CN211552943U

CN211552943U - Carbon balance oil consumption instrument

Info

Publication number: CN211552943U
Application number: CN202020198075.6U
Authority: CN
Inventors: 张莉莉
Original assignee: Shanghai Changxin Motor Vehicle Technical Service Co ltd
Current assignee: Shanghai Changxin Motor Vehicle Technical Service Co ltd
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2020-09-22
Anticipated expiration: 2030-02-21

Abstract

The utility model relates to an automobile performance detects technical field, a carbon balance oil consumption appearance is disclosed, which comprises a vehicle rack, fixedly connected with fan on the frame, the air inlet department fixedly connected with collecting duct of fan, the air outlet fixedly connected with flow measurement pipe of fan, pressure sensor has set gradually along the gas flow direction on the flow measurement pipe, flow sensor, temperature sensor and exhaust sampling probe, flow measurement pipe's other end fixedly connected with blast pipe, the fan, pressure sensor, flow sensor, temperature sensor and exhaust sampling probe are connected with the control unit, fixedly connected with drying device on the collecting duct, drying device includes control circuit, control circuit establishes ties in proper order has the power, a switch, sliding resistance, heating wire and protective element, the heating wire connects in the week side of intake pipe around. The utility model has the advantages of reduce the interior liquid water of gas collecting pipe, reduce liquid water and get into inside instrument and cause the damage to the instrument.

Description

Carbon balance oil consumption instrument

Technical Field

The utility model belongs to the technical field of the car performance detects technique and specifically relates to a carbon balanced oil consumption appearance is related to.

Background

The carbon balance oil consumption instrument is a simple and movable open type carbon balance oil consumption detection system which directly measures and obtains an automobile exhaust flow value and a carbon-containing gas concentration value by utilizing hardware equipment. The method integrates the technical principle of measuring the automobile exhaust emission by WMAS and CVS systems, dilutes the original automobile exhaust by ambient air to solve the problem that the high temperature and pulsation of the original exhaust are difficult to measure, directly measures the diluted exhaust flow and the concentration of the diluted exhaust carbon-containing gas, relieves the problem that the two are difficult to measure synchronously in real time, adjusts the ambient air quantity for diluting the original exhaust according to the requirement, is suitable for detecting the oil consumption of various types of gasoline and diesel vehicles with different discharge capacities, and has universality.

The existing chinese patent with patent publication number CN205317276U discloses a carbon balance oil consumption detector, which includes: a frame; the fan is arranged on the frame through the shockproof pad; the gas collecting pipe is connected with an air inlet of the fan; the flow measuring tube is provided with a pressure sensor, a flow sensor, a temperature sensor and an exhaust sampling probe in sequence along the gas flowing direction, and is arranged on the frame through a shock pad; the exhaust pipe is connected with the other end of the flow measuring pipe and used for exhausting gas in the flow measuring pipe out of the carbon balance oil consumption detector; and the control unit is respectively connected with the fan, the pressure sensor, the flow sensor, the temperature sensor and the exhaust sampling probe.

The above prior art solutions have the following drawbacks: since the fuel consumption meter is not properly stored before measurement, and the pipeline is affected by the wet weather, it is necessary to ensure that no liquid water can enter the internal pipeline, otherwise the damage of the meter can be caused, and the device capable of solving the problem is not mentioned in the prior art, so the preventive performance of the meter for the problem needs to be improved.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, one of the purposes of the utility model is to provide a reduce the advantage of liquid water in the gas collecting pipe, reduce liquid water and get into internal instrument and cause the balanced oil consumption appearance of carbon of damage to the instrument.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a balanced oil consumption appearance of carbon, includes the frame, fixedly connected with fan on the frame, the air inlet fixedly connected with discharge tube of fan, the air outlet fixedly connected with flow measurement pipe of fan, last pressure sensor, flow sensor, temperature sensor and the exhaust sampling probe of having set gradually along the gas flow direction of flow measurement pipe, the other end fixedly connected with blast pipe of flow measurement pipe, fan, pressure sensor, flow sensor, temperature sensor and exhaust sampling probe are connected with the control unit, fixedly connected with drying device on the discharge tube, drying device is power, switch, sliding resistance, heating wire and the protection component in return circuit including establishing ties in proper order, the heating wire connect around week side of discharge tube.

