Heating detection equipment for electric heat tracing
By designing electric heating detection equipment, using the water bath detection method in the test box and heating chamber, and combining temperature changes and the specific heat capacity of water, the problem of detecting the heating conditions of electric heating per unit length and time is solved, and flexible and accurate detection results and insulation evaluation are achieved.
Patent Information
- Application Number
- CN202423058888.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-11
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-12-11
AI Technical Summary
It is difficult with existing technologies to quickly and accurately detect the heat generation of electric heat tracing per unit length and per unit time, especially the heat generation when it is disconnected in different usage scenarios.
An electric heating detection device was designed, which included a test box, a heating chamber, a water inlet pipe, a splint, an insulation layer, and a folding rod. The heating value of the electric heating was detected by injecting water or a conductive solution. The temperature change and the mass specific heat capacity of water were combined to achieve sealing and flexible adjustment of the detection length.
It realizes the accurate detection of the heat generated by electric heating per unit time, reduces the influence of the external environment, improves the flexibility and accuracy of detection, and can detect the waterproof type and insulation of electric heating.
Smart Images
Figure CN223426117U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the performance technical field of electric heat tracing, especially to a heating detection equipment of electric heat tracing. BACKGROUND
[0002] Nowadays, electric heat tracing has been more and more applied to various temperature maintaining occasions, especially pipe heat preservation and anti-freezing, due to its excellent characteristics.
[0003] Electric heat tracing is a flexible belt-like object similar to cable belt, which is generally composed of conductive thermoplastic and double-layer flame-retardant polyolefin materials, and an electric heating wire is arranged inside. The working principle of electric heat tracing is to generate heat by the electric heating wire inside, generate heat through current transmission, and automatically adjust output power and limit heating temperature.
[0004] Therefore, after the workshop produces electric heat tracing, the working performance of each batch of electric heat tracing products needs to be tested by sampling inspection to determine whether the working performance meets the above requirements, and then the yield of the whole batch of products is determined.
[0005] The most important thing for the working performance of electric heat tracing is whether it can ensure stable and controllable heating. Therefore, a heating detection equipment of electric heat tracing needs to be developed for this point. At present, the heating detection of electric heat tracing is generally performed on the whole electric heat tracing, but electric heat tracing often needs to be cut off for use according to different use scenarios. Therefore, the heating of electric heat tracing in unit length and unit time needs to be detected. SUMMARY
[0006] Therefore, the utility model provides a heating detection equipment of electric heat tracing to solve the technical problem of how to quickly and accurately detect the heating of electric heat tracing in unit length and unit time.
[0007] In order to achieve the above purpose, the utility model provides a heating detection equipment of electric heat tracing, which comprises a test box for detecting electric heat tracing, a heating bin for placing electric heat tracing to be detected is arranged in the test box, and the heating detection equipment further comprises:
[0008] A water inlet pipe fixedly connected with the test box, the water inlet pipe is communicated with the heating bin, and a thermometer is arranged in the heating bin;
[0009] An interface arranged at the bottom of the heating bin is used for electrically connecting with electric heat tracing to be detected, and a clamping plate is arranged at the interface and used for clamping electric heat tracing to be detected;
[0010] A heat insulation layer is arranged on the outside of the heating bin.
[0011] Furthermore, a heat-insulating cover plate fixedly connected to the test box is provided at the top opening of the heating chamber, and an electric heating inlet is provided on the heat-insulating cover plate.
[0012] Furthermore, a sealing slide is provided on one side of the electric heating inlet, and the sealing slide is slidably connected in the heat insulation cover.
[0013] Furthermore, a soft pad is provided at each relative position between the sealing slide plate and the electric heating inlet.
[0014] Furthermore, a plurality of folding rods are provided in the heating chamber for folding the electric heating to be tested to increase the detection length. The folding rods are fixedly connected to the inner end of the telescopic plate, the outer end of the telescopic plate passes through the test box and is exposed, and the telescopic plate is slidably connected to the test box.
[0015] Furthermore, a drain outlet is provided at the bottom of the heating chamber, and the drain outlet is connected to an external water tank.
