Novel laboratory wastewater treatment equipment

Abstract

The novel laboratory wastewater treatment equipment comprises an electromagnetic valve, a water level detection switch, a control circuit and a wastewater bottle mechanism, the upper end of the water tank water outlet pipe is connected with the lower end of a first electromagnetic valve; a flushing pipe is mounted at the upper end of the first electromagnetic valve; the lower portion of a waste water pipe at the lower end of the water tank is connected with the upper end of a second electromagnetic valve, the lower end of the second electromagnetic valve is connected with a connecting pipe, an upper magnet ring is installed at the lower end of the connecting pipe, and a water level detection switch is installed at the side end of the waste water pipe. A lower magnet ring is mounted at the upper end of a liquid inlet pipe of the wastewater bottle body; a sealing bin is arranged at the lower end of the wastewater bottle body; the electric heating pipe is mounted in the sealing bin; and the control circuit is arranged in the element box. The waste water bottle can be sealed after entering the waste water bottle, and can be automatically and electrically heated to sterilize after reaching a certain amount, so that the potential safety hazard to the body health of people due to the fact that pathogenic bacteria in the waste water cannot be treated and float in the air is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of laboratory auxiliary equipment, in particular to a novel laboratory wastewater treatment device. Background Technique

[0002] In various physical and chemical experiments or tests in the laboratory, it is inevitable that the laboratory will generate various wastewaters (such as wastewaters used for flushing test equipment or test samples in medical tests).

[0003] The authorized patent with the patent number "202021289726.9" and the patent name "Laboratory Wastewater Treatment Equipment" in China records that "it solves the problem that the water inlet pipes of existing laboratory wastewater treatment equipment are all installed outside, which is easy to be kicked by users inadvertently, resulting in the deviation of the water inlet pipe." As can be seen from the above, although the comparative patent achieves the described invention technical effect, due to structural limitations, like other equipment in this field, it still has the following technical defects. When used for the treatment of medical experiment and test wastewaters, the wastewaters are generally directly discharged through sewers, etc. When the wastewaters contain pathogenic bacteria harmful to the human body, there is a chance that people will come into contact with the pathogenic bacteria and get sick. Another way to treat medical wastewaters is to collect the wastewaters uniformly and then carry out harmless treatment. This method solves the problem caused by the direct discharge of pathogenic bacteria to a certain extent. However, when actually operating on the experimental bench, the wastewaters directly enter the lower waste water bottles, etc. through the sink. In this way, since the waste water bottles (waste water tanks), sinks, etc. are directly connected to the atmosphere, there is still a chance that the pathogenic bacteria will float with the air, which will have an adverse impact on the physical health of including experiment and test personnel (if the waste water bottle caps are opened before pouring the waste water each time and closed after pouring, it will bring inconvenience to the experiment and test personnel). Considering the above factors, there is still room for technical improvement in the current laboratory wastewater treatment equipment. Content of the Utility Model

[0004] The utility model provides a special use for medical laboratories, etc. After each experiment and test personnel pour waste water into the special sink on the experimental bench, the water valve will open for a period of time to wash the waste water. After the waste water enters the waste water bottle, the upper end will be closed, and when it reaches a certain amount, it will automatically heat and disinfect, preventing the safety hazards brought by the ineffective treatment of pathogenic bacteria in the waste water and floating into the air to people's physical health, and overcoming the disadvantages described in the background due to the limitations of the structure and function of the existing laboratory wastewater treatment equipment.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] New type laboratory wastewater treatment equipment, including solenoid valves and water level detection switches, is characterized in that it also has a control circuit and a wastewater bottle mechanism; there are at least two solenoid valves, the upper end of the water outlet pipe of the sink on the experimental bench is connected to the lower end of the first solenoid valve, and a flushing pipe is installed at the upper end of the first solenoid valve; a wastewater pipe is installed at the lower end of the sink, the lower end of the wastewater pipe is connected to the upper end of the second solenoid valve, the lower end of the second solenoid valve is connected to a connecting pipe, a upper magnet ring is installed at the lower end of the connecting pipe, the water level detection switch is installed outside the side end of the wastewater pipe and its probe is located inside the wastewater pipe; the wastewater bottle mechanism includes a wastewater bottle body, a pressure switch, an electric heating pipe, a water level switch A and a temperature switch, the wastewater bottle body is installed with a liquid inlet pipe, and a lower magnet ring is installed at the upper end of the liquid inlet pipe; the pressure switch is installed on one side of the upper end of the wastewater bottle body, the water level switch A and the temperature switch are respectively installed on both side ends of the wastewater bottle body, and the probe of the water level switch A and the temperature sensing head of the temperature switch are located inside the wastewater bottle body; a sealed chamber is installed at the lower end of the wastewater bottle body, and the electric heating pipe is installed inside the sealed chamber; the control circuit is installed in an element box, and the element box is installed at the side end of the experimental bench; the signal output ends of the temperature switch, the water level switch and the water level switch A are respectively electrically connected to the multiple signal input ends of the control circuit, and the power output end of the control circuit is electrically connected to the power input end of the electric heating pipe.

