CN116036741A - Tea making waste gas recycling device - Google Patents

Abstract

The invention discloses a tea making waste gas recycling device which comprises a frame, a first gas collecting device, a second gas collecting device, a heating device, a first gas recycling device and a second gas recycling device, wherein the first gas collecting device and the second gas collecting device which are mutually communicated are arranged on the frame, the first gas collecting device is used for discharging waste gas generated in a tea making process into the second gas collecting device, the heating device and the first gas recycling device are arranged in the second gas collecting device, the second gas collecting device is communicated with the second gas collecting device through the first gas recycling device, and the first gas recycling device is used for being communicated with a heating system. According to the tea making waste gas recycling device, waste gas generated by tea making is recycled for the second time, so that the problem of energy waste in the aspect of energy recycling in a tea processing technology system is solved, cost reduction and synergy can be realized for enterprises, and the purposes of energy conservation, emission reduction and energy consumption reduction are achieved.

Description

A device for recycling waste gas from tea making

technical field

The invention relates to the technical field of waste gas recovery and utilization, in particular to a tea making waste gas recovery and utilization device.

Background technique

The normal use of tea processing equipment is inseparable from the supply of energy. The energy required by tea processing equipment is mainly divided into two types: traditional fossil energy and clean energy. Among them, clean energy mainly includes electricity, liquefied petroleum gas, natural gas, microwave, and far-infrared energy. and biomass fuels. At present, under the development trend of thermal fuels tending to be clean and energy-saving, biomass pellet fuels processed from sawdust, forest branches, rice straw, and wheat straw are valued by the industry. Due to their low production costs, their It has been used more and more in tea processing.

However, in the process of tea processing and production, the overall heat utilization rate of tea processing equipment is low, and most of the heat is lost in the form of waste gas (hot air and water vapor) generated from tea making, resulting in a huge waste of energy. Energy such as gas and water vapor generated during tea processing has high recycling value. In recent years, in order to realize the development concept of "energy saving, emission reduction, and energy consumption reduction", it is an urgent problem to develop a device for recycling and secondary recycling of tea-making waste gas.

Contents of the invention

The purpose of the present invention is to provide a tea-making waste gas recovery and utilization device to solve the above-mentioned problems in the prior art, so that the waste gas generated in the tea-making process can be recycled and reused, so as to realize energy saving, emission reduction and energy consumption reduction. Purpose.

To achieve the above object, the present invention provides the following scheme:

The invention provides a tea-making waste gas recovery and utilization device, which includes a frame, a first gas collection device, a second gas collection device, a heating device, a first gas recovery device and a second gas recovery device. There are the first gas collecting device and the second gas collecting device communicated with each other, the first gas collecting device is used to discharge the waste gas generated in the tea making process into the second gas collecting device, the second gas collecting device The heating device and the first gas recovery device are arranged in the gas collection device, the second gas collection device communicates with the second gas collection device through the first gas recovery device, and the first gas recovery device The device or the second gas recovery device is used to communicate with the heating system.

Preferably, the first gas collecting device includes an exhaust fan and a motor, the motor is connected to the exhaust fan through a pulley transmission mechanism, the air inlet of the exhaust fan communicates with the waste gas source generated in the tea making process, and the outlet The tuyere is in communication with the second gas collecting device.

Preferably, the air outlet of the exhaust fan is provided with a filter net, the filter net is a photocatalyst cloth net, and the material of the photocatalyst cloth net is cotton fabric loaded with nano-titanium dioxide.

Preferably, the exhaust fan is a centrifugal fan with an output speed of 2400r/min, a flow rate of 12662-17343m3/h, a total pressure of 3100-2740Pa, and a motor power of 18.5-2kw.

Preferably, the second gas collection device is a closed box, the bottom of the second gas collection device is provided with the first gas recovery device and the condensed water recovery device, and the heating device is provided on the side wall.

Preferably, the heating device includes at least two single-tube heat exchangers, the single-tube heat exchanger includes fins and elliptical copper tubes, the fins are arranged at equal intervals, and the elliptical copper tubes spiral through the in the fins.

