Liquid level detection structure of vacuum metering tank for waste acid treatment

Abstract

The utility model relates to the technical field of liquid level detection structures, in particular to a liquid level detection structure of a vacuum metering tank for waste acid treatment. The liquid level detection structure of the vacuum metering tank for waste acid treatment aims at solving the technical problems that in the prior art, the liquid level detection structure is installed in the vacuum metering tank and is prone to being corroded by acid liquid, and a detection structure installed on the outer side of the vacuum metering tank is not provided with a protection mechanism. According to the technical scheme, the liquid level detection structure of the vacuum metering tank for waste acid treatment comprises an indicator, a blow-off pipe, a blow-off valve, a protection assembly, an exhaust valve, a lower locking assembly, an upper locking assembly and a baffle; the front end of the liquid level meter assembly is fixedly connected with an indicator. The liquid level detection device is integrally installed on the outer side of the vacuum metering tank, corrosion of acid liquid in the vacuum metering tank to the liquid level detection structure is effectively avoided, under the condition that reading of liquid level data is not affected, all-around protection is conducted on the liquid level detection structure, and the integrity of the liquid level detection structure is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level detection structures, in particular to a liquid level detection structure of a vacuum metering tank for waste acid treatment. Background Art

[0002] The main purpose of waste acid treatment is to separate the soluble substances present in the dilute acid solution, which can be recycled after purification. The use of vacuum metering tanks is indispensable in the treatment of waste acid. If the liquid level in the vacuum metering tank is too high or too low, it will have an adverse effect on the waste acid treatment process. If the liquid level is too high, it will cause excessive pressure on the equipment and easily cause safety accidents. If the liquid level is too low, it will affect the waste acid treatment efficiency. Therefore, it is necessary to detect the liquid level in the vacuum metering tank. However, most of the existing detection structures are installed inside the vacuum metering tank, which is easily corroded by acidic liquids and has a short service life. Some detection structures installed on the outside of the vacuum metering tank do not have a protective mechanism and are easily damaged when subjected to external force. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a liquid level detection structure for a vacuum metering tank for waste acid treatment, which aims to solve the technical problems that the detection structure installed inside the vacuum metering tank under the prior art is easily corroded by acidic liquid, and the detection structure installed outside the vacuum metering tank does not have a protective mechanism.

[0004] The technical scheme of the utility model is: a liquid level detection structure of a vacuum metering tank for waste acid treatment, comprising a liquid level gauge assembly; also comprising an indicator, a sewage pipe, a sewage valve, a protective assembly, an exhaust valve, a lower locking assembly, an upper locking assembly and a baffle; the front end of the liquid level gauge assembly is fixedly connected with an indicator; the lower end of the liquid level gauge assembly is installed with a sewage pipe; the sewage pipe is provided with a sewage valve; the outer side of the liquid level gauge assembly is fixedly connected with a protective assembly; the upper end of the liquid level gauge assembly is fixedly connected with an exhaust valve; the outer side of the protective assembly is fixedly connected with a lower locking assembly; the upper end of the lower locking assembly is installed with a detachable upper locking assembly; the upper end of the upper locking assembly is fixedly connected with a baffle.

[0005] Preferably, the liquid level gauge assembly is connected to a vacuum metering tank used for waste acid treatment, the upper locking assembly is inserted into the lower locking assembly and fixed, the baffle shields the exhaust valve, the protective assembly protects the liquid level gauge assembly, the liquid in the vacuum metering tank enters the liquid level gauge assembly, and through coupling, the indicator indicates the position of the liquid level, and finally the drain valve is opened to discharge the residual liquid in the liquid level gauge assembly from the drain pipe.

[0006] Preferably, the liquid level meter assembly includes a liquid level cylinder; an upper end cover is fixedly connected to the upper end of the liquid level cylinder; an upper flange interface and a water inlet interface are sequentially arranged at the rear end of the liquid level cylinder from top to bottom; a lower end cover is fixedly connected to the lower end of the liquid level cylinder; a magnetic float is movably connected inside the liquid level cylinder; the magnetic float and the indicator are magnetically coupled; scale lines are arranged on the surface of the indicator, and the liquid level value can be accurately read through the magnetic coupling between the magnetic float and the indicator.

