Heat exchanger testing device

Abstract

The utility model discloses a heat exchanger testing device which comprises a testing box, the testing box comprises a box body, a heat exchanger body is detachably arranged in the box body, and a partition plate capable of extending and moving towards the direction of the heat exchanger body is installed on the inner wall of the box body. An air channel communicated with the heat exchanger body is defined between every two adjacent partition plates, and a door plate structure used for blocking is arranged at an opening in the installation direction of the box body. When heat exchanger bodies of different specifications and sizes need to be detected, only the size of the space formed between the partition plates needs to be adjusted, the formed space is made to be matched with the heat exchanger bodies, the partition plates and the heat exchanger bodies are combined during installation, installation of the heat exchanger bodies of different specifications and sizes is completed, and the installation efficiency is improved. And two adjacent partition plates form an airflow channel for hot air or cold air to pass through, so that corresponding hot air or cold air is provided for the heat exchanger body, and preparation is made for testing of the heat exchanger body.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchanger testing, in particular to a heat exchanger testing device. Background Art

[0002] In the field of heat exchanger testing, with the rapid development of industrial technology and the increasing demand for product diversification, higher requirements are put forward for the performance testing and verification of heat exchangers. Traditional heat exchanger testing equipment often has problems such as large floor area, poor flexibility, and high testing costs. Especially when facing heat exchangers of different shapes, sizes, and specifications, multiple sets of testing equipment often need to be configured or the testing equipment needs to be readjusted, which greatly limits the testing efficiency and cost-effectiveness. Therefore, we provide a heat exchanger testing device to solve the above problems. Content of the Utility Model

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a heat exchanger testing device.

[0004] The purpose of the utility model is realized by the following technical solutions:

[0005] A heat exchanger testing device includes a testing box. The testing box includes a box body, in which a heat exchanger body is detachably arranged. A partition that can extend and move towards the heat exchanger body is installed on the inner wall of the box body. An air path communicating with the heat exchanger body is defined between two adjacent partitions. A door panel structure for plugging is arranged at the opening in the installation direction of the box body.

[0006] Preferably, the door panel structure includes a fixing plate fixedly installed on the box body. The fixing plate is provided with an avoidance opening. A plurality of buckles are installed on the side of the fixing plate away from the box body, and the buckles are circumferentially distributed with respect to the avoidance opening. A sealing plate is arranged in the avoidance opening, and the sealing plate is fixed to the fixing plate through the buckles.

[0007] Preferably, it further includes a hot air generating and conveying assembly. The air outlet end of the hot air generating and conveying assembly is connected to the hot air inlet of the heat exchanger body. A hot air return conveying assembly is communicated with the hot air outlet of the heat exchanger body. Among them, the hot air return conveying assembly is communicated with the hot air generating and conveying assembly; a cold air generating and conveying assembly is communicated with the cold air inlet of the heat exchanger body. A cold air return conveying assembly is communicated with the cold air outlet of the heat exchanger body. Among them, the cold air generating and conveying assembly is communicated with the cold air return conveying assembly.

[0008] Preferably, temperature detection components for detecting the internal temperature are arranged in the hot air generating and conveying assembly, the hot air return conveying assembly, the cold air generating and conveying assembly, and the cold air return conveying assembly, and each temperature detection component is arranged close to the testing box.

[0009] Preferably, the hot air generating and conveying assembly includes a first air duct housing, in which a first heating element for heating and a first fan for driving air flow are respectively installed.

[0010] Preferably, the hot air reflux conveying assembly includes a second air duct housing, in which a second fan and a flow straightener are sequentially installed along the air flow conveying direction, and a first wind speed sensor for measuring the wind speed is also installed in the second air duct housing.

[0011] Preferably, the flow straightener includes a first grille and a second grille, the first grille is fixedly connected to the second grille, and a third grille is arranged between the first grille and the second grille.

[0012] Preferably, the cold air generating and conveying assembly includes a third air duct housing, in which a refrigerating element and a third fan are arranged, and a second heating element is also installed in the third air duct housing.

[0013] Preferably, the cold air reflux conveying assembly includes a fourth air duct housing, in which a fourth fan is fixedly installed, and a second wind speed sensor for measuring the wind speed is also installed in the fourth air duct housing.

[0014] Preferably, the temperature detection assembly includes a first installation shell, a second installation shell is communicated with the bottom of the first installation shell, a fifth fan is installed in the first installation shell, an air outlet is formed on the first installation shell, an air inlet is formed on the side surface of the second installation shell, the first installation shell, the second installation shell, the air outlet and the air inlet form an air flow channel, and a temperature sensor for temperature detection is arranged in the second installation shell.

