CN214250116U - Constant temperature heating pipe - Google Patents

Abstract

The utility model relates to a constant temperature heating pipe, including heating pipe and external power cord, the heating pipe has heating member, the heating pipe is provided with the protective sheath outward, the inner wall of protective sheath is provided with control circuit board, and the entrance point of heating pipe is provided with miniature water conservancy alternating-current generator, external power cord and heating member all link to each other with control circuit board. After the faucet is started, water enters the heating pipe, under the impact of water flow, the kinetic energy of the water is converted into electric energy by the micro hydraulic alternating-current generator, the generated alternating-current electricity is transmitted to the control circuit board, the water flow can be judged according to the size of the current because the size of the current depends on the size of the water flow, the control circuit board supplies power to the heating element according to the water flow, the heating power is changed along with the change of the water flow, and therefore constant-temperature heating is achieved.

Description

Constant temperature heating pipe

Technical Field

The utility model belongs to the technical field of firing equipment and specifically relates to a constant temperature heating pipe.

Background

At present, the water tap in rooms such as a household kitchen and a bathroom is far away from a water heater, when hot water is needed, cold water in a conveying pipeline between the water heater and the water tap needs to be discharged, water resources are wasted, after the water tap is used up, the hot water in the conveying pipeline is cooled, the water tap needs to be discharged when the water tap is used next time, and heat energy is wasted. Therefore, the distance between the water faucet and the water heater is shortened, or the water faucet is directly connected with the water heater, so that water resources and heat energy can be saved.

At present, some heating type water faucets appear, but heating power can not be intelligently adjusted according to water flow, and constant-temperature heating can not be realized.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a constant temperature heating pipe is provided, but the direct mount avoids the waste of water resource between conduit and tap, and can realize the constant temperature heating according to the big or small intelligent adjustment heating power of discharge.

The utility model provides a technical scheme that its technical problem adopted is: constant temperature heating pipe, including heating pipe and external power cord, the heating pipe has the heating member, the heating pipe is provided with the protective sheath outward, the inner wall of protective sheath is provided with control circuit board, and the entrance point of heating pipe is provided with miniature water conservancy alternating-current generator, external power cord and heating member all link to each other with control circuit board.

Furthermore, a first rectifier, an amplifying circuit, an inverter and a second rectifier are arranged on the control circuit board, the power line is connected with the first rectifier, the miniature hydraulic alternating-current generator is connected with the second rectifier, the second rectifier is connected with the inverter, the inverter and the first rectifier are both connected with the amplifying circuit, and the amplifying circuit is connected with the heating element.

Further, the miniature hydraulic alternating-current generator is installed on the inner wall of the protective sleeve and connected with a propeller through a transmission shaft, and the rotation center of the propeller is overlapped with the center line of the heating pipe.

Further, the heating pipe includes the metal core, the metal core overcoat has insulating outer tube, the heating member is the excitation coil of winding setting at insulating outer tube outer wall, the inside of metal core is provided with the rivers passageway.

Further, the water flow channel is multiple.

Further, the water flow channel includes a central channel and a plurality of side channels surrounding the central channel.

Further, the side channel is spiral-shaped.

Further, the inner wall of the water flow channel is provided with a plurality of bosses.

Further, a heat insulation layer is arranged between the insulating outer tube and the metal core.

Further, the both ends of metal core are provided with sealed end plate, sealed end plate has central through-hole, the port of rivers passageway is located central through-hole, the both ends and the sealed end plate fixed connection of insulating outer tube, the heat preservation is the vacuum layer.

The utility model has the advantages that: 1. the utility model discloses a conventional screwed joint of heating pipe accessible installs between the conduit and the tap of positions such as kitchen, bathroom, opens tap and just can use hot water, has promoted the convenience of water consumption, need not put out cold water earlier simultaneously, has avoided the waste of water resource.

