JPWO2020084780A1 - Water supply system - Google Patents

Abstract

The configuration of the water supply system for feeding the birds raised in the cage (60) is the water supply pipes (3) arranged along the cage row (70) and the water supply pipes provided with a plurality of water supply pipes. A vessel (4), a decompression device (2) that reduces the water pressure and allows water sent from the water supply source to flow into the water supply pipe, a sealing mode in which the downstream end of the water supply pipe is sealed, and a water supply pipe. An on-off valve (5) that switches to any of the discharge modes whose downstream end communicates with the discharge pipe (6), and a panel that is breathable and covers the air inlet (21) of the poultry house (10). A cooling panel (30) provided with a material (35) and a supply pipe (36) for supplying water to the upper surface of the panel material, and cooling the air passing through the inlet with the panel material whose temperature has become low due to the heat of vaporization of water. A water storage tank (40) provided below the water tank (40) for receiving the water flowing down the panel material and a pump (P) for sending the water in the water storage tank to the supply pipe are provided, and the water flowing through the discharge pipe is provided. Lead to the water tank.

Description

The present invention relates to a water supply system for feeding water to birds raised in a poultry farm.

In large poultry farms that raise a large number of birds in a large number of cages, water supply to the birds is also labor-saving. Generally, water supply pipes are arranged along a row of cages in which a plurality of cages are arranged side by side in the horizontal direction, and water with reduced water pressure is supplied to the water supply pipes from a water supply source such as a water supply. The water supply pipe is provided with a plurality of water dispensers, and the downstream end of the water supply pipe is sealed. The water dispenser opens and closes the flow path by a valve body that appears and disappears in the vertical direction with respect to the main body. When the bird pushes up the valve body with its beak, the flow path is opened and water flows down, allowing the bird to drink. Then, the water that has flowed out through the water dispenser, that is, the amount of water that the bird has drunk, is newly supplied from the water supply source to the water supply pipe.

With the above mechanism, water tends to stay in the water supply pipe, so there is a problem that the water warms up when the temperature is high, such as in summer. The above-mentioned water dispenser has a structure in which water does not flow out unless the bird operates by itself, but the bird tends to be reluctant to drink warm water when the temperature is high, so that the amount of water intake is reduced. When the amount of water intake decreases, the health condition of the bird deteriorates, and as the amount of water consumed decreases, the degree of water retention increases, resulting in a vicious cycle in which the water becomes warmer.

Therefore, a water supply device has been proposed in which the water supplied to the water supply pipe is circulated through the tank, the water in the tank is pumped to the cooling device when the water temperature rises, and the cooled water is returned to the tank (patented). Reference 1). This water supply device has the advantage that cooled water is supplied to the water supply pipe even when the temperature is high. Since there are many required configurations and the structure is complicated, there is a problem that the installation cost increases and the running cost also increases. In addition, since drinking water is a circulating type, it is necessary to take great care to prevent water pollution.

In addition, the water supply pipe has a double structure of an inner pipe and an outer pipe, and a water dispenser is provided in the outer pipe to allow drinking water to flow between the outer pipe and the inner pipe, while cooling water is supplied to the inner 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). The cooling water is circulated through the tank, the water in the tank is sent to the cooling device based on the temperature detection, and the cooled water is returned to the tank. Similar to the device of Patent Document 1, this water supply device has a complicated structure with many necessary configurations such as a tank, a cooling device, a pump for sending water from the tank to the cooling device, and a pump for sending 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 double-structured water supply pipe is used. Therefore, the cost is high, and the existing poultry farm requires a large-scale construction to replace the conventional water supply pipe, which is difficult to introduce.

With the intention of solving this problem, a water supply device has been proposed in which a cooling pipe is externally arranged along the water supply pipe and the cooling pipe and the water supply pipe are covered with a heat insulating member (patented). Reference 3). The cooling water is circulated through the tank, the water in the tank is sent to the cooling device based on the temperature detection, and the cooled water is returned to the tank, which is the same as the device in Patent Document 2. Therefore, 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 the existing water supply pipe can be used as it is, but the work of arranging the cooling pipe along the water supply pipe and further covering it with the heat insulating member is complicated. In a large poultry farm, there are a considerable number of water supply pipes, and the length of each is also large, because the cage rows with many cages arranged horizontally are stacked in multiple stages and the many rows are arranged side by side. long. Therefore, the work of arranging the cooling pipes along all the water supply pipes and covering them with the heat insulating member has to be quite large-scale.

