Pressure stabilizing device

Abstract

The utility model provides a voltage stabilizer. The device comprises a first pressure stabilizing unit, a second pressure stabilizing unit and a water supply port, the first pressure stabilizing unit comprises a diaphragm type air pressure tank; the second pressure stabilizing unit comprises a pressure stabilizing pump; wherein the first pressure stabilizing unit is located between the water supply port and the second pressure stabilizing unit, and the water supply port, the first pressure stabilizing unit and the second pressure stabilizing unit are connected through pipelines. Compared with the prior art, the pressure maintaining and stabilizing device has at least one of the following beneficial effects that operation is conducted in a frequency conversion mode and an intermittent mode, the frequent starting and stopping frequency of the pressure stabilizing pump is reduced, the service life of the pressure stabilizing pump is prolonged, efficiency and energy saving are achieved, operation is stable, operation is convenient, maintenance is easy, pressure maintaining and pressure stabilizing can be effectively conducted on a fire-fighting pipe network system, and the danger level is reduced.

Description

Technical Field

[0001] The utility model relates to the field of water supply, in particular to a voltage stabilizing device. Background Art

[0002] The pressure stabilizing device is a water supply device used to maintain the stable pressure of the water supply system such as the fire water outlet, so that the system water pressure is always in the required pressure state. When a fire occurs, the sprinkler or fire hydrant needs to drain water, and the water volume and water pressure required for fire fighting can be discharged to maintain the pressure of the water outlet system stable. However, the pressure stabilizing device in the prior art mainly includes an intermittent pressure stabilizing device and a variable frequency pressure stabilizing device, and most of them use an external water source to supplement the pressure of the fire water outlet system, resulting in low water pressure; or use a primary water source to supplement the pressure of the fire water outlet system, resulting in abnormal operation of the water pump, frequent pressure fluctuations, and the need to strengthen the maintenance and control of the water pump. When the intermittent pressure stabilizing device is used to achieve the stable operation, when the water in the pressure stabilizing device is insufficient, it is necessary to manually open and close the main valve to replenish the water source in the pressure stabilizing device, which is complicated to operate, expensive to maintain, and there are hidden dangers and risks of fire emergency; when the variable frequency pressure stabilizing device is used to achieve the stable operation, when the fire protection system is not seriously leaking, it is always operated continuously through variable frequency voltage stabilization, resulting in excessive power consumption and a large waste of energy.

[0003] Therefore, the current voltage stabilizing device still needs to be improved. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a voltage stabilizing device to at least alleviate or even solve at least one of the problems raised in the above background technology to a certain extent.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a pressure stabilizing device, which includes: a first pressure stabilizing unit, a second pressure stabilizing unit and a water supply port; the first pressure stabilizing unit includes a diaphragm air pressure tank; the second pressure stabilizing unit includes a pressure stabilizing pump; wherein the first pressure stabilizing unit is located between the water supply port and the second pressure stabilizing unit, and the water supply port, the first pressure stabilizing unit and the second pressure stabilizing unit are all connected by a pipeline.

[0006] Furthermore, the first pressure stabilizing unit includes one or more diaphragm-type air pressure tanks, wherein the diaphragm-type air pressure tank includes a tank body, wherein the tank body is provided with a rubber diaphragm, and the rubber diaphragm separates the tank body into a gas chamber and a water chamber.

[0007] Furthermore, the water chamber portion has a water inlet and an outlet, and the gas chamber has an air filling port.

[0008] Furthermore, the butyl rubber diaphragm is fixed in the tank body through a steel ring.

[0009] Furthermore, the device further comprises a control unit, and the control unit is connected to the second voltage stabilizing unit.

[0010] Furthermore, the device further comprises a pressure transmitting unit, which is arranged on a pipeline between the first pressure stabilizing unit and the second pressure stabilizing unit and is electrically connected to the control unit.