[0007] Further, the lower end of the upper magnet ring and the upper end of the lower magnet ring have opposite polarities and the same outer diameter, and a sealing ring is installed at the upper end of the lower magnet ring.

[0008] Further, the middle part of the connecting pipe is of a split structure, a hose is installed at the lower end of the upper section connecting pipe and the upper end of the lower section connecting pipe, and the wastewater bottle body is placed in the storage bin of the experimental bench.

[0009] Further, the height of the lower end of the upper magnet ring is lower than the height of the upper end of the lower magnet ring, and the lower end of the upper magnet ring is attracted to the upper end of the lower magnet ring.

[0010] Further, the control circuit includes a relay, a time control switch, an alarm lamp and a buzzer which are electrically connected. The negative power input end and the negative trigger signal input end of the time control switch are connected to the negative power input end of the buzzer, the negative power input end of the relay and the negative power input end of the alarm lamp. The positive power input end of the alarm lamp is connected to the positive power input end of the relay.

[0011] Further, the solenoid valve is a normally closed valve core solenoid valve.

[0012] The beneficial effects of the present utility model compared with the prior art are as follows: (1) After the experimenter pours wastewater into the dedicated wastewater tank of the experimental bench each time, when the water level detection switch detects it, the control mechanism will turn on the tap water for a period of time to flush the wastewater. After the wastewater enters the wastewater bottle, the upper end will be sealed, and when it reaches a certain amount, it will automatically be electrically heated and disinfected, preventing the potential safety hazards to people's physical health caused by the ineffective treatment of pathogenic bacteria in the wastewater and their floating into the air. (2) Since the wastewater bottle body and the electric heating mechanism are magnetically attracted, it is convenient to achieve the sealed connection and separation of the two, bringing convenience to the subsequent treatment of the disinfected wastewater by the staff. Brief Description of the Drawings

[0013] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0014] Figure 1 It is a schematic structural diagram of the present utility model installed on the test bench.

[0015] Figure 2 It is a partial structural schematic diagram of the present utility model.

[0016] Figure 3 It is a circuit diagram of the present utility model. Detailed Embodiment

