CN219624865U - Safe and efficient chemical constant-pressure tank calibration device - Google Patents

Abstract

The utility model discloses a safe and efficient chemical constant-pressure tank calibration device, wherein a hollowed-out partition plate is fixedly arranged at the position, outside a constant-pressure tank body, of the inner side of a working machine table, a constant-pressure tank body is positioned at the inner side of the hollowed-out partition plate, the front surface and the back surface of the hollowed-out partition plate are fixedly connected with transparent observation plates in an embedded mode.

Description

Safe and efficient chemical constant-pressure tank calibration device

Technical Field

The utility model relates to the technical field of manufacturing of crystalline silicon solar cells, in particular to a safe and efficient chemical constant-pressure tank calibration device.

Background

The manufacturing process of the crystalline silicon solar cell mainly comprises working procedures such as texturing, diffusion, etching, alkali polishing, ALD, CVD, screen printing/sintering and the like, wherein the texturing and the alkali polishing relate to chemicals, such as HF, HCL, KOH, H O2 and the like, and in order to ensure stable production of a production line, the added chemicals relate to accuracy problems, so that a calibration period is inevitably needed, manual operation is needed for calibration, the calibration period is unequal, the chemicals are corrosive, and a great potential safety hazard exists in the calibration process, at present, in order to ensure the cleaning effect, the existing liquid adding mode is to add liquid by utilizing a constant pressure liquid supply principle, namely, the opening time of a valve is controlled by utilizing a constant pressure tank constant flow mode, in the prior art, the chemicals are added by a texturing and alkali polishing machine, the constant pressure tank scale is 50ml, the accuracy cannot meet the production line requirement, in order to stabilize production, the accuracy of chemical adding is needed, a calibration period is needed to confirm each time, a worker is needed to manually pull a liquid adding pipe out of a tank body, the accuracy of liquid outlet alignment is 10ml of the added chemicals is needed, and the accuracy of the chemical adding is judged by another worker in an operation page;

however, the current liquid adding device is greatly influenced by factors such as pipeline resistance, valve opening, tank pressure fluctuation and the like in application, the current liquid adding device needs to be used for checking pipelines and valves at regular intervals, flow is required to be corrected frequently, meanwhile, the current operation mode has great potential safety hazard, personnel can not move conveniently after wearing protective clothing, and chemicals can be inevitably left on the protective clothing or shoes in the calibration process, so that the skin is burnt by the chemicals.

Disclosure of Invention

The utility model provides a safe and efficient chemical constant-pressure tank calibration device, which can effectively solve the problems that the prior liquid adding device is greatly influenced by factors such as pipeline resistance, valve opening, tank pressure fluctuation and the like in application, the pipeline and the valve are required to be checked regularly, the flow is required to be corrected frequently, meanwhile, the current operation mode has great potential safety hazard, personnel move inconveniently after wearing protective clothing, and the chemical is inevitably left on the protective clothing or shoes in the calibration process, so that the skin is burnt by the chemical.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a safe and efficient chemical constant pressure tank calibrating device, includes the workstation, the inboard bottom of workstation is provided with the bottom baffle, and the workstation inboard is located bottom baffle one side position department and is provided with the chemical cell body, the inboard back limit portion fixed mounting of workstation has the constant pressure tank body, the side of constant pressure tank body is provided with the scale mark;

the inner side edge of the working machine table is fixedly provided with a hollowed-out partition plate at the outer side of the constant-pressure tank body, the constant-pressure tank body is positioned at the inner side of the hollowed-out partition plate, and the front and the back of the hollowed-out partition plate are respectively embedded and fixedly connected with a transparent observation plate;

the top of the constant pressure tank body is connected with a constant pressure tank liquid inlet pipe, the liquid inlet end of the constant pressure tank liquid inlet pipe is positioned on the outer side of the workbench, the end part of the constant pressure tank liquid inlet pipe is positioned at the top of the constant pressure tank body and is provided with a control valve, the bottom of the constant pressure tank body is connected with a constant pressure tank liquid supplementing pipe, and the bottom of the constant pressure tank liquid supplementing pipe extends to the inner side of the chemical tank body.

Preferably, the bottom of the inner side of the working machine table is separated into chemical tank bodies through a bottom partition plate.

Preferably, the through groove is formed in the position, corresponding to the hollowed-out partition plate, of the back side of the working machine table, and the transparent observation plate on the back side of the hollowed-out partition plate is in fit connection with the inner side of the through groove.

Preferably, the end part of the constant pressure tank liquid supplementing pipe is detachably connected with the bottom of the constant pressure tank body through a detachable connecting structure;

the scale precision of the constant pressure tank body is 10ml, and the front and the back of the constant pressure tank body are respectively provided with scale marks.

Preferably, the outside bottom and the top position department of the constant voltage jar body all fixedly cup joint in the inboard of spacing ring seat, and fixed connection between the both sides tip of spacing ring seat and the fretwork baffle inner wall.

Preferably, the limiting ring seat is composed of a limiting sleeve ring and a fixed connecting rod, the constant-pressure tank body is limited and sleeved on the inner side of the fixed sleeve ring, and the end part of the fixed connecting rod is fixedly connected with the inner wall of the hollowed-out partition plate.

