Turnover type automatic pressure stabilizing fire pump

Abstract

The utility model provides a turnover type automatic pressure stabilizing fire pump which comprises a pressure stabilizing pump assembly, and the left side and the right side of the pressure stabilizing pump assembly are fixedly connected with the inner wall of the front side of an input main pipe and the inner wall of the front side of an output main pipe respectively. A first main pump assembly and a second main pump assembly which are used for conducting rapid pressurization are installed between the rear side of the input main pipe and the rear side of the output main pipe, and the rear end of the input main pipe is fixedly connected with the pressure pump and used for assisting the pressure stabilizing pump assembly to conduct water pressure stabilization. The pressure pump and the pressure stabilizing pump assembly are matched with each other, when the fire fighting system does not consume too much water pressure, the first main pump assembly and the second main pump assembly do not need to be started, and the stability of the water pressure of the whole fire fighting water supply system can be guaranteed; and noise interference to the outside during operation of the main pump assembly I, the main pump assembly II and the pressure pump is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to fire fighting equipment technical field, especially relate to a kind of turnover type automatic pressure stabilizing fire pump. BACKGROUND

[0002] Traditional pressure stabilizing pump runs continuously during non-fire period, leading to energy waste, equipment wear and tear, frequent maintenance, and thus increasing cost, with significant defects. First, traditional pressure stabilizing pump usually adopts constant speed operation mode, which remains full speed operation even when system demand is low during non-fire period, leading to a large amount of electric energy being wasted, with serious energy waste. This continuous operation not only increases power cost, but also aggravates mechanical wear and tear of equipment, especially key components such as pump body, bearing and sealing, which are in high load state for a long time, leading to significant shortening of their service life. Acceleration of equipment wear and tear significantly increases maintenance frequency, and maintenance cost also rises, including replacement of parts, labor inspection cost, etc., further increasing overall operating cost. The root cause of these problems lies in the lack of intelligent adjustment capability of traditional pressure stabilizing pump, which cannot dynamically adjust operation state according to actual water pressure demand, and always operates at fixed power, unable to adapt to changes in system load.

[0003] Conventional countermeasures include adopting frequency conversion control technology or adding pressure regulating device, to reduce energy consumption and wear and tear by adjusting speed or start-stop frequency of pump. However, these methods also have certain drawbacks: initial investment of frequency conversion control technology is high, and it has high requirements for stability of control system, and improper control may lead to water pressure fluctuation, affecting reliability of fire fighting system; while pressure regulating device can reduce operation time of pump, but its mechanical structure is complex, increasing fault risk and maintenance difficulty of system, therefore, we hope to design a pressure stabilizing fire pump with novel structure to solve this problem. CONTENT OF UTILITY MODEL

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a turnover type automatic pressure stabilizing fire pump to solve the problems raised in the background art.

[0005] The utility model realizes the following technical scheme: a turnover type automatic pressure stabilizing fire pump, comprising: a pressure stabilizing pump assembly, the left side and the right side of the pressure stabilizing pump assembly are fixedly connected with the front side inner wall of an input main pipe and an output main pipe respectively, a main pump assembly one and a main pump assembly two for rapid pressure boosting are installed between the rear side of the input main pipe and the output main pipe, a control box for intelligent control of water pressure is installed at the front end right side of the output main pipe;

[0006] The input main pipe rear end is fixedly connected with the pressure pump for assisting the water pressure stabilizing pump assembly to stabilize water pressure, a pressure sensor one and a pressure gauge one are installed on the upper side of the input main pipe rear end for displaying and monitoring the entering water pressure, a pressure sensor two and a pressure gauge two are installed on the upper side of the output main pipe rear end for displaying and monitoring the conveying water pressure, in actual use, the main pump assembly one, the main pump assembly two and the water pressure stabilizing pump assembly are all provided with a frequency speed regulator, a steady flow compensator and an intelligent motor soft starter, a PLC programmable controller, a digital PID regulator and a liquid level controller are built in the control box, and the closed loop regulation water supply control system composed of the pressure pump, the main pump assembly one, the main pump assembly two and the water pressure stabilizing pump assembly can automatically adjust the rotating speed of the controlled water pump motor and the operation of the water pump motor according to the change of the pipe network instantaneous pressure, meet the needs of the user constant pressure variable water supply, keep the end pressure of the water supply pipe network constant, and keep the whole water supply system in the best state of high efficiency and energy saving.

