JPS6099300A - Dry cleaning machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] This invention relates to dry cleaning machines.

Conventional dry cleaning machines are combined with a hot air drying device, so the use of petroleum-based dry cleaning solvents can cause explosions and other accidents, and the reality is that safety has not been ensured.

The cause of this is the physical properties (flammability) of petroleum-based dry cleaning solvents, and the vaporized concentration of the solvent inside the basket increases during drying, causing sparks from hooks on clothes, zippers, etc., and static electricity from synthetic fibers, etc. This is due to

Furthermore, a dry cleaning machine that blows hot air into the basket is described in JP-A-58-10097, but even if the lint filter is clogged and it is difficult for the vaporized solvent to escape, the hot air continues to flow. There is a risk that the vapor concentration inside the basket will increase. Furthermore, problems may occur with waste liquid valves, overflow valves, and other equipment, and if they are not sealed, there is a risk that hot air may leak outside the basket (base tank, circulation circuit, etc.).

In addition, by adding a drying device, baskets and washing tanks (
The outer shell) is heated to 50 to 60 degrees Celsius during hot air drying (it cannot be completely cooled even with cold air drying). Therefore, during cleaning, the solvent temperature was 40 degrees Celsius (-14 degrees Celsius in combination with the pump circulation temperature increase).
) and had various drawbacks such as causing ``no color'' etc.

Therefore, the present invention eliminates these drawbacks and provides a tri-cleaning machine that is safe and does not cause troubles such as "not using one color".

An embodiment of the present invention will be described below with reference to the drawings.
In a dry cleaning machine that uses a flammable solvent and is equipped with a hot air drying device (2) that blows air into the basket (1) and an exhaust device (3) that exhausts the hot air from inside the basket (1) to the outside. , a dry cleaning machine characterized in that an air exhaust fan (3a) is installed on the air exhaust device side and the hot air generated in the hot air drying device (2) is sucked into the basket (1) by the suction force of the air exhaust fan (3a). It consists of

In addition, (4) is a lint filter clogging detection device, and when the lint filter is clogged during drying, the balance between the exhaust fan (3a) and the heat exchanger (2a) is thrown out of order.
As the concentration of solvent vapor in the heat exchanger (2a) increases, a certain clogging number is detected, and safety is ensured by stopping the steam supply to the heat exchanger (2a), issuing an alarm, and shutting down the operation (switching to cold air drying). Also, (5) is a damper, which sucks air from the heat exchanger (2a) side due to the centrifugal force of the basket during cleaning, delitting, and especially during delitting rotation.Therefore, in the event that the heat exchanger Even if the heat exchanger is heated due to a malfunction (steam leak) in the steam solenoid valve, the damper shuts it off and prevents the risk of being sucked in as hot air during deliquification.For this reason, an abnormal temperature detection device ( 6) is provided, and during cleaning and deliquification, the function of this temperature detection device detects abnormal temperature rise, and safety is ensured by issuing an alarm and shutting down the operation.

To determine the drying temperature, temperature detection devices (7a, 7b) are installed at the entrance and exit of the basket, respectively, and the steam valve is turned on.
By linking with the OFF control, the drying temperature suitable for the clothes can be set and kept constant. Also, the solvent tank (
8) A cooling device (9) is installed in the solvent circuit to keep the solvent temperature constant. This cooling device controls the solvent temperature at 28 degrees Celsius, but if the temperature rises abnormally, only the pump is operated to perform cooling circulation. Also, 3
If the temperature exceeds 2 degrees Celsius, an alarm will be issued and operation will be stopped to ensure safety.

According to this invention, the hot air drying device (2) is located on the side of the air exhaust device (3) via the air outlet (1) and after the lint filter. (3a) has a structure that sucks hot air into the basket, and is controlled using various temperature detection devices to prevent abnormal temperature rises during cleaning, dehydration, and drying, and prevent dangerous situations due to solvent vaporization. can be prevented and has extremely beneficial effects.

[Brief explanation of drawings]

The drawings are explanatory diagrams showing one embodiment of the present invention. 1...
・Basket, 2... Hot air dryer, 2a... Heat exchanger, 3... Air exhaust device, 3a... Air exhaust fan,

Claims (1)

[Claims] In a dry cleaning machine that uses a flammable solvent and is equipped with a hot air drying device that blows air into the basket and an exhaust device that exhausts the hot air from the inside of the basket to the outside, the hot air drying device is equipped with an exhaust fan on the side of the ventilation device. A dry cleaning machine characterized by sucking the hot air generated by the vacuum cleaner into a basket using the suction power of an exhaust fan.