Heat recovery energy-saving system for quick-frozen food production line

Abstract

The utility model relates to a heat recovery energy-saving system for a quick-frozen food production line, which belongs to the technical field of quick-frozen food production and comprises an air inlet box and a high-temperature fresh air chamber. A wet film humidifying section is fixedly installed in the air inlet box, a fan section is fixedly installed in the air inlet box, and a medium-efficiency filtering section is fixedly installed in the air inlet box. The heat recovery energy-saving system of the quick-frozen food production line replaces independent air-conditioning cooling systems of a first cooling area and a second cooling area, replaces independent fresh air supplement and exhaust systems of the rear section and the front section of an original steam cabinet, can serve as fresh air preheating supplement air of a forming room in winter, reduces preheating energy consumption of the fresh air of the forming room, achieves multiple purposes, and is high in practicability. And the air flows from the high-clean area to the low-clean area, so that the sanitary requirement is met, and the ventilation energy consumption of the air conditioner is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to quick -frozen food production technical field, concretely is quick -frozen food production line heat recovery energy -saving system. BACKGROUND

[0002] The existing quick -frozen workshop steam cabinet front section, rear section all are equipped with independent fresh air and exhaust system, and the forming room has fresh air preheating system in winter, and each part sends exhaust, fresh air, air conditioning air independently, and the system independently operates total energy consumption is very big.

[0003] The existing quick -frozen workshop cold room is air -conditioned, and the air -conditioned air temperature is low, because the surface of the steamed stuffed bun is high temperature when being taken out from the steam cabinet, and is also in the process of moisture evaporation, and the cold and hot alternation makes the surface of the steamed stuffed bun easy to appear condensate, which affects the product quality of the steamed stuffed bun, and therefore the quick -frozen food production line heat recovery energy -saving system is proposed. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides quick -frozen food production line heat recovery energy -saving system, has the advantages of meeting the health requirements, greatly reducing the air -conditioning ventilation energy consumption, solves the problem that the cold room of the quick -frozen workshop is air -conditioned, and the air -conditioned air temperature is low, because the surface of the steamed stuffed bun is high temperature when being taken out from the steam cabinet, and is also in the process of moisture evaporation, and the cold and hot alternation makes the surface of the steamed stuffed bun easy to appear condensate, which affects the product quality of the steamed stuffed bun.

[0005] To achieve the above object, the utility model provides the following technical scheme: quick -frozen food production line heat recovery energy -saving system, including air intake box and high temperature fresh air chamber, the outside of air intake box is equipped with air supply structure;

[0006] The air supply structure includes the primary filter section fixedly installed in the air intake box, the inside of air intake box is fixedly installed with wet membrane humidification section, the inside of air intake box is fixedly installed with fan section, the inside of air intake box is fixedly installed with medium -efficiency filter section, the left side wall of air intake box is fixedly installed with horizontal laminar flow air supply box, the inside of horizontal laminar flow air supply box is fixedly installed with two layer ovens, the inside of horizontal laminar flow air supply box is fixedly installed with cold and cool second area air conditioning unit, the left side wall of horizontal laminar flow air supply box is fixedly installed with smoke hood exhaust box, the inside of smoke hood exhaust box is fixedly installed with two air supply machines, and the inside of smoke hood exhaust box is fixedly installed with steam cabinet.

[0007] Further, the top of the horizontal laminar flow air supply box is provided with six electric valves, and the six electric valves are DFM, DFM, DFM, DFM, DFM and DFM respectively.

[0008] Further, the top of the smoke hood exhaust box is provided with two exhaust fans.

[0009] Further, two air supplementing machines are fixedly installed in the interior of the horizontal layer flow air supply box.

[0010] Further, the horizontal layer flow air supply box comprises a quick-frozen package cooling area I and a quick-frozen package cooling area II, the cooling area II air conditioning unit is installed in the interior of the quick-frozen package cooling area II, and the interiors of the quick-frozen package cooling area I and the quick-frozen package cooling area II are each provided with an FFU.

