JP7134506B2 - water supply system - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water supply system for watering birds raised in a poultry farm.

In large-scale poultry farms where a large number of birds are raised in a large number of cages, water supply to the birds is also labor-saving. In general, a water supply pipe is arranged along a row of cages in which a plurality of cages are horizontally arranged, and water with reduced water pressure is supplied to the water supply pipe from a water supply source such as a tap water supply. The water supply pipe is provided with a plurality of water supply devices, and the downstream end of the water supply pipe is sealed. The water supply device opens and closes a flow path by means of a valve body that protrudes and retracts vertically with respect to a main body. When the bird pushes up the valve body with its beak, the channel is opened and the water flows down so that the bird can drink. Then, the water that has flowed out through the waterer, that is, the water that the birds have drunk is newly supplied from the water supply source to the water supply pipe.

In the above system, water tends to stay in the water supply pipe, so there is a problem that the water gets warm when the temperature is high, such as in summer. The above-mentioned waterers have a structure in which water does not flow out unless the birds themselves operate them, but since birds tend not to want to drink warm water when the temperature is high, the amount of water intake is reduced. Reduced water intake leads to poor bird health and a vicious cycle of water retention and warmer water as water consumption decreases.

Therefore, a water supply system has been proposed in which the water supplied to the water supply pipe is circulated through a tank, and when the water temperature rises, the water in the tank is pumped to the cooling system, and the cooled water is returned to the tank (Patent Reference 1). This water supply system has the advantage that cooled water is supplied to the water supply pipe even when the temperature is high. Since the required configuration is many and the structure becomes complicated, there is a problem that the installation cost increases and the running cost also increases. Also, since drinking water is circulating, great care must be taken to prevent water contamination.

In addition, the water supply pipe has a double structure of an inner pipe and an outer pipe. A water supply device has been proposed in which heat is exchanged between the water inside the inner pipe and the water outside (see Patent Document 2). Water for cooling is circulated through the tank, the water in the tank is sent to the chiller based on temperature sensing, and the cooled water is returned to the tank. Like the device of Patent Document 1, this water supply device has a complicated structure with many necessary components such as a tank, a cooling device, a pump that sends water from the tank to the cooling device, and a pump that sends water from the tank to the inner pipe. There is a problem that the installation cost increases and the running cost also increases. In addition, a special water supply pipe with a double structure is used. As a result, the cost is high, and existing poultry farms require large-scale construction work to replace the conventional water supply pipes, making it difficult to introduce them.

In order to solve this problem, a water supply system has been proposed in which a cooling pipe is externally arranged along a water supply pipe, and the cooling pipe and the water supply pipe are covered with a heat insulating member (Patent Reference 3). Cooling water is circulated through the tank, the water in the tank is sent to a cooling device based on temperature sensing, and the cooled water is returned to the tank, similar to the device of US Pat. Therefore, it is also the same that the cost is high due to the complicated structure with many required configurations. Unlike the device of Patent Document 2, there is an advantage that an existing water supply pipe can be used as it is. In large-scale poultry farms, a large number of cages are arranged horizontally in parallel, and the rows of cages are stacked in multiple tiers. long. Therefore, the work of arranging the cooling pipes along all the water supply pipes and covering them with a heat insulating member is inevitably a large-scale task.

JP-A-2005-237241 JP 2009-296943 A JP 2015-80415 A

Therefore, in view of the above circumstances, the present invention provides a water supply that can suppress, with a simple configuration, an increase in water temperature due to water stagnation in a water supply pipe through which drinking water for birds reared in cages is circulated. The challenge is to provide the system.