[0007] As a preferred embodiment, the pressure pump is connected with the external water supply pipe through the water pump to ensure that the water pressure in the pressure pump is in the set range, and a conveying pipe is arranged at the lower left side of the pressure pump, and a one-way valve is arranged on the conveying pipe and fixedly connected with the lower side of the input main pipe.

[0008] As a preferred embodiment, the input main pipe right side and the output main pipe left side are respectively provided with three equally spaced connection pipes one and two in an axisymmetric structure, the pressure sensor one and the pressure gauge one are arranged on the upper side between the first connection pipe one and the conveying pipe at the rear end of the input main pipe, and the pressure sensor two and the pressure gauge two are arranged on the upper surface at the rear side of the first connection pipe two at the rear end of the output main pipe.

[0009] As a preferred embodiment, the main pump assembly two comprises a switch valve one, a switch valve two and a fire-fighting main pump, the switch valve one is fixedly connected with the lower left side of the fire-fighting main pump, and the switch valve one is connected with the input main pipe through the connection pipe one.

[0010] As a preferred embodiment, the switch valve two is fixedly connected with the lower left side of the fire-fighting main pump, the switch valve two is connected with the output main pipe through the connection pipe two, and the fire-fighting main pump comprises a pump body and a motor, the motor is fixedly connected with the upper end of the pump body to drive the pump body to operate, and one connection flange for sealing butt joint is arranged at the lower left side and the right side of the pump body.

[0011] As a preferred embodiment, the main pump assembly two further comprises a noise reduction piece, the noise reduction piece comprises an outer shell one and an outer shell two, two fixed ears are arranged on the left surface rear side and the right surface rear side of the outer shell one respectively, and two fixed ears are arranged on the left surface front side and the right surface front side of the outer shell two respectively.

[0012] The outer shell 1 and outer shell 2 are fixedly connected by four pairs of matching fixing ears and external bolts. Both outer shell 1 and outer shell 2 are provided with a heat insulation layer and a sound insulation cotton layer inside. The heat insulation layer is placed on the inside, and the sound insulation cotton layer is placed between the heat insulation layer and the inner wall of outer shell 1 and outer shell 2. The thickness of the sound insulation cotton layer is greater than 3cm. The noise reduction components can reduce the noise of the main pump assembly 1, main pump assembly 2 and pressure stabilizing pump assembly, and reduce the noise impact of the equipment on the surrounding environment.

[0013] As a preferred embodiment, a front semi-circular groove is provided inward on the lower rear side of the left surface and the lower rear side of the right surface of the outer shell 1, and a rear semi-circular groove is provided inward on the lower front side of the left surface and the lower front side of the right surface of the outer shell 1. The front semi-circular grooves and rear semi-circular grooves at corresponding positions on the outer shell 1 and the outer shell 2 are combined to form a complete circular through groove for engaging with the part of the pump body that is connected to the connecting flange at the lower end.

[0014] A semi-circular slot 2 is provided on the middle of the rear side of the upper end of the first outer casing and the middle of the front side of the upper end of the second outer casing. The two slots 2 form a complete circular through groove for engaging with the upper part of the pump body and the motor connection part.

[0015] In a preferred embodiment, the structure of the first main pump assembly is the same as that of the second main pump assembly, and the structure of the pressure stabilizing pump assembly is the same as that of the second main pump assembly. The pressure pump, the first main pump assembly, the second main pump assembly, and the pressure stabilizing pump assembly are all electrically connected to the control box via wires, and the first pressure sensor and the second pressure sensor are both electrically connected to the control box via wires.

