CN211122011U - Variable frequency heat pump performance test system - Google Patents
Variable frequency heat pump performance test system Download PDFInfo
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- CN211122011U CN211122011U CN201921845767.9U CN201921845767U CN211122011U CN 211122011 U CN211122011 U CN 211122011U CN 201921845767 U CN201921845767 U CN 201921845767U CN 211122011 U CN211122011 U CN 211122011U
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Abstract
The utility model discloses a frequency conversion heat pump performance test system, including frequency conversion cooling water set, balance water tank return circuit, standard water tank return circuit, environmental condition unit, stoving room, balance water tank return circuit includes balance water tank, balance water tank connects between frequency conversion cooling water set and the unit under test, one side that first ratio three-way valve is close to the unit under test still is equipped with mixed temperature probe, is equipped with first electric heater between the pipeline of first ratio three-way valve and first frequency conversion water pump, first ratio three-way valve is located on the water route of intaking of balance water tank; the variable-frequency heat pump performance testing system achieves different use requirements when testing the heat pump water heater and the air conditioner water cooling and heating machine by organically combining different waterway testing systems, the frequency converter set is more stable in controlling water temperature and ambient temperature, the automatic lifting frequency correspondingly achieves corresponding working conditions, the repeated investment of previous resources is effectively avoided, and the production cost is greatly saved.
Description
Technical Field
The utility model belongs to the technical field of the frequency conversion heat pump, concretely relates to frequency conversion heat pump capability test system.
Background
The traditional test systems for the water circuit test of the variable-frequency heat pump are generally independent from each other, that is, each type of heating and ventilation equipment is provided with a test system configured with the heating and ventilation equipment, and each test system is separated from each other and is not associated with any other test system. And the test frequency conversion system is more complicated, and a large amount of electric auxiliary heating is needed to stabilize the system during the test.
The existing test system has long time for reaching stable balance, causes great energy consumption, large fluctuation and repeated investment of resources, and specifically comprises the following steps: the lack of necessary test equipment or the partial structural overlap of some test systems sometimes fails to meet test requirements or requires even the combination of two or more test systems to complete the job, which is time consuming and costly.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a frequency conversion heat pump capability test system to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a variable frequency heat pump performance test system comprises a variable frequency water chilling unit, a balance water tank loop, a standard water tank loop, an environmental working condition unit and a drying room, wherein the balance water tank loop is connected between the variable frequency water chilling unit and a unit to be tested, the balance water tank loop comprises a balance water tank, the balance water tank is connected between the variable frequency water chilling unit and the unit to be tested, a chilled water pump is arranged between the balance water tank and the variable frequency water chilling unit, a first variable frequency water pump, a first flow meter and a first proportional three-way valve are further arranged on a loop formed by the balance water tank and the unit to be tested, a mixing temperature detection point is further arranged on one side, close to the unit to be tested, of the first proportional three-way valve, a first electric heater is arranged between a pipeline of the first proportional three-way valve and a pipeline of the first variable frequency water pump, and the mixing temperature detection point, the first electric heater, the first proportional three-way valve is arranged on a water inlet waterway of the balance water tank;
the system comprises a standard water tank loop, a first variable frequency water pump, a first electric heater, a second variable frequency water pump, a second electric heater, a standard water tank loop and a room tested unit, wherein the standard water tank loop is connected between a balance water tank and the tested unit and comprises a standard water tank;
the environment working condition unit is connected with the balance water tank, and a first circulating water pump is arranged on a loop;
the drying room is connected with a drying room cooling tower, and a loop of the drying room and the drying room cooling tower is provided with a second circulating water pump;
the balance water tank is connected with the low-temperature room through a pipeline, a second variable-frequency water pump, a second electric heater and a second flowmeter are arranged on a loop of the balance water tank and the low-temperature room, and a second proportional three-way valve is further arranged between the balance water tank of the low-temperature room.
Preferably, the balance water tank is connected with the balance water tank cooling tower, and a second water pump is arranged on a loop of the balance water tank and the balance water tank cooling tower.
Preferably, the environment working condition unit is connected with an environment working condition cooling tower.
Preferably, a PID controller is arranged on a line of one first proportional three-way valve.
Preferably, a second hand valve and a temperature sensor of the unit to be detected are sequentially arranged on the water outlet waterway of the balance water tank close to the unit to be detected, and a temperature sensor and a first hand valve of another unit to be detected are sequentially arranged on the water inlet waterway of the balance water tank close to the unit to be detected.
