CN205659459U - Novel suction flask - Google Patents

Abstract

The utility model discloses a novel suction filter bottle, which comprises a Buchner funnel, a rubber stopper, an air suction pipe, a suction filter bottle body, a liquid discharge valve, a collection bottle and a temperature control tube. The bottom of the suction filter bottle body is high in the middle and low in the edge The boss structure is connected with the suction filter bottle in an arc shape. The collection bottle is arranged on the boss inside the suction filter bottle. A temperature control tube is coiled around the outside of the collection bottle, and the temperature control tube is provided with a liquid inlet and a liquid outlet, and the temperature of the filtrate in the collection bottle is controlled by circulating water at a certain temperature. The bottom of the collection bottle is provided with a discharge pipe leading to the outside of the suction filter bottle, and the discharge of the filtrate is controlled by the discharge valve. The utility model reduces cross-contamination to the greatest extent, is especially suitable for filtrate heating or cooling temperature control operations, and greatly improves the working efficiency of suction filtration.

Description

A new type of suction filter bottle

technical field

The utility model belongs to the technical field of chemical experiment equipment, and relates to a component for air suction and filtration, in particular to a novel suction filter bottle.

Background technique

Suction filter bottle, as a device to speed up the flow rate to form a vacuum filtration device, is widely used in chemical plants, pharmaceutical factories, petrochemicals, and laboratories of scientific research units for vacuum filtration operations of solutions. The current suction filter bottle is used in conjunction with the Buchner funnel, and there is a suction filter tip that can be connected with a vacuum pump on the upper side of the suction filter bottle body. During suction filtration, the suction filter bottle is connected to an external vacuum pump to pump air and reduce pressure, and the liquid quickly flows from the Buchner funnel to the filtrate bottle through the filter paper. During the use of the existing suction filtration bottle, the circulating liquid in the vacuum pump is easy to flow back to cause pollution to the filtered solution; the suction filtration bottle mouth is small, and it is inconvenient to clean; every time a filtration operation is performed, the suction pipe must be pulled out, and the vacuum pump must be stopped , It is inconvenient to disassemble and assemble; the existing suction filter bottle can only be used for suction filtration at normal temperature, and is not suitable for suction filtration of maintaining high temperature or cooling liquid.

Contents of the invention

In view of the above problems, the utility model provides a new type of suction filter bottle, which can be used in experiments where the filtrate needs to be heated or cooled to control the temperature, so as to facilitate the suction filtration operation and improve the working efficiency of the suction filtration.

The suction filter bottle includes Buchner funnel, rubber stopper, suction tube, suction filter bottle body, liquid discharge valve, collection bottle and temperature control tube. body arc connection. The collection bottle is arranged on the boss inside the suction filter bottle body. A temperature control tube is coiled around the outside of the collection bottle, and the temperature control tube is provided with a liquid inlet and a liquid outlet, and the temperature of the filtrate in the collection bottle is controlled by circulating water at a certain temperature. The bottom of the collection bottle is provided with a discharge pipe leading to the outside of the suction filter bottle, and the discharge of the filtrate is controlled by the discharge valve.

The liquid distributor is arranged at the liquid outlet of the Buchner funnel.

The vertical height difference of the boss structure at the bottom of the suction filtration bottle is 2-5cm.

The mouth of the suction filtration bottle and the mouth of the collection bottle have the same or little difference in size, which facilitates the cleaning of the collection bottle.

One side of the suction filter bottle body is provided with a suction pipe, and the suction pipe is also provided with an air release valve for exhausting.

The mouth of the suction filtration bottle and the mouth of the collection bottle are wide mouths.

The bottom contact surface of the suction filter bottle is in the shape of an arc.

The beneficial effect that the utility model implements is:

1. The nesting design of the filtration bottle and the collection bottle of the filtered solution prevents the filtrate from splashing during the suction filtration, avoids the cross-contamination of the filtered solution by the circulating liquid of the vacuum pump, and the device is easy to scrub after use;

2. The filtrate is directly filtered into the collection bottle. The bottom of the collection bottle is provided with a discharge pipe leading to the outside of the filter bottle. After the solution is full, the discharge of the filtrate can be controlled by opening or closing the discharge valve. It is easy to use and does not need to be used every time The entire device is disassembled every time;

3. There is an air release valve on the exhaust pipe, so you don’t have to pull out the air extraction pipe every time, stop the vacuum pump, and open the air release valve directly to perform another filtering operation;

4. Especially suitable for continuous suction filtration test of samples: such as resin elution, sample cleaning, etc., with high work efficiency.

5. The Buchner funnel is equipped with a liquid distributor at the liquid outlet. When the filtrate needs to be heated or cooled, the filtrate is sprayed and washed out in the form of a thin film around the four sides under the action of the distributor, and accumulates on the wall of the collection bottle to form a film. Flow down, which greatly promotes the heat exchange effect, ensuring the heating or cooling effect.

