Pig house ventilation system combining positive pressure ventilation and negative pressure ventilation

Abstract

The utility model discloses a pigsty ventilation system combining positive pressure ventilation and negative pressure ventilation. The pigsty ventilation system comprises a water curtain unit, a control unit, a positive pressure fan unit, a negative pressure fan unit and a sensor unit. The sensor unit comprises an odor sensor, a temperature sensor and a humidity sensor, the odor sensor acquires odor concentration information, the temperature sensor acquires temperature information, and the humidity sensor acquires humidity information; the control unit is used for receiving the odor concentration information, the temperature information and the humidity information and then generating first instruction information, second instruction information and third instruction information. The positive-pressure fan unit and the negative-pressure fan unit are combined for ventilation, information such as temperature and humidity is obtained in real time through the sensor unit, the positive-pressure fan unit and the negative-pressure fan unit are driven to work, and therefore the temperature difference between the front portion and the rear portion of the hog house is balanced, sufficient ventilation of the hog house is guaranteed, and the quality of air in the hog house is good. The device can be widely applied to the technical field of livestock feeding equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of livestock breeding equipment, in particular to a pig house ventilation system combining positive pressure ventilation and negative pressure ventilation. Background Art

[0002] In the existing pig house ventilation system, ventilation easily causes temperature difference between the front and back of the pig house, and it is easy to over-ventilate or under-ventilate. When over-ventilated, the temperature in the house cannot be maintained or a large amount of cold source is required to maintain it; when under-ventilated, the exhaust gas in the house cannot be discharged well, resulting in poor air quality in the house, affecting breeding production. Utility Model Content

[0003] In view of this, the purpose of the embodiment of the utility model is to provide a pig house ventilation system that combines positive pressure ventilation and negative pressure ventilation, which can balance the temperature difference between the front and back of the pig house and ensure that the pig house is adequately ventilated and the air quality in the house is good.

[0004] The utility model embodiment provides a pig house ventilation system combining positive pressure ventilation and negative pressure ventilation, including a water curtain unit, a control unit, a positive pressure fan unit, a negative pressure fan unit and a sensor unit;

[0005] The sensor unit includes an odor sensor, a temperature sensor and a humidity sensor. The odor sensor is used to obtain odor concentration information in the pig house, the temperature sensor is used to obtain temperature information, and the humidity sensor is used to obtain humidity information;

[0006] The positive pressure fan unit comprises a first positive pressure fan and a second positive pressure fan, wherein the first positive pressure fan and the second positive pressure fan are both communicatively connected to the control unit;

[0007] The control unit is used to generate first instruction information, second instruction information and third instruction information after receiving the odor concentration information, the temperature information and the humidity information, the first instruction information is used to drive the first positive pressure fan and the second positive pressure fan to work in the first fan mode, the second instruction information is used to drive the negative pressure fan unit to work in the second fan mode, and the third instruction information is used to drive the water curtain unit to work.

[0008] Optionally, the temperature sensor includes an outdoor temperature sensor and an indoor temperature sensor, the outdoor temperature sensor is used to obtain outdoor temperature information, and the indoor temperature sensor is used to obtain indoor temperature information.

[0009] Optionally, the humidity sensor includes an outside humidity sensor and an inside humidity sensor, the outside humidity sensor is used to obtain outside humidity information, and the inside humidity sensor is used to obtain inside humidity information.

[0010] Optionally, the water curtain unit includes a front water curtain, a first side water curtain and a second side water curtain, the front water curtain is arranged on the first gable of the pig house, and the first side water curtain and the second side water curtain are respectively arranged on the first side and the second side of the pig house.

[0011] Optionally, the first positive pressure fan and the second positive pressure fan are symmetrically arranged on the first gable.

[0012] Optionally, the first positive pressure fan is connected to a first bag ventilation duct, and the second positive pressure fan is connected to a second bag ventilation duct.

[0013] Optionally, the first bag ventilation duct and the second bag ventilation duct are provided with a plurality of openings with gradually decreasing intervals from front to back.

[0014] Optionally, the sensor unit further includes a wind speed sensor, and the wind speed sensor is arranged below the opening.

[0015] Optionally, the system further comprises an alarm unit, and the alarm unit is connected to the control unit.

[0016] Optionally, the negative pressure fan unit includes a plurality of negative pressure fans, and the plurality of negative pressure fans are evenly arranged on the second gable of the pig house, and the first gable and the second gable are arranged opposite to each other.

