RTO hot fresh air waste heat recovery and cyclic utilization energy-saving device

Abstract

The utility model provides an RTO hot fresh air waste heat recycling energy-saving device. An AHU air conditioning system comprises an air conditioning air cabinet, an air conditioning air return pipe, an air conditioning air supply pipe, a cold water pipe, a hot water pipe, a humidifying pipe and an air diffuser. One end of the air-conditioning return duct extends into the production workshop from the ceiling upper static pressure layer, and the other end is communicated with the return air inlet; one end of the air conditioner air supply pipe is positioned on the ceiling upper static pressure layer and communicated with the air diffuser on the ceiling, and the other end is communicated with the air outlet; a hot fresh air pipe of the RTO hot fresh air system communicates with the first air inlet and is provided with a hot fresh air electric valve. An outdoor fresh air pipe of the outdoor fresh air system communicates with the second air inlet and is provided with an outdoor fresh air electric valve. Indoor exhaust equipment is arranged in the ceiling upper static pressure layer and the ceiling, and at least part of the indoor exhaust equipment is communicated with the outdoor exhaust equipment through an exhaust pipe; and the control system is respectively in information connection with the systems. The device can more efficiently realize the constant temperature and humidity control of the production workshop and achieve the purpose of saving energy by utilizing RTO hot fresh air.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of environmental protection and energy saving devices, and more particularly relates to an RTO hot fresh air waste heat recovery and recycling energy saving device. BACKGROUND

[0002] When the temperature and humidity range needs to be considered in a workshop, hot water or electric heating is usually used to provide a heat source for equipment, and then the heat is sent to the workshop through air pipes to make the temperature of the workshop rise to the required heating temperature. However, no matter hot water or electric heating, the energy consumption is very high. Meanwhile, the production equipment also generates a large amount of hot exhaust air in the production process, resulting in energy waste. CONTENT OF THE INVENTION

[0003] The purpose of the embodiment of the application is to provide an RTO hot fresh air waste heat recovery and recycling energy saving device to solve the above technical problems in the prior art.

[0004] To achieve the above purpose, the technical scheme adopted by the application is as follows: an RTO hot fresh air waste heat recovery and recycling energy saving device is provided for an environmental protection workshop, the environmental protection workshop includes a ground, a top wall, a peripheral wall, a ceiling, the top wall, the ceiling and the peripheral wall form an upper static pressure layer of the ceiling, the ceiling, the ground and the peripheral wall form a production workshop, and the RTO hot fresh air waste heat recovery and recycling energy saving device includes:

[0005] An AHU air conditioning system includes an air conditioning air cabinet, an air conditioning return air pipe, an air conditioning air supply pipe, a cold water pipe, a hot water pipe, a humidification pipe and a plurality of air diffusers. The air conditioning air cabinet includes a first air inlet, a second air inlet, an air return, and an air outlet. One end of the air conditioning return air pipe extends into the production workshop from the upper static pressure layer of the ceiling, and the other end of the air conditioning return air pipe is in communication with the air return. One end of the air conditioning air supply pipe is located in the upper static pressure layer of the ceiling and is in communication with the air diffuser installed on the ceiling, and the other end of the air conditioning air supply pipe is in communication with the air outlet.

[0006] An RTO hot fresh air system includes a hot fresh air pipe in communication with the first air inlet and a hot fresh air electric valve arranged on the hot fresh air pipe.

[0007] An outdoor fresh air system includes an outdoor fresh air pipe in communication with the second air inlet and an outdoor fresh air electric valve arranged on the outdoor fresh air pipe.

[0008] An exhaust air system includes an exhaust air pipe, an indoor exhaust air device and an outdoor exhaust air device. The indoor exhaust air device is arranged in the upper static pressure layer of the ceiling and on the ceiling. At least part of the indoor exhaust air device is in communication with the outdoor exhaust air device through the exhaust air pipe.

[0009] A control system is in information connection with the AHU air conditioning system, the RTO hot fresh air system, the outdoor fresh air system and the exhaust air system.

[0010] Wherein, the RTO hot fresh air waste heat recovery recycling energy-saving device includes RTO hot fresh air state and outdoor fresh air state; in the RTO hot fresh air state, the RTO hot fresh air system is opened, and the outdoor fresh air system is closed; in the outdoor fresh air state, the RTO hot fresh air system is closed, and the outdoor fresh air system is opened; in the RTO hot fresh air state or the outdoor fresh air state, the AHU air conditioning system is used to control the production workshop to be in the constant temperature and humidity state, and the exhaust system is used to control the upper static pressure layer of the ceiling and the production workshop to be in the micro negative pressure state.

[0011] Optionally, the RTO hot fresh air system further includes an RTO device and a hot fresh air manual air valve;

[0012] The hot fresh air generated by the RTO device enters the air conditioning air cabinet through the hot fresh air pipe and the first air inlet;

[0013] The hot fresh air manual air valve is arranged on the hot fresh air pipe and located between the hot fresh air electric valve and the first air inlet.

