CN209704931U - The cooling water temperature analog control system of two-stage gas suspension centrifugal air compressor - Google Patents
The cooling water temperature analog control system of two-stage gas suspension centrifugal air compressor Download PDFInfo
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- CN209704931U CN209704931U CN201921579874.1U CN201921579874U CN209704931U CN 209704931 U CN209704931 U CN 209704931U CN 201921579874 U CN201921579874 U CN 201921579874U CN 209704931 U CN209704931 U CN 209704931U
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Abstract
The utility model discloses a kind of cooling water temperature analog control systems of two-stage gas suspension centrifugal air compressor, including air compressor machine, surface air cooler, water tank, water pump, sensor module and PLC controller, the water inlet of water pump is connect by pipeline with the water outlet of the water tank, the water outlet of water pump is connected by the water inlet of pipeline and air compressor machine, the water outlet of air compressor machine is connected by the water inlet of pipeline and surface air cooler, the water outlet of surface air cooler is connected by the water inlet of pipeline and water tank, and sensor module and surface air cooler are connect with PLC controller signal.The utility model scientific structure design is reasonable, it is ensured that the coolant water temperature for being input to air compressor machine is constant steady, so that air compressor machine runs more stable under each operating condition, improves the service life of air compressor machine.
Description
Technical field
The utility model relates to hydrogen fuel cell technical field of engines, and in particular to a kind of centrifugal sky of two-stage gas suspension
The cooling water temperature analog control system of press.
Background technique
At present develop new energy source fuel cell automobile be considered as transportation and energy's power transition important link and by weight
Depending on.Proton Exchange Membrane Fuel Cells is representative the most mature in current fuel cell family.It is with hydrogen and air (air
In oxygen) do fuel electrochemical reaction occur, the chemical energy of fuel is directly changed into the device of electric energy, reaction generates water.
It has both pollution-free, high efficiency, is applicable in wide, low noise, room temperature quick start, can quickly supplement energy and has a modular construction
The advantages that, it is more likely that one of the main power source as the automobile after traditional combustion engine.
Centrifugal air compressor design at present generally uses electric-machine directly-driven mode, rotor and being made of one of main shaft knot
Structure, main-axis end are fixedly connected receded disk impeller, and impeller is built in spiral case.Under the rotation of rotor ultrahigh speed, impeller is driven
Gas high speed rotation interacts with spiral case and generates high pressure, mass flow air, and supply fuel battery engines are used for fuel cell
The generation of electrochemical reaction inside pile, it is high that middle (center) bearing provides the integrated rotary part of support rotor (including-main shaft-impeller)
Speed rotation.
Centrifugal air compressor in order to improve the pressure and flow of delivery air, often use ultrahigh rotating speed (95000Rpm with
On) revolving speed control implementation, superfast rotor also brings along heat dissipation and cooling problem.Therefore, when air compressor machine works, electricity
Machine stator, which is powered to running, can generate a large amount of heat with the high speed rotation of rotor, and heat is gathered in inside air compressor machine and will will affect
The operating status of motor stator and its control circuit and rotor, it is necessary to timely and effectively realize heat dissipation.Meanwhile heat dissipation is uneven
Rotor will be made to generate temperature gradient and thermal bending deformation occur, for the rotor under high speed rotation state, thermal bending deformation
Rotor oscillation will be will cause and entire air compressor machine is made Vibration Condition occur, when serious, air compressor structure will be destroyed, and cause sky
Press damage even personal damage.
For air compressor machine during on-board running, the type of cooling derives from automobile cooling water itself, the type of cooling of air compressor machine
It is limited to the influence of cooling water car temperature, needs to design air compressor machine self-loopa high/low temperature cooling water control system and carrys out simulated automotive
The test of situation is influenced under upper cooling water difference water temperature on compressor operation, experiment purpose is exactly the air compressor machine under different operating conditions
The analysis of operating condition data, is output to compressor with constant stable coolant water temperature with cooling.
Utility model content
The purpose of this utility model is to provide a kind of simulations of the cooling water temperature of two-stage gas suspension centrifugal air compressor to control
System processed, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides the following technical solutions: a kind of two-stage gas suspension centrifugal air compressor
Cooling water temperature analog control system, including air compressor machine, surface air cooler, water tank, water pump, sensor module and PLC controller, institute
The water inlet for stating water pump is connect by pipeline with the water outlet of the water tank, and the water outlet of the water pump passes through pipeline and the sky
The water inlet of press connects, and the water outlet of the air compressor machine is connect by pipeline with the water inlet of the surface air cooler, and the table is cold
The water outlet of device is connect by pipeline with the water inlet of the water tank, and the sensor module includes being arranged in the water pump and institute
State the water outlet sensor module between water inlet end sensor module, the air compressor machine and the surface air cooler between air compressor machine with
And the differential pressure pickup being arranged between the air compressor machine intake-outlet, the sensor module and surface air cooler are and PLC controller
Signal connection.
