Energy-saving oil smoke exhaust unit control system

Abstract

The utility model provides an energy-saving oil smoke exhaust unit control system, which relates to the technical field of oil smoke exhaust and comprises indoor fans arranged in independent rooms and used for extracting oil smoke; the ventilation pipelines are connected with an indoor fan, and the tail ends of all the ventilation pipelines are converged and connected with a main flue; the centralized range hood group is connected with the main flue and exhausts oil fume outwards; and the air exhaust calculation module is arranged between the main flue and the centralized range hood group, is electrically connected with each indoor fan and is used for reading the air exhaust quantity signals of each indoor fan and adding the air exhaust quantity signals so as to control the air exhaust quantity of the centralized range hood group. However, after long-time use, the concentration of the oil smoke in the oil smoke pipeline is too high, the sensor is blocked, the pressure sensor fails, and the situation that the oil smoke exhaust fan on the roof exhausts more or less smoke is caused is solved.

Description

Technical Field

[0001] This utility model mainly relates to the field of fume exhaust technology, specifically to an energy-saving fume exhaust unit control system. Background Technology

[0002] For this type of exhaust fan used for rooftop kitchen exhaust, pressure sensors are normally installed on the duct to control the appropriate duct pressure. However, due to the special nature of kitchen exhaust, excessive concentration of grease in the exhaust duct can cause the sensor to become clogged, leading to pressure sensor failure. This results in abnormal pressure changes in the duct, making it impossible to determine the normal pressure range, and causing either over-exhausting or under-exhausting.

[0003] If the roof exhaust fan blows too much air, it will lead to energy waste; if the roof exhaust fan blows too little air, the indoor exhaust end will not be able to extract the fumes in time.

[0004] It should be noted that the above content falls within the scope of the inventor's technical knowledge. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0005] 1. The technical problem to be solved by the utility model:

[0006] This utility model provides an energy-saving control system for oil fume exhaust fans, which solves the technical problems existing in the background art.

[0007] 2. Technical Solution:

[0008] To achieve the above objectives, the technical solution provided by this utility model is: an energy-saving oil fume exhaust fan control system, comprising...

[0009] Indoor fans are installed in each individual room to extract cooking fumes.

[0010] The ventilation ducts are connected to the indoor fan, and the ends of all the ventilation ducts converge and connect to the main flue.

[0011] A centralized fume extraction unit is connected to the main flue and exhausts fumes to the outside.

[0012] The exhaust calculation module is located between the main flue and the centralized range hood unit. It is electrically connected to each indoor fan, reads the air volume signal of each indoor fan and adds them together, thereby controlling the exhaust volume of the centralized range hood unit.

[0013] During installation, indoor fans can be installed in different kitchens. When the indoor fans are working, the extracted fumes enter the main flue through the ventilation ducts. Simultaneously, the airflow information is transmitted to the exhaust calculation module. After reading the airflow of each indoor fan, the exhaust calculation module adds them together to calculate the required preset exhaust volume for the centralized range hood unit. This preset exhaust volume signal is then transmitted to the centralized range hood unit. The exhaust volume of the centralized range hood unit must be greater than the sum of the extraction volumes of each indoor fan. The preset exhaust volume can be set in advance. At this time, the centralized range hood unit can effectively and quickly exhaust the fumes in the main flue. Furthermore, since no sensors are installed in the main flue, there will be no pressure sensor malfunction, thus preventing situations where the centralized range hood unit's exhaust volume is too small, resulting in inadequate fume extraction, or too large, leading to resource waste.

[0014] Furthermore, the indoor fan includes a range hood and an air purifier.

[0015] Furthermore, an electric fume valve is installed between the ventilation duct and the main flue.

[0016] Furthermore, the electric fume valve is electrically connected to the kitchen control module and the indoor fan, and the kitchen control module is electrically connected together and connected to the exhaust calculation module.

[0017] Furthermore, the centralized fume extraction unit is connected to an exhaust purifier.

[0018] Furthermore, the indoor fan is equipped with a multi-position switch.

[0019] Furthermore, the exhaust calculation module controls the exhaust volume of the centralized range hood unit to be equal to 1.1 times the sum of the exhaust volumes of all indoor fans.

[0020] 3. Beneficial effects:

[0021] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0022] This utility model is reasonably designed. It uses an exhaust calculation module to add up the air volume of all indoor fans and controls the exhaust volume of the centralized range hood unit according to a preset ratio. This ensures that the exhaust volume of the centralized range hood unit is greater than the sum of the air volumes of all indoor fans, thus guaranteeing a better exhaust effect. Furthermore, the absence of sensors prevents errors in exhaust volume calculation due to the presence of fumes.

[0023] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0024] Figure 1 This is a structural block diagram of the present invention.

[0025] Figure label:

[0026] 1. Indoor fan; 11. Range hood; 12. Exhaust purifier; 2. Ventilation duct; 3. Main flue; 4. Centralized range hood unit; 41. Exhaust purifier; 21. Electric fume valve; 22. Kitchen control module; 5. Exhaust calculation module. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] It should be noted that structures not described in this invention do not involve the design points and improvement directions of this invention, and can all be achieved using existing technologies known to those skilled in the art. Example

[0032] See attached document Figure 1 An energy-saving control system for kitchen exhaust fans, including

[0033] Indoor fan 1 is installed in each individual room to extract cooking fumes;

[0034] Ventilation duct 2 is connected to indoor fan 1, and the ends of all ventilation ducts 2 converge and connect to the main flue 3;

[0035] The centralized fume extraction unit 4 is connected to the main flue 3 and exhausts fumes to the outside.

