JP5607497B2 - Fire extinguishing equipment - Google Patents

Description

The present invention relates to a fire extinguishing equipment in which, for example, a closed sprinkler head that operates by receiving a hot air current from a fire is installed in a pipe that supplies water supply.

  Conventionally, in general houses, apartment houses, group homes, and the like, there is known a fire extinguishing facility in which a closed sprinkler head is connected to the same pipe as the water supply and the fire is extinguished using the water supply in the event of a fire.

  Here, the water pressure to the sprinkler head of a general house is required to be, for example, 0.05 MPa, and sufficient fire extinguishing performance can be obtained at the time of fire by ensuring a water supply pressure exceeding 0.05 MPa from the water supply.

  FIG. 13 shows a conventional water supply direct fire extinguishing system. For example, a water supply pipe 10 drawn into a general house is branched into a general equipment pipe 10a and a fire extinguishing equipment pipe 10b. A faucet 16 for the hand-washing 12 and bathtub 15 is connected to the general equipment piping 10a.

  For example, a closed sprinkler head 18 is connected to the fire extinguishing equipment pipe 10b for each room, and is connected to a water supply tank of the toilet 14 at the end of the pipe. The closed-type sprinkler head 18 has a head opening closed by a valve member held by a heat-sensitive mechanism. When the heat-sensitive function reaches a predetermined temperature in response to a thermal air current caused by a fire, the valve member is detached by thermal decomposition. Open the head opening and sprinkle the tap water.

  Further, a terminal test device 100 is provided at the end of the fire extinguishing equipment pipe 10 b so that the water discharge test can be performed without actually discharging water from the sprinkler head 18. In the terminal test apparatus 100, a T-type joint 104 is connected after the gate valve 102, and a pressure gauge 106 is connected to the branch port side of the T-type joint 104 via the gate valve 105. Further, a terminal test valve 108 is connected after the T-shaped joint 104, and an orifice 110 for supplying a water discharge flow rate corresponding to the operation of one sprinkler head 18 is connected to the secondary side thereof, and the terminal is drained. . In addition, the terminal test apparatus 100 is provided outdoors, and the test can be performed by discharging water outdoors.

  FIG. 14 shows a terminal test apparatus 100 that is actually installed. For example, a gate valve 102, a T-type joint 104, a pipe 112, a terminal test valve 108, and an orifice 110 are connected in the vertical direction to form a T-type. A pressure gauge 106 is connected to a branch port of the joint 104 via a piping 114 and a gate valve 105.

  In the test operation by the end test apparatus 100, the gate valve 102 is opened to introduce tap water, and then the end test valve 108 is opened to flow a test flow rate corresponding to the operation of one sprinkler head 18 to the orifice 110. In this state, the gate valve 105 is opened, the primary pressure of the orifice 110 is introduced into the pressure gauge 106, and the water discharge pressure is read. For example, if a water discharge pressure of 0.05 MPa or more is obtained, it is determined as appropriate.

Test closed gate valve 102 When finished, and drained by the flow of tap water that secondary pipe, and to close the terminal test valve 108 After draining is completed after a certain time.

JP-A-8-24360

  However, in such conventional fire extinguishing equipment, stagnant water is generated at the end test device 100 provided at the end of the fire extinguishing equipment pipe 10b and becomes dead water over a long period of time. It has an adverse effect on durability and has problems with hygiene.

  For example, in the case of the terminal test apparatus 100 shown in FIG. 13, the gate valve 102 is normally closed, and there is a problem that stagnant water is generated at the rising portion of the pipe on the primary side of the gate valve 102.

The secondary side of the gate valve 102 is drained by draining after the test, but the test by the terminal test device 100 is finished and the gate valve 102 is closed to drain the secondary side. If the terminal test valve 108 is closed in a state where water is not drained because there is a possibility of backflow from the T-shaped joint 104 side to the pressure gauge 106 side at the stage where the gate valve 102 is not visible, There is a problem that stagnant water is generated between the end test valves 108.