By adopting the technical scheme, the oil consumption meter is used before, and gas enters from the gas collecting pipe, then enters into the gas collecting pipe to be detected in a certain series, and then is exhausted through the exhaust pipe; before the gas collecting tube is used, the switch is turned on, the sliding resistor is adjusted to adjust the temperature of the electric heating wire, and when the sliding resistor is adjusted, the protection element can protect the circuit, so that the electric heating wire is not easy to be heated in China due to overlarge current or voltage, and the tube wall of the gas collecting tube is not easy to damage; at the in-process of heating, the heating wire makes the interior temperature rise of gas collecting pipe to be favorable to accelerating the evaporation of liquid water in the gas collecting pipe, thereby played the effect of drying, the heating wire of wire wrapping all sides at the gas collecting pipe makes being heated of gas collecting pipe more comprehensive, is favorable to improving the effect of drying, after the stoving is accomplished, closes the switch, lets the gas collecting pipe be connected and detect with the carminative pipeline of the vehicle under test.

The present invention may be further configured in a preferred embodiment as: the gas collecting pipe is a corrugated pipe, and the heating wire is wound at the outer side concave part of the corrugated pipe in a threaded manner.

Through adopting above-mentioned technical scheme, the bellows is favorable to increasing the heated area of gas collecting pipe to be favorable to the evaporation of liquid water, place the heating wire of bellows depressed place and be difficult to influence placing of gas collecting pipe.

The present invention may be further configured in a preferred embodiment as: and an insulating layer is arranged on the surface of the electric heating wire.

Through adopting above-mentioned technical scheme, the insulating layer is favorable to avoiding the staff to touch the electric shock that the infant leads to the mistake of heating wire, has the effect of protection.

The present invention may be further configured in a preferred embodiment as: the end part of the electric heating wire is connected with the end part of the gas collecting pipe through a clamping piece, and the clamping piece is in annular threaded connection with the end part of the gas collecting pipe.

Through adopting above-mentioned technical scheme, threaded connection's clamping piece can drive the heating wire and produce the displacement and taut heating wire when rotatory fixed, is favorable to the fixed of heating wire, and the simple easy operation of mounting means of clamping piece.

The present invention may be further configured in a preferred embodiment as: and a heat insulation layer is arranged on the surface of the clamping piece.

Through adopting above-mentioned technical scheme, because the heating wire can the heat transfer with the clamping piece contact, and the insulating layer is favorable to making operating personnel when contact clamping piece, is difficult to scald by the clamping piece.

The present invention may be further configured in a preferred embodiment as: one end of the gas collecting pipe, which is far away from the gas inlet, is detachably connected with a liquid water filter element, the liquid water filter element comprises a fixed ring and a water absorption layer, and the fixed ring is in threaded connection with the end part of the gas collecting pipe.

Through adopting above-mentioned technical scheme, in order to avoid containing liquid water in the exhaust duct of the vehicle under test, consequently before the gas collecting pipe that inserts the stoving arrives, earlier install the tip at the gas collecting pipe with liquid water filter element, receive the gas that waits to detect for a period of time earlier, filter the liquid water in the gas earlier this moment, after the liquid water that the vehicle under test was carminative and in the pipeline is clean, take off liquid water filter element, then drying once more is being carried out the gas collecting pipe, last again carried out the gas that vehicle under test exhaust duct discharged and detected, further reduced the possibility that produces the harm to the oil consumption appearance.

The present invention may be further configured in a preferred embodiment as: the liquid water filter element also comprises an absorption tube extending into the gas collecting tube, and one end of the absorption tube is fixedly connected with the fixed ring.

Through adopting above-mentioned technical scheme, because liquid water filter core needs install and dismantle before using the instrument at every turn, and the mode that the retainer plate adopted threaded connection makes the mode of convenient dismantlement and installation simpler and swift.

The present invention may be further configured in a preferred embodiment as: and a damping device is arranged between the fan and the air collecting pipe and between the fan and the frame.

Through adopting above-mentioned technical scheme, damping device is favorable to reducing the damage appearance of placing fan and gas collecting pipe on the frame, is favorable to prolonging the life of instrument.

To sum up, the utility model discloses a following at least one useful technological effect:

1. before the fuel consumption meter is used, gas enters from a gas collecting pipe, then enters into the gas collecting pipe together for a series of detection, and then is exhausted from an exhaust pipe; before the gas collecting tube is used, the switch is turned on, the sliding resistor is adjusted to adjust the temperature of the electric heating wire, and when the sliding resistor is adjusted, the protection element can protect the circuit, so that the electric heating wire is not easy to be heated in China due to overlarge current or voltage, and the tube wall of the gas collecting tube is not easy to damage; in the heating process, the electric heating wire enables the temperature in the gas collecting pipe to rise, so that the evaporation of liquid water in the gas collecting pipe is accelerated, the drying effect is achieved, the electric heating wire wound around the periphery of the gas collecting pipe enables the gas collecting pipe to be heated more comprehensively, the drying effect is improved, and after the drying is completed, the switch is turned off, so that the gas collecting pipe is connected with an exhaust pipeline of the tested vehicle and is detected;

2. the corrugated pipe is beneficial to increasing the heating area of the gas collecting pipe, so that the evaporation of liquid water is facilitated, and the electric heating wire placed at the concave part of the corrugated pipe is not easy to influence the placement of the gas collecting pipe;

