Automatic water supply and drainage system for laboratory

Abstract

The utility model relates to the field of water supply and drainage systems, and discloses an automatic water supply and drainage system for a laboratory, which comprises a washing sink mounted in the laboratory, a sewer pipe is arranged at the bottom of the washing sink, the bottom end of the sewer pipe is fixedly communicated with a detection box, a PH sensor is fixedly mounted on one side wall of the detection box, and the detection end of the PH sensor extends into the detection box. The two side walls of the detection box are fixedly communicated with an alkali liquor conveying pipe and an acid liquor conveying pipe respectively, an electromagnetic valve I is fixedly mounted on the alkali liquor conveying pipe, and an electromagnetic valve II is fixedly mounted on the acid liquor conveying pipe. The device has the following advantages and effects that the alkaline experiment sewage and the acid experiment sewage can be automatically and separately contained, collected and discharged, the situation that the alkaline experiment sewage and the acid experiment sewage are mixed together and react to generate harmful substances is avoided, and subsequent purification treatment on the alkaline experiment sewage and the acid experiment sewage is facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of water supply and drainage systems, and in particular to an automatic water supply and drainage system for laboratories. Background Art

[0002] The water supply and drainage system is a general term for the facilities that provide water and wastewater for people's life, production, municipal administration and fire fighting. It supplies water quantity and quality that meet different needs to various types of users, and is responsible for the collection, transportation and treatment of wastewater discharged by users, so as to eliminate the pollutants in the wastewater that are harmful to human health and protect the environment. Nowadays, the water supply and drainage system is an important and indispensable part of any building. In the laboratory, water is needed to wash and clean the utensils, and some experiments need to use water as a solution for dilution and other operations. Therefore, the laboratory is equipped with a water supply and drainage system to ensure the normal progress of the experiment. After searching, the patent document with the authorization announcement number CN218116638U announced an automatic water supply and drainage system for laboratories, including a water supply system, a drainage system and a sink cabinet, the water supply system includes a water supply main connected to an external water source, the water supply main is provided with a number of water supply branches connected to the double gooseneck faucets on the sink cabinet; the sink cabinet includes a sink, a cabinet body and a foot arranged under the cabinet body, the double gooseneck faucet is arranged on the sink and rotatably connected to the sink, and is connected to the drainage main of the drainage system through a drainage branch pipe at the lower part of the sink; the sink is placed on the cabinet body, the upper edge of the sink adopts a rounded transition, and the height of the front edge of the sink is lower than the rear edge and the side edge; the water supply branch pipe and the drainage branch pipe are both made of silicone hoses, and a connecting joint that can be quickly connected and disassembled with the sink is provided at the end of the silicone hose, which can quickly complete the connection and disassembly between the pipelines, conveniently carry out water supply and drainage, and at the same time facilitate regular cleaning and maintenance of the pipelines.

[0003] In actual use, it is found that the above-mentioned related schemes still have at least the following shortcomings: the experimental sewage generated during the experiment usually includes two types: alkaline experimental sewage and acidic experimental sewage, but it does not have the function of separately containing, collecting and discharging the alkaline experimental sewage and the acidic experimental sewage. When discharging the experimental sewage, the alkaline experimental sewage and the acidic experimental sewage are usually mixed together and discharged through the drainage pipe. However, when the alkaline experimental sewage and the acidic experimental sewage are mixed together, there is a phenomenon that harmful substances will react to generate harmful substances, which is not conducive to the subsequent purification of the alkaline experimental sewage and the acidic experimental sewage. Therefore, we propose an automatic water supply and drainage system for laboratories to solve the above problems. Utility Model Content

[0004] The purpose of the present application is to provide an automatic water supply and drainage system for a laboratory, which can automatically and separately contain and collect alkaline experimental sewage and acidic experimental sewage, so as to avoid the alkaline experimental sewage and the acidic experimental sewage from mixing together and reacting to produce harmful substances, which is beneficial to the subsequent purification treatment of the alkaline experimental sewage and the acidic experimental sewage respectively.

