Temperature sensing color changing pipe and temperature control system

Abstract

The utility model discloses a temperature sensing color changing pipe and a temperature control system, the temperature sensing color changing pipe comprises a pipe, the periphery of the pipe is provided with an annular mounting groove, a color changing layer is arranged in the mounting groove, the side wall of the pipe is provided with a through hole, the through hole is arranged along the radial direction of the pipe, one end of the through hole is communicated with the mounting groove, and the other end of the through hole is communicated with the color changing layer. A heat transfer rod is arranged in the through hole, one end of the heat transfer rod extends into the color changing layer, the other end of the heat transfer rod penetrates out of the inner side face of the side wall of the pipe, and an observation layer is arranged on the periphery of the installation groove and made of transparent materials. The color can be changed according to the temperature of fluid flowing through the pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of pipelines, and more specifically, to a temperature-sensitive color-changing tube and a temperature control system. Background Art

[0002] When the hot water temperature is too high, the pipe surface cannot give a warning, especially when there are children at home. Children who like to play with water can easily get scalded when the hot water is turned on. Adults also need to test the water temperature when using hot water. Although it will not cause scalding, it is inevitable that hot water will scald people.

[0003] At the same time, common water heaters on the market include electric water heaters, gas water heaters, solar water heaters, air energy, etc. Among these water heaters, only some high-end smart water heaters can achieve constant temperature control. Ordinary electric water heaters and solar water heaters cannot adjust the hot water temperature. In rural areas, most ordinary families and rental houses generally still use solar water heaters and low-end electric water heaters, and it is inevitable that hot water will scald people. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a temperature-sensitive color-changing tube.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model discloses a temperature-sensitive color-changing tube, comprising a tube, an installation groove is provided on the outer circumference of the tube, the installation groove is annular, a color-changing layer is provided in the installation groove, a through hole is provided on the side wall of the tube, the through hole is arranged along the radial direction of the tube, one end of the through hole is connected with the installation groove, and the other end of the through hole is connected with the inner side surface of the side wall of the tube, a heat transfer rod is provided in the through hole, one end of the heat transfer rod extends into the color-changing layer, and the other end of the heat transfer rod passes through the inner side surface of the side wall of the tube, an observation layer is provided on the outer circumference of the installation groove, and the observation layer is made of transparent material.

[0007] Furthermore, one end of the heat transfer rod passing through the inner side of the side wall of the tube is connected to a heat conduction block.

[0008] Furthermore, the heat conducting block is an arc-shaped structure, and the side wall of the heat conducting block is -mm away from the inner side surface of the side wall of the tube.

[0009] Furthermore, one end of the heat transfer rod located in the color changing layer is connected to a heat transfer ring, and the heat transfer ring is located in the middle of the color changing layer.

[0010] Furthermore, a heat-insulating ring is provided in the through hole, the outer periphery of the heat-insulating ring is arranged in contact with the inner wall of the through hole, and the heat transfer rod passes through the heat-insulating ring.

[0011] Furthermore, a sealing groove is provided at one end of the inner side of the through hole close to the center of the pipe, and a sealing ring is provided on the outer periphery of the heat transfer rod to match the sealing groove.

[0012] Furthermore, the heat transfer ring, the heat transfer rod and the heat conduction block are all made of ceramic material.

[0013] A temperature control system includes a water heater, a cold water pipe, a water outlet pipe and a temperature-sensitive color-changing tube. Two temperature-sensitive color-changing tubes are provided, one end of which is connected to the water outlet of the water heater, and one end of the other temperature-sensitive color-changing tube is connected to the cold water pipe. The other ends of the two temperature-sensitive color-changing tubes are both connected to the water outlet pipe. The system also includes a color identifier and a regulating valve. The camera of the color identifier is aimed at the observation layer area of ​​the temperature-sensitive color-changing tube, and the regulating valve is installed on the temperature-sensitive color-changing tube.

[0014] The beneficial effects of the present invention are as follows: by improving the structure of the existing pipe, the temperature-sensitive color-changing function can be added without improving the existing production method to achieve the temperature-sensitive color-changing of the entire pipe; the influence of the pipe itself on the temperature is reduced, making the temperature sensing result more accurate; the temperature is controlled by the depth of the color, so that the user will not be scalded and can use the desired water temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a temperature-sensitive color-changing tube in this embodiment;

[0016] Figure 2 Schematic diagram of the structure of the temperature control system in this embodiment.