Preferably, the condensed water recovery device includes a filter, a regulating valve and an outlet pipe, the filter is arranged under the bottom plate of the second gas collecting device, and the filter is communicated with the outlet pipe through the regulating valve, so that The water outlet pipe is connected to the condensed water collection device.

Preferably, the first gas recovery device includes a negative pressure fan and an air pump, a bottom chamber is arranged below the second gas collecting device, and several negative pressure fans are arranged above the bottom chamber, and the air pump The air pump is arranged under the bottom plate of the bottom chamber and communicated with the bottom chamber, and the air pump communicates with the air storage tank of the second gas recovery device through an air guide pipe.

Preferably, the air pump communicates with the heat supply source of the tea-making process system through an air duct.

Preferably, the second gas recovery device includes an air storage tank and an air compressor, one end of the air compressor communicates with one side of the second gas collection device, and the other end communicates with the air storage tank through an air duct connected.

Compared with the prior art, the present invention has achieved the following technical effects:

The tea-making waste gas recovery and utilization device of the present invention solves the problem of energy waste in the energy recovery and utilization of the tea processing system by secondary recycling and reuse of the waste gas generated in tea production, and can reduce costs for enterprises Increase efficiency to achieve energy saving, emission reduction and energy consumption reduction.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the embodiments. Obviously, the accompanying drawings in the following description are only some of the present invention. Embodiments, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

Fig. 1 is the structural representation of the waste gas recycling device for tea making of the present invention;

Fig. 2 is the structural representation of the first gas collecting device among the present invention;

Fig. 3 is a schematic diagram of the internal structure of the second gas collecting device in the present invention;

Fig. 4 is the structural representation of gas recovery device among the present invention;

Fig. 5 is the structural schematic diagram II of the first gas recovery device in the present invention;

Fig. 6 is the structural representation of heating device among the present invention;

Fig. 7 is the structural representation of the condensed water recovery device in the present invention;

Among them: 1-frame; 2-first gas collection device, 20-motor, 21-exhauster fan, 22-filter; 3-second gas collection device, 30-filter, 31-regulating valve, 32-outlet pipe ;4-heating device, 41-single tube heat exchanger, 42-elliptical copper tube, 43-fin; 5-first gas recovery device, 51-negative pressure fan, 52-air duct, 53-air pump; 6 -Second gas recovery device, 61 -air storage tank, 62 -air compressor.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The purpose of the present invention is to provide a tea-making waste gas recovery and utilization device to solve the problems existing in the prior art, so that the waste gas generated in the tea-making process can be recycled and reused, so as to achieve the purpose of energy saving, emission reduction and energy consumption reduction .

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1 to 7: this embodiment provides a tea making waste gas recovery and utilization device, including a frame 1, a first gas collection device 2, a second gas collection device 3, a heating device 4, a first gas recovery device 5 and the second gas recovery device 6, the frame 1 is provided with a first gas collection device 2 and a second gas collection device 3 communicating with each other, and the first gas collection device 2 is used to exhaust the waste gas generated in the tea making process To the second gas collection device 3, the second gas collection device 3 is provided with a heating device 4 and a first gas recovery device 5, and the second gas collection device 3 communicates with the second gas collection device 3 through the first gas recovery device 5 , the first gas recovery device 5 or the second gas recovery device 6 is used to communicate with the heating system.

The first gas collecting device 2 includes a blower 21 and a motor 20, the motor 20 is connected with the blower 21 through a pulley transmission mechanism, the air inlet of the blower 21 is communicated with the waste gas source produced in the tea making process, and the air outlet is connected with the second collector. Gas device 3 communicates. The air outlet of the exhaust fan 21 is provided with a filter screen 22, which is used to filter out fluff and impurities produced by tea making. The filter screen 22 is a photocatalyst cloth net, and the material of the photocatalyst cloth net is nano-titanium dioxide loaded cotton fabric. 22 The load is firm, the nanoscale is high, dense and uniform, and the performance is good. It has remarkable effects in the fields of air purification, odor elimination, sterilization, water purification, and deodorization; the active substances produced under light irradiation have antibacterial and deodorizing properties. Air purification, oil pollution decomposition, anti-mildew and other functions can better improve the effect of gas filtration and impurity removal. The exhaust fan 21 is a centrifugal fan with an output speed of 2400r/min, a flow rate of 12662-17343m ³ /h, a total pressure of 3100-2740Pa, and a power of the motor 20 of 18.5-2kw. This type of exhaust fan 21 has good aerodynamic performance , running balance, small vibration, high efficiency, long service life and so on.

