CN202304902U - Device for measuring air intake flow rate of diesel engine - Google Patents
Device for measuring air intake flow rate of diesel engine Download PDFInfo
- Publication number
- CN202304902U CN202304902U CN 201120355970 CN201120355970U CN202304902U CN 202304902 U CN202304902 U CN 202304902U CN 201120355970 CN201120355970 CN 201120355970 CN 201120355970 U CN201120355970 U CN 201120355970U CN 202304902 U CN202304902 U CN 202304902U
- Authority
- CN
- China
- Prior art keywords
- pipe
- diesel engine
- pressure
- intake flow
- joint flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a device for measuring the air intake flow rate of a diesel engine, which comprises a connecting pipe, a flow meter inlet pipe and a pressure detection mechanism, wherein at least one detection hole is arranged at the outer circumference of the flow meter inlet pipe; the detection hole is communicated with the flow meter inlet pipe; and the pressure detection mechanism is connected with the detection hole. The detection hole communicated with the flow meter inlet pipe is arranged at the outer circumference of the flow meter inlet pipe, the pressure of the detection hole is detected by the pressure detection mechanism, and the flow rate flowing through the flow meter inlet pipe can be calculated according to the related calculation formula; the device is simple in structure and lower in cost; meanwhile, a plurality of detection holes can be arranged at the outer circumference of the flow meter inlet pipe, the pressure detection mechanism can be used for detecting the pressure of all the detection holes, and the average value of the pressure is worked out and then is introduced into the calculation for the flow rate, so that the accuracy of the device for measuring the air intake flow rate of the diesel engine can be improved.
Description
Technical field
The utility model relates to a kind of flow detector, particularly is a kind of diesel engine intake flow measurement device.
Background technology
Usually, differential pressure generating-nozzle flowmeter is adopted in the measurement of fluid flow in the pipeline, the pressure transmitter of working poor is accomplished.During throttling element in ducted fluid is flowed through nozzle flowmeter, can form local contraction, before and after throttling element, form pressure differential; Fluid flow is big more; The pressure differential that forms at throttling element is just big more, therefore, can weigh the size of fluid flow through measure differences in pressure.
The diesel engine intake flow detector comprises long-neck nozzle orifice plate flowmeter and parametric difference pressure transmitter.Air gets into the diesel engine pneumatic plant through orifice flowmeter, and in orifice flowmeter, forms pressure differential, and differential pressure transmitter writes down pressure differential, calculates the flow of air then through correlation computations.But for high-power supercharged diesel engine, its airshed is bigger, uses orifice flowmeter can influence the accuracy of reading of data, and is not easy to install.
The utility model content
The purpose of the utility model be to provide a kind of simple in structure, cost is low and data read quick and accurate diesel engine intake flow monitoring device.
For achieving the above object, the technical scheme of the utility model is following: a kind of diesel engine intake flow measurement device, this device comprise connecting pipe, flowmeter induction pipe, pressure detection mechanism; The two ends of said connecting pipe are fixed with joint flange; The joint flange of connecting pipe one end connects compressor inlet, and the joint flange of the other end connects the flowmeter induction pipe, and the excircle of flowmeter induction pipe is provided with at least one and detects mouth; Detect mouth and be communicated with the flowmeter induction pipe, pressure detection mechanism connects detects mouth.
The remarkable result of the utility model is: owing on the excircle of flowmeter induction pipe, be provided with the detection mouth that communicates with the flowmeter induction pipe; Pressure detection mechanism is detected the pressure that detects mouth; And according to the flow of correlation computations formula calculated flow inflow-rate of water turbine meter induction pipe, its project organization is simple, cost is lower; Simultaneously; A plurality of detections mouths can be set on the excircle of flowmeter induction pipe, and pressure detection mechanism is detected the pressure that each detects mouth, and calculates pressure mean values; Introduce calculating then, improve the accuracy of diesel engine intake flow measurement device mass rate and volumetric flow rate.
