JPS6121781A - Pack for adding water treating chemical agent - Google Patents

Abstract

PURPOSE:To obtain a pack for adding a water treating chemical agent capable of achieving required effect through the certain contact of water with the chemical agent and stably adding said chemical agent every definite period, by receiving the water treating chemical agent is a bag having water permeability. CONSTITUTION:A tablet like, lumpy, granular, powdery, pasty or clayey solid water treating chemical agent 5 (e.g., a scale inhibitor, a slime inhibitor, an algecide or a corrosion inhibitor) is received in a receiving device 2 such as a bag or container comprising a nonwoven fabric having water permeability. This pack for adding the water treating chemical agent is used in the treatment of the recirculated cooling water of air conditioning machinery, the water of a swimming pool, the water of a boiler, the industrial water for cooling apparatus or the water of a pond. By this method, a proper amount of the water treating chemical agent is floated or precipitated at a predetermined position and the chemical agent is certainly contacted with water to be dissolved at a desired speed and required effect is achieved and the chemical agent can be stably added at every definite period.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pack for adding water treatment chemicals to water gradually.

Traditionally, for example, water treatment chemicals have been injected into the circulating cooling water of building air conditioning equipment using chemical dosing pumps to prevent scale, slime, and corrosion, and slowly soluble solid chemicals have been added to the cooling water. It is added by contacting it. The former method is used in large air conditioners and the like because the cost of the chemical injection pump is relatively high, but the latter method, which is relatively inexpensive, is generally used in small and medium-sized devices.

This slowly soluble drug has conventionally been commercially available packed in plastic containers, and has been used, for example, by being submerged or suspended in water in a cooling tower pit. However, the temperature and flow rate of the water in the cooling tower pit, which greatly affect the dissolution rate of water treatment chemicals, vary greatly depending on the equipment, resulting in large differences in the retention period of the chemicals.

Additionally, the presence of water treatment chemicals inside the container is checked through regular inspections, but with conventional opaque plastic containers, checking for the presence of chemicals requires looking inside through a small water hole in the container or opening the container. It was extremely troublesome to check the amount of medicine remaining.

The present invention stores water treatment chemicals in storage devices such as bags or containers made of water-permeable nonwoven fabric, adjusts the water permeability by adjusting the basis weight of the nonwoven fabric, and controls the elution rate of the drug. For example, it is suspended in the circulating cooling water of a cooling tower pit to maintain the amount of chemicals added to the water within an appropriate range, and the storage device is suspended in the water with a connecting device such as a string or chain. This provides an inexpensive underwater drug addition pack in which the presence or absence of drugs can be determined at a glance from the outside by pulling up the storage device.

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

Note that the present invention is not limited to the following examples.

FIG. 1 shows an embodiment of the present invention, and numeral 1 in the figure is a pack for adding underwater medicine. A storage device 2 such as a bag or container made of non-woven fabric stores water treatment chemicals 5 such as scale inhibitors, slime inhibitors, and corrosion inhibitors. The nonwoven fabric has a basis weight of 5 Ωr/- or more and a water permeability of 1 mj/ai・Se.
C~50 td.

It is preferable to use one in the range of /a1·sec.

If a material having a basis weight of tol/- or more is used, it is possible to mold it into a desired shape.

The nonwoven fabric storage tool 2 is not limited to a rectangular shape.

It can take any shape such as a polygon, annular ring, ellipse, sphere, ellipsoid, pyramid, cone, or cylindrical shape, or by folding these shapes in the center and bringing both ends together. It is possible.

Furthermore, since the amount of water treatment chemicals 5 stored in the non-woven fabric container 2 can be easily checked from the outside, it is much easier to check the amount of chemicals remaining compared to conventionally used plastic containers.

FIG. 2 shows another embodiment of the invention. One end of a connecting device 4 such as a string or chain is sewn into the container 2 containing the water treatment agent 5 and attached by a method such as gluing or heat sealing to form the connecting device 4.

