An intelligent fire sprinkler water distribution test system and its test method

Abstract

The present application discloses an intelligent fire sprinkler water distribution test system, including: a water supply device for providing water for the spray test; a spraying device connected to the water supply device, wherein at least one pipe and at least one sprinkler for spraying the test water are provided in the spraying device; a collection and measurement device arranged directly below the spraying device for collecting and measuring the water distribution performance of the sprinkler; and an intelligent control device connected to the water supply device, the spraying device and the collection and measurement device. The present application also discloses a test method.

Description

Technical Field

[0001] This application belongs to the technical field of fire product testing, and particularly relates to an intelligent fire sprinkler water distribution test system and its test method. Background Art

[0002] In civil and commercial buildings, the fire protection system is one of the main means to ensure people's life and property safety and maintain the integrity of the building. Civil and commercial buildings have complex structures, diverse shapes, a large number of occupants, multiple fire spread paths, and difficult evacuation of personnel. Once a fire occurs, it is likely to cause more serious consequences and it is difficult to implement fire fighting. In the evaluation of the fire protection system, during the existing spray test, when simulating the sprinkler fire extinguishing ability of the fire protection system in civil and commercial buildings, a sprinkler mechanism built with a framework is generally used, and water pipes and spray heads are erected on the sprinkler mechanism to simulate the on-site fire protection system and environment.

[0003] However, the existing technology lacks intelligent measurement means for the water distribution test system, and there is an urgent need for an intelligent fire sprinkler water distribution test system and method. Summary of the Invention

[0004] This application provides an intelligent fire sprinkler water distribution test system, and the intelligent fire sprinkler water distribution test system includes:

[0005] A water supply device for providing spray nozzles;

[0006] A spraying device connected to the water supply device, where at least one pipe and at least one nozzle for spraying the nozzles are provided in the spraying device;

[0007] A collection and measurement device arranged directly below the spraying device for collecting and measuring the water distribution performance of the nozzles; and

[0008] An intelligent control device connected to the water supply device, the spraying device, and the collection and measurement device.

[0009] According to an embodiment of the present application, the water supply device includes: a water tank, a water pumping mechanism, a water return mechanism, and a main output pipeline;

[0010] Wherein, the inlet end of the pump water pipeline in the water pumping mechanism is communicated with the water tank, and a motor pump and an expansion tank are sequentially arranged along the direction of the pump water pipeline of the water pumping mechanism. The water pumping mechanism is used to control the flow rate of the pumped water and the pressure in the pipeline, and the pump water end of the pump water pipeline is communicated with the main output pipeline;

[0011] The inlet end of the return water pipeline in the water return mechanism is communicated with the inlet end of the pump water pipeline and the main output pipeline through a three-way valve; a first solenoid valve and a regulating valve are sequentially arranged along the water return direction of the water return mechanism, and the pump water end of the return water pipeline is communicated with the water tank;

[0012] A second solenoid valve is provided on the total output pipeline.

[0013] According to an embodiment of the present application, the first solenoid valve and the second solenoid valve are respectively electrically connected to the intelligent control device, and the intelligent control device controls the first solenoid valve and the second solenoid valve to be selectively closed or opened at the same time.

[0014] According to an embodiment of the present application, a main valve is further provided on the water outlet pipeline between the water tank and the motor pump; a flow meter is further provided between the expansion tank and the water outlet end of the water outlet pipeline; the main valve and the flow meter are respectively electrically connected to the intelligent control device.

[0015] According to an embodiment of the present application, the system further includes a data collection device, and the data collection device includes:

[0016] A pressure collection device for obtaining the water pressure in the pipeline of the water supply device;

[0017] A nozzle acquisition device for obtaining data of the spraying device;

[0018] Wherein, the data collection device is further connected to the intelligent control device.

[0019] According to an embodiment of the present application, the nozzle acquisition device includes:

[0020] An image acquisition unit for obtaining image data of the nozzle;

[0021] A first recognition unit for obtaining the position data and / or spacing data of the nozzle;

[0022] A second recognition unit for obtaining the model data of the nozzle; and / or

[0023] A third recognition unit for obtaining the quantity data of the nozzles and / or the spray pipelines.

