CN204767891U - Dust removal machine - Google Patents

Abstract

The utility model discloses a dust removal machine, include the frame and locate aspirating chamber in the frame, bottom in the aspirating chamber is equipped with PRESSURE DETECTOR, the pressure and the output detection signal of PRESSURE DETECTOR detection self dust that receives, be equipped with indicating units in the frame, indicating units is in response to this detected signal with the suggestion staff. The utility model discloses a dust removal machine piles up at dust in the aspirating chamber and in time gives staff's suggestion when too much.

Description

A kind of dust removal machine

Technical field

The utility model relates to a kind of dust removal machine.

Background technology

Dust removal machine refers to the equipment that dust is separated from flue gas.

Existing notification number be CN201669016U patent discloses a kind of manhole-fixing mechanism for cloth bag pulse dust collector, comprise casing, the sidewall of the lower end of described casing is provided with manhole-fixing mechanism, described manhole-fixing mechanism comprises manhole, holder, connect depression bar, button and clasp, the side of the manhole that described holder is fixed, holder and casing fix, described button is located at the opposite side of manhole, one end of described connection depression bar and holder fix same, the other end connecting depression bar is provided with clasp, described clasp and button phase close-fitting.

The dust-cleaning principle of above-mentioned patent dust removal machine is by dust accumulation at casing, becomes after block clear up casing until dust accretions.

But, when staff does not clear up dust in time because of carelessness, easily cause dust removal machine to block.

Utility model content

For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of dust removal machine, gives staff's prompting when dust accretions is too much in aspirating chamber in time.

For achieving the above object, the invention provides following technical scheme: a kind of dust removal machine, comprise frame and be located at the aspirating chamber in described frame, the bottom in described aspirating chamber is provided with pressure detector;

Described frame is provided with indicating member, described indicating member in response to the detection signal of described pressure sensing cell to point out staff.

The utility model is set to further: when the dust accretions in described aspirating chamber is excessive, described pressure detector exports this detection signal.

The utility model is set to further: described pressure detector comprises,

Detecting unit, in order to export the detection voltage representing self pressure size;

Comparing unit, in order to receive this detection voltage and reference voltage, and exports this detection signal when this detection voltage is less than this reference voltage;

Reference voltage generating circuit, in order to convert external voltage to this reference voltage and to export.

The utility model is set to further: described detecting unit comprises pressure cell, and described pressure cell foundation pressure size is to produce this detection voltage corresponding.

The utility model is set to further: indicating member comprises,

Control unit, exports control signal in response to this detection signal;

Indicator lamp, lights in response to this control signal.

The utility model is set to further: described control unit comprises,

Switch element, it controls pole and receives this detection signal, and its driving stage is connected with described indicator lamp.

The utility model is set to further: described pressure detector is pressure switch, and described indicating member is buzzer, and described pressure switch is connected with described buzzer.

By adopting technique scheme, when the dust accretions in aspirating chamber is too much, the pressure suffered by pressure cell is excessive, therefore output detections signal, and indicator lamp is lighted, and gives staff's prompting; When the dust accretions in aspirating chamber is too much, pressure switch is connected, and makes buzzer call, gives staff's prompting.

Compared to prior art, dust removal machine of the present utility model has following advantage: give staff's prompting in time when dust accretions is too much in aspirating chamber.

Accompanying drawing explanation

Fig. 1 is the first view of the utility model dust removal machine;

Fig. 2 is the schematic diagram of the pressure detector of the first embodiment;

Fig. 3 is the schematic diagram of the indicating member of the first embodiment;

Fig. 4 is the schematic diagram of the second embodiment pressure detector and indicating member;

Fig. 5 is the schematic diagram of power circuit.

Reference numeral: 1, frame; 2, aspirating chamber; 3, pressure detector; 4, indicating member; 01, detecting unit; 302, comparing unit; 303, reference voltage generating circuit; 500, power circuit; 510, rectification unit; 520, the first power supply unit.

Detailed description of the invention

Referring to figs. 1 through Fig. 5, the embodiment of the utility model dust removal machine is described further.

With reference to Fig. 1, dust removal machine of the present utility model, comprises frame 1, aspirating chamber 2, pressure detector 3 and indicating member 4.Aspirating chamber 2 is arranged in frame 1, and indicating member 4 is arranged on the sidewall of aspirating chamber 2, and pressure detector 3 is arranged on the bottom in aspirating chamber 2.Wherein, aspirating chamber 2 of the present utility model is arranged in funnel-form, and the sidewall of aspirating chamber 2 arranges sliding door.Funnelform aspirating chamber 2 makes the easier accumulation of dust, and sliding door makes aspirating chamber 2 be convenient to cleaning.