[0016] After adopting the above technical solution, the beneficial effects of this utility model are as follows: By adding a pressure pump and installing pressure gauge 1, pressure sensor 1, pressure gauge 2, and pressure sensor 2 at the rear end of the input main pipe and the rear end of the output main pipe respectively, the pressure pump and the pressure stabilizing pump assembly cooperate with each other. When there is not much water pressure consumption in the fire protection system, there is no need to start the main pump assembly 1 and the main pump assembly 2, which helps to ensure the stability of the water pressure of the entire fire water supply system. The main pump assembly 1 and the main pump assembly 2 can be started in turn when rapid pressurization water supply is required. The multiple pumps circulate to achieve a turnover operation mode. The average single pump running time per unit time is shorter, avoiding the bearing lubricating oil from drying out and other failures caused by one pump being idle for too long. At the same time, it can also extend the service life of the pumps and related equipment. Even if one of the main pump assembly 1 and the main pump assembly 2 fails, the rest can continue to work, which helps to improve the stability of equipment operation.

[0017] By installing the noise reduction piece under the main pump assembly one, the main pump assembly two and the pressure pump, and by wrapping of the shell one and the shell two, part of the noise generated by the main pump assembly one, the main pump assembly two and the pressure pump can be intercepted and weakened, thereby reducing the noise interference generated by the main pump assembly one, the main pump assembly two and the pressure pump to the outside world when the main pump assembly one, the main pump assembly two and the pressure pump are running, so that the environment around the equipment can be optimized, and the normal life and work and study of the surrounding environment can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a whole structure schematic view of the present application.

[0020] Figure 2 It is a schematic view of the connection between the main pump assembly two and the noise reduction piece of the present application.

[0021] Figure 3 It is a schematic view of the structure of the main pump assembly two of the present application.

[0022] Figure 4 It is a schematic view of the structure of the noise reduction piece of the present application.

[0023] In the figure, 100-pressure pump, 110-conveying pipe;

[0024] 200-input main pipe, 210-connection pipe one, 220-pressure sensor one, 230-pressure gauge one;

[0025] 300-main pump assembly one;

[0026] 400-main pump assembly two, 410-switch valve one, 420-switch valve two, 430-fire pump, 431-connection flange, 432-pump body, 433-motor, 440-noise reduction piece, 441-shell one, 442-shell two, 444-fixing lug, 445-slot two;

[0027] 500-pressure stabilizing pump assembly;

[0028] 600-control box;

[0029] 700-output main pipe, 710-pressure gauge two, 720-pressure sensor two. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of the utility model.

[0031] Please refer to Figures 1 to 4 The utility model provides a kind of technical scheme: a kind of turnover type automatic pressure stabilizing fire pump, comprising: pressure stabilizing pump subassembly 500, the left side, right side of pressure stabilizing pump subassembly 500 is respectively with the front side inner wall of one input main pipe 200, output main pipe 700 Fixed connection, input main pipe 200, output main pipe 700 The back side between installation is used for the main pump subassembly one 300 and main pump subassembly two 400 for carrying out quick pressurization, output main pipe 700 front end right side installation is used for the control box 600 for carrying out intelligent control water pressure;

[0032] Input main pipe 200 rear end is fixedly connected with pressure pump 100 for assisting pressure stabilizing pump subassembly 500 to carry out water pressure stabilization, input main pipe 200 rear end upper side is installed pressure sensor one 220, pressure gauge one 230 for entering water pressure display and monitoring, output main pipe 700 rear end upper side is installed pressure sensor two 720, pressure gauge two 710 for conveying water pressure display and monitoring, in actual use, main pump subassembly one 300, main pump subassembly two 400 and pressure stabilizing pump subassembly 500 are equipped with frequency converter speed regulator, steady flow compensator, intelligent motor 433 soft starter, and control box 600 is built-in PLC programmable controller, digital PID regulator, liquid level controller, with pressure pump 100, main pump subassembly one 300, main pump subassembly two 400 and pressure stabilizing pump subassembly 500 constitute closed loop regulation water supply control system, according to the change of pipe network instantaneous pressure, the speed of controlled water pump motor 433 and the exit operation of multiple water pump motors 433 are automatically adjusted, meet the needs of user constant pressure variable water supply, make water supply pipe network end pressure always keep constant, entire water supply system keeps the best state of high efficiency energy saving.

