Annular moisturizing air outlet regulator of concrete curing room
By designing an annular layout air outlet regulator in the concrete curing room, the problem of uneven air output during spray-and-air supply maintenance is solved, and uniform maintenance of concrete test blocks is achieved, and the strength and quality of the test blocks are improved.
Patent Information
- Application Number
- CN202420355980.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-27
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-02-27
AI Technical Summary
During the concrete spray-and-air supply maintenance process, the air output is locally concentrated and uneven, resulting in excessive maintenance temperature and the strength of some concrete test blocks decreases.
A concrete curing chamber ring-shaped moisturizing air outlet regulator is designed, using a circular layout square ventilation duct and a double-layer galvanized stainless steel plate air outlet regulator. The air outlet size is adjusted through a push-pull regulator to ensure uniformity of air outlet volume.
It effectively solves the problem of uneven air output, ensures the uniformity of temperature and humidity of the concrete test block during the curing process, and improves the strength and quality of the test block.
Smart Images
Figure CN222472890U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of expressway structural engineering, and in particular relates to an annular moisturizing air outlet regulator for a concrete curing room. Background Art
[0002] Concrete test block curing technology is to carry out standard curing on concrete test blocks during the concrete construction process, and place them in an environment with suitable temperature, humidity and other conditions to ensure that the concrete test blocks can reach the specified strength standards, thereby ensuring the quality of concrete structure engineering.
[0003] The maintenance of concrete test blocks is a very important part of the concrete construction process, which directly affects the quality and service life of the project; therefore, it must be maintained in strict accordance with the requirements of the specifications. If the maintenance is improper, it is easy to cause the strength of the concrete test blocks to decrease or even quality accidents. The technical solution for the maintenance of concrete test blocks is an indispensable and important part of the construction process. It directly affects the quality and strength of the concrete test blocks and cannot truly reflect the actual quality of the concrete used in the project; the uniformity of the temperature and humidity of the curing room is an important factor in ensuring the strength of concrete. The strength of concrete is a gradual development process. The degree and speed of its development depend on the hydration state of the cement, and temperature and humidity are important factors affecting the speed and degree of cement hydration; therefore After the concrete is formed, it must maintain appropriate temperature and sufficient humidity for a certain period of time to allow the cement to fully hydrate. This is the maintenance of concrete; the higher the curing temperature, the faster the cement hydration rate and the faster the strength of the concrete develops; on the contrary, at low temperatures, the strength of the concrete develops slowly. When the temperature drops below the freezing point, most of the water in the concrete freezes, not only does the cement stop hydrating and the strength stops developing, but the water in the concrete pores freezes, causing volume expansion (about 9%) and considerable compressive stress on the pore walls (up to 100MPa), thereby destroying the hardening concrete structure and causing the concrete to lose its acquired strength; at the same time, the early strength of the concrete is low and it is more susceptible to freezing. Utility Model Content
[0004] The purpose of the utility model is to propose an annular moisturizing air outlet regulator for a concrete curing room, so that it can solve the problems of local concentration and uneven air volume, excessively high curing temperature, and reduced strength of some concrete test blocks close to the air outlet caused by spray and air supply curing of concrete, accelerate the curing progress of concrete test blocks, and improve the overall quality of concrete under the premise of ensuring the quality and strength of concrete test blocks; the utility model is suitable for concrete curing rooms in test laboratories for concrete test blocks cured by spray and air supply in highway projects, and through the transformation of concrete curing rooms, the curing efficiency of concrete test blocks is improved, and the quality and strength of concrete test blocks are increased.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A circular moisturizing air outlet regulator for a concrete curing room, the circular moisturizing air outlet regulator has a square ventilation duct arranged in the curing room; the square ventilation duct is arranged in a ring and hoisted around the concrete curing room; an air outlet is arranged on the square ventilation duct corresponding to each concrete test block, and the width of each air outlet is 30 cm; an air outlet regulator is arranged at each air outlet, and the air outlet regulator is a double-layer galvanized stainless steel plate; the galvanized stainless steel plate has a plurality of circular holes in a diamond layout; the galvanized stainless steel plate is welded to a push-pull regulator, i.e., a galvanized stainless steel round block with a diameter of 4 cm, and the push-pull regulator drives the galvanized stainless steel plate to adjust the size of the air outlet during adjustment.