[0005] The above technical objectives of the present application are achieved through the following technical solutions: an automatic water supply and drainage system for a laboratory, comprising a washing pool installed in the laboratory, a downpipe is provided at the bottom of the washing pool, the bottom end of the downpipe is fixedly connected to a detection box, a pH sensor is fixedly installed on one side wall of the detection box, the detection end of the pH sensor extends into the detection box, an alkali solution delivery pipe and an acid solution delivery pipe are fixedly connected to the two side walls of the detection box respectively, a solenoid valve 1 is fixedly installed on the alkali solution delivery pipe, a solenoid valve 2 is fixedly installed on the acid solution delivery pipe, one end of the alkali solution delivery pipe away from the detection box is fixedly connected to an alkali solution sewage collection box, one end of the acid solution delivery pipe away from the detection box is fixedly connected to an acid solution sewage collection box, a controller is fixedly installed at the bottom of the detection box, the pH sensor, the solenoid valve 1, the solenoid valve 2 and the controller are electrically connected, and a cleaning component for cleaning the detection end of the pH sensor is provided on the detection box.

[0006] The present application is further configured as follows: the cleaning assembly includes two cross bars, a push plate, a spring, a brush ring and bristles. Two cross holes are provided on the inner wall of the detection box away from the PH sensor. One end of the two cross bars observes the corresponding cross holes respectively. The push plate is fixedly connected to one end of the two cross bars outside the detection box. One end of the spring is fixedly connected to one side wall of the push plate, and the other end of the spring is fixedly connected to one side outer wall of the detection box. The spring is located between the two cross bars. The brush ring is fixedly installed on one end of the two cross bars inside the detection box. The bristles are fixedly installed on the inner ring wall of the brush ring, and the center of the brush ring coincides with the axis of the detection end of the PH sensor.

[0007] The present application is further configured as follows: a sealing ring is fixedly mounted on the inner wall of the transverse hole, and the transverse rod is slidably sealed in cooperation with the transverse hole via the sealing ring.

[0008] The present application is further configured as follows: the diameter of the brush ring is larger than the diameter of the detection end of the pH sensor, and the vertical spacing between the inner wall of the brush ring and the detection end of the pH sensor is smaller than the length of the bristles.

[0009] The present application is further configured as follows: a lower sink with an open top is fixedly installed at the bottom of the washing pool, the lower sink is connected to the interior of the washing pool, a grid-shaped filter box with an open top is placed in the lower sink, and the top of the lower water pipe is fixedly connected to the bottom of the lower sink.

[0010] The present application is further configured as follows: two symmetrically distributed oblique reinforcement rods are fixedly mounted on the top of the detection box, and the top ends of the two oblique reinforcement rods are fixedly connected to the bottom of the washing tank.

[0011] The present application is further configured as follows: a sewage pipe is fixedly connected on one side wall of the alkaline sewage collection tank and on one side of the acid sewage collection tank, and sewage valves are fixedly installed on both sewage pipes.

[0012] The present application includes at least one of the following beneficial technical effects:

[0013] 1. In the present application, when the experimental utensils are washed in the washing tank or the experimental sewage is poured into the washing tank, the experimental sewage will flow downward into the detection box, and the pH sensor can be used to detect the pH value of the sewage entering the detection box. The pH value of the sewage detected by the pH sensor is transmitted to the controller. When the controller receives and obtains an alkaline data value (that is, the experimental sewage is alkaline sewage), the controller issues a command to control the solenoid valve 1 to open, and the solenoid valve 2 is in a closed state. The alkaline experimental sewage flows into the alkaline sewage collection tank through the alkaline solution delivery pipe. When the controller receives and obtains an acidic data value (that is, the experimental sewage is acidic sewage), the controller issues a command to control the solenoid valve 2 to open, and the solenoid valve 1 is in a closed state. In this state, the acidic experimental sewage flows into the acidic sewage collection box through the acid conveying pipe, and then the alkaline experimental sewage and the acidic experimental sewage can be automatically collected separately to avoid the alkaline experimental sewage and the acidic experimental sewage from mixing and reacting to generate harmful substances. In the later stage, by opening the drain valve on the alkaline sewage collection box, the alkaline experimental sewage in the alkaline sewage collection box can be discharged for subsequent sewage purification treatment, and by opening the drain valve on the acidic sewage collection box, the acidic experimental sewage in the acidic sewage collection box can be discharged for subsequent sewage purification treatment, achieving the effect of separate discharge of alkaline experimental sewage and acidic experimental sewage, which is beneficial to the subsequent purification of alkaline experimental sewage and acidic experimental sewage.

