WO2013057827A1 - Cleaning fluid supply device - Google Patents

Cleaning fluid supply device Download PDF

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Publication number
WO2013057827A1
WO2013057827A1 PCT/JP2011/074269 JP2011074269W WO2013057827A1 WO 2013057827 A1 WO2013057827 A1 WO 2013057827A1 JP 2011074269 W JP2011074269 W JP 2011074269W WO 2013057827 A1 WO2013057827 A1 WO 2013057827A1
Authority
WO
WIPO (PCT)
Prior art keywords
cleaning
cleaning liquid
liquid
water
storage tank
Prior art date
Application number
PCT/JP2011/074269
Other languages
French (fr)
Japanese (ja)
Inventor
豊 竹之内
芳永 大津
清富 崎口
輝見 羽渕
智美 中田
徹哉 八木下
鈴木　淳一
Original Assignee
フジクス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by フジクス株式会社 filed Critical フジクス株式会社
Priority to KR1020127028729A priority Critical patent/KR101375885B1/en
Priority to PCT/JP2011/074269 priority patent/WO2013057827A1/en
Priority to JP2012553131A priority patent/JP5388151B2/en
Priority to CN201180023425.9A priority patent/CN103221153B/en
Priority to TW101138234A priority patent/TWI468233B/en
Publication of WO2013057827A1 publication Critical patent/WO2013057827A1/en
Priority to HK13112886.7A priority patent/HK1185306A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0325—Control mechanisms therefor

Definitions

  • the present invention relates to a cleaning solution supply apparatus which can use tap water, well water, etc., add a chemical solution to enhance the sterilization and deodorizing effects to form a cleaning solution, pressurize it with a high-pressure pump, and deliver it.
  • a high pressure water jet cleaning method As described above, various powerful cleaning methods have been proposed to remove solids adhering to the drainage pipe, and one of them is a high pressure water jet cleaning method.
  • a bendable hose having a high-pressure water jet nozzle attached to its tip is inserted into a drain pipe, high-pressure pump supplies high-pressure wash water to the hose, and the wash water is jetted from the nozzle An operation to advance the inside of the drainage pipe is performed while Thereby, the solid substance etc. which adhered in the drainage pipe by the injection pressure of the wash water from a high pressure water injection
  • spray nozzle can be crushed or exfoliated and removed.
  • the applicant of the present invention has already proposed the high pressure water jet cleaning method in the drain pipe and the high pressure water jet nozzle used for the same, which is disclosed in Patent Document 1 and Patent Document 2 etc. There is.
  • the cleaning solution is temporarily stored in the cleaning solution storage tank provided in the cleaning solution supply device, pressurized by a high pressure pump driven by the power of the engine by the internal combustion engine, and discharged from the injection nozzle.
  • the cleaning liquid supply device is set to have the ability to supply the cleaning liquid simultaneously to about three jet nozzles. In this case, depending on the degree of progress of each operation, the cleaning liquid may be simultaneously discharged from the three injection nozzles, or the cleaning liquid may not be discharged from any of the injection nozzles.
  • the amount of the high-pressure cleaning liquid delivered from the high-pressure pump side changes every moment due to the discharge condition of the cleaning liquid from the respective injection nozzles and the difference in the discharge amount of the cleaning liquid in each injection nozzle.
  • the piping of the spillway is generally formed so that the residual water of the cleaning solution pressurized by the high pressure pump is returned to the inside of the storage tank.
  • the cleaning liquid delivery unit described above when the cleaning liquid is discharged from a small number of injection nozzles, or when the cleaning liquid is not discharged from any of the injection nozzles, the pressure of the cleaning liquid pressurized by the high pressure pump Most or all of the solution is returned to the above-described cleaning solution storage tank. That is, the cleaning liquid circulates between the high pressure pump and the cleaning liquid storage tank through the above-mentioned spillway piping.
  • the present invention has been made focusing on the above-mentioned problems, and in the cleaning liquid delivery unit adapted to deliver the cleaning liquid by a high pressure pump, the above-mentioned spillway, regardless of the discharge amount of the cleaning liquid from the injection nozzle. It is an object of the present invention to provide a cleaning liquid supply apparatus capable of suppressing the temperature rise of the cleaning liquid in the cleaning liquid storage tank by adopting control means for minimizing the amount of the cleaning liquid returned to the cleaning liquid storage tank through the piping. It is
  • a cleaning solution supply apparatus which has been made to solve the above-mentioned problems, comprises a cleaning solution storage tank for temporarily storing a cleaning solution, and a high pressure pump for pressurizing and delivering the cleaning solution from inside the cleaning solution storage tank.
  • the residual water in the high-pressure cleaning fluid from the fluid is returned to the inside of the cleaning fluid storage tank, the cleaning fluid supply apparatus comprising:
  • the engine controller executes control to increase or decrease the number of revolutions of the engine.
  • a washing liquid is introduced, and a chemical dilution and mixing tank for generating a washing solution by adding and mixing a chemical solution to the washing water is provided, and the chemical solution dilution and mixing tank is directed to the washing solution storage tank. It is desirable that the cleaning solution be sent.
  • a pH sensor for measuring the pH value of the cleaning liquid in the mixing tank is disposed in the chemical solution dilution and mixing tank, and is added into the chemical solution dilution and mixing tank based on the pH value obtained by the pH sensor. The amount of the chemical solution added is controlled.
  • a float sensor for detecting the amount of cleaning liquid in the cleaning liquid storage tank and cleaning water to be supplied into the chemical solution dilution mixing tank based on detection information of the amount of liquid by the float sensor.
  • a water supply valve for controlling the amount is provided, and when the detected value of the liquid amount by the float sensor reaches a predetermined value, control for stopping water supply into the chemical solution dilution mixing tank by the water supply valve is executed. Configured as.
  • a liquid temperature sensor for measuring the temperature of the cleaning liquid in the cleaning liquid storage tank is provided, and the liquid chemical dilution mixing tank by the water supply valve is detected when the liquid temperature sensor detects an increase in liquid temperature above a predetermined value.
  • the cleaning liquid in the cleaning liquid storage tank can be discharged as blow water.
  • control to stop the water supply by the water supply valve based on the detection information of the liquid amount by the float sensor the control to increase the water supply amount by the water supply valve based on the detection information of the liquid temperature by the liquid temperature sensor Configured to be prioritized to run.
  • control is performed to increase or decrease the rotational speed of the engine that rotationally drives the high pressure pump according to the flow rate of the cleaning liquid advancing from the high pressure pump to the discharge path of the high pressure cleaning liquid. Since it is comprised, the quantity of the residual water returned to the inside of a washing
  • the chemical solution diluting and mixing tank is provided, and the chemical solution is added to the cleaning water from, for example, water or the like in this chemical solution diluting and mixing tank to generate the cleaning solution. It is sent to the cleaning solution storage tank.
  • the pH sensor which measures the pH value of the washing solution in the medical fluid dilution mixing tank is arranged, and the addition amount of the medical fluid added in the medical fluid dilution mixing tank is based on the pH value obtained by the pH sensor concerned. Act to be controlled. Therefore, accurate management of the addition amount of the chemical solution is ensured, and it becomes possible to obtain cleaning water having a stable concentration of the chemical solution.
  • a float sensor for detecting the amount of the cleaning liquid in the cleaning liquid storage tank and a liquid temperature sensor for measuring the temperature of the cleaning liquid are provided, and the solution is injected into the cleaning liquid storage tank using the float sensor. Control the level of the cleaning solution. This can achieve an appropriate water saving effect.
  • the liquid temperature sensor monitors the temperature of the cleaning liquid in the cleaning liquid storage tank, and when the temperature of the cleaning liquid rises above a predetermined level, the injection amount of the cleaning water from the water supply etc. is increased to increase the amount in the cleaning liquid storage tank. It acts so that the cleaning fluid can be positively discharged as blow water. This operation makes it possible to reliably lower the temperature of the cleaning liquid in the cleaning liquid storage tank, and even when the temperature control of the cleaning liquid in the storage tank is not good due to the rotation speed control of the engine that drives the high pressure pump described above. The above-described blow water discharge operation can ensure safety.
  • FIG. 7 is a schematic view mainly showing the configuration of a cleaning solution delivery unit in the cleaning solution supply device of the same. It is a side view which shows the example which mounted the housing
  • This cleaning solution supply apparatus is roughly divided into a cleaning solution generation unit U1 shown in FIG. 1 and a cleaning solution delivery unit U2 shown in FIG. 2.
  • the cleaning solution storage tank shown by reference numeral T2 is illustrated in common. It is done. That is, the upstream side of the cleaning liquid storage tank T2 constitutes the cleaning liquid generation unit U1, and the downstream side of the cleaning liquid storage tank T2 constitutes the cleaning liquid delivery unit U2.
  • the cleaning liquid generation unit shown in FIG. 1 has a function of generating a cleaning liquid by adding a chemical solution to cleaning water supplied from, for example, a tap water, and sending the cleaning liquid to the cleaning liquid storage tank U2.
  • symbol 1 shows the tap provided with the control lever, and said tap 1 is made into an open state, while the washing
  • the water tap 1 is connected to a solenoid valve 2 which is controlled to open and close by an actuator such as a motor.
  • a flow sensor 3 is connected to the downstream side of the solenoid valve 2.
  • a water amount adjustment valve 4 having an operation lever is connected to the flow rate sensor 3, and flush water from the tap water passing through the water amount adjustment valve 4 is configured to be supplied to the chemical solution dilution mixing tank T1.
  • the cleaning liquid production unit U1 storage tanks 6 and 7 of the chemical liquid to be added and diluted with the cleaning water supplied to the chemical liquid dilution mixing tank T1 are disposed.
  • Sodium hypochlorite and hydrochloric acid are respectively stored in the chemical solution storage tanks 6, 7 as an example, and the respective chemical solutions stored in the storage tanks 6, 7 are driven by the chemical solution delivery pumps 8, 9 It is added into the chemical solution dilution / mixture tank T1, and is diluted by the wash water supplied from the water supply to produce a wash solution.
  • the cleaning liquid generated in the chemical solution dilution and mixing tank T1 is sent to the cleaning liquid storage tank T2.
  • a pH sensor 11 is disposed in the chemical solution dilution / mixture tank T1, and the pH sensor 11 measures the pH value of the cleaning liquid in the chemical solution dilution / mixture tank T1.
