CN103585806A

CN103585806A - Suction filtration device and suction filtration method

Info

Publication number: CN103585806A
Application number: CN201310467912.5A
Authority: CN
Inventors: 张少庆; 王国平; 张玉霞
Original assignee: Northeast Institute of Geography and Agroecology of CAS
Current assignee: Northeast Institute of Geography and Agroecology of CAS
Priority date: 2013-10-10
Filing date: 2013-10-10
Publication date: 2014-02-19

Abstract

The invention relates to a suction filtration device and a suction filtration method. The suction filtration device comprises a circular scale hopper (1), a spring clamp (2), a liquid phase filtering membrane, a glass core hopper (3), a receiving bottle (4) and a vacuum pump, wherein a liner pipe (6) is arranged in a liner pipe tray (7), and both the liner pipe (6) and the liner pipe tray (7) are placed in the receiving bottle (4) at the same time. The lower part of the glass core hopper (3) is arranged in the liner pipe (6). The suction filtration device is ingenious in conception and easy to operate and use. The liner pipe and the liner pipe tray are additionally arranged based on existing suction filtration device, so that the suction filtrate enters into the liner pipe (6). According to the suction filtration method, when a suction filtration sample is changed, the liner pipe is just changed without cleaning the receiving bottle, so that the manpower and material resources are saved, and the work efficiency is greatly improved. Cross contamination among samples is avoided, and the experimental errors are reduced.

Description

Suction filtration device and suction filtration method

技术领域 technical field

本发明涉及一种抽滤装置及抽滤方法，属于实验方法技术领域。 The invention relates to a suction filtration device and a suction filtration method, belonging to the technical field of experimental methods.

背景技术 Background technique

分析测试工作中许多样品为固液混合物，如各种浸提液、废水、溶解液、泥浆、沉渣液等，需要对其固、液相进行分离后，分别对固相和液相进行测定。如图1所示，现有抽滤装置一般由真空泵和过滤装置组成（如北京京仪百方科技有限公司液，HPD系列无油真空泵，FB-01T过滤装置）。本发明提供一种抽滤装置包括圆形刻度漏斗1，弹簧夹2、液相过滤膜和玻璃砂芯漏斗3、接收瓶4和真空泵；玻璃砂芯漏斗3的上部有抽气短管5，液相过滤膜置于圆形刻度漏斗1和玻璃砂芯漏斗3之间，然后，通过弹簧夹2把圆形刻度漏斗1和玻璃砂芯漏斗3固定并连接，玻璃砂芯漏斗3的下部置于接收瓶4中，用橡胶管连接玻璃砂漏斗3上的抽气短管5与真空泵；抽滤进入到接收瓶中。接收瓶的容量分为1L，2L和5L。测定液相是需要将溶液从接收瓶中倒到比色管等容器内。日常测试工作中，过滤到接来说相对太少，而且要反复将接收瓶中溶液倒出和清洗接收瓶，同时使得工作强度变大，工作效率不高。而且，如果接收瓶冲洗不干净，还会使样品间交叉污染，增加了实验误差和不准确性。 Many samples in the analysis and testing work are solid-liquid mixtures, such as various extracts, waste water, solution, mud, sediment liquid, etc. It is necessary to separate the solid and liquid phases and then measure the solid and liquid phases respectively. As shown in Figure 1, the existing suction filtration device is generally composed of a vacuum pump and a filter device (such as Beijing Jingyi Baifang Technology Co., Ltd. liquid, HPD series oil-free vacuum pump, FB-01T filter device). The invention provides a suction filtration device comprising a circular graduated funnel 1, a spring clip 2, a liquid phase filter membrane and a glass sand core funnel 3, a receiving bottle 4 and a vacuum pump; The phase filter membrane is placed between the circular scale funnel 1 and the glass sand core funnel 3, then the circular scale funnel 1 and the glass sand core funnel 3 are fixed and connected by the spring clip 2, and the lower part of the glass sand core funnel 3 is placed In the receiving bottle 4, a rubber tube is used to connect the suction short tube 5 on the glass sand funnel 3 and the vacuum pump; suction filtration enters the receiving bottle. The capacity of the receiving bottle is divided into 1L, 2L and 5L. To measure the liquid phase, it is necessary to pour the solution from the receiving bottle into a container such as a colorimetric tube. In the daily test work, the filtration is relatively too small, and the solution in the receiving bottle must be poured out and cleaned repeatedly, which makes the work intensity increase and the work efficiency is not high. Moreover, if the receiving bottle is not rinsed cleanly, it will also cause cross-contamination between samples, increasing experimental errors and inaccuracies.

