JP2018166484A - Chicken house - Google Patents

Abstract

To provide a chicken house with a heat exchanger in which a filter is hard to be clogged.SOLUTION: A chicken house includes a rectangular floor surface 2, a sidewall 3a being present in a rectangular long side, a gable wall being present in a rectangular short side, a roof for covering up the floor surface 2, multiple heating machines 10 arranged in the longitudinal direction between the sidewalls 3a, and at least one pair of heat exchangers 14 provided at the sidewall 3a across the heating machines 10. The heat exchanger 14 has an outside air outlet 14io for blowing the outside air into a chicken house 1 through a heat exchange element 14a and an inside air suction port 14oi for sucking the inside air in the chicken house 1 in the upper part of the sidewall 3a side, and has an outside air suction port 14ii for sucking the outside air and an inside air exhaust port 14oo for releasing the inside air to the outside of the chicken house 1 through the heat exchange element 14a in the lower part at the side opposite to the sidewall 3a. The chicken house 1 is provided with a projecting plate 15i between the outside air outlet 14io and the inside air suction port 14oi and between the outside air suction port 14ii and the inside air exhaust port 14oo, and a filter 40 in the inside air suction port 14oi. Accordingly, the chicken house constructs a suitable ventilation system in which the heat exchanger 14 is hard to be clogged.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a poultry house for breeding broilers.

  In broilers, the environmental conditions, especially during the younger days, determine the size of the final growth. Therefore, it is necessary to manage the environment such as the temperature inside the poultry house according to the number of breeding days. For example, when the temperature outside the poultry house is lower than the temperature required for the broiler of the day, the temperature inside the poultry house must be maintained at a predetermined temperature by a heater such as a gas broiler.

  On the other hand, even in the cold season when the outside air temperature is low, in order to improve the air quality in the poultry house, it is necessary to ventilate with the minimum air volume according to the age. Here, the air quality refers to the concentration of each component in the air such as oxygen concentration, carbon dioxide concentration, carbon monoxide concentration, ammonia concentration, dust concentration in the air.

  There are natural ventilation and forced ventilation according to the structure of the poultry house. The poultry house that is the subject of the present invention is a windless poultry house, and conventionally, forced ventilation using a ventilation fan has been performed. Conventional ventilation of a windless poultry house introduces outside air from an air inlet and exhausts the air in the house by a ventilation fan. Therefore, temperature management and ventilation management in the poultry house were performed by operating / stopping the heater and operating / stopping the ventilation fan. In the following, the Windless house will be abbreviated as a house.

  That is, outside air is introduced into the poultry house for ventilation even when the outside air temperature in the cold season is low. However, the temperature inside the poultry house rapidly decreases due to the introduction of cold outside air. Therefore, the ventilation amount is reduced. This causes the air quality in the poultry house to deteriorate.

  On the other hand, in order to prevent the temperature inside the poultry house from dropping even when cold outside air is introduced, the number of brooders must be increased. This is not preferable because initial investment and fuel costs such as gas become high.

  Moreover, if it exhausts with the ventilation fan provided in the wife wall, ventilation wind will arise in the longitudinal direction of a poultry house. Such ventilation air tends to cause differences in temperature and air quality between the windward and leeward. In addition, there is a difference in the wind speed between the longitudinal side of the poultry house and the wall side.

  As a method for solving such problems, a livestock ventilation device using a heat exchanger has been proposed (Patent Document 1). In patent document 1, when one heat exchanger is installed in a barn and outside air is taken in, it is made to heat-exchange with the air in a barn. The outside air heated by heat exchange (temperature lower than the house temperature) is blown out downward by an air supply duct installed in the upper part of the barn.

  Also, in recent years, one large heat exchanger that satisfies the maximum airflow among the minimum airflow depending on the number of breeding days is used, and the outside air taken in is exchanged with the air in the barn, and enters the house from the barn wall. A method of circulating the inside of the building by a blowout fan and a circulation fan is also known.

Japanese Utility Model Publication No. 61-004166

  Since the method of Patent Document 1 uses an air supply duct, a fan driving force in consideration of the pressure loss of the duct is required more than the required air volume. In addition, when the method of Patent Document 1 is applied to a poultry house, the temperature is raised by heat exchange downward through the air supply duct, but still cool air is blown out, so that the broiler chicks that are not molted are also housed. Directly hit the wind at a temperature lower than the internal temperature. This adversely affects the growth of chicks. In particular, when cold air is applied to chicks up to 14 days of age, the weight when grown grows.