  In addition, the gate valve 102 is selected from a valve that has been certified by the Japan Water Works Association so that it may be connected to the water supply pipe, thereby preventing adverse effects due to corrosion. The pipes and devices on the side do not use certified ones, and there may be a case of backflow to the fire extinguishing equipment pipe 10b side, which has a problem in terms of hygiene. In particular, since the terminal test apparatus 100 is an apparatus used for fire extinguishing equipment, there are parts that have not been certified for water supply, and simply connecting to water supply piping may cause sanitary problems.

  Furthermore, the conventional terminal test apparatus 100 is provided with all of the gate valve 102, the T-shaped joint 104, the piping 112, the terminal test valve 108, the orifice 110, and the pressure gauge 106 as fixed equipment, and the apparatus is enlarged and installed. There is a problem that the space increases and the cost increases. Further, when the conventional terminal test apparatus 100 is installed in a cold region, it is necessary to wind a heat insulating material for preventing freezing around the entire apparatus, which further increases the size.

It is an object of the present invention to provide a fire extinguishing facility that prevents generation of stagnant water in a terminal test device and reduces the size of a fixed facility to reduce the size and cost.

The present invention relates to a fire extinguishing equipment equipped with a closed sprinkler head that operates by receiving a hot air current from a fire in a pipe.
A terminal test device is provided at the position of the pipe on the terminal side of the sprinkler head,
Terminal test equipment
A first retention prevention structure in which an inflow port and an outflow port are inserted and connected to a pipe, and the generation of stagnant water on the branch port side is prevented by a detour flow from the inflow port to the outflow port to the branch port. Multi-way joints,
A terminal test valve connected to the branch port of the first multi-way joint;
A first connecting member for detachably connecting a mating member to the secondary side of the terminal test valve;
A second connection member detachably attached to the first connection member;
A second multi-way joint having an inflow port connected to the second connection member;
A pressure gauge connected to the first outlet port of the second multi-way joint;
An orifice and drainage connection member connected to the second outlet port to the second multi-way joint;
The provided, a terminal test valve opening operation to be characterized in that the structure be tested water discharge pressure is displayed on a pressure meter when tested discharge water into the drainage channel connecting member through said orifice.

  Here, the first multi-way joint, the end test valve and the first connection member of the terminal test device constitute a fixed unit connected and fixed to the piping side, and the second connection member, the second multi-way joint, the pressure gauge, the orifice And a drainage channel connection member comprises the portable unit used by connecting to a fixed unit, when testing.

  A cover member is attached to the fixed unit.

The sprinkler head is a first sprinkler head having a water discharge flow rate of 30 liters per minute when the water discharge pressure is 0.05 MPa, or a second sprinkler head having a water discharge flow rate of 30 liters per minute when the water discharge pressure is 0.02 PMa. Yes,
When the first sprinkler head is connected to the pipe as the orifice, a first orifice that generates a pressure loss corresponding to a water discharge pressure of 0.05 MPa when the terminal test valve is opened is provided, and the second sprinkler is provided in the pipe. When the head is connected, a second orifice that generates a pressure loss corresponding to a water discharge pressure of 0.02 MPa when the terminal test valve is opened is provided.

  The hose connection joint is provided so that the first orifice or the second orifice can be exchanged.

The hose connection joint is provided so that the first orifice or the second orifice can be switched.

  According to the present invention, the first three-way joint, the terminal test valve, and the connection joint portion are connected and fixed as a fixed unit at a pipe position serving as a terminal of a sprinkler head provided in a pipe for water supply equipment such as a toilet water tank. A portable unit is composed of a connecting member to be connected to the connecting joint, a second three-way joint, a pressure gauge, and a drainage joint with a built-in orifice, and the terminal unit is connected to the fixed unit in the case of a terminal test. The equipment can be constructed and a water discharge test can be conducted, and it is only necessary to connect and fix a fixed unit that constitutes a part of the terminal test device to the fire extinguishing equipment. Can also be reduced.

  In addition, fixed units must be installed for each fire extinguishing equipment system in a general house, but portable units are maintained and managed by inspection personnel as common units for multiple fire extinguishing equipment, and are brought into the terminal test. Reduction can be achieved.

