Winter indoor deodorization air recycling system
By designing a dehumidification system using outdoor cold air in the sewage treatment production workshop, the problems of heating and humidity in winter are solved, and the recycling of deodorant air and the reduction of heating energy consumption are achieved.
Patent Information
- Application Number
- CN202421769969.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-07-25
AI Technical Summary
Sewage treatment production workshops in cold northern areas require a lot of energy to keep heating in winter. At the same time, the humidity rises sharply due to air replacement, which affects the heating effect and equipment operation.
A winter indoor deodorizing air reuse system is designed, using outdoor cold air as a refrigeration medium, dehumidification function is achieved through the air-cooled cooling system, and intelligent automatic control is achieved by controlling the temperature of antifreeze coolant.
The recycling of deodorized air is realized, which reduces heating energy consumption, reduces system energy consumption, improves processing capacity, and facilitates maintenance and intelligent control.
Smart Images
Figure CN222480665U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a winter indoor deodorizing air recycling system, belonging to the field of ventilation technology for sewage treatment workshops. Background Art
[0002] At present, production workshops in cold areas in northern my country consume a large amount of electricity, gas and other energy every year to meet the basic heating needs of production workshops. In the production process of sewage treatment, sludge resource utilization, etc., some workshops will produce toxic and harmful gases such as hydrogen sulfide. In order to avoid the enrichment of toxic and harmful gases and cause harm, the workshop air needs to be replaced with the outside air to reduce the concentration of harmful gases to a safe range. Production workshops usually use deodorization equipment through negative pressure suction to purify toxic and harmful gases inside the equipment, and then discharge them to the outdoor atmosphere through the emission tower after meeting the standards. At the same time, the temperature of the production workshop also decreases with the entry of cold air from the outside, causing the humidity in the workshop to rise sharply, seriously affecting the heating effect and the normal operation of the equipment. At this stage, large-scale dehumidification equipment is generally used to ensure the humidity balance of the workshop. Dehumidification equipment generally uses compressor refrigeration to dehumidify. The stronger the processing capacity, the higher the energy consumption. Therefore, it is particularly important to use a more energy-saving and effective dehumidification equipment. Summary of the invention
[0003] The utility model aims to provide a winter indoor deodorizing air recycling system, which can recycle the deodorizing air in sewage treatment workshops in cold winter areas, thereby achieving the purpose of energy saving and consumption reduction in winter heating.
[0004] The purpose of the utility model is achieved in this way. A winter indoor deodorizing air recycling system comprises an induced draft fan, a deodorizing device, a shell and tube condenser, a closed cooling tower and a coolant circulation pump. The air outlet end of the induced draft fan and the air inlet end of the deodorizing device are both connected to the production workshop. The deodorizing device has two air outlet ends: one is a 50% standard gas discharge end, and the other is a 50% standard gas discharge end with indoor temperature. The air inlet end of the induced draft fan is connected to the air outlet end of the shell and tube condenser, and the air inlet end of the shell and tube condenser is connected to the discharge end with indoor temperature of the deodorizing device; the coolant circulation pump and the closed cooling tower are connected. The closed cooling tower adopts antifreeze as a heat exchange medium and uses outside air to reduce the temperature of the antifreeze coolant to the required temperature. The liquid outlet end of the closed cooling tower is connected to the liquid inlet end of the shell and tube condenser. The liquid outlet end of the high-temperature coolant after heat exchange in the shell and tube condenser is connected to the coolant circulation pump. The other end of the shell and tube condenser is also provided with a condensed water discharge end.
[0005] The original dehumidification equipment generally uses compressor refrigeration for cooling and dehumidification, which inevitably increases energy consumption. Considering that the outdoor temperature in northern regions is low in winter, outdoor cold air can effectively replace compressor refrigerant for refrigeration. Therefore, this system uses outdoor cold air as the refrigeration medium and realizes the dehumidification function through the air-cooled cooling system. And by controlling the temperature of the antifreeze coolant, the workshop dehumidification system can achieve intelligent automatic control.
[0006] Compared with the prior art, the advantages of the utility model are: 1. No compressor, low system energy consumption. 2. Strong system processing capacity. 3. Wide application range. 4. Easy to repair and maintain. 5. Easy to realize intelligent control. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] The utility model will be further described below in conjunction with the accompanying drawings.
[0008] Figure 1 It is a schematic diagram of the system structure of the utility model.