  In addition, when the large heat exchanger described above is used, when the ventilation amount is small, the operation is performed by lowering the air flow rate of the supply and exhaust air. You can't get the environment. Furthermore, since the supply / exhaust is made in one place, the breeding zone cannot be partitioned with a vinyl curtain or the like in the building, which is not preferable from the viewpoint of energy saving.

  Therefore, it is conceivable to arrange a large number of small heat exchangers. By the way, the amount of dust in the poultry house is very large. This is due to the main substances of airborne dust such as feathers, litter (mainly sawdust) and bait, which are inevitable for poultry houses. On the other hand, the air path of the heat exchange element in the small heat exchanger is narrow and has a structure that is easily clogged with dust. Therefore, in order to install a small heat exchanger in such an environment with a large amount of dust, it is necessary to arrange a filter device at the inside air suction port.

  However, if the filter is clogged immediately, the replacement frequency becomes high and it takes time and effort. Therefore, it is necessary to have a heat exchanger that is not easily clogged in the poultry house.

  The present invention has been conceived in view of the above problems, and by disposing a plurality of heat exchangers on the side wall, a duct is not used for air supply, and a blown air is used to grow broiler chicks. The broiler house is provided with a heat exchanger that does not adversely affect the filter and that can efficiently provide a uniform thermal environment in a necessary zone in the house and is less likely to clog the filter.

More specifically, the poultry house according to the present invention is:
A rectangular floor;
A side wall provided on the long side of the rectangle; a wife wall provided on the short side of the rectangle;
A roof covering the floor;
A plurality of heaters arranged in a longitudinal direction between the side walls;
Comprising at least a pair of heat exchangers provided with the heater sandwiched between the side walls,
The heat exchanger has a box shape,
An outside air outlet that blows outside air into the poultry house through a heat exchange element on the upper side of the side wall, and an inside air suction port that sucks in the inside air of the poultry house,
In the lower part opposite to the side wall, there is an outside air suction port for sucking the outside air, and an inside air discharge port for releasing the inside air to the outside of the poultry house through the heat exchange element,
A projecting plate is provided between the outside air outlet and the inside air suction port, and between the outside air suction port and the inside air discharge port, and a filter is provided at the inside air suction port.

  In the poultry house according to the present invention, since the inside air suction port is at the upper part on the side wall side in the poultry house, it is possible to reduce the amount of floating dust that tends to collect below the poultry house, and to reduce clogging of the filter. As a result, the interval between cleaning and replacement of the filter can be increased. That is, the maintenance work can be reduced.

  Furthermore, there are many cases where there is a temperature difference in the height direction in the poultry house in winter, and the temperature of the outside air to be taken in can be made higher by sucking higher temperature air. On the other hand, ammonia, which is a malodorous component, is lighter than air, and suction at high places is effective.

  In addition, since the blowout opening is provided at the upper part of the poultry house, the blown outside air is directed upward from the heater, and the warm air rising from the heater is applied to the outside air having a temperature lower than that of the warm air from above. It can be directed toward the floor.

  In addition, a projecting plate is provided between the inlet and the outlet on the inside of the chicken house and the outside of the chicken house, so that it is possible to suppress shortcuts to suction and outlet on the inside and outside of the chicken house.

  Moreover, in the poultry house where the heat exchanger included in the present invention is arranged, the ventilation system that controls the operation of the heat exchanger distributed in the poultry house by the difference between the management temperature and the outside air temperature determined based on the age. Therefore, it is possible to form a poultry house that is energy saving and adapted to the growth of the broiler. Such a poultry house allows efficient broiler growth.

It is the perspective view and top view of a poultry house which concern on this invention. It is a figure which shows the structure of a heat exchanger. It is a figure which shows the structure of a control apparatus. It is a processing flow of the control device. It is a graph which shows the temperature change in the poultry house when temperature management is performed. It is a detailed flow of the process which operates a heat exchanger. It is a figure which shows the example in the case of ventilating for every breeding zone.

  The poultry house according to the present invention will be described below with reference to the drawings. In addition, the following description illustrates one embodiment of the poultry house according to the present invention, and the present invention is not limited to the following description. The following embodiments can be modified without departing from the spirit of the present invention.