Description of drawings
Fig. 1 is the assembling synoptic diagram of the utility model;
Fig. 2 is the measurement structure synoptic diagram of embodiment 1;
Fig. 3 is the A-A cut-open view of embodiment 1;
Fig. 4 is the measurement structure synoptic diagram of embodiment 2;
Fig. 5 is the A-A cut-open view of embodiment 2;
Fig. 6 is the measurement structure synoptic diagram of embodiment 3;
Fig. 7 is the A-A cut-open view of embodiment 3.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 1, a kind of diesel engine intake flow measurement device comprises connecting pipe 5, flowmeter induction pipe 1, pressure detection mechanism; Wherein, connecting pipe 5 is horn-like, the termination joint flange 4 that diameter is bigger; The other end connects flange 6 in succession, and being convenient to air can flow into measurement mechanism swimmingly, in following examples; Joint flange 4 and joint flange 6 are welded on the two ends of connecting pipe 5, and as preferably, joint flange 6 links to each other with compressor inlet through some bolts 8; Joint flange 4 links to each other with flowmeter induction pipe 1 through some screws 3, is convenient to the installation and removal of measurement mechanism, increases the dirigibility of measurement mechanism; Simultaneously; Be provided with sealing gasket 7 between joint flange 6 and the compressor inlet end face; Be provided with sealing gasket 2 between the end face of joint flange 4 and flowmeter induction pipe 1; Sealing gasket 2 and sealing gasket 7 are respectively applied for gap between joint flange 4 and the flowmeter induction pipe end face and the gap between joint flange 6 and the compressor inlet end face are sealed, and improve the impermeability of measurement mechanism, guarantee the measurement mechanism measurement data accurately and reliably.
Embodiment 1: like Fig. 2, shown in 3, pressure detection mechanism comprises fittings body 11, flexible pipe 21, pressure gauge 41, and wherein, flexible pipe 21 adopts rubber hose, and a termination of fittings body 11 detects mouth 101, and the other end links to each other with pressure gauge 41 through flexible pipe 21.Air in the flowmeter induction pipe 1 gets into flexible pipes 21 through detecting mouthfuls 101, and the water column that drives in the flexible pipe 21 is reciprocating, pressure gauge 41 its force value of record, the flow of air in according to the rules the computing formula calculated flow rate meter induction pipe 1 then.
Embodiment 2: the excircle like Fig. 4, the induction pipe of flowmeter shown in 51 is provided with two detection mouths 101; Pressure detection mechanism comprises fittings body 11, fittings body 12; Flexible pipe 21 and flexible pipe 22, three-way pipe 31, pressure gauge 41, wherein, a termination of fittings body 11 detects mouth 101; The other end connects one of them interface of three-way pipe 31 through flexible pipe 21; One termination of fittings body 12 detects mouth 102, and the other end is through connecing one of them interface of three-way pipe 31 through flexible pipe 21, and another interface of three-way pipe 31 connects pressure gauge 41.Air in the flowmeter induction pipe 1 is through detection mouth 101 and detect mouthful 102 entering flexible pipes 21 and 22; Flexible pipe 21 is communicated with and forms U type pipe with flexible pipe 22 through three-way pipe 31; The integrated value of water column pressures in pressure gauge 41 record flexible pipes 21 and the flexible pipe 22, the flow of air in according to the rules the computing formula calculated flow rate meter induction pipe 1 then.
