CN215297537U - Cooler test device with pressure regulating and monitoring protection functions - Google Patents
Cooler test device with pressure regulating and monitoring protection functions Download PDFInfo
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- CN215297537U CN215297537U CN202121528317.4U CN202121528317U CN215297537U CN 215297537 U CN215297537 U CN 215297537U CN 202121528317 U CN202121528317 U CN 202121528317U CN 215297537 U CN215297537 U CN 215297537U
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 47
- 238000012360 testing method Methods 0.000 title claims abstract description 46
- 238000012544 monitoring process Methods 0.000 title claims abstract description 23
- 230000001276 controlling effect Effects 0.000 claims abstract description 19
- 150000001875 compounds Chemical class 0.000 claims description 9
- 230000033228 biological regulation Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
The cooler test device with the pressure regulating and monitoring protection functions comprises a pressure regulating motor driving loop, a cooler driving loop and a control loop; the voltage regulating motor driving loop is provided with normally open main contacts of a contactor KM1 and a contactor KM2 which are respectively used for controlling the voltage regulating motor M to rotate forwards and reversely; the cooler driving circuit comprises a three-phase main circuit, and a voltmeter used for detecting the voltage of the three-phase main circuit is arranged on the three-phase main circuit; the three-phase main circuit is connected with at least one three-phase branch circuit, a current meter for detecting the current of the three-phase branch circuit and a normally open main contact of the contactor for controlling the on-off of the three-phase branch circuit; in the control loop, each three-phase branch is provided with a cooler driving control branch. The utility model can meet the test requirements of coolers with different rated voltages by setting the driving loop of the voltage regulating motor to regulate the test voltage; and simultaneously, the utility model discloses a real-time voltage and the current data in return circuit can be monitored to the testing device, and the security is good.
Description
Technical Field
The utility model relates to a cooler test device especially relates to cooler test device with pressure regulating and monitoring protect function.
Background
Coolers are a class of heat exchange devices that cool a fluid. Water or air is typically used as a coolant to remove heat. The cooler is a heat exchange device commonly used in the industrial departments of metallurgy, chemical industry, energy, traffic, light industry, food and the like.
In the development process of new products of coolers, a prototype machine needs to be tested to ensure the reliability of the products. The test method is that the cooler is usually operated for a period of time under a rated voltage and under a simulated actual working condition, and the test process is qualified if no fault occurs. Different models of coolers often have different voltage ratings, so different test voltages need to be provided for different models of coolers. In addition, during the test of the cooler, if voltage and current are abnormal, the cooler may be damaged, and even safety accidents may be caused. Therefore, there is a need to develop a cooler testing device which can test coolers with different rated voltages and can monitor voltage and current in the testing process.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a cooler test device with pressure regulating and monitoring protect function. The cooler test device with the pressure regulating and monitoring protection functions can meet the test requirements of coolers with different rated voltages by setting the pressure regulating motor driving loop to regulate the test voltage; and simultaneously, the utility model discloses a real-time voltage and the current data in return circuit can be monitored to the testing device, and the security is good.
In order to achieve the above purpose, the utility model provides the following technical scheme:
the cooler test device with the pressure regulating and monitoring protection functions comprises a pressure regulating motor driving loop, a cooler driving loop and a control loop; the voltage regulating motor driving loop is provided with normally open main contacts of a contactor KM1 and a contactor KM2 which are respectively used for controlling the voltage regulating motor M to rotate forwards and reversely; the normally open main contact of the contactor KM1 is closed, and the voltage regulating motor M rotates forwards; the normally open main contact of the contactor KM2 is closed, and the voltage regulating motor M rotates reversely; the cooler driving circuit comprises a three-phase main circuit, and a voltmeter used for detecting the voltage of the three-phase main circuit is arranged on the three-phase main circuit; the three-phase main circuit is connected with at least one three-phase branch circuit, and each three-phase branch circuit is provided with a three-phase socket, a current meter for detecting the current of the three-phase branch circuit and a normally open main contact of the contactor for controlling the on-off of the three-phase branch circuit; in the control loop, each three-phase branch is provided with a cooler driving control branch, and the cooler driving control branch comprises an auxiliary contact and an electromagnetic device of a contactor for controlling the on-off of the three-phase branches, and a normally open automatic reset switch and a normally closed automatic reset switch which are respectively used for starting and stopping the cooler; pressing down a normally-open automatic reset switch to control the electromagnetic devices on the branches to be electrified, and electrifying the corresponding three-phase branches; pressing down a normally closed automatic reset switch to control the electromagnetic device on the branch circuit to be powered off, and powering off the corresponding three-phase branch circuit; the control loop is also provided with a voltage-regulating motor drive control branch, and the voltage-regulating motor drive control branch comprises an electromagnetic device with a contactor KM1 and a contactor KM2, a compound switch SB1 for controlling the motor to rotate forwards and a compound switch SB2 for controlling the motor to rotate backwards; when the compound switch SB1 is pressed down, the electromagnetic device of the contactor KM1 is electrified, the electromagnetic device of the contactor KM2 is powered off, and the voltage regulating motor M rotates forwards; when the combination switch SB2 is pressed, the electromagnetic device of the contactor KM2 is powered on, the electromagnetic device of the contactor KM1 is powered off, and the voltage regulating motor M rotates reversely.