[0011] Further, the high-temperature fresh air chamber is located at the left side of the air inlet box.

[0012] Compared with the prior art, the technical scheme has the following beneficial effects:

[0013] The quick-frozen food production line heat recovery energy-saving system replaces the independent air conditioning cooling systems of the cooling area I and the cooling area II, replaces the independent fresh air supplementing and exhaust air systems of the rear section and the front section of the original steaming cabinet, and the cooling exhaust air in winter can also be used as fresh air preheating supplementing air of the forming room, thereby reducing the preheating energy consumption of the fresh air of the forming room, achieving one air with multiple uses, and air flows from a high-cleanliness area to a low-cleanliness area, which meets the health requirements and greatly reduces the air conditioning ventilation energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a summer mode structure schematic view of the utility model;

[0015] Fig. 2 It is a winter mode structure schematic view of the utility model.

[0016] In the drawing:

[0017] 1, air inlet box; 2, primary efficiency filtering section; 3, wet membrane humidifying section; 4, fan section; 5, medium efficiency filtering section; 6, horizontal layer flow air supply box; 7, layer furnace; 8, cooling area II air conditioning unit; 9, smoke hood exhaust air box; 10, air supplementing machine; 11, steaming cabinet; 12, high-temperature fresh air chamber; 13, electric valve. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection range of the utility model.

[0019] Please refer to Figs. 1-2 The quick-frozen food production line heat recovery energy-saving system in the embodiments comprises an air inlet box 1 and a high-temperature fresh air chamber 12, and the air inlet box 1 is externally provided with an air supply structure.

[0020] The high-temperature fresh air chamber 12 is located on the left side of the air inlet box 1.

[0021] The air supply structure comprises a primary filter section 2 fixedly installed in the air inlet box 1, a wet membrane humidification section 3 fixedly installed in the air inlet box 1, a fan section 4 fixedly installed in the air inlet box 1, a medium filter section 5 fixedly installed in the air inlet box 1, and a horizontal laminar flow air supply box 6 fixedly installed on the left side wall of the air inlet box 1. The horizontal laminar flow air supply box 6 is provided with six electric valves 13 on the top thereof, and the six electric valves 13 are respectively DFM1, DFM2, DFM3, DFM4, DFM5 and DFM6.

[0022] The horizontal laminar flow air supply box 6 is fixedly installed with two layer ovens 7, and is fixedly installed with a cold cooling two-zone air conditioning unit 8. The horizontal laminar flow air supply box 6 comprises a quick-freezing bag cold cooling first zone and a quick-freezing bag cold cooling second zone. The cold cooling two-zone air conditioning unit 8 is installed in the quick-freezing bag cold cooling second zone, and FFUs are arranged in the quick-freezing bag cold cooling first zone and the quick-freezing bag cold cooling second zone.

[0023] The horizontal laminar flow air supply box 6 is fixedly installed with a smoke hood exhaust air box 9 on the left side wall thereof. The smoke hood exhaust air box 9 is provided with two exhaust fans on the top thereof. The smoke hood exhaust air box 9 is fixedly installed with two air supplementing fans 10 in the interior thereof. The horizontal laminar flow air supply box 6 is fixedly installed with two air supplementing fans 10 in the interior thereof. The smoke hood exhaust air box 9 is fixedly installed with a steaming cabinet 11 in the interior thereof.

[0024] In the embodiment, the two exhaust fans are respectively FP1 and FP2.