[0014] 2. The present application utilizes a cleaning assembly consisting of two cross bars, a push plate, a spring, a brush ring and bristles to facilitate brushing and cleaning the detection end of the pH sensor, thereby improving the accuracy of the pH sensor detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of this embodiment.

[0016] Figure 2 It is a schematic diagram of the main cross-sectional structure of this embodiment.

[0017] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure of part A.

[0018] Figure 4 It is a control block diagram of this embodiment.

[0019] In the figure, 1. washing pool; 2. drain pipe; 3. detection box; 4. PH sensor; 5. alkali solution delivery pipe; 6. acid solution delivery pipe; 7. solenoid valve 1; 8. solenoid valve 2; 9. alkali solution sewage collection box; 10. acid solution sewage collection box; 11. controller; 12. cross bar; 13. push plate; 14. spring; 15. brush ring; 16. brush bristles; 17. drain; 18. grid filter box; 19. oblique reinforcement rod; 20. sewage pipe; 21. sewage valve. DETAILED DESCRIPTION

[0020] The technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0021] See also Figure 1 , Figure 2 , Figure 3 and Figure 4The present application provides an automatic water supply and drainage system for a laboratory, comprising a washing pool 1 installed in the laboratory, a faucet (not shown in this article) installed on the washing pool 1, the washing pool 1 is used for washing experimental utensils and dumping experimental sewage, a downpipe 2 is arranged at the bottom of the washing pool 1, a detection box 3 is fixedly connected to the bottom end of the downpipe 2, a pH sensor 4 is fixedly installed on one side wall of the detection box 3, a detection end of the pH sensor 4 extends into the detection box 3, the pH sensor 4 is used to detect the pH value of the sewage entering the detection box 3, and an alkali solution delivery pipe 5 and an acid solution delivery pipe 6 are fixedly connected to the two side walls of the detection box 3, respectively. A solenoid valve 7 is fixedly installed on the alkali liquid delivery pipe 5, a solenoid valve 2 8 is fixedly installed on the acid liquid delivery pipe 6, an end of the alkali liquid delivery pipe 5 away from the detection box 3 is fixedly connected to an alkali liquid sewage collection box 9, the alkali liquid delivery pipe 5 is used to transport alkaline experimental sewage to the alkali liquid sewage collection box 9, and the alkali liquid sewage collection box 9 is used to collect alkaline experimental sewage, and an acid liquid delivery pipe 6 is fixedly connected to an acid liquid sewage collection box 10 at one end away from the detection box 3, and the acid liquid delivery pipe 6 is used to transport acidic experimental sewage to the acidic liquid sewage collection box 10, and the acidic liquid sewage collection box 10 is used to collect acidic experimental sewage. A controller is fixedly installed at the bottom of the detection box 3 11, the PH sensor 4, the solenoid valve 1 7, the solenoid valve 2 8 and the controller 11 are electrically connected, and the controller 11 is used to control the opening and closing of the solenoid valve 1 7 and the solenoid valve 2 8 respectively. It should be supplemented that the controller 11 adopts a PLC controller, and the sewage acidity and alkalinity data value detected by the PH sensor 4 is transmitted to the controller 11, and the controller 11 receives and obtains the acidity and alkalinity data value to make a judgment. When the controller 11 receives and obtains the alkaline data value, the controller 11 issues an instruction to control the solenoid valve 1 7 to open, and the alkaline experimental sewage can flow into the alkaline sewage collection tank 9 through the alkali liquid delivery pipe 5. When the controller 11 receives and obtains the acidity and alkalinity data value, the controller 11 issues an instruction to control the solenoid valve 1 7 to open, and the alkaline experimental sewage can flow into the alkaline liquid sewage collection tank 9 through the alkali liquid delivery pipe 5. When the data value is reached, the controller 11 sends out an instruction to control the solenoid valve 2 8 to open, and the acidic experimental wastewater can flow into the acid wastewater collection box 10 through the acid delivery pipe 6. When no experimental wastewater enters the detection box 3 and the PH sensor 4 cannot obtain the acid-base data value, the controller 11 will control the solenoid valve 1 7 and the solenoid valve 2 8 to be in a closed state, wherein the control method of the solenoid valve 1 7 and the solenoid valve 2 8 is automatically controlled by the controller 11, and the control circuit of the controller 11 can be realized by simple programming by technicians in this field, which is common knowledge in this field, so the control method and circuit connection method will not be explained in detail in this article.