  FIG. 1 shows a perspective view (FIG. 1A) and a plan view (FIG. 1B) of a poultry house 1 according to the present invention. The poultry house 1 into which the control device for the ventilation system of the poultry house 1 according to the present invention is introduced is not particularly limited in shape. However, as a desirable form, a poultry house having a rectangular floor surface 2, side walls 3a, 3b provided along the long sides, end walls 4a, 4b provided along the short sides, and a roof 5 is desirable.

  In the side walls 3a and 3b, the inside of the poultry house 1 is referred to as inner side walls 3ai and 3bi, and the outside of the poultry house 1 is referred to as outer walls 3ao and 3bo. In FIG. 1B, only the inner wall 3ai and the outer wall 3ao are shown. Further, the floor surface 2 can be divided into a plurality of breeding zones Bz. Usually, since the area to be raised in the poultry house 1 is expanded according to the age, it is preferable that the area can be divided into a plurality of breeding zones Bz. FIG. 1B shows a case where there are four breeding zones Bz.

  In the poultry house 1, a heater 10 (also referred to as “broider”) is installed along the center line 2 a of the floor 2. The heater 10 may be placed directly on the floor 2 or may be suspended at a certain height from the ceiling. The interval 10a between the heaters 10 is approximately equal. This is because the heater 10 is placed in order to keep the temperature inside the poultry house 1 constant, and it is desirable that the temperature at an arbitrary position on the floor 2 be constant.

  Therefore, it is desirable that the distance 3L between the side walls 3a and 3b be set at a distance that allows the effect of the heater 10 to reach the wall when the heater 10 is placed at the center.

  A ventilation fan 12 may be provided on at least one of the wife walls 4a. The other end wall 4b is also provided with a door 13 that can be opened and closed like a ventilation fan 12 or a screen door. Heat exchangers 14 are provided opposite to the opposing side walls 3a and 3b, respectively. In FIG. 1B, 16 heat exchangers 14 are arranged on the side walls 3a and 3b, respectively.

  FIG. 2 shows a simple configuration of the heat exchanger 14. In the following description, the side wall 3a side is described. However, the side wall 3b side is the same. The heat exchanger 14 includes a heat exchange element 14 a, an exhaust system air passage 14 o that exhausts air inside the poultry house 1 to the outside of the poultry house 1, and an air supply system air path 14 i that takes air outside the poultry house 1 into the poultry house 1. Consists of.

  The heat exchanging element 14a brings the air flow path 14o of the exhaust system and the air path 14i of the supply system close to each other, and gives the heat amount of the air of the exhaust system to the air of the supply system (sensible heat exchange), or the humidity of the exhaust system You may give to the air of a supply system (total heat exchange).

  Most preferably, the heat exchanger 14 incorporates both a sensible heat exchange element and a total heat exchange element as the heat exchange element 14a and can be switched by an instruction from the outside. In addition, the case where it operates with a sensible heat exchange element is called sensible heat operation, and the case where it operates with a total heat exchange element is called total heat operation.

  The exhaust system of the heat exchanger 14 is provided with an inside air suction port 14oi that takes in the air in the poultry house 1 at the uppermost portion on the inner wall 3ai side. Also, an inside air discharge port 14oo that is an outlet for air in the exhaust system is provided below the heat exchanger 14. Further, it is disposed above an outside air suction port 14ii described later.

  A fan 14of is provided in the middle of the exhaust system air passage 14o to generate an air flow from the inside of the poultry house 1 to the outside of the poultry house 1. In the exhaust system, air reaches the heat exchange element 14a from the inside air suction port 14oi through the air passage 14o of the exhaust system, is sent out from the heat exchange element 14a to the inside air discharge port 14oo, and is discharged outside the poultry house 1.

  In the air supply system of the heat exchanger 14, an outside air suction port 14 ii for taking in air outside the poultry house 1 is provided at the lowermost part of the heat exchanger 14. An outside air outlet 14io that is an outside air discharge port is provided above the inner wall 3ai and below the inside air suction port 14oi. A fan 14if is also provided in the air passage 14i of the air supply system, and generates an air flow from the outside of the chicken house 1 to the inside of the chicken house 1. In the air supply system, air reaches the heat exchange element 14 a from the outside air suction port 14 ii, is sent out from there to the outside air outlet 14 io in the poultry house 1, and is released into the poultry house 1.

