CN111272404A - Fire truck fire pipeline test system - Google Patents

Abstract

The utility model provides a fire engine fire control pipeline test system, include: the external pipeline is used for supplying water to a fire pipeline of the fire engine; the first water supply pump group comprises a first water supply pump, a first water outlet pipeline and a first water inlet pipeline, wherein two ends of the first water outlet pipeline are respectively connected between a water outlet of the first water supply pump and an external pipeline, and a first control valve for controlling the on-off of the pipeline is arranged on the first water outlet pipeline; the second water supply pump group comprises a second water supply pump, a second water outlet pipeline and a second water inlet pipeline, wherein two ends of the second water outlet pipeline are connected between a water outlet of the second water supply pump and the external pipeline, and a second control valve for controlling the on-off of the pipeline is arranged on the second water inlet pipeline; and one end of the middle pipeline is connected with the part of the first water outlet pipeline, which is positioned between the first control valve and the first water supply pump, while the other end of the middle pipeline is connected with the part of the second water inlet pipeline, which is positioned between the second control valve and the second water supply pump, and the middle pipeline is provided with a third control valve for controlling the on-off of the pipeline.

Description

Fire truck fire pipeline test system

technical field

The invention relates to a test system, in particular to a fire-fighting pipeline test system of a fire truck.

Background technique

Fire trucks are mobile firefighting technical equipment for firefighting, auxiliary firefighting or fire rescue. The fire trucks that use water as the fire extinguishing agent include high-flow tankers and lift-type fire trucks. In the test of the fire pipeline of the fire truck, it is necessary to test the flow rate and water supply pressure of the fire truck. For example, the calibration test of the fire monitor of the fire truck needs to test the water supply pressure required by the fire monitor of the fire truck when it works at the rated flow. At this time, the fire truck fire pipeline test system needs to meet the rated flow and water supply pressure test requirements of the fire monitor. The fire fighting pipeline requirements of different types of fire trucks are quite different. For example, the rated flow of the fire monitor of a conventional large-flow tanker and the required system water supply pressure are about 170L/s and 1.2MPa. The rated flow of the gun and the required system water supply pressure are about 100L/s, 2.2MPa. If the fire truck fire pipeline test system uses a water supply pump group to meet the test requirements of different types of fire trucks, it needs to meet the limit values of the fire monitors of different types of fire trucks, such as for lifting fire trucks and large-flow tankers. If the test system of the fire monitor test adopts a water supply pump group, the water supply pump needs to meet the fluid working output of at least 170L/s and 2.2MPa. It is large, the structure is bulky, and the cost is high.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a fire fighting pipeline test system of a fire truck, which can reduce the required power and structural volume of a single water supply pump.

The invention discloses a fire fighting pipeline test system of a fire truck, comprising:

The external pipeline is connected with the fire fighting pipeline of the fire truck during the test to supply water to the fire fighting pipeline of the fire truck;

The first water supply pump group includes a first water supply pump, a first water outlet pipe and a first water inlet pipe connected to a water source for supplying water to the first water supply pump, the first water inlet pipe is connected to the first water supply pipe The water inlet of the water supply pump is connected, the two ends of the first water outlet pipe are respectively connected between the water outlet of the first water supply pump and the external pipe, and the first water outlet pipe is provided with a control device for controlling the first water outlet pipe. A first control valve for on-off of the water outlet pipe;

The second water supply pump group includes a second water supply pump, a second water outlet pipe, and a second water inlet pipe connected to a water source for supplying water to the second water supply pump, and the second water inlet pipe is connected to the second water supply pipe. The water inlet of the water supply pump is connected, the two ends of the second water outlet pipeline are connected between the water outlet of the second water supply pump and the external pipeline, and the second water inlet The second control valve for the on-off of the second water inlet pipeline;

an intermediate pipe, one end of the intermediate pipe is connected with the part of the first water outlet pipe located between the first control valve and the first water supply pump, and the other end of the intermediate pipe is located in the second water inlet pipe Part of the connection between the second control valve and the second water supply pump, the intermediate pipeline is provided with a third control valve for controlling the on-off of the intermediate pipeline.

In some embodiments, the rated flow and rated pressure of the first and second water supply pumps are the same.

In some embodiments, the rated flow and rated pressure of the first and second water supply pumps are respectively 100 L/s and in some embodiments, at least one of the first and second water supply pumps is Inverter motor drive connection.

In some embodiments, the first water outlet pipe is provided with a first check valve, and the first check valve is provided between the intermediate pipe and the first water supply pump; and/or, the A second check valve is arranged on the second outlet pipe.

