CN211024936U - Inspection device for medium-pressure fire pump - Google Patents
Inspection device for medium-pressure fire pump Download PDFInfo
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- CN211024936U CN211024936U CN201921523245.7U CN201921523245U CN211024936U CN 211024936 U CN211024936 U CN 211024936U CN 201921523245 U CN201921523245 U CN 201921523245U CN 211024936 U CN211024936 U CN 211024936U
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Abstract
The utility model relates to a water pump patrols and examines technical field, especially relates to a be used for middling pressure fire pump to patrol and examine device. The fire pump system comprises three-way valves arranged on two sides of a fire pump, the two three-way valves are communicated through a loop detection pipe, a second electromagnetic valve closes a third electromagnetic valve and opens the third electromagnetic valve, so that a circulation loop is formed between the water pump and the loop detection pipe, and the inspection water pressure of the water pump can be adjusted by adjusting a manual control valve, so that the normal working state of the fire pump can be completely simulated; the second electromagnetic valve is closed, the fire pump starts to work, when the electronic water pressure meter reaches a certain pressure, the water pump stops working, meanwhile, the first electromagnetic valve is closed, standing and pressure maintaining are carried out for five minutes, and whether water leakage exists at the position of the fire pump or not can be judged according to the numerical value range of the electronic water pressure meter.
Description
Technical Field
The utility model relates to a water pump patrols and examines technical field, especially relates to a be used for middling pressure fire pump to patrol and examine device.
Background
The automatic inspection device for the fire pump comprises a main loop inspection part and a fire equipment non-pressure inspection part, can finish low-frequency automatic inspection of a main control loop and the water pump, and does not pressurize a system during inspection. The intelligent inspection controller outputs inspection instructions to inspect the main loop contactors one by one, and the time allowable value of the feedback signal is not more than 2S. After the main loop is patrolled and examined and accomplished, it can take place next and patrol and examine instruction to the non-pressure inspection device to patrol and examine the controller, and the device receives and patrols and examines and can carry out the low-speed non-pressure to the fire pump in proper order after the instruction and patrol and examine. When in inspection, the rotating speed of the motor is low, and the system does not generate water pressure.
Because the fire pump is in a medium-pressure or high-pressure state when working normally, the normal working water pressure of the fire pump cannot be completely simulated by the non-pressure inspection; after the water pump is placed for a long time, water leakage may occur under a medium-pressure or high-pressure state due to aging or rusting of local connecting parts, and the inspection system does not have a pressure maintaining detection function, so that certain potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a patrol inspection device for a medium-pressure fire pump aiming at the technical defects, which is characterized in that three-way joints are arranged on two sides of the fire pump, the two three-way joints are communicated through a loop detection pipe, a second electromagnetic valve closes a third electromagnetic valve and is opened, so that a circulation loop is formed between the water pump and the loop detection pipe, the patrol inspection water pressure of the water pump can be adjusted by adjusting a manual control valve, and the normal working state of the fire pump can be completely simulated; the second electromagnetic valve is closed, the fire pump starts to work, when the electronic water pressure meter reaches a certain pressure, the water pump stops working, meanwhile, the first electromagnetic valve is closed, standing and pressure maintaining are carried out for five minutes, and whether water leakage exists at the position of the fire pump or not can be judged according to the numerical value range of the electronic water pressure meter.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the system comprises an inspection cabinet, a fire pump and a loop detection pipe; the inspection cabinet is arranged on one side of the fire pump; an inlet tee joint is connected to the inlet position of the left end of the fire pump through a flange; the left end of the inlet tee joint is connected with a water inlet pipe; the other end of the inlet tee joint is provided with a first elbow; an outlet tee joint is connected to the outlet position of the fire-fighting water pump through a flange; the right end of the outlet tee joint is connected with a water outlet pipe; and a second elbow is arranged at the other end of the outlet tee joint.
Further optimizing the technical scheme, the other end of the first elbow is communicated with the other end of the second elbow through a loop detection pipe.
Further optimize this technical scheme, inlet tube and import tee bend hookup location be provided with first solenoid valve.
Further optimize this technical scheme, outlet pipe and export tee bend hookup location be provided with the second solenoid valve.