[0022] In this embodiment, a cleaning assembly for cleaning the detection end of the pH sensor 4 is provided on the detection box 3, and the cleaning assembly includes two cross bars 12, a push plate 13, a spring 14, a brush ring 15 and bristles 16. Two transverse holes are provided on the inner wall of the detection box 3 away from the pH sensor 4, and one end of the two cross bars 12 respectively observes the corresponding transverse holes. The push plate 13 is fixedly connected to one end of the two cross bars 12 located outside the detection box 3, one end of the spring 14 is fixedly connected to one side wall of the push plate 13, and the other end of the spring 14 is fixedly connected to one side outer wall of the detection box 3. The spring 14 is located between the two cross bars 12, and the brush ring 15 is fixedly installed on one end of the two cross bars 12 located inside the detection box 3, and the bristles 16 are fixedly installed on the inner ring wall of the brush ring 15. The center of the brush ring 15 coincides with the axis of the detection end of the PH sensor 4, and the push plate 13 is used to conveniently drive the two cross bars 12, the brush ring 15 and the bristles 16 to move horizontally and linearly. The bristles 16 can be used to brush and clean the detection end of the PH sensor 4, thereby improving the accuracy of the detection result of the PH sensor 4. The elastic force of the spring 14 can be used to control the push plate 13, the two cross bars 12, the brush ring 15 and the bristles 16 to automatically reset. It should be supplemented that the bristles 16 can be made of PBT polyester bristles, which have the advantages of moderate hardness, good wear resistance, high acid and alkali resistance, high chemical stability and low water absorption. Therefore, when the detection end of the PH sensor 4 is brushed and cleaned, the detection end of the PH sensor 4 will not be damaged and has a long service life.

[0023] In this embodiment, in order to prevent the experimental sewage from seeping out and flowing out from the gap between the horizontal hole and the horizontal bar 12, a sealing ring is fixedly installed on the inner wall of the horizontal hole, and the horizontal bar 12 is slidably sealed with the horizontal hole through the sealing ring.

[0024] In this embodiment, in order to ensure that the detection end of the pH sensor 4 can smoothly pass through the brush ring 15 and effectively contact the bristles 16, the diameter of the brush ring 15 is larger than the diameter of the detection end of the pH sensor 4, and the vertical spacing between the inner wall of the brush ring 15 and the detection end of the pH sensor 4 is smaller than the length of the bristles 16.

[0025] In this embodiment, in order to allow the experimental sewage in the washing tank 1 to flow smoothly into the sewer pipe 2, and to intercept and filter the solid impurities carried in the experimental sewage, a sewer trough 17 with an open top is fixedly installed at the bottom of the washing tank 1, and the sewer trough 17 is connected to the interior of the washing tank 1. A grid-shaped filter box 18 with an open top is placed in the sewer trough 17, and the top of the sewer pipe 2 is fixedly connected to the bottom of the sewer trough 17.

