Automatic chemical liquid supply equipment

Abstract

The utility model discloses automatic chemical liquid supply equipment which comprises a tank body, a stirring paddle with blades located in the bottom wall area of the tank body rotatably penetrates through the middle position of the top of the tank body, and a volute communicated with the interior of the tank body through a composite pipe is arranged above the tank body. The chemical liquid aeration device has the beneficial effects that gas can be conveyed to the bottom wall of the tank body through the arranged fan to realize aeration treatment on chemical liquid, and meanwhile, the gas can drive the impeller to rotate when flowing through the volute and drives the stirring paddle to synchronously rotate through the gear set, so that the chemical liquid in the tank body is fully stirred, and the chemical liquid in the tank body is uniformly stirred. The aeration and stirring combined dual effect can obviously promote the rapid flow of the chemical liquid, effectively prevent the occurrence of layering and precipitation phenomena, ensure the uniform distribution of the components in the liquid, and further improve the supply stability and effect of the chemical liquid.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical supply equipment technical field especially relates to chemical liquid automatic supply equipment. BACKGROUND

[0002] Chemical liquid automatic supply equipment is widely used in chemical industry, pharmacy, electronics, food industry and other industries, and is used for accurately conveying various chemical liquids such as acid, alkali, solvent and reagent.The core function of these equipment is to ensure that the chemical liquid maintains stable quality and concentration during conveying to meet the requirements of production process.

[0003] However, the existing part of supply equipment has deficiencies when conveying chemical liquid.Many chemical liquids are composed of multiple components, such as organic phase / water phase mixed solution, suspension or emulsion.Due to the difference in physical properties such as density and solubility of each component, natural stratification phenomenon is easy to occur after long-term standing.For example, metal ions and complexing agents in electroplating liquid may cause stratification due to concentration gradient.The existing supply equipment is difficult to eliminate the separation state of components when conveying such stratified liquid, resulting in that the concentration gradient of key components in the conveying medium exceeds the process allowable range (for example, the deviation of metal ion concentration in electroplating liquid is ± 15%), which directly causes the imbalance of subsequent reaction system ratio, and finally causes the decrease of product qualification rate or the out-of-control of process parameters. SUMMARY

[0004] This part aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments.In this part and the abstract of the specification and the utility model name of the application, some simplification or omission may be made to avoid obscuring the purpose of this part, the abstract of the specification and the utility model name, and such simplification or omission cannot be used to limit the scope of the utility model.

[0005] In view of the above problems of chemical liquid automatic supply equipment, the utility model is proposed.

[0006] To solve the above technical problems, the utility model provides the following technical scheme: a chemical liquid automatic supply equipment, comprising a tank body, a stirring paddle with blades located in the bottom wall area of the tank body is rotatably penetrated in the central position of the top of the tank body;

[0007] The upper portion of the tank body is provided with a volute communicating with the inside of the tank body through a composite pipe, and the bottom end opening of the composite pipe is arranged along the tangential direction of the blade rotation of the stirring paddle;

[0008] The volute is rotatably connected with an impeller, the rotating shaft of the impeller penetrates to the outside of the volute and is drivingly connected with the stirring paddle through a gear set;

[0009] Further comprising a fan, the fan is communicated with the volute, and is used for conveying gas into the volute;

[0010] Wherein, the gas flows through the volute to drive the impeller to rotate, and then is introduced into the bottom of the tank through the composite pipe to form aeration and impact the upper blade of the stirring paddle to assist accelerating the stirring.

[0011] As a preferred scheme of the chemical liquid automatic supply equipment, the distance between the bottom end face of the composite pipe and the rotating path of the end of the stirring paddle blade is 3-5cm.

[0012] As a preferred scheme of the chemical liquid automatic supply equipment, a three-way valve is arranged above the tank, and the same air inlet pipe is communicated between the side opening of the three-way valve and the volute.

[0013] As a preferred scheme of the chemical liquid automatic supply equipment, the air outlet end of the fan is provided with an air injection pipe communicated with the top opening of the three-way valve, and the air inlet end of the fan is provided with an air suction pipe, and the bottom end of the air suction pipe extends to the top wall area in the tank.

[0014] As a preferred scheme of the chemical liquid automatic supply equipment, a delivery pump is further arranged above the tank, and the two ports of the delivery pump are respectively provided with an external connecting pipe and an elbow pipe, and the external connecting pipe is communicated with the side opening of the three-way valve.