3. in order to avoid the exhaust pipeline of the detected vehicle to contain liquid water, before the gas collecting pipe connected with the drying device arrives, the liquid water filter element is firstly installed at the end part of the gas collecting pipe, the gas to be detected is firstly received for a period of time, at the moment, the liquid water in the gas is firstly filtered, when the exhaust gas of the detected vehicle and the liquid water in the pipeline are completely discharged, the liquid water filter element is taken down, then the gas collecting pipe is dried again, and finally the gas discharged from the exhaust pipeline of the detected vehicle is detected, so that the detection precision of the instrument is further improved, and the possibility of generating damage to the oil consumption instrument is reduced.

Drawings

FIG. 1 is a schematic view of the overall structure of the embodiment;

FIG. 2 is a schematic view for showing the internal structure of a flow rate measuring tube;

fig. 3 is a schematic diagram of an explosive structure for showing a gas header;

fig. 4 is a schematic diagram of a control circuit.

Reference numerals: 1. a frame; 2. a fan; 3. a gas collecting pipe; 4. a flow measurement tube; 5. a pressure sensor; 6. a flow sensor; 7. a temperature sensor; 8. an exhaust sampling probe; 9. an exhaust pipe; 10. a drying device; 11. a power source; 12. a switch; 13. a sliding resistor; 14. an electric heating wire; 15. a protective element; 16. an insulating layer; 17. a clamping member; 18. a thermal insulation layer; 19. a liquid water filter element; 20. a stationary ring; 21. a water-absorbing layer; 22. an absorber tube; 23. a shock-absorbing device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 4, for the utility model discloses a carbon balance oil consumption instrument, install the pulley that makes things convenient for frame 1 to remove including the bottom of frame 1 that wholly is quadrangular column form. A fan 2 is installed on one side of the frame 1, a gas collecting pipe 3 is connected to the gas inlet of the fan 2, and a flow measuring pipe 4 is connected to the gas outlet of the fan 2. A damping device 23 is arranged between the fan 2 and the air collecting pipe 3 and the frame 1, and a damping gasket or a damping spring can be adopted as the damping device 23. The damping device 23 is beneficial to reducing the damage instruments of the fan 2 and the air collecting pipe 3 which are placed on the frame 1, and is beneficial to prolonging the service life of the instruments. The flow measuring tube 4 is sequentially provided with a pressure sensor 5, a flow sensor 6, a temperature sensor 7 and an exhaust sampling probe 8 along the gas flowing direction. The other end of the flow measuring tube 4 is connected with an exhaust pipe 9. The fan 2, the pressure sensor 5, the flow sensor 6, the temperature sensor 7 and the exhaust sampling probe 8 are connected with a control unit, and the control unit can adopt a single chip microcomputer.

Referring to fig. 2 and 3, a drying device 10 is disposed on the gas collecting tube 3, the drying device 10 includes a power supply 11, a switch 12, a sliding resistor 13, a heating wire 14, and a protection element 15, which are sequentially connected in series to form a loop, the protection element 15 may be a fuse or an air switch, and the heating wire 14 is wound around the gas collecting tube 3. The switch 12 is manually controlled, the gas collecting pipe 3 is a corrugated pipe, and the heating wire 14 is wound at the outer side concave part of the corrugated pipe in a threaded manner. The corrugated pipe is beneficial to increasing the heating area of the gas collecting pipe 3, thereby being beneficial to the evaporation of liquid water, and the electric heating wire 14 placed at the concave part of the corrugated pipe is not easy to influence the placement of the gas collecting pipe 3. The surface of the heating wire 14 is provided with an insulating layer 16. The insulating layer 16 is beneficial to avoiding electric shock caused by accidental touch of the heating wire 14 by a worker, and has a protection effect. The end of the heating wire 14 is connected to the end of the gas collecting pipe 3 through a clamping member 17, and the clamping member 17 is in a ring-shaped threaded connection with the end of the gas collecting pipe 3. When the clamping member 17 in threaded connection is rotationally fixed, the heating wire 14 can be driven to displace and strain the heating wire 14, so that the heating wire 14 can be fixed conveniently, and the mounting mode of the clamping member 17 is simple and easy to operate. The surface of the clamping piece 17 is provided with a thermally insulating layer 18. The heat transfer is due to the contact of the heating wire 14 with the clamping member 17, while the insulation layer 18 is advantageous in that the operator is not easily scalded by the clamping member 17 when contacting the clamping member 17.

