A heating tube durability test bench

Abstract

This utility model provides a heating tube durability testing bench, comprising: a frame base with casters bolted around its bottom; a control cabinet bolted to one side of the top of the frame base; several test boxes arranged side-by-side on the side of the frame base near the control cabinet's operating end, with a riser bracket at the bottom of each test box; an isolation protection module located on the left side of each test box, with bolts connecting its left and right sides to the riser bracket; and a power cabinet bolted to the right side of each test box. After all heating tube mounting brackets are installed, the liquid supply pipe is connected to the injection port to inject a specified concentration of detergent and aqueous solution into the test box, ensuring the liquid level covers all heating tubes. The exhaust pipe is connected to a fan, and the water pump connected to the injection port is adjusted to periodically inject a specified amount of liquid into the box. The control cabinet is then started to begin testing, verifying the thermal performance stability of the heating tubes and preventing collateral damage due to failure.

Description

Technical Field

[0001] This utility model relates to the field of testing, and in particular to the field of heating equipment accessories, specifically a heating tube durability testing bench. Background Technology

[0002] There is a need to conduct a durability test on the water heating element in an electric water heater. The heating element needs to be placed in a container with a specified concentration of detergent and aqueous solution, and heated for a certain period of time with the rated voltage applied. Then, the power is turned off for a certain period of time. During the power-off period, the liquid in the container needs to be cooled down. This process is repeated for a total of 1000 hours. The durability test monitors changes in heating efficiency, temperature uniformity, and response speed. Material degradation can lead to slower heating, localized overheating, or unstable temperature, affecting the user experience. At the same time, the test also checks whether the heating element is malfunctioning (such as melting or leakage). Heating element failure can damage the thermostat, circuit board, or even the entire unit. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a heating tube durability test bench to solve the difficulties of the prior art.

[0004] To achieve the above and other related objectives, this utility model provides a heating tube durability testing bench, comprising:

[0005] The frame base 1 has casters 11 bolted around its bottom perimeter.

[0006] Control cabinet 2 is bolted to one side of the top of frame base 1;

[0007] The test box 3 is provided in several units, and the test boxes 3 are arranged side by side on the side of the frame base 1 near the operating end of the control cabinet 2. The bottom of the test box 3 is provided with a heightening bracket 12.

[0008] Isolation protection module 4 is located on the left side of the detection box 3. The bottom of the isolation protection module 4 is connected to the frame base 1 by bolts, and the left and right sides of the isolation protection module 4 are connected to the heightening bracket 12 by bolts.

[0009] The power cabinet 5 is bolted to the right side of the test box 3, and the bottom of the power cabinet 5 is bolted to the frame base 1.

[0010] According to the preferred embodiment, the testing box 3 includes:

[0011] The housing 31 has a hollow detection cavity 32 formed by four side walls. The top of the housing 31 has a vent 33. The left and right sides of the housing 31 near the isolation protection module 4 have two rows of detection holes 34 at equal intervals. The top of the housing 31 near the power cabinet 5 has a liquid injection hole 35. The bottom of the liquid injection hole 35, the vent 33 and the detection holes 34 are connected to the detection cavity 32.

[0012] An exhaust pipe 36 is installed in a vent 33 on one side, and the other side of the exhaust pipe 36 is connected to a fan or the factory's pneumatic system.

[0013] A power-on status box 37 is bolted between two rows of detection holes 34. Two rows of power-on indicator lights 38 are installed on one side of the power-on status box 37. Wiring holes 39 are equally spaced on the left and right sides of the power-on status box 37.

[0014] A heating tube mounting base 310 is T-shaped and is fitted into a detection hole 34. One side of the detection cavity 32 in the heating tube mounting base 310 abuts against the side wall of the detection cavity 32, and the other side of the outer wall of the heating tube mounting base 310 is provided with an external thread. A power connector 311 is provided in the center of the side of the heating tube mounting base 310 away from the detection cavity 32, and the heating tube 6 to be tested is connected to the side of the power connector 311 near the detection cavity 32.