[0014] Optionally, the outdoor fresh air system further includes a fresh air rainproof louver fan and a fresh air manual air valve; the fresh air rainproof louver fan is arranged at the end of the outdoor fresh air pipe away from the air conditioning air cabinet, and the fresh air manual air valve is arranged on the outdoor fresh air pipe and located between the fresh air rainproof louver fan and the outdoor fresh air electric valve;

[0015] A first pressure probe is further arranged in the upper static pressure layer of the ceiling; the outdoor fresh air electric valve and the first pressure probe are both connected with the control system information.

[0016] Optionally, the indoor exhaust device includes a first exhaust louver, a second exhaust louver and a workshop exhaust fan; the first exhaust louver and the workshop exhaust fan are both arranged in the upper static pressure layer of the ceiling, and the workshop exhaust fan is located below the first exhaust louver; the second exhaust louver is installed on the ceiling and communicates with the workshop exhaust fan;

[0017] The outdoor exhaust device includes a static pressure layer exhaust fan; one end of an exhaust pipe extending out of the environmental protection workshop communicates with the static pressure layer exhaust fan, and the other end of the exhaust pipe located in the upper static pressure layer of the ceiling communicates with the first exhaust louver; an exhaust electric valve and an exhaust manual air valve are arranged on the exhaust pipe, and the exhaust manual air valve is located between the exhaust electric valve and the static pressure layer exhaust fan;

[0018] A first temperature probe is further arranged in the upper static pressure layer of the ceiling; the static pressure layer exhaust fan and the first temperature probe are both connected with the control system information.

[0019] Optionally, the RTO hot fresh air waste heat recovery recycling energy-saving device further includes a make-up air excess pressure valve; the make-up air excess pressure valve is arranged on the peripheral wall at the intersection of the upper static pressure layer of the ceiling and the outdoor.

[0020] Optionally, the air conditioner air supply pipe is provided with a second temperature probe and an air supply check valve, the second temperature probe is located between the air outlet and the air supply check valve, and the second temperature probe is in information connection with the control system.

[0021] Optionally, the number of the diffusers is multiple, the multiple diffusers are distributed on the ceiling in a spaced manner, the air conditioner air supply pipe comprises an air supply main pipe and multiple air supply branch pipes, each diffuser is communicated with the air supply main pipe through an air supply branch pipe, and each air supply branch pipe is provided with an air volume regulating valve.

[0022] Optionally, the air conditioner air return pipe is provided with a third temperature probe, a first humidity probe, a first air return manual air valve and a second air return manual air valve, the third temperature probe and the first humidity probe are in information connection with the control system respectively, the first air return manual air valve is arranged close to the air return outlet, and the second air return manual air valve is arranged close to the ceiling.

[0023] Optionally, the environmentally-friendly workshop further comprises an air return column wall, the upper end of the air return column wall is connected with the ceiling, the lower end of the air return column wall is connected with the ground, the air return column wall is separated from the surrounding wall to form an air return vertical shaft, the AHU air conditioner system further comprises an air return louver, the air return louver is arranged at the lower part of the air return column wall and is communicated with the production workshop and the air return vertical shaft, and one end of the air conditioner air return pipe penetrates through the ceiling from the upper static pressure layer of the ceiling and extends into the air return vertical shaft.

[0024] Optionally, the hot water pipe comprises a hot water inlet pipe and a hot water outlet pipe which are connected with the air conditioner air cabinet respectively, and the cold water pipe comprises a cold water inlet pipe and a cold water outlet pipe which are connected with the air conditioner air cabinet respectively.

[0025] The cold water inlet pipe is provided with a turbine manual butterfly valve and a Y-shaped filter, the cold water outlet pipe is provided with a turbine manual butterfly valve and a cold water electric valve, and the cold water electric valve is in information connection with the control system.

[0026] The hot water inlet pipe is provided with a turbine manual butterfly valve and a Y-shaped filter, the hot water outlet pipe is provided with a turbine manual butterfly valve and a hot water electric valve, and the hot water electric valve is in information connection with the control system.

[0027] The humidifying pipe is provided with a humidifying electric valve, and the humidifying electric valve is in information connection with the control system.