[0017] Figure numerals: 1. pipe; 2. mounting groove; 3. thermal insulation layer; 4. color-changing layer; 5. observation layer; 6. heat transfer ring; 7. heat transfer rod; 8. heat-conducting block; 9. through hole; 10. thermal insulation ring; 11. sealing groove; 12. sealing ring; 13. water heater; 14. cold water pipe; 15. water outlet pipe; 16. color identifier; 17. regulating valve; 18. temperature-sensitive color-changing tube. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] like Figure 1A temperature-sensitive color-changing tube includes a tube 1. A mounting groove 2 is provided on the outer circumference of the tube 1. The mounting groove 2 is provided along the outer circumference of the tube 1 and is arranged in a ring shape. A color-changing layer 4 is provided in the mounting groove 2. The color-changing layer 4 fills the entire mounting groove 2, and the color-changing layer 4 can be seen from all angles. A through hole 9 is provided on the side wall of the tube 1. The through hole 9 is arranged along the radial direction of the tube 1. One end of the through hole 9 is connected to the mounting groove 2, and the other end of the through hole 9 is connected to the inner side surface of the side wall of the tube 1. A heat transfer rod 7 is provided in the through hole 9. One end of the heat transfer rod 7 extends into the color-changing layer 4. The end of the heat transfer rod 7 located in the color-changing layer 4 is connected to a heat transfer ring 6. The heat transfer ring 6 is located in the middle of the color-changing layer 4. The heat transfer ring 6 evenly transfers the heat transferred by the heat transfer rod 7 to the entire color-changing layer 4, so that the color-changing layer 4 feels the same temperature, and thus changes to the same color everywhere. The other end of heat transfer rod 7 extends beyond the inner side of the sidewall of tube 1. One end of heat transfer rod 7 extending beyond the inner side of tube 1 is connected to heat transfer block 8. Heat transfer block 8 transmits the temperature of water flowing through tube 1 to color-changing layer 4, causing color-changing layer 4 to change color in response to the temperature.

[0020] An observation layer 5 is provided on the periphery of the installation groove 2. The observation layer 5 is made of a transparent material, and the color change of the color-changing layer 4 can be observed, thereby understanding the temperature change.

[0021] A heat-insulating layer 3 is provided in the installation groove 2 . The heat-insulating layer 3 is located between the color-changing layer 4 and the pipe 1 and is used to isolate the heat transfer between the two.

[0022] Color-changing layer 4 is a reversible thermochromic powder layer, using a thermochromic powder from Shenzhen Huancai Bianse Technology Co., Ltd. The color-changing layer displays different colors at temperatures above and below these base temperatures, with the base temperature at 5°C, 10°C, 16°C, 21°C, 31°C, 33°C, 38°C, 43°C, 45°C, 50°C, and 65°C being the base temperatures for color change. This means that the color changes from 5°C to 10°C, one color from 10°C to 16°C, another color from 16°C to 21°C, and so on.

[0023] The heat conducting block 8 is an arc-shaped structure, and the side wall of the heat conducting block 8 is 3-5 mm away from the inner side surface of the side wall of the tube 1. The heat conducting block 8 does not contact the tube 1, so that heat is not transferred to the tube 1 due to contact, thereby ensuring the accuracy of the detected temperature.

[0024] An insulation ring 10 is provided in the through hole 9 , and the outer periphery of the insulation ring 10 is arranged in contact with the inner wall of the through hole 9 . The heat transfer rod 7 passes through the insulation ring 10 . The insulation ring 10 is used to isolate the heat on the heat transfer rod 7 from being transferred to the pipe 1 .

[0025] A sealing groove 11 is defined on one end of the through hole 9, near the center of the tube 1. A sealing ring 12 is positioned around the outer periphery of the heat transfer rod 7 to engage with the sealing groove 11. The outer periphery of the sealing ring 12 fits snugly into the sealing groove 11. The combination of the sealing ring 12 and the sealing groove 11 provides a seal, preventing water flowing through the tube 1 from entering the through hole 9.

[0026] The heat transfer ring 6, the heat transfer rod 7 and the heat transfer block 8 are all made of ceramic material and have a good heat conduction effect.

