Wet dust collector

Abstract

The wet dust collector comprises a corona electrode, the corona electrode comprises an upper hook, a polar line and a lower hook, the upper portion of the upper hook is provided with a hook body, and the bottom of the upper hook and the upper portion of the lower hook are provided with connecting rods connected with the polar line; wherein the two sides of the connecting rod are provided with clamping grooves along the axial direction, and are provided with tightening pieces for pressing polar lines in the clamping grooves. According to the wet dust collector, connection of the back-bending polar line, the upper hook and the lower hook can be achieved in a clamping groove mode, then the polar line is hooped in the clamping groove through the tightening piece, therefore, fastening connection between the polar line and the upper hook and between the polar line and the lower hook is guaranteed, and the connection structure is simple. When the back-bending polar line and the back-bending hole of the connecting rod are fractured due to mechanical friction, electric corrosion and the like, the polar line can be prevented from being fractured under the action of the tightening piece.

Description

Technical Field

[0001] The present invention relates to a dust collector, and more particularly to a wet dust collector. Background Art

[0002] A wet electrostatic precipitator (WESP) is an ideal dust removal device for treating harmful substances such as dust, acid mist, water droplets, aerosol, odor, and PM2.5 in wet gases with relatively high or even saturated water content. After the dust in the dust collector is charged by high-voltage corona discharge, the charged dust reaches the dust collecting electrode under the action of the electric field force. The dust is removed along with the continuously flowing flushing liquid on the surface of the dust collecting electrode. The wet electrostatic precipitator has the characteristics of high dust removal efficiency, small pressure loss, simple operation, low energy consumption, no moving parts, no secondary dust emission, and low maintenance cost. The AC power supply of the power grid is boosted and rectified and then sent into the dust collector. The housing is connected to the dust collecting electrode and is positively charged; the negatively charged corona electrode system is suspended on insulating porcelain bottles and is evenly distributed in the middle of each dust collecting electrode (or between the dust collecting electrode and the housing).

[0003] As the main working part of the electrostatic precipitator, the corona electrode can only have a good dust collection effect when the dust cleaning effect of the corona electrode is reliable and the corona voltage and electric field current are stable. For convenient maintenance, the corona electrode is usually installed on the discharge bracket by a hook. Affected by the airflow, when the dust-containing gas flows through the dust removal channel, the corona electrode swings (vibrates), and discharge corrosion is likely to occur at the corona wire and the hook (connecting rod), and between the hook and the discharge bracket, the corona electrode breaks, the voltage cannot be boosted, the equipment shuts down, resulting in production and environmental protection accidents, etc.

[0004] Chinese Patent Document CN103537375B discloses a corona wire and a cathode device and a dust collector having the corona wire, including a substrate and barbs provided on the substrate. Both sides of the end surface of the substrate are curled to form a connecting part in the shape of a cylinder. At the same time, the cylinder wall surface of the connecting part can be deformed under pressure and extended along the direction perpendicular to the axis of the corona wire. Through the improvement of the end structure of the substrate of the corona wire in the dust collector, the direct fixation of the corona wire and the cathode frame can be realized, the reliability of the connection of the corona wire is greatly improved, the influence of wire breakage caused by welding is eliminated, and thus the high-efficiency dust removal work of the dust collector can be realized.

[0005] The existing technology has the following deficiencies: In this existing technology, although the problems of easy corrosion and easy wire breakage caused by the connection points of welding can be effectively eliminated, an additional cathode frame is required to connect the corona wire, and the structure is relatively complex. Summary of the Invention

[0006] In order to solve the technical problem of the complex structure of the corona wire in the prior art, the present invention provides a novel corona electrode structure for a wet dust collector. The connection between the electrode wire and the upper hook and the lower hook can be realized by means of a card slot, and then the electrode wire is clamped tightly in the card slot by a tightening member, so as to ensure the firm connection between the electrode wire and the upper hook and the lower hook. Specifically: a wet dust collector includes a corona electrode, and the corona electrode includes an upper hook, an electrode wire and a lower hook. The upper part of the upper hook is provided with a hook body, and the bottom of the upper hook and the upper part of the lower hook are provided with connecting rods for connecting the electrode wire; wherein: card slots are axially opened on both side walls of the connecting rod, and the connecting rod is also sleeved with a tightening member for clamping the electrode wire in the card slot.

[0007] In this solution, the connection between the connecting wire and the upper hook and the lower hook can be realized by means of a card slot, and then the electrode wire is clamped tightly in the card slot by cooperating with a double-nut clamping expansion sleeve, so as to ensure the firm connection between the electrode wire and the upper hook and the lower hook, and the connection structure is simple. Moreover, when the upper hook breaks due to mechanical friction, electrocorrosion, etc., the electrode wire can be prevented from breaking under the action of the tightening member.

[0008] Preferably, the card slot is a tapered card slot. In this solution, the selection of the tapered card slot can provide a long-stroke tightening adjustment space.

[0009] Preferably, the card slot includes an upper card slot and a lower card slot. The depth of the bottom of the upper card slot is greater than the depth of the top of the upper card slot, and the depth of the top of the lower card slot is less than the depth of the bottom of the lower card slot.

[0010] Preferably, the tightening member is a nut that cooperates with the electrode wire and a tightening member that is clamped between the nuts. In this solution, using the nut clamping tightening member as the tightening member can further strengthen the firm connection of the electrode wire in the card slot.

