WO2012174764A1

WO2012174764A1 - Waste heat recovery, storage and circulation device for injection molding machine

Info

Publication number: WO2012174764A1
Application number: PCT/CN2011/077451
Authority: WO
Inventors: 吴焕雄
Original assignee: Wu Huanxiong
Priority date: 2011-06-24
Filing date: 2011-07-21
Publication date: 2012-12-27
Also published as: CN202114890U

Abstract

A waste heat recovery, storage and circulation device for an injection molding machine, comprising a hot air circulation, dehumidification and dust filtration device (2), a circulative air blower (3), and a waste heat recovery and storage device (4); the hot air circulation, dehumidification and dust filtration device (2) is provided with an air intake pipe (21), a first air outlet pipe (22), and a second air outlet pipe (23); and the hot air circulation, dehumidification and dust filtration device (2) comprises a first dehumidification and dust filtration chamber (24) and a second dehumidification and dust filtration chamber (25). Hot air discharged from the air outlet of a heat preservation drying drum (6) passes through the first dehumidification and dust filtration chamber (24), and enters the circulative air blower (3); outside air entering the second dehumidification and dust filtration chamber (25) from an air intake passes through the waste heat recovery and storage device (4), and enters the circulative air blower (3); and after passing through the circulative air blower (3) and being mixed, the two air flows are finally led to the air intake of the heat preservation drying drum (6). The present invention can effectively utilize the waste heat radiated by a heater, save energy and improve the working environment in workplaces such as workshops, etc.

Description

Injection molding machine waste heat collecting and storing heat cycle device

The utility model relates to the technical field of heat source recycling and utilization device, in particular to a heat storage and storage heat storage cycle device of an injection molding machine. The present application is based on a Chinese Utility Model Patent Application No. 201120217376.X, filed on Jun. 24, 2011, the content of which is hereby incorporated by reference. Background technique

With the continuous advancement of science and technology, many metal products have gradually been replaced by plastic products in people's daily life and industrial production. Existing plastic products are generally prepared by injection molding, compression molding, extrusion molding, etc. Among them, injection molding is the most widely used. In the process of injection molding using an injection molding machine, the heater disposed on the melter of the injection molding machine heats the plastic to be molded in the melt cylinder, and during this process, a considerable amount of heat is dissipated through the heater to The outside world (for example, the workshop); for the workshops that carry out industrial production and processing, the heat generated by the heater causes the working environment temperature to rise and the operating conditions to deteriorate, and on the other hand, the energy is extremely wasted, and further Increase the financial burden of the company.

In addition, in the actual plastic processing process, the moisture absorbed by the plastic-like plastics before storage and processing will seriously affect the final molding quality of plastic products, such as nylon, ABS, polycarbonate and other water-absorbing plastics; For plastics with low water absorption or non-absorbency, moisture contamination of the plastic surface (water accumulation on the surface of the plastic particles) also adversely affects the quality of the plastic product; therefore, in response to the above, the plastic is injection molded. Appropriate dehumidification and drying treatment should be carried out before processing to ensure better molding results. The existing injection molding machine molding system is generally equipped with a dryer for dehumidifying and drying plastic. The existing dryer generally provides a heat source by means of electric heating, and the heated hot air enters the insulated drying drum from the air inlet and is insulated and dried. The plastic inside is dehumidified and dried; the air discharged from the air outlet of the insulated drying drum is also carried with a certain amount of heat. If this part of the heat is directly discharged into the workshop, the dust in the air of the workshop will be increased. The content affects the health of the workers and, on the other hand, increases energy consumption and increases the financial burden on the business. Utility model content The purpose of the utility model is to provide a waste heat collection and heat storage cycle device of an injection molding machine, which can effectively utilize the heater of the injection molding machine when the heater is working. The heat is dehumidified and dried by the plastic in the drying drum, which is energy-saving and environmentally friendly and can effectively improve the working environment of the workplace such as the workshop.

In order to achieve the above object, the present invention is achieved by the following technical solutions.

