Heat pump unit performance testing device

Abstract

The utility model relates to the technical field of heat pump machine performance testing, and particularly discloses a heat pump unit performance testing device which comprises an installation mechanism, the installation mechanism comprises a testing table and a testing bin arranged on one surface of the testing table, a heat pump machine body and a power source are installed in the testing bin, and a wire is arranged between the heat pump machine body and the power source. A power detection meter is installed on one side face of the test board and electrically connected with the power source, the test mechanism comprises a water outlet pipe and a water inlet pipe which are arranged on the heat pump body, a first detection pipe and a second detection pipe are arranged on one side face of the test board, and temperature sensors are arranged on the circumferential side faces of the first detection pipe and the second detection pipe; according to the device, the test bench with the test bin is arranged, so that the influence of differences of wind power and air quality in different regions on test results can be avoided in the test process, variables in test operation are reduced, and the accuracy of the test results is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat pump performance testing, and in particular relates to a device for testing the performance of a heat pump unit. Background Art

[0002] A heat pump is a device that uses the heat pump principle to heat or cool. It extracts heat from a low-temperature environment and releases it into a high-temperature environment through a reverse thermodynamic cycle. Heat pumps are widely used in air conditioning, heating, hot water supply and other fields. The energy efficiency ratio of a heat pump is an important indicator to measure its energy efficiency. It indicates the ratio between the heat energy output by the heat pump and the electrical energy it consumes.

[0003] In the test of energy efficiency data, the wind speed, impurities and pollution conditions in the air are different in different regions, and these variables will affect the actual power consumption of the heat pump. This will cause the data measured by the same machine in different regions to be different, making the data inaccurate.

[0004] Therefore, those skilled in the art have proposed a device for testing the performance of a heat pump unit to solve the problems raised by the background technology.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the utility model, therefore, it may include prior art that is not known to ordinary technicians in the field. Utility Model Content

[0006] The utility model aims to provide a device for testing the performance of a heat pump unit to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A device for testing the performance of a heat pump unit, comprising:

[0009] An installation mechanism, the installation mechanism includes a test bench and a test chamber opened on a surface of the test bench, a heat pump body and a power supply are installed in the test chamber, a wire is provided between the heat pump body and the power supply, the heat pump body is electrically connected to the power supply through the wire, and an electric power detection meter is installed on a side of the test bench, and the electric power detection meter is electrically connected to the power supply;

[0010] The testing mechanism includes a water outlet pipe and a water inlet pipe arranged on the heat pump body, a first detection tube and a second detection tube are arranged on one side of the test bench, the first detection tube and the second detection tube are respectively connected to the water outlet pipe and the water inlet pipe, and temperature sensors are arranged on the surrounding sides of the first detection tube and the second detection tube.

[0011] Preferably, a circular groove is opened on one side of the testing chamber, an installation chamber is fixedly arranged inside the circular groove, a fan is arranged on one side of the installation chamber, and an air filter is arranged on the other side of the installation chamber.

[0012] Preferably, a wind direction sensing device is provided on the upper surface of the test bench, and a mounting frame is fixedly connected to the lower surface of the heat pump body.

[0013] Preferably, a first flange is provided between the water outlet pipe and the first detection pipe, a second flange is provided between the water inlet pipe and the second detection pipe, the water outlet pipe is connected to the first detection pipe through the first flange, and the water inlet pipe is connected to the second detection pipe through the second flange.

[0014] Preferably, the heat pump body includes a condenser, a compressor, an evaporator and an expansion valve, a first connecting pipe and a second connecting pipe are connected between the condenser and the evaporator, the compressor is installed on the first connecting pipe, and the expansion valve is installed on the second connecting pipe.

[0015] Preferably, the condenser comprises a hot water outlet and a cold water inlet, the hot water outlet is connected to the water outlet pipe, and the cold water inlet is connected to the water inlet pipe.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) The utility model provides a test bench with a test chamber. When the energy efficiency ratio parameters of the heat pump body need to be tested, the heat pump body to be tested and the power supply for power supply can be placed in the test chamber, and a wind direction sensing device is installed above the test bench. According to the wind direction sensed by the wind direction sensing device, the test chamber is rotated to a state facing the leeward side. At this time, normal contact with the outside air can be ensured without being affected by changes in wind speed. The fan is started to deliver uniformly flowing air to the test chamber. At the same time, the air filter installed in the chamber can filter out impurities and pollutants in the air, thereby preventing the impurities and pollutants in the air from affecting the accuracy of the test results. At this time, the heat pump body is started to work. According to the temperature difference measured by the temperature sensor on the first detection tube and the second detection tube, and the power consumption of the whole machine measured by the power detection meter, the energy efficiency ratio parameters of the heat pump body can be calculated. During the test process, the differences in wind force and air quality in different regions can be avoided from affecting the test results, reducing the variables in the test operation, thereby improving the accuracy of the test results.