[0024] According to an embodiment of the present application, the collection and measurement device includes: an upper frame assembly, a water tank body, at least one solenoid valve, a weighing inclined water trough, a weighing module, and a base; wherein, the base includes a horizontally arranged cross beam and a vertically arranged frame; the weighing module is fixed to the cross beam, the upper part of the weighing module is connected to the weighing inclined water trough, the upper part of the weighing inclined water trough is open, the open upper part of the weighing inclined water trough is located below the water tank body, and a solenoid valve for controlling drainage is provided at the bottom of the weighing inclined water trough; the edge of the water tank body and the top of the frame of the base are fixed to each other after cooperation, a partition is provided inside the water tank body, the space inside the water tank body is divided into at least two water collection boxes by the partition, a drain port is provided at the bottom of each water collection box, a drain pipe is connected below each drain port, and each of the drain pipes is provided with a solenoid valve for controlling drainage, and the lower part of each drain port faces the open upper part of the weighing inclined water trough; the upper frame assembly and the top edge of the water tank body are matched, and the upper frame assembly has a wedge-shaped knife-like opening structure inclined towards the inside of the water tank body.

[0025] According to an embodiment of the present application, the wedge-shaped knife-like opening structure includes:

[0026] An assembly part connected to the top edge of the water tank body, and the assembly part extends along the top edge of the water tank body;

[0027] A splicing part vertically aligned with the outer edge of the water tank body, and the bottom of the splicing part is connected to the outer edge of the assembly part; and

[0028] A landslide part uniformly inclined from the top of the splicing part towards the inner edge of the assembly part.

[0029] According to an embodiment of the present application, the bottom plate of each water collection box is inclined towards the drain port provided thereon.

[0030] According to an embodiment of the present application, the system further includes a support device for fixing the spraying device; the support device includes: a plurality of support columns for vertically supporting on the test platform and a cross beam for connecting the tops of the support columns; the spraying device is installed on the cross beam.

[0031] According to an embodiment of the present application, a height adjustment device is further provided at the bottom of the support device.

[0032] According to an embodiment of the present application, the cross beam and the spraying device are connected through a lifting device; the lifting device is installed on the cross beam, and the lifting device includes a lifting mechanism that can extend downward from the cross beam; the spraying device is connected to the bottom of the lifting mechanism.

[0033] According to an embodiment of the present application, the lifting mechanism includes: a scissor structure.

[0034] According to an embodiment of the present application, the spraying device further includes: the balancing mechanism, which is installed between the supporting mechanism and the pipeline, and is used to keep the pipeline in a horizontal position;

[0035] According to an embodiment of the present application, the balancing mechanism includes balancing structures having the same number as the pipelines. Each balancing structure includes a pulley and a steel wire rope. The pulley is installed on the body or the top end of the supporting column. The first end of the steel wire rope is connected to the body of the pipeline and the supporting column, and the second end hangs down after passing through the pulley.

[0036] The present application also provides a test method, which uses the intelligent fire sprinkler water distribution test system described above. The test method includes:

[0037] a. The intelligent control device turns on the water supply device, forms a water curtain through the ceiling sprinkler, and the collection and measurement device collects the liquid in the water curtain in the water curtain, and then turns off the water supply device after reaching the specified time;

[0038] b. A data matrix corresponding to each water collection box in the collection and measurement device is configured in the intelligent control device;

[0039] c. The intelligent control device turns on the solenoid valve at the drainage port at the bottom of one water collection box in each collection and measurement device, and the liquid in the water collection box flows into the weighing inclined water tank below;

[0040] d. The intelligent control device turns on the weighing module to weigh the weight of the liquid in the weighing inclined water tank, and the intelligent control device records the weight in the corresponding device of the data matrix;

[0041] e. The intelligent control device turns on the solenoid valve at the drainage port of the weighing inclined water tank to empty the liquid inside the weighing inclined water tank, and the intelligent control device performs a zero adjustment operation on the weighing module;

[0042] f. Repeat steps c to e to weigh the liquid weight in the next water collection box until the liquid in all the water collection boxes in the collection and measurement device is weighed, and a data matrix recording all the weight data is obtained.