[0028] The beneficial effects of the RTO hot fresh air waste heat recovery and recycling energy-saving device provided in this application are as follows: Since the control system is connected to the AHU air conditioning system, the RTO hot fresh air system, the outdoor fresh air system, and the overall exhaust system, it can automatically control each system based on the corresponding monitoring results. For example, the control system can calculate the demand for cooling, heating, dehumidification, or humidification based on the monitored return air temperature and humidity, and control the input of cold and hot water to achieve constant temperature and humidity control in the production workshop. When the heat generation inside the workshop is high and the outdoor temperature is low, the control system will activate the RTO hot fresh air system and close the outdoor fresh air system, i.e., it will be in RTO hot fresh air mode. In this way, the clean, high-temperature hot fresh air generated by the RTO equipment used for waste gas treatment can be connected to the heating section of the air conditioning unit, mixed with the indoor circulating air, and then sent to the production workshop, thereby achieving energy saving. At the same time, after the RTO hot fresh air system is activated, the size of the hot fresh air electric valve can be automatically adjusted to further save energy. In special circumstances such as maintenance of the RTO (Regenerative Thermal Oxidizer) hot air system, the backup outdoor fresh air system is activated under the control of the control system, while the electric valve of the RTO hot air system is closed, thus entering outdoor fresh air mode. Simultaneously, the control system automatically adjusts the ratio of chilled and hot water input based on outdoor conditions to ensure uninterrupted indoor conditions even when the RTO hot air system is not in use. The control system can also automatically adjust the fan operating frequency based on the air volume measured on the air conditioning duct. When the temperature in the production workshop is high and / or the indoor pressure is positive, the control system activates the exhaust system based on relevant monitoring data, thereby ensuring that the temperature in the production workshop meets requirements and that the static pressure layer above the ceiling and the production workshop are under a slight negative pressure state. In summary, this RTO hot air waste heat recovery and recycling energy-saving device enables the environmentally friendly workshop to achieve environmental protection and energy-saving effects under constant temperature, constant humidity, and slight negative pressure conditions by utilizing the automatic regulation of the RTO hot air system. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of the RTO hot fresh air waste heat recovery and recycling energy-saving device provided in the embodiments of this application;

[0031] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0032] Figure 3 is Figure 1 an enlarged schematic view at B;

[0033] Figure 4 is Figure 1 an enlarged schematic view at C;

[0034] Figure 5 is Figure 1 an enlarged schematic view at D;

[0035] Figure 6 is Figure 1 an enlarged schematic view at E;

[0036] Figure 7 is Figure 1 an enlarged schematic view at F.

[0037] BRIEF DESCRIPTION OF DRAWINGS

[0038]

[0039] DETAILED DESCRIPTION

[0040] In order to make the technical problems solved by the present application, the technical solutions and the beneficial effects clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and should not be used to limit the present application.

[0041] It should be noted that when an element is referred to as being "fixed to" or "set to" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0042] It should also be noted that the left, right, up and down orientation terms in the embodiments of the present application are only relative concepts or are with reference to the normal use state of the product, and should not be considered as limiting.

[0043] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] In addition, the terms "first", "second", etc. are used only for the purpose of description, and should not be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0045] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0046] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.

[0047] The embodiment of the present application provides an RTO heat fresh air waste heat recovery and recycling energy-saving device.

[0048] Please refer to Figures 1 to 7In an embodiment, the RTO hot fresh air waste heat recovery recycling energy-saving device is used in an environmentally friendly workshop, which includes a ground, a top wall, a peripheral wall, a ceiling 110, the top wall, the ceiling 110 and the peripheral wall forming an upper static pressure layer 120 of the ceiling, and the ceiling 110, the ground and the peripheral wall forming a production workshop 130. Specifically, in this embodiment, the RTO hot fresh air waste heat recovery recycling energy-saving device includes an AHU (Air Handling Unit, air handling unit) air conditioning system, an RTO (Regenerative Thermal Oxidizer, regenerative thermal oxidizer) hot fresh air system, an outdoor fresh air system, an exhaust system and a control system 600. Among them, the AHU air conditioning system includes an air conditioning air cabinet 210, an air conditioning return air pipe 220, an air conditioning air supply pipe 230, a cold water pipe 240, a hot water pipe 250, a humidification pipe 260 and a plurality of diffusers 270; the air conditioning air cabinet 210 includes a first air inlet 211, a second air inlet 212, an air return port 213 and an air outlet 214; one end of the air conditioning return air pipe 220 extends into the production workshop 130 from the upper static pressure layer 120 of the ceiling, and the other end of the air conditioning return air pipe 220 is in communication with the air return port 213; one end of the air conditioning air supply pipe 230 is located in the upper static pressure layer 120 of the ceiling and is in communication with the diffuser 270 installed on the ceiling 110, and the other end of the air conditioning air supply pipe 230 is in communication with the air outlet 214. The RTO hot fresh air system includes a hot fresh air pipe 310 in communication with the first air inlet 211 and a hot fresh air electric valve 320 provided on the hot fresh air pipe 310. The outdoor fresh air system includes an outdoor fresh air pipe 410 in communication with the second air inlet 212 and an outdoor fresh air electric valve 420 provided on the outdoor fresh air pipe 410. The exhaust system includes an exhaust pipe 510, an indoor exhaust device and an outdoor exhaust device; indoor exhaust devices are provided in the upper static pressure layer 120 of the ceiling and on the ceiling 110, and at least part of the indoor exhaust devices are in communication with the outdoor exhaust device through the exhaust pipe 510. The control system 600 is respectively connected with the AHU air conditioning system, the RTO hot fresh air system, the outdoor fresh air system and the exhaust system. In actual use, the RTO hot fresh air waste heat recovery recycling energy-saving device includes an RTO hot fresh air state and an outdoor fresh air state; in the RTO hot fresh air state, the RTO hot fresh air system is opened and the outdoor fresh air system is closed; in the outdoor fresh air state, the RTO hot fresh air system is closed and the outdoor fresh air system is opened; in the RTO hot fresh air state or the outdoor fresh air state, the AHU air conditioning system is used to control the production workshop 130 to be in a constant temperature and humidity state, and the exhaust system is used to control the upper static pressure layer 120 of the ceiling and the production workshop 130 to be in a micro-negative pressure state.

