A sludge solidification in-situ integrated testing device and on-site application method thereof

Abstract

The present invention provides an integrated in-situ test device for sludge solidification, including piezoelectric solidified soil, a superelastic rubber film sleeve, a mesh mold, a partially conductive plastic hollow tube, a wireless self-powered vibrator, a self-powered data collector, a self-powered data processor and a self-powered wireless transmitter. The piezoelectric solidified soil is electrically connected to the self-powered data collector, the self-powered data processor and the self-powered wireless transmitter via the partially conductive plastic hollow tube; the piezoelectric solidified soil is filled into the superelastic rubber film sleeve arranged in the mesh mold; the wireless self-powered vibrator is arranged in the partially conductive plastic hollow tube. The present invention uses a self-powered vibrator, which reduces labor compared to manual excitation and ensures that the vibration load is consistent each time; the piezoelectric solidified soil is both a sensing component and an energy collection device, which supplies power to the entire system and can achieve a self-sufficient effect; the degree of integration is high, and the device is integrated into the partially conductive plastic hollow tube, which is convenient for the installation of the device.

Description

Technical Field

[0001] The present invention relates to the field of sludge solidification detection, and in particular to an in-situ integrated sludge solidification testing device and an on-site application method thereof. The device is applied to in-situ detection of sludge solidification status in dredging and desilting work in rivers, lakes, ports and waterways. Background Art

[0002] When piezoelectric materials are subjected to external stress or strain, electric charges will be formed on their surface. A large number of experiments have proven that piezoelectric materials can implement all-round and comprehensive health monitoring of concrete structures. The voltage sensing characteristics of piezoelectric materials for impact loads are linear, that is, the output voltage is proportional to the stress at that point. Therefore, under the action of external loads, the output voltage is proportional to the stress at that point. This characteristic is related to the piezoelectric strain constant of the piezoelectric material.

[0003] The piezoelectric strain constant refers to the magnitude of the electric field strength caused by the mechanical stress applied to the piezoelectric material, and its unit is pC / N. The magnitude of the piezoelectric strain constant of a piezoelectric composite material is related to many factors, among which the conductivity of the composite material is also one of its influencing factors. It is generally believed that the better the conductivity of the composite material, the greater its piezoelectric strain constant. Under the same stress, the piezoelectric composite material will generate more charge, which is proportional to the piezoelectric strain constant.

[0004] Regarding the signal reading of piezoelectric elements, since piezoelectric elements are generally high-impedance elements, their output electrical signals are very weak and cannot be read directly. They must then be connected to a load circuit and passed through a corresponding amplifier to collect the signal. Therefore, piezoelectric sensors must be equipped with a dedicated measurement circuit.

[0005] Intelligent sensing piezoelectric solidified soil technology also requires special vibration excitation devices, as well as measuring point connection and data acquisition devices. There is an urgent need to develop an integrated detection device for large-area silt solidified soil to solve the problem of poor accessibility of large-area silt solidified soil. Summary of the invention

[0006] In view of the above problems, the purpose of the present invention is to provide an integrated in-situ testing device for silt solidification that can detect large areas of silt solidification soil and its on-site implementation method. The specific technical solution is as follows:

[0007] A sludge solidification in-situ integrated testing device comprises piezoelectric solidification soil, a superelastic rubber film sleeve, a mesh mold, a partially conductive plastic hollow tube, a wireless self-powered vibrator, a self-powered data collector, a self-powered data processor and a self-powered wireless transmitter, wherein the piezoelectric solidification soil is electrically connected to the self-powered data collector, the self-powered data processor and the self-powered wireless transmitter via the partially conductive plastic hollow tube; the piezoelectric solidification soil is filled into a superelastic rubber film sleeve arranged in the mesh mold; and the wireless self-powered vibrator is arranged in the partially conductive plastic hollow tube.

[0008] Furthermore, the locally conductive plastic hollow tube has a tube wall and a conductive wall-wrap patch; a plurality of conductive channels are arranged on the tube wall; the conductive wall-wrap patch is arranged on the outside of the tube wall; one end of each conductive channel is connected to the conductive wall-wrap patch, and the other end is connected to the self-powered data collector, and the outside of the conductive wall-wrap patch is in contact with the piezoelectric solidified soil.