[0043] According to an embodiment of the present application, before step a includes:

[0044] Measure the water pressure in the pipeline, and use the nozzle acquisition device to obtain the data of the nozzle;

[0045] Calculate the target flow rate of the nozzle suitable for the current test.

[0046] The beneficial effects of the present application:

[0047] The present application uses a collection and measurement device that is different from the prior art. Compared with a normal ordinary box, the use of a wedge-shaped knife-shaped mouth can reduce most of the splashing water. The wedge-shaped knife-shaped mouth provides an inclined landslide at the top, so when the splashing water drops here, it will flow back into the water collection box along the slope. Because the edge of the wedge-shaped knife-shaped mouth is assembled in a detachable form, the maintenance cost and time can be greatly reduced. Compared with other components, the edge of the wedge-shaped knife-shaped mouth located on the outside will inevitably be damaged during the movement and assembly process, and the wedge-shaped knife-shaped mouth edge of the water collection unit is detachable, so that when only the edge is damaged, the wedge-shaped knife-shaped mouth edge can be removed and repaired separately. Therefore, compared to repairing or replacing the entire water collection unit, such a design can greatly reduce costs and time. The entire conveying and weighing process will be supervised by the intelligent control device, which can control the conveying by controlling the switch of the solenoid valve on the conveying port; and the weighing readings of the weighing box will also be synchronously displayed on the intelligent control device. When the weighing is completed, the active end can control the drainage by controlling the solenoid valve under the weighing box.

[0048] In the system initialization phase of the present application, the water supply device adopts the return water mode to achieve a stable flow pressure state that matches the actual test state, which can minimize the error caused by unstable flow pressure at the beginning of the test; a regulating valve is installed in the return water pipeline, and the adjustable range covers the flow of all test nozzle samples, which can ensure that the return water pressure maintenance state matches the actual test state, so that the water supply device can be well adapted to all test states.

[0049] The present application plays a role in initial setting and adaptive real-time monitoring of the flow rate at the beginning of the spray test and during the test, which realizes the actual reproduction function of the theoretical model as much as possible. While getting rid of manual adjustment, it also improves the precise control of the flow rate during the test.

[0050] The intelligent fire sprinkler water distribution test system and method of the present application provides a function of initial setting and adaptive real-time monitoring of flow rate at the beginning of the spray test and during the test, which realizes the actual reproduction function of the spray theoretical model of the spray system as much as possible, and while getting rid of manual adjustment, it also improves the precise control of flow rate during the spray test. Compared with the existing spray test, it is a more accurate automatic adjustment method. Compared with the prior art, this application proposes for the first time the monitoring of flow rate and water pressure and the regulation of flow rate during the test spray test, which is used to accurately test the spray capacity (water distribution performance) of the fire extinguishing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0052] Figure 1 It is a schematic diagram of the intelligent fire sprinkler water distribution test system of the present application.

[0053] Figure 2 a is the structural diagram of the collection and measurement device, Figure 2 b is the top view of the collection and measurement device.

[0054] Figure 3 It is the explosion diagram of the collection and measurement device.

[0055] Figure 4 It is the schematic diagram of the Forma wheel.

[0056] Figure 5 It is the sectional view of the water tank body.

[0057] Figure 6 It is the schematic diagram of the water supply device.

[0058] Figure 7 It is the top view of the water supply device.

[0059] Figure 8 It is the schematic diagram of the intelligent fire sprinkler water distribution test system in Embodiment 3.

[0060] Figure 9 It is the schematic diagram of the intelligent fire sprinkler water distribution test system in Embodiment 4.

