A self-overflowing laboratory waste liquid discharging device

Abstract

The utility model relates to laboratory waste liquid treatment equipment technical field, concretely relates to a kind of self overflow laboratory waste liquid discharge device, and transition chamber is fixedly connected with baffle in the, and the baffle separates transition chamber into chamber one and chamber two;The lower end of baffle and the bottom of transition chamber are left with spacing, form eccentric low-level flow channel;The upper side of box is detachably connected with lid, and the lid is provided with exhaust hole;Box side is connected with liquid inlet pipe, and the other side of box is connected with liquid outlet;The lower side of lid is fixedly connected with sealing element, and the sealing element includes first sealing gasket and second sealing gasket.By transition chamber, eccentric low-level flow channel and conical booster overflow structure cooperation, utilize cavity hydraulic pressure to realize pipeline bubble forced push elimination, solve the technical problem that existing waste liquid discharge device gas-liquid separation effect is poor, pipeline is easy bubble pipe block, and intermittent discharge is not smooth.

Description

Technical Field

[0001] This utility model relates to the technical field of laboratory waste liquid treatment equipment, specifically to a self-overflowing laboratory waste liquid discharge device. Background Technology

[0002] Waste liquid generated during laboratory testing is mostly discharged intermittently. During the discharge process, air can easily enter the pipeline, forming bubbles that clog the pipes and causing the floating liquid to stop flowing, affecting the smoothness of waste liquid discharge. Existing waste liquid discharge water-gas separation structures divide the chamber into a discharge chamber and an exhaust chamber through a partition. Waste liquid is discharged directly from the bottom of the chamber, while gas is discharged from the top exhaust pipe, which can only achieve conventional gas-liquid separation.

[0003] Chinese Patent No. CN215516715U discloses a water-gas separation structure for waste liquid discharge, including a first drain pipe, a buffer chamber, a second drain pipe, and an exhaust pipe. A partition inside the buffer chamber divides it into a drain chamber and an exhaust chamber, both connected at the bottom. The top of the drain chamber is connected to the first drain pipe, and the bottom is connected to the second drain pipe. The exhaust pipe is located on one side wall of the exhaust chamber and near the top surface. This invention, by setting up a buffer chamber, prevents liquid components in the waste liquid from easily entering the exhaust pipe during gas-liquid separation. Backflow generated from the main drain pipe at the plant end can also be smoothly discharged from the exhaust pipe, ensuring both the water-gas separation effect and the service life of the exhaust pipe, without affecting the cleaning effect of the cleaning unit. Furthermore, by setting up a filter screen, it avoids the accumulation of air bubbles in the exhaust pipe, which could affect the gas-liquid separation effect and potentially cause leakage and corrosion of the pipe wall.

[0004] The aforementioned patent states that the water-gas separation structure relies on height difference to achieve gas-liquid separation, which cannot forcibly push and eliminate air bubbles generated by intermittent liquid discharge in the pipeline. Air bubbles are still prone to remain in the pipeline, causing floating liquid to block the pipe. Furthermore, it is difficult to use the hydraulic pressure of the cavity to form a stable pushing force, which is difficult to meet the use requirements of continuous and smooth discharge of intermittent waste liquid in the laboratory. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a self-overflowing laboratory waste liquid discharge device. Through the combination of a transition chamber, an eccentric low-position guiding channel, and a conical pressurized overflow structure, the device utilizes hydraulic pressure within the chamber to forcibly push and eliminate air bubbles in the pipeline, thus solving the technical problems of poor gas-liquid separation, easy blockage of pipelines by air bubbles, and intermittent and unsmooth discharge in existing waste liquid discharge devices.

[0006] To address the problems of existing technologies, this utility model provides a self-overflowing laboratory waste liquid discharge device, comprising a housing, wherein the housing has a transition chamber, and a partition is fixedly connected to the transition chamber, the partition dividing the transition chamber into a first chamber and a second chamber; a gap is left between the lower end of the partition and the bottom of the transition chamber to form an eccentric low-level guiding channel; a housing cover is detachably connected to the upper side of the housing, the housing cover has an exhaust hole, and a needle is fixedly connected to the inner side of the exhaust hole, the needle being used to puncture air bubbles flowing through the exhaust hole, thereby preventing air bubbles from overflowing outward with the airflow; an inlet pipe is connected through one side of the housing, and an outlet pipe is connected through the other side of the housing; a sealing element is fixedly connected to the lower side of the housing cover, the sealing element including a first sealing gasket and a second sealing gasket.