Further optimizes the technical proposal, and the inlet tee joint is provided with an electronic water pressure gauge.
Further optimizing the technical scheme, the loop detection pipe is provided with a manual control valve.
Further optimizing the technical scheme, a third electromagnetic valve is arranged on one side of the manual control valve on the loop detection pipe.
According to the technical scheme, the first electromagnetic valve, the second electromagnetic valve, the third electromagnetic valve, the electronic water pressure meter and the fire pump are respectively connected with electrical components inside the inspection cabinet through cables; the first electromagnetic valve and the second electromagnetic valve are normally open electromagnetic valves; the third electromagnetic valve is a normally closed electromagnetic valve.
Compared with the prior art, the utility model has the advantages of it is following:
1. tee joints are arranged on two sides of the fire pump, the two tee joints are communicated through a loop detection pipe, a second electromagnetic valve closes a third electromagnetic valve and is opened, and therefore a circulation loop is formed between the water pump and the loop detection pipe.
2. The water flow direction is water inlet pipe → first electromagnetic valve → inlet tee → fire pump → outlet tee → second elbow → loop detection pipe (third electromagnetic valve and manual control valve) → first elbow → inlet tee.
3. But through adjusting the water pressure of patrolling and examining of manual control valve adjustable water pump, can simulate the normal operating condition of fire pump completely, solved the tradition system of patrolling and examining and carry out the low-speed non-pressure to the fire pump and patrol and examine, motor speed is lower when patrolling and examining, and the system does not produce water pressure, and there is certain difference with the normal work of fire pump reality to the non-pressure is patrolled and examined and is had the problem that can not simulate the normal work water pressure of fire pump completely.
4. The second solenoid valve is closed, the fire pump begins work, when the electronic water pressure gauge reachs certain pressure, the water pump stop work, first solenoid valve is closed simultaneously, the pressurize of stewing is five minutes, can judge whether there is the phenomenon of leaking at the fire pump position according to numerical value range around the electronic water pressure gauge, after having solved the long-time water pump of placing, because of local adapting unit ageing or rust, the phenomenon of leaking probably appears under middling pressure or high-pressure state, the system of patrolling and examining does not possess the pressurize and detects the function to there is the problem of certain potential safety hazard.
5. The whole inspection system can completely simulate the normal working state of the fire fighting pump, and the safety coefficient is high.
6. First solenoid valve and second solenoid valve are normally open solenoid valve, and the third solenoid valve is normally closed solenoid valve, if when arbitrary solenoid valve broke down, can guarantee that the fire pump still can normally start the use.
Drawings
Fig. 1 is a schematic view of the overall installation state of an inspection device for a medium-pressure fire pump.
Fig. 2 is a schematic diagram of the distribution of the fire pump inspection pipeline for the medium-pressure fire pump inspection device.
In the figure: 1. a routing inspection cabinet; 2. a fire pump; 201. an inlet tee joint; 202. a water inlet pipe; 203. a first elbow; 204. an outlet tee joint; 205. a water outlet pipe; 206. a second elbow; 3. a loop detection tube; 4. a first solenoid valve; 5. a second solenoid valve; 6. an electronic water pressure gauge; 7. a manual control valve; 8. and a third solenoid valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The first embodiment is as follows: combine shown in fig. 1-2, a be used for medium pressure fire pump inspection device its characterized in that: the system comprises an inspection cabinet 1, a fire pump 2 and a loop detection pipe 3; the inspection cabinet 1 is arranged on one side of the fire pump 2; an inlet tee joint 201 is connected to the inlet position at the left end of the fire pump 2 through a flange; the left end of the inlet tee joint 201 is connected with a water inlet pipe 202; the other end of the inlet tee 201 is provided with a first elbow 203; an outlet tee joint 204 is connected to the position of the outlet of the fire pump 2 through a flange; the right end of the outlet tee 204 is connected with a water outlet pipe 205; the other end of the outlet tee 204 is provided with a second elbow 206; the other end of the first elbow 203 is communicated with the other end of the second elbow 206 through a loop detection pipe 3; a first electromagnetic valve 4 is arranged at the connecting position of the water inlet pipe 202 and the inlet tee joint 201; a second electromagnetic valve 5 is arranged at the connecting position of the water outlet pipe 205 and the outlet tee 204; an electronic water pressure gauge 6 is arranged on the inlet tee joint 201; a manual control valve 7 is arranged on the loop detection pipe 3; a third electromagnetic valve 8 is arranged on the loop detection pipe 3 on one side of the manual control valve 7; the first electromagnetic valve 4, the second electromagnetic valve 5, the third electromagnetic valve 8, the electronic water pressure meter 6 and the fire pump 2 are respectively connected with electrical components inside the inspection cabinet 1 through cables; the first electromagnetic valve 4 and the second electromagnetic valve 5 are normally open electromagnetic valves; the third electromagnetic valve 8 is a normally closed electromagnetic valve.