[0061] Figure 10 It is the schematic diagram of the intelligent fire sprinkler water distribution test system in Embodiment 5. Detailed implementation manners

[0062] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0063] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0064] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "coupling", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0065] Exemplary embodiment

[0066] As Figure 1 shown, the present embodiment provides an intelligent fire sprinkler water distribution test system, and the intelligent fire sprinkler water distribution test system includes:

[0067] A water supply device 100 for providing a spray nozzle;

[0068] A spraying device 200 connected to the water supply device 100, and at least one pipe and at least one nozzle for the spraying nozzle are provided in the spraying device;

[0069] A collection and measurement device 400 disposed directly below the spraying device for collecting and measuring the water distribution performance of the nozzle; and

[0070] An intelligent control device 500 connected to the water supply device, the spraying device, and the collection and measurement device.

[0071] In the present exemplary embodiment, the water supply device includes: a water tank, a water pumping mechanism, a water return mechanism, and a main output pipeline;

[0072] Among them, the inlet end of the pump water pipeline in the water pumping mechanism is communicated with the water tank, and a motor pump and an expansion tank are sequentially arranged along the direction of the pump water pipeline of the water pumping mechanism. The water pumping mechanism is used to control the flow rate of the pumped water and the pressure in the pipeline. The water pumping end of the pump water pipeline is communicated with the main output pipeline;

[0073] The water inlet end of the water return pipeline in the water return mechanism is communicated with the water inlet end of the pump water pipeline and the total output pipeline through a three-way valve; a first solenoid valve and a regulating valve are arranged in sequence along the water return direction of the water return mechanism, and the water pumping end of the water return pipeline is communicated with the water tank;

[0074] A second solenoid valve is arranged on the total output pipeline.

[0075] In this exemplary embodiment, the first solenoid valve and the second solenoid valve are respectively electrically connected to the intelligent control device, and the intelligent control device controls the first solenoid valve and the second solenoid valve to be alternately closed or selected at the same time.

[0076] In this exemplary embodiment, a main valve is further arranged on the water outlet pipeline between the water tank and the motor pump; a flow meter is further arranged between the expansion tank and the water outlet end of the water outlet pipeline; the main valve and the flow meter are respectively electrically connected to the intelligent control device.

[0077] In this exemplary embodiment, the system further includes a data collection device, and the data collection device includes:

[0078] A pressure collection device for obtaining the water pressure in the pipeline of the water supply device;

[0079] A nozzle acquisition device for obtaining data of the spraying device;

[0080] Wherein, the data collection device is further connected to the intelligent control device.

[0081] In this exemplary embodiment, the nozzle acquisition device includes:

[0082] An image acquisition unit for acquiring image data of the nozzle;

[0083] A first recognition unit for obtaining the position data and / or spacing data of the nozzle;

[0084] A second recognition unit for obtaining the model data of the nozzle; and / or

[0085] A third recognition unit for obtaining the quantity data of the nozzles and / or the spray pipelines

[0086] In this exemplary embodiment, the collection and measurement device includes: an upper frame assembly, a water tank body, at least one solenoid valve, a weighing inclined water trough, a weighing module, and a base; wherein, the base includes a horizontally arranged cross beam and a vertically arranged frame; the weighing module is fixed to the cross beam, the upper part of the weighing module is connected to the weighing inclined water trough, the upper part of the weighing inclined water trough is open, the open upper part of the weighing inclined water trough is located below the water tank body, and a solenoid valve for controlling drainage is provided at the bottom of the weighing inclined water trough; the edge of the water tank body and the top of the frame of the base are fixed to each other after cooperation, a partition is provided inside the water tank body, the partition divides the space inside the water tank body into at least two water collection boxes, a drainage port is provided at the bottom of each water collection box, a drainage pipe is connected below each drainage port, and each of the drainage pipes is provided with a solenoid valve for controlling drainage, and the lower part of each drainage port faces the open upper part of the weighing inclined water trough; the upper frame assembly and the top edge of the water tank body are in cooperation, and the upper frame assembly has a wedge-shaped knife-like opening structure inclined towards the inside of the water tank body.

[0087] In this exemplary embodiment, the wedge-shaped knife-like opening structure includes:

[0088] An assembly part connected to the top edge of the water tank body, and the assembly part extends along the top edge of the water tank body;

[0089] A splicing part vertically aligned with the outer edge of the water tank body, and the bottom of the splicing part is connected to the outer edge of the assembly part; and

[0090] A landslide part evenly inclined from the top of the splicing part towards the inner edge of the assembly part.