Japanese Unexamined Patent Publication No. 2005-237241 Japanese Unexamined Patent Publication No. 2009-296943 Japanese Unexamined Patent Publication No. 2015-80415

Therefore, in view of the above circumstances, the present invention can suppress an increase in water temperature due to retention of water in a water supply pipe for distributing drinking water of birds raised in a cage with a simple configuration. The issue is to provide a system.

In order to solve the above problems, the water supply system according to the present invention is
"It is a water supply system that allows birds kept in cages inside the poultry house to ingest water.
A water supply pipe in which a plurality of the cages are arranged along a row of cages arranged horizontally.
A water dispenser is provided for each of the water supply pipes, and the water in the water supply pipe is discharged by pushing up the valve body.
A decompression device connected to the upstream end of the water supply pipe and allowing water sent from the water supply source to flow into the water supply pipe by reducing the water pressure.
The mode is switched between a sealing mode in which the downstream end of the water supply pipe is sealed and 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 the discharge pipe. On-off valve and
A panel material that is breathable and covers the air inlet of the poultry house, and a supply pipe that supplies water to the upper surface of the panel material are provided, and the temperature becomes low due to the heat of vaporization of water that has permeated the panel material. A cooling panel that cools the air passing through the air inlet with the panel material,
A water tank provided below the cooling panel to receive the water flowing down the panel material, and
A pump that sends water from the water tank to the supply pipe is provided.
The discharge pipe guides the water discharged from the water supply pipe to the water tank. "

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

When the water stays in the water supply pipe and becomes warm, the on-off valve is opened to switch from the sealing mode to the discharging mode. As a result, the water in the water supply pipe flows out to the discharge pipe, and fresh unheated water is supplied from the water supply source to the water supply pipe. Therefore, even when the temperature is high, such as in summer, the birds can ingest unwarmed water.

If the water discharged from the water supply pipe is simply to be disposed of, it will be wasted both as a resource and in terms of cost. On the other hand, in this configuration, the discharged water is guided to the water storage 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.

The cooling panel is a facility that should be provided in a large poultry farm. When the temperature is high, such as when the water in the water supply pipe warms up, the cooling panel is used to ventilate the poultry farm, and the pump that sends water from the water tank to the supply pipe is also operating. Therefore, in order to introduce the water supply system with this configuration, there are few configurations that should be newly added to the conventional facility, and the water temperature rises due to the retention of water in the water supply pipe while keeping the system simple. Can be suppressed.

In addition, even in the discharge mode, the water sent to the water supply pipe reduces the water pressure through the decompression device. Therefore, even in the discharge mode, the water pressure in the water supply pipe does not increase, and the drinking water of the bird via the water dispenser is not hindered. In addition, since the water whose water pressure has been reduced via the decompression device is sent to the water tank via the discharge pipe, the amount of water sent per unit time can be suppressed, and the situation where a large amount of water continues to be sent to the water tank is avoided. can do.

The water supply system according to the present invention has, in addition to the above configuration,
"The water tank is equipped with a constant water level valve that keeps the water level constant.
The discharge pipe does not have a portion where the height increases from the upstream end to the downstream end, and the water level of the water tank kept constant by the constant water level valve is the downstream end of the discharge pipe. It can be assumed that it is set lower than the height of.

In this configuration, water is simply sent to the water tank only by the action of water pressure and gravity reduced through the decompression device, without the need for power such as a pump to send the water discharged from the water supply pipe to the water tank. be able to.

As described above, according to the present invention, a water supply system capable of suppressing an increase in water temperature due to retention of water in a water supply pipe for distributing drinking water of birds raised in a cage with a simple configuration. Can be provided.