[0011] Furthermore, the diaphragm pressure tank further comprises a diaphragm replacement hole, and a first valve assembly is provided at the water inlet and outlet of the diaphragm pressure tank; the diaphragm replacement hole is arranged at the top of the tank body; and the first valve assembly comprises a rising stem gate valve.

[0012] Furthermore, the second pressure stabilizing unit includes one or more of the pressure stabilizing pumps, and a second valve assembly is provided at the outlet of the pressure stabilizing pump; the second valve assembly includes at least one of a rubber flexible connection nipple, a check valve and a rising stem gate valve.

[0013] Furthermore, the pressure-stabilizing pump comprises a vertical long-axis pressure-stabilizing pump, and the vertical long-axis pressure-stabilizing pump is connected to a water storage tank.

[0014] Furthermore, the vertical long-axis pressure-stabilizing pump includes a motor, a transmission shaft connected to the motor, and a water suction pipe, a water inlet, and a water outlet that are interconnected.

[0015] The utility model has at least one of the following beneficial effects:

[0016] 1. The diaphragm-type air pressure tank used in the voltage stabilizing device of the utility model abandons the existing simple design mode, has a unique internal diaphragm structure, and is fixed with a steel ring to achieve the functions of filling and discharging water;

[0017] 2. The diaphragm type air pressure tank of the utility model uses high-quality butyl rubber diaphragm for the pressure stabilizing device, which rebounds quickly and expands more than 1 million times, far higher than the existing level. The expansion direction of the diaphragm is straight up and down without tilting, which effectively smoothes the pressure fluctuation of the water pipe network, reduces the frequent start and stop frequency of the pressure stabilizing pump, and prolongs the service life of the pressure stabilizing pump;

[0018] 3. The voltage stabilizing device of the utility model adopts a vertical long-axis voltage stabilizing pump, which is highly efficient and energy-saving (about 20% energy-saving than other types of pumps), runs smoothly, and the vibration intensity and amplitude are much higher than the relevant national standards. It runs smoothly, the water suction height is 2-10 meters, and no water is required to be poured or diverted, no bottom valve is required to be installed, and no water suction pipeline is required. It can be started directly after being supported and effectively fixed;

[0019] 4. The voltage stabilizing device of the utility model can be freely switched between the "automatic / manual" mode, one for use and one for standby, and can also be freely switched between the "variable frequency / intermittent" operation mode to extend the service life of the voltage stabilizing pump and save power consumption;

[0020] 5. The operating status information of the pressure stabilizing pump in the pressure stabilizing device of the utility model can be fed back to the fire control room in a timely manner, which is convenient for the fire control personnel to monitor and make timely judgments;

[0021] 6. The voltage stabilizing device of the utility model is easy to operate and maintain.

[0022] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0024] Figure 1 It is a front view of a voltage stabilizing device according to an embodiment of the utility model;

[0025] Figure 2 It is a partial structural schematic diagram of a voltage stabilizing device according to an embodiment of the utility model;

[0026] Figure 3 It is a partial structural schematic diagram of a voltage stabilizing device according to an embodiment of the utility model;

[0027] Figure 4 It is a top view of a voltage stabilizing device according to an embodiment of the present utility model.

[0028] Explanation of the accompanying drawings: 100-first pressure stabilizing unit, 110-tank body, 120-gas chamber, 130-rubber diaphragm, 140-water chamber, 150-inflating port, 160-water inlet and outlet, 170-diaphragm replacement hole, 180-leg, 200-second pressure stabilizing unit, 210-motor, 220-drive shaft, 230-suction pipe, 240-water inlet, 250-water outlet, 260-fixed support, 270-water stop, 280-filter, 300-water supply port, 400-control unit, 500-pressure transmitting unit, 10-first valve assembly, 20-second valve assembly, 30-third valve assembly. DETAILED DESCRIPTION

