CN212005882U - An energy-saving regenerative electric heater - Google Patents

Abstract

The utility model discloses an energy-saving regenerative electric heater, comprising a casing, a filter box, an S7-300 PLC controller, a heating resistor and an air outlet box. An installation box is arranged at the bottom of the casing, and the installation The inside of the box is fixedly installed with a FLJ blower, the output end of the FLJ blower is communicated with the housing, the FLJ blower is electrically connected with the S7-300 PLC controller through a wire, and a filter box is fixedly installed at the bottom of the installation box, so the The input end of the FLJ blower is communicated with the filter box, and the four corners of the bottom of the filter box are fixedly installed with outriggers. The utility model is provided with SFM buzzer, S7-300PLC controller and CWDZ11 temperature sensor. First, the maximum temperature value is set by the S7-300PLC controller. When the CWDZ11 temperature sensor detects that the temperature inside the casing reaches the set value, it transmits Send an electrical signal to the S7-300PLC controller, and the S7-300PLC controller automatically controls the heating resistor and the FLJ blower to stop working to avoid safety accidents. At the same time, the S7-300PLC controller automatically controls the SFM buzzer to issue an alarm to remind it.

Description

An energy-saving regenerative electric heater

technical field

The utility model relates to the technical field of regenerative electric heaters, in particular to an energy-saving regenerative electric heater.

Background technique

The regenerative electric heater uses the low-cost (only 30 cents per kilowatt-hour of electricity in Beijing) electric energy during the trough period of the power grid at night (23:00 to 7:00 the next day) to complete the conversion of electricity and heat energy within 6-8 hours. Storage, during the peak period of the power grid, the stored heat is released by radiation and convection to achieve indoor heating 24 hours a day.

The defects of the existing regenerative electric heater are:

1. The existing regenerative electric heater lacks an air purification mechanism when in use, so the outside air enters the regenerative electric heater and is heated and blown out, and the dust and some harmful gases in the air will still remain, which is easy to clean. harm to human health.

2. The existing regenerative electric heater lacks a protection mechanism, and the high internal temperature is likely to cause safety hazards.

Utility model content

The purpose of the present invention is to provide an energy-saving regenerative electric heater to solve the problems raised in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides the following technical solutions: an energy-saving regenerative electric heater, comprising a casing, a filter box, an S7-300PLC controller, a heating resistor and an air outlet box, the bottom of the casing is There is an installation box, the inside of the installation box is fixedly installed with a FLJ blower, the output end of the FLJ blower is communicated with the housing, the FLJ blower is electrically connected with the S7-300PLC controller through wires, and the A filter box is fixedly installed at the bottom, the input end of the FLJ blower is connected with the filter box, the four corners of the bottom of the filter box are fixedly installed with legs, and the top of one side of the casing is fixedly installed with an S7-300PLC controller , the SFM buzzer is fixedly installed at the position close to the S7-300PLC controller on one side of the casing, and the SFM buzzer is electrically connected with the S7-300PLC controller through wires. A CWDZ11 temperature sensor is fixedly installed on the top, and the CWDZ11 temperature sensor is electrically connected to the S7-300PLC controller through wires. The inner wall of the casing is provided with a heat storage brick, and a heating resistor is fixedly installed at the center of the interior of the casing. , the heating resistor is electrically connected with the S7-300PLC controller through a wire, an air outlet box is arranged on the top of the casing, and the air outlet box is communicated with the casing.

Preferably, an air inlet is arranged at the bottom of the filter box, a filter screen plate is arranged at the bottom of the filter box, and an activated carbon plate is arranged at the top of the filter box.

Preferably, the surface of the heating resistor is covered with a mica sleeve, one end of the heating resistor is covered with a fixed sleeve, and one side of the fixed sleeve is fixed with a connecting rod.

Preferably, the outer side of the heat storage brick is provided with a thermal insulation layer, and the outer side of the thermal insulation layer is provided with a thermal insulation layer.

Preferably, a groove is provided around the front of the air outlet box, an air outlet hole is provided at the central position of the front of the air outlet box, and a cover plate is fixedly installed on the top of the front side of the air outlet box through a hinge. There is a rubber ring around the inner side.

Preferably, a control switch and a temperature adjustment knob are arranged on the front of the S7-300PLC controller, and a power plug is connected to the bottom of the S7-300PLC controller through wires.

Compared with the prior art, the beneficial effects of the present utility model are:

1. The energy-saving regenerative electric heater is equipped with a filter box. When the external air enters the inside of the shell, the filter screen plate inside the filter box can filter the dust in the air, and the activated carbon plate inside the filter box can filter the dust in the air. It can adsorb and filter harmful gases to ensure clean air.

