Polyurethane foam spraying device

Abstract

The utility model provides a polyurethane foam spraying device. The polyurethane foam spraying device comprises an A material storage box, a B material storage box, a cleaning fluid storage box, an electric control cabinet, an A material pump, a B material pump, an air pump, a diesel generator, a base and a mounting frame, the material A, the material B and the gas are respectively mixed through three pipelines, and the mixed foam is quickly sprayed to a leakage site; the foam generating speed and the covering effect can be improved, a more compact and uniform foam layer is formed, liquid leakage and diffusion are effectively prevented, and dissipation of volatile harmful gas is reduced.

Description

Technical Field

[0001] This utility model relates to the fields of chemical engineering and environmental protection, and in particular to a polyurethane foam spraying device. Background Technology

[0002] With industrial advancements, the use of liquid hazardous chemicals is becoming increasingly widespread. Leaks of liquid hazardous chemicals during transportation, storage, and use can cause severe pollution and damage to the environment and surrounding facilities. Traditional preventative measures often rely on physical means such as dikes and sandbags, but quickly and effectively controlling leaks and preventing their spread remains a challenge. Current technology has not yet provided a rapid, efficient, and automated device capable of timely controlling hazardous chemical leaks. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes a polyurethane foam spraying device, designed to rapidly construct a dam by spraying polyurethane foam to block leaking liquid and prevent its flow and spread.

[0004] A polyurethane foam spraying device includes: an A-material storage tank, a B-material storage tank, a cleaning fluid storage tank, an electrical control cabinet, an A-material pump, a B-material pump, an air pump, a diesel generator, a base, and a mounting frame. The mounting frame is mounted on the base, and the A-material storage tank, B-material storage tank, cleaning fluid storage tank, and electrical control cabinet are mounted on the mounting frame. The A-material pump, B-material pump, air pump, and diesel generator are mounted on the base. An A-material pipeline is connected to the A-material storage tank, and balls are sequentially arranged on the A-material pipeline. The system includes a valve, an A-material pump, and a check valve; a B-material storage tank is connected to a B-material pipeline, which is equipped with a ball valve, a B-material pump, and a check valve in sequence; a cleaning fluid storage tank is connected to the A-material pipeline and the B-material pipeline via a cleaning fluid pipeline, which is equipped with a cleaning fluid pump and a ball valve; the A-material pipeline and the B-material pipeline intersect to form a mixing pipeline, which is connected to an air pump and also to a foam gun; a diesel generator provides power to the electrical control cabinet, the A-material pump, the B-material pump, and the air pump.

[0005] Furthermore, the side walls of the material A storage tank, material B storage tank, and cleaning fluid storage tank are all equipped with a heat preservation system. The heat preservation system includes a heat preservation layer and a heating layer installed on the outer side wall of the tank from the outside to the inside. The side walls of the material A storage tank, material B storage tank, and cleaning fluid storage tank are also equipped with a temperature control system for controlling the heating temperature of the heating layer. The temperature control system is electrically connected to the diesel generator.

[0006] Furthermore, the heating layer is an electric heating strip or electric heating tube wrapped around the outer wall of the box.

[0007] Furthermore, the A material pipeline, B material pipeline, and cleaning fluid pipeline are all equipped with pipeline heating mechanisms, which are connected to the temperature control system.

[0008] Furthermore, the pipeline heat tracing mechanism includes electric heat tracing tape wrapped around each pipeline.

[0009] Furthermore, the lower surface of the base is equipped with rollers, and the base is also equipped with a pusher.

[0010] Furthermore, the rollers are omnidirectional rollers with brakes.

[0011] Advantages and beneficial effects of this utility model:

[0012] (1) High-efficiency gas-liquid mixing injection technology

[0013] This invention mixes material A, material B, and gas in three ways, and then rapidly sprays the mixed foam to the leak site using a foam gun. This improves the foam generation speed and coverage effect, forming a denser and more uniform foam layer, effectively preventing the spread of liquid leaks and reducing the emission of volatile harmful gases.

[0014] (2) Integrated cleaning system

[0015] This invention features a cleaning fluid storage tank, which automatically cleans the equipment's pipes and nozzles after use, preventing foam residue from clogging the system. This cleaning system extends the equipment's lifespan, reduces manual maintenance, and ensures the device remains clean and in good working order after each use.

[0016] (3) Design of diesel generator with independent power supply

[0017] To ensure the device can continue to operate normally in the event of an external power outage, this invention is equipped with a diesel generator to provide an independent power supply. This ensures that the device can continue to operate in emergency situations without being affected by external power, thus improving the reliability of the equipment. It is especially suitable for hazardous chemical storage areas or transportation routes far from power supply.

[0018] (4) Intelligent control system

[0019] This invention employs an electrical control cabinet, which can automatically adjust the operating status of the device based on real-time monitoring data, including the temperature control system for material A, material B, and the cleaning fluid, as well as the adjustment of the pipeline heating system. This automated control greatly reduces the complexity of manual operation, improves work efficiency and response speed, and ensures that the system can be quickly and accurately activated in the event of a hazardous chemical leak, minimizing the spread of the leak.