[0029] In order to more clearly understand the technical features, purposes and beneficial effects of the utility model, the technical solution of the utility model is now further described in detail. In the following, only some exemplary embodiments are simply described. As those skilled in the art will appreciate, the described embodiments can be modified in various ways without departing from the spirit or scope of the present application. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0030] In one aspect of the present invention, the present invention provides a voltage stabilizing device. Figure 1 The device includes a first pressure stabilizing unit 100, a second pressure stabilizing unit 200 and a water supply port 300. The first pressure stabilizing unit 100 is located between the water supply port 300 and the second pressure stabilizing unit 200, and the water supply port 300, the first pressure stabilizing unit 100 and the second pressure stabilizing unit 200 are all connected by pipelines; wherein the first pressure stabilizing unit 100 includes a diaphragm air pressure tank, and the second pressure stabilizing unit 200 includes a pressure stabilizing pump. The pressure stabilizing device has at least one of the following beneficial effects: it adopts "variable frequency / intermittent" two modes of operation, reduces the frequent start and stop frequency of the pressure stabilizing pump, prolongs the service life of the pressure stabilizing pump, is highly efficient and energy-saving, operates smoothly, is easy to operate, is easy to maintain, can effectively maintain and stabilize the pressure of the fire pipe network system, and reduces the danger level.

[0031] For ease of understanding, the following first briefly describes the principle by which the device can achieve the above beneficial effects:

[0032] As mentioned above, the devices currently used for stabilizing the pressure of water supply systems, especially fire water outlet systems, mainly include intermittent operation devices and variable frequency operation devices. The existing intermittent operation devices cannot automatically replenish the pressure of the water outlet system, and have defects such as high maintenance costs. The pressure-stabilizing pump in the existing variable frequency operation device is always running, and compared with intermittent startup, the power consumption is relatively large. The device proposed by the utility model can adopt two operation modes of "variable frequency / intermittent". Specifically, the present application can realize automatic replenishment of water pressure when the pressure changes by adding the structure of the first pressure stabilizing unit 100 between the water supply port and the second pressure stabilizing unit, thereby simplifying the pressure replenishment operation. And the first pressure stabilizing unit 100 can reduce the startup frequency of the second pressure stabilizing unit, thereby reducing the overall maintenance cost of the device. In the case where the fire water outlet system is not seriously leaking, during daily operation, in the pressure stabilizing device of the present application, the second pressure stabilizing unit is generally started no more than 6 times per hour, and the "intermittent" operation mode can be adopted, which can greatly reduce power consumption. When the fire water outlet system leaks seriously and causes the pressure-stabilizing pump to start frequently (more than 15 times per hour), the "Fire Water Supply and Fire Hydrant System Technical Specifications" GB50974-2014: 5.3.4 clause is no longer met. The pressure-stabilizing device of this application can quickly switch to the "variable frequency" operation mode to avoid the frequent start and stop of the pressure-stabilizing pump, which may lead to a shortened life of the pressure-stabilizing pump, or accelerate the frequent failure of the pressure-stabilizing pump, and achieve constant operation of the overall pressure-stabilizing system. In other words, the pressure-stabilizing device of the utility model can adopt the "intermittent" operation mode to achieve continuous reciprocating operation of the low-limit pressure and the high-limit pressure, and can also adopt the "variable frequency" operation mode to achieve stable operation.

[0033] The following is a detailed description of the various units and components of the device according to the specific embodiments of the present invention:

[0034] According to an embodiment of the utility model, the number of diaphragm air pressure tanks in the first pressure stabilizing unit 100 is not subject to special restrictions and may include one or more; the number of pressure stabilizing pumps in the second pressure stabilizing unit 200 is also not subject to special restrictions and may include one or more. And the volume of each diaphragm air pressure tank or pressure stabilizing pump is not subject to special restrictions, and can be specifically determined according to the size of the space at the installation site. The specific material of the pipe connecting the water supply port 300, the first pressure stabilizing unit 100 and the second pressure stabilizing unit 200 is also not subject to special restrictions, for example, it may include a carbon steel pipe, preferably a DN100 PN16 carbon steel pipe. The number, size and material of the above-mentioned structural components can be selected according to the specific situation of the fire protection network pipe connected to the water supply port 300 of the pressure stabilizing device.