[0017] The implementation of the utility model embodiment includes the following beneficial effects: the utility model embodiment provides a pig house ventilation system combining positive pressure ventilation and negative pressure ventilation, including a water curtain unit, a control unit, a positive pressure fan unit, a negative pressure fan unit and a sensor unit; the sensor unit includes an odor sensor, a temperature sensor and a humidity sensor, the odor sensor is used to obtain odor concentration information in the pig house, the temperature sensor is used to obtain temperature information, and the humidity sensor is used to obtain humidity information in the pig house; the positive pressure fan unit includes a first positive pressure fan and a second positive pressure fan, and the first positive pressure fan and the second positive pressure fan are both communicatively connected to the control unit; the control unit is used to generate a first instruction information, a second instruction information and a third instruction information after receiving the odor concentration information, the temperature information and the humidity information, the first instruction information is used to drive the first positive pressure fan and the second positive pressure fan to work in a first fan mode, the second instruction information is used to drive the negative pressure fan unit to work in a second fan mode, and the third instruction information is used to drive the water curtain unit to work. Ventilation is carried out by combining the first positive pressure fan, the second positive pressure fan and the negative pressure fan unit, and the temperature and humidity information are obtained in real time through the sensor unit to drive the first positive pressure fan, the second positive pressure fan and the negative pressure fan unit to work, thereby balancing the temperature difference between the front and back of the pig house, ensuring sufficient ventilation of the pig house and good air quality in the house. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural block diagram of a pig house ventilation system combining positive pressure ventilation and negative pressure ventilation provided by an embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a pig house ventilation system combining positive pressure ventilation and negative pressure ventilation provided by an embodiment of the utility model;

[0020] Figure 3 It is a cross-sectional view of a positive pressure fan arranged in a house provided by an embodiment of the utility model;

[0021] Figure 4 is a front view of the second gable side provided by an embodiment of the utility model;

[0022] Figure numerals: first positive pressure fan 1, first side water curtain 2, first bag ventilation duct 3, second positive pressure fan 4, front water curtain 5, second side water curtain 6, second bag ventilation duct 7, outdoor temperature and humidity probe 8, indoor temperature and humidity probe 9, odor sensor 10, negative pressure fan 11, pig house main body 12, pig pen 13. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present invention should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0025] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, unless otherwise specified, "one or more" means two or more.

[0026] Reference Figure 1 , the embodiment of the utility model provides a pig house ventilation system combining positive pressure ventilation and negative pressure ventilation, including a water curtain unit, a control unit, a positive pressure fan unit, a negative pressure fan unit and a sensor unit;

[0027] The sensor unit includes an odor sensor 10, a temperature sensor and a humidity sensor. The odor sensor 10 is used to obtain odor concentration information in the pig house, the temperature sensor is used to obtain temperature information, and the humidity sensor is used to obtain humidity information;

[0028] The positive pressure fan unit comprises a first positive pressure fan 1 and a second positive pressure fan 4, wherein the first positive pressure fan 1 and the second positive pressure fan 4 are both communicatively connected to the control unit;

[0029] The control unit is used to generate first instruction information, second instruction information and third instruction information after receiving the odor concentration information, the temperature information and the humidity information, the first instruction information is used to drive the first positive pressure fan 1 and the second positive pressure fan 4 to work in the first fan mode, the second instruction information is used to drive the negative pressure fan unit to work in the second fan mode, and the third instruction information is used to drive the water curtain unit to work.

[0030] It should be noted that the control method adopted by the control unit is an existing method.

[0031] Specifically, the pig house ventilation system is specifically composed of a water curtain unit, a control unit, a positive pressure fan unit, a negative pressure fan unit and a sensor unit. The sensor unit includes an odor sensor 10, a temperature sensor and a humidity sensor. The odor sensor 10 obtains the odor concentration information in the pig house, and transmits the odor concentration information to the control unit. The greater the odor concentration, the worse the air quality in the pig house. At this time, the control unit sends a corresponding first command signal to the first fan and the second fan, and sends a second command information to the negative pressure fan unit, so as to ensure the ventilation in the pig house, and then ensure the pigs. The air quality in the pig house; the temperature sensor sends the acquired temperature information to the control unit. When the temperature is too high, it means that the pig house needs to be cooled down. The control unit generates a third instruction information to the water curtain unit, thereby driving the water curtain unit to discharge water, and then cooling the pig house; the humidity sensor sends the acquired humidity information in the pig house to the control unit. When the humidity is too high, ventilation is performed through the first positive pressure fan 1, the second positive pressure fan 4 and / or the negative pressure fan unit to ensure that the humidity is appropriate. When the humidity is too low, water is discharged through the water curtain or the spray in the pig house is sprayed to ensure that the humidity in the pig house is appropriate.