[0015] The utility model has the following advantages:

[0016] 1. When the heat exchanger body of different specifications needs to be detected in the utility model, only the size of the space formed between the partition plates needs to be adjusted to make the formed space adapt to the heat exchanger body. During installation, the partition plates are combined with the heat exchanger body to complete the installation of the heat exchanger body of different models and sizes. And the air flow channels for hot air or cold air to pass through are formed between two adjacent partition plates, so as to provide corresponding hot air or cold air for the heat exchanger body and prepare for the test of the heat exchanger body.

[0017] 2. By arranging temperature detection components for temperature detection in the hot air generating and conveying assembly, the hot air reflux conveying assembly, the cold air generating and conveying assembly and the cold air reflux conveying assembly, the change amount of the temperature after the heat exchange between the hot air and the cold air is measured, so as to calculate and measure the heat exchange efficiency of the detected heat exchanger body. Description of the Drawings

[0018] Figure 1 This is a schematic structural diagram of the explosion state of the test box of the present utility model.

[0019] Figure 2 This is a schematic structural diagram of the overall structure of the present utility model.

[0020] Figure 3 This is a schematic structural diagram of the hot air generating and conveying assembly of the present utility model.

[0021] Figure 4 This is a schematic structural diagram of the hot air reflux conveying assembly of the present utility model.

[0022] Figure 5 This is a schematic structural diagram of the cold air generating and conveying assembly of the present utility model.

[0023] Figure 6 This is a schematic structural diagram of the cold air reflux conveying assembly of the present utility model.

[0024] Figure 7 This is a schematic structural diagram of the temperature detection assembly of the present utility model.

[0025] Figure 8 This is a schematic structural diagram of the explosion state of the flow equalizer of the present utility model.

[0026] In the figure, 100 is the test box; 110 is the box body; 120 is the partition board; 130 is the heat exchanger body; 140 is the door panel structure, 141 is the fixing plate, 142 is the avoidance opening, 143 is the buckle, 144 is the sealing plate; 200 is the hot air generating and conveying assembly, 210 is the first air duct housing, 220 is the first heating element, 230 is the first fan; 300 is the hot air reflux conveying assembly, 310 is the second air duct housing, 320 is the flow equalizer, 321 is the first grille, 322 is the second grille, 323 is the third grille, 330 is the second fan, 340 is the first air speed sensor; 400 is the cold air generating and conveying assembly, 410 is the third air duct housing, 420 is the refrigeration element, 430 is the third fan, 440 is the second heating element; 500 is the cold air reflux conveying assembly, 510 is the fourth air duct housing, 520 is the fourth fan, 530 is the second air speed sensor; 600 is the temperature detection assembly, 610 is the first installation shell, 620 is the second installation shell, 630 is the air outlet, 640 is the fifth fan, 650 is the air inlet. Detailed Embodiments

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. The components of the embodiments of the present utility model usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0028] In the description of the present utility model, it should also be noted that, unless otherwise clearly defined and limited, the terms "set", "installed", "connected", and "connected" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] As Figure 1 — Figure 8 shown in the embodiments.

[0030] A heat exchanger testing device includes a testing box 100. The testing box 100 includes a box body 110. A heat exchanger body 130 is detachably arranged in the box body 110. A partition 120 that can extend and move towards the heat exchanger body 130 is installed on the inner wall of the box body 110. An air path communicating with the heat exchanger body 130 is defined between two adjacent partitions 120. A door panel structure 140 for sealing is arranged at the opening in the installation direction of the box body 110.

[0031] Referring to Figure 1 shown, when it is necessary to measure and detect heat exchanger bodies 130 of different specifications and sizes, first open the door panel structure 140, and first adjust the partition 120 so that the space formed between each partition 120 adapts to the heat exchanger body 130. Sliding grooves (not shown in the figure) are arranged at the four corners of the heat exchanger body 130. During installation, only need to align the four corners of the heat exchanger body 130 with the four partitions 120, that is, push the sliding grooves of the heat exchanger body 130 into the four partitions 120 to realize the installation of the heat exchanger body 130. An air path channel communicating with the heat exchanger body 130 is formed between two adjacent partitions 120, and the heat exchanger body 130 exchanges heat between the cold air and hot air passing through its interior.

[0032] It should be noted that the heat exchanger body 130 here is a plate heat exchanger.