  Between the inside air suction port 14oi and the outside air outlet 14io, a protruding plate 15i is disposed so as to protrude into the poultry house 1. Further, a protruding plate 15o is also provided between the outside air suction port 14ii and the inside air discharge port 14oo so as to protrude outside the poultry house 1. The protruding plate 15i separates between the outside air warmed by the heat exchange element 14a (blows out from the outside air outlet 14io) and the inside air suction port 14oi that sucks in the poultry house 1 containing ammonia and the like for exhaustion. Avoid air mixing. This is to prevent fresh outside air from being discharged immediately in the poultry house 1. In other words, it is to prevent outside air shortcuts.

  This is because the air in the poultry house 1 discharged from the inside air discharge port 14oo is not immediately sucked from the outside air suction port 14ii as the outside air for the protruding plate 15o.

  A filter 40 is disposed in the inside air suction port 14oi. The filter 40 is preferably made of a fiber made of polyvinylidene chloride which can be washed with water. This is because the air passage 14o of the exhaust system of the heat exchanger 14 is not clogged with dust.

  In addition, in the intake / exhaust inside the poultry house 1, an outside air outlet 14io that blows out outside air that is heated by the heat exchange element 14a but lower than the temperature in the poultry house 1 is disposed below the inside air suction port 14oi. That is, since the outside air blown out from the outside air outlet 14io is directed obliquely downward, the outside air outlet 14io and the inside air suction port 14oi are arranged so that a shortcut to outside air can be reduced.

  Similarly, in the intake / exhaust on the outside of the poultry house 1, the inside air discharge port 14oo for discharging the air in the poultry house 1 is disposed above the outside air suction port 14ii. Since the air in the poultry house 1 discharged from the inside air discharge port 14oo has a temperature higher than that of the outside air and goes obliquely upward, the inside air discharge port 14oo and the outside air suction port 14ii are arranged to reduce the shortcut to the inside air. Thereby, the protrusion length to the poultry house 1 inner side and the poultry house 1 outer side of the protrusion board 15i and the protrusion board 15o can be shortened.

  Referring to FIG. 1 (b) again, it is desirable that a plurality of heat exchangers 14 be provided on each of the side walls 3a and 3b of the poultry house 1. This is because the range that can be covered by one heat exchanger 14 is not so wide, and if there are many heat exchangers 14, it is easy to set the interior of the poultry house 1 in a uniform environment.

  A ventilation fan 12 is provided on the end walls 4a and 4b. The ventilation fan 12 may be provided on the side walls 3a and 3b instead of the end walls 4a and 4b. When the distance 4L between the end walls 4a and 4b is long, in order to ventilate the poultry house 1 only with the exhaust fan 12 disposed on the end walls 4a and 4b, it is necessary to rotate the high-power exhaust fan 12. Therefore, in such a case, it is preferable from the viewpoint of energy saving to provide a plurality of small ventilation fans 12 on the side walls 3a and 3b rather than providing the large ventilation fans 12 on the end walls 4a and 4b. Further, the door 13 described above may also be provided on the side wall 3a or the side wall 3b.

  On the other hand, when the distance 4L between the end walls 4a and 4b is not so long, providing the ventilation fans 12 on the end walls 4a and 4b has an effect of saving the initial investment.

  The poultry house 1 is further provided with several sensors. First, an outside air thermometer 16a and an outside air hygrometer 16b are provided outside the poultry house 1. The poultry house 1 is provided with an in-house thermometer 18a, an in-house hygrometer 18b, and an environmental meter 20 capable of measuring carbon dioxide, carbon monoxide, ammonia, and the amount of dust.

  Although the environmental measurement meter 20 is described here as one, there may be separate measuring devices for the carbon dioxide meter 20a, the carbon monoxide meter 20b, the ammonia meter 20c, and the dust meter 20d. In FIG. 1, these symbols are not described, but are described as one environment measuring instrument 20. Further, a measurement value obtained from the environmental meter 20 is referred to as an environmental index Ev. Therefore, the environmental meter 20 may be called an environmental index measuring device.

  The chicken house 1 may be provided with a camera 22. The floor surface 2 of the poultry house 1 is divided into a plurality of breeding zones Bz. The number of cameras 22 is set such that at least all the breeding zones Bz can determine whether or not there is a broiler.