[0016] Furthermore, the splint is provided with two pieces, and is respectively located on both sides of the interface. The bottom of the heating chamber is provided with a slide groove, and the splint is slidably connected to the bottom of the heating chamber through the slide groove.
[0017] Furthermore, a clamping spring is connected between the two clamping plates.
[0018] The beneficial effects of the present invention are as follows: 1. A test box is set up to detect electric heating. A heating chamber is set up in the test box, and water is filled in the heating chamber. The heating amount of the electric heating in the heating chamber is detected by detecting the heat change of the water. By detecting the water temperature and the change of the water temperature per unit time in advance, combined with the mass and specific heat capacity of the water, the heating amount of the electric heating per unit length per unit time can be accurately detected.
[0019] 2. The water in the heating chamber can be replaced with other conductive solutions, which can also be used to test the waterproofness and insulation of the electric heating system. A display screen and operation buttons are installed on the outside of the test chamber to observe the heating status of the electric heating system in real time, record temperature changes, and enable manual control when necessary.
[0020] 3. When testing electric heat tracing, the unit length is adjustable. A folding rod pushes the heat tracer to bend, allowing it to fold and place a longer heat tracer into the heating chamber. This allows for flexible selection of the appropriate heat trace testing length, and the test time can also be adjusted, providing greater flexibility. Furthermore, the heat tracer folded into the heating chamber is not stacked directly, but rather rests on a folding rod and telescopic plate. This prevents heat traces from being stuck together and interfering with each other, potentially leading to significant errors in the final test results.
[0021] 4. The entire heating chamber used for testing is located in the test box, and an insulation layer is provided on the outside of the heating chamber. An insulation cover is provided on the top of the heating chamber. When the sealing slide clamps the electric heating, the soft pad can also completely wrap the electric heating, sealing the electric heating inlet, making the heating chamber almost completely sealed. Compared with some current methods that directly use temperature sensors to detect the surface temperature of the electric heating, this solution uses a water bath to detect the heating of the electric heating, which is less affected by the external environment and the results are more accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0023] Figure 1 It is a schematic diagram of the overall structural principle of the utility model.
[0024] Figure 2 It is a front view of the device of the present utility model.
[0025] Figure 3 This is a schematic diagram of the internal structure of the heating chamber in the device of the utility model.
[0026] Figure 4 It is a schematic diagram of the internal structure of the device of the present utility model.
[0027] The following are marked in the figure:
[0028] 101. Test box, 102. Heating chamber, 103. Insulation cover, 104. Electric heating inlet, 105. Sealing slide, 106. Cushion, 107. Folding rod, 108. Telescopic plate, 109. Water inlet pipe, 110. Clamp, 111. Slide, 112. Clamping spring, 113. Interface, 114. Thermometer, 115. Drain. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.
[0030] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the usual meanings understood by people with ordinary skills in the field to which this utility model belongs. The "first", "second" and similar words used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.
[0031] The first aspect of the present invention is as follows Figure 1 、 Figure 2 and Figure 3 As shown, in order to accurately detect whether the working performance of the electric heating is up to standard, especially to detect whether stable and controllable heating can be guaranteed. A test box 101 is specially set up for detecting electric heating, and a heating chamber 102 for placing the electric heating to be tested is set in the test box 101. A water inlet pipe 109 is fixedly connected to the test box 101, and the water inlet pipe 109 is connected to the heating chamber 102, and is used to fill the heating chamber 102 with water (or inject other specific solutions). A thermometer 114 is also provided in the heating chamber 102 to detect changes in the temperature of the liquid in the heating chamber 102.
[0032] A test box 101 is provided to test the electric heat tracing. A heating chamber 102 is provided in the test box 101. Water is filled in the heating chamber 102. The heat generated by the electric heat tracing in the heating chamber 102 is detected by detecting the heat change of the water. By detecting the water temperature and the change of the water temperature per unit time in advance, combined with the mass and specific heat capacity of the water, the heat generated by the electric heat tracing per unit length per unit time can be accurately detected.
