阅读说明：本技术 太阳能热管加热装置的清洁方法 (Cleaning method of solar heat pipe heating device ) 是由 姜方军 于 2020-04-14 设计创作，主要内容包括：本发明涉及一种太阳能热管加热装置的清洁方法,将若干基环一一对应地套设到储热箱部热管的吸热端上,驱动基环沿储热箱部热管的吸热端的延伸方向做往复平移运动,基环的内周面上设有内抹布层、外周面上设有外抹布层；当基环朝储热箱部热管的吸热端的一端移动时,仅内抹布层对储热箱部热管的吸热端的下侧面进行擦拭；当基环朝储热箱部热管的吸热端的另一端移动时,仅内抹布层对储热箱部热管的吸热端的上侧面进行擦拭和外抹布层对反光板的反光面进行擦拭。本发明具有能够对热管的吸热端和反光板进行清洁的优点,解决了热管利用太阳能时表面的积尘需要人工清洁的问题。(The invention relates to a cleaning method of a solar heat pipe heating device, which comprises the steps of sleeving a plurality of base rings on the heat absorption ends of heat pipes of a heat storage box part in a one-to-one correspondence manner, driving the base rings to do reciprocating translation motion along the extension direction of the heat absorption ends of the heat pipes of the heat storage box part, arranging an inner wiping cloth layer on the inner peripheral surface of each base ring, and arranging an outer wiping cloth layer on the outer peripheral surface of each base ring; when the base ring moves towards one end of the heat absorption end of the heat pipe of the heat storage box part, only the inner wiping cloth layer wipes the lower side surface of the heat absorption end of the heat pipe of the heat storage box part; when the base ring moves towards the other end of the heat absorption end of the heat pipe of the heat storage box part, only the inner wiping cloth layer wipes the upper side face of the heat absorption end of the heat pipe of the heat storage box part and the outer wiping cloth layer wipes the light reflecting face of the light reflecting plate. The invention has the advantage of cleaning the heat absorption end and the reflector of the heat pipe, and solves the problem that the dust on the surface of the heat pipe needs to be cleaned manually when the heat pipe utilizes solar energy.)

1. A cleaning method of a solar heat pipe heating device is characterized in that a plurality of base rings connected together through connecting strips are sleeved on heat absorption ends of heat pipes of a heat storage box part in a one-to-one correspondence mode, the base rings are driven to do reciprocating translation motion along the extension direction of the heat absorption ends of the heat pipes of the heat storage box part, an inner wiping cloth layer is arranged on the inner circumferential surface of each base ring, and an outer wiping cloth layer is arranged on the outer circumferential surface of each base ring; when the base ring moves towards one end of the heat absorption end of the heat pipe of the heat storage box part, the base ring is jacked up through the base ring lifting cylinder, so that the inner wiping cloth layer is abutted to the lower side face of the heat absorption end of the heat pipe of the heat storage box part and is spaced from the upper side face of the heat absorption end of the heat pipe of the heat storage box part, and the outer wiping cloth layer is spaced from the reflecting face of the reflector; when the base ring moves towards the other end of the heat absorption end of the heat storage box part heat pipe, the base ring is pulled down through the base ring lifting cylinder to enable the inner rubberizing layer and the lower side face of the heat absorption end of the heat storage box part heat pipe to be disconnected and connected with the upper side face of the heat absorption end of the heat storage box part heat pipe in a butt mode, and the outer rubberizing layer and the light reflection face of the light reflection plate are connected in a butt mode.

2. A method of cleaning a solar heat pipe heating apparatus as claimed in claim 1, wherein the inner and outer canvas layers are both of an elastic structure.

3. A method for cleaning a solar heat pipe heating apparatus as defined in claim 1, further comprising a base ring storage space for storing a base ring at an end of the reflector plate remote from the heat storage tank after the base ring is removed from a heat absorbing end of the heat pipe of the heat storage tank, wherein the reflector plate is located outside the base ring storage space.