In some embodiments, the first water supply pump group further includes a first water discharge valve for discharging water for the first water supply pump, the first water discharge valve is connected to the water inlet of the first water supply pump, and /Or, the second water supply pump group further includes a second water discharge valve for discharging water for the second water supply pump, and the second water discharge valve is connected to the water inlet of the second water supply pump.

In some embodiments, the first drain valve and the second drain valve are ball valves.

In some embodiments, both the outlet of the first water supply pump and the outlet of the second water supply pump are provided with pressure gauges.

Based on the fire-fighting pipeline test system for fire trucks provided by the present invention, by setting up multiple water supply pump groups and the connection of corresponding pipelines and control valves, the series and parallel working modes between the supply pump groups are realized, which can be adapted to the test of various fire trucks. At the same time, the required power and volume of a single water supply pump can be reduced, and the fire pipeline test system can reduce the required power and structural volume of the water supply pump.

Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings.

Description of drawings

The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

FIG. 1 is a schematic structural diagram of a fire fighting pipeline test system for a fire truck according to an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the invention unless specifically stated otherwise. Meanwhile, it should be understood that, for the convenience of description, the dimensions of various parts shown in the accompanying drawings are not drawn in an actual proportional relationship. Techniques, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the authorized description. In all examples shown and discussed herein, any specific value should be construed as illustrative only and not as limiting. Accordingly, other examples of exemplary embodiments may have different values. It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further discussion in subsequent figures.

For ease of description, spatially relative terms, such as "on", "over", "on the surface", "above", etc., may be used herein to describe what is shown in the figures. The spatial positional relationship of one device or feature shown to other devices or features. It should be understood that spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or features would then be oriented "below" or "over" the other devices or features under other devices or constructions". Thus, the exemplary term "above" can encompass both an orientation of "above" and "below." The device may also be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

As shown in FIG. 1 , the fire fighting pipeline test system of the fire truck in this embodiment includes an external pipeline 6 , a first water supply pump group, a second water supply pump group and an intermediate pipeline 121 .

The external pipeline 6 is connected to the fire fighting pipeline of the fire truck during the test, and is used to supply water to the fire fighting pipeline of the fire truck. The external pipeline 6 includes a pipeline and a valve on the pipeline, an interface connected to the fire fighting pipeline of the fire truck, etc. For example, as shown in FIG. 1 , the external pipeline 6 includes a valve interface 61 connected to the fire monitor of the fire truck.

The first water supply pump group includes a first water supply pump 1 , a first water outlet pipeline 12 and a first water supply pipeline 11 connected to a water source for supplying water to the first water supply pump 1 . The first water supply pipeline 11 is connected to the first water supply pump. The water inlet of 1 is connected, the two ends of the first water outlet pipe 12 are respectively connected between the water outlet of the first water supply pump 1 and the external pipe 6, and the first water outlet pipe 12 is provided with a control device for controlling the on-off of the first water outlet pipe 12. The first control valve 31 .

The second water supply pump group includes a second water supply pump 2 , a second water outlet pipe 22 and a second water inlet pipe 21 connected to a water source for supplying water to the second water supply pump 2 . The second water inlet pipe 21 is connected to the second water supply pump 2 is connected to the water inlet of the second water outlet pipe 22, the two ends of the second water outlet pipe 22 are connected between the water outlet of the second water supply pump 2 and the external pipe 6, and the second water inlet pipe 21 is provided with a connection for controlling the second water inlet pipe 21. the second control valve 32 .

The first water supply pump 1 and the second water supply pump 2 are hydraulic pumps, such as vacuum hydraulic pumps, variable displacement hydraulic pumps, etc. During the fire-fighting pipeline test of the fire truck, they pump water for the fire-fighting pipeline. The two water inlet pipes 21 are used to supply water to the first water supply pump 1 and the second water supply pump 2 respectively. The first water inlet pipe 11 , the second water inlet pipe 21 , the first water outlet pipe 12 and the second water outlet pipe 22 include The pipeline through which the liquid flows may also include valves, instruments, etc. arranged on the pipeline. The first control valve 31 and the second control valve 32 are used to control the on-off of the pipeline where they are located, and the first control valve 31 and the second control valve 32 may be on-off valves, throttle valves and other valves with on-off functions. When the first control valve 31 is open, the first water supply pump 1 directly supplies water to the external pipeline, and when the first control valve 31 is closed, the first water supply pump 1 supplies water to the external pipeline through other water supply pumps. When the second control valve 32 is open, the second water supply pump 2 pumps water directly from the water source, and when the second control valve 32 is closed, the pipeline between the second water supply pump 2 and the water source is disconnected.

