section 3022 is arranged at the top, the discharged water cannot ensure complete inflow into the corresponding water storage tank in a form similar to a fountain. To solve this technical problem, a guiding pipe 5 is arranged at the water outlet position of the test section 3022. The guiding pipe 5 of the front-side circulation unit 3 is used to guide the water flowing out of the water outlet into the second water storage tank 2, and the guiding pipe 5 of the rear-side circulation unit 3 is used to guide the water flowing out of the water outlet into the first water storage tank 1.

[0042] In this embodiment, the guiding pipe 5 has an extension section 501 and a guiding section 502. The extension section 501 is arranged vertically to increase the drainage height of the water outlet and further stably ensure that the cement specimens are completely immersed in water. The guiding section 502 is integrally and fixedly connected to the extension section 501. The guiding section 502 of the front-side circulation unit 3 is used to completely drain the flowing water into the first water storage tank 1, and the guiding section 502 of the rear-side circulation unit 3 is used to completely drain the flowing water into the second water storage tank 2.

[0043] Embodiment 2

[0044] As Figure 2As shown, in this embodiment, all technical solutions are the same as those in Embodiment 1 except for the water level balance structure. The water level balance structure in this embodiment is a siphon 4b. One end of the siphon 4b extends into the first water storage tank 1, and the other end extends into the second water storage tank 2. By using the siphon principle, the water levels of the first water storage tank 1 and the second water storage tank 2 are ensured to be balanced to ensure the continuity of the experiment.

[0045] It can be understood that the above description is only exemplary, and the embodiments of the present application do not limit this.

[0046] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model are within the protection scope of the pending claims of the present utility model.

Claims

1. A water circulation device for testing the water resistance of cement test blocks, used for testing the water resistance of cement test blocks, comprising a first water storage tank (1) and a second water storage tank (2) for storing experimental liquid, wherein the first water storage tank (1) and the second water storage tank (2) are arranged adjacent to each other, and characterized in that: At least one set of water circulation components is arranged on the top of the first water storage tank (1) and the second water storage tank (2), and each set of the water circulation components has two circulation units (3), one circulation unit (3) is used to supply water in the first water storage tank (1) to the second water storage tank (2), and the other circulation unit (3) supplies water in the second water storage tank (2) to the first water storage tank (1), so as to realize water circulation between the first water storage tank (1) and the second water storage tank (2); Each circulation unit (3) comprises a driving source (301) and a circulation channel (302); the circulation channel (302) comprises a water supply section (3021) and a test section (3022); the water supply section (3021) is used to connect the driving source (301) and the test section (3022) and to supply water provided by the driving source (301) to the test section (3022); the test section (3022) is used to discharge water provided by the water supply section (3021); the inner cavity of the test section (3022) is used to store cement test blocks; the cross-sectional dimension of the inner cavity of the test section (3022) is larger than the cross-sectional dimension of the cement test block.

2. The water circulation device for testing water resistance of cement test blocks according to claim 1, characterized in that: A water level balance structure is provided between the first water storage tank (1) and the second water storage tank (2), for ensuring water level balance between the first water storage tank (1) and the second water storage tank (2).

3. The water circulation device for testing water resistance of cement test blocks according to claim 2, characterized in that: The water level balance structure is a connecting pipe (4a), which is arranged between the first water storage tank (1) and the second water storage tank (2), one end of the connecting pipe (4a) is fixedly connected to the side wall of the first water storage tank (1), and the other end is fixedly connected to the side wall of the second water storage tank (2).

4. The water circulation device for testing water resistance of cement test blocks according to claim 3, characterized in that: The connecting pipe (4a) is arranged at the bottom end between the first water storage tank (1) and the second water storage tank (2).

5. The water circulation device for testing water resistance of cement test blocks according to claim 2, characterized in that: The water level balance structure is a siphon tube (4b), one end of which extends into the first water storage tank (1), and the other end of which extends into the second water storage tank (2).

6. The water circulation device for testing water resistance of cement test blocks according to any one of claims 1 to 5, characterized in that: The inner cavity cross-section of the test section (3022) is circular in shape.

7. The water circulation device for testing water resistance of cement test blocks according to any one of claims 1 to 5, characterized in that: The test section (3022) is arranged horizontally, and the water outlet of the test section (3022) is arranged at the top.

8. The water circulation device for testing water resistance of cement test blocks according to claim 7, characterized in that: A guide pipe (5) is provided at the water outlet of the test section (3022) for guiding water flowing out of the water outlet into the first water storage tank (1) or the second water storage tank (2).

9. The water circulation device for testing water resistance of cement test blocks according to claim 8, characterized in that: The guide pipe (5) comprises an extension section (501) and a guide section (502); the extension section (501) is arranged vertically and is used to increase the drainage height of the water outlet; the guide section (502) and the extension section (501) are integrally fixedly connected and are used to discharge the flowing water into the first water storage tank (1) or the second water storage tank (2).

10. The water circulation device for testing water resistance of cement test blocks according to any one of claims 1 to 5, characterized in that: The driving source (301) is a water pump.

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