[0036] The exhaust calculation module 5 is located between the main flue 3 and the centralized range hood 4. It is electrically connected to each indoor fan 1, reads the air volume signal of each indoor fan 1 and adds them together, thereby controlling the exhaust volume of the centralized range hood 4.

[0037] During installation, indoor fans 1 can be installed in different kitchens, while the centralized range hood unit 4 can be installed on the roof of the building. When the indoor fans 1 are working, the fumes they extract will enter the main flue 3 through the ventilation duct 2. At the same time, the air volume information will be transmitted to the exhaust calculation module 5 through the transmission line. After reading the air volume of each indoor fan 1, the exhaust calculation module 5 will add them together to calculate the required preset exhaust volume of the centralized range hood unit 4. The preset exhaust volume signal will then be transmitted to the centralized range hood unit 4. The exhaust volume of the centralized range hood unit 4 must be greater than the sum of the air volumes extracted by each indoor fan 1. The preset exhaust volume can be set in advance. At this time, the centralized range hood unit 4 can effectively and quickly exhaust the fumes in the main flue 3. Since no sensors are installed in the main flue 3, there will be no pressure sensor failure. Therefore, the situation of insufficient exhaust volume of the centralized range hood unit 4 leading to failure to exhaust fumes properly, or excessive exhaust volume of the centralized range hood unit 4 leading to resource waste, will not occur.

[0038] It should be noted that the electrical connection in this application refers to existing technical solutions such as connection via signal cable, wireless device connection via Bluetooth, or communication connection, as long as signal reception and transmission can be guaranteed.

[0039] The indoor fan 1 includes a range hood 11 and an exhaust purifier 12. The range hood 11 extracts kitchen fumes, and the exhaust purifier 12 pre-purifies the kitchen fumes. After the range hood 11 is turned on, the air volume is transmitted to the exhaust calculation module 5 through the line.

[0040] An electric fume valve 21 is provided between the ventilation duct 2 and the main flue 3. The electric fume valve 21 opens and closes as the indoor fan 1 is turned on, thereby improving the exhaust efficiency of the centralized fume hood 4 and preventing the centralized fume hood 4 from exhausting the ventilation duct 2 of the indoor fan 1 when it is not turned on.

[0041] The electric fume valve 21 is electrically connected to the indoor fan 1 and the kitchen control module 22. The kitchen control module 22 is electrically connected to the exhaust calculation module 5. The kitchen control module 22 can read the on / off status of the indoor fan 1 and the electric fume valve 21, and can directly read the air volume of each indoor fan 1. After reading, the data is sent to the exhaust calculation module 5.

[0042] The centralized fume extraction unit 4 is connected to the exhaust purifier 41, which can purify the fumes in the main flue 3 before they are discharged through the centralized fume extraction unit 4.

[0043] The indoor fan 1 is equipped with a multi-position switch, which can adjust the air volume of the indoor fan 1, and the different air volume values ​​will be transmitted to the exhaust calculation module 5 for calculation.

[0044] The exhaust calculation module 5 controls the exhaust volume of the centralized range hood 4 to be equal to 1.1 times the sum of the extraction volumes of all indoor fans 1. In this embodiment, after reading the sum of the extraction volumes of the indoor fans 1, the exhaust calculation module 5 calculates that the exhaust volume of the centralized range hood 4 is approximately 1.1 times its sum, and then issues a control command to the centralized range hood 4. Of course, it should be noted that the exhaust calculation module 5 can adjust the multiplier of the centralized range hood 4 according to the actual situation to ensure that the exhaust volume of the centralized range hood 4 is greater than the sum of the extraction volumes of each indoor fan 1. Furthermore, it should be noted that the module functions in this system can all be implemented using existing technology, and the specific circuit schemes will not be elaborated here.

[0045] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An energy-saving control system for a fume exhaust fan unit, characterized in that: include Indoor fans (1) are installed in each individual room to extract cooking fumes; Ventilation duct (2) is connected to indoor fan (1), and the ends of all the ventilation ducts (2) converge and connect to the main flue (3); The centralized fume extraction unit (4) is connected to the main flue (3) and discharges fumes to the outside; The exhaust calculation module (5) is located between the main flue (3) and the centralized fume hood (4), and is electrically connected to each indoor fan (1). It reads the exhaust volume signal of each indoor fan (1) and adds them together, thereby controlling the exhaust volume of the centralized fume hood (4).

2. The energy-saving fume exhaust fan control system according to claim 1, characterized in that: The indoor fan (1) includes a range hood (11) and an air purifier (12).

3. The energy-saving fume exhaust fan control system according to claim 1, characterized in that: An electric fume valve (21) is provided between the ventilation duct (2) and the main flue (3).

4. The energy-saving fume exhaust fan control system according to claim 3, characterized in that: The electric fume valve (21) is electrically connected to the indoor fan (1) and the kitchen control module (22). The kitchen control module (22) is electrically connected together and connected to the exhaust calculation module (5).

5. The energy-saving fume exhaust fan control system according to claim 1, characterized in that: The centralized fume extraction unit (4) is connected to the exhaust purifier (41).

6. The energy-saving fume exhaust fan control system according to claim 1, characterized in that: The indoor fan (1) is equipped with a multi-position switch.

7. The energy-saving fume exhaust fan control system according to claim 1, characterized in that: The exhaust calculation module (5) controls the exhaust volume of the centralized fume hood (4) to be equal to the sum of the exhaust volumes of all indoor fans (1) by 1.1 times.

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