JP3683104B2 - Fire pump unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fire extinguishing pump unit, and in particular, a pump that supplies water for fire extinguishing, an electric motor that drives the pump, a priming water tank that supplies priming water to the pump, and an operation test apparatus that tests the pump. Are related to a fire pump unit integrally mounted on a common base.
[0002]
[Prior art]
A fire pump unit is a device that pressurizes water for fire extinguishing to a predetermined pressure and supplies it to a fire hydrant when a fire breaks out. Mounted on top. The expiratory tank is for supplying expiratory water into the pump from the pump discharge side so that the inside of the pump is full so that the pump can be started at any time. The expiratory tank is always supplied with water from other water sources, for example, tap water, so that a constant amount of water is always maintained, thereby supplying expiratory water from the pump discharge side pipe into the pump. The water is fully maintained. The fire pump unit includes a pump performance test device for checking whether or not the pump operates normally in preparation for fire extinguishing activities that occur very rarely. This is to operate the pump during the performance inspection of the pump, read the water amount at that time, the discharge pressure and the suction pressure of the pump, and inspect whether or not the total head required for the performance of the pump is satisfied.
[0003]
By the way, this expelling tank is mounted on a pedestal having two legs welded to four L-shaped angles in a mouth shape, and the pedestal legs are mounted in the longitudinal direction of a common base on which a pump and a motor are mounted. It is fixed on the left and right sides of one side. That is, a pump is disposed on the other side in the longitudinal direction on the common base, and a discharge short pipe and a main pipe extend upward from the pump. And the electric motor which drives a pump is arrange | positioned adjacent to a pump on a common base. The gantry is provided on the common base so as to cover a part of the electric motor, and the basin is placed on the gantry ceiling plate. A control panel is attached to the pedestal via a mounting bracket, thereby performing control for operation and maintenance of the pump, issuing warnings, and the like.
[0004]
[Problems to be solved by the invention]
In order to attach these pipes or devices to the pump discharge side, a discharge short pipe is generally provided at the pump discharge port. An example of the structure of a conventional discharge short tube is shown in FIG. The pump discharge port mounting 50A and the main pipe connection 50B are flanged, and the pipe connection 50C to the pump performance test apparatus and the pipe connection 50D to the basin are screw holes. Further, the pressure gauge connection 50F and the escape pipe connection 50E for preventing water temperature rise are machined with screw holes. Moreover, each screw hole process is set so that it may face to the other side.
[0005]
FIG. 9 shows a state in which each piping is provided on the discharge short pipe having such a shape. The dimensions A and B from the center of the flange attached to the discharge port of the fire extinguishing pump to the respective pipes are, for example, in the case of connection pipes to the pump test apparatus, the connection to the discharge short pipe is the short nipple 51A / elbow first. 51B / long nipple 51C, and in particular, the factor that creates the dimension A depends on two types of pipe lengths: a short nipple 51A / and an elbow 51B for connection to the discharge short pipe. Similarly, in the case of the priming pipe connected to the priming tank, there are two types of elements that produce the dimension B, namely the short nipple 52A and the elbow 52B. Thus, it can be seen that each dimension depends on the length of the short nipple to be used and the elbow dimension (distance from the end face to the center of the other connection port) and the dimensions for each pipe diameter. That is, it can be seen that there are limits to minimizing the dimensions A and B.
[0006]
Also, it is difficult to assemble the dimensions A and B with high accuracy due to differences in depth due to screwing, differences due to tolerances in screw processing, and the like. In other words, the tolerance of the screw hole of the discharge short pipe / the tolerance of the short nipple length and the tolerance of the screw / the tolerance of the screw hole of the elbow and the dimension difference due to the elbow dimension (distance from the end face to the center of other connection port) Due to the difference in depth caused by screwing, it is very difficult to always make the dimensions A and B the same. This is because even if the tolerance of dimensions is tightened, leakage occurs when water pressure is applied due to the tolerance of screw holes and the dimensions to be screwed in, and it is often necessary to retighten the screws. Then, when working, it is a general psychological state of the worker that the screw hole is tightened to a state where it is difficult to tighten further without being adjusted. Then, it turns out that it is practically extremely difficult to make the dimensions A and B in question constant.
