Energy-saving dehumidification system and method for hog house

Abstract

The invention discloses a pigsty energy-saving dehumidification system and method.The energy-saving dehumidification system comprises an air inlet channel, an air supply channel and an outdoor fresh air channel which communicate with a pigsty, and the air inlet channel and the outdoor fresh air channel both communicate with an air inlet of an air treatment box; an air outlet of the air treatment box is communicated with the air supply channel; a cooling part, a heat exchange part and a filter part are arranged in the air treatment box, the air inlet channel communicates with the cooling part, the cooling part communicates with the heat exchange part, the heat exchange part communicates with the outdoor fresh air channel, the heat exchange part communicates with the filter part, and the filter part communicates with the air supply channel. Heat exchange is achieved through indoor and outdoor temperature differences in different seasons, efficient dehumidification and cooling are conducted in the hog house, and the overall operation cost of the hog house is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of breeding, and in particular to an energy-saving and dehumidification system and method for a pig house. Background Art

[0002] In pig house farming, humidity control is an important part of ensuring the health of pigs and improving farming efficiency. Excessive humidity in pig houses can cause a series of problems. For example, high humidity environments are conducive to the reproduction of bacteria, viruses and fungi, increasing the incidence of respiratory diseases, digestive diseases and skin diseases. Humid environments are conducive to the survival of parasites such as mites and roundworms, leading to an increased risk of infection in pigs. In addition, high humidity in pig houses will accelerate the fermentation of feces and bedding, release more ammonia, irritate the respiratory mucosa of pigs, cause inflammation and even reduce immunity. Therefore, pig house farming must effectively control humidity. At present, pig house dehumidification mainly uses the condensation principle for dehumidification, which has a significant effect, but the equipment investment cost is high, the input-output ratio is not ideal, and the evaporator and condenser require energy consumption for cooling and heating. The air circulation volume of the pig house is large, the energy consumption is high, the operating cost is high, and the farming efficiency is reduced. Summary of the invention

[0003] The purpose of the present invention is to provide a pig house energy-saving dehumidification system and method in order to solve the above-mentioned problems.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0005] A pig house energy-saving dehumidification system comprises an air inlet channel, an air supply channel and an outdoor fresh air channel connected to the pig house, the air inlet channel and the outdoor fresh air channel are both connected to the air inlet of an air handling box, and the air outlet of the air handling box is connected to the air supply channel; a cooling element, a heat exchange element and a filter element are arranged in the air handling box, the air inlet channel is connected to the cooling element, the cooling element is connected to the heat exchange element, the heat exchange element is connected to the outdoor fresh air channel, the heat exchange element is connected to the filter element, and the filter element is connected to the air supply channel.

[0006] Preferably, fans are provided in the air inlet channel, the air supply channel and the outdoor fresh air channel.

[0007] Preferably, the temperature-reducing component includes a condenser, the air inlet passage is communicated with the air inlet of the condenser, and the air outlet of the condenser is communicated with the heat exchange component.

[0008] Preferably, a transfer box is provided between the condenser and the air inlet channel, and a drain port is provided on the transfer box for discharging condensed water formed after the hot air extracted from the pig house is condensed and cooled by the condenser through the drain port.

[0009] Preferably, the condenser is arranged obliquely in the air handling box, and the angle formed by the condenser and the transfer box is 30°-60°.

[0010] Preferably, the heat exchange element comprises a heat exchanger, the air inlet of the heat exchanger is respectively connected to the outdoor fresh air channel and the air outlet of the condenser, and the air outlet of the heat exchanger is connected to the filter element.

[0011] Preferably, the filter element comprises a filter box, the air inlet of the filter box is connected to the air outlet of the heat exchanger, the air inlet of the filter box is provided with a filter screen, and the air outlet of the filter box is connected to the air supply channel.

[0012] Preferably, the air supply duct comprises a main pipe and a branch pipe, a plurality of branch pipes are evenly extended outwards on both sides of the main pipe, and ventilation holes are provided on the branch pipes.