Compared with the prior art, the cooler test device with the pressure regulating and monitoring protection functions adjusts the three-phase main circuit voltage of the cooler driving circuit through the control circuit and the pressure regulating motor driving circuit, so that the cooler driving circuit can provide different test voltages for coolers of different models to complete the test work of the coolers of different rated voltages; meanwhile, the cooler driving circuit is provided with a voltmeter for monitoring the voltage of the three-phase main circuit and an ammeter for monitoring the current of the three-phase branch circuit, real-time voltage and current data of the cooler during working can be monitored, and a worker can master the current working condition of the cooler circuit according to the real-time voltage and current data to judge whether the cooler normally operates or not, so that the danger that the cooler is damaged due to abnormal voltage and current in the test process is avoided, and the safety is good.
As optimizing, among the aforesaid cooler test device with pressure regulating and monitoring protect function, still include the rack cabinet, be equipped with control panel on the cabinet, voltmeter, ampere meter, normally open automatic re-setting switch, normally closed automatic re-setting switch, and blend switch SB1 and blend switch SB2 all locate control panel is last. Therefore, real-time data of the voltmeter and the ammeter can be observed through the control panel, and meanwhile, the start and stop of the cooler can be controlled through a switch arranged on the control panel, and the forward rotation and the reverse rotation of the motor are controlled to realize voltage regulation.
As an optimization, in the cooler test device with the voltage regulation and monitoring protection functions, the cooler driving control branch on the control circuit further includes an indicator light for indicating the power-on condition of the corresponding three-phase branch, the indicator light is connected in parallel with the electromagnetic device of the contactor on the cooler driving control branch, and the indicator light is installed on the control panel. Under the state that cooler drive control branch road is in the circular telegram, can observe corresponding pilot lamp work on control panel for it is comparatively directly perceived to test.
Preferably, the cooler test device with the pressure regulating and monitoring protection functions further comprises an emergency stop button, and the emergency stop button is arranged on a main circuit of the control circuit. When the staff meets emergency, the emergency stop button can be pressed to stop the test, so that the safety of the staff is protected, and unnecessary loss is reduced.
Preferably, in the cooler test device with the pressure regulating and monitoring protection functions, 4 universal wheels are mounted at the bottom of the cabinet. Through setting up 4 universal wheels, make things convenient for the removal of rack and cabinet.
Preferably, in the cooler testing device with the voltage regulating and monitoring protection functions, the three-phase socket is an aviation socket. Because the aviation socket has better electrical property, the aviation socket is selected for use by the three-phase socket.
Drawings
FIG. 1 is a schematic diagram of a chiller test rig with pressure regulation and monitoring protection of the present invention;
fig. 2 is a driving circuit of the voltage regulating motor of the present invention;
FIG. 3 is a chiller drive circuit of the present invention;
fig. 4 is a control loop in the present invention;
fig. 5 is a schematic structural diagram of the cabinet of the present invention;
fig. 6 is a schematic structural diagram of the control panel according to the present invention.
The labels in the figures are: 1-cabinet, 101-control panel, 102-universal wheel.
Detailed Description
The present application will be further described with reference to the following drawings and detailed description (examples), but the present application is not limited thereto. The contents not specifically described below are all common technical knowledge in the art.