[0035] In the "intermittent" operating mode, according to the embodiment of the present utility model, reference Figure 2The specific structure of the diaphragm air pressure tank is not particularly limited, as long as it can automatically or semi-automatically replenish water according to the pressure in the pipeline connected to it. For example, the diaphragm air pressure tank may include a tank body 110, a rubber diaphragm 130, a gas chamber 120, and a water chamber 140. The rubber diaphragm 130 divides the inside of the tank body 110 into two independent spaces, one side is the gas chamber 120, and the other side is the water chamber 140. The tank body 110 on one side of the water chamber 140 has a water inlet and outlet 160, and the tank body 110 on one side of the gas chamber 120 has a charging port 150 to inject gas into the gas chamber 120. The water inlet and outlet 160 are connected to the water supply port of the device (such as a pipe) through the pipeline. Figure 1 300) shown in the figure. An appropriate amount of water can be stored in the water chamber 140, for example, it can be pumped into the water chamber 140 from the water inlet and outlet 160 by the pressure-stabilizing pump in the second pressure-stabilizing unit 200. When the inflation port 150 is closed, the rubber diaphragm 130 is deformed at this time, thereby compressing the gas on one side of the gas chamber 120, and the pressure increases. When the pressure of the entire fire-fighting network pipe reaches the stable pressure range, the pressure-stabilizing pump stops pumping water into the water chamber 140, and the fire-fighting network pipe is in a pressure-maintaining state. The specific range of the upper limit pressure of the stable pressure range is not particularly limited, for example, it can be 0.6-0.8MPa, which can be set according to the specific situation of the fire-fighting network pipe. When the water pressure in the fire-fighting network pipe is reduced to a certain pressure (for example, the lower limit pressure can be 0.2-0.4MPa), due to the pressure difference, the compressed gas in the gas chamber 120 expands based on Boyle's gas law, pushing the rubber diaphragm 130 to move to the side of the water chamber 140, and then the water in the water chamber 140 is discharged from the water inlet and outlet 160 and pressed out to adjust the pressure of the fire-fighting network. When the gas pressure on the side of the gas chamber 120 is reduced to the original inflation state, balance is achieved, and the water inlet and outlet 160 in the water chamber 140 stops supplying water to the water supply port. This process can replenish the pressure of the fire-fighting network without starting the pressure-stabilizing pump, avoiding the early start of the pressure-stabilizing pump. When the pressure of the fire-fighting network continues to drop to a certain pressure and cannot be stabilized by the first pressure-stabilizing unit 100, the pressure-stabilizing pump of the second pressure-stabilizing unit 200 is started, which can simultaneously replenish the pressure of the first pressure-stabilizing unit 100 and the fire-fighting network. For example, the pressure-stabilizing pump can be started when the fire network pipe pressure drops to 0.2-0.4 MPa, and stop working when the fire network pipe pressure is restored and the air pressure on one side of the gas chamber 120 of the diaphragm air pressure tank reaches the stable pressure range of the pressure-maintaining state.

[0036] According to the embodiment of the utility model, when the fire protection system leaks seriously and causes the pressure stabilizing pump to start frequently, the starting frequency of the pressure stabilizing pump exceeds 15 times / h, and the pressure stabilizing device can quickly and automatically switch to the "variable frequency" operation mode, operate according to the set fixed value of the device pressure (0.2-0.8MPa), and stop the "intermittent" operation mode, so that the pressure stabilizing pump of the second pressure stabilizing unit 200 is always in the started state, thereby realizing the constant operation of the overall pressure stabilizing system.