[0026] In this embodiment, in order to improve the stability and reliability of the detection box 3 during long-term use, two symmetrically distributed oblique reinforcement rods 19 are fixedly installed on the top of the detection box 3, and the top ends of the two oblique reinforcement rods 19 are fixedly connected to the bottom of the washing pool 1.

[0027] In the present embodiment, in order to facilitate the discharge of the alkaline experimental sewage in the alkali liquid sewage collection box 9, and in order to facilitate the discharge of the alkaline experimental sewage in the acid liquid sewage collection box 10, so as to facilitate the subsequent purification of the alkaline experimental sewage and the acidic experimental sewage respectively, a sewage pipe 20 is fixedly connected on one side wall of the alkali liquid sewage collection box 9 and one side of the acid liquid sewage collection box 10, and sewage valves 21 are fixedly installed on the two sewage pipes 20. It should be supplemented that one end of the sewage pipe 20 on the alkali liquid sewage collection box 9 is fixedly connected to the water inlet pipe end of the alkaline experimental sewage purifier, and one end of the sewage pipe 20 on the acid liquid sewage collection box 10 is fixedly connected to the water inlet pipe end of the acidic experimental sewage purifier.

[0028] Through the above structure, the automatic water supply and drainage system for laboratories provided by the present application can automatically collect and discharge alkaline experimental sewage and acidic experimental sewage separately when in use, so as to avoid the alkaline experimental sewage and acidic experimental sewage mixing together to react and generate harmful substances, which is beneficial to the subsequent purification of alkaline experimental sewage and acidic experimental sewage respectively. In specific operation, when the experimenter washes the experimental utensils in the washing tank 1 or pours the experimental sewage into the washing tank 1, the experimental sewage will pass through the grid filter box 18, the sink 17 and the sewer pipe 2 in sequence and flow into the detection box 3. The pH sensor 4 can be used to detect the pH value of the sewage entering the detection box 3. The pH value of the sewage detected by the pH sensor 4 is transmitted to the controller 11. When the controller 11 receives and obtains the alkaline data value (that is, the experimental sewage is alkaline sewage), the controller 11 sends an instruction to control the solenoid valve 7 to open. At this time, the solenoid valve 2 8 is in a closed state, and the alkaline experimental sewage can flow into the alkaline sewage collection box 9 through the alkaline liquid delivery pipe 5. When the controller 11 receives and obtains the acidic data value (that is, the experimental sewage is acidic sewage), the controller 11 issues an instruction to control the solenoid valve 2 8 to open. At this time, the solenoid valve 1 7 is in a closed state, and the acidic experimental sewage can flow into the acid sewage collection box 10 through the acid liquid delivery pipe 6. When no experimental sewage enters the detection box 3 and the PH sensor 4 cannot obtain the acid-base data value, the controller 11 will control the solenoid valve 1 7 and the solenoid valve 2 8 to be in a closed state. Later, by opening the drain valve 21 on the alkaline sewage collection box 9, the alkaline experimental sewage in the alkaline sewage collection box 9 can be discharged for subsequent sewage purification treatment, and by opening the drain valve 21 on the acid sewage collection box, the acidic experimental sewage in the acid sewage collection box can be discharged for subsequent sewage purification treatment;

[0029] By regularly pushing out the push plate 13 to move toward the detection box 3, the push plate 13 drives the two cross bars 12, the brush ring 15 and the bristles 16 to move horizontally and linearly. At this time, the spring 14 is gradually compressed to generate elastic force, and the detection end of the PH sensor 4 will pass through the brush ring 15 and contact the bristles 16. The bristles 16 can be used to brush and clean the detection end of the PH sensor 4 to keep the detection end of the PH sensor 4 clean. By loosening the push plate 13, under the elastic force of the spring 14, the push plate 13, the two cross bars 12, the brush ring 15 and the bristles 16 can be controlled to automatically reset, thereby facilitating the brushing and cleaning of the detection end of the PH sensor 4, and improving the accuracy of the detection result of the PH sensor 4.

