RU170329U1 - HIGH PRESSURE MOBILE WASHING UNIT - Google Patents

Abstract

The technical solution relates to devices for maintenance - external washing of various wheeled and tracked vehicles in field and stationary conditions with the possibility of water intake from natural sources. The objective of the proposed utility model is to develop a fundamentally new mobile washing unit for external washing, adapted for use as part of special mobile workshops for field maintenance and repair of various wheeled and tracked vehicles. This is achieved The fact that the mobile high-pressure washing system contains a high-pressure circuit including a high-pressure pump 7 with an electric motor 8 connected to a high-pressure hose 9 and a washing gun 10. The new one is that the washing system is additionally equipped with a low-pressure circuit, including a self-priming low pressure pump 2 with an electric motor 3 connected at the inlet to the intake hose 4 with a float 5 and a filter 6 for coarse water treatment, and at the outlet through a hydraulic accumulator 12 and a fine filter 13 odes with a high pressure circuit, while the pumps of both circuits are connected to the device 14 for electrical and fire shutdown. 2 s.p. f-ly, 4 ill.

Description

The technical solution relates to devices for maintenance - external washing of various wheeled and tracked vehicles in field and stationary conditions with the possibility of water intake from natural sources. It can be used both in the field at a remote washing and special treatment station, and in stationary conditions as part of a production line for maintenance of automobile and other equipment.

Known pumping unit described in patent No. 47458 (publ. 08/27/2005), comprising a motor and a pump mounted on pallets of a carrier frame with a handle for transportation. The disadvantages of the known device include the use of a gasoline engine, which leads to the need to create a supply of gasoline when working in the field and, as a result, the inconvenience when operating this device as part of mobile maintenance and repair equipment, the power plants of which operate on diesel fuel.

Known diesel pump unit DND 20/55 (fire pump) manufactured by Tulamashzavod software (http://www.tulamash.ru/catalog/44). The device can be used for washing automotive and other equipment and has one stage of water supply. The use of a centrifugal liquid pump in the design does not provide for self-absorption of water from natural sources that are below the installation level when it is started, and during operation it does not provide the necessary quality of cleaning the surfaces being cleaned, low at high water consumption. The design does not provide for the connection of devices for using special compositions for preliminary cleaning and special treatment when washing equipment.

Known washing installation described in the patent for utility model No. 158697 (publ. 01/20/2016), containing a high pressure pump, the inlet pipe of which is used to connect to the supply water line, the high pressure pipe of the high pressure pump is connected to the pipeline provided at the free end washing gun. A water softener filter (selected as a prototype) is installed in the gap of the water supply pipeline from the supply water line to the high pressure pump.

The disadvantages of the known washing installation include the impossibility of its use in the field with the intake of water from natural sources, and the presence of foamy chemical additives in the water mixing unit in front of the high pressure pump - to interruptions in the operation of the installation due to surge phenomena (air jams in workers cavities of the high pressure pump).

The objective of the proposed utility model is the development of a fundamentally new mobile washing unit for external washing, adapted for use as part of special mobile workshops for the maintenance and repair of various wheeled and tracked vehicles in the field.

The technical result consists in the implementation of this task.

Another technical result is to increase the efficiency and quality of cleaning wheeled and tracked vehicles when taking water from natural sources and to reduce its consumption during washing by using high pressure, as well as the ability to perform preliminary cleaning and special treatment (decontamination, degassing, disinfection) of the washing facility due to washing solutions and special liquids.

This is achieved by the fact that a mobile high-pressure washer comprising a high-pressure circuit, including a high-pressure pump with an electric motor, connected to a high-pressure hose and a washing gun, is characterized in that it is additionally equipped with a low-pressure circuit, including a self-priming low-pressure pump with an electric motor connected at the inlet to the intake hose with a float and a coarse water filter, and at the outlet through a hydraulic accumulator and a fine water filter with a circuit, you okogo pressure, wherein both pumps circuits are connected to electrical safety and firefighting device off.

The pressure hose washing gun is equipped with a foam set.

The mobile washing unit is structurally mounted on a welded frame under the dimensions of the transport niche for placing washing equipment in special box body trucks of workshops for maintenance and repair of various wheeled and tracked vehicles in the field.

A feature of the proposed mobile high-pressure washing unit is the presence of a low-pressure circuit, which ensures the intake of water from natural sources with its subsequent purification and supply under the necessary overpressure to the inlet of the high-pressure pump.

