Compact normal-temperature liquid metering weightlessness scale

Abstract

The utility model relates to a compact normal-temperature liquid metering weightlessness scale. Comprising a base, a support arranged at the top of the base, a material supplementing barrel used for supplementing materials, a metering barrel used for metering the materials, a weighing platform component used for weighing the materials and a metering pump used for conveying the materials. The weighing platform component is mounted on the base; the metering barrel is mounted on the weighing platform component; the supplementing barrel is mounted at the top end of the bracket; a discharging pipe of the material supplementing barrel is connected with a feeding hole of the metering barrel through a pneumatic ball valve, a flange connecting pipe and a soft connecting piece in sequence; the metering pump is mounted on the bracket; a three-way pipe, a damper and an oil pressure gauge are sequentially mounted at the top joint of the metering pump; a spray gun is mounted on one side of the three-way pipe; and a flexible bent pipe and a Y-shaped filter are sequentially mounted at the joint of the bottom end of the metering pump. The normal-temperature liquid metering weightlessness scale solves the technical problems that a normal-temperature liquid metering weightlessness scale in the prior art is too simple in structure and inaccurate in metering, or the normal-temperature liquid metering weightlessness scale is too complex in structure, too many in connecting pieces, many in leakage points and inaccurate in metering.

Description

Technical Field

[0001] The utility model relates to the field of metering loss-in-weight scales, in particular to a compact normal-temperature liquid metering loss-in-weight scale. Background Art

[0002] Room-temperature liquid loss-in-weight scales are used for precise metering and feeding of liquids at room temperature in industries such as chemicals, food, plastics, and water supply. Commonly used room-temperature liquid loss-in-weight scales on the market are either overly simple in structure, resulting in inaccurate measurement, or overly complex in structure, with excessive connections, numerous leak points, and inaccurate measurement. Utility Model Content

[0003] The embodiments of the present application provide a compact loss-in-weight scale for measuring liquids at room temperature, thereby solving the technical problems in existing technical solutions that loss-in-weight scales for measuring liquids at room temperature are either too simple in structure and inaccurate in measurement, or too complex in structure, with too many connecting parts, many leakage points, and inaccurate measurement.

[0004] The technical solutions adopted in the embodiments of this application are as follows:

[0005] A compact room-temperature liquid metering loss-in-weight scale comprises a base, a bracket arranged on the top of the base, a feeding barrel for feeding, a metering barrel for material metering, a weighing platform component for material weighing, and a metering pump for conveying material; the weighing platform component is mounted on the base; the metering barrel is mounted on the weighing platform component; the feeding barrel is mounted on the top of the bracket; the feeding barrel discharge pipe and the metering barrel feed port are connected in sequence via a pneumatic ball valve, a flange pipe and a soft connector; the metering pump is mounted on the bracket; a tee pipe, a damper and an oil pressure gauge are mounted in sequence at the top connection of the metering pump; a spray gun is mounted on one side of the tee pipe; a flexible elbow and a Y-type filter are mounted in sequence at the bottom connection of the metering pump; the Y-type filter is connected to the discharge pipe at the bottom end of the metering barrel.

[0006] A further technical solution is: a feeding barrel cover is provided at the opening of the feeding barrel; the feeding barrel cover is installed at the opening of the feeding barrel through a clamp; a liquid level gauge is installed on the feeding barrel cover, and the liquid level gauge is located in the inner cavity of the feeding barrel; a metering barrel cover is provided at the opening of the metering barrel; the metering barrel cover is installed at the opening of the metering barrel through a clamp; manual ball valves are provided at the feeding barrel discharge pipe and the metering barrel discharge pipe.

[0007] A further technical solution is: the weighing platform components include a weighing platform cover, a protective block, a weighing base, a rubber pad, a weighing sensor, a weighing platform plate and a sensor gasket; the weighing platform cover is installed on the weighing base plate; four groups of the protective blocks arranged in a rectangular array are provided at the connection between the weighing platform cover and the weighing base plate; four groups of rubber pads arranged in a rectangular array are provided at the bottom of the weighing base plate; each group of the rubber pads is connected to the base; the weighing sensor is installed in the inner cavity of the weighing platform cover, and the bottom end of the weighing sensor is connected to the sensor gasket; the sensor gasket is provided on the base; the weighing platform plate is installed on the top of the weighing platform cover; the metering barrel is installed on the weighing platform plate.

[0008] A further technical solution is: four groups of Forma casters arranged in a rectangular array are provided at the bottom end of the base.

