JPS623148Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is designed to be connected to a filth suction device that is used in hospitals, etc., to suck up patient filth into a container and then dispose of the collected filth in a toilet, etc. This invention relates to improvements to exhaust systems used in

As is known, this type of filth suction device 4 connects a filth suction pipe 2 with a filth suction port 1 opened to a container body 3, as shown in FIG.
The exhaust port 5, which is connected to the 8 is supplied with sealed water A from the water supply port 9, and by operating the same pump 8, a negative pressure is created in the container body 3 of the suction device 4, and the negative pressure is used to The filth is sucked and received into the container body 3 from the filth suction port 1 through the filth suction pipe 2.

In this case, in order to disinfect the suctioned filth, a phenol-based or alcohol-based chemical solution B is put into the container 3 in advance, and after the above-mentioned filth suction operation is completed, the lid 10 of the container 3 is closed. Remove the body 3
In the figure, 11 indicates the exhaust port of the suction pump 8, and 12 indicates the water sealing drain port.

Now, when such a filth suction device 4 is operated by the exhaust device 6, it will of course exhibit normal suction function for a certain period of time, but as it continues to be used, the suction function will deteriorate and eventually the suction pump will fail. A situation has arisen in which the rotation of 8 itself stops.

Conventionally, when such a situation occurs, the countermeasure taken is to seal water A of the suction pump 8,
The objective is not only to discharge the solids from the drain port 12, but also to remove the solids detected from various parts of the pump 8. After such work, operation must be restarted, so it is necessary to Not only does this require a considerable amount of time and effort, but the filth suction device 4 becomes unusable during this time, so there is a problem in that a spare exhaust device for the filth suction device must be provided separately.

The present invention aims to eliminate such problems and provide an exhaust system that can guarantee the normal operation of the filth suction device over a long period of time. As shown in the figure, in any of the embodiments, a heat exchange means 13 is provided for heating or cooling the sealed water A supplied into the suction pump 8 to a predetermined temperature condition.
Moreover, the temperature conditions must be such as to prevent the growth of aerobic microorganisms in the sealed water A.

In the example of the apparatus already described in FIG. 1, an electric heater 14 is installed inside the suction pump 8 as the heat exchange means 13 so as to come into contact with the seal water A. On the other hand, in the case of FIG. 2, a high frequency heater 15 is provided on the suction pump 8 to serve as a heat exchange means 13.

Further, the heat exchange means 13 in Figs. 3 and 4 includes a water supply line 17 for supplying the sealing water A from a water supply source 16 through the water supply port 9, and a drainage line 18 connected to the drainage port 12 to form a circulation line 19.
A circulation pump 20 is connected in series to the line 19, and a third pump is connected in an appropriate position to the circulation line 19.
As shown in the figure, a heater 21 or a cooler 2 as shown in FIG.
2 is attached, so that the seal water A is circulated by pump 2
0 is operated to circulate the sealing water through the line 19, and the circulating sealing water is heated by a heater 21 or cooled by a cooler 22.

In the case of the above-mentioned heating, it is desirable that the sealed water be given a temperature condition of 45°C or higher, and when cooling means is used, it is optimal to set the temperature to 5°C or lower.

As embodied in the various embodiments of the present invention, the sealed water A in the suction pump 8 in a conventional exhaust system is heated or cooled to a temperature condition that prevents aerobic microorganisms from propagating in the sealed water. As a result of the structure having the heat exchange means 13, which does not have such a heat exchange means 13, it is necessary to replace seal water and clean the suction pump, especially when using alcohol-based sterilizers. When a disinfectant was put into the suction device, the water seal had to be replaced after about 7 days, but no abnormality occurred in the rotational state of the suction pump 8.
The suction capacity of the filth suction device was not reduced, and the operation of the filth suction device could be continued without any problems.

This result was obtained because the solid matter that obstructs the rotation of the suction pump and reduces the suction power as described above is generally expected to be due to iron rust from the piping system,
It does not depend on iron bacteria, etc., nor does the filth sucked into the filth suction device 4 flow into the suction pump 8, and furthermore, the phenol-based and alcohol-based chemicals introduced as described above undergo no change. It is not generated in solid matter, and there is an extremely rich amount of dissolved oxygen in the sealed water, and the conditions for continuous replenishment of oxygen (air) are satisfied, and the suction device is As mentioned above, phenol-based and alcohol-based chemicals are used, and the filth suction device 4 is used under temperature conditions such as hospital rooms and operating rooms, so bacteria generated in the presence of dissolved oxygen is prevented. This is due to the fact that the essence of the solid material is slime (community) of protozoa such as aerobic microorganisms.

It was also confirmed that the essence of the solid material was the slime of aerobic microorganisms as described above, but the microorganisms were formed by the presence of oxygen and temperature conditions as described above, as well as by the presence of alcohol injected into the waste suction device 4. Alcohol-based chemicals are particularly superior to phenol-based drugs as a nutrient source (feed) for protozoa, as chemical solutions such as alcohol-based chemicals turn into vapor and are sucked into the filth suction device exhaust device 6 and are dissolved in the sealed water A. In the case of chemical solutions, the hindrance caused by solids increases,
In the present invention, the heat exchange means 13 that provides the required temperature conditions to the sealed water A prevents the growth of the aerobic microorganisms, thereby preventing the generation of solid matter and eliminating the various drawbacks of the conventional devices. This means that the problem can be virtually eliminated, and a highly reliable product can be provided.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of piping showing one embodiment of the suction exhaust device according to the present invention, Figs. 2 and 3 are explanatory diagrams of piping according to other embodiments of the same device, and Fig. 4 is the same as that of Fig. 3. FIG. 2 is a partial piping explanatory diagram of the same device showing different types of heat exchange means. 1...Fility suction port, 2...Fility suction pipe, 4
...Fility suction device, 7...Batua tank, 8...
Suction pump, 13... Heat exchange means, 14... Electric heater, 15... High frequency heating coil, 17... Water supply line, 18... Drainage line, 19... Circulation line, 20... Circulation pump, 21... Heater, 2
2... Cooler, A... Water seal, B... Chemical solution (sterilizing disinfectant).

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A suction pump is connected to a buffer tank that connects the exhaust port side of the filth suction device, and a sterilizing agent is introduced into the filth suction device by the operation of this suction pump. By suctioning and exhausting the inside of the container to create a negative pressure inside the container,
The filth suction port of the filth suction device is configured to inhale and collect the filth of a sick person, etc. through the filth suction pipe, and the suction pump includes a water supply port through which water can be freely supplied and a water sealing drain port. an exhaust system for a waste suction device, comprising a heat exchange means for heating or cooling the sealed water in the suction pump to a temperature condition that prevents aerobic microorganisms from propagating in the sealed water. . (2) The exhaust device for a filth suction device according to claim 1, wherein the heat exchange means is constructed by disposing an electric heater provided in the suction pump so as to come into contact with the sealed water. (3) The exhaust device for a filth suction device according to claim 1, wherein the heat exchange means is constituted by a high-frequency heater installed next to the suction pump. (4) Utility model registration claim No. 1 in which the heat exchange means is composed of a circulation line connected in series with a water supply line of a suction pump, a drainage line, and a circulation pump, and a heater or cooler attached to the circulation line. The exhaust device for a filth suction device according to item 1.