Further, the water inlet end sensor module includes being successively set on the water outlet of the water pump to the pneumatics
Flow sensor I and water temperature sensor I on the pipeline of the water inlet of machine, the water temperature sensor I are arranged in the air compressor machine
Water inlet position, the flow sensor I is positioned close to the water outlet of the water pump.
Further, the water outlet sensor module includes being successively set on the water outlet of the air compressor machine to the table
Water temperature sensor II and flow sensor II on the pipeline of cooler water inlet, the water temperature sensor II are arranged in the pneumatics
The water outlet position of machine, the flow sensor II are arranged close to the surface air cooler water inlet.
Further, the water pump water outlet setting flow sensor I be ultrasonic flowmeter, the surface air cooler into
The flow sensor II at the mouth of a river is intelligent open channel flow-meter.
Further, the differential pressure pickup is intelligent pressure transmitter.
Further, the respectively arranged water temperature sensor I of the intake-outlet of the air compressor machine and water temperature sensor II are
PT1000 type temperature sensor.
Further, it is 1.8-2.0m, the flow that the flow sensor I, which arrives the distance of the water inlet of the air compressor machine,
The distance that sensor II arrives the water outlet of the air compressor machine is 1.0-1.2m.
Further, the differential pressure pickup is apart from air compressor machine intake-outlet distance 30mm.
Further, the water temperature sensor I and water temperature sensor II are 35mm apart from air compressor machine intake-outlet distance.
The utility model has the beneficial effects that the system structure design is scientific and reasonable, sensed by being arranged at air compressor machine both ends
Device assembly, can measure temperature, pressure and the flow of the disengaging of both ends cooling water, and can calculate water outlet group data, pass through PLC
Controller calculates refrigerating capacity, and control surface air cooler cools down return water, so that the temperature of return water is identical as inflow temperature, then
Water tank is flowed back into again, air compressor machine is squeezed by water pump, it is ensured that the coolant water temperature for being input to air compressor machine is constant steady, so recycles.
Simultaneously by the measuring and calculation of water resistance, suitable water pump can be determined to the air compressor machine selection under different operating conditions, it is ensured that cooling water
What is inputted is steady.It runs air compressor machine under each operating condition more stable, improves the service life of air compressor machine.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Wherein: 1- air compressor machine, 2- water pump, 3- water tank, 4- surface air cooler, 5-PLC controller, 6- water temperature sensor I, 7- pressure difference
Sensor, 8- flow sensor I, 9- water temperature sensor II, 11- flow sensor II.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Referring to Fig. 1, the utility model provides a kind of cooling water temperature simulation control of two-stage gas suspension centrifugal air compressor
The water inlet of system processed, including air compressor machine 1, surface air cooler 4, water tank 3, water pump 2, sensor module and PLC controller 5, water pump 2 is logical
Piping is connect with the water outlet of water tank 3, and the water outlet of water pump 2 is connect by pipeline with the water inlet of air compressor machine 1, air compressor machine 1
Water outlet connect with the water inlet of surface air cooler 4 by pipeline, the water outlet of surface air cooler 4 passes through the water inlet of pipeline and water tank 3
Connection, sensor module includes the water inlet end sensor module being arranged between water pump 2 and air compressor machine 1, cold in air compressor machine 1 and table
The differential pressure pickup 7 being arranged between water outlet sensor module and air compressor machine intake-outlet between device 4, sensor module and
Surface air cooler 4 is connect with 5 signal of PLC controller.
Water inlet end sensor module includes being successively set on the water outlet to the pipeline of the water inlet of air compressor machine 1 of water pump 2
Flow sensor I 8 and water temperature sensor I 6, water temperature sensor I 6 water inlet position of air compressor machine 1, flow sensor are set
I 8 are positioned close to the water outlet of water pump 2, and flow sensor I 8 is ultrasonic flowmeter, ultrasonic flowmeter to air compressor machine 1
The distance of water inlet is 1.8-2.0m.
Water outlet sensor module includes being successively set on the water outlet to the pipeline of 4 water inlet of surface air cooler of air compressor machine 1
Water temperature sensor II 9 and flow sensor II 11, water temperature sensor II 9 the water outlet position of air compressor machine 1 is set, flow passes
Sensor II 11 is arranged close to 4 water inlet of surface air cooler, and flow sensor II 11 is intelligent open channel flow-meter, intelligent open channel flow-meter to the pneumatics
The distance of the water outlet of machine 1 is 1.0-1.2m.
Differential pressure pickup 7 is intelligent pressure transmitter, apart from 1 intake-outlet distance 30mm of air compressor machine.
Water temperature sensor I and water temperature sensor II are PT1000 type temperature sensor, apart from 1 intake-outlet distance of air compressor machine
It is 35mm.
