Heating system of small water heater
The utility model relates to a heater technical field, in particular to heating system of small-size water heater.
In recent years, electric water heaters have been increasingly used in the mainstream market along with improvement of electricity utilization environment, and improvement of living environment requires improvement of comfort level of life, so that when selecting a water heater, not only a water heater for shower, but also a water heater for kitchen and a toilet is required. Although the traditional water storage type water heater can realize the function of one-machine multi-path water supply, the pipeline is long, the heat energy loss is large, long-time cold water discharging time is needed during water discharging, electric energy and water resources are wasted, and therefore the instant water heater appears on the market.
The existing instant water heater mainly comprises a heating body and an electric heating pipe, wherein the heating body is used for sealing the electric heating pipe so as to heat water flowing through the heating body, and the main problems of the existing instant water heater are as follows: the function is single, lacks the control to heating process parameter, and the leaving water temperature is unstable, easily ignores cold and ignores hot.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a heating system of small-size water heater, it can monitor the temperature parameter and the flow parameter of heating process, has promoted the stability of leaving water temperature simultaneously, avoids the temperature to neglect the emergence of cold neglected hot situation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a heating system of small-size water heater, includes cavity, top cap and heating pipe, wherein:
the cavity is of a hollow structure, the top of the cavity is open, the bottom of the cavity is provided with a water inlet part and a water outlet part, a flow guide part is arranged inside the cavity, a flow guide channel is formed inside the flow guide part, the top end of the flow guide part is open and is positioned at the upper part in the cavity, the bottom end of the flow guide part is communicated with the water outlet part, a first mounting component and a second mounting component are arranged on the outer wall of the cavity, a flow meter is mounted on the first mounting component and is respectively communicated with the water inlet part and the inside of the cavity, and a temperature sensor is mounted on the second mounting component;
the top cover is covered on the top of the cavity, the heating pipe is sealed in the cavity, and a temperature controller is arranged on the top cover;
the heating pipe is fixedly connected with the top cover, an extraction electrode extends out of the heating pipe, and the extraction electrode is located on the upper surface of the top cover.
Preferably, a first fixing portion is formed at the top of the cavity, a first fixing hole for penetrating a bolt is formed in the first fixing portion, a positioning portion is formed below the first fixing hole, and an accommodating space for placing a nut is formed in the positioning portion; and a second fixing hole which is used for penetrating a bolt and is matched with the first fixing hole is formed on the edge of the top cover.
Preferably, a step part is formed between the first fixing part and the top edge of the cavity, and a sealing ring is arranged on the step part.
Preferably, the flow guide part is formed on the inner wall of the cavity, the cross section of the flow guide part is U-shaped, and the flow guide part and the inner wall of the cavity are encircled to form the flow guide flow channel.
Preferably, first installation component includes installation department, cold water inlet portion and cold water outlet portion, be formed with a mounting chamber in the installation department, the flowmeter is installed to the mounting chamber, cold water inlet portion respectively with mounting chamber and water inlet portion intercommunication, cold water outlet portion respectively with the inside intercommunication of mounting chamber and cavity, be formed with the connection piece on the cold water inlet portion, the connection piece is connected respectively installation department and water inlet portion.
Preferably, the second installation component is provided with an inserting hole, a threaded hole and a fixing piece, the inserting hole is provided with the temperature sensor, the fixing piece is fixed on the second installation component through the matching of a screw and the threaded hole, and one end of the fixing piece is provided with a limiting bayonet used for fixing the temperature sensor.
Preferably, the temperature sensor is provided with a limiting part, and the limiting part is abutted against the limiting bayonet.
After the technical scheme is adopted, compared with the background art, the utility model, have following advantage:
the utility model discloses can monitor the temperature parameter and the flow parameter of heating process, promote the stability of leaving water temperature simultaneously, avoid the temperature to neglect the emergence of cold condition suddenly.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of the chamber of the present invention;
fig. 3 is another angle structure diagram of the cavity of the present invention;
fig. 4 is a schematic structural view of the top cover and the heating pipe of the present invention.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Shown in cooperation figures 1-4, the utility model discloses a heating system of small-size water heater, including cavity 1, top cap 2 and heating pipe 3, wherein:
the cavity 1 is a hollow structure, the top of the cavity is open, and the bottom of the cavity is provided with a water inlet part 11 and a water outlet part 12. The cavity 1 is provided with a flow guiding part 13 inside, a flow guiding channel 131 is formed inside the flow guiding part 13, the top end of the flow guiding channel is open and is positioned at the upper part inside the cavity 1, and the bottom end of the flow guiding channel is communicated with the water outlet part 12. In this embodiment, the flow guiding portion 13 is formed on the inner wall of the cavity 1, and the cross section thereof is U-shaped, and forms a flow guiding channel 131 with the inner wall of the cavity 1.
Be equipped with first installation component 14 and second installation component 15 on the outer wall of cavity 1, wherein:
the first mounting assembly 14 comprises a mounting portion 141, a cold water inlet portion 142 and a cold water outlet portion 143, a mounting cavity 1411 is formed in the mounting portion 141, the flow meter 4 is mounted in the mounting cavity 1411, the cold water inlet portion 142 is communicated with the mounting cavity 1411 and the water inlet portion 11 respectively, the cold water outlet portion 143 is communicated with the mounting cavity 1411 and the interior of the cavity 1 respectively, a connecting piece 1421 is formed on the cold water inlet portion 142, and the connecting piece 1421 is connected with the mounting portion 141 and the water inlet portion 11 respectively.
The second mounting assembly 15 has an insertion hole 151, a threaded hole 152 and a fixing member 153, the temperature sensor 5 is arranged on the insertion hole 151, the fixing member 153 is fixed on the second mounting assembly 15 through the matching of a screw and the threaded hole 152, and one end of the fixing member 153 is provided with a limiting bayonet used for fixing the temperature sensor 5. The temperature sensor 5 has a stopper portion (not shown) thereon, and the stopper portion 51 abuts against the stopper bayonet.
A first fixing portion 16 is formed at the top of the cavity 1, a first fixing hole 161 for passing a bolt is formed on the first fixing portion 16, a positioning portion 162 is formed below the first fixing hole 161, and an accommodating space for placing a nut is formed on the positioning portion 162; a second fixing hole 21 for passing a bolt and corresponding to the first fixing hole 161 is formed on the edge of the top cover 2. The first fixing portion 16 and the top end edge of the cavity 1 form a step portion 17, and a sealing ring is arranged on the step portion 17.
The top cover 2 is arranged on the top of the cavity 1 in a covering mode, the heating pipe 3 is sealed in the cavity 1, and the temperature controller 6 is arranged on the top cover 2.
The heating pipe 3 is fixedly connected with the top cover 2, an extraction electrode extends out of the heating pipe, and the extraction electrode is positioned on the upper surface of the top cover 2.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.