Heat pump heating efficiency test system

Abstract

The utility model provides a heat pump heating efficiency test system. The system comprises a control terminal; the at least two heating peripherals comprise a plurality of temperature detection devices, and the temperature detection devices are electrically connected with the control terminal; a control line of the heat pump terminal is electrically connected with the control terminal; a hot water circulating pipeline is connected with a heating peripheral; and the circulation test terminal comprises a switch and a flow meter which are respectively arranged on the hot water circulation pipeline, and the switch and the flow meter are electrically connected with the control terminal. According to the heat pump heating efficiency test system provided by the embodiment of the utility model, the temperature monitoring device and the switch are used for setting the target temperature and the flow of the heating peripheral, then the control terminal controls the heat pump terminal to stop working, and multiple tests are carried out by selecting multiple flows, so that the test efficiency is improved. Therefore, the heating efficiency of the heat pump terminal can be accurately judged.

Description

Technical Field

[0001] The utility model relates to the technical field of water pumps, in particular to a heat pump heating efficiency testing system. Background Art

[0002] A heat pump is a device that transfers heat energy between a high-temperature object and a low-temperature object. The transfer method can be circulating water, for example, the heat pump allows circulating water to flow through the floor heating coil or radiator in the room to achieve heat exchange. However, in actual use, due to the different areas of the house, the heat pump needs to supply water at different flow rates. Different flow rates will cause the heat pump and the heat pump outdoor unit to heat the hot water at different times. Therefore, it is impossible to evaluate the working efficiency of the heat pump from the perspective of temperature or flow alone. Therefore, a heating efficiency test system based on flow rate is needed. Utility Model Content

[0003] The utility model provides a heat pump heating efficiency testing system, which aims to detect the heating efficiency of the heat pump on hot water so as to evaluate the working efficiency of the heat pump.

[0004] The utility model provides a heat pump heating efficiency test system, comprising:

[0005] Control terminal;

[0006] At least two heating peripherals, including a plurality of temperature detection devices, the temperature detection devices being electrically connected to the control terminal;

[0007] The heat pump terminal is electrically connected to the control terminal; a hot water circulation pipeline is provided, and the hot water circulation pipeline is connected to the heating peripheral device;

[0008] The circulation test terminal includes a switch and a flow meter, which are respectively arranged in the hot water circulation pipeline, and the switch and the flow meter are electrically connected to the control terminal.

[0009] Optionally, the hot water circulation pipeline includes a water outlet pipeline and a water inlet pipeline.

[0010] Optionally, a switch and a flow meter are arranged on the water outlet pipeline.

[0011] Optionally, a manifold is also included;

[0012] The manifold includes a first manifold and a second manifold; the first manifold is connected to the water outlet pipeline to supply water to at least two heating peripherals;

[0013] The second manifold is connected to the water inlet pipeline and is used to collect water for at least two heating peripherals.

[0014] Optionally, the temperature detection device is a temperature sensor.

[0015] Optionally, the heat pump terminal includes a heat pump outdoor unit and a heat pump arranged inside the heat pump outdoor unit.

[0016] Optionally, the water outlet pipeline and the water inlet pipeline are respectively connected to the heat pump.

[0017] The embodiment of the utility model provides a heat pump heating efficiency testing system, which uses a temperature monitoring device and a switch to set the target temperature and flow rate of the heating peripheral device, and then the control terminal controls the heat pump terminal to stop working. By selecting multiple flow rates for multiple tests, the working efficiency of the heat pump terminal can be accurately judged. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a heat pump heating efficiency testing system provided in an embodiment of the utility model.

[0019] In the figure: 01, control terminal; 02, heating peripherals; 03, temperature detection device; 04, heat pump terminal; 05, hot water circulation pipeline; 06, circulation test terminal; 07, switch; 08, flow meter; 09, water outlet pipeline; 10, water inlet pipeline; 11, manifold; 12, first manifold; 13, second manifold; 14, heat pump outdoor unit; 15, heat pump. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0021] The existing heat pumps require different heating areas during actual use, which results in different flow rates of circulating fluid supplied by the heat pumps. This also leads to differences in the heating efficiency required for the circulating fluid to reach the expected temperature. This difference affects the judgment of the heat pump's working efficiency to a certain extent. Therefore, a test system that can accurately evaluate the heat pump's heating efficiency is needed.

[0022] Embodiment 1

[0023] In view of the above shortcomings, the utility model provides a heat pump heating efficiency testing system, such as Figure 1 As shown, including:

[0024] Control terminal 01; the control terminal 01 may be a device with control function such as a single chip microcomputer or a PLC, which is used to control the heat pump terminal 04 and the circulation test terminal 06 to put them in working or non-working state.

[0025] At least two heating peripherals 02 include multiple temperature detection devices 03, and the temperature detection devices 03 are electrically connected to the control terminal 01; the heating peripheral 02 can be a floor heating coil or a radiator installed indoors, and whether it is a floor heating coil or a radiator, the temperature detection device 03 used, such as a temperature sensor, can send feedback information to the control terminal 01 whether the temperature of the heating peripheral 02 reaches a preset temperature; the preset temperature is pre-set by the control terminal 01 when the heat pump terminal 04 starts working and has not started heating, and the setting is based on the current temperature of the heating peripheral 02 and the current flow rate of circulating water.

[0026] The heat pump terminal 04 is electrically connected to the control terminal 01 ; a hot water circulation pipeline 05 is provided, and the hot water circulation pipeline 05 is connected to the heating peripheral 02 ; the heat pump terminal 04 includes a heat pump outdoor unit 14 and a heat pump 15 arranged inside the heat pump outdoor unit 14 .

