CN108287083A - A kind of accurate temperature control water end system of washing machine performance test station - Google Patents
A kind of accurate temperature control water end system of washing machine performance test station Download PDFInfo
- Publication number
- CN108287083A CN108287083A CN201810343823.2A CN201810343823A CN108287083A CN 108287083 A CN108287083 A CN 108287083A CN 201810343823 A CN201810343823 A CN 201810343823A CN 108287083 A CN108287083 A CN 108287083A
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- Prior art keywords
- water
- temperature
- constant
- branch pipe
- valve
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/30—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature
- G05D23/32—Automatic controllers with an auxiliary heating device affecting the sensing element, e.g. for anticipating change of temperature with provision for adjustment of the effect of the auxiliary heating device, e.g. a function of time
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
It is disclosed by the invention to belong to water system technical field, specially a kind of accurate temperature control water end system of washing machine performance test station, including constant-temperature hot water branch pipe, hot water check valve is installed on the pipeline of the constant-temperature hot water branch pipe, the left end of the constant-temperature hot water branch pipe and the upper end water inlet of electric T-shaped valve connect, the lower end water inlet of the electric T-shaped valve is connected with constant temperature cold water branch pipe, cold water check valve is installed on the pipeline of the constant temperature cold water branch pipe, the left end water outlet of the electric T-shaped valve is connected with water-supply-pipe, temperature sensor is installed on the pipeline of the water-supply-pipe, this programme disclosure satisfy that the water requirements of output relevant temperature, by separately providing different supply water temperatures, so that this programme station end, which is supplied water, can be independently applicable to most performance tests.
Description
Technical field
The present invention relates to water system technical field, specially a kind of accurate temperature control of washing machine performance test station supplies water last
End system.
Background technology
Washing machine performance detection water system at present, generally comprise two-way water supply, wherein all the way be constant temperature cold water, all the way for
Constant-temperature hot water, cold water temperature are usually 15 DEG C, and hot water temperature is according to tested washing machine structure and type of attachment, and executes standard
Difference, water temperature require it is also variant, be related to temperature include 30 DEG C, 40 DEG C, 55 DEG C, 60 DEG C etc., so constant-temperature hot water temperature one
Denier sets up a temperature, and test station needs the product of other hot water temperatures by that cannot test.
For the laboratory more than detection sample type difference, such water system can seriously restrict the test effect in laboratory
Rate and ability, waste test resource to a certain extent, for this purpose, we have proposed a kind of washing machine performance test stations precisely to control
Warm water end system.
Invention content
The purpose of the present invention is to provide a kind of accurate temperature control water end systems of washing machine performance test station, to solve
Laboratory mentioned above in the background art for more than detection sample type difference, such water system can seriously restrict reality
The testing efficiency and ability for testing room, the problem of wasting test resource to a certain extent.
To achieve the above object, the present invention provides the following technical solutions：A kind of accurate temperature control of washing machine performance test station
Water end system, including constant-temperature hot water branch pipe are equipped with hot water check valve, the perseverance on the pipeline of the constant-temperature hot water branch pipe
The left end of warm water's branch pipe and the upper end water inlet of electric T-shaped valve connect, and the lower end water inlet of the electric T-shaped valve is connected with
Constant temperature cold water branch pipe is equipped with cold water check valve on the pipeline of the constant temperature cold water branch pipe, and the left end of the electric T-shaped valve goes out
The mouth of a river is connected with water-supply-pipe, and temperature sensor is equipped on the pipeline of the water-supply-pipe, and the left end of the water-supply-pipe is equipped with pressure
The output port of power transmitter, the temperature sensor is connect by data line with the input port of PID control temp controlled meter, described
The output port of PID control temp controlled meter is connected by the input port of data line and electric T-shaped valve, the pressure transmitter
Left end is connected with outlet pipe, and there is return duct in the bottom of the outlet pipe by flanged joint, is installed on the pipeline of the return duct
There is shut-off valve.
Preferably, the constant-temperature hot water branch pipe meets 30 DEG C, 40 DEG C, 55 DEG C, 60 DEG C of water temperature output.
Preferably, the electric T-shaped valve includes triple valve and servo motor, the output end of the servo motor and threeway
The regulation and control knob of valve connects, and the control circuit port of the servo motor passes through data with the output port of PID control temp controlled meter
Line connects.
Preferably, the temperature sensor is TR/02015 thermoelectricity resistance type temperature sensors.
Preferably, the pressure transmitter is liquid crystal display pressure transmitter.
Preferably, the shut-off valve is hand shut-off valve.
