CN207036397U - Test the experimental rig of low-temperature spray nozzle flow - Google Patents
Test the experimental rig of low-temperature spray nozzle flow Download PDFInfo
- Publication number
- CN207036397U CN207036397U CN201720688281.3U CN201720688281U CN207036397U CN 207036397 U CN207036397 U CN 207036397U CN 201720688281 U CN201720688281 U CN 201720688281U CN 207036397 U CN207036397 U CN 207036397U
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- China
- Prior art keywords
- nozzle
- liquid nitrogen
- tank
- regulating valve
- low temperature
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Abstract
A kind of experimental rig for testing low-temperature spray nozzle flow, it includes liquid nitrogen storage, low temperature liquid nitrogen pump, knockout drum, it is built-in with the nozzle tank of nozzle to be measured, regulating valve, pressure sensor, temperature sensor and flowmeter, described liquid nitrogen storage is connected to knockout drum by cryogenic piping through liquid nitrogen pump, the top of described knockout drum is by low temperature tracheae through the second regulating valve reversal connection in liquid nitrogen storage, bottom is connected to the nozzle in nozzle tank by low temperature liquid pipe, the heat tape of increase cryogenic liquid vaporizer is wound with the outside of the nozzle tank, and in vertical nozzle tank, nozzle sets temperature sensor respectively on different height up and down；The tank skin of the nozzle tank by generating tube after the 4th regulating valve reversal connection in liquid nitrogen storage, the first regulating valve is separately serially connected with the cryogenic piping before liquid nitrogen pump, the 3rd regulating valve and turbine meter are serially connected with the low temperature liquid pipe between knockout drum and nozzle tank；The features such as it has structure composition reasonable, and use is easy to operate, and measurement accuracy is high, pressure stability.
Description
Technical field
The utility model is related to it is a kind of test low-temperature spray nozzle flow experimental rig, especially a kind of low temperature liquid nitrogen it is small
The device for testing flow of hole nozzle part, belong to cryogenic media device for testing flow technical field.
Background technology
Existing nozzle flow tester, without reference to the experiment that nozzle flow is made of cryogenic media.Because low temperature is situated between
Easily vaporization forms gas-liquid two-phase when matter is tested, and the pressure of gas-liquid two-phase is difficult to stability contorting.Meanwhile the lower temperature resistance of experimental rig
The problem of and needing to consider.
The content of the invention
The purpose of this utility model is to overcome the shortcomings of the prior art, and it is reasonable to provide a kind of structure composition, makes
With easy to operate, measurement accuracy height, the low temperature liquid nitrogen nozzle tester of pressure stability.
The purpose of this utility model is completed by following technical solution, a kind of experiment for testing low-temperature spray nozzle flow
Device, it includes liquid nitrogen storage, low temperature liquid nitrogen pump, knockout drum, the nozzle tank for being built-in with nozzle to be measured, regulating valve, pressure
Sensor, temperature sensor and flowmeter, described liquid nitrogen storage are connected to gas-liquid separation by cryogenic piping through liquid nitrogen pump
Tank, the top of described knockout drum passes through low through the second regulating valve reversal connection by low temperature tracheae in liquid nitrogen storage, bottom
Warm liquid pipe is connected to the nozzle in nozzle tank, and the heat tape of increase cryogenic liquid vaporizer is wound with the outside of the nozzle tank, and
Temperature sensor is set respectively on different height in vertical nozzle tank, above and below nozzle；
Reversal connection is in liquid nitrogen storage after the 4th regulating valve by generating tube for the tank skin of the nozzle tank, separately before liquid nitrogen pump
The first regulating valve is serially connected with cryogenic piping, the 3rd regulation is serially connected with the low temperature liquid pipe between knockout drum and nozzle tank
Valve and turbine meter；
Pressure sensor and temperature sensor are separately installed with the front and rear pipes of the liquid nitrogen pump, before the nozzle tank
Pressure sensor and temperature sensor are separately installed with low temperature liquid pipe, and pressure sensing is installed on the knockout drum
Device；Described four regulating valves, a turbine meter and pressure sensor and temperature sensor connect external respectively
Plc data acquisition system.
As preferred：Described low temperature liquid nitrogen pump is configured with the frequency converter for adjusting revolution speed, described plc data acquisition system
By being pressed before and after the data collecting system for gathering measured point parameter Real-time Feedback and the action for controlling to adjust valve, regulation and stabilized nozzle
The PLC control system of power is formed, prison of the described plc data acquisition system to different height point temperature above and below nozzle tank inner nozzle
Survey and control the vaporization of heat tape increase nozzle pot liquid, gas phase ring is sprayed onto so as to measure tested nozzle cryogenic liquid medium
The discharge coefficient in border, described PLC control system connection computer are simultaneously realized the data feedback collected to computer automatic
Control.
