Refrigerating power verification system of constant-power water cooler

Abstract

The utility model provides a refrigeration power verification system for a constant-power water cooler. The refrigeration power verification system comprises a verification container, a constant-power water cooler to be verified, a heating assembly and a circulation pipeline, a liquid outlet of the verification container is connected with a liquid inlet of the to-be-verified constant-power water cooling machine through the circulation pipeline, and a liquid outlet of the to-be-verified constant-power water cooling machine is connected with a liquid inlet of the verification container through the circulation pipeline; a heating cavity is formed in the verification container, the heating assembly is arranged in the heating cavity, and the power of the heating assembly is the same as that of the constant-power water cooler to be verified; the liquid inlet and the liquid outlet of the to-be-verified constant-power water cooling machine are respectively provided with a temperature sensor. The refrigeration power verification system of the constant-power water cooler overcomes the defect that an existing refrigeration power verification system of the constant-power water cooler is not suitable for special working environment requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of refrigeration performance testing, in particular to a refrigeration power verification system for a constant power water cooling mechanism. Background Art

[0002] The constant power water chiller cooling power verification system is a system specially designed to test and verify the performance and efficiency of power equipment during operation, especially for equipment that relies on cooling water systems to maintain a stable operating temperature, such as power battery packs, electric motors and other large power equipment.

[0003] In the prior art, most constant power water chiller refrigeration power verification systems use temperature sensors at the inlet and outlet of the loop to collect the pipe temperature, and perform power verification in combination with the power formula. However, the existing constant power water chiller refrigeration power verification system is not suitable for special working environment requirements, and the method of collecting data and calculating by formula is prone to errors, resulting in low test accuracy. Utility Model Content

[0004] The utility model provides a constant power water cooling mechanism refrigeration power verification system, which is used to solve the defect that the existing constant power water cooling mechanism refrigeration power verification system is not suitable for special working environment requirements.

[0005] The utility model provides a refrigeration power verification system for a constant power water cooler, comprising: a verification container, a constant power water cooler to be verified, a heating component and a circulation pipeline; the liquid outlet of the verification container is connected with the liquid inlet of the constant power water cooler to be verified through the circulation pipeline, and the liquid outlet of the constant power water cooler to be verified is connected with the liquid inlet of the verification container through the circulation pipeline; a heating cavity is formed in the verification container, the heating component is arranged in the heating cavity, and the power of the heating component is the same as that of the constant power water cooler to be verified; the liquid inlet and the liquid outlet of the constant power water cooler to be verified are both provided with temperature sensors.

[0006] According to the constant power water cooling mechanism cooling power verification system provided by the utility model, the ratio between the volume of the heating cavity and the volume of the heating component ranges from 3:1 to 2:1.

[0007] According to the constant power water cooler cooling power verification system provided by the utility model, the heating component includes a heating device, and the power of the heating device is the same as the power of the constant power water cooler to be verified; or, the heating component includes multiple heating devices, and the sum of the powers of the multiple heating devices is the same as the power of the constant power water cooler to be verified.

[0008] According to the constant power water cooling mechanism cooling power verification system provided by the utility model, the verification container is provided with an opening for placing the heating component into the heating cavity.

[0009] According to the constant power water cooling mechanism refrigeration power verification system provided by the utility model, the opening is arranged at the top of the verification container.

[0010] According to the constant power water cooling mechanism cooling power verification system provided by the utility model, the heating device is a heating rod, and the heating rod includes a hand-held part and a heating part. The heating part is passed through the opening and is located in the heating cavity, and the hand-held part is located outside the heating cavity.

[0011] According to the constant power water cooling mechanism refrigeration power verification system provided by the utility model, a one-way valve is provided at the liquid outlet of the verification container.

[0012] According to the constant power water cooler refrigeration power verification system provided by the utility model, the circulation pipeline is snap-connected with the liquid inlet of the verification container, the liquid outlet of the verification container, the liquid inlet of the constant power water cooler to be verified, and the liquid outlet of the constant power water cooler to be verified.

[0013] According to the constant power water cooling mechanism refrigeration power verification system provided by the utility model, the verification container is made of a heat-insulating material; or, the inner wall and / or the outer wall of the verification container is provided with a heat-insulating layer.

[0014] According to the constant power water cooling mechanism refrigeration power verification system provided by the utility model, the circulation pipeline is made of a heat-insulating material; or, a heat-insulating layer is provided on the circulation pipeline.

