Mass concrete heat preservation and moisture preservation curing device

Abstract

The utility model relates to the technical field of concrete curing, and particularly discloses a mass concrete heat preservation and moisture preservation curing device which comprises a circulating water pipe with part of a pipeline arranged in mass concrete, a temperature sensor and a water pump arranged on the circulating pipeline, and a water storage tank arranged beside the mass concrete. The water storage tank is communicated with the circulating pipeline, and a spray head is arranged on the surface position of the circulating pipeline, where mass concrete enters and exits.

Description

Technical Field

[0001] This utility model relates to the field of concrete curing technology, specifically to a large-volume concrete heat preservation and moisture retention curing device. Background Technology

[0002] Concrete is a key material for urbanization and the sustainable development of the construction industry, and its casting quality directly affects the safety and service life of buildings. Large-volume concrete, due to its surface contact with the external environment, is easily cooled rapidly by ambient temperature. However, its large volume makes internal heat dissipation difficult, resulting in inconsistent cooling rates between the inside and outside of the concrete. Since concrete temperature affects the rate of hydration, this uneven cooling leads to a greater accumulation of hydration heat inside the concrete compared to the surface, causing significant temperature differences, creating thermal stress, and ultimately leading to cracking of the concrete structure. This severely impacts structural safety and functionality, jeopardizing the safety of the concrete structure. Therefore, temperature control is a major challenge in the construction of large-volume concrete projects.

[0003] In existing technologies, temperature control of concrete mainly relies on water curing. Water curing provides excellent heat preservation and moisture retention, effectively reducing the temperature difference between the surface and interior of large-volume concrete, and is beneficial for controlling temperature stress in large-volume concrete. However, the large amount of water used during curing leads to water waste, increases curing costs, and puts significant pressure on the environment. To address this, existing technologies utilize curing water recycling to reduce water consumption. For example, patent application number 201910505452.8 discloses a self-circulating temperature-controlled curing system and method for large-volume concrete. This system utilizes circulating water to remove the hydration heat from the interior of the large-volume concrete, recycling the water and reducing water resource usage.

[0004] Although the above technology utilizes water circulation to expel the hydration heat inside the large-volume concrete, setting up a water storage frame to enclose the large-volume concrete to form a water storage tank will increase the water content in the cement if the concrete is directly soaked in water, affecting the mechanical strength and mechanical properties of the large-volume concrete surface. Utility Model Content

[0005] The purpose of this utility model is to provide a thermal insulation and moisture retention curing device for large-volume concrete, in order to solve the technical problem mentioned above in the prior art where a water storage frame is set up above large-volume concrete to form a water storage tank, causing the concrete to be soaked in water, which affects the mechanical strength and mechanical properties of the surface of the large-volume concrete.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows: a large-volume concrete heat preservation and moisture retention curing device, including a circulating water pipe with some pipes installed inside the large-volume concrete, a temperature sensor and a water pump installed on the circulating pipe, characterized in that: it also includes a water storage tank installed next to the large-volume concrete, the water storage tank is connected to the circulating pipe, and the circulating pipe is equipped with nozzles at the surface positions of entering and exiting the large-volume concrete.

[0007] The beneficial effects of this implementation plan are as follows:

[0008] 1. In existing technologies, when curing large volumes of concrete, a water storage frame is used to enclose the top of the large volume concrete to form a water storage tank for water storage curing. However, immersion in water is generally not recommended during cement curing because the cement paste is very susceptible to hydration when it first forms and sets, leading to a decrease in strength or even loss of curing effect. Furthermore, the circulating water disturbs the surface of the large volume concrete, hindering its setting. Under normal circumstances, the surface of cement should be kept moist during curing, avoiding immersion in water and disturbance of the large volume surface. Therefore, this application utilizes a water storage tank to store circulating water, avoiding immersion in the concrete and disturbance of the large volume surface. Spraying water from nozzles further moistens the surface, resulting in better curing effects.

[0009] Furthermore, the circulation pipeline includes a circulating water supply pipe, a circulating water outlet pipe, and a bow-shaped cooling water pipe, each equipped with a temperature sensor. This forms a cooling and maintenance system.

[0010] Furthermore, the water pump is installed on the circulating water delivery pipe, which is equipped with a flow meter, and the circulating water outlet pipe is equipped with a solenoid valve. The flow rate of the water in the circulating water pipe can be controlled by the solenoid valve and the flow meter, thereby controlling the cooling rate and maintaining the temperature.

[0011] Furthermore, the water storage tank is equipped with a groundwater inlet pipe. The groundwater pumped out from the deep foundation pit during dewatering can be introduced into the water storage tank for use.

[0012] Furthermore, the water storage tank is equipped with a temperature sensor and a heating device. The temperature data is transmitted to the heating device using the PLC controller's interconnection technology. The heating device can analyze the measured temperature data based on pre-set temperature parameters, thereby controlling the water storage temperature within a specified range.

[0013] Furthermore, a connecting pipe is provided between the nozzle and the circulation pipe, and a pressurizing throat is provided on the connecting pipe, and an air pipe that can be connected to high-pressure gas is provided on the throat. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structural layout of this utility model.

