RU2539326C1 - Washing machine with liquid vessel - Google Patents

Abstract

FIELD: personal use articles.

SUBSTANCE: invention relates to washing machines for household and industry purpose. The washing machine is equipped with an additional liquid vessel (for water and/or washing solution), has a pump, an apparatus for control, a control system unit, providing for the washing process, washing solution transfer into the conduits or the liquid vessel, the tank filling with rinsing water from the water line or from the liquid vessel; the liquid vessel is placed in the washing machine body. The liquid flow control system used during washing is equipped with two three-position hydraulic distributors; one of them is connected (via hydraulic lines) to the drain channel leading from the washing machine tank, to the liquid vessel, to the second three-position hydraulic distributor and to the pump outlet; the second three-position hydraulic distributor is connected to the pump outlet line, to the first hydraulic distributor and to the line connected to the conduits.

EFFECT: water and washing solution consumption reduction during washing and in enhancement of the washing machine service life without breakdowns.

1 dwg

Description

The invention relates to washing machines for washing and rinsing washable products and can find application in the design of household and industrial washing machines of drum and activated type.

Known washing machines having a tank for washing and rinsing. For example, drum-type washing machines (A. Lebedev “Anatomy” of washing machines, - M .: SOLON-PRESS, “Repair” Series, issue 104. 2008. - 120 p.) / 1 /. Such machines include a housing and a rotatable drum fixed in the tank, a pump, equipment and a control system for washing, rinsing and removing the spent solution and water after rinsing into the sewer.

Other washing machines having washing and rinsing tanks are also known. For example, activator-type washing machines (Household washing machines. V.A. Borodin, S.A. Likhachev / "BHV - St. Petersburg", Dusseldorf, Kiev, Moscow, St. Petersburg, 1998, p. 38) / 2 /, in which two containers are used: one for washing and rinsing, the other for spinning; as well as a pump for removing liquid into the sewer, equipment and control system.

The disadvantage of washing machines drum and activator type is the relatively high consumption of water for washing and rinsing. In such washing machines, multiple rinsing of laundry is provided to remove residual detergent from the washable product, and after each rinse, the waste water from the tank is discharged into the sewer, and for the next wash, clean water from the water main is used to prepare the washing solution in the tank. Water after the second rinse, and in some cases after the first rinse, can be used to prepare a washing solution, for subsequent washing.

After the washing process in the washing solution, the spent washing solution is discharged into the sewer. Sometimes the washing solution after washing a small amount of washable products and / or when they are relatively lightly soiled remains in working condition, but for rinsing and wringing the tank must be released from this solution and it is discharged into the sewer, however, such a washing solution can be used for subsequent washing.

Known washing machines do not provide these capabilities, which is a disadvantage of these washing machines.

Closest to the technical nature of the claimed is a drum-type washing machine (Modern washing machines and detergents. N.A. Skorobogatov / BHV, St. Petersburg, Arlit, 2001, p. 212-233) / 3 /, consisting of housing rotatable drum located in the tank; a control system, a pump, a valve for supplying water to the tank, a hydraulic line for supplying water to the tank from the water main, a hydraulic line for discharging waste fluid into the sewer, other hydraulic lines connecting the tank, pump, valve.

In such a washing machine, water is supplied to the tank from the water main under the pressure of the water main line by opening a valve programmatically controlled by the control system of the washing machine. The control system of such a washing machine also includes a sensor for filling the tank with water or another device that regulates the supply of the required volume of water to the tank for the preparation of the washing solution, this volume may depend on the volume of items being washed, loaded into the tank, on the type of fabric of the item being washed.

The control system of such a washing machine also programmatically controls the on / off of the pump, ensuring the removal of the treated detergent solution and water after the washing process and rinsing into the sewer.

The disadvantage of such a washing machine is the relatively high water consumption for the washing process (including rinsing), which increases both the amount of water consumed from the water main and the amount of treated liquid discharged into the sewer. In addition, water after the first or second rinse is not used to prepare the washing solution for the next wash; partially used washing solution is also not used.

The objective of the invention is to remedy these disadvantages, namely the rational use of water and a washing solution during washing and rinsing, reducing the total flow of water consumed from the water supply; reduce the amount of waste fluid discharged into the sewer.

The problem is solved in that the drum-type washing machine, comprising a housing, at least a tank or a tank and a drum for erasable items, a pump, equipment, hydraulic lines, a control system unit that provides a washing process, removal of a washing solution, filling the tank with water and removing water from the tank after rinsing to the sewer; equipped with an additional container for liquid, for partially used washing solution and / or for rinsing water, located in the washing machine body. At the same time, the equipment of the washing machine is equipped with two three-position hydraulic control valves, the first of which is connected by hydraulic lines to the drain channel from the washing machine tank, to the liquid tank, to the second three-position hydraulic control valve and to the pump inlet. The second three-position directional control valve is connected by hydraulic lines to the outlet of the pump, to the first three-position directional control valve, and also to the hydraulic line connected to the sewer.