  • the pH value of the cleaning liquid in the mixing tank T1 is controlled to be 6.5. That is, the value measured by the pH sensor 11 is transmitted to the pH controller 12, and the pH controller 12 is configured to transmit a control signal to the relay device 13.
  • the relay device 13 is also configured to be supplied with a flow rate detection signal from the flow rate sensor 3 described above, and the relay device 13 detects a control signal from the pH controller 12 and a flow rate detection from the flow rate sensor 3 In response to the signal, the drive current from the pump drive power supplies 14 and 15 provided corresponding to the respective chemical solution delivery pumps 8 and 9 is turned on or off.
  • the chemical solution delivery pumps 8 and 9 operate individually and intermittently, and the chemical solutions respectively stored in the chemical solution storage tanks 6 and 7 are appropriately added into the chemical solution dilution mixing tank T1.
  • the pH value of the cleaning liquid in the tank T1 is adjusted to the controlled value. Therefore, the cleaning liquid transferred from the chemical dilution / mixture tank T1 to the cleaning liquid storage tank T2 is sent as cleaning water in which accurate control of the pH value is ensured and the concentration of the chemical liquid is stable.
  • a float sensor 17 for detecting the amount of cleaning solution in the cleaning solution storage tank T2 is disposed.
  • the float sensor 17 operates to send a detection signal to the water saving controller 19 when the cleaning liquid stored in the cleaning liquid storage tank T2 is full or nearly full.
  • a water saving controller 19 receiving a detection signal from the float sensor 17 sends a control signal to the solenoid valve 2 as a water supply valve to close the solenoid valve 2 and stop the water supply into the chemical solution dilution mixing tank T1. Run.
  • the supply of the cleaning liquid from the chemical solution dilution mixing tank T1 to the cleaning liquid storage tank T2 is stopped. That is, the float sensor 17 and the water saving controller 19 appropriately manage the amount of the cleaning liquid stored in the cleaning liquid storage tank T2 and can contribute to saving the cleaning water from the water supplied to the chemical solution dilution mixing tank T1. .
  • the cleaning liquid storage tank T2 further includes a liquid temperature sensor 18 for measuring the temperature of the cleaning liquid in the cleaning liquid storage tank T2, and the measured value by the liquid temperature sensor 18 is sent to the water saving controller 19 described above. It is configured. That is, when the liquid temperature sensor 18 detects an increase in the liquid temperature above a predetermined value, the water saving controller 19 sends a control signal to the solenoid valve 2 as a water supply valve to open the solenoid valve 2. The control for increasing the amount of water supplied into the chemical solution dilution mixing tank T1 is executed.
  • the amount of the cleaning liquid sent from the chemical solution dilution mixing tank T1 to the cleaning liquid storage tank T2 increases, and the cleaning liquid in the cleaning liquid storage tank T2 is discharged as the blow water 20. Therefore, the temperature of the cleaning liquid in the cleaning liquid storage tank T2 is lowered, and the liquid temperature sensor 18 detects a temperature drop to a predetermined value to control to squeeze the solenoid valve 2 as a water supply valve or to squeeze the flow rate. Is done.
  • the increase in the temperature of the cleaning liquid in the cleaning liquid storage tank T2 is caused by the large amount of cleaning liquid heated by the high-pressure pump in the cleaning liquid delivery unit U2 described later returning into the cleaning liquid storage tank T2 through the spillway. It is. Although the means for suppressing the temperature rise of the cleaning liquid in the cleaning liquid storage tank T2 is provided in the cleaning liquid delivery unit U2 described later, the cleaning liquid in the cleaning liquid storage tank T2 is discharged as the blow water 20. Measures to suppress temperature rise are used as emergency measures.
  • the water supply valve (electromagnetic valve 2) based on the detection information of the liquid amount by the float sensor 17
  • the water supply valve electromagnettic based on the detection of the liquid temperature rise by the liquid temperature sensor 18
  • the control to increase the water supply amount is preferentially executed by opening the valve 2).
  • the cleaning liquid delivery unit U2 shown in FIG. 2 has a function of pressurizing and delivering the cleaning liquid in the cleaning liquid storage tank T2 to a high pressure using a high pressure pump.
  • reference numeral 22 denotes the above-mentioned high pressure pump, which is driven by receiving rotational driving force of the engine 23 by an internal combustion engine such as a diesel engine.
  • the high pressure pump 22 includes a suction passage 22a for suctioning the cleaning fluid in the cleaning fluid storage tank T2, a discharge passage 22b for discharging the high pressure cleaning fluid pressurized by the high pressure pump 22, and a high pressure cleaning fluid from the high pressure pump 22.
  • a residual water channel 22c is provided to return the residual water of the water into the cleaning liquid storage tank T2.
  • the high pressure pump 22 is provided with a pressure sensor 24 for measuring the pressurizing force in the high pressure pump 22, and the engine 23 is provided with a rotation sensor 25 for measuring the number of revolutions of the engine 23.
  • the output signals of the pressure sensor 24 and the rotation sensor 25 are configured to be supplied to an engine controller 27.
  • a flow switch 28 is disposed in a discharge passage 22 b for discharging the high-pressure cleaning liquid in the high-pressure pump 22, and a discharge valve 29 provided with an operation lever is connected via the flow switch 28.
  • the discharge valve 29 is connected to a spray nozzle (not shown) for washing liquid through a bendable hose.
  • the flow switch 28 has a function of detecting whether or not the cleaning fluid is flowing through the discharge passage 22b, and the information is supplied to the engine controller 27 described above.
  • FIG. 2 shows a state in which one discharge valve 29 is connected to the flow switch 28, in the case where a plurality of cleaning nozzles are used, the flow switch 28 may be used after the flow switch 28.
  • spray nozzle of this is connected in parallel.
  • a solenoid valve 31 controlled by an actuator such as a motor is connected to the spillway 22c for returning residual water in the high-pressure cleaning fluid from the high-pressure pump 22 back into the cleaning fluid storage tank T2.
  • a pressure regulating valve 32 is connected in parallel with 31.
  • the engine controller 27 is configured to be supplied with detection information from the pressure sensor 24, the rotation sensor 25, and the flow switch 28.
  • the engine controller 27 is attached to the engine 23 to be an engine A control signal is supplied to a throttle control unit 33 that controls the rotational speed of the engine.
  • the engine controller 27 also supplies a control signal to the solenoid valve 31 disposed in the spillway 22c.
  • the detection information from the flow switch 28 disposed in the discharge path 22b of the high pressure cleaning liquid that is, the information on the presence or absence of the flow of the cleaning liquid in the ejection path 22b
  • the engine controller 27 is supplied.
  • the engine controller 27 causes the engine 23 to idle relative to the throttle control unit 33. Send out a control signal.
  • the engine controller 27 sends a signal for controlling the valve opening state to the solenoid valve 31. Therefore, the pressure from the high-pressure pump 22 is not applied to the cleaning liquid returned to the cleaning liquid storage tank T2 via the spillway 22c, and the liquid temperature of the cleaning liquid returned to the storage tank T2 does not rise.
  • the engine controller 27 instructs the throttle control unit 33 to increase the rotation of the engine 23.
  • the discharge pressure of the cleaning liquid can be manually set by the engine controller 27, and the number of rotations of the engine 23 is controlled so that the discharge pressure of the cleaning liquid set manually, for example, 20 MPa.
  • the rotational speed control of the engine 23 is performed such that pressure information from the pressure sensor 24 provided in the high-pressure pump 22 is fed back to the engine controller 27 to achieve the set discharge pressure.
  • the engine controller 27 sends a signal to control the solenoid valve 31 to close it, and the residual water from the high-pressure pump 22 is sent to the solenoid valve 31 via the pressure regulator valve 32 and the spillway 22c. It will be returned into the storage tank T2.
  • the number of high-pressure water injection nozzles used for the cleaning operation increases, for example, the flow rate of the cleaning liquid in the discharge passage 22b increases, and the pressure by the pressure sensor 24 provided in the high-pressure pump 22 increases. The measured value will decrease. The decrease in the pressure measurement value by the pressure sensor 24 is fed back to the engine controller 27 as described above, and control is performed to increase the rotational speed of the engine 23 so that the discharge pressure of the cleaning liquid becomes a preset value. .
  • the output signal of the rotation sensor 25 provided in the engine 23 is supplied to the engine controller 27 as described above. This acts to send a control signal for maintaining the idling state to the throttle control unit 33 when the engine 23 becomes lower than the set idling state, for example, due to several factors.
  • the engine 23 when the engine 23 reaches, for example, a set rotational speed or more due to several factors, it acts to send a control signal to the throttle control unit 33 to reduce the engine rotational speed. Thereby, the stability of the rotational speed control of the engine 23 can be ensured.
  • the pressure sensor 24 detects the magnitude of the flow rate of the cleaning liquid advancing from the high pressure pump 23 to the discharge path 22b, and the number of revolutions of the engine 23 is increased or decreased according to the flow rate of the cleaning liquid.
  • the control to be performed it is possible to set the amount of the cleaning liquid returned from the high pressure pump 22 to the cleaning liquid storage tank T2 via the above-mentioned spillway 22c as small as possible.
  • the degree to which the cleaning liquid stored in the high pressure pump 22 receives high-pressure energy and is stored can return to the cleaning liquid storage tank T2 via the spillway 22c can be reduced. It is possible to suppress the temperature rise of the cleaning liquid in the cleaning liquid storage tank. As a result, it is possible to secure the safety of the operation using the high-pressure water injection nozzle, and to obtain the unique effects described in the column of the above-described effects of the invention.
  • the chemical solution diluting and mixing tank T1 is provided, and the cleaning liquid formed by adding the chemical liquid to the cleaning water is used, but this does not use the chemical liquid.
  • the washing water from the above may be used as it is, and may be discharged as a high-pressure washing liquid using the washing liquid delivery unit U2 shown in FIG. Also with such a configuration, it is possible to achieve the technical problem that the temperature rise of the cleaning liquid in the cleaning liquid storage tank T2 can be effectively suppressed.
  • FIG. 3 and FIG. 4 show an example of a vehicle equipped with the cleaning liquid supply device described above.
  • a box-shaped casing 42 is mounted on the cargo bed portion of the vehicle 41, and the cleaning liquid supply device shown in FIGS. 1 and 2 is accommodated in the casing 42.
  • a door 43 pivotally supported so as to be horizontally opened in the horizontal direction is attached to the front of the left side surface of the housing 42 mounted on the cargo bed portion of the vehicle 41.
