Condensation, absorption and purification device for laboratory

Abstract

The utility model discloses a condensation, absorption and purification device for a laboratory, which comprises a hollow condenser shell, a condensation separation area and a condensation separation area, the condenser shell is provided with a top air outlet, the inner cavity of the condenser shell is provided with an absorption and purification area and the condensation separation area from bottom to top, and the absorption and purification area is used for accommodating absorption liquid; the aeration air inlet pipe comprises aeration holes communicated with the absorption and purification area, and the aeration holes are used for introducing air carrying high-temperature oil mist into the absorption liquid in the absorption and purification area in a bubble form; the absorption liquid at least partially absorbs the oil mist in the air carrying the high-temperature oil mist; the more than one transversely arranged condensate pipe layer is arranged in the condensation separation area at intervals from top to bottom; the air absorbed by the absorption liquid flows through the transversely arranged condensate pipe layer for heat exchange, at least part of the oil mist is condensed from the air absorbed by the absorption liquid and flows back to the absorption liquid in the absorption and purification area, and the air after heat exchange flows out from a top air outlet.

Description

Technical Field

[0001] The utility model relates to the technical field of impurity removal, in particular to a condensation absorption purification device for a laboratory. Background Art

[0002] Detecting mechanical impurities in lubricating oil is a key indicator of lubricant quality. The presence of mechanical impurities can affect the rheological properties, thermal stability, and lubrication performance of the lubricant, potentially causing increased wear and even damage to mechanical equipment. By measuring the amount of mechanical impurities, adjustments to lubricant additives can be made.

[0003] The detection of mechanical impurities in lubricating oil is typically performed in the laboratory. During this process, the laboratory must filter a heated sample containing a vapor mixture of lubricating oil and solvent oil (primarily petroleum ether) (hereinafter referred to as oil mist), reaching a temperature of up to 70°C.

[0004] In existing technology, the filtration device is directly connected to the vacuum pump via a rubber hose. When the drawn air passes through the heated sample, it carries a certain amount of high-temperature vapor from lubricating oil and solvent oil, forming an oil mist. This oil mist, drawn directly into the vacuum pump without separation, accumulates and condenses over time, corroding vacuum pump components and clogging the filtration line, leading to reduced vacuum pump efficiency and even damage.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to ordinary technicians in this field. Utility Model Content

[0006] Purpose of the utility model: The technical problem to be solved by the utility model is to provide a laboratory condensation absorption purification device for purifying the mixed vapor of lubricating oil and solvent oil contained in the air, so as to avoid subsequent blockage of vacuum pumps and other suction devices.

[0007] In order to solve the above technical problems, the utility model discloses a laboratory condensation absorption purification device, which includes:

[0008] A hollow condenser shell is provided with a top air outlet, and the inner cavity of the condenser shell is provided with an absorption purification zone and a condensation separation zone from bottom to top, wherein the absorption purification zone is used to accommodate the absorption liquid;

[0009] an aeration inlet pipe, comprising an aeration hole in communication with the absorption and purification zone, the aeration hole being used to introduce air carrying high-temperature oil mist into the absorption liquid in the absorption and purification zone in the form of bubbles; the absorption liquid at least partially absorbs the oil mist in the air carrying high-temperature oil mist;

[0010] And more than one layer of transversely arranged condensation water tube layers are placed in the condensation separation zone at intervals from top to bottom; the air absorbed by the absorption liquid flows through the transversely arranged condensation water tube layers for heat exchange, at least part of the oil mist is condensed from the air absorbed by the absorption liquid and flows back into the absorption liquid in the absorption purification zone, and the air after heat exchange flows out from the top air outlet.

[0011] In some examples, the transversely arranged condensation water pipe layer includes a plurality of transversely arranged condensation water pipes, and the plurality of condensation water pipes are arranged at intervals.

[0012] In some examples, the bottom of the condenser shell is further provided with an openable and closable drain port, and the side wall of the condenser shell is further provided with an openable and closable absorption liquid replenishing port.

[0013] In some examples, the device includes a drain valve for controlling the opening and closing of the drain port. The device also includes a waste liquid collection tank, the inlet of the drain valve is connected to the drain port, and the outlet of the drain valve is connected to the waste liquid collection tank through a pipeline.

[0014] In some examples, the device includes a rehydration valve for controlling the opening and closing of the absorption liquid rehydration port. The device also includes an absorption liquid storage tank, the inlet of the rehydration valve is connected to the absorption liquid storage tank through a pipeline, and the outlet of the rehydration valve is connected to the absorption liquid rehydration port.