[0007] The diameter of the circular hole on the galvanized stainless steel plate is 1 cm.
[0008] The utility model proposes a concrete curing room annular moisturizing air outlet regulator for curing concrete test blocks by spraying and air supply, which adopts the above technical scheme and has the following beneficial effects:
[0009] First, the annular moisturizing air outlet regulator for the concrete curing room adopted by the utility model is an improved design of the spray and air supply curing device after the concrete curing room of the laboratory is built. The use effect shows that it effectively solves the common phenomenon of local whitening, drying, and uneven temperature and humidity of concrete specimens caused by direct blowing air supply.
[0010] Secondly, the utility model designs a concrete curing room annular moisturizing air outlet regulator for curing concrete test blocks by spraying and air supply, and the equipment material is made of galvanized stainless steel to prevent the material from rusting and corroding in a high humidity environment for a long time.
[0011] Thirdly, the annular moisturizing air outlet regulator for the concrete curing room designed by the utility model is provided with an air outlet regulator, which adjusts the air volume of each air outlet in turn according to the position of each air outlet from near to far from the main unit and the distribution of the concrete test block rack, thereby effectively ensuring the uniformity of the air volume, directly affecting the quality and strength of the concrete test blocks, and truly reflecting the actual quality of the concrete used in the project. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 This is a schematic diagram of the annular moisturizing air outlet regulator of the utility model;
[0013] Figure 2 It is a schematic diagram of the air outlet of the annular moisturizing air outlet regulator of the concrete curing room of the utility model.
[0014] In the figure: 1. square ventilation duct, 2. air outlet, 3. air outlet regulator. DETAILED DESCRIPTION
[0015] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.
[0016] Through comparison, it was found that the air volume in the concrete curing room without the annular moisturizing air outlet regulator was locally concentrated and uneven, the water vapor was unevenly distributed, some concrete test blocks were not exposed to water vapor curing, and some concrete test blocks were directly blown by the air supply port. The moisture on the surface of the concrete test blocks will inevitably evaporate in large quantities, which directly affects the quality and strength of the concrete test blocks. The water vapor distribution in the concrete curing room using the annular moisturizing air outlet regulator is uniform and effectively solves the common phenomenon of local whitening, drying, and uneven temperature and humidity of concrete specimens caused by direct blowing air supply. The comparison of the quality and strength of concrete test blocks in the two curing rooms found that in the concrete curing room using the annular moisturizing air outlet regulator, the concrete test blocks are subjected to uniform and sufficient temperature and humidity, so that the cement is fully hydrated to ensure that the curing quality of the concrete test pieces meets the expected requirements, truly reflecting the actual quality of the concrete used in the project.
[0017] like Figure 1 As shown, the annular moisturizing air outlet regulator equipment is made of galvanized stainless steel to prevent the material from rusting and corroding in a high humidity environment for a long time. The equipment adopts a rectangular structure with a width of 25cm and a height of 40cm. Different from the direct blowing method of the air outlet of traditional maintenance equipment, it adopts a circular layout and is arranged around the upper side of the wall of the maintenance room. Air outlets are set in front of and below the equipment every 60cm. The air outlet adopts a circular hole with a diameter of 1cm and a diamond layout with an interval of 1.5cm. The overall air outlet width is 30cm.
[0018] like Figure 2 As shown in the figure, the positions of the air outlets from the concrete specimen spray and air supply main unit are from near to far, resulting in inconsistent air volume in the square ventilation duct. Therefore, it is necessary to adjust the push-pull regulator to close some small holes to change the size of the wind area to make the air outlet intensity the same, so that each concrete specimen is blown evenly. During the curing process, each concrete specimen is subject to the same environmental factors such as temperature and humidity.