According to above structure, the utility model provides following two kinds of embodiments.

Embodiment one:

With reference to Fig. 2, the pressure detector in embodiment comprises piezo-resistance, resistance R1, comparator U1, resistance R2, resistance R3 and adjustable resistance R4.

Wherein, one end of resistance R1 is coupled to VCC voltage, the other end is coupled to one end of piezo-resistance, the other end ground connection of piezo-resistance, the input in the same way of comparator U1 is coupled to the common junction of piezo-resistance and resistance R1, reverse input end is coupled to reference voltage Vref, and the output of comparator is coupled to one end of resistance R2, and the other end of resistance R2 is in order to export comparison signal V1;

Wherein, one end of resistance R3 is coupled to VCC voltage, and the other end is coupled to one end of adjustable resistance R4, the other end ground connection of adjustable resistance R4, and the common junction of resistance R3 and adjustable resistance R4 is in order to export this reference voltage Vref.

With reference to Fig. 3, the indicating member in embodiment comprises triode T1, resistance R5 and indicator lamp L1.

Wherein, the base stage of triode T1 is coupled to the output of comparator U1, and the colelctor electrode of triode T1 is coupled to one end of indicator lamp L1, and the other end of indicator lamp L1 is coupled to VCC voltage, the emitter stage of triode T1 is coupled to one end of resistance R5, the other end ground connection of resistance R5.

In conjunction with above-mentioned annexation, the dust removal machine of the present embodiment works as follows:

When the dust accretions amount in aspirating chamber is more, pressure increase suffered by piezo-resistance, cause self resistance to become large, the detection voltage therefore exported between piezo-resistance and resistance R1 also correspondingly increases, when this detection voltage is greater than reference voltage, comparator exports the detection signal of high level, control triode T1 conducting, the conducting of triode T1, creates control signal Crl, control indicator lamp L1 to light, be given to staff's prompting in time.

Embodiment two:

With reference to Fig. 4, the pressure detector in embodiment is pressure switch P1, and the indicating member in embodiment is buzzer B1, and one end of pressure switch P1 is coupled to VCC voltage, and the other end is coupled to one end of buzzer B1, the other end ground connection of buzzer B1.

In conjunction with above-mentioned annexation, the dust removal machine of the present embodiment works as follows:

When the dust accretions amount in aspirating chamber is more, cause pressure switch P1 to produce mechanical deformation, finally its normally opened contact closes, and controls buzzer B1 and pipes, and is given to staff's prompting in time.

With reference to Fig. 5, the VCC voltage of above two embodiments all can be provided by power circuit 500, and power circuit 500 comprises rectification unit 510 and power supply unit 520.

Wherein, rectification unit 510 is bridge rectifier, and two input is respectively coupled to live wire L and zero line N, and the line voltage of 220V is carried out to rectification and exports; Wherein, the first power supply unit 520 is coupled to the output of rectification unit 510, receives the voltage after rectification and carries out voltage stabilizing to export VCC voltage.

The above is only preferred embodiment of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims (7)

1. a dust removal machine, comprises frame and is located at the aspirating chamber in described frame, it is characterized in that: the bottom in described aspirating chamber is provided with pressure detector;

Described frame is provided with indicating member, described indicating member in response to the detection signal of described pressure sensing cell to point out staff.

2. dust removal machine according to claim 1, is characterized in that: when the dust accretions in described aspirating chamber is excessive, described pressure detector exports this detection signal.

3. dust removal machine according to claim 2, is characterized in that: described pressure detector comprises,

Detecting unit, in order to export the detection voltage representing self pressure size;

Comparing unit, in order to receive this detection voltage and reference voltage, and exports this detection signal when this detection voltage is less than this reference voltage;

Reference voltage generating circuit, in order to convert external voltage to this reference voltage and to export.

4. dust removal machine according to claim 3, is characterized in that: described detecting unit comprises pressure cell, and described pressure cell foundation pressure size is to produce this detection voltage corresponding.

5. dust removal machine according to claim 2, is characterized in that: indicating member comprises,

Control unit, exports control signal in response to this detection signal;

Indicator lamp, lights in response to this control signal.

6. dust removal machine according to claim 5, is characterized in that: described control unit comprises,

Switch element, it controls pole and receives this detection signal, and its driving stage is connected with described indicator lamp.

7. dust removal machine according to claim 2, is characterized in that: described pressure detector is pressure switch, and described indicating member is buzzer, and described pressure switch is connected with described buzzer.