Quantitative liquid discharge system

Abstract

The utility model discloses a liquid quantitative discharge system, which belongs to the technical field of waste acid treatment and comprises a liquid storage tank, a liquid inlet, a liquid outlet and a liquid outlet. The outlet end of the injection pipeline is communicated with the liquid inlet; the inlet end of the liquid discharging pipeline is communicated with the liquid outlet; the liquid level detector is mounted at the top in the liquid storage tank and used for collecting the liquid level height; the conveying pump is mounted on the liquid discharging pipeline; a manual switch; the input end of the controller is electrically connected with the liquid level detector and the manual switch, and the output end of the controller is electrically connected with the conveying pump; the device can be used for automatically and quantitatively adding waste acid into the reaction container, is time-saving and labor-saving, is simple to operate, reduces the labor cost, can accurately control the discharge amount, ensures that the reaction is fully carried out, can conveniently and quickly adjust the height difference of the liquid level according to the field requirement, improves the production controllability, and improves the production efficiency. And the device is far away from a strong acid and alkali environment on site, so that the safety of operators is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste acid treatment technical field, concretely relates to a liquid quantitative discharge system. BACKGROUND

[0002] In the industrial production process of chemical plant, chemical fiber factory, metal surface treatment industry and electroplating industry and other industries, a large amount of industrial waste acid will be produced, if it is directly discharged, it will damage crops, destroy ecological environment, and even endanger human health, therefore, it needs to be uniformly transported to the sewage treatment station for centralized treatment.

[0003] And in the waste acid treatment process of the sewage treatment station, in order to guarantee that the waste acid and reaction reagent in the reaction container can be fully reacted, the amount of reagent and waste acid added in the first reaction needs to be quantitatively controlled.

[0004] However, the above-mentioned manual method is time-consuming and laborious, the operation is complex, the labor cost is high, and the manual estimation of discharge amount also has the problem of low accuracy, which cannot guarantee that the reaction is fully carried out. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a liquid quantitative discharge system, which solves the technical problems of high labor cost and inaccurate discharge amount in the prior art.

[0006] The utility model discloses a liquid quantitative discharge system, which comprises:

[0007] The liquid storage tank has a liquid inlet and a liquid outlet, and the liquid inlet is located at the upper part of the liquid storage tank, and the liquid outlet is located at the lower part of the liquid storage tank;

[0008] The injection pipeline is connected with the liquid inlet at the outlet end;

[0009] The liquid discharge pipeline is connected with the liquid outlet at the inlet end;

[0010] The liquid level detector is installed at the top of the liquid storage tank and is used for collecting the liquid level;

[0011] The delivery pump is installed on the liquid discharge pipeline;

[0012] The manual switch is connected with the liquid level detector and the delivery pump at the input end and the output end respectively.

[0013] The controller is electrically connected with the liquid level detector and the manual switch at the input end, and is electrically connected with the delivery pump at the output end.

[0014] The application can automatically add waste acid into the reaction container, which saves time and labor, is simple to operate, reduces labor cost, can accurately control the discharge amount, ensures sufficient reaction, can conveniently and quickly adjust the size of the liquid level difference according to the needs of the site, improves the controllability of production, is far away from the strong acid and alkali environment of the site, improves the safety of the operating personnel, and improves the controllability of production.

[0015] On the basis of the above technical solutions, the scheme of the application can be further improved as follows:

[0016] Preferably, it further comprises:

[0017] The communication module is electrically connected with the input end of the controller, used for receiving a remote control signal and sending it to the controller; by using the scheme, the operating personnel can start the system conveniently and quickly in the central control room, on the site or any other position, thereby improving the portability and emergency handling speed.

[0018] Preferably, it further comprises:

[0019] The HMI screen is electrically connected with the output end of the controller; by using the scheme, the parameters in the quantitative discharge process can be monitored in real time through the graphical interface, so that the operating condition can be controlled, and problems can be found and solved in time.

[0020] Preferably, it further comprises:

[0021] The one-way valve is installed on the liquid discharge pipeline and located at the rear end of the delivery pump; by using the scheme, the backflow of waste acid in the liquid discharge pipeline when the delivery pump stops can be avoided, so that the accuracy of quantitative discharge is ensured.

[0022] Preferably, it further comprises:

[0023] The first gate valve is installed on the injection pipeline and electrically connected with the output end of the controller; by using the scheme, the accuracy of quantitative discharge is ensured, and the stability of equipment operation is improved.

