JPH04134429U - Gas-liquid stirring tank - Google Patents

Abstract

(57) [Summary] [Purpose] A simple structure that prevents the turbid liquid remaining in the piping from returning to the tank when air is supplied by a roller pump, and eliminates errors when measuring the turbid liquid. Provide a liquid stirring tank. [Structure] In a gas-liquid stirring tank 1 that stirs the turbid liquid by feeding air into the tank 1 into which the turbid liquid is injected, an intermediate tank 10 is connected to the bottom of the stirring tank 1, and the bottom of the intermediate tank 10 to tube 7
A roller pump 8 is provided in the tube 7 so that the turbid liquid remaining in the tube 7 remains in the intermediate tank 10 during air supply.

Description

[Detailed explanation of the idea]

[Purpose of invention]

0001

[Industrial application field]

The present invention is a gas liquid that stirs the turbid liquid by introducing air into the tank into which the turbid liquid is injected. The present invention relates to a stirring tank, and particularly to a gas-liquid stirring tank suitable for being installed in a blood cell counter.

0002

[Conventional technology]

The blood cell counter mixes a hemolytic agent into the diluted blood sample to melt the red blood cells. A counting container is provided to measure the number of white blood cells. At this time, a hemolytic agent was mixed in. It is necessary to uniformly stir the sample blood turbidity. For this reason, conventionally the Connect the drain pipe 2 and the air supply pipe 3 to the bottom of the counting container 1, respectively, so that the A drainage pump 4 and an air supply pump 5 are provided in the water pipe 2 and the air supply pipe 3, respectively. was. Then, the counted turbid liquid remaining in the counting container 1 is removed by the drain pump 4. After draining the liquid and injecting a new turbid liquid into the counting container 1, the air supply pump 5 is used to count the liquid. Air is supplied into several containers 1 to stir the turbid liquid. The diagram shows when the turbid liquid is sufficiently stirred. A non-containing detection tube is inserted into the counting container 1 to measure the number of white blood cells.

0003 As mentioned above, conventionally, two tubes 2 and 3 are connected to the counting container 1, and the tubes 2 and 3 are connected to each other. Pumps 4 and 5 are provided respectively, and the counting container 1 is used as a gas-liquid stirring tank to stir the turbid liquid. It was. For this reason, there was a drawback that the configuration was complicated and the cost was high.

0004 As a gas-liquid stirring tank that eliminates the above drawbacks, a roller pump 6 as shown in FIG. One possibility is to use That is, a flexible pipe is installed at the bottom of the counting container 1. A tube 7 is connected, and a roller pump 8 is provided on the tube 7. roller pump 8 The tube 8 is always compressed and occluded in at least one location, and the roller pump 8 The rotation moves the blocked area to supply air or liquid.

[0005] In the counting vessel 1 as a gas-liquid stirring tank configured in this way, first, as shown in Fig. 5(a), Rotate the roller pump 8 in the direction of arrow A so that the count remaining in the counting container 1 Drain the turbid liquid. Next, as shown in Figure 5(b), a new turbid liquid is added to the counting container 1. inject. Next, as shown in Figure 5(c), rotate the roller pump 8 in the direction of arrow B. , air is supplied to the turbid liquid in the counting container 1 to stir the turbid liquid. After that, the above-mentioned situation Measure the blood cell count in the same way as before.

[0006]

[Problem that the idea aims to solve]

As mentioned above, by using roller pump 8, only one pump is required, and the configuration is simple. Simply become. However, with this configuration, when discharging the counted turbid liquid, the The turbid liquid remains on the inner surface of tube 7. For this reason, when air is supplied, as shown in Figure 5(c), The remaining turbid liquid 9 is pushed back into the counting container 1 and mixed into the new turbid liquid. do. For this reason, there was a risk that measurement errors would occur.