[0009] In the figure: 1. Production workshop; 2. Deodorization equipment; 3. Shell and tube condenser; 4. Coolant circulation pump; 5. Closed cooling tower; 6. induced draft fan. DETAILED DESCRIPTION
[0010] like Figure 1 As shown, the working process of the utility model is as follows:
[0011] A winter indoor deodorizing air recycling system, such as Figure 1 As shown, it includes an induced draft fan 6, a deodorizing device 2, a shell-and-tube condenser 3, a closed cooling tower 5 and a coolant circulation pump 4. The air outlet end of the induced draft fan 6 and the air inlet end of the deodorizing device 2 are both connected to the production workshop 1. The deodorizing device 2 has two air outlet ends: one is a 50% qualified gas discharge end, and the other is a 50% qualified gas discharge end with room temperature. The air inlet end of the induced draft fan 6 is connected to the air outlet end of the shell-and-tube condenser 3, and the air inlet end of the shell-and-tube condenser 3 is connected to the production workshop 1. The deodorizing device 2 is connected with a discharge end 7 with indoor temperature; the coolant circulation pump 4 and the closed cooling tower 5 are connected, the closed cooling tower 5 uses antifreeze as a heat exchange medium, and uses the outside air to reduce the temperature of the antifreeze coolant to the required temperature, the liquid outlet end of the closed cooling tower 5 is connected with the liquid inlet end of the shell and tube condenser 3, the liquid outlet end of the high-temperature coolant after heat exchange of the shell and tube condenser is connected with the coolant circulation pump, and the other end of the shell and tube condenser is also provided with a condensed water discharge end 8.
[0012] Air-cooled condensing system process:
[0013] The closed cooling tower 5 uses antifreeze as a heat exchange medium, and uses the outside air to reduce the temperature of the antifreeze coolant to the required temperature. By adjusting the speed of the coolant circulation pump 4 and the speed of the cooling fan at the top of the closed cooling tower 5, the temperature of the antifreeze coolant is controlled within a constant range to achieve the cooling process of the antifreeze coolant. Under the action of the coolant circulation pump 4, the antifreeze coolant after cooling enters the tube-and-tube condenser 3 from the closed cooling tower 5, exchanges heat with the clean, moist and hot air discharged from the deodorization equipment 2, and then returns to the closed cooling tower 5 for cooling, thereby achieving alternating cold and hot cycles and avoiding freezing of the system and changes in efficiency due to excessive temperature differences between day and night. Because the system uses air cooling instead of a compressor to achieve refrigeration, there is no other additional energy consumption in the system, and energy consumption is greatly reduced.
[0014] Workshop air circulation process:
[0015] First, after the deodorization equipment 2 collects and treats the toxic and harmful gases generated by the production workshop 1, about 50% of the gas is discharged into the atmosphere through the discharge tower of the deodorization equipment 2, and the remaining 50% of the air enters the shell-and-tube condenser 3 for condensation and dehumidification. The condensed water is discharged from the shell-and-tube condenser 3 to the sewer, completing the dehumidification and dehydration process. At this time, the temperature and humidity of the air sucked into the shell-and-tube condenser 3 are simultaneously reduced. The air at this time is reintroduced into the production workshop 1 through the induced draft fan 6 for secondary recycling, and the remaining 50% of the air is supplemented with fresh cold air from the outside, thereby reducing the heating energy consumption required for the production workshop 1. Secondly, by real-time monitoring of the toxic and harmful gases and humidity in the production workshop 1, adjusting the ratio of the air discharged from the deodorization equipment 2 to the outside, and further adjusting the parameters of the air cooling system, the air recycling efficiency of the production workshop 1 can be effectively improved.
Claims
1. A winter indoor deodorizing air recycling system, comprising an induced draft fan, a deodorizing device, a shell-and-tube condenser, a closed cooling tower and a coolant circulation pump, characterized in that: The air outlet end of the induced draft fan and the air inlet end of the deodorization equipment are both connected to the production workshop. The deodorization equipment has two air outlet ends: one is the discharge end of 50% qualified gas, and the other is the discharge end of 50% qualified gas with indoor temperature. The air inlet end of the induced draft fan is connected to the air outlet end of the shell and tube condenser, and the air inlet end of the shell and tube condenser is connected to the discharge end of the deodorization equipment with indoor temperature; the coolant circulation pump and the closed cooling tower are connected. The closed cooling tower uses antifreeze as the heat exchange medium and uses the outside air to reduce the temperature of the antifreeze coolant to the required temperature. The liquid outlet end of the closed cooling tower is connected to the liquid inlet end of the shell and tube condenser. The liquid outlet end of the high-temperature coolant after heat exchange in the shell and tube condenser is connected to the coolant circulation pump. The other end of the shell and tube condenser is also provided with a condensed water discharge end.