CN115324165A - Variable flow fire-fighting voltage stabilizing device with measurement and control integrated function and voltage stabilizing method - Google Patents
Variable flow fire-fighting voltage stabilizing device with measurement and control integrated function and voltage stabilizing method Download PDFInfo
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- CN115324165A CN115324165A CN202211037325.8A CN202211037325A CN115324165A CN 115324165 A CN115324165 A CN 115324165A CN 202211037325 A CN202211037325 A CN 202211037325A CN 115324165 A CN115324165 A CN 115324165A
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- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 65
- 238000005259 measurement Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 147
- 238000013461 design Methods 0.000 claims abstract description 16
- 238000012544 monitoring process Methods 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims description 24
- 239000012530 fluid Substances 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims description 3
- 230000007363 regulatory process Effects 0.000 claims 1
- 230000001186 cumulative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B11/00—Arrangements or adaptations of tanks for water supply
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/04—Domestic or like local pipe systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/072—Arrangement of flowmeters
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/07—Arrangement of devices, e.g. filters, flow controls, measuring devices, siphons or valves, in the pipe systems
- E03B7/075—Arrangement of devices for control of pressure or flow rate
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Abstract
The embodiment of the application provides a variable flow fire-fighting pressure stabilizing device with measurement and control integrated function and a pressure stabilizing method, the flow of a fire-fighting pressure stabilizing pump is designed and determined according to the maximum design flow meeting the standard requirement of a second running state of leakage of a fire-fighting main pipe network, a measurement adjusting component is arranged between a fire-fighting pressure stabilizing water supply pipeline and a water outlet pipeline, the running state of the fire-fighting main pipe network is monitored in real time by using the measurement adjusting component, the actual outlet flow of the water outlet pipeline is adjusted according to a monitoring result, the standard requirement of different running states of the fire-fighting main pipe network can be met, and the standard requirement of the whole running process of a fire-fighting water supply system can be completely responded.
Description
Technical Field
The invention relates to the field of fire water supply, in particular to a variable flow fire protection pressure stabilizing device with a measurement and control integrated function and a pressure stabilizing method.
Background
According to the requirements of relevant fire water supply design specifications, a fire protection pressure stabilizing (boosting) device of a fire water supply system needs to meet the leakage-free operation state of a pipeline in the initial stage of design and operation and meet the leakage-free operation state of leakage caused by pipeline failure or aging in the later stage of operation, so that a fire protection pressure stabilizing pump of the fire water supply system needs to adapt to the variable flow of different operation states.
The structure of the conventional fire-fighting pressure stabilizing (increasing) device is generally shown in a dotted line frame of fig. 1, and comprises two fire-fighting pressure stabilizing water supply pipelines 1 which are used and provided one by one, wherein the water inlet ends of the two fire-fighting pressure stabilizing water supply pipelines 1 are both in fluid communication with a fire-fighting water tank 2, and the water outlet ends of the two fire-fighting pressure stabilizing water supply pipelines 1 are communicated with a fire-fighting main pipe network through the same water outlet pipeline 3; the flow rates of the fire-fighting stabilized pressure pumps 11 of the two fire-fighting stabilized pressure water supply pipelines 1 are generally designed and determined according to a leakage-free operation state in an operation initial stage, and cannot adapt to a leakage operation state in an operation later stage, and the leakage rate of a fire-fighting water supply system pipeline cannot be measured and calculated, so that the flow rate of the fire-fighting stabilized pressure pumps cannot be changed in the operation later stage, and the conventional fire-fighting pressure stabilizing (increasing) device cannot completely respond to all requirements of related fire-fighting water supply design specifications.
Therefore, it is necessary to develop a variable flow fire-fighting voltage stabilizer with measurement and control integration function and a voltage stabilizing method thereof to solve the above technical problems.
Disclosure of Invention
The embodiment of the invention provides a variable flow fire-fighting pressure stabilizing device with a measurement and control integrated function and a pressure stabilizing method, and aims to solve the technical problems that the flow of a fire-fighting pressure stabilizing pump is difficult to change in the later operation stage of the conventional fire-fighting pressure stabilizing (boosting) device, and the conventional fire-fighting pressure stabilizing device cannot adapt to the leakage operation state in the later operation stage.