[0024] Preferably, it further comprises:

[0025] The second gate valve is installed on the liquid discharge pipeline and located at the front end of the delivery pump;

[0026] The third gate valve is installed on the liquid discharge pipeline and located at the rear end of the delivery pump; by using the scheme, the liquid discharge pipeline can be closed in an emergency, the safety of the equipment is improved, and the operation of maintenance, maintenance or component replacement is facilitated, thereby improving the use effect of the equipment.

[0027] Preferably, the manual switch has an automatic button, a start button and a close button; with the scheme, the operator can manually open or close the delivery pump remotely when needed, improving the flexibility of the equipment operation.

[0028] Preferably, the liquid level detector is an ultrasonic liquid level meter; with the scheme, the liquid level detector has high precision, non-contact, wide application range and good use effect.

[0029] Preferably, the delivery pump is a diaphragm pump; with the scheme, the delivery pump has the advantages of corrosion resistance, no leakage, strong adaptability and simple structure, stable delivery and good use effect.

[0030] Through the above technical scheme, the utility model realizes the following beneficial effects:

[0031] 1. The application can automatically add waste acid to the reaction container quantitatively, which saves time and labor, is simple to operate, reduces labor cost and can accurately control the discharge amount, ensures that the reaction proceeds fully, can conveniently and quickly adjust the size of the liquid level height difference according to the needs of the site, improves the controllability of production, and is far away from the strong acid and alkali environment of the site, improving the safety of the operator;

[0032] 2. The application can receive a remote control signal and send it to the controller through the communication module, so that the operator can start the system conveniently and quickly in the central control room, on site or any other position, thereby improving the portability and emergency handling speed;

[0033] 3. The application can monitor the parameters in the quantitative discharge process through the graphical interface in the central control room through the HMI screen, thereby fully controlling the operation condition to facilitate timely discovery and problem solving;

[0034] 4. The application installs the first gate valve on the injection pipeline and electrically connects it with the output end of the controller, avoiding the situation that the waste acid is injected into the liquid storage tank through the injection pipeline when the waste acid is quantitatively discharged into the reaction container, ensuring the accuracy of quantitative discharge and improving the stability of the equipment operation. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the specific embodiments of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0036] Figure 1The structure schematic diagram of the liquid quantitative discharging system is shown in the embodiment of the utility model.

[0037] Figure 2 For Figure 1 The principle block diagram of the controller in the liquid quantitative discharging system is shown.

[0038] Mark explanation:

[0039] 1, liquid storage tank, 2, injection pipeline, 3, liquid discharge pipeline, 4, liquid level detector, 5, delivery pump, 6, manual switch, 7, controller, 8, communication module, 9, HMI screen, 10, check valve, 11, first gate valve, 12, second gate valve, 13, third gate valve.

[0040] 101, liquid inlet, 102, liquid outlet, 601, automatic button, 602, start button, 603, close button. Specific implementation

[0041] The embodiment of the utility model technical scheme will be described in detail below. The following examples are only used to more clearly illustrate the technical scheme of the utility model, therefore only as an example, and cannot limit the protection scope of the utility model.

[0042] First of all, it needs to be pointed out that in the following description, some orientation words such as terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like involved in the technical scheme of the utility model are the meanings possessed by analogy with the normal orientation of the components in the liquid quantitative discharging system, only for the convenience of describing the utility model and simplifying the description, and are not indicative or suggestive of the device or element indicated must have a particular orientation, structure and operation, therefore cannot be understood as a limitation on the utility model.

[0043] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicative or suggestive of relative importance or implicit indication of the number of indicated technical features, therefore, the features limited by "first", "second" can be explicitly or implicitly include one or more of the features.

[0044] In the present application, unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected, can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0045] For better understanding of the above technical solutions, the above technical solutions will be described in detail below in conjunction with the description of the drawings and the specific embodiments.

[0046] Embodiments:

[0047] As shown in Figure 1 The embodiment of the application discloses a liquid quantitative discharge system, which automatically adds waste acid to the reaction container in a quantitative manner, and the specific structure comprises a liquid storage tank 1, an injection pipeline 2, a liquid discharge pipeline 3, a liquid level detector 4, a conveying pump 5, a manual switch 6 and a controller 7.

[0048] The liquid storage tank 1 has a liquid inlet 101 and a liquid outlet 102, and the liquid inlet 101 is located at the upper part of the liquid storage tank 1, and the liquid outlet 102 is located at the lower part of the liquid storage tank 1; in addition, the liquid storage tank 1 is preferably in a columnar structure, which is convenient for calculating the liquid level height difference according to the required discharge amount, and can be a cylindrical structure, a cuboid, a straight prism or other structures, without specific limitation.