Embodiment 3: like Fig. 6, shown in 7, be evenly equipped with 4 on the excircle of flowmeter induction pipe 1 and detect mouthfuls 101～104, pressure detection mechanism comprises four fittings bodies 11～14, four flexible pipes 21～24, two three-way pipes 31,32; Two pressure gauges 41,42; Wherein, a termination of fittings body 11 detects mouth 101, and the other end connects one of them interface of three-way pipe 31 through flexible pipe 21; One termination of fittings body 12 detects mouth 102; The other end is through connecing one of them interface of three-way pipe 31 through flexible pipe 21, another interface of three-way pipe 31 connects pressure gauge 41, and flexible pipe 21 is communicated with and forms U type pipe with flexible pipe 22 through three-way pipe 31; Air in the flowmeter induction pipe 1 is through detection mouthful 101 and 102 entering U type pipes, the integrated value of pressure gauge 41 record flexible pipes 21 and flexible pipe 22 interior water column pressures; One termination of fittings body 13 detects mouth 103; The other end connects one of them interface of three-way pipe 32 through flexible pipe 23; One termination of fittings body 14 detects mouth 104, and the other end is through connecing one of them interface of three-way pipe 32 through flexible pipe 24, and another interface of three-way pipe 32 connects pressure gauge 42; Flexible pipe 23 is communicated with and forms U type pipe with flexible pipe 24 through three-way pipe 32; Air in the flowmeter induction pipe 1 is through detection mouth 103 and 104 entering U type pipes, and the integrated value of pressure gauge 42 record flexible pipes 23 and flexible pipe 24 interior water column pressures is got the mean value that pressure gauge 41 and pressure gauge 42 write down numerical value then; Should be worth again and introduce computing formula, calculate the flow of the air in the flowmeter induction pipe 1.
Claims (7)
1. diesel engine intake flow measurement device; It is characterized in that: this device comprises connecting pipe (5), flowmeter induction pipe (1), pressure detection mechanism, and the two ends of said connecting pipe (5) are fixed with joint flange (4) and joint flange (6), and joint flange (6) connects compressor inlet; Joint flange (4) connects flowmeter induction pipe (1); The excircle of flowmeter induction pipe (1) is provided with at least one detection mouth, detects mouth and is communicated with flowmeter induction pipe (1), and pressure detection mechanism connects detects mouth.
2. diesel engine intake flow measurement device according to claim 1; It is characterized in that: said pressure detection mechanism comprises fittings body (11), flexible pipe (21), pressure gauge (41); One termination of said fittings body (11) detects mouthful (101), and the other end links to each other with pressure gauge (41) through flexible pipe (21).
3. diesel engine intake flow measurement device according to claim 1; It is characterized in that: the excircle of said flowmeter induction pipe (1) is provided with two and detects mouthful (101); Pressure detection mechanism comprises two fittings bodies (11,12), two flexible pipes (21,22), three-way pipe (31), pressure gauge (41), and wherein, a termination of fittings body (11) detects mouthful (101); The other end connects one of them interface of three-way pipe (31) through flexible pipe (21); One termination of fittings body (12) detects mouthful (102), and the other end is through connecing one of them interface of three-way pipe (31) through flexible pipe (21), and another interface of three-way pipe (31) connects pressure gauge (41).
4. diesel engine intake flow measurement device according to claim 1; It is characterized in that: be evenly equipped with four on the excircle of said flowmeter induction pipe (1) and detect mouthful (101～104), pressure detection mechanism comprises four fittings bodies (11～14), four flexible pipes (21～24), two three-way pipes (31,32), two pressure gauges (41,42); Wherein, One termination of fittings body (11) detects mouthful (101), and the other end connects one of them interface of three-way pipe (31) through flexible pipe (21), and a termination of fittings body (12) detects mouth (102); The other end is through connecing one of them interface of three-way pipe (31) through flexible pipe (21), another interface of three-way pipe (31) connects pressure gauge (41); One termination of fittings body (13) detects mouthful (103); The other end connects one of them interface of three-way pipe (32) through flexible pipe (23); One termination of fittings body (14) detects mouthful (104); The other end is through connecing one of them interface of three-way pipe (32) through flexible pipe (24), another interface of three-way pipe (32) connects pressure gauge (42).
