A device for testing the efficiency of heat exchange.

Abstract

This utility model discloses a device for testing the efficiency of hot and cold heat exchange, relating to the field of heat exchange testing technology. The utility model includes a test host and a connecting assembly. Temperature detection components are inserted into the connecting holes of the test host and the mounting holes of the connecting assembly. During heat exchange testing, two temperature detection components are fixedly connected and installed at the input and output ends of the hot and cold heat exchanger, respectively. A V-shaped protective shell is fixedly installed on the inner wall of the connecting assembly, with the ends of the temperature detection components located inside the V-shaped protective shell. In this utility model, the two temperature detection components are respectively installed on the medium inlet and outlet pipes of the hot and cold heat exchanger under test via the connecting assembly. The ends of the temperature detection components extend into the interior of the connecting assembly, and their ends are surrounded by the V-shaped protective shell on the inner wall of the connecting assembly. The V-shaped protective shell allows the temperature detection components to sense the temperature of the fluid while simultaneously preventing them from being directly and rapidly eroded by the fluid.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange testing technology, specifically to a device for testing cold and hot heat exchange efficiency. Background Technology

[0002] In many industrial sectors such as HVAC, refrigeration, chemical, and energy, heat exchangers, as core heat exchange components, directly affect the energy consumption and performance of the entire system. Therefore, accurate and reliable heat exchange efficiency testing of heat exchangers is crucial.

[0003] The standard method in the industry for testing the efficiency of heat exchangers is to install temperature sensors on the inlet and outlet pipes of the refrigerant and heat transfer medium. By measuring the temperature change of the fluid before and after flowing through the heat exchanger, the heat exchange efficiency is calculated. However, the temperature sensor probe is directly subjected to the scouring, corrosion, and potential impact of particulate matter by the fluid over a long period of time, which can easily lead to mechanical damage to the sensitive element of the probe, corrosion of the sheath, or performance degradation, thereby shortening its service life and increasing maintenance costs.

[0004] Therefore, a device for testing the efficiency of cold and hot heat exchange is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a device for testing the efficiency of heat exchange in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0007] A heat exchange efficiency testing device includes a test host and a connecting assembly. Temperature detection components are inserted into the connection holes of the test host and the mounting holes of the connecting assembly. During heat exchange testing, two temperature detection components are fixedly connected to the input and output ends of the heat exchanger, respectively. A V-shaped protective shell is fixedly installed on the inner wall of the connecting assembly, and the ends of the temperature detection components are located inside the V-shaped protective shell.

[0008] Furthermore, the V-shaped protective shell has openings on both sides, and the V-shaped cross-section of the V-shaped protective shell is parallel to the direction of medium flow.

[0009] Furthermore, the test host is equipped with temperature acquisition, temperature comparison, and control calculation modules for testing and calculating heat exchange efficiency.

[0010] Furthermore, the connecting assembly includes a medium pipe, with connecting flanges fixedly connected to both ends of the medium pipe, mounting supports provided on the surface of the medium pipe, and the surface of the medium pipe covered with thermal insulation cotton.

[0011] Furthermore, the temperature detection component includes a plug that is inserted into a connection hole on the surface of the test host, and the plug is connected to a detector via a wire. The bottom surface of the detector is provided with a temperature detection probe, and the detector and the temperature detection probe are inserted into the interior of the mounting bracket.

[0012] Furthermore, an externally threaded heat insulation ring is provided on the surface of the temperature detection probe and on the bottom surface of the detector. The externally threaded heat insulation ring is threadedly inserted into the inner wall of the mounting support for fixing the detector and the temperature detection probe.

[0013] Furthermore, the end of the temperature detection probe is located inside the medium pipe, and its end is located inside the V-shaped protective shell.

[0014] The beneficial effects of this utility model are as follows:

[0015] Two temperature sensing components are installed on the medium inlet and outlet pipes of the heat exchanger under test via a connecting component. The end of the temperature sensing component extends into the interior of the connecting component, and its end is surrounded by a V-shaped protective shell on the inner wall of the connecting component. The V-shaped protective shell allows the temperature sensing component to sense the temperature of the fluid while avoiding direct and high-speed scouring by the fluid. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a side view of the present invention;

[0018] Figure 3 This is a partial sectional view of the present invention;

[0019] Figure 4 This is a utility model Figure 3 Enlarged view of part A;

[0020] Reference numerals: 1. Test host; 2. Connection assembly; 201. Medium pipeline; 202. Connection flange; 203. Mounting support; 204. Insulation cotton; 3. Temperature detection assembly; 301. Plug; 302. Wire; 303. Detector; 304. Temperature detection probe; 305. External threaded heat insulation ring; 4. V-shaped protective shell. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0022] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0024] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] A heat exchange efficiency testing device includes a test host 1 and a connection component 2. A temperature detection component 3 is inserted into the connection hole of the test host 1 and the mounting hole of the connection component 2 during heat exchange testing.

[0026] like Figures 1 to 4 As shown, the connecting component 2 includes a medium pipe 201, with connecting flanges 202 fixedly connected to both ends of the medium pipe 201, an mounting support 203 provided on the surface of the medium pipe 201, and insulation cotton 204 covering the surface of the medium pipe 201.

[0027] More specifically, the medium pipeline 201 is the channel for fluid, the connecting flanges 202 at both ends are used for bolting to the pipeline flanges of the system under test, the mounting support 203 provides a stable mounting base for the temperature detection component 3, and the insulation cotton 204 covering the surface of the medium pipeline 201 is used to reduce the heat exchange between the test section pipeline and the external environment, prevent heat loss or absorption, thereby ensuring the accuracy of the temperature measurement data and eliminating the interference of environmental factors on the test results.