[0007] Preferably, the protective assembly includes an outer protective cover; a storage groove is provided at the right end of the outer protective cover; a slot is provided at the left end of the outer protective cover; a guide groove is provided at the upper end of the outer protective cover and is connected to the storage groove; a guide block is slidably connected in the guide groove; a movable protective cover installed in the storage groove is fixedly connected to the lower end of the guide block; the movable protective cover is made of transparent acrylic, and the transparent acrylic material does not affect the reading of the value on the indicator.

[0008] Preferably, a rubber connecting column fixedly connected to the liquid level meter assembly is fixedly connected to the inner side of the outer protective cover; a positioning threaded hole communicating with the slot is provided at the upper end of the outer protective cover; a locking hole is provided at the upper end of the movable protective cover; a locking bolt is threadedly connected to the inner thread of the positioning threaded hole; a through hole is provided on the outer protective cover, and the movable protective cover is fixed with the locking bolt to ensure the stability of the movable protective cover.

[0009] Preferably, the lower locking assembly includes a locking seat and a spring; the locking seat and the spring are fixedly connected to the outside of the protective assembly; an arc-shaped pull rod is fixedly connected to the outside of the spring; a through groove is provided at the upper end of the locking seat; a locking groove that is connected to the through groove is provided on the outer surface of the locking seat; a locking block extending into the locking groove is fixedly connected to the inner side of the arc-shaped pull rod, and the locking block is inserted into the locking groove in the absence of external force by utilizing the rebound force of the spring, thereby fixing the locking rod.

[0010] Preferably, the upper locking assembly includes a connecting block rod; the lower end of the connecting block rod is fixedly connected to the locking rod; a positioning groove is provided on the outer surface of the locking rod, and after the locking rod is inserted into the locking seat, the lower end of the connecting block rod is fitted with the upper end of the locking seat, thereby playing a limiting role.

[0011] Beneficial effects of the utility model:

[0012] 1. The whole device is installed on the outside of the vacuum metering tank, which effectively avoids the corrosion of the liquid level detection structure by the acidic liquid in the vacuum metering tank, effectively improves the service life of the liquid level detection structure and reduces the cost. In addition, a protective mechanism is also provided on the outside of the liquid level detection structure to provide all-round protection for the liquid level detection structure without affecting the reading of the liquid level data, thereby ensuring the integrity of the liquid level detection structure.

[0013] 2. The movable protective cover adopts a retractable design, which can better inspect and maintain the liquid level meter assembly. After the movable protective cover is closed, it can provide all-round protection for the liquid level meter assembly without affecting the reading of the liquid level value on the indicator. The baffle shields the exhaust valve to avoid damage to the exhaust valve, and the baffle is installed through the upper locking assembly and the lower locking assembly, making the disassembly and assembly of the baffle easier and more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The first three-dimensional structure schematic diagram of the liquid level detection structure of the vacuum metering tank for waste acid treatment of the utility model is shown;

[0015] Figure 2 The figure shows a schematic diagram of the cross-sectional three-dimensional structure of a liquid level gauge component in the liquid level detection structure of the vacuum metering tank for waste acid treatment of the utility model;

[0016] Figure 3 The present invention shows a schematic diagram of the three-dimensional structure of the protective component in the liquid level detection structure of the vacuum metering tank for waste acid treatment of the present invention;

[0017] Figure 4 What is shown is a schematic diagram of the three-dimensional structure of the lower locking component and the upper locking component in the liquid level detection structure of the vacuum metering tank for waste acid treatment of the utility model.

