Device for cleaning carbon deposit in fuel oil-lubricating oil heat exchanger

Abstract

The utility model discloses a cleaning device for internal carbon deposition of a fuel oil-lubricating oil heat exchanger, which comprises an electromagnetic vibration table, a cleaning device and a cleaning device, wherein a pipeline interface used for connecting a workpiece is arranged on a working table surface of the electromagnetic vibration table and corresponds to a cleaning station; a water tank, a water pump and a pipeline heater are arranged on the cleaning pump station, the water tank is connected with the pipeline connector through a water inlet pipeline and a water return pipeline to form a flushing circulation loop, and the water pump and the pipeline heater are connected to the flushing circulation loop in series. A compressor is arranged on the cleaning pump station, and the air outlet end of the compressor is connected to the water inlet pipeline through a Venturi jet device. A water circulation washing mode and a gas drive liquid washing mode are arranged on the cleaning operation table, in the water circulation washing mode, the water pump drives water in the water tank to wash a workpiece, and in the gas drive liquid washing mode, the compressor pumps air into the Venturi jet device and forms a water-gas mixture in the Venturi jet device; and the water-air mixture is driven by the compressed air to wash the workpiece, so that the cleaning efficiency is high, and the use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of cleaning equipment, and particularly relates to a carbon deposition cleaning device for the inside of a fuel-oil lubricating oil heat exchanger. BACKGROUND

[0002] The fuel-oil lubricating oil heat exchanger is installed on an aircraft oil return pipeline and uses fuel oil of a relatively low temperature to dissipate heat from hydraulic oil. The fuel-oil lubricating oil heat exchanger is composed of a shell and a safety valve, and the shell contains two mutually sealed and staggered cavities (a tube cavity and an inter-tube cavity). The inlets and outlets of the two cavities are connected together by the safety valve. When the accessories are working normally, working fluid of a relatively high temperature passes through the mutually staggered working cavities to transfer heat to the working fluid of a relatively low temperature. When the inner cavity is blocked, the safety valve is opened to maintain normal operation of the two-cavity system. After long-term operation of the product, a large amount of carbon deposition and impurities adhere to the inner cavity wall of the heat exchanger, which affects the working efficiency of the product.

[0003] At present, the cleaning method is to manually pour hot water into the inside of the fuel-oil lubricating oil heat exchanger product, stir and clean by using a brush, and continuously shake by manpower, and the carbon deposition cleaning quality and efficiency are both low.

[0004] Therefore, how to provide a carbon deposition cleaning device for the inside of a fuel-oil lubricating oil heat exchanger that is efficient and convenient to clean is a problem that needs to be solved by those skilled in the art. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a carbon deposition cleaning device for the inside of a fuel-oil lubricating oil heat exchanger, which is used for cleaning carbon deposition in the inside of various fuel-oil lubricating oil heat exchangers, is convenient and safe to use, reduces labor intensity, saves time, guarantees cleaning quality and production progress.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a carbon deposition cleaning device for the inside of a fuel-oil lubricating oil heat exchanger, comprising:

[0007] An electromagnetic vibration table is provided with a plurality of cleaning stations on the workbench surface, and a pipeline interface for connecting a workpiece is arranged on the workbench surface corresponding to the cleaning stations;

[0008] A cleaning pump station is provided with a water tank, a water pump and a pipeline heater, the water tank provides a flushing medium, the water tank is connected to the pipeline interface by a water inlet pipeline and a water return pipeline to form a flushing circulation loop, and the water pump and the pipeline heater are connected in series on the flushing circulation loop; a compressor is arranged on the cleaning pump station, and the air outlet end of the compressor is connected to the water inlet pipeline by a Venturi jet.

[0009] The washing operation platform is electrically connected with the electromagnetic vibration table and the washing pump station, and is provided with a water circulation flushing mode and a gas-driven liquid flushing mode.

[0010] The washing pump station and the washing operation platform provide two flushing modes, one is the water circulation flushing mode, and the other is the gas-driven liquid circulation flushing mode.

[0011] Preferably, the workpieces on the plurality of washing stations are connected in series on the flushing circulation loop.