5. diesel engine intake flow measurement device according to claim 1 is characterized in that: be provided with sealing gasket (7) between said joint flange (6) and the compressor inlet, joint flange (6) links to each other with compressor inlet through bolt (8).
6. diesel engine intake flow measurement device according to claim 1 is characterized in that: be provided with sealing gasket (2) between said joint flange (4) and the flowmeter induction pipe (1), and joint flange (4) links to each other with flowmeter induction pipe (1) through screw (3).
7. diesel engine intake flow measurement device according to claim 1 is characterized in that: said connecting pipe (5) is horn-like.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120355970 CN202304902U (en) | 2011-09-21 | 2011-09-21 | Device for measuring air intake flow rate of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120355970 CN202304902U (en) | 2011-09-21 | 2011-09-21 | Device for measuring air intake flow rate of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202304902U true CN202304902U (en) | 2012-07-04 |
Family
ID=46373779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120355970 Expired - Fee Related CN202304902U (en) | 2011-09-21 | 2011-09-21 | Device for measuring air intake flow rate of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202304902U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547381A (en) * | 2015-12-25 | 2016-05-04 | 潍柴动力股份有限公司 | Device for measuring air intake flow of engine |
| CN110389037A (en) * | 2019-07-23 | 2019-10-29 | 哈尔滨工程大学 | A kind of diesel engine intake system for measuring quantity |
-
2011
- 2011-09-21 CN CN 201120355970 patent/CN202304902U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547381A (en) * | 2015-12-25 | 2016-05-04 | 潍柴动力股份有限公司 | Device for measuring air intake flow of engine |
| CN110389037A (en) * | 2019-07-23 | 2019-10-29 | 哈尔滨工程大学 | A kind of diesel engine intake system for measuring quantity |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203745051U (en) | Two-position one-way reversing valve type pVTt-method gas flow device | |
| CN201225920Y (en) | Gas flow standard device combining acoustic speed nozzle method and standard table method | |
| CN205067153U (en) | Water environmental detection set | |
| CN211927034U (en) | Liquid flowmeter calibrating device | |
| CN2935096Y (en) | Integrated differential pressure flowmeter | |
| CN202304902U (en) | Device for measuring air intake flow rate of diesel engine | |
| CN203585695U (en) | Wind pipe assembly and pressure measuring device thereof | |
| CN205424434U (en) | Oil gas pipeline that can fix a position leaks alarm | |
| CN1936506A (en) | Small section branch-flow measuring method for large-diameter gas flow and apparatus thereof | |
| CN111458267A (en) | Testing device and testing method for resistance reduction performance of super-hydrophobic surface | |
| CN205670004U (en) | A kind of water-pipe type settlement instrument | |
| CN201181224Y (en) | Bypass type pipeline flowmeter | |
| CN103837215A (en) | Reversing valve type pVTt-method gas flow device | |
| CN101251397A (en) | By-pass type pipeline flowmeter | |
| CN217716887U (en) | Test bench for detecting oil circuit system | |
| CN2884151Y (en) | Multiple measuring rod secondary equalized pressure type equal speed tube flow-rate sensor | |
| CN203083885U (en) | Novel outside-measuring-method hydrostatic test device | |
| CN108051350A (en) | A kind of porous material testing permeability device and test method | |
| CN213299632U (en) | High-precision alarm device for leakage of water supply pipeline | |
| CN114993395A (en) | Detachable ultrasonic flowmeter pipeline and transducer mounting structure | |
| CN202066533U (en) | Online fan flow detection device of uniform celerity tube | |
| CN2562169Y (en) | Multi-point bound pitot tube measuring device | |
| CN219736457U (en) | Inserted pipeline center measuring flow Li Tuoba sensor | |
| CN201083558Y (en) | Thermal energy meter | |
| CN220957968U (en) | Collecting pipe for pressure test of gas-liquid separator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20150921 |
|
| EXPY | Termination of patent right or utility model |