CN216208439U - Liquid level exchanger capable of adjusting temperature - Google Patents

Abstract

The utility model discloses a temperature-adjustable liquid level exchanger.A water inlet pipe is communicated with an upper-layer solution barrel through a top plate three-way valve and a liquid inlet pipe, a top plate is fixed at the opening at the top of the upper-layer solution barrel, the upper-layer solution barrel is connected with a lower-layer solution barrel, the opening at the bottom of the lower-layer solution barrel is fixed on a bottom plate, a first hole is arranged on the bottom plate, and a lower liquid guide pipe is communicated with the lower-layer solution barrel through the first hole and the bottom plate three-way valve; the heat conduction wrapping belt is wrapped on the outer walls of the lower layer solution barrel and the upper layer solution barrel, a cavity outlet and a cavity inlet are formed in the side face of the heat conduction wrapping belt, and an outlet of the water tank is connected with the refrigerating equipment and the heating equipment through a valve, a first peristaltic pump and a medium transmission three-way valve; the cavity inlet and the cavity outlet on the heat conduction wrapping belt are connected with heating equipment and refrigerating equipment through liquid guide pipes, and the exchanger can realize the control of the temperature of the infiltration garbage filtrate.

Description

A liquid level exchanger with adjustable temperature

technical field

The utility model belongs to a liquid level exchanger, in particular to a temperature-adjustable liquid level exchanger.

Background technique

Landfill disposal is currently the main method of municipal solid waste disposal. To prevent contamination of groundwater and soil around landfills, modern landfills often use compacted clay liners for impermeability. However, the compacted clay liner is a porous material, which cannot completely prevent the outward diffusion of landfill leachate. Under the action of hydraulic gradient, landfill leachate can migrate outward through the compacted clay liner. In order to evaluate the barrier properties of the compacted clay liner to landfill leachate, it is necessary to measure the permeability coefficient of the compacted clay liner.

At present, the permeability coefficient of compacted clay liner is mainly measured by flexible wall permeameter. In the measurement process, in order to avoid the contamination of the control panel of the flexible wall permeameter by landfill leachate, the flexible wall permeameter must be installed with a liquid surface pressure exchanger. However, the existing liquid surface pressure exchanger can only realize the pressure transfer at the water-landfill leachate interface, but cannot adjust the temperature of the landfill leachate.

In fact, in a real landfill, the temperature of the landfill leachate is constantly changing with the change of season and landfill time; the constant change of temperature will change the viscosity of the landfill leachate, which will ultimately affect the compaction The permeability coefficient of the clay liner.

Based on the above analysis, it is necessary to design a liquid level exchanger with temperature adjustment function, which can precisely control the temperature of the landfill leachate during the penetration test, so as to realize the accurate determination of the permeability coefficient of the compacted clay liner.

Utility model content

The purpose of this utility model is to overcome the above-mentioned shortcomings of the prior art, and to provide a temperature-adjustable liquid level exchanger, which can realize the temperature control of the permeated garbage filtrate.

In order to achieve the above purpose, the temperature-adjustable liquid level exchanger of the present invention includes an exchanger body and a temperature adjustment system, and the exchanger body includes a water inlet pipe, a top plate three-way valve, a liquid inlet pipe, an upper layer solution bucket, The top plate, the lower solution barrel, the bottom plate and the lower liquid conduit; the temperature adjustment system includes the heat conduction wrapping belt, the water tank, the valve, the first peristaltic pump, the medium transmission three-way valve, the refrigeration equipment and the heating equipment;

The water inlet pipe is communicated with the upper layer solution barrel through the top plate three-way valve and the liquid inlet pipe, the top plate is fixed at the top opening of the upper layer solution barrel, the upper layer solution barrel is connected with the lower layer solution barrel, and the bottom opening of the lower layer solution barrel is fixed on the bottom plate, The bottom plate is provided with a first hole, and the lower liquid conduit is communicated with the lower layer solution tank through the first hole and the three-way valve of the bottom plate;

The heat conduction wrapping tape is wrapped on the outer wall of the lower solution bucket and the upper solution bucket. The side of the heat conduction wrapping tape is provided with a cavity outlet and a cavity inlet, and the outlet of the water tank is connected to the refrigerating equipment through the valve, the first peristaltic pump and the medium transmission three-way valve. connected with heating equipment;

The cavity inlet and the cavity outlet on the heat conduction wrapping tape are both connected with the heating equipment and the cooling equipment through the liquid conduit.