[0037] In a specific embodiment, the rubber diaphragm 130 can be fixed in the tank body 110 by a steel ring to make it more stable. The specific material of the rubber diaphragm 130 is not particularly limited, and is preferably a butyl rubber diaphragm. This type of rubber diaphragm rebounds quickly, has a large number of expansion times, up to more than 1 million times, and the expansion direction is straight up and down without tilting. The rubber diaphragm 130 does not require additional more complex components to achieve continuous and stable operation of the voltage stabilizing device, and the disassembly and replacement steps are simple.

[0038] In a specific embodiment, the type of gas in the gas chamber 120 is not particularly limited, for example, including but not limited to air, nitrogen or a combination thereof. In addition, the positions of the gas filling port 150 and the water inlet and outlet 160 are not particularly limited. For example, the gas filling port 150 can be located at any position on the tank body 110 on one side of the gas chamber 120, and the water inlet and outlet 160 can be located at any position on the tank body 110 on one side of the water chamber 140. In a specific embodiment, the gas filling port 150 is preferably at the top, and the water inlet and outlet 160 is preferably at the bottom. In a specific embodiment, the diaphragm type air pressure tank may further include a diaphragm replacement hole 170, which is used to replace the rubber diaphragm 130. The position of the diaphragm replacement hole 170 is not particularly limited, as long as the rubber diaphragm 130 can be replaced. For example, in a specific embodiment, it can be set at the top of the tank body 110. In addition, the diaphragm type air pressure tank may further include a fixing component to fix the diaphragm type air pressure tank, wherein the fixing component includes but is not limited to the support leg 180.

[0039] According to the embodiment of the present utility model, referring to Figure 3 The pressure-stabilizing pump can be a vertical long-axis pressure-stabilizing pump, which is energy-efficient and runs smoothly. The water suction height is 2-10 meters. It does not require water diversion, does not require the installation of a bottom valve, and does not require external piping. It can be directly started after being supported and effectively fixed, and can be directly connected to the fire water tank to supply water to the diaphragm air pressure tank and the fire pipe network. Specifically, the vertical long-axis pressure-stabilizing pump includes a motor 210, a transmission shaft 220, a suction pipe 230, a water inlet 240, and a water outlet 250. The motor 210 is connected to the transmission shaft 220 to provide power for the interconnected suction pipe 230, the water inlet 240, and the water outlet 250, so as to transport the water in the fire water tank from the water inlet 240 to the water outlet 250, and inject water into the first pressure-stabilizing unit 100 and the fire pipe network. In addition, the vertical long-axis pressure-stabilizing pump may further include a fixed support 260 to fix it, and may also include a water stop 270 and a filter 280 to control the inflow of water and filter the inflowing water to reduce impurities flowing into the pressure-stabilizing device.

[0040] According to the embodiment of the present utility model, referring to Figure 4The first pressure stabilizing unit 100 may include a diaphragm air pressure tank, and the second pressure stabilizing unit 200 may include two pressure stabilizing pumps.

[0041] In some embodiments, the voltage stabilizing device may further include a control unit 400, which is connected to the second voltage stabilizing unit 200 to achieve automatic operation and automatic switching between "variable frequency / intermittent" operation modes.

[0042] In some embodiments, the device may further include a pressure transmitter unit 500. The pressure transmitter unit 500 is disposed on the pipeline between the first pressure stabilizing unit 100 and the second pressure stabilizing unit 200, and is electrically connected to the control unit 400. The control unit 400 may be an electronic control unit, which is connected to the second pressure stabilizing unit 200 and the pressure transmitter unit 500, respectively. The pressure transmitter unit 500 feeds back the pipeline pressure state to the electronic control unit, and then controls the operation of the second pressure stabilizing unit 200 through the electronic control unit.

[0043] In addition, the pressure stabilizing device may further include a valve assembly, wherein the valve assembly includes at least one of a first valve assembly 10, a second valve assembly 20, and a third valve assembly 30. The first valve assembly 10 is disposed at the outlet of the first pressure stabilizing unit 100, the second valve assembly 20 is disposed at the outlet of the second pressure stabilizing unit 200, and the third valve assembly 30 is disposed at the water supply port 300. The first valve assembly 10 includes a rising stem gate valve, and the second valve assembly 20 includes at least one of a rubber flexible connection nipple, a check valve, and a rising stem gate valve.