[0020] (5) Design of integrated thermal insulation and heat tracing system

[0021] This invention ensures the stability of all fluids in low-temperature environments by incorporating insulation systems into the storage tanks for materials A, B, and the cleaning fluid, and by designing pipeline heat tracing mechanisms on the pipes. Especially under low-temperature winter conditions or extreme weather, it effectively prevents the solidification or freezing of materials A, B, or the cleaning fluid, ensuring the stable operation of the device.

[0022] (6) Rapid deployment and flexible adaptation design

[0023] This device is designed for rapid deployment and, due to its modular construction, can flexibly adapt to emergency response to leaks of varying scales. It can be customized to different site environments (such as chemical plants, storage areas, etc.) to provide more targeted solutions. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0025] Figure 1 This is the polyurethane foam spraying device described in this utility model;

[0026] Figure 2 This refers to the foam injection pipeline of the polyurethane foam injection device described in this utility model.

[0027] Figure label:

[0028] 1. Material A storage tank; 2. Material B storage tank; 3. Cleaning fluid storage tank; 4. Electrical control cabinet; 5. Material A pump; 6. Material B pump; 7. Air pump; 8. Diesel generator; 9. Base; 10. Push handle; 11. Mounting bracket; 12. Roller; 13. Material A pipeline; 14. Material B pipeline; 15. Cleaning fluid pipeline; 16. Ball valve; 17. Check valve; 18. Mixing pipeline; 19. Foam gun. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0035] like Figure 1-2 As shown, a polyurethane foam spraying device includes: an A-material storage tank 1, a B-material storage tank 2, a cleaning fluid storage tank 3, an electrical control cabinet 4, an A-material pump 5, a B-material pump 6, an air pump 7, a diesel generator 8, a base 9, and a mounting frame 11. The mounting frame 11 is mounted on the base 9, and the A-material storage tank 1, B-material storage tank 2, cleaning fluid storage tank 3, and electrical control cabinet 4 are mounted on the mounting frame 11. The A-material pump 5, B-material pump 6, air pump 7, and diesel generator 8 are mounted on the base 9. An A-material pipeline 13 is connected to the A-material storage tank 1, and a ball valve 16, the A-material pump 5, and a check valve 17 are sequentially installed on the A-material pipeline 13. The B-material storage tank... The tank 2 is connected to a B material pipeline 14, which is equipped with a ball valve 16, a B material pump 6, and a check valve 17 in sequence. The cleaning fluid storage tank 3 is connected to the A material pipeline 13 and the B material pipeline 14 through the cleaning fluid pipeline 15. The cleaning fluid pipeline is connected between the ball valve and the A material pump, and between the ball valve and the B material pump. The cleaning fluid pipeline 15 is equipped with a cleaning fluid pump and a ball valve 16. The A material pipeline 13 and the B material pipeline 14 intersect to form a mixing pipeline 18. The air pump 7 is connected to the mixing pipeline 18, which is also connected to a foam gun 19. The diesel generator 8 provides power to the electrical control cabinet 4, the A material pump 5, the B material pump 6, and the air pump 7.

[0036] The mixing pipeline can also be connected to the cleaning fluid storage tank via the return pipeline, so that the cleaning fluid flows back to the cleaning fluid storage tank; if the viscosity of the liquid increases significantly, the cleaning fluid can be discharged directly and replaced.

[0037] For example, the side walls of the material A storage tank, material B storage tank, and cleaning fluid storage tank are all equipped with a thermal insulation system. The thermal insulation system includes an insulation layer and a heating layer arranged from the outside to the inside of the outer side wall of the tank. The side walls of the material A storage tank, material B storage tank, and cleaning fluid storage tank are also equipped with a temperature control system for controlling the heating temperature of the heating layer. The temperature control system is electrically connected to the diesel generator 8. The thermal insulation system is used to maintain a constant temperature for the stored liquids, preventing temperature changes from affecting the foaming effect.

[0038] The insulation layer uses high-efficiency, low-thermal-conductivity insulation material to wrap around the A material storage tank, B material storage tank and cleaning fluid storage tank, forming a complete thermal insulation layer to effectively isolate the influence of external temperature on A material, B material and cleaning fluid, and reduce heat loss.

[0039] Specifically, the heating layer consists of an electric heating strip or electric heating tube wrapped around the outer wall of the chamber. The temperature control system automatically adjusts the heating power of the heating device according to the actual temperatures of material A, material B, and the cleaning solution, ensuring that the temperature remains within the set storage range.

[0040] Specifically, the A material pipeline 13, the B material pipeline 14, and the cleaning fluid pipeline 15 are all equipped with pipeline heating mechanisms, which are connected to the temperature control system.

[0041] More specifically, pipeline heat tracing systems include electric heat tracing tapes wrapped around the various pipelines.