The utility model relates to a waste heat collection and heat storage cycle device of an injection molding machine, which comprises a waste heat collection and storage heat circulation system for collecting heat generated by a heater of a melter of an injection molding machine, and the waste heat collection and storage heat circulation system comprises a hot air circulation dehumidification dust filter device. The circulating conveying fan and the waste heat collecting and storing device disposed outside the heater, the hot air circulation dehumidifying and filtering device is provided with an air inlet pipe, a first air outlet pipe and a second air outlet pipe, and the air pipe is connected to the air pipe. Connected to the air outlet of the insulated drying drum, the first outlet duct is connected to the air inlet of the waste heat collecting heat storage device through the conveying pipeline, the air outlet of the waste heat collecting heat storage device and the second connecting air duct respectively pass through the conveying pipeline and the circulation The air inlet of the conveying fan is connected, and the air outlet of the circulating conveying fan is connected to the air inlet of the heat preservation drying barrel through the conveying pipeline; the hot air circulation dehumidifying dust filtering device comprises a first dehumidifying filter room and a second dehumidifying filter room, and the first dehumidifying filter room respectively Connected to the access duct and the second outlet duct, and the second dehumidification filter chamber is connected to the first outlet duct, Dehumidifying the outer peripheral wall of the dust chamber defines a lumen in communication with the second dehumidifying hot-air circulating dust chamber dust inlet hole dehumidifying apparatus outside.

Wherein, the waste heat collecting and storing heat circulation system is provided with an intelligent control system, and the intelligent control system comprises a temperature adjusting module and a temperature collecting module for monitoring the internal temperature of the insulated drying drum, and the temperature collecting module and the temperature adjusting module are electrically connection.

The heat source regulating device is connected between the air inlets corresponding to the waste heat collecting and heat storage device and the two air conveying pipes, and the temperature adjusting module is electrically connected to the heat source regulating device.

Wherein, the heat source regulating device is a regulating valve having two states of opening and closing, the air inlet of the regulating valve is connected with the conveying pipe connecting the air inlet of the waste heat collecting heat storage device, and the air outlet of the regulating valve and the connection waste heat collecting The conveying pipe connection of the air outlet of the heat storage device.

a heat source adjusting fan is disposed between the first outlet duct and the air inlet of the waste heat collecting heat storage device or between the air outlet of the waste heat collecting heat storage device and the circulating conveying fan, wherein the temperature is The adjustment module is electrically connected to the heat source adjustment fan.

Wherein, the first dehumidification filter chamber and the second dehumidification filter chamber are respectively provided with a filter core, the filter core of the first dehumidification filter chamber is fixed to the inlet side of the second outlet duct, and the second dehumidification filter Room The filter element is fixed to the inlet side of the first outlet air duct, and the access air duct is provided with a drainage hole connecting the inner cavity of the air duct and the outside of the hot air circulation dehumidification dust filter device, and the drainage hole is located at the access The lower end of the duct.

Wherein, the auxiliary air heating device is installed on the air inlet side of the heat preservation drying barrel, and the auxiliary heating device is disposed on the outer peripheral wall of the conveying pipe connecting the air outlet of the circulating conveying fan and the air inlet of the heat insulating drying barrel, the auxiliary heating device and The temperature adjustment module is electrically connected.

Wherein, the air inlet hole is close to the auxiliary heating device.

Wherein, the waste heat collecting and heat storage device comprises an upper cover and a lower cover connected to each other, and the upper cover comprises a metal isolation layer, a heat collecting layer, an upper heat insulating layer and an upper metal protective layer which are sequentially stacked from the inside to the outside, The cover includes a lower insulation layer and a lower metal protection layer which are laminated in this order from the inside to the outside.

The heat collecting layer includes a heat storage layer and an outer heat collecting pipe layer which are sequentially stacked from the inside to the outside, and an inner heat collecting pipe layer is embedded in the heat storage layer, and the outer heat collecting pipe layer is installed outside. a heat collecting pipe, the inner heat collecting pipe layer is provided with an inner heat collecting pipe, and the outer heat collecting pipe is connected with the inner heat collecting pipe, and the outer heat collecting pipe is outwardly extended to have an air inlet connected to the first connecting air pipe The joint, the inner heat collecting pipe extends outwardly and has an air outlet joint connected to the air inlet of the circulating conveying fan.