[0049] Based on the design, in the embodiment, since the control system 600 is connected with the AHU air conditioning system, the RTO hot fresh air system, the outdoor fresh air system and the exhaust air system respectively, the automatic control of each system can be realized according to the corresponding monitoring results. For example, the control system 600 can calculate the demand of refrigeration, heating, dehumidification or humidification according to the monitored temperature and humidity of the return air, and control the input of cold water and hot water to realize the constant temperature and humidity control of the production workshop 130. When the heat generation in the workshop is large and the outdoor temperature is low, the control system 600 will control the RTO hot fresh air system of the RTO hot fresh air to open, and the outdoor fresh air system is closed, that is, in the RTO hot fresh air state, so that the clean high-temperature hot fresh air generated by the RTO device for waste gas treatment can be connected to the heating section of the air conditioning cabinet 210 and mixed with the indoor circulating air and then sent to the production workshop 130, so as to achieve the purpose of energy saving; at the same time, when the RTO hot fresh air system is opened, the size of the hot fresh air electric valve 320 can be automatically adjusted to further save energy. When the RTO hot fresh air system is under maintenance or other special conditions, the outdoor fresh air system as a backup is controlled by the control system 600 to open, and the hot fresh air electric valve 320 of the RTO hot fresh air system is controlled to close, that is, in the outdoor fresh air state, at the same time, the control system 600 will automatically adjust the input proportion of cold water and hot water according to the outdoor working condition, so as to ensure that the indoor working condition is not affected when the RTO hot fresh air system is not used. The control system 600 can also automatically adjust the frequency of the fan operation according to the determined air supply quantity on the air supply pipe 230. When the temperature in the production workshop 130 is high and / or the indoor pressure is positive, the control system 600 will open the exhaust air system according to the relevant monitoring data, so as to ensure that the temperature in the production workshop 130 meets the requirements and the upper static pressure layer 120 of the ceiling and the production workshop 130 are in a micro-negative pressure state. In summary, the RTO hot fresh air waste heat recovery and recycling energy-saving device can make the environmental protection workshop in a constant temperature and humidity micro-negative pressure state, automatically control the RTO hot fresh air of the RTO hot fresh air system, and realize the technical effect of environmental protection and energy saving.

[0050] It should be noted that, in the embodiment, as shown in Figure 1 The AHU air conditioning system, the air conditioning cabinet 210, the cold water pipe 240, the hot water pipe 250, the humidification pipe 260, the outdoor section of the air conditioning return air pipe 220, the outdoor section of the air conditioning supply air pipe 230, the outdoor fresh air system and the RTO hot fresh air system are located outside the environmental protection workshop. In addition, the control system 600 is a PLC (Programmable Logic Controller) control system 600, and the ceiling 110 is preferably a color steel ceiling 110. The information connection between each functional system and the control system 600 means that each functional system can send corresponding information data to the control system 600. The information connection can be wireless connection or wired connection.

[0051] Referring to Figure 1 and Figure 6 In the embodiment, the RTO heat fresh air system further comprises an RTO device and a heat fresh air manual air valve 440330; the heat fresh air generated by the RTO device enters the air conditioning air cabinet 210 through the heat fresh air pipe 310 and the first air inlet 211; the heat fresh air manual air valve 440330 is arranged on the heat fresh air pipe 310 and located between the heat fresh air electric valve 320 and the first air inlet 211. Specifically, the RTO device is an environmentally friendly waste gas treatment device, the AHU air conditioning system collects the hot exhaust air of the production equipment in the production workshop 130 and sends it to the RTO device, and then the RTO device can generate clean high-temperature heat fresh air, i.e. RTO heat fresh air. When the RTO heat fresh air waste heat recovery and recycling energy-saving device is in the RTO heat fresh air state, the heat fresh air electric valve 320 is opened, the RTO heat fresh air can be connected to the first air inlet 211 of the air conditioning air cabinet 210 through the heat fresh air pipe 310, then mixed with the indoor circulating air in the heating section of the air conditioning air cabinet 210, and then sent to the production workshop 130 through the air conditioning air supply pipe 230, so as to achieve the effect of energy saving by using RTO heat fresh air. Here, the heat fresh air electric valve 320 is a proportional closed electric valve, which can be adjusted according to the outlet air temperature of the AHU air conditioning system, so as to automatically adjust the required temperature of the production workshop 130 and ensure the constant temperature and humidity control of the production workshop 130. In addition, the heat fresh air manual air valve 440330 arranged between the heat fresh air electric valve 320 and the first air inlet 211 is mainly used as a backup regulating valve, which can also realize the regulation and control of the RTO heat fresh air through the heat fresh air manual air valve 440330 if the heat fresh air electric valve 320 fails.