  • a door 44 pivotally supported so as to be open in the horizontal direction is attached.
  • a flip-up door 45 whose upper portion is pivotally supported is attached to the rear surface of the housing 41.
  • FIG. 5 is a perspective view of the case 42 mounted on the bed of the vehicle 41 as viewed from the top, and the left side in FIG. 5 is the front (driver's seat side).
  • the housing 42 is divided into a front chamber and a rear chamber by a central partition wall 42a, and the above-described engine 23 is mounted substantially at the center of the front chamber, and the high pressure pump 22 is disposed adjacent thereto.
  • the front of the front chamber is an exhaust air space 46 in which a radiator attached to the engine 23 and the like is accommodated, and although not shown in the figure, the case 42 is provided with the exhaust air space 46.
  • An exhaust port etc. are provided in the top plate.
  • the cleaning solution storage tank T2 is disposed, and as shown in FIG. 6, most of the cleaning solution generation unit U1 shown in FIG. 1 is placed on the storage tank T2. It has features.
  • the operation panel 47 of the cleaning liquid supply device is disposed toward the back, and the operation panel 47 is operated in a state where the door 45 shown in FIG. 4 is flipped up.
  • the reference numeral 48 is a space for storing equipment used together with the cleaning liquid supply device.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Sewage (AREA)

Abstract

A cleaning fluid supply device is provided with: a cleaning fluid retention tank (T2) that temporarily retains a cleaning fluid; a high-pressure pump (22) that pressurizes the cleaning fluid from the cleaning fluid retention tank to high pressure and transports the same; an internal combustion engine (23) that rotationally drives the high pressure pump; and an engine controller (27) that implements rotational speed control of the engine. In addition, a discharge path (22b) for discharging the high pressure cleaning fluid pressurized by the high-pressure pump (22) and an excess fluid path (22c) that returns excess fluid out of the high-pressure cleaning fluid from the high-pressure pump into the cleaning fluid retention tank (T2) are provided. The engine controller (27) acquires the flow rate of the cleaning fluid moving forward in the discharge path (22b) for the high pressure cleaning fluid from the high-pressure pump (22) by a high pressure sensor (24) provided on the high-pressure pump and implements control that increases or reduces the rotational speed of the engine.

Description

洗浄液供給装置Cleaning solution supply device
　この発明は、水道水もしくは井戸水等を利用し、除菌および消臭効果を高めるために薬液を添加して洗浄液とし、これを高圧ポンプで加圧して送出することができる洗浄液供給装置に関する。 The present invention relates to a cleaning solution supply apparatus which can use tap water, well water, etc., add a chemical solution to enhance the sterilization and deodorizing effects to form a cleaning solution, pressurize it with a high-pressure pump, and deliver it.
　近年、都市部やその近郊においては、土地の有効活用の観点から高層ビル形式の集合住宅が多数建設されている。このビル形式の集合住宅から排出される生活排水（汚水）は、個別の宅内に敷設された専用排水管からビル内部に設けられた共用排水管を介して外部の横引き管に排出されるように構成され、これにより良好な生活環境が維持されるようになされている。 In recent years, in urban areas and their suburbs, many high-rise apartment buildings have been constructed from the viewpoint of effective use of land. Living drainage (sewage) discharged from this type of apartment complex is discharged from the dedicated drainage pipe laid in each house via the common drainage pipe provided inside the building to the outside horizontal draw pipe It is designed to maintain a good living environment.
　ところで、前記した生活排水には多量の残滓や油脂などが含まれるために、これが排水管の管壁に固形物となって強固に付着し、病原菌の発生や悪臭の放出などの原因となって生活環境を著しく悪化させる。また時には管壁に付着した固形物等が排水管を詰まらせる問題も発生するため、一定期間毎に専用排水管ならびに共用排水管の清掃が必要になる。 By the way, since the above-mentioned domestic wastewater contains a large amount of debris, fats and oils, etc., it becomes a solid and adheres firmly to the wall of the drainage pipe, causing the generation of pathogenic bacteria and the release of odor. Significantly worsen the living environment. At the same time, it may be necessary to clean the dedicated drainage pipe and the common drainage pipe at regular intervals, since the solid matter adhering to the pipe wall may cause clogging of the drainage pipe.
　前記したように排水管内に付着した固形物を除去するために、種々の強力な洗浄方法が提案されており、その一つに高圧水噴射洗浄法が存在する。
　この高圧水噴射洗浄法は、高圧水噴射ノズルを先端部に取り付けた屈曲可能なホースを排水管内に挿入し、高圧ポンプによって高圧化した洗浄水をホースに供給し、前記ノズルより洗浄水を噴射させながら排水管内を前進させる操作がなされる。　これにより、高圧水噴射ノズルからの洗浄水の噴射圧力によって排水管内に付着した固形物等を解砕または剥離除去することができる。 As described above, various powerful cleaning methods have been proposed to remove solids adhering to the drainage pipe, and one of them is a high pressure water jet cleaning method.
In this high-pressure water jet cleaning method, a bendable hose having a high-pressure water jet nozzle attached to its tip is inserted into a drain pipe, high-pressure pump supplies high-pressure wash water to the hose, and the wash water is jetted from the nozzle An operation to advance the inside of the drainage pipe is performed while Thereby, the solid substance etc. which adhered in the drainage pipe by the injection pressure of the wash water from a high pressure water injection | spray nozzle can be crushed or exfoliated and removed.
　前記した排水管内の高圧水噴射洗浄法およびこれに利用される高圧水噴射ノズルなどについては、本件出願人からもすでに提案がなされており、これは特許文献１および特許文献２などに開示されている。 The applicant of the present invention has already proposed the high pressure water jet cleaning method in the drain pipe and the high pressure water jet nozzle used for the same, which is disclosed in Patent Document 1 and Patent Document 2 etc. There is.
　一方、昨今においては前記した排水管の洗浄に利用される洗浄水についても、除菌および消臭効果を高めるために薬液を添加する提案がなされており、例えば次亜塩素酸ソーダなどの無機アルカリ製剤や、これに加えて塩酸などの無機酸を添加して洗浄液として利用することも提案されている。これは特許文献３などに開示されている。 On the other hand, recently, it has been proposed to add a chemical solution to the cleaning water used for cleaning the above-mentioned drainage pipe in order to enhance the microbicidal and deodorizing effects, for example, an inorganic alkali such as sodium hypochlorite It has also been proposed to use a preparation or an inorganic acid such as hydrochloric acid in addition to this as a washing solution. This is disclosed in Patent Document 3 and the like.
特開２００２－２７５９８４号公報Unexamined-Japanese-Patent No. 2002-275984 特開２００８－１６３６４４号公報JP, 2008-163644, A 特開２０１０－１５０３１９号公報Unexamined-Japanese-Patent No. 2010-150319
　ところで前記した洗浄液は、洗浄液供給装置に備えられた洗浄液貯留タンク内に一時的に貯留され、内燃機関によるエンジンの動力により駆動される高圧ポンプにより加圧されて噴射ノズルから吐出されるように構成されており、この洗浄液供給装置は例えば３本程度の噴射ノズルに対して、同時に洗浄液を供給できる能力に設定されている。この場合、それぞれの作業の進行度合いに応じて、３本の噴射ノズルから同時に洗浄液が吐出される場合もあり、いずれの噴射ノズルからも洗浄液が吐出されない場合も生ずる。 The cleaning solution is temporarily stored in the cleaning solution storage tank provided in the cleaning solution supply device, pressurized by a high pressure pump driven by the power of the engine by the internal combustion engine, and discharged from the injection nozzle. For example, the cleaning liquid supply device is set to have the ability to supply the cleaning liquid simultaneously to about three jet nozzles. In this case, depending on the degree of progress of each operation, the cleaning liquid may be simultaneously discharged from the three injection nozzles, or the cleaning liquid may not be discharged from any of the injection nozzles.
　前記したように、それぞれの噴射ノズルからの洗浄液の吐出状況や、各噴射ノズルにおける洗浄液の吐出量の相異などにより、高圧ポンプ側から送出される高圧洗浄液の量は刻々と変化する。しかも、高圧ポンプにおいては洗浄液の吐出量の如何にかかわらず、ある程度の洗浄液の吐出圧力を維持する必要がある。
　したがって洗浄液送出ユニットにおいては、一般的に高圧ポンプにより加圧された洗浄液の余水分が、前記貯留タンク内に戻されるように余水路の配管が形成されている。 As described above, the amount of the high-pressure cleaning liquid delivered from the high-pressure pump side changes every moment due to the discharge condition of the cleaning liquid from the respective injection nozzles and the difference in the discharge amount of the cleaning liquid in each injection nozzle. Moreover, in the high-pressure pump, it is necessary to maintain the discharge pressure of the cleaning liquid to a certain extent regardless of the discharge amount of the cleaning liquid.
Therefore, in the cleaning solution delivery unit, the piping of the spillway is generally formed so that the residual water of the cleaning solution pressurized by the high pressure pump is returned to the inside of the storage tank.
　それ故、前記した洗浄液送出ユニットの稼働中において、少ない数の噴射ノズルから洗浄液が吐出される場合、もしくはいずれの噴射ノズルからも洗浄液が吐出されない場合においては、高圧ポンプにより加圧された洗浄液の大部分もしくは全量が、前記した洗浄液貯留タンク内に戻されることになる。すなわち、洗浄液は前記した余水路の配管を介して高圧ポンプと洗浄液貯留タンクとの間を循環することになる。 Therefore, during the operation of the cleaning liquid delivery unit described above, when the cleaning liquid is discharged from a small number of injection nozzles, or when the cleaning liquid is not discharged from any of the injection nozzles, the pressure of the cleaning liquid pressurized by the high pressure pump Most or all of the solution is returned to the above-described cleaning solution storage tank. That is, the cleaning liquid circulates between the high pressure pump and the cleaning liquid storage tank through the above-mentioned spillway piping.
　この場合、前記洗浄液は高圧ポンプ内を通過するに際し、圧縮により高圧のエネルギーを受けることになるため、その温度が上昇する。この温度上昇した洗浄液が前記した噴射ノズルより常に吐出されていれば問題は生じないものの、前記したように余水路の配管を介して高圧ポンプから洗浄液貯留タンク内に戻る洗浄液の量が多くなると、洗浄液貯留タンク内の洗浄液の温度が蓄熱されて上昇する。 In this case, when the cleaning liquid passes through the inside of the high pressure pump, its temperature rises because it receives high pressure energy by compression. There is no problem if the temperature-increased cleaning liquid is always discharged from the above-mentioned injection nozzle, but as described above, when the amount of cleaning liquid returned from the high pressure pump into the cleaning liquid storage tank via the spillway piping increases, The temperature of the cleaning solution in the cleaning solution storage tank is stored and raised.