  The poultry house 1 is provided with a control device 30. The control device 30 determines the ventilation amount and the operation of the heat exchanger 14 based on the outside air and the temperature and humidity in the building. FIG. 3 shows the configuration of the control device 30. The control device 30 operates with an MPU (Micro Processor Unit), a memory 30m, and a control program. The control device 30 is connected to an input device 31 for giving an instruction from the outside and a display device 32 capable of displaying the state in the poultry house 1.

  Signals from the outside thermometer 16 a, the outside hygrometer 16 b, the building thermometer 18 a, the building hygrometer 18 b, the environmental measurement meter 20, and the input device 31 are input to the control device 30. The control device 30 is connected to the heater 10, the ventilation fan 12, each heat exchanger 14, and the display device 32. An instruction signal can be output to these devices. In addition, about the heater 10, the ventilation fan 12, and each heat exchanger 14, when there are two or more, it can receive and instruct | indicate a signal with respect to each apparatus.

  Further, in the control device 30, a timer 30T, a management temperature determination unit 30A, a management ventilation amount determination unit 30B, a breeding zone determination unit 30C, a heat exchanger control unit 30D, an age determination unit 30E, and an outside air temperature detection unit 30F Is provided. These may be provided with a dedicated circuit in the control device 30, but may be realized as software as a control program.

  Operation | movement is demonstrated, showing a flow about the control apparatus 30 of the ventilation system of the poultry house 1 which has the above structure. FIG. 4 is a part of the control flow of the ventilation system of the control device 30. The control device 30 may perform more control than shown here.

  When the process starts (step S100), initialization is performed (step S102). As initial settings, management temperature Tc, management humidity Hc, ΔT1, ΔT2, minimum ventilation volume Ae, value of correction value Ad based on environmental index Ev, designation of breeding zone Bz, and the like are input. As will be described later, the correction value Ad is a value that is considered when determining the number of operating heat exchangers 14. These values are changed according to the age of the broiler. Therefore, an equation for obtaining a value corresponding to the age and a table of each variable for each age are input in advance at the time of initial setting.

  Thereafter, when a broiler chick is accepted (Y branch in step S104), management is started. The breeding zone Bz described in the initial setting may be input at this time. The control device 30 starts an internal timer 30T (step S106). Or record the date and time of receipt. Thereafter, the current age is obtained by the age determination unit 30E based on the value of the timer 30T or the elapsed time from the date of acceptance. That is, the age determination unit 30E returns the current age Rd when requested. Here, the age of the day of acceptance (“current age Rd” at this stage) is recorded in the management age Md.

  Next, management parameters Mp such as management temperature Tc, management humidity Hc, ΔT1, ΔT2, and minimum ventilation volume Ae are determined based on the management day age Md (step S108). ΔT1 and ΔT2, which will be described later, are a margin for temperature management. The management temperature Tc, the management humidity Hc, ΔT1, and ΔT2 are determined by the management temperature determination unit 30A based on the management date Md. The correction value Ad based on the minimum ventilation volume Ae and the environmental index Ev is determined by the management ventilation volume determination unit 30B based on the management day age Md. Thereafter, if this routine is passed, the management parameter Mp is updated according to the management day age Md at that time.

  Next, a temperature obtained by subtracting ΔT1 ° C. from the management temperature Tc determined based on the management day age Md and the outside temperature To that is obtained by the outside temperature detector 30F by the outside temperature thermometer 16a is compared (step S110). If the outside air temperature To is low (Y branch of step S110), the heat exchanger 14 is started (step S112). That is, when the outside air temperature To falls below ΔT1 ° C. from the management temperature Tc, sufficiently cool air is taken in from the building, so the heat exchanger 14 is started and efforts are made to maintain the amount of heat. In addition, when starting the heat exchanger 14, the driving | operation of the ventilation fan 12 is stopped (step S112). If the heat exchanger 14 is already operating, the process proceeds to step S118 without doing anything.

  On the other hand, when the outside air temperature To is higher than the temperature obtained by subtracting ΔT1 ° C. from the management temperature Tc (N branch in step S110), the outside air temperature To is compared with the value obtained by adding ΔT2 ° C. to the management temperature Tc (step S114). If the outside air temperature To is higher than the temperature obtained by adding ΔT2 ° C. to the management temperature Tc (Y branch of step S114), the heat exchanger 14 is stopped and the ventilation fan 12 is started (step S116).

