Sand blasting equipment

Abstract

The utility model provides sand blasting equipment which comprises a high-pressure gas source, a gas distribution device and at least two sand blasting guns, and the high-pressure gas source is provided with a gas source gas outlet and is used for providing high-pressure gas. The gas distribution device is provided with a containing cavity, a gas inlet and at least two gas outlets, the gas inlet and the at least two gas outlets are all communicated with the containing cavity, meanwhile, the gas inlet is communicated with the gas outlet of the gas source so that high-pressure gas can enter the containing cavity through the gas inlet, ball valves are arranged at the gas outlets, and on-off of the gas outlets can be controlled through the ball valves. The at least two sand blasting guns are respectively connected with the air outlets, so that the high-pressure air source can simultaneously supply air to the at least two sand blasting guns through the at least two air outlets, the energy utilization rate of the sand blasting equipment is further improved, namely, the operation requirements can be met through the same sand blasting equipment under the condition of multi-point sand blasting operation; and the purchase and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sandblasting device structures, in particular to a sandblasting device. Background Art

[0002] Sandblasting is a common surface treatment method used in mechanical production. Specifically, it uses compressed air as a power source to form a high-speed jet beam that sprays material (copper ore sand, quartz sand, corundum, iron sand, or sea sand) onto the surface of the workpiece being treated, changing its appearance or shape. As a common surface treatment method for corrosion protection substrates, sandblasting is widely used and frequently employed. The utilization rate of sandblasting equipment directly affects the cost control of the project's corrosion protection operations.

[0003] Currently, the most common sandblasting method involves using an air compressor to generate compressed air, which is then introduced into a gas tank. Once the tank pressure stabilizes, the air is passed through a cold dryer and connected to a rubber air hose, allowing the substrate surface to be sandblasted using a spray gun. However, for multi-point sandblasting, multiple sets of sandblasting equipment are required to meet the demand. This results in high procurement and maintenance costs, high energy and labor consumption, and severely underutilized sandblasting equipment. Utility Model Content

[0004] The following is a brief summary of one or more aspects to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all conceivable aspects and is neither intended to identify key or critical elements of all aspects nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that will be provided later.

[0005] The purpose of the utility model is to provide a sandblasting device, which can improve the technical problems in the prior art of high energy and manpower consumption and insufficient utilization rate of the sandblasting equipment during multi-point sandblasting operations.

[0006] The embodiment of the present invention can be realized by the following formula:

[0007] A sandblasting device, comprising:

[0008] A high-pressure gas source having a gas outlet;

[0009] An air separator, the air separator comprising a receiving chamber, an air inlet, and at least two air outlets, the air inlet and the at least two air outlets being in communication with the receiving chamber, the air inlet being in communication with the air source outlet; and a ball valve being provided at each of the at least two air outlets; and

[0010] At least two sandblasting guns are respectively connected to the air outlet, and the high-pressure air source is used to supply air to the at least two sandblasting guns at the same time.

[0011] Optionally, the at least two air outlets include a first air outlet and a second air outlet, and the first air outlet and the second air outlet have different opening sizes.

[0012] Optionally, the number of the first air outlets is at least two; and / or,

[0013] The number of the second air outlets is at least two.

[0014] Optionally, the gas distribution device includes a main pipe and end plates welded and fixed on both sides of the main pipe, the main pipe and the end plates define the accommodating cavity; the air inlet and the at least two air outlets are both provided on the main pipe.

[0015] Optionally, the end plate is embedded in the main pipe, and the outer periphery of the end plate is fixed to the inner pipe wall of the main pipe by welding.

[0016] Optionally, the air inlet and the at least two air outlets are arranged sequentially along the axial direction of the main pipe.

[0017] Optionally, the opening size of the air inlet is larger than the opening size of the air outlet.

[0018] Optionally, the gas separation device further includes a detection port connected to the accommodating cavity, and the detection port and the air inlet are arranged at both ends of the gas separation device; a pressure gauge is provided at the detection port, and the pressure gauge is used to detect the pressure in the accommodating cavity.

[0019] Optionally, the gas separation device further includes a drain outlet communicated with the accommodating chamber, wherein the drain outlet is located at the lower side of the gas separation device and is used to discharge water vapor in the accommodating chamber.