When the inspection device is used, in the first step, as shown in the combined drawing of fig. 1-2, the inspection period is 24 hours, the inspection time of a single pump is 10 minutes for each inspection, and the inspection period and the inspection time can be adjusted from several minutes to several days according to actual requirements. When fire control takes place, can automatic instantaneous stop patrolling and examining after programmable controller received the fire control order, start the fire pump, fire control finishes manual shutdown.
When the normal water pressure working state of the fire water pump 2 is simulated, the second electromagnetic valve 5 is closed, the water outlet position of the fire water pump 2 is closed at the moment, the second electromagnetic valve 5 is opened, the fire water pump 2 starts to work, the fire water pump 2 works to pump out water in the water tank, and the water flow direction is that the water inlet pipe 202 → the first electromagnetic valve 4 → the inlet tee 201 → the fire water pump 2 → the outlet tee 204 → the second elbow 206 → the loop detection pipe 3 (the third electromagnetic valve 8 and the manual control valve 7) → the first elbow 203 → the inlet tee 201, so that a circulation loop is formed among the inlet tee 201, the outlet tee 204, the second elbow 206, the loop detection pipe 3 and the first elbow 203.
Because the manual control valve 7' is arranged on the loop detection pipe 3, the initial state of the manual control valve 7 is a semi-closed state, and a certain resistance can be generated for the water flow in the loop detection pipe 3, so that under the action of the resistance, the outlet tee 204 at the right side of the fire pump 2, the second elbow 206 and the loop detection pipe 3 at the right side of the manual control valve 7 generate a certain water pressure which is the water pressure for the normal work of the fire pump 2, so that the tee joints are arranged at the two sides of the fire pump 2 and are communicated with each other through the loop detection pipe 3, the second electromagnetic valve 5 closes the third electromagnetic valve 8 and is opened, so that a circulation loop is formed between the pump and the loop detection pipe 3, the routing inspection water pressure of the pump can be adjusted through adjusting the manual control valve 7, the normal working state of the fire pump can be completely simulated, and the problem that the conventional routing, when patrolling and examining, motor speed is lower, and the system does not produce water pressure, exists certain difference with fire pump reality normal work to the problem that the normal work water pressure of fire pump can not be simulated completely to the non-pressure is patrolled and examined and is existed.
Through adjusting the degree of opening and shutting of manual control valve 7, can freely adjust the simulation water pressure of fire pump 2, be applicable to the hydraulic simulation of fire pump 2 of different models and patrol and examine work, the commonality of whole setting is stronger.
Step two, as shown in the figure 1-2, when detecting whether water leaks between the connecting parts of the fire pump 2, adopting pressure maintaining detection pressure difference to judge whether water leaks, when detecting, closing the second electromagnetic valve 5, opening the first electromagnetic valve 4 and the third electromagnetic valve 8, simultaneously starting the fire pump 2 to work, when the fire pump 2 works, starting water inflow from the position of the water inlet pipe 202, when the water pressure in the pipeline reaches a certain pressure, automatically closing the first electromagnetic valve 4, closing the positions of the water inlet pipe 202 and the water outlet pipe 205 of the fire pump 2, standing for five minutes, judging whether water leakage exists at the position of the fire pump according to the front and back numerical value amplitude of the electronic water pressure meter 6, if the water pressure amplitude exceeds a certain numerical value, proving that a water leakage place exists, automatically sending an alarm signal by the system, if the water pressure amplitude is within a preset range, the system is in a normal state, and after the water, because of local adapting unit ageing or rust, probably appear leaking under middling pressure or high pressure state, the system of patrolling and examining does not possess the pressurize and detects the function to there is the problem of certain potential safety hazard.
