CN211425013U - Heat recovery unit is used in production of PVC tubular product - Google Patents

Abstract

The utility model relates to the technical field of PVC pipe production equipment, and discloses a heat energy recovery device for PVC pipe production. An air outlet box is installed in the middle of the upper end of the box, and a rotating shaft is installed inside the air outlet box. The lower end of the rotating shaft passes through the top of the recovery box and is connected with an energy collecting cover. An air inlet hole is arranged in the middle of the outer wall of the rotating shaft, the air inlet hole is connected with an air bleed box through an air inlet pipe, and the air bleed box is connected with an air nozzle arranged inside the recovery box through an air outlet pipe. The utility model realizes the effective centralized recovery of the heat energy inside the PVC pipe production equipment, and at the same time cooperates with the air bleed box to realize the re-energy supply of the heat energy to the PVC pipe production equipment, with strong practicability and high reliability, and the whole recovery There is only one power source for the device, and the cost of the device is further reduced.

Description

A heat energy recovery device for PVC pipe production

technical field

The utility model relates to the technical field of PVC pipe material production equipment, in particular to a heat energy recovery device for PVC pipe material production.

Background technique

As we all know, heating and drying are required in the production process of PVC pipes, and the excess heat is generally discharged directly. It has been widely used in the fields of PVC pipe production and processing and energy saving and environmental protection.

The existing energy-saving and environmentally friendly waste heat recycling device for PVC pipe production includes an oven, an exhaust fan and a heat exchange box. A drying cavity is arranged inside the oven, and a working cavity is arranged inside the heat exchange box, and is installed inside the working cavity. There is a heat exchanger, the top of the heat exchange box is provided with an exhaust pipe communicating with the heat exchanger, the input end of the exhaust fan is communicated with the oven, and the output end of the exhaust fan extends into the working chamber and communicates with the heat exchanger.

Chinese Patent (Announcement No.: CN209063364U) discloses an energy-saving and environmentally friendly waste heat recycling device for PVC color film production, including an oven and an exhaust fan. A drying cavity is arranged inside the oven, and the input end of the exhaust fan is communicated with the oven; it also includes adsorption box, support plate, screen frame, upper rotating shaft, cross support frame and lower rotating shaft, the inside of the adsorption box is provided with a working cavity, and the inner top wall and inner bottom wall of the working cavity are respectively provided with an upper installation slot and a lower The installation groove, the upper installation groove and the lower installation groove are opposite up and down, and the upper ball bearing and the lower ball bearing are fixedly installed in the upper installation groove and the lower installation groove respectively. Although the device can recover heat energy to a certain extent, but In the actual recovery device, the heat energy cannot be effectively circulated and recovered, and the heat energy cannot be recovered centrally. Therefore, further improvement is required.

Utility model content

The purpose of the present utility model is to provide a heat energy recovery device for PVC pipe production, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the utility model provides the following technical solutions:

A heat energy recovery device for PVC pipe production includes a recovery box, a filter plate is installed in the middle of the recovery box, a plurality of filter holes are evenly arranged in the middle of the filter plate, an air outlet box is installed in the middle of the upper end of the recovery box, and an air outlet box is installed in the inner part of the air outlet box. The lower end of the rotating shaft passes through the top of the recovery box and is connected with an energy collecting cover. The inside of the energy collecting cover is communicated with the cavity provided inside the rotating shaft. The middle of the outer wall of the rotating shaft inside the recovery box is provided with an air inlet hole. The air intake box is connected with the air intake pipe, and the air intake box is connected with the air nozzle arranged in the recovery box through the air outlet pipe.

As a further solution of the present utility model: the middle part of the lower end of the rotating shaft is connected with a rotating shaft through a gear set, the middle part of the rotating shaft is installed with a crank, the middle part of the crank is connected with a piston rod through a sliding sleeve, and the upper end of the piston rod is hinged and arranged inside the air bleed box. piston plate.

As a further solution of the present invention, a check valve is provided in the middle of the air inlet pipe and the air outlet pipe.

As a further solution of the present invention, the upper end of the rotating shaft is connected with a rotating motor through the top end of the air bleed box.

