Multi-combination leak repair system and usage method based on cold storage cold leakage

Abstract

The present invention discloses a multi-combination leak repair system and a usage method based on cold storage leakage, belonging to the field of repairing leaky cold storages. The multi-combination leak repair system includes a bracket, a multi-layer heat-insulating heating blanket, a temperature controller, and quartz wool. The bracket is placed at the crack, the multi-layer heat-insulating heating blanket is fixed above the bracket, the temperature controller is arranged inside the crack, and the quartz wool is arranged at the connection between the gap and the bracket. By adopting the above multi-combination leak repair system based on cold storage leakage, the present invention provides local heating through the combination of a multi-layer heat-insulating heating blanket and a ceramic heating sheet, enabling the foaming agent to still effectively expand and solidify under low-temperature environments.

Description

Technical Field

[0001] The present invention relates to the field of repairing leaky cold storages, and particularly to a multi-combination leak repair system and a usage method based on cold storage leakage. Background Art

[0002] In order to facilitate the loading and unloading of goods, when constructing the cold storage 11, the wooden pile foundation 15 is filled to a higher level, and then cement 14 is set above the wooden pile foundation 15 to level the ground. On the one hand, it can strengthen the ground insulation to reduce cold loss and save electricity; on the other hand, it can raise the loading / unloading area 17 so that the height of the loading / unloading area 17 on the soil layer 18 is flush with the position of the refrigerated truck carriage, facilitating rapid loading and unloading of goods. In addition, there is usually a certain gap between the insulation wall 12 and the external unloading area wall. The main purpose is to utilize the low thermal conductivity of air, and through constructing the air layer of the gap 13, the cold loss can be reduced as much as possible.

[0003] The current conventional cold storage 11 design usually adopts the above implementation scheme. After several years of use, the wooden pile foundation 15 of the cold storage 11 usually collapses due to uneven local heat reception for a long time, resulting in the generation of a through-type cold leakage gap 16 between the wall surface and the ground insulation layer, as Figure 1 shown. The cold leakage gap 16 usually runs along the junction of the ground and the wall, and the size is about 2 - 20 centimeters.

[0004] The existing method generally directly fills the gap with a foaming agent, but this method has the following limitations and disadvantages: the foaming agent cannot be used in a low-temperature environment. The cold storage operates at a low temperature (-18°C), and the existing foaming agent cannot be effectively used in such an environment because the low temperature will hinder the expansion and curing process of the foaming agent. The existing technical methods usually need to first raise the temperature of the environment, which means that the cold storage needs to be shut down, thus affecting the normal operation of the cold storage. Especially for a working cold storage, it is also necessary to transfer the existing materials in the cold storage, which is very likely to cause damage to the materials, and the economic cost of starting up after the cold storage is shut down is huge.

[0005] In view of the above problems, a multi-combination leak repair system and a usage method based on cold storage leakage are proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a multi-combination leak repair system and a usage method based on cold storage leakage, which solves the problem that the foaming agent cannot be used in a low-temperature environment and can effectively repair cracks without shutting down the cold storage.

[0007] To achieve the above object, the present invention provides a multi-combination leak repair system based on cold storage cold leakage, including a bracket, a multi-layer thermal insulation heating blanket, a temperature controller, and quartz wool. The bracket is placed at the crack, the multi-layer thermal insulation heating blanket is fixed above the bracket, the temperature controller is arranged inside the crack, and the quartz wool is arranged at the connection between the gap and the bracket.

[0008] Preferably, the bracket is welded by cylindrical iron or angle iron.

[0009] Preferably, the multi-layer thermal insulation heating blanket is fixed on the bracket by sewing or fixing with a tie-down strap through drilling.

[0010] Preferably, the multi-layer thermal insulation heating blanket includes an innermost layer, a middle layer, and an outermost layer. The innermost layer is a heating resistance wire blanket, the middle layer is heat insulation cotton, and the outermost layer is a protective material.

[0011] Preferably, foaming agent injection holes are uniformly arranged on the surface of the multi-layer thermal insulation heating blanket.

[0012] Preferably, an adjustable sealing ring is arranged around the foaming agent injection hole.

[0013] Preferably, the temperature controller includes a ceramic heating sheet and a temperature sensor, and both the ceramic heating sheet and the temperature sensor are arranged inside the crack.