[0011] Preferably, the hook body is also connected with an equipotential conductive component. In this solution, the setting of the conductive component can reduce the capacitive discharge of the vibration between the upper hook and the upper guide frame caused by factors such as air flow turbulence, reduce the electrocorrosion of the inner bend of the upper hook, and make the hook body only bear the weight, further extending the service life of the corona electrode.

[0012] Preferably, the equipotential conductive component includes a wire and a connector, and the connector is connected to the hook body through the wire. In this solution, the equipotential conductive operation is realized by the cooperation of the wire and the connector, and the structure is simple.

[0013] The present invention has the following beneficial effects: 1. In the present invention, the connection between the electrode wire and the upper hook and the lower hook is realized by the cooperation of the card slot and the tightening member, which has the advantages of simple structure, good tightening effect, convenient replacement, etc.; 2. When the bending contact points of the upper and lower hooks and the electrode wire break due to mechanical friction and discharge corrosion, the electrode wire can be prevented from breaking under the action of the tightening member; 3. In the present invention, an equipotential conductive component is additionally used for secondary protection connection, which can eliminate the potential capacitive discharge hazard between the upper hook and the upper guide frame during the use of the wet dust collector, thereby greatly improving the service life of the wet dust collector. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the corona electrode in the embodiment of the wet dust collector of the present invention; Figure 2 is Figure 1 a cross-sectional view taken along A-A in Figure 3 is Figure 1 a cross-sectional view taken along B-B in Figure 4 is Figure 1 an enlarged view of I in Figure 5 is Figure 1 an enlarged view of II in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The following is a further detailed description through specific embodiments: 1. Definition Corona wire: refers to the corona wire.

[0016] 2. The reference numerals in the attached drawings of the specification include: upper hook 1, corona wire bending hole 2, card slot 3, nut and expansion member 4, corona wire 5, lower hook 6, wire 7, connector 8.

[0017] The embodiment is basically as shown in the attached Figures 1-5 : A wet dust collector includes a corona electrode, which includes an upper hook 1, a corona wire 5 and a lower hook 6. The upper part of the upper hook 1 is provided with a hook body, and the bottom of the upper hook 1 and the upper part of the lower hook 6 are provided with connecting rods for connecting the corona wire 5; card slots 3 are axially opened on both sides of the connecting rod, and the connecting rod is also sleeved with a tightening member 4 for clamping the corona wire in the card slot 3. Specifically, the card slot 3 is a tapered card slot 3, and a bending hole is provided at the bottom of the card slot 3. The card slot 3 includes an upper card slot and a lower card slot. The depth of the bottom of the upper card slot is greater than the depth of the top of the upper card slot, and the depth of the top of the lower card slot is less than the depth of the bottom of the lower card slot; the tightening member is a nut and expansion member 4 that cooperates with the corona wire 5. The hook body is also connected with an equipotential conductive component, which includes a wire 7 and a connector 8, and the connector 8 is connected to the hook body through the wire 7. The wire 7 and the hook body can be connected by welding or other connection methods.

[0018] The specific implementation process is as follows: During installation, the end of the pole line 5 is bent, and then the pole line 5 is passed through the return bend hole. After the main line and the bent secondary line are installed in the card slot 3, due to the taper of the card slot 3, the outer surface of the pole line towards the return bend hole gradually becomes higher than the outer edge of the card slot 3. The nut 4 gradually presses the pole line in the slot towards the return bend hole. At the same time, by tightening the two nuts towards each other, the expansion part expands radially inwards, further improving the fastening effect.

[0019] The above are only embodiments of the present invention. Common knowledge such as the specific structures and characteristics known in the art are not described in detail herein. Those of ordinary skill in the art know all the common general technical knowledge in the technical field to which the invention belongs before the filing date or the priority date, are able to know all the existing technologies in this field, and have the ability to apply the conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, combine their own abilities to improve and implement this solution. Some typical well-known structures or well-known methods should not become obstacles for those of ordinary skill in the art to implement this application. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. Wet dust collector, including a corona electrode, the corona electrode includes an upper hook, a wire electrode and a lower hook, a hook body is provided on the upper part of the upper hook, and connecting rods for connecting the wire electrode are provided at the bottom of the upper hook and the upper part of the lower hook; It is characterized in that: Chute grooves are axially formed on both side walls of the connecting rod, and a tightening member for clamping the wire electrode in the chute grooves is also sleeved outside the connecting rod.

2. The wet dust collector according to claim 1, It is characterized in that: The chute groove is a tapered chute groove.

3. The wet dust collector according to claim 2, It is characterized in that: The chute groove includes an upper chute groove and a lower chute groove, the depth of the bottom of the upper chute groove is greater than the depth of the top of the upper chute groove, and the depth of the top of the lower chute groove is less than the depth of the bottom of the lower chute groove.

4. The wet dust collector according to any one of claims 1-3, It is characterized in that: The tightening member is a nut that cooperates with the wire electrode and a tightening member that is clamped between the nuts and used in combination.

5. The wet dust collector according to claim 4, It is characterized in that: An equipotential conductive assembly is also connected to the hook body.

6. The wet dust collector according to claim 5, It is characterized in that: The equipotential conductive assembly includes a wire and a connector, and the connector is connected to the hook body through the wire.

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