CN211087571U - Dehumidifier maintenance skill examination device - Google Patents
Dehumidifier maintenance skill examination device Download PDFInfo
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- CN211087571U CN211087571U CN201920680128.5U CN201920680128U CN211087571U CN 211087571 U CN211087571 U CN 211087571U CN 201920680128 U CN201920680128 U CN 201920680128U CN 211087571 U CN211087571 U CN 211087571U
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- dehumidifier
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Abstract
The utility model discloses a dehumidifier maintenance skill examination device belongs to dehumidifier maintenance skill technical field. This dehumidifier maintenance skill examination device includes: the device comprises a dehumidification unit, a control unit and an intelligent assessment device. The dehumidification unit is in communication connection with the control unit and is used for adjusting the humidity and the temperature of the air under the control of the control unit; the intelligent assessment device is in communication connection with the control unit, performs fault setting under the control of the control unit, and records the fault elimination result and the fault elimination time of the assessed person. Through the utility model discloses, can set up corresponding equipment trouble according to the rank by the examining person, according to by examining person troubleshooting result and time, judge good and bad, record respectively and statistics examination result.
Description
Technical Field
The utility model relates to a dehumidifier maintenance technical field especially relates to a dehumidifier maintenance technical examination device.
Background
In order to maintain a relatively suitable humidity of the space, to keep items, household articles and the like which are easily affected with moisture dry, and to manufacture, produce and store products, medicines and the like which have high requirements on humidity within a required humidity range. The dehumidifier is widely applied to space environments such as medicine, electric power, telecommunication, archives, banks, museums and the like. Due to the fact that the service life of part of components of the dehumidifier expires or the whole operation method is improper, the dehumidifier is damaged and fails. Common faults are refrigerant leakage, filter clogging, electrical insulation breakage, electrical line breakage, motor burning, etc. A large number of dehumidifier maintenance personnel are required to repair a damaged dehumidifier or install a new machine. At present, a plurality of dehumidifier maintenance operation devices exist in the market, but most of the devices only enable trainees to identify dehumidifier parts for the trainees to practice the installation, the disassembly and the operation of the dehumidifier, and most of the devices do not provide a dehumidifier fault setting function and a dehumidifier fault removing function. A small number of devices can provide setting or removing training of individual faults, but the set faults are simple in content and low in practicability. No equipment capable of setting and removing faults and automatically giving evaluation results according to the completion condition of the fault removal exists in the market.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
The utility model aims at solving the above disadvantages existing in the prior art and providing a dehumidifier maintenance skill examination device. The method can not only carry out fault setting and fault elimination, but also automatically give evaluation results according to the completion condition of fault elimination.
(II) technical scheme
In order to solve the problem, the utility model provides a dehumidifier maintenance skill examination device, include: the device comprises a dehumidification unit, a control unit and an intelligent assessment device;
the dehumidification unit is in communication connection with the control unit and is used for adjusting the humidity and the temperature of the air under the control of the control unit; the intelligent assessment device is in communication connection with the control unit, performs fault setting under the control of the control unit, and records the fault elimination result and the fault elimination time of the assessed person.
Further, the dehumidifying unit includes: a compressor, an internal condenser, an expansion valve and an evaporator; the outlet of the compressor is communicated with the inlet of the internal condenser; the outlet of the internal condenser is communicated with the inlet of the expansion valve; an outlet of the expansion valve is communicated with an inlet of the evaporator; the outlet of the evaporator communicates with the inlet of the compressor.
Further, the dehumidifying unit further includes: an oil-liquid separator, an external condenser and a gas-liquid separator; the outlet of the compressor is communicated with the inlet of the inner condenser through the oil-liquid separator and the outer condenser in sequence; the outlet of the evaporator is communicated with the inlet of the compressor through the gas-liquid separator.
Further, the dehumidifying unit further includes: the liquid level monitoring device comprises a first one-way valve, a liquid storage tank, a liquid sight glass, a filter and a second one-way valve; the outlet of the internal condenser is communicated with the inlet of the expansion valve through the first one-way valve, the liquid storage tank, the liquid sight glass and the filter in sequence; the outlet of the outer condenser is divided into two paths, wherein one path is communicated with the inlet of the liquid storage tank through the inner condenser and the first one-way valve in sequence, and the other path is communicated with the inlet of the liquid storage tank through the second one-way valve.
