CN214030201U - Cooling and heat insulating structure of raw material bin of premixed concrete - Google Patents
Cooling and heat insulating structure of raw material bin of premixed concrete Download PDFInfo
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- CN214030201U CN214030201U CN202021667470.0U CN202021667470U CN214030201U CN 214030201 U CN214030201 U CN 214030201U CN 202021667470 U CN202021667470 U CN 202021667470U CN 214030201 U CN214030201 U CN 214030201U
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Abstract
The utility model discloses a former feed bin of ready-mixed concrete cooling heat insulation structure, including silo and cooling water system, cooling water system includes the water receiver and encircles the condenser tube on silo surface, the water receiver with condenser tube passes through inlet tube and wet return formation circulation water route, the silo surface with the condenser tube surface all sets up reflection of light insulating layer. The utility model discloses an at the silo, the condenser tube surface is applied paint with a brush and is reflected light thermal-insulated lacquer, and surround condenser tube and reduce the silo internal temperature on the silo surface, the thermal-insulated lacquer of reflection of light uses reflecting material to block or reflect the infrared ray, isolated heat transfer through materials such as hollow microballon simultaneously, and carry out cold water heat transfer cooling through the condenser tube, prevent that silo internal temperature from rising, in order to reduce the groove temperature of leaving of ready-mixed concrete, the temperature stress that produces when reducing concrete placement, this scheme simple structure, the installation reliability is high, low cost relatively, the durability is high, it is effectual to keep warm.
Description
Technical Field
The utility model relates to an engineering construction technical field, more specifically say, relate to a former feed bin of premixed concrete heat insulation structure of cooling.
Background
The concrete pouring method has the advantages that the weather in summer is hot, the sunlight is sufficient, the cementing materials such as cement, fly ash and slag powder stored in the silo before the premixed concrete are caused to be high in temperature, the groove outlet temperature of the premixed concrete is directly influenced to be high, even under the shielding condition, the groove outlet temperature of the premixed concrete is still higher than the ambient temperature by 5-10 ℃, the concrete pouring temperature after transportation is caused to be too high, the temperature stress generated by a formed concrete casting body is large, the concrete is prone to cracking, and the water leakage phenomenon is caused.
In the prior art, in order to reduce the temperature stress of a concrete casting body, expensive ice water is generally adopted for cooling after forming premixed concrete, or a cooling water system is adopted for cooling or the thickness of a concrete heat-insulating layer is increased when the concrete is cast, so that the heat-insulating period is prolonged, the development of the next procedure is influenced, and the site construction cost is higher. In the aspect of reducing the temperature of the ready-mixed concrete discharged from the tank, the prior art generally adopts means of wrapping a heat preservation surface on the surface of the silo or arranging a heat insulation plate and the like to play a role in heat insulation, but the method has the advantages of low installation reliability, poor durability, large cleaning difficulty and unsatisfactory heat preservation effect.
The above disadvantages need to be improved.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, the utility model provides a former feed bin of ready mixed concrete heat insulation structure of cooling down.
The utility model discloses technical scheme as follows:
the utility model provides a former feed bin of ready-mixed concrete cooling heat insulation structure, includes silo and cooling water system, cooling water system includes the water receiver and encircles the condenser tube on silo surface, the water receiver with condenser tube passes through inlet tube and wet return formation circulation water route, the silo surface with condenser tube surface all sets up reflection of light insulating layer.
Foretell former feed bin of premixed concrete cooling heat-proof structure, the water receiver with set up pressure stabilizing device between the condenser tube, last first thermometer of installation and the manometer of pressure stabilizing device.
Further, the pressure stabilizing device is connected with the water receiver through an overflow pipe.
Foretell former feed bin of ready-mixed concrete cooling heat-insulating structure, condenser tube is 5 centimetres square steel pipe.
Foretell former feed bin of ready-mixed concrete cooling heat-insulating structure, the wet return sets up the second thermometer.
The temperature-reducing and heat-insulating structure of the premixed concrete raw material bin is characterized in that the water inlet pipe is connected with the water inlet of the cooling water pipe arranged at the upper part of the silo, and the water return pipe is arranged at the water outlet of the cooling water pipe arranged at the lower part of the silo.