发明内容 Contents of the invention

为了解决在抽滤过程中要反复清洗接收瓶，实验误差大，工作强度高，工作效率低的问题，本发明提供一种抽滤装置及抽滤方法。 In order to solve the problems of repeated cleaning of the receiving bottle during the suction filtration process, large experimental errors, high work intensity and low work efficiency, the invention provides a suction filtration device and a suction filtration method.

the

本发明提供一种抽滤装置包括圆形刻度漏斗1，弹簧夹2、液相过滤膜和玻璃砂芯漏斗3、接收瓶4和真空泵；玻璃砂芯漏斗3的上部有抽气短管5，液相过滤膜置于圆形刻度漏斗1和玻璃砂芯漏斗3之间，然后，通过弹簧夹2把圆形刻度漏斗1和玻璃砂芯漏斗3固定并连接，玻璃砂芯漏斗3的下部置于接收瓶4中，用橡胶管连接玻璃砂漏斗3上的抽气短管5与真空泵；其特征在于，将衬管6置于衬管托7中，衬管托7用来将衬管6托起使管口与接收瓶4瓶口平齐，使衬管6不会在接收瓶4中倾倒并便于玻璃砂芯漏斗3的下部置于衬管6中接收滤液，两者同时置于接收瓶4中，玻璃砂芯漏斗3的下部置于衬管6中。所述的衬管6优选比色管。 The invention provides a suction filtration device comprising a circular graduated funnel 1, a spring clip 2, a liquid phase filter membrane and a glass sand core funnel 3, a receiving bottle 4 and a vacuum pump; The phase filter membrane is placed between the circular scale funnel 1 and the glass sand core funnel 3, then the circular scale funnel 1 and the glass sand core funnel 3 are fixed and connected by the spring clip 2, and the lower part of the glass sand core funnel 3 is placed In the receiving bottle 4, a rubber tube is used to connect the short suction pipe 5 on the glass sand funnel 3 and the vacuum pump; it is characterized in that the liner 6 is placed in the liner holder 7, and the liner holder 7 is used to support the liner 6 Make the mouth of the nozzle flush with the mouth of the receiving bottle 4, so that the liner 6 will not fall in the receiving bottle 4 and facilitate the lower part of the glass sand core funnel 3 to be placed in the liner 6 to receive the filtrate, and both are placed in the receiving bottle 4 at the same time , the lower part of the glass sand core funnel 3 is placed in the liner 6. The liner 6 is preferably a colorimetric tube.

基于所述的一种抽滤装置的一种抽滤方法，其特征在于，步骤和条件如下: A kind of suction filtration method based on described a kind of suction filtration device, it is characterized in that, steps and conditions are as follows:

将衬管托7放入到接收瓶4中，选择衬管6，衬管6插入到衬管托7中，砂漏斗3下端插入接收瓶4中，同时玻璃砂漏斗下端出液口插入到衬管6中，在玻璃砂漏斗3上表面放上滤膜，扣上圆形刻度漏斗1用弹簧夹2将圆形刻度漏斗1和玻璃砂漏斗3固定，用橡胶管连接玻璃砂漏斗3上的抽气短管5与真空泵。将待滤液倒入到圆形刻度漏斗1中。打开真空泵，溶液穿过滤膜和玻璃砂漏斗3进入到衬管6中。圆形刻度漏斗1中溶液滤完时，关闭真空泵，取下弹簧夹2，取下圆形刻度漏斗1冲洗内壁，取下滤膜，取下玻璃砂漏斗3并冲洗中间出液管内壁，取出装有溶液的衬管6。换上一支新的衬管6。重复上述操作。衬管6中溶液待测。 Put the liner support 7 into the receiving bottle 4, select the liner 6, insert the liner 6 into the liner support 7, insert the lower end of the sand funnel 3 into the receiving bottle 4, and insert the liquid outlet at the lower end of the glass sand funnel into the liner In the tube 6, put a filter membrane on the upper surface of the glass sand funnel 3, buckle the circular scale funnel 1 and use the spring clip 2 to fix the circular scale funnel 1 and the glass sand funnel 3, and connect the glass sand funnel 3 with a rubber tube. Evacuation short pipe 5 and vacuum pump. Pour the filtrate into the round graduated funnel 1. Turn on the vacuum pump, and the solution passes through the filter membrane and the glass sand funnel 3 into the liner 6 . When the solution in the circular graduated funnel 1 is filtered, turn off the vacuum pump, remove the spring clip 2, remove the circular graduated funnel 1 to rinse the inner wall, remove the filter membrane, remove the glass sand funnel 3 and rinse the inner wall of the middle outlet pipe, take out Liner 6 filled with solution. Replace with a new liner 6. Repeat the above operation. The solution in the liner 6 is to be tested.

