Movable steam blowing device for small pipeline installation

Abstract

The utility model relates to the technical field of pipeline construction, in particular to a movable steam blowing device for installing a small pipeline, which comprises a movable trolley and a protective frame, a steam generator and a water tank are arranged on the movable trolley, a water supply pump is arranged on the water tank, a surge tank is arranged on the steam generator, and the surge tank is connected with the protective frame. A safety valve and a barometer are arranged on the surge tank, and a purging valve is arranged on one side of the surge tank; the steam generator comprises a heating cavity and a boiling cavity, the interior of the heating cavity is in an inverted concave shape, a preheating device is arranged at the bottom of the heating cavity, the boiling cavity is located on the upper side of the heating cavity, the boiling cavity and the heating cavity are communicated through a pipeline, and a temperature control assembly is arranged in the boiling cavity; the steam blowing small pipeline is adopted, the steam generator is provided with the heating cavity and the boiling cavity, water heating is separated, efficiency is improved, meanwhile, the pressure stabilizing tank is arranged, steam pressure fluctuation is reduced, pressure storage and pulse blowing can be achieved, and functionality and practicability of equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of pipeline construction technology, and in particular to a mobile steam purging device for small pipeline installation. Background Technology

[0002] In the later stages of process piping construction, pipeline purging is frequently involved, and it is an important step before the commissioning of a unit project. Depending on the purpose of the project, common purging operations include compressed air purging, nitrogen purging, and high-temperature steam purging. Currently, purging operations all require the erection of temporary purging facilities and connection of pipelines. After purging, the temporary facilities are dismantled, making the purging process relatively complicated. Compressed air purging has high equipment costs and limited pressure. If steam purging is used, the pressure is uncontrollable, and condensate remains in the pipeline after steam cooling, limiting the application scenarios of purging. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a mobile steam purging device for small pipeline installations.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A mobile steam purging device for small pipeline installation includes a mobile trolley and a protective frame. The mobile trolley is equipped with a steam generator and a water tank. The water tank is equipped with a water supply pump. The steam generator is equipped with a pressure stabilizing tank. The pressure stabilizing tank is equipped with a safety valve and a pressure gauge. A purging valve is located on one side of the pressure stabilizing tank. The steam generator includes a heating chamber and a boiling chamber. The interior of the heating chamber is shaped like an inverted U. The bottom of the heating chamber is equipped with a preheating device. The boiling chamber is located above the heating chamber and is connected to it by a pipe. A temperature control component is installed in the boiling chamber.

[0006] Preferably, a water supply pipe is provided on one side of the heating chamber, a one-way valve is provided on the water supply pipe, the water supply pipe is connected to a water supply pump, and a water inlet is provided on one side of the water tank.

[0007] Preferably, the water inlet and water outlet inside the heating chamber are respectively located on both sides of the preheating device, and the height of the water inlet is lower than that of the water outlet.

[0008] Preferably, the temperature control component includes a mounting panel, a heating element, and a temperature sensor, with the heating element extending to the middle of the inner side of the boiling chamber.

[0009] Preferably, the pressure stabilizing tank has a heat insulation layer on its side wall, and a steam control valve is provided between the boiling chamber and the pressure stabilizing tank. The connection between the steam control valve and the pressure stabilizing tank is located on one side of the bottom of the pressure stabilizing tank.

[0010] Preferably, the upper side of the protective frame is provided with a cover plate, and the cover plate, the mobile trolley and the protective frame form a miscellaneous box. The miscellaneous box is provided with an air storage tank and a workpiece box. The air storage tank is connected to the pressure stabilizing tank, and a regulating valve is provided between the air storage tank and the pressure stabilizing tank.

[0011] The beneficial effects of this utility model are as follows:

[0012] Compared with the prior art, this utility model adopts a small steam purging pipe, and the steam generator is equipped with a heating chamber and a boiling chamber to heat the water separately, thereby improving efficiency. At the same time, a pressure stabilizing tank is set up to reduce steam pressure fluctuations and can also achieve pressure storage and pulse purging, thereby improving the functionality and practicality of the equipment. In addition, an air storage tank is provided to store some compressed air or nitrogen, which, together with steam purging, increases the application range of the equipment and makes it more convenient to use. Attached Figure Description

[0013] Figure 1 This is a first-view three-dimensional structural diagram of a mobile steam purging device for small pipeline installation proposed in this utility model.

