Thermal insulation device for low-temperature grouting of prefabricated column

Abstract

The utility model provides a heat preservation device for low-temperature grouting of a prefabricated column, which comprises an electric heat tracing wound on a grouting section of the prefabricated column, and a front sealing frame, a rear sealing frame, a right sealing frame and a left sealing frame which are used for sealing the grouting section to form a heat preservation cavity and are sequentially connected, the front closed frame comprises a temperature probe used for detecting the temperature of the heat preservation cavity and a temperature control box electrically connected with the electric heat tracing and the temperature probe. According to the implementation mode, the heat preservation cavity defined by the front sealing frame, the rear sealing frame, the right sealing frame and the left sealing frame can play a heat preservation role in the grouting section. And when the temperature is lower than the construction temperature required by the low-temperature grouting material, the temperature control box can control the electric heat tracing wound on the grouting section to heat the low-temperature grouting material. In this way, the low-temperature grouting material can reach the required construction temperature through the electric heat tracing, and then the construction quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a heat preservation device for low-temperature grouting of prefabricated columns. Background Art

[0002] As the supporting body of vertical components, prefabricated columns are becoming more and more common in construction projects. The connecting sleeve at the bottom of the prefabricated column and the reserved steel bars of the lower plate structure are connected as a whole through grouting, and special grouting materials are used for grouting.

[0003] However, some prefabricated columns are grouting in winter, and low-temperature grouting materials are generally used for winter grouting. Low-temperature grouting materials have high temperature requirements. Commonly used low-temperature grouting materials require the grouting temperature to be within the range of -5℃~10℃. However, due to insufficient insulation conditions during the construction process, the construction quality of the grouting is affected; or a large amount of manpower and material resources are consumed during the insulation stage, resulting in huge cost investment. Utility Model Content

[0004] The content of this utility model is used to introduce the concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this disclosure is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.

[0005] The utility model provides a heat preservation device for low-temperature grouting of prefabricated columns to solve the technical problems mentioned in the above background technology part.

[0006] The utility model discloses a heat preservation device for low-temperature grouting of prefabricated columns, comprising an electric heat trace wound around a grouting section of the prefabricated column and a front closing frame, a rear closing frame, a right closing frame and a left closing frame connected to close the grouting section to form a heat preservation cavity, wherein:

[0007] The front closing frame includes a temperature probe for detecting the temperature of the heat preservation cavity and a temperature control box electrically connected to the electric heating and the temperature probe;

[0008] In the working state, the temperature control box adjusts the electric heating according to the temperature collected by the temperature probe.

[0009] Optionally, the front closed frame, rear closed frame, right closed frame and left closed frame all include a flame-retardant quilt with upper and lower ends extending toward the prefabricated column, a frame frame and horizontal and vertical frames for support set on the flame-retardant quilt; the temperature control box is installed on the horizontal and vertical frames of the front closed frame.

[0010] Optionally, the electric heating winding interval is 8 cm.

[0011] Optionally, the electric heating winding height is 1.2m.

[0012] Optionally, the temperature probe is connected to the temperature control box via a temperature measuring connecting line.

[0013] Optionally, the front closed frame, the rear closed frame, the right closed frame and the left closed frame wrap the prefabricated column in four directions.

[0014] Optionally, rotating shafts are provided on both sides of the right closed frame and the left closed frame.

[0015] Optionally, shaft sleeves are provided on both sides of the front closing frame and the rear closing frame.

[0016] Optionally, the rotating shaft is detachably connected to an adjacent shaft sleeve.

[0017] Optionally, the preset temperature range of the insulation cavity is -3°C to 8°C.

[0018] The above-mentioned embodiments of the utility model have the following beneficial effects: through the insulation device for low-temperature grouting of prefabricated columns in some embodiments of the utility model, the low-temperature grouting material after grouting can be kept within the required construction temperature, thereby ensuring the construction quality.

[0019] Specifically, the heat-insulating cavity surrounded by the front closed frame, the rear closed frame, the right closed frame, and the left closed frame can insulate the grouting section. Furthermore, the temperature in the grouting section can be collected by the temperature probe. When the temperature is lower than the construction temperature required by the low-temperature grouting material, the temperature control box can control the electric heating wrapped around the grouting section to heat the low-temperature grouting material.