[0015] The hand-tightening cover 312 is threadedly fitted onto the outer side of the top of the heating tube mounting base 310, and the bottom of the hand-tightening cover 312 abuts against the outer wall of the housing 31.

[0016] According to the preferred embodiment, a temperature sensor 313 is installed at the bottom of the detection box 3 on the side near the power cabinet 5.

[0017] According to the preferred embodiment, the isolation protection module 4 includes:

[0018] Track 41 is provided on the left and right sides of the box 31. The bottom end of the track 41 is connected to the frame base 1 by bolts, and the bottom side wall of the track 41 is connected to the heightening bracket 12 by bolts.

[0019] Sliding door 42 is mounted between adjacent tracks 41. Handles 43 are bolted to the left and right sides of the end of the sliding door 42 away from the detection box 3.

[0020] According to the preferred embodiment, the track 41 and the sliding door 42 do not contact the detection box 3.

[0021] This utility model employs a base, control cabinet, testing box, isolation protection module, and power cabinet. The top of the heating tube to be tested is clipped onto one side of the heating tube mounting base. After connecting the power connector to the heating tube, the threaded side of the heating tube mounting base extends from the testing chamber, with the bottom of the mounting base abutting against the inner wall of the testing chamber. The hand-tightening cap is then tightened to confine the heating tube mounting base within the wiring hole. The power supply cable passing through the wiring hole in the power-on box is connected to the power connector. After all heating tube mounting bases are installed, the liquid supply pipe is connected to the injection hole, and a specified concentration of detergent and aqueous solution is injected into the testing box. The liquid level must cover all heating tubes. The exhaust pipe is connected to a fan or the factory's pneumatic system. The water pump connected to the injection hole is adjusted to periodically inject a specified amount of liquid into the chamber. The control cabinet is started to begin testing. After 1000 hours, it is checked whether any heating tubes fail to illuminate their power indicator lights when powered on, or whether the liquid in the testing chamber can be heated to a specific temperature within a specific time using a temperature sensor. The following beneficial effects are achieved:

[0022] 1. Verify the thermal performance stability of the heating element;

[0023] 2. Prevent collateral damage caused by failure.

[0024] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, so as to facilitate an understanding of the features and advantages of the present invention. Attached Figure Description

[0025] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0026] Figure 2 This is a schematic diagram of the assembly of the heating element in this utility model;

[0027] Figure 3 The diagram shown is a three-dimensional structural schematic of one side of the testing box in this utility model;

[0028] Figure 4 This is a three-dimensional structural diagram of the other side of the testing box in this utility model;

[0029] Figure 5 The diagram shown is an enlarged three-dimensional structural diagram of the heating tube mounting base in this utility model.

[0030] Label Explanation

[0031] 1. Frame base; 11. Casters; 12. Height increaser bracket;

[0032] 2. Control cabinet;

[0033] 3. Testing box; 31. Box body; 32. Testing chamber; 33. Air vent; 34. Testing hole; 35. Liquid injection hole; 36. Exhaust pipe; 37. Power-on status box; 38. Power-on indicator light; 39. Wiring hole; 310. Heating element mounting base; 311. Power connector; 312. Tight-lock cap; 313. Temperature sensor;

[0034] 4. Isolation and protection module; 41. Track; 42. Sliding door; 43. Handle;

[0035] 5. Power cabinet;

[0036] 6. Heating element. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages 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. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0038] Compared to the embodiments shown in the accompanying drawings, feasible embodiments within the scope of protection of this utility model may have fewer components, have other components not shown in the drawings, different components, components arranged differently, or components with different connections, etc. Furthermore, two or more components shown in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0039] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, “an” or “a” and similar terms do not necessarily indicate a quantity limitation. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships; these relative positional relationships may change accordingly when the absolute position of the described object changes.

[0040] This utility model proposes a heating tube durability test bench for use in testing processes. This utility model does not limit the type and specifications of the heating tube 6 to be tested, but the structure of the frame base 1, control cabinet 2, test box 3, isolation protection module 4 and power cabinet 5 is particularly suitable for heating tube durability testing.