As a further solution of the present invention, the middle part of the inner wall of the air induction box is provided with an annular groove which cooperates with the energy collecting cover.

As a further solution of the present utility model: a filter cartridge is installed in the middle of the air outlet box located on the outside of the rotating shaft.

As a further solution of the present invention, the lower end of the energy collecting cover is evenly provided with a plurality of suction nozzles.

As a further solution of the present invention, the air inlet and the cavity are communicated with each other.

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

The heat energy recovery device for PVC pipe production has a reasonable structure and novel design. Through the mutual cooperation between the provided energy collecting cover and the air outlet box, the effective centralized recovery of the heat energy inside the PVC pipe production equipment is realized, and at the same time, it is The cooperation of the air bleed box realizes the re-supply of heat energy to the PVC pipe production equipment, with strong practicability and high reliability, and there is only one power source for the entire recovery device, which further reduces the cost of the device.

Description of drawings

Figure 1 is a schematic structural diagram of a heat energy recovery device for PVC pipe production.

Figure 2 is a schematic structural diagram of a return air box in a heat energy recovery device for PVC pipe production.

FIG. 3 is a schematic structural diagram of an energy-concentrating cover in a heat-energy recovery device for PVC pipe production.

In the picture: 1- recovery box, 2- air nozzle, 3- filter plate, 4- energy collecting cover, 5- gear set, 6- rotating shaft, 7- air outlet box, 8- rotating motor, 9- air intake pipe, 10 -Bleed air box, 11-piston plate, 12-piston rod, 13-sliding sleeve, 14-crank, 15-cavity, 16-intake hole, 17-filter cartridge, 18-suction nozzle, 19-ring groove , 20-outlet pipe, 21-rotating shaft.

Detailed ways

It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "horizontal", "upper", "lower", "front", "rear", "left", "right", The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility. The novel and simplified description does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection or indirect connection through an intermediate medium, or 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 through specific situations.

The present utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

Example 1

Referring to Figures 1 to 3, in an embodiment of the present invention, a heat energy recovery device for PVC pipe production includes a recovery box 1, a filter plate 3 is installed in the middle of the recovery box 1, and a number of filter holes are evenly arranged in the middle of the filter plate 3 , used for preliminary filtering of the gas sucked into the energy collecting cover 4, an air outlet box 7 is installed in the middle of the upper end of the recovery box 1, a rotating shaft 6 is installed inside the air outlet box 7, and a middle part of the air outlet box 7 located on the outside of the rotating shaft 6 is installed There is a filter cartridge 17, which is used to filter the air entering the air induction box 10 again to remove the particulate impurities carried in the hot air. The upper end of the rotating shaft 6 passes through the top of the air induction box 10. It is used to drive the rotating shaft 6 to rotate. The middle part of the lower end of the rotating shaft 6 is connected with the rotating shaft 21 through the gear set 5. The crank 14 is installed in the middle of the rotating shaft 21. The upper end of 12 is hinged with a piston plate 11 arranged inside the air bleed box 10, and the lower end of the rotating shaft 6 passes through the top end of the recovery box 1 and is connected with an energy collecting cover 4, and the lower end of the energy collecting cover 4 is evenly provided with a number of suction nozzles 18, It is used for centralized absorption of hot air. The interior of the energy collecting cover 4 is communicated with the cavity 15 provided inside the rotating shaft 6 to ensure the circulation of hot air. The central part of the outer wall of the rotating shaft 6 located inside the recovery box 1 is provided with an air intake hole 16 , for the entry of hot air into the air outlet box 7, the air inlet hole 16 and the cavity 15 communicate with each other, the air inlet hole 16 is connected to the air induction box 10 through the air inlet pipe 9, and the air inlet pipe 9 and the air outlet pipe 20 A one-way valve is provided in the middle to ensure one-way circulation of air. The air bleed box 10 is connected to the air nozzle 2 provided in the recovery box 1 through the air outlet pipe 20, so as to reintroduce the hot air into the recovery box 1 for operation.