In order to solve the above problems, the water supply system according to the present invention includes:
"A water supply system for providing water to birds housed and reared in cages inside a poultry house, comprising:
a water supply pipe arranged along a row of cages in which a plurality of cages are horizontally arranged;
a plurality of water supply devices are provided for each of the water supply pipes, and push up a valve body to cause water in the water supply pipe to flow out;
a decompression device connected to the upstream end of the water supply pipe, for reducing the water pressure of water sent from a water supply source and allowing it to flow into the water supply pipe;
It is connected to the downstream end of the water supply pipe and switches between a sealing mode in which the downstream end of the water supply pipe is sealed and a discharge mode in which the downstream end of the water supply pipe communicates with a discharge pipe. an on-off valve;
Provided with a panel material that has air permeability and covers the inlet of the poultry house, and a supply pipe that supplies water to the upper surface of the panel material, the temperature becomes low due to the heat of vaporization of the water that has permeated the panel material. a cooling panel for cooling the air passing through the air inlet with the panel material;
a water tank provided below the cooling panel for receiving water flowing down the panel material;
a pump that sends water in the water tank to the supply pipe;
The discharge pipe guides the water discharged from the water supply pipe to the water reservoir.

The water supply system of this configuration is a new configuration in which a cooling panel used for cooling the air taken in from the outside during ventilation in a large poultry farm is incorporated into the system for supplying water to the birds.

When the water stays in the water supply pipe and becomes warm, the sealing mode is switched to the discharge mode by opening the on-off valve. This causes the water in the water supply pipe to flow out to the discharge pipe, providing unheated fresh water from the water supply to the water supply pipe. Therefore, even in the summer when the temperature is high, the birds can be fed with unheated water.

If the water discharged from the water supply pipe is simply discarded, it will be wasted both as a resource and in terms of cost. In contrast, in this configuration, the discharged water is led to the water tank below the cooling panel and added to the water that is circulated and used as the water to be supplied to the panel material. Therefore, the water discharged from the water supply pipe can be used without waste.

Cooling panels are equipment that large poultry farms should have. And when the temperature is high enough to warm the water in the water supply pipes, the cooling panels are used to ventilate the poultry facility, and the pumps that send water from the water tanks to the supply pipes are also running. Therefore, in order to introduce the water supply system of this configuration, there are few new configurations to be added to the conventional facilities, and the water temperature rises due to the water stagnation in the water supply pipe while keeping the system configuration simple. can be suppressed.

In addition, even in the discharge mode, the water sent to the water supply pipe passes through a pressure reducing device to reduce the water pressure. Therefore, even in the discharge mode, the water pressure in the water supply pipe does not increase, and the bird's drinking water through the water supply is not hindered. In addition, since the water whose water pressure has been reduced through the decompression device is sent to the reservoir via the discharge pipe, it is possible to reduce the amount of water sent per unit time, avoiding situations in which large amounts of water continue to be sent to the reservoir. can do.

The water supply system according to the present invention, in addition to the above configuration,
" Downstream from the connection with the water supply pipe, the discharge pipe extends at a single height along the floor of the poultry house to the water tank,
The water tank is provided with a constant water valve for setting the water level of the water tank lower than the downstream end of the discharge pipe, without a pump for sending the water discharged from the water supply pipe to the water tank. Therefore , the water discharged from the water supply pipe is sent to the water tank only by the water pressure reduced through the decompression device and the action of gravity .

In this configuration, the water discharged from the water supply pipe does not need power such as a pump to send the water to the water tank, and the water is easily sent to the water tank only by the water pressure reduced through the decompression device and the action of gravity. be able to.

INDUSTRIAL APPLICABILITY As described above, according to the present invention, a water supply system capable of suppressing, with a simple configuration, an increase in water temperature due to water stagnation in a water supply pipe through which drinking water for birds reared in cages is circulated. can be provided.

FIG. 1 is a schematic configuration diagram of a poultry house equipped with a water supply system according to one embodiment of the present invention. FIG. 2 is an enlarged view of the AA range in FIG. FIG. 3 is an enlarged view of the BB range in FIG. FIG. 4(a) is an enlarged view of the CC range in FIG. 1, and FIG. 4(b) is a longitudinal sectional view of the cooling panel. FIG. 5 is a perspective view of the cooling panel of FIGS. 4(a) and 4(b). FIG. 6 is an enlarged view of a range corresponding to the AA range when using a decompression device different from the water supply system of FIG.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. First, the configuration of the poultry house 10 equipped with the water supply system of this embodiment will be described. The poultry house 10 is a rectangular parallelepiped building surrounded by four walls. It is shorter and has an elongated shape with a length of 5 to 40 meters.