[0009] Furthermore, when collecting data, the piezoelectric solidified soil acts as a sensor to sense the solidification state of the silt; when not collecting data, the piezoelectric solidified soil acts as an energy collector to collect the mechanical energy generated by the weak vibrations of the surrounding soil, convert it into electrical energy and store it, providing energy for the entire system.

[0010] Furthermore, the wireless self-powered vibrator is connected to the piezoelectric solidified soil through a conductive channel in a partially conductive plastic hollow tube, and the piezoelectric solidified soil provides power to the wireless self-powered vibrator; the self-powered data collector, the self-powered data processor and the self-powered wireless transmitter are connected in series, and the power is provided by the piezoelectric solidified soil.

[0011] Furthermore, the mesh molds are fixed on the wall of the partially conductive plastic hollow tube at equal intervals, and the intervals are the vertical distribution intervals of the measuring points.

[0012] A method for pre-embedding an in-situ integrated testing device for sludge solidification, comprising the following steps:

[0013] 1) Assemble the partially conductive plastic hollow tube according to the measurement point arrangement spacing;

[0014] 2) Fix the partially conductive plastic hollow tube;

[0015] 3) Modulation of piezoelectric solidification soil;

[0016] 4) Filling piezoelectric solidified soil into the superelastic rubber film;

[0017] 5) Use a high voltage power supply to polarize the piezoelectric solidified soil;

[0018] 6) Install a wireless self-powered vibrator;

[0019] 7) Install self-powered data collector, self-powered data processor and self-powered wireless transmitter;

[0020] 8) Fill silt to solidify soil.

[0021] A method for applying a sludge solidification in-situ integrated testing device by on-site press-in type, comprising the following steps:

[0022] 1) Assemble the partially conductive plastic hollow tube according to the measurement point arrangement spacing;

[0023] 2) Modulation of piezoelectric solidification soil;

[0024] 3) Filling piezoelectric solidified soil into the mesh mold and superelastic rubber film;

[0025] 4) Use a high voltage power supply to polarize the piezoelectric solidified soil;

[0026] 5) Install a wireless self-powered vibrator;

[0027] 6) Install self-powered data logger and self-powered wireless transmitter;

[0028] 7) Vertically press the local conductive plastic hollow tube into the silt solidified soil.

[0029] Principle of the invention: Piezoelectric solidified soil needs an external excitation load to generate an electrical signal. The wireless self-powered vibrator inside the measuring hole plays the role of exciting the load. When the wireless self-powered vibrator is started, the piezoelectric solidified soil is vibrated and electric charge movement is generated inside. After being collected by the self-powered data collector, it is transmitted to the self-powered data processor to determine the solidification state of the sludge.

[0030] Normally, when the system is dormant, the piezoelectric solidified soil collects weak vibrations inside the soil. Due to the piezoelectric effect, there is charge movement inside the soil. The generated electrical energy is stored in the energy collector using a converter to power the system.

[0031] The integrated testing device uses wireless transmission to transmit data. After reading the data, it is transmitted to the self-powered data processor through gateways and repeaters, etc., which can realize real-time monitoring of the sludge solidification state and achieve the purpose of automatic monitoring.

[0032] The beneficial effects of the present invention are:

[0033] (1) The present invention uses a self-powered vibration exciter, which reduces labor and ensures consistent vibration load each time compared to manual vibration.

[0034] (2) The piezoelectric solidified soil in the present invention is not only a sensing component, but also an energy collection device, which supplies power to the entire system and can achieve a self-sufficient effect;

[0035] (3) The present invention has a high degree of integration, and the device is integrated into a partially conductive plastic hollow tube, which is convenient for installation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention is further described in detail below with reference to the accompanying drawings.