[0014] Figure 2 This is a second-view three-dimensional structural diagram of a mobile steam purging device for small pipeline installation proposed in this utility model.

[0015] Figure 3 This is a partial cross-sectional view of the right side of a mobile steam purging device for small pipeline installation proposed in this utility model.

[0016] In the diagram: 1. Cover plate; 2. Pressure stabilizing tank; 21. Steam control valve; 22. Safety valve; 23. Pressure gauge; 24. Purge valve; 3. Steam generator; 31. Heating chamber; 32. Preheating device; 33. Temperature control component; 34. Boiling chamber; 4. Water tank; 41. Water supply pump; 42. Water supply pipe; 5. Mobile trolley; 6. Protective frame; 7. Gas storage tank; 71. Regulating valve. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Reference Figure 1-3A mobile steam purging device for small pipeline installation includes a mobile trolley 5 and a protective frame 6. The upper side of the protective frame 6 is provided with a cover plate 1. The cover plate 1, the mobile trolley 5 and the protective frame 6 form a miscellaneous box. The miscellaneous box is provided with a gas storage tank 7 and a workpiece box. The workpiece box is used to store the workpieces and tools required for assembling and connecting the equipment.

[0019] The mobile trolley 5 is equipped with a steam generator 3 and a water tank 4. The steam generator 3 is equipped with a heat dissipation shell on the outside to prevent personnel from accidentally touching it and causing scalding. The water tank 4 is equipped with a water supply pump 41. The water supply pump 41 can adjust the flow rate to improve the stability and operability of the water supply. The water tank 4 is equipped with a water inlet on one side. The water tank 4 relieves the water supply pressure and can achieve a short-term stable water supply in environments with poor water supply conditions. The water inlet makes it easy to quickly replenish clean water.

[0020] The steam generator 3 includes a heating chamber 31 and a boiling chamber 34, heating water twice to avoid direct heating of a large body of water, which would prevent the hot water from being used in time and causing heat loss. This improves the reliability of temperature control and ensures heating efficiency. Because the water is added continuously, with hot water flowing out and cold water flowing in, the interior of the heating chamber 31 is shaped like an inverted U. The bottom of the heating chamber 31 is equipped with a preheating device 32, which is located on the bottom protrusion inside the heating chamber 31. The top and four sides of the preheating device 32 are heating surfaces. The cavity between the heating chamber 31 and the preheating device 32 is arranged in a U-shape. When the water flows, it passes through the preheating device 32 for preliminary heating. The water inlet and outlet inside the heating chamber 31 are respectively located on both sides of the preheating device 32. The height of the water inlet is lower than that of the water outlet to ensure that the water flowing in through the water inlet can pass evenly through the preheating device 32, thinning the water body and improving heating efficiency. This avoids the water directly entering the outlet from the top layer, ensuring the water heating time and achieving rapid steam generation response.

[0021] A water supply pipe 42 is provided on one side of the heating chamber 31. The water supply pipe 42 is connected to the water supply pump 41. A one-way valve is provided on the water supply pipe 42 to prevent water backflow due to pressure.

[0022] The boiling chamber 34 is located above the heating chamber 31 and is connected to it by a pipe. Hot water floats up and enters the boiling chamber 34. The boiling chamber 34 is equipped with a temperature control component 33, which includes a mounting panel, a heating tube and a temperature sensor. The heating tube extends to the middle of the inner side of the boiling chamber 34. The hot water is heated to boiling through the heating tube to quickly generate steam.

[0023] The steam generator 3 is equipped with a pressure stabilizing tank 2, and the generated steam is stored in the pressure stabilizing tank 2 for pressure storage to ensure stable purging. The side wall of the pressure stabilizing tank 2 is equipped with a heat insulation layer to prevent heat loss. A steam control valve 21 is provided between the boiling chamber 34 and the pressure stabilizing tank 2. The connection between the steam control valve 21 and the pressure stabilizing tank 2 is located on one side of the bottom of the pressure stabilizing tank 2. When the equipment stops working, the residual steam condensate in the pressure stabilizing tank 2 flows back into the boiling chamber 34 through the steam control valve 21.

