JP2007309910A - Internal jamming inspection apparatus of radiator, and sludge removal technique therewith - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To inspect jamming, without having to apply excessive pressure to test object. <P>SOLUTION: Compressed air is passed, while avoiding excessive pressure applied to test objects, such as radiator through vent holes, an excretory pore of the radiator is blocked by finger and the like, while measuring pressure generating at the upstream side of jammed part of a radiator, and then the blocked area of excretory pore is detected short of pressure variation concerned, by sensing the pressure variation of upstream side with a negative pressure or positive pressure, to inspect ballpark jamming condition of channel between upstream side and downstream side of the inner core of radiator by the blocked area concerned. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is provided in the middle of a fluid flow path, and is generated upstream of a portion where a radiator is clogged while allowing compressed air to pass while preventing an excessive pressure from being applied to an object to be inspected. While measuring the pressure, close the discharge outlet of the radiator because it is a finger, sense the upstream pressure change, know the discharge port blocking area before the pressure change, and at the blocking area upstream and downstream of the internal core of the radiator It is an apparatus for inspecting the rough clogging state of the flow path, and relates to a method for removing sludge inside the radiator using the same.

  As an example of the background art, an inspection method for performing an internal clogging inspection of a radiator in an automobile maintenance shop will be exemplified. As shown in FIG. 1, a water supply hose (2) or an air gun is inserted into the radiator (1) inlet, and the water is closed with hand so that the compressed water of the tap water or the compressor does not leak. The degree of clogging was judged by looking at the strength of the radiator inlet pressure felt by the hand and the outlet flow rate (3). Moreover, the removal of internal sludge was such that it was washed out with tap water.

Problems to be solved by the inventor

However, a series of conventional inspection operations have the following problems.
(A) When tap water is used in the clogging inspection, the floor or the like gets wet. Therefore, if compressed air from a convenient compressor is sent with an air gun, the radiator may be destroyed by the compressed air.
(B) In the clogging inspection, the skill level of the operator is required to determine whether the clogging is good or not based on the radiator inlet pressure felt by the hand and the amount of ejection at the outlet.
(C) Since the radiator has a wide variety of capacities, when the compressed air is sent in, it is impossible to judge the degree of clogging because the pressure at the inlet of the radiator felt by the hand is different.
(D) In the clogging inspection, since the inlet diameters of the radiator are various, a variety of connection spacers are required to connect convenient compressed air to the radiator.
(E) Sludge removal inside the radiator did not have the effect of removing sludge accumulated inside even if tap water was allowed to flow from the radiator inlet to the outlet.
For the above reasons, the present invention has an object to provide a clogging measuring device inside a radiator that uses compressed water of a compressor, which is convenient for inspection of clogging, and has a low pressure load on an object to be inspected. Also, the present invention provides a method for removing sludge inside a radiator by using a spacer for connecting the device of the present invention to various hose diameters at the inlet of the radiator and the device of the present invention.

Means for solving the problem

  In order to solve the above-mentioned problem, as shown in the inclined view of FIG. 2, the clogging detection device (4) of the present invention device uses the compressed air of the compressor (5), which is more convenient than tap water, The compressor (5) on the side and the radiator (1) which is the downstream inspection object are interposed in the middle of the flow path, and the compressed air is passed through the radiator via the device (4) of the present invention. Sometimes, the pressure on the upstream side of the clogging generated by the clogging inside is measured, and the discharge outlet of the radiator is closed because it is a finger, and the pressure on the upstream side rises when the discharge outlet is closed beyond the clogging area. An apparatus for detecting a change and knowing an exhaust port blockage area before the change in pressure, and inspecting an approximate clogging state of a flow path on the upstream side and the downstream side of the radiator internal core with the blockage area, the change in the pressure Can be removed with a pressure gauge as a means of measuring And a whistle (20) and the transparent pipe (22) such.

  As shown in the slant view of FIG. 3 and the cross-sectional view of FIG. 4, a valve (14) for adjusting the flow rate sent from the compressor (5) to the upstream side of the air gun, and an air gun open / close valve (23) linked to the air gun lever (13) ) A vent hole (9) for pressure relief and pressure adjustment in the downstream part, a relay pipe (19) and a negative pressure generating pipe for attaching the pressure gauge (8) and sensor pipe (10) to the tip of the air gun (7) A pair of (12) is screwed in.