The utility model discloses a technological effect and advantage: the variable-frequency heat pump performance testing system achieves different use requirements when different waterway testing systems are organically combined to meet the testing of the heat pump water heater and the air conditioner water cooling and heating machine, the frequency converter set is more stable in controlling water temperature and ambient temperature, and the frequency is automatically increased and decreased when corresponding working conditions are correspondingly achieved (the frequency converter has the advantage of frequency conversion, the working conditions are automatically decreased, the use of electric quantity is greatly reduced, the ambient temperature and the fluctuation of the water temperature are approximately kept on the same straight line), the repeated investment of previous resources is effectively avoided, and the production cost is greatly saved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a drying room cooling tower; 2. cooling the tower under the environmental working condition; 3. a balance water tank cooling tower; 4. a balance water tank; 5. a standard water tank; 6. an environmental working condition unit; 7. a variable frequency water chilling unit; 8. a chilled water pump; 9. a first water pump; 10. a second water pump; 11. a first variable frequency water pump; 12. a second variable frequency water pump; 13. A first circulating water pump; 14. a second circulating water pump; 15. a first electric heater; 16. a second electric heater; 17. a first flow meter; 18. a second flow meter; 19. a first proportional three-way valve; 20. a second proportional three-way valve; 21. a first hand valve; 22. a second hand valve; 23. a temperature sensor; 24. mixing the temperature detection points.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a frequency conversion heat pump performance test system as shown in figure 1, which comprises a frequency conversion water chilling unit 7, a balance water tank loop, a standard water tank loop, an environmental condition unit 6 and a drying room, wherein the balance water tank loop is connected between the frequency conversion water chilling unit 7 and a tested unit, the balance water tank loop comprises a balance water tank 4, the balance water tank 4 is connected between the frequency conversion water chilling unit 7 and the tested unit, a chilled water pump 8 is arranged between the balance water tank 4 and the frequency conversion water chilling unit 7, a first frequency conversion water pump 11, a first flow meter 17 and a first ratio three-way valve 19 are arranged on the loop formed by the balance water tank 4 and the tested unit, a mixed temperature detection point 24 is arranged on one side of the first ratio three-way valve 19 close to the tested unit, and a first electric heater 15 is arranged between the first ratio three-way valve 19 and the pipeline of the first frequency conversion water pump, the mixed temperature detection point 24, the first electric heater 15, the first variable frequency water pump 11 and the first flow meter 17 are sequentially arranged on a water outlet waterway of the balance water tank 4, and the first proportional three-way valve 19 is arranged on a water inlet waterway of the balance water tank 4;
the standard water tank loop is connected between the balance water tank 4 and the unit to be tested, the standard water tank loop comprises a standard water tank 5, the standard water tank 5 is connected between the balance water tank 4 and the unit to be tested, a first water pump 9 is arranged on a pipeline between the standard water tank 5 and the balance water tank 4, a connection point of the standard water tank 5 is arranged between a first variable frequency water pump 11 and a first electric heater 15, and the other connection point of the standard water tank 5 is arranged on the unit to be tested in a room;
the environmental working condition unit 6 is connected with the balance water tank 4, and a first circulating water pump 13 is arranged on a loop;
the drying room is connected with the drying room cooling tower 1, and a loop of the drying room and the drying room cooling tower 1 is provided with a second circulating water pump 14;
the balance water tank 4 is further connected with the low-temperature room through a pipeline, a second variable-frequency water pump 12, a second electric heater 16 and a second flowmeter 18 are arranged on a loop of the balance water tank 4 and the low-temperature room, and a second proportional three-way valve 20 is further arranged between the balance water tank 4 of the low-temperature room.
The balance water tank 4 is connected with the balance water tank cooling tower 3, and a second water pump 10 is arranged on a loop of the balance water tank 4 and the balance water tank cooling tower 3.
And the environment working condition unit 6 is connected with the environment working condition cooling tower 2.
And a PID controller is arranged on a circuit of one first proportional three-way valve (19).
A second hand valve 22 and a temperature sensor 23 of the unit to be detected are sequentially arranged on the water outlet waterway of the balance water tank 4 close to the unit to be detected, and a temperature sensor 23 and a first hand valve 21 of another unit to be detected are sequentially arranged on the water inlet waterway of the balance water tank 4 close to the unit to be detected.