[0012] Thus, the product can clean multiple workpieces at a time, and the workpieces are connected in series on the flushing circulation loop, wherein the cavities of the workpieces are connected with the pipeline interfaces, and the flushing medium carries away the carbon deposits when passing through the workpieces, thereby improving the cleaning efficiency.

[0013] Preferably, the water tank, the water pump, the pipeline heater and the compressor are integrally arranged on the moving table, a low-pressure ball valve is connected on the pipeline between the water tank and the external water source, and an air filter and a constant pressure valve are arranged on the water tank.

[0014] Thus, the washing pump station is designed in an integrated manner, thereby reducing the occupied area and facilitating the turnover use, the pipeline heater is efficient in heating, thereby realizing rapid heating of the circulating water and being beneficial to cleaning the internal carbon deposits of the workpieces, the low-pressure ball valve can ensure uniform water supply to the water tank at a low pressure, the air filter can filter the gas impurities when air is supplied to the water tank, and the constant pressure valve can maintain the stability of the system in the gas-driven liquid mode.

[0015] Preferably, an operation panel, a display and an electrical box are arranged on the washing operation platform, the operation panel is electrically connected with the display, the electrical box, the water pump, the pipeline heater and the compressor, and the operation panel realizes the switching operation of the water circulation flushing mode and the gas-driven liquid flushing mode.

[0016] The technical effects generated thereby are that the display on the operation panel can display the device operating parameters and states, and in specific implementation, the start and switching operations of the water circulation flushing mode and the gas-liquid flushing mode are completed through the keys on the operation panel.

[0017] Preferably, the operation panel is provided with a system pressure gauge, a product pressure gauge, a water temperature display, a power switch, a pump start switch, a pump stop switch, an emergency stop switch, a pressure regulating switch, a gas source switch, a heating start switch, a heating stop switch, and a switching switch, to realize the start-stop control of the water pump and the pipe heater and the display operation of their operating states.

[0018] The technical effects generated thereby are that the various keys on the operation panel realize the control of the workpiece cleaning process.

[0019] Preferably, the water inlet pipeline of the water tank towards the workpiece direction is sequentially connected with a water pump, a filter, a check valve, a safety valve, a pressure regulating valve, a first pressure gauge, a pipe heater, a three-way electromagnetic valve, a Venturi jet device, and a second pressure gauge, a drainage pipeline is connected between the bypass valve port of the three-way electromagnetic valve and the water tank, and the bypass valve port of the three-way electromagnetic valve is closed in the water circulation flushing mode.

[0020] The technical effects generated thereby are that in the water circulation flushing mode, the water in the water tank is pumped into the water inlet pipeline by the water pump, heated to a set temperature by the pipe heater, and then delivered into the inner cavity of the workpiece through the three-way electromagnetic valve, so that the dirt and impurities inside the workpiece are cleaned by continuous and constant circulation flushing. The pressure regulating valve (pressure regulating switch) realizes the adjustment of the water supply pressure, and the pressure value in the pipeline is displayed on the first pressure gauge. The safety valve is used for pressure relief when the system pressure is too high, to ensure the safety and reliability of the system.

[0021] Preferably, a one-way control valve and an adjusting switch are connected to the pipeline between the compressor and the Venturi jet device, the bypass valve port is opened in the gas-liquid flushing mode, compressed air enters the Venturi jet device through the one-way control valve, a water-air mixture is formed inside the Venturi jet device, and is delivered into the inner cavity of the product under the driving of the compressed air, and the medium water in the drainage pipeline is drained to the Venturi jet device.

[0022] The technical effects are: the Venturi jet device side opening is connected with the water tank through the water inlet pipeline, and the main inlet is connected with the compressed air source. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 It is a structural view of the internal carbon cleaning device for the fuel-oil lubricating oil heat exchanger;

[0024] Fig. 2 It is a cleaning pump station schematic view of the internal carbon cleaning device for the fuel-oil lubricating oil heat exchanger;

[0025] Fig. 3 It is a cleaning operation table structural view of the internal carbon cleaning device for the fuel-oil lubricating oil heat exchanger;

[0026] Fig. 4 It is an electromagnetic vibration table structural view of the internal carbon cleaning device for the fuel-oil lubricating oil heat exchanger;

[0027] Fig. 5 It is a two flushing mode principle schematic of the internal carbon cleaning device for the fuel-oil lubricating oil heat exchanger;

[0028] Fig. 6 It is an electrical control view of the internal carbon cleaning device for the fuel-oil lubricating oil heat exchanger.