First solenoid valve 4 and second solenoid valve 5 are normally open solenoid valve, and third solenoid valve 8 is normally closed solenoid valve, if when arbitrary solenoid valve broke down, first solenoid valve 4 and second solenoid valve 5 opened, and inlet tube 202 and outlet pipe 205 open, and the third electromagnetism is closed, and return circuit test tube 3 closes, and rivers can normally flow, can guarantee that fire pump 2 still can normally start the use.
The utility model discloses a control mode comes automatic control through the controller, and the control circuit of controller can realize through the simple programming of technical staff in this field, belongs to the common general knowledge in this field, and the utility model discloses mainly be used for protecting mechanical device, so the utility model discloses no longer explain control mode and circuit connection in detail.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (8)
1. The utility model provides a be used for middling pressure fire pump inspection device which characterized in that: comprises an inspection cabinet (1), a fire pump (2) and a loop detection pipe (3); the inspection cabinet (1) is arranged on one side of the fire pump (2); an inlet tee joint (201) is connected to the inlet position of the left end of the fire pump (2) through a flange; the left end of the inlet tee joint (201) is connected with a water inlet pipe (202); the other end of the inlet tee joint (201) is provided with a first elbow (203); an outlet tee joint (204) is connected to the outlet of the fire pump (2) through a flange; the right end of the outlet tee joint (204) is connected with a water outlet pipe (205); and a second elbow (206) is arranged at the other end of the outlet tee joint (204).
2. The inspection device for the medium-pressure fire pumps according to claim 1, characterized in that: the other end of the first elbow (203) is communicated with the other end of the second elbow (206) through a loop detection pipe (3).
3. The inspection device for the medium-pressure fire pumps according to claim 1, characterized in that: and a first electromagnetic valve (4) is arranged at the connecting position of the water inlet pipe (202) and the inlet tee joint (201).
4. The inspection device for the medium-pressure fire pumps according to claim 1, characterized in that: and a second electromagnetic valve (5) is arranged at the connecting position of the water outlet pipe (205) and the outlet tee joint (204).
5. The inspection device for the medium-pressure fire pumps according to claim 1, characterized in that: and an electronic water pressure gauge (6) is arranged on the inlet tee joint (201).
6. The inspection device for the medium-pressure fire pumps according to claim 1, characterized in that: and a manual control valve (7) is arranged on the loop detection pipe (3).
7. The inspection device for the medium-pressure fire pumps according to claim 6, characterized in that: and a third electromagnetic valve (8) is arranged on one side of the manual control valve (7) on the loop detection pipe (3).
8. The inspection device for the medium-pressure fire pumps according to claim 3, characterized in that: the first electromagnetic valve (4), the second electromagnetic valve (5), the third electromagnetic valve (8), the electronic water pressure meter (6) and the fire pump (2) are respectively connected with an electrical component inside the inspection cabinet (1) through cables; the first electromagnetic valve (4) and the second electromagnetic valve (5) are normally open electromagnetic valves; the third electromagnetic valve (8) is a normally closed electromagnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921523245.7U CN211024936U (en) | 2019-09-12 | 2019-09-12 | Inspection device for medium-pressure fire pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921523245.7U CN211024936U (en) | 2019-09-12 | 2019-09-12 | Inspection device for medium-pressure fire pump |
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| Publication Number | Publication Date |
|---|---|
| CN211024936U true CN211024936U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921523245.7U Active CN211024936U (en) | 2019-09-12 | 2019-09-12 | Inspection device for medium-pressure fire pump |
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| CN (1) | CN211024936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114939251A (en) * | 2022-06-14 | 2022-08-26 | 国家电网有限公司 | Multifunctional foam system detection device |
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2019
- 2019-09-12 CN CN201921523245.7U patent/CN211024936U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114939251A (en) * | 2022-06-14 | 2022-08-26 | 国家电网有限公司 | Multifunctional foam system detection device |
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