[0017] Figure 1 、 2, as shown in Figures 3, the new laboratory wastewater treatment equipment includes a power supply mechanism N1, solenoid valves K1 and K2, a water level detection switch N2, a wastewater bottle mechanism, and also has a control circuit 8; there are two solenoid valves. The upper end of the water outlet pipe 3 (the lower end is connected to the tap water pipe) at the rear end of the wastewater tank 2 on the experimental table 1 is threadedly connected to the lower end interface of the first solenoid valve K1. The upper end interface of the first solenoid valve K1 is threadedly installed with a "┌"-shaped flushing pipe 4, and the lower end of the flushing pipe 4 is located in the middle of the upper end of the wastewater tank 2; the middle height of the lower end of the wastewater tank 2 is lower than the height of the surrounding area, and a wastewater pipe 5 is vertically welded to the outer middle of the lower end of the wastewater tank 2. The lower end of the wastewater pipe 5 is threadedly connected to the upper end interface of the second solenoid valve K2. The lower end interface of the second solenoid valve K2 is threadedly connected to the upper end of a connecting pipe 6. The lower end of the connecting pipe 6 is welded with an annular hollow upper sealing plate 61. An annular hollow upper permanent magnet ring 62 is adhesively bonded to the lower end of the sealing plate. There is an opening in the middle of the rear side end of the wastewater pipe 5. The housing of the water level detection switch N2 is hermetically installed in the opening, and its probe is located inside the wastewater pipe 5; the wastewater bottle mechanism includes a wastewater bottle body 71, a pressure switch 72, an electric heating tube JR (a stainless steel sheathed U-shaped dry-burning electric heating tube with a power of 1.5 KW), a water level switch AN4, and a temperature switch W1. An inlet pipe that communicates with its interior is welded to the outer middle of the upper end of the wastewater bottle body 71. An annular hollow lower sealing plate 73 is welded to the outer upper end of the inlet pipe. An annular hollow lower permanent magnet ring 74 is adhesively bonded to the upper end of the lower sealing plate 73; a branch pipe that communicates with its interior is welded to the outer middle of the upper left side of the wastewater bottle body 71. The upper end of the branch pipe is connected to the lower inlet of the pressure switch 72 through a pipe joint. There are openings in the upper middle parts of the left and right side ends of the wastewater bottle body 71. The housings of the water level switch AN4 and the temperature switch W1 (whose height is lower than the height of the water level switch AN4) are respectively hermetically installed in the two openings, and the probe of the water level switch AN4 and the temperature sensing head of the temperature switch W1 are respectively located inside the wastewater bottle body 71; a sealed chamber 75 is welded to the lower end of the wastewater bottle body 71. The electric heating tube JR is installed in the sealed chamber 75 and its heating surface is closely attached to the outer lower end of the wastewater bottle body 71 (the two wires connected to the electric heating tube JP are respectively sleeved in multiple ceramic insulating tubes, and the wires are led out through the opening on the right side end of the sealed chamber 75); the power supply module N1 and the control circuit 8 are installed on the circuit board in the component box 9, and the component box 9 is installed on the right outer side end of the storage bin at the lower end of the experimental table 1.

[0018] Figure 1 , 2, as shown in Figures 2 and 3, the lower end of the upper magnet ring 62 and the upper end of the lower magnet ring 74 have opposite polarities and the same outer diameter. A hollow sealing rubber ring (not shown in the figure, which plays a sealing role) is adhesively installed at the upper end of the lower magnet ring 74. The middle part of the connecting pipe 6 is a split structure. The lower end of the upper connecting pipe 6 and the upper end of the lower connecting pipe 6 are tightly sleeved with a high-temperature resistant hose 10 (the upper end of the connecting pipe 6 can move upward by a certain distance to facilitate the upper magnet to be attracted to the lower magnet). The waste water bottle body 71 is placed at the front part of the left side end in the storage bin. The height of the lower end of the upper magnet ring 62 is 1 cm lower than the height of the upper end of the lower magnet ring 74. The lower end of the upper magnet ring 62 is hermetically attracted to the upper end of the lower magnet ring 74 (the wire connected to the waste water bottle body 71 has a length allowance; the waste water bottle body 71 is placed at the lower end of the connecting pipe 6 after opening the storage cabinet door at the left end of the test bench). The control circuit includes a relay J1, a time control switch N3, an alarm lamp H, and a buzzer B connected by wires. The negative power input terminal 2 and the negative trigger signal input terminal 4 of the time control switch N3 are connected to the negative power input terminal of the buzzer B, the negative power input terminal of the relay J1, and the negative power input terminal of the alarm lamp H. The positive power input terminal of the alarm lamp H is connected to the positive power input terminal of the relay J1. The solenoid valves K1 and K2 are normally closed spool solenoid valves.