[0015] The constant power water cooler refrigeration power verification system provided by the utility model, during the test, first sets the set temperature (such as 25°C) to start the constant power water cooler to be verified, allows the fluid exchanger to fill the circulation pipeline, and controls the flow of the fluid exchanger in the circulation pipeline to be equal to the volume of the heating cavity through the constant power water cooler to be verified, and then sets the constant power water cooler to be verified to enter the constant power cooling mode, and finally starts the heating component and the constant power water cooler to be verified at the same time. Since the heating power of the heating component is the same as the power of the constant power water cooler to be verified, the difference between the fluid exchanger temperature collected by the inlet temperature sensor of the constant power water cooler to be verified and the fluid exchanger temperature collected by the outlet temperature sensor can be used to verify whether the power of the constant power water cooler is qualified. The constant power water cooler refrigeration power verification system provided by the utility model solves the defect that the existing constant power water cooler refrigeration power verification system is not suitable for special working environment requirements.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 This is one of the schematic diagrams of the refrigeration power verification system of the constant power water cooling mechanism provided by the utility model.

[0019] Figure 2 This is the second schematic diagram of the refrigeration power verification system of the constant power water cooling mechanism provided by the utility model.

[0020] Reference numerals:

[0021] 10. Verification container; 20. Constant power water chiller to be verified; 30. Heating component; 40. Circulation pipeline; 50. Temperature sensor; 60. One-way valve. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are 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.

[0023] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0025] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the 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, the first feature being "above", "above" and "above" the 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. The first feature being "below", "below" and "below" the 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.

[0026] 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 embodiment. 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, without contradiction.

[0027] Combine the following Figure 1 and Figure 2 The utility model describes a constant power water cooling mechanism cooling power verification system.

[0028] See also Figure 1 and Figure 2 As shown, the constant power water chiller refrigeration power verification system provided by the embodiment of the utility model includes: a verification container 10, a constant power water chiller 20 to be verified, a heating component 30 and a circulation pipeline 40.

[0029] Among them, the liquid outlet of the verification container 10 is connected to the liquid inlet of the constant power water cooler 20 to be verified through the circulation pipeline 40, and the liquid outlet of the constant power water cooler 20 to be verified is connected to the liquid inlet of the verification container 10 through the circulation pipeline 40; a heating cavity is formed in the verification container 10, and the heating component 30 is arranged in the heating cavity, and the power of the heating component 30 is the same as that of the constant power water cooler 20 to be verified; the liquid inlet and liquid outlet of the constant power water cooler 20 to be verified are both provided with temperature sensors 50.

[0030] The constant power water cooler refrigeration power verification system provided by the utility model, during the test, firstly sets the set temperature (such as 25°C) to start the constant power water cooler 20 to be verified, allows the fluid exchanger to fill the circulation pipeline 40, and controls the flow rate of the fluid exchanger in the circulation pipeline 40 to be equal to the volume of the heating cavity through the constant power water cooler 20 to be verified, and then sets the constant power water cooler 20 to be verified to enter the constant power cooling mode, and finally starts the heating component 30 and the constant power water cooler 20 to be verified at the same time. Since the heating power of the heating component 30 is the same as the power of the constant power water cooler 20 to be verified, the difference between the fluid exchanger temperature collected by the liquid inlet temperature sensor 50 of the constant power water cooler 20 to be verified and the fluid exchanger temperature collected by the liquid outlet temperature sensor 50 can be used to verify whether the power of the constant power water cooler is qualified. The constant power water cooler refrigeration power verification system provided by the utility model solves the defect that the existing constant power water cooler refrigeration power verification system is not suitable for special working environment requirements.

[0031] For example, when the volume of the heating cavity is 5 L, the flow rate of the constant power water chiller 20 to be verified should be set to 5 L / min to ensure that there is no retained liquid in the heating cavity.

[0032] According to some embodiments of the present invention, the ratio between the volume of the heating cavity and the volume of the heating component 30 is in the range of 3:1 to 2:1. By controlling the ratio between the volume of the heating cavity and the volume of the heating component 30 to be in the range of 3:1 to 2:1, the error caused by uneven heating during the verification process can be reduced, thereby improving the accuracy of the power verification of the constant power water chiller 20 to be verified.

[0033] It should be noted that the above-mentioned “volume of the heating component 30 ” specifically refers to the volume of the portion of the heating component 30 located in the heating cavity.

[0034] See also Figure 1As shown, according to some embodiments of the utility model, the heating assembly 30 may include a heating device, and the power of the heating device is the same as the power of the constant power water cooler 20 to be verified. By setting a single heating device and configuring the power of the heating device to be the same as the power of the constant power water cooler 20 to be verified, the system composition is simple. When verifying the constant power water cooler 20 to be verified with different power specifications, the heating device of the corresponding power specification can be replaced to match it, which is easy to operate and has strong flexibility.