Further, the dehumidifying unit further includes: the system comprises a compressor high-pressure protector, a high-pressure gauge, a first pressure controller, an outer fan, an inner condenser electromagnetic valve, an inner fan, a low-pressure gauge, a compressor low-pressure protector, a second pressure controller and an outer condenser electromagnetic valve; the compressor high-pressure protector, the high-pressure gauge and the first pressure controller are sequentially arranged on a pipeline between the compressor and the oil-liquid separator;
the outer fan is arranged on the outer condenser; the internal condenser electromagnetic valve is arranged on a pipeline of an inlet of the internal condenser; the internal fan is arranged at the inlet of the evaporator and/or the outlet of the internal condenser; the low pressure meter, the compressor low pressure protector and the second pressure controller are sequentially arranged on a pipeline between the evaporator and the gas-liquid separator; the outer condenser solenoid valve is disposed on a pipe between the outer condenser and the second check valve.
Further, the control unit includes: the system comprises a programmable controller, a touch screen and a frequency converter; the touch screen and the frequency converter are in communication connection with the programmable controller; the alternating current input end of the programmable controller is electrically connected with a first power supply, and the alternating current output end of the programmable controller is divided into five paths which are respectively and electrically connected with the inner condenser electromagnetic valve, the outer condenser electromagnetic valve, the alternating current contactor I, the alternating current contactor II and the alternating current contactor III.
Further, the control unit further includes: the air return temperature sensor, the air return humidity sensor, the air supply temperature sensor and the air supply humidity sensor; the return air temperature sensor and the return air humidity sensor are arranged at the inlet of the evaporator; the air supply temperature sensor and the air supply humidity sensor are arranged at the gas outlet of the internal condenser; the return air temperature sensor, the return air humidity sensor, the air supply temperature sensor and the air supply humidity sensor are in communication connection with the programmable controller.
Further, the dehumidifying unit further includes: an inner fan overload protector and an outer fan overload protector; the inner fan overload protector is electrically connected with the inner fan; the outer fan overload protector is electrically connected with the outer fan; the direct current input end of the programmable controller is electrically connected with the compressor high-voltage protector, the compressor low-voltage protector, the inner fan overload protector and the outer fan overload protector respectively, and the direct current output end of the programmable controller is electrically connected with the common end of the programmable controller.
Further, the control unit further includes: circuit breakers and thermal relays; the second power supply is divided into three paths in parallel after passing through the circuit breaker, and the first path is electrically connected with the inner fan through the first alternating current contactor and the inner fan overload protector; the second path is electrically connected with the outer fan through the alternating current contactor II, the outer fan overload protector and the frequency converter; and the third path is electrically connected with the compressor through the alternating current contactor III and the thermal relay.
(III) advantageous effects
The above technical scheme of the utility model has following profitable technological effect: the dehumidifier maintenance skill assessment device comprises a dehumidification unit, a control unit and an intelligent assessment device; the dehumidification unit is used for reducing moisture contained in the air and changing the temperature of the air; the control unit is connected with the dehumidifying unit and used for controlling the dehumidifying unit; the intelligent assessment device is connected with the control unit and used for setting faults, eliminating faults and recording answer results. Faults can be set through the intelligent assessment device, and assessment results are recorded and counted according to the fault removing result and time.
Drawings
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic structural diagram of a dehumidification unit of the present invention;
fig. 3 is a schematic diagram of the control unit of the present invention;
fig. 4 is a circuit diagram of the control unit of the present invention.
Reference numerals:
1. a compressor, 2, a compressor high-pressure protector, 3, a high-pressure gauge, 4, a first pressure controller, 5, an oil-liquid separator, 6, an outer condenser, 7, an outer fan, 8, an inner condenser electromagnetic valve, 9, an inner condenser, 10, a first check valve, 11, a liquid storage tank, 12, a liquid viewing mirror, 13, a filter, 14, an expansion valve, 15, an evaporator, 16, an inner fan, 17, a low-pressure gauge, 18, a compressor low-pressure protector, 19, a second pressure controller, 20, a gas-liquid separator, 21, a second check valve, 22, an outer condenser electromagnetic valve, 31, a touch screen, 32, a programmable controller, 33, a return air temperature sensor, 34, a return air humidity sensor, 35, a supply air temperature sensor, 36, a supply air humidity sensor, 37, an inner fan overload protector, 38, an outer fan overload protector, 43, an alternating current contactor one, 44, an alternating current contactor two, 45. three alternating-current contactors 46, a frequency converter 47, an intelligent checker 51, a breaker 52 and a thermal relay.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present application.