[0033] Please refer to Figure 1 Pressure pump 100 is connected with external water supply pipe by water pump to ensure that the water pressure in the interior of pressure pump 100 is in set range, and a delivery pipe 110 is arranged at the left side of the lower end of pressure pump 100, a one-way valve is arranged on the delivery pipe 110, and the left end of the delivery pipe 110 is fixedly connected with the rear end of the input main pipe 200.

[0034] The three equidistantly distributed connecting pipes one 210, the connecting pipe two, the pressure sensor one 220 and the pressure gauge one 230 are symmetrically arranged on the right side of the input main pipe 200, and the pressure sensor two 720 and the pressure gauge two 710 are symmetrically arranged on the upper surface of the rear side of the first connecting pipe two of the output main pipe 700.

[0035] The main pump assembly two 400 comprises a switch valve one 410, a switch valve two 420 and a fire main pump 430. The switch valve one 410 is fixedly connected to the left side of the lower end of the fire main pump 430, and the switch valve one 410 is connected to the input main pipe 200 through the connecting pipe one 210.

[0036] The switch valve two 420 is fixedly connected to the left side of the lower end of the fire main pump 430, and the switch valve two 420 is connected to the output main pipe 700 through the connecting pipe two. The fire main pump 430 comprises a pump body 432 and a motor 433. The motor 433 is fixedly connected to the upper end of the pump body 432 to drive the pump body 432 to operate. The pump body 432 is provided with a connecting flange 431 for sealing and docking on the left side and the right side of the lower end of the pump body 432.

[0037] As a first embodiment of the utility model, through additionally adding pressure pump 100, and installing pressure gauge one 230, pressure sensor one 220, pressure gauge two 710 and pressure sensor two 720 at the rear end of input main pipe 200 and the rear end of output main pipe 700 respectively, in actual use, pressure pump 100 continuously supplies pressure to input main pipe 200 through the water pressure stored by itself, ensures that the water pressure of the whole fire fighting system is at a stable level, if pressure pump 100 is insufficient to stabilize the water pressure, the water pressure output by output main pipe 700 is lower than the set value range, at this time, control box 600 controls the starting of pressure stabilizing pump assembly 500 according to the feedback information, and the water pressure of output main pipe 700 is stabilized, in this way, pressure stabilizing pump assembly 500 does not need to run continuously, and only starts to stabilize the pressure when pressure pump 100 is insufficient to stabilize the water pressure, and when the water pressure is stabilized at the set value, pressure stabilizing pump assembly 500 can stop again, and pressure stabilization is carried out by pressure pump 100 again, which helps to reduce the running time of pressure stabilizing pump assembly 500, and pressure pump 100 and pressure stabilizing pump assembly 500 cooperate with each other, and when the fire fighting system does not consume too much water pressure, main pump assembly one 300 and main pump assembly two 400 do not need to be started, which helps to ensure the stability of the water pressure of the whole fire water supply system, and main pump assembly one 300 and main pump assembly two 400 can be started in turn when rapid pressure boosting water supply is needed, and the circulation of multiple pumps realizes the turnover operation mode, the average single pump running time in unit time is shorter, which avoids that the bearing lubricating oil of a certain water pump is dry due to long idle time and other faults, and also prolongs the service life of the water pump and related equipment, even if main pump assembly one 300 and main pump assembly two 400 have a fault, the remaining ones can still work, which helps to improve the stability of equipment operation.

[0038] Please refer to Figures 2 to 4 , main pump assembly two 400 further comprises noise reduction piece 440, noise reduction piece 440 comprises shell one 441 and shell two 442, two fixing ears 444 are arranged on the left surface rear side and the right surface rear side of shell one 441 respectively, and two fixing ears 444 are arranged on the left surface front side and the right surface front side of shell two 442 respectively.

