KR101677910B1 - System for heating high pressure oil - Google Patents

System for heating high pressure oil Download PDF

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Publication number
KR101677910B1
KR101677910B1 KR1020150164826A KR20150164826A KR101677910B1 KR 101677910 B1 KR101677910 B1 KR 101677910B1 KR 1020150164826 A KR1020150164826 A KR 1020150164826A KR 20150164826 A KR20150164826 A KR 20150164826A KR 101677910 B1 KR101677910 B1 KR 101677910B1
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KR
South Korea
Prior art keywords
oil
pressure
heater
circulation pipe
preheater
Prior art date
Application number
KR1020150164826A
Other languages
Korean (ko)
Inventor
강명희
Original Assignee
명성파인텍 주식회사
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Publication date
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Priority to KR1020150164826A priority Critical patent/KR101677910B1/en
Application granted granted Critical
Publication of KR101677910B1 publication Critical patent/KR101677910B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/008—Subject matter not provided for in other groups of this subclass by doing functionality tests
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M99/00—Subject matter not provided for in other groups of this subclass
    • G01M99/002—Thermal testing
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

Disclosed is a new high-pressure oil heating device, securing safety of test equipment and a worker. The present invention comprises: an oil circulation pipe; an oil cooler; an oil preheater; an oil heater; a high-pressure oil pump; a thermometer or a pressure gauge; and a control unit.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001]

The present invention relates to a high pressure oil heating apparatus, and more particularly, to a system and a method for testing a high pressure oil heating apparatus, It is possible to heat the oil accurately and quickly at a desired temperature and pressure and to heat the oil by indirect heating in a state where a high pressure is applied to the oil so as to block the connection with oxygen, It is possible to prevent the generation of odor and smoke due to harmful gas during the heating process of the test equipment and the operator.

Generally, since the engine of an automobile is composed of a large number of friction elements, the output of the engine is lowered by frictional resistance. In order to reduce the output degradation of the engine due to such frictional resistance, oil is supplied to each friction element do.

In order to supply oil to each friction element constituting the engine, the oil must be changed to a pressure fluid. To this end, an automobile is provided with an oil pump for receiving and driving the power of the engine. The oil pump includes a crank case the oil supplied to the crankcase is supplied to the inner wall of the cylinder and the outer wall of the piston while being supplied to the valve and the opening and closing means disposed at the upper portion of the cylinder through a predetermined path.

The oil supplied to each friction element constituting the engine reduces the frictional resistance between the frictional elements to smoothly perform the operation. At the same time, the metal powder or other foreign material generated during the friction between the friction elements And moves to the crankcase to clean the surface of the friction element.

However, since the metal powder or the foreign substance moved to the crank case by the action of the oil can be pumped and moved to the friction element again when the oil pump is driven, an oil filter for filtering metal powder or foreign matter Respectively.

On the other hand, the mechanical parts to which the oil is applied, such as the above-mentioned oil filter, must be subjected to a separate performance test to analyze and determine whether or not the oil is recycled after a certain period of use. In the state that the machine parts to be tested for performance are mounted, the oil heated by the same temperature and pressure as the usual machine parts are used to analyze and judge whether the performance is maintained properly.

In order to accomplish this, the oil supplied for testing the performance of the mechanical parts is heated and supplied to the batch type. In the case of heating the oil to the batch type, it takes a long time to heat the oil to the proper temperature Of course, there is a risk of fire and explosion when the oil vapor generated during the heating of the oil comes into contact with oxygen.

In addition, when oil is heated in a batch type as in the prior art, harmful gas and odor are generated, durability of the performance test equipment (ridene of the pump and valves are easily damaged under high temperature and high pressure) So that the safety is low.

On the other hand, Korean Patent Registration No. 10-0933880 (name: a waste oil heating supply device, hereinafter referred to as "prior art") has been proposed as an example of a device for heating oil.