[0007] This invention was made in view of the above points, and the turbid liquid remaining in the piping is removed from the tank. It has a simple structure that prevents the liquid from returning to the inside and causes no errors when measuring turbid liquids. The purpose is to provide a gas-liquid stirring tank. [Structure of the idea]

[0008]

[Means to solve the problem]

In order to achieve the above purpose, this invention supplies air into the tank where the turbid liquid is injected. In the gas-liquid stirring tank for stirring the turbid liquid, a gas-liquid stirring tank is connected to the bottom of the stirring tank. an intermediate tank, a flexible pipe connected to the bottom of the intermediate tank, and a rotor provided in the pipe. It is characterized by consisting of a pump and a pump.

[0009]

[Effect]

According to the above configuration, when the roller pump supplies air into the stirring tank, the Even if turbid liquid remains in the pipe and is returned to the stirring tank, the turbid liquid will not accumulate in the intermediate tank. Do not mix into the stirring tank. This prevents measurement errors when measuring turbid liquids. can.

0010

【Example】

An embodiment of the present invention will be described below with reference to the drawings.

[0011] FIG. 1 shows an embodiment of the present invention. In Fig. 1, the parts of the conventional example shown in Fig. 4 are compared. Corresponding parts are denoted by the same reference numerals, and the description thereof will be omitted as appropriate. Features of this embodiment A sealed intermediate tank 10 is connected to the bottom of the counting container 1, and a tube is connected to the bottom of the intermediate tank 10. The configuration of the other parts is the same as that of the conventional example shown in FIG. 4.

0012 Next, the operation of this embodiment will be explained with reference to FIG. In Figure 2(a), the roller port Rotate the pump 8 in the direction of arrow A to remove the counted turbid liquid remaining in the counting container 1. Discharge through tank 10 and tube 7. Next, as shown in Figure 2(b), the inside of counting container 1 is Inject new turbidity. At this time, it is blocked by the counting container 1 and the roller pump 8. Air remains between the tube 7 and the turbid liquid in the intermediate tank 10. It will not fall inside. Next, as shown in Figure 2(c), move the roller pump 8 in the direction of arrow B. The counter rotates in the opposite direction to supply air to the turbid liquid in the counting container 1 to stir the turbid liquid. this When the turbid liquid from the previous time remains on the inner surface of the tube 7, it returns to the direction of the counting container 1. Even if the turbid liquid is removed, the turbid liquid remains in the intermediate tank 10 and does not mix into the counting container 1. For this reason Measurement error when measuring the blood cell count of a turbid liquid newly injected into the counting container 1 can be prevented from occurring.

[0013] In the above embodiment, the counting container as a gas-liquid stirring tank installed in a blood cell counter is described. Although the present invention has been explained above, it can also be applied to gas-liquid stirring tanks provided in other chemical equipment.

[0014]

[Effect of the idea]

As explained above, according to the present invention, an intermediate tank is connected to the bottom of a gas-liquid stirring tank, Flexible piping is connected to the bottom of the intermediate tank and a roller pump is used to supply gas and liquid. Therefore, it is possible to prevent the turbid liquid remaining in the piping from entering the stirring tank. child As a result, it is possible to prevent measurement errors from occurring when measuring a turbid liquid.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing the configuration of an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the effect of FIG. 1;

FIG. 3 is an explanatory diagram showing the configuration of an example of a conventional gas-liquid stirring tank.

FIG. 4 is an explanatory diagram showing the configuration of another example of a conventional gas-liquid stirring tank.

FIG. 5 is an explanatory diagram showing the effect of FIG. 4.

[Explanation of symbols]

1 Counting container (gas-liquid stirring tank) 7 Tube (flexible piping) 8 Roller pump 9 Residual turbid liquid 10 Intermediate tank

Claims (1)

[Scope of utility model registration request] 1. A gas-liquid stirring tank for stirring the turbid liquid by supplying air into the tank into which the turbid liquid is injected, comprising: an intermediate tank connected to the bottom of the stirring tank; A gas-liquid stirring tank characterized by comprising a flexible pipe connected to the bottom and a roller pump provided on the pipe.