[0039] Shell one 441 and shell two 442 are fixedly connected through four pairs of fixing ears 444 matched with each other and external bolts, heat preservation layers and sound insulation cotton layers are arranged in shell one 441 and shell two 442, the heat preservation layers are arranged on the inner side, the sound insulation cotton layers are arranged between the heat preservation layers and the inner walls of shell one 441 and shell two 442, the thickness of the sound insulation cotton layers is greater than 3cm, the arrangement of noise reduction piece 440 can reduce the noise of main pump assembly one 300, main pump assembly two 400 and pressure stabilizing pump assembly 500, and the noise influence of the equipment on the surrounding environment can be reduced.

[0040] The left surface lower back side and the right surface lower back side of the shell one 441 are respectively provided with a front semicircular clamping groove one, the left surface lower front side and the right surface lower front side of the shell two 442 are respectively provided with a rear semicircular clamping groove one, and the front semicircular clamping groove one and the rear semicircular clamping groove one at the corresponding positions of the shell one 441 and the shell two 442 are combined to form a complete circular through groove for clamping the part connected with the connecting flange 431 at the lower end of the pump body 432.

[0041] The middle of the upper end of the shell one 441 and the middle of the upper end of the shell two 442 are respectively provided with a semicircular clamping groove two 445, and the two clamping grooves two 445 form a complete circular through groove for clamping the part connected with the motor 433 at the upper end of the pump body 432.

[0042] The structure of the main pump assembly one 300 is same as that of the main pump assembly two 400, the structure of the stable pressure pump assembly 500 is same as that of the main pump assembly two 400, the pressure pump 100, the main pump assembly one 300, the main pump assembly two 400 and the stable pressure pump assembly 500 are electrically connected with the control box 600 through wires, and the pressure sensor one 220 and the pressure sensor two 720 are electrically connected with the control box 600 through wires.

[0043] As a second embodiment of the utility model, the noise reduction piece 440 is installed at the lower end of the main pump assembly one 300, the main pump assembly two 400 and the pressure pump 100, in actual use, the shell one 441 and the shell two 442 are both provided with a heat preservation layer and a sound insulation cotton layer, the heat preservation layer is arranged on the inner side, the sound insulation cotton layer is arranged between the heat preservation layer and the inner wall of the shell one 441 and the shell two 442, the thickness of the sound insulation cotton layer is greater than 3cm, through the wrapping of the shell one 441 and the shell two 442, part of the noise generated by the main pump assembly one 300, the main pump assembly two 400 and the pressure pump 100 can be intercepted and weakened, so that the noise interference generated by the main pump assembly one 300, the main pump assembly two 400 and the pressure pump 100 to the outside world is reduced, so that the environment around the equipment can be optimized, and the normal life and work and study of the surrounding environment are avoided.

[0044] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A reusable automatic pressure-stabilizing fire pump, comprising: A pressure-stabilizing pump assembly (500) is characterized in that the left and right sides of the pressure-stabilizing pump assembly (500) are respectively fixedly connected to the front inner walls of an input main pipe (200) and an output main pipe (700), and a main pump assembly one (300) and a main pump assembly two (400) for rapid pressurization are installed between the rear sides of the input main pipe (200) and the output main pipe (700), and a control box (600) for intelligent control of water pressure is installed on the front right side of the output main pipe (700). The input main pipe (200) is fixedly connected to the pressure pump (100) at the rear end to assist the pressure stabilizing pump assembly (500) in stabilizing water pressure. A pressure sensor (220) and a pressure gauge (230) for displaying and monitoring the incoming water pressure are installed on the upper side of the rear end of the input main pipe (200). A pressure sensor (720) and a pressure gauge (710) for displaying and monitoring the delivered water pressure are installed on the upper side of the rear end of the output main pipe (700).