[0029] 1 electromagnetic vibration table, 101 workbench, 102 pipeline interface, 2 workpiece, 3 cleaning pump station, 31 water tank, 32 water pump, 33 pipeline heater, 4 water inlet pipeline, 5 water return pipeline, 6 Venturi jet device, 7 low-pressure ball valve, 8 air filter, 9 cleaning operation table, 10 operation panel, 11 electrical box, 12 filter, 13 check valve, 14 safety valve, 15 pressure regulating valve, 16 first pressure gauge, 17 three-way electromagnetic valve, 18 second pressure gauge, 19 drainage pipeline, 20 one-way control valve, 21 regulating switch. DETAILED DESCRIPTION

[0030] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] Refer to the drawings of the present application Figs. 1 to 6 According to the embodiment of the present application, a device for cleaning internal carbon deposition of a fuel-oil heat exchanger comprises:

[0032] The electromagnetic vibration table 1 is provided with two cleaning stations on the workbench surface 101, and the workbench surface 101 is provided with a pipeline interface 102 for connecting the chamber of the workpiece 2 corresponding to the cleaning station. Since the internal cleaning of the workpiece is performed, the pipeline interface is designed to realize the pipeline connection of the workpiece chamber, that is, the installation of the workpiece can be realized, and the workpiece can also be connected to the flushing circuit.

[0033] The cleaning pump station 3 is provided with a water tank 31, a water pump 32 and a pipeline heater 33. The capacity of the water tank 31 is 50L, which provides a flushing medium. The water tank 31 is connected to the pipeline interface 102 through the water inlet pipeline 4 and the water return pipeline 5 to form a flushing circulation loop. The water pump 32 and the pipeline heater 33 are connected in series on the flushing circulation loop, which can quickly heat the water in the pipeline. The cleaning pump station 3 is provided with a compressor. The air outlet of the compressor is connected to the water inlet pipeline 4 through the Venturi jet 6. The compressor is a necessary component for realizing the gas-driven liquid flushing mode.

[0034] The cleaning operation table 9 is electrically connected to the electromagnetic vibration table 1 and the cleaning pump station 3. The cleaning operation table 9 is provided with a water circulation flushing mode and a gas-driven liquid flushing mode. In the water circulation flushing mode, the water pump 32 drives the water in the water tank to flush the workpiece 2 on the cleaning station. In the gas-driven liquid flushing mode, the compressor pumps air into the Venturi jet 6 and forms a water-air mixture in the Venturi jet. The water-air mixture is driven by compressed air to flush the workpiece 2.

[0035] In order to improve the efficiency of descaling and detergent removal and improve the cleaning quality of the product, an electromagnetic vibration table with appropriate amplitude is selected. The vibration table can simultaneously vibrate and clean two products (workpieces). The electromagnetic vibration table can set parameters such as vibration amplitude, vibration direction and vibration time.

[0036] In other embodiments, the workpieces 2 on the multiple cleaning stations are connected in series on the flushing circulation loop, thereby realizing the simultaneous cleaning of multiple workpieces.

[0037] In some embodiments, the water tank 31, the water pump 32, the pipeline heater 33 and the compressor are arranged on the mobile platform, which saves space, facilitates water supply to the water tank, facilitates cleaning and maintenance of the water tank in later period, and facilitates heat dissipation of the heater. The low-pressure ball valve 7 is connected to the pipeline between the water tank 31 and the external water source, so as to realize uniform water supply to the water tank at low pressure. The air filter 8 and the constant pressure valve are arranged on the water tank 31. The air filter can ensure the air supply quality to the water tank. The constant pressure valve can realize smooth implementation of the air-driven liquid flushing mode, and avoid the situation that the water tank pressure is too high due to the filling of compressed air.