2. The energy-saving regenerative electric heater is equipped with SFM buzzer, S7-300PLC controller and CWDZ11 temperature sensor. First, the maximum temperature value is set through the S7-300PLC controller. When the CWDZ11 temperature sensor detects the inside of the shell When the temperature reaches the set value, it will transmit an electrical signal to the S7-300PLC controller, and the S7-300PLC controller will automatically control the heating resistor and the FLJ blower to stop working to avoid safety accidents. At the same time, the S7-300PLC controller automatically controls the SFM buzzer to emit Alerts serve as reminders.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic diagram of the structure of a heat storage brick of the present utility model;

Fig. 3 is the heating resistor structure schematic diagram of the utility model;

Fig. 4 is the filter box structure schematic diagram of the present utility model;

FIG. 5 is a schematic structural diagram of an air outlet box of the present invention.

In the picture: 1. Shell; 2. Installation box; 3. FLJ blower; 4. Filter box; 401, Air inlet; 402, Filter screen plate; 403, Activated carbon plate; ;7, S7-300PLC controller; 701, control switch; 702, temperature adjustment knob; 703, power plug; 8, heat storage brick; 801, thermal insulation layer; 802, thermal insulation layer; 9, heating resistance; 901, mica sleeve; 902, fixed sleeve; 903, connecting rod; 10, CWDZ11 temperature sensor; 11, air outlet; 1101, groove; 1102, air outlet; 1103, cover plate; 1104, rubber ring.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" The orientation or positional relationship indicated by "" etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, so as to The specific orientation configuration and operation is therefore not to be construed as a limitation of the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present utility model, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "provided with", "connected", etc., should be understood in a broad sense, for example, "connected" may be a fixed The connection can also be a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Please refer to Figures 1-5, an embodiment provided by the present utility model: an energy-saving regenerative electric heater, comprising a housing 1, a filter box 4, an S7-300 PLC controller 7, a heating resistor 9 and an air outlet Box 11, the bottom of the housing 1 is provided with an installation box 2, the interior of the installation box 2 is provided with a FLJ blower 3, the output end of the FLJ blower 3 is communicated with the housing 1, and the FLJ blower 3 communicates with the S7-300PLC controller 7 through a wire Electrical connection, the FLJ blower 3 is used to blow air into the housing 1, the bottom of the installation box 2 is welded with a filter box 4, the input end of the FLJ blower 3 is communicated with the filter box 4, and the filter box 4 is used for dust in the air. The four corners of the bottom of the filter box 4 are welded with outriggers 5, and the outriggers 5 support the filter box 4. The top of the shell 1 side is fixedly installed with an S7-300 PLC controller 7 by bolts. The SFM buzzer 6 is fixedly installed by bolts at the position close to the S7-300PLC controller 7 on one side of the housing 1. The SFM buzzer 6 is electrically connected to the S7-300PLC controller 7 through wires. The CWDZ11 temperature sensor 10 is fixedly installed on the top by bolts, and the CWDZ11 temperature sensor 10 is electrically connected with the S7-300PLC controller 7 through wires. The temperature value can be set in advance through the S7-300PLC controller 7 during use, and then when the CWDZ11 temperature When the sensor 10 detects that the temperature inside the casing 1 exceeds the set value, the CWDZ11 temperature sensor 10 transmits a signal to the S7-300PLC controller 7, and the S7-300PLC controller 7 automatically controls the heating resistor 9 and the FLJ blower 3 to stop working, while controlling The SFM buzzer 6 emits a sound reminder, the inner wall of the casing 1 is provided with a heat storage brick 8, the heat storage brick 8 stores heat, and a heating resistor 9 is installed in the center of the interior of the casing 1 by bolts, and the heating resistors 9 pair The shell 1 is heated inside, and the heating resistor 9 is electrically connected to the S7-300 PLC controller 7 through wires. The top of the shell 1 is provided with an air outlet box 11. The air outlet box 11 communicates with the shell 1. The air outlet box 11 is used for Drain the hot air.

Further, the bottom of the filter box 4 is provided with an air inlet 401, and the air enters the inside of the filter box 4 through the air inlet 401, and a filter screen plate 402 is provided at the position of the bottom of the filter box 4, and the filter screen plate 402 cleans the dust in the air. For filtering, an activated carbon plate 403 is provided at the top position of the filter box 4, and the activated carbon plate 403 adsorbs and filters harmful gases.

Further, the surface of the heating resistor 9 is covered with a mica sleeve 901, and the mica sleeve 901 acts as insulation protection for the heating resistor 9, one end of the heating resistor 9 is covered with a fixed sleeve 902, and one side of the fixed sleeve 902 is welded with a connecting rod 903, The connecting rods 903 are fixedly connected to the heat storage bricks 8 by bolts.

Further, an insulating layer 801 is provided on the outer side of the thermal storage brick 8, and the thermal insulating layer 801 has a thermal insulation effect on the thermal storage brick 8 to avoid heat loss. The thermal effect avoids heat transfer to the casing 1, and the thermal expansion and cold contraction can easily deform the casing 1.