[0015] Figure 2 This is a schematic diagram of the connection structure between the nozzle and the circulating water channel of this utility model. Detailed Implementation

[0016] The following detailed description illustrates the specific implementation method:

[0017] The reference numerals in the accompanying drawings include: 1. Water storage tank; 2. Groundwater inlet pipe; 3. Temperature sensor; 4. Heating device; 5. Water pump; 6. Water flow meter; 7. Circulating water delivery pipe; 8. Nozzle; 81. Connecting pipe; 82. Water mist nozzle; 83. Air pipe; 9. Bow-shaped cooling water pipe; 10. Concrete; 11. Solenoid valve; 12. Circulating water outlet pipe.

[0018] Implementation, for example, attached Figure 1-2 As shown: A thermal insulation and moisture retention curing system for large-volume concrete includes a water storage tank 1 placed next to the large-volume concrete 10, to... Figure 1 The direction is described. The upper end of the water storage tank 1 is connected to the groundwater inlet pipe 2. Therefore, the groundwater pumped out by the deep foundation pit dewatering can be introduced into the water storage tank 1 for use. An electromagnetic valve 11 is installed on the groundwater inlet pipe 2. An outlet is set at the lower left end of the water storage tank 1. An electromagnetic valve 11 is also set on the outlet. The water level of the water storage tank 1 can be controlled as needed using the electromagnetic valve 11.

[0019] A temperature sensor 3 and a heating device 4 are installed inside the water storage tank 1. The temperature sensor 3 and the heating device 4 are located on the inner wall of the middle part of the water storage tank 1, and are electrically connected to the PLC controller on the outer wall of the water storage tank via cables. Therefore, the water temperature in the water storage tank 1 can be intelligently controlled.

[0020] A circulating water pipe is installed at the right end of the water storage tank 1. The circulating water pipe includes a circulating water supply pipe 7 and a circulating water outlet pipe 12. The circulating water supply pipe 7 is connected to the lower side wall of the water storage tank 1, and the circulating water outlet pipe 12 is connected to the upper side wall of the water storage tank 1. A bow-shaped cooling water pipe 9 is laid inside the large-volume concrete 10, connecting the water storage tank 1 to the bow-shaped cooling water pipe 9 via the circulating water supply pipe 7 and the circulating water outlet pipe 12. The circulating water supply pipe 7 is equipped with a water pump 5, a temperature sensor 3, and a flow meter 6. The water pump 5 pressurizes the circulating water, and the temperature sensor 3 and the flow meter 6 measure the inlet water temperature and flow rate in real time to ensure stable cooling inside the large-volume concrete 10. A solenoid valve 11 and a temperature sensor 3 are installed on the circulating water outlet pipe 12 to monitor the heat carried out. Sprayers 8 are installed on the surface of the circulating water pipe at the inlet and outlet of the large volume concrete 10. Sprayers are also installed on the circulating water supply pipe 7 and the circulating water outlet pipe 12. The sprayers 8 are higher than the surface of the large volume concrete 10. The sprayers 8 are turned on after the concrete has initially set, so as to achieve the effect of spraying water to cure the concrete surface.

[0021] The connection between nozzle 8 and the circulating water channel is as follows: Figure 2 As shown, it is connected to the circulating water pipe through a connecting pipe 81 to form a three-way structure. A water mist nozzle 82 is installed at the end of the connecting pipe 81. In order to make the water mist spray more even and cover a larger area, a throat with a reduced diameter is installed on the connecting pipe 81 to form a Venturi structure. An air pipe 83 is installed on the throat to inject pressurized air into the connecting pipe, thereby increasing the kinetic energy of the sprayed water.

[0022] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A mass concrete temperature and moisture maintaining curing device, comprising a circulating water pipe with a part of the pipe arranged in the mass concrete, a temperature sensor and a water pump arranged on the circulating pipe, characterized in that: It also comprises a water storage tank arranged beside the mass concrete, the water storage tank is connected with the circulating pipeline, the circulating pipeline is provided with a nozzle at the surface position of the mass concrete; a connecting pipe is arranged between the nozzle and the circulating pipeline, a booster throat pipe is arranged on the connecting pipe, a gas pipe connected with high-pressure gas is arranged on the throat pipe; an underground water diversion pipe is arranged on the water storage tank.

2. The mass concrete temperature and moisture maintaining and curing device according to claim 1, characterized in that: The circulating pipeline comprises a circulating water inlet pipe, a circulating water outlet pipe and an arch-shaped cooling water pipe, and temperature sensors are arranged on the circulating water inlet pipe, the circulating water outlet pipe and the arch-shaped cooling water pipe.

3. The mass concrete temperature and moisture maintaining and curing device according to claim 2, characterized in that: The water pump is arranged on the circulating water inlet pipe, a water flow meter is arranged on the circulating water inlet pipe, and an electromagnetic valve is arranged on the circulating water outlet pipe.

4. The mass concrete temperature and moisture maintaining and curing device according to claim 1, characterized in that: The water storage tank is provided with a temperature sensor and a heating device.

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