[0007]
The reason why dimensions A and B need to be constant is that the mounting flange at the tip of the priming pipe and the mounting flange at the tip of the escaping pipe for preventing water temperature rise are connected to the bottom surface of the above-described basin. Since the position of the other party to be connected is determined, if the dimensions A and B are different, the dimensions of the positional relationship between the mounting flange on the pump side and the mounting part on the priming tank side will be different. Although the bottom of the water tank and the mounting flange of the priming pipe can be attached, there arises a problem that the bottom of the priming tank and the mounting flange of the escape pipe for preventing water temperature rise cannot be attached.
[0008]
In addition, minimizing the dimensions A and B is limited by the pipe material (elbow / short nipple) used. The reason why the dimensions A and B need to be minimized is that the fire extinguishing pump unit is in a stopped state in most cases except when a fire breaks out. Because it is mounted on a common base, the overall weight is reduced, the size is reduced, the cost is reduced, the mounting area of the pump unit is reduced as much as possible, and the weight is also reduced, so that the foundation itself that receives the entire unit can also be reduced in weight. In addition, such light weight and downsizing are desired.
[0009]
The present invention has been made in view of the above circumstances, and an object thereof is to provide a fire extinguishing pump unit that can be further reduced in size and size and can be easily assembled.
[0010]
[Means for Solving the Problems]
The fire-extinguishing pump unit of the present invention is a fire-extinguishing pump in which a pump, an electric motor for driving the pump, an expiratory tank for supplying exhaled water to the pump, and an operation test apparatus for testing the pump are mounted on a common base. In the unit, a common base, a pump disposed on the common base, an electric motor for driving the pump, a pair of expiratory tank mounts provided on both sides in the longitudinal direction of the common base, and the pair of expelling tank mounts An expelling tank mounted thereon, a control panel provided with a display device attached to a side surface of the expelling tank, and a discharge short pipe connected to the discharge side of the pump,
The discharge short pipe includes three branch pipes each having a flange portion that opens toward a space below the expiratory tank, and includes an expiratory pipe connected to the bottom surface of the expelled tank and an escape pipe for preventing a rise in water temperature. When the partition valve, flow meter, a test apparatus pipe having a flow control valve, in which is characterized in that it is connected via a flange each branch pipe of the three.
[0011]
According to the present invention described above, the passage to the priming pipe connection flange and the operation test apparatus pipe connection flange is branched, and the priming pipe is configured so that the connection flange faces the same direction. And the pump operation test apparatus can be arranged on the same horizontal plane and arranged below the expiratory tank of the expelled tank mount. Since dimensions A and B are always constant, there is no problem that the dimensions do not match when piping is connected in assembly.
[0012]
Further, according to the present invention, a passage to the connection flange of the escape pipe for preventing water temperature rise is provided between the passage to the priming pipe connection flange of the discharge short pipe and the passage to the operation test apparatus pipe connection flange. It is characterized by that . Thereby, the escape pipe for preventing water temperature rise can be compactly arranged in the lower space of the expelling tank together with the expiratory water pipe and the operation test apparatus. Since the relief pipe for preventing the water temperature rise is also arranged in the same direction, there is no problem that the dimensions do not match when the pipe is connected in assembly.
[0013]
Also, the dimensions A and B between the outlet pipe connection flange of the discharge short pipe and the operation test equipment pipe connection flange are such that the flow rate adjustment valve / gate valve / check valve / gate valve attached to each other interfere with each other. In addition, it is possible to ensure a minimum dimension that does not hinder the opening and closing of these valves. Thereby, although it is compact, operation is not hindered.