　このように洗浄液の温度が上昇した場合には、洗浄作業中に作業員が不用意に洗浄液を受けて火傷を負うなどの危険な問題も招来される。また、前記したように除菌および消臭効果を高めるために例えば次亜塩素酸ソーダや塩酸などの薬液を水道水に添加して洗浄液として利用する場合には、洗浄液の温度が上昇するにしたがって、塩素ガス等が発生度合いが増加し、作業環境を悪化させるなどの問題も招来される。 When the temperature of the cleaning solution rises in this manner, a dangerous problem such as an operator receiving the cleaning solution carelessly during the cleaning operation and being burned may be brought about. Also, as described above, in order to enhance the microbicidal and deodorizing effects, for example, when a chemical solution such as sodium hypochlorite or hydrochloric acid is added to tap water and used as a cleaning liquid, the temperature of the cleaning liquid increases as it increases. Also, the degree of generation of chlorine gas and the like increases, which causes problems such as deterioration of working environment.
　この発明は、前記した問題点に着目してなされたものであり、洗浄液を高圧ポンプによって送出するようになされた洗浄液送出ユニットにおいて、噴射ノズルからの洗浄液の吐出量にかかわらず、前記した余水路の配管を介して洗浄液貯留タンクに戻る洗浄液の量を極力少なくする制御手段を採用することで、洗浄液貯留タンク内の洗浄液の温度上昇を抑制することができる洗浄液供給装置を提供することを課題とするものである。 The present invention has been made focusing on the above-mentioned problems, and in the cleaning liquid delivery unit adapted to deliver the cleaning liquid by a high pressure pump, the above-mentioned spillway, regardless of the discharge amount of the cleaning liquid from the injection nozzle. It is an object of the present invention to provide a cleaning liquid supply apparatus capable of suppressing the temperature rise of the cleaning liquid in the cleaning liquid storage tank by adopting control means for minimizing the amount of the cleaning liquid returned to the cleaning liquid storage tank through the piping. It is
　また、この発明は前記した作用効果に加え、洗浄水に薬液を添加することで洗浄液を生成する洗浄液生成ユニットにおいて、希釈混合タンクを利用することで薬液の添加量の正確な管理が保障され、薬液の濃度が安定した洗浄水を得ることができる洗浄液供給装置を提供することを課題とするものである。 Furthermore, in addition to the above-described effects and effects, in the cleaning liquid production unit that generates the cleaning liquid by adding the chemical liquid to the cleaning water, accurate management of the amount of chemical liquid added is ensured by using the dilution mixing tank. It is an object of the present invention to provide a cleaning liquid supply apparatus capable of obtaining cleaning water in which the concentration of a chemical solution is stable.
　前記した課題を解決するためになされたこの発明に係る洗浄液供給装置は、洗浄液を一時的に貯留する洗浄液貯留タンクと、当該洗浄液貯留タンク内からの洗浄液を高圧に加圧して送出する高圧ポンプと、前記高圧ポンプを回転駆動する内燃機関によるエンジンと、前記エンジンの回転数制御を実行するエンジンコントローラとを有し、前記高圧ポンプにより加圧された高圧洗浄液を吐出する吐出路と、前記高圧ポンプからの高圧洗浄液のうちの余水分を、前記洗浄液貯留タンク内に戻す余水路とが備えられた洗浄液供給装置であって、前記高圧ポンプから高圧洗浄液の吐出路に進む洗浄液の流量の大小に応じて、前記エンジンコントローラは、前記エンジンの回転数を上昇もしくは下降させる制御を実行することを特徴とする。 A cleaning solution supply apparatus according to the present invention, which has been made to solve the above-mentioned problems, comprises a cleaning solution storage tank for temporarily storing a cleaning solution, and a high pressure pump for pressurizing and delivering the cleaning solution from inside the cleaning solution storage tank. A discharge path for discharging a high-pressure cleaning liquid pressurized by the high-pressure pump, the engine having an internal-combustion engine that rotationally drives the high-pressure pump, and an engine controller that controls the number of revolutions of the engine; The residual water in the high-pressure cleaning fluid from the fluid is returned to the inside of the cleaning fluid storage tank, the cleaning fluid supply apparatus comprising: The engine controller executes control to increase or decrease the number of revolutions of the engine.
　この場合、洗浄水が導入されると共に、前記洗浄水に薬液を添加して混合することで洗浄液を生成する薬液希釈混合タンクが備えられ、前記薬液希釈混合タンクから、前記洗浄液貯留タンクに対して洗浄液が送られるように構成されていることが望ましい。 In this case, a washing liquid is introduced, and a chemical dilution and mixing tank for generating a washing solution by adding and mixing a chemical solution to the washing water is provided, and the chemical solution dilution and mixing tank is directed to the washing solution storage tank. It is desirable that the cleaning solution be sent.
　加えて、前記薬液希釈混合タンクには、当該混合タンク内における洗浄液のｐＨ値を測定するｐＨセンサーが配置され、当該ｐＨセンサーにより得られるｐＨ値に基づいて、前記薬液希釈混合タンク内に添加される前記薬液の添加量が制御されるように構成される。 In addition, a pH sensor for measuring the pH value of the cleaning liquid in the mixing tank is disposed in the chemical solution dilution and mixing tank, and is added into the chemical solution dilution and mixing tank based on the pH value obtained by the pH sensor. The amount of the chemical solution added is controlled.
　また好ましい実施の形態においては、前記洗浄液貯留タンク内の洗浄液の液量を検出するフロートセンサーと、当該フロートセンサーによる液量の検出情報に基づいて、前記薬液希釈混合タンク内に供給する洗浄水の量を制御する給水弁とが具備され、前記フロートセンサーによる液量の検出値が所定値に至った場合において、前記給水弁による前記薬液希釈混合タンク内への給水を停止させる制御が実行されるように構成される。 In a preferred embodiment, a float sensor for detecting the amount of cleaning liquid in the cleaning liquid storage tank and cleaning water to be supplied into the chemical solution dilution mixing tank based on detection information of the amount of liquid by the float sensor. A water supply valve for controlling the amount is provided, and when the detected value of the liquid amount by the float sensor reaches a predetermined value, control for stopping water supply into the chemical solution dilution mixing tank by the water supply valve is executed. Configured as.
　さらに好ましくは、前記洗浄液貯留タンク内の洗浄液の温度を測定する液温センサーが具備され、当該液温センサーにより所定値以上の液温上昇を検出した場合において、前記給水弁による前記薬液希釈混合タンク内への給水量を増加させて、前記洗浄液貯留タンク内の洗浄液をブロー水として排出できるように構成される。 More preferably, a liquid temperature sensor for measuring the temperature of the cleaning liquid in the cleaning liquid storage tank is provided, and the liquid chemical dilution mixing tank by the water supply valve is detected when the liquid temperature sensor detects an increase in liquid temperature above a predetermined value. By increasing the amount of water supplied to the inside, the cleaning liquid in the cleaning liquid storage tank can be discharged as blow water.
　この場合、前記フロートセンサーによる液量の検出情報に基づく前記給水弁による給水を停止させる制御に対して、前記液温センサーによる液温の検出情報に基づく前記給水弁による給水量を増加させる制御が優先して実行されるように構成される。 In this case, the control to stop the water supply by the water supply valve based on the detection information of the liquid amount by the float sensor, the control to increase the water supply amount by the water supply valve based on the detection information of the liquid temperature by the liquid temperature sensor Configured to be prioritized to run.
　この発明に係る洗浄液供給装置によると、高圧ポンプから高圧洗浄液の吐出路に進む洗浄液の流量の大小に応じて、高圧ポンプを回転駆動するエンジンの回転数を上昇もしくは下降させる制御を実行するように構成されているので、前記高圧ポンプから余水路を介して洗浄液貯留タンク内に戻す余水分の量を限り無く少なくすることができる。 According to the cleaning liquid supply apparatus according to the present invention, control is performed to increase or decrease the rotational speed of the engine that rotationally drives the high pressure pump according to the flow rate of the cleaning liquid advancing from the high pressure pump to the discharge path of the high pressure cleaning liquid. Since it is comprised, the quantity of the residual water returned to the inside of a washing | cleaning-liquid storage tank from the said high pressure pump via a spillway can be reduced as much as possible.
　これによれば、高圧ポンプ内で加圧され、液温が上昇した状態の余水分が洗浄液貯留タンク内に戻ることにより、前記貯留タンク内の洗浄液が温度上昇するのを効果的に抑えることができる。
　したがって、貯留タンク内の洗浄液の温度の上昇により、作業員に及ぼす危険な問題を解消することができ、また、例えば薬液が添加された洗浄液が温度上昇することによる塩素ガス等を発生するなどの問題も解消することができる。 According to this, it is possible to effectively suppress the temperature rise of the cleaning liquid in the storage tank by the residual water in the state where the liquid temperature is pressurized and pressurized in the high pressure pump and returned to the inside of the cleaning liquid storage tank. it can.
Therefore, by raising the temperature of the cleaning liquid in the storage tank, it is possible to solve the dangerous problem given to workers, and, for example, generate chlorine gas etc. due to the temperature rising of the cleaning liquid to which the chemical solution is added. The problem can also be solved.
　また、この発明に係る洗浄液供給装置によると、薬液希釈混合タンクが備えられ、この薬液希釈混合タンク内において例えば水道などからの洗浄水に薬液が添加されて洗浄液が生成され、この洗浄液が前記した洗浄液貯留タンクに送られるようになされる。
　そして、前記薬液希釈混合タンク内における洗浄液のｐＨ値を測定するｐＨセンサーが配置され、当該ｐＨセンサーにより得られるｐＨ値に基づいて、前記薬液希釈混合タンク内に添加される前記薬液の添加量が制御されるように作用する。したがって、薬液の添加量の正確な管理が保障され、薬液の濃度が安定した洗浄水を得ることが可能となる。 Further, according to the cleaning liquid supply apparatus according to the present invention, the chemical solution diluting and mixing tank is provided, and the chemical solution is added to the cleaning water from, for example, water or the like in this chemical solution diluting and mixing tank to generate the cleaning solution. It is sent to the cleaning solution storage tank.