Compared with the prior art, the utility model has the beneficial effects that: the utility model has scientific and reasonable structure and safe and convenient use:

1. through the scale precision of the constant pressure jar body with the additional chemicals is adjusted to 10ml by 50ml to this personnel's use amount cup operation of omitting, and all draw the scale mark at the front portion and the rear portion of the constant pressure jar body, the precision is ml, the convenient scale information of observing the constant pressure jar body more clearly from the multi-angle, the constant pressure jar body sets up in the inside of workstation in general, the position of the inboard back-mounted constant pressure jar body of the workstation is set up to the fretwork state through the fretwork baffle, and shelter from with transparent observation board of transparent material at the fretwork area, the personnel can come the actual additional volume of the direct observation constant pressure jar body of rear portion through transparent observation board when the calibration and set up the difference between the additional volume, obtain the accuracy of the constant pressure jar body, and then the personnel gets into the workstation operation of omitting, thereby the potential safety hazard has been reduced, the safety of assurance personnel.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.

In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic structural view of the hollow partition board of the present utility model;

FIG. 3 is a schematic view of the structure of the constant pressure tank of the present utility model;

FIG. 4 is a schematic diagram of a current original calibration mode;

reference numerals in the drawings: 1. a working machine; 2. a bottom partition; 3. a chemical tank; 4. a constant pressure tank; 5. hollow partition boards; 6. a liquid inlet pipe of the constant pressure tank; 7. a liquid supplementing pipe of the constant pressure tank; 8. a transparent viewing plate; 9. scale marks; 10. a limiting ring seat; 11. and a control valve.

Description of the embodiments

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Examples: as shown in fig. 1-3, the utility model provides a technical scheme, a safe and efficient chemical constant pressure tank calibration device, which comprises a working machine table 1, wherein the working machine table 1 is a texturing and alkali throwing machine table in the manufacturing process of crystalline silicon solar cells, a bottom partition plate 2 is arranged at the bottom of the inner side of the working machine table 1, a chemical tank body 3 is arranged at the position of one side of the bottom partition plate 2 on the inner side of the working machine table 1, the chemical tank body 3 is separated by the bottom partition plate 2 on the bottom of the inner side of the working machine table 1, and liquid is conveniently discharged into the chemical tank body 3 when the precision of the constant pressure tank body 4 is calibrated, so that the calibration precision is convenient and fast, the constant pressure tank body 4 is fixedly arranged at the side part of the inner side back of the working machine table 1, the side of the constant pressure tank body 4 is provided with scale lines 9, the scale precision of the constant pressure tank body 4 is 10ml, and the front and back sides of the constant pressure tank body 4 are respectively marked with scale lines 9, so that the height of the liquid level inside the constant pressure tank body 4 can be conveniently and conveniently observed from the front side and the back sides of the constant pressure tank body 4;

the inner side edge of the working machine table 1 is fixedly provided with a hollowed-out partition plate 5 at the outer side of the constant-pressure tank body 4, the constant-pressure tank body 4 is positioned at the inner side of the hollowed-out partition plate 5, the front and the back of the hollowed-out partition plate 5 are embedded and fixedly connected with transparent observation plates 8, a through groove is formed at the position of the back side edge of the working machine table 1 corresponding to the hollowed-out partition plate 5, and the transparent observation plates 8 at the back of the hollowed-out partition plate 5 are in fit connection with the inner side of the through groove, so that scales of the constant-pressure tank body 4 can be observed more clearly from the back of the working machine table 1;

the top of the constant pressure tank body 4 is connected with a constant pressure tank liquid inlet pipe 6, the liquid inlet end of the constant pressure tank liquid inlet pipe 6 is positioned on the outer side of the workbench 1, the end part of the constant pressure tank liquid inlet pipe 6 is positioned at the top of the constant pressure tank body 4 and is provided with a control valve 11, the bottom of the constant pressure tank body 4 is connected with a constant pressure tank liquid supplementing pipe 7, the bottom of the constant pressure tank liquid supplementing pipe 7 extends to the inner side of the chemical tank body 3, the end part of the constant pressure tank liquid supplementing pipe 7 is detachably connected with the bottom of the constant pressure tank body 4 through a detachable connecting structure, the detachable connecting structure is in lock catch connection, and the end part of the constant pressure tank liquid supplementing pipe 7 is conveniently connected with and detached between the detachable connecting structure and the constant pressure tank body 4.

The outside bottom and the top position department of the constant voltage jar body 4 are all fixed cup joint in the inboard of spacing ring seat 10, and fixed connection between the both sides tip of spacing ring seat 10 and the fretwork baffle 5 inner wall, and spacing ring seat 10 comprises spacing lantern ring and fixed connecting rod jointly, and the spacing inboard of cup jointing in the fixed lantern ring of constant voltage jar body 4, and fixed connecting rod tip and fretwork baffle 5 inner wall fixed connection, conveniently come to be fixed connection in the inboard of fretwork baffle 5 with the constant voltage jar body 4 through spacing ring seat 10.