In addition, since the pipes equipped with the sprinkler and terminal test device fixing unit are connected to water-use equipment such as toilet tanks, no stagnant water is generated, and there is no adverse effect on the durability of the pipes and equipment. There are no hygiene problems.

Explanatory drawing which showed embodiment of the fire extinguishing equipment by this invention Explanatory drawing which showed the state which removed the portable unit from the fixed unit of the terminal test apparatus provided in FIG. Explanatory drawing which showed embodiment of the terminal test device by this invention in the state which separated the portable unit from the fixed unit Explanatory drawing which showed the cover mounting state with respect to the fixed unit of FIG. Explanatory drawing which showed embodiment of this invention which comprised the portable unit with respect to the fixed unit of FIG. 3, and comprised the terminal test apparatus. Sectional drawing which showed other embodiment of the interruption | blocking apparatus used with the fire-extinguishing equipment of this invention which has opened some flow paths by valve closing Explanatory drawing which showed embodiment of the 1st T-shaped coupling used by this invention Explanatory drawing which showed embodiment of the one-touch coupling used by this invention Explanatory drawing which showed embodiment of the one-touch connection member used by this invention Explanatory drawing which showed embodiment of the hose coupling used by this invention and the built-in orifice Explanatory drawing which showed other embodiment of this invention which enables exchange connection of two portable units from which an orifice differs Explanatory drawing which showed other embodiment of this invention which enables switching use of a different orifice. Explanatory drawing showing a conventional fire extinguisher connected directly to a conventional water supply pipe Explanatory drawing which took out and showed the piping part of the terminal test equipment provided in the conventional fire extinguishing equipment

  FIG. 1 is an explanatory view showing an embodiment of a fire extinguishing facility according to the present invention. In FIG. 1, for example, a water supply pipe 10 drawn into a general house is branched into a general equipment pipe 10a and a fire extinguishing equipment pipe 10b. A faucet 16 for the hand-washing 12 and bathtub 15 is connected to the general equipment piping 10a.

Sprinkler head 18 of the closed type, eg, separately for each room using is connected to T-fitting 15 having a residence preventing structure for fire extinguishing pipe 10b, ends of the fire fighting equipment the pipe 10b is connected to the water tank of toilets 14 Has been

  The closed-type sprinkler head 18 has a head opening closed by a valve member held by a heat-sensitive mechanism. When the heat-sensitive function reaches a predetermined temperature in response to a thermal air current caused by a fire, the valve member is detached by thermal decomposition. Open the head opening and sprinkle the tap water.

In the embodiment of the present invention for a fire extinguishing facility using such a water supply, a terminal test device 20 is provided at a pipe position serving as a terminal of the sprinkler head 18 connected to the fire extinguishing facility pipe 10b. The terminal test apparatus 20 includes a fixed unit 20a that is fixedly connected to the fire extinguishing equipment pipe 10b side, and a portable unit 20b that is detachable from the fixed unit 20a.

The fixed unit 20a includes a first T-type joint 22 having a stay prevention structure inserted and connected to the fire extinguishing equipment pipe 10b , a terminal test valve 24 connected to a branch port of the first T-type joint 22, and a terminal test valve. The one-touch coupling 26 is configured to connect the mating member to the secondary side of 24 by a one-touch operation.

On the other hand, the portable unit 20b includes a one-touch connection member 30 that is detachable from the one-touch joint 26 of the fixed unit 20a, a second T-type joint 28 that connects the one-touch connection member 30 to the inflow port, and a second T- type joint 28. outlet port while the connected pressure gauge 32 is connected to the other outlet port of the second T-shaped joint 28, and a hose coupling 36 with a built-in orifice 34. The orifice 34 flows a flow rate corresponding to the operation of one sprinkler head 18. For example, there are two types of sprinkler heads 18 directly connected to the water supply used in this embodiment: flow rate constants K43 and K30. The water discharge pressure of each sprinkler head with flow rate constants K43 and K30 at a water discharge flow rate of 30 liters / minute is K43 0.05 MPa.
K30 0.10 MPa
It becomes.