[0018] (2) The utility model installs a first detection tube and a second detection tube on a test bench, and respectively connects the first detection tube and the second detection tube to a water outlet pipe and a water inlet pipe on a heat pump body. The first detection tube and the second detection tube used are retractable flexible corrugated tubes, which can adapt to the pipeline layout of heat pump bodies of different models and specifications.

[0019] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0021] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0022] Figure 3 It is a front view of the utility model;

[0023] Figure 4 It is a schematic diagram of the internal structure of the heat pump body of the utility model.

[0024] In the figure: 1. test bench; 2. test chamber; 3. heat pump body; 4. power supply; 5. wind direction sensing device; 6. mounting frame; 7. wire; 8. mounting chamber; 9. fan; 10. air filter; 11. power detection meter; 12. water outlet pipe; 13. water inlet pipe; 14. first flange; 15. second flange; 16. first detection tube; 17. second detection tube; 18. temperature sensor; 19. condenser; 20. compressor; 21. evaporator; 22. expansion valve; 23. first connecting pipe; 24. second connecting pipe; 25. hot water outlet; 26. cold water inlet. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Embodiment 1:

[0027] See also Figure 1-Figure 4 As shown, a device for testing the performance of a heat pump unit comprises:

[0028] The installation mechanism includes a test bench 1 and a test chamber 2 opened on a surface of the test bench 1, a heat pump body 3 and a power supply 4 are installed in the test chamber 2, a wire 7 is provided between the heat pump body 3 and the power supply 4, the heat pump body 3 is electrically connected to the power supply 4 through the wire 7, and an electric power detection meter 11 is installed on a side of the test bench 1, and the electric power detection meter 11 is electrically connected to the power supply 4;

[0029] The testing mechanism includes a water outlet pipe 12 and a water inlet pipe 13 arranged on the heat pump body 3. A first detection tube 16 and a second detection tube 17 are arranged on one side of the test bench 1. The first detection tube 16 and the second detection tube 17 are respectively connected to the water outlet pipe 12 and the water inlet pipe 13. Temperature sensors 18 are arranged on the sides of the first detection tube 16 and the second detection tube 17.

[0030] Specifically, a circular groove is opened on one side of the test chamber 2, and a mounting chamber 8 is fixedly arranged inside the circular groove. A fan 9 is arranged on one side of the mounting chamber 8, and an air filter 10 is arranged on the other side of the mounting chamber 8.

[0031] Specifically, a wind direction sensing device 5 is disposed on the upper surface of the test bench 1 , and a mounting frame 6 is fixedly connected to the lower surface of the heat pump body 3 .

[0032] As can be seen from the above, the device is provided with a test bench 1 with a test chamber 2. When the energy efficiency ratio parameters of the heat pump body 3 need to be tested, the heat pump body 3 to be tested and the power supply 4 for power supply can be placed in the test chamber 2, and a wind direction sensing device 5 is installed above the test bench 1. According to the wind direction sensed by the wind direction sensing device 5, the test chamber 2 is rotated to a state facing the leeward side. At this time, it can ensure normal contact with the outside air without being affected by the change of wind speed. The fan 9 is started to deliver uniformly flowing air to the test chamber 2. At the same time, the air filter 10 in the installation chamber 8 can remove impurities and pollutants in the air. By filtering out pollutants, it is possible to prevent impurities and pollutants in the air from affecting the accuracy of the test results. At this time, the heat pump body 3 is started to work. According to the temperature difference measured by the temperature sensor 18 on the first detection tube 16 and the second detection tube 17, and the power consumption of the whole machine measured by the power detection meter 11, the energy efficiency ratio parameters of the heat pump body 3 can be calculated. During the test process, it is possible to prevent the differences in wind speed and air quality in different regions from affecting the test results, reduce the variables in the test operation, and thus improve the accuracy of the test results. The air filter 10 used is a filtering structure with mesh holes and activated carbon.