[0091] In this exemplary embodiment, the bottom plate of each water collection box inclines towards the drainage port provided thereon.

[0092] In this exemplary embodiment, the system further includes a support device for fixing the spraying device; the support device includes: a plurality of support columns for vertically supporting on the test platform and a cross beam for connecting the tops of the support columns; the spraying device is installed on the cross beam.

[0093] In this exemplary embodiment, a height adjusting device is further provided at the bottom of the support device.

[0094] In this exemplary embodiment, the cross beam and the spraying device are connected by a lifting device; the lifting device is installed on the cross beam, and the lifting device includes a lifting mechanism that can extend downward from the cross beam; the spraying device is connected to the bottom of the lifting mechanism.

[0095] In this exemplary embodiment, the lifting mechanism includes: a scissor structure.

[0096] In this exemplary embodiment, the spraying device further includes: the balancing mechanism, which is installed between the support mechanism and the pipeline and is used to keep the pipeline in a horizontal position;

[0097] In this exemplary embodiment, the balancing mechanism includes balancing structures with the same number as the pipelines. Each balancing structure includes a pulley and a steel wire rope. The pulley is installed on the column body or the top of the support column. The first end of the steel wire rope is connected to the pipe body of the pipeline and the support column, and the second end hangs down after passing through the pulley.

[0098] This embodiment also provides a test method. Using the intelligent fire sprinkler water distribution test system, the test method includes:

[0099] a. The intelligent control device turns on the water supply device, forms a water curtain through the ceiling sprinkler, and the collection and measurement device collects the liquid in the water curtain. After reaching the specified time, the water supply device is turned off;

[0100] b. A data matrix corresponding to each water collection box in the collection and measurement device is configured in the intelligent control device;

[0101] c. The intelligent control device turns on the solenoid valve at the drainage port at the bottom of one water collection box in each collection and measurement device, and the liquid in the water collection box flows into the weighing inclined water tank below;

[0102] d. The intelligent control device turns on the weighing module to weigh the liquid in the weighing inclined water tank, and the intelligent control device records the weight in the corresponding device of the data matrix;

[0103] e. The intelligent control device turns on the solenoid valve at the drainage port of the weighing inclined water tank to empty the liquid inside the weighing inclined water tank, and the intelligent control device performs a zeroing operation on the weighing module;

[0104] f. Repeat steps c to e to weigh the liquid in the next water collection box until all the liquid in all the water collection boxes in the collection and measurement device has been weighed, and a data matrix recording all the weight data is obtained.

[0105] According to an embodiment of the present application, before step a, it includes: measuring the water pressure in the pipeline, using the nozzle acquisition device to obtain the data of the nozzle; calculating the target flow rate of the nozzle suitable for the current test. Specific Embodiment 1

[0107] This embodiment provides an intelligent fire sprinkler water distribution test system, and the intelligent fire sprinkler water distribution test system includes:

[0108] A water supply device 100 for providing a spray nozzle;

[0109] A spraying device 200, which is connected to the water supply device, and at least one pipe and at least one nozzle for the spraying nozzle are provided in the spraying device;

[0110] A support device 300;

[0111] A collection and measurement device 400, which is arranged directly below the spraying device and is used for collecting and measuring the water distribution performance of the nozzle; and

[0112] An intelligent control device 500, which is connected to the water supply device, the spraying device and the collection and measurement device.

[0113] Specifically refer to Figures 3 - 5 , this specific embodiment provides an automatic weighing water distribution test device composed of 16 collection and measurement devices 400 arranged in a 4*4 arrangement. The outer edges of the 16 collection and measurement devices 400 are of a straight structure and the sizes of all the collection and measurement devices 400 are of a square structure. Therefore, when installed, two collection and measurement devices 400 can be almost perfectly spliced together. Therefore, the top of the wedge-shaped knife-like mouth structure of the collection and measurement device 400 after splicing is almost seamlessly butted, and most of the splashed water can be reduced. In the wedge-shaped knife-like mouth structure, there is a landslide part 13 that slopes uniformly from the top of the splicing part 412 to the inner edge of the assembly part 411. When the splashed water droplets fall here, they will flow back into the water collection box 409 along the slope.