The prior art includes a metal preheating block in which three oil circulation paths are formed in parallel in the longitudinal direction; An oil supply unit coupled to an inlet of the right oil circulation path among the three oil circulation paths; First and second caps coupled to the central and left oil circulation passages of the three oil circulation passages; An oil rising passage formed through one end of the central oil circulation passage; An oil descending passage formed through one end of the left oil circulation path; A connecting path connecting the right oil circulation path and the other end of the central oil circulation path; An oil pressure regulator coupled to the oil rising passage and the oil falling passage at an upper side of the preheating block to regulate the amount of oil; An oil outlet formed through the upper end of the left oil circulation path; A preheating rod insertion hole formed in the longitudinal direction inside the preheating block; And a preheating rod coupled to the preheating rod insertion hole to effectively heat the waste oil and supply the precise pressure and temperature.

However, in the prior art, there is a problem that the oil can not be heated quickly and accurately until the desired temperature and pressure are reached.

Patent Document: Korean Registered Patent Publication No. 10-0933880, "Waste oil heating supply device ".

SUMMARY OF THE INVENTION The present invention has been made in order to solve such conventional problems and it is an object of the present invention to provide a method and a device for measuring the performance of various mechanical parts to which oil is applied, And to provide a new high-pressure oil heating apparatus which can be heated accurately and quickly at an appropriate temperature and pressure.

Another object of the present invention is to provide a new high-pressure oil heating apparatus which can prevent the danger of fire by blocking the connection with oxygen by heating the high-pressure oil in an indirect heating system.

It is still another object of the present invention to provide a new high-pressure oil heating apparatus capable of ensuring the safety of the test equipment and the operator by preventing the generation of odor and smoke by the harmful gas during the heating process of the oil, .

In order to achieve the above object, the present invention provides an oil circulation system comprising: an oil circulation pipe installed on a part fixing table on which a mechanical part to be tested is mounted, for allowing heated oil to flow in and out of the mechanical part during performance inspection; A cooling water circulation pipe for cooling the oil discharged from the component fixing table by the cooling action of the cooling water flowing in and circulating from the outside is wrapped around the outer circumferential surface of the oil circulation pipe, An installed oil cooler; An oil pre-heater installed to communicate with an oil circulation pipe corresponding to a rear side of the oil cooler and preheating the oil cooled in the oil cooler to 60 to 80 ° C; An oil heat exchanger provided in communication with the oil circulation pipe corresponding to the rear side of the oil preheater, for instantly heating the preheated oil passing through the oil preheater to reach a preset temperature, and supplying the oil to the mechanical parts mounted on the component fixing object ; A high pressure oil pump installed in communication with the oil circulation pipe between the oil preheater and the oil heater to pump the oil preheated by the oil preheater to the high pressure and supply the oil to the oil heater; A thermometer / pressure gauge installed on the oil circulation pipe connected between the oil heater and the part fixing table to check whether the oil passed through the oil heater is maintained at a predetermined temperature and generate an electric signal; The oil cooler, the oil preheater, the oil heater, the high pressure oil pump, and the thermometer / pressure gauge are electrically connected to each other to control the operation of the oil cooler, the oil preheater, the oil preheater, A temperature / pressure regulator is provided to allow the thermometer / pressure gauge to be controlled, and when the indicated temperature and pressure of the thermometer / pressure gauge does not reach the set temperature and pressure or exceeds the set temperature and pressure, And a control unit for controlling the driving of the oil heat exchanger so that the oil supplied to the machine parts mounted on the component fixing table through the oil heat exchanger is always maintained at the set temperature and pressure.

 In the present invention, the inside of the oil heat exchanger is empty, and a pipe connection part is connected to the oil circulation pipe through which the oil supplied to the machine parts mounted on the part fixing table is heated after the oil is discharged from the component fixing table, A formed housing; A plurality of oil pipes installed across the inside of the housing; A plurality of " U "-shaped connecting pipes coupled to the outside of the side surface of the housing so that end portions of adjacent oil pipes are connected to communicate with each other; A plurality of electric heaters installed in the housing so as to be in close contact with an outer circumferential surface of the oil pipe and electrically connected to the control unit to heat oil passing through the oil pipe while being heated by application of electric current; And a heat insulating material filled between the high-pressure oil pipe and the electrothermal heater in a space inside the housing.