[0033] In addition, a port 113 is provided at the bottom of the heating chamber 102 for electrical connection to the electric heat trace to be tested. A clamping plate 110 is also provided at port 113 for clamping the electric heat trace to be tested. Two clamping plates 110 are provided, one on either side of port 113. A chute 111 is provided at the bottom of the heating chamber 102, and the clamping plates 110 are slidably connected to the bottom of the heating chamber 102 via the chute 111. A clamping spring 112 is also connected between the two clamping plates 110. These clamping plates 110 are suitable for clamping the lower portion of the electric heat trace to be tested.
[0034] The upper part of the electric heat tracing is clamped by the sealing sliding plate 105 in cooperation with the heat insulation cover plate 103. The heat insulation cover plate 103 is fixedly connected to the test box 101 at the top opening of the heat generating bin 102, and the heat insulation cover plate 103 is provided with an electric heat tracing inlet 104 for placing the electric heat tracing into the heat generating bin 102. The electric heat tracing inlet 104 is further provided with a sealing sliding plate 105 which is slidingly connected in the heat insulation cover plate 103.
[0035] Preferably, the sealing sliding plate 105 and the electric heat tracing inlet 104 are respectively provided with a soft pad 106.
[0036] When the sealing sliding plate 105 clamps the electric heat tracing, the soft pads 106 on both sides can completely wrap the electric heat tracing, not only clamping the upper part of the electric heat tracing to be detected to be fixed, but also sealing the electric heat tracing inlet 104, so that the heat generating bin 102 is almost in a completely sealed state.
[0037] In addition, the heat generating bin 102 is provided with a heat insulation layer on the outside, and the heat insulation cover plate 103 can also effectively cut off the heat dissipation. Therefore, the heat generating bin 102 is almost in a completely sealed and insulated state. Compared with the current temperature sensor for detecting the surface temperature of the electric heat tracing, the water bath detection method of the present application is less affected by the external environment, and the result is more accurate.
[0038] Preferably, the water inlet pipe 109 can also be used to inject other specific solutions into the heat generating bin 102, for example, it can be replaced by a conductive solution, which can also detect whether the waterproof type and insulation of the electric heat tracing are qualified. The display screen and operation button are arranged on the outside of the test box 101, so that the heating condition of the electric heat tracing can be observed in real time, and the temperature change can be recorded, and manual control can be performed when necessary.
[0039] The second aspect of the utility model, as shown in Figure 3 and Figure 4 A plurality of folding rods 107 are further arranged in the heat generating bin 102, which are used for folding the electric heat tracing to be detected and increasing the detection length. The folding rods 107 are fixedly connected to the inner end of the telescopic plate 108, the outer end of the telescopic plate 108 penetrates through the test box 101 and is exposed, and the telescopic plate 108 is slidingly connected to the test box 101. When in use, the telescopic plate 108 can be moved inward by hand, so that the folding rods 107 at the inner end of the telescopic plate 108 can press the electric heat tracing to be detected, and the electric heat tracing is finally folded by the mutual pressing of the telescopic plate 108 and the folding rods 107 on both sides.
[0040] Therefore, when testing the electric heat trace, the heat trace can be folded, allowing a longer heat trace to be placed inside the heating chamber 102. This allows for the freedom to select the appropriate heat trace testing length and adjust the testing time, providing greater flexibility. Furthermore, the heat trace folded inside the heating chamber 102 is not directly stacked, but rather rests on the folding rod 107 and telescopic plate 108. This prevents heat traces from being stuck together and interfering with each other, potentially leading to significant errors in the final test results.
[0041] In addition, the bottom of the heating chamber 102 is also provided with a drain 115, which is communicated with an external water tank (or other container for recovering the solution). After the final detection is completed, the solution can be discharged through the drain 115 and the electric heating can be taken out. Specific embodiment:
[0043] When retesting, first put the electric heating into the heating chamber 102 through the electric heating inlet 104. After the connection is completed, the lower part of the electric heating to be tested is clamped by the clamping plate 110, and then the electric heating is folded by the telescopic plate 108 and the folding rod 107. The appropriate electric heating detection length can be freely selected according to needs, and then the sealing slide 105 is slid to clamp the upper part of the electric heating, and finally water is injected through the water inlet pipe 109.