4. The method of claim 1, wherein the base ring is driven to translate by a base ring translation mechanism, the base ring translation mechanism comprises two driving units, all base rings are located between the two driving units, the driving units comprise a base, a connecting block, a guide rod connected to the base, a screw rod rotatably connected to the base, and a screw rod driving motor for driving the screw rod to rotate, the guide rod is arranged on the connecting block in a penetrating manner, the screw rod is connected to the connecting block in a threaded manner, the connecting block is connected with the base ring, the screw rod is parallel to the guide rod, and the extension direction of the screw rod is the same as the extension direction of the heat absorption end of the heat pipe of the heat storage box.

5. A method for cleaning a solar heat pipe heating apparatus according to claim 1, further comprising providing a base ring cleaning mechanism for cleaning the inner wiping cloth layer and the outer wiping cloth layer of the base ring in a one-to-one correspondence manner, wherein the inner and outer circumferential surfaces of the base ring are concentric, the base ring cleaning mechanism comprises a cleaning mechanism outer rotating shaft capable of penetrating into the base ring, a rotating shaft driving motor for driving the cleaning mechanism outer rotating shaft to rotate, a plurality of inner squeezing rods for squeezing the inner wiping cloth layer and a plurality of outer squeezing rods for squeezing the outer wiping cloth layer, the inner squeezing rods and the outer squeezing rods are connected together with the cleaning mechanism outer rotating shaft, and the inner squeezing rods and the outer squeezing rods are circumferentially distributed along the cleaning mechanism outer rotating shaft.

6. A cleaning method for a solar heat pipe heating device according to claim 5, wherein a dust collecting groove for collecting dust scraped off by an inner troweling layer from a heat absorbing end of a heat pipe of the heat storage box portion is formed in one side of the base ring facing the heat storage box portion, a plug sealing spring is further arranged on the base ring, a dust exhaust hole is formed in the lowest point of the bottom wall of the dust collecting groove, an upward-opening plug is arranged in the dust exhaust hole, the plug sealing spring is used for driving the plug to seal the dust exhaust hole, the plug is made of a ferromagnetic body, and a magnet which enables the plug to be opened when the inner extrusion rod is located between the plug and an outer rotating shaft of the cleaning mechanism portion and aligned with the plug is arranged on the inner extrusion rod in an adsorbing mode.

7. A cleaning method for a solar heat pipe heating apparatus according to claim 5, wherein an inner hole is formed in the cleaning mechanism portion outer shaft, a cleaning mechanism portion inner shaft is inserted into the inner hole, the cleaning mechanism portion inner shaft is connected with the outer shaft rotating structure, the cleaning mechanism portion outer shaft is eccentrically arranged with the cleaning mechanism portion inner shaft, a plurality of guide pipes which penetrate through the inner hole and radially extend along the circumferential direction of the cleaning mechanism portion outer shaft are arranged on the cleaning mechanism portion outer shaft, an extrusion rod connecting rod and an extrusion rod connecting rod inner displacement spring which drives the extrusion rod connecting rod to move towards the inner hole are inserted into the guide pipes, the inner end of the extrusion rod connecting rod is aligned with the circumferential surface of the cleaning mechanism portion inner shaft, the inner extrusion rod and the outer extrusion rod are both connected to the outer end of the extrusion rod connecting rod, the rotating angular speeds of the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part are unequal; when the extrusion rod connecting rod is positioned at the position where the gap between the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part is minimum, the inner end of the extrusion rod connecting rod is abutted against the peripheral surface of the inner rotating shaft of the cleaning mechanism part, the inner extrusion rod is pressed on the inner wiping cloth layer, and the outer extrusion rod and the outer wiping cloth layer are spaced; when the extrusion rod connecting rod is positioned at the maximum clearance between the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part, the inner end of the extrusion rod connecting rod is spaced from the inner rotating shaft of the cleaning mechanism part, the inner extrusion rod is spaced from the inner wiping cloth layer, and the outer extrusion rod presses the outer wiping cloth layer.

8. A cleaning method for a solar heat pipe heater as claimed in claim 7, wherein the inner hole is closed at both ends to form a sealed cavity of the rotating shaft, only one end of the inner rotating shaft of the cleaning mechanism is located in the sealed cavity of the rotating shaft, the rotating structure of the outer rotating shaft is located outside the sealed cavity of the rotating shaft, the sealed cavity of the rotating shaft is connected with the air pump, the connecting rod of the squeezing rod is connected with the guide tube in a sealing and sliding manner, and the guide sleeve is provided with a dust suction channel with an inlet end facing the inner rubberizing layer and communicated with the sealed cavity of the rotating shaft.