It should also be noted that the power supply of the mobile washing installation is carried out by connecting mobile workshops to the regular electric networks for maintenance and repair of various wheeled and tracked vehicles in the field, which ensures its use in a natural water source at the external washing station and special treatment.

The essence of the utility model is illustrated by drawings, where

in FIG. 1 shows a block diagram of a mobile high pressure washer;

in FIG. 2 shows a layout diagram of a high pressure washer (front view);

in FIG. 3 shows a layout diagram of a high pressure washer (side view);

in FIG. 4 shows an intake sleeve and a washing gun.

Positions in the drawings:

1 - tubular welded frame,

2 - self-priming centrifugal pump of low pressure,

3 - electric motor

4 - intake hose

5 - adjustable float,

6 - coarse filter,

7 - plunger high pressure pump,

8 - asynchronous electric motor,

9 - pressure hose high pressure

10 - washing gun

11 - spear tube,

12 - accumulator (storage tank),

13 - filter of fine water purification,

14 - device electrical and fire shutdown,

15 - handles for carrying the washing installation,

16 - quick disconnect connection

17 - plug (plug),

18 - five-pin connector,

19 - low pressure gauge,

20 - pressure switch,

21 - pneumatic valve

22 - safety valve

23 - red plug

24 - oil gauge window,

25 - output fitting to the washing gun,

26 - connecting nuts,

27 - the clamp of the washing gun,

28 - adapter

29 - housing for mounting the device 14,

30 - panel plug,

31 - on-off switch,

32 - quick disconnect connection.

The mobile high-pressure washing unit is mounted on a tubular welded frame 1, on which a low-pressure circuit is installed, including a low-pressure self-priming centrifugal pump 2 with an electric motor 3. At the inlet, a self-priming centrifugal pump 2 is connected to an intake sleeve 4 with a height-adjustable float 5 and a filter 6 rough water purification having a non-return valve. The float 5 holds the filter 6 at a depth of at least 200 mm. A high-pressure circuit is also installed on the frame 1, including a high-pressure plunger pump 7 connected by a flange to an asynchronous electric motor 8 and connected to a reinforced pressure head sleeve 9 and a washing gun 10 with a spear tube 11. A self-priming centrifugal pump 2 at the outlet is connected through a hydraulic accumulator (storage tank) 12 and filter 13 for fine water purification with a high pressure circuit. Pumps 2 and 7 are connected to the device 14 electrical protection and fire shutdown. A self-priming centrifugal pump 2 delivers water to the filter 13 for fine water purification, from where water enters the high-pressure plunger pump 7, driven by an asynchronous electric motor 8. The washing unit is transported by two people, for which it is equipped with handles 15. The self-priming centrifugal pump 2 consists of a housing in which the impeller rotates, mounted on the shaft of the electric motor. To prevent water leakage through the shaft, sealing devices are installed. The pump casing is made of cast iron, and the impeller is made of brass. The intake hose 4 is connected to the suction side through a quick-disconnect connection 16. It is installed on the pump body inlet 16. For filling the pump with water (before starting work), a plug (plug) is installed on the body 17. A five-pin connector is installed on the pump body 2 outlet 18. Water discharge from the pump 2 is made through the plug 17 and the inlet 16.

The five-pin connector 18 is designed to supply water to the fine filter 13, a hydraulic accumulator (storage tank) 12, a low pressure gauge 19 and a pressure switch 20.

The hydraulic accumulator (storage tank) 12 is designed to accumulate water, prevent water hammer and maintain a constant working pressure in the low pressure circuit of the washing installation by turning on the power of the pump 2 through the pressure switch 20.

Structurally, the accumulator 12 is a steel vessel, divided into two chambers: water and air. The pressure in the accumulator 12 can be increased and lowered through the pneumatic valve 21, similar to the nipple of a car tire.

The entry and exit of the accumulator 12 of water is carried out through a threaded connecting pipe.

To control the pressure in the system, a pressure gauge 19 is installed. The pressure switch 20 is designed to automatically turn on and off the power supply network of the self-priming pump 2.

The fine filter 13 serves to purify the water entering the high pressure circuit — a high pressure plunger pump 7. The filter 13 consists of a housing with a screw-on transparent flask, in which a replaceable filtering element is installed - a cartridge.

A valve 21 is located on the filter housing 13 to remove air from the low pressure circuit when it is filled with water.