Further, a groove 1101 is provided around the front of the air outlet box 11, and the groove 1101 is convenient for the insertion of the rubber ring 1104, and an air outlet hole 1102 is provided at the central position of the front surface of the air outlet box 11, and the hot air inside the air outlet box 11 passes through the outlet. The air hole 1102 is discharged, and the top of the front of the air outlet box 11 is fixedly installed with a cover plate 1103 through hinges. When not in use, the cover plate 1103 seals the air outlet hole 1102, and the inner side of the cover plate 1103 is provided with a rubber ring 1104. The rubber ring 1104 is inserted into the groove 1101 for sealing.

Further, the front of the S7-300PLC controller 7 is provided with a control switch 701 and a temperature adjustment knob 702, the temperature value is set in advance through the temperature adjustment knob 702, and then the control switch 701 is pressed to control the heating resistor 9 and the FLJ blower 3 to start working, S7 The bottom of the -300PLC controller 7 is connected with a power plug 703 through wires, and the S7-300PLC controller 7 is connected to the power supply through the power plug 703 .

Working principle: When using, first connect the power supply through the power plug 703, then set the temperature value in advance through the temperature adjustment knob 702, press the control switch 701 to control the heating resistor 9 and the FLJ blower 3 to start working, and the air enters the filter through the air inlet 401. Inside the box 4, the filter screen plate 402 filters the dust in the air, the activated carbon plate 403 adsorbs and filters the harmful gas, and then enters the inside of the housing 1, the heating resistor 9 heats the air, and the heat is stored in the heat storage brick 8. , and then the hot air is led out from the air outlet 1102. When not in use, cover the cover plate 1103 for sealing to prevent heat loss.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (6)

1. An energy-saving regenerative electric heater, comprising a housing (1), a filter box (4), an S7-300PLC controller (7), a heating resistor (9) and an air outlet box (11), characterized in that In that: an installation box (2) is arranged at the bottom of the casing (1), a FLJ blower (3) is fixedly installed in the inside of the installation box (2), and the output end of the FLJ blower (3) is connected to the casing (1) Connected, the FLJ blower (3) is electrically connected to the S7-300PLC controller (7) through a wire, the bottom of the installation box (2) is fixedly installed with a filter box (4), and the FLJ blower ( The input end of 3) is communicated with the filter box (4), the four corners of the bottom of the filter box (4) are fixedly installed with legs (5), and the top of one side of the shell (1) is fixedly installed with S7- 300PLC controller (7), an SFM buzzer (6) is fixedly installed at a position close to the S7-300PLC controller (7) on one side of the casing (1), and the SFM buzzer (6) passes through a wire It is electrically connected with the S7-300PLC controller (7), the top of the inner side of the casing (1) is fixedly installed with a CWDZ11 temperature sensor (10), and the CWDZ11 temperature sensor (10) is controlled with the S7-300PLC through a wire The device (7) is electrically connected, the inner wall of the casing (1) is provided with a heat storage brick (8), and a heating resistor (9) is fixedly installed in the center of the interior of the casing (1). (9) Electrically connected to the S7-300 PLC controller (7) through wires, an air outlet box (11) is provided on the top of the casing (1), and the air outlet box (11) is connected to the casing (1) Connected. 2. An energy-saving regenerative electric heater according to claim 1, characterized in that: the bottom of the filter box (4) is provided with an air inlet (401), and the inner bottom of the filter box (4) is provided with an air inlet (401). A filter screen plate (402) is arranged at the position of the filter box (4), and an activated carbon plate (403) is arranged at the inner top position of the filter box (4). 3. An energy-saving regenerative electric heater according to claim 1, characterized in that: the surface of the heating resistor (9) is covered with a mica jacket (901), and one end of the heating resistor (9) is A fixing sleeve (902) is covered, and a connecting rod (903) is fixedly installed on one side of the fixing sleeve (902). 4. An energy-saving regenerative electric heater according to claim 1, characterized in that: a thermal insulation layer (801) is provided on the outer side of the thermal storage brick (8), and an outer side of the thermal insulation layer (801) is provided with a thermal insulation layer (801). There is thermal insulation (802). 5. The energy-saving regenerative electric heater according to claim 1, wherein a groove (1101) is provided around the front of the air outlet box (11), and the air outlet box (11) is provided with a groove (1101). ) is provided with an air outlet (1102) at the central position of the front side, the top of the front of the air outlet box (11) is fixedly installed with a cover plate (1103) through hinges, and a rubber ring is provided around the inner side of the cover plate (1103) (1104). 6. An energy-saving regenerative electric heater according to claim 1, characterized in that: a control switch (701) and a temperature adjustment knob (702) are provided on the front of the S7-300PLC controller (7) , the bottom of the S7-300PLC controller (7) is connected with a power plug (703) through wires.

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