Thus when the flow water discharge flow of 30 l / min, to prepare an orifice 34 of diameter that generates discharge water pressure corresponding to the flow rate constant of the sprinkler head 18 will be used, the details of the post description To clarify. The member on the fixed unit 20a side that constitutes the terminal test apparatus 20 uses a lead-free material in consideration of environmental and hygiene. In particular, lead-free materials are used from the first T-shaped joint 22 to the end test valve 24 that are always filled.

FIG. 2 shows a state in which the portable unit is separated from the fixed unit of the terminal test apparatus shown in FIG. During normal operation, the first T-type joint 22, terminal test valve 24, and one-touch joint 26, which are equipment on the fixed unit 20a side of the end test apparatus 20 , are fixedly connected to the fire extinguishing equipment pipe 10b. It has been removed and stored and managed by the inspection personnel.

  The portable unit 20b is not a unit dedicated to the fixed unit 20a provided in a specific fire extinguishing facility, but can be used as a common unit for a fire extinguishing facility of another system or another building in which the same fixed unit 20a is fixedly installed.

Normally, the end test valve 24 on the fixed unit 20a side is closed, and the general equipment pipe 10b supplies tap water to the water supply tank for use of the toilet 14, and even if the end test device 20 is provided, the second test valve will be described later. No stagnant water is generated on the primary side of the end test valve 24 due to the structure of the T-type joint 22 of one.

  When the water discharge test is performed, the separated portable unit 20b is connected to the fixed unit 20a as shown in FIG. That is, the one-touch connecting member 30 of the portable unit 20b is inserted into the one-touch joint 26 of the fixing unit 20a to be connected and fixed. Further, a hose is connected to the hose joint 36 of the portable unit 20b and is drawn out to a drain pipe such as a veranda so that drainage is possible.

  When the end test valve 24 is opened in this state, tap water flows through the orifice 34 of the portable unit 20b to the hose connected to the hose joint 36, and flows to the primary side due to the flow resistance when passing through the orifice 34. A discharge pressure corresponding to the pressure is generated and displayed on the pressure gauge 32.

  In the case of the flow rate constant K43 of the sprinkler head 18, the display of the pressure gauge 32 can be determined to be appropriate if it is 0.05 MPa or more, and in the case of the flow rate constant K30, it can be determined to be appropriate if it is 0.10 MPa or more.

  When the water discharge test is completed, the end test valve 24 is closed to stop water discharge, the hose is removed from the hose joint 36, and then the portable unit 20b is removed from the fixed unit 20a.

  FIG. 3 is an explanatory view showing a specific embodiment of the terminal test apparatus according to the present invention with the portable unit separated from the fixed unit. In FIG. 3, the fixed unit 20a of the terminal test apparatus 20 is connected to a branch port of the first T-type joint 22 through a nipple 23 and connected to a branch port of the first T-type joint 22 through a nipple 23, and a one-touch joint 26 is connected to the secondary side thereof. Is connected.

On the other hand, the portable unit 20b is detachably attached to the one-touch joint 26 on the fixed unit 20a side by connecting a one-touch connecting member 30 to the inflow port of the second T-shaped joint 28. A pressure gauge 32 is connected to the upper side of the outflow port of the second T-shaped joint 28, a hose joint 36 with a built-in orifice is connected to the lower side, and a hose 46 is connected in the case of a water discharge test.

  4A and 4B are explanatory views showing a cover mounting state with respect to the fixed unit of FIG. 3, in which FIG. 4A shows a front view and FIG. 4B shows a plan view. In FIG. 4, the fixed unit 20a of the terminal test apparatus 20 of the present embodiment is installed so as to be exposed on a wall surface such as a room where a general household pipe is located. A body cover 40 is attached to the mold joint 22 and a branch cover 42 is attached to the end test valve 24 and the one-touch joint 26 connected to the branch port.

  The main body cover 40 and the branch cover 42 are made of synthetic resin, and are colored, for example, beige that is close to the interior of the room. The main body cover 40 is open to the left side, has an opening hole in the right branch port portion, and has an open top and bottom. The main body cover 40 is mounted by fitting into the joint body from the branch port side. The branch cover 42 can be divided into left and right parts by vertically dividing the cylindrical body, and has a through hole corresponding to the root part of the cock 24a of the end test valve 24.