According to the cooling and heat insulating structure of the premixed concrete raw material bin, the reflective heat insulating layer material comprises JA-2020 ultrathin heat insulating paint.
The cooling and heat insulating structure for the premixed concrete raw material bin is characterized in that the reflective heat insulating layer comprises a reflective layer and a heat insulating layer, the reflective layer is spherical or rhombic, and the heat insulating layer is hollow in structure.
Further, the reflective layer material comprises boron nitride, gold red titanium dioxide or superfine aluminum foil.
Further, the heat insulation layer material comprises space polymer emulsion or nano glass hollow microspheres.
According to the above scheme the utility model discloses, its beneficial effect lies in, the utility model discloses an at the silo, the condenser tube surface is applied paint with a brush reflection of light thermal-insulated lacquer, and surround condenser tube on the silo surface and reduce silo internal temperature, reflection of light thermal-insulated lacquer uses reflecting material to block or reflect the infrared ray, simultaneously through the isolated heat transfer of materials such as hollow microsphere, and carry out cold water heat transfer cooling through the condenser tube, prevent that silo internal temperature from rising, with the play groove temperature that reduces the ready-mixed concrete, the temperature stress that produces when reducing concrete placement, this scheme simple structure, the installation reliability is high, low cost relatively, the durability is high, it is effectual to keep warm.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of a cooling water system.
Wherein, in the figures, the respective reference numerals:
1. a silo; 101. feeding and discharging ports; 2. a cooling water system; 201. a water reservoir; 202. a water pump; 203. a voltage stabilizer; 204. a first thermometer; 205. a pressure gauge; 206. a water return pipe; 207. a cooling water pipe; 208. a water inlet pipe; 209. an overflow pipe; 210. a second thermometer.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "disposed" or "connected" to another element, it can be directly or indirectly disposed on the other element. The terms "upper", "lower", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are only for convenience of description and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features.
The utility model provides a former feed bin of ready-mixed concrete cooling heat insulation structure, includes silo 1 and cooling water system 2, and cooling water system 2 includes water receiver 201 and condenser tube 207 around silo 1 surface, and water receiver 201 and condenser tube 207 form the circulation water route through inlet tube 208 and wet return 206, and silo 1 surface and condenser tube 207 surface all set up reflection of light insulating layer.
The utility model discloses an at silo 1, condenser tube 207 coats with a brush on surface and reflects light thermal-insulated lacquer, and surround condenser tube 207 on silo 1 surface and reduce 1 inside temperature of silo, the thermal-insulated lacquer of reflecting light uses reflecting material to block or reflect the infrared ray, simultaneously through the isolated heat transfer of materials such as hollow microballon, and carry out cold water heat transfer cooling through condenser tube 207, prevent 1 inside temperature in silo and rise, with the play groove temperature that reduces premixed concrete, the temperature stress that produces when reducing concrete placement, this scheme simple structure, the installation reliability is high, the cost is cheap relatively, the durability is high, it is effectual to keep warm.
As shown in fig. 1, the surface of the silo 1 surrounds the cooling water pipe 207, the cooling water in the water reservoir 201 flows into the water inlet of the cooling water pipe 207 on the upper portion of the silo 1 through the water inlet pipe 208 under the driving of the water pump 202, the cooling water exchanges heat with the silo 1 along the cooling water pipe 207 to reduce the surface temperature of the silo 1, and finally flows back to the water reservoir 201 from the water outlet of the cooling water pipe 207 on the lower portion of the silo 1. The silo 1 stores premixed concrete inside, and the lower part of the silo is provided with a feed port 101.
Preferably, in order to ensure the smoothness of the circulating water path and the normal operation of the cooling operation, a pressure stabilizer 203 is arranged between the water pump 202 and the cooling water pipe 207, the pressure stabilizer 203 is provided with a pressure gauge 205, the water inlet pressure of the cooling water pipe 207 is monitored in real time, the pressure stabilizer 203 is communicated with the water receiver 201 through an overflow pipe 209, and when the water flow vibrates, the pressure is stabilized through the overflow pipe 209.