[0032] In some optional embodiments, the specific ventilation mode of the pig house is: in summer, negative pressure ventilation is used as the main ventilation mode, and positive pressure ventilation is used as the auxiliary ventilation mode. In summer, the temperature is high, and the negative pressure fan of the negative pressure fan unit is required to form a higher wind speed, and the cold wind at the water curtain of the water curtain unit is pulled to form a longitudinal wind flow. After the first positive pressure fan 1 and the second positive pressure fan 4 absorb the cold air from the water curtain, they distribute the cold source through the openings on the air duct to balance the problem of low temperature near the water curtain and high temperature near the fan caused by long-distance longitudinal ventilation. In this mode, the higher the temperature, the more frequently the water curtain is opened, and the more negative pressure fans are opened. The higher the odor, the more negative pressure fans are opened. Humidity is associated with the water on the water curtain. Under the premise of suitable temperature, the water curtain, positive pressure fan and / or negative pressure fan are controlled by the control unit to limit the humidity within the preset humidity value.

[0033] In winter, positive pressure ventilation is mainly used, and negative pressure ventilation is auxiliary. In winter, positive pressure ventilation is mainly used. After the positive pressure fan obtains fresh air from the outside, it is distributed to the pig house through the openings on the first bag ventilation pipe 3 and the second bag ventilation pipe 7. The airflow with low wind speed not only provides fresh oxygen, but also dilutes the odor concentration in the house. At this time, only when the odor concentration in the house is too high and positive pressure ventilation can no longer be contained, the negative pressure fan will be turned on for ventilation to discharge the odor in the house.

[0034] In some optional embodiments, the temperature sensor includes an outdoor temperature sensor and an indoor temperature sensor, the outdoor temperature sensor is used to obtain outdoor temperature information, and the indoor temperature sensor is used to obtain indoor temperature information.

[0035] In some optional embodiments, the humidity sensor includes an outdoor humidity sensor and an indoor humidity sensor, the outdoor humidity sensor is used to obtain outdoor humidity information, and the indoor humidity sensor is used to obtain indoor humidity information.

[0036] Specifically, the outdoor temperature sensor and outdoor humidity sensor used in this embodiment are outdoor temperature and humidity probes 8, which can obtain outdoor temperature information and outdoor humidity information; the obtained outdoor temperature information and outdoor humidity information are transmitted to the control unit, and the control unit sets the winter ventilation mode or the summer ventilation mode according to the temperature value and the humidity value; in the winter ventilation mode, the first positive pressure fan 1 and the second positive pressure fan 4 are used as the main ventilation mode, and auxiliary ventilation is performed by the negative pressure fan unit, so as to ensure the air quality in the pig house in winter; in the summer ventilation mode, the negative pressure fan unit is used as the main ventilation mode, and auxiliary ventilation is performed by the first positive pressure fan 1 and the second positive pressure fan 4, so as to prevent the odor concentration in the pig house from being too high. The indoor temperature sensor and indoor humidity sensor used in this embodiment are indoor temperature and humidity probes 9, which can obtain indoor temperature information and indoor humidity information; the obtained indoor temperature information and indoor humidity information are transmitted to the control unit, and the control unit controls the water curtain, the first positive pressure fan 1, the second positive pressure fan 4 and the negative pressure fan unit according to the indoor temperature value and humidity value, so as to ensure that the house has suitable temperature and humidity.

[0037] In some optional embodiments, the water curtain unit includes a front water curtain 5, a first side water curtain 2 and a second side water curtain 6, the front water curtain 5 is arranged on the first gable of the pig house, and the first side water curtain 2 and the second side water curtain 6 are respectively arranged on the first side and the second side of the pig house.

[0038] Specifically, refer to Figure 2 Through the front water curtain 5, water can be discharged for cooling on the first gable in front of the pig house, and the cooled air can be transported into the pig house through the flowing air, so as to cool down the pig house when the temperature is too high; the first side water curtain 2 and the second side water curtain 6 are respectively arranged on the first side and the second side of the pig house, the first side water curtain 2 is arranged on the first side of the pig house, and the second side water curtain 6 is arranged on the second side of the pig house, so as to speed up the cooling of the pig house. When the temperature is too high in summer, the temperature in the pig house can be quickly lowered, so as to prevent the temperature in the pig house from being too high and causing stress reactions in the pigs.