Compared with prior art, the beneficial effects of the invention are as follows：This programme disclosure satisfy that the water supply of output relevant temperature needs
It asks, by separately providing different supply water temperatures so that this programme station end, which is supplied water, can be independently applicable to most performances
Experiment.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the PID control schematic diagram of PID control temp controlled meter of the present invention.
In figure：1 constant-temperature hot water branch pipe, 2 hot water check valves, 3 electric T-shaped valves, 4 constant temperature cold water branch pipes, 5 cold water check valves,
6 water-supply-pipes, 7 temperature sensors, 8 PID control temp controlled meters, 9 pressure transmitters, 10 outlet pipes, 11 return ducts, 12 shut-off valves.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
- 2 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of accurate temperature control water supply of washing machine performance test station
End system, including constant-temperature hot water branch pipe 1 are equipped with hot water check valve 2, constant-temperature hot water branch on the pipeline of constant-temperature hot water branch pipe 1
The left end of pipe 1 is connect with the upper end water inlet of electric T-shaped valve 3, and the lower end water inlet of electric T-shaped valve 3 is connected with constant temperature cold water
Branch pipe 4, is equipped with cold water check valve 5 on the pipeline of constant temperature cold water branch pipe 4, and the left end water outlet of electric T-shaped valve 3 is connected with defeated
Water pipe 6 is equipped with temperature sensor 7 on the pipeline of water-supply-pipe 6, and the left end of water-supply-pipe 6 is equipped with pressure transmitter 9, and temperature passes
The output port of sensor 7 is connect by data line with the input port of PID control temp controlled meter 8, the output of PID control temp controlled meter 8
Port is connect by data line with the input port of electric T-shaped valve 3, and the left end of pressure transmitter 9 is connected with outlet pipe 10, goes out
There is return duct 11 in the bottom of water pipe 10 by flanged joint, and shut-off valve 12 is equipped on the pipeline of return duct 11.
Wherein, constant-temperature hot water branch pipe 1 meets 30 DEG C, 40 DEG C, 55 DEG C, the output of 60 DEG C of water temperature, and electric T-shaped valve 3 includes three
Port valve and servo motor, the output end of servo motor and the regulation and control knob of triple valve connect, the control circuit port of servo motor
It is connect by data line with the output port of PID control temp controlled meter 8, temperature sensor 7 passes for TR/02015 thermoelectricity resistance type temperature
Sensor, pressure transmitter 9 are liquid crystal display pressure transmitter, and shut-off valve 12 is hand shut-off valve.
Operation principle：PID control temp controlled meter 8 uses UT55A temp controlled meters, is joined by 8 set temperature of PID control temp controlled meter
Number enters constant-temperature hot water and constant temperature cold water, constant-temperature hot water and constant temperature cold water by constant-temperature hot water branch pipe 1 and constant temperature cold water branch pipe 4
Entered in water-supply-pipe 6 by electric T-shaped valve 3, temperature sensor 7 measures the water temperature in water-supply-pipe 6 into trip temperature, will measure
Temperature value is exported in a manner of electric signal to PID control temp controlled meter 8, PID control temp controlled meter 8 by the electric signal of reception with set in advance
Fixed temperature value comparison, if measured value is greater than the set value, servo motor control that PID control temp controlled meter 8 passes through electric T-shaped valve 3
The switch of the triple valve of system 3 regulates and controls hot and cold water output ratio, increases cold water discharge, hot water discharge is reduced, to reduce electricity
The leaving water temperature of dynamic triple valve 3, if measured value is less than setting value, the switch of the reversed triple valve for adjusting electric T-shaped valve 3, drop
Low cold water discharge increases hot water discharge, until measurement temperature value is equal with set temperature value, is surveyed by pressure transmitter 9
The pressure of the flow in water-supply-pipe 6 is measured, pressure value is shown by the display of pressure transmitter 9, by the measured pressure value of display
It is compared with the hydraulic pressure value of needs, if measured value is more than the hydraulic pressure value needed, passes through adjustable cut-off valve 12 so that returned in return duct 11
The water flow of stream increases, and increases pressure loss in piping, reduces pressure of supply water, if measured value is less than the hydraulic pressure value needed, passes through tune
Saving shut-off valve 12 so that the water flow to flow back in return duct 11 reduces, and reduces pressure loss in piping, improves pressure of supply water, to
So that the pressure value of the hydraulic pressure value and needs in outlet pipe 10 is fluctuated in range of needs, then outlet pipe 10 flows out hydraulic pressure and temperature
As test the hydraulic pressure and temperature of needs.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of accurate temperature control water end system of washing machine performance test station, including constant-temperature hot water branch pipe (1), feature exists
In：Hot water check valve (2) is installed on the pipeline of the constant-temperature hot water branch pipe (1), the left end of the constant-temperature hot water branch pipe (1) with
The upper end water inlet connection of electric T-shaped valve (3), the lower end water inlet of the electric T-shaped valve (3) are connected with constant temperature cold water branch pipe
(4), cold water check valve (5) is installed, the left end of the electric T-shaped valve (3) goes out on the pipeline of the constant temperature cold water branch pipe (4)
The mouth of a river is connected with water-supply-pipe (6), and temperature sensor (7) is equipped on the pipeline of the water-supply-pipe (6), the water-supply-pipe (6)
Left end is equipped with pressure transmitter (9), and the output port of the temperature sensor (7) passes through data line and PID control temp controlled meter
(8) input port connection, the output port of the PID control temp controlled meter (8) are defeated by data line and electric T-shaped valve (3)
Inbound port connects, and the left end of the pressure transmitter (9) is connected with outlet pipe (10), and the bottom of the outlet pipe (10) passes through method
Orchid is connected with return duct (11), and shut-off valve (12) is equipped on the pipeline of the return duct (11).