When the unit to be tested needs to be heated circularly, the water temperature of the balance water tank 4 is properly adjusted through the variable-frequency water chilling unit 7, and then the proper flow is adjusted through the first variable-frequency water pump 11; when the tested unit needs to test other performances, the system adjusts the return water temperature through the proportional tee joint, and then adjusts the proper flow through the first variable frequency water pump 11;
the system can meet different use requirements during testing of the heat pump water heater and the air conditioner water cooler by organically combining different waterway (balance water tank loop and standard water tank loop) testing systems, and compared with the prior art, the system effectively avoids repeated investment of the previous resources and greatly saves the production cost; additionally, the utility model discloses a proportion three-way valve that adds has by-passed some water to corresponding mainstream pipeline when the test in, so both can reduce the use of cooling tower fan, has also reduced heating water tank's heating power simultaneously to can reach energy-conserving province beneficial effect who consumes.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (5)
1. The utility model provides a frequency conversion heat pump capability test system, includes frequency conversion cooling water set (7), balanced water tank return circuit, standard water tank return circuit, environment operating mode unit (6), stoving room, its characterized in that: the water quality testing device is characterized in that the balance water tank loop is connected between the variable-frequency water chilling unit (7) and the tested unit, the balance water tank loop comprises a balance water tank (4), the balance water tank (4) is connected between the variable-frequency water chilling unit (7) and the tested unit, a freezing water pump (8) is arranged between the balance water tank (4) and the variable-frequency water chilling unit (7), a first variable-frequency water pump (11), a first flowmeter (17) and a first proportional three-way valve (19) are further arranged on a loop formed by the balance water tank (4) and the tested unit, a mixed temperature detection point (24) is further arranged on one side, close to the tested unit, of the first proportional three-way valve (19), a first electric heater (15) is arranged between pipelines of the first proportional three-way valve (19) and the first variable-frequency water pump (11), and a first electric heater (15) is arranged between the mixed temperature detection point (, The first flowmeter (17) is sequentially arranged on a water outlet waterway of the balance water tank (4), and the first proportional three-way valve (19) is arranged on a water inlet waterway of the balance water tank (4);
the standard water tank loop is connected between the balance water tank (4) and the unit to be tested, the standard water tank loop comprises a standard water tank (5), the standard water tank (5) is connected between the balance water tank (4) and the unit to be tested, a first water pump (9) is arranged on a pipeline between the standard water tank (5) and the balance water tank (4), a connection point of the standard water tank (5) is arranged between the first variable frequency water pump (11) and the first electric heater (15), and the other connection point of the standard water tank (5) is arranged on the unit to be tested in a room;
the environment working condition unit (6) is connected with the balance water tank (4), and a first circulating water pump (13) is arranged on a loop;
the drying room is connected with a drying room cooling tower (1), and a loop of the drying room and the drying room cooling tower (1) is provided with a second circulating water pump (14);
the balance water tank (4) is connected with the low-temperature room through a pipeline, a second variable-frequency water pump (12), a second electric heater (16) and a second flowmeter (18) are arranged on a loop of the balance water tank (4) and the low-temperature room, and a second proportional three-way valve (20) is further arranged between the balance water tank (4) of the low-temperature room.
2. The variable frequency heat pump performance testing system of claim 1, wherein: the balance water tank (4) is connected with the balance water tank cooling tower (3), and a second water pump (10) is arranged on a loop of the balance water tank (4) and the balance water tank cooling tower (3).
3. The variable frequency heat pump performance testing system of claim 1, wherein: and the environment working condition unit (6) is connected with the environment working condition cooling tower (2).
4. The variable frequency heat pump performance testing system of claim 1, wherein: and a PID controller is arranged on a circuit of one first proportional three-way valve (19).
5. The variable frequency heat pump performance testing system of claim 1, wherein: the water outlet waterway of the balance water tank (4) is also sequentially provided with a second hand valve (22) and a temperature sensor (23) of the unit to be detected, and the water inlet waterway of the balance water tank (4) is also sequentially provided with another temperature sensor (23) of the unit to be detected and a first hand valve (21) near the unit to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921845767.9U CN211122011U (en) | 2019-10-30 | 2019-10-30 | Variable frequency heat pump performance test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921845767.9U CN211122011U (en) | 2019-10-30 | 2019-10-30 | Variable frequency heat pump performance test system |
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| CN211122011U true CN211122011U (en) | 2020-07-28 |
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| CN201921845767.9U Active CN211122011U (en) | 2019-10-30 | 2019-10-30 | Variable frequency heat pump performance test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929088A (en) * | 2020-07-30 | 2020-11-13 | 广东纽恩泰新能源科技发展有限公司 | High-efficiency energy-saving air source heat pump water chilling unit testing system and method |
-
2019
- 2019-10-30 CN CN201921845767.9U patent/CN211122011U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111929088A (en) * | 2020-07-30 | 2020-11-13 | 广东纽恩泰新能源科技发展有限公司 | High-efficiency energy-saving air source heat pump water chilling unit testing system and method |
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