The utility model has the beneficial effects that the waste heat collecting and heat storage circulating device of the injection molding machine of the present invention comprises a waste heat collecting and storing heat circulating system, and the waste heat collecting and storing heat circulating system comprises a hot air circulating dehumidifying dust filter device and a circulating conveying fan. And a waste heat collecting and storage device disposed on the outside of the heater, the hot air circulation dehumidification dust filter device is provided with an air inlet pipe, a first air outlet pipe and a second air outlet pipe, and the air pipe is connected to the heat preservation drying barrel through the conveying pipe The air outlet is connected, the first outlet air duct is connected to the air inlet of the waste heat collecting heat storage device through the conveying pipeline, the air outlet of the waste heat collecting heat storage device and the second air outlet pipe are respectively passed through the conveying pipeline and the circulating conveying fan. The tuyere is connected, and the air outlet of the circulating conveying fan is connected to the air inlet of the heat preservation drying barrel through the conveying pipeline; the hot air circulation dehumidifying and filtering device comprises a first dehumidifying filter room and a second dehumidifying filter room, and the first dehumidifying filter room is respectively connected to the wind. The tube and the second outlet duct are connected, the second dehumidification filter chamber is connected to the first outlet duct, and the second dehumidification filter chamber is outside Wall defines a lumen in communication with the second dehumidification hot air circulating dust chamber dust inlet hole dehumidifying apparatus outside. In the working process of the utility model, the hot air discharged from the air outlet of the heat preservation drying drum passes through the first dehumidification filter room of the hot air circulation dehumidification dust filter device and enters the circulation conveying fan, and enters the outside air from the air inlet hole to the second dehumidification filter room. After the waste heat collecting heat storage device enters the circulating conveying fan, wherein the residual heat collecting heat storage device passes through the heater of the melting furnace of the injection molding machine The heat dissipated during operation heats the air entering the interior; the above two air streams are collectively passed through a circulating conveying fan and mixed together and then introduced into the air inlet of the insulated drying drum. According to the above situation, the utility model can effectively utilize the heat dissipated during the operation of the heater of the injection molding machine, and can have a positive effect on saving energy and improving the working environment in a workplace such as a workshop.

DRAWINGS

The present invention will be further described with reference to the drawings, but the embodiments of the drawings do not constitute any limitation of the present invention.

1 is a schematic structural view of an embodiment of the present invention;

2 is a schematic structural view of another embodiment of the present invention;

3 is a schematic structural view of still another embodiment of the present invention;

4 is a schematic structural view of still another embodiment of the present invention;

Figure 5 is a schematic structural view of the hot air circulation dehumidification dust filter device of the present invention;

FIG. 6 is an exploded perspective view of the waste heat collecting and heat storage device of the present invention.

Included in Figures 1 through 6 are:

1--Residual heat collection and heat storage cycle system Hot air circulation dehumidification filter unit

21- an access duct 211 - 22 - the first outlet duct

23- -Second outlet duct 24- - First dehumidification filter chamber

25- -Second dehumidification filter chamber 251——Air inlet hole 26——Filter core

3- - circulating conveying fan 4 - waste heat collecting heat storage 41 - upper cover

411-a metal isolation layer 412 - heat collecting layer 412a - heat storage layer

412b outer heat collecting pipe layer 412c - inner heat collecting pipe layer

413- - Upper insulation layer 414- Upper metal protection layer 415 - Into the wind

416- - outlet connector 42- lower cover 421 - lower insulation

422——Lower metal protective layer 5--Conveying pipe 6——Insulation drying barrel

7——Intelligent control system 8--heat source control device 9——heat source adjustment fan

100——Auxiliary heating device

detailed description The present invention will be further described below in conjunction with specific embodiments.