[0014]
Further, the present invention relates to a fire extinguishing pump unit in which a pump, an electric motor that drives the pump, an exhalation tank that supplies exhalation water to the pump, and an operation test apparatus that tests the pump are mounted on a common base. The expelling tank is mounted on a gantry and arranged at a position higher than the pump and the electric motor. The expelling tank mounting gantry and the basin body mounting part / or the common base and the basin basin mounting part. , it is characterized in that it comprises adjustment means that enables adjustment of the position of the longitudinal direction. Thereby, when connecting the escape pipe for preventing water temperature rise together with the expiratory pipe to the bottom surface of the expelling tank, the position adjustment in the longitudinal direction is possible.
[0015]
In the present invention, a discharge short pipe is attached to the discharge side of the pump, and at least a discharge water pipe or a water temperature rise prevention escape pipe is attached to the discharge short pipe, and a water discharge pipe or a water temperature rise prevention escape pipe is provided. directly attached to call aquarium, adjustment of the mounting position of the pipe relief for preventing expiratory water pipe or the water temperature rises, and is characterized in that it comprises both adjusting means in the longitudinal direction and the height direction. Thereby, piping connection and assembly of a fire pump unit can be performed easily.
[0016]
Here, with regard to the priming pipe, the height adjustment means is adjustment of the flange hole of the flange part for coupling, and the longitudinal adjustment means is the insertion depth of the special elbow and flanged short pipe. Ru adjustment der. In addition, for the relief pipe for preventing water temperature rise, the orifice of the relief pipe part can be adjusted in the longitudinal direction by attaching the first stage orifice plate in the screw-in type gate valve, and the second stage orifice is the flange part. because it is formed into, Ru can der adjustment in the height direction.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS. In the drawings, the same reference numerals denote the same or corresponding parts.
[0018]
FIG. 1 shows a fire pump unit according to an embodiment of the present invention. A pump P and an electric motor M that drives the pump are mounted on the common base 11. The discharge side of the pump is connected to a pumping pipe (not shown) from the discharge short pipe 34 via the flexible pipe 21, the main check valve 22, the main water stop valve 23, and the like, and further supplies pressurized water to a fire hydrant (not shown). It is supposed to be. Further, the piping of the pump performance test device 25 is connected from the branch portion of the discharge short pipe 34, and the pressurized water is circulated to the water source to which the pump suction side is connected. The pump performance test device 25 includes a gate valve, a flow meter, a flow rate adjustment valve, and the like.
[0019]
The expiratory tank mounts 14A and 14B provided on both sides in the longitudinal direction of the common base 11 are equipped with expelled water tanks 26, which always supply expiratory water to the pump so that the pump can be started at any time. It is like that. The fire pump unit includes a control panel 27 and a digital display device 28 such as 7 segments. The control panel 27 is directly attached to the side surface of the expiration water tank 26. The control panel 27 performs operation control for supplying pressurized water to the fire hydrant during fire extinguishing, and pump operation tests other than during fire extinguishing.
[0020]
The common base 11 is made of a steel plate having a thickness of about 2 mm, and includes a short upper surface 11a to which a pump and an electric motor are fixed, and an L-shaped side portion 11b that is bent and provided on the upper surface. Here, a surface perpendicular to the upper surface of the L-shaped side portion 11b serves to support the upper surface on which a pump, an electric motor, and the like are mounted. Further, the lower surface parallel to the upper surface of the L-shaped side portion is fixed to the installation floor surface by an anchor bolt (not shown). A reinforcing portion 19 that is bent into an I shape is provided on the short side of the rectangular upper surface. The lower ends of the basin 14A and 14B that support the basin are directly fixed to the L-shaped side portion of the common base as shown in the figure. Thereby, the gantry leg parts 14A and 14B that support the heavy expiratory tank 26 can be fixed to the common base 11 stably and firmly.