The variable flow fire-fighting pressure stabilizing device with the measurement and control integrated function comprises two fire-fighting pressure stabilizing water supply pipelines, wherein one fire-fighting pressure stabilizing water supply pipeline is used, the other fire-fighting pressure stabilizing water supply pipeline is used, the water inlet ends of the two fire-fighting pressure stabilizing water supply pipelines are both communicated with a fire-fighting water tank through fluid, and the water outlet end of the two fire-fighting pressure stabilizing water supply pipelines is communicated to a fire-fighting main pipe network through the same water outlet pipeline; a measurement adjusting assembly is connected between the two fire-fighting pressure-stabilizing water supply pipelines and the water outlet pipeline;
the fire-fighting main pipe network has a first operation state without leakage and a second operation state with leakage, and the fire-fighting pressure stabilizing pump on each fire-fighting pressure stabilizing water supply pipeline is configured to meet the maximum design flow required by the second operation state specification; the measurement and adjustment assembly is configured to monitor the operation state of the fire-fighting main pipe network in real time and adjust the actual outlet flow of the water outlet pipeline to meet the specification requirements of different operation states.
Optionally, the measurement adjustment assembly comprises a measurement line and a first return line; the water inlet end of the measuring pipeline is in fluid communication with the water outlet end of the fire-fighting pressure-stabilizing water supply pipeline, the water outlet end of the measuring pipeline is in fluid communication with the water inlet end of the water outlet pipeline, and a flowmeter capable of measuring and calculating instantaneous flow and accumulated water amount is installed on the measuring pipeline; the water inlet end of the first return pipeline is communicated between the fire-fighting pressure-stabilizing water supply pipeline and the measuring pipeline, the water outlet end of the first return pipeline is communicated to the fire-fighting water tank, and a first adjusting valve capable of adjusting the opening degree is installed on the first return pipeline.
Optionally, the measurement adjusting assembly further includes a second return line, a water inlet end of the second return line is communicated between the measurement line and the water outlet line, a water outlet end of the second return line is communicated to the fire water tank, and a second adjusting valve capable of adjusting the opening degree is installed on the second return line.
Optionally, a check valve and a matched maintenance valve are also installed on the measuring pipeline.
Optionally, the fire-fighting pressure-stabilizing pump on the fire-fighting pressure-stabilizing water supply pipeline has two states of manual control and automatic control.
The embodiment of the invention also provides a fire protection voltage stabilizing method adopting the variable flow fire protection voltage stabilizing device with the measurement and control integrated function, which comprises the following steps:
s1, closing the first adjusting valve, manually starting a fire-fighting pressure stabilizing pump on the fire-fighting pressure stabilizing water supply pipeline, and measuring the actual outlet flow of the fire-fighting pressure stabilizing pump, namely the maximum design flow required by the second running state specification by using the flowmeter;
s2, opening the first regulating valve, appropriately shunting water supply of the fire-fighting pressure-stabilizing water supply pipeline by using the first return pipeline, and regulating the opening degree of the first regulating valve to enable the instantaneous flow reading of the flowmeter to meet the design flow of the first operation state, wherein at the moment, the actual outlet flow of the water outlet pipeline can meet the standard requirement of the first operation state, and after the flow regulation is finished, the fire-fighting pressure-stabilizing pump enters an automatic control state;
s3, monitoring the daily accumulated water quantity in real time by using the flowmeter, and if the daily accumulated water quantity has no obvious change, indicating that the fire-fighting main pipe network normally operates in the first operation state; if the daily accumulated water amount is obviously increased, indicating that the fire-fighting main pipe network has leakage, and calculating the leakage flow by using the increased accumulated water amount;
and S4, if the fire-fighting main pipe network has leakage, repeating the flow regulation process in the step S1 and the step S2, after the actual flow of the fire-fighting pressure stabilizing pump is measured, regulating the opening degree of the first regulating valve to enable the instantaneous flow reading of the flow meter to meet the flow requirement of the second operation state, namely the sum of the design flow and the leakage flow of the first operation state, at the moment, the actual flow of the water outlet pipeline can meet the standard requirement of the second operation state, and after the flow regulation is finished, the fire-fighting pressure stabilizing pump recovers the automatic control state.
Optionally, the flow rate adjusting process of step S1 and step S2 further includes opening and adjusting the opening degree of the second adjusting valve to enable the water supply of the fire-fighting pressure-stabilizing water supply pipeline to flow back to the fire water tank; and after the flow regulation is finished, closing the second regulating valve.