According to the present invention, when the performance of various mechanical parts to which oil is applied such as an oil filter of an automobile is tested, the oil supplied to the mechanical parts is heated to a temperature and a pressure required for the performance test (150 to 160 ℃, 2 ~ 16bar), it is effective to perform the performance test for the machine parts more precisely.

In addition, since the high-pressure oil is heated by the indirect heating method in the present invention, there is an effect that the risk of fire and explosion due to the vapor is eliminated while the coupling with oxygen is intrinsically blocked.

In addition, since the odor and smoke are not generated by the harmful gas during the heating process of the oil, the safety of the test equipment and the operator can be secured. Since the high temperature and high pressure oil do not pass through the pump or the valve type, This device is most effective for oil heating at high pressure.

1 is a configuration diagram showing a high-pressure oil heating apparatus according to the present invention.
2 is an enlarged perspective view of a high-pressure oil heating apparatus according to the present invention
Fig. 3 is an enlarged cross-sectional view of the main portion of the high-pressure oil heating apparatus according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3, a high-pressure oil heating apparatus 10 according to the present invention is provided with a component fixing table 14 on which a mechanical component 12 to be tested is mounted. An oil circulation pipe 16 is provided for allowing the heated oil to flow into and out of the mechanical part 12 during performance inspection of the part 12. [

In the present invention, a separate oil cooler 18 is installed on the oil discharge path on the oil circulation pipe 16. Inside the oil cooler 18, the cooling water of the oil cooler 18, The cooling water circulation pipe 18a for cooling the oil discharged from the oil circulation pipe 14 is installed so as to be wrapped around the outer circumferential surface of the oil circulation pipe 16 passing through the oil cooler 18. [

The oil circulator pipe 16 corresponding to the rear of the oil cooler 18 is installed to be connected to a separate oil preheater 20. The oil preheater 20 is connected to the oil cooler 18, It functions to preheat the oil to 60 ~ 80 ℃.

In the present invention, the oil circulating pipe (16) corresponding to the rear of the oil pre-heater (20) is instantaneously heated so that the pre-heated oil passes through the oil pre-heater (20) (30) for supplying the oil to the machine parts (12) mounted on the oil pan (14).

The temperature and pressure of the oil heated while passing through the oil heater 16 vary depending on the mechanical parts to be tested. In the case of the oil filter, the oil heated to 150 to 160 캜 is heated to a temperature of 2 to 16 bar It should be supplied with pressure.

The oil preheater 20 is connected to the oil preheater 20 and the oil circulation pipe 16. The oil preheater 20 is provided with a high pressure oil pump (40) are communicated with each other.

The oil circulation pipe 16 connected between the oil heater 30 and the part fixing table 14 is provided with a check valve for checking whether the oil passed through the oil heater 30 is maintained at a predetermined temperature and pressure, And a thermometer / pressure gauge 50 for generating a thermometer /

In the present invention, the oil cooler 18, the oil preheater 20, the oil heater 30, the high-pressure oil pump 40, and the thermometer / pressure gauge 50 are electrically connected to the separate controller 60 .

The control unit 60 controls the operations of the oil cooler 18, the oil preheater 20, the oil heater 30, the high-pressure oil pump 40, and the thermometer / pressure gauge 50 according to a preset program The control unit 60 may be provided with a temperature pre-heater 20 and a temperature / pressure regulator 61 for inputting the temperature and pressure on the oil heater 30.

In this case, when the indicated temperature and pressure of the thermometer / pressure gauge 50 exceed the set temperature and pressure or the set temperature and pressure are exceeded, the control unit 60 receives the electric signal from the thermometer / pressure gauge 50 It is possible to control so that the oil supplied to the mechanical part 12 mounted on the part fixing table 14 through the oil heater 30 is always maintained at the set temperature and pressure by controlling the driving of the oil heat exchanger 30. [

 The oil heater 30 constituting the present invention is provided with a separate housing 31 in which the interior thereof is hollow. The housing 31 is disposed at one of the lower end and the upper end of the housing 31, A pipe connecting portion 31a for connecting the oil circulating pipe 16 through which the oil supplied to the machine parts 12 mounted on the part fixing table 14 is connected is formed.