Example (see fig. 1-6):
the cooler test device with the pressure regulating and monitoring protection functions comprises a pressure regulating motor driving loop, a cooler driving loop and a control loop; the voltage regulating motor driving loop is provided with normally open main contacts of a contactor KM1 and a contactor KM2 which are respectively used for controlling the voltage regulating motor M to rotate forwards and reversely; the normally open main contact of the contactor KM1 is closed, and the voltage regulating motor M rotates forwards; the normally open main contact of the contactor KM2 is closed, and the voltage regulating motor M rotates reversely; the cooler driving circuit comprises a three-phase main circuit, and a voltmeter used for detecting the voltage of the three-phase main circuit is arranged on the three-phase main circuit; the three-phase main circuit is connected with four three-phase branches (see fig. 3), each three-phase branch is provided with a three-phase socket, a current meter for detecting the current of the three-phase branch and a normally open main contact of a contactor for controlling the on-off of the three-phase branch; in the control loop, each three-phase branch is provided with a cooler driving control branch (see fig. 4), and the cooler driving control branch comprises an auxiliary contact and an electromagnetic device of a contactor for controlling the on-off of the three-phase branch, and a normally open automatic reset switch and a normally closed automatic reset switch for respectively starting and stopping the cooler; pressing down a normally-open automatic reset switch to control the electromagnetic devices on the branches to be electrified, and electrifying the corresponding three-phase branches; pressing down a normally closed automatic reset switch to control the electromagnetic device on the branch circuit to be powered off, and powering off the corresponding three-phase branch circuit; the control loop is also provided with a voltage-regulating motor drive control branch (see fig. 5), the voltage-regulating motor drive control branch comprises an electromagnetic device of a contactor KM1 and a contactor KM2, and a compound switch SB1 for controlling the forward rotation of the motor and a compound switch SB2 for controlling the reverse rotation of the motor; when the compound switch SB1 is pressed down, the electromagnetic device of the contactor KM1 is electrified, the electromagnetic device of the contactor KM2 is powered off, and the voltage regulating motor M rotates forwards; when the combination switch SB2 is pressed, the electromagnetic device of the contactor KM2 is powered on, the electromagnetic device of the contactor KM1 is powered off, and the voltage regulating motor M rotates reversely.
In this embodiment, four three-phase branches (see fig. 3) are connected to the three-phase main path, and each three-phase branch is provided with a three-phase socket, and normally open main contacts 1KM, 2KM, 3KM, and 4KM of a current meter for detecting a current of the three-phase branch and a contactor for controlling on/off of the three-phase branch; in the control loop, each three-phase branch is provided with a cooler driving control branch (see fig. 4), and the control loop also has a voltage regulating motor driving control branch.
In this embodiment, still include rack and cabinet 1, be equipped with control panel 101 on the rack and cabinet 1, voltmeter, ampere meter, normally open automatic re-setting switch, normally closed automatic re-setting switch, and blend switch SB1 and blend switch SB2 all locate on the control panel 101.
In this embodiment, the chiller driving control branch on the control circuit further includes an indicator light for indicating the power-on condition of the corresponding three-phase branch, the indicator light is connected in parallel with the electromagnetic device of the contactor on the chiller driving control branch, and the indicator light is installed on the control panel 101.
In this embodiment, the emergency stop control system further comprises an emergency stop button, and the emergency stop button is arranged on the main path of the control loop.
In this embodiment, 4 universal wheels are installed at the bottom of the chassis cabinet 1.
In this embodiment, the three-phase socket is an aviation socket.
The working principle is as follows:
when the test device works, a three-phase main line of the test device is connected with the output end of the induction voltage regulator, three-phase mains supply of the induction voltage regulator is connected, a voltage regulating motor M on the induction voltage regulator is connected with a voltage regulating motor driving loop of the test device, and the voltage regulator can output different voltages by controlling the forward rotation or the reverse rotation of the voltage regulating motor M, so that the three-phase main line of the test device obtains different test voltages, and the test of coolers with different rated voltages is realized (a power line of the cooler is inserted into a three-phase socket); meanwhile, real-time voltage and current data of the cooler test device are monitored through the ammeter and the voltmeter, and a worker can judge the working condition of the cooler according to the real-time voltage and current data.