Compared with the prior art, the embodiment of the invention has the following beneficial effects: the flow of the fire-fighting pressure-stabilizing pump is designed and determined according to the maximum design flow meeting the second operation state (namely, the fire-fighting main pipe network has leakage) standard requirement, a measurement and adjustment assembly is arranged between the fire-fighting pressure-stabilizing water supply pipeline and the water outlet pipeline, the operation state of the fire-fighting main pipe network is monitored in real time by using the measurement and adjustment assembly, and the actual outlet flow of the water outlet pipeline is adjusted according to the monitoring result, so that the standard requirement of different operation states of the fire-fighting main pipe network can be met, and the standard requirement of the whole operation process of a fire-fighting water supply system can be completely responded.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a fire-fighting pressure stabilizer of a fire-fighting water supply system in the prior art;
fig. 2 is a schematic structural diagram of a variable flow fire-fighting pressure stabilizing device provided by an embodiment of the invention;
the figures in the drawings represent:
1. a fire-fighting pressure-stabilizing water supply pipeline; 11. a fire-fighting pressure stabilizing pump; 2. a fire water tank; 3. a water outlet pipeline; 4. measuring a pipeline; 41. a flow meter; 42. a check valve; 43. a service valve; 5. a first return line; 51. a first regulating valve; 6. a second return line; 61. a second regulating valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. Furthermore, it should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, and are not intended to limit the present invention. In the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
The embodiment of the application provides a variable flow fire control voltage regulator device with observe and control integration function, as show in the dotted line frame A of fig. 2, it includes one and is equipped with two fire control steady voltage supply channels 1, and two fire control steady voltage supply channel 1's the end of intaking all communicates with 2 fluid of fire water tank, and the end of going out water then communicates to fire control main pipe network through same outlet conduit 3. For convenience of description, the leakage-free operation state of the fire-fighting main pipe network is defined as a first operation state, and the leakage-free operation state of the fire-fighting main pipe network is defined as a second operation state, in the embodiment of the present application, the fire-fighting stabilized pressure water supply pump 11 on each fire-fighting stabilized pressure water supply pipeline 1 is designed and determined according to the maximum design flow rate meeting the specification requirement of the second operation state.
This application embodiment is connected with between two fire control steady voltage supply channel 1 and outlet pipe way 3 and measures the adjusting part, measures the running state that the adjusting part can real-time supervision fire control main pipe network to adjust outlet pipe way 3's actual discharge according to the monitoring result, make it can satisfy the standard requirement of the different running state of fire control main pipe network, thereby can respond the standard requirement of fire control water supply system operation overall process completely.
Specifically, the measurement adjustment assembly in the embodiment of the present application is shown in a dashed box B in fig. 2, and includes a measurement line 4 and a first return line 5. Wherein, the water inlet end of the measuring pipeline 4 is in fluid communication with the water outlet end of the fire-fighting pressure-stabilizing water supply pipeline 1, and the water outlet end of the measuring pipeline 4 is in fluid communication with the water inlet end of the water outlet pipeline 3. The measuring pipeline 4 is provided with a flowmeter 41 capable of measuring and calculating instantaneous flow and accumulated water quantity, and the running state of the fire-fighting main pipe network can be monitored in real time by using the flowmeter 41. The end of intaking of first return line 5 feeds through to between fire control steady voltage supply channel 1 and the measuring line 4, and the play water end of first return line 5 then feeds through to fire water tank 2, and the water that flows from fire control steady voltage supply channel 1 can flow back to fire water tank 2 through first return line 5. The first adjusting valve 51 capable of adjusting the opening degree is installed on the first return pipeline 5, and the return flow of the first return pipeline 5 can be adjusted by adjusting the opening degree of the first adjusting valve 51, so that the actual outlet flow of the water outlet pipeline 3 is adjusted, and the standard requirements of different operation states of a fire-fighting main pipe network can be met.
As some optional embodiments, the measurement adjustment assembly in the embodiments of the present application further comprises a second return line 6. The water inlet end of the second return pipeline 6 is communicated between the measuring pipeline 4 and the water outlet pipeline 3, the water outlet end of the second return pipeline 6 is communicated to the fire water tank 2, the second return pipeline 6 is further provided with a second adjusting valve 61 capable of adjusting the opening degree, and water flowing out of the measuring pipeline 4 can flow back to the fire water tank 2 through the second return pipeline 6.
For easy maintenance, a check valve 42 and a corresponding maintenance valve 43 can also be installed on the measuring line 4. In addition, in order to facilitate the adjustment of the operator, the fire-fighting pressure stabilizing pump 11 on the fire-fighting pressure stabilizing water supply pipeline 1 preferably has two states of manual control and automatic control.