[0021]
As shown in FIG. 1, a discharge short pipe 34 is attached to the discharge side of the pump, and a pressure gauge for measuring the discharge pressure of the pump and a pump performance test apparatus 25 for measuring the flow rate are attached to the discharge short pipe. And a relief pipe for preventing a rise in the water temperature of the pump and a priming pipe. A relief pipe for preventing the pump from rising in water temperature and a priming pipe are attached to the priming tank. The expiratory pipe 47, the escape pipe 46 for preventing the water temperature rise, and the pump performance test device 25 are all housed in the lower space of the expelling tank 26. These three pipes are arranged horizontally to realize a compact structure.
[0022]
FIG. 2 shows a connection state of the pump discharge short pipe 34, the expiratory pipe 47 connected to the expelling tank, the escape pipe 46 for preventing the water temperature rise, and the pump performance test apparatus 25. A check valve 47B and a gate valve 47A of the priming pipe 47 are connected to a discharge short pipe 34 connected to the discharge side of the pump via a flange 47C, and its mounting flange 47D is connected to a corresponding bottom surface of the priming tank. The The discharge short pipe 34 is connected to a relief pipe 46 for preventing a water temperature rise provided with a gate valve 46A and an orifice 46B via a flange 46C. In addition, although it is necessary to match | combine the height of the piping flange to an expiration water tank, adjustment is possible by changing the height of an expiration water tank mount so that it may mention later. Further, a test apparatus pipe 25 including a gate valve 25A, a flow meter 25B, and a flow rate adjustment valve 25D is connected to the discharge pipe 34 via a flange 25C.
[0023]
FIG. 3 shows details of the discharge short tube of the pump. The discharge short pipe 34 of the pump has a connection flange 30A connected to the pump discharge port and a flange 34B connected to the main pipe on the water supply side of the fire fighting pump unit, and both the flanges are in positions facing each other. . The passage to the priming pipe connection flange 34C and the pipe connection flange 34D to the pump test apparatus is branched so as to intersect with the passage connecting the two flanges, and these connection flanges 34C and 34D constitute the same surface. ing. By adopting this structure, the dimensions A and B can be minimized, and the size of the fire pump unit can be reduced. In addition, since the dimensions A and B can be made constant, the positional relationship when the connection from each flange is connected to the other party is always the same dimension, so there is no need to adjust during assembly. Thus, since the dimensions A and B can be kept to a minimum, as shown in FIG. 1, it becomes possible to put pipes between the expiratory tank mounts at the lower part of the expelled tank, and at the upper part thereof. It is possible to reduce the size of the on-board expiratory tank.
[0024]
Moreover, it is comprised so that a connection flange may face the same surface direction, and each apparatus and the flange of a piping side can be attached as shown in FIG. Conversely, by loosening the mounting screws of each flange, each pipe (flow meter piping / expiration piping / relief piping for preventing water temperature rise) is attached to the user side piping / exhalation tank main body. The discharge short tube part can be separated. Fig.5 (a) shows the state which connected the suction piping of the fire-extinguishing pump unit to the water storage tank. As shown in FIG. 5B, when the suction pipe portion 53 is removed from the suction unit 55 of the water storage tank 33 and the pump P is disassembled, the pump is pulled out to the front surface by utilizing the space of the suction pipe. Thus, the pump P can be extracted. As a result, a fire extinguishing pump unit having good maintainability can be obtained.
[0025]
By the way, the operation of the fire pump can be started from the operation of the push button of the receiver unit and the push button of the main body of the control panel. Even if the push button signal on the receiver is canceled, the fire signal is retained in the control panel in consideration of power failure / recovery in the event of a fire. It can be done. Considering the reverse, in order to stop the fire pump, it is necessary to stop it with the push button on the main body of the control panel even after the fire signal is canceled. Since the system is constructed in such a direction that it does not stop, it is sometimes forgotten to stop during trial operation / periodic inspection. In such a case, an escape device (pipe) for preventing a rise in water temperature is provided to prevent the pump from being broken so as to suppress a rise in temperature due to the shutoff operation of the pump. The relief pipe for preventing water temperature rise to suppress the temperature rise due to the shutoff operation of this pump inserts an orifice, and even during the shutoff operation, a small amount of water is released from the pump discharge side to suppress the temperature rise in the pump. . In addition, the orifice hole is small, and the minimum diameter is 3 mm in consideration of clogging. In general, since one stage of the orifice flows more water than necessary, the orifice has a structure of two or more stages.