9. The method of claim 8, wherein one end of the inner hole is closed by a rubber plate, the rotating shaft of the cleaning mechanism part passes through the rubber plate and enters the rotating shaft part sealing cavity, and the rubber plate is connected with the rotating shaft of the cleaning mechanism part in a sealing manner.

10. The method for cleaning a solar heat pipe heating apparatus as claimed in claim 5, wherein the outer rotary shaft rotating structure comprises an outer rotary shaft outer ring gear coaxially disposed on the cleaning mechanism part as a rotary shaft, a driving gear engaged with the outer rotary shaft outer ring gear, and an outer rotary shaft driving motor for driving the driving gear to rotate.

Technical Field

The invention relates to the technical field of solar energy utilization, in particular to a cleaning method of a solar heat pipe heating device.

Background

In the production process of the special transformer, the transformer needs to be dried by an oven. The existing drying oven for drying the transformer generates steam by burning diesel oil to heat a water supply tank, and then radiates heat when the steam flows through a heat exchange pipe positioned in the drying oven to realize the drying effect. Therefore, the existing transformer production equipment cannot utilize solar energy to heat an oven so as to dry the transformer, and the inventor designs a light-reflecting tracking solar heat pipe heating device for the purpose, but the existing equipment does not have a cleaning mechanism capable of cleaning a heat pipe and a light reflecting plate in the device and a cleaning mechanism capable of cleaning the cleaning mechanism.

Disclosure of Invention

The first purpose of the invention is to provide a cleaning method of a solar heat pipe heating device capable of cleaning a heat absorption end and a reflector of a heat pipe, which solves the problem that the dust on the surface of the heat pipe needs to be cleaned manually when the heat pipe utilizes solar energy.

The second purpose of the invention is to provide a cleaning method of a solar heat pipe heating device, which solves the problem that the cleaning cloth layer of the cleaning structure can not be cleaned on line by itself.

The technical problem is solved by the following technical scheme: a cleaning method of a solar heat pipe heating device is characterized in that a plurality of base rings connected together through connecting strips are sleeved on heat absorption ends of heat pipes of a heat storage box part in a one-to-one correspondence mode, the base rings are driven to do reciprocating translation motion along the extension direction of the heat absorption ends of the heat pipes of the heat storage box part, an inner wiping cloth layer is arranged on the inner circumferential surface of each base ring, and an outer wiping cloth layer is arranged on the outer circumferential surface of each base ring; when the base ring moves towards one end of the heat absorption end of the heat pipe of the heat storage box part, the base ring is jacked up through the base ring lifting cylinder, so that the inner wiping cloth layer is abutted to the lower side face of the heat absorption end of the heat pipe of the heat storage box part and is spaced from the upper side face of the heat absorption end of the heat pipe of the heat storage box part, and the outer wiping cloth layer is spaced from the reflecting face of the reflector; when the base ring moves towards the other end of the heat absorption end of the heat storage box part heat pipe, the base ring is pulled down through the base ring lifting cylinder to enable the inner rubberizing layer and the lower side face of the heat absorption end of the heat storage box part heat pipe to be disconnected and connected with the upper side face of the heat absorption end of the heat storage box part heat pipe in a butt mode, and the outer rubberizing layer and the light reflection face of the light reflection plate are connected in a butt mode. In the dust removal process of the technical scheme, the cleaned parts of the heat absorption ends of the light reflection plate and the heat storage box part heat pipe are only cleaned in one moving direction of the base ring and are disconnected with the cleaning cloth layer in the other moving direction of the base ring, so that the cleaning effect can be improved.

Preferably, the inner and outer wiping cloth layers are both elastic structures. Because the base ring is concentric with the heat absorption end of the heat pipe of the heat storage box part, the gap between the base ring and the heat absorption end of the heat pipe of the heat storage box part is changed along the circumferential direction of the base ring, and the technical scheme can ensure that the wiping cloth layer can be reliably abutted with the heat absorption end of the heat pipe of the heat storage box part to be carried out and cleaned. Preferably, the inner and outer wiping cloth layers are made of sponge.