The top plate, the upper layer solution barrel, the lower layer solution barrel and the bottom plate are fixedly connected by connecting screws, gaskets, screw bolts and pillars.

A water flow direction indicator is arranged on the catheter.

The bottom plate is provided with a second hole for the connecting screw to pass through.

The three-way valve on the bottom plate and the bottom plate and the three-way valve on the top plate and the top plate are all connected by bolts.

The upper layer solution barrel and the lower layer solution barrel are connected by an acid and alkali resistant rubber diaphragm.

The thermally conductive wrapping tape is wrapped on the outer walls of the lower-layer solution barrel and the upper-layer solution barrel through a buckle.

The bottom plate is provided with a groove, the groove is an annular structure, and the lower end of the lower layer solution barrel is embedded in the groove.

The utility model has the following beneficial effects:

During the specific operation of the temperature-adjustable liquid level exchanger of the present invention, the heat medium or the cold medium is passed into the heat conduction wrapping belt through the heating equipment and the refrigeration equipment, and the landfill leakage liquid is heated through the heat conduction wrapping belt. or cooling to achieve the adjustability of landfill leachate temperature.

Further, the utility model adopts a detachable structure. After the test is completed, the heat conduction wrapping belt, the upper layer solution barrel, the lower layer solution barrel, the top plate and the bottom plate are separated by connecting buckles, connecting screws and struts. Cleaning is simple and convenient, effectively avoiding the last time Test residual liquid causes test error.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the sectional view of the 1-1 direction in Fig. 1;

Fig. 3 is the assembly schematic diagram of the exchanger body;

4 is a schematic diagram of the thermally conductive wrapping tape 9;

Fig. 5 is the working schematic diagram of the temperature regulation system;

Among them, 1 is the connecting screw, 2 is the screw bolt, 3 is the bolt, 4 is the liquid inlet pipe, 5-1 is the top plate three-way valve, 5-2 is the bottom three-way valve, 6 is the top plate, and 7 is the upper layer solution bucket 7 , 8 is the cavity inlet, 9 is the heat conduction wrapping tape, 10 is the cavity outlet, 11 is the lower catheter, 12 is the bottom plate, 13 is the pillar, 14 is the buckle, 15 is the catheter, 16 is the water flow direction indication 17 is the water inlet pipe, 18 is the acid and alkali resistant rubber diaphragm, 19 is the lower solution tank, 20 is the solution output pipe, 21 is the first hole, 22 is the groove, 23 is the second hole, 24 is the gasket, 25 is a water tank, 26 is a valve, 27 is a first peristaltic pump, 28 is a heating device, 29 is a medium transmission three-way valve, and 30 is a refrigeration device.

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described The embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the disclosure of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts disclosed in the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

The accompanying drawings show a schematic structural diagram of an embodiment according to the disclosure of the present invention. The figures are not to scale, some details have been exaggerated for clarity, and some details may have been omitted. The shapes of various regions and layers shown in the figures and their relative sizes and positional relationships are only exemplary, and in practice, there may be deviations due to manufacturing tolerances or technical limitations, and those skilled in the art should Regions/layers with different shapes, sizes, relative positions can be additionally designed as desired.

Referring to FIGS. 1 to 5 , the temperature-adjustable liquid level exchanger according to the present invention includes an exchanger body and a temperature adjustment system. The exchanger body includes a water inlet pipe 17 and a top plate three-way valve. 5-1, the liquid inlet pipe 4, the upper layer solution barrel 7, the top plate 6, the lower layer solution barrel 19, the bottom plate 12 and the lower liquid conduit 11; the temperature adjustment system includes the heat conduction wrapping belt 9, the water tank 25, the valve 26, the first peristaltic pump 27. Medium transmission three-way valve 29, refrigeration equipment 30 and heating equipment 28;

The outlet of the water inlet pipe 17 is communicated with the top plate 6 through the top plate three-way valve 5-1 and the liquid inlet pipe 4. The top plate 6 is fixed at the top opening of the upper layer solution barrel 7, and is seamlessly spliced with the top plate 6. The upper layer solution barrel 7 is connected to the lower layer. The solution barrels 19 are connected by an acid-resistant and alkali-resistant rubber diaphragm 18 .