  In this case, since the cold air is not taken in from the outside from the outside, the heat exchanger 14 is stopped. If the heat exchanger 14 has already stopped, the process proceeds to the next flow without doing anything. If the determination in this step is No, nothing is done and the process proceeds to step S118. In step S110 and step S114, the inequality sign does not include a case where the values are equal to each other, but may be included. That is, the inequality sign in both steps may be “<” or “≦”.

  Next, it is determined whether or not the management parameter Mp needs to be changed (step S118). This determination is made based on whether or not the age has advanced. This is because the ventilation system operates according to the age. Specifically, if the management age Md and the current age Rd calculated by the age determination unit 30E are different (N branch in step S118), it is determined that the management parameter Mp needs to be changed.

  If it is determined that a change is necessary, the management age Md is incremented (step S120), and the process proceeds to step S108. If it is not necessary to change the management parameter Mp (Y branch in step S118), an end determination (step S122) is performed. The end determination may be made based on whether or not the current age Rd is the planned shipping age RE.

  When the process is to be ended (Y branch in step S122), an end process is performed (step S124) and the process is stopped (step S126). If the process does not end (N branch in step S122), the process proceeds to step S110.

  FIG. 5 shows an operation image of the heat exchanger 14 controlled by the above flow. First, reference is made to FIG. FIG. 5 (a) shows the operation of the heat exchanger 14 within a day. The horizontal axis is time, and the vertical axis is temperature. Even during the day, the outside air temperature To decreases from midnight to dawn. When the sun rises, the outside air temperature To rises, and the outside air temperature To falls again from noon to evening. This is shown by the curve of the outside air temperature To.

  It is assumed that the management temperature Tc determined by the age at this time is determined as shown in FIG. 5A with respect to such a change in the outside air temperature To. Basically, the heat exchanger 14 is operated when the outside air temperature To is lower than the management temperature Tc, and is stopped when the outside air temperature To is higher than the management temperature Tc. And the control apparatus 30 of this invention will start an operation | movement, if outside temperature To becomes (DELTA) T1 degreeC or more lower than management temperature Tc. In FIG. 5A, the point “START14” is the operation start point of the heat exchanger 14.

  Further, the operation is stopped when the outside air temperature To becomes higher than the control temperature Tc by ΔT2 ° C. or more. In FIG. 5A, the point of “STOP 14” is the operation stop point of the heat exchanger 14. By performing such management, it becomes possible to give a sufficient amount of heat to the broiler during cold hours of the day, and to suppress wasteful operation / stop hunting of the heat exchanger 14.

  FIG. 5B is an explanatory diagram when the time axis is made longer. The horizontal axis is the number of breeding days, and the vertical axis is the temperature. The management temperature Tc is determined based on the age of the broiler, and the management temperature Tc decreases as the age advances. For example, the management temperature of chicks up to 7 days of age is required to be about 30 ° C., but the management temperature of adult birds that have passed 35 days of age and molted may be 16 to 18 ° C.

  In FIG.5 (b), it turns out that management temperature Tc is falling with the number of breeding days (day age). On the other hand, it is assumed that the outside air temperature To is moving from a low temperature to a high temperature as shown in FIG. Of course, the outside air temperature To varies depending on the season in which the poultry house 1 is set up.

  Here again, the heat exchanger 14 is operated when the outside air temperature To is lower than the management temperature Tc by ΔT1 ° C. or more, and is stopped when it is higher than the management temperature Tc by ΔT2 ° C. or more. FIG. 5B shows that after the breeding days W, the heat exchanger 14 has entered a period when it is not necessary to use it. Of course, as shown in FIG. 5A, the operation is repeatedly started and stopped according to the temperature during the day. Therefore, even in the season when the outdoor temperature To during the daytime is sufficiently higher than the house temperature, the heat exchanger 14 operates if the temperature before dawn is lower than the management temperature Tc by ΔT1 ° C. or more.