Embodiment 1 As shown in FIG. 1 and FIG. 5, the waste heat collecting and heat storage cycle device of the injection molding machine of the first embodiment includes waste heat collecting and heat storage for dissipating heat generated during operation of the heater for collecting the melter of the injection molding machine. The circulation system 1, the residual heat collection and storage heat circulation system 1 includes a hot air circulation dehumidification dust filter device 2, a circulation conveyor fan 3, and a waste heat collection and storage device 4 disposed outside the heater, and the hot air circulation dehumidification filter device 2 is provided with an access duct 21, the first outlet duct 22 and the second outlet duct 23, the access duct 21 is connected to the air outlet of the heat preservation drying barrel 6 through the conveying duct 5, and the first outlet duct 22 passes through the conveying duct 5 and the residual heat The air inlet of the heat storage device 4 is connected, and the air outlet of the waste heat collecting heat storage device 4 and the second air outlet pipe 23 are respectively connected to the air inlet of the circulating conveying fan 3 through the conveying pipe 5, and the air outlet of the circulating conveying fan 3 passes through The conveying pipe 5 is connected to the air inlet of the heat preservation drying drum 6; the hot air circulation dehumidifying dust filter device 2 includes a first dehumidifying filter room 24 and a second dehumidifying filter room 25, the first dehumidification The dust chamber 24 is in communication with the inlet duct 21 and the second outlet duct 23, the second dehumidifying filter chamber 25 is in communication with the first outlet duct 22, and the outer peripheral wall of the second dehumidifying filter chamber 25 is open for communication. The inner cavity of the dehumidification filter chamber 25 and the outside air inlet hole 251 of the hot air circulation dehumidification filter device 2 are disposed.

During the operation of the first embodiment, the hot air carrying a certain amount of moisture and dust is discharged from the air outlet of the heat preservation drying drum 6 and enters the first dehumidification filter chamber 24 of the hot air circulation dehumidification filter device 2 through the inlet air duct 21. The hot air entering the first dehumidification filter chamber 24 enters the air inlet of the circulation conveyor fan 3 through the second outlet duct 23; under the driving action of the circulation conveyor fan 3, the outside air of the second dehumidification filter chamber 25 passes. The air inlet hole 251 enters the inner cavity of the second dehumidification filter chamber 25, and the outside air that has entered the second dehumidification filter chamber 25 enters the waste heat collection and storage device 4 through the first outlet air duct 22, and the waste heat collection heat storage device 4 heating the air entering the interior by using the heat dissipated during operation of the heater of the injection molding machine, and finally transferring the heated air to the circulating conveying fan 3 through the conveying pipe 5; from the second outlet duct 23 And the two air streams sent from the air outlet of the waste heat collecting heat storage device 4 are jointly entered into the circulating conveying fan 3 and mixed together; the circulating conveying fan 3 operates and finally The mixed air is introduced into the air inlet of the insulated drying drum 6.

In view of the above, the waste heat collecting and heat storage cycle device of the first embodiment of the present invention can effectively utilize the heat generated by the heater of the injection molding machine, and at the same time, can save energy and improve workplaces such as workshops. working environment.

Embodiment 2 As shown in FIG. 3 and FIG. 4, the difference between Embodiment 2 and Embodiment 1 is: The heat collecting and storing heat circulation system 1 is provided with an intelligent control system 7 , and the intelligent control system includes a temperature adjusting module and a temperature collecting module for monitoring the internal temperature of the heat insulating drying drum 6 , and the temperature collecting module is electrically connected with the temperature adjusting module; Further, a heat source regulating device 8 is connected between the air inlets corresponding to the waste heat collecting and heat storage device 4 and the two air conveying pipes 5, and the temperature adjusting module is electrically connected to the heat source regulating device 8. In the working process of the waste heat collecting and heat storage circulating device of the injection molding machine of the second embodiment, the intelligent control system 7 can detect the temperature in the heat insulating drying drum 6 and adjust the opening and closing state of the heat source regulating device 8 to adjust to enter the heat recovery and heat storage. The amount of air in the unit 4, in turn, regulates the temperature of the air that is passed to the air inlet of the insulated drying drum 6 and ultimately causes the temperature in the insulated drying drum 6 to match the temperature set by the actual work.