[0049] The outlet end of the injection pipeline 2 is connected with the liquid inlet 101, and is used for injecting waste acid into the liquid storage tank 1.

[0050] The inlet end of the liquid discharge pipeline 3 is connected with the liquid outlet 102, and is used for discharging waste acid into the reaction container.

[0051] The liquid level detector 4 is installed at the top of the liquid storage tank 1, and is used for collecting the liquid level height.

[0052] The conveying pump 5 is installed on the liquid discharge pipeline 3, and is used for driving the waste acid in the liquid discharge pipeline 3 to be input into the next reaction container, so as to avoid accumulation due to weight and other factors.

[0053] The manual switch 6 is used for manual control by the operator, and is arranged in the central control room and / or the field.

[0054] The input end of the controller 7 is electrically connected with the liquid level detector 4 and the manual switch 6, and the output end is electrically connected with the conveying pump 5; the controller 7 is specifically a PLC controller, which has programmable operation ability, and has the characteristics of high reliability, high stability and high precision, and can work stably in a harsh environment.

[0055] The specific working mode of the application is as follows:

[0056] When it is needed to quantitatively discharge waste acid into the next reaction container, the operator starts the manual switch 6, and the manual switch 6 sends an automatic running signal to the controller 7;

[0057] After receiving the automatic running signal, the controller 7 controls the conveying pump 5 to start, starts to discharge waste acid into the reaction container, and continuously acquires the liquid level height collected by the liquid level detector 4;

[0058] The controller 7 calculates the final liquid level height according to the initially obtained liquid level height and the preset liquid level height difference value;

[0059] When the controller 7 subsequently obtains a liquid level height lower than or equal to the final liquid level height, the controller 7 controls the delivery pump 5 to be turned off, and the delivery of the waste acid into the reaction container is stopped.

[0060] It should be noted that, since the liquid storage tank 1 is a column structure, the liquid weight can be calculated according to the volume formula (container bottom area * liquid level height difference value = liquid volume) and the mass formula (volume * density = mass) of the column. Therefore, when the delivery amount needs to be adjusted, the corresponding liquid level height difference value can be calculated according to the above formula, and the program in the controller 7 can be modified accordingly.

[0061] Through the above setting, the waste acid can be automatically added into the reaction container in a quantitative manner, which saves time and effort, is simple to operate, reduces labor cost, and can accurately control the delivery amount, ensuring that the reaction is fully carried out. In addition, the size of the liquid level height difference can be easily and quickly adjusted according to the needs on site, improving the controllability of production, and further improving the safety of the operating personnel by keeping them away from the strong acid and alkali environment on site.

[0062] In some embodiments, as shown in Figure 1 and Figure 2 , the system further comprises:

[0063] The communication module 8 is electrically connected to the input end of the controller 7, and is used to receive a remote control signal and send the remote control signal to the controller 7.

[0064] It should be noted that the remote control signal can be sent by a mobile phone running a control app or by a remote controller or other mobile devices, and the specific implementation is not limited.

[0065] Through the above setting, the operating personnel can start the system conveniently and quickly in the central control room, on site, or at any other location, thereby improving the portability and emergency handling speed.

[0066] In some embodiments, as shown in Figure 1 and Figure 2 , the system further comprises:

[0067] The HMI screen 9 is electrically connected to the output end of the controller 7, and is arranged in the central control room, and is used to display data such as the liquid level height value, the liquid level change value, the cumulative measurement value, and the pump switch state in real time.

[0068] Through the above setting, the operating personnel can monitor various parameters in the quantitative delivery process in real time through the graphical interface in the central control room, thereby fully controlling the operating conditions to facilitate the timely discovery and solution of problems.

[0069] In some embodiments, as shown inFigure 1 and Figure 2 as shown, further comprising:

[0070] The one-way valve 10 is installed on the liquid discharge pipeline 3 and located at the rear end of the delivery pump 5, so as to avoid the backflow of waste acid in the liquid discharge pipeline 3 when the delivery pump 5 stops, thereby ensuring the accuracy of quantitative discharge.

[0071] In some embodiments, as shown in Figure 1 as shown, further comprising:

[0072] The first gate valve 11 is installed on the injection pipeline 2 and electrically connected with the output end of the controller 7.

[0073] When the controller 7 controls the delivery pump 5 to start, the first gate valve 11 is also controlled to close the injection pipeline 2; when the controller 7 controls the delivery pump 5 to stop, the first gate valve 11 is also controlled to open the injection pipeline 2.