[0019] Figure 1 , 2 , as shown in Figures 2 and 3. The power input terminals 1 and 2 of the power module N1, the two control power input terminals of the relay J1 in the control circuit, and the two poles of the AC 220V power supply are respectively connected by wires. The power output terminals 3 and 4 of the power module N1 are connected to the power input terminals 1 and 2 of the water level switch N2, the power input terminals 1 and 2 of the water level switch AN4, the power input terminals 1 and 2 of the time control switch N3 in the control circuit, and the power input terminal of the temperature switch W1 (the 3rd pin of the power module N1 is connected to the power input terminal of the temperature switch W1) by wires. The power output terminal of the temperature switch W1 and the 4th pin of the power module N1 are respectively connected to both ends of the power input of the buzzer B by wires. The 5th pin and the 2nd pin of the time control switch N3 are respectively connected to both ends of the power input of the two solenoid valves K1 and K2 by wires. The power input terminal of the motor heat pipe JR and the two normally open contact terminals of the relay J1 are respectively connected by wires. The signal output terminal 3 of the water level switch N2 is connected to the positive trigger signal input terminal 3 of the time control switch N3 by wires. The signal output terminal 3 of the water level switch AN4 is connected to the positive power input terminals of the relay J1 and the alarm lamp H by wires.

[0020] Figure 1 , 2As shown in Figures 3, after the main power switch is turned on, the power supply mechanism N1 is energized and operates. After the power supply mechanism N1 is energized, the DC 12V power supply outputs from its pins 3 and 4 and enters the power input terminal of the control circuit. When the staff pours the wastewater generated after inspection or experiment into the wastewater tank 2, the water will enter the wastewater pipe 5 and submerge the two probes of the water level detection switch N2. Then, the high level is output from the pin 3 of the water level detection switch N2 and enters the pin 3 of the time control switch N3. In this way, the time control switch N3 outputs power for a certain period (such as 6 seconds) to the power input terminals of the solenoid valves K1 and K2. The solenoid valves K1 and K2 are energized and their valve cores open. The tap water enters the wastewater tank 2 through the solenoid valve K1 with the open valve core to wash the wastewater poured into the wastewater tank clean. Then, the wastewater will enter the wastewater bottle body 71 through the solenoid valve K2 with the open valve core for collection (after the water enters the wastewater bottle body, the two solenoid valves lose power and the valve cores close, preventing the safety hazards brought by harmful germs in the water floating into the air to people's physical health). When the water in the wastewater bottle body 71 is less and does not submerge the two probes of the water level switch AN4, the high level is not output from the pin 3 of the water level switch AN4. Then, the relay J1 will not be energized and the electric heating tube JR will not be energized for heating. When the water in the wastewater bottle body 71 is more (three-fifths of the amount in the wastewater bottle body 71) and submerges the two probes of the water level switch AN4, the high level is output from the pin 3 of the water level switch AN4 and enters the positive power input terminal of the alarm lamp H (the alarm lamp H is energized and lights up to prompt the staff that the water in the wastewater bottle body is relatively more and is being heated. At this time, try not to pour water into the wastewater tank 2) and the relay J1. Then, the relay J1 will be energized and its control power input terminal and normally open contact terminal will close. The electric heating tube JR will be energized and heat up to heat the water in the wastewater bottle body 71 (made of stainless steel). When the water temperature in the wastewater bottle body 71 does not reach 100°C, the internal contacts of the temperature switch W1 will not close. In this way, the buzzer B will not be energized and sound. When the water temperature in the wastewater bottle body 71 reaches 100°C, the internal contacts of the temperature switch W1 will close and the buzzer B will be energized and sound. After the staff hears the sound for a certain period (such as 2 minutes), they can open the storage door to separate the upper magnet and the lower magnet, then take out the wastewater bottle body 71, pour the wastewater after high-temperature sterilization into other buckets and transfer it to other places for treatment. Subsequently, reset the wastewater bottle body 71 again and it can be used again. The main function of the new type pressure switch 72 is to discharge the air with pressure after the wastewater is heated and boiled (the overpressure gas is discharged to the atmosphere through the pressure switch 72. Specifically, an exhaust hole can be preset at the left end of the storage cabinet to facilitate the discharge of the overpressure steam). Through the above, since the wastewater has been subjected to high-temperature sterilization treatment, the safety hazards brought by germs floating into the air to people's physical health are prevented.