The internal space of the poultry house 10 accommodates a large number of cage rows 70 in which a plurality of cages 60 are arranged in series in one horizontal direction. The cage rows 70 are stacked in multiple stages, and multiple rows are arranged side by side in a direction perpendicular to the extending direction of the cage rows 70 . The direction in which the row of cages 70 extends is the longitudinal direction of the poultry house 10 connecting the walls 11 and 12 .

A pair of opposing walls 11 and 12 are provided with an inlet 21 and an outlet 22, respectively. The inlet 21 and the outlet 22 are provided with a large area of 1/2 or more of the area of the entire walls 11 and 12, respectively. Side wall inlets (not shown) are provided at the top of each of the other pair of walls 13 parallel to the cage row 70 .

A plurality of large-sized exhaust fans 22f are attached to the exhaust port 22 vertically and horizontally. By forcibly discharging air from the exhaust port 22 by operating the exhaust fan 22f, the internal space of the poultry house 10 is made to have a negative pressure, and air is drawn from the outside through at least one of the inlet 21 and the side wall inlet. By taking in, the poultry house 10 can be ventilated.

More specifically, when the outside air temperature is low, such as in winter, ventilation is performed in the first mode in which the air inlet 21 is closed and outside air is taken in through the side wall air inlet. The side wall inlet is provided with a device (not shown) for adjusting its opening/closing and degree of opening.

On the other hand, when the outside temperature is high, such as in summer, ventilation is performed in the second mode in which air is taken in from the air inlet 21 . In the second mode, since the air is circulated straight between the opposing walls 11 and 12, the air circulates at a high speed, and the internal space is cooled with outside air having a temperature lower than the temperature inside the poultry house 10, and ventilation is performed. can be done. Ventilation can also be provided in a third mode in which air is drawn in through both the inlet 21 and the side wall inlet.

The air inlet 21 is covered with the panel material 35 of the cooling panel 30 , and the air flowing into the poultry house 10 through the air inlet 21 is cooled by the panel material 35 . Specifically, as shown in FIGS. 5 and 4B, the cooling panel 30 includes a pair of side frames 31, an upper frame 32 connecting the upper ends of the pair of side frames 31, and a pair of A plurality of panel members 35 are held by a lower frame 33 connecting the lower ends of the side frames 31 . The upper frame 32 is fixed to the wall 11 above the inlet 21 and the lower frame 33 is fixed to the wall 11 below the inlet 21 .

The upper frame 32 holds a supply pipe 36 for supplying water to the upper surface of the panel material 35 , and the supply pipe 36 is connected to the upper frame 32 and the panel material through holes 31 h provided through the side frame 31 . It is inserted in the space between 35. A large number of small holes (not shown) are provided through the peripheral surface of the portion of the supply pipe 36 located inside the upper frame 32 .

The lower frame 33 has a net-like support member 33c above its bottom surface 33b, on which the panel material 35 is placed. Therefore, a gutter-like space S is formed between the lower end of the panel member 35 and the bottom surface 33b of the lower frame 33. As shown in FIG. A hole 33h is formed through the bottom surface 33b of the lower frame 33, and a pipe 51 connected thereto extends downward.

The panel material 35 is made of a paper material that is highly absorbent and retains water and is resistant to wetting. Such a paper material is formed into a shape in which small corrugations are repeated, and by laminating many layers while shifting the corrugations, the surface area is increased and air permeability is provided.

In the cooling panel 30 configured as described above, when water is sent to the supply pipe 36, the water flowing out from the small holes in the peripheral surface of the supply pipe 36 drips onto the upper surface of the panel material 35, and the panel material 35 is wetted by the permeation of the water. do. When this moisture evaporates, the heat of vaporization is taken away, and the temperature of the panel material 35 becomes low. As a result, the air flowing into the poultry house 10 through the air inlet 21 is cooled while passing through the panel material 35 .