The bottom opening of the lower layer solution barrel 19 is fixed on the bottom plate 12 , and the top plate 6 , the upper layer solution barrel 7 , the lower layer solution barrel 19 and the bottom plate 12 are fixedly connected by connecting screws 1 , gaskets 24 , screw bolts 2 and pillars 13 .

The heat conduction wrapping tape 9 is wrapped on the outer wall of the lower solution bucket 19 and the upper solution bucket 7 through the buckle 14. The side of the heat conduction wrapping tape 9 is provided with a cavity outlet 10 and a cavity inlet 8, and the outlet of the water tank 25 passes through the valve 26, the first A peristaltic pump 27 and a medium transfer three-way valve 29 are connected to the refrigeration equipment 30 and the heating equipment 28 .

The acid-resistant and alkali-resistant rubber diaphragm 18 is a flexible material that can be expanded under pressure. The lower solution bucket 19 is filled with landfill leachate and then pressurized with water in the upper solution bucket 7, so that the lower solution bucket 19 can penetrate the landfill leachate into the soil.

The bottom plate 12 is provided with a groove 22, the groove 22 is an annular structure, the lower end of the lower solution bucket 19 is embedded in the groove 22, the bottom plate 12 is provided with a first hole 21, the lower liquid conduit 11 passes through The first hole 21 communicates with the lower solution barrel 19 to achieve the integrity and sealing of the internal structure.

The cavity inlet 8 and the cavity outlet 10 on the heat conduction wrapping belt 9 are connected to the heating device 28 and the cooling device 30 through a liquid conduit, so that the temperature of the landfill leachate can be adjusted.

The lower layer solution bucket 19 is communicated with the lower catheter 11 through the first hole 21 and the bottom three-way valve 5-2, wherein the bottom three-way valve 5-2 has an unconnected port, and when working, use a syringe to pass through the bottom three-way valve. The unconnected port on the through valve 5-2 is filled with landfill leachate into the lower solution barrel 19, and after the landfill leachate is filled with the lower solution barrel 19, the bottom three-way valve 5-2 is turned to the closed state, wherein, after the landfill leachate is filled with the lower solution barrel 19, When the landfill leachate is injected into the lower layer solution barrel 19, the top plate three-way valve 5-1 is twisted to the unconnected port so as to discharge the air of the upper layer solution barrel 7. When the solution is output, the top plate three-way valve 5-1 is twisted to the water inlet pipe. 17 In the connection state with the liquid inlet pipe 4, the bottom plate three-way valve 5-2 is twisted to the connection state between the lower liquid conduit 11 and the solution output pipe 20, so as to realize the convenience of solution input and output.

The heat transfer medium in the present invention is water, and the water output from the water tank 25 enters the heating equipment 28 or the cooling equipment 30 through the first peristaltic pump 27. The heating equipment 28 adopts electric heating water, and when the temperature reaches the set temperature, use The second peristaltic pump enters the hot water into the heat conduction wrapping belt 9 through the liquid conduit 15 to achieve the purpose of heating the landfill leachate; the refrigeration equipment 30 adopts a Freon compressor for refrigeration, and when the temperature of the aqueous solution reaches the set temperature, the third peristaltic pump is used. The pump sends cold water into the heat conduction wrapping belt 9 through the liquid conduit 15, and achieves the purpose of refrigerating the landfill leachate through the circulation of water, thereby realizing the controllability of the landfill leakage temperature.

The guide tube 15 is provided with a water flow direction indicator 16; the bottom plate 12 is provided with a second hole 23 for the connecting screw 1 to pass through; between the bottom plate three-way valve 5-2 and the bottom plate 12 and the top plate three-way valve 5- 1 and the top plate 6 are connected by bolts 3.

The realization process of the present utility model is:

Step 1 Install the solution tank

The lower layer solution bucket 19 is placed in the groove 22 on the bottom plate 12, and then the acid and alkali resistant rubber diaphragm 18, the upper layer solution bucket 7 and the top plate 6 are installed in sequence, and are fixed and placed on the connecting screw 1 and the pillar 13. on flat surface.

Step 2: Inject landfill leachate and connect the permeameter

After the installation is completed, the landfill leakage liquid is injected through the bottom three-way valve 5-2, the catheter 1 and the solution output pipe 20. The air in the upper solution tank 7 is discharged to facilitate the input of landfill leakage liquid, and the bottom three-way valve 5-2 is closed after the input is completed. Connect the water inlet pipe 17 to the water pressure pipe on the control panel of the permeameter, and adjust the three-way valve 5-1 on the top plate to facilitate subsequent tests.