[0114] The upper frame assembly 401 cooperates with the edge top of the water tank body 402, and the upper frame assembly 401 has a wedge-shaped knife-like mouth structure that inclines towards the inside of the water tank body 402. In this exemplary embodiment, as Figure 4 shown, the wedge-shaped knife-like mouth structure includes: an assembly part 411 connected to the top edge of the water tank body 402, and the assembly part 411 extends along the top edge of the water tank body 402. A splicing part 412 vertically aligned with the outer edge of the water tank body 402, and the bottom of the splicing part 412 is connected to the outer edge of the assembly part 411. And a landslide part 413 that slopes uniformly from the top of the splicing part 412 to the inner edge of the assembly part 411. Compared with a normal ordinary box, using a wedge-shaped knife-like mouth can reduce most of the splashed water. The wedge-shaped knife-like mouth provides an inclined landslide at the top. Therefore, when the splashed water droplets fall here, they will flow back into the water collection box 409 along the slope. If a normal quadrilateral edge is used, the splashed water droplets will easily accumulate on the edge of the water collection box 409, increasing the error value of the spray test.

[0115] The partition 407 in the water tank body 402 is cross-shaped, and the partition 407 divides the interior of the water tank body 402 into four equal square water collection boxes 409. Each of the 16 collection and measurement devices 400 has 4 water collection boxes 409, so a total of 8*8 water collection boxes 409 form a matrix, and each water collection box 409 corresponds to each data unit in a data matrix. Among them, the solenoid valve 403, the solenoid valve 403 of the weighing inclined water tank 404, and the weighing module 405 in each collection and measurement device 400 are all connected to the intelligent control device 30 through data lines and other means.

[0116] The spraying unit 20 uses the support device 300 erected in the existing water distribution test, installs a water pipe on the top of the support device 300, and imitates the object to be measured, and installs a plurality of nozzles at corresponding intervals, angles, and positions on the water pipe to simulate the real spraying state of the object to be measured. The rear end of the water pipe is connected to the water supply device 100, and the water supply device 100 uses an existing water pump. After the water pump is turned on, water will flow into the top of the water pipe and be sprayed downward into the collection and measurement device 400 through the nozzles. The collection and measurement device 400 collects the water in the sprayed water curtain. Different water collection boxes 409 represent the water spraying conditions at different positions of the water curtain, and the water distribution condition of the object to be measured is evaluated through the data of the water spraying amount.

[0117] After setting up the above water distribution test device, the specific operation of the water distribution test can be started.

[0118] First, the intelligent control device 30 turns on the water supply device 100, and the water supply device 100 pumps tap water into the nozzles through the water pipe. The water is sprayed through the nozzles to form a water curtain, and the entire collection and measurement device 400 collects the tap water in the water curtain. After reaching the time specified in the test, the intelligent control device 30 turns off the water supply device 100. At this time, the collection and measurement device 400 has completed the water collection step in the entire water distribution test.

[0119] The intelligent control device 30 is configured with a data matrix corresponding to each water collection box 409 in the collection and measurement device 400. In this specific embodiment, a total of 4*4 collection and measurement devices 400 are used, that is, 64 water collection boxes 409 constitute this 8*8 data matrix. For the convenience of description, the water collection box 409 located in the upper left of each water collection box 409 is defined as the first water collection box 409, the water collection box 409 located in the upper right is defined as the second water collection box 409, the water collection box 409 located in the lower left is defined as the third water collection box 409, and the water collection box 409 located in the lower right is defined as the fourth water collection box 409.