The high pressure generated by the pump 7 is controlled by a safety valve 22. Changes to the valve 22 during operation of the washing system are not allowed. A red plug 23 is installed on the gearbox of the pump 7, eliminating the loss of oil during transportation of the washing machine. To control the oil level in the tank, use the oil gauge window 24 or the dipstick, installed before starting work instead of the red plug 23.

The reinforced pressure head sleeve 9 is designed to supply water from the outlet fitting 25 to the washing gun 10. For connection, the ends of the pressure hose 9 are equipped with connecting nuts 26. The washing gun 10 is designed to connect a spear tube 11. To prevent unauthorized activation, the handle of the washing gun 10 is equipped the latch 27, the adapter 28. The housing 29 is intended for installation of devices for electrical and fire shutdown, panel plug 30, on / off switch 31 of the electric motor STUDIO self-priming pump 2. Intake corrugated sleeve 4, the cleaning apparatus is designed to suck water from the reservoirs. Sleeve 4 has a length of 8 m, an inner diameter of 25 mm. On the suction side, the intake hose 4 is equipped with a coarse strainer 6 with a non-return valve and a height-adjustable float 5. The connection of the sleeve 4 to the self-priming pump 2 is carried out by a quick connection 32.

The principle of operation of a mobile high pressure washer is to use two circuits of pumping equipment.

Pump 2 of the low pressure circuit operates on the principle of an automatic pressure control system. After turning on the pump 2, water fills the system from the non-return valve to the filter 13 for fine water purification. In this case, the water pressure in the system rises to the upper limit of the pressure switch 20. The pressure switch 20 includes a self-priming pump 2. When you turn on the plunger pump 7 high pressure circuit high pressure water instantly comes from the accumulator 12 under pressure. As water flows, the pressure in the system drops to the lower limit of the pressure switch 20, after which the pressure switch 20 again turns on the self-priming pump 2. Water enters the high pressure plunger pump 7 and into the hydraulic accumulator 12. When the pressure rises to the upper limit, the pressure switch 20 turns on the pump again. As long as there is a flow of water from the system, the on and off cycles of the pump 2 of the low pressure circuit are repeated.

The operation of the washing installation is as follows.

Lower the intake corrugated sleeve 4 with the float 5 into the pond. In order to avoid "airing" of the system, sleeve 4 must be laid upstream of pump 2 and not allowed to be above the pump level. To accelerate the pumping of water, water is poured into the intake hose 4 and connected to the pump 2 of the low pressure circuit. The plug is turned out in the upper part of the pump casing 2 of the low pressure circuit and through this hole the pump part is filled with water. Air is removed as the system fills with water. Put the plug in place and tighten. Turn on the low pressure pump 2. Remove through the valve 21 air from the low pressure circuit of the washing installation. After removing air and increasing water pressure in the system to the upper limit of the pressure switch 20, the low-pressure pump 2 is automatically turned off. Starting and stopping pressure adjustment is possible only when the hydraulic system is under pressure.

The electric motor 8 of the drive of the high pressure pump 7 of the washing system high pressure circuit is turned on. Set the locking device of the washing gun 10 to the "open" position. They press the lever handle of the washing gun 10, direct a jet of high pressure water to the washing object and carry out the washing process.

When using detergent, a lance-foam injector is connected to the adapter 28, after having previously filled the lance reservoir of the foam injector with washing liquid. The pressure hose 9 high pressure is connected to the output end 25 of the pump 7 high pressure. Open the valve for regulating the supply of washing liquid on a spear-foam injector. A jet is directed to the object being cleaned and the detergent is left on the surface for several minutes to effect a reaction. Turn off the spear injector and install the spray nozzle 23. Then, the object is washed, controlling the complete removal of detergent from the surface being cleaned.

The proposed washing installation is adapted for transportation as part of the facilities of mobile maintenance and repair facilities.

Claims (3)

1. A mobile high-pressure washer, comprising a high-pressure circuit, comprising a high-pressure pump with an electric motor, connected to a high-pressure hose and a washing gun, characterized in that it is further equipped with a low-pressure circuit, including a self-priming low-pressure pump with an electric motor connected to inlet with a suction hose with a float and a coarse water filter, and at the outlet through a hydraulic accumulator and a fine water filter with a high pressure circuit, Pumps that both circuits are connected with the device electrical safety and fire off. 2. The mobile washing installation according to claim 1, characterized in that the washing gun is equipped with a foam set. 3. The mobile washing installation according to claim 1, characterized in that it is structurally mounted on a welded frame under the dimensions of the transport niche for placing washing equipment in a special workshop body for maintenance and repair of special wheeled and tracked vehicles in the field.

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