[0044] In addition, in a specific embodiment, in addition to controlling the operating status of the second voltage stabilizing unit 200, the control unit 400 can also promptly feedback the operating status information of the second voltage stabilizing unit 200 to the fire control room, so that the fire control personnel can monitor the voltage stabilizing device and make timely judgments during the work process.

[0045] According to the embodiment of the utility model, the voltage stabilizing device can be freely switched between the "automatic / manual" mode and the "variable frequency / intermittent" operation mode. Specifically, the opening and closing of the second voltage stabilizing unit 200 can be controlled by the electronic control unit to inject water into the first voltage stabilizing unit 100 and the fire pipe network to replenish the pressure, or the opening and closing of the second voltage stabilizing unit 200 can be manually adjusted to inject water into the first voltage stabilizing unit 100 and the fire pipe network to replenish the pressure, thereby achieving continuous voltage stabilization operation. In addition, the voltage stabilizing device can also be controlled by the electronic control unit to switch between the "variable frequency / intermittent" operation modes. Specifically, when the fire water outlet system leaks seriously and the voltage stabilizing pump is frequently started, the voltage stabilizing pump of the second voltage stabilizing unit 200 can be always in the open state, and the pressure in the voltage stabilizing device can be set to a constant value (for example, 0.2-0.8MPa). In a specific embodiment, when the second voltage stabilizing unit 200 includes multiple voltage stabilizing pumps, only one voltage stabilizing pump may be used for operation at a time, and the remaining voltage stabilizing pumps may be used as backup so that the other voltage stabilizing pumps can be used for operation when one of the voltage stabilizing pumps fails to operate.

[0046] According to the embodiment of the utility model, before installing the voltage stabilizing device, the size of the space around the installation site should be confirmed to ensure that there is enough distance to facilitate operation and maintenance; and before using the voltage stabilizing device, the gas chamber 120 outside the inner diaphragm of the first voltage stabilizing unit 100 should be filled with gas through the gas filling port 150 until the gas pressure is 0.4-0.6MPa, and the gas includes but is not limited to air, nitrogen or a combination thereof. And during the operation, it is not allowed to work under conditions exceeding the working pressure, wherein the maximum working pressure inside the system can be 1.6MPa.

[0047] For ease of understanding, the following is a brief description of the operation process of the pressure stabilizing device: First, the pressure stabilizing device can be debugged before it is put into use. Specifically, the maximum value and the minimum value of the pressure in the pipeline of the device can be set first. Since the diaphragm pressure tank, pressure stabilizing pump, water supply port and fire network pipe in the device are connected, the pressure value can be used to maintain the water pressure of the fire network pipe. In the initial state of the device being put into use, it can be operated in the "intermittent" operation mode. Specifically, the pressure stabilizing pump of the second pressure stabilizing unit 200 is first turned on to fill the water chamber of the diaphragm pressure tank of the first pressure stabilizing unit 100 with water. When the pressure of the device reaches the maximum value, the diaphragm pressure tank reaches the pressure holding state, and the pressure stabilizing pump automatically stops running. When the water pressure of the fire network pipe decreases after water supply, the first pressure stabilizing unit 100 first supplies water to the fire network pipe to restore the water pressure. When the system pressure drops to the minimum value of the device pressure value, the pressure stabilizing pump automatically runs to supply water to the fire network pipe and the first pressure stabilizing unit 100 to achieve the pressure stabilization function. Among them, the specific values ​​of the maximum pressure and the minimum pressure of the device are not particularly limited, as long as the maximum pressure of the device is higher than the minimum pressure and both are within the range of 0-1.6MPa. For example, the maximum pressure of the device is preferably any value within the range of 0.6-0.8MPa, and the minimum pressure of the device is preferably any value within the range of 0.2-0.4MPa.