One end of the intermediate pipe 121 is connected to the part of the first outlet pipe 12 between the first control valve 31 and the first water supply pump 1, and the other end of the intermediate pipe 121 is connected to the second water inlet pipe 21 between the second control valve 32 and the second water supply pump Part of the connection between 2, the intermediate pipe 121 is provided with a third control valve 33 for controlling the on-off of the intermediate pipe 121. The third control valve 33, like the first control valve 31 and the second control valve 32, is also a valve with an on-off function.

The fire truck fire pipeline test system of this embodiment has a series mode and a parallel mode. In the parallel mode, in the embodiment shown in FIG. 1 , the first control valve 31 and the second control valve 32 are opened, and the third control valve 33 Turn off, the first water supply pump 1 and the second water supply pump 2 are connected in parallel, and the first water supply pump 1 and the second water supply pump 2 are independently pumping water from the water source and sending water to the external pipeline. At this time, the test system is in the low-pressure high-flow water supply mode , It is suitable for testing the fire pipelines of fire trucks with low pressure and high flow, such as fire monitors for large-flow tankers. In the series mode, the first control valve 31 and the second control valve 32 are closed, the third control valve 33 is opened, the first water supply pump 1 and the second water supply pump 2 are connected in series, and the first water supply pump 1 pumps water from the water source and passes through the middle The pipeline 121 pumps water to the second water supply pump 1, and the second water supply pump 2 re-pressurizes the water sent by the first water supply pump 1 and then pumps it out to the external pipeline. At this time, the test system is in the high-pressure and low-flow water supply mode, which is suitable for the fire-fighting pipeline test of high-pressure and low-flow fire trucks such as the fire monitor of the fire truck.

In addition, the test system of this embodiment is not limited to only two water supply pump groups, the first water supply pump group and the second water supply pump group, and multiple water supply pump groups such as the third water supply pump group and the fourth water supply pump group can also be provided. For example, a third water supply pump group can be set to include a third water supply pump, and the third water supply pump group has a third water inlet pipeline connected to a water source for supplying water to the third water supply pump, and a water outlet connected to an external pipeline and the third water supply pump The connected third water outlet pipe, the third water inlet pipe is provided with a fourth control valve for controlling the on-off of the pipe, and the second water outlet pipe 22 connected with the water outlet of the second water supply pump 2 is provided with a control valve for controlling the on-off of the pipe. The fifth control valve, the part between the fifth control valve of the second water outlet pipe 22 and the second water supply pump is connected to the water inlet of the third water supply pump through the second intermediate pipe 121, and the second intermediate pipe 121 is provided with a sixth control valve. Control valve. By setting the on-off of the first control valve to the sixth control valve, the first water supply pump group, the second water supply pump group and the third water supply pump group can be set to supply water in series or in parallel.

The fire-fighting pipeline test system of the fire truck in this embodiment realizes the series and parallel working modes between the water supply pump sets by setting up multiple water supply pump sets and the connection of the corresponding pipelines and control valves, which can adapt to the test requirements of various fire trucks At the same time, it can reduce the power and size of a single water supply pump required, and at the same time, it can reduce the power and size requirements of the auxiliary equipment matching the fire pipeline test system, such as the motor used to drive the water supply pump.

In some embodiments, the rated flow and rated pressure of the first water supply pump 1 and the second water supply pump 2 are the same. This setting can make the system work more stable and reliable when switching between series mode and parallel mode.

In some embodiments, the rated flow and rated pressure of the first water supply pump 1 and the second water supply pump 2 are 100 L/s and 1.2 MPa, respectively. This setting is suitable for the test of the fire monitor of the conventional large-flow tanker and the fire monitor of the conventional lift-type fire truck mentioned in the background art section.

In some embodiments, at least one of the first water supply water pump 1 and the second water supply water pump 2 is drivingly connected to a variable frequency motor. This setting can adjust the speed of the water supply pump connected to the drive of the variable frequency motor by adjusting the speed of the variable frequency motor, so that the pressure and flow of the test system can be better adjusted, and the test system can be better matched with the fire fighting pipeline of the fire truck.

In some embodiments, the first water outlet pipe 12 is provided with a first check valve 71 , and the first check valve is provided between the intermediate pipe 121 and the first water supply pump 1 ; and/or, on the second water outlet pipe 22 A second check valve 72 is provided. Setting the first check valve 71 and the second check valve 72 can prevent backflow of fluid, improve the safety and reliability of the first water supply pump 1 and the second water supply pump 2, and improve the stability of the test system.