[0041] Overall, the heating tube durability testing bench proposed in this utility model mainly includes: a frame base 1, a control cabinet 2, a testing box 3, an isolation protection module 4, and a power cabinet 5. (See also...) Figure 1 It shows the arrangement of the frame base 1, control cabinet 2, detection box 3, isolation protection module 4 and power cabinet 5.

[0042] The heating tube durability testing bench proposed in this utility model, when used as follows: Figure 2 As shown, the top of the heating tube 6 to be tested is clipped onto one side of the heating tube mounting base 310. After connecting the power connector 311 to the heating tube 6 to be tested, the threaded side of the heating tube mounting base 310 extends out from the detection hole 34, so that the bottom of the heating tube mounting base 310 abuts against the inner wall of the detection chamber 32. Tighten the hand-tightening cap 312 to limit the heating tube mounting base 310 within the wiring hole 39. Connect the power supply wire passing through the wiring hole 39 in the power-on box 37 to the power connector 311. After all the heating tube mounting bases 310 are installed, connect the liquid supply pipe to the injection... The liquid inlet 35 is filled with detergent and aqueous solution of a specified concentration into the detection chamber 3. The liquid level needs to cover all the heating tubes 6. The exhaust pipe 36 is connected to the fan or the factory's pneumatic system. The water pump connected to the liquid inlet 35 is adjusted to inject a specified amount of liquid into the chamber 31 at regular intervals. The control cabinet 2 is started to begin detection. After 1000 hours, it is checked whether the power indicator 38 of the heating tube does not light up when it is powered on, or whether the liquid in the detection chamber 32 can be heated to a specific temperature within a specific time by using the temperature sensor 313.

[0043] The frame base 1 is bolted around its bottom and has casters 11. A control cabinet 2 is bolted to one side of the top of the frame base 1. Several test boxes 3 are arranged side-by-side on the side of the frame base 1 near the operating end of the control cabinet 2. Each test box 3 has a riser bracket 12 at its bottom. Each test box 3 includes: a box body 31, an exhaust pipe 36, a power status box 37, a heating element mounting base 310, and a hand-tightening cap 312. The box body 31 has a hollow test cavity 32 formed by its four side walls, and a test opening is located at the top of the box body 31. The enclosure 31 has two rows of equally spaced detection holes 34 on both sides near the isolation protection module 4. A liquid injection hole 35 is located on the top of the enclosure 31 near the power cabinet 5. The bottoms of the liquid injection hole 35, air vents 33, and detection holes 34 communicate with the detection chamber 32. One side of the exhaust pipe 36 is fitted into the air vent 33, and the other side is connected to a fan or the factory's pneumatic system to rapidly cool the liquid in the enclosure 31. A power-on status box 37 is bolted to the two rows of detection holes 34. Between 4, a power-on status box 37 has two rows of power-on indicator lights 38 on one side. Wiring holes 39 are equally spaced on both sides of the power-on status box 37. The power-on status box 37 facilitates wiring and allows for observation of whether the heating element has a short circuit or open circuit. A short circuit will cause the heating element's resistance to become 0, and no current will flow through the entire circuit. The power-on indicator lights 38 will not light up. The heating element mounting base 310 is T-shaped and is fitted into the detection hole 34. The detection cavity 32 in the heating element mounting base 310 is located on one side. The heating tube mounting base 310 has an external thread on the other side of the side wall of the detection chamber 32, and a power connector 311 is located in the center of the side of the heating tube mounting base 310 away from the detection chamber 32. The heating tube 6 is connected to the side of the power connector 311 near the detection chamber 32. The hand-tightening cover 312 is threaded and fitted on the top outside of the heating tube mounting base 310. The bottom of the hand-tightening cover 312 abuts against the outer wall of the box 31. It should be noted that a temperature sensor 313 is installed at the bottom of the detection box 3 near the power cabinet 5 to detect the temperature inside the detection chamber 32.