[0038] In some embodiments, the operation panel 10, the display and the electrical box 11 are arranged on the cleaning operation platform 9. The operation panel 10 is connected to the display, the electrical box 11, the water pump 32, the pipeline heater 33 and the compressor by electrical signals. The operation panel 10 realizes switching operation of the water circulation flushing mode and the air-driven liquid flushing mode. The display can display the running parameters of the equipment and the state of the components.

[0039] In some embodiments, the system pressure gauge, the product pressure gauge, the water temperature display, the power switch, the pump start switch, the pump stop switch, the emergency stop switch, the pressure regulating switch, the air source switch, the heating start switch, the heating stop switch and the switching switch are arranged on the operation panel 10. The system pressure gauge, the product pressure gauge, the water temperature display, the power switch, the pump start switch, the pump stop switch, the emergency stop switch, the pressure regulating switch, the air source switch, the heating start switch, the heating stop switch and the switching switch respectively detect or control the corresponding component objects. The system pressure gauge, the product pressure gauge, the water temperature display, the power switch, the pump start switch, the pump stop switch, the emergency stop switch, the pressure regulating switch, the air source switch, the heating start switch, the heating stop switch and the switching switch respectively detect or control the corresponding component objects.

[0040] In some embodiments, the water inlet pipeline 4 of the water tank 31 towards the workpiece direction is sequentially connected with the water pump 32, the filter 12, the one-way valve 13, the safety valve 14, the pressure regulating valve 15, the first pressure gauge 16, the pipeline heater 33, the three-way electromagnetic valve 17, the Venturi jet device 6 and the second pressure gauge 18. The Venturi jet device is connected to the water tank by a side port. The bypass valve port of the three-way electromagnetic valve 17 is connected with the water tank 31 by the drainage pipeline 19. In the water circulation flushing mode, the bypass valve port of the three-way electromagnetic valve 17 is closed.

[0041] Specifically, the pipeline between the compressor and the Venturi jet device 6 is connected with the one-way control valve 20 and the adjusting switch 21. The main port of the Venturi jet device is connected to the compressed air. In the air-driven liquid flushing mode, the bypass valve port is opened. The compressed air enters the Venturi jet device 6 through the one-way control valve 20, forms a water-air mixture in the Venturi jet device 6, and is delivered to the inner cavity of the workpiece under the driving of the compressed air. The medium water in the drainage pipeline 19 is drained to the Venturi jet device 6.

[0042] The product can switch the washing mode according to different washing objects, and is efficient and convenient to use.

[0043] The electrical control of the product is the basis for realizing the smooth operation of the equipment, and the specific control process of the electrical control system is as follows:

[0044] When the power switch is pressed, the equipment starts, the power indicator light is on, the pump start switch is pressed, the water pump starts to work, and the pump start light is on. After the heating start switch is pressed, the current passes through the heating stop switch, the closed switch, and then the relay starts to work, triggers the contact switch, the contact switch is closed, the heating start light is on, and the pipeline heater starts to heat the water flowing through. The water temperature display shows the water temperature value in real time.

[0045] When the equipment is not used, the heating stop switch, the pump stop switch and the power switch are pressed in turn, and the equipment stops running, and the corresponding indicator light is off. When the equipment is not used for a long time or in an emergency, the emergency stop switch can be pressed, and the equipment immediately stops running. After the rotary switch is rotated, the equipment enters the air-driven liquid washing mode or the water circulation washing mode through two relays.

[0046] The product uses the relatively mature pipeline heating technology in the market, selects appropriate pipeline heaters to achieve the purpose of rapid heating of circulating water, and keeps the temperature constant; in order to improve the washing effect, based on the principle of Venturi tube, a Venturi jet is selected, and a water-air mixture is used to atomize water droplets through compressed air, so as to improve the cleaning quality and efficiency of the workpiece.

[0047] It should be noted that all components of the device are made of corrosion-resistant materials, the connecting pipeline, water tank and operation table are made of stainless steel materials, and the reliability of the equipment is ensured.