[0015] In some examples, the device also includes an upper limit liquid level sensor, a lower limit liquid level sensor, and an over-range liquid level sensor, and the device is configured to control the opening and closing of the drain valve and the replenishment valve according to the upper limit liquid level sensor, the lower limit liquid level sensor, and the over-range liquid level sensor.

[0016] In some examples, the device further includes a drainage pump installed on a pipeline connecting the outlet of the drainage valve and the waste liquid collection tank.

[0017] In some examples, the device further includes a fluid replenishment pump installed on a pipeline connecting the outlet of the fluid replenishment valve and the absorption liquid storage tank.

[0018] In some examples, the absorption liquid is solvent oil or toluene that meets the requirements of SH0004 standard.

[0019] In some examples, one end of the aeration inlet pipe extends below the absorption liquid level in the absorption purification zone, and the other end is located outside the condenser shell. The aeration hole is provided on the pipe body of the aeration inlet pipe located in the absorption purification zone.

[0020] Beneficial effects:

[0021] 1) The present invention utilizes two different purification principles, condensation and absorption, to locate the absorption purification zone and the condensation separation zone in the same inner cavity, with the upper half performing condensation and the lower half absorbing. The oil mist is fully absorbed by an absorption liquid, such as solvent oil, before condensation, reducing the workload of the condensation process. In the condensation separation zone, the unabsorbed small amount of lubricating oil and solvent oil vapor (i.e., oil mist) is condensed and refluxed, enhancing the purification effect and ensuring that the gas entering the subsequent vacuum pump is sufficiently purified. This prevents air carrying high-temperature oil mist from being directly drawn into the vacuum pump during the filtration process, thereby reducing the risk of vacuum pump blockage and preventing environmental pollution. This is beneficial to occupational health protection, reduces the failure rate of the vacuum pump, and improves equipment efficiency.

[0022] 2) The utility model realizes the functions of automatic drainage and automatic replenishment of absorption liquid by setting an upper limit liquid level sensor, a lower limit liquid level sensor and an over-range liquid level sensor, and controlling the on and off of the drain valve and the replenishment valve according to the upper limit liquid level sensor, the lower limit liquid level sensor and the over-range liquid level sensor, thereby reducing the labor cost of manual replenishment and drainage. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, and the above and / or other advantages of the present invention will become more apparent.

[0024] Figure 1 The present invention is a schematic structural diagram of a laboratory condensation absorption purification device disclosed in one embodiment of the present invention.

[0025] The reference numerals in the accompanying drawings are as follows: 1. Condenser shell; 2. Aeration inlet pipe; 3. Arrangement of condensate pipe layer; 4. Waste liquid collection tank; 5. Drain pump; 6. Absorption liquid storage tank; 7. Refill pump; 11. Top air outlet; 12. Absorption purification area; 13. Condensation separation area; 14. Drain port; 15. Absorption liquid replenishment port; 16. Drain valve; 17. Refill valve; 18. Liquid level sensor group; 18-1. Upper limit liquid level sensor; 18-2. Lower limit liquid level sensor; 18-3. Over-range liquid level sensor; 21. Aeration hole; 61. Absorption liquid replenishment port. DETAILED DESCRIPTION

[0026] Example 1

[0027] In existing technology, the filtration device is directly connected to the vacuum pump via a rubber hose. When the drawn air passes through the heated sample, it carries a certain amount of high-temperature vapor from the lubricating oil and solvent oil, forming a high-temperature oil mist. This high-temperature oil mist, when directly drawn into the vacuum pump without separation, accumulates and condenses over time, corroding vacuum pump components and clogging the filtration line, leading to poor vacuum pump performance and even damage.

[0028] Therefore, see Figure 1 This embodiment discloses a laboratory condensation absorption purification device, which includes a hollow condenser shell 1, an aeration air inlet pipe 2, and one or more horizontally arranged condensed water pipe layers 3.

[0029] See also Figure 1 The hollow condenser shell 1 is provided with a top air outlet 11, and the inner cavity of the condenser shell 1 is provided with an absorption purification zone 12 and a condensation separation zone 13 from bottom to top, and the absorption purification zone 12 is used to accommodate the absorption liquid.

[0030] See also Figure 1 The aeration inlet pipe 2 includes an aeration hole 21 connected to the absorption and purification zone 12. The aeration hole 21 is used to introduce air carrying high-temperature oil mist into the absorption liquid in the absorption and purification zone 12 in the form of bubbles; the absorption liquid at least partially absorbs the oil mist in the air carrying high-temperature oil mist.