[0052] Referring to Figure 1 and Figure 7In the embodiment, the outdoor fresh air system further comprises a fresh air rainproof louver fan 430 and a fresh air manual damper 440. The fresh air rainproof louver fan 430 is arranged at the end of the outdoor fresh air pipe 410 away from the air conditioning air cabinet 210, and the fresh air manual damper 440 is arranged on the outdoor fresh air pipe 410 and located between the fresh air rainproof louver fan 430 and the outdoor fresh air electric valve 420. A first pressure probe 610 is further arranged in the upper static pressure layer 120 of the ceiling. The outdoor fresh air electric valve 420 and the first pressure probe 610 are both in information connection with the control system 600. When the RTO hot fresh air state is achieved, the outdoor fresh air electric valve 420 is opened, and the valve proportion can be adjusted according to the pressure data measured by the first pressure probe 610 arranged in the upper static pressure layer 120 of the ceiling. Meanwhile, the control system 600 can also adjust the proportion of cold water and hot water according to the actual working condition, so as to ensure that the indoor working condition is not affected. In addition, the fresh air manual damper 440 as a backup adjusting valve can ensure the valve adjusting function when the outdoor fresh air electric valve 420 fails. The fresh air rainproof louver fan 430 mainly plays a role in introducing outdoor fresh air and preventing rainwater and the like from entering the air conditioning air cabinet 210 through the outdoor fresh air pipe 410.

[0053] Please refer to Figure 1 , Figures 2 to 4 In the embodiment, the indoor exhaust equipment comprises a first exhaust louver 520, a second exhaust louver 530 and a workshop exhaust fan 540. The first exhaust louver 520 and the workshop exhaust fan 540 are both arranged in the upper static pressure layer 120 of the ceiling, and the workshop exhaust fan 540 is located below the first exhaust louver 520. The second exhaust louver 530 is installed on the ceiling 110 and communicates with the workshop exhaust fan 540, so that the air in the production workshop 130 can be exhausted into the upper static pressure layer 120 of the ceiling through the second exhaust louver 530 and the workshop exhaust fan 540. The outdoor exhaust equipment comprises a static pressure layer exhaust fan 550. One end of an exhaust pipe 510 extending out of the environmental protection workshop communicates with the static pressure layer exhaust fan 550, and the other end of the exhaust pipe 510 located in the upper static pressure layer 120 of the ceiling communicates with the first exhaust louver 520. In this way, the air in the upper static pressure layer 120 of the ceiling can enter the exhaust pipe 510 through the first exhaust louver 520, and then be exhausted to the outside through the static pressure layer exhaust fan 550 connected with the exhaust pipe 510. Specifically, the exhaust pipe 510 comprises an exhaust main pipe and a plurality of exhaust branch pipes, each of which communicates with a first exhaust louver 520. In addition, as shown in Figure 2 The outdoor exhaust equipment further comprises an exhaust rainproof louver 560 and an exhaust check valve 570, etc. The exhaust rainproof louver 560 mainly plays a role in preventing rainwater and the like from entering the static pressure layer exhaust fan 550, and the exhaust check valve 570 plays a role in preventing gas backflow, protecting the fan, saving energy, improving the operating efficiency of the fan, etc. As shown in Figure 1As shown, the intermediate wall separates the entire environmentally friendly workshop into two spaces, each of which has a ceiling upper static pressure layer 120 and a production workshop 130. The two ceiling upper static pressure layers 120 can share one exhaust pipe 510, and one ceiling upper static pressure layer 120 has two exhaust branch pipes to connect two first exhaust louvers 520, respectively. Of course, in other embodiments, the number and distribution of the first exhaust louvers 520 and the exhaust branch pipes can be set according to the actual situation of the workshop, which is not particularly limited here. Further, the exhaust pipe 510 is provided with an exhaust electric valve 580 and an exhaust manual valve 590, and the exhaust manual valve 590 is located between the exhaust electric valve 580 and the static pressure layer exhaust fan 550. The ceiling upper static pressure layer 120 is also provided with a first temperature probe 620, and the static pressure layer exhaust fan 550 and the first temperature probe 620 are both connected to the control system 600. The first temperature probe 620 can monitor the temperature of the ceiling upper static pressure layer 120. When the temperature in the workshop is high, the control system 600 can start the workshop exhaust fan 540 and the static pressure layer exhaust fan 550 according to the actual temperature, so as to discharge the excess high-temperature air to the outside, thereby achieving the cooling of the workshop.

[0054] In particular, in this embodiment, when the static pressure layer exhaust fan 550 is running, its frequency gradually increases according to the program logic through time, realizing a process of 35HZ-50HZ, so as to avoid the indoor pressure being too high to cause positive pressure. The static pressure layer exhaust fan 550 is started by frequency conversion, and is started when any of the following conditions is met: condition one, the temperature of the production workshop 130 is too high for a long time, for example, more than 28 degrees Celsius for 10 minutes continuously and the water valve of the cold water pipe 240 is in full open state; condition two, the production workshop 130 is under positive pressure.