FIG. 1 is a schematic configuration diagram of a poultry house provided with a water supply system according to an embodiment of the present invention. FIG. 2 is an enlarged view of the range AA in FIG. FIG. 3 is an enlarged view of the BB range in FIG. FIG. 4A is an enlarged view of the CC range in FIG. 1, and FIG. 4B is a vertical cross-sectional view of the cooling panel. FIG. 5 is a perspective view of the cooling panel of FIGS. 4A and 4B. FIG. 6 is an enlarged view of a range corresponding to the AA range when a decompression device different from the water supply system of FIG. 1 is used.

Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. First, the configuration of the poultry house 10 provided with the water supply system of the present embodiment will be described. The poultry house 10 is a rectangular parallelepiped building surrounded by four walls, and the length between the pair of walls 11 and 12 facing each other among the four walls is 50 to 200 meters, and between the other pair of walls 13. It is shorter than that and has an elongated shape of 5 to 40 meters.

In the internal space of the poultry house 10, a large number of cage rows 70 in which a plurality of cages 60 are continuously arranged in one horizontal direction are housed. The cage rows 70 are stacked in multiple stages, and a large number of rows are arranged side by side in a direction orthogonal to the direction in which the cage rows 70 extend. The direction in which the cage row 70 extends is the longitudinal direction of the poultry house 10 connecting the wall 11 and the wall 12.

The pair of walls 11 and 12 facing each other are provided with an air inlet 21 and an exhaust port 22, respectively. The air inlet 21 and the exhaust port 22 are provided in a large area of 1/2 or more of the total area of the walls 11 and 12, respectively. A side wall inlet (not shown) is provided above each of the other pair of walls 13 parallel to the cage row 70.

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

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

On the other hand, when the outside air 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 air is circulated straight between the opposing walls 11 and 12, the air circulates at a high speed, and ventilation is performed while cooling the internal space with the outside air lower than the temperature inside the poultry house 10. Can be done. Ventilation can also be performed in the third mode in which air is taken in through both the air inlet 21 and the side wall air 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 side frames. A plurality of panel members 35 are held by the lower frame 33 connecting the lower ends of the side frame 31. The upper frame 32 is fixed to the wall 11 above the air inlet 21, and the lower frame 33 is fixed to the wall 11 below the air inlet 21.

The upper frame 32 holds a supply pipe 36 that supplies water to the upper surface of the panel material 35, and the supply pipe 36 passes through the upper frame 32 and the panel material through the hole portion 31h formed through the side frame 31. It is inserted in the space between 35 and 35. In the supply pipe 36, a large number of small holes (not shown) are formed through the peripheral surface of the portion located inside the upper frame 32.

The lower frame 33 is provided with a net-like support member 33c above the bottom surface 33b, on which the panel material 35 is placed. Therefore, a gutter-shaped space S is formed between the lower end of the panel material 35 and the bottom surface 33b of the lower frame 33. 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 rich in water absorption and water retention and has resistance to wetting. Such a paper material is formed into a shape in which small corrugations repeat, and a large number of such paper materials are laminated while shifting the corrugations to increase the surface area and provide air permeability.

In the cooling panel 30 having the above configuration, when water is sent to the supply pipe 36, the water flowing out from the small holes on the peripheral surface of the supply pipe 36 is dropped onto the upper surface of the panel material 35, and the panel material 35 is moistened by the permeation of water. do. When this water 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 as it passes through the panel material 35.

The water that has flowed down the panel material 35 without vaporizing passes through the net-like support member 33c, is collected in the gutter-shaped space S, and is discharged to the outside through the pipe 51. A water storage 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 via the pipe 52 by the operation of the pump P, and is dropped onto the upper surface of the panel material 35 again. The water flowing down the panel material 35 is collected in the gutter-shaped space S, and thereafter circulates in the same manner.

Water is supplied to the water storage tank 40 from the outside through a pipe 53 in order to replenish the amount of water that has vaporized and diffused. Here, an example is illustrated in which the valve 41 opens and closes to keep the water level constant due to the displacement of the floating ball 42 according to the water level of the water storage tank 40. The valve 41 having the floating ball 42 in the present 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 the system for supplying water to the birds. The water supply system includes a pipe structure including a water supply pipe 3 including a water supply device 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.