[0031] See also Figure 1 One or more layers of transversely arranged condensate pipes 3 are spaced apart from each other in the condensation separation zone 13 from top to bottom. Air absorbed by the absorption liquid flows through the transversely arranged condensate pipes 3 for heat exchange, and at least part of the oil mist condenses from the air absorbed by the absorption liquid and flows back into the absorption liquid in the absorption purification zone 12. The air after heat exchange flows out from the top air outlet 11.

[0032] In this embodiment, the main component of the oil mist is hydrocarbon substances, and the absorption liquid is solvent oil or toluene that meets the requirements of SH0004 standard.

[0033] In this embodiment, considering the characteristics of small laboratory sample processing volume and small amount of condensate, the absorption and purification zone and the condensation and separation zone are set in the same inner cavity, with condensation in the upper half and absorption in the lower half.

[0034] See also Figure 1 When in use, the aeration inlet pipe 2 is connected to the external filtration device, and the top air outlet 11 is connected to the inlet of the vacuum pump. The air carrying high-temperature oil mist in the filtration device is sucked into the aeration inlet pipe 2. Since the aeration inlet pipe 2 is provided with aeration holes, the air carrying high-temperature oil mist escapes evenly in the form of bubbles. As the air rises, the oil mist in the air is partially absorbed by the absorption liquid and thus trapped in the absorption liquid. The air absorbed by the absorption liquid continues to rise and flows through the laterally arranged condensation water pipe layer 3 for heat exchange. At least part of the oil mist condenses from the air after being absorbed by the absorption liquid and flows back to the absorption liquid in the absorption purification area 12. The air after heat exchange flows out from the top air outlet 11 to the vacuum pump.

[0035] It should be understood that by providing a sufficient number of transversely arranged condensation water pipe layers 3, it is ensured that the oil mist in the air after being absorbed by the absorption liquid is fully condensed.

[0036] In some examples, the transversely arranged condensing water pipe layer 3 includes a plurality of transversely arranged condensing water pipes, and the plurality of condensing water pipes are arranged at intervals.

[0037] The condensing water pipe includes a water inlet and a water outlet, both of which extend outside the condenser shell 1. Cooling water enters from the water inlet, flows through the inside of the condensing water pipe, and flows out from the water outlet.

[0038] For some examples, see Figure 1 One end of the aeration inlet pipe 2 extends below the absorption liquid level in the absorption purification zone 12, and the other end is located outside the condenser shell 1 for connection to the suction filtration device. Aeration holes 21 are provided on the pipe body of the aeration inlet pipe 2 located in the absorption purification zone 12.

[0039] For some examples, see Figure 1 The bottom of the condenser shell 1 is also provided with a drain port 14 that can be opened and closed, and the side wall of the condenser shell 1 is also provided with an absorption liquid replenishing port 15 that can be opened and closed.

[0040] For some examples, see Figure 1 The device includes a drain valve 16 for controlling the opening and closing of the drain port 14. The device also includes a waste liquid collection tank 4. The inlet of the drain valve 16 is connected to the drain port 14, and the outlet of the drain valve 16 is connected to the waste liquid collection tank 4 through a pipeline.

[0041] For some examples, see Figure 1 The device includes a refill valve 17 for controlling the opening and closing of the absorption liquid refill port 15. The device also includes an absorption liquid storage tank 6. The inlet of the refill valve 17 is connected to the absorption liquid storage tank 6 through a pipeline, and the outlet of the refill valve 17 is connected to the absorption liquid refill port 15. The top of the absorption liquid storage tank 6 is provided with an openable and closable absorption liquid replenishment port 61, which is used to add absorption liquid to the absorption liquid storage tank 6. In some examples, see Figure 1 The absorption liquid outlet of the absorption liquid storage tank 6 is an opening and closing outlet with a valve.

[0042] For some examples, see Figure 1 The device also includes a liquid level sensor assembly 18, which includes an upper limit liquid level sensor 18-1, a lower limit liquid level sensor 18-2, and an over-range liquid level sensor 18-3. The device is configured to control the opening and closing of the drain valve 16 and the refill valve 17 based on the detection results of the upper limit liquid level sensor 18-1, the lower limit liquid level sensor 18-2, and the over-range liquid level sensor 18-3.

[0043] For some examples, see Figure 1The device further comprises a drainage pump 5, which is installed on a pipeline connecting the outlet of the drainage valve 16 and the waste liquid collecting tank 4. The drainage pump 5 is interlocked with the drainage valve 16.

[0044] For some examples, see Figure 1 The device further comprises a rehydration pump 7, which is installed on a pipeline connecting the outlet of the rehydration valve 17 and the absorption liquid storage tank 6. The rehydration pump 7 is interlocked with the rehydration valve 17.