[0013] A working method of a pig house energy-saving dehumidification system comprises the following steps:

[0014] S1. When working in winter, the outdoor fresh air channel and the air supply channel are enabled at the same time. The outdoor fresh air channel sends the outdoor dry cold air into the heat exchange element to exchange heat with the hot air in the pig house in the air inlet channel. The cold and hot air are mixed after heat exchange and filtered through the filter element, and then passed into the pig house through the air supply channel;

[0015] S2. During summer operation, the hot air in the pig house is sent to the cooling element through the air supply duct for cooling and dehumidification treatment, and then filtered through the heat exchange element and the filter element, and then passed into the pig house through the air supply duct.

[0016] The beneficial effects of the present invention are:

[0017] The present invention utilizes the temperature difference between indoor and outdoor to mix indoor air and outdoor air for heat exchange in winter, and utilizes outdoor dry and low-temperature air to dry and dehumidify indoor high-temperature and humid air, thereby greatly reducing overall energy consumption and reducing the operating cost of pig house dehumidification in winter; in summer, a condenser is used to condense and dehumidify the air inside the pig house, and the humidity in the pig house is controllable, thereby improving the pig house environment, which has the advantages of reducing energy consumption, improving dehumidification efficiency, and improving the pig house environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 It is a schematic diagram of the overall equipment layout structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the air dehumidification state in a pig house in winter according to the present invention.

[0021] Figure 3 It is a schematic diagram of the air dehumidification state in a pig house in summer according to the present invention.

[0022] The following are the descriptions of the reference numerals:

[0023] 1 is the air supply channel, 2 is the air handling box, 3 is the air intake channel, 4 is the outdoor fresh air channel, 5 is the heat exchanger, 6 is the condenser, 7 is the transfer box, and 8 is the filter box. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-3 , the technical solution of the present invention is further explained:

[0025] Embodiment 1

[0026] like Figure 1-3 As shown, a pig house energy-saving dehumidification system includes an air inlet channel 3, an air supply channel 1 and an outdoor fresh air channel 4 connected to the pig house, the air inlet channel 3 and the outdoor fresh air channel 4 are both connected to the air inlet of the air handling box, and the air outlet of the air handling box is connected to the air supply channel. That is to say, the air inside the pig house is sent to the air handling box through the air inlet channel for drying, dehumidification and filtering, and then the treated air is sent to the pig house through the air supply channel, and in winter, the outdoor low-temperature dry air is synchronously sent to the air handling box through the outdoor fresh air channel to exchange heat with the high-temperature and humid air inside the pig house, thereby achieving dehumidification, and the mixed air is sent to the inside of the pig house through the air supply channel.

[0027] In some embodiments, fans are provided in the air inlet channel 3, the air supply channel 1 and the outdoor fresh air channel 4. That is, fans are arranged in each air supply channel to pump air.

[0028] By installing fans in the air inlet channel 3, air supply channel 1 and outdoor fresh air channel 4, the air in these channels can be ensured to flow effectively. The installation of fans can not only enhance air mobility, but also improve air processing efficiency to a certain extent, thereby improving the dehumidification effect of the entire system. This setting can effectively solve the problem of insufficient air flow in the pig house, ensure that the air can smoothly pass through each processing link, and achieve better energy-saving and dehumidification effects.

[0029] There are many types of fans, such as axial fans, centrifugal fans, etc. The specific choice can be determined according to the actual situation of the pig house and the design of the air handling box. The installation position and number of fans can also be adjusted as needed to ensure the best air flow effect. Furthermore, the fan can be equipped with a speed regulating device to adjust the air volume according to actual needs, thereby improving the flexibility and energy saving effect of the system.

[0030] Specifically, the air handling box 2 is provided with a cooling element, a heat exchange element and a filter element, the air inlet channel 3 is connected to the cooling element, the cooling element is connected to the heat exchange element, the heat exchange element is connected to the outdoor fresh air channel 4, the heat exchange element is connected to the filter element, and the filter element is connected to the air supply channel 1. That is to say, in this embodiment, the cooling element is used to cool and dehumidify the air inside the pig house, the heat exchange element is used to heat and dehumidify the indoor and outdoor air, and the filter element is used to filter the air; in other words, the cooling element is used to cool the hot air in the pig house, so that the moisture in the air condenses into water droplets, thereby reducing the humidity of the air. The function of the heat exchange element is to exchange heat between the outdoor fresh air and the air that has been cooled, thereby further reducing the humidity of the air. The function of the filter element is to filter the treated air, remove impurities and particulate matter in the air, and ensure that the air sent back to the pig house is clean.