[0018] Explanation of the accompanying drawings: 1. Liquid level gauge assembly; 11. Liquid level cylinder; 12. Upper end cover; 13. Upper flange interface; 14. Water inlet interface; 15. Lower end cover; 16. Magnetic float; 2. Indicator; 3. Drain pipe; 4. Drain valve; 5. Protection assembly; 51. Outer protective cover; 52. Storage groove; 53. Slot; 54. Guide groove; 55. Guide block; 56. Movable protective cover; 57. Rubber connecting column; 58. Positioning threaded hole; 59. Locking hole; 510. Locking bolt; 511. Through hole; 6. Exhaust valve; 7. Lower locking assembly; 71. Locking seat; 72. Spring; 73. Arc pull rod; 74. Through groove; 75. Locking groove; 76. Locking block; 8. Upper locking assembly; 81. Connecting stop rod; 82. Locking rod; 83. Positioning groove; 9. Baffle. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0020] See also Figure 1The utility model provides an embodiment: a liquid level detection structure of a vacuum metering tank for waste acid treatment, comprising a liquid level gauge assembly 1; further comprising an indicator 2, a drain pipe 3, a drain valve 4, a protective assembly 5, an exhaust valve 6, a lower locking assembly 7, an upper locking assembly 8 and a baffle 9; the front end of the liquid level gauge assembly 1 is fixedly connected with the indicator 2; the lower end of the liquid level gauge assembly 1 is provided with a drain pipe 3; the drain pipe 3 is provided with a drain valve 4; the outer side of the liquid level gauge assembly 1 is fixedly connected with the protective assembly 5; the upper end of the liquid level gauge assembly 1 is fixedly connected with the exhaust valve 6; the protective assembly 5 is fixedly connected to the outer side with a lower locking assembly 7; a detachable upper locking assembly 8 is installed on the upper end of the lower locking assembly 7; a baffle 9 is fixedly connected to the upper end of the upper locking assembly 8; the liquid level gauge assembly 1 includes a liquid level cylinder 11; an upper end cover 12 is fixedly connected to the upper end of the liquid level cylinder 11; an upper flange interface 13 and a water inlet interface 14 are sequentially arranged at the rear end of the liquid level cylinder 11 from top to bottom; a lower end cover 15 is fixedly connected to the lower end of the liquid level cylinder 11; a magnetic float 16 is movably connected inside the liquid level cylinder 11; the magnetic float 16 is magnetically coupled to the indicator 2; and scale lines are arranged on the surface of the indicator 2.

[0021] See also Figure 2 In this embodiment, the protective assembly 5 includes an outer protective cover 51; a storage groove 52 is provided at the right end of the outer protective cover 51; a slot 53 is provided at the left end of the outer protective cover 51; a guide groove 54 is provided at the upper end of the outer protective cover 51 and is connected to the storage groove 52; a guide block 55 is slidably connected in the guide groove 54; a movable protective cover 56 installed in the storage groove 52 is fixedly connected to the lower end of the guide block 55; the material of the movable protective cover 56 is transparent acrylic; a rubber connecting column 57 fixedly connected to the inner side of the outer protective cover 51 is fixedly connected to the liquid level meter assembly 1; a positioning threaded hole 58 connected to the slot 53 is provided at the upper end of the outer protective cover 51; a locking hole 59 is provided at the upper end of the movable protective cover 56; a locking bolt 510 is threadedly connected to the positioning threaded hole 58; and a through hole 511 is provided on the outer protective cover 51.

[0022] See also Figure 3-4 In this embodiment, the lower locking assembly 7 includes a locking seat 71 and a spring 72; the locking seat 71 and the spring 72 are fixedly connected to the outer side of the protective assembly 5; an arc-shaped pull rod 73 is fixedly connected to the outer side of the spring 72; a through groove 74 is provided at the upper end of the locking seat 71; a locking groove 75 that is connected to the through groove 74 is provided on the outer surface of the locking seat 71; a locking block 76 that extends into the locking groove 75 is fixedly connected to the inner side of the arc-shaped pull rod 73; the upper locking assembly 8 includes a connecting baffle 81; a locking rod 82 is fixedly connected to the lower end of the connecting baffle 81; a positioning groove 83 is provided on the outer surface of the locking rod 82.

[0023] When working, the liquid level meter assembly 1 is connected to the vacuum metering tank for waste acid treatment through the upper flange interface 13 and the water inlet interface 14, the arc pull rod 73 is pulled outward, the spring 72 is stretched, the locking block 76 moves in the locking groove 75, the locking rod 82 connected to the lower end of the baffle rod 81 is inserted into the through groove 74 on the locking seat 71, the arc pull rod 73 is loosened, the locking block 76 is inserted into the positioning groove 83, the upper locking assembly 8 and the lower locking assembly 7 are fixed, the baffle 9 blocks the exhaust valve 6, the guide block 55 in the guide groove 54 is rotated, the movable protective cover 56 slides in the receiving groove 52 and extends into the slot 53, and the locking bolt 51 is tightened. 0, fix the movable protective cover 56, and the outer protective cover 51 protects the liquid level gauge assembly 1. The liquid in the vacuum metering tank enters the liquid level cylinder 11, and the magnetic float 16 rises and falls with the liquid level. The permanent magnet in the magnetic float 16 drives the magnetic flap in the indicator 2 to flip 180° through magnetic coupling. The two sides of the flap are painted with different colors, usually red and white, to indicate the position of the liquid level. When the liquid level rises, the flap changes from white to red. When the liquid level in the container drops, the flap changes from red to white. The red and white junction of the indicator 2 is the actual height of the liquid level. Finally, open the drain valve 4 to discharge the residual liquid in the liquid level gauge assembly 1 from the drain pipe 3.