[0014] The present invention also provides a method for using a multi-combination leak repair system based on cold storage cold leakage, including the following steps:

[0015] (1) Clean the crack and its surrounding area to ensure there is no dust and debris;

[0016] (2) Prepare all equipment and materials, including foaming agent, ceramic heating sheet, temperature sensor, and protective equipment;

[0017] (3) Install the heating equipment: Place the ceramic heating sheet and the temperature sensor at appropriate positions inside the crack to ensure close contact with the gap; when dealing with segmented treatment, fill the edges of the gaps on both sides of the entire device with quartz wool;

[0018] (4) Fix the heating equipment: Place the bracket at the position of the crack, and rely on the weight of the bracket to closely press the device against the wall surface; when the position of the bracket is unstable, fix it with an external heavy object, start the heating resistance wire blanket and the ceramic heating sheet, and start heating; monitor the temperature in real time through the temperature sensor to ensure that the temperature rises to about 2 - 5 °C;

[0019] (5) Remove the heating sheet and the sensor: After the temperature inside the crack rises to the target temperature, prepare for the injection of the foaming agent, and move the ceramic heating sheet and the temperature sensor to an area far away from the crack;

[0020] (6) Injection of foaming agent: Through the foaming agent injection holes on the multi-layer heat-insulating heating blanket, the foaming agent is sprayed or injected into the heated cracks, and the foaming agent rapidly expands to fill the cracks; the multi-layer heat-insulating heating blanket continues to be turned on to maintain the temperature of the foaming area at about 0°C; the heating ceramic sheet is selectively turned on or off according to actual needs until the foaming is completed;

[0021] (7) Trimming and protection: After the foaming agent is completely cured, remove the multi-layer heat-insulating heating blanket; use a knife to trim the excess foaming agent; apply a layer of waterproof coating or heat-insulating coating on the surface of the foaming agent.

[0022] Therefore, the present invention adopts the above multi-combination leak repair system based on cold storage cold leakage, and has the following beneficial effects:

[0023] (1) Provide a uniform and stable heat source through the multi-layer heat-insulating heating blanket and the ceramic heating sheet, raise the temperature of the crack and its surrounding area to about 0°C, so that the foaming agent can still effectively expand and cure in the low-temperature environment (such as -18°C) during the normal operation of the cold storage; there is no need to stop the machine and raise the temperature, and the cold storage can repair the crack under normal operation, reducing the impact on the operation of the cold storage and the stored goods, and improving the repair efficiency;

[0024] (2) Have low-temperature environment adaptability: The multi-layer heat-insulating heating blanket and the ceramic heating sheet provide a uniform and stable heat source, raise the temperature of the crack and its surrounding area to about 0°C, so that the foaming agent can still effectively expand and cure in the low-temperature environment;

[0025] (3) Simple operation, reduce the repair time and labor cost, and improve the repair efficiency;

[0026] (4) Have high adaptability: The heating blanket and the heating sheet are flexibly designed and can be adjusted according to the size and shape of the crack to adapt to various types of crack repairs;

[0027] (5) Through the uniformly distributed injection holes and the adjustable sealing ring, it is convenient to inject the foaming agent.

[0028] Next, through the drawings and embodiments, the technical solutions of the present invention will be further described in detail. Description of the Drawings

[0029] Figure 1 It is a schematic structural diagram of the cold storage and the cold leakage wall in the background technology;

[0030] Figure 2 It is a schematic structural diagram of an embodiment of the multi-combination leak repair system based on cold storage cold leakage of the present invention;

[0031] Figure 3 It is a schematic structural diagram of an embodiment of the multi-combination leak repair system based on cold storage cold leakage of the present invention provided with a multi-layer heat-insulating heating pad;

[0032] Figure 4 This is a schematic structural diagram of the support of the embodiment of the multi-combination leak repair system based on cold storage cold leakage of the present invention;

[0033] Reference numerals

[0034] 1. Support; 2. Multi-layer heat preservation heating blanket; 3. Temperature controller; 31. Ceramic heating sheet; 32. Temperature sensor; 4. Quartz wool; 5. Crack; 6. Foaming agent injection hole;

[0035] 11. Cold storage; 12. Thermal insulation wall; 13. Gap; 14. Cement; 15. Wooden pile foundation; 16. Cold leakage gap; 17. Loading / unloading area; 18. Soil layer. Detailed implementation manners

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0038] Embodiment

[0039] As Figure 2-3 shown, the present invention provides a multi-combination leak repair system based on cold storage cold leakage, including a support 1, a multi-layer heat preservation heating blanket 2, a temperature controller 3, and quartz wool 4. The support 1 is placed at the crack 5, the multi-layer heat preservation heating blanket 2 is fixed above the support 1, the temperature controller is arranged inside the crack 5, and the quartz wool 4 is arranged at the connection between the crack and both sides of the support 1.