[0033] In this embodiment, there are a total of four partition plates 120 inside the box body 110. An air passage channel communicating with the partition plate 120 is formed between two adjacent partition plates 120. Specifically, two adjacent partition plates 120 respectively define a hot air inlet channel, a hot air outlet channel, a cold air inlet channel, and a cold air outlet channel communicating with the heat exchanger body 130. Correspondingly, connection ports connected to the hot air inlet channel, the hot air outlet channel, the cold air inlet channel, and the cold air outlet channel are further provided on the box body 110. For specific details, reference can be made to Figure 1 as shown.

[0034] In this implementation, the partition plate 120 can be connected by multiple plate bodies. One of the plate bodies is fixedly connected to the inner wall of the box body 110. Here, the plate body connected to the inner wall of the box body 110 can be set as the connecting plate, and the plate for adjusting the distance from the heat exchanger body 130 is the adjusting plate. The adjusting plate and the connecting plate can be connected by means of a waist-shaped groove and bolts. When detecting heat exchanger bodies 130 of different models and sizes, only the size of the space formed between the four adjusting plates needs to be changed so that the formed space is adapted to the heat exchanger body 130, thereby being able to adapt to heat exchanger bodies 130 of different models and sizes.

[0035] The door panel structure 140 includes a fixing plate 141 fixedly installed on the box body 110. The fixing plate 141 is provided with an avoidance opening 142. A plurality of buckles 143 are installed on the side surface of the fixing plate 141 away from the box body 110, and the buckles 143 are circumferentially distributed with respect to the avoidance opening 142. A sealing plate 144 is arranged in the avoidance opening 142, and the sealing plate 144 is fixed to the fixing plate 141 through the buckles 143.

[0036] Refer to Figure 1 As shown, after the heat exchanger body 130 is placed and installed inside the box body 110, the sealing plate 144 is placed in the avoidance opening 142, and then the sealing plate 144 is fixed by a plurality of buckles 143, so as to realize the blocking of the avoidance opening 142 by the sealing plate 144, and the inner side surface of the sealing plate 144 is closely attached to the heat exchanger body 130.

[0037] It should be noted here that the avoidance opening 142 is a prior art, and the specific structure of the avoidance opening 142 will not be elaborated in detail here.

[0038] It further includes a hot air generating and conveying component 200. The air outlet end of the hot air generating and conveying component 200 is connected to the hot air inlet of the heat exchanger body 130. A hot air reflux conveying component 300 is communicatively arranged at the hot air outlet of the heat exchanger body 130. Among them, the hot air reflux conveying component 300 is communicated with the hot air generating and conveying component 200; A cold air generating and conveying component 400 is communicatively arranged at the cold air inlet of the heat exchanger body 130. A cold air reflux conveying component 500 is communicatively arranged at the cold air outlet of the heat exchanger body 130. Among them, the cold air generating and conveying component 400 is communicated with the cold air reflux conveying component 500.

[0039] Refer to Figure 2 As shown, this application mainly conducts heat exchange between hot air and cold air through the heat exchanger body 130, that is, transfers the heat of the hot air to the cold air, and infers the heat conversion efficiency of the heat exchanger body 130 by detecting the temperature drop of the hot air and the temperature rise of the cold air.

[0040] Specifically, the hot air generating and conveying component 200 generates hot air and conveys the generated hot air to the heat exchanger body 130. The hot air after heat exchange enters the hot air reflux conveying component 300, and the hot air after heat exchange entering the hot air reflux conveying component 300 re-enters the hot air generating and conveying component 200 for reuse, thereby reducing the waste of resources; The cold air generated by the cold air generating and conveying component 400 enters the heat exchanger body 130, and the cold air after heat exchange passes through the heat exchanger body 130 and then enters the cold air reflux conveying component 500. The cold air entering the cold air reflux conveying component 500 will be re-conveyed to the cold air generating and conveying component 400 for reuse, reducing the waste of resources.

[0041] Continue to refer to Figure 2 As shown, this application adopts a cross arrangement of hot and cold channels in the layout, thereby greatly reducing the space utilization.

[0042] Temperature detection components 600 for detecting the internal temperature are arranged in the hot air generating and conveying component 200, the hot air reflux conveying component 300, the cold air generating and conveying component 400, and the cold air reflux conveying component 500, and each temperature detection component 600 is arranged close to the direction of the test chamber 100.

[0043] Refer to Figures 2 to 6 As shown, by arranging the temperature detection component 600 close to the direction of the test chamber 100, the temperature of the cold air and hot air before entering the test chamber 100 can be measured by the temperature detection component 600, and the temperature of the cold air and hot air after coming out of the test chamber 100 can be detected in the first time, making the detection more accurate.