Example 2

In another embodiment of the present invention, the difference between this embodiment and the above-mentioned embodiment is that an annular groove 19 which cooperates with the energy collecting cover 4 is provided in the middle of the inner wall of the air induction box 10, and is used for collecting The rotation of the energy cover 4 is limited and guided to avoid shaking of the energy collection cover 4 during the rotation process, which further increases the reliability of the entire device.

When the utility model is in operation, the rotating motor 8 is started, and the rotating motor 8 drives the rotating shaft 6 to rotate, on the one hand, the energy collecting cover 4 is rotated, and at the same time, the hot air in the recovery box 7 is introduced into the rotating shaft through the suction nozzle 18 In the cavity 15 inside, on the other hand, through the rotation of the gear set 5, the rotating shaft 21 is rotated, and then, under the action of the crank 14 and the sliding sleeve 13, the piston rod 12 drives the piston plate 11 along the bleed box 10. The inside moves up and down, so that the hot air enters the air bleed box 10, and then is ejected in the air nozzle 2 under the action of the air outlet pipe 20 to realize the reuse of heat energy. The whole process is simple, fast and convenient. The utility model has reasonable structure and novel design. Through the mutual cooperation between the energy collecting cover 4 and the air outlet box 7, the effective centralized recovery of the heat energy inside the PVC pipe production equipment is realized, and the coordination with the air induction box 10 is realized at the same time. , to realize the re-supply of heat energy to the PVC pipe production equipment, with strong practicability and high reliability, and there is only one power source for the entire recovery device, which further reduces the cost of the device.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the within the protection scope of the present invention.

Claims (8)

1. A heat energy recovery device for PVC pipe production, comprising a recovery box (1), a filter plate (3) is installed in the middle of the recovery box (1), and a number of filter holes are evenly arranged in the middle of the filter plate (3). In that, an air outlet box (7) is installed in the middle of the upper end of the recovery box (1), a rotating shaft (6) is installed inside the air outlet box (7), and the lower end of the rotating shaft (6) passes through the top of the recovery box (1) and is connected to a collector. The energy cover (4), the energy collecting cover (4) is communicated with the cavity (15) provided inside the rotating shaft (6), and the inner wall of the rotating shaft (6) inside the recovery box (1) is provided with an air inlet hole in the middle (16), the air intake hole (16) is connected with an air bleed box (10) through an air intake pipe (9), and the air bleed box (10) is connected with an air nozzle provided inside the recovery box (1) through an air outlet pipe (20). (2). 2. A heat energy recovery device for PVC pipe production according to claim 1, characterized in that, a rotating shaft (21) is connected to the middle of the lower end of the rotating shaft (6) through a gear set (5), and the rotating shaft (21) A crank (14) is installed in the middle of the crank (14), a piston rod (12) is connected to the middle of the crank (14) through a sliding sleeve (13), and the upper end of the piston rod (12) is hinged with a piston plate (11) arranged inside the air bleed box (10). ). 3 . The heat energy recovery device for PVC pipe production according to claim 1 , wherein a check valve is provided in the middle of the air inlet pipe ( 9 ) and the air outlet pipe ( 20 ). 4 . 4 . The heat energy recovery device for PVC pipe production according to claim 1 , wherein the upper end of the rotating shaft ( 6 ) is connected with a rotating motor ( 8 ) through the top end of the air bleed box ( 10 ). 5 . 5. A heat energy recovery device for PVC pipe production according to claim 1 or 4, characterized in that, an annular groove ( 19). 6 . The heat energy recovery device for PVC pipe production according to claim 4 , wherein a filter cartridge ( 17 ) is installed in the middle of the air outlet box ( 7 ) located outside the rotating shaft ( 6 ). 7 . 7 . The heat energy recovery device for PVC pipe production according to claim 1 , wherein a plurality of suction nozzles ( 18 ) are evenly arranged at the lower end of the energy collecting cover ( 4 ). 8 . 8 . The heat energy recovery device for PVC pipe production according to claim 5 , wherein the air inlet hole ( 16 ) and the cavity ( 15 ) communicate with each other. 9 .

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