[0037] Figure 1 This is the initial state of the partially conductive plastic hollow tube of the present invention;

[0038] Figure 2 is a longitudinal sectional view of the integrated device of the present invention;

[0039] Figure 3 is a cross-sectional view of the integrated device of the present invention;

[0040] Figure 4 It is the equivalent circuit diagram of the integrated device.

[0041] As shown in the figure: 1-partially conductive plastic hollow tube, 2-mesh mold and superelastic rubber film, 3-wire, 4-plastic hose, 5-conductive wall-wrapped patch, 6-piezoelectric solidified soil, 7-self-powered wireless transmitter, 8-self-powered data collector, 9-self-powered exciter, 10-measuring point. DETAILED DESCRIPTION

[0042] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0043] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content. Embodiment 1

[0044] like Figure 1-4As shown, a sludge solidification in-situ integrated testing device of the present invention comprises a partially conductive plastic hollow tube 1 and piezoelectric solidified soil 6 arranged inside the tube, a mesh mold and a superelastic rubber film sleeve 2, a wireless self-powered vibrator 9, a self-powered data collector 8, a self-powered data processor and a self-powered wireless transmitter 7. The piezoelectric solidified soil 6 is electrically connected to the self-powered data collector 8, the self-powered data processor and the self-powered wireless transmitter 7 via the partially conductive plastic hollow tube 1; the piezoelectric solidified soil 6 is filled into the mesh mold and the superelastic rubber film sleeve 2 via a plastic hose 4.

[0045] The locally conductive plastic hollow tube 1 has a tube wall and a conductive wall-wrap patch 5; a plurality of conductive channels (i.e., wires 3) are arranged on the tube wall; the conductive wall-wrap patch 5 is arranged on the outside of the tube wall; one end of each conductive channel (wire 3) is connected to the conductive wall-wrap patch 5, and the other end is connected to the self-powered data collector 8, and the outside of the conductive wall-wrap patch 5 is in contact with the piezoelectric solidified soil 6.

[0046] When collecting data, the piezoelectric solidified soil 6 acts as a sensor to sense the solidification state of the silt; when not collecting data, the piezoelectric solidified soil 6 acts as an energy collector to collect the mechanical energy generated by the weak vibration of the surrounding soil. Due to the piezoelectric effect, there is charge movement inside the soil. The generated electrical energy is stored in the energy collector using a converter to power the system.

[0047] The wireless self-powered vibrator 9 is connected to the piezoelectric solidified soil 6 through a conductive channel (wire 3) in a partially conductive plastic hollow tube 1, and the piezoelectric solidified soil 6 provides power to the wireless self-powered vibrator 9; the self-powered data collector 8, the self-powered data processor and the self-powered wireless transmitter 7 are connected in series, and the power is provided by the piezoelectric solidified soil 6.

[0048] The mesh molds are fixed on the wall of the partially conductive plastic hollow tube 1 at equal intervals, and the intervals are the vertical distribution intervals of the measuring points.

[0049] This embodiment provides a method for pre-embedding an in-situ integrated test device on site, and the steps are as follows:

[0050] 1) Assemble the local conductive plastic hollow tube 1 according to the measurement point arrangement spacing;

[0051] 2) Fixing the partially conductive plastic hollow tube 1;

[0052] 3) Modulation of piezoelectric solidification soil 6;

[0053] 4) Filling piezoelectric solidified soil into the mesh mold and the superelastic rubber film 2;

[0054] 5) polarizing the piezoelectric solidified soil 6 using a high voltage power supply;

[0055] 6) Install a wireless self-powered vibrator 9;

[0056] 7) Installing a self-powered data collector 8 and a self-powered wireless transmitter 7;

[0057] 8) Fill silt to solidify soil. Embodiment 2

[0058] This embodiment provides an on-site press-in method for an in-situ integrated test device, and the steps are as follows:

[0059] 1) Assemble the partially conductive plastic hollow tube 1 according to the arrangement spacing of the measuring points 10;

[0060] 2) Modulation of piezoelectric solidification soil 6;

[0061] 3) Filling piezoelectric solidified soil into the mesh mold and the superelastic rubber film 2;

[0062] 4) polarizing the piezoelectric solidified soil 6 using a high voltage power supply;

[0063] 5) Install a wireless self-powered vibrator 9;

[0064] 6) Installing a self-powered data collector 8 and a self-powered wireless transmitter 7;

[0065] 7) Vertically press the local conductive plastic hollow tube into the silt solidified soil.