  Further, as shown in FIG. 5B, ΔT1 is set to a large value according to the age of the broiler, and ΔT2 is set to a small value according to the age of the broiler. Broilers gain weight with age, and the broiler itself generates more heat. ΔT1 is set as a proportion of the rise in the building temperature due to the amount of heat generated by the broiler itself. ΔT2 is a value provided to suppress hunting of operation / stop of the heat exchanger 14, and the width of the dead zone (ΔT1 + ΔT2) is set to a constant value regardless of the age, so ΔT2 is the value of the broiler A small value is set according to the age. Thereby, useless driving | operation of the heat exchanger 14 can be suppressed and the energy saving of fuel cost reduction can be performed efficiently.

  FIG. 6 is a flow showing further details of the operation of the heat exchanger 14 in the flow of FIG. 4 (step S112). When operating the heat exchanger 14, first, the minimum ventilation amount Ae is determined (step S202). The minimum ventilation volume Ae is determined by the management ventilation volume determination unit 30B based on the management day age Md. This is because broilers know almost the required amount of oxygen according to their age.

  Further, the environmental index Ev may be taken into account for determining the minimum ventilation amount Ae. This is because there are cases where dust tends to stand up depending on the season and the condition of the bedding at that time, or the amount of ammonia in the air increases due to poor cleaning. Thus, when the environmental index Ev increases, it is necessary to perform ventilation that is equal to or greater than the minimum ventilation amount Ae calculated from the age. In the figure, it is described as “Ae = F (Md, Ad)” that the minimum ventilation amount Ae is determined based on the correction value Ad determined by the management day age Md and the environmental index Ev.

  How to determine the correction value Ad based on the environmental index Ev is determined by the type of broiler and other factors. The relationship between the environmental index Ev and the correction value Ad is preferably input at the time of initial setting (step S102).

  Next, it is confirmed whether or not the breeding zone Bz is designated (step S204). If the breeding zone Bz is designated (Y branch in step S204), the process proceeds to step S250.

  If the breeding zone Bz is not specified (N branch in step S204), a heat exchanger 14 (use device) used in the heat exchanger 14 and an operation pattern P14 for selecting continuous operation or intermittent operation are obtained. (Step S206). It is also assumed that this is given to the control device 30 in advance by a table or the like. Or you may make it obtain | require with a numerical formula. When the minimum ventilation volume Ae is smaller than the minimum ventilation volume capacity of the heat exchanger 14 to be used, the operation pattern P14 is intermittent operation, and in other cases, it is continuous operation. This process may be performed by the management ventilation amount determination unit 30B.

  When the heat exchanger 14 to be used and the operation pattern P14 are determined, an instruction is issued to the corresponding heat exchanger 14. This instruction may be performed by the heat exchanger control unit 30D. The heat exchanger 14 (corresponding device) that has received the instruction starts (step S208). The processing flow moves to step S118 in FIG. In this way, the heat exchanger 14 is operated.

  Processing when the breeding zone Bz is designated (Y branch in step S204) will be described. The designation of the breeding zone Bz means that the floor surface 2 of the chicken house 1 is divided into a plurality of sections and only a part of the breeding zone Bz is used. The designation of the breeding zone Bz is notified to the control device 30 by inputting to the control device 30 when the date of entry and the breeding zone Bz are changed. In the flow of FIG. 4, it can be performed at the initial setting in step S102 or the timer start portion in step S106.

  The control device 30 operates the heat exchanger 14 associated with the designated breeding zone Bz. When the camera 22 is set in the poultry house 1, if there is an instruction to use the breeding zone Bz, the control device 30 detects the breeding zone Bz currently used by viewing the video of the camera 22. To do. FIG. 6 shows a flow when the camera 22 is used. If a specific location of the breeding zone Bz is instructed, it is sufficient to skip to step S254.

  Specifically, images of the breeding zone Bz are copied at different times (step S250), and by comparing these, it is possible to determine which breeding zone Bz is used (step S252). Of course, the breeding zone Bz is determined by image analysis other than this, and the detection is completed. Such processing can be performed by the breeding zone determination unit 30C.

  When the breeding zone Bz is determined, the heat exchanger 14 and the operation pattern P14 to be used are determined (step S254). Thereafter, the corresponding heat exchanger 14 is instructed (step S256).

  FIG. 7 shows the floor surface 2 of the poultry house 1 divided into breeding zones Bz. It is assumed that there are four breeding zones Bz and the third zone from the left is used. The control device 30 knows that an instruction for this zone has been received in advance or that breeding is being performed in this zone through image analysis of the camera 22.