  FIG. 5 shows a state where the portable unit 20b is connected to the fixed unit 20a of FIG. 3 to configure the terminal test apparatus 20, and can be attached and detached by a one-touch operation without requiring a special tool.

  6 is an explanatory view showing an embodiment of the first T-shaped joint provided in the main unit of FIG. 3, FIG. 6 (A) is a partially sectional front view, and FIG. 6 (B) is a partially sectional view. FIG. 6C shows the bottom surface viewed from the branch side.

In FIG. 6, the first T-shaped joint 22 has an inflow port 50 formed on one side of a main body 48, an outflow port 52 formed on the opposite side, and a branch port 54 formed in an orthogonal direction. A partition wall 55 is formed in the internal flow path between the inflow port 50 and the outflow port 52 so as to extend to a position before the branch port 54, and the inflow port 50 and the outflow port 52 of the partition wall 55 are opposed to each other. The communication hole 56 is opened to constitute a stay prevention structure.

In a state where the end test valve 24 is closed, a part of the tap water flowing in from the inflow port 50 of the first T-shaped joint 22 passes through the through hole 56 of the partition wall 55 as shown by the arrow A, and the outflow port 52. At the same time, a part of the tap water flowing in from the inflow port 50 flows so as to bypass the branch port 54 side along the partition wall 55 as shown by an arrow B, toward the outflow port 52, and on the branch port 54 side. The tap water also flows through the internal flow path so that the tap water does not stay on the branch port 54 side.

  FIG. 7 is an explanatory view showing an embodiment of the one-touch joint used in the present invention. FIG. 7 (A) shows a half section, and FIG. 7 (B) shows a right side surface. In FIG. 7, the main body 60 of the one-touch joint 26 has an inflow port 62 on the left side and a one-touch joint mechanism on the right side.

  The one-touch joint mechanism has a ring-shaped small-diameter portion 68 formed in front of the right opening of the main body 60 and a large-diameter portion 70 formed in the back thereof, and a slider 64 having an insertion port 65 is formed on the left side. The ball 66 is fitted into the guide opening with the ball 66 being supported, and the ball 66 is positioned at the small diameter portion 68. The slider 64 is made of a synthetic resin such as Teflon (R).

  A retainer 67 is incorporated on the left side of the ball 66, the outer periphery of which is fitted in the guide opening and movable in the axial direction. The retainer 67 presses the ball 66 to the right side by a spring 72 incorporated on the left side. A seal 74 using two O-rings or the like is incorporated in the left internal flow path of the spring 72.

  FIG. 8 is an explanatory view showing an embodiment of the one-touch connecting member used in the present invention. In FIG. 8, the one-touch connecting member 30 penetrates the internal flow path 86 in the main body 76, forms a ball fitting groove 80 at a predetermined position of the left connecting cylinder 78, and has a nut portion 82 and a screw portion on the right side. 84 is formed. The connecting cylinder 78 has a diameter that can be fitted and sealed corresponding to the hole diameter of the insertion port of the slider 64 provided in the one-touch joint 26 of FIG. 7 and the hole diameter of the internal flow path in which the seal 74 is disposed.

  FIG. 9 is an explanatory view showing a state where the one-touch connection member 30 of FIG. 8 is attached to the one-touch joint 26 of FIG. When the one-touch connection member 30 shown in FIG. 8 is attached to the one-touch joint 26 shown in FIG. 7, the slider 64 is first pushed to move the ball 66 from the small diameter portion 66 to the large diameter portion 70.

  When the connecting cylinder 78 of the one-touch connecting member 30 is pushed into the insertion port 65 of the slider 64 in this state, the ball 66 is located at the large diameter portion 70 and does not jump out inward, so that the connecting cylinder of the one-touch connecting member 30 is used. 78 can be fitted. When the tip of the connecting cylinder 78 contacts the step of the internal flow path of the one-touch joint 26, the ball 66 is positioned in the ball fitting groove 80 formed in the connecting cylinder 78, and the pushing of the slider 64 is released in this state. Then, the ball 66 is pushed into the small-diameter portion 68 via the retainer 67 by the spring 72, and a part of the hole 66 enters the ball fitting groove 80, and is fixed by chucking.