[0033] Embodiment 2:

[0034] See also Figure 1-Figure 4As shown, a first flange 14 is provided between the water outlet pipe 12 and the first detection pipe 16 , and a second flange 15 is provided between the water inlet pipe 13 and the second detection pipe 17 . The water outlet pipe 12 is connected to the first detection pipe 16 through the first flange 14 , and the water inlet pipe 13 is connected to the second detection pipe 17 through the second flange 15 .

[0035] Specifically, the heat pump body 3 includes a condenser 19, a compressor 20, an evaporator 21 and an expansion valve 22. A first connecting pipe 23 and a second connecting pipe 24 are connected between the condenser 19 and the evaporator 21. The compressor 20 is installed on the first connecting pipe 23, and the expansion valve 22 is installed on the second connecting pipe 24.

[0036] Specifically, the condenser 19 includes a hot water outlet 25 and a cold water inlet 26 . The hot water outlet 25 is connected to the water outlet pipe 12 , and the cold water inlet 26 is connected to the water inlet pipe 13 .

[0037] As can be seen from the above, the device installs the first detection tube 16 and the second detection tube 17 on the test bench 1, and respectively connects the first detection tube 16 and the second detection tube 17 to the water outlet pipe 12 and the water inlet pipe 13 on the heat pump body 3. The first detection tube 16 and the second detection tube 17 used are retractable flexible corrugated tubes, which can adapt to the pipeline layout of heat pump bodies 3 of different models and specifications.

[0038] The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0039] In the description of the present utility model, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. The meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0043] In the drawings of the embodiments disclosed by the present invention, only the structures related to the embodiments disclosed by the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for testing the performance of a heat pump unit, characterized in that: include: An installation mechanism, the installation mechanism comprising a test bench (1) and a test chamber (2) provided on a surface of the test bench (1), a heat pump body (3) and a power supply (4) being installed in the test chamber (2), a wire (7) being provided between the heat pump body (3) and the power supply (4), the heat pump body (3) being electrically connected to the power supply (4) via the wire (7), and an electric power detection meter (11) being installed on a side surface of the test bench (1), the electric power detection meter (11) being electrically connected to the power supply (4); A testing mechanism, the testing mechanism comprising a water outlet pipe (12) and a water inlet pipe (13) arranged on a heat pump body (3); a first detection tube (16) and a second detection tube (17) are arranged on one side of the testing platform (1); the first detection tube (16) and the second detection tube (17) are connected to the water outlet pipe (12) and the water inlet pipe (13) respectively; and temperature sensors (18) are arranged on the sides of the first detection tube (16) and the second detection tube (17).

2. A heat pump unit performance testing device according to claim 1, characterized in that: A circular groove is provided on one side of the interior of the test chamber (2), a mounting chamber (8) is fixedly arranged inside the circular groove, a fan (9) is arranged on one side of the mounting chamber (8), and an air filter (10) is arranged on the other side of the mounting chamber (8).

3. A heat pump unit performance testing device according to claim 1, characterized in that: A wind direction sensing device (5) is provided on the upper surface of the test bench (1), and a mounting frame (6) is fixedly connected to the lower surface of the heat pump body (3).

4. A heat pump unit performance testing device according to claim 1, characterized in that: A first flange (14) is provided between the water outlet pipe (12) and the first detection pipe (16), and a second flange (15) is provided between the water inlet pipe (13) and the second detection pipe (17); the water outlet pipe (12) is connected to the first detection pipe (16) via the first flange (14), and the water inlet pipe (13) is connected to the second detection pipe (17) via the second flange (15).

5. A heat pump unit performance testing device according to claim 1, characterized in that: The heat pump body (3) comprises a condenser (19), a compressor (20), an evaporator (21) and an expansion valve (22); a first connecting pipe (23) and a second connecting pipe (24) are connected between the condenser (19) and the evaporator (21); the compressor (20) is mounted on the first connecting pipe (23), and the expansion valve (22) is mounted on the second connecting pipe (24).

6. A heat pump unit performance testing device according to claim 5, characterized in that: The condenser (19) comprises a hot water outlet (25) and a cold water inlet (26); the hot water outlet (25) is connected to the water outlet pipe (12), and the cold water inlet (26) is connected to the water inlet pipe (13).

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