[0044] After filling heating chamber 102 with water, the initial temperature of the liquid in heating chamber 102 is measured using thermometer 114. The electric heat trace is then controlled to generate heat. The temperature change of the liquid in heating chamber 102 is continuously observed and recorded until a preset time is reached. Finally, the final temperature of the liquid in heating chamber 102 is measured. By combining the mass and specific heat capacity of the water, the amount of heat generated per unit length of the electric heat trace per unit time can be accurately measured.
[0045] In summary, the present invention sets up a test box 101 to test electric heat tracing. A heating chamber 102 is set in the test box 101. The heating chamber 102 is almost completely sealed and filled with water. The heating amount of the electric heat tracing in the heating chamber 102 is detected by detecting the heat change of the water. By detecting the water temperature and the change of the water temperature per unit time in advance, and combining the water mass and specific heat capacity, the heating amount per unit length of electric heat tracing per unit time can be accurately detected. Compared with some current methods that directly use temperature sensors to detect the surface temperature of electric heat tracing, this solution uses a water bath to detect the heating of electric heat tracing, which is less affected by the external environment and the results are more accurate.
[0046] In addition, the water in the heating chamber 102 can be replaced with other conductive solutions, which can also be used to test the water resistance and insulation of the electric heating system. A display screen and operating buttons are provided on the outside of the test box 101, allowing real-time observation of the heating status of the electric heating system, recording temperature changes, and enabling manual control when necessary. When testing the electric heating system, the unit length of the electric heating system can be adjusted. The folding rod 107 pushes the electric heating system to bend, allowing the electric heating system to fold and place a longer electric heating system into the heating chamber 102. Therefore, the appropriate electric heating system detection length can be freely selected according to needs, and the detection time can also be adjusted, making the detection more flexible. Furthermore, the electric heating system folded into the heating chamber 102 is not directly stacked, but rather rests on the folding rod 107 and telescopic plate 108. This prevents different locations of the electric heating system from sticking together and affecting each other, which could lead to large errors in the final detection results.
[0047] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention, including the claims, is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.
[0048] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.
Claims
1. A heating detection device for electric heating, comprising a test box (101) for detecting electric heating, wherein a heating chamber (102) for placing the electric heating to be detected is provided in the test box (101), characterized in that: The fever detection device also includes: A water inlet pipe (109) fixedly connected to the test box (101), the water inlet pipe (109) being in communication with the heating chamber (102), and a thermometer (114) being provided in the heating chamber (102); An interface (113) provided at the bottom of the heating chamber (102) is used for electrically connecting to the electric heat tracing to be detected, and a clamping plate (110) is also provided at the interface (113) for clamping the electric heat tracing to be detected; A heat insulation layer is provided on the outer side of the heating chamber (102).
2. The electric heating detection device according to claim 1, characterized in that: The top opening of the heating chamber (102) is further provided with a heat-insulating cover plate (103) fixedly connected to the test box (101), and the heat-insulating cover plate (103) is provided with an electric heating inlet (104).
3. The electric heating detection device according to claim 2, characterized in that: A sealing slide plate (105) is further provided on one side of the electric heating inlet (104), and the sealing slide plate (105) is slidably connected inside the heat insulation cover plate (103).
4. The electric heating detection device according to claim 3, characterized in that: A soft pad (106) is provided at each relative position between the sealing slide plate (105) and the electric heating inlet (104).
5. The electric heating detection device according to claim 1, characterized in that: A plurality of folding rods (107) are further provided in the heating chamber (102) for folding the electric heating to be tested to increase the detection length. The folding rods (107) are fixedly connected to the inner end of the telescopic plate (108). The outer end of the telescopic plate (108) passes through the test box (101) and is exposed, and the telescopic plate (108) is slidably connected to the test box (101).
6. The electric heating detection device according to claim 1, characterized in that: The bottom of the heating chamber (102) is also provided with a drain outlet (115), and the drain outlet (115) is communicated with an external water tank.
7. The electric heating detection device according to claim 1, characterized in that: The splint (110) is provided with two pieces, and is respectively located on both sides of the interface (113); a slide groove (111) is provided at the bottom of the heating chamber (102); and the splint (110) is slidably connected to the bottom of the heating chamber (102) through the slide groove (111).
8. The electric heating detection device according to claim 7, characterized in that: A clamping spring (112) is also connected between the two clamping plates (110).