[0020] Optionally, the sandblasting equipment further comprises a supporting frame, and the air separator is mounted on the supporting frame so as to be supported by the supporting frame.

[0021] The beneficial effects of the sandblasting equipment provided by the embodiments of the present invention include:

[0022] An embodiment of the present invention provides a sandblasting device, which includes a high-pressure gas source, a gas distribution device, and at least two sandblasting guns. The high-pressure gas source has a gas source outlet, and the high-pressure gas source is used to provide high-pressure gas. The gas distribution device has a accommodating chamber, an air inlet, and at least two air outlets. The air inlet and the at least two air outlets are both connected to the accommodating chamber, and the air inlet is connected to the gas source outlet so that high-pressure gas enters the accommodating chamber through the air inlet. A ball valve is provided at the air outlet, and the opening and closing of the air outlet can be controlled by the ball valve. At least two sandblasting guns are respectively connected to the air outlet, so that the high-pressure gas source can supply gas to at least two sandblasting guns at the same time through at least two air outlets, thereby helping to improve the energy utilization rate of the sandblasting equipment. That is, in the case of multi-point sandblasting operations, the same sandblasting equipment can also meet the operation requirements, reducing procurement and maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above features and advantages of the present invention can be better understood after reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings. In the drawings, the components are not necessarily drawn to scale, and components with similar related properties or characteristics may have the same or similar reference numerals.

[0024] Figure 1 Shown is a structural block diagram of a sandblasting device provided according to one aspect of the present utility model;

[0025] Figure 2 A schematic structural diagram of an air separation device in a sandblasting device according to one aspect of the present invention is shown;

[0026] Figure 3 FIG2 shows a schematic cross-sectional structure diagram of an air separation device in a sandblasting device provided according to one aspect of the present utility model;

[0027] Figure 4 Shown Figure 3 Schematic diagram of the local structure at A in the middle;

[0028] Figure 5 A schematic structural diagram of a support frame supporting an air distribution device in a sandblasting device provided according to one aspect of the present invention is shown.

[0029] Reference numerals:

[0030] 100-sandblasting equipment; 110-high-pressure gas source; 111-air compressor; 112-gas storage tank; 113-gas source outlet; 120-gas distribution device; 121-main pipe; 122-end plate; 123-air inlet; 124-first air outlet; 125-second air outlet; 126-detection port; 127-drain outlet; 128-accommodating chamber; 130-sandblasting gun; 140-support frame; 141-support leg; 142-limiting frame. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Note that the various aspects described below with reference to the accompanying drawings and specific embodiments are merely exemplary and should not be construed as limiting the scope of protection of the present invention.

[0032] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inner", "outer", "vertical" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the utility model is usually placed when in use, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] At the same time, it should be noted that the terms "first", "second", etc. are only used to distinguish and describe, and cannot be understood as indicating or implying relative importance.

[0034] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connection, integral connection, or detachable connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0035] Figure 1 This is a structural block diagram of the sandblasting equipment 100 provided in this embodiment. Figure 2 This is a schematic diagram of the structure of the gas separation device 120 in the sandblasting equipment 100 provided in this embodiment. Figure 1 and Figure 2 This embodiment provides a sandblasting device 100, which includes a high-pressure gas source 110, an air separator 120 and at least two sandblasting guns 130. The air inlet 123 of the air separator 120 is connected to the high-pressure gas source 110, and the air outlet of the air separator 120 is connected to the sandblasting gun 130. By arranging the air separator 120 between the high-pressure gas source 110 and the sandblasting gun 130, the same high-pressure gas source 110 can simultaneously provide high-pressure gas to multiple sandblasting guns 130, thereby meeting the needs of multi-point sandblasting operations, helping to improve energy utilization and reduce procurement and maintenance costs.

[0036] The sandblasting device 100 provided in this embodiment is further described below:

[0037] Figure 3The cross-sectional structure diagram of the gas separation device 120 in the sandblasting equipment 100 provided in this embodiment is shown. Figure 1-Figure 3 In this embodiment, the gas distribution device 120 is provided with an air inlet 123 and at least two air outlets. The air inlet 123 is connected to the air outlet 113 of the high-pressure gas source 110. In this way, the high-pressure gas provided by the high-pressure gas source 110 enters the air inlet 123 through the air outlet 113 and then enters the accommodating chamber 128. The high-pressure gas entering the accommodating chamber 128 can flow to the sandblasting gun 130 through the air outlet. The high-pressure gas source 110 may include an air compressor 111 and an air storage tank 112. The high-pressure gas generated by the air compressor 111 enters the air storage tank 112 for storage and pressure stability. In this case, the air outlet 113 of the high-pressure gas source 110 is the outlet of the air storage tank 112.