[0055] Further, as shown in Figure 3 and Figure 4 In this embodiment, the RTO heat fresh air waste heat recovery and recycling energy-saving device also includes a make-up air pressure valve 700, which is arranged on the peripheral wall at the intersection of the ceiling upper static pressure layer 120 and the outdoor. The make-up air pressure valve 700 mainly plays a role in assisting the adjustment of the static pressure layer pressure.

[0056] Please refer to Figure 1 , Figure 3 and Figure 6In the embodiment, the air conditioner air supply pipe 230 is provided with a second temperature probe 630 and an air supply check valve 231, the second temperature probe 630 is located between the air outlet 214 and the air supply check valve 231, and the second temperature probe 630 is in information connection with the control system 600. It can be understood that the second temperature probe 630 is used to monitor the air supply temperature in the air conditioner air supply pipe 230, thereby providing a temperature basis for automatic control of the AHU air conditioning system, and the air supply check valve 231 mainly plays a role in preventing air supply flow from flowing back and protecting the air conditioner air cabinet 210. Specifically, in the embodiment, the air supply fan of the AHU air conditioning system is started by frequency conversion, and the running frequency of the air supply fan can be automatically adjusted according to the air supply amount measured in the air supply main pipe 232 of the air conditioner air supply pipe 230. In addition, a static pressure tank 280 communicating between the air conditioner air supply pipe 230 and the air outlet 214 is also provided near the air outlet 214, and the static pressure tank 280 can play a role in optimizing air flow distribution, stabilizing system pressure and improving overall performance.

[0057] Specifically as Figure 1 and Figure 4 shown, in the embodiment, the number of air diffusers 270 is multiple, and the multiple air diffusers 270 are distributed in an interval on the ceiling 110; the air conditioner air supply pipe 230 includes an air supply main pipe 232 and multiple air supply branch pipes 233, each air diffuser 270 is communicated with the air supply main pipe 232 through an air supply branch pipe 233, and each air supply branch pipe 233 is provided with an air volume adjusting valve 234. Here, the interval distribution of multiple air diffusers 270 on the ceiling 110 is conducive to improving the air supply uniformity of the air conditioner, and the air supply amount of each air diffuser 270 can also be adjusted by the corresponding air volume adjusting valve 234. In addition, for the position distribution of the multiple air diffusers 270 and the second exhaust louver 530, the second exhaust louver 530 is preferably arranged in the area of the ceiling 110 close to the peripheral wall, and the multiple air diffusers 270 occupy most of the area of the ceiling 110, so as to further improve the air supply uniformity and facilitate the air in the production workshop 130 to be exhausted to the upper static pressure layer 120 of the ceiling through the second exhaust louver 530 and then discharged to the outside.

[0058] Please refer to Figure 1 , Figure 3 and Figure 7In the embodiment, the air conditioner return air pipe 220 is provided with a third temperature probe 640, a first humidity probe 650, a first return air manual air valve 221 and a second return air manual air valve 222; the third temperature probe 640 and the first humidity probe 650 are respectively in information connection with the control system 600; the first return air manual air valve 221 is arranged near the return air inlet 213, and the second return air manual air valve 222 is arranged near the ceiling 110, so as to respectively realize air volume control and opening and closing control of two ends of the air conditioner return air pipe 220. Here, the third temperature probe 640 can measure the actual temperature in the air conditioner return air pipe 220, and the first humidity probe 650 can measure the actual humidity in the air conditioner return air pipe 220; the measured temperature and humidity data can be transmitted to the control system 600 in information connection with the control system 600; then, the control system 600 compares the actual temperature and humidity in the air conditioner return air pipe 220 with preset set values, and further calculates the cooling, heating, dehumidifying and humidifying requirements, and controls the input of the cold water valve on the cold water pipe 240 and the hot water valve on the hot water pipe 250 to realize constant temperature and humidity control. Similarly, the static pressure box 280 communicating the air conditioner return air pipe 220 and the return air inlet 213 is further arranged near the return air inlet 213, and the static pressure box 280 can optimize air distribution, stabilize system pressure and improve overall performance.

[0059] Further, referring to Figure 5 In the embodiment, the environmentally friendly workshop further comprises a return air column wall 140, the upper end of the return air column wall 140 is connected with the ceiling 110, the lower end of the return air column wall 140 is connected with the ground, and the return air column wall 140 is separated from the surrounding wall to form a return air shaft 150; the AHU air conditioning system further comprises a return air louver 223, the return air louver 223 is arranged at the lower part of the return air column wall 140 and communicates the production workshop 130 and the return air shaft 150; one end of the air conditioner return air pipe 220 extends into the return air shaft 150 after penetrating the ceiling 110 from the upper static pressure layer 120 of the ceiling. Here, the return air column wall 140 is specifically a color steel plate return air column wall 140, and in order to improve the return air efficiency, the return air louver 223 is specifically a three-sided return air louver 223. Specifically, the air in the production workshop 130 enters the air conditioner return air pipe 220 located at the top end of the return air shaft 150 after sequentially passing through the return air louver 223 and the return air shaft 150, and finally returns to the air conditioner air cabinet 210 through the air conditioner return air pipe 220. Here, for two separated production workshops 130, one main pipe of the air conditioner return air pipe 220 can be shared, and the main pipe of the air conditioner return air pipe 220 is further connected with two return air branch pipes, each return air branch pipe extends into the return air shaft 150 of each production workshop 130.