[0028] like Figures 1 to 4 As shown, the temperature detection component 3 includes a plug 301 that is inserted into a connection hole on the surface of the test host 1, and the plug 301 is connected to a detector 303 via a wire 302. The bottom surface of the detector 303 is provided with a temperature detection probe 304. The detector 303 and the temperature detection probe 304 are inserted into the interior of the mounting bracket 203.

[0029] More specifically, the device is connected to the test host 1 via plug 301 and wire 302 to transmit electrical signals. The detector 303 contains a thermal element, and the temperature detection probe 304 is the temperature-sensing part of the detector 303. Its end eventually extends into the interior of the medium pipe 201. The detector 303 and the temperature detection probe 304 are inserted as a whole into the internal channel of the mounting bracket 203 to complete the physical installation and positioning.

[0030] A threaded heat insulation ring 305 is provided on the surface of the temperature detection probe 304 and on the bottom surface of the detector 303. The threaded heat insulation ring 305 is threadedly inserted into the inner wall of the mounting bracket 203 for fixing the detector 303 and the temperature detection probe 304. More specifically, after the detector 303 and the temperature detection probe 304 are inserted into the mounting bracket 203, the entire assembly is rotated to engage and tighten the threaded heat insulation ring 305 with the threaded inner wall of the mounting bracket 203.

[0031] In practical applications, the end of the temperature detection probe 304 is located inside the medium pipe 201, and its end is located inside the V-shaped protective shell 4.

[0032] More specifically, the temperature detection probe 304 passes through the mounting bracket 203 and is located in the internal flow channel of the medium pipeline 201. It is precisely positioned in the internal cavity of the V-shaped protective shell 4, which allows it to be in a protected environment with minimal fluid disturbance, accurately measuring the fluid temperature and effectively avoiding direct scouring, corrosion and particle impact.

[0033] Two temperature sensing components 3 are fixedly connected to the input and output ends of the heat exchanger, respectively, and a V-shaped protective shell 4 is fixedly installed on the inner wall of the connecting component 2, with the end of the temperature sensing component 3 located inside the V-shaped protective shell 4.

[0034] like Figure 3As shown, in practical applications, the V-shaped protective shell 4 has openings on both sides, and the V-shaped cross-section of the V-shaped protective shell 4 is parallel to the direction of medium flow.

[0035] More specifically, the V-shaped protective shell 4 can cover the detection part of the temperature detection component 3, preventing the detection part of the temperature detection component 3 from being directly washed onto the detection part of the temperature detection component 3, while still being able to sense the temperature of the medium.

[0036] In practical applications, the test host 1 is equipped with temperature acquisition, temperature comparison and control calculation modules to test and calculate heat exchange efficiency.

[0037] More specifically, the test host 1 integrates temperature acquisition, temperature comparison, and control calculation modules. The temperature acquisition module receives temperature signals from the temperature detection component 3 in real time. The temperature comparison module calculates the difference between the inlet and outlet temperatures of the same medium. The control calculation module, based on these temperature differences and preset medium flow rates, uses thermodynamic formulas, such as the ε-NTU method or the logarithmic mean temperature difference method, to automatically calculate the heat exchange efficiency of the heat exchanger, thereby achieving automation and intelligence in the testing process.

[0038] In summary: The two temperature detection components 3 are installed on the medium inlet and outlet pipes of the heat exchanger under test through the connecting component 2 respectively. The end of the temperature detection component 3 extends into the interior of the connecting component 2, and its end is surrounded by the V-shaped protective shell 4 on the inner wall of the connecting component 2. The V-shaped protective shell 4 enables the temperature detection component 3 to sense the temperature of the fluid, while avoiding the direct and high-speed scouring of the fluid.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A cold-heat heat exchange efficiency testing device, characterized in that, The test host (1) and the connection component (2) are included. Temperature detection components (3) are inserted into the connection hole of the test host (1) and the mounting hole of the connection component (2). During heat exchange testing, the two temperature detection components (3) are fixedly connected to the input and output ends of the heat exchanger, respectively. A V-shaped protective shell (4) is fixedly installed on the inner wall of the connection component (2), and the end of the temperature detection component (3) is located inside the V-shaped protective shell (4).

2. The heat transfer efficiency testing device according to claim 1, wherein, The V-shaped protective shell (4) has openings on both sides, and the V-shaped cross section of the V-shaped protective shell (4) is parallel to the direction of medium flow.

3. The heat transfer efficiency testing device according to claim 1, wherein, The test host (1) is equipped with a temperature acquisition, temperature comparison and control calculation module for testing and calculating heat exchange efficiency.

4. The heat transfer efficiency testing device of claim 1, wherein, The connecting assembly (2) includes a medium pipe (201), with connecting flanges (202) fixedly connected to both ends of the medium pipe (201), an installation support (203) provided on the surface of the medium pipe (201), and thermal insulation cotton (204) covering the surface of the medium pipe (201).

5. The heat transfer efficiency testing device according to claim 4, wherein, The temperature detection component (3) includes a plug (301) inserted into a connection hole on the surface of the test host (1), and the plug (301) is connected to a detector (303) via a wire (302). The bottom surface of the detector (303) is provided with a temperature detection probe (304). The detector (303) and the temperature detection probe (304) are connected to the interior of the mounting bracket (203).

6. The heat transfer efficiency testing device according to claim 5, wherein, The surface of the temperature detection probe (304) and the bottom surface of the detector (303) are provided with an external threaded heat insulation ring (305). The external threaded heat insulation ring (305) is threadedly inserted into the inner wall of the mounting bracket (203) for fixing the detector (303) and the temperature detection probe (304).

7. The heat exchange efficiency testing device according to claim 5, characterized in that, The end of the temperature detection probe (304) is located inside the medium pipe (201), and its end is located inside the V-shaped protective shell (4).

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