[0009] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages:

[0010] 1. Due to the configuration of the base, bracket, feeding bucket, metering bucket, weighing platform, metering pump, pneumatic ball valve, flange pipe, flexible connector, flexible elbow, and Y-type filter, when the liquid level gauge alarms low, manual feeding begins by injecting liquid into the feeding bucket through the small nozzle on the feeding bucket lid. When the liquid level gauge reaches high level, the alarm stops, and the feeding bucket is now ready to feed. Because the metering bucket is fixed to the weighing platform, when the load cell senses that the weight of the liquid in the metering bucket has reached the set minimum weight, it sends a signal to the control unit, which controls the opening of the pneumatic ball valve. The feeding bucket then adds liquid to the metering bucket through the pneumatic ball valve, flange pipe, and flexible connector until the liquid weight reaches the set maximum weight. When the load cell senses this, it sends a signal to the control unit, which controls the closing of the pneumatic ball valve, completing the feeding process. The control unit simultaneously controls the metering pump to supply material to downstream equipment such as extruders, mixers, and reactors at a set flow rate and pressure. The metering pump continuously draws liquid from the metering tank, filters it through a Y-type filter, and then flows into a flexible elbow pipe to the metering pump head. The metering pump then pumps it out through a tee to the spray gun, dispensing it. The entire process is a dynamic weighing and metering process. A manual ball valve connected to the feed tank is used to drain the old material from the feed tank when changing materials. The manual ball valve connected to the metering tank is also used to drain the old material from the feed tank when changing materials. The flexible connector, flexible elbow, and rubber gasket are all flexible components that isolate the movement and vibration of upstream and downstream equipment from affecting weighing. A protective block is used to prevent pressure or tension beyond the load cell's range from directly acting on the load cell during transportation. Before transportation, the scale base and scale plate are rigidly bolted together to maximize protection for the load cell. The protective block is removed during measurement. For the existing room temperature liquid metering loss-in-weight scale, Youhua has improved the overall layout structure and made full use of the limited space; the metering pump and liquid storage tank use an integrated mounting bracket, and the bracket is directly welded and fixed to the base, which has a compact structure and improved stability, reducing the impact of the metering pump on the dynamic measurement of liquid during operation, making the measurement more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The figure is a schematic diagram of the overall structure of a compact room temperature liquid metering loss-in-weight scale in an embodiment of the present utility model.

[0012] Figure 2 This is a cross-sectional view of the overall structure of a compact room-temperature liquid metering loss-in-weight scale in an embodiment of the present utility model.

[0013] In the figure: 1. Base; 11. Foma caster; 2. Bracket; 3. Feeding bucket; 31. Feeding bucket cover; 32. Liquid level gauge; 33. Manual ball valve; 4. Metering bucket; 41. Metering bucket cover; 5. Scale platform components; 51. Scale platform cover; 52. Protective block; 53. Scale bottom plate; 54. Rubber pad; 55. Weighing sensor; 56. Scale platform; 57. Sensor gasket; 6. Metering pump; 61. Tee; 62. Damper; 63. Oil pressure gauge; 64. Spray gun; 65. Flexible elbow; 66. Y-type filter; 7. Pneumatic ball valve; 8. Flange connecting pipe; 9. Flexible connector. DETAILED DESCRIPTION

[0014] The embodiments of the present application provide a compact loss-in-weight scale for measuring liquids at room temperature, thereby solving the technical problems in existing technical solutions that loss-in-weight scales for measuring liquids at room temperature are either too simple in structure and inaccurate in measurement, or too complex in structure, with too many connecting parts, many leakage points, and inaccurate measurement.

[0015] The technical solution in the embodiments of the present application is to solve the above problems, and the overall idea is as follows:

[0016] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] A compact loss-in-weight scale for measuring liquids at room temperature, such as Figure 1 and Figure 2 As shown, it includes a base 1, a bracket 2 arranged on the top of the base 1, a feeding barrel 3 for feeding, a metering barrel 4 for material metering, a weighing platform component 5 for material weighing, and a metering pump 6 for conveying materials. The weighing platform component 5 is installed on the base 1. The metering barrel 4 is installed on the weighing platform component 5. The feeding barrel 3 is installed on the top of the bracket 2. The discharge pipe of the feeding barrel 3 and the feed port of the metering barrel 4 are connected in sequence through a pneumatic ball valve 7, a flange pipe 8 and a soft connector 9. The metering pump 6 is installed on the bracket 2. A tee pipe 61, a damper 62 and an oil pressure gauge 63 are installed in sequence at the top connection of the metering pump 6. A spray gun 64 is installed on one side of the tee pipe 61. A flexible elbow 65 and a Y-type filter 66 are installed in sequence at the bottom connection of the metering pump 6. The Y-type filter 66 is connected to the discharge pipe at the bottom end of the metering barrel 4.