[0007] Preferably, the liquid outlet is an inwardly constricting conical structure, and a flexible connecting pipe is fixedly connected to the constricted end of the liquid outlet, with a waste liquid tank provided at one end of the flexible connecting pipe.

[0008] Preferably, the first sealing gasket is matched with the upper side of the box body, and the second sealing gasket is matched with the upper side of the partition plate. Both the first sealing gasket and the second sealing gasket are elastic sealing structures.

[0009] Preferably, the second chamber is a liquid inlet chamber, and the liquid inlet pipe is connected to the interior of the second chamber.

[0010] Preferably, the eccentric low-position guide channel is positioned biased towards one side of the chamber.

[0011] Preferably, the liquid outlet is located in the upper part of the chamber, and the height of the liquid outlet is lower than the height of the liquid inlet pipe.

[0012] Preferably, a support cover is fitted on the lower side of the waste liquid tank, and the support cover is fixedly connected to the tank body. The support cover is used to limit the position of the waste liquid tank.

[0013] The advantages of this utility model compared to the prior art are: 1. By combining the transition chamber with the eccentric low-position guide channel, a stable hydraulic pressure is formed inside the chamber, which can force the air bubbles in the pipeline to flow into the waste liquid tank, eliminating the problems of air bubble floating liquid and pipe blockage caused by intermittent discharge from the root, and ensuring smooth discharge; 2. The outlet adopts a conical pressurization structure combined with a liquid level difference design, which can achieve self-overflow discharge without external power. The structure is simple and energy-free, and is more suitable for intermittent liquid discharge scenarios in the laboratory compared with conventional gas-liquid separation devices. 3. The tank cover, together with double sealing gaskets, achieves chamber sealing and pressure maintenance, and the support cover fixes the position of the waste liquid tank. The overall assembly is stable and the sealing is reliable, effectively preventing waste liquid leakage and improving the safety and emission stability of the device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a self-overflowing laboratory waste liquid discharge device according to this utility model. Figure 1 ; Figure 2 This is a three-dimensional schematic diagram of a self-overflowing laboratory waste liquid discharge device according to this utility model. Figure 2 ; Figure 3 This is a three-dimensional schematic diagram of a self-overflowing laboratory waste liquid discharge device according to this utility model. Figure 3 ; Figure 4 This is a three-dimensional schematic diagram of the internal structure of the housing of a self-overflowing laboratory waste liquid discharge device according to this utility model; Figure 5 This is a three-dimensional schematic diagram of the cover and needle of a self-overflowing laboratory waste liquid discharge device according to this utility model.

[0015] The following are the labels in the diagram: 1. Box body; 11. Partition; 12. Box cover; 13. Vent; 14. Liquid inlet pipe; 15. Liquid outlet; 16. Seal; 17. Flexible connecting pipe; 18. Waste liquid tank; 19. Support cover; 20. Needle. Detailed Implementation

[0016] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0017] See Figures 1 to 4As shown, a self-overflowing laboratory waste liquid discharge device includes a housing 1. The housing 1 has a transition chamber, in which a partition 11 is fixedly connected, dividing the transition chamber into a first chamber and a second chamber. A gap is left between the lower end of the partition 11 and the bottom of the transition chamber, forming an eccentric low-level flow channel. A housing cover 12 is detachably connected to the upper side of the housing 1. The housing cover 12 has an exhaust port 13, and a needle 20 is fixedly connected to the inner side of the exhaust port 13. The needle 20 is used to puncture air bubbles flowing through the exhaust port 13, thereby preventing the air bubbles from overflowing with the airflow. A through-type connection is provided on one side of the housing 1. The inlet pipe 14 is connected to the outlet 15 through the other side of the box body 1; a sealing element 16 is fixedly connected to the lower side of the box cover 12, the sealing element 16 includes a first sealing gasket and a second sealing gasket; the outlet 15 is an inwardly concave conical structure, and a flexible connecting pipe 17 is fixedly connected to the concave end of the outlet 15, and a waste liquid tank 18 is provided at one end of the flexible connecting pipe 17; the second chamber is an inlet chamber, and the inlet pipe 14 is connected to the interior of the second chamber; the eccentric low-position guide channel is set to one side of the first chamber; the outlet 15 is located at the upper part of the first chamber, and the height of the outlet 15 is lower than the height of the inlet pipe 14.