The working principle and the using flow of the utility model are as follows: the original calibration mode of the constant pressure tank for the chemicals needs to be corrected and calibrated for many times, the calibration frequency is about 1 month and 1 time, in the calibration process, a machine is entered, as shown in fig. 4, in the specific calibration process of the current calibration mode, a person manually pulls out the liquid supplementing pipe 7 of the constant pressure tank from the chemical tank body 3, so that the liquid outlet alignment precision of the liquid supplementing pipe 7 of the constant pressure tank is a measuring cup with the precision of 10m, the capacity is 500ML or even 1L, another person supplements 500ML of the chemicals in the operation page operation to observe whether the liquid outlet amount of the constant pressure tank body 4 is consistent with a set value, for example, the operation table sets 500ML, the constant pressure tank body 4 reaches only 450ML of the chemicals of the measuring cup, namely 50ML less, the above is inaccurate, and the current calibration mode is adopted;

after improvement, in the actual calibration process, the scale precision of the constant-pressure tank body 4 for supplementing chemicals is adjusted from 50ml to 10ml, so that the personnel consumption cup operation is omitted, for example, 500ml of operation table is set, and the liquid in the constant-pressure tank body 4 is pumped to the chemical tank body 3 through the constant-pressure tank liquid supplementing pipe 7 and can be also conveyed to an acid washing or alkali washing tank;

through transparent observation board 8 direct observation constant voltage jar scale mark 9 of the body 4, observe that constant voltage jar body 4 descends and surpass 500ml, the explanation just inaccurately, separate the installation with constant voltage jar body 4 through fretwork baffle 5, simultaneously through transparent observation board 8, make calibration personnel can behind workstation 1 see on the constant voltage jar body 4 scale mark 9 instruct can, thereby be convenient for calculate actual interpolation volume and set up the difference between the interpolation volume, obtain the accuracy of constant voltage jar body 4, omit personnel entering workstation 1 operation, the potential safety hazard has been reduced, guarantee personnel's safety.

Finally, it should be noted that: the foregoing is merely a preferred example of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (6)

1. The utility model provides a safe and efficient chemical constant pressure jar calibrating device, includes workstation (1), its characterized in that: the chemical tank is characterized in that a bottom partition plate (2) is arranged at the bottom of the inner side of the working machine table (1), a chemical tank body (3) is arranged at one side of the bottom partition plate (2) on the inner side of the working machine table (1), a constant-pressure tank body (4) is fixedly arranged at the edge of the back side of the inner side of the working machine table (1), and scale marks (9) are arranged on the side face of the constant-pressure tank body (4);

the inner side edge of the workbench (1) is fixedly provided with a hollowed-out partition plate (5) at the outer side of the constant-pressure tank body (4), the constant-pressure tank body (4) is positioned at the inner side of the hollowed-out partition plate (5), and the front and the back of the hollowed-out partition plate (5) are embedded and fixedly connected with a transparent observation plate (8);

the top of the constant pressure tank body (4) is connected with a constant pressure tank liquid inlet pipe (6), the liquid inlet end of the constant pressure tank liquid inlet pipe (6) is located on the outer side of the workbench (1), the end part of the constant pressure tank liquid inlet pipe (6) is located at the top of the constant pressure tank body (4) and is provided with a control valve (11), the bottom of the constant pressure tank body (4) is connected with a constant pressure tank liquid supplementing pipe (7), and the bottom of the constant pressure tank liquid supplementing pipe (7) extends to the inner side of the chemical tank body (3).

2. The safe and efficient chemical constant pressure tank calibration device according to claim 1, wherein: the bottom of the inner side of the workbench (1) is separated into chemical tank bodies (3) through bottom partition boards (2).

3. The safe and efficient chemical constant pressure tank calibration device according to claim 1, wherein: the back side of the workbench (1) is provided with a through groove at a position corresponding to the hollowed-out partition board (5), and a transparent observation board (8) at the back of the hollowed-out partition board (5) is in fit connection with the inner side of the through groove.

4. The safe and efficient chemical constant pressure tank calibration device according to claim 1, wherein: the end part of the constant-pressure tank liquid supplementing pipe (7) is detachably connected with the bottom of the constant-pressure tank body (4) through a detachable connecting structure;

the scale precision of the constant pressure tank body (4) is 10ml, and scale marks (9) are engraved on the front surface and the back surface of the constant pressure tank body (4).

5. The safe and efficient chemical constant pressure tank calibration device according to claim 1, wherein: the bottom and the top of the outer side of the constant pressure tank body (4) are fixedly sleeved on the inner side of the limiting ring seat (10), and the two side ends of the limiting ring seat (10) are fixedly connected with the inner wall of the hollow partition plate (5).

6. The safe and efficient chemical constant pressure tank calibration device according to claim 5, wherein: the limiting ring seat (10) is composed of a limiting sleeve ring and a fixed connecting rod, the constant-pressure tank body (4) is sleeved on the inner side of the fixed sleeve ring in a limiting mode, and the end portion of the fixed connecting rod is fixedly connected with the inner wall of the hollow partition board (5).