[0039] In some optional embodiments, the first positive pressure fan 1 and the second positive pressure fan 4 are disposed symmetrically at the first gable.

[0040] In some optional embodiments, the first positive pressure fan 1 is connected to a first bag ventilation pipe 3 , and the second positive pressure fan 4 is connected to a second bag ventilation pipe 7 .

[0041] In some optional embodiments, the first bag ventilation tube 3 and the second bag ventilation tube 7 are sequentially provided with a plurality of openings with gradually decreasing intervals from front to back.

[0042] Specifically, refer to Figure 2-3 The pig house ventilation system is arranged on the pig house main body 12. The first positive pressure fan 1 and the second positive pressure fan 4 are installed symmetrically in the house at the first gable, and the first positive pressure fan 1 and the second positive pressure fan 4 are close to the first gable and fixed with a rack. Thus, the pig house can be ventilated to the maximum and most efficiently. The first positive pressure fan 1 is connected to the first bag ventilation pipe 3, and the second positive pressure fan 4 is connected to the second bag ventilation pipe 7. The first bag ventilation pipe 3 and the second bag ventilation pipe 7 both run through the entire pig house, thereby ensuring a good ventilation effect, and ventilation in various places in the pig house can be carried out in time. The first bag ventilation duct 3 and the second bag ventilation duct 7 are provided with a plurality of openings with gradually decreasing intervals from front to back. Since the wind speed in the first bag ventilation duct 3 and the second bag ventilation duct 7 gradually decreases from front to back, and a water curtain is arranged at one end and a negative pressure fan is arranged at the other end, the water curtain is often cool and the fan is hotter. More openings need to be distributed further back to ensure temperature balance. Therefore, a plurality of openings with gradually decreasing intervals are provided from front to back, thereby ensuring uniform ventilation in various places in the pig house and allowing the pigs in the pig pen 13 to breathe fresh air.

[0043] In some optional embodiments, the sensor unit further includes a wind speed sensor, and the wind speed sensor is disposed below the opening.

[0044] Specifically, the wind speed sensor can be set under each opening, or can be set at intervals, which is not limited here. The wind speed sensor is used to obtain the air outlet speed of the opening, thereby preventing uneven ventilation, or preventing the first bag ventilation pipe 3 and the second bag ventilation pipe 7 from being blocked, thereby preventing the space below the blocked air outlet opening from being ventilated in time.

[0045] In some optional embodiments, the system further includes an alarm unit connected to the control unit.

[0046] Specifically, when the temperature and humidity in the pig house are too high / too low, the odor concentration is too high for a long time, or a fire occurs, a timely alarm will be issued through the alarm unit.

[0047] In some optional embodiments, the negative pressure fan unit includes a plurality of negative pressure fans 11, and the plurality of negative pressure fans 11 are evenly arranged on the second gable of the pig house, and the first gable and the second gable are arranged opposite to each other.

[0048] Specifically, refer to Figure 4 A plurality of evenly spaced negative pressure fans 11 are arranged on the second gable. The plurality of negative pressure fans 11 work together to quickly extract the odor in the pig house, thereby forming a negative pressure in the house, and drawing the air from outside the house into the house to form a wind flow, thereby ensuring the air quality in the pig house.

[0049] In some optional embodiments, the first bag ventilation duct 3 in the pig house is constructed to supply air, and the negative pressure fan 11 on the second gable is used to draw air out. In the hot summer, negative pressure ventilation is mainly used, and the cold air at one end is sent to the house by using the positive pressure duct. Through the openings of different sizes and spacings, the front and back temperatures are balanced and the front and back temperature difference is reduced. In the cold winter, positive pressure ventilation is mainly used, and negative pressure ventilation is supplemented. The positive pressure duct is used to continuously deliver fresh air to the house to dilute the waste gas accumulated in the house. When the waste gas concentration in the house reaches the preset threshold, the negative pressure fan 11 is turned on for ventilation.