[0038] Optionally, the gas distribution device 120 is a cylindrical structure, which includes a main pipe 121 and end plates 122 welded and fixed on both sides of the main pipe 121. The main pipe 121 and the end plates 122 define a accommodating chamber 128. The air inlet 123 and the air outlet are both opened on the main pipe 121. A ball valve is provided at the air inlet 123, through which the connection and disconnection of the air inlet 123 and the air source outlet 113 can be controlled. Specifically, the ball valve at the air inlet 123 is connected to a spring-loaded safety valve A27W-16T DN40 and a pressure-stabilizing and reducing valve Y110DN40, and air pressure control can be performed through the pressure-stabilizing and reducing valve.

[0039] Furthermore, a ball valve is also provided at the air outlet to control its on / off function. When the air outlet is connected to the sandblasting gun 130 and the sandblasting gun 130 is required for sandblasting, the ball valve can be used to open the air outlet. When the air outlet is not connected to the sandblasting gun 130, or when the sandblasting gun 130 is not required for sandblasting, the sandblasting gun 130 can close the air outlet. The ball valve can also be used to adjust the air outlet pressure to meet the needs of the sandblasting gun 130. Specifically, the ball valve at the air outlet is a Q41F-16C / Q11F-16T ball valve.

[0040] Specifically, the main tube 121 is a tubular structure with both ends open. The openings on both sides are sealed by end plates 122, thereby defining a closed accommodating chamber 128 within the main tube 121. An air inlet 123 and an air outlet are both provided on the main tube 121. The air inlet 123 and the air outlet connect the accommodating chamber 128 to the outside world through the air inlet 123 and the air outlet, allowing high-pressure gas to enter and exit the accommodating chamber 128 through the air inlet 123 and the air outlet.

[0041] Furthermore, the opening size of the air inlet 123 is larger than the opening size of the air outlet, so that the air intake of the air inlet 123 can simultaneously meet the air output of multiple air outlets. Furthermore, in this embodiment, the size of the air inlet 123 is DN40.

[0042] It should be noted that the gas distributor 120 is used to transfer high-pressure gas. Therefore, the design of the gas distributor 120 must be carried out in accordance with the pressure vessel specifications. Specifically, according to GB / T 150.1 / 2 / 3 / 4-2011 "Steel Pressure Vessels", this standard applies to the design and selection of pressure vessels with a design pressure ≤ 35 MPa and a design temperature between -269°C and 900°C, which can provide a reference for the design of gas distributor cylinders.

[0043] According to the "Technical Supervision Regulation for Safety of Simple Pressure Vessels" TSG R0003-2007, this regulation is applicable to pressure vessels with simple structure and low risk. The vessel can be composed of a cylinder and a flat head, the main material can be carbon steel, the design pressure is less than or equal to 1.6 MPa, the volume is less than or equal to 1000L, the medium is air, and the design temperature is greater than or equal to -20℃ and less than or equal to 150℃. It can provide a certain reference basis for the design of sub-cylinders;

[0044] Simple Pressure Vessels NB / T 47052-2016, this specification is applicable to pressure vessels with a design pressure of 1.6 MPa or less, a design temperature of -20°C or greater and 150°C or less, air as the medium, and a volume of 1m or less. 3 The construction requirements of simple pressure vessels in terms of type, material, design, manufacturing, inspection and acceptance are determined. It is also determined that the annual corrosion rate of general carbon steel or low alloy steel containers should not be less than 0.05mm / year, and the minimum wall thickness of the container should not be less than 2mm, which can provide a certain reference basis for the design of cylinders. In this embodiment, the air compressor model is Fusheng SA-90A-8-C (air-cooled type, exhaust volume 16m 3 / min, exhaust pressure 0.8MPa, power 90kw); gas tank model is Shanghai Shenjiang C-3.0 / 10 (volume 3.0m 3 Taking the high-pressure gas source 110 (with a design pressure of 1.05 MPa, a working pressure of 1.0 MPa, a test pressure of 1.32 MPa, and a design temperature of 110°C) as an example, the working pressure value (1.0 MPa) is selected as the design data of the gas distribution device 120.