[0074] Through the above setting, the situation that the waste acid is injected into the liquid storage tank 1 through the injection pipeline 2 when the waste acid is quantitatively discharged into the reaction container is avoided, the accuracy of quantitative discharge is ensured, and the stability of equipment operation is improved.

[0075] In some embodiments, as shown in Figure 1 as shown, further comprising:

[0076] The second gate valve 12 is installed on the liquid discharge pipeline 3 and located at the front end of the delivery pump 5, for controlling the waste liquid to enter the delivery pump 5.

[0077] The third gate valve 13 is installed on the liquid discharge pipeline 3 and located at the rear end of the delivery pump 5, for controlling the waste liquid to go to the next reaction container.

[0078] Through the above setting, the liquid discharge pipeline 3 can be closed in emergency, the safety of equipment is improved, and the operation of maintenance, maintenance or component replacement is facilitated, thereby improving the use effect of equipment.

[0079] In some embodiments, as shown in Figure 1 The manual switch 6 has an automatic button 601, a start button 602 and a stop button 603.

[0080] It can be understood that after the automatic button 601 is pressed by the operator, the manual switch 6 will send an automatic control signal to the controller 7; after the start button 602 is pressed by the operator, the manual switch 6 will send an opening signal to the controller 7, so that the controller 7 will directly control the delivery pump 5 to open; after the stop button 603 is pressed by the operator, the manual switch 6 will send a closing signal to the controller 7, so that the controller 7 will directly control the delivery pump 5 to stop.

[0081] Through the above setting, the operator can manually open or close the delivery pump 5 through the manual switch 6 when needed, thereby improving the flexibility of the equipment operation.

[0082] In some embodiments, as shown in Figure 1 The liquid level detector 4 is an ultrasonic liquid level meter, which determines the liquid level height by emitting ultrasonic pulses and receiving their reflection signals, has the advantages of high precision, non-contact, wide application range, etc.

[0083] In some embodiments, as shown in Figure 1 The delivery pump 5 is a diaphragm pump, which drives the diaphragm to move from the suction chamber side to the discharge chamber side by the action of compressed air or liquid to complete a pumping process, has the advantages of corrosion resistance, no leakage, strong adaptability and simple structure, stable delivery and good use effect.

[0084] In the specification of the utility model, a large number of specific details are explained. However, it can be understood that the embodiments of the utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of the specification.

[0085] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0086] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical scheme of the utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the utility model, and they should be covered in the scope of the claims and specification of the utility model.

Claims

1. A liquid quantitative discharge system, characterized in that: include: The liquid storage tank is a columnar structure having a liquid inlet and a liquid outlet, wherein the liquid inlet is located at the upper part of the liquid storage tank and the liquid outlet is located at the lower part of the liquid storage tank; an injection pipeline, wherein the outlet end is connected to the liquid inlet; a liquid discharge pipeline, the inlet end of which is connected to the liquid outlet; A liquid level detector is installed on the top of the liquid storage tank to collect the liquid level height; A delivery pump, installed on the discharge pipeline; Manual switch; The controller has an input end electrically connected to the liquid level detector and the manual switch, and an output end electrically connected to the delivery pump.

2. The liquid quantitative discharge system according to claim 1, characterized in that: Also includes: The communication module is electrically connected to the input terminal of the controller and is used for receiving a remote control signal and sending the signal to the controller.

3. The liquid quantitative discharge system according to claim 1, characterized in that: Also includes: The HMI screen is electrically connected to the output terminal of the controller.

4. The liquid quantitative discharge system according to claim 1, characterized in that: Also includes: A one-way valve is installed on the discharge pipeline and is located at the rear end of the delivery pump.

5. The liquid quantitative discharge system according to claim 1, characterized in that: Also includes: The first gate valve is installed on the injection pipeline and is electrically connected to the output end of the controller.

6. The liquid quantitative discharge system according to claim 1, characterized in that: Also includes: A second gate valve is installed on the discharge pipeline and is located at the front end of the delivery pump; The third gate valve is installed on the discharge pipeline and is located at the rear end of the delivery pump.

7. The liquid quantitative discharge system according to claim 1, characterized in that: The manual switch has an automatic button, a start button and a close button.

8. The liquid quantitative discharge system according to claim 1, characterized in that: The liquid level detector is an ultrasonic liquid level meter.

9. The liquid quantitative discharge system according to claim 1, characterized in that: The delivery pump is a diaphragm pump.

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