[0027] The circulation test terminal 06 includes a switch 07 and a flow meter 08, which are respectively arranged on the hot water circulation pipeline 05. The switch 07 and the flow meter 08 are electrically connected to the control terminal 01. The hot water circulation pipeline 05 includes an outlet pipeline 09 and an inlet pipeline 10, and the outlet pipeline 09 and the inlet pipeline 10 are respectively connected to the heat pump 15. The heat pump outdoor unit 14 is used to heat the circulating water, and the heat pump 15 transports the heated circulating water to the heating peripheral 02 through the outlet pipeline 09, and collects the circulating water with the lowered temperature through the inlet pipeline 10. The switch 07 can be an electric gate valve, which is closer to the heat pump 15 than the flow meter 08. The purpose of this setting is to ensure that the flow meter 08 can perform accurate measurements.

[0028] In a preferred embodiment, the water outlet pipe 09 and the water inlet pipe 10 are coiled at the heating peripheral 02 to form a floor heating coil. And because multiple floor heating coils may be required in the case of indoor heating, multiple water outlet pipes 09 and water inlet pipes 10 are also required to be connected to the heat pump 15. Therefore, the above-mentioned heat pump 15 heating efficiency test system also includes a manifold 11;

[0029] The manifold 11 includes a first manifold 12 and a second manifold 13; the first manifold 12 is connected to the water outlet pipeline 09 to supply water to at least two heating peripherals 02;

[0030] The second manifold 13 is connected to the water inlet pipeline 10 and is used to collect water for at least two heating peripherals 02 .

[0031] The utility model provides a heat pump heating efficiency testing system, which obtains the temperature of a heating peripheral device and the flow rate of circulating water through a control terminal, and uses this to control the heat pump terminal to start working, utilizes the heat pump to continuously heat the circulating water and delivers it to the heating peripheral device, and continuously detects through a temperature detection device until a preset temperature is reached, after which the control terminal controls the heat pump terminal to stop working, and performs multiple tests by selecting multiple flow rates, thereby accurately judging the heating efficiency of the heat pump terminal.

[0032] Embodiment 2

[0033] Based on the first embodiment, the working process of the heat pump heating efficiency test system is as follows:

[0034] When the heat pump terminal has not yet heated the circulating water, the control terminal pre-sets the temperature to be reached by the heating peripheral device, and before pre-setting, the temperature detection device (sensor) of the heating peripheral device is used to detect the current temperature and the flow rate of the circulating water is detected by the flow meter;

[0035] The control terminal then starts the heating function of the heat pump terminal, and uses the manifold to output the circulating water to different heating peripherals. Since the heating peripherals are actually connected by an outlet pipeline and an inlet pipeline and their shapes are adjusted according to actual conditions, another manifold can also be used to collect the circulating water after heating and return it to the heat pump terminal.

[0036] When the preset temperature is reached, the control terminal will stop the heating operation of the heating terminal according to the feedback from the sensor. And according to the changes in flow rate and temperature, a flow-temperature relationship curve under the flow rate is drawn;

[0037] It should be added that the flow rate of the circulating water can be changed before the temperature is preset, and the flow rate-temperature relationship curve under this flow rate can be obtained after the preset temperature is reached. In this way, multiple tests under different flow rates can be performed.

[0038] The solution provided in the embodiment of the utility model adopts the heat pump heating efficiency testing system provided in the aforementioned embodiment, adopts the same technical means, and achieves the same technical effect, which will not be repeated here.

[0039] Some directional words are defined in the present utility model. Unless otherwise specified, the directional words used, such as "up", "down", "left", "right", "inside" and "outside", are used for ease of understanding and therefore do not constitute limitations on the protection scope of the present utility model.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" 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.

Claims

1. A heat pump heating efficiency test system, characterized in that: include: Control terminal (01); At least two heating peripherals (02), including a plurality of temperature detection devices (03), wherein the temperature detection devices (03) are electrically connected to the control terminal (01); A heat pump terminal (04) is electrically connected to the control terminal (01); a hot water circulation pipeline (05) is provided, and the hot water circulation pipeline (05) is connected to the heating peripheral device (02); The circulation test terminal (06) includes a switch (07) and a flow meter (08), which are respectively arranged on the hot water circulation pipeline (05), and the switch (07) and the flow meter (08) are electrically connected to the control terminal (01).

2. The heat pump heating efficiency test system according to claim 1, characterized in that: The hot water circulation pipeline (05) comprises a water outlet pipeline (09) and a water inlet pipeline (10).

3. The heat pump heating efficiency testing system according to claim 2, characterized in that: The switch (07) and the flow meter (08) are arranged on the water outlet pipeline (09).

4. The heat pump heating efficiency testing system according to claim 2, characterized in that: It also includes a manifold (11); The manifold (11) comprises a first manifold (12) and a second manifold (13); the first manifold (12) is connected to the water outlet pipeline (09) to supply water to the at least two heating peripherals (02); The second water collector (13) is connected to the water inlet pipeline (10) and is used to collect water for the at least two heating peripheral devices (02).

5. The heat pump heating efficiency testing system according to claim 1, characterized in that: The temperature detection device (03) is a temperature sensor.

6. The heat pump heating efficiency testing system according to claim 2, characterized in that: The heat pump terminal (04) comprises a heat pump outdoor unit (14) and a heat pump (15) arranged inside the heat pump outdoor unit (14).

7. The heat pump heating efficiency testing system according to claim 6, characterized in that: The water outlet pipeline (09) and the water inlet pipeline (10) are respectively connected to the heat pump (15).

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