[0025] In the embodiment, in summer, the high-humidity cold cooling unit air supply is opened, the water pump is automatically started and stopped according to the humidity, the fresh air humidity is lower than 75% and is opened, higher than 85% and is closed, DFM1, DFM5, DFM6 are closed, DFM3, DFM4 are opened, the high-humidity cold cooling unit air supply is opened, the outdoor fresh air passes through the primary filter section 2 and the medium filter section 5, and is supplied to the top of the cold cooling first zone laminar flow air supply static pressure box. At the same time, all the FFUs are opened. After passing through the FFUs, the air is deeply cleaned and pressurized, and is then sent into the cold cooling first zone room and the first zone product heat exchange temperature rise. After that, the air enters the steaming cabinet 11 rear section as background air supplementing through the door hole or the louver. After passing through the exhaust fan PF1, the air is sent to the steaming cabinet 11 front section as background air supplementing. Finally, the hot air is exhausted to the outdoor through the exhaust fan PF2. The quick-freezing second zone air conditioning unit is opened, all the FFUs are opened, the cold cooling second zone indoor air is circulated, cooled, dehumidified, deeply filtered and pressurized, and is then sent back to the indoor. The system uses the outdoor air used in the quick-freezing first zone as the air supplementing system of the steaming cabinet 11 rear section and front section, truly realizes one air multiple uses, replaces the original independent fresh air supplementing and exhaust system, and greatly reduces the air conditioning ventilation energy consumption.

[0026] In this embodiment, winter conditions: high humidity cold cooling unit air supply open, water pump according to the humidity automatic start-stop fresh air humidity below 75% open, higher than 85% close, DFM2, DFM4 close, DFM1, DFM6, DFM3, DFM5 open, high humidity cold cooling unit will be outdoor wind through the initial filter section 2 and medium efficiency filter section 5, to the cold cooling two zone laminar air supply static pressure tank top air supply, while opening all FFU, after through the FFU depth cleaning and pressurization into the cold cooling two zone room, cold cooling two zone air conditioning unit 8 does not run. Air through the cold cooling two zone and product heat exchange temperature rise, through the medium efficiency filter and DFM6 into the cold cooling one zone laminar tank top, while opening all FFU of cold cooling one zone, then through the FFU of cold cooling one zone pressurized filtration to cold cooling one zone room, air and one zone product through heat exchange two temperature rise, through the cold cooling one zone door or louver into the steam cabinet 11 after section as make-up air, then through PF1 to steam cabinet 11 front section as make-up air, finally through PF2 to the forming room as workshop fresh air make-up air, the system will the outdoor air used in the quick freezing one zone as make-up air system of steam cabinet 11 after section and front section, and then to the forming room as fresh air heating make-up air system, truly do one air multiple use, replace the original independent fresh air make-up air and exhaust system, replace the winter fresh air preheating system, greatly reduce the winter air conditioning exhaust and fresh air heating energy consumption.

[0027] In this embodiment, the temperature and humidity separation cooling mode, the humidity priority of cold cooling one zone, the relative humidity is controlled by high humidity cold cooling unit in 70% to 85%; the temperature priority of cold cooling two zone, the outlet air temperature is controlled by cold cooling two zone air conditioning unit 8 not less than 18 DEG C.

[0028] In this embodiment, the working condition is judged: the outdoor state is judged through the temperature and humidity signals of fresh air inlet calculated by the controller: when the outdoor wet bulb temperature is greater than 16±0.5 DEG C, it is judged as summer conditions; when the outdoor wet bulb temperature is less than 15±0.5 DEG C, it is judged as winter conditions.

[0029] In this embodiment, the cold cooling mode air flow organization is horizontal laminar air supply; the room air cleanliness is 100,000 levels. The air of one air multiple use is from high cleanliness area to low cleanliness area, which meets the health requirements.

[0030] The electrical components appearing in the paper are electrically connected with the controller and the power supply, the control mode of the utility model is controlled by the controller, the control circuit of the controller can be realized by simple programming of the person skilled in the art, the power supply also belongs to the common knowledge in the art, and the utility model is mainly used for protecting mechanical devices, so the control mode and circuit connection of the utility model are not explained in detail.