[0026]
The discharge side of the thus fire pump, with piping and performance of the pump and the water temperature rises preventing escape for pressing the temperature rise due to discharge operation of priming piping and pumps for always full level of the pump A pump performance tester for measuring a certain discharge amount is attached. Moreover, since the fire pump is not always operating, the space for installing the fire pump is made as small as possible, and various measures are taken to prevent installation of the fire pump and the water temperature. In order to attach the relief pipe and the connection pipe of the pump performance test apparatus in a compact manner, a discharge short pipe is provided as described above, and a branch pipe is provided therefrom. And a pipe connection flange and a priming pipe connection flange to the pump test apparatus are provided, and each pipe is connected to each connection flange. The connection pipe to the pump test equipment is not a problem because it will be installed at the customer's site as it is, but the expiratory pipe and the escape pipe for preventing water temperature rise need to be connected from the discharge short pipe to the main body of the expelled water tank. .
[0027]
Here, each pipe is attached to the bottom of the basin with a flange. For this reason, the distance between the position of the discharge short pipe, the priming pipe, and the mounting position of the escape pipe for preventing the water temperature rise to the bottom surface of the basin becomes a problem. It is very difficult as a practical matter to combine both at the same time. It is also necessary to match the position in the height direction. If the horizontal distance and height distance cannot be adjusted / adjusted, the fire pump unit cannot be assembled.
[0028]
First, adjustment of the priming pipe will be described. First, the pipes are assembled and a pump / motor is mounted on a common base and attached to a predetermined position. Next, the expelling water tank mount is attached to a predetermined position on the common base. Here, a long hole is machined in the base of the expiration water tank, and the expiration water tank is attached to the elongated hole. Therefore, the attachment of the expiratory pipe and the position of the expelling tank main body are aligned, and the expelling tank is attached and the expelling pipe is attached. At this time, the height is adjusted by moving it up and down in the flange hole of the flange portion.
[0029]
Next, in the case of a relief pipe for preventing water temperature rise, the longitudinal (horizontal) direction adjustment is performed by inserting a flanged short pipe 56 into a special elbow 57 as shown in FIG. Can be adjusted freely by adjusting the insertion depth. The insertion surface of the flanged short tube 56 to the special elbow 57 is sealed by an O-ring 58. The adjustment in the height direction is performed at the mutual flange portion of the flanged nipple 59 and the flanged short pipe 56. As shown in FIG. 6 (b), the orifice can be formed by screwing together the first-stage orifice plate 60 at the tip when the flanged short pipe 59 is screwed into the screw-in type gate valve 46A. The flange portion of the flanged short pipe is the second stage orifice 61. In this way, the same effect can be expected without creating a special orifice for a water temperature rise prevention escape pipe.
[0030]
FIG. 7 is a diagram illustrating an overall configuration of the fire pump unit. The suction side of the pump P is connected to a water source 33 via a suction pipe 31 and a foot valve 32. The discharge side of the pump P is connected to one fire hydrant 35 via the discharge pipe 34, the flexible pipe 21, the main check valve 22, the main water stop valve 23, the pumping pipe 29 and the horizontal water pipe 30. The pumping pipe 29 is connected to another fire hydrant (not shown) and supplies water pressurized by the pump P. A pressure gauge 36 for detecting the suction pressure is provided on the suction side of the pump P, and a pressure gauge 37 for detecting the discharge pressure is also provided on the discharge side of the pump. A discharge short pipe 34 is provided on the discharge side of the pump, and the pressurized water of the pump circulates from the discharge short pipe 34 to the water source 33 through the pump performance test device 25. The pump performance test apparatus 25 includes a gate valve 25A, a flow meter 25B, a flow rate adjustment valve 25D, and the like. Similarly, a priming water tank 26 is connected to the pump discharge side, and the priming water is always supplied from the priming water tank 26 to the discharge side of the pump P through the piping 47 via the gate valve 47A and the check valve 47B. It has become.