[0048] When the fire protection system leaks seriously and causes the pressure-stabilizing pump to start frequently, the pressure-stabilizing device of the present application can be quickly switched to the "variable frequency" operation mode under the control of the control unit 400. In the "variable frequency" operation mode, it is only necessary to adjust the frequency conversion parameters in the control unit 400 and select the device pressure (0.2-0.8MPa) as a fixed value to make the pressure-stabilizing pump run automatically and supply water to the fire protection network management and the first pressure-stabilizing unit 100, thereby realizing the pressure stabilization and constant pressure function.

[0049] During the debugging process, the operating status of the pressure-stabilizing pump can also be monitored. As long as the number of starts is no more than 15 times / h, the switching between the "variable frequency / intermittent" modes is normal, and the operation is stable and vibration-free, it is fine.

[0050] In general, the voltage stabilizing device proposed by the utility model can be freely switched between the "automatic / manual" mode and the "variable frequency / intermittent" operation mode. When the fire protection system is not leaking seriously, the intermittent operation mode is adopted, otherwise, the variable frequency operation mode is adopted. And by adopting a diaphragm pressure tank with a unique internal structure and a vertical long-axis pressure stabilizing pump that can be used directly after being fixed, it can effectively maintain and stabilize the pressure of the fire protection pipe network system, greatly reduce the danger level, greatly enhance the fire emergency response capability, and quickly feedback signals to the control personnel of the fire control center in case of emergencies for effective disposal.

[0051] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive.

[0052] In the present disclosure, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0053] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A voltage stabilizing device, characterized in that: The pressure stabilizing device comprises: a first pressure stabilizing unit, a second pressure stabilizing unit and a water supply port; The first pressure stabilizing unit includes a diaphragm air pressure tank; The second voltage stabilizing unit includes a voltage stabilizing pump; Wherein, the first pressure stabilizing unit is located between the water supply port and the second pressure stabilizing unit, and the water supply port, the first pressure stabilizing unit and the second pressure stabilizing unit are all connected by a pipeline; The first pressure stabilizing unit comprises one or more diaphragm-type air pressure tanks, wherein the diaphragm-type air pressure tank comprises a tank body, wherein a rubber diaphragm is disposed inside the tank body, wherein the rubber diaphragm separates the tank body into a gas chamber and a water chamber, wherein the water chamber part has a water inlet and a water outlet; The diaphragm type air pressure tank further comprises a diaphragm replacement hole, and the water inlet and outlet of the diaphragm type air pressure tank are provided with a first valve assembly; The diaphragm replacement hole is arranged on the top of the tank body; The first valve assembly includes a rising stem gate valve.

2. The device according to claim 1, characterized in that The gas chamber has a gas filling port.

3. The device according to claim 1, characterized in that The rubber diaphragm is fixed in the tank body by a steel ring.

4. The device according to claim 1, characterized in that The device further comprises a control unit, which is connected to the second voltage stabilizing unit.

5. The device according to claim 4, characterized in that The device further comprises a pressure transmitting unit, which is arranged on a pipeline between the first pressure stabilizing unit and the second pressure stabilizing unit and is electrically connected to the control unit.

6. The device according to claim 1, characterized in that The second pressure stabilizing unit includes one or more pressure stabilizing pumps, and a second valve assembly is provided at the outlet of the pressure stabilizing pump; The second valve assembly includes at least one of a rubber flexible connection nipple, a check valve and a rising stem gate valve.

7. The device according to claim 6, characterized in that The pressure-stabilizing pump comprises a vertical long-axis pressure-stabilizing pump, and the vertical long-axis pressure-stabilizing pump is connected to a water storage tank.

8. The device according to claim 7, characterized in that The vertical long-axis pressure-stabilizing pump comprises a motor, a transmission shaft connected to the motor, and a water suction pipe, a water inlet and a water outlet connected to each other.

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