[0020] In this way, the electric heating can make the low-temperature grouting material reach the required construction temperature, thereby ensuring the construction quality. The above-mentioned insulation cavity can play a role in insulation, maintain the above-mentioned construction temperature, thereby reducing the power consumption of the electric heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of a heat preservation device for low-temperature grouting of prefabricated columns of the utility model;

[0023] Figure 2It is an exploded schematic diagram of a heat preservation device for low-temperature grouting of a prefabricated column of the utility model;

[0024] Figure 3 It is a structural schematic diagram of the front closed frame of the utility model.

[0025] Description of reference numerals:

[0026] 1: Prefabricated column; 2: Electric heating; 3: Grouting port; 4: Slurry outlet; 5: Front closed frame; 501: Horizontal and vertical frames; 502: Frame frame; 504: Bushing; 505: Temperature measuring connecting line; 506: Temperature probe; 507: Flame retardant quilt; 508: Rotating shaft; 6: Rear closed frame; 7: Right closed frame; 8: Left closed frame; 9: Temperature control box. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0031] like Figure 1-3 As shown, the heat preservation device for low-temperature grouting of prefabricated columns includes electric heating 2, a front closing frame 5, a rear closing frame 6, a right closing frame 7, and a left closing frame 8.

[0032] The front closed frame 5, the rear closed frame 6, the right closed frame 7, and the left closed frame 8 are connected to each other to form an insulating cavity that closes the grouting section of the prefabricated column 1. Specifically, when the prefabricated column 1 is assembled with the lower plate structure, the connecting sleeve in the prefabricated column 1 is usually placed on the reserved steel bars of the lower plate, and then the grouting material is injected through the grouting port 3 connected to the connecting sleeve, so that the prefabricated column 1 is firmly connected to the lower plate structure. The above-mentioned grouting section can be characterized as a range including the height of the above-mentioned connecting sleeve.

[0033] In the assembled state, the front closed frame 5 is arranged opposite to the rear closed frame 7. The left closed frame 8 is arranged opposite to the right closed frame 7. The front closed frame 5, the rear closed frame 6, the right closed frame 7 and the left closed frame 8 are similar in structure. Figure 3 The front closed frame 5 is taken as an example for explanation. The front closed frame 5 includes a flame retardant quilt 507 with upper and lower ends extending toward the prefabricated column 1. A frame frame 502 is arranged around the flame retardant quilt 507 for support. A horizontal and vertical frame 501 is also arranged inside the frame frame 502.

[0034] Axle sleeves 504 may be provided on both sides of the frame skeleton 502 of the front closed frame 5 and the rear closed frame 6. A rotating shaft 508 may be provided on both sides of the frame skeleton 502 of the right closed frame 6 and the left closed frame 8. The rotating shaft 508 can be detachably inserted into the axle sleeve 504, so that the front closed frame 5, the rear closed frame 6, the right closed frame 7, and the left closed frame 8 are detachably connected. In addition, since the flame-retardant quilt 507 extends toward the prefabricated column 1, the flame-retardant quilt 507 extended in the assembled state is engaged with each other and abuts against the prefabricated column 1, so that the front closed frame 5, the rear closed frame 6, the right closed frame 7, and the left closed frame 8 enclose a heat-insulating cavity with heat-insulating properties.

[0035] A temperature control box 9 can be arranged on the horizontal and vertical frames 501 of the front closed frame 5. The temperature control box 9 is electrically connected to the electric heat tracing 2. The electric heat tracing 2 is wound around the grouting section, the winding spacing can be set to 8 cm, and the winding height can be determined according to construction experience, for example, 1.2 m.

[0036] The temperature control box 9 is also connected to a temperature probe 506 via a temperature measuring connecting line 505. The temperature probe 506 is arranged in the heat preservation cavity to detect the temperature in the heat preservation cavity.

[0037] The electric heat tracing 2 provides power through the temperature control box 9 to heat up, so that the temperature of the insulation cavity is within a preset temperature range. The preset temperature range can be -3°C to 8°C. The grouting port 3 is arranged at the lower side of the grouting section, and the grouting port 4 is arranged at the upper side of the grouting section, forming a grouting system for the entire prefabricated column 1.

