Waste liquid treatment equipment for clinical laboratory

Abstract

The utility model relates to the field of medical waste liquid treatment instruments, and discloses waste liquid treatment equipment for a clinical laboratory, which comprises a mounting shell, a treatment tank is arranged in the mounting shell, the treatment tank is sequentially divided into an upper cylindrical section, a middle circular truncated cone section and a lower cylindrical section from top to bottom, the diameter of the middle circular truncated cone section is gradually reduced from top to bottom, and a liquid inlet ring is arranged outside the upper cylindrical section. A built-in step is arranged at the lower end of the liquid inlet ring and sleeves the upper cylindrical section, the upper end of the liquid inlet ring is higher than a tank opening of the treatment tank, a waste liquid pipe is arranged on the outer circular surface of the liquid inlet ring, a disinfection pipeline is arranged in the upper cylindrical section and comprises a main pipeline, and branch pipelines which are obliquely arranged are arranged at the bottom of the main pipeline; the distance between the branch pipelines and the main pipeline is gradually decreased from bottom to top, the straight line where the axis of each branch pipeline is located intersects with the inner wall of the middle circular truncated cone section of the treatment tank, and the multiple branch pipelines are arranged in the circumferential direction of the main pipeline in an array mode.

Description

Technical Field

[0001] This utility model relates to the field of medical devices, specifically to the field of medical waste liquid treatment devices, and particularly to a waste liquid treatment device for laboratory departments. Background Technology

[0002] Hospital laboratories generate a large amount of waste liquid daily. This waste liquid is generally collected and treated to meet standards before being discharged. In existing technologies, a common method is to add disinfectant to the waste liquid for disinfection. During the treatment process, to accelerate efficiency, the waste liquid is usually stirred to ensure thorough mixing with the disinfectant. For example, Chinese utility model patents CN215946939U and CN213231862U disclose a waste liquid treatment device for hospital laboratories. Both of these existing patent documents utilize stirring rods or rotating blades to stir the waste liquid and disinfectant, ensuring thorough mixing. While this method can accelerate treatment efficiency and thoroughly disinfect wastewater, it has some drawbacks. For example, the stirring rod or rotating blade, which serves as the stirring medium, is immersed in a mixture of wastewater and disinfectant. Furthermore, the composition of the disinfectant varies depending on the composition of the wastewater. This means the stirring medium is immersed in a mixture of different components, which can lead to corrosion over time and shorten its lifespan. In addition, there are dead corners on the stirring rod or rotating blade, making them difficult to clean and prone to liquid residue. If the composition of the wastewater differs between two consecutive treatments, the composition of the disinfectant will also change accordingly. Therefore, residual liquid from the previous wastewater treatment will affect the next treatment.

[0003] Based on the above, this utility model proposes a waste liquid treatment device for laboratory use that can mix waste liquid and disinfectant solution evenly and is easy to clean. Utility Model Content

[0004] To address the problems mentioned in the background above, this utility model provides a waste liquid treatment device for laboratory use.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows.

[0006] A waste liquid treatment device for a laboratory includes a housing, within which a treatment tank is installed. A drain pipe is installed at the bottom of the treatment tank, and a solenoid valve is installed at the installation point. The treatment tank is divided into an upper cylindrical section, a middle frustum section, and a lower cylindrical section along its axis from top to bottom. The diameter of the middle frustum section decreases from top to bottom. An inlet ring is installed on the outside of the upper cylindrical section to guide the waste liquid into the treatment tank. During flow, the waste liquid flows along the inner wall of the middle frustum section into the lower cylindrical section. A disinfection pipe is installed inside the upper cylindrical section to guide disinfectant to flow along the inner wall of the middle frustum section.

[0007] Furthermore, the lower end of the inlet ring is provided with an internal step facing inward, and the internal step is fitted outside the upper cylindrical section. The upper end of the inlet ring is higher than the opening of the treatment tank, and a waste liquid pipe is provided on the outer surface of the inlet ring.

[0008] Furthermore, the end of the waste liquid pipe extends out of the mounting shell and is equipped with a T-shaped pipe. The T-shaped pipe includes two inlets and one outlet. The outlet of the T-shaped pipe is connected to the waste liquid pipe. A receiving pipe is installed at one inlet of the T-shaped pipe, and a solenoid valve is installed on the receiving pipe. The other inlet of the T-shaped pipe is connected to a water source, and a solenoid valve is installed at the connection point.

[0009] Furthermore, the upper end of the built-in step is set as an inclined surface, and the distance between the inclined surface and the center line of the treatment tank increases from bottom to top. A drive component is provided inside the mounting housing to drive the liquid inlet ring to move in the vertical direction.