  In the first invention, in order to prevent an excessive pressure from being applied to the radiator, a through hole (9) is provided on the downstream side of the air gun opening / closing valve (23) as shown in the inclined view of FIG. 3 and the sectional view of FIG. Even if an excessively large pressure is applied to the downstream side radiator, the pressure is released and the compressed air to be passed through the radiator (1) is determined in advance as shown in the inclination diagram of FIG. Before checking for clogging, hold the air gun lever (13), open the air gun open / close valve (23) and close the compressor air released from the negative pressure generating pipe (12) with the rubber plate (25), and from the hole (9) The pressure can be solved by opening and closing the valve (14) while measuring the pressure of the discharged middle path (18) with a pressure gauge (8), and adjusting the pressure to a predetermined value. If there is little load or no load, Under reduced pressure in accordance with the principles of Jekuta, a structure for sucking the external fluid.

  The predetermined pressure value is a pressure at which the radiator is not destroyed, and is determined by the outlet hose diameter of the radiator.

  As shown in FIG. 8, the inspection of clogging of the heater (29) of a small radiator is performed because the outlet hose diameter of the radiator core (30) is small and the number of thin tubes (31) is small. Since the pressure generated by clogging with the tube pressure gauge (0 to 0.2 MPa) is within the measurable range, the mech lid is inserted into the sensor pipe and connected with the rubber tube (34) from the radiator inlet (32) and compressed air. When the air is passed through, the pressure at the inlet hose port increases due to the load caused by the clogging inside the radiator, and the pressure gauge (8) indication rises in proportion to the clogging area. The total (8) instruction is zero because it is only the internal weak load pressure of the radiator. In order to know the clogged area, the blower flow rate (3) at the outlet of the radiator is finger (35) so that the clogged area is the clogged area of the radiator flow path. . The clogged area is the increase in the pressure at the radiator inlet by closing the radiator outlet to know how much the amount of air flowing from the upstream side of the radiator to the downstream side is reduced and discharged. Although it is perceived and is different from the original clogging inside the radiator, it is possible to estimate the approximate clogging inside the radiator.

An example of an instruction of the pressure gauge (8) generated when the car heater is clogged is illustrated.
Although it differs depending on the individual case, it is about 90% at 0.02 MPa for light four-vehicles when it is almost half-packed, and 0.04 MPa when clogged.

Next, the second invention is different from the clogging inspection of the heater (29) in the clogging inspection of the small capacity radiator of the automobile mini vehicle, and the capacity of the radiator core (30) and the number of the thin tubes (31) are large. Therefore, even when compressed air is introduced by the air gun (7), the radiator inlet (32) is clogged except for a large amount, and the pressure at the radiator inlet (32) generated by the clogging is small and the bourdon of the device (4) of the present invention Since the tube pressure gauge (0 to 0.2 MPa) cannot be measured, the pressure is passed through the whistle (20) as the measuring means of the second radiator inlet (32) and released to the outside to sound the whistle (20). I devised a method to measure the pressure with the tone of the sound, but since the aluminum core of the latest aluminum radiator is narrow and has a lot of internal resistance, it is a sludge, so even if the radiator is not clogged, compressed air is released Just let it pass inside Since the pressure increases due to the internal resistance of the radiator inlet (32) and the whistle (20) sounds, in order to subtract the internal resistance pressure, as shown in FIG. The negative pressure generating pipe (12) is covered with a negative pressure generating pipe (12) and negative pressure is generated at the negative pressure generating place (16) by the ejector principle, and the pressure generated by the internal resistance is subtracted to suppress the discharge flow of the whistle. The length of the air gun discharge pipe (36) was adjusted so that it would not sound when there was no clogging. In order to know the clogging area in the same manner as described above, since the ejection flow rate (3) from the radiator outlet (33) is the finger (35), the clogging area is closed before the tone of the whistle (20) is changed. . In the same way as described above, in order to know how much the amount of air flowing from the upstream side of the radiator to the downstream side is reduced and discharged, the radiator outlet is closed and sensing is performed by increasing the pressure at the radiator inlet. Although it is different from the original clogging inside the radiator, it is possible to estimate the approximate clogging inside the radiator.

  In the case of a small radiator, such as the capacity of an automobile mini vehicle, by adding the whistle (20) and the negative pressure generating pipe (12), the length of the discharge pipe (36) of the device of the present invention is adjusted. Convenience can be increased by adjusting the whistle (20) to ring when compressed air is passed through the radiator when the clogging in the radiator (1) is about half or more.