[0038] The front closed frame 5, the rear closed frame 6, the right closed frame 7, and the left closed frame 8 wrap the prefabricated column 1 in four directions. The flame retardant quilt 507 can play a heat insulation role, thereby forming a closed thermal insulation system.

[0039] The temperature control box 9 can be used as an electric box for electric heating 2 and also as a temperature regulating device for the heat preservation cavity. The temperature probe 506 detects the temperature in the heat preservation cavity, which is adjusted in real time by the temperature control box 9 to ensure that the temperature is controllable under low-temperature grouting conditions.

[0040] In actual work, when the temperature probe 506 detects that the temperature in the insulation cavity reaches 8°C, the temperature rise stops, and when the temperature drops below -3°C, the temperature starts to rise, so that the temperature in the temperature control box 9 is in the temperature range of -5°C to 10°C required by the low-temperature grouting material.

[0041] During installation, the electric heat tracing 2 is firstly wrapped around the prefabricated column 1 with a height of about 1.2m and a spacing of 8cm. Then, the front closed frame 5, the right closed frame 7, the rear closed frame 6, and the left closed frame 8 are connected into a closed structure through the rotating shaft 508 and the sleeve 504 to form an insulation cavity, so that the heating system and the insulation system are assembled. The temperature control box 9 is turned on to provide heating power to the electric heat tracing 2. The electric heat tracing 2 raises the temperature in the insulation cavity by releasing heat. In addition, the temperature control box 9 is used to set the warning temperature to -3℃ and 8℃ respectively. When the temperature in the insulation cavity reaches 8℃, the temperature rise stops. When the temperature is lower than -3℃, the temperature rise starts, so that the temperature in the temperature control box 9 is always maintained at -5℃~10℃. It solves the problem that it is difficult to achieve a good insulation effect under traditional insulation conditions. The utility model sets a reasonable insulation structure, performs external closed insulation and internal heating, and sets a temperature control box to adjust the temperature in real time, so as to achieve a good effect of adjusting the temperature of the grouting area.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A heat preservation device for low temperature grouting of prefabricated columns, characterized in that: It includes an electric heat trace wound around the grouting section of the prefabricated column and a front closing frame, a rear closing frame, a right closing frame, and a left closing frame connected to close the grouting section to form an insulation cavity, wherein: The front closing frame includes a temperature probe for detecting the temperature of the heat preservation cavity and a temperature control box electrically connected to the electric heating and the temperature probe; In the working state, the temperature control box adjusts the electric heating according to the temperature collected by the temperature probe.

2. The heat preservation device for low-temperature grouting of prefabricated columns according to claim 1, characterized in that: The front closed frame, rear closed frame, right closed frame and left closed frame all include a flame-retardant quilt with upper and lower ends extending toward the prefabricated column, a frame frame and a horizontal and vertical frame set on the flame-retardant quilt for support; the temperature control box is installed on the horizontal and vertical frames of the front closed frame.

3. The heat preservation device for low-temperature grouting of prefabricated columns according to claim 1, characterized in that: The electric heating winding interval is 8 cm.

4. The heat preservation device for low-temperature grouting of prefabricated columns according to claim 1, characterized in that: The electric heating winding height is 1.2m.

5. The heat preservation device for low-temperature grouting of prefabricated columns according to claim 1, characterized in that: The temperature probe is connected to the temperature control box via a temperature measuring connecting line.

6. The heat preservation device for low-temperature grouting of prefabricated columns according to claim 1, characterized in that: The front closed frame, the rear closed frame, the right closed frame and the left closed frame wrap the prefabricated column in four directions.

7. The heat preservation device for low-temperature grouting of prefabricated columns according to claim 6, characterized in that: Rotating shafts are arranged on both sides of the right closed frame and the left closed frame.

8. The heat preservation device for low-temperature grouting of prefabricated columns according to claim 7, characterized in that: Axle sleeves are arranged on both sides of the front closing frame and the rear closing frame.

9. The heat preservation device for low-temperature grouting of prefabricated columns according to claim 8, characterized in that: The rotating shaft is detachably connected to the adjacent shaft sleeve.

10. The heat preservation device for low temperature grouting of prefabricated columns according to claim 1, characterized in that: The preset temperature range of the heat preservation cavity is -3°C to 8°C.

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