[0045] In the example where the design data of the gas distributor 120 is the working pressure value (1.0 MPa), the pipe material can be ASTM A106, DN200, SCH40 / STD seamless steel pipe manufactured according to the ASME B36.10M manufacturing standard (the weight of any steel pipe shall not exceed the specified weight by more than 10%, nor shall it be less than 3.5%; the minimum wall thickness at any place shall not be thinner than the specified nominal wall thickness by more than 12.5%). The end plate 122 can be made of Q235 carbon steel plate (refer to Table 126.1 of ASME B31.1 and the production of plugs and covers in the "Pipeline Pressure Test Work Procedure", and refer to nuclear power standards). Suitable standard closed pipe fittings should be manufactured and selected according to the standards listed in Table 126.1 of ASME B31.1, and it should be noted that they are used within the specified pressure-temperature rating range of the pipe fittings. Alternatively, use the following end plate 122 type and the minimum thickness value calculated by the following formula:

[0046]

[0047] Where t is the minimum thickness of the end plate 122; d is the inner diameter of the main pipe 121; and C is a dimensionless coefficient related to the flat head connection method, the cylinder, the pipe, and other factors. For welded cover plates, the C value given includes a factor of 0.667, which increases the allowable stress for this type of structure to 1.5S. In the above diagram, C = 0.33, with a minimum C = 0.20; P is the design pressure in the main pipe 121; and S is the maximum allowable stress, which should not exceed the maximum allowable stress for the given material at the design temperature.

[0048] Figure 4 for Figure 3 Schematic diagram of the local structure at A. Please refer to Figure 1-Figure 4 In this embodiment, the end plate 122 is embedded in the main pipe 121. At this time, the outer periphery of the end plate 122 is welded to the inner pipe wall of the main pipe 121 to achieve a fixed connection between the end plate 122 and the main pipe 121.

[0049] Please refer to it again Figure 2 and Figure 3 In this embodiment, the air inlet 123 and the at least two air outlets are arranged in sequence along the axial direction of the main pipe 121 .

[0050] Furthermore, the gas separator 120 also includes a detection port 126 connected to the accommodating chamber 128. The detection port 126 and the air inlet 123 are arranged at both ends of the gas separator 120. A pressure gauge (not shown) is provided at the detection port 126, which can be used to detect the pressure in the accommodating chamber 128. Specifically, the air inlet 123, at least two air outlets, and the detection port 126 are arranged in sequence along the axial direction of the main pipe 121, with the air inlet 123 and the detection port 126 respectively located near the axial ends of the main pipe 121. Optionally, the size of the detection port 126 is DN15.

[0051] In this embodiment, the at least two gas outlets include a first gas outlet 124 and a second gas outlet 125. The first gas outlet 124 and the second gas outlet 125 have different opening sizes to output high-pressure gas at different pressures. Specifically, in this embodiment, the opening size of the first gas outlet 124 is larger than the opening size of the second gas outlet 125, and the first gas outlet 124 is located closer to the gas inlet 123 than the second gas outlet 125. Optionally, the size of the first gas outlet 124 is DN25, and the size of the second gas outlet 125 is DN20.

[0052] Furthermore, the number of the first air outlets 124 is at least two. The number of the second air outlets 125 is at least two. Specifically, in this embodiment, the number of the first air outlets 124 is set to two, and the number of the second air outlets 125 is set to two, that is, in this embodiment, the air separation device 120 is provided with a total of four air outlets.

[0053] It should be noted that the number of air outlets on the air separation device 120 is not limited here. It is understandable that in other embodiments, the number of air outlets can also be set according to specific needs, for example, to three, five, six, etc.

[0054] In this embodiment, the gas separator 120 further includes a drain port 127 in communication with the accommodating chamber 128. The drain port 127 is located on the lower side of the gas separator 120 and is used to discharge water vapor from the accommodating chamber 128. Specifically, the air inlet 123, the air outlet, and the detection port 126 are disposed on the upper side of the gas separator 120. In other words, the air inlet 123, the air outlet, and the detection port 126 are all disposed on either side of the drain port 127 in the radial direction of the gas separator 120. A ball valve is also provided at the drain port 127, which controls the opening and closing of the drain port 127. This allows the drain port 127 to be opened and closed for drainage as needed.