有益效果：本发明涉及一种抽滤装置和抽滤方法。抽滤装置构思巧妙，易于操作使用，仅在现有抽滤装置基础上加一根衬管和衬管托，本发明的抽滤装置，抽滤液进入到衬管6中。抽滤的方法在更换抽滤样品时，只要更换衬管，而不用清洗接收瓶，节省人力物力，大大提高了工作效率；避免了样品间交叉污染，减少了实验误差。 Beneficial effects: the invention relates to a suction filtration device and a suction filtration method. The suction filtration device is ingenious in design and easy to operate and use. Only a liner and a liner support are added on the basis of the existing suction filtration device. In the suction filtration device of the present invention, the suction filtrate enters the liner 6 . In the suction filtration method, when replacing the suction filtration sample, only the liner needs to be replaced, instead of cleaning the receiving bottle, which saves manpower and material resources, greatly improves work efficiency; avoids cross-contamination between samples, and reduces experimental errors.

附图说明 Description of drawings

图1是本发明的一种抽滤装置的主视图。 Fig. 1 is a front view of a suction filtration device of the present invention.

图２是本发明一种抽滤装置的衬管6及衬管托7剖面图放大视图。 Fig. 2 is an enlarged view of the cross-sectional view of the liner 6 and the liner holder 7 of a suction filtration device of the present invention.

具体实施方式 Detailed ways

实施例1 如图1-2所示，一种抽滤装置包括圆形刻度漏斗1，弹簧夹2、液相过滤膜和玻璃砂芯漏斗3、接收瓶4和真空泵；玻璃砂芯漏斗3的上部有抽气短管5，液相过滤膜置于圆形刻度漏斗1和玻璃砂芯漏斗3之间，然后，通过弹簧夹2把圆形刻度漏斗1和玻璃砂芯漏斗3固定并连接，玻璃砂芯漏斗3的下部置于接收瓶4中，用橡胶管连接玻璃砂漏斗3上的抽气短管5与真空泵；其特征在于，将衬管6置于衬管托7中，衬管托7用来将衬管6托起使管口与接收瓶4瓶口平齐，使衬管6不会在接收瓶4中倾倒并便于玻璃砂芯漏斗3的下部置于衬管6中接收滤液，两者同时置于接收瓶4中，玻璃砂芯漏斗3的下部置于衬管6中。所述的衬管6优选比色管。 Embodiment 1 As shown in Figure 1-2, a kind of suction filtration device comprises circular graduated funnel 1, spring clip 2, liquid phase filter membrane and glass sand core funnel 3, receiving bottle 4 and vacuum pump; Glass sand core funnel 3 There is a short suction pipe 5 on the upper part, and the liquid phase filter membrane is placed between the circular scale funnel 1 and the glass sand core funnel 3, and then the circular scale funnel 1 and the glass sand core funnel 3 are fixed and connected by the spring clip 2, and the glass core funnel 3 is fixed and connected. The lower part of the sand core funnel 3 is placed in the receiving bottle 4, and the short pipe 5 and the vacuum pump on the glass sand funnel 3 are connected with a rubber tube; it is characterized in that the liner 6 is placed in the liner holder 7, and the liner holder 7 It is used to lift the liner 6 so that the mouth of the tube is flush with the mouth of the receiving bottle 4, so that the liner 6 will not fall in the receiving bottle 4 and facilitate the lower part of the glass sand core funnel 3 to be placed in the liner 6 to receive the filtrate. Both are placed in the receiving bottle 4 at the same time, and the lower part of the glass sand core funnel 3 is placed in the liner 6 . The liner 6 is preferably a colorimetric tube.