And the pH sensor which measures the pH value of the washing solution in the medical fluid dilution mixing tank is arranged, and the addition amount of the medical fluid added in the medical fluid dilution mixing tank is based on the pH value obtained by the pH sensor concerned. Act to be controlled. Therefore, accurate management of the addition amount of the chemical solution is ensured, and it becomes possible to obtain cleaning water having a stable concentration of the chemical solution.
　さらに、前記した洗浄液貯留タンク内の洗浄液の液量を検出するフロートセンサーと、洗浄液の温度を測定する液温センサーとが具備され、前記フロートセンサーを利用して、前記洗浄液貯留タンク内に注入される洗浄液の液面が管理される。これにより、適切な節水効果を果たすことができる。 Furthermore, a float sensor for detecting the amount of the cleaning liquid in the cleaning liquid storage tank and a liquid temperature sensor for measuring the temperature of the cleaning liquid are provided, and the solution is injected into the cleaning liquid storage tank using the float sensor. Control the level of the cleaning solution. This can achieve an appropriate water saving effect.
　また、前記液温センサーは、洗浄液貯留タンク内の洗浄液の温度を監視し、洗浄液が所定以上に昇温した時に、前記した水道などからの洗浄水の注入量を増加させて洗浄液貯留タンク内の洗浄液をブロー水として積極的に排出できるよう作用する。この動作により、洗浄液貯留タンク内の洗浄液の温度を確実に低下させることが可能となり、前記した高圧ポンプを駆動するエンジンの回転数制御により貯留タンク内の洗浄液の温度管理が不調な場合においても、前記したブロー水の排出動作により安全性を確保することができる。 Further, the liquid temperature sensor monitors the temperature of the cleaning liquid in the cleaning liquid storage tank, and when the temperature of the cleaning liquid rises above a predetermined level, the injection amount of the cleaning water from the water supply etc. is increased to increase the amount in the cleaning liquid storage tank. It acts so that the cleaning fluid can be positively discharged as blow water. This operation makes it possible to reliably lower the temperature of the cleaning liquid in the cleaning liquid storage tank, and even when the temperature control of the cleaning liquid in the storage tank is not good due to the rotation speed control of the engine that drives the high pressure pump described above. The above-described blow water discharge operation can ensure safety.
この発明に係る洗浄液供給装置において、主に洗浄液生成ユニットの構成を示した模式図である。The washing | cleaning-liquid supply apparatus which concerns on this invention WHEREIN: It is the schematic diagram which showed the structure of the washing | cleaning-liquid production | generation unit mainly. 同じく洗浄液供給装置において、主に洗浄液送出ユニットの構成を示した模式図である。FIG. 7 is a schematic view mainly showing the configuration of a cleaning solution delivery unit in the cleaning solution supply device of the same. この発明に係る洗浄液供給装置を収容した筐体を車輛に搭載した例を示す側面図である。It is a side view which shows the example which mounted the housing | casing which accommodated the washing | cleaning-liquid supply apparatus which concerns on this invention in the vehicle. 同じく筐体を車輛の後ろ側から見た状態の背面図である。It is a rear view of the state which looked similarly the housing | casing from the back side of the vehicle. 車輛に載置された筐体を上面から見た状態の透視図である。It is a perspective view of the state where the case laid in the car was seen from the upper surface. 同じく筐体を背面から見た状態の透視図である。It is a perspective view of the state which looked at a case from the back similarly.
　以下、この発明にかかる洗浄液供給装置について、図に示す実施の形態に基づいて説明する。この洗浄液供給装置は大別して図１に示す洗浄液生成ユニットＵ１と、図２に示す洗浄液送出ユニットＵ２とにより構成されており、図１および図２において、符号Ｔ２で示す洗浄液貯留タンクが共通に図示されている。
　すなわち、洗浄液貯留タンクＴ２よりも上流側が洗浄液生成ユニットＵ１を構成しており、洗浄液貯留タンクＴ２よりも下流側が洗浄液送出ユニットＵ２を構成している。 Hereinafter, a cleaning liquid supply apparatus according to the present invention will be described based on an embodiment shown in the drawings. This cleaning solution supply apparatus is roughly divided into a cleaning solution generation unit U1 shown in FIG. 1 and a cleaning solution delivery unit U2 shown in FIG. 2. In FIGS. 1 and 2, the cleaning solution storage tank shown by reference numeral T2 is illustrated in common. It is done.
That is, the upstream side of the cleaning liquid storage tank T2 constitutes the cleaning liquid generation unit U1, and the downstream side of the cleaning liquid storage tank T2 constitutes the cleaning liquid delivery unit U2.
　図１に示す洗浄液生成ユニットは、例えば水道から供給される洗浄水に薬液を添加して洗浄液を生成し、この洗浄液を前記した洗浄液貯留タンクＵ２に送る機能を果たすものである。
　図１において符号１は操作レバーを備えた水道栓を示し、洗浄液供給装置が稼働中においては、前記水道栓１は開放状態になされる。この水道栓１にはモーター等のアクチュエータによって開閉制御される電磁弁２が接続されており、この電磁弁２の下流側には流量センサー３が接続されている。この流量センサー３には操作レバーを備えた水量調節バルブ４が接続され、当該水量調節バルブ４を経た水道からの洗浄水は、薬液希釈混合タンクＴ１に供給されるように構成されている。 The cleaning liquid generation unit shown in FIG. 1 has a function of generating a cleaning liquid by adding a chemical solution to cleaning water supplied from, for example, a tap water, and sending the cleaning liquid to the cleaning liquid storage tank U2.
In FIG. 1, the code | symbol 1 shows the tap provided with the control lever, and said tap 1 is made into an open state, while the washing | cleaning-liquid supply apparatus is working. The water tap 1 is connected to a solenoid valve 2 which is controlled to open and close by an actuator such as a motor. A flow sensor 3 is connected to the downstream side of the solenoid valve 2. A water amount adjustment valve 4 having an operation lever is connected to the flow rate sensor 3, and flush water from the tap water passing through the water amount adjustment valve 4 is configured to be supplied to the chemical solution dilution mixing tank T1.
　一方、洗浄液生成ユニットＵ１には、前記薬液希釈混合タンクＴ１に供給された洗浄水に対して添加されて希釈される薬液の貯留タンク６，７が配置されている。　この薬液貯留タンク６，７には、一例として次亜塩素酸ソーダおよび塩酸がそれぞれ貯留されており、当該貯留タンク６，７に貯留された前記各薬液は、薬液送出ポンプ８，９の駆動により前記薬液希釈混合タンクＴ１内に添加され、前記水道から供給される洗浄水によって希釈されて洗浄液として生成される。
　そして、この薬液希釈混合タンクＴ１内において生成された洗浄液は、前記した洗浄液貯留タンクＴ２に対して送られるように構成されている。 On the other hand, in the cleaning liquid production unit U1, storage tanks 6 and 7 of the chemical liquid to be added and diluted with the cleaning water supplied to the chemical liquid dilution mixing tank T1 are disposed. Sodium hypochlorite and hydrochloric acid are respectively stored in the chemical solution storage tanks 6, 7 as an example, and the respective chemical solutions stored in the storage tanks 6, 7 are driven by the chemical solution delivery pumps 8, 9 It is added into the chemical solution dilution / mixture tank T1, and is diluted by the wash water supplied from the water supply to produce a wash solution.
The cleaning liquid generated in the chemical solution dilution and mixing tank T1 is sent to the cleaning liquid storage tank T2.
　前記薬液希釈混合タンクＴ１には、ｐＨセンサー１１が配置されており、このｐＨセンサー１１によって、薬液希釈混合タンクＴ１内における洗浄液のｐＨ値が測定される。
　この実施の形態においては、混合タンクＴ１内における洗浄液のｐＨ値は６．５となるように管理される。すなわち、前記ｐＨセンサー１１による測定値はｐＨコントローラ１２に伝送され、このｐＨコントローラ１２よりリレー装置１３に対して制御信号が伝送されるように構成されている。 A pH sensor 11 is disposed in the chemical solution dilution / mixture tank T1, and the pH sensor 11 measures the pH value of the cleaning liquid in the chemical solution dilution / mixture tank T1.
In this embodiment, the pH value of the cleaning liquid in the mixing tank T1 is controlled to be 6.5. That is, the value measured by the pH sensor 11 is transmitted to the pH controller 12, and the pH controller 12 is configured to transmit a control signal to the relay device 13.
　前記リレー装置１３には、前記した流量センサー３からの流量検出信号も供給されるように構成されており、前記リレー装置１３は、前記ｐＨコントローラ１２からの制御信号および流量センサー３からの流量検出信号受けて、前記薬液送出ポンプ８，９のそれぞれに対応して配備されたポンプ駆動電源１４，１５からの駆動電流をオンまたはオフ制御する。 The relay device 13 is also configured to be supplied with a flow rate detection signal from the flow rate sensor 3 described above, and the relay device 13 detects a control signal from the pH controller 12 and a flow rate detection from the flow rate sensor 3 In response to the signal, the drive current from the pump drive power supplies 14 and 15 provided corresponding to the respective chemical solution delivery pumps 8 and 9 is turned on or off.
　これにより前記薬液送出ポンプ８，９はそれぞれ個別にかつ間欠的に動作して、薬液貯留タンク６，７にそれぞれ貯留された薬液は、前記薬液希釈混合タンクＴ１内に適宜添加される。これにより、前記タンクＴ１内の洗浄液のｐＨ値が前記管理された値となるように調整される。
　したがって、前記薬液希釈混合タンクＴ１から洗浄液貯留タンクＴ２に移される洗浄液は、ｐＨ値の正確な管理が保障され、薬液の濃度が安定した洗浄水として送られることになる。 As a result, the chemical solution delivery pumps 8 and 9 operate individually and intermittently, and the chemical solutions respectively stored in the chemical solution storage tanks 6 and 7 are appropriately added into the chemical solution dilution mixing tank T1. Thus, the pH value of the cleaning liquid in the tank T1 is adjusted to the controlled value.
Therefore, the cleaning liquid transferred from the chemical dilution / mixture tank T1 to the cleaning liquid storage tank T2 is sent as cleaning water in which accurate control of the pH value is ensured and the concentration of the chemical liquid is stable.