The invention is illustrated in the drawing. The drawing for example shows a diagram of a washing machine with a container for liquid. The washing machine consists of a housing 1, a tank and a drum 2, a liquid container 3, a pump 4, a first three-way valve 5, a second three-way valve 6, a hydraulic line 8, a valve 9 for supplying water from a water main 11, a control system unit 10.

The washing machine is connected by a hydraulic line to the sewer 12.

In the initial state, the first three-position valve 5 is in the first position shown in the drawing; the hydraulic lines 8 connected to it are not connected. In the second position, the first three-way valve 5 with hydraulic lines 8 connects the drain hole in the tank 2 with the inlet to the pump 4, and the hydraulic line from the second three-position valve 6 with the entrance to the liquid tank 3.

In the third position, the first valve 5 connects the hydraulic line from the second three-position valve 6 to the drain hole in the tank of the washing machine 2, and connects the inlet to the liquid tank 3 with the inlet to the pump 4.

In the initial state, the second three-position valve 6 is in the first position shown in the drawing. The hydraulic lines 8 connected to it are not connected. In the second position, the second three-position valve 6 with hydraulic lines 8 connects the outlet of the pump 4 to the sewer 12. In the third position, the second three-position valve 6 with hydraulic lines 8 connects the outlet of the pump 4 with the entrance to the liquid tank 3.

The liquid container 3 is placed in the housing of the washing machine 1, for example, in its lower part. The volume of the liquid container 3 for household washing machines can be from 10 to 30 liters. The liquid container 3 can be made of two sections: for accumulating liquid after rinsing and accumulating the washing solution for reuse. The tank for liquid 3 is equipped with sensors for the maximum level of filling of the tank or its sections (not shown). The washing machine can also be performed with one section only for the accumulation of water after rinsing and / or for the accumulation of water from the water supply line. In the latter case, filling the tank with liquid 3 with water will increase the total mass of the washing machine, which will help reduce its vibrations during the spin cycle. To monitor the state of the washing solution and water after rinsing, before the liquid is directed into the liquid container 3, it is possible to use sensors for the purity of the washing solution and / or water. Before entering the liquid tank 3, it is also possible to install a filter for cleaning partially used washing solution or water after rinsing.

The washing machine operates as follows.

When the user-selected washing program is turned on, the washing machine’s tank 2 is filled with water from the water main 11 through a hydraulic line 8 through the water supply valve 9 to the inlet of the tank 2. In this case, the first 5 and second 6 three-way control valves are in the initial state, and the pump does not work.

The program of the control unit of the washing machine monitors the level of the washing solution or water in the tank 2. Upon reaching the set level or the set volume of water, the control program sets the water supply valve 9 to the closed state, the water supply from the water main 11 to the tank 2 is stopped. When filling the tank 2 with water, a detergent solution is usually prepared.

Next, the algorithm of the washing program is carried out by rotating the drum in the tank of the washing machine 2, in the washing solution, in accordance with the selected program.

After the completion of the washing program, the washing solution, at the user's choice, is sent either to the sewer 12 or to the liquid tank 3. By default, the spent washing solution is sent to the sewer 12. For this, the program of the control unit 10 transfers the first three-position valve 5 to the second position, connecting the outlet from the tank 2 of the washing machine with the pump 4, and the second three-position valve 6 in the second position, connecting the outlet of the pump 4 with the sewer 12.

At the request of the user, the partially spent washing solution can be sent to the liquid container 3. For this, the user, before starting the washing process, selects the storage mode of the washing solution: “Save washing solution”, then the program of the control unit 10, before draining the liquid from the tank 2, transfers the second three-way valve 6 to the third position, connecting the outlet of the pump 4 with the first three-way valve 5, through which the partially spent solution is supplied through hydraulic lines 8 into the fluid container 3.

After removing the washing solution from the tank 2 with the program of the control system block 10, the first 5 and second 6 three-way control valves are returned to their initial states, and the washing process continues according to the standard scheme, rinsing and spinning operations are performed in accordance with the algorithm of the program selected by the user.

After completing the second rinse (by default) or after the first rinse when washing slightly dirty products (at the user's choice), water is transferred from the tank 2 to the liquid container 3. If the liquid container 3 contains two sections, then to the water section after rinsing .

For this, the program of the control unit 10 switches the first three-way valve 5 to the second position, and the second three-way valve 6 to the third position. When this is connected by hydraulic lines 8, the outlet of the tank 2 with the entrance to the tank for liquid 3.

By default, the program of the control system unit 10 generates a command "discharge into the liquid tank." With the user’s command “After rinsing, drain into the sewer”, this operation can be replaced by draining the water from the tank 2 to the sewer 12. For this, the program of the control system unit 10 transfers the first three-way valve 5 to the second position, and the second three-way valve 6 moves to the second position, when this exit from the tank 2 through the hydraulic pump 4 by hydraulic lines 8 is connected to the sewer 12.

In case of exceeding the water level in the liquid tank 3, by a signal from the level sensor, the program of the control system unit 10 switches the second three-position valve 6 to the second position, while the output from the pump 4 is connected to the sewer 12.