The utility model belongs to be improved to one kind of prior art, can be tested cryogenic media, be added PLC control system
The forward and backward pressure of nozzle is automatically controlled, the heat tape for adding nozzle tank outer ring improves the vaporization capacity of nozzle tank liquid nitrogen, perpendicular
Different height is respectively equipped with temperature sensor to ensure that nozzle is in gaseous environment to straight nozzle tank inner nozzle up and down；It has structure
The features such as composition is reasonable, and use is easy to operate, and measurement accuracy is high, pressure stability.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Label is in Fig. 1：C1- knockout drums, C2- nozzle tanks, FI1- flowmeters, V1- low temperature regulating valves, V2- low temperature
Regulating valve, V3- low temperature regulating valves, V4- low temperature regulating valves, PI1- pump inlet pressure, PI2- pump discharge pressures, PI3- gas-liquid separations
Pressure tank, pressure before PI4- nozzles, PI5- nozzle pressure tanks, TE1- pump inlet temperature, TE2- pump discharge temperature, before TE3- nozzles
Temperature, measuring point temperature on TE4- nozzle tanks, measuring point temperature in TE5- nozzle tanks, measuring point temperature under TE6- nozzle tanks.
Embodiment
The utility model is described in detail below in conjunction with accompanying drawing:Shown in Fig. 1, one kind test low-temperature spray nozzle flow
Experimental rig, it include liquid nitrogen storage, low temperature liquid nitrogen pump P1, knockout drum C1, the nozzle tank for being built-in with nozzle 1 to be measured
C2, regulating valve, pressure sensor, temperature sensor and flowmeter, described liquid nitrogen storage is by cryogenic piping 2 through liquid nitrogen pump
P1 is connected to knockout drum C1, described knockout drum C1 top by low temperature tracheae 3 through the second regulating valve V2 reversal connections
In liquid nitrogen storage, bottom is connected to the nozzle 1 in nozzle tank C2 by low temperature liquid pipe 4, is wound with the outside of the nozzle tank C2
Increase the heat tape 5 of cryogenic liquid vaporizer, and set temperature to pass respectively on different height in vertical nozzle tank, above and below nozzle
Sensor TE4, TE5, TE6；
Reversal connection is in liquid nitrogen storage after the 4th regulating valve V4 by generating tube 6 for the tank skin of the nozzle tank C2, separately in liquid nitrogen
The first regulating valve V1 is serially connected with cryogenic piping 2 before pump P1, the low temperature liquid pipe 4 between knockout drum C1 and nozzle tank C2
On be serially connected with the 3rd regulating valve V3 and turbine meter FI1；
Be separately installed with the front and rear pipes of the liquid nitrogen pump P1 pressure sensor PI1, PI2 and temperature sensor TE1,
Pressure sensor PI4 and temperature sensor TE3 are separately installed with low temperature liquid pipe 4 before TE2, the nozzle tank C2, and in institute
State and pressure sensor PI3 is installed on knockout drum C1；Described four regulating valve V1-V4, a turbine meter FI1
And pressure sensor PI1-PI4 and temperature sensor TE1-TE6 connect external plc data acquisition system respectively.
Shown in figure, described low temperature liquid nitrogen pump P1 is configured with the frequency converter for adjusting revolution speed, described plc data collection system
Before system is by the data collecting system for gathering measured point parameter Real-time Feedback and the action for controlling to adjust valve, regulation and stabilized nozzle 5
The PLC control system of pressure is formed afterwards, and described plc data acquisition system is to nozzle tank C2 inner nozzles different height point about 5
The monitoring of temperature and the vaporization for controlling heat tape increase nozzle pot liquid, so as to measure tested nozzle cryogenic liquid medium spray
To the discharge coefficient of gaseous environment, described PLC control system connection computer and by the data feedback collected to computer
Realization automatically controls.
Embodiment：Shown in Fig. 1, the utility model is a kind of experimental rig for testing low-temperature spray nozzle flow, and it includes liquid nitrogen
Storage tank, low temperature liquid nitrogen pump P1 and frequency converter, knockout drum C1, nozzle tank C2, regulating valve V1 ~ V4,100 meters of heat tape, pressure
Force snesor PI1 ~ PI5, temperature sensor TE1 ~ TE6, flowmeter FI1, plc data acquisition system, notebook computer, stainless steel
Pipeline, 380/220V 50Hz power supply supply and nozzle to be tested.
Liquid nitrogen comes from storage tank, and through liquid nitrogen pump P1 adherence pressures, pump discharge pressure is adjusted using frequency control.By increasing after pump
Add reflux line and return valve V2, pressure and flow before nozzle are automatically adjusted using PLC control system.Pass through the tune after nozzle tank
Section valve V4 automatically adjusts nozzle pressure tank i.e. nozzle back pressure using PLC control system.To increase the vaporization of nozzle tank cryogenic liquid,
Heat tape is wound on the outside of nozzle tank, and TEMP is set respectively on different height above and below vertical nozzle tank inner nozzle
Device, to ensure that nozzle is in gaseous environment.Have turbine meter FI1 before nozzle, before pump, after pump, before nozzle, nozzle tank is furnished with
Temperature sensors of high precision and pressure sensor, the temperature and pressure of measured point is monitored in real time.Pass through data collecting system and PLC
Feedback data automatically controls to computer and realization.Liquid nitrogen reflux realizes the circulation of medium to storage tank after nozzle tank.