[0018] A feeding bucket cover 31 is installed at the opening of the feeding bucket 3. This cover is mounted to the opening of the feeding bucket 3 via a clamp. A liquid level gauge 32 is mounted on this cover and located within the inner cavity of the feeding bucket 3. A metering bucket cover 41 is installed at the opening of the metering bucket 4. This cover is mounted to the opening of the metering bucket 4 via a clamp. Manual ball valves 33 are installed at the discharge pipes of both the feeding bucket 3 and the metering bucket 4.

[0019] The weighing platform component 5 includes a weighing platform cover 51, a protective block 52, a weighing base plate 53, a rubber pad 54, a weighing sensor 55, a weighing platform plate 56 and a sensor gasket 57. The weighing platform cover 51 is installed on the weighing base plate 53. Four groups of protective blocks 52 arranged in a rectangular array are provided at the connection between the weighing platform cover 51 and the weighing base plate 53. Four groups of rubber pads 54 arranged in a rectangular array are provided at the bottom of the weighing base plate 53. Each group of rubber pads 54 is connected to the base 1. The weighing sensor 55 is installed in the inner cavity of the weighing platform cover 51, and the bottom end of the weighing sensor 55 is connected to the sensor gasket 57. The sensor gasket 57 is set on the base 1. The weighing platform plate 56 is installed on the top of the weighing platform cover 51. The metering bucket 4 is installed on the weighing platform plate 56.

[0020] The bottom end of the base 1 is provided with four sets of Forma casters 11 arranged in a rectangular array.

[0021] The bracket 2 is fixedly mounted on the top of the base 1. The weighing platform component 5 is fixedly mounted on the top of the base 1. The metering barrel 4 is fixedly mounted on the weighing platform component 5. The feeding barrel 3 is fixedly mounted on the top of the bracket 2. The discharge pipe of the feeding barrel 3 and the feed inlet of the metering barrel 4 are fixedly connected in sequence by a pneumatic ball valve 7, a flange pipe 8, and a flexible connector 9. The metering pump 6 is fixedly mounted on one side of the bracket 2. A tee pipe 61, a damper 62, and an oil pressure gauge 63 are fixedly mounted in sequence at the top connection of the metering pump 6. A spray gun 64 is fixedly mounted on one side of the tee pipe 61. A flexible elbow 65 and a Y-type filter 66 are fixedly mounted in sequence at the bottom connection of the metering pump 6. The Y-type filter 66 is fixedly connected to the discharge pipe at the bottom end of the metering barrel 4. The feeding barrel cover 31 is detachably fixed to the opening of the feeding barrel 3 by a clamp. A liquid level gauge 32 is fixedly mounted on the feeding barrel cover 31, and the liquid level gauge 32 is located in the inner cavity of the feeding barrel 3. The metering barrel cover 41 is removably fixed to the opening of the metering barrel 4 via a clamp. Manual ball valves 33 are fixedly installed at the discharge pipes of the feeding barrel 3 and the metering barrel 4. The weighing platform cover 51 is fixedly installed on the top of the weighing base plate 53. Four sets of protective blocks 52 arranged in a rectangular array are installed at the connection between the weighing platform cover 51 and the weighing base plate 53. Four sets of rubber pads 54 arranged in a rectangular array are fixedly installed at the bottom of the weighing base plate 53. Each set of rubber pads 54 is fixedly connected to the top of the base 1. The weighing sensor 55 is fixedly installed in the inner cavity of the weighing platform cover 51, and the bottom end of the weighing sensor 55 is fixedly connected to the sensor gasket 57. The sensor gasket 57 is fixedly connected to the top of the base 1. The weighing platform plate 56 is fixedly installed on the top of the weighing platform cover 51. The metering barrel 4 is fixedly mounted on the weighing platform plate 56. Four sets of Forma casters 11 arranged in a rectangular array are fixedly installed at the bottom end of the base 1.