FIG. 1 is a schematic diagram of the present invention;
FIG. 2 is a schematic structural diagram of a dehumidification unit of the present invention;
fig. 3 is a schematic diagram of the control unit of the present invention;
fig. 4 is a circuit diagram of the control unit of the present invention.
Referring to fig. 1, 2, 3 and 4, the utility model provides a dehumidifier maintenance skill assessment device, which comprises a dehumidification unit, a control unit and an intelligent assessment device 47; the dehumidification unit is in communication connection with the control unit and is used for adjusting the humidity and the temperature of the air under the control of the control unit; the intelligent examiner 47 is in communication connection with the control unit, performs fault setting under the control of the control unit, and records the fault elimination result and the fault elimination time of the examinee. The dehumidification unit is used for reducing moisture contained in the air and changing the temperature of the air; the control unit is connected with the dehumidification unit and used for controlling the dehumidification unit; the intelligent assessment device 47 is connected with the control unit and is used for setting faults, eliminating faults and recording answer results.
In the present embodiment, the dehumidifying unit includes a compressor 1, an internal condenser 9, an expansion valve 14, an evaporator 15; the outlet of the compressor 1 is communicated with the inlet of the internal condenser 9, the outlet of the internal condenser 9 is communicated with the inlet of the expansion valve 14, the outlet of the expansion valve 14 is communicated with the inlet of the evaporator 15, and the outlet of the evaporator 15 is communicated with the inlet of the compressor 1.
In the present embodiment, the dehumidifying unit includes a compressor high pressure protector 2, a high pressure gauge 3, a first pressure controller 4, an oil-liquid separator 5, an outer condenser 6, an inner condenser solenoid valve 8, an outer condenser solenoid valve 22, a first check valve 10, a second check valve 21, a liquid reservoir 11, a sight glass 12, a filter 13, a low pressure gauge 17, a compressor low pressure protector 18, a second pressure controller 19, and a gas-liquid separator 20.
Specifically, an outlet of the compressor 1 is communicated with an inlet of an outer condenser 6 through a compressor high-pressure protector 2, a high-pressure gauge 3, a first pressure controller 4 and an oil-liquid separator 5; the outlet of the external condenser 6 is divided into two paths, one path is connected with the electromagnetic valve 8 of the internal condenser, the internal condenser 9 and the first one-way valve 10 in series and then communicated with the inlet of the liquid storage tank 11, and the other path is connected with the electromagnetic valve 22 of the external condenser and the second one-way valve 21 in series and then also communicated with the inlet of the liquid storage tank 11; the liquid observation mirror 12 and the filter 13 are arranged on the pipelines of the outlet of the liquid storage tank 11 and the inlet of the expansion valve 14, the outlet of the expansion valve 14 is communicated with the inlet of the evaporator 15, the outlet of the evaporator 15 is communicated with the inlet of the gas-liquid separator 20 through the low pressure meter 17, the compressor low pressure protector 18 and the second pressure controller 19, and the outlet of the gas-liquid separator 20 is communicated with the inlet of the compressor 1.
In this embodiment, an internal fan 16 is mounted on the air path between the gas inlet of the evaporator 15 and the gas outlet of the internal condenser 9.
In the present embodiment, an external fan 7 is provided on the external condenser 6.
In this embodiment, the control unit includes a programmable controller 32, a touch screen 31, a return air temperature sensor 33, a return air humidity sensor 34, a supply air temperature sensor 35, a supply air humidity sensor 36, an inner fan overload protector 37, an outer fan overload protector 38, a compressor low-voltage protector 18, a compressor high-voltage protector 2, an outer condenser electromagnetic valve 22, an inner condenser electromagnetic valve 8, an ac contactor one 43, an ac contactor two 44, an ac contactor three 45, and a frequency converter 46.