  When the one-touch connecting member 30 is desired to be removed, the chucking by the ball 66 is released by pushing the slider 64 to the left side in the connected state of FIG. 9, and the one-touch connecting member 30 can be extracted from the one-touch joint 26.

  FIG. 10 is an explanatory view showing an embodiment of a hose joint and a built-in orifice used in the present invention, FIG. 10 (A) is a cross section of the hose joint, and FIGS. 10 (B) and (C) are built in the hose joint. Two kinds of orifices are taken out and shown.

10A, the hose joint 36 has an inflow passage 90 formed at the top of a main body 88 and a threaded portion 91 formed outside thereof, and an orifice 34 is built in the bottom of the inflow passage 90. A hose connecting portion 92 having a plurality of annular stepped grooves having a wedge-shaped cross section is provided below the main body 88, and a water discharge hole 94 narrowed to a small diameter is formed inside.

  The orifices used in this embodiment are the first orifice 34a having an orifice hole 96a corresponding to the flow rate constant K43 of the sprinkler head shown in FIG. 10B, and the sprinkler head shown in FIG. 10C. Two types of second orifices 34b having orifice holes 96b corresponding to the flow rate constant K30 are prepared, and one of the orifices suitable for the sprinkler head used in the fire extinguishing equipment for performing the water discharge test is selected and used.

  FIG. 11 is an explanatory view showing another embodiment of the present invention in which two portable units having different orifices shown in FIGS. 10B and 10C can be exchanged and connected.

  In FIG. 11, the fixed unit 20a fixedly connected to the fire extinguishing equipment side is the same as in FIG. 2, but the first portable unit 20b-1 provided with the first orifice 34a as the portable unit and the second orifice 34b. Two of the provided second portable units 20b-2 are prepared, and a first portable unit 20b-1 provided with a first orifice 34a adapted to the sprinkler head 18 of a fire extinguishing facility for performing a water discharge test, Alternatively, any one of the second portable units 20b-2 provided with the second orifice 34b is selected and attached to the fixed unit 20a, and the water discharge test is performed.

  Of course, the first portable unit 20b-1 and the second portable unit 20b-2 are common units that can be selectively used for a plurality of fire extinguishing facilities, and are stored and managed on the inspection personnel side during the water discharge test. Will be used.

  It should be noted that the first orifice 34a and the second orifice 34b may be selected so as to be exchangeable and connectable to the portable unit 20. With this configuration, one type of portable unit can be provided.

  FIG. 12 is an explanatory view showing another embodiment of the present invention that enables switching between different orifices. In FIG. 12, the fixed unit 20a fixedly connected to the fire extinguishing equipment side is the same as that in FIG. 2, but the first two-way switching valve 98 is used as the portable unit 20b between the second T-type joint 28 and the hose joint 36. The orifice 34a and the second orifice 34b are provided so as to be switchable.

  In the water discharge test, either the first orifice 34a or the second orifice 34b is selected by switching the three-way switching valve 98 so that it fits the sprinkler head 18 of the target fire extinguishing equipment, and then attached to the fixed unit 20a. And conduct a water discharge test.

  As described above, since the first orifice 34a or the second orifice 34b can be switched, the water discharge test corresponding to the installation of the two types of sprinkler heads can be performed easily and efficiently.

  In addition, said embodiment has taken as an example the case where the water supply piping 10 is divided into 2 systems, the general equipment piping 10a and the fire extinguishing equipment piping 10b, and the end of the fire extinguishing equipment piping 10b is connected to the toilet water tank as a general equipment. However, the general equipment and sprinkler head may be connected in the middle of the same pipe. In this case, the end test device is provided at the end of the pipe as viewed from the sprinkler head, What is necessary is just to set it as the structure which connects one or more equipment.