[0044] The hot air generating and conveying assembly 200 includes a first air duct housing 210, in which a first heating element 220 for heating and a first fan 230 for driving air flow are respectively installed.

[0045] Refer to Figure 2 As shown, the air in the first air duct housing 210 is heated by the first heating element 220, and then the first fan 230 is started to convey the heated air to the hot air inlet of the heat exchanger body 130, and after heat exchange with the heat exchanger body 130, it enters the hot air reflux conveying assembly 300.

[0046] The hot air reflux conveying assembly 300 includes a second air duct housing 310, in which a second fan 330 and a flow equalizer 320 are sequentially installed along the air flow conveying direction. A first wind speed sensor 340 for measuring the wind speed is also installed in the second air duct housing 310.

[0047] Refer to Figure 4 As shown, the hot air after heat exchange from the heat exchanger body 130 is conveyed by the second fan 330, and during the conveying process, the flow rate of the wind is measured by the first wind speed sensor 340. Furthermore, in order to make the wind conveying more uniform, the wind is equalized by the flow equalizer 320, that is, the wind is evenly distributed in the second air duct housing 310; the flow equalizer 320 can be multiple and evenly distributed in the second air duct housing 310. In this embodiment, there are two flow equalizers 320, and the first wind speed sensor 340 is arranged between the two flow equalizers 320. The purpose of this design is to measure the speed of the evenly conveyed wind to make the wind speed measurement more accurate.

[0048] The flow equalizer 320 includes a first grille 321 and a second grille 322, the first grille 321 is fixedly connected to the second grille 322, and a third grille 323 is arranged between the first grille 321 and the second grille 322.

[0049] Refer to Figure 8 As shown, a plurality of flow equalizing holes are provided in the first grille 321, the second grille 322 and the third grille 323, and at the same position, each flow equalizing hole communicates with each other to form a flow equalizing channel; in this embodiment, the first grille 321 and the second grille 322 can be snap-connected. Specifically, the first grille 321 and the second grille 322 are snap-connected to fix the third grille 323.

[0050] The cold air generating and conveying assembly 400 includes a third air duct housing 410, in which a refrigerating element 420 and a third fan 430 are provided. A second heating element 440 is also installed in the third air duct housing 410.

[0051] Refer to Figure 5 As shown, the third fan 430 conveys air. When the air passes through the refrigerating component 420, it is cooled, thereby generating cold air. In this embodiment, the refrigerating component 420 is a cold water coil. The air passing through the refrigerating component 420 absorbs heat, realizing the cooling of the air, that is, generating cold wind.

[0052] Furthermore, to meet various needs, when it is necessary to heat the air, only need to start the second heating component 440 to heat the air in the third air duct housing 410 to generate hot air. At this time, the refrigerating component 420 needs to stop working. When the refrigerating component 420 is a cold water coil, it is not necessary to convey cooling water inside it, that is, the refrigerating function will not be generated.

[0053] The cold air return conveying assembly 500 includes a fourth air duct housing 510, a fourth fan 520 fixedly installed in the fourth air duct housing 510, and a second wind speed sensor 530 for measuring the wind speed installed in the fourth air duct housing 510.

[0054] Refer to Figure 6 As shown, the fourth fan 520 conveys the heat-exchanged cold air back to the cold air generation and conveying assembly 400 for reuse. Specifically, during this process, the wind speed can be detected through the second wind speed sensor 530. To ensure accurate wind speed measurement, a corresponding flow equalizing plate (not marked in the figure) can be set in the fourth air duct housing 510. The flow equalizing plate is a plate body with a plurality of holes for air to pass through.

[0055] The temperature detection assembly 600 includes a first installation shell 610. The bottom of the first installation shell 610 is connected and provided with a second installation shell 620. A fifth fan 640 is installed in the first installation shell 610. An air outlet 630 is opened on the first installation shell 610. An air inlet 650 is opened on the side of the second installation shell 620. The first installation shell 610, the second installation shell 620, the air outlet 630 and the air inlet 650 form an air flow channel. A temperature sensor for temperature detection is provided in the second installation shell 620.

[0056] Refer to Figure 7 As shown, the first installation shell 610 and the second installation shell 620 form an air flow channel. The fifth fan 640 conveys external gas through the air inlet 650 into the second installation shell 620 and the first installation shell 610, and finally discharges it through the air outlet 630. A temperature sensor is provided in the second installation shell 620. The temperature of the gas entering the second installation shell 620 is detected through the temperature sensor, thereby realizing the temperature test of the gas.