[0018] Specifically, when the self-overflowing laboratory waste liquid discharge device is put into use, the waste liquid tank 18 is placed inside the support 19, the flexible connecting pipe 17 is inserted into the waste liquid tank 18, and then the lid 12 is assembled and fixed to the body 1. The lid 12 adopts a detachable structure, which facilitates the periodic opening of the body 1 and the cleaning of the solid impurities deposited inside, and also facilitates the maintenance of the internal chambers and pipelines, ensuring the long-term stable operation of the device. At this time, the first and second sealing gaskets of the sealing element 16 are pressed against the body 1 and the partition 11 respectively to form a complete sealing structure. The exhaust port 13 is located above the second chamber, communicating only with the second chamber and not with the first chamber, balancing the internal air pressure of the second chamber. Waste liquid is injected into the body 1 through the inlet pipe 14. The waste liquid first enters the second chamber, and the liquid level in the second chamber and the first chamber rises synchronously until it submerges the partition 11 and reaches the height of the outlet 15 of the first chamber. At this time, the liquid level in chamber one is maintained between the lower edge of the outlet 15 and the bottom of the inlet pipe 14, so that a stable drop is formed between the inlet pipe 14 and the outlet 15, ensuring that the waste liquid flows smoothly into chamber one.

[0019] When air bubbles are discharged into the tank 1 through the inlet pipe 14, they rise and accumulate above the liquid surface in chamber 2. The waste liquid flows from the bottom of chamber 2 to chamber 1, rising from bottom to top to the outlet 15 and entering the flexible connecting pipe 17. No external vent 13 is provided in the cavity above the outlet 15 of chamber 1, maintaining pressure inside chamber 1. The waste liquid entering chamber 1 is forced into the flexible connecting pipe 17 under the pressure of the waste liquid inside chamber 2. Even if a small number of air bubbles are generated inside the flexible connecting pipe 17, they will flow downstream into the waste liquid tank 18 under the continuous pressure of the waste liquid inside chamber 2, preventing air bubble floating, blockage, and flow interruption problems in the pipeline.

[0020] When the bubbles accumulated inside chamber two rise to the upper part of the cavity, and the number of bubbles continues to increase and gradually approaches the position of the vent 13, the needle 20 can puncture and destroy the bubbles, breaking the sealed bubbles to release the internal gas. The released gas can be discharged outward through the vent 13, preventing the bubbles from overflowing from the vent 13 and preventing liquid overflow, while also preventing the bubbles from overflowing into the inlet pipe 14. As the liquid inside the tank 1 continues to accumulate, the liquid level in chamber two continuously provides pressure to the upper space of the outlet 15 in chamber one and the outlet 15, realizing the upward pushing of the bubbles in the flexible connecting pipe 17, ensuring a continuous and stable overflow of waste liquid.

[0021] See Figure 3 and Figure 4 As shown, the outlet 15 is an inwardly concave conical structure. A flexible connecting pipe 17 is fixedly connected to the concave end of the outlet 15. A waste liquid tank 18 is provided at one end of the flexible connecting pipe 17. The first sealing gasket is correspondingly matched with the upper side of the box body 1, and the second sealing gasket is correspondingly matched with the upper side of the partition 11. Both the first sealing gasket and the second sealing gasket are elastic sealing structures. A support cover 19 is sleeved on the lower side of the waste liquid tank 18. The support cover 19 is fixedly connected to the box body 1 and is used to limit the position of the waste liquid tank 18.