Claims

1. An automatic water supply and drainage system for a laboratory, characterized in that: The invention comprises a washing pool (1) installed in a laboratory, wherein a water pipe (2) is arranged at the bottom of the washing pool (1), the bottom end of the water pipe (2) is fixedly connected to a detection box (3), a pH sensor (4) is fixedly installed on one side wall of the detection box (3), the detection end of the pH sensor (4) extends into the detection box (3), and an alkali liquid delivery pipe (5) and an acid liquid delivery pipe (6) are respectively fixedly connected on the two side walls of the detection box (3), the alkali liquid delivery pipe (5) is fixedly installed with a solenoid valve (7), and the acid liquid delivery pipe (6) is fixedly connected to the acid liquid delivery pipe (6). A second solenoid valve (8) is fixedly mounted on the top; one end of the alkali liquid delivery pipe (5) away from the detection box (3) is fixedly connected to an alkali liquid wastewater collection box (9); one end of the acid liquid delivery pipe (6) away from the detection box (3) is fixedly connected to an acid liquid wastewater collection box (10); a controller (11) is fixedly mounted on the bottom of the detection box (3); the pH sensor (4), the first solenoid valve (7), the second solenoid valve (8) and the controller (11) are electrically connected; and a cleaning component for cleaning the detection end of the pH sensor (4) is provided on the detection box (3).

2. The automatic water supply and drainage system for a laboratory according to claim 1, characterized in that: The cleaning assembly comprises two cross bars (12), a push plate (13), a spring (14), a brush ring (15) and bristles (16). Two transverse holes are provided on the inner wall of a side of the detection box (3) away from the pH sensor (4). One end of the two cross bars (12) respectively observes the corresponding transverse holes. The push plate (13) is fixedly connected to one end of the two cross bars (12) located outside the detection box (3). One end of the spring (14) is fixedly connected to one side wall of the push plate (13). The other end of the spring (14) is fixedly connected to one side outer wall of the detection box (3). The spring (14) is located between the two cross bars (12). The brush ring (15) is fixedly mounted on one end of the two cross bars (12) located inside the detection box (3). The bristles (16) are fixedly mounted on the inner ring wall of the brush ring (15). The center of the brush ring (15 coincides with the axis of the detection end of the pH sensor (4).

3. The automatic water supply and drainage system for a laboratory according to claim 2, characterized in that: A sealing ring is fixedly mounted on the inner wall of the transverse hole, and the transverse rod (12) is slidably sealed with the transverse hole via the sealing ring.

4. The automatic water supply and drainage system for a laboratory according to claim 2, characterized in that: The diameter of the brush ring (15) is larger than the diameter of the detection end of the pH sensor (4), and the vertical spacing between the inner wall of the brush ring (15) and the detection end of the pH sensor (4) is smaller than the length of the bristles (16).

5. The automatic water supply and drainage system for a laboratory according to claim 1, characterized in that: A lower water tank (17) with an open top is fixedly installed at the bottom of the washing tank (1); the lower water tank (17) is connected to the interior of the washing tank (1); a grid-shaped filter box (18) with an open top is placed in the lower water tank (17); and the top end of the lower water pipe (2) is fixedly connected to the bottom of the lower water tank (17).

6. The automatic water supply and drainage system for a laboratory according to claim 1, characterized in that: Two symmetrically distributed oblique reinforcement rods (19) are fixedly mounted on the top of the detection box (3), and the top ends of the two oblique reinforcement rods (19) are fixedly connected to the bottom of the washing tank (1).

7. The automatic water supply and drainage system for a laboratory according to claim 1, characterized in that: A sewage pipe (20) is fixedly connected to one side wall of the alkaline sewage collection tank (9) and one side of the acid sewage collection tank (10), and a sewage valve (21) is fixedly installed on both sewage pipes (20).

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