[0040] The structure of the support 1 is as Figure 4 shown. The support 1 is welded by cylindrical iron or angle iron. For the case of a larger gap, the quartz wool 4 is arranged at the connection between the gap and both sides of the support 1. Actually, the quartz wool 4 is arranged at the boundary between the area to be treated of the gap and other areas, that is, both sides of the whole device, so as to provide heat preservation and insulation. Through the arrangement of the quartz wool 4, multiple leak repair treatments in sub-regions can be realized.

[0041] The multi-layer heat-insulating heating blanket 2 includes an innermost layer, a middle layer, and an outermost layer. The innermost layer is a heating resistance wire blanket: made of materials with high temperature resistance and good insulation properties, such as silicone-coated resistance wires. The resistance wires are evenly distributed to ensure uniform heating and include a temperature control switch and an overheat protection device. The middle layer is heat-insulating cotton: using ceramic fiber cotton or fiberglass cotton, with a thickness of about 2 - 3 cm, and the two sides are sealed to increase structural stability. The outermost layer is a protective material: a durable and high-temperature-resistant material, such as silicone-coated fabric or aluminum foil composite material, with a smooth surface for easy cleaning and having a waterproof function. The multi-layer heat-insulating heating blanket 2 is fixed to the bracket 1 by sewing or using cable ties and drilling holes, without the need to drill holes in the wall or perform other destructive operations for fixation.

[0042] The foaming agent injection holes 6 are arranged on the entire surface of the multi-layer heat-insulating heating blanket 2 and are evenly arranged according to the length and distribution of the crack 5. The distance between the holes is about 10 - 20 cm. Ensure that each injection hole can cover different positions of the crack 5 to facilitate precise injection of the foaming agent. The diameter of each foaming agent injection hole 6 is about 1 - 2 cm, which is large enough to accommodate a standard foaming agent nozzle.

[0043] An adjustable sealing ring is arranged around the foaming agent injection hole 6 to ensure sealing when not in use. The sealing ring is made of a flexible heat-resistant material, such as silicone or rubber, which can maintain elasticity and sealing performance at high temperatures. The sealing ring is embedded around the injection hole and is adjustable. The tightness of the sealing ring can be adjusted by rotation or extrusion to ensure sealing can be formed after the foaming agent nozzle is inserted.

[0044] The thermostat includes a ceramic heating sheet 31 and a temperature sensor 32. The ceramic heating sheet 31 is made of a high-performance ceramic material, with high temperature resistance and good thermal conductivity, and is directly inserted into the crack 5 to provide fixed-point heating. To adapt to the complexity of the crack 5, multiple sets of ceramic heating sheets 31 with different specifications, sizes, and shapes are designed according to common cracks, such as circular, rectangular sheet-shaped, and long strip-shaped. These ceramic heating sheets 31 can be flexibly configured with one or more sheets according to different situations of the crack 5 to ensure efficient heating effect. The temperature sensor 32 monitors the temperature inside the crack 5 in real time to ensure that the temperature is controlled at the target temperature. It has a miniaturized design for easy insertion into the crack 5. The temperature sensor 32 is a thermocouple.

[0045] The overall device is set in different specifications of frames, such as 0.3 m long, 0.5 m long, 1 m long, 1.5 m long, etc., and can be selected according to the actual size and length of the crack 5. The specifications and quantities of the ceramic heating sheets 31 can also be adjusted accordingly. For a long crack 5 of more than ten meters, it can be filled in sections multiple times.

[0046] The present invention also provides a usage method of a multi-combination leak repair system based on cold storage cold leakage, and the specific steps are as follows:

[0047] (1) Clean the crack 5 and its surrounding area to ensure there is no dust and debris.

[0048] (2) Prepare all equipment and materials, including foaming agent, ceramic heating sheet 31, temperature sensor 32 and protective equipment.

[0049] (3) Install the heating equipment

[0050] Place the ceramic heating sheet 31 and temperature sensor 32 at appropriate positions inside the crack 5, ensuring close contact with the crack. When dealing with segmented treatment, to ensure the heat preservation efficiency, fill the gaps at both sides of the whole device with quartz wool.

[0051] (4) Fix the heating equipment

[0052] Place the bracket 1 at the position of the crack 5, and rely on the weight of the bracket 1 to keep the device close to the wall surface. If the position of the bracket 1 is unstable, it can be fixed with the help of external heavy objects. Start the heating resistance wire blanket and ceramic heating sheet 31 to start heating. Monitor the temperature in real time through the temperature sensor 32 to ensure that the temperature rises to about 2 - 5 °C.