[0066] It should be noted that the terms "comprises", "includes" or any other variations are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0067] The present invention provides a new idea and method for in-situ testing of sludge solidification. There are many methods and ways to implement the technical solution. The described embodiments are part of the embodiments of the present invention, but not all of them. The components of the embodiments of the present invention generally described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but only represents selected embodiments of the present invention.

[0068] The protection scope of the present invention is not limited to the technical solutions disclosed in the specific implementation methods. Any modifications, equivalent replacements, improvements, etc. made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A sludge solidification in-situ integrated testing device, characterized in that: It comprises piezoelectric solidified soil, a superelastic rubber film sleeve, a mesh mold, a partially conductive plastic hollow tube, a wireless self-powered vibrator, a self-powered data collector, a self-powered data processor and a self-powered wireless transmitter, wherein the piezoelectric solidified soil is electrically connected to the self-powered data collector, the self-powered data processor and the self-powered wireless transmitter via the partially conductive plastic hollow tube; the piezoelectric solidified soil is filled into the superelastic rubber film sleeve arranged in the mesh mold; the wireless self-powered vibrator is arranged in the partially conductive plastic hollow tube; The partially conductive plastic hollow tube has a tube wall and a conductive wall-wrap patch; a plurality of conductive channels are arranged on the tube wall; the conductive wall-wrap patch is arranged outside the tube wall; one end of each conductive channel is connected to the conductive wall-wrap patch, and the other end is connected to the self-powered data collector, and the outer side of the conductive wall-wrap patch is in contact with the piezoelectric solidified soil; The wireless self-powered vibrator is connected to the piezoelectric solidified soil through a conductive channel in a partially conductive plastic hollow tube, and the piezoelectric solidified soil provides power to the wireless self-powered vibrator; the self-powered data collector, the self-powered data processor and the self-powered wireless transmitter are connected in series, and the power is provided by the piezoelectric solidified soil; The mesh molds are fixed on the wall of the partially conductive plastic hollow tube at equal intervals, and the intervals are the vertical distribution intervals of the measuring points.

2. The sludge solidification in-situ integrated testing device according to claim 1, characterized in that: When collecting data, the piezoelectric solidified soil acts as a sensor to sense the solidification state of the silt; when not collecting data, the piezoelectric solidified soil acts as an energy collector to collect the mechanical energy generated by the weak vibrations of the surrounding soil, convert it into electrical energy and store it to provide energy for the entire system.

3. A method for pre-embedding the sludge solidification in-situ integrated testing device as claimed in claim 1 or 2, characterized in that: The following steps are involved: 1) Assemble the partially conductive plastic hollow tube according to the measurement point arrangement spacing; 2) Fix the partially conductive plastic hollow tube; 3) Modulation of piezoelectric solidification soil; 4) Fill the piezoelectric solidified soil into the superelastic rubber film sleeve; 5) Use a high voltage power supply to polarize the piezoelectric solidified soil; 6) Install a wireless self-powered vibrator; 7) Install self-powered data collector, self-powered data processor and self-powered wireless transmitter; 8) Fill silt to solidify soil.

4. A method for on-site press-in construction of the sludge solidification in-situ integrated testing device as claimed in claim 1 or 2, characterized in that: The following steps are involved: 1) Assemble the partially conductive plastic hollow tube according to the measurement point arrangement spacing; 2) Modulation of piezoelectric solidification soil; 3) Filling piezoelectric solidified soil into the mesh mold and the superelastic rubber film sleeve; 4) Use a high voltage power supply to polarize the piezoelectric solidified soil; 5) Install a wireless self-powered vibrator; 6) Install self-powered data logger and self-powered wireless transmitter; 7) Vertically press the local conductive plastic hollow tube into the silt solidified soil.

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