2. After the faucet is started, water enters the heating pipe, under the impact of water flow, the kinetic energy of the water is converted into electric energy by the micro hydraulic alternating-current generator, the generated alternating-current electricity is transmitted to the control circuit board, the water flow can be judged according to the size of the current because the size of the current depends on the size of the water flow, the control circuit board supplies power to the heating element according to the water flow, the heating power is changed along with the change of the water flow, and therefore constant-temperature heating is achieved.

Drawings

Fig. 1 is an overall schematic view of the present invention;

FIG. 2 is a circuit diagram of a control circuit board;

FIG. 3 is an overall schematic view of a heating tube;

FIG. 4 is a schematic cross-sectional view of a metal core;

FIG. 5 is a schematic front view of a metal core;

FIG. 6 is a schematic view of the inner wall of the water flow passage;

1-heating tube; 11-a metal core; 12-an insulating outer tube; 13-a field coil; 14-a water flow channel; 141 — a central channel; 142-side channel; 15-boss; 16-sealing the end plate; 17-a heat-insulating layer; 18-a protective sleeve; 117 — external power line; 4-control circuit board; 41-miniature hydro alternator; 411-a drive shaft; 422-propeller; 42-a first rectifier; 43-an amplifier circuit; 44-an inverter; 45-second rectifier.

Detailed Description

The following further description is made in conjunction with the accompanying drawings and examples.

As shown in fig. 1, the utility model discloses a constant temperature heating pipe, including heating pipe 1 and external power cord 117, heating pipe 1 has the heating member, heating pipe 1 is provided with protective sheath 18 outward, the inner wall of protective sheath 18 is provided with control circuit board 4, and the entrance point of heating pipe 1 is provided with miniature hydraulic alternator 41, external power cord 117 and heating member all link to each other with control circuit board 4.

The heating pipe 1 is used for heating cold water, and the heating function can be realized after the heating element is electrified. External power source line 117 links to each other with external power source, the utility model discloses a 220V's domestic alternating current is as the power, and external power source line 117 accessible plug links to each other with domestic socket, realizes the power supply. The protective sleeve 18 is made of plastic, and has the protection effects of water resistance, dust resistance, electric leakage prevention and the like. The micro-hydraulic alternating-current generator 41 can utilize hydraulic power to generate electricity, the generated current is led to the control circuit board 4, the larger the water flow led into the heating pipe 1 is, the larger the current generated by the micro-hydraulic alternating-current generator 41 is, therefore, the control circuit board 4 can judge the water flow led into the heating pipe 1 through the current generated by the micro-hydraulic alternating-current generator 41, and then the current led into the heating element is controlled according to the water flow, so that constant-temperature heating is realized.

As shown in fig. 2, the control circuit board 4 is provided with a first rectifier 42, an amplifying circuit 43, an inverter 44 and a second rectifier 45, the external power line 117 is connected to the first rectifier 42, the micro-hydro ac generator 41 is connected to the second rectifier 45, the second rectifier 45 is connected to the inverter 44, both the inverter 44 and the first rectifier 42 are connected to the amplifying circuit 43, and the amplifying circuit 43 is connected to the heating element.

Fig. 2 shows a specific circuit diagram of the first rectifier 42, the amplifying circuit 43, the inverter 44, and the second rectifier 45, where R1 to R8 are resistors, L1 to L7 are inductors, C1 to C11 are capacitors, D1 to D14 are diodes, the amplifying circuit 43 employs a common emitter amplifying circuit, and current amplification is achieved by using a current amplification effect of a triode. The working process is as follows: the 220V household ac power is converted into dc power by the first rectifier 42, the dc power provides a bias voltage for the amplifying circuit 43, and the dc power is amplified and converted into ac power by the amplifying circuit 43 and then supplied to the heating member. The small current generated by the micro-hydroelectric alternator 41 is converted into direct current through the second rectifier 45, and then is converted into alternating current with higher frequency through the inverter, so that the frequency is improved, and then the current is amplified through the amplifying circuit and then is led into the heating element.