2. the accurate temperature control water end system of a kind of washing machine performance test station according to claim 1, feature exist
In：The constant-temperature hot water branch pipe (1) meets 20 DEG C -60 DEG C of water temperature output, and the constant-temperature hot water branch pipe (1) is commonly used for water temperature
Degree is 30 DEG C, 40 DEG C, 55 DEG C, 60 DEG C.
3. the accurate temperature control water end system of a kind of washing machine performance test station according to claim 1, feature exist
In：The electric T-shaped valve (3) includes triple valve and servo motor, the output end of the servo motor and the regulating valve of triple valve
Bar connects, and the control circuit port of the servo motor is connect with the output port of PID control temp controlled meter (8) by data line.
4. the accurate temperature control water end system of a kind of washing machine performance test station according to claim 1, feature exist
In：The temperature sensor (7) is Pt100 thermoelectricity resistance type temperature sensors.
5. the accurate temperature control water end system of a kind of washing machine performance test station according to claim 1, feature exist
In：The pressure transmitter (9) is liquid crystal display pressure transmitter.
6. the accurate temperature control water end system of a kind of washing machine performance test station according to claim 1, feature exist
In：The shut-off valve (12) is hand shut-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343823.2A CN108287083A (en) | 2018-04-17 | 2018-04-17 | A kind of accurate temperature control water end system of washing machine performance test station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343823.2A CN108287083A (en) | 2018-04-17 | 2018-04-17 | A kind of accurate temperature control water end system of washing machine performance test station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108287083A true CN108287083A (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810343823.2A Pending CN108287083A (en) | 2018-04-17 | 2018-04-17 | A kind of accurate temperature control water end system of washing machine performance test station |
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| CN (1) | CN108287083A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201340548Y (en) * | 2009-01-23 | 2009-11-04 | 中国人民解放军空军济南航空四站装备修理厂 | Bypass circulation reflux electric adjusting device |
| CN203163222U (en) * | 2013-04-19 | 2013-08-28 | 安徽中家智锐科技有限公司 | Cold and hot water system for detecting and testing washing machine |
| CN204404569U (en) * | 2014-12-18 | 2015-06-17 | 长安大学 | A kind of automatic temperature-controlled solar water heater system |
| CN104729147A (en) * | 2015-03-19 | 2015-06-24 | 合肥天鹅制冷科技有限公司 | Precise control system for liquid supply temperature in heat load |
| CN105422323A (en) * | 2015-12-23 | 2016-03-23 | 吉林大学 | Leading-in device capable of realizing controllable cold and hot EGR (exhaust gas recirculation) |
-
2018
- 2018-04-17 CN CN201810343823.2A patent/CN108287083A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201340548Y (en) * | 2009-01-23 | 2009-11-04 | 中国人民解放军空军济南航空四站装备修理厂 | Bypass circulation reflux electric adjusting device |
| CN203163222U (en) * | 2013-04-19 | 2013-08-28 | 安徽中家智锐科技有限公司 | Cold and hot water system for detecting and testing washing machine |
| CN204404569U (en) * | 2014-12-18 | 2015-06-17 | 长安大学 | A kind of automatic temperature-controlled solar water heater system |
| CN104729147A (en) * | 2015-03-19 | 2015-06-24 | 合肥天鹅制冷科技有限公司 | Precise control system for liquid supply temperature in heat load |
| CN105422323A (en) * | 2015-12-23 | 2016-03-23 | 吉林大学 | Leading-in device capable of realizing controllable cold and hot EGR (exhaust gas recirculation) |
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Application publication date: 20180717 |