[0060] Please refer to Figure 1 and Figure 7In the embodiment, the hot water pipe 250 includes a hot water inlet pipe 251 and a hot water outlet pipe 252 connected with the air conditioning air cabinet 210 respectively, and the cold water pipe 240 includes a cold water inlet pipe 241 and a cold water outlet pipe 242 connected with the air conditioning air cabinet 210 respectively. The cold water inlet pipe 241 is provided with a turbine manual butterfly valve 243 and a Y-shaped filter 244, and the cold water outlet pipe 242 is provided with a turbine manual butterfly valve 243 and a cold water electric valve 245, and the cold water electric valve 245 is in information connection with the control system 600. The hot water inlet pipe 251 is provided with a turbine manual butterfly valve 243 and a Y-shaped filter 244, and the hot water outlet pipe 252 is provided with a turbine manual butterfly valve 243 and a hot water electric valve 253, and the hot water electric valve 253 is in information connection with the control system 600. The humidification pipe 260 is provided with a humidification electric valve 261, and the humidification electric valve 261 is in information connection with the control system 600, so that the control system 600 can control the proportion of the humidification electric valve 261 according to the calculated dehumidification and humidification demand, and realize automatic regulation and control of humidity. Here, the turbine manual butterfly valve 243 provided on the cold water inlet pipe 241 and the hot water inlet pipe 251 mainly plays a role in adjusting flow and controlling opening and closing, has the advantages of mechanical labor saving, reliable sealing, small size, light weight, saving installation space, and convenient maintenance, etc., and is the preferred for manual control of medium and large diameter pipes; the Y-shaped filter 244 mainly plays a role in intercepting impurities, protecting equipment, and maintaining stable operation of the system. The cold water electric valve 245 provided on the cold water outlet pipe 242 and the hot water electric valve 253 provided on the hot water outlet pipe 252 are all electric regulating valves, and after these electric regulating valves are in information connection with the control system 600, the control system 600 can control the corresponding electric regulating valve according to the calculated refrigeration and heating demand, and realize automatic regulation and control of temperature. In addition, the cold water outlet pipe 242 and the hot water outlet pipe 252 are both provided with a standby branch pipe, and the turbine manual butterfly valve 243 is also provided on the standby branch pipe, so that when the valve on the main pipe fails, the standby branch pipe can be used for control, so as to avoid affecting the normal operation of the pipe. In summary, the above settings are all conducive to realizing constant temperature and humidity control of the production workshop 130 under the regulation and control of the control system 600.

[0061] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An RTO (Regenerative Thermal Oxidizer) waste heat recovery and recycling energy-saving device for use in an environmentally friendly workshop, wherein the environmentally friendly workshop includes a floor, a top wall, peripheral walls, and a ceiling, the top wall, the ceiling, and the peripheral walls forming an upper static pressure layer, and the ceiling, the floor, and the peripheral walls forming a production workshop, characterized in that... The RTO hot fresh air waste heat recovery and recycling energy-saving device includes: An AHU (Air Conditioning Unit) air conditioning system includes an air conditioning unit, an air conditioning return duct, an air conditioning supply duct, a chilled water pipe, a hot water pipe, a humidifier pipe, and several diffusers. The air conditioning unit includes a first air inlet, a second air inlet, a return air inlet, and an air outlet. One end of the air conditioning return duct extends from the upper static pressure layer of the ceiling into the production workshop, and the other end of the air conditioning return duct is connected to the return air inlet. One end of the air conditioning supply duct is located in the upper static pressure layer of the ceiling and is connected to a diffuser installed on the ceiling, and the other end of the air conditioning supply duct is connected to the air outlet. RTO hot fresh air system includes a hot fresh air duct connected to the first air inlet and a hot fresh air electric valve provided on the hot fresh air duct. An outdoor fresh air system includes an outdoor fresh air duct connected to the second air inlet and an outdoor fresh air electric valve installed on the outdoor fresh air duct. The ventilation system includes ventilation ducts, indoor ventilation equipment, and outdoor ventilation equipment; the indoor ventilation equipment is installed in the static pressure layer above the ceiling and on the ceiling, and at least a portion of the indoor ventilation equipment is connected to the outdoor ventilation equipment through the ventilation ducts; The control system is connected to the AHU air conditioning system, the RTO hot fresh air system, the outdoor fresh air system, and the exhaust system respectively. The RTO hot fresh air waste heat recovery and recycling energy-saving device includes an RTO hot fresh air state and an outdoor fresh air state. In the RTO hot fresh air state, the RTO hot fresh air system is turned on and the outdoor fresh air system is turned off. In the outdoor fresh air state, the RTO hot fresh air system is turned off and the outdoor fresh air system is turned on. In either the RTO hot fresh air state or the outdoor fresh air state, the AHU air conditioning system is used to control the production workshop to be in a constant temperature and humidity state, and the exhaust system is used to control both the upper static pressure layer of the ceiling and the production workshop to be in a slightly negative pressure state.