[0015] As a preferred scheme of the chemical liquid automatic supply equipment, two liquid level sensors distributed above and below are arranged on the outer side of the tank, and a liquid feeding pipe is communicated with the top of the tank.

[0016] The beneficial effects of the chemical liquid automatic supply equipment are as follows: the fan can deliver gas to the bottom wall position of the tank to realize aeration treatment of the chemical liquid. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 It is a front structure schematic view of the present application.

[0019] Figure 2 It is the back structure schematic view of the utility model.

[0020] Figure 3 It is the related structure schematic view of the volute and impeller in the utility model.

[0021] Figure 4 It is the related structure schematic view of the stirring paddle and gear set in the utility model.

[0022] BRIEF DESCRIPTION OF DRAWINGS: 1, tank body; 2, stirring paddle; 3, volute; 31, composite pipe; 32, air inlet pipe; 4, impeller; 5, gear set; 6, fan; 61, gas injection pipe; 62, suction pipe; 7, delivery pump; 71, external pipe; 72, elbow; 8, three-way valve; 9, liquid level sensor; 10, liquid filling pipe. DETAILED DESCRIPTION

[0023] In order to make the above object, features and advantages of the utility model more apparent, below, specific embodiment of the utility model is described in detail with the drawings of the specification.

[0024] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description, and those skilled in the art can make similar generalization without departing from the connotation of the utility model, therefore the utility model is not limited by the specific embodiments disclosed below.

[0025] Secondly, the "one embodiment" or "embodiment" referred to here means that specific features, structures or characteristics can be contained in at least one implementation of the utility model. In this specification, "in one embodiment" does not mean the same embodiment, nor is it an independent or alternative embodiment that excludes other embodiments.

[0026] Thirdly, the utility model is described in detail in conjunction with the schematic view, and when the embodiments of the utility model are described in detail, for the convenience of description, the sectional view of the device structure will be partially enlarged without general proportion, and the schematic view is only an example, which should not limit the scope of protection of the utility model here. In addition, three-dimensional spatial dimensions including length, width and depth should be included in actual manufacture.

[0027] REFERENCE Figures 1-4For an embodiment of the utility model, provide chemical liquid automatic supply equipment, it includes jar body 1, the top central position of jar body 1 rotates and is penetrated with vane and is located the stirring paddle 2 of jar body 1 bottom wall area, the outside of jar body 1 is provided with two up and down distribution liquid level sensor 9, the top of jar body 1 is connected with liquid adding pipe 10, liquid level sensor 9 is used for monitoring the highest liquid level and the lowest liquid level in jar body 1, and the distance between the highest liquid level and the top wall of jar body 1 can accommodate enough air, liquid adding pipe 10 is used for adding chemical liquid to the inside of jar body 1 for external device.

[0028] The upper portion of jar body 1 is provided with a volute 3 in communication with the interior of jar body 1 through a composite pipe 31, and the bottom end opening of the composite pipe 31 is disposed along the tangential direction of rotation of the blades of the stirring paddle 2, the distance from the bottom end face of the composite pipe 31 to the rotating path of the tips of the blades of the stirring paddle 2 is 3-5 cm, and after the gas is ejected from the composite pipe 31, it contacts the transverse face of the blades of the stirring paddle 2, thereby being able to push the blades to rotate at a higher speed and improve the stirring efficiency of the chemical liquid.

[0029] The volute 3 is rotatably connected with an impeller 4, the rotating shaft of the impeller 4 penetrates to the outside of the volute 3 and is drivingly connected with the stirring paddle 2 through a gear set 5, the gear set 5 can adopt gears that mesh with each other or adopt a combination of a chain and a sprocket for transmission, in addition, the diameter of the gear or sprocket mounted on the rotating shaft of the impeller 4 is larger than the diameter of the gear or sprocket mounted on the stirring paddle 2, thereby forming a transmission mode of a large gear driving a small gear and improving the rotating speed of the stirring paddle 2.

[0030] Further comprising a fan 6 in communication with the volute 3 for delivering gas into the volute 3;

[0031] Wherein, after the gas flows through the volute 3 to drive the impeller 4 to rotate, it is introduced into the bottom of the jar body 1 through the composite pipe 31 to form aeration and impact the blades of the stirring paddle 2 to assist in accelerating the stirring.