[0048] For the device and the use method disclosed in the embodiments, since they correspond to the method disclosed in the embodiments, the description is relatively simple, and the related parts are described in the method part.

[0049] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A device for cleaning internal carbon deposits of a fuel-oil heat exchanger, characterized by, The utility model relates to a kind of cleaning system, including: Electromagnetic vibration table (1), the worktable (101) of electromagnetic vibration table (1) is equipped with multiple cleaning stations, worktable (101) is equipped with pipeline interface (102) for connecting workpiece (2) on corresponding cleaning station; Cleaning pump station (3), water tank (31), water pump (32) and pipeline heater (33) are equipped on cleaning pump station (3), water tank (31) provides flushing medium, water tank (31) is connected with pipeline interface (102) by water inlet line (4) and backwater line (5) respectively and constitutes flushing circulation loop, water pump (32) and pipeline heater (33) are connected in series on the flushing circulation loop;Compressor is equipped on the cleaning pump station (3), the air outlet end of the compressor is connected on the water inlet line (4) by venturi jet (6); Cleaning operation platform (9), cleaning operation platform (9) is electrically connected with electromagnetic vibration table (1) and cleaning pump station (3), water circulation flushing mode and gas-driven liquid flushing mode are equipped on cleaning operation platform (9), in water circulation flushing mode, water pump (32) drives water in water tank to flush workpiece (2) on cleaning station, in gas-driven liquid flushing mode, compressor pumps air into venturi jet (6) and forms water-air mixture in venturi jet, water-air mixture flushes workpiece (2) under the drive of compressed gas.

2. A device for cleaning the internal carbon deposit of a fuel-oil heat exchanger according to claim 1, characterized in that, Workpiece (2) on multiple cleaning stations is connected in series on the flushing circulation loop.

3. A device for cleaning the internal carbon deposit of a fuel-oil heat exchanger according to claim 1, characterized in that, Water tank (31), water pump (32), pipeline heater (33) and compressor are arranged on mobile station, low-pressure ball valve (7) is connected on the pipeline between water tank (31) and external water source, air filter (8) and constant pressure valve are equipped on water tank (31).

4. A device for cleaning the internal carbon deposit of a fuel-oil heat exchanger according to claim 1, wherein Operation panel (10), display and electrical box (11) are equipped on cleaning operation platform (9), operation panel (10) is electrically connected with display, electrical box (11), water pump (32), pipeline heater (33) and compressor respectively, and operation panel (10) realizes the switching operation of water circulation flushing mode and gas-driven liquid flushing mode.

5. A device for cleaning internal carbon deposits from a fuel-oil heat exchanger according to claim 4, characterized in that System pressure gauge, product pressure gauge, water temperature display, power switch, pump start switch, pump stop switch, emergency stop switch, pressure regulating switch, gas source switch, heating start switch, heating stop switch and conversion switch are equipped on operation panel (10), to realize the start-stop control of water pump (32) and pipeline heater (33) and the display operation of its running state.

6. A device for cleaning internal carbon deposits from a fuel-oil heat exchanger according to claim 1, characterized in that, Water pump (32), filter (12), check valve (13), safety valve (14), pressure regulating valve (15), first pressure gauge (16), pipeline heater (33), three-way electromagnetic valve (17), venturi jet (6) and second pressure gauge (18) are connected in sequence on water inlet line (4) of water tank (31) towards workpiece direction, drain line (19) is connected between bypass valve port of three-way electromagnetic valve (17) and water tank (31), in water circulation flushing mode, bypass valve port of three-way electromagnetic valve (17) is closed.

7. A device for cleaning deposits from the interior of a fuel-oil heat exchanger according to claim 6, characterized in that The pipeline between the compressor and the Venturi jet device (6) is connected with a one-way control valve (20) and an adjusting switch (21), in the gas-driven liquid flushing mode, the bypass valve port is opened, the compressed air enters the Venturi jet device (6) through the one-way control valve (20), forms a water-air mixture in the interior, and is driven by the compressed air to be transported to the inner cavity of the workpiece, and the medium water in the drainage pipeline (19) is drained to the Venturi jet device (6).

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