A pipe antifreeze structure and a water heater and a motorhome using the pipe antifreeze structure
By installing heating wires in the water heater pipeline and using controllers and temperature sensors to achieve internal heating, the problems of low efficiency and energy waste of traditional pipeline anti-freeze structures are solved, improving anti-freeze efficiency and reducing power consumption.
Patent Information
- Application Number
- CN202420411970.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-04
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-03-04
AI Technical Summary
The anti-freeze structure of traditional water heater pipes is inefficient and requires additional circulation pumps, resulting in waste of energy.
Install heating wires in the pipe, and internal heating is achieved through controllers and temperature sensors, which directly act on the fluid in the pipe.
Improves heating and freezing efficiency, reduces power consumption, avoids the need for additional circulation pumps, and solves the problems of inefficiency and energy waste in traditional methods.
Smart Images
Figure CN222702846U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of daily necessities, in particular to a pipeline antifreeze structure and a water heater and a motor home using the pipeline antifreeze structure. Background Art
[0002] In the northern winter or in low-temperature environments with temperatures below 0°C, the hot water stored in the water heater is prone to freezing and expansion, bursting the water tank and water pipes, causing losses. This is especially true for gas water heaters in RVs. To avoid losses, users are usually required to manually drain the water, or use gas heating or external electric auxiliary heating to heat the water pipes for antifreeze. When using external electric auxiliary heating for antifreeze, the electric auxiliary heating body is fixed to the outside of the heat exchanger (water tank) water pipe, which has the problem of low heat exchange efficiency. Using gas for antifreeze, that is, using a water pump to circulate and heat the water inside the RV water heater, requires an additional circulation pump and consumes gas energy, resulting in waste. Summary of the invention
[0003] The utility model aims to provide a pipeline antifreeze structure, so as to at least solve the problem that the traditional water heater pipeline antifreeze structure has low efficiency or needs to add an additional circulation pump, thus wasting energy.
[0004] The utility model provides a pipeline antifreeze structure, comprising: a pipeline, an antifreeze pipe, a controller, a temperature sensor, and a heating wire;
[0005] The pipeline is used for passing fluid;
[0006] The antifreeze pipe comprises a main pipe, a first independent end and a second independent end, wherein the first independent end and the second independent end are respectively located at two ends of the main pipe; the main pipe is located on the pipeline, and the first independent end and the second independent end are located outside the pipeline;
[0007] The first independent end and the second independent end are respectively provided with a first blocking cover and a second blocking cover, wherein the first blocking cover and the second blocking cover are sealing covers;
[0008] The heating wire is built in the main pipe, and both ends of the heating wire have extension ends, and the extension ends on both sides are respectively fixed to the first plugging cover and the second plugging cover, and are located outside the plugging covers;
[0009] The temperature sensor has a temperature probe, which is installed in the pipeline. The controller is connected to the temperature sensor and the heating wire respectively.
[0010] Furthermore, the antifreeze pipe is a copper pipe.
[0011] Furthermore, the heating wires are distributed in a spiral shape.
[0012] Furthermore, the heating wire is installed on the inner wall of the antifreeze pipe.
[0013] Furthermore, the heating wire is a nickel-chromium alloy wire.
[0014] Furthermore, the heating wire is connected to a 24V power supply.
[0015] Furthermore, the temperature sensor is installed at the water inlet pipe.
[0016] Furthermore, the controller includes a boost module.
[0017] Another object of the utility model is to provide a gas water heater using the pipeline antifreeze structure, wherein the gas water heater comprises the pipeline antifreeze structure, and the gas water heater is provided with at least one pipeline antifreeze structure.
[0018] Another object of the utility model is to provide a motorhome using the gas water heater with pipeline antifreeze structure.
[0019] The utility model heats the pipeline from the inside by placing a heating wire inside the pipeline, and the heat directly acts on the fluid in the pipeline, thereby improving the heating and antifreeze efficiency and solving the problems of low efficiency of existing pipeline heating methods or the need to add an additional circulation pump and waste energy. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of the structure of the pipeline antifreeze structure of the embodiment of the utility model;
[0021] Figure 2 for Figure 1 A cross-sectional view of
[0022] Figure 3 A gas water heater for RVs that utilizes a pipe antifreeze structure.
[0023] 1. Copper tube; 11. Main tube; 12. First independent end; 13. Second independent end; 2. Heating wire; 3. Temperature sensor; 4. Water inlet pipe; 5. Power supply. DETAILED DESCRIPTION
[0024] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.