[0120] After completing the initialization of the above definitions and data matrix, the intelligent control device 30 turns on the solenoid valve 403 on the drain port 408 at the bottom of the first water collection box 409 in each collection and measurement device 400. The liquid in the first water collection box 409 flows into the weighing inclined water tank 404 below. At this time, the solenoid valve 403 at the bottom of the weighing inclined water tank 404 is in the closed state. The intelligent control device 30 turns on the weighing module 405 to weigh the liquid in the weighing inclined water tank 404, and the intelligent control device 30 records the weight in the unit of the corresponding data matrix. After weighing the water volume in the first water collection box 409, the intelligent control device 30 turns on the solenoid valve 403 at the drain port 408 of the weighing inclined water tank 404 to empty the liquid inside the weighing inclined water tank 404, and the intelligent control device 30 performs a zeroing operation on the weighing module 405. This can ensure that each weighing is more accurate and avoid the generation of cumulative errors.

[0121] After weighing the first water collection box 409 in each collection and measurement device 400, the intelligent control device 30 sequentially weighs the liquid weights in the second water collection box 409, the third water collection box 409, and the fourth water collection box 409 according to the above steps until the liquids in all the water collection boxes 409 in the collection and measurement device 400 are weighed, obtaining a data matrix recording all weight data, that is, completing the data collection of this water distribution test.

[0122] The above is the entire process of the water distribution test. The present invention particularly focuses on improving the data collection link. A total of four batch weighing operations are performed during the data collection process, shortening the time and labor consumed in the data collection link. Among them, the number of batch weighing operations corresponds to the number of water collection boxes 4099 in each collection and measurement device 400. For example, if there are only two water collection boxes 409 in the collection and measurement device 400, a complete data matrix can be obtained by performing two batch weighing operations in total. Specific Embodiment 2

[0124] This embodiment provides an intelligent fire sprinkler water distribution test system, and the intelligent fire sprinkler water distribution test system includes:

[0125] A water supply device 100 for providing spray nozzles;

[0126] A spraying device 200, which is connected to the water supply device, and at least one pipe and at least one nozzle for spraying nozzles are provided in the spraying device;

[0127] A support device 300;

[0128] A collection and measurement device 400, which is arranged directly below the spraying device and is used for collecting and measuring the water distribution performance of the nozzles; and

[0129] The intelligent control device 500 is connected to a water supply device, a spraying device, and a collection and measurement device.

[0130] As Figure 6 and Figure 7 shown, this specific embodiment discloses a constant pressure water supply unit with a function of retaining pressure of the return water, including: a base 101, a water tank 112, a water outlet mechanism, a return water mechanism, a total output pipeline, and an intelligent control device 500.

[0131] Specifically refer to Figure 1 The water inlet end of the water outlet pipeline 102 in the water outlet mechanism is communicated with the water tank 112, and a motor pump 110 and an expansion tank 111 are sequentially arranged along the direction of the water outlet pipeline 102 of the water outlet mechanism. The water outlet mechanism is used to control the water flow rate and the pressure in the pipeline. The water outlet end of the water outlet pipeline 102 is communicated with the total output pipeline.

[0132] The motor pump 110 increases the pressure of the water flow and conveys the water flow; at the same time, the electric pump can be used to adjust the size of the water flow in the pipeline.

[0133] The working principle of the expansion tank 111 is that when the water with pressure from the outside enters the air bag in the expansion tank 111, the nitrogen gas sealed in the tank is compressed. According to Boyle's law of gases, the volume of the gas becomes smaller and the pressure increases after being compressed until the gas pressure in the expansion tank 111 is the same as the water pressure and the water inlet stops. When the water pressure decreases due to water loss, the gas pressure in the expansion tank 111 is greater than the water pressure. At this time, the gas expands and squeezes out the water in the air bag to supplement the system. The expansion tank 111 can balance the water flow rate and pressure in the pipeline, and avoid or reduce the influence on the pipeline when the pressure and water volume change.

[0134] The water inlet end of the return water pipeline 104 in the return water mechanism is communicated with the water inlet end of the water outlet pipeline 102 and the total output pipeline through a three-way valve. A first solenoid valve 105 and a regulating valve 106 are sequentially arranged along the return water direction of the return water mechanism. The water outlet end of the return water pipeline 104 is communicated with the water tank 112; a second solenoid valve 103 is arranged on the total output pipeline. A main valve 109 is further arranged on the water outlet pipeline 102 between the water tank 112 and the motor pump 110. A flow meter 108 is further arranged between the expansion tank 111 and the water outlet end of the water outlet pipeline 102. The intelligent control device 500 is further electrically connected to the flow meter 108 and the motor pump 110, and is used to adjust the motor pump 110 according to the flow data.

