CN217357558U

CN217357558U - Fluid circulation type electric heater

Info

Publication number: CN217357558U
Application number: CN202221069013.0U
Authority: CN
Inventors: 邵顾平
Original assignee: Suzhou Langgao Intelligent Technology Co ltd
Current assignee: Suzhou Langgao Intelligent Technology Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-09-02
Anticipated expiration: 2032-05-06

Abstract

The utility model relates to an explosion-proof electric heater technical field of fluid just discloses a circulating electric heater of fluid, including landing leg and controller, the top fixedly connected with waste heat utilization mechanism of landing leg, and the controller installs the front side at waste heat utilization mechanism, the shell is installed to the inner chamber of waste heat utilization mechanism, the medium is installed respectively at both ends about the outer wall of shell and is advanced pipe and medium exit tube, the guide plate is installed from a left side to right equidistance to the inner wall of shell, and the guide plate makes the shell inner chamber form the medium runner, the heater is installed to the inner chamber right-hand member of shell, and the outer wall that the heater runs through the guide plate, heat dissipation mechanism is installed to the right-hand member of shell. When in actual use, the waste heat that can release the shell is recycled, and energy resource consumption is saved can make electric heater terminal cooling moreover, prevents that heater terminal temperature from rising to melt the insulating crust of wire and arouse the short circuit, realizes the protection to the heater, and the security is high.

Description

Fluid circulation type electric heater

Technical Field

The utility model relates to a fluid explosion-proof electric heater technical field specifically is a fluid circulation formula electric heater.

Background

The explosion-proof electric fluid heater is one device to heat material to be heated by converting consumed electric energy into heat energy. The low-temperature fluid medium enters the input port of the electric heating container under the action of pressure in the work, the high-temperature heat energy generated in the work of the electric heating element is taken away along a specific heat exchange flow channel in the electric heating container by applying a path designed by the fluid thermodynamic principle, so that the temperature of the heated medium is increased, and the high-temperature medium required by the process is obtained at the outlet of the electric heater;

when using, explosion-proof electric heater shell also has higher temperature, and the heat often can be through the shell release and extravagant, preheats and can not obtain recycling, and explosion-proof electric heater internal heating ware is the three-phase electricity moreover, and heater terminal temperature can be along with heater power increase and more hot, scalds the insulating skin of wire of being connected with it easily, in case the heater is directly burnt out to the short circuit appears, and the security is poor.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a fluid circulation formula electric heater possesses and preheats and utilizes the advantage, has solved the radiating problem of heater terminal.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a fluid circulation type electric heater comprises supporting legs and a controller, wherein a waste heat utilization mechanism is fixedly connected to the top ends of the supporting legs, the controller is installed on the front side of the waste heat utilization mechanism, a shell is installed in an inner cavity of the waste heat utilization mechanism, a medium inlet pipe and a medium outlet pipe are installed at the left end and the right end of the outer wall of the shell respectively, guide plates are installed on the inner wall of the shell from left to right at equal intervals, the guide plates enable the inner cavity of the shell to form a medium flow channel, a heater is installed at the right end of the inner cavity of the shell and penetrates through the outer wall of the guide plates, and a heat dissipation mechanism is installed at the right end of the shell;

the waste heat utilization mechanism comprises an insulation box, the insulation box is fixedly connected with the top end of a supporting leg, an inner cavity of the insulation box is fixedly connected with a shell, a liquid level sensor electrically connected with a controller is installed at the top end of the insulation box, a pressure reducing valve is installed at the left end of the upper surface of the insulation box, a valve is installed at the right end of the lower surface of the insulation box, a water storage tank is installed at the right end of the upper surface of the insulation box, a liquid inlet pipe is installed at the top end of the water storage tank, one end of a solenoid valve electrically connected with the controller is installed at the bottom end of the water storage tank, and the other end of the solenoid valve is communicated with the top end of the insulation box.

Preferably, a plurality of the guide plates are wavy from left to right.

Preferably, an observation window is arranged on the outer wall of the heat preservation box.

Preferably, heat dissipation mechanism includes the dust cover, and the right-hand member at the shell is installed to the dust cover, the inlet port has all been seted up along circumference in the outer wall left side of dust cover, the temperature sensor with heater terminal contact is installed to the inner wall of dust cover, and temperature sensor and controller electric connection, the exhaust fan with controller electric connection is all installed at both ends about the inner wall of dust cover, the apron is installed to the right-hand member of dust cover, and the right side wall of apron evenly has seted up the venthole, the central point of apron puts and installs the threading pipe, and the threading pipe inner chamber is used for drawing forth of heater power supply wire.

Preferably, a plurality of the inlet port distributes in the outer wall of dust cover along circumference equidistance, and the inlet port is located the left side of heater terminal.

