JP2017172926A - Control device for ventilation system of poultry house - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a control device which is efficient and which can perform an energy-saving operation in a poultry house where a heat exchanger is disposed.SOLUTION: A control device for ventilation system of a poultry house including a heat exchanger includes: a management temperature determination part for determining a management temperature based on day-old of broilers; an outside air temperature detection part for detecting an outside air temperature of the poultry house; and a heat exchanger control part for controlling an operation of the heat exchanger. When the outside air temperature becomes lower than the management temperature by ΔT1°C, the heat exchanger is operated, and when the outside air temperature becomes higher than the management temperature by ΔT2°C, the heat exchanger is stopped.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a ventilation system for 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.

  The ventilation of the poultry house includes natural ventilation and forced ventilation according to the structure of the poultry house, and the poultry house targeted by 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.

  In view of such circumstances, a method has been proposed in which cold outside air is not introduced into the poultry house as it is. As an example, Patent Document 1 discloses a chicken house equipped with a heat exchanger.

Japanese Utility Model Publication No. 61-004166

  Patent Document 1 discloses a poultry house equipped with a heat exchanger. The heat exchanger exchanges air having heat generated by carbon dioxide generated by broilers and body temperature in the poultry house with air introduced from outside the poultry house, and raises the temperature of the cold outside air and introduces it into the poultry house. By doing so, cold outside air is directly introduced into the poultry house, and the temperature inside the poultry house is prevented from rapidly decreasing.

  However, as already mentioned, broilers require fine temperature control and ventilation control in the poultry house according to the number of days of breeding, and it is difficult to achieve both energy saving and heat control by simply installing a heat exchanger. And a heat exchanger control method that performs ventilation management with energy saving has not been devised.

  A control device for a ventilation system of a poultry house according to the present invention has been conceived in view of the above-described problems, and provides a control device for efficiently operating a ventilation system in a poultry house having a heat exchanger. It is.

More specifically, the control device for the ventilation system of the poultry house according to the present invention,
A control device for a ventilation system of a poultry house with a heat exchanger,
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 heat exchanger is stopped when the outside air temperature is higher by ΔT2 ° C. than the management temperature.

  The control device for the ventilation system of the poultry house according to the present invention controls the presence or absence of operation of the heat exchanger distributed in the poultry house based on the difference between the management temperature determined based on the age and the outside air temperature, and is energy saving. Moreover, the environment inside the poultry house can be adjusted according to the growth of the broiler. As a result, efficient broiler growth is possible.

It is the external appearance and top view of a chicken house in which the control apparatus of the ventilation system which concerns on this invention was integrated. 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.

  Below, the control apparatus of the ventilation system of the poultry house which concerns on this invention is demonstrated, referring a figure. In addition, the following description illustrates one embodiment of the control device for the ventilation system 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. 1 (a)) and a plan view (FIG. 1 (b)) of a poultry house having a control device for a ventilation system of the poultry house according to the present invention. The poultry house 1 into which the control device for the poultry house ventilation system 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, in order to expand the breeding area according to the age in the poultry house, 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 air supply system close to each other to give the heat amount of the air of the exhaust system to the air of the air 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 air inside the poultry house 1 below the inner wall 3ai. Further, an inside air discharge port 14oo that is an outlet of air in the exhaust system is provided in the lower part of the heat exchanger 14.

  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, is sent 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 top of the heat exchanger 14. An outside air outlet 14io, which is an outside air outlet, is provided above the inner wall 3ai. 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.

  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 the figure, 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 air thermometer 16a, the outside air hygrometer 16b, the building thermometer 18a, the building hygrometer 18b, the environment measuring 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 instruct | indicate 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 heat exchanger operation / stop hunting, and the width (ΔT1 + ΔT2) of the dead zone is set to a constant value regardless of the age, so ΔT2 is the broiler day. 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 in further detail the step (S112) in which the heat exchanger 14 of the flow of FIG. 4 operates. 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 volume Ae is determined based on the correction value Ad determined by the management day age Md and the environmental index Ev.

  How the correction value Ad is determined by 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 way, the inside of the breeding zone Bz can be uniformly ventilated, and the degree of contamination of the filter of the inside air suction port 14oi of the heat exchanger 14 and the heat exchange element 14a can be changed. It can be made constant for each heat exchanger 14.

  As described above, the control device 30 of the poultry house ventilation system 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. it can.

  The control device of the ventilation system for a poultry house according to the present invention can be suitably used for a poultry house for breeding broilers.

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 Center line 10 heater 10a interval 12 between each heater 10 ventilating fan 13 door 14 heat exchanger 14a heat exchange element 14o exhaust air passage 14i air supply air passage 14oi inside air suction port 14oo inside air outlet 14of fan 14ii outside air Suction port 14io Outside air outlet 14if Fan P14 Heat exchanger 14 operation pattern 16a Outside air thermometer 16b Outside air humidity meter 18a Inside temperature meter 18b Inside humidity meter 20 Environmental measuring meter (carbon dioxide meter 20a, carbon monoxide meter 20b, Ammonia meter 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 Tc Management Temperature, Hc Management Humidity, ΔT1, ΔT2, Ae Minimum Ventilation, Correction Value by Ad Environmental Index Ev, Mp Management Parameter To Outside Air Temperature Md Management Day Age Rd Current Day RE Estimated Shipping Days

Claims (6)

A control device for a ventilation system of a poultry house with a heat exchanger,
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,
A control device for a ventilation system of a poultry house, wherein the heat exchanger is stopped when the outside air temperature is higher by ΔT2 ° C than the management temperature. The ΔT1 is set to a large value according to the age of the broiler,
2. The control device for a ventilation system of a poultry house according to claim 1, wherein the ΔT <b> 2 is set to a small value according to the age of the broiler. A ventilation rate determining unit for determining a minimum ventilation rate based on the age of the broiler;
The control device for a ventilation system of a poultry house according to claim 1 or 2, wherein the number of operating heat exchangers is determined based on the minimum ventilation amount. The poultry house is further provided with an environmental index measuring device for measuring an environmental index in the poultry house,
The ventilation rate determining unit determines the number of operating heat exchangers based on the age of the broiler and the value of the environmental index obtained from the environmental index measuring device. A control device for the ventilation system of a house. The poultry house is divided into a plurality of breeding zones,
The said heat exchanger control part operates the said heat exchanger relevant to the said breeding zone, The control apparatus of the ventilation system of the poultry house described in any one of Claims 1 thru | or 4 characterized by the above-mentioned. The poultry house is further provided with a camera for monitoring the breeding zone,
A breeding zone determination unit for determining the currently used breeding zone from the video of the camera;
6. The poultry house ventilation according to claim 5, wherein the heat exchanger control unit operates the heat exchanger associated with the currently used breeding zone detected by the breeding zone determination unit. System control unit.