Next, according to the third aspect of the present invention, in the case of clogging inspection of a radiator of an automobile small car or small truck, unlike the clogging inspection described above, the capacity of the radiator core (30) and the number of narrow tubes (31) are further increased. Even if air is allowed to pass through, the pressure in the heatsink inlet (32) generated by the clogging is not generated unless the heatsink inlet (32) is clogged, so the pressure in the sensor pipe (10) depends on the principle of the ejector. The resulting whistle (20) does not sound as a result of the negative pressure. As shown in FIG. 6, the negative pressure is filled with water with a cylindrical air vent with a pipe (22) that is more transparent than the sensor pipe. Since water is sucked into the container (24) and water is sucked up by the negative pressure to form a water column, the radiator discharge amount can be known at the water column position (28). The water column position (28) generates negative pressure. Discharge of tube (12) When there is no clogging inside the radiator (1), the position of the harmful water column is high, and when the radiator is clogged and the discharge flow rate at the radiator outlet is small, the position (28) of the water column is low. In order to know the clogging area in the same manner as described above, the blowout flow rate (3) from the radiator outlet (33) is closed by the finger (35), and the closed area before the water column position (28) is lowered is closed. become. In order to know how much the amount of air flowing from the upstream side of the radiator to the downstream side was reduced and discharged, the radiator outlet was closed and the negative pressure decreased as the pressure at the radiator inlet increased. Although the position of the water column (28) is sensed to be lowered and is different from the original clogging in the radiator, it is possible to estimate the approximate clogging inside the radiator.

  In addition, a radiator with a larger capacity than a heater, mini-car, small car, or small truck is monitored by a pressure gauge (8) according to the outlet diameter, with a valve (4) upstream. Increase the inflow from the side compressor.

  Next, as shown in the inclined view of FIG. 7, the fourth invention is a spacer for connecting the apparatus and the radiator hose port, and the flat connector rubber plug (11) is inserted into the negative pressure generating pipe (12). Although the right side (26) and the left side (27) can be replaced in reverse according to the hose diameter of the radiator, the left side (26) is plugged into the radiator radiator inlet (32) with a large diameter. The right side (26) can be used by covering the small radiator inlet (32), and the flat connector rubber plug (11) is inserted into the negative pressure generating pipe (12) as shown in FIG. A space is formed between the negative pressure generating pipe (12), and it is made of a soft material that can be inserted into a narrower hose port and is rich in shrinkage.

  In addition, since the apparatus of the present invention has a hole (9) even if water is present inside the radiator and the internal resistance increases, the apparatus of the present invention compresses the compressor while pouring tap water at a pressure that does not impose a burden on the radiator. The pressure can be used in combination with tap water to remove sludge inside the radiator, and the amount of compressed air in the compressor (5) can be increased or decreased with the valve (14) while monitoring the pressure gauge (8). Sludge can be removed effectively.

The invention's effect

  According to the radiator clogging pressure measuring device and the flat connector rubber plug (11) according to the present invention, the radiator internal cleaning flushing device using the same is easily compressed with the flat connector rubber plug (11). , And control the pressure with the hole (9), and can estimate the internal clogging area of the radiator while preventing excessive pressure from being applied to the downstream radiator. It can be easily combined with tap water at a pressure that does not impose a burden on the vessel, and the conventional expensive and fragile regulator is not required, improving portability, mobility and reliability, and reducing costs. Can be provided.

  2, FIG. 3, FIG. 5, FIG. 7 and FIG. 8 show a radiator internal clogging inspection device using a through hole (9) of a fluid pressure adjustment function as a first embodiment embodying the present invention. . 4 shows the actual state of the whistle (20) of the second measuring means, FIG. 5 shows the device of the transparent pipe (22) of the third measuring means, and FIG. 6 shows the apparatus of the present invention at the radiator inlet (32). ) Shows the actual state of the flat connector rubber plug (11) that can be easily connected.

  As shown in the cross-sectional view of FIG. 10, the apparatus of the present invention uses an air compressor as a high-pressure supply means and is interposed in the middle of the flow path of the high-pressure fluid. A valve (40) for controlling the flow rate on the upstream side of the air gun (7) having an air gun), and a pressure adjustment punch hole (9) between the open / close valve (8) of the air gun and the pressure gauge (10) The air gun has a pressure gauge (10) as a pressure measuring means, a negative pressure generating pipe (12), and a sensor pipe (10) connected to the negative pressure generating place (16) of the negative pressure generating pipe. A pair is screwed into the tip of the air gun, and a mecha lid (17) and a whistle (18) transparent pipe (22) for pressure measuring means are attached to the sensor pipe (10) and replaced.