The second gas collection device 3 is a closed box, the bottom of the second gas collection device 3 is provided with a first gas recovery device 5 and a condensed water recovery device, and a heating device 4 is provided on the side wall. The exhaust gas and water vapor are subjected to secondary auxiliary heating to form superheated saturated water vapor and high-temperature hot air. The heating device 4 includes at least two single-tube heat exchangers 41, the single-tube heat exchanger 41 includes fins 43 and elliptical copper tubes 42, the fins 43 are arranged at equal intervals, and the elliptical copper tubes 42 spiral through the fins 43, The external dimensions are 150×230 cm; the material of the fins 43 and the elliptical copper tube 42 is preferably copper with a relatively high thermal conductivity, so as to better conduct heat to complete the entire heat transfer process. The condensed water recovery device includes a filter 30, a regulating valve 31 and an outlet pipe 32. The filter 30 is arranged under the bottom plate of the second gas collecting device 3. The filter 30 communicates with the outlet pipe 32 through the regulating valve 31, and the outlet pipe 32 is connected to the condensed water collection device. . The heat emitted by the steam condensation process can reach 20%-30% of the total heat of the steam, and the higher the pressure and temperature, the more heat the condensation process has, and the greater the proportion of the total heat of the steam, the high-temperature steam carries The heat is equivalent to 5-6 times of the heat carried by water of the same quality. Using the latent heat of water vapor can improve the heating efficiency of the equipment; if 100% of the heat in the condensation process can be recovered and used effectively, the boiler needs Fuel can be saved by 20%-30%. In this embodiment, by comprehensively utilizing the waste heat generated in the high-pressure steam condensation process, up to about 25% of heat energy can be saved.

The first gas recovery device includes a negative pressure fan 51 and an air pump 53. A bottom bin is arranged below the second gas collecting device 3, and several negative pressure fans 51 are arranged on the top of the bottom bin, and the air pump 53 is arranged below the bottom plate of the bottom bin. It communicates with the bottom chamber, and the air pump 53 communicates with the air storage tank 61 of the second gas recovery device 6 through the air duct 52 . In this embodiment, 6 negative pressure blowers 51 of the same size and size are installed. The air inlet of the negative pressure blower 51 communicates with the upper storehouse of the second gas collecting device 3, and the air outlet communicates with the bottom storehouse. The air volume is 3300m ³ / h, the rotating speed is 1400r/min, which is used to inhale superheated saturated water vapor and high-temperature hot air formed in the second gas collecting device 3 into the bottom chamber after auxiliary heating; the air pump 53 model is PCV-2M/2MSV, and the power of the air pump motor It is 125w, the rated working voltage is 230V, the pumping rate is 50L/min, and the weight is about 3.2kg. The air pump 53 communicates with the heat supply source of the tea making process system through the air guide pipe 52 . The second gas recovery device 6 includes an air storage tank 61 and an air compressor 62, one end of the air compressor 62 communicates with one side of the second gas collection device 3, and the other end communicates with the air storage tank 61 through the air guide pipe 52, and the air is compressed The preferred model of machine 62 is 7.5SFb, the exhaust volume is 1.12m ³ /min, the exhaust pressure is 0.8MPa, the rated working voltage is 380V, the rated power is 7.5kw, the overall size is 980mm×650mm×880mm, and the total weight is 80kg ; This type of air compressor 62 has a large displacement, strong working stability, wide application range and low failure rate. Among them, the tea-making exhaust gas becomes high-pressure steam after secondary treatment, and the gas storage tank 61 is used to store the high-pressure steam. The high-temperature and high-pressure steam in the gas storage tank 61 can be transported to the gas storage well or introduced into a single gas cylinder Among them, it is used for the needs of various manufacturing industries; the steam after secondary heating contains high latent heat, and recycling the secondary steam can often save about 10% of energy, and it can be used for low-temperature heat exchange, the second gas The high-temperature gas in the recovery device 6 can be directly used for tea making process system, bathing water, heating system or other low-temperature processes, and the high-temperature and high-pressure gas in the gas storage tank 61 can also be used for high-temperature cutting, laser cutting, heavy truck manufacturing and Various high temperature and high pressure jet equipment and so on.