[0042] When the temperature of the liquid inside the pipe is lower than the preset value, the electric heating tape will automatically activate its heating function. Heat is transferred to the pipe via the heating tape to ensure the liquid or gas remains at the ideal flow temperature. If the temperature is too high, the system automatically adjusts its output power to prevent overheating. The temperature control system and sensors ensure precise control throughout the process, achieving optimal heating results.

[0043] For example, the lower surface of the base 9 is provided with a roller 12, and the base 9 is also provided with a pusher 10.

[0044] Specifically, the roller 12 is a universal roller 12 with a brake. The roller can easily move the device to the required position, and the handle can easily push the device.

[0045] Specifically, the A-material storage box is used to store the A-material required for polyurethane foaming, which is usually an isocyanate component. The storage box needs to have a suitable storage environment to ensure the stability of the A-material at a reasonable temperature.

[0046] The B-component storage box is used to store the B-component required for polyurethane foaming, which is usually a polyol component. The storage box also needs to be equipped with corresponding insulation and temperature control devices to maintain the stability of the B-component.

[0047] The cleaning fluid storage tank is used to store cleaning fluid for cleaning pipes, nozzles, and other components after use, preventing blockages and equipment damage.

[0048] The electrical control cabinet is used to control the operation of the entire unit, including the A-material insulation system, the B-material insulation system, the cleaning fluid insulation system, and the pipeline heat tracing mechanism. The cabinet contains an intelligent control system that can automatically adjust the system's operating status and perform functions such as temperature control and pressure regulation as needed.

[0049] When a liquid hazardous chemical leaks, the operator activates the device, and the system automatically adjusts the operating status of each component. Components A and B are delivered to the mixing pipeline via pumps A and B, and mixed with gas supplied by the air pump to form polyurethane foam. Under the action of the air pump, the mixture is sprayed onto the leak site through the nozzle of the foam gun, quickly forming a solid dam to contain the leaking liquid. The protective layer formed by the polyurethane foam effectively limits the flow and spread of the leaked liquid, reducing the extent of fire spread.

[0050] Working principle:

[0051] Normal spraying: Start the air pump. After the airflow stabilizes or the start-up time is greater than 2 minutes, start the A material pump and the B material pump at the same time. The A material and the B material are mixed with the air separately, and then they are combined and sprayed out.

[0052] Cleaning: Close the valves of material A storage tank and material B storage tank, start the cleaning fluid pump, and pump the cleaning fluid into material A pipeline and material B pipeline. After cleaning, the liquid flows back to the cleaning fluid storage tank. If the viscosity of the liquid increases significantly, drain the cleaning fluid and replace it.

[0053] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A polyurethane foam spraying apparatus characterized by, The application relates to a cleaning device for a foam gun. The installation frame is arranged on the base, the A-material storage tank, the B-material storage tank, the cleaning liquid storage tank and the electric control cabinet are arranged on the installation frame, and the A-material pump, the B-material pump, the air pump and the diesel generator are arranged on the base; the A-material storage tank is connected with an A-material pipeline, the A-material pipeline is sequentially provided with a ball valve, the A-material pump and a check valve; the B-material storage tank is connected with a B-material pipeline, the B-material pipeline is sequentially provided with a ball valve, the B-material pump and a check valve; the cleaning liquid storage tank is connected with the A-material pipeline and the B-material pipeline through a cleaning liquid pipeline, the cleaning liquid pipeline is provided with a cleaning liquid pump and a ball valve; the A-material pipeline and the B-material pipeline are connected to form a mixing pipeline, the air pump is connected with the mixing pipeline, and the mixing pipeline is further connected with the foam gun; and the diesel generator provides power supply for the electric control cabinet, the A-material pump, the B-material pump and the air pump. The side walls of the A-material storage tank, the B-material storage tank and the cleaning liquid storage tank are all provided with a heat preservation system, the heat preservation system comprises a heat preservation layer and a heating layer which are arranged from outside to inside on the outer side wall of the tank body; the side walls of the A-material storage tank, the B-material storage tank and the cleaning liquid storage tank are further provided with a temperature control system for controlling the heating temperature of the heating layer, and the temperature control system is electrically connected with the diesel generator.

2. The polyurethane foam injection device of claim 1, wherein, The heating layer is an electric heating belt or an electric heating pipe which is wound on the outer side wall of the tank body.

3. The polyurethane foam injection device of claim 2, wherein, The A-material pipeline, the B-material pipeline and the cleaning liquid pipeline are all provided with a pipeline heat tracing mechanism, and the pipeline heat tracing mechanism is connected with the temperature control system.

4. The polyurethane foam injection device of claim 2, wherein, The pipeline heat tracing mechanism comprises an electric heat tracing belt which is wound on each pipeline.

5. The polyurethane foam injection device of claim 4, wherein, The lower surface of the base is provided with a universal roller with a brake.

6. The polyurethane foam injection device of claim 1, wherein, The universal roller with a brake is used.

7. The polyurethane foam injection device of claim 6, wherein, ​

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