[0010] Furthermore, a connecting bracket is provided at the bottom of the liquid inlet ring, and the driving component includes a motor frame, on which a second motor and a vertically arranged fixed sleeve are provided. A sliding column is slidably installed inside the fixed sleeve, and the upper end of the sliding column is connected to the connecting bracket. A threaded shaft is coaxially installed at the output end of the second motor, and the threaded shaft is threadedly installed inside the sliding column.

[0011] Furthermore, the inner wall of the fixed sleeve is provided with protrusions, and the outer wall of the sliding column is provided with grooves. The protrusions and grooves form a sliding guide fit in the vertical direction.

[0012] Furthermore, the disinfection pipeline includes a main pipeline arranged coaxially with the treatment tank. The upper end of the main pipeline extends out of the mounting shell. The bottom of the main pipeline is provided with branch pipelines arranged at an incline. The distance between the branch pipelines and the main pipeline decreases from bottom to top. The straight line containing the axis of the branch pipeline intersects the inner wall of the middle frustum section of the treatment tank. Several branch pipelines are arranged in an array along the circumference of the main pipeline.

[0013] Furthermore, a tee pipe 2 is installed at the upper end of the main pipeline. The tee pipe 2 includes two inlets and one outlet. The outlet of the tee pipe 2 is connected to the main pipeline. One inlet of the tee pipe 2 is equipped with an input pipe and a solenoid valve 4 is installed on the input pipe. The other inlet of the tee pipe 2 is connected to the water source and a solenoid valve 5 is installed at the connection.

[0014] Furthermore, a motor is installed on the outer surface of the mounting housing, and a power transmission component is installed between the motor and the main pipe. The main pipe is connected to the outlet of the tee pipe 2 through a rotary joint.

[0015] Compared with the prior art, the advantages of this utility model are as follows:

[0016] This solution uses an inlet ring to guide the waste liquid to flow along the tank wall of the treatment tank, forming a water curtain on the central truncated section of the treatment tank. At the same time, the disinfectant flows to the water curtain through a branch pipe, so that the waste liquid and the disinfectant are fully mixed. This thorough mixing method does not require blades, which solves the problems mentioned in the background technology, such as the stirring medium being easily corroded, affecting its service life and being difficult to clean.

[0017] Furthermore, in this solution, after the waste liquid is treated, clean water can flow along the waste liquid flow path and the disinfectant flow path to achieve comprehensive cleaning and make cleaning more convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0020] Figure 3 Schematic diagram of the treatment tank, inlet ring, and disinfection pipeline. Figure 1 ;

[0021] Figure 4 Schematic diagram of the treatment tank, inlet ring, and disinfection pipeline. Figure 2 ;

[0022] Figure 5 This is a schematic diagram of the driving component.

[0023] The labels in the attached diagram are:

[0024] 1. Mounting shell; 2. Processing tank; 201. Drain pipe; 3. Inlet ring; 301. Waste pipe; 4. Disinfection pipe; 401. Main pipe; 402. Branch pipe; 5. Motor 1; 6. Power transmission component; 7. Connecting bracket; 8. Drive component; 801. Motor frame; 802. Motor 2; 803. Fixing sleeve; 804. Protrusion; 805. Sliding column; 806. Groove; 807. Threaded shaft. Detailed Implementation

[0025] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0026] Reference Figures 1-5 A waste liquid treatment device for a laboratory includes a housing 1, inside which a treatment tank 2 is installed. The treatment tank 2 is vertically arranged, and a drain pipe 201 is installed on the bottom of the tank. A solenoid valve is installed at the installation point. After the waste liquid is treated, the solenoid valve opens, and the waste liquid is discharged outward through the drain pipe 201. The treatment tank 2 is divided into an upper cylindrical section, a middle frustum section, and a lower cylindrical section from top to bottom along the axis. The diameter of the middle frustum section decreases from top to bottom. An inlet ring 3 is installed on the outside of the upper cylindrical section to draw the waste liquid into the treatment tank 2. During the flow, the waste liquid flows into the lower cylindrical section along the inner wall of the middle frustum section. At the same time, a disinfection pipe 4 installed in the upper cylindrical section draws disinfectant into the inner wall of the middle frustum section, thereby ensuring that the waste liquid and disinfectant are thoroughly mixed.