The pressure stabilizer 203 is provided with a first thermometer 204, and the water return pipe 206 is provided with a second thermometer 210 for monitoring the inlet water temperature and the outlet water temperature of the cooling water pipe 207 and indirectly knowing the temperature condition inside the silo 1.
Preferably, the cooling water pipe 207 is a square steel pipe of 5 cm, so that the cleaning and the installation are convenient, and the reliability is high.
As shown in fig. 2, the water storage 201 is an underground water tank or a water pool, the cooling water stored in the water storage is driven by a water pump 202 to enter a cooling water pipe 207 through a pressure stabilizer 203 from a water inlet pipe 208, the cooling water overflowing due to unstable pressure in the process flows back to the water storage 201 through an overflow pipe 209, and the water flow condition is monitored by a first thermometer 204 and a pressure gauge 205. The cooling water pipe 207 surrounds the surface of the silo 1, exchanges heat with the silo 1 to reduce the temperature of the surface of the silo 1, heats up the cooling water, and returns to the water storage 201 through the water return pipe 206, wherein a second thermometer 210 is arranged to monitor the cooling effect.
In this embodiment, the reflective insulation layer is a reflective insulation coating, which has the following advantages:
(1) excellent heat-insulating performance; (2) the bonding property with the metal tank body is good; (3) good durability; (4) the cleaning is convenient; (5) the repair is easy; (6) spraying or brushing; (7) is environment-friendly.
In one embodiment, the reflective thermal insulation coating comprises JA-2020 ultra-thin thermal insulation coating, and the parameters are as follows:
| the coating comprises the following components: | one component | Temperature resistance range: | ≤148℃ |
| the coating property is as follows: | aqueous and environment-friendly | Layer appearance: | white colour |
| Heat reflectance: | 0. 90 | waterproof performance: | penetration prevention |
| Coefficient of thermal conductivity: | 0. 042W/mK | reflection of infrared rays: | 0. 1-18um |
| adhesion force: | |
The reflective heat insulation layer comprises a reflective layer and a heat insulation layer. The reflecting layer is made of materials with high light and heat reflectivity, such as boron nitride, rutile titanium dioxide, superfine aluminum foil and the like, which are spherical or rhombic, and the shapes are favorable for improving the reflectivity or the refractive index of infrared rays in illumination, so that the heat reflectivity of the reflecting layer to the infrared rays can reach 90 percent, most of sunlight heat is reflected to the air, and the heat reaching the silo 1 is greatly reduced. The residual heat is blocked by the heat insulating layer, and the heat insulating layer selects substances with poor heat transfer performance, such as space polymer emulsion or nano glass hollow microspheres, to prevent the heat from being transferred to the silo 1, isolate the heat and reduce the heat reaching the silo 1. The effect of the reflective heat-insulating layer is equivalent to that of adding a sun-proof heat-insulating coating on the heat-insulating coating, and the heat-insulating effect of the reflective heat-insulating layer is far better than that of using a single-layer heat-insulating coating. The coating is coated on the surface of the silo 1 and the surface of the cooling water pipe 207, so that the temperature of the premixed concrete in the silo 1 and the cooling water in the cooling water pipe 207 is ensured not to be increased due to the influence of the environment, and the temperature of the concrete discharged from the groove is reduced.
The silo 1 is provided with a reflective heat-insulating layer, namely reflective heat-insulating coating, and the reflective heat-insulating coating can be brushed, rolled, smeared and sprayed, is uniformly stirred before use, and is recommended to be stirred by mechanical strength so as to achieve better effect. Before coating, an object to be coated needs to be pretreated, the surface of the object to be coated needs to be free of dust, oil stain, fragments, rust, moisture and other foreign matters which may influence the adhesive force, the temperature of the surface of the object to be coated and the surface of coating equipment are both in the range of 8-60 ℃, and the object surface to be coated and the surface of the coating equipment cannot be directly coated and brushed at low temperature or high temperature. The painting environment requires that the relative humidity of air is less than 58 percent, the air temperature is above 12 ℃, and the painted part is ventilated and dried. If the air humidity of the construction environment is high and the environment temperature is low, the air temperature can be heated by the heat source to cure the coating, the surface temperature of the heated coating is not more than 60 ℃, and the phenomenon that the coating is vaporized and bubbled to influence the light reflecting and heat insulating functions of the coating is avoided. When coating, the surface of an object to be coated is coated for three times, and the coating interval time is about 25 minutes. The surface is provided with a reflective thermal insulation layer and the surface is not provided with a silo 1 of the reflective thermal insulation layer, and the difference of the internal temperature of the silo 1 and the internal temperature of the silo can be 28 ℃ under the same environment and conditions.