[0027] like Figure 2 As shown, a temperature control system includes a water heater 13, a cold water pipe 14, a water outlet pipe 15, and a temperature-sensitive color-changing tube 18. Two temperature-sensitive color-changing tubes 18 are provided. One end of one temperature-sensitive color-changing tube 18 is connected to the water outlet of the water heater 13, and one end of the other temperature-sensitive color-changing tube 18 is connected to the cold water pipe 14. A control valve is provided between the cold water pipe 14 and the temperature-sensitive color-changing tube. The other ends of the two temperature-sensitive color-changing tubes are connected to the water outlet pipe 15, and the two temperature-sensitive color-changing tubes and the water outlet pipe 15 are connected via a three-way joint. It also includes a color identifier 16 and a regulating valve 17. The camera of the color identifier 16 is aimed at the observation layer 5 area of ​​the temperature-sensitive color-changing tube. The regulating valve 17 is installed on the temperature-sensitive color-changing tube. The color identifier 16 is electrically connected to the regulating valve 17. According to the flow direction of water in the temperature-sensitive color-changing tube, the regulating valve 17 is located behind the color identifier 16, that is, behind the observation layer 5 in the temperature-sensitive color-changing tube.

[0028] Color detector 16 detects the color change of temperature-sensitive color-changing tube 18 and outputs different current signals to regulating valve 17. These signals control the opening of regulating valve 17, thereby controlling the flow rate. The hot and cold water flows through the two temperature-sensitive color-changing tubes 18 are proportionally controlled, and the mixed water temperature reaches the user's desired temperature, achieving constant temperature control.

[0029] The water outlet pipe 15 may also be connected to a temperature-sensitive color-changing tube 18 , through which it is possible to check whether the water temperature in the water outlet pipe 15 meets the required water temperature.

[0030] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A temperature-sensitive color-changing tube, characterized in that: The invention comprises a pipe (1), wherein a mounting groove (2) is provided on the outer periphery of the pipe (1), wherein the mounting groove (2) is annular, and a color-changing layer (4) is provided in the mounting groove (2), and a through hole (9) is provided on the side wall of the pipe (1), wherein the through hole (9) is provided along the radial direction of the pipe (1), and one end of the through hole (9) is connected to the mounting groove (2), and the other end of the through hole (9) is connected to the inner side surface of the side wall of the pipe (1), and a heat transfer rod (7) is provided in the through hole (9), wherein one end of the heat transfer rod (7) extends into the color-changing layer (4), and the other end of the heat transfer rod (7) passes through the inner side surface of the side wall of the pipe (1), and an observation layer (5) is provided on the outer periphery of the mounting groove (2), and the observation layer (5) is made of a transparent material.

2. The temperature-sensitive color-changing tube according to claim 1, characterized in that: One end of the heat transfer rod (7) passing through the inner side of the side wall of the pipe (1) is connected to a heat conduction block (8).

3. The temperature-sensitive color-changing tube according to claim 2, characterized in that: The heat conducting block (8) is an arc-shaped structure, and the side wall of the heat conducting block (8) is 3-5 mm away from the inner side surface of the side wall of the pipe (1).

4. The temperature-sensitive color-changing tube according to claim 2, characterized in that: One end of the heat transfer rod (7) located in the color changing layer (4) is connected to a heat transfer ring (6), and the heat transfer ring (6) is located in the middle of the color changing layer (4).

5. The temperature-sensitive color-changing tube according to claim 1, characterized in that: A heat insulating ring (10) is provided in the through hole (9), the outer periphery of the heat insulating ring (10) is arranged in contact with the inner wall of the through hole (9), and the heat transfer rod (7) is arranged to pass through the heat insulating ring (10).

6. The temperature-sensitive color-changing tube according to claim 5, characterized in that: A sealing groove (11) is provided at one end of the inner side of the through hole (9) close to the center of the pipe (1), and a sealing ring (12) is provided on the outer periphery of the heat transfer rod (7) to match the sealing groove (11).

7. The temperature-sensitive color-changing tube according to claim 4, characterized in that: The heat transfer ring (6), the heat transfer rod (7), and the heat conduction block (8) are all made of ceramic material.

8. A temperature control system comprising a water heater (13), a cold water pipe (14), a water outlet pipe (15), and the temperature-sensitive color-changing tube according to any one of claims 1 to 7, characterized in that: Two temperature-sensitive color-changing tubes are provided, one end of one temperature-sensitive color-changing tube is connected to the water outlet of the water heater (13), one end of the other temperature-sensitive color-changing tube is connected to the cold water pipe (14), and the other ends of the two temperature-sensitive color-changing tubes are connected to the water outlet pipe (15); It also includes a color identifier (16) and a regulating valve (17), wherein the camera of the color identifier (16) is aimed at the observation layer (5) area of ​​the temperature-sensitive color-changing tube, and the regulating valve (17) is installed on the temperature-sensitive color-changing tube.

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