Description of drawings

Fig. 1 is the structural representation of a kind of novel suction filter bottle

Figure 2 is a schematic diagram of another Buchner funnel outlet type design

1. Buchner funnel; 2. Rubber stopper; 3. Filtration bottle; 4. Collection bottle; 5. Liquid inlet/outlet; 6. Temperature control tube; ;9. Vent valve; 10. Suction pipe; 11. Bottle bottom; 13. Liquid distributor.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Figure 1 and Figure 2, the suction filter bottle includes a Buchner funnel (1), a rubber stopper (2), a suction filter bottle body (3), an air release valve (9), a suction pipe (10), and a bottle bottom ( 11), drain valve (7), collection bottle (4) and temperature control tube (6), the bottom of the suction filter bottle (3) is a boss structure with a high middle part and a low edge. The collecting bottle (4) is arranged on the boss inside the suction filtration bottle body (3). The filter bottle body (3) and the filtered solution collection bottle (4) are nested to prevent the filtrate from splashing during the suction filtration, avoiding the cross-contamination of the filtered solution by the circulating liquid of the vacuum pump, and the device is easy to scrub after use. The outer coil of the collection bottle (4) is provided with a temperature control tube (6), and the temperature control tube (6) is provided with an inlet/outlet port (5) and an outlet/inlet port (8), which are formed and collected by water circulation at a certain temperature The filtrate in the bottle (4) is subjected to heat exchange to finally control its temperature. The bottom of the collection bottle (4) is provided with a discharge pipe leading to the outside of the suction filter bottle, and a discharge valve (7) is provided to control the discharge of the filtrate. When the solution is full, cooperate with the discharge valve (9) Use, opening or closing the discharge valve can control the discharge of the filtrate, so as to realize the discharge of the filtrate without disassembly.

The liquid distributor (13) is arranged at the liquid outlet of the Buchner funnel (1).

The vertical height difference of the boss structure at the bottom of the suction filter bottle body (3) is 2-5cm to ensure that the liquid is drained thoroughly.

The size of the mouth of the suction filtration bottle (3) is the same or similar to that of the collection bottle (4), which facilitates the cleaning of the collection bottle.

One side of the suction filter body (3) is provided with a suction pipe, and the suction pipe is also provided with a vent valve (9) for exhaust, which is a three-way device for the vent hole, which is convenient for the operation of deflation after suction filtration, and does not need to be opened every time. Remove the exhaust pipe.

The mouth of the suction filtration bottle (3) and the mouth of the collection bottle (4) are wide-mouthed, which facilitates the cleaning of the collection bottle.

The contact surface between the bottom of the suction filter bottle and the bottom of the bottle (11) is in the shape of an arc to ensure stable placement.

It is especially worth noting that the utility model can adopt the common Buchner funnel (1) with a round tube design for the liquid outlet, and the utility model can also use the Buchner funnel (1) to set the liquid distribution on the basis of the liquid outlet. Device (13), its structure is as shown in Figure 1 and Figure 2. When the filtrate needs to be heated or cooled, the filtrate is sprayed and washed out in the form of a film around the distributor under the action of the distributor, and accumulates on the wall of the collection bottle to form a film and flow down, which greatly promotes the heat exchange and ensures the heating or cooling effect.

Claims (7)

1. A novel suction filter bottle, comprising a Buchner funnel, a rubber stopper, an exhaust pipe, a suction filter bottle body, a drain valve, a collection bottle and a temperature control tube, characterized in that the bottom of the suction filter bottle body is the middle The boss structure with high height and low edge, the collection bottle is set on the boss inside the suction filter bottle, the outside of the collection bottle is coiled with a temperature control tube, and the temperature control tube is provided with a liquid inlet And the liquid outlet, the filtrate temperature in the collection bottle is controlled by a certain temperature of water circulation; the bottom of the collection bottle is provided with a discharge pipeline leading to the outside of the suction filtration bottle, and the discharge of the filtrate is controlled by the discharge valve. 2. The novel suction filter flask according to claim 1, further comprising a liquid distributor for promoting heat exchange, and said liquid distributor is arranged at the liquid outlet of the Buchner funnel. 3. The novel suction filtration bottle according to claim 1, characterized in that, the vertical height difference of the boss structure at the bottom of the suction filtration bottle is 2-5 cm. 4. The novel suction filtration bottle according to claim 1, characterized in that the mouth of the suction filtration bottle and the mouth of the collection bottle have the same size. 5. The novel suction filter bottle according to claim 2, characterized in that, one side of the suction filter bottle body is provided with a suction pipe, and the suction pipe is also provided with an air release valve for exhaust. 6. The novel suction filtration bottle according to claim 4, characterized in that, the mouth of the suction filtration bottle body and the mouth of the collecting bottle are wide-mouthed. 7. The novel filter bottle according to any one of claims 1-6, characterized in that, the contact surface at the bottom of the filter bottle is arc-shaped.