The water flowing down the panel material 35 without vaporization passes through the net-like support member 33c, is collected in the trough-like space S, and is discharged to the outside through the pipe 51. As shown in FIG. A water tank 40 is provided below the pipe 51, and the water flowing down the pipe 51 is stored here. The stored water is sent to the supply pipe 36 through the pipe 52 by the operation of the pump P, and drips onto the upper surface of the panel material 35 again. The water flowing down the panel member 35 is collected in the gutter-like space S, and thereafter circulates similarly.

Water is supplied from the outside through a pipe 53 to replenish the vaporized and diffused water in the water tank 40 . Here, a case is illustrated in which the valve 41 is opened and closed by displacement of the floating ball 42 according to the water level of the water tank 40 to keep the water level constant. The valve 41 having the floating ball 42 in this embodiment corresponds to the "constant water level valve" of the present invention.

Next, the water supply system of this embodiment will be described. The water supply system incorporates the cooling panel 30 used for ventilation of the poultry house 10 as described above into a system for supplying water to the chickens. The water supply system comprises a pipe structure consisting of a water supply pipe 3 with a water supply 4 , an upstream pipe 1 and a discharge pipe 6 . This pipe structure further includes a pressure reducing device 2 provided between the upstream pipe 1 and the water supply pipe 3 and an on-off valve 5 provided between the water supply pipe 3 and the discharge pipe 6 .

The water supply system includes a cooling panel 30 having a panel material 35 covering the inlet 21 of the poultry house 10, a supply pipe 36 for supplying water to the panel material 35, and a water tank provided below the cooling panel 30. 40 and a pump P for sending the water in the water tank 40 to the supply pipe 36 .

More specifically, the water supply pipe 3 is arranged longitudinally along each cage row 70 . Each water supply pipe 3 is provided with a plurality of water supply devices 4 such that the number per cage 60 is the same. Each water supply device 4 has a valve body 4b that appears and disappears with respect to the main body 4a by vertical movement. When the bird pushes up the valve body 4b with its beak, the flow path is opened and water flows down.

Below the water supply pipe 3, a receiving gutter 9 is arranged in parallel with the water supply pipe 3 and is open upward. The receiving gutter 9 receives water that is spilled or scattered when the birds operate the waterer 4 to drink, and prevents the living space of the birds and the excrement removal belt (not shown) from getting wet. It is for

The upstream pipe 1 is a pipe that sends water from a water supply source such as a tap water supply to the water supply pipe 3 . The upstream pipe 1 branches into the same number as the water supply pipe 3, and is connected to the upstream end of the water supply pipe 3 via a pressure reducing valve 2 as a pressure reducing device. The pressure reducing valve 2 reduces the pressure of the water sent from the water supply source and allows it to flow into the water supply pipe 3 . As a result, when the bird operates the waterer 4, the water is prevented from impeding the bird's drinking due to the forceful jetting out of the water.

A water pressure indicator 7 is attached to the pressure reducing valve 2 for checking the pressure of water flowing into the water supply pipe 3 . Here, as the water pressure indicator 7, a transparent pipe 7p erected upward and a float 7f housed in the pipe 7p are provided, and the water pressure in the water supply pipe 3 is measured at the height of the float 7f. A simple configuration that can be confirmed by is exemplified. A water pressure indicator 7 having a similar structure is also attached near the downstream end of the water supply pipe 3 .