The invention also comprises a base ring storage space which is positioned at one end of the reflector plate, which is far away from the heat storage box, and is used for storing the base ring after the base ring is separated from the heat absorption end of the heat pipe of the heat storage box part, and the reflector plate is positioned outside the base ring storage space. The base ring can not shield the heat absorption end of the heat pipe of the heat storage box part when the base ring does not remove dust to the heat absorption end of the heat pipe of the heat storage box part, so that the lower heat absorption effect of the heat absorption end of the heat pipe of the heat storage box part is avoided being interfered. During this technical scheme, outer rag layer and reflector panel contact, interior rag layer and the upside surface contact of the heat absorption end of heat-retaining box portion heat pipe when base ring moves towards base ring storage space for the dust falls to base ring storage space and the part is the one end of detaining at the reflector panel. The dust is detained when reflector panel one end, then receives when the vibration wind blows can disperse again and open the reflector panel to be unfavorable for maintaining the storage dirt effect of reflector panel.

Preferably, one side of the base ring facing the heat storage box is provided with a dust collecting groove for collecting dust scraped off by the inner wiping cloth layer from the upper part of the heat absorbing end of the heat pipe of the heat storage box part. The dust that wipes down when can make the base ring remove towards heat storage box place direction and the downside surface of the heat absorption end of the clean heat storage box portion heat pipe of inner cleaning cloth layer falls to and connects the dirt inslot, avoids dropping on the reflector panel and influences the storage effect of reflector panel and the dirt on outer mopping layer with higher speed.

Preferably, the base ring is further provided with a plug sealing spring, a dust exhaust hole is formed in the lowest point of the bottom wall of the dust receiving groove, a plug which is opened upwards is arranged in the dust exhaust hole, and the plug sealing spring is used for driving the plug to seal the dust exhaust hole. The dust in the dust collecting groove is convenient to discharge.

Preferably, the end face of the base ring is provided with a vertical guide sliding groove extending in the vertical direction, and the plug is connected in the vertical guide sliding groove in a sliding manner. When the dust exhaust hole needs to be closed after the plug is opened, the plug can reliably and automatically close the dust exhaust hole.

Preferably, the plug sealing spring is a pressure spring and is located in the vertical guide sliding groove. The layout is compact, and the dust generated during the working of the plug sealing spring can be reduced.

Preferably, the part of the upper end surface of the plug, which is positioned outside the sliding groove, is an inclined surface which inclines towards one end far away from the base ring. The effect of dust discharge can be avoided being influenced by the blocking of the plug when the dust is discharged.

As preferred, the base ring passes through the base ring translation and drives and realize the translation, base ring translation mechanism includes two drive unit, and all base rings all are located between two drive unit, drive unit includes base, connecting block, connects guide arm on the base, rotates lead screw and the drive screw rod pivoted lead screw driving motor of connection on the base, the guide arm is worn to establish on the connecting block, lead screw threaded connection is in on the connecting block, the connecting block with the base ring links together, lead screw and guide arm are parallel, the extending direction of lead screw with the extending direction of the heat absorption end of heat-retaining box portion heat pipe is the same. The stability of the driving base ring in translation is good.

Preferably, the two drive units share the screw drive motor. It is possible to have both drive units reliably drive the base ring in synchronism with each other.

Preferably, the base includes the chassis and connects two collateral branch bracers at the chassis both ends, the direction of distribution of two collateral branch bracers is with the extending direction of guide arm is the same, the both ends of guide arm are connected on two collateral branch bracers, the both ends of lead screw are rotated and are connected on two collateral branch bracers, the connecting block is located between two collateral branch bracers.