[0057] In this embodiment, a corresponding humidity sensor may also be provided in the second mounting case 620 to detect the humidity in the gas. Of course, other types of sensors may also be provided as needed, and the types of specific sensors are not limited here.

[0058] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A heat exchanger testing device, characterized in that, It includes a test chamber (100), the test chamber (100) includes a chamber body (110), a heat exchanger body (130) is detachably arranged in the chamber body (110), a partition (120) which can extend and move towards the direction of the heat exchanger body (130) is installed on the inner wall of the chamber body (110), an air path communicating with the heat exchanger body (130) is defined between two adjacent partitions (120), and a door plate structure (140) for plugging is arranged at the opening in the installation direction of the chamber body (110).

2. The heat exchanger testing device according to claim 1, wherein: The door plate structure (140) includes a fixing plate (141) fixedly installed with the chamber body (110), an avoidance opening (142) is formed in the fixing plate (141), a plurality of buckles (143) are installed on the side surface of the fixing plate (141) away from the chamber body (110), and the buckles (143) are circumferentially distributed with respect to the avoidance opening (142), a sealing plate (144) is arranged in the avoidance opening (142), and the sealing plate (144) is fixed to the fixing plate (141) through the buckles (143).

3. The heat exchanger testing device according to claim 1, characterized in that: It further includes a hot air generating and conveying assembly (200), the air outlet end of the hot air generating and conveying assembly (200) is connected to the hot air inlet of the heat exchanger body (130), a hot air reflux conveying assembly (300) is communicatedly arranged at the hot air outlet of the heat exchanger body (130), wherein, the hot air reflux conveying assembly (300) is communicated with the hot air generating and conveying assembly (200); a cold air generating and conveying assembly (400) is communicatedly arranged at the cold air inlet of the heat exchanger body (130), a cold air reflux conveying assembly (500) is communicatedly arranged at the cold air outlet of the heat exchanger body (130), wherein, the cold air generating and conveying assembly (400) is communicated with the cold air reflux conveying assembly (500).

4. The heat exchanger testing device according to claim 3, wherein: Temperature detection assemblies (600) for detecting the internal temperature are arranged in the hot air generating and conveying assembly (200), the hot air reflux conveying assembly (300), the cold air generating and conveying assembly (400) and the cold air reflux conveying assembly (500), and each temperature detection assembly (600) is arranged close to the test chamber (100).

5. A heat exchanger testing device according to claim 3 or 4, characterized in that: The hot air generating and conveying assembly (200) includes a first air duct housing (210), a first heating element (220) for heating and a first fan (230) for driving air flow are respectively installed in the first air duct housing (210).

6. A heat exchanger test device according to claim 3 or 4, characterized in that: The hot air reflux conveying assembly (300) includes a second air duct housing (310), a second fan (330) and a flow equalizer (320) are sequentially installed in the second air duct housing (310) along the air flow conveying direction, and a first wind speed sensor (340) for measuring the wind speed is also installed in the second air duct housing (310).

7. The heat exchanger testing device according to claim 6, wherein: The flow equalizer (320) includes a first grille (321) and a second grille (322). The first grille (321) is fixedly connected to the second grille (322), and a third grille (323) is disposed between the first grille (321) and the second grille (322).

8. A heat exchanger testing device according to claim 3 or 4, characterized in that: The cold air generating and conveying assembly (400) includes a third air duct housing (410). A refrigerating member (420) and a third fan (430) are disposed in the third air duct housing (410), and a second heating member (440) is further installed in the third air duct housing (410).

9. A heat exchanger testing device according to claim 3 or 4, characterized in that: The cold air reflux conveying assembly (500) includes a fourth air duct housing (510). A fourth fan (520) is fixedly installed in the fourth air duct housing (510), and a second wind speed sensor (530) for measuring the wind speed is further installed in the fourth air duct housing (510).

10. A heat exchanger testing device according to claim 4, characterized in that: The temperature detection assembly (600) includes a first mounting shell (610). A second mounting shell (620) is communicatively connected to the bottom of the first mounting shell (610). A fifth fan (640) is installed in the first mounting shell (610). An air outlet (630) is formed in the first mounting shell (610). An air inlet (650) is formed in the side surface of the second mounting shell (620). The first mounting shell (610), the second mounting shell (620), the air outlet (630) and the air inlet (650) form an air flow channel. A temperature sensor for temperature detection is disposed in the second mounting shell (620).

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