　前記洗浄液貯留タンクＴ２には、当該洗浄液貯留タンクＴ２内の洗浄液の液量を検出するフロートセンサー１７が配置されている。このフロートセンサー１７は、洗浄液貯留タンクＴ２に貯留された洗浄液が満タンもしくはこれに近い状態となった時に、節水コントローラ１９に検知信号を送るように動作する。
　前記フロートセンサー１７から検知信号を受ける節水コントローラ１９は、給水弁としての前記した電磁弁２に制御信号を送り、電磁弁２を閉塞して前記薬液希釈混合タンクＴ１内への給水を停止させる制御を実行する。 In the cleaning solution storage tank T2, a float sensor 17 for detecting the amount of cleaning solution in the cleaning solution storage tank T2 is disposed. The float sensor 17 operates to send a detection signal to the water saving controller 19 when the cleaning liquid stored in the cleaning liquid storage tank T2 is full or nearly full.
A water saving controller 19 receiving a detection signal from the float sensor 17 sends a control signal to the solenoid valve 2 as a water supply valve to close the solenoid valve 2 and stop the water supply into the chemical solution dilution mixing tank T1. Run.
　これにより、薬液希釈混合タンクＴ１から洗浄液貯留タンクＴ２への洗浄液の供給が停止される。すなわち、前記フロートセンサー１７および節水コントローラ１９は、洗浄液貯留タンクＴ２に貯留される洗浄液の量を適正に管理し、薬液希釈混合タンクＴ１に供給される水道からの洗浄水を節水することに寄与できる。 Thus, the supply of the cleaning liquid from the chemical solution dilution mixing tank T1 to the cleaning liquid storage tank T2 is stopped. That is, the float sensor 17 and the water saving controller 19 appropriately manage the amount of the cleaning liquid stored in the cleaning liquid storage tank T2 and can contribute to saving the cleaning water from the water supplied to the chemical solution dilution mixing tank T1. .
　前記洗浄液貯留タンクＴ２には、当該洗浄液貯留タンクＴ２内の洗浄液の温度を測定する液温センサー１８がさらに備えられ、この液温センサー１８による測定値は、前記した節水コントローラ１９に送られるように構成されている。
　すなわち、前記液温センサー１８が所定値以上の液温の上昇を検知した場合においては、前記節水コントローラ１９は、給水弁としての前記した電磁弁２に制御信号を送り、電磁弁２を開放して前記薬液希釈混合タンクＴ１内への給水量を増加させる制御を実行する。 The cleaning liquid storage tank T2 further includes a liquid temperature sensor 18 for measuring the temperature of the cleaning liquid in the cleaning liquid storage tank T2, and the measured value by the liquid temperature sensor 18 is sent to the water saving controller 19 described above. It is configured.
That is, when the liquid temperature sensor 18 detects an increase in the liquid temperature above a predetermined value, the water saving controller 19 sends a control signal to the solenoid valve 2 as a water supply valve to open the solenoid valve 2. The control for increasing the amount of water supplied into the chemical solution dilution mixing tank T1 is executed.
　これにより、薬液希釈混合タンクＴ１から洗浄液貯留タンクＴ２に送られる洗浄液の量が増加し、洗浄液貯留タンクＴ２内の洗浄液はブロー水２０として排出される。したがって、洗浄液貯留タンクＴ２内の洗浄液の温度は低下し、前記液温センサー１８が所定値までの温度低下を検知することにより、給水弁としての前記電磁弁２を閉塞または通水量を絞る制御がなされる。 As a result, the amount of the cleaning liquid sent from the chemical solution dilution mixing tank T1 to the cleaning liquid storage tank T2 increases, and the cleaning liquid in the cleaning liquid storage tank T2 is discharged as the blow water 20. Therefore, the temperature of the cleaning liquid in the cleaning liquid storage tank T2 is lowered, and the liquid temperature sensor 18 detects a temperature drop to a predetermined value to control to squeeze the solenoid valve 2 as a water supply valve or to squeeze the flow rate. Is done.
　なお、洗浄液貯留タンクＴ２内の洗浄液の温度上昇は、後述する洗浄液送出ユニットＵ２において、高圧ポンプにより昇温された洗浄液が余水路を介して多量に洗浄液貯留タンクＴ２内に戻ることに起因するものである。
　後述する洗浄液送出ユニットＵ２においては、前記した洗浄液貯留タンクＴ２内の洗浄液の温度上昇を抑える手段が施されているが、洗浄液貯留タンクＴ２内の洗浄液をブロー水２０として排出することで、洗浄液の温度上昇を抑える手段は非常手段として利用される。 The increase in the temperature of the cleaning liquid in the cleaning liquid storage tank T2 is caused by the large amount of cleaning liquid heated by the high-pressure pump in the cleaning liquid delivery unit U2 described later returning into the cleaning liquid storage tank T2 through the spillway. It is.
Although the means for suppressing the temperature rise of the cleaning liquid in the cleaning liquid storage tank T2 is provided in the cleaning liquid delivery unit U2 described later, the cleaning liquid in the cleaning liquid storage tank T2 is discharged as the blow water 20. Measures to suppress temperature rise are used as emergency measures.
　なお、前記フロートセンサー１７による液量の検出情報に基づく前記給水弁（電磁弁２）による給水を停止させる制御に対して、前記液温センサー１８による液温上昇の検出に基づく前記給水弁（電磁弁２）の開放により給水量を増加させる制御が優先して実行されるように構成されている。 In addition to the control to stop the water supply by the water supply valve (electromagnetic valve 2) based on the detection information of the liquid amount by the float sensor 17, the water supply valve (electromagnetic based on the detection of the liquid temperature rise by the liquid temperature sensor 18 The control to increase the water supply amount is preferentially executed by opening the valve 2).
　次に図２に示す洗浄液送出ユニットＵ２は、前記した洗浄液貯留タンクＴ２内の洗浄液を高圧ポンプを利用して高圧に加圧して送出する機能を果たすものである。　図２において符号２２は、前記した高圧ポンプを示しており、この高圧ポンプ２２は、例えばディーゼルエンジンなどの内燃機関によるエンジン２３の回転駆動力を受けて駆動される。 Next, the cleaning liquid delivery unit U2 shown in FIG. 2 has a function of pressurizing and delivering the cleaning liquid in the cleaning liquid storage tank T2 to a high pressure using a high pressure pump. In FIG. 2, reference numeral 22 denotes the above-mentioned high pressure pump, which is driven by receiving rotational driving force of the engine 23 by an internal combustion engine such as a diesel engine.
　この高圧ポンプ２２には、前記した洗浄液貯留タンクＴ２内の洗浄液を吸入する吸入路２２ａと、高圧ポンプ２２により加圧された高圧洗浄液を吐出する吐出路２２ｂと、高圧ポンプ２２からの高圧洗浄液のうちの余水分を、前記洗浄液貯留タンクＴ２内に戻す余水路２２ｃとが備えられている。 The high pressure pump 22 includes a suction passage 22a for suctioning the cleaning fluid in the cleaning fluid storage tank T2, a discharge passage 22b for discharging the high pressure cleaning fluid pressurized by the high pressure pump 22, and a high pressure cleaning fluid from the high pressure pump 22. A residual water channel 22c is provided to return the residual water of the water into the cleaning liquid storage tank T2.
　前記高圧ポンプ２２には、高圧ポンプ２２内の加圧力を測定する圧力センサー２４が備えられ、前記エンジン２３には、当該エンジン２３の回転数を測定する回転センサー２５が備えられている。
　そして、前記圧力センサー２４および回転センサー２５の出力信号は、エンジンコントローラ２７に供給されるように構成されている。 The high pressure pump 22 is provided with a pressure sensor 24 for measuring the pressurizing force in the high pressure pump 22, and the engine 23 is provided with a rotation sensor 25 for measuring the number of revolutions of the engine 23.
The output signals of the pressure sensor 24 and the rotation sensor 25 are configured to be supplied to an engine controller 27.
　一方、前記高圧ポンプ２２における高圧洗浄液を吐出する吐出路２２ｂには、フロースイッチ２８が配置され、このフロースイッチ２８を介して操作レバーを備えた吐出バルブ２９が接続されている。そして前記吐出バルブ２９には、屈曲可能なホースを介して洗浄液の噴射ノズル（図示せず）が接続される。
　前記フロースイッチ２８は、前記吐出路２２ｂに洗浄液が流れているか否かを検出する機能を備え、その情報は前記したエンジンコントローラ２７に供給されるように構成されている。 On the other hand, a flow switch 28 is disposed in a discharge passage 22 b for discharging the high-pressure cleaning liquid in the high-pressure pump 22, and a discharge valve 29 provided with an operation lever is connected via the flow switch 28. The discharge valve 29 is connected to a spray nozzle (not shown) for washing liquid through a bendable hose.
The flow switch 28 has a function of detecting whether or not the cleaning fluid is flowing through the discharge passage 22b, and the information is supplied to the engine controller 27 described above.
　なお、図２においてはフロースイッチ２８に対して、１つの吐出バルブ２９が接続された状態が示されているが、洗浄液の噴射ノズルを複数本用いる場合には、前記フロースイッチ２８の後に、それぞれの噴射ノズルに対応した吐出バルブ２９が並列状態に接続されることになる。 Although FIG. 2 shows a state in which one discharge valve 29 is connected to the flow switch 28, in the case where a plurality of cleaning nozzles are used, the flow switch 28 may be used after the flow switch 28. The discharge valve 29 corresponding to the injection | spray nozzle of this is connected in parallel.
　また、前記高圧ポンプ２２からの高圧洗浄液のうちの余水分を、前記洗浄液貯留タンクＴ２内に戻す余水路２２ｃには、モーター等のアクチュエータによって開閉制御される電磁弁３１が接続され、この電磁弁３１と並列に調圧弁３２が接続されている。 A solenoid valve 31 controlled by an actuator such as a motor is connected to the spillway 22c for returning residual water in the high-pressure cleaning fluid from the high-pressure pump 22 back into the cleaning fluid storage tank T2. A pressure regulating valve 32 is connected in parallel with 31.
　前記エンジンコントローラ２７には、前記したとおり圧力センサー２４、回転センサー２５、フロースイッチ２８からの検知情報が供給されるように構成されており、このエンジンコントローラ２７は、前記エンジン２３に付設されてエンジン２３の回転数を制御するスロットル制御部３３に対して制御信号を供給するように構成されている。またエンジンコントローラ２７は、前記余水路２２ｃに配置された電磁弁３１に対しても制御信号を供給するようになされる。 As described above, the engine controller 27 is configured to be supplied with detection information from the pressure sensor 24, the rotation sensor 25, and the flow switch 28. The engine controller 27 is attached to the engine 23 to be an engine A control signal is supplied to a throttle control unit 33 that controls the rotational speed of the engine. The engine controller 27 also supplies a control signal to the solenoid valve 31 disposed in the spillway 22c.