[0055] Figure 5 This is a structural diagram of the support frame 140 supporting the gas separation device 120 in the sandblasting equipment 100 provided in this embodiment. Figure 1-Figure 5In this embodiment, the sandblasting equipment 100 further includes a support frame 140 , and the gas separator 120 is mounted on the support frame 140 , so that the gas separator 120 is supported by the support frame 140 .

[0056] Specifically, support frame 140 includes support legs 141 and a limiting frame 142. Limiting frame 142 is a square structure formed by splicing multiple steel members. This square structure supports and limits the four sides of gas distributor 120. Support legs 141 are fixed to limiting frame 142, and the lower ends of support legs 141 are used to support a placement location such as the ground.

[0057] The sandblasting equipment 100 provided by the embodiment of the present invention is configured to redistribute the high-pressure gas provided by the high-pressure gas source 110 by providing an air distributor 120 between the high-pressure gas source 110 and the sandblasting gun 130. When the air distributor 120 redistributes the high-pressure gas, the gas output can be controlled by a ball valve provided at the gas outlet; if the pressure values ​​set by the air compressor 111 and the gas storage tank 112 are constant, the distributed gas pressure can be adjusted by a pressure-stabilizing and pressure-reducing valve; by adjusting the gas output and pressure, the distributed compressed air can meet the construction requirements of the sandblasting operation, thereby greatly improving the utilization rate of the sandblasting equipment 100 and reducing the procurement and maintenance costs of the sandblasting equipment 100. At the same time, the sandblasting equipment 100 can also be mass-produced to meet the multi-point setup requirements of large-scale sandblasting operations.

[0058] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with the technology in this field within the technical scope disclosed in the present invention should be covered by the protection scope of the present invention.

Claims

1. A sandblasting device, characterized in that: The sandblasting equipment comprises: A high-pressure gas source having a gas outlet; An air separator, the air separator comprising a receiving chamber, an air inlet, and at least two air outlets, the air inlet and the at least two air outlets being in communication with the receiving chamber, the air inlet being in communication with the air source outlet; and a ball valve being provided at each of the at least two air outlets; and At least two sandblasting guns are respectively connected to the air outlet, and the high-pressure air source is used to supply air to the at least two sandblasting guns at the same time.

2. The sandblasting equipment according to claim 1, characterized in that The at least two air outlets include a first air outlet and a second air outlet, and the first air outlet and the second air outlet have different opening sizes.

3. The sandblasting equipment according to claim 2, characterized in that The number of the first air outlets is at least two; and / or, The number of the second air outlets is at least two.

4. The sandblasting equipment according to claim 1, characterized in that The gas distribution device includes a main pipe and end plates welded and fixed on both sides of the main pipe, the main pipe and the end plates define the accommodating cavity; the air inlet and the at least two air outlets are both provided on the main pipe.

5. The sandblasting equipment according to claim 4, characterized in that The end plate is embedded in the main pipe, and the outer periphery of the end plate is fixed to the inner pipe wall of the main pipe by welding.

6. The sandblasting equipment according to claim 4, characterized in that The air inlet and the at least two air outlets are arranged sequentially along the axial direction of the main pipe.

7. The sandblasting equipment according to claim 1, characterized in that The opening size of the air inlet is larger than the opening size of the air outlet.

8. The sandblasting equipment according to claim 1, characterized in that The gas separation device further includes a detection port communicated with the accommodating cavity, wherein the detection port and the air inlet are arranged at two ends of the gas separation device; a pressure gauge is provided at the detection port, and the pressure gauge is used to detect the pressure in the accommodating cavity.

9. The sandblasting equipment according to claim 1, characterized in that The gas separation device further includes a drain port communicated with the accommodating cavity. The drain port is located at the lower side of the gas separation device and is used to discharge water vapor in the accommodating cavity.

10. The sandblasting equipment according to claim 1, wherein The sandblasting equipment further includes a supporting frame, and the air separator is mounted on the supporting frame so as to be supported by the supporting frame.

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