  And operation instruction | indication is performed to 4 sets 8 heat exchangers 14 which can cover a 3rd zone. In this way, since only the breeding zone Bz is ventilated and the entire poultry house 1 is not ventilated, unnecessary power consumption can be suppressed. In addition, when the minimum ventilation volume Ae is lower than the minimum ventilation volume of 4 sets of 8 heat exchangers 14, the uniformity of ventilation in the breeding zone Bz is ensured by operating each heat exchanger 14 in order.

  For example, in FIG. 7, reference numerals 1 to 8 are assigned to eight heat exchangers 14. Then, the heat exchanger 14 is operated in the order of the symbols, and when one unit is operating, the other heat exchanger 14 is stopped. Of course, you may perform intermittent operation about all the applicable heat exchangers 14. FIG.

  By operating the heat exchanger 14 intermittently in this manner, the inside of the breeding zone Bz can be uniformly ventilated, and the degree of contamination of the filter 40 and the heat exchange element 14a at the inside air suction port 14oi of the heat exchanger 14 can be adjusted. It can be made constant for each heat exchanger 14.

  As described above, the poultry house according to the present invention can perform temperature management and ventilation management according to the breeding days in the poultry house, suppress unnecessary power consumption, and perform energy saving operation.

  The poultry house which concerns on this invention can be utilized suitably for the poultry house which breeds a broiler.

DESCRIPTION OF SYMBOLS 1 Chicken house 2 Floor Bz Rearing zone 3a, 3b Side wall 3ai, 3bi Inner side wall 3ao, 3bo Outer side wall 3L Distance between side walls 3a, 3b 4a, 4b End wall 4L Distance between end walls 4a, 4b 5 Roof 2a Floor 2 No center line 10 Heater (Bruder)
10a Interval between each heater 10 Ventilation fan 13 Door 14 Heat exchanger 14a Heat exchange element 14o Exhaust air passage 14i Air supply air passage 14oi Inside air inlet 14oo Inside air outlet 14of Fan 14ii Outside air inlet 14io Outside air outlet 14if Fan 15i, 15o Projection plate P14 Operation pattern 16a of heat exchanger 14 Outdoor thermometer 16b Outdoor hygrometer 18a Indoor thermometer 18b Indoor hygrometer 20 Environmental meter (carbon dioxide meter 20a, carbon monoxide meter 20b, ammonia 20c, dust meter 20d)
Ev environmental index 22 camera 30 control device 30m memory 30T timer 30A management temperature determination unit 30B management ventilation amount determination unit 30C breeding zone determination unit 30D heat exchanger control unit 30E day age determination unit 30F outside temperature detection unit 31 input device 32 display device 40 Filter Tc Control temperature Hc Control humidity ΔT1, ΔT2
Ae Minimum ventilation volume Ad Value corrected by environmental index Ev Management parameter To Outside temperature Md Management day age Rd Current day RE Expected shipping day

Claims (3)

A rectangular floor;
A side wall provided on the long side of the rectangle; a wife wall provided on the short side of the rectangle;
A roof covering the floor;
A plurality of heaters arranged in a longitudinal direction between the side walls;
Comprising at least a pair of heat exchangers provided with the heater sandwiched between the side walls,
The heat exchanger has a box shape,
An outside air outlet that blows outside air into the poultry house through a heat exchange element on the upper side of the side wall, and an inside air suction port that sucks in the inside air of the poultry house,
In the lower part opposite to the side wall, there is an outside air suction port for sucking the outside air, and an inside air discharge port for releasing the inside air to the outside of the poultry house through the heat exchange element,
A poultry house provided with a projecting plate between the outside air outlet and the inside air suction port and between the outside air suction port and the inside air discharge port, and a filter at the inside air suction port. The outside air outlet is below the inside air suction port,
The poultry house according to claim 1, wherein the inside air discharge port is provided above the outside air suction port. A management temperature determination unit that determines the management temperature based on the age of the broiler;
An outside air temperature detector for detecting the outside air temperature of the poultry house;
A heat exchanger control unit for controlling the operation of the heat exchanger;
When the outside air temperature is lower by ΔT1 ° C. than the management temperature, the heat exchanger is operated,
The poultry house according to claim 1 or 2, further comprising a ventilation system controller that stops the heat exchanger when the outside air temperature is higher by ΔT2 ° C than the management temperature.