Compared with the prior art, the utility model provides a fluid circulation formula electric heater possesses following beneficial effect: the volume of the water in the insulation can is monitored by the liquid level sensor, the controller regulates and controls the on-off of the electromagnetic valve, so that the volume of the water in the insulation can is constant, the water is heated by the waste heat of the shell, the steam in the insulation can be discharged by the pressure reducing valve, the steam can be used for sterilization, the like, the hot water in the insulation can also be reused by flushing equipment, and the like, the temperature change of the binding posts of the heater is monitored by the temperature sensor, once the temperature is ultrahigh, the controller controls the exhaust fan to start, the external air enters the dust cover through the air inlet, the air takes away the heat of the binding posts of the heater, the air after absorbing the heat is discharged from the air outlet, so that the circulating cooling of the binding posts of the heater is realized, the waste heat released by the shell can be reused when the electric heater is in actual application, the energy consumption is saved, the binding posts of the electric heater can be cooled, and the short circuit caused by the fact that the insulation sheath of a lead wire is melted by the temperature rise of the binding posts of the electric heater is prevented, the heater is protected, and the safety is high.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front sectional view of the present invention;

FIG. 3 is a front sectional view of the heat dissipation mechanism;

fig. 4 is a left side sectional view of the dust cap.

In the figure: 1. landing leg, 2, waste heat utilization mechanism, 3, controller, 4, shell, 5, medium advance the pipe, 6, medium exit tube, 7, guide plate, 8, heater, 9, heat dissipation mechanism, 21, insulation can, 22, level sensor, 23, relief pressure valve, 24, valve, 25, water storage box, 26, feed liquor pipe, 27, solenoid valve, 91, dust cover, 92, inlet port, 93, temperature sensor, 94, exhaust fan, 95, apron, 96, venthole, 97, threading pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a fluid circulation type electric heater includes a support leg 1 and a controller 3, a waste heat utilization mechanism 2 is fixedly connected to the top end of the support leg 1, the controller 3 is arranged at the front side of the waste heat utilization mechanism 2, the inner cavity of the waste heat utilization mechanism 2 is provided with the shell 4, the shell 4 provides a space for heating fluid, the left end and the right end of the outer wall of the shell 4 are respectively provided with the medium inlet pipe 5 and the medium outlet pipe 6, the fluid is introduced through the medium inlet pipe 5, the medium outlet pipe 6 is opposite to the medium inlet pipe 5, used for discharging fluid, the inner wall of the shell 4 is provided with guide plates 7 at equal intervals from left to right, the guide plates 7 enable the inner cavity of the shell 4 to form a medium flow passage, the right end of the inner cavity of the shell 4 is provided with a heater 8, the heater 8 penetrates through the outer wall of the guide plate 7, the fluid is heated by electrifying the heater 8, and the right end of the shell 4 is provided with a heat dissipation mechanism 9;

the waste heat utilization mechanism 2 comprises an insulation can 21, the insulation can 21 is fixedly connected with the top end of a supporting leg 1, the inner cavity of the insulation can 21 is fixedly connected with a shell 4, the insulation can 21 is used for storing water, a liquid level sensor 22 electrically connected with a controller 3 is installed at the top end of the insulation can 21, the volume of the water in the insulation can 21 is monitored through the liquid level sensor 22, a pressure reducing valve 23 is installed at the left end of the upper surface of the insulation can 21, when the water in the insulation can 21 is heated and heated, the water vapor can be discharged from the pressure reducing valve after the pressure of the water vapor exceeds the temperature of the pressure reducing valve 23, the potential safety hazard caused by overlarge pressure in the insulation can 21 is prevented, a valve 24 is installed at the right end of the lower surface of the insulation can 21, a water storage box 25 is installed at the right end of the upper surface of the insulation can 21, the water added into the insulation can 21 is stored by the water storage box 25, a liquid inlet pipe 26 is installed at the top end of the water storage box 25, one end of an electromagnetic valve 27 electrically connected with the controller 3 is installed at the bottom end of the water storage box 25, and the other end of the electromagnetic valve 27 communicates with the top end of the incubator 21.

As a preferable scheme, the plurality of flow deflectors 7 are wavy from left to right, so that the fluid entering the shell 4 flows up and down from left to right, and the fluid is fully contacted with the heater 8, thereby improving the heating effect of the fluid.

Preferably, an observation window is further installed on the outer wall of the thermal insulation box 21, so that the worker can observe the inside condition of the thermal insulation box 21 conveniently.

Preferably, the heat dissipation mechanism 9 includes a dust cover 91, the dust cover 91 is installed at the right end of the housing 4, the left side of the outer wall of the dust cover 91 is circumferentially provided with air inlet holes 92, the inner wall of the dust cover 91 is provided with a temperature sensor 93 contacting with the terminal of the heater 8, the temperature sensor 93 is electrically connected with the controller 3 for monitoring the temperature of the terminal of the heater 8, the upper and lower ends of the inner wall of the dust cover 91 are respectively provided with an exhaust fan 94 electrically connected with the controller 3, the exhaust fan 94 can make the air flow in the dust cover 91, the heat of the terminal of the heater 8 is taken away by the external air entering the dust cover 91, the right end of the dust cover 91 is provided with a cover plate 95, the right side wall of the cover plate 95 is uniformly provided with air outlet holes 96, the center of the cover plate 95 is provided with a threading pipe 97, the threading pipe 97 is used for fixing with a lead connected with the heater 8, the inner cavity of the threading pipe 97 is used for leading out a power supply lead of the heater 8.