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

More specifically, the water supply pipes 3 are arranged in the longitudinal direction along each cage row 70. Each water supply pipe 3 is provided with a plurality of water dispensers 4 so that the number of each of the cages 60 is the same. Each water dispenser 4 includes a valve body 4b that appears and disappears with respect to the main body 4a due to vertical movement, and when a bird pushes up the valve body 4b with a beak, the flow path is opened and water flows down.

Below the water supply pipe 3, a gutter 9 opened upward is arranged in parallel with the water supply pipe 3. The gutter 9 receives water that has been spilled or scattered when the bird operates the water dispenser 4 to drink water, and prevents the bird's living space and the dung belt (not shown) from getting wet. It is for doing.

The upstream pipe 1 is a pipe that sends water from a water supply source such as a water supply to a water supply pipe 3. The upstream pipe 1 is branched to the same number as the water supply pipes 3 and then 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 causes the water to flow into the water supply pipe 3. As a result, when the bird operates the water dispenser 4, it is prevented that the water spouts vigorously and interferes with the drinking of the bird.

A water pressure indicator 7 for checking the pressure of water flowing into the water supply pipe 3 is attached to the pressure reducing valve 2. 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 adjusted to the height of the float 7f. An example of a simple configuration that can be confirmed in. Further, a water pressure indicator 7 having a similar configuration is also attached in the vicinity of the downstream end of the water supply pipe 3.

The downstream ends of each water supply pipe 3 are connected to the discharge pipe 6 via an on-off valve 5. In the present embodiment, a case where a plurality of water supply pipes 3 arranged along each of the cage rows 70 stacked in a plurality of stages are connected to one discharge pipe 6 is illustrated. The discharge pipe 6 descends from the downstream end of the uppermost water supply pipe 3 while connecting the downstream ends of the lower water supply pipe 3 in order, 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 where the height increases from the upstream end to the downstream end. The water level of the water storage tank 40, which is kept constant by the valve 41 having the float 42, is set lower than the height of the downstream end of the discharge pipe 6.

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

Since the water pressure indicator 7 is attached to the water supply pipe 3, it is possible to confirm whether or not the water pressure in the water supply pipe 3 is suitable for drinking water of birds. Further, since the water pressure indicator 7 is attached to the water supply pipe 3 at two locations, near the upstream end and near the downstream end, even if a pipe clogging or water leakage occurs in the middle of the water supply pipe 3, it can be promptly detected. 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 intermittently switched to the discharging mode, or the discharging mode may be continuously set. In the discharge mode, water flows out from the water supply pipe 3 to the discharge pipe 6, and fresh unwarmed water is supplied to the water supply pipe 3 from the water supply source. Therefore, even when the temperature is high, such as in summer, the birds can ingest unwarmed water.

If the water discharged from the water supply pipe 3 is targeted for disposal, it is wasted both as a resource and in terms of cost. On the other hand, in the present embodiment, the water flowing out from the water supply pipe 3 to the discharge pipe 6 circulates through the discharge pipe 6 to the downstream end and is guided to the water storage tank 40 below the cooling panel 30. Since the water in the water storage tank 40 is circulated and used as water supplied to the panel material 35, the water discharged from the water supply pipe 3 can also be used without waste.

The cooling panel 30 is a facility that is desirable to be provided in a large poultry farm. Moreover, the cooling panel 30 is used for ventilation of the poultry house 10 at a time when the temperature is high such that the water in the water supply pipe 3 becomes warm, and the pump P that sends water from the water storage tank 40 to the supply pipe 36 also operates. I'm letting you. Therefore, in order to introduce the water supply system of this embodiment, the configuration that needs to be newly added is about the on-off valve 5 and the discharge pipe 6, and the system can be simplified while effectively utilizing the existing equipment. While keeping it, it is possible to suppress an increase in water temperature due to the retention of water in the water supply pipe 3.

In addition, even in the discharge mode, the water sent to the water supply pipe 3 has the water pressure reduced through the pressure reducing valve 2, and the water pressure in the water supply pipe 3 does not increase. Therefore, even in the discharge mode, the bird can ingest the water circulating in the water supply pipe 3 through the water supply device 4 without any trouble. Further, since the water whose water pressure is reduced via the pressure reducing valve 2 is sent to the water tank 40 via the discharge pipe 6, the amount of water sent per unit time can be suppressed, and a large amount of water is sent to the water tank 40. It is possible to avoid the situation of continuing, and it is easy to balance with the amount of water sent from the water tank 40 to the supply pipe 36.