A plurality of oil pipes 32 are installed across the inside of the housing 31 and an end portion of the adjacent oil pipe 32 is connected to the outside of the side surface of the housing 31 A plurality of "∪" type connecting pipes 33 are combined.

The oil pipe 32 provided inside the housing 31 is heated while being heated by application of electric current in a state in which the electric heater 34 electrically connected to the control unit 60 is installed in close contact with the oil pipe 32 To heat the oil.

A separate heat insulating material 35 is filled in the space inside the housing 31 between the oil pipe 32 and the electrothermal heater 34 constituting the oil heater 30.

The operation of the present invention is as follows.

When the performance of the mechanical part 12 such as an oil filter is to be tested, the high-pressure oil heated from the outside is mounted on the part fixing table 14 while the mechanical part 12 is mounted on the part fixing table 14 1, the oil used for the performance test after the completion of the performance test on one mechanical part 12 is supplied to the component holder 12 14 into the oil circulation pipe 16 through the discharge path on the oil circulation pipe 16.

The oil discharged through the oil circulation pipe 16 passes through the oil cooler 18 and is cooled to room temperature by the cooling water circulated through the cooling water circulation pipe 18a. After passing through the oil cooler 18 The cooled oil is introduced into the oil preheater 20 and then preheated to 60 to 80 占 폚.

The oil preheated by the oil preheater 20 is supplied to the oil pipe 32 in the oil heater 30 by the pumping action of the high pressure oil pump 40 and is supplied to the oil pipe 32 at a preset temperature and pressure , 2 to 16 bar).

In this process, when the temperature and pressure suitable for the mechanical part 12 (150 to 160 DEG C, 2 to 16 bar in the case of the oil filter) are inputted to the temperature / pressure regulator 61 constituting the control part 60, The control unit controls the heating temperature of the electrothermal heater 32 in such a manner as to control the current applied to the electrothermal heater 32.

The oil passing through the oil pipe 32 provided inside the housing 31 constituting the oil heater 30 is instantaneously heated to reach the set temperature and pressure.

The high-pressure oil heated through the oil heater 30 flows into the mechanical part 12 mounted on the part fixing table 14 and is used for the performance test.

At this time, when the indicated temperature and pressure of the thermometer / pressure gauge 50 exceed the set temperature and pressure or the set temperature and pressure are exceeded, the control unit 60 receives the electric signal from the thermometer / pressure gauge 50 It is possible to control the operation of the oil heater 30 and the high-pressure oil pump 40 such that the oil supplied to the machine component 12 mounted on the component-fixing table 14 via the oil heater 30 is always maintained at the set temperature and pressure .

10: Oil heating device
12: Machine part 14: Part fixing board
16: Oil circulation pipe 18: Oil cooler
18a: cooling water circulation pipe 20: oil preheater
30: Oil heater 31: Housing
31a: pipe connecting portion 32: oil pipe
33: "∪" type connecting pipe 34: electric heater
35: Insulation material 40: High-pressure oil pump
50: thermometer / pressure gauge 60:
61: Temperature / pressure regulator.

Claims (2)