　以上の構成を備えた図２に示す洗浄液送出ユニットＵ２においては、高圧洗浄液の吐出路２２ｂに配置された前記フロースイッチ２８からの検出情報、すなわち吐出路２２ｂにおける洗浄液の流れの有無についての情報がエンジンコントローラ２７に供給される。
　前記吐出路２２ｂにおいて洗浄液の流れがない場合は、高圧洗浄液が利用されていない状態であり、この場合には前記エンジンコントローラ２７は、スロットル制御部３３に対して、前記エンジン２３がアイドリング状態となるように制御する信号を送出する。 In the cleaning liquid delivery unit U2 shown in FIG. 2 having the above configuration, the detection information from the flow switch 28 disposed in the discharge path 22b of the high pressure cleaning liquid, that is, the information on the presence or absence of the flow of the cleaning liquid in the ejection path 22b The engine controller 27 is supplied.
When there is no flow of the cleaning fluid in the discharge path 22b, the high pressure cleaning fluid is not used, and in this case, the engine controller 27 causes the engine 23 to idle relative to the throttle control unit 33. Send out a control signal.
　同時に前記エンジンコントローラ２７より、前記電磁弁３１に対して開弁状態に制御する信号を送出する。したがって、余水路２２ｃを介して洗浄液貯留タンクＴ２に戻る洗浄液には、高圧ポンプ２２による圧力は加わらず、貯留タンクＴ２に戻る洗浄液の液温は上昇しない。 At the same time, the engine controller 27 sends a signal for controlling the valve opening state to the solenoid valve 31. Therefore, the pressure from the high-pressure pump 22 is not applied to the cleaning liquid returned to the cleaning liquid storage tank T2 via the spillway 22c, and the liquid temperature of the cleaning liquid returned to the storage tank T2 does not rise.
　一方、高圧洗浄液が利用され、前記フロースイッチ２８が吐出路２２ｂにおける洗浄液の流れを検知した場合には、前記エンジンコントローラ２７はスロットル制御部３３に対して、前記エンジン２３の回転を上昇させる指令信号を送出する。
　この場合、洗浄液の吐出圧力が前記エンジンコントローラ２７において手動で設定することができ、手動で設定された例えば２０ＭＰａの洗浄液の吐出圧力となるように、エンジン２３の回転数が制御される。 On the other hand, when the high-pressure cleaning fluid is used and the flow switch 28 detects the flow of the cleaning fluid in the discharge passage 22b, the engine controller 27 instructs the throttle control unit 33 to increase the rotation of the engine 23. Send out
In this case, the discharge pressure of the cleaning liquid can be manually set by the engine controller 27, and the number of rotations of the engine 23 is controlled so that the discharge pressure of the cleaning liquid set manually, for example, 20 MPa.
　これは、前記高圧ポンプ２２に備えられた圧力センサー２４からの圧力情報が、前記エンジンコントローラ２７にフィードバックされることで、設定された前記吐出圧力となるようにエンジン２３の回転数制御が行われる。
　同時に前記エンジンコントローラ２７より、前記電磁弁３１に対して、これを閉弁状態に制御する信号が送出され、前記高圧ポンプ２２からの余水分は、調圧弁３２および余水路２２ｃを介して、前記貯留タンクＴ２内に戻されることになる。 The rotational speed control of the engine 23 is performed such that pressure information from the pressure sensor 24 provided in the high-pressure pump 22 is fed back to the engine controller 27 to achieve the set discharge pressure. .
At the same time, the engine controller 27 sends a signal to control the solenoid valve 31 to close it, and the residual water from the high-pressure pump 22 is sent to the solenoid valve 31 via the pressure regulator valve 32 and the spillway 22c. It will be returned into the storage tank T2.
　ここで、洗浄作業に利用される高圧水噴射ノズルの利用数が、例えば増加した場合には、前記吐出路２２ｂにおける洗浄液の流量が増加し、前記高圧ポンプ２２に備えられた圧力センサー２４による圧力計測値は低下することになる。
　前記圧力センサー２４による圧力計測値の低下は、前記したとおりエンジンコントローラ２７にフィードバックされ、洗浄液の吐出圧力が予め設定された値となるように前記エンジン２３の回転数を上昇させる制御が実行される。 Here, when the number of high-pressure water injection nozzles used for the cleaning operation increases, for example, the flow rate of the cleaning liquid in the discharge passage 22b increases, and the pressure by the pressure sensor 24 provided in the high-pressure pump 22 increases. The measured value will decrease.
The decrease in the pressure measurement value by the pressure sensor 24 is fed back to the engine controller 27 as described above, and control is performed to increase the rotational speed of the engine 23 so that the discharge pressure of the cleaning liquid becomes a preset value. .
　また、前記とは逆に高圧水噴射ノズルの利用数が、少なくなった場合には、前記高圧ポンプ２２に備えられた圧力センサー２４による圧力計測値は上昇することになり、この圧力計測値はエンジンコントローラ２７にフィードバックされ、洗浄液の吐出圧力が予め設定された値となるように前記エンジン２３の回転数を下降させる制御が実行される。 Also, contrary to the above, when the number of high-pressure water injection nozzles used decreases, the pressure measurement value by the pressure sensor 24 provided in the high-pressure pump 22 is increased, and this pressure measurement value is Control is performed to reduce the number of revolutions of the engine 23 so that the discharge pressure of the cleaning liquid becomes a preset value by being fed back to the engine controller 27.
　なお、前記エンジン２３に備えられた回転センサー２５の出力信号は、前記したとおりエンジンコントローラ２７に供給される。これは幾つかの要因により、前記エンジン２３が例えば設定されたアイドリング状態よりも低下する状態に至った場合には、前記スロットル制御部３３にアイドリング状態を保つ制御信号を送るように作用する。 The output signal of the rotation sensor 25 provided in the engine 23 is supplied to the engine controller 27 as described above. This acts to send a control signal for maintaining the idling state to the throttle control unit 33 when the engine 23 becomes lower than the set idling state, for example, due to several factors.
　また、幾つかの要因により、前記エンジン２３が例えば設定された回転数以上に達する場合には、前記スロットル制御部３３にエンジン回転数を低下させる制御信号を送るように作用する。これにより、前記エンジン２３の回転数制御の安定性を保障することができる。 Also, when the engine 23 reaches, for example, a set rotational speed or more due to several factors, it acts to send a control signal to the throttle control unit 33 to reduce the engine rotational speed. Thereby, the stability of the rotational speed control of the engine 23 can be ensured.
　斯くして、前記したように高圧ポンプ２３から前記吐出路２２ｂに進む洗浄液の流量の大小を前記圧力センサー２４により検知し、この洗浄液の流量に応じて、前記エンジン２３の回転数を上昇もしくは下降させる制御を実行することで、高圧ポンプ２２から前記した余水路２２ｃを介して洗浄液貯留タンクＴ２に戻る洗浄液の量を限り無く少なく設定することが可能となる。 Thus, as described above, the pressure sensor 24 detects the magnitude of the flow rate of the cleaning liquid advancing from the high pressure pump 23 to the discharge path 22b, and the number of revolutions of the engine 23 is increased or decreased according to the flow rate of the cleaning liquid. By executing the control to be performed, it is possible to set the amount of the cleaning liquid returned from the high pressure pump 22 to the cleaning liquid storage tank T2 via the above-mentioned spillway 22c as small as possible.
　したがって、前記した洗浄液供給装置の構成によれば、高圧ポンプ２２により高圧のエネルギーを受けて蓄熱された洗浄液が、余水路２２ｃを介して洗浄液貯留タンクＴ２に戻る度合いを少なくさせることができるので、洗浄液貯留タンク内の洗浄液の温度上昇を抑制することができる。
　これにより、高圧水噴射ノズルを用いた作業の安全性を確保することができるなど、前記した発明の効果の欄に記載した独自の作用効果を得ることができる。 Therefore, according to the configuration of the cleaning liquid supply device described above, the degree to which the cleaning liquid stored in the high pressure pump 22 receives high-pressure energy and is stored can return to the cleaning liquid storage tank T2 via the spillway 22c can be reduced. It is possible to suppress the temperature rise of the cleaning liquid in the cleaning liquid storage tank.
As a result, it is possible to secure the safety of the operation using the high-pressure water injection nozzle, and to obtain the unique effects described in the column of the above-described effects of the invention.
　以上説明した洗浄液供給装置の実施の形態においては、薬液希釈混合タンクＴ１を備え、洗浄水に薬液を添加してなる洗浄液を利用するようにしているが、これは薬液を使用せずに水道などからの洗浄水をそのまま利用して、図２に示す洗浄液送出ユニットＵ２を利用して高圧洗浄液として吐出するように構成しても良い。
　このような構成においても、洗浄液貯留タンクＴ２内の洗浄液の温度上昇を効果的に抑制することができるという技術的な課題を達成することができる。 In the embodiment of the cleaning liquid supply apparatus described above, the chemical solution diluting and mixing tank T1 is provided, and the cleaning liquid formed by adding the chemical liquid to the cleaning water is used, but this does not use the chemical liquid. The washing water from the above may be used as it is, and may be discharged as a high-pressure washing liquid using the washing liquid delivery unit U2 shown in FIG.
Also with such a configuration, it is possible to achieve the technical problem that the temperature rise of the cleaning liquid in the cleaning liquid storage tank T2 can be effectively suppressed.
　図３および図４は、前記した洗浄液供給装置を搭載した車輛の一例を示したものである。この車輛４１の荷台部分には、ボックス型の筐体４２が搭載され、図１および図２に示す洗浄液供給装置が、この筐体４２内に収容されている。
　図３に示すように、前記車輛４１の荷台部分に搭載された筐体４２の左側面における前方には、水平方向に両開きとなるように軸支された扉４３が取り付けられ、その後方には水平方向に片開きとなるように軸支された扉４４が取り付けられている。また筐体４１の後側の面には、図４に示すように上部が軸支された跳ね上げ扉４５が取り付けられている。 FIG. 3 and FIG. 4 show an example of a vehicle equipped with the cleaning liquid supply device described above. A box-shaped casing 42 is mounted on the cargo bed portion of the vehicle 41, and the cleaning liquid supply device shown in FIGS. 1 and 2 is accommodated in the casing 42.