本实施例的抽滤装置为常见标准型号，衬管6为标准10mL，25mL，50mL玻璃比色管，尺寸分别为:外径15mm，高125mm；外径20mm，高175mm；外径25mm，高190mm。 The suction filtration device of the present embodiment is a common standard model, and the liner 6 is a standard 10mL, 25mL, and 50mL glass colorimetric tube, and the dimensions are respectively: outer diameter 15mm, high 125mm; outer diameter 20mm, high 175mm; outer diameter 25mm, high 190mm.

衬管6比衬管托7高出5 mm，以便于更换衬管6时方便取出。 The liner 6 is 5 mm higher than the liner support 7, so that it is easy to take out when replacing the liner 6.

10mL比色管对应的衬管托7参数为：底厚95mm，内径17mm、外径28mm，高度为215mm。 The parameters of the liner holder 7 corresponding to the 10mL colorimetric tube are: bottom thickness 95mm, inner diameter 17mm, outer diameter 28mm, height 215mm.

25mL比色管对应的衬管托7参数为：底厚45mm，高度为215mm，外径28mm，内径22mm。 The parameters of the liner holder 7 corresponding to the 25mL colorimetric tube are: the bottom thickness is 45mm, the height is 215mm, the outer diameter is 28mm, and the inner diameter is 22mm .

50mL比色管对应的衬管托7参数为：底厚30mm，高度为215mm，外径28mm，内径27mm。 The parameters of the liner holder 7 corresponding to the 50mL colorimetric tube are: the bottom thickness is 30mm, the height is 215mm, the outer diameter is 28mm, and the inner diameter is 27mm.

接收瓶4的高度与衬管托7内的衬管6等高。 The height of the receiving bottle 4 is equal to the liner 6 in the liner holder 7 .

Claims

1. A suction filtration device, characterized in that it comprises a circular graduated funnel (1), a spring clip (2), a liquid phase filter membrane and a glass sand core funnel (3), a receiving bottle (4) and a vacuum pump; glass sand There is a short suction pipe (5) on the upper part of the core funnel (3), and the liquid phase filter membrane is placed between the circular graduated funnel (1) and the glass sand core funnel (3), and then the circular filter is put through the spring clip (2). The scale funnel (1) and the glass sand core funnel (3) are fixed and connected, the lower part of the glass sand core funnel (3) is placed in the receiving bottle (4), and the short suction tube on the glass sand funnel (3) is connected with a rubber tube (5) and a vacuum pump; the feature is that the liner (6) is placed in the liner holder (7), both are placed in the receiving bottle (4) at the same time, and the lower part of the glass sand core funnel (3) is placed in the liner tube (6).

2 . A suction filtration device according to claim 1 , wherein the liner 6 is longer than the liner holder 7 .

3 . The suction filtration device according to claim 1 , wherein the liner 6 in the liner holder 7 is flush with the mouth of the receiving bottle 4 . 4 .

4. A suction filtration device according to claim 1, characterized in that, the liner 6 is a colorimetric tube.

5. a kind of suction filtration method based on a kind of suction filtration device claimed in claim 1, is characterized in that, step and condition are as follows:

Put the liner support (7) into the receiving bottle (4), insert the liner (6) into the liner support (7), insert the lower end of the sand funnel (3) into the receiving bottle (4), and at the same time Insert the liquid outlet at the lower end of the funnel into the liner (6), put a filter membrane on the upper surface of the glass sand funnel (3), buckle the round graduated funnel (1) and use the spring clip (2) to lock the round graduated funnel (1 ) and the glass sand funnel (3) are fixed, and a rubber tube is used to connect the short suction pipe (5) on the glass sand funnel (3) and the vacuum pump; pour the filtrate into the round graduated funnel (1), turn on the vacuum pump, and the solution Pass through the filter membrane and the glass sand funnel (3) into the liner (6); when the solution in the circular graduated funnel (1) is filtered, turn off the vacuum pump, remove the spring clip (2), and remove the circular graduated funnel ( 1) Rinse the inner wall, remove the filter membrane, remove the glass sand funnel (3) and rinse the inner wall of the middle outlet pipe, take out the liner (6) containing the solution; replace with a new liner 6, and repeat the above operations ; The solution in the liner (6) is to be tested.