CN206208415U - A kind of experimental rig of switch valve - Google Patents
A kind of experimental rig of switch valve Download PDFInfo
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- CN206208415U CN206208415U CN201621353678.9U CN201621353678U CN206208415U CN 206208415 U CN206208415 U CN 206208415U CN 201621353678 U CN201621353678 U CN 201621353678U CN 206208415 U CN206208415 U CN 206208415U
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- pressure cylinder
- switch valve
- gas
- back pressure
- experimental rig
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Abstract
The utility model is related to a kind of experimental rig of switch valve, the switch valve is used for engine exhaust system, the device includes the air compressor, burner, gas mixing heater, tube of pressure-stabilizing, admission pressure cylinder and the back pressure cylinder that are sequentially connected with by pipeline, switch valve is arranged on the connecting line between admission pressure cylinder and back pressure cylinder, the exhaust outlet connected with external environment condition is provided with back pressure cylinder, the wherein tail gas Hybrid Heating of the origin spontaneous combustion burner in gas mixing heater of the air from air compressor, and gas after Hybrid Heating is supplied to switch valve.Experimental rig of the present utility model being capable of the analog switch valve actual environment condition residing in engine real-world operation, the opening and closing functional reliability of effective check valve valve.
Description
Technical field
The utility model is related to the experimental rig of switch valve, in particular it relates to a kind of be used for marine diesel gas extraction system
Switch valve reliability test.
Background technology
Switch valve is the important component of marine diesel gas extraction system, and its valve is opened and closed and directly affects exhaust
The air current flow of turbocharger is flowed in pipeline, so as to influence booster operating efficiency and diesel engine performance.In order to ensure ship
With the normal operation of diesel engine, switch valve must have the normal opening and closing function under high-temperature and high-pressure conditions reliably and with long-term, therefore
The experimental rig of gas extraction system actual high-temperature high-pressure state when being required to simulate marine diesel normal work, so as to high temperature
Switch valve opening and closing function carries out reliability test.This be conducive to control diesel engine work when failure risk and can effectively drop
Low experimentation cost.
At present the country associated high-temperature under the conditions of switch valve experimental rig typically using compressor, heating tank detection means and
The parts such as surge tank, the trafficability performance for valve high-temperature medium is tested.However, in actual use, above-mentioned document
Disclosed existing experimental rig has the following disadvantages：
(1) above-mentioned experimental rig is only heated and pressurizeed to air, it is impossible to reflect diesel combustion final vacuum into isloation state.
In fact, because the particulate matter in diesel exhaust gas may be scurried into, filler causes valve jam or adhering to seal receptacle causes valve close
Feng Buyan, thus during switch valve reliability test necessary simulated exhaust into isloation state；
(2) the air rate of heat addition is slow, and air is more long the time required to being heated to normal marine diesel delivery temperature, and arrives
During measured switch valve portion position, temperature loss is larger, so as to have impact on the precision of experiment；
(3) pressure differential of flexible modulation high temperature shutoff valve inlet to be measured and outlet is unable to, actually only in certain pressure
The gas leakage situation under high temperature shutoff valve closed mode can be just measured under difference, thus cannot efficiency test switch valve in normal work
Make the gas leakage situation under pressure.
Therefore, it is necessary to a kind of experimental rig of switch valve is proposed, so as to solve above-mentioned many deficiencies of the prior art
At least one of.
Utility model content
A series of concept of reduced forms is introduced in utility model content part, this will be in specific embodiment part
Middle further description.Utility model content part of the present utility model is not meant to attempt to limit claimed
Technical scheme key feature and essential features, the guarantor for attempting to determine technical scheme required for protection is not meant that more
Shield scope.