  The first T-type joint 22 and the second T-type joint 28 are not limited to T-shaped joints, and may be multi-way joints including multi-directional ports such as three-way joints. The multi-way joint may be composed of a plurality of branch pipes. Further, the connection positions of the pressure gauge 32, the one-touch connection member 30 and the hose joint 36 connected to each port of the second T-shaped joint 28 are not limited to the connections shown in FIG. You may exchange the port which the one-touch connection member 30 connects.

Further, the connection between the fixed unit 20a and the portable unit 20b is configured to be detachable by one operation of the slider 64 by the one-touch joint 20 and the one-touch connection member 30 provided in each, but is not limited to this configuration, and can be detached at the time of the test. What is necessary is just to comprise by a pair of 1st connection member and 2nd connection member.

  In addition, the orifice 34 of the portable unit 20b is configured to be housed in the hose coupling 36, but the configuration is not limited to this, and is configured to be inserted and connected between the second T-shaped joint 28 and the hose coupling 36 by a screw portion. It may be. The hose connection part 36 is not limited to the connection part as illustrated in FIG. 5 inserted into the hose, and may be a drainage channel connection member connected to the drainage channel via a one-touch joint, for example.

The present invention includes appropriate modifications without impairing the object and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

10: Water supply piping 10a: General equipment piping 10b: Fire extinguishing equipment piping 18: Sprinkler head 20: Terminal test device 20a: Fixed unit 20b: Portable unit 20b-1: First portable unit 20b-2: Second portable unit 22: First T-type joint 24: End test valve 26: One-touch joint 28: Second T-type joint 30: One-touch connection member 32: Pressure gauge 34: Orifice 34a: First orifice 34b: Second orifice 36: Hose Fitting

Claims (6)

In a fire extinguishing facility equipped with a closed sprinkler head that operates in response to a hot air current from a fire
A terminal test device is provided at the position of the pipe on the terminal side of the sprinkler head,
The terminal test device is:
An inflow port and an outflow port are inserted and connected to the pipe, and a retention preventing structure is provided that prevents the generation of accumulated water on the branch port side by a detour flow from the inflow port to the outflow port to the branch port . 1 multi-way joint,
A terminal test valve connected to the branch port of the first multi-way joint;
A first connecting member for detachably connecting a mating member to the secondary side of the terminal test valve;
A second connection member detachably attached to the first connection member;
A second multi-way joint having an inflow port connected to the second connection member;
A pressure gauge connected to the first outlet port of the second multi-way joint;
An orifice and drainage connection member connected to the second outflow port to the second multi-way joint;
The equipped, fire extinguishing equipment, characterized in that the water discharge pressure in the case where the terminal test valve opening operation and tested discharge water into the drainage channel connecting member via the orifice has a structure to be tested by displaying on the pressure gauge .

In the fire extinguishing equipment according to claim 1,
The first multi-way joint of the terminal test device, the terminal test valve and the first connecting member constitute a fixed unit connected and fixed to the pipe side,
The second connection member, the second multi-way joint, the pressure gauge, the orifice, and the drainage connection member of the terminal test device constitute a portable unit that is used by being connected to the fixed unit when performing a test. Special fire extinguishing equipment.
2. The fire extinguishing equipment according to claim 1, wherein a cover member is attached to the fixed unit.
The fire extinguishing equipment according to claim 1, wherein the sprinkler head is a first sprinkler head having a water discharge flow rate of 30 liters per minute when the discharge pressure is 0.05 MPa, or every minute when the discharge pressure is 0.02 PMa. A second sprinkler head with a water discharge rate of 30 liters,
When the first sprinkler head is connected to the pipe as the orifice, a first orifice that generates a pressure loss corresponding to the water discharge pressure of 0.05 MPa when the terminal test valve is opened is provided. When the second sprinkler head is connected to a pipe, a fire extinguishing system is provided, wherein a second orifice is provided that generates a pressure loss corresponding to the water discharge pressure of 0.02 MPa when the terminal test valve is opened. Facility.
5. The fire extinguishing equipment according to claim 4, wherein the first orifice or the second orifice is exchangeably provided in the portable unit.
  The fire extinguishing equipment according to claim 4, wherein the first orifice or the second orifice is provided in the portable unit so as to be switchable.