[0024] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A liquid level detection structure for a vacuum metering tank for waste acid treatment, comprising a liquid level meter assembly (1); characterized in that: The device also comprises an indicator (2), a sewage pipe (3), a sewage valve (4), a protective component (5), an exhaust valve (6), a lower locking component (7), an upper locking component (8) and a baffle (9); the front end of the liquid level gauge component (1) is fixedly connected to the indicator (2); the lower end of the liquid level gauge component (1) is equipped with a sewage pipe (3); the sewage pipe (3) is provided with a sewage valve (4); the outer side of the liquid level gauge component (1) is fixedly connected to the protective component (5); the upper end of the liquid level gauge component (1) is fixedly connected to the exhaust valve (6); the outer side of the protective component (5) is fixedly connected to the lower locking component (7); the upper end of the lower locking component (7) is equipped with a detachable upper locking component (8); and the upper end of the upper locking component (8) is fixedly connected to the baffle (9).

2. The liquid level detection structure of a vacuum metering tank for waste acid treatment according to claim 1, characterized in that: The liquid level gauge assembly (1) comprises a liquid level cylinder (11); the upper end of the liquid level cylinder (11) is fixedly connected to an upper end cover (12); the rear end of the liquid level cylinder (11) is provided with an upper flange interface (13) and a water inlet interface (14) in sequence from top to bottom; the lower end of the liquid level cylinder (11) is fixedly connected to a lower end cover (15); a magnetic float (16) is movably connected inside the liquid level cylinder (11); the magnetic float (16) and the indicator (2) are magnetically coupled; and scale lines are provided on the surface of the indicator (2).

3. The liquid level detection structure of a vacuum metering tank for waste acid treatment according to claim 1, characterized in that: The protection assembly (5) comprises an outer protection cover (51); a storage groove (52) is provided at the right end of the outer protection cover (51); a slot (53) is provided at the left end of the outer protection cover (51); a guide groove (54) is provided at the upper end of the outer protection cover (51) and is connected to the storage groove (52); a guide block (55) is slidably connected in the guide groove (54); a movable protection cover (56) installed in the storage groove (52) is fixedly connected at the lower end of the guide block (55); the movable protection cover (56) is made of transparent acrylic.

4. The liquid level detection structure of a vacuum metering tank for waste acid treatment according to claim 3 is characterized in that: A rubber connecting column (57) fixedly connected to the liquid level meter assembly (1) is fixedly connected to the inner side of the outer protective cover (51); a positioning threaded hole (58) intersecting the slot (53) is provided at the upper end of the outer protective cover (51); a locking hole (59) is provided at the upper end of the movable protective cover (56); a locking bolt (510) is connected to the inner thread of the positioning threaded hole (58); and a through hole (511) is provided on the outer protective cover (51).

5. The liquid level detection structure of a vacuum metering tank for waste acid treatment according to claim 1, characterized in that: The lower locking assembly (7) comprises a locking seat (71) and a spring (72); the locking seat (71) and the spring (72) are fixedly connected to the outer side of the protection assembly (5); an arc-shaped pull rod (73) is fixedly connected to the outer side of the spring (72); a through groove (74) is formed at the upper end of the locking seat (71); a locking groove (75) which is intersecting with the through groove (74) is formed on the outer surface of the locking seat (71); and a locking block (76) which extends into the locking groove (75) is fixedly connected to the inner side of the arc-shaped pull rod (73).

6. The liquid level detection structure of a vacuum metering tank for waste acid treatment according to claim 1, characterized in that: The upper locking assembly (8) comprises a connecting block rod (81); the lower end of the connecting block rod (81) is fixedly connected to a locking rod (82); and a positioning groove (83) is provided on the outer surface of the locking rod (82).

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