By forming closed loop between air compressor machine, surface air cooler, water tank, water pump and PLC controller, set at air compressor machine both ends
Sensor module is set, temperature, pressure difference and the flow of the disengaging of both ends cooling water can be measured, and water outlet group number can be calculated
According to calculating refrigerating capacity by PLC controller, control surface air cooler cools down return water, so that the temperature of return water and water inlet temperature
It spends identical, then flows back into water tank again, air compressor machine is squeezed by water pump, it is ensured that the coolant water temperature for being input to air compressor machine is constant flat
Surely, it so recycles.Simultaneously by the measuring and calculation of water resistance, it can select to determine in entrucking to the air compressor machine under different operating conditions and close
Suitable water pump, it is ensured that cooling water inputs steady.Run air compressor machine under each operating condition more stable, that improves air compressor machine uses the longevity
Life.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (9)
1. the cooling water temperature analog control system of two-stage gas suspension centrifugal air compressor, it is characterised in that: including air compressor machine, table
Cooler, water tank, water pump, sensor module and PLC controller, the water inlet of the water pump pass through the water outlet of pipeline and the water tank
The water outlet of mouth connection, the water pump is connect by pipeline with the water inlet of the air compressor machine, and the water outlet of the air compressor machine is logical
Piping is connect with the water inlet of the surface air cooler, and the water outlet of the surface air cooler is connected by the water inlet of pipeline and the water tank
It connects, the sensor module includes the water inlet end sensor module being arranged between the water pump and the air compressor machine, the sky
The pressure difference being arranged between water outlet sensor module and the air compressor machine intake-outlet between press and the surface air cooler passes
Sensor, the sensor module and surface air cooler are connect with PLC controller signal.
2. the cooling water temperature analog control system of two-stage gas suspension centrifugal air compressor according to claim 1, special
Sign is: the water inlet end sensor module includes being successively set on the water outlet of the water pump to the water inlet of the air compressor machine
Pipeline on flow sensor I and water temperature sensor I, the water temperature sensor I the water inlet position of the air compressor machine is set
It sets, the flow sensor I is positioned close to the water outlet of the water pump.
3. the cooling water temperature analog control system of two-stage gas suspension centrifugal air compressor according to claim 1, special
Sign is: the water outlet sensor module includes being successively set on the water outlet of the air compressor machine to the surface air cooler water inlet
Pipeline on water temperature sensor II and flow sensor II, the water temperature sensor II water outlet of the air compressor machine is set
Position, the flow sensor II are arranged close to the surface air cooler water inlet.
4. the cooling water temperature analog control system of two-stage gas suspension centrifugal air compressor according to claim 2 or 3,
Be characterized in that: the flow sensor I of the water outlet setting of the water pump is ultrasonic flowmeter, the surface air cooler water inlet setting
Flow sensor II be intelligent open channel flow-meter.
5. the cooling water temperature analog control system of two-stage gas suspension centrifugal air compressor according to claim 1, special
Sign is: the differential pressure pickup is intelligent pressure transmitter.
6. the cooling water temperature analog control system of two-stage gas suspension centrifugal air compressor according to claim 2 or 3,
Be characterized in that: the respectively arranged water temperature sensor I of the intake-outlet of the air compressor machine and water temperature sensor II are PT1000 type temperature
Spend sensor.
7. the cooling water temperature analog control system of two-stage gas suspension centrifugal air compressor according to claim 4, special
Sign is: the distance of the water inlet of the flow sensor I to the air compressor machine is 1.8-2.0m, and the flow sensor II arrives
The distance of the water outlet of the air compressor machine is 1.0-1.2m.
8. the cooling water temperature analog control system of two-stage gas suspension centrifugal air compressor according to claim 5, special
Sign is: the differential pressure pickup is 30mm apart from air compressor machine intake-outlet distance.
9. the cooling water temperature analog control system of two-stage gas suspension centrifugal air compressor according to claim 6, special
Sign is: the water temperature sensor I and water temperature sensor II are 35mm apart from air compressor machine intake-outlet distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921579874.1U CN209704931U (en) | 2019-09-23 | 2019-09-23 | The cooling water temperature analog control system of two-stage gas suspension centrifugal air compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921579874.1U CN209704931U (en) | 2019-09-23 | 2019-09-23 | The cooling water temperature analog control system of two-stage gas suspension centrifugal air compressor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118008893A (en) * | 2024-03-26 | 2024-05-10 | 合肥德顺机电设备有限公司 | Energy-saving two-stage centrifugal air compressor |
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2019
- 2019-09-23 CN CN201921579874.1U patent/CN209704931U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118008893A (en) * | 2024-03-26 | 2024-05-10 | 合肥德顺机电设备有限公司 | Energy-saving two-stage centrifugal air compressor |
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