[0031]
The fire hydrant box 35 includes a receiver 41, a fire pump start indicator lamp, a fire hydrant indicator lamp 42, an alarm bell 43, and the like. The pump P is driven by an electric motor M, and the electric motor M is connected to the control panel 27 via a power wiring, and the electric motor M is rotationally driven by the electric power supplied from the control panel 27, so that the pump P supplies pressurized water to the discharge side. Supply. The control panel 27 is connected to the fire hydrant start relay box 44 and the receiver 45, and the receiver 44 and the fire hydrant start relay 45 are operated in conjunction with the signals of the fire hydrant indicator lamp 42 and the bell 43, etc. During the fire fighting activity, the pump P is activated to supply water to the fire hydrant 35 or the like.
[0032]
Further, water is supplied to the expelling water tank 26 from another water source, and the supply of this water is controlled to a constant amount of water using a ball tap 26A. An electrode rod 26B is provided for water level detection. Further, a relief pipe 46 for preventing a water temperature rise is provided so that pressurized water is allowed to escape to the water source 33 via the expiratory water tank 26 when the pump P is shut off. The gate valve 46A and the orifice 46B provided in the pipe 46 are for opening and closing the connection with the main pipe side and adjusting the flow rate. The expelling tank 26 is provided with an overflow tank 26C, and is configured to return the overflowed water to the water source 33 when pressurized water for preventing a rise in water temperature flows. When the pump is stopped, the water in the expiratory tank flows from the short discharge pipe 34 into the pump P through the gate valve 47A and check valve 47B of the expiratory pipe from the expelling tank, and the foot valve 32 is normal. The inside of P is always full.
[0033]
The operation of the pump during fire fighting is as follows. First, for example, a fire signal is input to the control panel 27 via the receiver 44 and the fire hydrant start relay box 45 by operating the push button 42 of the receiver part of the fire hydrant box 35. The control panel 27 receives the fire signal, applies power to the electric motor M via the power wiring 48, the electric motor M starts to rotate, and the pump P is thereby started. Then, water from the foot valve 32 of the water source 33 is sucked into the pump P through the suction pipe 31 and pressurized there, and the discharge short pipe 34, the flexible pipe 21, the main check valve 22, the main stop valve 23, the pumping water Water is supplied to the fire hydrant box 35 or the like via the pipe 29 and then supplied to a fire hydrant nozzle (not shown). For fire fighting, bring a fire hydrant nozzle to the fire site and sprinkle water necessary for fire fighting. The pump P may be started directly from the control panel 27.
[0034]
Most of the time, except when such a fire occurs, the pump is stopped. For this reason, it is necessary to maintain and manage the fire pump unit, and it is also required by law to incorporate equipment necessary for maintenance into the fire pump unit. One of them is a pump performance test device 25, which is composed of a flow meter, an on-off valve, and a flow rate adjusting valve. The pump is operated at the time of pump performance inspection, and the on-off valve is fully opened to pump the flow rate with the flow rate adjusting valve. The water volume at that time and the pressure gauges 36 and 37 are used to read the discharge pressure and suction pressure of the pump, respectively. As a result, the total pump head required as the pump performance is calculated, and it is inspected whether the total head is satisfied with respect to the rated flow rate of the pump.