[0019] The specific processing steps are as follows:
[0020] 1. After the concrete curing room of the test laboratory is constructed according to the design drawings, the spray and blower of the concrete test block are improved, and a square ventilation duct (25cm wide and 40cm high rectangular structure) is installed in the curing room and hoisted around the concrete curing room. The equipment material is galvanized stainless steel to prevent the material from rusting and corrosion in a high humidity environment for a long time.
[0021] 2. In the square ventilation duct (25cm wide and 40cm high rectangular structure), air outlets are set at intervals of 60cm in front of and below the equipment. The air outlets are circular holes with a diameter of 1cm and a diamond layout with an interval of 1.5cm. The overall width of the air outlet is 30cm.
[0022] 3. An air outlet regulator is set at the air outlet. The air outlet position adopts a double-layer galvanized stainless steel plate with a diameter of 1cm and a diamond layout with an interval of 1.5cm. It is welded on a push-pull regulator. The air volume of each air outlet is adjusted in turn according to the position of each air outlet from near to far from the concrete test block spray and air supply host and the distribution of the concrete test block rack, so as to effectively ensure the uniformity of the air volume.
[0023] 4. Control the size of the air outlet by adjusting the push-pull regulator. According to the placement and density of the concrete specimens on the concrete specimen rack, reasonably adjust the size of the air outlet to ensure that each concrete specimen is blown evenly. When the curing temperature is too high, especially when the heating rate is too fast, the moisture on the surface of the concrete specimen will definitely evaporate in large quantities, resulting in poor hydration of the cement on the surface of the concrete specimen due to lack of water. At the same time, due to the high temperature, the hydration rate of the internal cement is significantly accelerated, which may lead to uneven distribution of hydration products and excessive and rapid formation of hydration products that hinder the contact between cement and water, thereby affecting the continued hydration of cement, slowing down the later strength development of concrete, and even stopping the development. Rapid heating causes uneven heating of concrete specimens, generating harmful thermal stresses that cause cracks inside the concrete specimens and reduce the strength of the concrete specimens. When the curing temperature is low, cement hydration is slow, and hydrates with less porous structures are generated, which reduces the strength of the concrete specimens, and the curing effect is poor. It cannot truly and effectively reflect the strength of concrete, and cannot achieve the role of guiding the site, and the construction quality cannot be guaranteed. During the curing process, it is necessary to ensure the stability and uniformity of temperature and humidity, and the rationality of curing time. Only in this way can we ensure that the curing quality of concrete specimens meets the expected requirements and create the best experimental environment.
[0024] 1. Adjust the size of the air outlet regulator, and adjust the air volume of each air outlet in turn according to the position of each air outlet from near to far from the main unit and the distribution of the concrete test block rack to effectively ensure the uniformity of the air volume.
[0025] 2. The position of the annular moisturizing air outlet regulator should be designed in detail according to the height of the concrete test block rack, the number and position of the concrete test blocks, to ensure that the air outlet blows evenly to each concrete test block and the indoor water vapor is evenly distributed.
Claims
1. A concrete curing room annular moisturizing air outlet regulator, characterized in that: The annular moisturizing air outlet regulator has a square ventilation duct arranged in the curing room; the square ventilation duct is arranged in a ring and hoisted around the concrete curing room; an air outlet is arranged in the square ventilation duct corresponding to each concrete test block, and the width of each air outlet is 30 cm; an air outlet regulator is arranged at each air outlet, and the air outlet regulator is a double-layer galvanized stainless steel plate; the galvanized stainless steel plate has multiple circular holes in a diamond layout; the galvanized stainless steel plate is welded on a push-pull regulator, that is, a galvanized stainless steel round block with a diameter of 4 cm. When adjusting, the push-pull regulator drives the galvanized stainless steel plate to adjust the size of the air outlet.
2. The annular moisturizing air outlet regulator for a concrete curing chamber as claimed in claim 1, characterized in that: The diameter of the circular hole on the galvanized stainless steel plate is 1 cm.