[0027] Reference Figure 3 and Figure 4 The inlet ring 3 is circular in shape, with an inwardly built-in step at its lower end. The built-in step is fitted over the upper cylindrical section. The upper end of the inlet ring 3 is higher than the opening of the treatment tank 2, i.e., higher than the upper end of the upper cylindrical section. A waste liquid pipe 301 is provided on the outer surface of the inlet ring 3. The end of the waste liquid pipe 301 extends out of the mounting shell 1 and is provided with a three-way pipe. The three-way pipe is feasible with existing technology and includes two inlets and one outlet. The outlet is connected to the waste liquid pipe 301. A receiving pipe is provided at one inlet for receiving waste liquid. A solenoid valve is provided on the receiving pipe. The other inlet is connected to a water source and a solenoid valve is provided at the connection point. Valve three, for example, for tap water; when solenoid valve two is open and solenoid valve three is closed, the waste liquid is drawn by existing pump technology and enters the inlet ring 3 through the receiving pipe, three-way pipe one, and waste liquid pipe 301. When the liquid level of the waste liquid in the inlet ring 3 is higher than the opening of the treatment tank 2, the waste liquid will rush into the treatment tank 2 and flow down the tank wall of the treatment tank 2, forming a water curtain on the inner wall of the middle truncated section of the treatment tank 2. After the waste liquid is treated, solenoid valve two is closed and solenoid valve three is opened. Clean water enters the inlet ring 3 through three-way pipe one and waste liquid pipe 301 and flows into the treatment tank 2 to clean the flow path of the waste liquid.

[0028] In the preferred embodiment, since the waste liquid accumulates in the inlet ring 3 and only flows into the treatment tank 2 after the liquid level is higher than the tank opening, some waste liquid will remain in the inlet ring 3. Therefore, referring to... Figure 3 and Figure 4 The upper end of the built-in step is set as a slope, and the distance between the slope and the centerline of the treatment tank 2 increases from bottom to top, as shown in the reference. Figure 2 The housing 1 is equipped with a drive unit 8, which is used to drive the liquid inlet ring 3 to move in the vertical direction. After the waste liquid flows into the treatment tank 2, the drive unit 8 drives the liquid inlet ring 3 to move upward, so that the inclined surface is higher than the tank opening, thereby preventing waste liquid from remaining in the liquid inlet ring 3.

[0029] Furthermore, refer to Figure 2 and Figure 5 The bottom of the liquid inlet ring 3 is provided with a connecting bracket 7. The driving component 8 includes a motor frame 801, a motor 802 and a vertically arranged fixed sleeve 803 are provided on the motor frame 801, and a sliding column 805 is slidably installed in the fixed sleeve 803. Preferably, the sliding guide cooperation between the two is achieved by the cooperation between the protrusion 804 provided on the inner wall of the fixed sleeve 803 and the groove 806 provided on the outer wall of the sliding column 805.

[0030] The upper end of the slide column 805 is connected to the connecting bracket 7. The output end of the motor 802 is coaxially mounted with a threaded shaft 807, which is threaded inside the slide column 805. The motor 802 drives the threaded shaft 807 to rotate, thereby driving the slide column 805 to move, and finally causing the liquid inlet ring 3 to move.

[0031] Reference Figure 3 and Figure 4 The disinfection pipeline 4 includes a main pipeline 401 arranged coaxially with the treatment tank 2. The upper end of the main pipeline 401 extends out of the mounting shell 1 and is provided with a tee pipe 2. The tee pipe 2 also includes two inlets and one outlet. The outlet is connected to the main pipeline 401. One inlet is provided with an input pipe and a solenoid valve 4 is provided on the input pipe. The input pipe is used to receive disinfectant. The other inlet is connected to a water source and a solenoid valve 5 is provided at the connection, such as tap water.

[0032] The bottom of the main pipe 401 is provided with branch pipes 402 arranged at an incline. The distance between the branch pipes 402 and the main pipe 401 decreases from bottom to top. The straight line where the axis of the branch pipes 402 is located intersects the inner wall of the middle frustum section of the processing tank 2. Several branch pipes 402 are arranged in an array along the circumference of the main pipe 401.

[0033] When solenoid valve four is open and solenoid valve five is closed, the disinfectant is drawn by the existing pump technology and enters the main pipe 401 through the input pipe and the two-way pipe, and flows into the water curtain of the middle truncated section through the branch pipe 402, so that the waste liquid and disinfectant are fully mixed. After the waste liquid is treated, solenoid valve four is closed and solenoid valve five is opened. Clean water flows into the treatment tank 2 through the two-way pipe, the main pipe 401, and the branch pipe 402, cleaning the flow path of the disinfectant.