[0035] According to some embodiments of the utility model, the heating assembly 30 may further include a plurality of heating devices, and the sum of the powers of the plurality of heating devices is the same as the power of the constant power water cooler 20 to be verified. By providing a plurality of heating devices, and configuring the sum of the powers of the plurality of heating devices to be the same as the power of the constant power water cooler 20 to be verified, when the power of a single heating device cannot adapt to the power of the constant power water cooler 20 to be verified, the powers of the plurality of heating devices may be superimposed on each other to match the power of the constant power water cooler 20 to be verified.

[0036] It should be noted that the powers of the multiple heating devices may be the same, or may be at least partially different.

[0037] See also Figure 1 As shown, according to some embodiments of the present invention, an opening for placing the heating component 30 into the heating cavity is provided on the verification container 10. By providing the opening on the verification container 10, the heating part of the heating component 30 can be conveniently placed into the heating cavity through the opening, and the structure is simple and the operation is easy.

[0038] Further, see Figure 1 As shown, according to some embodiments of the present invention, the opening is provided at the top of the verification container 10. By providing the opening at the top of the verification container 10, the exchange fluid in the heating cavity can be prevented from flowing out, and there is no need to provide a sealing mechanism at the opening position.

[0039] See also Figure 1 As shown, according to some embodiments of the utility model, the heating device is a heating rod, and the heating rod includes a hand-held part and a heating part, the heating part is passed through the opening and is located in the heating cavity, and the hand-held part is located outside the heating cavity. By placing the heating part of the heating rod into the heating cavity through the opening, and placing the hand-held part of the heating rod outside the heating cavity, the operation can be facilitated. When it is necessary to replace the heating rod with a different power specification, the current heating rod can be directly taken out of the heating cavity through the hand-held part, and the selected heating rod can be placed into the heating cavity through the opening. After the verification test is completed, the heating rod can be taken out of the heating cavity through the hand-held part.

[0040] See also Figure 1As shown, according to some embodiments of the present invention, a one-way valve 60 is provided at the liquid outlet of the verification container 10. By providing the one-way valve 60 at the liquid outlet of the verification container 10, the exchange fluid can flow in one direction in the circulation pipeline 40, ensuring the uniformity of the influence of the heating device (verification container 10+heating component 30) and the refrigeration device (constant power water chiller 20 to be verified) on the temperature of the exchange fluid in the circulation pipeline 40.

[0041] Specifically, according to some embodiments of the present invention, the one-way valve 60 may be a one-way solenoid valve.

[0042] According to some embodiments of the utility model, the circulation pipeline 40 is connected to the liquid inlet of the verification container 10, the liquid outlet of the verification container 10, the liquid inlet of the constant power water chiller 20 to be verified, and the liquid outlet of the constant power water chiller 20 to be verified. By configuring the circulation pipeline 40 and the liquid inlet of the verification container 10, the liquid outlet of the verification container 10, the liquid inlet of the constant power water chiller 20 to be verified, and the liquid outlet of the constant power water chiller 20 to be verified as a card connection, the convenience of system assembly can be improved.

[0043] According to some embodiments of the utility model, the snap-on connection can be in the form of a quick connector. Specifically, the quick connector is a sealed snap-on method, which includes a connector with a sealing ring (which can be set at the port of the circulation pipeline 40) and a matching insertion component (which can be set at the liquid inlet of the verification container 10, the liquid outlet of the verification container 10, the liquid inlet of the constant power water cooler 20 to be verified, and the liquid outlet of the constant power water cooler 20 to be verified). Through simple push-in and rotation operations, the quick connector can quickly achieve a sealed connection and quick separation.

[0044] According to some embodiments of the present invention, the verification container 10 and the circulation pipeline 40 are made of heat-insulating materials. By using heat-insulating materials to make the verification container 10 and the circulation pipeline 40, the heat loss of the verification container 10 and the circulation pipeline 40 can be reduced, thereby improving the verification test accuracy of the system.

[0045] As an example, the thermal insulation material may be polyurethane foam, silicate fiber felt, rock wool or aluminum silicate fiber felt.

[0046] According to some embodiments of the utility model, the inner wall and / or the outer wall of the verification container 10 is provided with an insulation layer, and the circulation pipeline 40 is provided with an insulation layer. By providing the insulation layer on the inner wall and / or the outer wall of the verification container 10 and providing the insulation layer on the circulation pipeline 40, the heat loss of the verification container 10 and the circulation pipeline 40 can be reduced, thereby improving the verification test accuracy of the system.

[0047] Specifically, the thermal insulation layer may also be made of the above-mentioned polyurethane foam, silicate fiber felt, rock wool or aluminum silicate fiber felt and other materials.

[0048] The following is a detailed description of the verification test principle of the constant power water cooling mechanism cooling power verification system provided by the utility model. Figure 1 and Figure 2 .