[0022] Specifically, the outlet 15 adopts an inwardly contracting conical structure to increase the local pressure during waste liquid overflow, enhance the ability to push air bubbles in the pipeline, and prevent air bubbles from accumulating and causing floating liquid or blockage in the pipeline; after the cover 12 is assembled with the body 1, the first sealing gasket presses against the upper opening of the body 1, and the second sealing gasket presses against the upper end face of the partition 11 to form a double sealing structure, maintain the pressure inside the transition chamber, and ensure that the liquid pressure can effectively push air bubbles; the flexible connecting pipe 17 is inserted into the bottom of the waste liquid tank 18 to prevent waste liquid from splashing and leaking out, and the support cover 19 limits and fixes the waste liquid tank 18 to ensure the stability of the recycling process.

[0023] Working principle: When the device is put into use, the waste liquid tank 18 is placed inside the support 19 for positioning, the flexible connecting pipe 17 is inserted into the waste liquid tank 18, and the lid 12 is assembled and closed with the body 1. The first and second sealing gaskets of the sealing element 16 are squeezed to form a sealed state, and the vent 13 is located above the second chamber. Laboratory waste liquid is intermittently discharged into the second chamber through the inlet pipe 14. The waste liquid level rises and flows into the first chamber through the eccentric low-position guide channel. Air bubbles float and remain in the upper part of the second chamber and are discharged through the vent 13. After the waste liquid level in the first chamber rises to the height of the outlet 15, it overflows through the conical outlet 15 under the action of the liquid pressure inside the chamber and flows into the waste liquid tank 18 through the flexible connecting pipe 17. Air bubbles in the pipeline are pushed out synchronously with the flow under the liquid pressure, avoiding air bubbles blocking the pipe and floating liquid. The entire process can achieve continuous self-overflow discharge without external power, effectively ensuring smooth and stable intermittent laboratory waste liquid discharge.

[0024] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A self-overflowing laboratory waste liquid discharge device, characterized in that, The device includes a housing (1), which has a transition chamber. A partition (11) is fixedly connected to the transition chamber, dividing the transition chamber into a first chamber and a second chamber. A gap is left between the lower end of the partition (11) and the bottom of the transition chamber to form an eccentric low-position flow channel. A cover (12) is detachably connected to the upper side of the housing (1). The cover (12) has an exhaust hole (13). A needle (20) is fixedly connected to the inner side of the exhaust hole (13). The needle (20) is used to puncture the air bubbles flowing through the exhaust hole (13) to prevent the air bubbles from overflowing with the airflow. An inlet pipe (14) is connected through one side of the housing (1), and an outlet (15) is connected through the other side of the housing (1). A sealing element (16) is fixedly connected to the lower side of the cover (12). The sealing element (16) includes a first sealing gasket and a second sealing gasket.

2. The self-overflowing laboratory waste liquid discharge device according to claim 1, characterized in that, The outlet (15) is a conical structure that contracts inward. A flexible connecting pipe (17) is fixedly connected to the contracted end of the outlet (15), and a waste liquid tank (18) is provided at one end of the flexible connecting pipe (17).

3. The self-overflowing laboratory waste liquid discharge device according to claim 1, characterized in that, The first sealing gasket is matched with the upper side of the box (1), and the second sealing gasket is matched with the upper side of the partition (11). Both the first sealing gasket and the second sealing gasket are elastic sealing structures.

4. The self-overflowing laboratory waste liquid discharge device according to claim 1, characterized in that, The second chamber is a liquid inlet chamber, and the liquid inlet pipe (14) is connected to the interior of the second chamber.

5. The self-overflowing laboratory waste liquid discharge device according to claim 1, characterized in that, The eccentric low-position guide channel is set off to one side of the chamber.

6. The self-overflowing laboratory waste liquid discharge device according to claim 1, characterized in that, The outlet (15) is located at the upper part of the chamber, and the height of the outlet (15) is lower than the height of the inlet pipe (14).

7. A self-overflowing laboratory waste liquid discharge device according to claim 2, characterized in that, The waste liquid tank (18) is fitted with a support cover (19) on its lower side. The support cover (19) is fixedly connected to the box body (1). The support cover (19) is used to limit the position of the waste liquid tank (18).

Images