In order to solve at least one of above-mentioned many deficiencies of the prior art, the utility model discloses one kind switch
The experimental rig of valve, the switch valve is used for engine exhaust system, and the wherein device includes the air being sequentially connected with by pipeline
Compressor, burner, gas mixing heater, tube of pressure-stabilizing, admission pressure cylinder and back pressure cylinder, switch valve are arranged on admission pressure
On connecting line between cylinder and back pressure cylinder, the exhaust outlet connected with external environment condition is provided with back pressure cylinder, from air compression
The tail gas Hybrid Heating of the air of machine origin spontaneous combustion burner in gas mixing heater, and the gas supply after Hybrid Heating
To switch valve.
Switch valve action test set in the utility model, by being provided with burner and origin spontaneous combustion in experimental rig
The air of the tail gas Hybrid Heating from air compressor of burner, enabling simulation high temperature shutoff valve is operated in marine diesel
When residing actual exhaust air into isloation state, and improve the elevated speed of gas temperature.This is starting for analog switch valve
Machine actual environment condition residing when operating is highly profitable such that it is able to switch valve in the way of high efficiency and low cost
It is simulated experiment.
Preferably, distribution pipeline is additionally provided between the admission pressure cylinder and back pressure cylinder, in the distribution pipeline
On be provided with regulating valve for adjusting the pressure differential between admission pressure cylinder and back pressure cylinder.
According to preferred switch valve action test set, air inlet can be respectively adjusted and controlled using the regulating valve on distribution pipeline
Gas pressure in pressure measuring cylinder and back pressure cylinder, effectively adjusts the pressure differential between the entrance and exit of switch valve, and then can
So that actual pressure in the pressure differential at measured switch valve two ends and Engine exhaust pipeline is poor being consistent such that it is able to height
The mode of efficiency and low cost is simulated to switch valve and tests.Meanwhile, high-temperature gas can be diverted into by distribution pipeline
Enter inlet cylinder and back pressure cylinder, greatly improve high-temperature gas utilization rate.
Preferably, it is provided with electric heater in the admission pressure cylinder and/or back pressure cylinder.
According to preferred switch valve action test set, using the electrical heating set up on admission pressure cylinder and/or back pressure cylinder
Device carries out heating compensation to the gas for being supplied to switch valve.Whereby, on the one hand can compensate for heat when gas is conveyed in pipeline
Amount loss, on the other hand, it is easy to the heating-up temperature of regulation and Control experiment device, so as to improve the test accuracy of experimental rig.
Preferably, the sensing for monitoring gas pressure is provided with the tube of pressure-stabilizing, admission pressure cylinder and back pressure cylinder
Device.
According to preferred switch valve action test set, it can be ensured that the container in whole experimental rig is transported all under operating pressure
OK, so as to improve the security of experimental rig.
Preferably, the engine exhaust system is marine diesel gas extraction system, and the burner is diesel fuel burner.
According to preferred switch valve action test set, high temperature shutoff valve can be effectively checked in marine diesel normal work
Opening and closing functional reliability, the marine diesel operation troubles rate that is caused by high temperature shutoff valve of reduction, and with simple and effective side
Formula carries out the pilot development of switch valve, so as to be effectively reduced experimentation cost and cycle.
Preferably, the switch valve is connected with the connecting line by short circuit part, and the short circuit part is welded with for two ends
The reducing steel tube of flange, the reducing steel tube is applied to the switch valve of different bores.
According to preferred switch valve action test set, it is conveniently replaceable the switch valve of different bores using short circuit part to be tried
Test, so as to improve the versatility of experimental rig and reduce the labour intensity of testing crew.
Brief description of the drawings
The drawings below of the utility model embodiment is new for understanding this practicality in this as a part of the present utility model
Type.Shown in the drawings of implementation method of the present utility model and its description, for explaining principle of the present utility model.In accompanying drawing
In,
Fig. 1 is the schematic diagram of the switch valve action test set according to a preferred embodiment of the present utility model.