Specifically, the input end of the programmable controller 32 is connected with the output ends of the return air temperature sensor 33, the return air humidity sensor 34, the supply air temperature sensor 35, the supply air humidity sensor 36, the inner fan overload protector 37, the outer fan overload protector 38, the compressor low-voltage protector 18 and the compressor high-voltage protector 2; the input ends of the inner fan overload protector 37, the outer fan overload protector 38, the compressor low-voltage protector 18 and the compressor high-voltage protector 2 are connected with the anode of 24-volt direct current, and the cathode of the 24-volt direct current is connected with the common end of the input end of the programmable controller 32; the output end of the programmable controller 32 is connected with one ends of coils of a first alternating current contactor 43, a second alternating current contactor 44, a third alternating current contactor 45, an inner condenser electromagnetic valve 8 and an outer condenser electromagnetic valve 22, the other ends of the coils of the first alternating current contactor 43, the second alternating current contactor 44, the third alternating current contactor 45, the inner condenser electromagnetic valve 8 and the outer condenser electromagnetic valve 22 are connected with a 220V power phase line, and a 220V power zero line is connected with a common end of the output end of the programmable controller 32; the programmable controller 32 and the touch screen 31 transmit signals in two directions, the touch screen 31 is connected with the cathode and the cathode of 24V direct current, and the output end of the programmable controller 32 is connected with the frequency converter 46.
In the present embodiment, a return air temperature sensor 33 and a return air humidity sensor 34 are installed at the air inlet of the evaporator 15; an air supply temperature sensor 35 and an air supply humidity sensor 36 are mounted on the air outlet of the internal condenser 9.
In this embodiment, the control unit includes a circuit breaker 51, a thermal relay 52, and a 380 v three-phase power supply is divided into three paths after passing through the circuit breaker 51, the first path is connected to the inner fan 16 after passing through the ac contactor one 43 and the inner fan overload protector 37, the second path is connected to the outer fan 7 after passing through the ac contactor two 44, the outer fan overload protector 38 and the frequency converter rear 46, and the third path is connected to the compressor 1 after passing through the ac contactor three 45 and the thermal relay 52.
Specifically, when the dehumidifier skill assessment device is used for assessment, the intelligent assessment device 47 is used for setting various faults and timing the examination; the checked personnel use the equipment and instruments required by the maintenance process of the dehumidifier to overhaul the dehumidifier with the fault, and after the trouble is overhauled, a fault code is input into the intelligent checker 47; the intelligent assessment device 47 compares the set fault with the fault code input by the assessed personnel, and if the answer result is correct, the assessment result is given according to the answer time; if the answer result is wrong, the intelligent assessment device 47 continues to count time and waits for the assessed personnel to input the fault code again.
After inputting the fault code again, the intelligent assessment device 47 compares the set fault with the fault code input by the assessed personnel, and if the answer result is correct, the assessment result is given according to the answer time; if the answer result is wrong, the intelligent assessment device 47 continues to count time and waits for the assessed person to input the fault code for the third time.
After inputting the fault code for the third time, the intelligent assessment device 47 compares the set fault with the fault code input by the assessed personnel, and if the answer result is correct, the assessment result is given according to the answer time; if the answer result is wrong, the answer is stopped, and the result is judged to be unqualified.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (9)
1. A dehumidifier maintenance skill assessment device is characterized by comprising a dehumidification unit, a control unit and an intelligent assessment device (47);
the dehumidification unit is in communication connection with the control unit and is used for adjusting the humidity and the temperature of the air under the control of the control unit;
the intelligent assessment device (47) is in communication connection with the control unit, performs fault setting under the control of the control unit, and records the fault elimination result and the fault elimination time of the assessed person.
2. The dehumidifier repair skill assessment device of claim 1, wherein the dehumidification unit comprises: a compressor (1), an internal condenser (9), an expansion valve (14) and an evaporator (15);
the outlet of the compressor (1) is communicated with the inlet of the internal condenser (9);
the outlet of the internal condenser (9) is communicated with the inlet of the expansion valve (14);
an outlet of the expansion valve (14) is communicated with an inlet of the evaporator (15);
the outlet of the evaporator (15) communicates with the inlet of the compressor (1).
3. The dehumidifier repair skill assessment device of claim 2, wherein the dehumidification unit further comprises: an oil-liquid separator (5), an outer condenser (6) and a gas-liquid separator (20);
the outlet of the compressor (1) is communicated with the inlet of the inner condenser (9) through the oil-liquid separator (5) and the outer condenser (6) in sequence;
the outlet of the evaporator (15) is communicated with the inlet of the compressor (1) through the gas-liquid separator (20).
4. The dehumidifier repair skill assessment device of claim 3, wherein the dehumidification unit further comprises: the device comprises a first one-way valve (10), a liquid storage tank (11), a liquid sight glass (12), a filter (13) and a second one-way valve (21);
an outlet of the internal condenser (9) is communicated with an inlet of the expansion valve (14) through the first one-way valve (10), the liquid storage tank (11), the liquid sight glass (12) and the filter (13) in sequence;
the outlet of the outer condenser (6) is divided into two paths, wherein one path is communicated with the inlet of the liquid storage tank (11) through the inner condenser (9) and the first one-way valve (10) in sequence, and the other path is communicated with the inlet of the liquid storage tank (11) through the second one-way valve (21).