[0035]
Further, when the pump is cut off, the pump shaft power is consumed in the pump casing, so that the water temperature in the pump rises abnormally. In order to prevent such a problem, the escape pipe 46 for preventing the water temperature from rising is branched from the discharge pipe 34, and the amount of water is limited by the gate valve 46A and the orifice 46B to be sent to the expelling tank 26. Prevent abnormal temperature rise. In order to keep the inside of the pump full of water, the expiratory tank 26 is provided. In order to keep the expelled tank itself always full, water can be supplied from another water source via the ball tap 26A. The expiratory tank is provided with an electrode bar 26B for detecting the water level. When there is no water supply from another water source, or when the water level of the expelled tank 26 decreases due to a failure of the ball tap 26A, the electrode bar 26B. Therefore, the abnormality is detected and transmitted to the control panel 27, so that the failure of the basin can be prevented. As described above, for the maintenance management of the fire pump unit, it is necessary to carry out regular pump performance maintenance tests, maintenance of the pump full condition by maintaining the amount of water in the expiration water tank, and the like.
[0036]
【The invention's effect】
As described above, according to the present invention, it is possible to arrange expiratory pipes, pump operation test devices, escape pipes for preventing water temperature rise, etc. in the lower space of the expelling tank in a compact manner. And when piping is connected in assembly, there is no problem that the dimensions do not match.
[0037]
In addition, when connecting an escape pipe for preventing water temperature rise together with the expiratory pipe to the bottom surface of the expelling tank, position adjustment in the longitudinal direction and the height direction can be easily performed.
[Brief description of the drawings]
FIG. 1A is a front view and FIG. 1B is a side view of a fire pump unit according to an embodiment of the present invention.
FIG. 2 is a view showing an expiratory pipe connected to a short discharge pipe of a pump, an escape pipe for preventing a rise in water temperature, and a pump performance test apparatus pipe as viewed from above.
3A is a front view, FIG. 3B is a side view, and FIG. 3C is a rear view of a discharge short tube according to an embodiment of the present invention.
FIG. 4 is a diagram showing a connection between a discharge short pipe and various pipes according to an embodiment of the present invention.
5A is a diagram in which a fire extinguishing pump unit of the embodiment of the present invention is connected to a water source, and FIG. 5B is a diagram in which a part of a suction pipe is removed and a pump is drawn out.
FIG. 6 is an explanatory diagram of position adjustment, and shows adjustment in the longitudinal direction and height direction by a flange and a special elbow.
7 is a block diagram showing the overall configuration of the pump fire extinguishing unit shown in FIG. 1. FIG.
8A is a front view, FIG. 8B is a side view, and FIG. 8C is a rear view of a conventional discharge short tube.
FIG. 9 is a diagram showing a connection between a discharge short pipe of a conventional form and various pipes.
[Explanation of symbols]
P Pump M Electric motor 11 Common base 14A, 14B Expelled water tank stand (leg part)
25 Pump performance test equipment (piping)
26 Expiration water tank 34 Discharge short pipe 46 Relief pipe 47 for preventing water temperature rise Expired water pipe

Claims (2)

In a fire-extinguishing pump unit in which a pump, an electric motor that drives the pump, an exhalation water tank that supplies exhaled water to the pump, and an operation test device that tests the pump are mounted on a common base,
With a common base,
A pump disposed on the common base and an electric motor for driving the pump;
A pair of basin tanks provided on both sides in the longitudinal direction of the common base;
A basin tank mounted on the pair of basin tanks;
A control panel with a display device attached to the side of the priming tank;
A discharge short pipe connected to the discharge side of the pump;
Each of the discharge short pipes includes three branch pipes each having a flange portion that opens toward a space below the expiratory tank,
An expiratory pipe connected to the bottom surface of the expiratory tank, an escape pipe for preventing water temperature rise, and a test apparatus pipe provided with a gate valve, a flow meter, and a flow rate adjusting valve are respectively connected to the three branch pipes via flanges. Fire extinguishing pump unit characterized by being connected to each other.   The fire pump unit according to claim 1, wherein the expiratory water pipe and the escape pipe for preventing water temperature rise are provided with position adjusting means in a longitudinal direction.

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