Description of reference numerals：
1st, air compressor 2, burner 3, gas mixing heater
4th, tube of pressure-stabilizing 5, electric heater 6, admission pressure cylinder
7th, back pressure cylinder 8, switch valve 9, distribution pipeline
Specific embodiment
In the following description, a large amount of concrete details are given and the utility model is more thoroughly managed to provide
Solution.It will be apparent, however, to one skilled in the art that the utility model embodiment can be without one or more
These details and be carried out.In other examples, in order to avoid obscuring with the utility model embodiment, for ability
Some technical characteristics known to domain are not described.
In order to thoroughly understand embodiment of the present utility model, detailed structure will be proposed in following description.Obviously, originally
The execution of utility model embodiment is not limited to the specific details that those skilled in the art is familiar with.It is of the present utility model compared with
Good embodiment is described in detail as follows, but in addition to these detailed descriptions, the utility model can also have other embodiment.
According to one side of the present utility model, there is provided one kind switch valve action test set, the wherein switch valve are used to start
The gas extraction system of machine.Specifically in preferred embodiment below, the engine is the gas extraction system of marine diesel, but this area skill
Art personnel are it is understood that the switch valve is not limited to the gas extraction system for marine diesel, but it is all to can be also used for other
Such as gas extraction system of land diesel engine or gasoline engine engine.
As shown in figure 1, the switch valve action test set according to a preferred embodiment of the present utility model is included by pipe
Air compressor 1, burner 2, gas mixing heater 3, tube of pressure-stabilizing 4, admission pressure cylinder 6 and back pressure cylinder that road is sequentially connected with
7.Switch valve 8 is arranged between admission pressure cylinder 6 and back pressure cylinder 7.
Air compressor 1 can be existing conventional air compressor, and such as but not limited to piston type or screw is empty
Air compressor, the wherein air exit of the air compressor 1 are connected to gas mixing heater 3 by pipeline.
Burner 2 is preferably the diesel fuel burner of marine diesel, and the diesel fuel burner includes combustion chamber and mixed with gas
Close exhaust outlet of the heater 3 by pipeline connection.Diesel oil and combustion-supporting gas are supplied in combustion chamber and are lighted, it is high to form high temperature
The tail gas with particulate matter of pressure, the tail gas through exhaust outlet by Pipeline transport in gas mixing heater 3, with from sky
The air mixing of air compressor 1 is simultaneously heated to it.
Gas mixing heater 3 for example can be air-air mixed heat exchanger known in the art, and it is connected by pipeline
Tube of pressure-stabilizing 4 is connected to, so that the mixed gas after the heating from gas mixing heater 3 are expanded to stabilization in tube of pressure-stabilizing 4
Pressure.
First pressure sensor is provided with tube of pressure-stabilizing 4 to monitor the gas pressure in tube of pressure-stabilizing 4.Tube of pressure-stabilizing 4 passes through
Pipeline is connected to admission pressure cylinder 6, and the gas after voltage stabilizing is supplied into admission pressure cylinder 6.Be provided with the pipeline for
The valve of control piper switch, is supplied with the gas controlled to admission pressure cylinder 6.
Second pressure sensor is provided with admission pressure cylinder 6, to monitor the gas pressure of admission pressure cylinder 6.Air inlet
Pressure measuring cylinder 6 is connected to switch valve 8 by pipeline, and the gas after Hybrid Heating in gas mixing heater 3 is supplied to out
Close valve 8.Switch valve 8 is arranged on the connecting line between admission pressure cylinder and back pressure cylinder 7.
Preferably, switch valve is connected with the connecting line by short circuit part, and the short circuit part is welded with the change of flange for two ends
Footpath steel pipe, reducing steel tube is applied to the switch valve of different bores.So, for the switch valve with different appearance and sizes, use
Also easily with connecting line can be connected switch valve to be measured by short circuit part.
Back pressure cylinder 7 is arranged on the downstream of switch valve 8, the 3rd pressure sensor is provided with back pressure cylinder 7, to monitor back pressure
The gas pressure of cylinder 7, while be additionally provided with exhaust outlet connect with external environment condition, by valve can control back pressure tin 7 via
The exhaust outlet external environment discharges unnecessary gas.