5. The dehumidifier repair skill assessment device of claim 4, wherein the dehumidification unit further comprises: the system comprises a compressor high-pressure protector (2), a high-pressure meter (3), a first pressure controller (4), an outer fan (7), an inner condenser electromagnetic valve (8), an inner fan (16), a low-pressure meter (17), a compressor low-pressure protector (18), a second pressure controller (19) and an outer condenser electromagnetic valve (22);
the compressor high-pressure protector (2), the high-pressure gauge (3) and the first pressure controller (4) are sequentially arranged on a pipeline between the compressor (1) and the oil-liquid separator (5);
the outer fan (7) is arranged on the outer condenser (6);
the internal condenser electromagnetic valve (8) is arranged on a pipeline of an inlet of the internal condenser (9);
the internal fan (16) is arranged at the inlet of the evaporator (15) and/or the outlet of the internal condenser (9);
the low pressure meter (17), the compressor low pressure protector (18) and the second pressure controller (19) are sequentially arranged on a pipeline between the evaporator (15) and the gas-liquid separator (20);
the outer condenser solenoid valve (22) is arranged on the pipeline between the outer condenser (6) and the second one-way valve (21).
6. The dehumidifier repair skill assessment device according to claim 5, wherein the control unit comprises: a programmable controller (32), a touch screen (31) and a frequency converter (46);
the touch screen (31) and the frequency converter (46) are in communication connection with the programmable controller (32);
the alternating current input end of the programmable controller (32) is electrically connected with a first power supply, and the alternating current output end of the programmable controller is divided into five paths which are respectively and electrically connected with the inner condenser electromagnetic valve (8), the outer condenser electromagnetic valve (22), the alternating current contactor I (43), the alternating current contactor II (44) and the alternating current contactor III (45).
7. The dehumidifier repair skill assessment device of claim 6, wherein the control unit further comprises: a return air temperature sensor (33), a return air humidity sensor (34), a supply air temperature sensor (35) and a supply air humidity sensor (36);
the return air temperature sensor (33) and the return air humidity sensor (34) are arranged at the inlet of the evaporator (15);
the air supply temperature sensor (35) and the air supply humidity sensor (36) are arranged at the gas outlet of the internal condenser (9);
and the return air temperature sensor (33), the return air humidity sensor (34), the air supply temperature sensor (35) and the air supply humidity sensor (36) are in communication connection with the programmable controller (32).
8. The dehumidifier repair skill assessment device of claim 7, wherein the dehumidification unit further comprises: an inner fan overload protector (37) and an outer fan overload protector (38);
the inner fan overload protector (37) is electrically connected with the inner fan (16);
the outer fan overload protector (38) is electrically connected with the outer fan (7);
the direct current input end of the programmable controller (32) is respectively electrically connected with the compressor high-voltage protector (2), the compressor low-voltage protector (18), the inner fan overload protector (37) and the outer fan overload protector (38), and the direct current output end of the programmable controller is electrically connected with the public end of the programmable controller (32).
9. The dehumidifier repair skill assessment device of claim 8, wherein the control unit further comprises: a circuit breaker (51) and a thermal relay (52);
the second power supply is divided into three paths after passing through the circuit breaker (51), and the first path is electrically connected with the inner fan (16) through the first AC contactor (43) and the inner fan overload protector (37); the second path is electrically connected with the outer fan (7) through the second alternating current contactor (44), the outer fan overload protector (38) and the frequency converter (46); the third path is electrically connected with the compressor (1) through the AC contactor III (45) and the thermal relay (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920680128.5U CN211087571U (en) | 2019-05-07 | 2019-05-07 | Dehumidifier maintenance skill examination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920680128.5U CN211087571U (en) | 2019-05-07 | 2019-05-07 | Dehumidifier maintenance skill examination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211087571U true CN211087571U (en) | 2020-07-24 |
Family
ID=71624557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920680128.5U Expired - Fee Related CN211087571U (en) | 2019-05-07 | 2019-05-07 | Dehumidifier maintenance skill examination device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211087571U (en) |
-
2019
- 2019-05-07 CN CN201920680128.5U patent/CN211087571U/en not_active Expired - Fee Related
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Granted publication date: 20200724 Termination date: 20210507 |