[0024] The pressure stabilizing tank 2 is equipped with a safety valve 22 and a pressure gauge 23. When the pressure inside the pressure stabilizing tank 2 is too high, the safety valve 22 will automatically open to discharge steam and protect the equipment components. The pressure stabilizing tank 2 is equipped with a purge valve 24 on one side, which is used to connect the pipeline and carry out purge work. The purge valve 24 can be a solenoid valve to realize intermittent gas supply and pressure storage for purging the pipeline.

[0025] The gas storage tank 7 is connected to the pressure stabilizing tank 2. A regulating valve 71 is provided between the gas storage tank 7 and the pressure stabilizing tank 2. The gas storage tank 7 stores compressed air or nitrogen. In environments where conditions are inconvenient, it is used to assist steam purging. In addition, after the steam purging is completed, air or nitrogen can be blown in to prevent steam from cooling and remaining in the pipeline, causing water accumulation.

[0026] In this embodiment, the operator moves the equipment to one end of the small pipe, connects the purge valve 24 to the small pipe, and the equipment starts to work. The water supply pump 41 draws clean water from the water tank 4 and sends it into the heating chamber 31. After initial heating by the preheating device 32, the heating chamber 31 is filled with water. Cold water is added from the bottom of the heating chamber 31, and hot water floats into the boiling chamber 34. The heating tube further heats the water until it boils and generates a large amount of steam. The purge valve 24 is closed, and the steam control valve 21 is opened. The steam in the pressure tank 2 is pressurized. After reaching the pressure value, the purge valve 24 is opened to start purging the pipeline. The purge valve 24 can be closed and then opened again, using intermittent pulse purging.

[0027] Alternatively, after the steam generation stabilizes, continuous purging can be performed. After purging is completed, the heating tube and preheating device 32 can be shut off. Once the steam pressure decreases, the steam control valve 21 can be closed, and the regulating valve 71 can be opened to introduce compressed air or nitrogen into the pipeline for drying and cooling.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0030] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

Claims

1. A mobile steam purging device for small pipeline installation, comprising a mobile trolley (5) and a protective frame (6), characterized in that, The mobile trolley (5) is equipped with a steam generator (3) and a water tank (4). The water tank (4) is equipped with a water supply pump (41). The steam generator (3) is equipped with a pressure stabilizing tank (2). The pressure stabilizing tank (2) is equipped with a safety valve (22) and a pressure gauge (23). The pressure stabilizing tank (2) is equipped with a purge valve (24) on one side. The steam generator (3) includes a heating chamber (31) and a boiling chamber (34). The heating chamber (31) has an inverted U-shape inside. A preheating device (32) is provided at the bottom of the heating chamber (31). The boiling chamber (34) is located on the upper side of the heating chamber (31) and is connected to it by a pipe. A temperature control component (33) is provided inside the boiling chamber (34).

2. A mobile steam purging device for small pipeline installation according to claim 1, characterized in that, A water supply pipe (42) is provided on one side of the heating chamber (31), and a one-way valve is provided on the water supply pipe (42). The water supply pipe (42) is connected to the water supply pump (41), and a water inlet is provided on one side of the water tank (4).

3. A mobile steam purging device for small pipeline installation according to claim 2, characterized in that, The water inlet and outlet of the heating chamber (31) are respectively located on both sides of the preheating device (32), and the height of the water inlet is lower than that of the water outlet.

4. A mobile steam purging device for small pipeline installation according to claim 1, characterized in that, The temperature control component (33) includes a mounting panel, a heating tube and a temperature sensor, wherein the heating tube extends to the middle of the inner side of the boiling chamber (34).

5. A mobile steam purging device for small pipeline installation according to claim 4, characterized in that, The pressure stabilizing tank (2) has a heat insulation layer on its side wall. A steam control valve (21) is provided between the boiling chamber (34) and the pressure stabilizing tank (2). The connection between the steam control valve (21) and the pressure stabilizing tank (2) is located on one side of the bottom of the pressure stabilizing tank (2).

6. A mobile steam purging device for small pipeline installation according to claim 5, characterized in that, The protective frame (6) is provided with a cover plate (1) on the upper side. The cover plate (1), the mobile trolley (5) and the protective frame (6) form a miscellaneous box. The miscellaneous box is provided with an air storage tank (7) and a workpiece box. The air storage tank (7) is connected to the pressure stabilizing tank (2). A regulating valve (71) is provided between the air storage tank (7) and the pressure stabilizing tank (2).

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