Further, distribution pipeline 9 is also provided between admission pressure cylinder 6 and back pressure cylinder 7, in the distribution pipeline 9
On be provided with for adjust admission pressure cylinder 6 with back pressure cylinder 7 pressure differential regulating valve.Can be in the future by the distribution pipeline 9
Back pressure cylinder 7 is fed directly in the case where admission pressure cylinder 6 is not passed through from the portion gas of tube of pressure-stabilizing 4.Whereby, can be respectively
Gas pressure in admission pressure cylinder 6 and back pressure cylinder 7 is adjusted, and then adjusts the gas of the upstream and downstream of switch valve 8
Pressure differential.The adjustment can via operating personnel observation second and the 3rd pressure sensor reading after to the regulation on pipeline
Valve carries out regulation manually to realize.It will be appreciated by those skilled in the art that the adjustment can also be by by the electricity of pressure sensor
Signal is converted into the recognizable control signal of regulating valve to realize after being processed via controller.Whereby, can be via dividing for setting
Flow tube road 9 come control and adjust admission pressure cylinder 6 and back pressure cylinder 7 in gas pressure, operated in not with simulating real engine
With upstream in the blast pipe under operating mode and gas downstream pressure differential and and then simulate ring of the high temperature shutoff valve under different operating modes
Border pressure.
Further, electric heater 5 can be provided with admission pressure cylinder 6 and back pressure cylinder 7.The electric heater can be
Heater types well known in the art, for example, can be resistance heater or ptc heater etc..The side of electric heater 5 one is set
Face can carry out heating compensation with precise control gas temperature to the gas temperature in admission pressure cylinder 6 and back pressure cylinder 7, so that mould
Intend operating ambient temperature of the high-temperature valve under Different Work Condition of Engine.On the other hand, can meet and flow to the at higher temperature of switch valve 8
The demand of the gas of degree.It is to be appreciated that in a not shown embodiment, electric heater can also be provided only on admission pressure cylinder
Or in back pressure cylinder.
In actual mechanical process, switch valve 8 to be tested is for example connected with the state opened via short circuit part first
On connecting line between admission pressure cylinder 6 and back pressure cylinder 7.Then, open air compressor 1 and light diesel fuel burner 2.
The air and tail gas discharged by air compressor 1 and diesel fuel burner 2 are input to gas mixing heater 3 via pipeline respectively
In.In gas mixing heater 3, the tail of the origin spontaneous combustion burner in gas mixing heater of the air from air compressor
Gas Hybrid Heating, with formed HTHP and with the gas of certain granules thing, the temperature and pressure of the wherein gas is preferred
Delivery temperature and pressure with marine diesel is suitable.The gas in gas mixing heater 3 is transported to voltage stabilizing using pipeline
In cylinder 4, to expand wherein with stabilizing gas pressure.Open valve between tube of pressure-stabilizing 4 and admission pressure cylinder 6 on pipeline so that
Gas after voltage stabilizing is flowed into admission pressure cylinder 6, and is then flowed into back pressure cylinder 7 via switch valve 8.There is higher temperature
During demand, can be by opening the electric heater 5 set in admission pressure cylinder 6 and back pressure tin 7 come to the further heating of gas.