The working process of the intelligent control system 7 is described in detail below in conjunction with the specific structure of the intelligent control system 7: the temperature collecting module is used to collect the temperature signal in the insulated drying drum 6 and transmit the temperature signal to the temperature adjusting module, and the temperature adjusting module Comparing the actual temperature in the insulated drying drum 6 with the set temperature and feeding back the result to the heat source regulating device 8 and finally driving the heat source regulating device 8; when the actual temperature in the insulated drying drum 6 is higher than the set temperature When low, the temperature adjustment module sends an electrical signal to the heat source control device 8 and causes the heat source control device 8 to be turned off. At this time, all the air that has passed through the first outlet duct 22 is passed to the waste heat collection and storage device 4, and is circulated and transported. Under the driving action of the fan 3, the air entering the air inlet of the heat preservation drying drum 6 and heated by the waste heat collecting heat storage device 4 is increased, and the temperature in the heat insulating drying drum 6 is increased; When the temperature in 6 is higher than the set temperature, the temperature adjustment module sends an electrical signal to the heat source control device 8 and regulates the heat source. The device 8 is turned on. At this time, part of the air sent to the first take-off duct 22 is passed to the waste heat collecting heat storage device 4 and enters the circulating conveying fan 3, and the other portion is introduced to the circulating conveying fan 3 via the heat source regulating device 8. Through the above operation, the air having a higher temperature after being introduced into the air inlet of the heat insulating drying drum 6 and heated by the heat recovery collecting heat storage device 4 is reduced, and the temperature inside the heat insulating drying drum 6 is lowered. In addition, the temperature acquisition module can be equipped with a temperature sensor, and the temperature sensor is installed in the heat preservation drying barrel 6, and the temperature sensor transmits the collected temperature signal to the temperature adjustment module.

Further, the heat source regulating device 8 is a regulating valve having two states of opening and closing. The air inlet of the regulating valve is connected with the conveying pipe 5 connected to the air inlet of the waste heat collecting heat storage device 4, and the air outlet of the regulating valve and the connection residual heat The conveying pipe 5 for collecting the air outlet of the heat storage device 4 is connected. The above regulating valve may be an electromagnetic regulating valve or a pneumatic regulating valve; taking an electromagnetic regulating valve as an example, the electromagnetic regulating valve includes a control valve The relay of the core action is electrically connected with the temperature adjustment module of the intelligent control system 7. When the actual temperature in the heat preservation drying drum 6 is lower than the set temperature, the relay does not operate, and the valve core is in a closed state; When the actual temperature in 6 is higher than the set temperature, the relay acts and causes the spool to be open.

Embodiment 3, as shown in FIG. 2 and FIG. 4, the difference between the third embodiment and the second embodiment is as follows: between the first outlet duct 22 and the air inlet of the waste heat collecting heat storage device 4 or the waste heat collecting heat storage device A heat source adjusting fan 9 is disposed between the air outlet of the air outlet 4 and the circulating conveying fan 3, and the temperature adjusting module is electrically connected to the heat source adjusting fan 9. The outside air entering the second dehumidification filter is sent to the heat source adjustment fan 9 through the first outlet duct 22, and the heat source adjustment fan 9 supplies power and causes the amount of air entering the waste heat collection heat storage device 4 to increase; the waste heat collection heat storage device 4heating the air entering the interior by using the heat emitted by the heater of the melter of the injection molding machine; wherein the temperature adjustment module of the intelligent control system 7 adjusts the heat output by adjusting the output air volume of the heat source adjusting fan 9 The temperature in the barrel 6 further matches the temperature in the insulated drying drum 6 to the set temperature.

The heat source adjusting fan 9 adjusts the temperature in the heat insulating drying drum 6 as follows: when the actual temperature in the heat insulating drying drum 6 is lower than the set temperature, the temperature adjusting module sends an electric signal to the heat source adjusting fan 9 and improves the heat source adjustment. The rotation speed of the fan 9 further increases the output air volume, and under the driving action of the heat source adjustment fan 9, the temperature of the air having a higher temperature after entering the heat preservation drying drum 6 and being heated by the waste heat collecting heat storage device 4 is increased, and the heat drying drying barrel 6 is inside. When the temperature in the insulated drying drum 6 is higher than the set temperature, the temperature adjusting module sends an electric signal to the heat source adjusting fan 9 and reduces the rotating speed of the heat source adjusting fan 9 to reduce the output air volume, so that the heat is dried. After the barrel 6 is heated by the waste heat collecting heat storage device 4, the temperature of the air is lowered, and the temperature in the heat insulating drying drum 6 is lowered; further explanation is given, when the temperature in the heat insulating drying drum 6 is too high, the temperature adjusting module It is also possible to control the heat source adjustment fan 9 to stop rotating.