Preferably, the base ring cleaning mechanism is arranged to clean the inner wiping cloth layer and the outer wiping cloth layer of the base ring in a one-to-one correspondence manner, the inner circumferential surface and the outer circumferential surface of the base ring are concentric, the base ring cleaning mechanism comprises a cleaning mechanism part outer rotating shaft capable of penetrating into the base ring, a rotating shaft driving motor for driving the cleaning mechanism part outer rotating shaft to rotate, a plurality of inner extrusion rods for extruding the inner wiping cloth layer and a plurality of outer extrusion rods for extruding the outer wiping cloth layer, the inner extrusion rods and the outer extrusion rods are connected together through the cleaning mechanism part outer rotating shaft, and the inner extrusion rods and the outer extrusion rods are distributed along the circumferential direction of the cleaning mechanism part outer rotating shaft. The cleaning cloth layer needs to be extruded and moved to be sleeved on the outer rotating shaft of the cleaning mechanism part, the outer rotating shaft of the cleaning mechanism part rotates to enable the inner extrusion rod to move along the circumferential direction of the base ring to perform transposition extrusion on the inner cleaning cloth layer so as to beat out dust on the inner cleaning cloth layer, and the outer cleaning cloth layer performs transposition extrusion on the outer cleaning cloth layer so as to beat out dust on the outer cleaning cloth layer for the extrusion rod to move along the circumferential direction of the base ring. The second purpose is realized, and the cleaning effect is better by taking the cleaning cloth layer as an elastic structure.

Preferably, when the base ring is sleeved on the outer rotating shaft of the cleaning mechanism part to a set position, both ends of the inner extrusion rod exceed the inner wiping cloth layer along the axial direction of the base ring, and both ends of the outer extrusion rod exceed the outer wiping cloth layer along the axial direction of the base ring. Can improve the cleaning effect when cleaning the rag layer.

Preferably, the base ring is towards one side of the heat storage box is provided with a dust collecting groove for collecting dust which is scraped down by an inner wiping cloth layer on a heat absorption end of a heat pipe of the heat storage box part, an end cap sealing spring is further arranged on the base ring, a dust exhaust hole is formed in the lowest point of the bottom wall of the dust collecting groove, an end cap which is opened upwards is arranged in the dust exhaust hole, the end cap sealing spring is used for driving the end cap to seal the dust exhaust hole, the end cap is made of a ferromagnetic body, and an inner extrusion rod is provided with a magnet which is positioned between the end cap and an outer rotating shaft of the cleaning mechanism part and is adsorbed when the inner extrusion rod is aligned with the end cap so that the end cap is opened. In the cleaning process of the rag layer, when the inner extrusion rod rotates to be aligned with the plug, namely the magnet is closest to the plug, the magnet adsorbs the plug to open the plug. When the plugs and the magnets are staggered along the circumferential direction of the base ring, the adsorption force of the magnets to the plugs is reduced, and the plugs close the dust discharge holes again under the action of plug closing springs. The dust collected during the dust removal of the base ring is automatically discharged when the cleaning cloth layer is cleaned.

Preferably, an inner hole is arranged in the outer rotating shaft of the cleaning mechanism part, an inner rotating shaft of the cleaning mechanism part is arranged in the inner hole in a penetrating way, the inner rotating shaft of the cleaning mechanism part is connected with the inner rotating shaft driving motor, the outer rotating shaft of the cleaning mechanism part is eccentrically arranged with the inner rotating shaft of the cleaning mechanism part, the outer rotating shaft of the cleaning mechanism part is provided with a plurality of guide pipes which are distributed along the circumferential direction of the outer rotating shaft of the cleaning mechanism part and extend radially and penetrate through the inner hole, an extrusion rod connecting rod and an extrusion rod connecting rod inward moving spring for driving the extrusion rod connecting rod to move towards the inner hole are arranged in the guide pipe in a penetrating way, the inner end of the extrusion rod connecting rod is aligned with the circumferential surface of the inner rotating shaft of the cleaning mechanism part, the inner extrusion rod and the outer extrusion rod are connected to the outer end of the extrusion rod connecting rod, and the rotating angular speeds of the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part are unequal; when the extrusion rod connecting rod is positioned at the position where the gap between the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part is minimum, the inner end of the extrusion rod connecting rod is abutted against the peripheral surface of the inner rotating shaft of the cleaning mechanism part, the inner extrusion rod is pressed on the inner wiping cloth layer, and the outer extrusion rod and the outer wiping cloth layer are spaced; when the extrusion rod connecting rod is positioned at the maximum clearance between the outer rotating shaft of the cleaning mechanism part and the inner rotating shaft of the cleaning mechanism part, the inner end of the extrusion rod connecting rod is spaced from the inner rotating shaft of the cleaning mechanism part, the inner extrusion rod is spaced from the inner wiping cloth layer, and the outer extrusion rod presses the outer wiping cloth layer. This technical scheme makes inside and outside extrusion pole not only can follow base ring circumference and remove, can strike the rag layer moreover to improve the clean effect to the rag layer.