[0031] In some embodiments, the cooling element includes a condenser 6, the air inlet channel 3 is connected to the air inlet of the condenser 6, and the air outlet of the condenser 6 is connected to the heat exchange element. In other words, the condenser is used to allow the hot air in the pig house to effectively enter the condenser for cooling treatment. In summer, the hot and humid air in the pig house is condensed and dehumidified through the condenser.

[0032] It should be noted that the condenser 6 can adopt a variety of structural forms, such as a finned condenser, a plate condenser, etc. These condenser structural forms can be selected according to specific usage requirements to achieve the best cooling effect. In addition, the material of the condenser can also be diversified, such as aluminum alloy, stainless steel, etc. These materials have good thermal conductivity and corrosion resistance, and can improve the service life and working efficiency of the condenser. As a preferred embodiment, the condenser can be provided with a plurality of condensation pipes to increase the heat exchange area, thereby improving the condensation efficiency.

[0033] In some embodiments, Figure 2 and Figure 3As shown, a transfer box 7 is provided between the condenser 6 and the air inlet channel 3, and a drain port is provided on the transfer box 7, so as to discharge the condensed water formed after the hot air extracted from the pig house is condensed and cooled by the condenser from the drain port. In other words, a drain port is designed on the transfer box, and the function of the transfer box is to collect the condensed water formed after the condenser is condensed and cooled, and discharge it through the drain port, which can effectively solve the problem of discharging the condensed water generated after the condenser is condensed, avoid the condensed water from being retained inside the system, and ensure the normal operation of the system and the dry environment of the pig house.

[0034] It should be noted that the transfer box 7 can be made of corrosion-resistant materials to ensure its durability in long-term use. The drain port can be designed to a standard size to facilitate connection to an external drainage system. The shape and size of the transfer box can be optimized according to the specific structure of the condenser and the air inlet channel to ensure that it can effectively collect and discharge condensed water.

[0035] Furthermore, a guide plate may be provided inside the transfer box 7 to guide the condensed water to flow quickly to the drain outlet to avoid water stagnation. As a preferred embodiment, the transfer box may be provided below the condenser to allow the condensed water to flow naturally to the drain outlet by gravity.

[0036] In some embodiments, Figure 2 and Figure 3 As shown, the condenser 6 is tilted in the air handling box, and the angle formed by the condenser and the transfer box is 30°-60°. That is to say, the condenser is tilted in the air handling box, and by setting the angle of 30°-60°, the condensed water can flow to the transfer box more easily, thereby improving the condensation efficiency and drainage effect. Specifically, the tilted design of the condenser allows the condensed water to flow into the transfer box more quickly under the action of gravity, avoiding the retention of water on the surface of the condenser, which not only improves the condensation efficiency, but also reduces the maintenance frequency of the condenser.

[0037] It should be noted that the tilt angle of the condenser 6 can be achieved by adjusting the mounting bracket of the condenser. The bracket can be designed to be adjustable so that the tilt angle of the condenser can be adjusted in different use environments to ensure that it is always within the range of 30°-60°.

[0038] As a preferred implementation, the bracket of the condenser 6 can adopt a spiral adjustment device, and the height of the bracket can be changed by rotating the screw, thereby adjusting the inclination angle of the condenser. In addition, a guide plate can be set between the condenser and the transfer box to further guide the condensed water to flow to the transfer box to prevent the condensed water from being retained in other parts.

[0039] Specifically, Figure 2 and Figure 3As shown, the heat exchange element includes a heat exchanger 5, the air inlet of the heat exchanger 5 is respectively connected to the outdoor fresh air channel 4 and the air outlet of the condenser 6, and the air outlet of the heat exchanger 5 is connected to the filter element. In other words, the air inlet of the heat exchanger is respectively connected to the outdoor fresh air channel and the air outlet of the condenser, so that the heat exchange process between the outdoor fresh air and the air after condensation treatment can be realized. The air outlet of the heat exchanger is connected to the filter element, so that the air after heat exchange treatment can be further filtered.