Embodiment 4, as shown in FIG. 1 to FIG. 5, the difference between the fourth embodiment and the first embodiment is that: the first dehumidification filter chamber 24 and the second dehumidification filter chamber 25 are respectively provided with a filter core 26, and the first dehumidification filter dust The filter core 26 of the chamber 24 is fixed to the inlet side of the second outlet duct 23, and the filter core 26 of the second dehumidification filter chamber 25 is fixed to the inlet side of the first outlet duct 22, and the inlet duct 21 is open for communication. The inner cavity of the air duct 21 and the outer drain hole 211 of the hot air circulation dehumidification filter device 2 are located, and the drain hole 211 is located at the lower end portion of the inlet duct 21.

In the working process of the fourth embodiment, the hot air carrying a certain amount of moisture and dust is kept from the heat preservation. The air outlet of the drying tub 6 is discharged and enters the first dehumidifying dust filter chamber 24 through the air duct 21. Since the temperature inside the first dehumidifying filter chamber 24 is low, the moisture carried by the hot air entering the air condenses into water droplets and passes through. The drainage hole 211 flows out; in addition, the filter core 26 is mainly used for filtering the air entering the first outlet duct 22 and the second outlet duct 23 and removing the dust carried by the air, thereby ensuring the passage to the heat preservation and drying. The air cleanliness of the tub 6.

Embodiment 5, as shown in FIG. 1 to FIG. 4, the difference between the fifth embodiment and the second embodiment is that: the auxiliary air heating device 100 is installed on the air inlet side of the heat preservation drying drum 6, and the auxiliary heating device 100 is set in the connection cycle. The auxiliary air outlet of the fan 3 and the outer peripheral wall of the air inlet 5 of the heat insulating drying tub 6 are electrically connected to the temperature adjusting module. In the working process of the fifth embodiment, when the waste heat collecting heat storage device 4 cannot provide sufficient heat or the plastic particles in the heat insulating drying drum 6 are pre-dried before the injection molding, the fifth embodiment can pass The auxiliary heating device 100 heats the air entering the insulated drying drum 6 and satisfies the requirements of dry plastic pellets. Further, in order to effectively utilize the heat radiated to the outside by the auxiliary heating device 100 during the heating process, the air inlet hole 251 located in the outer peripheral wall of the second dehumidification filter chamber 25 is further brought close to the auxiliary heating device 100. In addition, in the fifth embodiment, a baffle may be disposed on the side of the air inlet hole 251 and the air entering the air inlet hole 251 is guided by the baffle, so that the heat radiated from the auxiliary heating device 100 to the outside is passed as much as possible. The air hole 251 enters into the second dehumidification filter chamber 25.

Embodiment 6 As shown in FIG. 6, the difference between Embodiment 6 and Embodiment 1 is: The waste heat collecting heat storage device 4 includes an upper cover 41 and a lower cover 42 connected to each other, and the upper cover 41 includes from the inside to the outside. The metal isolation layer 411, the heat collecting layer 412, the upper heat insulating layer 413, and the upper metal protective layer 414 are sequentially stacked, and the lower cover 42 includes a lower heat insulating layer 421 and a lower metal protective layer 422 which are sequentially stacked from the inside to the outside; The heat collecting layer 412 includes a heat storage layer 412a and an outer heat collecting pipe layer 412b which are stacked in this order from the inside to the outside. The heat collecting layer 412a is internally embedded with an inner heat collecting pipe layer 412c and an outer heat collecting pipe layer 412b. An outer heat collecting pipe is disposed, and the inner heat collecting pipe layer 412c is provided with an inner heat collecting pipe, and the outer heat collecting pipe is connected with the inner heat collecting pipe, and the outer heat collecting pipe is outwardly extended with the first air outlet pipe 22 The air inlet joint 415 is connected, and the inner heat collecting duct is outwardly extended with an air outlet joint 416 connected to the air inlet of the circulating conveying fan 3. During the process of installing the waste heat collecting heat storage device 4 on the outer side of the heater of the injection molding machine, the metal isolation layer 411 and the lower thermal insulation layer 421 are respectively in contact with the outer peripheral wall of the heater of the injection molding machine, wherein the upper cover 41 The lower cover 42 can be connected together by a snap-fit manner that can be easily removed. During the operation of the waste heat collecting heat storage device 4, the upper heat insulating layer 413 and the lower heat insulating layer 421 are mainly used for enclosing the heat radiated by the heater of the injection molding machine melted cylinder in the waste heat collecting heat storage device 4 and avoiding heat from waste heat. The inside of the collection heat storage device 4 is dissipated, thereby increasing the heat collection efficiency of the waste heat collection heat storage device 4. The heat collecting layer 412 is mainly used for absorbing heat and heat-treating the air entering the waste heat collecting heat storage device 4; the upper metal protective layer 414 and the lower metal protective layer 422 are respectively corresponding to the upper cover 41 and the lower cover 42 The outer casing acts as an outer layer. When the waste heat collecting device 4 is used to heat the air delivered by the first outlet duct 22, the air to be heated enters from the air inlet joint 415 to the outer heat collecting duct, and the air heated by the outer heat collecting duct re-enters The inner heat collecting pipe is finally sent to the circulating conveying fan 3 via the air outlet joint 416. It should be further explained that the air inlet of the waste heat collecting heat storage device 4 is disposed in the air inlet joint 415, and the waste heat collecting heat storage device 4 is The air outlet is disposed in the air outlet joint 416. In the fifth embodiment, the waste heat collecting heat storage device 4 is designed as a double-layer heating structure, wherein the outer heat collecting pipe layer 412b is mainly used to utilize the heat between the upper heat insulating layer 413 and the heat storage layer 412a, and the inner heat collecting pipe. The layer 412c is mainly used to utilize the heat inside the heat storage layer 412a; it should be further explained that the heat storage layer 412a is mainly used for storing the heat emitted by the heater of the injection molding machine, thereby preventing the heat from being excessively distributed to the outside. And improve the waste heat collection efficiency of the waste heat collection heat storage device 4.