The utility model is adjusted revolution speed, data collecting system to gather measured point parameter Real-time Feedback, passed through using frequency converter
PLC system controls to adjust the action of valve, adjusts the simultaneously forward and backward pressure of stabilized nozzle.To different height above and below nozzle tank inner nozzle
The monitoring of point temperature and the vaporization for increasing nozzle pot liquid using heat tape so that this device can measure tested nozzle
Cryogenic liquid medium is sprayed onto the discharge coefficient of gaseous environment, and makes the flow-pressure differential characteristic song that nozzle is tested under different back pressures
Line.
Claims (2)
1. a kind of experimental rig for testing low-temperature spray nozzle flow, it includes liquid nitrogen storage, low temperature liquid nitrogen pump P1, knockout drum
C1, nozzle tank C2, regulating valve, pressure sensor, temperature sensor and the flowmeter for being built-in with nozzle to be measured, it is characterised in that
Described liquid nitrogen storage is connected to knockout drum C1 by cryogenic piping through liquid nitrogen pump P1, and described knockout drum C1's is upper
Portion is connected in nozzle tank C2 through the second regulating valve V2 reversal connections by low temperature tracheae in liquid nitrogen storage, bottom by low temperature liquid pipe
Nozzle, the heat tape of increase cryogenic liquid vaporizer is wound with the outside of the nozzle tank, and in vertical nozzle tank, on nozzle
Temperature sensor is set respectively on lower different height；
Reversal connection is in liquid nitrogen storage after the 4th regulating valve V4 by generating tube for the tank skin of the nozzle tank C2, separately before liquid nitrogen pump P1
Cryogenic piping on be serially connected with the first regulating valve, is serially connected with the low temperature liquid pipe between knockout drum C1 and nozzle tank C2
Three regulating valve V3 and turbine meter FI1；
Pressure sensor and temperature sensor are separately installed with the front and rear pipes of the liquid nitrogen pump P1, before the nozzle tank C2
Pressure sensor and temperature sensor are separately installed with low temperature liquid pipe, and pressure sensing is installed on the knockout drum
Device；Described four regulating valves, a turbine meter and pressure sensor and temperature sensor connect external respectively
Plc data acquisition system.
2. the experimental rig of test low-temperature spray nozzle flow according to claim 1, it is characterised in that described low temperature liquid nitrogen
Pump P1 be configured with adjust revolution speed frequency converter, described plc data acquisition system by gather measured point parameter Real-time Feedback number
Formed according to the PLC control system of pressure before and after the action, regulation and stabilized nozzle of acquisition system and control and regulation valve, it is described
Monitoring of the plc data acquisition system to different height point temperature above and below nozzle tank C2 inner nozzles simultaneously controls heat tape to increase nozzle
The vaporization of pot liquid, so as to measure the discharge coefficient that tested nozzle cryogenic liquid medium is sprayed onto gaseous environment, described PLC controls
System processed connects computer and realizes the data feedback collected to computer and automatically controls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720688281.3U CN207036397U (en) | 2017-06-14 | 2017-06-14 | Test the experimental rig of low-temperature spray nozzle flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720688281.3U CN207036397U (en) | 2017-06-14 | 2017-06-14 | Test the experimental rig of low-temperature spray nozzle flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207036397U true CN207036397U (en) | 2018-02-23 |
Family
ID=61467757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720688281.3U Withdrawn - After Issue CN207036397U (en) | 2017-06-14 | 2017-06-14 | Test the experimental rig of low-temperature spray nozzle flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207036397U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132037A (en) * | 2017-06-14 | 2017-09-05 | 杭州杭氧工装泵阀有限公司 | A kind of experimental rig for testing low-temperature spray nozzle flow |
| CN110411735A (en) * | 2019-07-15 | 2019-11-05 | 合肥通用机械研究院有限公司 | A kind of Subzero valve simulation duty testing device |
-
2017
- 2017-06-14 CN CN201720688281.3U patent/CN207036397U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132037A (en) * | 2017-06-14 | 2017-09-05 | 杭州杭氧工装泵阀有限公司 | A kind of experimental rig for testing low-temperature spray nozzle flow |
| CN107132037B (en) * | 2017-06-14 | 2023-08-04 | 杭州杭氧工装泵阀有限公司 | Test device for testing flow of low-temperature nozzle |
| CN110411735A (en) * | 2019-07-15 | 2019-11-05 | 合肥通用机械研究院有限公司 | A kind of Subzero valve simulation duty testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180223 Effective date of abandoning: 20230804 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180223 Effective date of abandoning: 20230804 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |