CN215166051U - Pressure-stabilizing water supply system - Google Patents
Pressure-stabilizing water supply system Download PDFInfo
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- CN215166051U CN215166051U CN202120933844.7U CN202120933844U CN215166051U CN 215166051 U CN215166051 U CN 215166051U CN 202120933844 U CN202120933844 U CN 202120933844U CN 215166051 U CN215166051 U CN 215166051U
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Abstract
The utility model relates to a valve group steady voltage control technical field that drenches specifically is a steady voltage water supply system, and female pipe water supply system of fire control connects the steady voltage pump entry, the steady voltage pump export is connected to the energy storage ware through water piping string, accomplishes the steady voltage function of system through booster pump and energy storage ware. And the pressure-stabilizing water supply pipeline is connected to a main water supply line of the deluge valve group system through a water outlet pipeline. The pressure applied to the pressure difference chamber of the deluge valve is higher than the pressure in the pipeline of the deluge valve at the other side when the fire water system operates normally, so that the pressure is kept in a normal working range, and misoperation caused by pressure fluctuation of the fire water supply system is prevented.
Description
Technical Field
The utility model relates to a valve group steady voltage control technical field that drenches specifically is a steady voltage water supply system.
Background
In order to ensure fire safety of a coal bunker bay, a plant automatic fire control system is usually installed in the coal bunker bay, the plant automatic fire control system is usually provided with a plurality of deluge valves, water and fire water in a valve body differential pressure chamber of the deluge valves come from a fire water main pipe, two cavities which are not communicated with each other are arranged in the valve body, the pressure on two sides is balanced in a normal state, and the valves are closed; when fire occurs, the fire control panel receives the on-site thermosensitive cable or glass bubble alarm signal, sends an instruction to operate the corresponding system electromagnetic valve to remove the water pressure of the deluge valve differential pressure chamber, and opens the deluge valve to extinguish fire and spray water.
The deluge valve of the fire control system is installed in the higher position, the normal operating pressure of the fire water system is 0.8-1.0MPA, the actual pressure of the deluge valve acting between the coal bunkers is 0.4-0.6 MPA, and therefore the pressure loss generated by the height difference of the position of the deluge valve is about 0.4 MPA. When the water supply pressure of the main pipe fluctuates too much, namely the pressure of the fire-fighting water system fluctuates, the pressure acting on the two ends of the valve body is unbalanced, the opening value of the deluge valve which acts due to the pressure difference is sometimes reached, the deluge valve is automatically and mistakenly opened, and the nozzle of the deluge valve can spray fire-fighting water to cause unnecessary potential safety hazards.
Therefore, it is necessary to develop a pressure-stabilizing water supply system which can ensure that the pressure of the differential pressure chamber is relatively stable, the pressure is properly increased and stabilized, and the valve can still be normally opened after receiving a command.
SUMMERY OF THE UTILITY MODEL
In view of prior art's defect, the utility model provides a steady voltage water supply system, its fire water supply system that acts on the valve differential pressure room that drenches carries out pressure boost, steady voltage, ensures to use the pressure that the valve differential pressure room that drenches is higher than opposite side valve pipeline internal pressure that drenches, makes it keep in normal working range, prevents it because fire control water supply system pressure fluctuation and maloperation.
In order to achieve the purpose, the utility model provides a technical scheme is a steady voltage water supply system, and in the system, the female pipe water supply system of fire control connects the steady voltage pump entry, the steady voltage pump export is connected to the energy storage ware through steady voltage water supply line, steady voltage water supply line is connected to the valve group system assembly water supply line that drenches through outlet conduit.
Based on the technical scheme, the original water inlet mode of the differential pressure chamber of the deluge valve is changed, water inlet from the original main pipe is eliminated, water is supplied to all the deluge valve differential pressure chambers to form a system, and a pressure-stabilizing water supply pipeline supplies water to a main water supply line of a deluge valve group system, so that the purposes of pressurizing and stabilizing the differential pressure chambers are achieved.
Furthermore, the pressure stabilizing water supply pipeline comprises a first pipe section and a second pipe section, the outlet of the pressure stabilizing pump is connected to the second pipe section through the first pipe section, the second pipe section is connected to the energy accumulator, and the second pipe section is connected to a main water supply line of the deluge valve group system through a water outlet pipeline.
Furthermore, the pressure stabilizing pumps are arranged in two, first pipe sections connected with the pressure stabilizing pumps are connected in parallel, and the two first pipe sections are connected to the energy accumulator through the same second pipe section.
Furthermore, a first check valve and a first gate valve are sequentially arranged on the first pipe section, a second gate valve, a first pressure transmitter and a first safety valve are sequentially arranged at the upstream of the water outlet pipeline on the second pipe section, and a third gate valve is arranged at the position, close to the energy accumulator, of the second pipe section.
Further, a safety valve assembly is mounted on the accumulator.
Further, the fire-fighting main pipe water supply system comprises a fire-fighting water inlet main pipe, and a fourth gate valve and a second filter are sequentially arranged on the fire-fighting water inlet main pipe.
Furthermore, the plant fire-fighting water main and other nearby fire-fighting water supply pipelines are connected into the fire-fighting water inlet main pipe through respective branch water inlet pipelines, and a fifth gate valve, a first electric valve, a water flow indicator, a third filter and a second pressure transmitter are sequentially arranged on the branch water inlet pipelines.
Furthermore, a sixth gate valve is arranged on the water outlet pipeline.
Furthermore, the general water supply line of the valve bank system is connected to the valve of the rain valve through the branch water supply line of the valve bank system, and the branch water supply line of the valve bank system is sequentially provided with a first ball valve, a first electromagnetic valve and a second check valve.
The utility model has the advantages that: the fire water supply system acting on the deluge valve differential pressure chamber performs pressurization and pressure stabilization, ensures that the pressure acting on the deluge valve differential pressure chamber is higher than the pressure in the deluge valve pipeline at the other side, keeps the pressure in a normal working range, and prevents misoperation due to pressure fluctuation of the fire water supply system.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is an enlarged view of a portion B of FIG. 1;
FIG. 4 is a schematic view of an accumulator installation;
FIG. 5 is a top view of the accumulator installation;
in the figure: 1. a pressure stabilizing pump, 2, a pressure stabilizing water supply pipeline, 2.1, a first pipe section, 2.1.1, a first check valve, 2.1.2, a first gate valve, 2.1.3, a rubber soft joint, 2.2, a second pipe section, 2.2.1, a second gate valve, 2.2.2, a first pressure transmitter, 2.2.3, a first safety valve, 2.2.4, a third gate valve, 3, an energy accumulator, 3.1, a safety valve component, 4, a water outlet pipeline, 4.1, a sixth gate valve, 5, a main water supply line of a deluge valve set system, 6, a fire water inlet main pipe, 6.1, a fourth gate valve, 6.2, a second filter, 7, a factory fire water main pipe, 8, other nearby fire water supply pipelines, 9, a branch water inlet pipeline, 9.1, a fifth gate valve, 9.2, a first valve set, 9.3, a water flow indicator, 9.4, a third filter, 9.5, a second pressure transmitter, a branch water supply pipeline, a second valve, a second solenoid valve, a third valve, a fourth, 11. deluge valve, 12, channel-section steel base.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
A pressure-stabilizing water supply system is characterized in that a fire-fighting main pipe water supply system is connected with an inlet of a pressure-stabilizing pump 1, an outlet of the pressure-stabilizing pump 1 is connected to an energy accumulator 3 through a pressure-stabilizing water supply pipeline 2, and the pressure-stabilizing water supply pipeline 2 is connected to a main water supply line 5 of a deluge valve group system through a water outlet pipeline 4.
Further, the pressure stabilizing water supply pipeline 2 comprises a first pipe section 2.1 and a second pipe section 2.2, an outlet of the pressure stabilizing pump 1 is connected to the second pipe section 2.2 through the first pipe section 2.1, the second pipe section 2.2 is connected to the energy accumulator 3, and the second pipe section 2.2 is connected to a main water supply line 5 of the valve bank system through a water outlet pipeline 4.
Furthermore, the pressure stabilizing pumps 1 are arranged in two, first pipe sections 2.1 connected with the pressure stabilizing pumps 1 are arranged in parallel, and the two first pipe sections 2.1 are connected to the energy accumulator 3 through the same second pipe section 2.2.
Furthermore, a first check valve 2.1.1 and a first gate valve 2.1.2 are sequentially arranged on the first pipe section 2.1, a second gate valve 2.2.1, a first pressure transmitter 2.2.2 and a first safety valve 2.2.3 are sequentially arranged on the upstream of the water outlet pipeline on the second pipe section 2.2, and a third gate valve 2.2.4 is arranged at the position, close to the energy accumulator 3, of the second pipe section 2.2.
Further, a safety valve assembly 3.1 is mounted on the accumulator 3.
Further, the main pipe water supply system of fire control includes that fire water advances female pipe 6, sets gradually fourth gate valve 6.1 and second filter 6.2 on the main pipe 6 of fire water inlet.
Further, the plant fire main water pipe 7 and other nearby fire water supply pipes 8 are connected to the fire water inlet main pipe 6 through respective branch water inlet pipelines 9, and a fifth gate valve 9.1, a first electric valve 9.2, a water flow indicator 9.3, a third filter 9.4 and a second pressure transmitter 9.5 are sequentially arranged on the branch water inlet pipelines 9.
Furthermore, a sixth gate valve 4.1 is arranged on the water outlet pipeline 4.
Further, the rain valve group system main water supply line 5 is connected to the rain valve 11 through the rain valve group system branch water supply line 10, and the rain valve group system branch water supply line 10 is sequentially provided with a first ball valve 10.1, a first electromagnetic valve 10.2 and a second check valve 10.3.
As shown in fig. 1 and 2, in the embodiment, the deluge valve system at the coal bunker bay and the 39 m layer is modified into a single water supply system with pressure stabilization and system addition, so that the influence of pressure fluctuation on the opening of the valve body is reduced. The original water inlet mode of the deluge valve differential pressure chamber is changed, water inlet from the original main pipe is eliminated, all deluge valve differential pressure chambers are supplied with water to form a system, and water is supplied by a newly-added pressurization and pressure stabilization system, so that the purposes of pressurization and pressure stabilization of the differential pressure chambers are achieved.
It should be noted that the normal working pressure of the new pressure stabilizing and pressurizing device for fire water is not less than 1.5MPA, the fire water can be automatically started, stopped and displayed, the outlet pressure can be manually adjusted, and the fire water can be linked to start, stop and display the operation condition according to the control requirement of the system. As shown in fig. 1 and 2, two pressure stabilizing pumps 1 of the pressure stabilizing and boosting system are mutually equipped, and are automatically started, stopped and displayed to ensure that the system pressure stably works within a designed value range. The pressure stabilizing and increasing system is provided with an energy accumulator 3 to ensure the relatively stable pressure of the pressure stabilizing system, and the energy accumulator 3 is a pressure container and is also provided with a safety valve, a local display pressure gauge and other equipment.
Further optimization, the voltage stabilizing and boosting system can be controlled by a PLC. The start, stop and operation conditions of the pressure pump of the pressure stabilizing and boosting system are uploaded to a fire alarm control system and a main control DCS (distributed control System) for monitoring, a start and stop control box is arranged on site, and linkage can be realized. When the deluge valve is connected to the linkage command of the fire alarm system and is opened, the water inlet of the pressure stabilizing system of the deluge valve which is opened is cut off (the action signal of the electromagnetic valve is taken from the water discharge electromagnetic valve of the fire system) and the pressure stabilizing and boosting system stops supplying water. Meanwhile, the pressure stabilizing and boosting system cannot cause pressure fluctuation due to the fact that one deluge valve is opened, and normal work of other deluge valves of the system is influenced.
The energy accumulator 3 is used as energy storage equipment, the volume of the energy accumulator is more than 1 cubic meter, and the volume of the bag is 350L-450L; the energy accumulator 3 is also provided with a plurality of valves, a pressure gauge, a safety valve and other equipment, and the configuration and the effective pressure regulating range of the energy accumulator 3 completely meet the requirements of a fire-fighting water system. The pressure stabilizing system is additionally provided with a first electromagnetic valve 10.2 near the deluge valve. The first electromagnetic valve 10.2 is connected with the control system and plays a role in controlling the start and stop of the pressure stabilizing system.
The pressure stabilizing pump 1 is a vertical multistage centrifugal pump made of stainless steel of China German co-funded brand. The two pressure stabilizing pumps 1 are used as a main pump and a standby pump and are exchanged, so that the operation is stable and reliable. The pressure stabilizing and boosting system water taking source adopts a design scheme of taking water in two ways, one way of water is taken from a factory fire water main pipe 7, the other way of water is taken from other nearby fire water supply pipelines 8, and a filter, a gate valve, a water flow indicator and other equipment are respectively installed. The water supply of a single pipeline is prevented, and the system can not work due to water loss.
The voltage stabilizing system electric control part: the pressure stabilizing system controls the case on spot: the white steel material is selected, and is waterproof, dustproof and explosion-proof. And a touch display screen is embedded on the box body door of the local control box, and a configuration picture is programmed. The PLC controller is Siemens. The box door is provided with: start, stop, toggle, etc. Two sets of pressure transmitters are selected, one is used for displaying the pressure of the pipeline at the water inlet side, the other is used for displaying the pressure on the pipeline at the water outlet side of the water pump, the start and stop of the pressure stabilizing pump are controlled, and meanwhile, the pressure can be checked. The pressure stabilizing system controls the case on spot: the pressure stabilizing pump can be manually started, stopped and switched on and off. And the running state of the pressure stabilizing pump, the system pressure and the like are sent to the DCS through the PLC, and the system pressure and the like are used for monitoring, starting and stopping the pressure stabilizing system by operating personnel. The states of the electromagnetic valves of the deluge valves in operation can be displayed, and the electromagnetic valves can be manually opened and closed in place.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A pressure-stabilizing water supply system is characterized in that: the fire-fighting main pipe water supply system is connected with an inlet of the pressure stabilizing pump, an outlet of the pressure stabilizing pump is connected to the energy accumulator through a pressure stabilizing water supply pipeline, and the pressure stabilizing water supply pipeline is connected to a main water supply line of the deluge valve group system through a water outlet pipeline.
2. A pressure stabilized water supply system according to claim 1, wherein: the pressure stabilizing water supply pipeline comprises a first pipe section and a second pipe section, the outlet of the pressure stabilizing pump is connected to the second pipe section through the first pipe section, the second pipe section is connected to the energy accumulator, and the second pipe section is connected to the main water supply line of the valve bank system through the water outlet pipeline.
3. A pressure stabilized water supply system according to claim 1, wherein: the pressure stabilizing pumps are arranged in two, first pipe sections connected with the pressure stabilizing pumps are connected in parallel, and the two first pipe sections are connected to the energy accumulator through the same second pipe section.
4. A pressure stabilized water supply system according to claim 3, wherein: the first pipe section is sequentially provided with a first check valve and a first gate valve, the upstream of the water outlet pipeline on the second pipe section is sequentially provided with a second gate valve, a first pressure transmitter and a first safety valve, and the second pipe section is provided with a third gate valve at a position close to the energy accumulator.
5. A pressure stabilised water supply system according to any one of claims 1 to 4, wherein: and a safety valve assembly is arranged on the energy accumulator.
6. A pressure stabilised water supply system according to any one of claims 1 to 4, wherein: the fire-fighting main pipe water supply system comprises a fire-fighting water inlet main pipe, and a fourth gate valve and a second filter are sequentially arranged on the fire-fighting water inlet main pipe.
7. A pressure stabilised water supply system according to claim 6, in which: the plant area fire-fighting water main pipe is connected into the fire-fighting water inlet main pipe through a branch water inlet pipeline, and a fifth gate valve, a first electric valve, a water flow indicator, a third filter and a second pressure transmitter are sequentially arranged on the branch water inlet pipeline.
8. A pressure stabilised water supply system according to claim 1 to 4 or 7, wherein: and a sixth gate valve is arranged on the water outlet pipeline.
9. A pressure stabilised water supply system according to claim 1 to 4 or 7, wherein: the rain valve group system main water supply line is connected to the rain valve through the rain valve group system branch water supply line, and the rain valve group system branch water supply line is sequentially provided with a first ball valve, a first electromagnetic valve and a second check valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120933844.7U CN215166051U (en) | 2021-05-01 | 2021-05-01 | Pressure-stabilizing water supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120933844.7U CN215166051U (en) | 2021-05-01 | 2021-05-01 | Pressure-stabilizing water supply system |
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| CN215166051U true CN215166051U (en) | 2021-12-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114652990A (en) * | 2022-03-04 | 2022-06-24 | 华能核能技术研究院有限公司 | Deluge valve group controlled by electromagnetic valve |
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2021
- 2021-05-01 CN CN202120933844.7U patent/CN215166051U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114652990A (en) * | 2022-03-04 | 2022-06-24 | 华能核能技术研究院有限公司 | Deluge valve group controlled by electromagnetic valve |
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