The connector 4 may be attached to the nonwoven fabric storage device 2 at any part of the storage device 2 as long as it cannot be easily removed in water. The other end of the connector 4 is left free so that it can be tied to a support of a cooling tower or the like during use.

Alternatively, the other end of the connection A4 may be attached to the packaging material 3 such as wrapping paper by sewing, gluing, heat sealing, or the like. Second
In the figure, the shaded area indicates the area where the packaging materials are attached to each other. The packaging material 6 may wrap the nonwoven fabric storage device 2 together with the connector 4.
, the packaging material 3 is made into a bag and the non-woven fabric storage device 2 is connected to the connecting device 4.
You can also store it together. Further, if the packaging material 3 is provided with a notch 6, it is convenient to open the package.

FIG. 3 shows an example of how the pack for adding underwater medicine of the present invention is used. A storage device 2 made of a nonwoven fabric is suspended, for example, in cooling water 7 of a cooling tower 8 of an air conditioner, and the other end of the connector 4 is tied to a support of the cooling tower.

When using a package with packaging material 3 attached, connecter 4
If the date of start of use is written on the packaging material 5 attached to the other end, it will be convenient to maintain and manage the water treatment chemicals together with the drug name written or printed on the packaging material 3.

The connector 4 is a storage device 2 that stores water treatment chemicals during periodic inspections.
The role is to confirm the remaining amount of the chemical agent and to prevent the storage device 2 from blocking the bit water outlet of the cooling tower 8.

The elution rate of the water treatment agent can be controlled by selecting nonwoven fabrics with different water permeability depending on the properties of the agent and the circulation rate of the cooling water.

The shape of the water treatment agent is determined by the type of agent, such as tablets, lumps, granules, fine particles, coarse powder, fine powder, paste, or clay.
It can be selected appropriately depending on the properties.

If it is necessary to float the storage device 2 such as a bag or container on the treated water depending on the shape and properties of the drug, a float such as styrene foam, for example, is placed in the storage device 2 to make it float. Conversely, if there is a need to sink it, a weight can be placed in the storage tool 2 to cause it to sink.

With the above-described configuration, the present invention allows an appropriate amount of water treatment chemicals to float or settle at a predetermined position, ensures that the water comes into contact with the chemicals, dissolves the chemicals at a desired rate, and dissolves the chemicals at a desired rate. To provide an underwater drug addition pack that is capable of increasing the effect of the drug during treatment and stably adding the drug at regular intervals.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the underwater drug addition pack of the present invention. FIG. 2 is a plan view showing another embodiment of the underwater drug addition pack of the present invention, and FIG. 3 is a schematic view showing an example of the usage state of the underwater drug addition pack of the present invention. In the figure. 1... Punk for adding underwater chemicals, 2... Storage device, 5.
...Packaging material, 4...Connector, 5...Water treatment agent, 6
...Notch, 7...Cooling water, 8...Cooling tower Patent applicant Nippon Nohyaku Co., Ltd. Fang 1 Figure 2 Fang 3 Procedural amendment January 21, 1985

Claims (4)

[Claims] (1) Addition of a water treatment agent characterized by containing a solid water treatment agent in the form of a tablet, lump, granule, powder, paste, or clay in a storage device such as a bag or container made of water-permeable nonwoven fabric. pack for. (2) Addition of a water treatment agent according to claim 1, which is used for water treatment of circulating cooling water of air conditioners, swimming pool water, boiler water, industrial water for equipment cooling, pond water, etc. pack. (3) A solid water treatment agent such as a tablet, lump, granule, powder, paste, or clay is stored in a storage device such as a bag or container made of water-permeable nonwoven fabric, and the storage device is wrapped in a wrapping paper. A pack for adding water treatment chemicals, characterized in that it is packaged in a packaging material such as, and connected to the packaging material with a connecting device such as a string or chain. (4) Addition of a water treatment agent according to claim 3, which is used for water treatment of circulating cooling water of air conditioning equipment, swimming pool water, boiler water, industrial water for equipment cooling, pond water, etc. pack.