The embodiment of the invention also provides a fire-fighting voltage-stabilizing method adopting the variable flow fire-fighting voltage-stabilizing device with the measurement and control integrated function, which mainly comprises the following steps:
s1, closing a first adjusting valve 51, manually starting a fire-fighting pressure stabilizing pump 11 on a fire-fighting pressure stabilizing water supply pipeline 1, wherein at the moment, all water flowing out of the fire-fighting pressure stabilizing water supply pipeline 1 can enter a measuring pipeline 4, and the instantaneous flow measured by a flow meter 41 is the actual outflow rate of the fire-fighting pressure stabilizing pump 11 (namely the maximum design flow rate required by a second operation state specification). During the measurement, can also open and adjust the opening degree of second adjusting valve 61 for the measurement water can flow back to fire water tank 2 through second return line 6.
S2, opening a first adjusting valve 51, wherein at the moment, water flowing out of the fire-fighting pressure-stabilizing water supply pipeline 1 can flow back to the fire-fighting water tank 2 through a first return pipeline 5, so that water supplied by the fire-fighting pressure-stabilizing water supply pipeline 1 can be properly divided by the first return pipeline 5; the opening degree of the first adjusting valve 51 is adjusted until the instantaneous flow reading of the flow meter 41 meets the design flow of the first operation state, at this time, the actual flow of the water outlet pipeline 3 can meet the standard requirement of the first operation state, the flow adjustment is finished, and the fire-fighting pressure stabilizing pump 11 enters an automatic control state (namely, the conventional fire-fighting state of automatically starting to extinguish a fire after receiving a fire-fighting alarm).
In the flow control process, the opening degree of the second regulating valve 61 can be opened and regulated to ensure that the water for regulation can flow back to the fire water tank 2 through the second return pipeline 6, and after the flow control is finished, the second regulating valve 61 is closed.
S3, monitoring the daily accumulated water quantity in real time by using the flowmeter 41, and if the daily accumulated water quantity has no obvious change, indicating that the fire-fighting main pipe network normally operates in a first operation state (namely a non-leakage state); if the daily accumulated water amount is obviously increased, the leakage of the fire-fighting main pipe network is indicated, and the leakage flow can be calculated by utilizing the increased accumulated water amount. The increased cumulative amount of water is divided by the leakage time to obtain the leakage flow, for example, if the cumulative amount of water within 24 hours is significantly increased by 48m compared with the cumulative amount of water counted in daily life 3 Then the 24 hour leakage can be considered to be 48m 3 The leakage flow is 48m 3 /24h=2m 3 /h。
And S4, if the fire-fighting main pipe network has leakage, repeating the flow regulation process in the step S1 and the step S2, after the actual flow of the fire-fighting pressure stabilizing pump 11 is measured, regulating the opening degree of the first regulating valve 51 to enable the instantaneous flow reading of the flow meter 41 to meet the flow requirement of a second running state (namely, the leakage state), namely the sum of the designed flow and the leakage flow of the first running state, at the moment, the actual flow of the water outlet pipeline 3 can meet the standard requirement of the second running state, and after the flow regulation is finished, the fire-fighting pressure stabilizing pump 11 recovers the automatic control state.
For example, if the actual discharge of the fire pump 11 is 5m 3 The design flow required by the first running state specification of the fire-fighting main pipe network is 1m 3 H, leakage flow rate of 2m 3 H, then the opening of the first regulating valve 51 needs to be adjusted so that the instantaneous flow reading of the flow meter 41 is 3m 3 H (remaining 2 m) 3 And/h is shunted and flows back to the fire water tank 2 through the first regulating valve 51), and the standard requirement of the second running state of the fire-fighting main pipe network can be met. It can be understood that the flow rate adjusting process can be performed manually by an operator, or can be performed automatically by a controller, that is, the controller is used for receiving the real-time monitoring result of the flow meter 41, determining the operation state of the fire-fighting main pipe network, and controlling the first adjusting valve 51 and the second adjusting valve according to the determination result61, flow regulation is performed.
The principle and the implementation of the present invention are explained in the present text by applying specific examples, and the above description of the examples is only used to help understanding the technical solution and the core idea of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present invention in its embodiments.
Claims (7)
1. The utility model provides a variable flow fire control voltage regulator device with observe and control integration function, includes one and is equipped with two fire control steady voltage supply channel, two the end of intaking of fire control steady voltage supply channel all communicates with fire water tank fluid, and the water outlet end then communicates to fire control main pipe network, its characterized in that through same outlet pipe way: a measurement adjusting assembly is connected between the two fire-fighting pressure-stabilizing water supply pipelines and the water outlet pipeline;
the fire-fighting main pipe network has a first operation state without leakage and a second operation state with leakage, and the fire-fighting pressure stabilizing pump on each fire-fighting pressure stabilizing water supply pipeline is configured to meet the maximum design flow required by the second operation state specification; the measurement and adjustment assembly is configured to monitor the operation state of the fire-fighting main pipe network in real time and adjust the actual outlet flow of the water outlet pipeline to meet the specification requirements of different operation states.