[0053] (5) Remove the heating sheet and sensor

[0054] After the temperature inside the crack rises to the target temperature, prepare for the injection of the foaming agent. To prevent the foaming agent from sealing the ceramic heating sheet 31 and temperature sensor 32 in the crack, move the ceramic heating sheet 31 and temperature sensor 32 to an area far from the crack.

[0055] (6) Inject the foaming agent

[0056] Spray or inject the foaming agent into the heated crack 5 through the injection holes on the multi-layer heat preservation heating blanket, and the foaming agent will quickly expand to fill the crack 5. Keep the multi-layer heat preservation heating blanket on to maintain the temperature in the foaming area at about 0 °C; the heating ceramic sheet can be selectively turned on or off according to actual needs until the foaming is completed.

[0057] (7) Trim and protect

[0058] After the foaming agent is completely cured, remove the multi-layer heat preservation heating blanket; use a knife to trim the excess foaming agent to make the surface flat. Coat a layer of waterproof coating or heat preservation coating on the surface of the foaming agent to enhance the heat preservation effect and waterproof performance.

[0059] Therefore, the present invention adopts the above-mentioned multi-combination leak repair system based on cold storage cold leakage, and effectively repairs the crack without shutting down the cold storage. By combining the multi-layer heat preservation heating blanket and the ceramic heating sheet, local heating is provided, so that the foaming agent can still effectively expand and cure in a low-temperature environment.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions of the present invention or make equivalent replacements, and these modifications or equivalent replacements do not enable the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A multi-combination leak repair system based on cold storage leakage, characterized in that: It includes a bracket, a multi-layer thermal insulation heating blanket, a thermostat and quartz wool. The bracket is placed at the crack, the multi-layer thermal insulation heating blanket is fixed above the bracket, the thermostat is arranged inside the crack, and the quartz wool is arranged at the connection between the crack and the bracket; The multi-layer thermal insulation heating blanket includes an innermost layer, a middle layer and an outermost layer. The innermost layer is a heating resistance wire blanket, the middle layer is heat insulation cotton, and the outermost layer is a protective material; The thermostat includes a ceramic heating sheet and a temperature sensor, and both the ceramic heating sheet and the temperature sensor are arranged inside the crack.

2. The multi-combination leak repair system based on cold storage cold leakage according to claim 1, wherein: The bracket is welded by cylindrical iron or angle iron.

3. The multi-combination leak repair system based on cold storage cold leakage according to claim 1, wherein: The multi-layer thermal insulation heating blanket is fixed on the bracket by sewing or fixing with a cable tie through drilling.

4. The multi-combination leak repair system based on cold storage cold leakage according to claim 1, wherein: Foaming agent injection holes are evenly arranged on the surface of the multi-layer thermal insulation heating blanket.

5. The multi-combination leak repair system based on cold storage leakage according to claim 4, characterized in that: An adjustable sealing ring is arranged around the foaming agent injection hole.

6. A method for using a multi-combination leak repair system based on cold storage cold leakage according to any one of claims 1-5, characterized in that, It includes the following steps: (1) Clean the crack and its surrounding area to ensure there is no dust and debris; (2) Prepare all equipment and materials, including foaming agent, ceramic heating sheet, temperature sensor and protective equipment; (3) Install the heating equipment: Place the ceramic heating sheet and the temperature sensor at appropriate positions inside the crack to ensure close contact with the crack; When dealing with segmented parts, fill the crack edges on both sides of the whole device with quartz wool; (4) Fix the heating equipment: Place the bracket at the crack, and rely on the weight of the bracket to press the device tightly against the wall surface; When the position of the bracket is unstable, fix it with an external heavy object, start the multi-layer thermal insulation heating blanket and the ceramic heating sheet, and start heating; Monitor the temperature in real time through the temperature sensor to ensure that the temperature rises to 2 - 5 °C; (5) Remove the heating sheet and the sensor: After the temperature inside the crack rises to the target temperature, prepare for the injection of the foaming agent, and move the ceramic heating sheet and the temperature sensor to an area far away from the crack; (6) Inject the foaming agent: Through the foaming agent injection holes on the multi-layer thermal insulation heating blanket, spray or inject the foaming agent into the heated crack, and the foaming agent expands rapidly to fill the crack; Keep the multi-layer thermal insulation heating blanket on to maintain the temperature of the foaming area at about 0 °C; The heating ceramic sheet is selectively turned on or off according to actual needs until the foaming is completed; (7) Trim and protect: After the foaming agent is completely cured, remove the multi-layer thermal insulation heating blanket; Use a knife to trim the excess foaming agent; Apply a layer of waterproof coating or thermal insulation coating on the surface of the foaming agent.

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