[0026] Example 1
[0027] The pipeline antifreeze structure of this embodiment is as follows: Figure 1-3 As shown, it includes: pipelines, antifreeze pipes, controllers, temperature sensors 3, and heating wires 2;
[0028] The pipeline is used for passing fluid;
[0029] The antifreeze pipe comprises a main pipe 11, a first independent end 12, and a second independent end 13, wherein the first independent end 12 and the second independent end 13 are respectively located at two ends of the main pipe 11; the main pipe 11 is located on the pipeline, and the first independent end 12 and the second independent end 13 are located outside the pipeline;
[0030] The first independent end 12 and the second independent end 13 are respectively installed with a first blocking cover and a second blocking cover, wherein the first blocking cover and the second blocking cover are sealing covers;
[0031] The heating wire 2 is built in the main pipe, and both ends of the heating wire 2 have extension ends, and the extension ends on both sides are respectively fixed to the first plugging cover and the second plugging cover, and are located outside the plugging covers;
[0032] The temperature sensor 3 has a temperature probe, and the temperature probe is installed in the pipeline. The controller is connected to the temperature sensor 3 and the heating wire 2 respectively.
[0033] Specifically, the pipeline is a fluid channel for storing or passing water; the pipeline includes a main pipe 11, or the main pipe 11 is a section of the pipeline, the first independent end 12, the main pipe 11, and the second independent end 13 are connected, preferably integrated; the first independent end 12 and the second independent end 13 extend out of the pipeline; the heating wire 2 is installed in the antifreeze pipe. There is water in the first independent end 12 and the second independent end 13, and the first independent end 12 and the second independent end 13 are parts of the sealing pipe and play a sealing role. The heating wire 2 enters the antifreeze pipe through the first independent end 12 and the second independent end 13 to heat the water.
[0034] Working principle: When the heating wire 2 is heated, it directly acts on the fluid in the pipeline, such as water, to prevent the fluid and water in the pipeline from freezing and expanding as the temperature outside the pipeline decreases, causing damage to the pipeline.
[0035] When in use, the start threshold can be set as needed. The temperature sensor 3 transmits the measured temperature to the controller. When the temperature reaches the start threshold, the controller controls the start of power supply, the heating wire 2 works, and the heating wire 2 directly heats the water in the water pipe. When the temperature sensor 3 measures that the water temperature in the water pipe reaches the shut-off threshold, the controller controls the stop of power supply and the heating wire 2 stops heating.
[0036] The embodiment of the utility model is different from the existing pipeline antifreeze technology: the heating wire 2 is installed inside the pipeline, directly in contact with water, and has high heat exchange efficiency, so that the antifreeze effect is better. Due to the built-in electric heating wire 2, the heat exchange efficiency is increased, and correspondingly, the power consumption is reduced accordingly, so that the power consumption is low. The embodiment of the utility model solves the problem that the existing pipeline heating method is inefficient or needs to add a circulation pump. It has a simple structure, low cost, and is easy to implement.
[0037] Optionally, the antifreeze pipe is a copper pipe 1.
[0038] The heating wire 2 can be in a straight line, or a curved line, such as a folded line or a wave line. In this embodiment, the heating wire 2 is preferably in a spiral shape. The copper tube 1 is a heating tube, and the parts of the tube except the antifreeze tube can be made of other materials, such as ordinary oxygen-free copper tube.
[0039] The heating wire 2 of the utility model embodiment is distributed in a spiral shape, which increases the heat exchange area in contact with the fluid and water and improves the antifreeze efficiency. At the same time, when the heating wire 2 is distributed in a spiral shape, the thermal expansion and contraction of the heating wire 2 material has little effect on the pipeline, and the overall structure and shape of the heating wire 2 also change little.
[0040] Optionally, the heating wire 2 is installed on the inner wall of the antifreeze pipe.
[0041] Specifically, the heating wire 2 is distributed in a spiral shape close to the inner wall of the antifreeze pipe, which increases the heat exchange area, has little obstruction to the flow of water, reduces the destructive effect of the water flow on the heating wire 2, and extends the service life of the heating wire 2.
[0042] The heating wire 2 of the embodiment of the utility model is built into the copper tube 1 and close to the inner wall, which can efficiently exchange heat. A plurality of such structures can be installed in the same water heater and used simultaneously.
[0043] Optionally, the heating wire 2 is a nickel-chromium alloy wire.
[0044] Specifically, nickel-chromium materials have high high-temperature strength, strong plasticity, are not easily deformed under high-temperature use, their structure is not easily changed, they have good plasticity, are easy to repair, have high emissivity, are non-magnetic, and have strong corrosion resistance.
[0045] The heating wire 2 of the embodiment of the utility model is made of nickel-chromium alloy wire, which is durable and prolongs the service life of the overall antifreeze pipeline.
[0046] Optionally, the heating wire 2 is connected to a 24V power supply 5 .
[0047] Wherein, the controller includes a boost module.
[0048] Specifically, in some occasions, such as when a gas water heater of a motorhome adopts the pipeline antifreeze structure of this embodiment, since the vehicle output voltage is generally 12V, the boost module of the controller can provide boost to 24V. The boost module is a prior art.
[0049] The controller of the embodiment of the utility model includes a boost module, so that the pipeline antifreeze structure can be applied to trucks, RVs, etc., and has a wide range of applications.
[0050] Optionally, the temperature sensor 3 is installed at the water inlet pipe 4.