2. The reusable automatic pressure-stabilizing fire pump as described in claim 1, characterized in that: The pressure pump (100) is connected to an external water supply pipe via a water pump to ensure that the internal water pressure of the pressure pump (100) is within a set range. A delivery pipe (110) is provided on the lower left side of the pressure pump (100). A one-way valve is installed on the delivery pipe (110) and its left end is fixedly connected to the lower rear end of the input main pipe (200).

3. A reusable automatic pressure-stabilizing fire pump as described in claim 1, characterized in that: The input main pipe (200) and the output main pipe (700) are respectively provided with three equally spaced connecting pipes 1 (210) and 2 in an axisymmetric structure. The pressure sensor 1 (220) and the pressure gauge 1 (230) are both placed on the upper side between the first connecting pipe 1 (210) and the delivery pipe (110) at the rear end of the input main pipe (200). The pressure sensor 2 (720) and the pressure gauge 2 (710) are both placed on the upper surface of the rear side of the first connecting pipe 2 at the rear end of the output main pipe (700).

4. A reusable automatic pressure-stabilizing fire pump as described in claim 1, characterized in that: The main pump assembly 2 (400) includes a switch valve 1 (410), a switch valve 2 (420), and a fire main pump (430). The switch valve 1 (410) is fixedly connected to the lower left side of the fire main pump (430). The switch valve 1 (410) is connected to the input main pipe (200) through a connecting pipe 1 (210).

5. A reusable automatic pressure-stabilizing fire pump as described in claim 4, characterized in that: A second switch valve (420) is fixedly connected to the lower left side of the fire main pump (430). The second switch valve (420) is connected to the output main pipe (700) through the second connecting pipe. The fire main pump (430) includes a pump body (432) and a motor (433). The upper end of the pump body (432) is fixedly connected to the motor (433) that drives the pump body (432). A connecting flange (431) for sealing connection is respectively provided on the lower left and right sides of the pump body (432).

6. A reusable automatic pressure-stabilizing fire pump as described in claim 1, characterized in that: The main pump assembly 2 (400) also includes a noise reduction component (440), which includes a housing 1 (441) and a housing 2 (442). The housing 1 (441) has two fixing ears (444) on the rear side of the left surface and the rear side of the right surface, respectively. The housing 2 (442) has two fixing ears (444) on the front side of the left surface and the front side of the right surface, respectively. The first outer shell (441) and the second outer shell (442) are fixedly connected by four pairs of matching fixing ears (444) and external bolts. Both the first outer shell (441) and the second outer shell (442) are provided with a heat insulation layer and a sound insulation cotton layer. The heat insulation layer is placed on the inner side, and the sound insulation cotton layer is placed between the heat insulation layer and the inner wall of the first outer shell (441) and the second outer shell (442). The thickness of the sound insulation cotton layer is greater than 3cm.

7. A reusable automatic pressure-stabilizing fire pump as described in claim 6, characterized in that: The left and right surfaces of the first outer casing (441) are respectively provided with a front semi-circular groove 1, and the left and right surfaces of the second outer casing (442) are respectively provided with a rear semi-circular groove 1. The front and rear semi-circular grooves 1 and 1 at corresponding positions on the first and second outer casings (441 and 442) are combined to form a complete circular through groove for engaging with the part of the pump body (432) connected to the connecting flange (431) at the lower end. A semi-circular slot 2 (445) is opened downwards at the middle of the rear side of the upper end of the outer shell 1 (441) and the middle of the front side of the upper end of the outer shell 2 (442). The two slots 2 (445) form a complete circular through groove for engaging with the upper end of the pump body (432) and the connection part of the motor (433).

8. A reusable automatic pressure-stabilizing fire pump as described in claim 3, characterized in that: The structure of the first main pump assembly (300) is the same as that of the second main pump assembly (400). The structure of the pressure stabilizing pump assembly (500) is the same as that of the second main pump assembly (400). The pressure pump (100), the first main pump assembly (300), the second main pump assembly (400), and the pressure stabilizing pump assembly (500) are all electrically connected to the control box (600) through wires. The first pressure sensor (220) and the second pressure sensor (720) are both electrically connected to the control box (600) through wires.

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