[0044] The aforementioned isolation protection module 4 is located on the left side of the testing box 3. The bottom of the isolation protection module 4 is connected to the frame base 1 by bolts, and the left and right sides of the isolation protection module 4 are connected to the heightening bracket 12 by bolts. The isolation protection module 4 includes: a track 41 and a sliding door 42. The track 41 is located on the left and right sides of the box 31. The bottom end of the track 41 is connected to the frame base 1 by bolts, and the bottom side wall of the track 41 is connected to the heightening bracket 12 by bolts. The sliding door 42 is locked between adjacent tracks 41. The left and right sides of the end of the sliding door 42 away from the testing box 3 are provided with handles 43 connected by bolts. The track 41 and the sliding door 42 do not contact the testing box 3. If they come into direct contact, the high temperature will be directly conducted from the box 31 to the frame base 1, which will cause the frame base 1 to deform.

[0045] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A heating tube durability testing bench, characterized in that, include: A frame base (1) is provided with casters (11) around the bottom of the frame base (1) by bolts; Control cabinet (2), which is bolted to one side of the top of the frame base (1); The test box (3) is provided in several units, and the test boxes (3) are arranged side by side on the side of the frame base (1) near the operating end of the control cabinet (2). The bottom of the test box (3) is provided with a heightening bracket (12). Isolation protection module (4), the isolation protection module (4) is set on the left side of the detection box (3), the bottom of the isolation protection module (4) is connected to the frame base (1) by bolts, and the left and right sides of the isolation protection module (4) are connected to the heightening bracket (12) by bolts; The power cabinet (5) is bolted to the right side of the test box (3), and the bottom of the power cabinet (5) is bolted to the frame base (1).

2. The heating tube durability testing bench according to claim 1, characterized in that, The detection box (3) includes: The box (31) is a hollow detection cavity (32) formed by four side walls. The top of the box (31) is provided with a vent (33). The left and right sides of the box (31) near the isolation protection module (4) are provided with two rows of detection holes (34) at equal intervals. The top of the box (31) near the power cabinet (5) is provided with a liquid injection hole (35). The bottom of the liquid injection hole (35), the vent (33) and the detection hole (34) are connected to the detection cavity (32). An exhaust pipe (36) is installed in a vent (33) on one side and connected to a fan or the factory's pneumatic system on the other side. A power-on status box (37) is installed between two rows of detection holes (34) by bolt connection. Two rows of power-on indicator lights (38) are installed on one side of the power-on status box (37). Wiring holes (39) are opened at equal intervals on the left and right sides of the power-on status box (37). A heating tube mounting base (310) is T-shaped and is fitted into a detection hole (34). The side of the detection cavity (32) in the heating tube mounting base (310) abuts against the side wall of the detection cavity (32). The other side of the outer wall of the heating tube mounting base (310) is provided with an external thread. A power connector (311) is provided in the center of the side of the heating tube mounting base (310) away from the detection cavity (32). The heating tube (6) to be tested is connected to the side of the power connector (311) near the detection cavity (32). The hand-tightening cover (312) is threadedly fitted onto the outer side of the top of the heating tube mounting base (310), and the bottom of the hand-tightening cover (312) abuts against the outer wall of the box body (31).

3. The heating tube durability testing bench according to claim 2, characterized in that, A temperature sensor (313) is installed at the bottom of the detection box (3) near the power cabinet (5).

4. The heating tube durability testing bench according to claim 3, characterized in that, The isolation protection module (4) includes: Track (41), the track (41) is set on the left and right sides of the box (31), the bottom end of the track (41) is connected to the frame base (1) by bolts, and the bottom side wall of the track (41) is connected to the heightening bracket (12) by bolts; A sliding door (42) is mounted between adjacent tracks (41). Handles (43) are bolted to the left and right sides of the end of the sliding door (42) away from the detection box (3).

5. The heating tube durability testing bench according to claim 4, characterized in that, The track (41) and sliding door (42) do not contact the detection box (3).

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