Although it does not specifically limit as said middle path | route, The following aspect is illustrated.
(1) The aspect which provided the flow path which relays the said fluid inside a cylinder.
(2) The aspect which provided the flow path which relays the said fluid inside the main body formed in arbitrary shapes, such as a gun (gun).

  The middle path may be configured as a solid type that is fixed to a building, furniture, machine, or the like, or as a removable type that can be attached to and detached from the building, or a handheld type (for example, a handheld type). Possible rod type, gun type, etc.).

  The fluid is not particularly limited as long as it freely deforms or flows with respect to an external force, and examples thereof include gas such as air and gas, or liquid such as fresh water and seawater.

Although it does not specifically limit as a mode which can control the flow of the fluid in the punching hole, the following mode is illustrated.
(1) A mode in which the punched hole has an opening that can be directly opened and closed by hand.
(2) A mode in which the punched hole has an opening that can be directly opened and closed by hand. For example, manual opening and closing means configured to control the outflow of the fluid by holding it against the pressure of the fluid and releasing the fluid by releasing the hand is provided at the opening of the punched hole The embodiment is mentioned.

  The positions of the punch hole (9) and the pressure gauge (10) are not limited as long as they are downstream of the air gun open / close valve (8).

  The punched hole (9) has a structure in which the load on the downstream side is small, or when there is no load, the pressure is reduced by the ejector principle and the external fluid is sucked.

Here, a method for adjusting the pressure in the punched hole (9) before the inspection will be described.
As shown in the tilt diagram of FIG. 7, the air hose (37) of the compressor (5) is inspected for internal clogging in order to match the predetermined pressure value of the compressed air that is passed through the hole (9) and the radiator (1). Compressor connected to the plug (15) upstream of the air gun (7) of the apparatus (4), grasping the air gun lever (13) and opening the air gun open / close valve (23) to be discharged from the negative pressure generating pipe (12) The rubber plate (25) closes the air, and the pressure in the middle path (18) discharged from the punched hole (9) is measured by the pressure gauge (8), and the pressure is adjusted to a predetermined value by the valve (14).

The predetermined pressure value is a pressure at which the radiator is not destroyed, and the value is determined by the capacity of the radiator. In the case of heaters, mini-cars, small cars, and small trucks, the instantaneous pressure is 0.1 MPa and the normal discharge pressure is 0.05 MPa.
In addition, since the large radiator having a larger capacity than the above is a discharge outlet area, that is, a large hose port, since the compressed air is insufficient and cannot be measured accurately at the flow rate of the predetermined pressure, the radiator ( After confirming that the pressure is not applied to the radiator by passing compressed air in 1), measure while increasing the outlet discharge amount of the radiator while monitoring the pressure gauge.

An example of the capability of the compressor required for the blockage inspection of a radiator is illustrated.
In the case of a heater, mini-car, small car or small truck, 2 horsepower 8 MPa or more, medium truck, or large truck 10 horsepower 8 MPa is desirable.

    Examples of the high-pressure supply means include an air compressor that supplies high-pressure air as a high-pressure fluid, a pump that supplies high-pressure liquid as a high-pressure fluid, and the like.

  In addition, when the radiator is large and the capacity of the supply compressor is insufficient, auxiliary means such as an auxiliary blower can be added to the apparatus.

    The pressure measuring means is not particularly limited, but in addition to a pressure gauge, a member that deforms (eg, expands, curves, stretches, etc.), changes, moves, generates power, or reacts according to the pressure of the fluid or Illustrate substances.

"Effect of the embodiment"
According to this embodiment, (a) the apparatus of the present invention can be used in the same manner as an air tool without using tap water in inspection of clogging of a radiator in an automobile maintenance shop, and can be measured without removing the radiator from the vehicle. In addition, the engine-side hose that is easy to remove and the hose attached to the radiator can be inspected by sending compressed air to the radiator from the engine-side hose.
(B) Excessive pressure can be prevented from being applied to the heatsink, the structure is simple, and it can be configured with few parts, improving portability and mobility, improving reliability, and supplying at low cost You can do it.