The above content is only a preferred embodiment of the present invention, and those skilled in the art will have any changes in the specific embodiments and application scope according to the idea of the present invention. The contents of this specification should not be construed as Limitations on the present invention.

Industrial applicability

During the working process of the utility model, the hot air discharged from the air outlet of the heat preservation drying drum passes through the first dehumidification filter room of the hot air circulation dehumidification dust filter device and enters the circulation conveying fan, and the outside air entering the second dehumidification filter room from the air inlet hole passes through The residual heat collecting heat storage device enters the circulating conveying fan, wherein the residual heat collecting and storing device heats the air entering the interior by using the heat emitted by the heater of the injection molding machine, and the two air streams are common After circulating the fan and mixing, it is connected to the air inlet of the insulated drying drum. The utility model can effectively utilize the heat dissipated during the working of the heater of the injection molding machine, and can have a positive effect on saving energy and improving the working environment of the workplace such as the workshop. The utility model can be mass-produced and has a good market prospect.

Claims

Claim

1. A waste heat collection and heat storage cycle device for an injection molding machine, comprising a waste heat collection and storage heat circulation system (1) for collecting heat generated during operation of a heater of a melter of an injection molding machine, characterized in that: waste heat collecting and storing heat The circulation system (1) comprises a hot air circulation dehumidification dust filter device (2), a circulation conveying fan (3), and a waste heat collection heat storage device (4) disposed outside the heater, and the hot air circulation dehumidification dust filter device (2) is provided with a connection The air inlet pipe (21), the first outlet air duct (22) and the second outlet air duct (23) are connected to the air duct (21) through the conveying duct (5) and the air outlet of the heat insulating drying drum (6) Connected, the first outlet duct (22) is connected to the air inlet of the residual heat storage heat accumulator (4) through the conveying pipe (5), the air outlet of the residual heat collecting heat storage device (4) and the second outlet air duct (23) respectively connected to the air inlet of the circulating conveying fan (3) through the conveying pipe (5), and the air outlet of the circulating conveying fan (3) is connected to the air inlet of the heat insulating drying barrel (6) through the conveying pipe (5);

The hot air circulation dehumidification filter device (2) comprises a first dehumidification filter chamber (24) and a second dehumidification filter chamber (25), and the first dehumidification filter chamber (24) is respectively connected to the access duct (21) and the second outlet The air duct (23) is connected, the second dehumidification filter chamber (25) is in communication with the first outlet duct (22), and the outer peripheral wall of the second dehumidification filter chamber (25) is connected to the second dehumidification filter chamber (25). The inner cavity and the hot air circulate the outside air inlet hole (251) of the dehumidification filter device (2).