[0049] The verification container 10 (volume is 12L) (the volume of the verification container 10 is larger than the volume of the heating rod and the volume is close to the fluid exchange flow in the circulation loop) is connected to the constant power water chiller 20 to be verified through the circulation pipeline 40. A heating rod with a set power (equal to the power of the constant power water chiller 20 to be verified, which is 20kW) is provided in the heating cavity of the verification container 10.

[0050] The temperature sensors 50 are attached to the inner walls of the liquid inlet and the liquid outlet of the constant power water chiller 20 to be verified to ensure full contact between the temperature sensor 50 and the fluid exchanger, and then the one-way valve 60 is adjusted to ensure unidirectional movement of the fluid exchanger in the pipeline.

[0051] Before the verification test begins, first set the water temperature to 25°C to start the constant power water chiller 20 to be verified, set the flow rate to 12L / min, allow the exchange fluid to fill the circulation pipeline 40, and then set the constant power water chiller 20 to be verified to enter the constant power (20kW) cooling mode, and finally start the heating rod and the constant power water chiller 20 to be verified at the same time, so that the heating rod heats at 20kW and the constant power water chiller 20 to be verified cools at 20kW, and the flow rate is still 12L / min.

[0052] The power of the constant power water chiller is verified by comparing the difference between the fluid temperature collected by the fluid inlet temperature sensor 50 of the constant power water chiller 20 to be verified and the fluid temperature at the fluid outlet. If the temperature difference between the measured fluid temperature at the fluid inlet and the temperature measured at the fluid outlet is less than or equal to 2°C, it is verified that the actual cooling power of the constant power water chiller 20 to be verified meets 20kW, otherwise it is proved that there is an error in the actual cooling power of the constant power water chiller 20 to be verified. Specifically, the actual cooling power of the water chiller can be verified by replacing heating rods of different powers.

[0053] It should be noted that in the circulation pipeline 40, the injection of the exchange fluid is completed in the filling tank of the constant power water chiller 20 to be verified, and the recovery of the exchange fluid is connected to the circulation pipeline 40 for discharge through the air pump device after the test.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A constant power water chiller cooling power verification system, characterized in that: include: Verify the container, the constant power water chiller to be verified, the heating components and the circulation pipeline; The liquid outlet of the verification container is connected to the liquid inlet of the constant power water cooler to be verified through the circulation pipeline, and the liquid outlet of the constant power water cooler to be verified is connected to the liquid inlet of the verification container through the circulation pipeline; A heating cavity is formed in the verification container, the heating component is arranged in the heating cavity, and the power of the heating component is the same as the power of the constant power water chiller to be verified; The liquid inlet and the liquid outlet of the constant power water cooler to be verified are both provided with temperature sensors.

2. The constant power water chiller cooling power verification system according to claim 1, characterized in that: The ratio between the volume of the heating cavity and the volume of the heating component ranges from 3:1 to 2:

1.

3. The constant power water chiller refrigeration power verification system according to claim 1, characterized in that: The heating assembly includes a heating device, the power of which is the same as the power of the constant power water cooler to be verified; Alternatively, the heating component includes a plurality of heating devices, and the sum of the powers of the plurality of heating devices is the same as the power of the constant power water chiller to be verified.

4. The constant power water chiller refrigeration power verification system according to claim 3, characterized in that: The verification container is provided with an opening for placing the heating component into the heating cavity.

5. The constant power water chiller refrigeration power verification system according to claim 4, characterized in that: The opening is arranged at the top of the verification container.

6. The constant power water chiller refrigeration power verification system according to claim 4, characterized in that: The heating device is a heating rod, which includes a hand-held portion and a heating portion. The heating portion is passed through the opening and is located in the heating cavity, and the hand-held portion is located outside the heating cavity.

7. The constant power water chiller refrigeration power verification system according to any one of claims 1 to 6, characterized in that: The liquid outlet of the verification container is provided with a one-way valve.

8. The constant power water chiller refrigeration power verification system according to any one of claims 1 to 6, characterized in that: The circulation pipeline is connected by snap-fitting with the liquid inlet of the verification container, the liquid outlet of the verification container, the liquid inlet of the constant power water cooler to be verified, and the liquid outlet of the constant power water cooler to be verified.

9. The constant power water chiller refrigeration power verification system according to any one of claims 1 to 6, characterized in that: The verification container is made of heat-insulating material; Alternatively, the inner wall and / or outer wall of the verification container is provided with a heat-insulating layer.

10. The constant power water chiller refrigeration power verification system according to any one of claims 1 to 6, characterized in that: The circulation pipeline is made of thermal insulation material; Alternatively, a heat-insulating layer is provided on the circulation pipeline.

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