In this embodiment, through the comprehensive utilization of the waste heat generated by steam condensation and gas in the tea-making waste gas, after secondary heating treatment, the heat can be effectively recovered and utilized, and the condensed water can be discharged reasonably and the high-temperature and high-pressure gas can be stored to improve the heating efficiency and production efficiency of the equipment. , Reduce energy consumption and save energy.

In this description, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention; meanwhile, for those of ordinary skill in the art, according to this The idea of the invention will have changes in the specific implementation and scope of application. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (10)

1. A waste gas recycling device for tea making, characterized in that: it comprises a frame, a first gas collection device, a second gas collection device, a heating device, a first gas recovery device and a second gas recovery device, the frame The first gas collecting device and the second gas collecting device communicated with each other are arranged on the top, the first gas collecting device is used to discharge the waste gas generated in the tea making process into the second gas collecting device, the The heating device and the first gas recovery device are arranged in the second gas collection device, the second gas collection device communicates with the second gas collection device through the first gas recovery device, and the first gas collection device communicates with the second gas collection device. The gas recovery device or the second gas recovery device is used to communicate with the heating system. 2. The tea-making waste gas recovery and utilization device according to claim 1, characterized in that: the first gas collecting device includes an exhaust fan and a motor, the motor is connected with the exhaust fan through a pulley transmission mechanism, and the The air inlet of the suction fan communicates with the waste gas source generated in the tea making process, and the air outlet communicates with the second gas collecting device. 3. The tea-making waste gas recovery and utilization device according to claim 2, characterized in that: the air outlet of the exhaust fan is provided with a filter screen, the filter screen is a photocatalyst cloth net, and the material of the photocatalyst cloth net is Nano titanium dioxide loaded cotton fabric. 4. The tea making waste gas recovery and utilization device according to claim 2, characterized in that: the exhaust fan is a centrifugal fan with an output speed of 2400r/min, a flow rate of 12662-17343m ³ /h, and a total pressure of 3100- 2740Pa, the motor power is 18.5-2kw. 5. The tea making waste gas recovery and utilization device according to claim 1, characterized in that: the second gas collection device is a closed box, and the bottom of the second gas collection device is provided with the first gas recovery device. The device and the condensed water recovery device are provided with the heating device on the side wall. 6. The tea-making waste gas recovery and utilization device according to claim 5, characterized in that: the heating device includes at least two single-tube heat exchangers, and the single-tube heat exchangers include fins and elliptical copper tubes , the fins are arranged at equal intervals, and the elliptical copper tube spirally passes through the fins. 7. The tea-making exhaust gas recovery and utilization device according to claim 5, characterized in that: the condensed water recovery device includes a filter, a regulating valve and a water outlet pipe, and the filter is arranged under the bottom plate of the second gas collection device , the filter tip communicates with the water outlet pipe through the regulating valve, and the water outlet pipe is connected to the condensed water collecting device. 8. The tea-making waste gas recovery and utilization device according to claim 1, characterized in that: the first gas recovery device includes a negative pressure fan and an air pump, and a bottom chamber is arranged below the second gas collection device, and the Several negative pressure fans are arranged on the top of the bottom bin, the air pump is arranged under the bottom plate of the bottom bin and communicated with the bottom bin, and the air pump is connected to the storage tank of the second gas recovery device through an air guide pipe. Gas tank connected. 9. The tea-making waste gas recovery and utilization device according to claim 8, characterized in that: the air pump communicates with the heat supply source of the tea-making process system through an air guide tube. 10. The tea making waste gas recovery and utilization device according to claim 1, characterized in that: the second gas recovery device comprises an air storage tank and an air compressor, one end of the air compressor is connected to the second gas collector One side of the device communicates, and the other end communicates with the air storage tank through an air guide tube.

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