2. The waste heat collecting and heat storage cycle device of an injection molding machine according to claim 1, wherein: the waste heat collecting and storing heat circulating system (1) is provided with an intelligent control system (7), and an intelligent control system (7) The temperature collecting module includes a temperature adjusting module and a temperature collecting module for monitoring the internal temperature of the insulated drying drum (6), and the temperature collecting module is electrically connected to the temperature adjusting module.

3. The waste heat collecting and heat storage cycle device of an injection molding machine according to claim 2, wherein: the air inlets corresponding to the waste heat collecting and storing device (4) and the two conveying pipes of the air outlet are respectively connected (5) A heat source regulating device (8) is connected between the two, and the temperature adjusting module is electrically connected to the heat source regulating device (8).

4. The waste heat collecting and heat storage cycle device of an injection molding machine according to claim 3, wherein: said heat source regulating device (8) is a regulating valve having two states of opening and closing, and an air inlet of the regulating valve is The conveying pipe (5) connected to the air inlet of the waste heat collecting heat storage device (4) is connected, and the air outlet of the regulating valve is connected with the conveying pipe (5) connected to the air outlet of the waste heat collecting heat storage device (4).

The waste heat collecting and storing heat storage cycle device of the injection molding machine according to claim 2, wherein: the first outlet air duct (22) and the air inlet of the waste heat collecting heat storage device (4) a heat source adjusting fan (9) is disposed between the air outlet of the residual heat collecting heat storage device (4) and the circulating conveying fan (3), The temperature adjustment module is electrically connected to the heat source adjustment fan (9).

The waste heat collection and heat storage cycle device of an injection molding machine according to any one of claims 1 to 5, characterized in that: the first dehumidification filter chamber (24) and the second dehumidification filter chamber (25) a filter core (26) is respectively installed, a filter core (26) of the first dehumidification filter chamber (24) is fixed to the inlet side of the second outlet duct (23), and a second dehumidification filter chamber (25) The filter core (26) is fixed to the inlet side of the first outlet duct (22), and the inlet duct (21) is provided with a lumen communicating with the inlet duct (21) and the hot air circulating dehumidification The external drain hole (211) and the drain hole (211) of the dust filter device (2) are located at the lower end portion of the inlet duct (21).

The waste heat collecting and storing heat storage cycle device of the injection molding machine according to any one of claims 2 to 5, characterized in that: the auxiliary air heating device (100) is installed on the air inlet side of the heat preservation drying drum (6) The auxiliary heating device (100) is disposed on an outer peripheral wall of the conveying pipe (5) connecting the air outlet of the circulating conveying fan (3) and the air inlet of the heat insulating drying drum (6), the auxiliary heating device (100) and the The temperature adjustment module is electrically connected.

The waste heat collecting and heat storage cycle device of an injection molding machine according to claim 7, wherein the air inlet hole (251) is adjacent to the auxiliary heating device (100).

9. The waste heat collecting and heat storage cycle device of an injection molding machine according to claim 1, wherein: said waste heat collecting and storing device (4) comprises an upper cover (41) and a lower cover (42) connected to each other. The upper cover (41) includes a metal isolation layer (411), a heat collecting layer (412), an upper heat insulating layer (413), and an upper metal protective layer (414) stacked in this order from the inside to the outside, and a lower cover (42) Including the lower insulation layer stacked in order from the inside to the outside

(421) and a lower metal protective layer (422).

10 . The waste heat collecting and heat storage cycle device of an injection molding machine according to claim 9 , wherein the heat collecting layer ( 412 ) comprises a heat storage layer ( 412 a ) and a laminated layer arranged in order from the inside to the outside. a heat collecting pipe layer (412b), an inner heat collecting pipe layer (412c) is embedded in the heat storage layer (412a), and an outer heat collecting pipe layer (412b) is provided with an outer heat collecting pipe layer and an inner heat collecting pipe layer ( 412c) is provided with an inner heat collecting pipe, and the outer heat collecting pipe is connected with the inner heat collecting pipe, and the outer heat collecting pipe is outwardly extended and provided with the first air outlet pipe

(22) The connected air inlet joint (415), the inner heat collecting duct is outwardly extended with an air outlet joint (416) connected to the air inlet of the circulating conveying fan (3).