Preferably, two ends of the inner hole are sealed to form a rotating shaft part sealing cavity, only one end of a rotating shaft in the cleaning mechanism part is located in the rotating shaft part sealing cavity, the outer rotating shaft rotating structure is located outside the rotating shaft part sealing cavity, the rotating shaft part sealing cavity is connected with the air suction pump, the extrusion rod connecting rod is connected in the guide pipe in a sealing and sliding mode, and the guide sleeve is provided with a dust suction channel, wherein the inlet end of the dust suction channel faces towards the inner rubberizing layer and is communicated with the rotating shaft part sealing cavity. During the use, this raise dust that will strike the rag through bleeding adsorbs away to on the rag layer in can avoiding the raise dust to drop again, improved the effect when removing dust to the rag layer.

Preferably, the guide tube is spaced from the inner wipe layer. Prevent the rag layer from blocking the dust suction channel.

Preferably, one end of the inner hole is sealed by a rubber plate, the rotating shaft in the cleaning mechanism part penetrates through the rubber plate to enter the rotating shaft part sealing cavity, and the rubber plate is connected with the rotating shaft in the cleaning mechanism part in a sealing mode. The sealing connection between the inner and outer rotating shafts which rotate eccentrically can be conveniently realized.

Preferably, the outer rotating shaft rotating structure comprises an outer rotating shaft gear ring coaxially arranged on the outer rotating shaft of the cleaning mechanism part, a driving gear meshed with the outer rotating shaft gear ring, and an outer rotating shaft driving motor for driving the driving gear to rotate.

Preferably, the inner extrusion rod is connected with the outer rotating shaft of the cleaning mechanism part through an extrusion rod connecting rod, and the outer extrusion rod is connected with the extrusion rod connecting rod through an intermediate connecting rod. The structure is compact and good.

The technical scheme has the following advantages: the dust collector can automatically remove dust on the heat absorption end of the heat pipe and the reflector; the cleaning effect is good because the cleaning is one-way wiping; can carry out self-cleaning to the rag layer of clean mechanism.

Drawings

Fig. 1 is a schematic view of a cleaning mechanism of a solar heat pipe heating apparatus according to the present invention;

FIG. 2 is a schematic view of the heat absorption end of the heat pipe of the heat storage tank projected along the direction B of FIG. 3 when the heat absorption end is cleaned;

FIG. 3 is an enlarged partial schematic view of FIG. 2;

figure 4 is a schematic representation of the base ring as it is being cleaned viewed in a direction opposite to direction B of figure 1 and in cross-section;

FIG. 5 is an enlarged partial schematic view at C of FIG. 4;

fig. 6 is a partially enlarged schematic view of fig. 1 at D.

In the figure: the heat storage box 71, the reflector 72, the heat release end 73 of the heat pipe of the heat storage box part, the base ring 81, the base ring lifting cylinder 82, the connecting strip 83, the connecting foot 84, the inner wiping layer 85, the outer wiping layer 86, the base ring storage space 87, the dust collecting groove 88, the plug sealing spring 89, the dust discharge hole 90, the plug 91, the vertical guide chute 92, the part 93 of the upper end surface of the plug outside the chute, the driving unit 94, the base 95, the connecting block 96, the guide rod 97, the screw rod 98, the screw rod driving motor 99, the bottom frame 100, the side support block 101, the cleaning mechanism part outer shaft 121, the inner shaft driving motor 102, the inner extrusion rod 103, the outer extrusion rod 104, the magnet 105, the cleaning mechanism part inner rotating shaft 106, the outer rotating shaft part outer gear ring 107, the driving gear 108, the outer rotating shaft driving motor 109, the guide pipe 110, the extrusion rod connecting rod 111, the extrusion rod connecting rod inner transfer spring 112, the middle connecting rod 113, the minimum clearance 114 between the cleaning mechanism part, A maximum clearance 115 between the cleaning mechanism part outer rotating shaft and the cleaning mechanism part inner rotating shaft, a rotating shaft part sealing cavity 116, a suction pump 117, an inlet end 118, a dust suction channel 119 and a rubber plate 120.

Detailed Description

The technical solution of the present invention is described in detail and fully with reference to the accompanying drawings.