[0040] It should be noted that the heat exchanger 5 can be a plate heat exchanger, a shell and tube heat exchanger or other types of heat exchangers. The filter element can be arranged in the air handling box or independently. Therefore, the combined use of the heat exchanger and the filter element can effectively improve the heat exchange and filtering effect of the air, and ensure the cleanliness and suitable temperature of the air in the pig house.

[0041] Specifically, Figure 2 and Figure 3 As shown, the filter element includes a filter box 8, the air inlet of the filter box 8 is connected to the air outlet of the heat exchanger 5, the air inlet of the filter box 8 is provided with a filter screen, and the air outlet of the filter box 8 is connected to the air supply channel. In other words, the air inlet of the filter box is provided with a filter screen, and the air outlet of the filter box is connected to the air supply channel, which ensures that the air discharged from the heat exchanger is processed by the filter screen before entering the air supply channel, removes impurities in the air, ensures that the air entering the pig house is cleaner, reduces the impact of impurities in the air on the health of the pigs, helps to control the air quality in the pig house, and thus improves the breeding efficiency.

[0042] It should be noted that the filter box 8 can be made of a variety of materials and structural forms. For example, the filter box can be made of metal or plastic to ensure its durability and corrosion resistance. The filter screen can be detachable and cleanable for easy maintenance and replacement. The mesh size of the filter screen can be selected as needed to ensure that impurities in the air can be effectively filtered. In addition, the shape and size of the filter box can be adjusted according to actual needs to adapt to different installation environments and space requirements.

[0043] Specifically, Figure 1 As shown, the air supply duct includes a main pipe and a branch pipe, and a plurality of branch pipes are evenly extended outward on both sides of the main pipe, and vents are provided on the branch pipes. In other words, by setting a plurality of branch pipes inside the pig house, the air can be evenly distributed in the pig house, solving the problem of uneven air distribution; specifically, the main pipe can be installed in the central position of the pig house, and the branch pipes evenly extended outward on both sides can cover the space of the entire pig house. The vents on the branch pipes can be adjusted according to the actual needs of the pig house to ensure even distribution of air.

[0044] As a preferred embodiment, the ventilation openings may be designed to be adjustable so as to adjust the ventilation volume according to different seasons and environmental conditions.

[0045] Embodiment 2

[0046] like Figure 1-3 As shown, a working method of a pig house energy-saving dehumidification system comprises the following steps:

[0047] S1. When working in winter, the outdoor fresh air channel and the air supply channel are enabled at the same time. The outdoor fresh air channel sends outdoor dry cold air into the heat exchanger to exchange heat with the hot air in the pig house in the air inlet channel. The cold and hot air are mixed after heat exchange and filtered through the filter element and then passed into the pig house through the air supply channel; that is to say, when the pig house is dehumidified in winter, the air inlet channel and the outdoor fresh air channel are opened at the same time, and the external fresh air and the air in the pig house are drawn into the heat exchanger for heat exchange, and then filtered through the filter box and integrated into the pig house through the air supply channel. When the system is running in winter, the condenser is not enabled, and the condenser is only used as a channel.

[0048] S2. When working in summer, the hot air in the pig house is sent to the cooling element through the air supply channel for cooling and dehumidification, and then filtered through the heat exchange element and filter element, and then passed into the pig house through the air supply channel. That is to say, when the pig house is dehumidified in summer, the air inlet channel is opened, and the air in the pig house is condensed and dehumidified through the condenser, and then sent into the pig house through the heat exchanger channel and the air supply channel. When the system is running in summer, the outdoor fresh air channel and the heat exchanger are not enabled, and the heat exchanger is only used as a channel.

[0049] The present invention effectively controls the humidity in the pig house by adopting different air treatment methods in winter and summer. In winter, dry cold air is introduced through the outdoor fresh air channel to perform heat exchange with the hot air in the pig house. The mixed air is filtered and sent into the pig house to reduce the humidity. In summer, the hot air in the pig house is sent to the cooling element through the air supply channel for cooling and dehumidification treatment, and then sent back to the pig house after being treated by the heat exchange element and the filter element, thereby achieving a dehumidification effect. Through these two working modes in different seasons, the problem of excessive humidity in the pig house can be effectively solved, ensuring the health of the pigs and the breeding efficiency.