The cost for reducing the temperature of the concrete by using the prior art is large, and is as follows:
(1) the mixing plant mixes the concrete with the chilled water, and the cost is increased by about 5 yuan when the temperature is reduced by 1 ℃;
(2) a cooling water system 2 is adopted to reduce the temperature of the concrete on the construction site, and the cost is increased by about 2 yuan when the temperature is reduced by 1 ℃;
(3) the surface of the concrete is covered with the heat insulation material on the site of the construction site, the lower temperature difference between the inside and the outside of the concrete is kept, the temperature is gradually reduced, and the cost is increased by about 4 yuan when the temperature is reduced by 1 ℃.
Adopt the utility model discloses reduce the play groove temperature of premixed concrete, every reduces about 0.4 yuan of 1 degree centigrade incremental cost.
At present, the capital construction investment of China still has very big rising space, and the use amount of concrete is also increasing gradually, and the commodity concrete output 25.5 billion cubic meters in the China in 2019, wherein like bulky concrete such as subway underground station and interval to and each civil engineering who is under construction in summer, all need reduce the temperature of concrete in order to reduce temperature stress, the utility model discloses can save a large amount of cooling costs, have good social and economic benefits.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The cooling and heat insulating structure of the premixed concrete raw material bin is characterized by comprising a silo and a cooling water system, wherein the cooling water system comprises a water storage device and a cooling water pipe surrounding the surface of the silo, the water storage device and the cooling water pipe form a circulating water path through a water inlet pipe and a water return pipe, and the outer surface of the silo and the outer surface of the cooling water pipe are both provided with a reflective heat insulating layer.
2. The temperature-reducing and heat-insulating structure for the ready-mixed concrete raw material bin as claimed in claim 1, wherein a pressure stabilizer is arranged between the water storage device and the cooling water pipe, and a first thermometer and a pressure gauge are mounted on the pressure stabilizer.
3. The temperature-reducing and heat-insulating structure for the ready-mixed concrete raw material bin as claimed in claim 2, wherein the pressure stabilizer is connected with the water receiver through an overflow pipe.
4. The cooling and heat insulating structure for the ready-mixed concrete raw material bin according to claim 1, wherein the cooling water pipe is a square steel pipe with the length of 5 cm.
5. The cooling and heat insulating structure for the ready-mixed concrete raw material bin as claimed in claim 1, wherein a second thermometer is arranged on the water return pipe.
6. The temperature-reducing and heat-insulating structure for the premixed concrete raw material bin as claimed in claim 1, wherein the water inlet pipe is connected with a water inlet of the cooling water pipe arranged at the upper part of the silo, and the water return pipe is arranged at a water outlet of the cooling water pipe arranged at the lower part of the silo.
7. The ready mixed concrete raw material bin temperature reduction and heat insulation structure according to claim 1, wherein the reflective heat insulation layer material comprises JA-2020 ultrathin heat insulation paint.
8. The cooling and heat insulating structure for the ready-mixed concrete raw material bin according to claim 1, wherein the reflective heat insulating layer comprises a reflective layer and a heat insulating layer, the reflective layer is made of a spherical or rhombic material, and the heat insulating layer is hollow in a material structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021667470.0U CN214030201U (en) | 2020-08-12 | 2020-08-12 | Cooling and heat insulating structure of raw material bin of premixed concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021667470.0U CN214030201U (en) | 2020-08-12 | 2020-08-12 | Cooling and heat insulating structure of raw material bin of premixed concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214030201U true CN214030201U (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021667470.0U Active CN214030201U (en) | 2020-08-12 | 2020-08-12 | Cooling and heat insulating structure of raw material bin of premixed concrete |
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| Country | Link |
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| CN (1) | CN214030201U (en) |
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- 2020-08-12 CN CN202021667470.0U patent/CN214030201U/en active Active
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