As shown in FIG. 3, a door 43 pivotally supported so as to be horizontally opened in the horizontal direction is attached to the front of the left side surface of the housing 42 mounted on the cargo bed portion of the vehicle 41. A door 44 pivotally supported so as to be open in the horizontal direction is attached. Further, as shown in FIG. 4, a flip-up door 45 whose upper portion is pivotally supported is attached to the rear surface of the housing 41.
　図５は、前記車輛４１の荷台に載置された筐体４２を上面から見た状態の透視図であり、図５における左側が前方（運転席側）となる。
　前記筐体４２は中央の隔壁４２ａによって前室と後室に分けられており、前室内の略中央部には前記したエンジン２３が搭載され、これに隣接して前記した高圧ポンプ２２が配置されている。前記前室の前方は、前記エンジン２３に付帯するラジエターなどが収容される排風スペース４６になされており、図には示されていないが、前記排風スペース４６が施された筐体４２の天板には、排気口などが設けられている。 FIG. 5 is a perspective view of the case 42 mounted on the bed of the vehicle 41 as viewed from the top, and the left side in FIG. 5 is the front (driver's seat side).
The housing 42 is divided into a front chamber and a rear chamber by a central partition wall 42a, and the above-described engine 23 is mounted substantially at the center of the front chamber, and the high pressure pump 22 is disposed adjacent thereto. ing. The front of the front chamber is an exhaust air space 46 in which a radiator attached to the engine 23 and the like is accommodated, and although not shown in the figure, the case 42 is provided with the exhaust air space 46. An exhaust port etc. are provided in the top plate.
　前記筐体４２の後室内には、前記した洗浄液貯留タンクＴ２が配置され、図６に示されているように、前記貯留タンクＴ２の上に、図１に示した洗浄液生成ユニットＵ１のほとんどの機能が搭載されている。
　また、洗浄液供給装置の操作盤４７が背面に向かって配置されており、この操作盤４７は、図４に示した扉４５を跳ね上げた状態で操作される。
　なお符号４８は、洗浄液供給装置と共に使用される機材等を収納するスペースになされている。 In the rear chamber of the housing 42, the cleaning solution storage tank T2 is disposed, and as shown in FIG. 6, most of the cleaning solution generation unit U1 shown in FIG. 1 is placed on the storage tank T2. It has features.
In addition, the operation panel 47 of the cleaning liquid supply device is disposed toward the back, and the operation panel 47 is operated in a state where the door 45 shown in FIG. 4 is flipped up.
The reference numeral 48 is a space for storing equipment used together with the cleaning liquid supply device.
　１　　　　　水道栓
　２　　　　　電磁弁（給水弁）
　３　　　　　流量センサー
　４　　　　　水量調節バルブ
　６，７　　　薬液貯留タンク
　８，９　　　薬液送出ポンプ
　１１　　　　ｐＨセンサー
　１２　　　　ｐＨコントローラ
　１３　　　　リレー装置
　１４，１５　ポンプ駆動電源
　１７　　　　フロートセンサー
　１８　　　　液温センサー
　１９　　　　節水コントローラ
　２０　　　　ブロー水
　２２　　　　高圧ポンプ
　２２ａ　　　吸入路
　２２ｂ　　　吐出路
　２２ｃ　　　余水路
　２３　　　　エンジン
　２４　　　　圧力センサー
　２５　　　　回転センサー
　２７　　　　エンジンコントローラ
　２８　　　　フロースイッチ
　２９　　　　吐出バルブ
　３１　　　　電磁弁
　３２　　　　調圧弁
　３３　　　　スロットル制御部
　Ｔ１　　　　薬液希釈混合タンク
　Ｔ２　　　　洗浄液貯留タンク
　Ｕ１　　　　洗浄液生成ユニット
　Ｕ２　　　　洗浄液送出ユニット 1 water tap 2 solenoid valve (water supply valve)
DESCRIPTION OF SYMBOLS 3 Flow rate sensor 4 Water volume adjustment valve 6, 7 Chemical liquid storage tank 8, 9 Chemical liquid delivery pump 11 pH sensor 12 pH controller 13 Relay device 14, 15 Pump drive power supply 17 Float sensor 18 Liquid temperature sensor 19 Water-saving controller 20 Blow water 22 High pressure pump 22a suction passage 22b discharge passage 22c excess water passage 23 engine 24 pressure sensor 25 rotation sensor 27 engine controller 28 flow switch 29 discharge valve 31 solenoid valve 32 pressure regulating valve 33 throttle control unit T1 chemical solution mixing tank T2 cleaning solution storage tank U1 cleaning solution generation unit U2 Cleaning solution delivery unit

Claims (6)

  1. 　洗浄液を一時的に貯留する洗浄液貯留タンクと、当該洗浄液貯留タンク内からの洗浄液を高圧に加圧して送出する高圧ポンプと、前記高圧ポンプを回転駆動する内燃機関によるエンジンと、前記エンジンの回転数制御を実行するエンジンコントローラとを有し、前記高圧ポンプにより加圧された高圧洗浄液を吐出する吐出路と、前記高圧ポンプからの高圧洗浄液のうちの余水分を、前記洗浄液貯留タンク内に戻す余水路とが備えられた洗浄液供給装置であって、
    　前記高圧ポンプから高圧洗浄液の吐出路に進む洗浄液の流量の大小に応じて、前記エンジンコントローラは、前記エンジンの回転数を上昇もしくは下降させる制御を実行することを特徴とする洗浄液供給装置。     A cleaning solution storage tank for temporarily storing the cleaning solution, a high pressure pump for pressurizing and delivering the cleaning solution from the cleaning solution storage tank to a high pressure, an engine by an internal combustion engine that rotationally drives the high pressure pump, and the number of rotations of the engine A discharge path for discharging a high-pressure cleaning fluid pressurized by the high-pressure pump, and an excess amount of the high-pressure cleaning fluid from the high-pressure pump; A cleaning liquid supply device provided with a water channel,
    The engine controller performs control to increase or decrease the number of revolutions of the engine according to the magnitude of the flow rate of the cleaning liquid advancing from the high pressure pump to the discharge path of the high pressure cleaning liquid.
  2. 　洗浄水が導入されると共に、前記洗浄水に薬液を添加して混合することで洗浄液を生成する薬液希釈混合タンクが備えられ、前記薬液希釈混合タンクから、前記洗浄液貯留タンクに対して洗浄液が送られるように構成したことを特徴とする請求項１に記載された洗浄液供給装置。 A chemical dilution and mixing tank is provided to generate a cleaning solution by introducing cleaning water and adding and mixing a chemical solution to the cleaning water, and the cleaning solution is sent from the chemical dilution and mixing tank to the cleaning solution storage tank. The cleaning liquid supply apparatus according to claim 1, wherein the cleaning liquid supply apparatus is configured to
  3. 　前記薬液希釈混合タンクには、当該混合タンク内における洗浄液のｐＨ値を測定するｐＨセンサーが配置され、当該ｐＨセンサーにより得られるｐＨ値に基づいて、前記薬液希釈混合タンク内に添加される前記薬液の添加量が制御されるように構成したことを特徴とする請求項２に記載された洗浄液供給装置。 The chemical solution dilution / mixture tank is provided with a pH sensor for measuring the pH value of the cleaning liquid in the mixing tank, and the chemical solution added to the chemical solution dilution / mixture tank based on the pH value obtained by the pH sensor 3. The cleaning liquid supply apparatus according to claim 2, wherein the addition amount of is controlled.
  4. 　前記洗浄液貯留タンク内の洗浄液の液量を検出するフロートセンサーと、当該フロートセンサーによる液量の検出情報に基づいて、前記薬液希釈混合タンク内に供給する洗浄水の量を制御する給水弁とが具備され、前記フロートセンサーによる液量の検出値が所定値に至った場合において、前記給水弁による前記薬液希釈混合タンク内への給水を停止させる制御が実行されるように構成したことを特徴とする請求項２または請求項３に記載された洗浄液供給装置。 A float sensor that detects the amount of cleaning liquid in the cleaning liquid storage tank, and a water supply valve that controls the amount of cleaning water supplied into the chemical solution dilution and mixing tank based on detection information of the amount of liquid by the float sensor; The system is characterized in that control is performed to stop the water supply to the inside of the chemical solution dilution mixing tank by the water supply valve when the detected value of the liquid amount by the float sensor reaches a predetermined value. The washing | cleaning-liquid supply apparatus described in Claim 2 or Claim 3.
  5. 　前記洗浄液貯留タンク内の洗浄液の温度を測定する液温センサーがさらに具備され、当該液温センサーにより所定値以上の液温上昇を検出した場合において、前記給水弁による前記薬液希釈混合タンク内への給水量を増加させて、前記洗浄液貯留タンク内の洗浄液をブロー水として排出できるように構成したことを特徴とする請求項４に記載された洗浄液供給装置。 A liquid temperature sensor for measuring the temperature of the cleaning liquid in the cleaning liquid storage tank is further provided, and when the liquid temperature sensor detects a liquid temperature rise equal to or more than a predetermined value, 5. A cleaning solution supply apparatus according to claim 4, wherein the amount of water supplied is increased to discharge the cleaning solution in the cleaning solution storage tank as blow water.
  6. 　前記フロートセンサーによる液量の検出情報に基づく前記給水弁による給水を停止させる制御に対して、前記液温センサーによる液温の検出情報に基づく前記給水弁による給水量を増加させる制御が優先して実行されるように構成したことを特徴とする請求項５に記載された洗浄液供給装置。
          In contrast to the control for stopping the water supply by the water supply valve based on the detection information of the liquid amount by the float sensor, the control for increasing the water supply amount by the water supply valve based on the detection information of the liquid temperature by the liquid temperature sensor has priority The cleaning solution supply device according to claim 5, characterized in that it is configured to be implemented.
PCT/JP2011/074269 2011-10-21 2011-10-21 Cleaning fluid supply device WO2013057827A1 (en)

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JP2012553131A JP5388151B2 (en) 2011-10-21 2011-10-21 Cleaning liquid supply device
CN201180023425.9A CN103221153B (en) 2011-10-21 2011-10-21 Cleaning fluid supply device
TW101138234A TWI468233B (en) 2011-10-21 2012-10-17 Cleaning solution supply device
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