Condensing device of engine air leakage detector

Abstract

The utility model belongs to the technical field of engine system testing, and discloses an engine air leakage detector condensing device which comprises a condensing tank, a sampling pipeline connected with the condensing tank and an engine crankcase, a measuring pipeline connected with the condensing tank and an air leakage detector body and a spraying assembly. The moisture absorption body is used for reducing the tank wall temperature of the condensation tank, and the spraying assembly is used for continuously pouring cooling water to the moisture absorption body. According to the condensing device of the engine gas leakage detector, the moisture absorption body is arranged outside the condensing tank, and the spraying assembly is adopted to continuously pour cooling water to the moisture absorption body, so that the condensing tank is kept at a low temperature, hot crankcase gas is condensed more quickly when passing through the condensing tank, the water removal efficiency of the condensing tank is improved, and the working efficiency of the condensing tank is improved. The influence of the condensate water on a subsequent measurement pipeline is reduced, the problem of fluctuation of a measurement value is solved, and the accuracy of a measurement result is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to engine system test technical field especially relates to a kind of engine air leakage detector condensing device. BACKGROUND

[0002] In engine laboratory, in order to evaluate and improve the performance and reliability of engine, the integrated test of each component of engine is needed. Among them, measuring crankcase air leakage is an important index. Engine needs to measure the crankcase air leakage continuously during test period, because the air leakage of large displacement engine is large and the gas flow is fast during operation, the conventional air leakage measuring equipment with glass tank condenser is not enough to condense all water vapor in gas to condenser, and the excess water vapor is easy to recondense in the lowest point of measuring pipeline after flowing through subsequent measuring pipeline, which causes the obstruction of subsequent gas flow and affects the accuracy of measurement results. SUMMARY

[0003] Based on the above problems, the utility model aims at providing a kind of engine air leakage detector condensing device, improve the efficiency of crankcase gas condensation and water removal, and avoid the condensate water gathering in subsequent measuring pipeline to cause measurement value fluctuation.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A kind of engine air leakage detector condensing device, it includes condenser, the sampling pipeline connected with the condenser and the engine crankcase, the measuring pipeline connected with the condenser and air leakage detector main body and spray assembly, the outer surface of condenser is provided with hygroscopic body, hygroscopic body is used to reduce the temperature of condenser wall, spray assembly is used to continuously irrigate cooling water to hygroscopic body.

[0006] As an optional scheme, sampling pipeline is connected to the side top of condenser, measuring pipeline is connected to the bottom of condenser, and the gas in sampling pipeline enters measuring pipeline in the form of spiral sediment after entering condenser.

[0007] As an optional scheme, air leakage detector main body includes measuring part and iron lung part, the gas in measuring pipeline is fully mixed after passing through iron lung part, and then enters measuring part for detection.

[0008] As an optional scheme, iron lung part is provided with two, two iron lung parts are distributed on the two sides of condenser, measuring part is located at the top of condenser, and the gas after detection in measuring part is fully mixed in another iron lung part and then returned to engine crankcase.

[0009] As an optional scheme, hygroscopic body includes several layers of cotton gauze wrapped on condenser.

[0010] As an alternative, the spraying assembly comprises a plurality of nozzles evenly distributed around the circumference of the moisture-absorbing body, each nozzle being located at the top of the side of the moisture-absorbing body and facing the surface of the moisture-absorbing body.

[0011] As an alternative, the spraying assembly comprises a spraying head located directly above the condensing tank, the outer edge of the spraying head being evenly provided with a plurality of water outlets, and the outer edge of the spraying head having the same size as the outer diameter of the moisture-absorbing body.

[0012] As an alternative, a water receiving bucket is arranged below the condensing tank, the water receiving bucket being used to receive the cooling water dripping from the moisture-absorbing body.

[0013] As an alternative, the surface of the sampling pipeline and the surface of the measuring pipeline are both provided with a heat insulation layer.

[0014] The engine air leakage detector condensing device has the advantages that: the moisture-absorbing body is arranged outside the condensing tank, and the spraying assembly is used to continuously irrigate the moisture-absorbing body with cooling water, so that the condensing tank can maintain a low temperature, and the hot crankcase gas can be condensed more quickly when passing through the condensing tank, the water removal efficiency of the condensing tank is improved, the influence of the condensing water on the subsequent measuring pipeline is reduced, the problem of fluctuation of the measured value is solved, and the accuracy of the measurement result is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic view of the engine air leakage detector condensing device provided by the embodiment of the utility model.

[0016] In the drawings:

[0017] 1, condensing tank; 2, sampling pipeline; 3, air leakage detector main body; 31, measuring part; 32, iron lung part; 4, measuring pipeline; 5, spraying assembly; 6, moisture-absorbing body; 7, water receiving bucket. DETAILED DESCRIPTION

[0018] The utility model will be further described in detail in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model, and not limited to the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0019] In the description of the utility model, unless another definite provision and limitation, the term "link", "connect", "fix" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's interaction relationship.For the ordinary skill in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0020] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional feature between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0021] In the description of the embodiment, the terms "on", "under", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawing, just for the convenience of description and simplification of operation, and not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are just used to distinguish in the description, and have no special meaning.

[0022] Please refer to Figure 1 As shown in the preferred embodiment provides a kind of engine air leakage detector condensing device, including condensing tank 1, connecting condensing tank 1 and engine crankcase sampling pipeline 2, connecting condensing tank 1 and air leakage detector main body 3 measuring pipeline 4 and spray assembly 5, wherein, the outer surface of condensing tank 1 is provided with hygroscopic body 6, hygroscopic body 6 is used to reduce the tank wall temperature of condensing tank 1, spray assembly 5 is used to continuously irrigate cooling water to hygroscopic body 6.