"Other embodiments"
The one with the conventional regulator attached without the hole (9).
A structure that omits the valve (14) and discharges the air gun by other methods.
The structure without the sensor pipe.
Pressure gauge (8) Sensor pipe (10) Negative pressure generating pipe (12) is omitted, and a hole (9) is used.

In the device of the present invention, when the total air passage area of the narrow tubes (31) is excessively large relative to the outlet area of the radiator, the inspection result is not clogged even if the clogging inspection is performed, and cannot be measured. In most cases where the outlet is overheated, the outlet flow rate is often insufficient.If the device of the present invention is understood and used, it can be said that it is a practical device. This can be said to be a more practical device because it can remove sludge.

It is a perspective view which shows a prior art. It is a perspective view which shows the proposal technique It is a front view of the present invention It is sectional drawing of this invention It is a perspective view of the whistle of the 2nd measuring means. It is a mounting perspective view of a transparent pipe of the third measuring means It is a perspective view of a flat connector rubber plug. It is a perspective view which shows the pressure adjustment of a proposal technique. There is a cross-sectional view inspecting the car heater with the proposed technology It is sectional drawing which attached the whistle to the sensor pipe. There is a cross-sectional view inspecting the radiator with the proposed technology

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Radiator 2 Water supply hose 3 Outlet flow rate 4 Radiator internal clogging inspection device 5 Compressor 6 Radiator upper hose port 7 Air gun 8 Pressure gauge 9 Hole 10 Sensor pipe 11 Flat connector rubber plug 12 Negative pressure generating pipe 13 Air gun lever 14 Valve 15 Plug 16 Negative pressure generating place 17 Mekra lid 18 Middle path 19 Relay pipe 20 Whistle 21 Rubber pipe 22 Transparent pipe 23 Air gun opening / closing valve 24 Tubular container with water 25 with air vent 25 Rubber plate 26 Right side 27 Left side 28 Position of water column 29 Heater 30 Radiator core 31 Narrow tube 32 Radiator inlet 33 Radiator outlet 34 Rubber tube 35 Finger 36 Air gun discharge tube 37 Air hose 38 Finger

Claims (10)

The present invention is installed in the middle of the fluid flow path, and the clogging of the inspection object is confirmed by the pressure generated on the upstream side of the portion where the inspection object is blocked by passing compressed air or liquid through the inspection object. In addition, while measuring the pressure, close the discharge outlet of the object to be inspected as a finger, apply a pressure change on the upstream side to sense the change in the pressure, know the discharge port blocking area before the pressure rises, An apparatus for inspecting clogging of the intermediate flow path upstream and downstream of the inspection object with the blockage area, the relay path relaying the fluid from the upstream side to the downstream side, and compressing the inspection object As a means for reducing the unexpected and excessive pressure generated due to the clogged fluid, a vent hole communicating with the inside and outside of the previous relay path is provided, and after the pressure is once discharged from the vent hole, To hold it against the fluid that is released The pressure can be measured by stopping the discharge of fluid from the punched hole, and the punched hole closes the negative pressure pipe fluid outlet at the downstream part of the apparatus and opens and closes the valve at the upstream part to Clogging inspection device with adjustable pressure. When there is no load on the downstream side, the punched hole has a structure capable of reducing the pressure by the ejector principle and sucking an external fluid. A high-pressure supply means for supplying a pressurized fluid and an inspection object into which the fluid is injected are interposed in the middle of the fluid flow path, and compressed air or liquid is supplied to the inspection object. A clogging inspection apparatus having a measuring means for measuring a pressure generated on the upstream side of a clogged portion of a flowing inspection object. A clogging inspection apparatus capable of detecting a change in pressure by negative pressure or positive pressure when a pressure generated on the upstream side of the clogged inspection object is changed by closing the outlet on the downstream side of the inspection object. A clogging inspection apparatus having means for generating a pressure when a pressure generated on the upstream side in the previous period is weak and it is difficult to measure with a Bourdon tube pressure gauge. A clogging inspection apparatus having measuring means for measuring a change in pressure generated upstream of clogging of the inspection object with a negative pressure. A device that can add other auxiliary supply means such as an auxiliary blower when the inspection object is large and the capacity of the supply compressor is insufficient. A clogging inspection apparatus in which claims 5 and 6 of the pressure measuring means are detachable or replaceable. Sludge removal flushing device with a mechanism for punching holes in this device. A flat connector rubber plug that allows this device to be easily connected to an inspection object.

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