When the water flow is increased, the current generated by the micro-hydraulic alternating-current generator 41 is increased, then the current after rectification, inversion and amplification is increased, and finally the current introduced into the heating element is increased, so that the heating power of the heating element is increased; when the water flow is reduced, the current generated by the micro-hydraulic alternating-current generator 41 is reduced, then the current after rectification, inversion and amplification is reduced, and finally the current introduced into the heating element is reduced, so that the heating power of the heating element is reduced, and therefore the heating power can be automatically adjusted according to the water flow, and constant-temperature heating is realized.

The micro-hydro-alternator 41 may be of the prior art, as in utility model patent application No. 200920001056.3, and preferably, the micro-hydro-alternator 41 is mounted on the inner wall of the protective sheath 18 and connected with the propeller 422 through the transmission shaft 411, the center of rotation of the propeller 422 coincides with the center line of the heating pipe 1. When cold water enters the heating pipe 1, the propeller 422 is impacted, the propeller 422 rotates, the rotation motion is transmitted to the micro-hydro-alternator 41 through the transmission shaft 411, and the micro-hydro-alternator 41 can convert mechanical energy into electric energy. The transmission shaft 411 is provided with a plurality of transmission shafts, and the transmission shafts can transmit transmission through bevel gears.

The heating pipe 1 can adopt equipment of current heating rod, heating wire etc. as the heating member, and is preferred, as shown in fig. 3, the utility model discloses a heating pipe 1 includes metal core 11, metal core 11 overcoat has insulating outer tube 12, and the heating member is for the winding setting is in the excitation coil 13 of insulating outer tube 12 outer wall, the inside of metal core 11 is provided with rivers passageway 14.

The metal core 11 is made of a magnetic conductive metal material, such as iron, and the exciting coil 13 generates an alternating magnetic field after being energized with alternating current, and the metal core 11 generates heat under the action of the magnetic field to heat water in the water flow channel 14. In order to prevent electric leakage, the exciting coil 13 is separated from the metal core 11 by the insulating outer tube 12, and the metal core 11 is prevented from directly contacting the exciting coil 13. The insulating outer tube 12 may be made of a plastic tube having high strength, such as a PVC tube.

The utility model has the advantages of simple integral structure, whole appearance can be cylindrical or rectangular bodily form, and the volume is less, can set up the joint at the both ends of metal core 11, through connecting with heating pipe integral mount between conduit and water tap, when needing to use hot water, open tap, switch-on external power supply line 117 simultaneously, excitation coil 13 circular telegram, with the water heating in the rivers passageway 14 then directly discharge through tap, need not discharge cold water earlier, can save the water resource. In addition, the metal core 11 is located inside the exciting coil 13, the magnetic field intensity inside the exciting coil 13 is concentrated, the heating efficiency can be guaranteed, and compared with the existing heating wire and the like, the heating efficiency is higher, and the energy consumption is lower.

The water flow passage 14 may be one, and water is discharged through one water flow passage 14, but the contact area of the water with the metal core 11 is small, the heating effect is not good enough, and it is difficult to heat the water to a high temperature, as shown in fig. 4, the number of the water flow passages 14 is plural. During heating, the water is dispersed into a plurality of strands and then simultaneously enters each water flow channel 14, so that the contact area between the water flow channels and the metal core 11 is increased, the heating efficiency is improved, and the water can be heated to a proper temperature more quickly.

The number of the water flow passages 14 may be two, 3, etc., and preferably, the water flow passages 14 include a central passage 141 and a plurality of side passages 142 surrounding the central passage 141. The side channels 142 are uniformly distributed in a circumferential shape with the central channel 141 as the center, so as to ensure the uniformity of heating.

The side channel 142 may be a straight through hole, and preferably, as shown in fig. 5, the side channel 142 is spiral, and the side channel 142 is arranged in a spiral shape, so that the contact area of water and the metal core 11 can be further increased, the flow path of water flow can be extended, that is, the heating time can be increased, the heating effect can be further improved, and instant heating can be realized. The metal core 11 can be formed by casting, a spiral hole core is arranged in the cavity, and the spiral hole core is removed after casting, so that a spiral hole can be obtained.