The above general description of the invention and the description of its specific embodiments in this application should not be construed as limiting the scope of the invention. Those skilled in the art can add, reduce or combine the technical features disclosed in the general description and/or the specific embodiments (including the examples) to form other technical solutions within the scope of the present application according to the disclosure of the present application without departing from the components of the present invention.
Claims (6)
1. Cooler test device with pressure regulating and monitoring protect function, its characterized in that: the system comprises a voltage regulating motor driving loop, a cooler driving loop and a control loop;
the voltage regulating motor driving loop is provided with normally open main contacts of a contactor KM1 and a contactor KM2 which are respectively used for controlling the voltage regulating motor M to rotate forwards and reversely; the normally open main contact of the contactor KM1 is closed, and the voltage regulating motor M rotates forwards; the normally open main contact of the contactor KM2 is closed, and the voltage regulating motor M rotates reversely;
the cooler driving circuit comprises a three-phase main circuit, and a voltmeter used for detecting the voltage of the three-phase main circuit is arranged on the three-phase main circuit; the three-phase main circuit is connected with at least one three-phase branch circuit, and each three-phase branch circuit is provided with a three-phase socket, a current meter for detecting the current of the three-phase branch circuit and a normally open main contact of the contactor for controlling the on-off of the three-phase branch circuit;
in the control loop, each three-phase branch is provided with a cooler driving control branch, and the cooler driving control branch comprises an auxiliary contact and an electromagnetic device of a contactor for controlling the on-off of the three-phase branches, and a normally open automatic reset switch and a normally closed automatic reset switch which are respectively used for starting and stopping the cooler; pressing down a normally-open automatic reset switch to control the electromagnetic devices on the branches to be electrified, and electrifying the corresponding three-phase branches; pressing down a normally closed automatic reset switch to control the electromagnetic device on the branch circuit to be powered off, and powering off the corresponding three-phase branch circuit;
the control loop is also provided with a voltage-regulating motor drive control branch, and the voltage-regulating motor drive control branch comprises an electromagnetic device with a contactor KM1 and a contactor KM2, a compound switch SB1 for controlling the motor to rotate forwards and a compound switch SB2 for controlling the motor to rotate backwards; when the compound switch SB1 is pressed down, the electromagnetic device of the contactor KM1 is electrified, the electromagnetic device of the contactor KM2 is powered off, and the voltage regulating motor M rotates forwards; when the combination switch SB2 is pressed, the electromagnetic device of the contactor KM2 is powered on, the electromagnetic device of the contactor KM1 is powered off, and the voltage regulating motor M rotates reversely.
2. The chiller test rig with pressure regulation and monitoring protection functions of claim 1, wherein: still include rack and cabinet (1), be equipped with control panel (101) on cabinet (1), voltmeter, ampere meter, normally open automatic re-setting switch, normally closed automatic re-setting switch, and blend switch SB1 and blend switch SB2 all locate on control panel (101).
3. The chiller test rig with pressure regulation and monitoring protection functions of claim 2, wherein: the cooler drive control branch on the control circuit also comprises an indicator light for indicating the electrifying condition of the corresponding three-phase branch, the indicator light is connected in parallel with the electromagnetic device of the contactor on the cooler drive control branch, and the indicator light is installed on the control panel (101).
4. The chiller test rig with pressure regulation and monitoring protection functions of claim 1, wherein: the emergency stop control circuit also comprises an emergency stop button, and the emergency stop button is arranged on the main road of the control circuit.
5. The chiller test rig with pressure regulation and monitoring protection functions of claim 2, wherein: 4 universal wheels are arranged at the bottom of the chassis cabinet (1).
6. The cooler test device with pressure regulating and monitoring protection functions according to any one of claims 1 to 5, characterized in that: the three-phase socket is an aviation socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121528317.4U CN215297537U (en) | 2021-07-06 | 2021-07-06 | Cooler test device with pressure regulating and monitoring protection functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121528317.4U CN215297537U (en) | 2021-07-06 | 2021-07-06 | Cooler test device with pressure regulating and monitoring protection functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215297537U true CN215297537U (en) | 2021-12-24 |
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ID=79520978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121528317.4U Active CN215297537U (en) | 2021-07-06 | 2021-07-06 | Cooler test device with pressure regulating and monitoring protection functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215297537U (en) |
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2021
- 2021-07-06 CN CN202121528317.4U patent/CN215297537U/en active Active
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