Step 3 Install the temperature regulation system

The heat-conducting wrapping tape 9 is wrapped around the outside of the lower-layer solution bucket 19 and the upper-layer solution bucket 7 through the buckle 14 , and the lower part of the heat-conducting wrapping tape 9 is in contact with the bottom plate 12 . Then, the cavity inlet 8 and the cavity outlet 10 of the heat conduction wrapping tape 9 are connected to the heating device 28 and the cooling device 30 through the liquid conduit 15 . The heating device 28 and the cooling device 30 are connected to the water tank 25 .

Step 4: Infiltrate soil samples with landfill leachate at adjustable temperature.

Start the temperature adjustment system, when the temperature reaches the required temperature and remains stable, adjust the top plate three-way valve 5-1 and the bottom plate three-way valve 5-2, and start the permeameter to test the soil sample infiltrated by the landfill leachate. The test is completed Then close the valve 26 and the temperature adjustment system.

Claims (8)

1. A temperature-adjustable liquid level exchanger, characterized in that it comprises an exchanger body and a temperature adjustment system, and the exchanger body comprises a water inlet pipe (17), a top plate three-way valve (5-1), a liquid inlet Pipe (4), upper layer solution barrel (7), top plate (6), lower layer solution barrel (19), bottom plate (12) and lower liquid conduit (11); the temperature adjustment system includes a heat conduction wrapping belt (9), a water tank ( 25), valve (26), first peristaltic pump (27), medium transmission three-way valve (29), refrigeration equipment (30) and heating equipment (28); The water inlet pipe (17) is communicated with the upper layer solution barrel (7) through the top plate three-way valve (5-1) and the liquid inlet pipe (4), and the top plate (6) is fixed at the top opening of the upper layer solution barrel (7). The solution bucket (7) is connected with the lower layer solution bucket (19), the bottom opening of the lower layer solution bucket (19) is fixed on the bottom plate (12), the bottom plate (12) is provided with a first hole (21), and the lower liquid conduit (11) communicate with the lower layer solution barrel (19) through the first hole (21) and the bottom three-way valve (5-2); The heat conduction wrapping tape (9) is wrapped on the outer walls of the lower layer solution bucket (19) and the upper layer solution bucket (7). The outlet of (25) is connected with the refrigeration equipment (30) and the heating equipment (28) through the valve (26), the first peristaltic pump (27) and the medium transmission three-way valve (29); The cavity inlet (8) and the cavity outlet (10) on the heat conduction wrapping tape (9) are both connected to the heating device (28) and the cooling device (30) through the liquid conduit (15). 2. The temperature-adjustable liquid level exchanger according to claim 1, wherein the top plate (6), the upper layer solution barrel (7), the lower layer solution barrel (19) and the bottom plate (12) pass through the connecting screw (1) ), gaskets (24), screw bolts (2) and pillars (13) are fixedly connected. 3 . The temperature-adjustable liquid level exchanger according to claim 1 , wherein a water flow direction indicator ( 16 ) is provided on the liquid conduit ( 15 ). 4 . 4 . The temperature-adjustable liquid level exchanger according to claim 2 , wherein the bottom plate ( 12 ) is provided with a second hole ( 23 ) for the connecting screw ( 1 ) to pass through. 5 . 5. The temperature-adjustable liquid level exchanger according to claim 1, characterized in that, between the bottom plate three-way valve (5-2) and the bottom plate (12) and between the top plate three-way valve (5-1) and the top plate (6) are connected by bolts (3). 6 . The temperature-adjustable liquid level exchanger according to claim 1 , wherein the upper layer solution barrel ( 7 ) and the lower layer solution barrel ( 19 ) are connected through an acid and alkali resistant rubber diaphragm ( 18 ). 7 . 7. The temperature-adjustable liquid level exchanger according to claim 1, wherein the heat conduction wrapping tape (9) is wrapped in the lower layer solution barrel (19) and the upper layer solution barrel (7) by the buckle (14). on the outer wall. 8. The temperature-adjustable liquid level exchanger according to claim 1, wherein the bottom plate (12) is provided with a groove (22), and the groove (22) is an annular structure, and the lower layer solution barrel ( The lower end of 19) is embedded in the groove (22).

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