As shown in fig. 6, the inner wall of the water flow channel 14 is provided with a plurality of bosses 15, and the bosses 15 are similar to the gastrointestinal fold structure, so that the contact area between the water and the metal core 11 can be further increased, and the heating speed can be improved.

After using hot water once and closing tap, can collect full hot water in the rivers passageway, the heat of hot water distributes gradually, and the temperature reduces, and reheating when using next time has led to thermal waste, consequently is provided with heat preservation 17 between being provided with between insulating outer tube 12 and the metal core 11. The heat preservation layer 17 can play a role in heat preservation, slow down the heat dissipation of hot water in the metal core 11 and thermoplastically, reduce heat loss, make the hot water in the metal core 11 continuously keep warm, can be used to hot water immediately when using next time, realize opening promptly better, improve the convenience that the hot water used.

The heat preservation layer 17 can be various conventional heat preservation materials, preferably, the both ends of metal core 11 are provided with sealed end plate 16, sealed end plate 16 has central through-hole, the port of rivers passageway 14 is located central through-hole, the both ends and the sealed end plate 16 fixed connection of insulating outer tube 12, heat preservation layer 17 is the vacuum layer. The vacuum layer has good heat preservation effect, can effectively reduce heat loss, and does not influence the generation of a magnetic field.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. Constant temperature heating pipe, its characterized in that: including heating pipe (1) and external power supply line (117), heating pipe (1) has the heating member, heating pipe (1) is provided with protective sheath (18) outward, the inner wall of protective sheath (18) is provided with control circuit board (4), and the entrance point of heating pipe (1) is provided with miniature water conservancy alternating current generator (41), external power supply line (117) and heating member all link to each other with control circuit board (4).

2. The thermostatic heating tube of claim 1, wherein: the control circuit board (4) is provided with a first rectifier (42), an amplifying circuit (43), an inverter (44) and a second rectifier (45), an external power line (117) is connected with the first rectifier (42), the miniature hydraulic alternating-current generator (41) is connected with the second rectifier (45), the second rectifier (45) is connected with the inverter (44), the inverter (44) and the first rectifier (42) are both connected with the amplifying circuit (43), and the amplifying circuit (43) is connected with the heating element.

3. The thermostatic heating tube of claim 1 or 2, characterized in that: the miniature hydraulic alternating-current generator (41) is arranged on the inner wall of the protective sleeve (18) and is connected with a propeller (422) through a transmission shaft (411), and the rotation center of the propeller (422) is coincided with the central line of the heating pipe (1).

4. The thermostatic heating tube of claim 1, wherein: heating pipe (1) includes metal core (11), metal core (11) overcoat has insulating outer tube (12), the heating member sets up excitation coil (13) at insulating outer tube (12) outer wall for the winding, the inside of metal core (11) is provided with rivers passageway (14).

5. The thermostatic heating tube of claim 4, wherein: the water flow channel (14) is multiple.

6. The thermostatic heating tube of claim 5, wherein: the water flow passage (14) includes a central passage (141) and a plurality of side passages (142) surrounding the central passage (141).

7. The thermostatic heating tube of claim 6, wherein: the side channel (142) is helical.

8. A thermostatic heating tube according to claim 4, 5, 6 or 7, characterized in that: the inner wall of the water flow channel (14) is provided with a plurality of bosses (15).

9. The thermostatic heating tube of claim 4, wherein: an insulating layer (17) is arranged between the insulating outer tube (12) and the metal core (11).

10. The thermostatic heating tube of claim 9, wherein: the both ends of metal core (11) are provided with sealed end plate (16), sealed end plate (16) have central through-hole, the port of rivers passageway (14) is located central through-hole, the both ends and sealed end plate (16) fixed connection of insulating outer tube (12), heat preservation (17) are the vacuum layer.

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