[0032] The upper portion of the jar body 1 is provided with a three-way valve 8, the side opening of the three-way valve 8 is in communication with the same air inlet pipe 32 as the volute 3, the gas outlet end of the fan 6 is provided with a gas injection pipe 61 in communication with the top end opening of the three-way valve 8, the gas inlet end of the fan 6 is provided with a gas suction pipe 62, the bottom end of the gas suction pipe 62 extends to the top wall area in the jar body 1, and the upper portion of the jar body 1 is further provided with a delivery pump 7, two ports of the delivery pump 7 are respectively provided with an external connection pipe 71 and an elbow pipe 72, and the external connection pipe 71 is in communication with the side opening of the three-way valve 8.

[0033] In addition, the fan 6, the delivery pump 7, the three-way valve 8 and the liquid level sensor 9 are all connected with a background control system (not shown) by wires, for realizing the effect of automatic supply when the subordinate equipment needs chemical liquid.

[0034] Working principle: when the lower equipment needs to be transported with chemical liquid, control the three-way valve 8 to make the air inlet pipe 32 and the injection pipe 61 communicate, first start the fan 6, the fan 6 transports the upper layer air in the tank body 1 to the volute 3 through the air suction pipe 62, the injection pipe 61 and the air inlet pipe 32, and then returns to the bottom inner wall area of the tank body 1 through the composite pipe 31, and the chemical liquid is aerated, at the same time, the gas flowing in the volute 3 can drive the impeller 4 to rotate, the impeller 4 drives the stirring paddle 2 to rotate through the gear set 5 on the shaft, at this time, the stirring paddle 2 rotates synchronously, and the gas from the composite pipe 31 can also push the upper blade of the stirring paddle 2 to rotate, so as to speed up the rotating speed of the stirring paddle 2 and improve the stirring efficiency of the chemical liquid. After completing the stirring work, control the three-way valve 8 to make the air inlet pipe 32 and the elbow pipe 72 communicate, close the fan 6 and start the delivery pump 7, the delivery pump 7 absorbs water in the tank body 1 through the elbow pipe 72, the air inlet pipe 32 and the composite pipe 31, so that the chemical liquid is supplied to the lower equipment through the external pipe 71, in the process, the stirring paddle 2 can continue to stir the chemical liquid in the tank body 1 when the chemical liquid flows through the volute 3, so that the chemical liquid at the bottom opening of the composite pipe 31 flows continuously, effectively preventing the stratification and precipitation phenomenon, ensuring the uniform distribution of the internal components of the liquid, and further improving the stability and effect of the chemical liquid supply.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced without departing from the spirit and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. An automatic chemical liquid supply apparatus, characterized by, It includes a tank body (1), the top of which is centrally provided with a rotating stirring paddle (2) with blades located at the bottom wall area of the tank body (1); The upper part of the tank body (1) is provided with a volute (3) in communication with the inside of the tank body (1) through a composite pipe (31), and the bottom opening of the composite pipe (31) is arranged along the tangential direction of the blade rotation of the stirring paddle (2); The volute (3) is rotatably connected with an impeller (4), the rotating shaft of which penetrates out of the volute (3) and is drivingly connected with the stirring paddle (2) through a gear set (5); It also includes a fan (6) in communication with the volute (3) for conveying gas into the volute (3); Wherein, the gas flowing through the volute (3) drives the impeller (4) to rotate, and then is introduced into the bottom of the tank body (1) through the composite pipe (31) to form aeration and impact the upper blade of the stirring paddle (2) to assist in accelerating the stirring.

2. The chemical liquid automatic supply apparatus according to claim 1, characterized by: The distance between the bottom end surface of the composite pipe (31) and the rotating path of the end of the blade of the stirring paddle (2) is 3-5 cm.

3. The chemical liquid automatic supply apparatus according to claim 2, characterized by: The upper part of the tank body (1) is provided with a three-way valve (8), and the same gas inlet pipe (32) is in communication between the side opening of the three-way valve (8) and the volute (3).

4. The chemical liquid automatic supply apparatus according to claim 3, characterized by: The gas outlet end of the fan (6) is provided with a gas injection pipe (61) in communication with the top opening of the three-way valve (8), and the gas inlet end of the fan (6) is provided with a gas suction pipe (62), the bottom end of which extends to the top wall area of the tank body (1).

5. The chemical liquid automatic supply apparatus according to claim 4, characterized by: The upper part of the tank body (1) is also provided with a delivery pump (7), both ends of which are provided with an external connecting pipe (71) and an elbow pipe (72), respectively, and the external connecting pipe (71) is in communication with the side opening of the three-way valve (8).

6. The chemical liquid automatic supply apparatus according to claim 1, characterized by: The outer side of the tank body (1) is provided with two liquid level sensors (9) distributed above and below, and the top of the tank body (1) is in communication with a liquid feeding pipe (10).

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