To remove the liquid from the liquid tank 3 to the sewer, the first three-position valve 5 is transferred by the program of the control unit 10 to the third position, and the second three-position valve 6 to the second position, with the hydraulic lines 8, the inlet to the liquid tank 3 through the pump 4 is connected to the sewer 12.

For ease of use, the liquid tank 3 can control the degree of filling using a level sensor.

After rinsing and moving the water into the liquid tank 3, the process of processing the erasable products is carried out in accordance with the selected program. The washing process is completed by spinning, removing the laundry from the drum 2 and turning off the washing machine. In this case, the liquid container 3 contains a washing solution and / or rinse water for subsequent use. This liquid can be used both for subsequent washing and / or preparation of a washing solution, as well as for other domestic needs, for example, for filling the toilet flush tank, or redirected to other domestic needs.

The next time the washing machine is turned on, the program of the control unit 10 generates commands for switching the first three-way valve 5 from the first to the third position and the second three-way valve 6 from the first to the third position; in this case, the hydraulic lines 8 connect the liquid tank 3 to the inlet to the pump 4, the outlet of which is connected through the first three-position valve with the drain hole of the washing machine. A command is issued to turn on the pump. After turning on the pump 4, the liquid from the liquid tank 3 is transferred to the tank 2 of the washing machine.

In this case, the program of the control system unit 10 controls the sufficiency of water for the preparation of the washing solution. When it is sufficient, the fluid supply from the fluid tank 3 to the tank 2 is stopped by turning off the pump and transferring the first 5 and second 6 three-way directional valves to the initial state. In case of insufficient liquid from the tank 3 for preparing the solution or for rinsing, water is added from the water main 11. The command to turn on the valve 9 for supplying water from the water main 11 is generated by the program of the control system unit 10 according to the results of monitoring the level of water or washing solution in the tank 2.

Next, the processing of linen continues in accordance with the program, and the operation "rinse" ends with filling the container for liquid 3 with water after rinsing, as previously described. At the option of the user, a fluid container may be used to store a partially used detergent solution. To monitor the state of the washing solution or rinse water, known liquid quality sensors in the washing machine can be used.

The above embodiment of using the liquid tank 3 in the washing machine is only an example.

The described operating mode of the inventive washing machine can be supplemented or refined, including the integration of the program for managing the accumulation of liquid after rinsing in various systems and algorithms for controlling washing and rinsing. For example, a washing machine with a capacity of 3 for liquid may be equipped with a program for monitoring the duration of storage of this liquid in the tank and the function of its forced evacuation to the sewer after a certain shelf life.

The liquid container 3 can be used for other purposes, for example: - for cleaning a washing solution, - for its antibacterial treatment, - for heating water before rinsing, - for use in blasting washing products, - for vibration protection technologies, etc.

The use of a liquid container in the housing of the washing machine provides a compact execution of the washing machine, which is important mainly for household washing machines.

The implementation of the washing machine with a container for liquid allows slightly contaminated water to be reused for the preparation of a washing solution and / or to use this water for other household needs, for example, for a toilet flush tank.

A washing machine with a liquid container ensures the rational use of not only rinse water, but also the rational use of washing solution after washing, for example for reuse of washing solution. The liquid container of the washing machine can be made of two sections for accumulating water after rinsing and accumulating partially used washing solution.

Used in the inventive washing machine, hydraulic equipment with electromagnetic control is integrated into the reprogrammable control systems of modern washing machines. Hydraulic equipment can be controlled either by the automatic control system available in the washing machine, or operate under the control of a separate programmable controller.

It is advisable to fill the liquid container 3 with water or a washing solution before spinning, this will help reduce the vibration of the housing and reduce noise during the spin cycle.

The use of a liquid container in household washing machines will increase the vibration resistance of the washing unit and reduce the vibration of the washing machine body during the spin cycle, which will increase the performance of the washing machine, reduce the risk of breakdowns associated with vibration during the spin cycle, and reduce noise during the spin cycle.

The introduction into the housing of the washing machine of an additional liquid container provides direct savings of the washing solution and, therefore, detergents for the washing process, since it is possible to use partially used washing solution. Thus, the cost of the washing process is reduced.

It saves water for both washing solution and rinsing.

Another positive quality of introducing an additional liquid container into the washing machine body is to reduce the load on the sewer, since reuse of water after rinsing to prepare the washing solution will reduce the amount of draining it into the sewer.

The introduction of an additional capacity into the housing of the washing machine helps to reduce vibration and noise during washing and spinning, and therefore increases the comfort of using the washing machine.

Claims (1)

A drum-type washing machine, including a housing, at least a tank, or a tank and a drum for clothes to be washed, a pump, equipment, a control system unit, hydraulic lines for washing, removing the washing solution, filling the tank with water and removing water from the tank after rinsing in sewer, characterized in that the washing machine is equipped with an additional container for liquid, for partially spent washing solution and / or water after rinsing; located in the washing machine housing, the apparatus is equipped with two three-position valve, the first of which is connected to the drain channel from the washing machine tank, to the liquid tank, to the second three-way valve and to the inlet of the pump, and the second three-way valve is connected to the output by the hydraulic lines from the pump and to the first control valve, as well as to the hydraulic line connected to the sewer.