The one end that the gas collecting pipe 3 kept away from the air inlet can be dismantled and be connected with liquid water and filter core 19, and liquid water filters core 19 and includes retainer plate 20 and layer 21 that absorbs water, and retainer plate 20 threaded connection is at the tip of gas collecting pipe 3. The liquid water filter element 19 further comprises an absorption tube 22 extending into the gas collecting tube 3, and one end of the absorption tube 22 is fixedly connected with the fixing ring 20. Since the liquid water filter element 19 needs to be assembled and disassembled before the instrument is used, the fixing ring 20 is screwed, so that the convenient disassembly and assembly are simpler and quicker.

The implementation principle of the embodiment is as follows: before the fuel consumption meter is used, gas enters the gas collecting pipe 3, then enters the gas collecting pipe together for a series of tests, and then is exhausted through the exhaust pipe 9. Therefore, before use, the switch 12 is first turned on, and the sliding resistance 13 is adjusted to adjust the temperature of the heating wire 14. When adjusting the sliding resistor 13, the protection element 15 can protect the circuit, so that the heating wire 14 is not easily heated at home due to excessive current or voltage, and the wall of the gas collecting tube 3 is not easily damaged. In the heating process, the electric heating wire 14 raises the temperature in the gas collecting pipe 3, so that the evaporation of liquid water in the gas collecting pipe 3 is accelerated, and the drying effect is achieved. The electric heating wire 14 wound around the periphery of the gas collecting pipe 3 enables the gas collecting pipe 3 to be heated more comprehensively, and the drying effect is improved. After drying, the switch 12 is closed, and the gas collecting pipe 3 is connected with the exhaust pipeline of the vehicle to be detected and detected. In addition, in order to avoid the exhaust pipe 9 of the tested vehicle containing liquid water, before the dried gas collecting pipe 3 is connected, the liquid water filter element 19 is firstly installed at the end part of the gas collecting pipe 3. Firstly, the gas to be detected is received in the gas collecting pipe 3 for a period of time, and at the moment, liquid water in the gas is firstly filtered. When the liquid water in the exhaust gas and the pipeline of the tested vehicle is drained completely, the liquid water filter element 19 is removed. Then, the gas collecting pipe 3 is dried again, and finally, the gas discharged from the exhaust pipe 9 of the vehicle to be detected is detected, so that the detection precision of the instrument is improved, and the possibility of damage to the oil consumption instrument is further reduced.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a balanced oil consumption appearance of carbon, includes frame (1), fixedly connected with fan (2) is gone up in frame (1), the air inlet fixedly connected with discharge tube (3) of fan (2), air outlet fixedly connected with flow measurement pipe (4) of fan (2), pressure sensor (5), flow sensor (6), temperature sensor (7) and exhaust sampling probe (8) have set gradually along the gas flow direction on the flow measurement pipe (4), the other end fixedly connected with blast pipe (9) of flow measurement pipe (4), fan (2), pressure sensor (5), flow sensor (6), temperature sensor (7) and exhaust sampling probe (8) are connected with the control unit, its characterized in that: the drying device (10) is fixedly connected to the gas collecting pipe (3), the drying device (10) comprises a power supply (11), a switch (12), a sliding resistor (13), an electric heating wire (14) and a protection element (15), wherein the power supply, the switch (12), the sliding resistor (13), the electric heating wire (14) and the protection element are sequentially connected in series to form a loop, and the electric heating wire (14) is wound on the periphery of the gas collecting pipe (3).

2. The carbon fuel consumption balance instrument according to claim 1, wherein: the gas collecting pipe (3) is a corrugated pipe, and the heating wire (14) is wound at the outer side concave part of the corrugated pipe in a threaded manner.

3. The carbon fuel consumption balance instrument according to claim 1, wherein: an insulating layer (16) is arranged on the surface of the electric heating wire (14).

4. The carbon fuel consumption balance instrument according to claim 1, wherein: the end part of the electric heating wire (14) is connected to the end part of the gas collecting pipe (3) through a clamping piece (17), and the clamping piece (17) is in annular threaded connection with the end part of the gas collecting pipe (3).

5. The carbon fuel consumption balance instrument according to claim 4, wherein: the surface of the clamping piece (17) is provided with a heat insulation layer (18).

6. The carbon fuel consumption balance instrument according to claim 1, wherein: one end, far away from the air inlet, of the gas collecting pipe (3) is detachably connected with a liquid water filter element (19), the liquid water filter element (19) comprises a fixing ring (20) and a water absorption layer (21), and the fixing ring (20) is in threaded connection with the end of the gas collecting pipe (3).

7. The carbon fuel consumption balance instrument according to claim 6, wherein: the liquid water filter element (19) further comprises an absorption tube (22) extending into the gas collecting tube (3), and one end of the absorption tube (22) is fixedly connected with the fixing ring (20).

8. The carbon fuel consumption balance instrument according to claim 1, wherein: and a damping device (23) is arranged between the fan (2) and the gas collecting pipe (3) and the frame (1).