A downstream end of each water supply pipe 3 is connected to a discharge pipe 6 via an on-off valve 5 . In this embodiment, a case is illustrated in which a plurality of water supply pipes 3 arranged along each cage row 70 stacked in a plurality of stages are connected to one discharge pipe 6 . The discharge pipe 6 descends from the downstream end of the water supply pipe 3 in the uppermost stage while sequentially connecting the downstream end of the water supply pipe 3 one level below, and then extends near the floor surface of the poultry house 10 at a single height, It penetrates the wall 11 and reaches above the water tank 40 . That is, the discharge pipe 6 does not have a portion whose height increases from its upstream end to its downstream end. The water level of the water tank 40 kept constant by the valve 41 having the floating ball 42 is set lower than the height of the downstream end of the discharge pipe 6 .

In the water supply system configured as described above, in the closed mode in which the on-off valve 5 is closed to seal the downstream end of the water supply pipe 3, the amount of water flowing out of the water supply device 4 due to the operation of the bird is released from the upstream pipe 1 to the pressure reducing valve 2. and supplied to the water supply pipe 3. Water is supplied to the birds in this sealed mode when it is difficult to warm the water even if it stays in the water supply pipe 3, such as when the temperature is not high.

Since the water pressure indicator 7 is attached to the water supply pipe 3, it can be confirmed whether the water pressure in the water supply pipe 3 is suitable for the birds to drink. In addition, since the water pressure indicator 7 is attached to two places near the upstream end and near the downstream end of the water supply pipe 3, even if pipe clogging or water leakage occurs in the middle of the water supply pipe 3, it can be detected quickly. can be done.

When the water stays in the water supply pipe 3 and becomes warm, the on-off valve 5 is opened to set the discharge mode. The sealing mode may be switched to the ejection mode intermittently, or the ejection mode may be switched continuously. In the discharge mode, water flows from the water supply pipe 3 to the discharge pipe 6, and the water supply pipe 3 is supplied with fresh, unheated water from the water supply. Therefore, even in the summer when the temperature is high, the birds can be fed with unheated water.

If the water discharged from the water supply pipe 3 were to be discarded, it would be wasted both as a resource and in terms of cost. On the other hand, in this embodiment, the water flowing from the water supply pipe 3 to the discharge pipe 6 flows through the discharge pipe 6 to the downstream end and is led to the water tank 40 below the cooling panel 30 . Since the water in the water tank 40 is circulated and used as the water supplied to the panel member 35, the water discharged from the water supply pipe 3 can also be used without waste.

The cooling panel 30 is equipment that a large poultry farm should preferably have. Moreover, the cooling panel 30 is used to ventilate the poultry house 10 when the temperature is high enough to cause the water in the water supply pipe 3 to heat up, and the pump P that sends water from the water tank 40 to the supply pipe 36 also operates. I am letting Therefore, in order to introduce the water supply system of this embodiment, only the on-off valve 5 and the discharge pipe 6 need to be newly added. It is possible to suppress an increase in the water temperature due to the retention of water in the water supply pipe 3 while keeping it.

In addition, even in the discharge mode, the water sent to the water supply pipe 3 has its water pressure reduced through the pressure reducing valve 2, and the water pressure inside the water supply pipe 3 does not increase. Therefore, even in the discharge mode, the bird can take in the water flowing through the water supply pipe 3 through the water supply 4 without any trouble. In addition, since the water whose water pressure has been reduced through the pressure reducing valve 2 is sent to the water tank 40 through the discharge pipe 6, the water supply amount per unit time can be suppressed, and a large amount of water is sent to the water tank 40. A continuous situation can be avoided, and it is easy to balance the amount of water sent from the water tank 40 to the supply pipe 36. - 特許庁

Furthermore, the discharge pipe 6 does not have a portion whose height increases from its upstream end to its downstream end, and the water level in the water tank 40, which is held constant, is lower than the height of the downstream end of the discharge pipe 6. is set. Therefore, the water discharged from the water supply pipe 3 does not need power such as a pump for sending the water to the water tank 40, and the water can be easily delivered to the water tank 40 only by the water pressure reduced through the pressure reducing valve 2 and the action of gravity. can send

Although the present invention has been described above with reference to preferred embodiments, the present invention is not limited to the above embodiments, and various improvements and design changes are possible without departing from the scope of the present invention. is.