[0021] Figure 3Among them, the buzzer B is a finished product of an active continuous buzzer with a working voltage of 12V (model MF12V); the power supply mechanism N1 is a finished product of an AC 220V to DC 12V power module; the solenoid valves K1 and K2 are normally closed spool solenoid valves with a power of 1W; the relay J1 is a DC12V relay; the water level detection switches N4 and the water level detection switch AN5 are finished products of water immersion detectors of model WT-202, which have two power input terminals and one signal output terminal. When the detection head (two metal sheets) is submerged in water, the signal output terminal outputs, otherwise it does not output; the time control switch N3 is a finished product of a control time relay module of model Y27F-MOS. The control time relay module finished product has two power input terminals, pins 1 and 2, two signal input terminals, pins 3 and 4, and also has four setting buttons, a normally open power output terminal, pin 5, and a normally closed contact terminal, pin 6 (this pin is not used in this embodiment). Production technicians can set the time for the power output terminal to output power through multiple setting buttons. After the control time relay module finished product is powered on, each time a voltage signal is input to the signal input terminal, its power output terminal outputs power for the set time; the alarm light H is an incandescent indicator light with a working voltage of 12V and 2W (its light-emitting surface is located outside the front end of the component box 8); the temperature switch W1 is a finished product of a liquid expansion adjustable temperature switch (with normally open internal contacts); the pressure switch 72 is an adjustable safety exhaust valve of model DN8DN15.

[0022] In the description of the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0023] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A new type of laboratory wastewater treatment equipment, including a solenoid valve and a water level detection switch, characterized in that: It also has a control circuit and a waste water bottle mechanism; there are at least two solenoid valves, the upper end of the water outlet pipe of the sink on the experimental table is connected to the lower end of the first solenoid valve, and the upper end of the first solenoid valve is equipped with a flushing pipe; a waste water pipe is installed at the lower end of the sink, the lower end of the waste water pipe is connected to the upper end of the second solenoid valve, the lower end of the second solenoid valve is connected to a connecting pipe, the lower end of the connecting pipe is equipped with an upper magnet ring, the water level detection switch is installed outside the side end of the waste water pipe, and its probe is located in the waste water pipe; the waste water bottle mechanism includes a waste water bottle body, a pressure switch, an electric heating tube, a water level switch A, and a temperature switch, the waste water bottle body is equipped with a liquid inlet pipe, and the upper end of the liquid inlet pipe is equipped with a A lower magnet ring is installed; the pressure switch is installed on one side of the upper end of the waste water bottle body, the water level switch A and the temperature switch are respectively installed on both sides of the waste water bottle body, and the probe of the water level switch A and the temperature sensing head of the temperature switch are located in the waste water bottle body; a sealed compartment is installed at the lower end of the waste water bottle body, and the electric heating tube is installed in the sealed compartment; the control circuit is installed in the component box, and the component box is installed on the side end of the experimental table; the signal output ends of the temperature switch, the water level switch, and the water level switch A are electrically connected to the multi-channel signal input ends of the control circuit, and the power output end of the control circuit is electrically connected to the power input end of the electric heating tube.

2. The novel laboratory wastewater treatment equipment according to claim 1 is characterized in that: The lower end of the upper magnet ring and the upper end of the lower magnet ring have opposite polarities and consistent outer diameters, and a sealing ring is installed on the upper end of the lower magnet ring.

3. The novel laboratory wastewater treatment equipment according to claim 1 is characterized in that: The middle part of the connecting pipe is a split structure, and hoses are installed at the lower end of the upper connecting pipe and the upper end of the lower connecting pipe. The waste water bottle body is placed in the storage bin of the laboratory bench.

4. The novel laboratory wastewater treatment equipment according to claim 1 is characterized in that: The height of the lower end of the upper magnet circle is lower than the height of the upper end of the lower magnet circle, and the lower end of the upper magnet circle is attracted to the upper end of the lower magnet circle.

5. The novel laboratory wastewater treatment equipment according to claim 1 is characterized in that: The control circuit includes an electrically connected relay, a time switch, an alarm light, and a buzzer. The negative power input terminal and the negative trigger signal input terminal of the time switch are connected to the negative power input terminal of the buzzer, the negative power input terminal of the relay, and the negative power input terminal of the alarm light. The positive power input terminal of the alarm light is connected to the positive power input terminal of the relay.

6. The novel laboratory wastewater treatment equipment according to claim 1 is characterized in that: The solenoid valve is a normally closed spool solenoid valve.

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