In some embodiments, the first water supply pump group further includes a first water discharge valve 51 for discharging water for the first water supply pump 1, the first water discharge valve 51 is connected to the water inlet of the first water supply pump 1, and/or, the first water discharge valve 51 is The second water supply pump group also includes a second water discharge valve 52 for discharging water for the second water supply pump 2 , and the second water discharge valve 52 is connected to the water inlet of the second water supply pump 2 . This setting can discharge water to the first water supply pump 1 and the second water supply pump 2 when the test system is not working, reduce the load of the first water supply pump 1 and the second water supply pump 2, and help the first water supply pump 1 and the second water supply pump. Maintenance and maintenance of water pump 2.

In some embodiments, the first water discharge valve 51 and the second water discharge valve 52 are ball valves.

In some embodiments, both the outlet of the first water supply pump 1 and the outlet of the second water supply pump 2 are provided with pressure gauges. For example, the first pressure gauge 41 connected to the water outlet of the first water supply pump 1 and the second pressure gauge 42 connected to the water outlet of the second water supply pump 2 . This setting can monitor the outlet pressure of the first water supply pump 1 and the second water supply pump 2 in real time when the test system is working, monitor the pressure operation of the test system, and improve the reliability of the test system during the test.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand: The specific embodiments of the invention are modified or some technical features are equivalently replaced; without departing from the spirit of the technical solutions of the present invention, all of them should be included in the scope of the technical solutions claimed in the present invention.

Claims (8)

1. The utility model provides a fire engine fire control pipeline test system which characterized in that includes:

the external pipeline (6) is connected with a fire fighting pipeline of the fire fighting truck during testing and is used for supplying water to the fire fighting pipeline of the fire fighting truck;

the first water supply pump group comprises a first water supply pump (1), a first water outlet pipeline (12) and a first water inlet pipeline (11) which is used for supplying water for the first water supply pump (1) and connected with a water source, wherein the first water inlet pipeline (11) is connected with a water inlet of the first water supply pump (1), two ends of the first water outlet pipeline (12) are respectively connected between a water outlet of the first water supply pump (1) and the external pipeline (6), and a first control valve (31) used for controlling the first water outlet pipeline (12) to be switched on and switched off is arranged on the first water outlet pipeline (12);

the second water supply pump group comprises a second water supply pump (2), a second water outlet pipeline (22) and a second water inlet pipeline (21) which is used for supplying water for the second water supply pump (2) and connected with a water source, the second water inlet pipeline (21) is connected with a water inlet of the second water supply pump (2), two ends of the second water outlet pipeline (22) are connected between a water outlet of the second water supply pump (2) and the external pipeline (6), and a second control valve (32) used for controlling the second water inlet pipeline (21) to be switched on and switched off is arranged on the second water inlet pipeline (21);

and one end of the intermediate pipeline (121) is connected with the part of the first water outlet pipeline (12) positioned between the first control valve (31) and the first water supply pump (1), the other end of the intermediate pipeline is connected with the part of the second water inlet pipeline (21) positioned between the second control valve (32) and the second water supply pump (2), and a third control valve (33) for controlling the on-off of the intermediate pipeline (121) is arranged on the intermediate pipeline (121).

2. A fire fighting truck fire fighting pipeline testing system according to claim 1, characterized in that the rated flow and the rated pressure of the first water supply pump (1) and the second water supply pump (2) are the same.

3. A fire fighting truck fire fighting pipeline test system according to claim 2, characterized in that the rated flow rate and the rated pressure of the first water supply pump (1) and the second water supply pump (2) are 100L/s and 1.2MPa, respectively.

4. A fire fighting truck fire fighting pipeline testing system according to claim 1, characterized in that at least one of the first water supply pump (1) and the second water supply pump (2) is drivingly connected to a variable frequency motor.

5. A fire fighting truck fire fighting pipe test system according to claim 1, characterized in that a first check valve (71) is provided on the first water outlet pipe (12), the first check valve (71) being provided between the intermediate pipe (121) and the first water supply pump (1); and/or a second check valve (72) is arranged on the second water outlet pipeline (22).

6. The fire fighting truck fire fighting pipe test system according to claim 2, characterized in that the first water supply pump group further comprises a first water discharge valve (51) for discharging water to the first water supply pump (1), the first water discharge valve (51) being connected to a water inlet of the first water supply pump (1), and/or the second water supply pump group further comprises a second water discharge valve (52) for discharging water to the second water supply pump (2), the second water discharge valve (52) being connected to a water inlet of the second water supply pump (2).

7. A fire fighting truck fire fighting pipeline testing system as defined in claim 6, wherein the first and second water discharge valves (51, 52) are ball valves.

8. A fire fighting truck fire fighting pipe test system according to any one of claims 1 to 7, characterized in that the outlet of the first water supply pump (1) and the outlet of the second water supply pump (2) are each provided with a pressure gauge.

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