[0022] Due to the arrangement of the base 1, bracket 2, feeding bucket 3, metering bucket 4, weighing platform 5, metering pump 6, pneumatic ball valve 7, flange pipe 8, flexible connector 9, flexible elbow 65, and Y-type filter 66, when the liquid level gauge 32 alarms low, manual feeding begins by injecting liquid into the feeding bucket 3 through the small nozzle on the feeding bucket lid 31. When the liquid level gauge 32 reaches a high level, the alarm stops, and the feeding bucket 3 is now ready for feeding. Because the metering bucket 4 is fixedly mounted on the weighing platform 5, when the load cell 55 senses that the weight of the liquid in the metering bucket 4 has reached a set minimum weight, it sends a signal to the control unit, which controls the pneumatic ball valve 7 to open, and the feeding bucket 3 then adds liquid to the metering bucket 4 through the pneumatic ball valve 7, flange pipe 8, and flexible connector 9 until the liquid weight reaches the set maximum weight. When the load cell 55 senses this, it sends a signal to the control unit, which controls the pneumatic ball valve 7 to close, completing the feeding process. The control unit simultaneously controls metering pump 6 to feed downstream equipment such as extruders, mixers, and reactors at a set flow rate and pressure. As metering pump 6 operates, liquid is continuously drawn from metering barrel 4, filtered through Y-type filter 66, and then pumped into flexible elbow 65 to the pump head of metering pump 6. This pump is then pumped out by metering pump 6 and sprayed through tee 61 to spray gun 64. The entire process is a dynamic weighing and metering process. The manual ball valve 33 connected to the feed barrel 3 is used to drain old material when the feed barrel 3 is replaced. The manual ball valve 33 connected to the metering barrel 4 is used to drain old material when the material is replaced. The flexible connector 9, flexible elbow 65, and rubber pad 54 are all flexible components that prevent the movement and shaking of upstream and downstream equipment from affecting weighing. The protective block 52 is used to prevent pressure or tension beyond the measuring range of the weighing sensor 55 from directly acting on the weighing sensor 55 during transportation. Before transportation, the scale base 53 and the scale table 56 are directly and rigidly connected with bolts to maximize the protection of the weighing sensor 55. The protective block 52 is removed during measurement. Compared with existing room-temperature liquid loss-in-weight scales, the overall layout structure has been optimized to fully utilize the limited space. The metering pump 6 and liquid storage tank are installed with an integrated mounting bracket, and the bracket 2 is directly welded to the base 1. The structure is compact and the stability is improved. The influence of the metering pump 6 on the dynamic liquid delivery is reduced, making the measurement more accurate.

[0023] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0024] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A compact room temperature liquid loss-in-weight scale, characterized in that: The invention comprises a base (1), a bracket (2) arranged on the top of the base (1), a feeding bucket (3) for feeding, a metering bucket (4) for material metering, a weighing platform component (5) for material weighing, and a metering pump (6) for conveying material; the weighing platform component (5) is mounted on the base (1); the metering bucket (4) is mounted on the weighing platform component (5); the feeding bucket (3) is mounted on the top of the bracket (2); a discharge pipe of the feeding bucket (3) and a feeding port of the metering bucket (4) are connected in sequence through The pneumatic ball valve (7), the flange pipe (8) and the soft connector (9) are connected; the metering pump (6) is installed on the bracket (2); the top connection of the metering pump (6) is sequentially installed with a three-way pipe (61), a damper (62) and an oil pressure gauge (63); a spray gun (64) is installed on one side of the three-way pipe (61); the bottom connection of the metering pump (6) is sequentially installed with a flexible elbow (65) and a Y-type filter (66); the Y-type filter (66) is connected to the discharge pipe at the bottom end of the metering barrel (4).

2. A compact room temperature liquid loss-in-weight scale according to claim 1, characterized in that: The feeding barrel (3) is provided with a feeding barrel cover (31) at the opening; the feeding barrel cover (31) is mounted on the opening of the feeding barrel (3) through a clamp; a liquid level gauge (32) is mounted on the feeding barrel cover (31), and the liquid level gauge (32) is located in the inner cavity of the feeding barrel (3); a metering barrel cover (41) is provided at the opening of the metering barrel (4); the metering barrel cover (41) is mounted on the opening of the metering barrel (4) through a clamp; and manual ball valves (33) are provided at the discharge pipe of the feeding barrel (3) and the discharge pipe of the metering barrel (4).

3. A compact room temperature liquid loss-in-weight scale according to claim 2, characterized in that: The weighing platform component (5) comprises a weighing platform cover (51), a protection block (52), a weighing base plate (53), a rubber pad (54), a weighing sensor (55), a weighing platform plate (56) and a sensor gasket (57); the weighing platform cover (51) is mounted on the weighing base plate (53); four groups of the protection blocks (52) arranged in a rectangular array are provided at the connection between the weighing platform cover (51) and the weighing base plate (53); four groups of the protection blocks (52) arranged in a rectangular array are provided at the bottom of the weighing base plate (53). The rubber pads (54) are placed; each group of the rubber pads (54) is connected to the base (1); the weighing sensor (55) is installed in the inner cavity of the weighing platform cover (51), and the bottom end of the weighing sensor (55) is connected to the sensor gasket (57); the sensor gasket (57) is set on the base (1); the weighing platform plate (56) is installed on the top of the weighing platform cover (51); the metering barrel (4) is installed on the weighing platform plate (56).

4. A compact room temperature liquid loss-in-weight scale according to claim 1, characterized in that: The bottom end of the base (1) is provided with four groups of Forma casters (11) arranged in a rectangular array.

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