[0034] Preferred embodiments, refer to Figure 2 The outer surface of the mounting shell 1 is equipped with a motor 5. A power transmission component 6 is provided between the motor 5 and the main pipe 401. The main pipe 401 is connected to the outlet of the tee pipe 2 through a rotary joint. The significance is that the main pipe 401 is driven to rotate by the motor 5, thereby further improving the mixing of waste liquid and disinfectant.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A waste liquid treatment device for a laboratory, comprising a housing (1), a treatment tank (2) disposed within the housing (1), a drain pipe (201) installed at the bottom of the treatment tank (2), and a solenoid valve installed at the installation point, characterized in that, The treatment tank (2) is divided into an upper cylindrical section, a middle frustum section and a lower cylindrical section from top to bottom along the axis. The diameter of the middle frustum section decreases from top to bottom. An inlet ring (3) is provided on the outside of the upper cylindrical section. The inlet ring (3) is used to pull the waste liquid into the treatment tank (2). When it flows, the waste liquid flows into the lower cylindrical section along the inner wall of the middle frustum section. A disinfection pipe (4) is provided in the upper cylindrical section. The disinfection pipe (4) is used to pull the disinfectant liquid into the inner wall of the middle frustum section.

2. The waste liquid treatment equipment for a laboratory according to claim 1, characterized in that, The lower end of the liquid inlet ring (3) is provided with an internal step facing inward. The internal step is sleeved on the outside of the upper cylindrical section. The upper end of the liquid inlet ring (3) is higher than the opening of the treatment tank (2). The outer circular surface of the liquid inlet ring (3) is provided with a waste liquid pipe (301).

3. The waste liquid treatment equipment for a laboratory according to claim 2, characterized in that, The end of the waste liquid pipe (301) extends out of the mounting shell (1) and is provided with a three-way pipe. The three-way pipe includes two inlets and one outlet. The outlet of the three-way pipe is connected to the waste liquid pipe (301). A receiving pipe is provided at one inlet of the three-way pipe. A solenoid valve is provided on the receiving pipe. The other inlet of the three-way pipe is connected to a water source and a solenoid valve is provided at the connection.

4. The waste liquid treatment equipment for a laboratory according to claim 2, characterized in that, The upper end of the built-in step is set as an inclined surface, and the distance between the inclined surface and the axis of the treatment tank (2) increases from bottom to top. The mounting shell (1) is provided with a driving component (8) for driving the liquid inlet ring (3) to move in the vertical direction.

5. The waste liquid treatment equipment for a laboratory according to claim 4, characterized in that, The bottom of the liquid inlet ring (3) is provided with a connecting bracket (7). The driving component (8) includes a motor frame (801). The motor frame (801) is provided with a second motor (802) and a vertically arranged fixed sleeve (803). A sliding column (805) is slidably installed in the fixed sleeve (803). The upper end of the sliding column (805) is connected to the connecting bracket (7). The output end of the second motor (802) is coaxially installed with a threaded shaft (807). The threaded shaft (807) is threadedly installed in the sliding column (805).

6. The waste liquid treatment equipment for a laboratory according to claim 5, characterized in that, The inner wall of the fixed sleeve (803) is provided with a protrusion (804), and the outer wall of the sliding column (805) is provided with a groove (806). The protrusion (804) and the groove (806) form a sliding guide fit in the vertical direction.

7. A waste liquid treatment device for a laboratory according to claim 1 or 4, characterized in that, The disinfection pipeline (4) includes a main pipeline (401) arranged coaxially with the treatment tank (2). The upper end of the main pipeline (401) extends out of the mounting shell (1). The bottom of the main pipeline (401) is provided with branch pipelines (402) arranged at an incline. The distance between the branch pipelines (402) and the main pipeline (401) decreases from bottom to top. The straight line where the axis of the branch pipelines (402) is located intersects the inner wall of the middle frustum section of the treatment tank (2). Several branch pipelines (402) are arranged in an array along the circumferential direction of the main pipeline (401).

8. The waste liquid treatment equipment for a laboratory according to claim 7, characterized in that, The upper end of the main pipe (401) is provided with a tee pipe 2. The tee pipe 2 includes two inlets and one outlet. The outlet of the tee pipe 2 is connected to the main pipe (401). One inlet of the tee pipe 2 is provided with an input pipe and a solenoid valve 4 is provided on the input pipe. The other inlet of the tee pipe 2 is connected to the water source and a solenoid valve 5 is provided at the connection.

9. A waste liquid treatment device for a laboratory according to claim 7, characterized in that, The outer surface of the mounting shell (1) is provided with a motor (5), and a power transmission component (6) is provided between the motor (5) and the main pipe (401). The main pipe (401) is connected to the outlet of the tee pipe (2) through a rotary joint.

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