[0051] Specifically, the water inlet pipe 4 is a part of the heat exchanger, and a common oxygen-free copper pipe may be selected.
[0052] The temperature sensor 3 of the embodiment of the utility model is installed at the water inlet pipe 4, which can more accurately determine the temperature in the pipe, making it convenient for the controller to accurately determine whether the antifreeze heating needs to be started.
[0053] Embodiment 2, a gas water heater using the pipeline antifreeze structure, based on embodiment 1, the antifreeze structure is installed on the water pipeline of the gas water heater, and at least one antifreeze structure can be installed as needed.
[0054] Embodiment 3, using a recreational vehicle with a gas water heater with a pipeline antifreeze structure, based on Embodiment 2, the gas water heater with a pipeline antifreeze structure of Embodiment 2 is installed on the recreational vehicle.
[0055] Specifically, Figure 3 As shown, the heating wire 2 is built into the copper tube 1 of the gas water heater, and the heating wire 2 is spiral.
[0056] The copper tube 1 is a fluid channel for storing or passing water, and the heating wire 2 is installed in the water tube; the temperature sensor 3 is installed near the water inlet pipe 4 of the water heater, and the copper tube 1 is located above the water inlet pipe 4.
[0057] When working, the heating wire 2 directly acts on the water in the water pipe when heating, so as to prevent the water in the water pipe from freezing and expanding as the temperature outside the water pipe decreases, thereby preventing the water pipe from being damaged.
[0058] When in use, the boost module boosts the vehicle output voltage of 12V to 24V.
[0059] According to the needs, the heating wire 2 can be set to start heating when the temperature is below 5°C, and stop heating when it is above 5°C; when the temperature sensor 3 detects the start threshold, it is transmitted to the controller, and the controller controls the start power supply 5, the heating wire 2 is heated, and the heating wire 2 directly heats the water in the water pipe. When the temperature sensor 3 detects that the water temperature in the water pipe reaches the shut-down threshold, the controller controls the shut-down of the power supply 5, and the heating wire 2 stops heating.
[0060] The embodiment of the utility model is different from the existing RV gas water heater pipe antifreeze technology. The electric heating wire 2 is installed inside the machine, directly in contact with water, with high heat exchange efficiency, so that the antifreeze effect is better. Since the built-in electric heating wire 2 is spirally shaped, the heat exchange area is increased, the heat exchange efficiency is increased, and correspondingly, the power consumption can be reduced accordingly, so that the power consumption is low.
[0061] In winter or low temperature environment, the RV water heater does not need the user to manually drain water; nor does it need to use a water pump to circulate and heat the water channel inside the RV water heater. The utility model has a simple structure, is easy to use and has low cost.
[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that after reading the specification of this application, the technicians can still modify or replace the specific implementation mode of the utility model with equivalents, but these modifications or changes do not deviate from the scope of protection of the pending claims of the utility model application.
Claims
1. A pipeline antifreeze structure, characterized in that: The pipeline antifreeze structure comprises: pipelines, antifreeze pipes, controllers, temperature sensors, and heating wires; The pipeline is used for passing fluid; The antifreeze pipe comprises a main pipe, a first independent end and a second independent end, wherein the first independent end and the second independent end are respectively located at two ends of the main pipe; the main pipe is located on the pipeline, and the first independent end and the second independent end are located outside the pipeline; The first independent end and the second independent end are respectively provided with a first blocking cover and a second blocking cover, wherein the first blocking cover and the second blocking cover are sealing covers; The heating wire is built into the water pipe, and both ends of the heating wire have extension ends, and the extension ends on both sides are respectively fixed to the first plugging cover and the second plugging cover, and are located outside the plugging cover; The temperature sensor has a temperature probe, which is installed in the pipeline. The controller is connected to the temperature sensor and the heating wire respectively.
2. A pipeline antifreeze structure according to claim 1, characterized in that: The antifreeze pipe is a copper pipe.
3. A pipeline antifreeze structure according to claim 1, characterized in that: The heating wires are distributed in a spiral shape.
4. A pipeline antifreeze structure according to claim 3, characterized in that: The heating wire is installed on the inner wall of the antifreeze pipe.
5. The pipeline antifreeze structure according to claim 1, characterized in that: The heating wire is a nickel-chromium alloy wire.
6. A pipeline antifreeze structure according to claim 1, characterized in that: The heating wire is connected to a 24V power supply.
7. A pipeline antifreeze structure according to claim 1, characterized in that: The temperature sensor is installed at the water inlet pipe.
8. The pipeline antifreeze structure according to claim 1, characterized in that: The controller includes a boost module.
9. A gas water heater using the pipeline antifreeze structure according to any one of claims 1 to 8, characterized in that: The gas water heater comprises a pipeline antifreeze structure, and the gas water heater is provided with at least one pipeline antifreeze structure.
10. A motorhome using the gas water heater with pipeline antifreeze structure as claimed in claim 9.