2. The RTO hot fresh air waste heat recovery and recycling energy-saving device as described in claim 1, characterized in that, The RTO hot fresh air system also includes RTO equipment and manual hot fresh air valves; The hot fresh air generated by the RTO equipment enters the air conditioning unit through the hot fresh air duct and the first air inlet. The manual hot air valve is installed on the hot air duct and is located between the electric hot air valve and the first air inlet.

3. The RTO hot fresh air waste heat recovery and recycling energy-saving device as described in claim 2, characterized in that, The outdoor fresh air system also includes a fresh air rainproof louver and a fresh air manual valve; the fresh air rainproof louver is located at the end of the outdoor fresh air duct away from the air conditioning unit, and the fresh air manual valve is located on the outdoor fresh air duct and between the fresh air rainproof louver and the outdoor fresh air electric valve. The upper static pressure layer of the ceiling is also equipped with a first pressure probe; both the outdoor fresh air electric valve and the first pressure probe are connected to the control system.

4. The RTO hot fresh air waste heat recovery and recycling energy-saving device as described in claim 1, characterized in that, The indoor exhaust ventilation equipment includes a first exhaust louver, a second exhaust louver, and a workshop exhaust fan. The first exhaust louver and the workshop exhaust fan are both located in the upper static pressure layer of the ceiling, and the workshop exhaust fan is located below the first exhaust louver. The second exhaust louver is installed on the ceiling and is connected to the workshop exhaust fan. The outdoor ventilation equipment includes a static pressure layer exhaust fan. One end of the exhaust pipe extending out of the environmental protection workshop is connected to the static pressure layer exhaust fan, and the other end of the exhaust pipe located in the static pressure layer above the ceiling is connected to the first exhaust louver. The exhaust pipe is equipped with an electric exhaust valve and a manual exhaust valve, and the manual exhaust valve is located between the electric exhaust valve and the static pressure layer exhaust fan. The upper static pressure layer of the ceiling is also equipped with a first temperature probe, and both the exhaust fan of the static pressure layer and the first temperature probe are connected to the control system.

5. The RTO hot fresh air waste heat recovery and recycling energy-saving device as described in claim 4, characterized in that, The RTO hot fresh air waste heat recovery and recycling energy-saving device also includes a make-up air pressure valve, which is located on the surrounding wall at the intersection of the upper static pressure layer of the ceiling and the outside.

6. The RTO hot fresh air waste heat recovery and recycling energy-saving device as described in any one of claims 1 to 5, characterized in that, The air conditioning supply duct is equipped with a second temperature probe and a supply air check valve. The second temperature probe is located between the air outlet and the supply air check valve. The second temperature probe is connected to the control system.

7. The RTO hot fresh air waste heat recovery and recycling energy-saving device as described in claim 6, characterized in that, The diffuser is a plurality of diffusers, which are distributed at intervals on the ceiling; the air conditioning supply duct includes a main supply duct and a plurality of branch supply ducts, each diffuser is connected to the main supply duct through a branch supply duct, and each branch supply duct is equipped with an air volume regulating valve.

8. The RTO hot fresh air waste heat recovery and recycling energy-saving device as described in claim 6, characterized in that, The air conditioning return air duct is equipped with a third temperature probe, a first humidity probe, a first return air manual valve, and a second return air manual valve; the third temperature probe and the first humidity probe are respectively connected to the control system; the first return air manual valve is located near the return air inlet, and the second return air manual valve is located near the ceiling.

9. The RTO hot fresh air waste heat recovery and recycling energy-saving device as described in claim 8, characterized in that, The environmentally friendly workshop also includes a return air column wall, the upper end of which is connected to the ceiling, and the lower end of which is connected to the ground. The return air column wall and the surrounding walls form a return air shaft. The AHU air conditioning system also includes return air louvers, which are located at the lower part of the return air column wall and connect the production workshop and the return air shaft. One end of the air conditioning return air duct passes through the ceiling from the static pressure layer above the ceiling and extends into the return air shaft.

10. The RTO hot fresh air waste heat recovery and recycling energy-saving device as described in claim 6, characterized in that, The hot water pipe includes a hot water inlet pipe and a hot water outlet pipe respectively connected to the air conditioning unit; the cold water pipe includes a cold water inlet pipe and a cold water outlet pipe respectively connected to the air conditioning unit. The cold water inlet pipe is equipped with a turbine manual butterfly valve and a Y-type filter, and the cold water outlet pipe is equipped with the turbine manual butterfly valve and a cold water electric valve. The cold water electric valve is connected to the control system. The hot water inlet pipe is equipped with the turbine manual butterfly valve and the Y-type filter, and the hot water outlet pipe is equipped with the turbine manual butterfly valve and the hot water electric valve. The hot water electric valve is connected to the control system. The humidification pipe is equipped with a humidification electric valve, which is connected to the control system.

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