[0031] The working principle of the above embodiment is:

[0032] The outdoor fresh air enters the fan room, firstly passes through the primary filter section 2 and the wet membrane humidifying section 3, and then is sent by the air supply fan, passes through the medium filter section 5, and the filtered fresh air is sent into the indoor by the DFM1 through the air supply pipeline, and passes through the FFU high-efficiency filter section again, is sent to the quick-freezing bag cooling area II through the air supply laminar flow channel and double-layer grid air outlet, and the temperature is controlled by the cooling area II air conditioning unit 8 above the ceiling of the quick-freezing bag cooling area II, the filtered fresh air is sent into the indoor by the DFM2 and the manual multi-page regulating valve through the air supply pipeline, and passes through the FFU high-efficiency filter section again, is sent to the quick-freezing bag cooling area I through the air supply laminar flow channel and double-layer grid air outlet, and the ventilation channel is arranged between the quick-freezing bag cooling area II and the quick-freezing bag cooling area I, and the ventilation of the quick-freezing bag cooling area II and the quick-freezing bag cooling area I is controlled by the DFM6; then the air is sent to the rear section of the steaming cabinet 11 through the air supply channel, is discharged by the PF1 through the smoke hood exhaust box 9 and the exhaust pipeline, is sent to the front section of the steaming cabinet 11 by the DFM3, and finally is discharged by the PF2 through the smoke hood exhaust box 9 and the exhaust pipeline, and is controlled by the DFM4 to be discharged to the outdoor or is controlled by the DFM5 to be sent to the quick-freezing bag forming room.

[0033] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0034] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A heat recovery energy-saving system for a quick-frozen food production line, comprising an air inlet box (1) and a high-temperature fresh air chamber (12), characterized in that: The air inlet box (1) is provided with an air supply structure on its exterior; The air supply structure includes a primary filter section (2) fixedly installed inside the air inlet box (1), a wet film humidification section (3) fixedly installed inside the air inlet box (1), a fan section (4) fixedly installed inside the air inlet box (1), a medium-efficiency filter section (5) fixedly installed inside the air inlet box (1), a horizontal laminar flow air supply box (6) fixedly installed on the left side wall of the air inlet box (1), two laminar flow air supply boxes (7) fixedly installed inside the horizontal laminar flow air supply box (6), a cooling two-zone air conditioning unit (8) fixedly installed inside the horizontal laminar flow air supply box (6), a fume hood exhaust box (9) fixedly installed on the left side wall of the horizontal laminar flow air supply box (6), two make-up air fans (10) fixedly installed inside the fume hood exhaust box (9), and a steam cabinet (11) fixedly installed inside the fume hood exhaust box (9).

2. The heat recovery and energy-saving system for a quick-frozen food production line according to claim 1, characterized in that: The top of the horizontal laminar flow air supply box (6) is provided with six electric valves (13), namely DFM1, DFM2, DFM3, DFM4, DFM5 and DFM6.

3. The heat recovery and energy-saving system for a quick-frozen food production line according to claim 1, characterized in that: The top of the fume hood exhaust box (9) is equipped with two exhaust fans.

4. The heat recovery and energy-saving system for a quick-frozen food production line according to claim 1, characterized in that: The horizontal laminar flow air supply box (6) is internally fixedly equipped with two make-up air fans (10).

5. The heat recovery and energy-saving system for a quick-frozen food production line according to claim 1, characterized in that: The horizontal laminar flow air box (6) includes a quick-freezing pack cooling zone 1 and a quick-freezing pack cooling zone 2. The cooling zone 2 air conditioning unit (8) is installed inside the quick-freezing pack cooling zone 2. Both the quick-freezing pack cooling zone 1 and the quick-freezing pack cooling zone 2 are equipped with FFUs.

6. The heat recovery energy-saving system for a quick-frozen food production line according to claim 1, characterized in that: The high-temperature fresh air chamber (12) is located on the left side of the air inlet box (1).

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