2. The variable flow fire-fighting pressure stabilizing device with the measurement and control integrated function according to claim 1, characterized in that: the measurement adjusting assembly comprises a measurement pipeline and a first return pipeline; the water inlet end of the measuring pipeline is in fluid communication with the water outlet end of the fire-fighting pressure-stabilizing water supply pipeline, the water outlet end of the measuring pipeline is in fluid communication with the water inlet end of the water outlet pipeline, and a flowmeter capable of measuring and calculating instantaneous flow and accumulated water amount is installed on the measuring pipeline; the water inlet end of the first return pipeline is communicated between the fire-fighting pressure-stabilizing water supply pipeline and the measuring pipeline, the water outlet end of the first return pipeline is communicated to the fire-fighting water tank, and a first adjusting valve capable of adjusting the opening degree is installed on the first return pipeline.
3. The variable flow fire-fighting pressure stabilizing device with measurement and control integrated function according to claim 2, characterized in that: the measuring and adjusting assembly further comprises a second return pipeline, the water inlet end of the second return pipeline is communicated between the measuring pipeline and the water outlet pipeline, the water outlet end of the second return pipeline is communicated to the fire water tank, and a second adjusting valve capable of adjusting the opening degree is installed on the second return pipeline.
4. The variable flow fire-fighting pressure stabilizing device with the measurement and control integrated function according to claim 3, characterized in that: and the measuring pipeline is also provided with a check valve and a matched maintenance valve.
5. The variable flow fire-fighting pressure stabilizing device with the measurement and control integrated function according to claim 4, characterized in that: the fire-fighting pressure stabilizing pump on the fire-fighting pressure stabilizing water supply pipeline has two states of manual control and automatic control.
6. A fire-fighting pressure stabilizing method adopting the variable flow fire-fighting pressure stabilizing device with the measurement and control integrated function as claimed in claim 5, characterized by comprising the following steps:
s1, closing the first regulating valve, manually starting a fire-fighting pressure stabilizing pump on the fire-fighting pressure stabilizing water supply pipeline, and measuring the actual outflow rate of the fire-fighting pressure stabilizing pump by using the flowmeter, namely the maximum design flow rate required by the second running state specification;
s2, opening the first regulating valve, appropriately shunting the water supply of the fire-fighting pressure-stabilizing water supply pipeline by using the first return pipeline, and regulating the opening degree of the first regulating valve to enable the instantaneous flow reading of the flow meter to accord with the designed flow of the first running state, wherein at the moment, the actual flow of the water outlet pipeline can meet the standard requirement of the first running state, and after the flow regulation is finished, the fire-fighting pressure-stabilizing pump enters an automatic control state;
s3, monitoring the daily accumulated water quantity in real time by using the flowmeter, and if the daily accumulated water quantity has no obvious change, indicating that the fire fighting main pipe network normally operates in the first operation state; if the daily accumulated water amount is obviously increased, indicating that the fire-fighting main pipe network has leakage, and calculating to obtain the leakage flow by using the increased accumulated water amount;
and S4, if the fire-fighting main pipe network has leakage, repeating the flow regulation process in the step S1 and the step S2, after the actual flow of the fire-fighting pressure stabilizing pump is measured, regulating the opening degree of the first regulating valve to enable the instantaneous flow reading of the flow meter to meet the flow requirement of the second operation state, namely the sum of the design flow and the leakage flow of the first operation state, at the moment, the actual flow of the water outlet pipeline can meet the standard requirement of the second operation state, and after the flow regulation is finished, the fire-fighting pressure stabilizing pump recovers the automatic control state.
7. A fire protection voltage stabilizing method according to claim 6, characterized in that: the flow regulating process of the step S1 and the step S2 further comprises opening and regulating the opening degree of the second regulating valve so that the water supply of the fire-fighting pressure-stabilizing water supply pipeline can flow back to the fire-fighting water tank; and after the flow regulation is finished, closing the second regulating valve.
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CN202211037325.8A CN115324165A (en) | 2022-08-26 | 2022-08-26 | Variable flow fire-fighting voltage stabilizing device with measurement and control integrated function and voltage stabilizing method |
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