An oil circulation pipe (16) installed on a part fixing table (14) on which a mechanical part (12) to be tested is mounted to allow heated oil to flow in and out of the mechanical part (12) during performance inspection;
A cooling water circulation pipe 18a for cooling the oil discharged from the component fixing table 14 by the cooling action of the cooling water flowing in from the outside and circulating from the outside is installed inside the oil circulation pipe 16, An oil cooler 18 installed so as to be wrapped around the outer peripheral surface of the oil circulation pipe 16;
An oil preheater 20 connected to the oil circulation pipe 16 corresponding to the rear of the oil cooler 18 to preheat the oil cooled by the oil cooler 18 to 60 to 80 ° C;
The oil preheater 20 is connected to the oil circulation pipe 16 corresponding to the rear of the oil preheater 20 and instantaneously heated to pass through the oil preheater 20 so that the preheated oil reaches a preset temperature and pressure, An oil heater (30) for supplying the oil to the mechanical parts (12) mounted on the oil pan (14);
The oil preheater 20 is connected to the oil circulation pipe 16 between the oil preheater 20 and the oil heat exchanger 30. The oil preheater 20 pumps the oil preheated at the high pressure to the oil heat exchanger 30, An oil pump 40;
The oil circulation pipe 16 is provided on the oil circulation pipe 16 connected between the oil heater 30 and the component fixing table 14 to check whether the oil passed through the oil heater 30 is maintained at the set temperature and pressure, A thermometer / pressure gauge 50 for generating a signal;
And is electrically connected to the oil cooler 18, the oil preheater 20, the oil heater 30, the high-pressure oil pump 40 and the thermometer / pressure gauge 50 to control their operation according to a predetermined program A temperature / pressure regulator 61 for inputting the temperature and pressure on the oil preheater 20 and the oil heater 30 is installed and the temperature and pressure of the thermometer / pressure gauge 50 are set Pressure gauge 50 to control the operation of the oil heater 30 to control the operation of the oil pan 30 through the oil pan 30 so as to move the oil pan 30 to the part fixing table 14 when the temperature and pressure are exceeded, And a control unit (60) for controlling the oil supplied to the mechanical parts (12) mounted on the main body (12) to be maintained at the set temperature and pressure at all times. The method according to claim 1,
The oil heater 30 is hollow and has a high-pressure oil supplied to the machine parts 12 mounted on the part-fixing table 14 through a heating process after being discharged from the component-fixing table 14 at one side of the lower end and the upper end thereof. A housing 31 having a pipe connecting portion 31a for connecting the circulating oil circulation pipe 16;
A plurality of oil pipes (32) installed across the inside of the housing (31);
A plurality of " U "-shaped connecting pipes (33) coupled to the outside of the side surface of the housing (31) so that the end portions of the adjacent oil pipes (32)
The oil pipe 32 is installed in the housing 31 so as to be in close contact with the outer circumferential surface of the oil pipe 32 and is electrically connected to the control unit 60 so that the oil passing through the oil pipe 32, A plurality of electrothermal heaters (34) for heating;
And a heat insulating material (35) filled between the oil pipe (32) and the electrothermal heater (34) in a space inside the housing (31).
KR1020150164826A 2015-11-24 2015-11-24 System for heating high pressure oil KR101677910B1 (en)

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KR1020150164826A KR101677910B1 (en) 2015-11-24 2015-11-24 System for heating high pressure oil

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KR1020150164826A KR101677910B1 (en) 2015-11-24 2015-11-24 System for heating high pressure oil

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102056440B1 (en) 2019-06-03 2019-12-16 대륜기업(주) Heating apparatus for insulating oil of transformer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06117212A (en) * 1992-10-02 1994-04-26 Ono Sokki Co Ltd Engine lubricating oil temperature control device
KR20050097810A (en) * 2004-04-02 2005-10-10 임동길 A rapidity heating apparatus thereof and rapidity heating method
KR100933880B1 (en) 2009-03-27 2009-12-28 주식회사 보명비엔엠 Device for heating and suppling used oil
KR101131144B1 (en) * 2009-09-30 2012-04-03 한전케이피에스 주식회사 Test device for actuator
KR101355124B1 (en) * 2011-12-02 2014-02-04 성명제 A Expansion Tank Equipped a Warm-up Function of a Boiler and A Boiler-System Using the Same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06117212A (en) * 1992-10-02 1994-04-26 Ono Sokki Co Ltd Engine lubricating oil temperature control device
KR20050097810A (en) * 2004-04-02 2005-10-10 임동길 A rapidity heating apparatus thereof and rapidity heating method
KR100933880B1 (en) 2009-03-27 2009-12-28 주식회사 보명비엔엠 Device for heating and suppling used oil
KR101131144B1 (en) * 2009-09-30 2012-04-03 한전케이피에스 주식회사 Test device for actuator
KR101355124B1 (en) * 2011-12-02 2014-02-04 성명제 A Expansion Tank Equipped a Warm-up Function of a Boiler and A Boiler-System Using the Same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102056440B1 (en) 2019-06-03 2019-12-16 대륜기업(주) Heating apparatus for insulating oil of transformer

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