For example, the on-off valve 5 that switches between the sealing mode and the discharge mode may be manually opened or closed, or may be opened or closed by a control device based on the detection of the water temperature or air temperature in the water supply pipe 3. good.

Moreover, the water pressure indicator 7 is not limited to the above configuration as long as it can detect the water pressure in the water supply pipe 3 . Furthermore, the constant water level valve is not limited to the above configuration as long as it can keep the water level in the water tank 40 constant.

Furthermore, in the above description, the decompression valve 2 was exemplified as the decompression device, but the decompression valve is not limited to the decompression valve 2 as long as it can reduce the water pressure of the water sent from the water supply source and allow it to flow into the water supply pipe 3. . For example, as shown in FIG. 6, a cistern 80 can be used as a pressure reducing device. The cistern 80 is a container open to the atmosphere, and is connected to the downstream ends of the upstream pipes 1 branched in the same number as the water supply pipes 3 . The downstream ends of the branched upstream pipes 1 each penetrate the upper portion of the peripheral wall of the cistern 80 and extend inward to form a water supply port 81 . The water supply port 81 is provided with a valve 85, and the water level is kept constant by opening and closing the valve 85 by displacing the floating ball 86 according to the water level. An outflow pipe 88 is connected to the lower portion of the cistern 80 . The outflow pipe 88 is positioned higher than the water supply pipe 3 and is connected to the upstream end of the water supply pipe 3 by a vertical connecting pipe 89 .

With such a configuration, the water sent from the water supply source through the upstream pipe 1 is temporarily stored in the cistern 80 and separated from the water supply source. When water flows out from the waterer 4 for the birds to drink, the corresponding amount of water is supplied from the cistern 80 to the water supply pipe 3 . Water pressure corresponding to the difference is applied. Therefore, it is possible to allow water with a pressure lower than the pressure of water sent from the water supply source to flow into the water supply pipe 3 . The pressure of the water flowing into the water supply pipe 3 can be set to a desired value by the difference between the water level inside the cistern 80 kept constant by the valve 85 and the height of the water supply pipe 3. The water pressure indicator 7 may not be provided in the vicinity of the upstream end of the . When the air temperature is high and the water in the water supply pipe 3 is warmed in the summer, the water stored in the cistern 80 is also discharged by opening the on-off valve 5 to set the discharge mode, and fresh water is supplied from the water supply source. is replenished.

Claims (1)

A water supply system for ingesting water to birds housed and reared in cages inside a poultry house,
a water supply pipe arranged along a row of cages in which a plurality of cages are horizontally arranged;
a plurality of water supply devices are provided for each of the water supply pipes, and push up a valve body to cause water in the water supply pipe to flow out;
a decompression device connected to an upstream end of the water supply pipe, for reducing water pressure of water sent from a water supply source and allowing the water to flow into the water supply pipe;
It is connected to the downstream end of the water supply pipe and switches between a sealing mode in which the downstream end of the water supply pipe is sealed and a discharge mode in which the downstream end of the water supply pipe communicates with a discharge pipe. an on-off valve;
Provided with a panel material that has air permeability and covers the inlet of the poultry house, and a supply pipe that supplies water to the upper surface of the panel material, the temperature becomes low due to the heat of vaporization of the water that has permeated the panel material. a cooling panel for cooling the air passing through the air inlet with the panel material;
a water tank provided below the cooling panel for receiving water flowing down the panel material;
a pump for sending water in the water tank to the supply pipe;
The discharge pipe guides the water discharged from the water supply pipe to the water tank.the law of nature,
downstream from the connection with the water supply pipe, the discharge pipe extends at a single height along the floor of the poultry house and reaches the water tank;
The water tank is provided with a constant water valve for setting the water level of the water tank lower than the downstream end of the discharge pipe, without a pump for sending the water discharged from the water supply pipe to the water tank. Therefore, the water discharged from the water supply pipe is sent to the water tank only by the water pressure reduced through the decompression device and the action of gravity.
A water supply system characterized by:

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