[0023] Therefore, by setting up hygroscopic body 6 outside condensing tank 1, and using spray assembly 5 to continuously irrigate cooling water to hygroscopic body 6, condensing tank 1 is kept at a lower temperature, and then the hot crankcase gas is condensed faster when passing through condensing tank 1, the water removal efficiency of condensing tank 1 is improved, the influence of condensing water on subsequent measuring pipeline 4 is reduced, the problem of measurement value fluctuation is solved, and the accuracy of measurement results is improved.

[0024] Optionally, the sampling pipeline 2 is connected to the side top of the condensing tank 1, and the measuring pipeline 4 is connected to the bottom of the condensing tank 1, and the gas in the sampling pipeline 2 enters the measuring pipeline 4 in a spiral settling manner after entering the condensing tank 1.

[0025] The spiral settling section can ensure sufficient heat exchange between the gas and the cooling water, and the rising section can guide the newly formed condensed water to the condensing tank 1, thereby avoiding the accumulation of condensed water in the measuring pipeline 4 and further ensuring the stability of the measurement results.

[0026] Optionally, the air leakage detector main body 3 includes a measuring part 31 and an iron lung part 32, and the gas in the measuring pipeline 4 is fully mixed through the iron lung part 32 before entering the measuring part 31 for detection, thereby improving the accuracy of the measurement results.

[0027] Optionally, two iron lung parts 32 are arranged on both sides of the condensing tank 1, and the measuring part 31 is arranged at the top of the condensing tank 1, and the gas after being detected by the measuring part 31 is fully mixed in the other iron lung part 32 before being returned to the engine crankcase.

[0028] Specifically, the moisture absorbing body 6 includes several layers of cotton gauze wrapped around the condensing tank 1, but is not limited to this material. The cotton gauze that absorbs the cooling water can keep the tank wall of the condensing tank 1 at a lower temperature and timely remove the heat generated by the heat exchange of the internal gas.

[0029] Optionally, the spraying assembly 5 includes several nozzles uniformly distributed around the circumference of the moisture absorbing body 6, and each nozzle is located at the side top of the moisture absorbing body 6 and faces the surface of the moisture absorbing body 6, so as to constantly spray the top of the moisture absorbing body 6, and the entire moisture absorbing body 6 is kept wet by gravity.

[0030] Alternatively, the spraying assembly 5 includes a shower head located directly above the condensing tank 1, the outer edge of the shower head is uniformly provided with several water outlets, and the outer edge size of the shower head is consistent with the outer diameter of the moisture absorbing body 6. The water outlets of the shower head continuously drip water to wet the entire moisture absorbing body 6.

[0031] Further, a water collecting bucket 7 is arranged below the condensing tank 1, and the water collecting bucket 7 is used to collect the cooling water dripping from the moisture absorbing body 6.

[0032] Optionally, the surfaces of the sampling pipeline 2 and the measuring pipeline 4 are provided with a heat preservation and insulation layer, such as heat preservation cotton, foaming material, etc., so that the internal gas no longer exchanges heat with the outside, thereby avoiding the formation of condensed water again and affecting the subsequent measurement.

[0033] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A condensing device for an engine leak detector, characterized in that, The application relates to a condensing tank (1), a sampling pipeline (2) connecting the condensing tank (1) with an engine crankcase, a measuring pipeline (4) connecting the condensing tank (1) with an exhaust gas detection instrument main body (3) and a spraying assembly (5), wherein the outer surface of the condensing tank (1) is provided with a moisture absorbing body (6) for reducing the tank wall temperature of the condensing tank (1), and the spraying assembly (5) is used for continuously irrigating the moisture absorbing body (6) with cooling water.

2. The engine leak detector condensing device of claim 1, wherein, The sampling pipeline (2) is connected to the top side of the condensing tank (1), and the measuring pipeline (4) is connected to the bottom of the condensing tank (1), and the gas in the sampling pipeline (2) enters the measuring pipeline (4) in a spiral sedimentation mode after entering the condensing tank (1).

3. The engine leak detector condensing device of claim 1, wherein, The exhaust gas detection instrument main body (3) comprises a measuring part (31) and an iron lung part (32), and the gas in the measuring pipeline (4) is fully mixed in the iron lung part (32) and then enters the measuring part (31) for detection.

4. The engine leak detector condensing device of claim 3, wherein, The iron lung part (32) is provided with two iron lung parts (32) distributed on the two sides of the condensing tank (1), the measuring part (31) is located on the top of the condensing tank (1), and the gas detected by the measuring part (31) is fully mixed in the other iron lung part (32) and then returned to the engine crankcase.

5. The engine leak detector condensing device of claim 1, wherein, The moisture absorbing body (6) comprises several layers of cotton gauze wrapped on the condensing tank (1).

6. The engine leak detector condensing device of claim 1, wherein, The spraying assembly (5) comprises several nozzles uniformly distributed around the circumference of the moisture absorbing body (6), and each nozzle is located on the top side of the moisture absorbing body (6) and faces the surface of the moisture absorbing body (6).

7. The engine leak detector condensing device of claim 1, wherein, The spraying assembly (5) comprises a spraying head located directly above the condensing tank (1), the outer edge of the spraying head is uniformly provided with several water outlets, and the outer edge size of the spraying head is consistent with the outer diameter of the moisture absorbing body (6).

8. The engine leak detector condensing device of claim 1, wherein, A water receiving bucket (7) is arranged below the condensing tank (1), and the water receiving bucket (7) is used for containing the cooling water dripping from the moisture absorbing body (6).

9. The engine leak detector condensing device of claim 1, wherein, The surfaces of the sampling pipeline (2) and the measuring pipeline (4) are provided with heat preservation and insulation layers.

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