The incipient stage of experiment, the exhaust close on back pressure cylinder 7 is kept to gradually build up back pressure with back pressure cylinder 7.Needing to improve
In the case of back pressure in back pressure cylinder 7, can be by opening the valve on distribution pipeline 9 so that partial high pressure gas is flowed directly into
Back pressure cylinder 7 is improving back pressure therein.Made between admission pressure cylinder 6 and back pressure cylinder 7 by the valve opening for adjusting distribution pipeline
Pressure differential stabilization in differential pressure range under engine actual operating mode, and by adjusting electric heater 5 and/or diesel oil
The tail gas amount of burner flows through the gas temperature of switch valve to adjust.In the case where experimental condition is met, by switch valve by beating
Open state switches to closed mode to start reliability test.Due in the gas and engine actual motion that flow through switch valve
Tail gas is all similar at aspects such as composition, temperature and pressure differences such that it is able to reappear switch valve under diesel engine actual operating mode
Working environment, to obtain accurate reliability result.After test terminates, air compressor and diesel fuel burner are closed successively
And the exhaust outlet on back pressure cylinder 7 is opened, then the gas in discharge experimental rig unload or change switch valve.
The utility model is illustrated by above-described embodiment, but it is to be understood that, above-described embodiment is
For citing and descriptive purpose, and it is not intended to be limited to the utility model in described scope of embodiments.In addition ability
Field technique personnel it is understood that the utility model is not limited to above-described embodiment, according to teaching of the present utility model also
More kinds of variants and modifications can be made, these variants and modifications all fall within the utility model scope required for protection with
It is interior.
Claims (6)
1. a kind of experimental rig of switch valve, the switch valve is used for engine exhaust system, it is characterised in that described device bag
Include air compressor, burner, gas mixing heater, tube of pressure-stabilizing, admission pressure cylinder and the back of the body being sequentially connected with by pipeline
Pressure cylinder, the switch valve is arranged on the connecting line between the admission pressure cylinder and back pressure cylinder, on the back pressure cylinder
The exhaust outlet connected with external environment condition is provided with, the air from the air compressor is in gas mixing heater by coming from
The tail gas Hybrid Heating of the burner, and gas after Hybrid Heating is supplied to the switch valve.
2. experimental rig according to claim 1, it is characterised in that between the admission pressure cylinder and back pressure cylinder also
Distribution pipeline is provided with, is provided with the distribution pipeline for adjusting between the admission pressure cylinder and back pressure cylinder
The regulating valve of pressure differential.
3. experimental rig according to claim 1, it is characterised in that in the admission pressure cylinder and/or back pressure cylinder
It is provided with electric heater.
4. experimental rig according to claim 1, it is characterised in that the tube of pressure-stabilizing, admission pressure cylinder and institute
State the sensor being provided with back pressure cylinder for monitoring gas pressure.
5. experimental rig according to claim 1, it is characterised in that the engine exhaust system is marine diesel row
Gas system, the burner is diesel fuel burner.
6. experimental rig according to claim 1, it is characterised in that the switch valve passes through short circuit with the connecting line
Part is connected, and the short circuit part is welded with the reducing steel tube of flange for two ends, and the reducing steel tube is applied to the switch of different bores
Valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621353678.9U CN206208415U (en) | 2016-12-09 | 2016-12-09 | A kind of experimental rig of switch valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621353678.9U CN206208415U (en) | 2016-12-09 | 2016-12-09 | A kind of experimental rig of switch valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206208415U true CN206208415U (en) | 2017-05-31 |
Family
ID=58746596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621353678.9U Active CN206208415U (en) | 2016-12-09 | 2016-12-09 | A kind of experimental rig of switch valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206208415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525283A (en) * | 2016-12-09 | 2017-03-22 | 中国船舶重工集团公司第七研究所 | Test device for switch valve |
-
2016
- 2016-12-09 CN CN201621353678.9U patent/CN206208415U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106525283A (en) * | 2016-12-09 | 2017-03-22 | 中国船舶重工集团公司第七研究所 | Test device for switch valve |
| CN106525283B (en) * | 2016-12-09 | 2023-12-22 | 中国船舶集团有限公司第七一一研究所 | Test device of switch valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee after: The 711 Research Institute of China Shipbuilding Corp. Address before: 201108 Shanghai city Minhang District Huaning Road No. 3111 Patentee before: Shanghai Marine Diesel Engine Research Institute |
|
| CP01 | Change in the name or title of a patent holder |