[0045] When the absorption liquid level falls below the lower limit, replenishment is required. Liquid level sensor 18-2 activates, opening refill valve 17 and starting refill pump 7. When the absorption liquid level reaches the upper limit, liquid level sensor 18-1 activates, closing refill valve 17 and stopping refill pump 7. This enables automatic replenishment of the absorption liquid.

[0046] When the absorption liquid level reaches the over-range limit, the liquid level sensor 18-3 is activated, and the liquid replenishing valve 17 is controlled to close, and the liquid replenishing pump 7 is stopped. The drain valve 16 is opened and the liquid replenishing pump 7 is started. When the absorption liquid level reaches the upper limit again, the drain valve 16 and the liquid replenishing pump 7 are closed.

[0047] This embodiment reduces the labor cost of manual fluid replenishment and drainage by realizing the functions of automatic fluid drainage and automatic absorption fluid replenishment.

[0048] Both the infusion pump 7 and the drainage pump 5 can be manually operated, and the automatic interlocking fails when they are manually opened and closed. The drainage valve 16 is also used for manual start-up when the absorption liquid fails.

[0049] This utility model provides a concept and method for a laboratory condensation absorption purification device. There are many methods and approaches to implement this technical solution. The above is only a preferred embodiment of the utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the utility model, and such improvements and modifications should also be considered within the scope of protection of the utility model. Any components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A laboratory condensation absorption purification device, characterized in that: include: A hollow condenser shell (1) is provided with a top air outlet (11), and an inner cavity of the condenser shell (1) is provided with an absorption purification zone (12) and a condensation separation zone (13) from bottom to top, wherein the absorption purification zone (12) is used to accommodate absorption liquid; an aeration inlet pipe (2), comprising an aeration hole (21) communicating with the absorption and purification zone (12); and more than one layer of transversely arranged condensation water pipe layers (3), which are spaced apart from top to bottom in the condensation separation zone (13).

2. The laboratory condensation absorption purification device according to claim 1, characterized in that: The transversely arranged condensing water pipe layer (3) comprises a plurality of transversely arranged condensing water pipes, and the plurality of condensing water pipes are arranged at intervals.

3. The laboratory condensation absorption purification device according to claim 1, characterized in that: The bottom of the condenser shell (1) is also provided with an openable and closable liquid drain port (14), and the side wall of the condenser shell (1) is also provided with an openable and closable absorption liquid replenishing port (15).

4. The laboratory condensation absorption purification device according to claim 3, characterized in that: The device comprises a drain valve (16) for controlling the opening and closing of the drain port (14); the device also comprises a waste liquid collection tank (4); the inlet of the drain valve (16) is connected to the drain port (14); and the outlet of the drain valve (16) is connected to the waste liquid collection tank (4) through a pipeline.

5. The laboratory condensation absorption purification device according to claim 4, characterized in that: The device comprises a rehydration valve (17) for controlling the opening and closing of the absorption liquid rehydration port (15); the device also comprises an absorption liquid storage tank (6); the inlet of the rehydration valve (17) is connected to the absorption liquid storage tank (6) through a pipeline, and the outlet of the rehydration valve (17) is connected to the absorption liquid rehydration port (15).

6. The laboratory condensation absorption purification device according to claim 5, characterized in that: The device also includes an upper limit liquid level sensor (18-1), a lower limit liquid level sensor (18-2) and an over-range liquid level sensor (18-3). The device is configured to control the on / off of the drain valve (16) and the refill valve (17) according to the upper limit liquid level sensor (18-1), the lower limit liquid level sensor (18-2) and the over-range liquid level sensor (18-3).

7. The laboratory condensation absorption purification device according to claim 4, characterized in that: It also includes a drainage pump (5), which is installed on a pipeline connecting the outlet of the drainage valve (16) and the waste liquid collection tank (4).

8. The laboratory condensation absorption purification device according to claim 5, characterized in that: It also includes a fluid replenishing pump (7), which is installed on a pipeline connecting the outlet of the fluid replenishing valve (17) and the absorption liquid storage tank (6).

9. The laboratory condensation absorption purification device according to claim 1, characterized in that: The absorption liquid is solvent oil or toluene that meets the requirements of SH0004 standard.

10. The laboratory condensation absorption purification device according to claim 1, characterized in that: One end of the aeration inlet pipe (2) extends below the absorption liquid level in the absorption purification zone (12), and the other end is located outside the condenser shell (1); the aeration hole (21) is provided on the pipe body of the aeration inlet pipe (2) located in the absorption purification zone (12).

Images