As preferred scheme, furthermore, a plurality of inlet holes 91 are equidistantly distributed on the outer wall of dust cover 91 along the circumference, and inlet hole 92 is located on the left side of heater 8 terminal, can make the air that gets into dust cover 91 from inlet hole 91 pass through heater 8 terminal, realizes the cooling of heater 8 terminal.

The working principle is as follows:

step one, a heater 8 is electrified to heat, fluid enters a shell 4 from a medium inlet pipe 5, the fluid moves towards the right side of the shell 4 along the upward and downward shuttling of the heater 8 under the blocking effect of a guide plate 7, the fluid is heated by the heater 8, and the fluid after heat absorption flows out along a medium outlet pipe 6, so that the purpose of the fluid is achieved, and the fluid is conveyed to a zone heating area through a pipeline;

step two, when the shell 4 is used for preheating, the electromagnetic valve 27 is controlled to be opened through the controller 3, water in the water storage tank 25 flows into a space formed by the heat insulation box 21 and the shell 4, the liquid level sensor 22 senses water level change, after the water level reaches a set value, the controller 3 controls the electromagnetic valve 27 to be closed, the shell 4 heats the water, the generated water vapor pressure exceeds the pressure set by the pressure reducing valve 23 and is discharged along the pressure reducing valve 23, the generation and utilization of the water vapor are realized, hot water in the heat insulation box 21 can also be discharged and reused through the valve 24, after the water level is reduced, the liquid level sensor 22 sends an electric signal to the controller 3, the electromagnetic valve 27 is opened again, the water storage tank 25 supplements the water to the heat insulation box 21, the waste heat is recycled, and energy is saved;

and step three, the temperature sensor 93 senses the temperature of the wiring terminal of the heater 8, once the temperature exceeds the limit, the controller 3 controls the exhaust fan 94 to work, the wind generated by the exhaust fan 94 flows from left to right, the outside air enters the dust cover 91 from the air inlet 92, the air takes away heat through the wiring terminal of the heater 8 and is exhausted from the air outlet 96, so that the temperature of the wiring terminal of the heater 8 is reduced, the damage of the wire connected with the heater due to overhigh temperature is prevented, and meanwhile, the heater 8 is prevented from being burnt out due to short circuit.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A fluid circulating electric heater comprising a leg (1) and a controller (3), characterized in that: the top end of the supporting leg (1) is fixedly connected with a waste heat utilization mechanism (2), the controller (3) is installed on the front side of the waste heat utilization mechanism (2), a shell (4) is installed in an inner cavity of the waste heat utilization mechanism (2), a medium inlet pipe (5) and a medium outlet pipe (6) are installed at the left end and the right end of the outer wall of the shell (4) respectively, a guide plate (7) is installed on the inner wall of the shell (4) from left to right in an equidistant mode, the guide plate (7) enables the inner cavity of the shell (4) to form a medium flow channel, a heater (8) is installed at the right end of the inner cavity of the shell (4), the heater (8) penetrates through the outer wall of the guide plate (7), and a heat dissipation mechanism (9) is installed at the right end of the shell (4);

waste heat utilization mechanism (2) include insulation can (21), the top fixed connection of insulation can (21) and landing leg (1), and insulation can (21) inner chamber and shell (4) fixed connection, level sensor (22) with controller (3) electric connection are installed on the top of insulation can (21), relief pressure valve (23) are installed to the upper surface left end of insulation can (21), valve (24) are installed to the lower surface right-hand member of insulation can (21), water storage box (25) are installed to the upper surface right-hand member of insulation can (21), feed liquor pipe (26) are installed on the top of water storage box (25), the one end of solenoid valve (27) with controller (3) electric connection is installed to the bottom of water storage box (25), and the top intercommunication of the other end of solenoid valve (27) and insulation can (21).

2. A fluid circulating electric heater according to claim 1, wherein: the guide plates (7) are wavy from left to right.

3. A fluid circulating electric heater according to claim 1, wherein: an observation window is arranged on the outer wall of the heat preservation box (21).

4. A fluid circulating electric heater according to claim 1, wherein: radiating mechanism (9) include dust cover (91), and the right-hand member in shell (4) is installed in dust cover (91), inlet port (92) have all been seted up along circumference in the outer wall left side of dust cover (91), temperature sensor (93) with heater (8) terminal contact are installed to the inner wall of dust cover (91), and temperature sensor (93) and controller (3) electric connection, exhaust fan (94) with controller (3) electric connection are all installed at both ends about the inner wall of dust cover (91), apron (95) are installed to the right-hand member of dust cover (91), and the right side wall of apron (95) has evenly seted up venthole (96), the central point of apron (95) puts and installs threading pipe (97), and threading pipe (97) inner chamber is used for drawing forth of heater (8) power supply wire.

5. A fluid circulating electric heater according to claim 4, wherein: the air inlets (92) are circumferentially and equidistantly distributed on the outer wall of the dust cover (91), and the air inlets (92) are located on the left side of the wiring terminal of the heater (8).