[0050] Specifically, when working in winter, the outdoor dry cold air is introduced into the heat exchanger through the outdoor fresh air channel, and heat is exchanged with the hot air in the pig house in the air inlet channel. The mixed air is filtered by the filter element and then introduced into the pig house through the air supply channel. This can effectively reduce the humidity in the pig house and prevent the high humidity environment from harming the health of the pigs.

[0051] In summer, the hot air in the pig house is sent to the cooling element through the air supply channel for cooling and dehumidification. The air after cooling and dehumidification is further processed by the heat exchange element and the filter element, and finally sent to the pig house through the air supply channel. This process can effectively process the humid air in the pig house, achieve the effect of dehumidification, and ensure the air quality in the pig house.

[0052] The present invention can effectively control the humidity in the pig house in different seasons through two different air treatment methods in winter and summer, which can not only reduce the equipment investment cost, but also reduce energy consumption and improve breeding efficiency. Especially in summer, through cooling and dehumidification treatment, the humidity in the pig house can be significantly reduced, the breeding risk of bacteria, viruses and parasites can be reduced, and the health of the pigs can be guaranteed.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A pig house energy-saving dehumidification system, characterized in that: It includes an air inlet channel, an air supply channel and an outdoor fresh air channel connected to the pig house, the air inlet channel and the outdoor fresh air channel are both connected to the air inlet of the air handling box, and the air outlet of the air handling box is connected to the air supply channel; a cooling component, a heat exchange component and a filter component are arranged in the air handling box, the air inlet channel is connected to the cooling component, the cooling component is connected to the heat exchange component, the heat exchange component is connected to the outdoor fresh air channel, the heat exchange component is connected to the filter component, and the filter component is connected to the air supply channel.

2. The pig house energy-saving dehumidification system according to claim 1, characterized in that: Fans are provided in the air inlet channel, the air supply channel and the outdoor fresh air channel.

3. The pig house energy-saving and dehumidification system according to claim 1, characterized in that: The cooling element comprises a condenser, the air inlet passage is communicated with the air inlet of the condenser, and the air outlet of the condenser is communicated with the heat exchange element.

4. The pig house energy-saving dehumidification system according to claim 3, characterized in that: A transfer box is arranged between the condenser and the air inlet channel, and a drain port is arranged on the transfer box for discharging condensed water formed after the hot air extracted from the pig house is condensed and cooled by the condenser through the drain port.

5. The pig house energy-saving dehumidification system according to claim 4, characterized in that: The condenser is arranged obliquely in the air handling box, and the angle formed by the condenser and the transfer box is 30°-60°.

6. The pig house energy-saving dehumidification system according to claim 3, characterized in that: The heat exchange element comprises a heat exchanger, the air inlet of the heat exchanger is respectively connected with the outdoor fresh air channel and the air outlet of the condenser, and the air outlet of the heat exchanger is connected with the filter element.

7. The pig house energy-saving dehumidification system according to claim 6, characterized in that: The filter element comprises a filter box, the air inlet of the filter box is connected to the air outlet of the heat exchanger, the air inlet of the filter box is provided with a filter screen, and the air outlet of the filter box is connected to the air supply channel.

8. The pig house energy-saving dehumidification system according to claim 7, characterized in that: The air supply duct comprises a main pipe and a branch pipe. A plurality of branch pipes are evenly extended outwards on both sides of the main pipe, and ventilation holes are provided on the branch pipes.

9. The working method of the pig house energy-saving dehumidification system according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. When working in winter, the outdoor fresh air channel and the air supply channel are enabled at the same time. The outdoor fresh air channel sends the outdoor dry cold air into the heat exchange element to exchange heat with the hot air in the pig house in the air inlet channel. The cold and hot air are mixed after heat exchange and filtered through the filter element, and then passed into the pig house through the air supply channel; S2. During summer operation, the hot air in the pig house is sent to the cooling element through the air supply duct for cooling and dehumidification treatment, and then filtered through the heat exchange element and the filter element, and then passed into the pig house through the air supply duct.

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