[0050] The implementation of the utility model embodiment includes the following beneficial effects: the utility model embodiment provides a pig house ventilation system combining positive pressure ventilation and negative pressure ventilation, including a water curtain unit, a control unit, a positive pressure fan unit, a negative pressure fan unit and a sensor unit; the sensor unit includes an odor sensor 10, a temperature sensor and a humidity sensor, the odor sensor 10 is used to obtain odor concentration information in the pig house, the temperature sensor is used to obtain temperature information, and the humidity sensor is used to obtain humidity information in the pig house; the positive pressure fan unit includes a first positive pressure fan 1 and a second positive pressure fan 4, and the first positive pressure fan 1 and the second positive pressure fan 4 are both communicatively connected to the control unit; the control unit is used to generate a first instruction information, a second instruction information and a third instruction information after receiving the odor concentration information, the temperature information and the humidity information, the first instruction information is used to drive the first positive pressure fan 1 and the second positive pressure fan 4 to work in a first fan mode, the second instruction information is used to drive the negative pressure fan unit to work in a second fan mode, and the third instruction information is used to drive the water curtain unit to work. Ventilation is performed by combining the first positive pressure fan 1, the second positive pressure fan 4 and the negative pressure fan unit, and the temperature and humidity information are obtained in real time through the sensor unit to drive the first positive pressure fan 1, the second positive pressure fan 4 and the negative pressure fan unit to work, thereby balancing the temperature difference between the front and back of the pig house, ensuring sufficient ventilation of the pig house and good air quality in the house.

[0051] In the description of this specification, the description with reference to the term "in a specific embodiment" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] The above is a specific description of the preferred implementation of the utility model, but the invention of the utility model is not limited to the described embodiments. Technical personnel familiar with the field can also make various equivalent deformations or substitutions without violating the spirit of the utility model. These equivalent deformations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A pig house ventilation system combining positive pressure ventilation and negative pressure ventilation, characterized in that: It includes a water curtain unit, a control unit, a positive pressure fan unit, a negative pressure fan unit and a sensor unit; The sensor unit includes an odor sensor, a temperature sensor and a humidity sensor. The odor sensor is used to obtain odor concentration information in the pig house, the temperature sensor is used to obtain temperature information, and the humidity sensor is used to obtain humidity information; The positive pressure fan unit comprises a first positive pressure fan and a second positive pressure fan, wherein the first positive pressure fan and the second positive pressure fan are both communicatively connected to the control unit; The control unit is used to generate first instruction information, second instruction information and third instruction information after receiving the odor concentration information, the temperature information and the humidity information, the first instruction information is used to drive the first positive pressure fan and the second positive pressure fan to work in the first fan mode, the second instruction information is used to drive the negative pressure fan unit to work in the second fan mode, and the third instruction information is used to drive the water curtain unit to work.

2. The pig house ventilation system according to claim 1, characterized in that: The temperature sensor includes an outdoor temperature sensor and an indoor temperature sensor. The outdoor temperature sensor is used to obtain outdoor temperature information, and the indoor temperature sensor is used to obtain indoor temperature information.

3. The pig house ventilation system according to claim 1, characterized in that: The humidity sensor includes an outside humidity sensor and an inside humidity sensor. The outside humidity sensor is used to obtain outside humidity information, and the inside humidity sensor is used to obtain inside humidity information.

4. The pig house ventilation system according to claim 1, characterized in that: The water curtain unit includes a front water curtain, a first side water curtain and a second side water curtain. The front water curtain is arranged on the first gable of the pig house, and the first side water curtain and the second side water curtain are respectively arranged on the first side and the second side of the pig house.

5. The pig house ventilation system according to claim 4, characterized in that: The first positive pressure fan and the second positive pressure fan are symmetrically arranged on the first gable.

6. The pig house ventilation system according to claim 1, characterized in that: The first positive pressure fan is connected to a first bag ventilation pipe, and the second positive pressure fan is connected to a second bag ventilation pipe.

7. The pig house ventilation system according to claim 6, characterized in that: The first bag ventilation duct and the second bag ventilation duct are sequentially provided with a plurality of openings with gradually decreasing intervals from front to back.

8. The pig house ventilation system according to claim 7, characterized in that: The sensor unit further includes a wind speed sensor, and the wind speed sensor is arranged below the opening.

9. The pig house ventilation system according to claim 1, characterized in that: The system further comprises an alarm unit connected to the control unit.

10. The pig house ventilation system according to claim 4, characterized in that: The negative pressure fan unit includes a plurality of negative pressure fans, and the plurality of negative pressure fans are evenly arranged on the second gable of the pig house, and the first gable and the second gable are arranged opposite to each other.

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