Further, the discharge pipe 6 does not have a portion where the height increases from the upstream end to the downstream end, and the water level of the water storage tank 40 held constant is lower than the height of the downstream end of the discharge pipe 6. It is set. Therefore, the water discharged from the water supply pipe 3 does not require the power of a pump or the like to be sent to the water tank 40, and the water to the water tank 40 can be easily reached only by the action of the water pressure and gravity reduced through the pressure reducing valve 2. Can be sent.

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 can be made without departing from the gist of the present invention. Is.

For example, the on-off valve 5 that switches between the sealing mode and the discharging mode may be opened or closed manually, 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.

Further, the water pressure indicator 7 is not limited to the above configuration as long as it can know the water pressure in the water supply pipe 3. Further, the constant water level valve is not limited to the above configuration as long as the water level in the water storage tank 40 can be kept constant.

Further, although the pressure reducing valve 2 is exemplified as the pressure reducing device in the above, the pressure reducing valve 2 is not limited as long as the water sent from the water supply source can be made to flow into the water supply pipe 3 by reducing the water pressure. .. For example, as shown in FIG. 6, the cisturn 80 can be used as the decompression device. The cistern 80 is a container open to the atmosphere, and is connected to the downstream end of each of the upstream pipes 1 having the same number of branches as the water supply pipe 3. The downstream ends of the branched upstream pipes 1 penetrate the upper part of the peripheral wall of the cistern 80 and extend inward to form a water supply port 81. A valve 85 is provided at the water supply port 81, and the water level is kept constant by opening and closing the valve 85 due to the displacement of the floating ball 86 according to the water level. An outflow pipe 88 is connected to the lower part of the cisturn 80. The outflow pipe 88 is located 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 via the upstream pipe 1 is once stored in the cisturn 80 and separated from the water supply source. When water flows out from the water supply device 4 for drinking water of birds, that amount of water is supplied from the cisturn 80 to the water supply pipe 3, but the supplied water is the water level of the cisturn 80 and the height of the water supply pipe 3. Water pressure corresponding to the difference is applied. Therefore, water having a pressure lower than the pressure of the water sent from the water supply source can flow into the water supply pipe 3. Since 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 system turn 80 held constant by the valve 85 and the water supply pipe 3 and the height of the water supply pipe 3, the water supply pipe 3 It is not necessary to provide the above-mentioned water pressure indicator 7 in the vicinity of the upstream end of the above. When the temperature is high and the water in the water supply pipe 3 becomes warm, such as in summer, the water contained in the systurn 80 is also discharged by opening the on-off valve 5 to set the discharge mode, and fresh water is discharged from the water supply source. Is replenished.

Claims (2)

It is a water supply system for feeding water to birds kept in cages inside the poultry house.
A water supply pipe in which a plurality of the cages are arranged along a row of cages arranged horizontally.
A water dispenser is provided for each of the water supply pipes, and the water in the water supply pipe is discharged by pushing up the valve body.
A decompression device connected to the upstream end of the water supply pipe and allowing water sent from the water supply source to flow into the water supply pipe by reducing the water pressure.
The mode is switched between a sealing mode in which the downstream end of the water supply pipe is sealed and 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 the discharge pipe. On-off valve and
A panel material that is breathable and covers the air inlet of the poultry house, and a supply pipe that supplies water to the upper surface of the panel material are provided, and the temperature becomes low due to the heat of vaporization of water that has permeated the panel material. A cooling panel that cools the air passing through the air inlet with the panel material,
A water tank provided below the cooling panel to receive the water flowing down the panel material, and
A pump that sends water from the water tank to the supply pipe is provided.
The discharge pipe is a water supply system characterized in that the water discharged from the water supply pipe is guided to the water storage tank. The water tank is equipped with a constant water level valve that keeps the water level constant.
The discharge pipe does not have a portion where the height increases from the upstream end to the downstream end, and the water level of the water tank kept constant by the constant water level valve is the downstream end of the discharge pipe. The water supply system according to claim 1, wherein the water supply system is set lower than the height of the above.

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