JPH04297Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Technical field to which the invention pertains] This invention relates to a sample water head cell used in a sampling device, and in particular sets the overflow amount of sample water in the head cell in multiple stages and monitors the level to control the sequence of the sampling system. The present invention relates to a sample water head cell that can easily monitor levels. [Prior art and its problems] Conventionally, in a sampling device, when supplying the sample water stored in the head cell to the analysis system, if the sample water in the head cell falls below a specified level (specified overflow amount), this The condition is detected by a bottom level switch and the supply of sample water is controlled. In addition, if the sample water falls below the specified level, the function of the flow rate adjustment valve will be impaired, so a bypass valve is installed and opened to maintain an appropriate flow rate of the sample water supplied to the analysis system. controlled. However, in conventional sampling devices, the opening operation of the bypass valve is performed by the pressure of the sample water, and as mentioned above, the opening condition setting value of the bypass valve is low, so the pressure gauge in the bottom range is used. It is necessary to provide However, during normal sampling, high pressure is applied to the pressure gauge in the bottom range, so it is necessary to install a gauge saver at the pressure gauge inlet to protect the pressure gauge. There is a drawback that detection becomes impossible. In addition, if the sample water flow rate is not adjusted properly or if the deaerator system is not equipped with an automatic flow rate adjustment valve,
At high loads, an excessive flow rate of sample water may occur, for example, the inflow of high-temperature sample water may cause discoloration of the head cell or cause problems with the analyzer, and conventionally it has been difficult to monitor and control the head cell due to this type of excessive flow rate. It was hot. [Purpose of the invention] The purpose of the invention is to set multiple overflow levels in the sample water head cell and provide a level switch corresponding to each level.
To provide a sample water head vessel capable of monitoring the level of overflow and appropriately controlling the overflow amount by monitoring the level of sample water in the head vessel. [Summary of the invention] In order to achieve the above object, the sample water head cell capable of level monitoring in the present invention is a sampling device that is equipped with a sample water introduction opening and configured to have an overflow pipe inserted therethrough to draw out the sample water. In the sample water head cell, multiple level positions are sequentially set with the tip opening of the overflow tube as the high level, and the overflow hole has a different opening area in the overflow tube for the other level positions except the bottom level position. The present invention is characterized in that it is further provided with a level detector that performs a level detection operation corresponding to the set level of the overflow pipe. In the above-mentioned sample water head vessel, it is preferable that the overflow holes provided at predetermined level positions of the overflow tube are set such that the area of the holes becomes smaller as the distance decreases downward from the tip opening. In addition, the level detector consists of a detection tube placed parallel to the overflow tube and a float inserted through the detection tube, and is a multi-point level switch that can set multiple level detection points in response to changes in the level position of the float. It is preferable if the configuration is configured. Furthermore, it is preferable to provide a level mark on the head cell in correspondence with the set level of the overflow pipe. [Embodiment of the invention] Next, an embodiment of the sample water head cell capable of level monitoring according to the invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a sectional view showing an embodiment of the sample water head cell of the present invention. That is, in FIG. 1, reference numeral 10 indicates a cylindrical container body of a head vessel, and a sample water introduction opening 12 is provided at the bottom of the container body 10, and an overflow pipe 14 is inserted therethrough. However, in the present invention, the overflow pipe 14 is provided with a plurality of overflow holes 18, 20 at predetermined level intervals below the tip opening 16 thereof. In this case, the aperture areas of the overflow apertures 18 and 20 are set smaller in order to reduce the amount of overflow as the level becomes lower. For example, in the embodiment shown in FIG. 1, the relationship between each set level of the sample water and the overflow amount for the overflow tube 14 can be set as follows.

[Effect of idea]

As is clear from the above-mentioned embodiments, the sample water head cell capable of level monitoring according to the present invention has the following features:
An overflow pipe inserted vertically into the container body is provided with an opening that can adjust the amount of overflow at multiple levels, and a detector is provided that can perform level detection corresponding to these level levels. This allows the amount of overflow to be detected in relation to the sample water level.
Therefore, the overflow amount of sample water from the head cell can be constantly monitored, and the overflow amount can also be controlled by performing sequence control of the sampling system based on the level detection signal from the detector. In addition, the head cell is partially or entirely made of a transparent material, and by providing a level mark corresponding to the detection level of the detector, it is also possible to directly visually confirm the sample water level in the head cell. Properly monitor the operating conditions of this type of hedbet cell,
Operation control of the sampling system can also be achieved smoothly and safely. As a result, by using the head cell of the present invention, there is no need to install a pressure gauge in the bottom range when opening the bypass valve when the sample water bottom pressure is detected, and it is also possible to avoid excessive overflow due to abnormalities in the sampling system. It can also be effectively monitored and controlled. Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and for example, the number of levels for setting the overflow amount, the configuration of the level detector, etc. can be changed. Of course, various other improvements and changes can be made without departing from the spirit of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of a sample water head vessel capable of level monitoring according to the present invention. DESCRIPTION OF SYMBOLS 10... Container body, 12... Sample water introduction opening, 14... Overflow tube, 16... Tip opening, 18, 20... Overflow opening, 22
...Level detector, 24...Float, 26...
Detector tube.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a sample water head cell of a sampling device that is configured to have a sample water introduction opening and an overflow pipe inserted therethrough to draw out the sample water, the opening at the tip of the overflow pipe is raised. A plurality of level positions are sequentially set as levels, and overflow holes having different opening areas are provided in the overflow pipe for the other level positions except the bottom level position, and furthermore, overflow holes are provided in the overflow pipe with different opening areas, and further, the overflow holes are set in accordance with the set level of this overflow pipe. A sample water head cell capable of level monitoring, characterized by being provided with a level detector that performs a level detection operation. (2) In the sample water head cell described in Claim 1 of the Utility Model Registration Claim, the overflow holes provided at predetermined level positions of the overflow pipe have an opening area that gradually decreases as the area decreases downward from the tip opening. A sample water head cell that can be set and monitored at levels. (3) In the sample water head cell described in Claim 1 of the Utility Model Registration Claim, the level detector consists of a detection tube arranged parallel to the overflow tube and a float inserted through the detection tube, and responds to changes in the level position of the float. A sample water head cell capable of level monitoring, consisting of a multi-point level switch that can set multiple level detection points. (4) A sample water head cell according to claim 1 of the Utility Model Registration, which is capable of level monitoring, the head cell being provided with a level mark corresponding to the set level of the overflow pipe.