[0135] See Figure 7 , the intelligent control device 500 is further electrically connected to the main valve 109. The opening and closing of the main valve 109 play a role in controlling the opening and closing of the water supply for the water distribution test.

[0136] The intelligent control device 500 is electrically connected to the first solenoid valve 105 and the second solenoid valve 103, and is used to selectively close or open the first solenoid valve 105 and the second solenoid valve 103 at the same time. There are two solenoid valves, a return water valve and a water outlet valve, installed on the pipeline of the water supply unit. The working state of the water supply unit is divided into two states: return water pressure maintenance and water outlet test. In order to ensure the constancy of pressure and flow rate in the test state, the two solenoid valves for return water and water outlet adopt a linkage strategy logically, that is, when one is open, the other is closed, and the switching actions are carried out simultaneously.

[0137] When the constant pressure water supply unit with the function of maintaining return water pressure is supplying water, the intelligent control device 500 opens the main valve 109 and the second solenoid valve 103. In the water outlet pipeline 102, the intelligent control device 500 controls the motor pump 110 to inject water into the expansion tank 111. The expansion tank 111 balances the water flow rate and pressure in the pipeline. The water in the pipeline enters the main output pipeline through the flow meter 108. The size of the water flow rate in the pipeline regulated by the motor pump 110 is adjusted in real time by the intelligent control device 500 according to the value of the flow meter 108. In the return water pipeline 104, the first solenoid valve 105 is closed by the intelligent control device 500, and at this time the return water mechanism stops working.

[0138] When the water supply ends, the intelligent control device 500 closes the first solenoid valve 105, and the main output pipeline is closed; at the same time, the second solenoid valve 103 is opened, then the return water pipeline 104 is connected to the water inlet pipeline, and the water enters the return water mechanism after passing through the water outlet mechanism. The regulating valve 106 assists in regulating the water pressure and water volume flowing back to the water tank 112 to achieve a stable flow pressure state that matches the actual test state by stabilizing the pressure difference that appears when using different flow rates, so as to minimize the error caused by the instability of flow rate and pressure in the initial stage of the test. Specific Embodiment 3

[0140] This embodiment provides an intelligent fire sprinkler water distribution test system, which includes:

[0141] A water supply device 100 for providing spray nozzles;

[0142] A spraying device 200, which is connected to the water supply device, and at least one pipeline and at least one nozzle for spraying nozzles are provided in the spraying device;

[0143] A support device 300;

[0144] A collection and measurement device 400, which is arranged directly below the spraying device and is used for collecting and measuring the water distribution performance of the nozzles; and

[0145] An intelligent control device 500, which is connected to the water supply device, the spraying device and the collection and measurement device

[0146] Among them, the water supply device 100 is used to provide spray nozzles; the water supply device 100 includes a water tank 112 and a motor pump 110. The water tank 112 can use a reservoir or a water storage tank as the source of the nozzles, or can be connected to the municipal water supply network to act as the water tank 112. The selection and configuration of the water tank 112 can be flexibly selected according to the actual test site. Any device that can provide nozzles can be used as the water tank 112 in this embodiment. The motor pump 110 can be selected as a motor pump, and the maximum water pressure that the motor pump can provide is approximately 0.5 MPa. The model of the motor pump can be selected according to the configuration of the actual site. The water pressure characteristics provided by the motor pump are determined by the motor pump itself. This embodiment does not include the regulation of the water pressure in the pipe.

[0147] The connecting pipe connects the motor pump 110 and the pipe 201. The connecting pipe is selected as a flexible water pipe for transporting water from the water tank 112 to the pipe 201. The pipe 201 is suspended, and the height of the pipe 201 from the test platform or the ground should be adjusted arbitrarily according to the actual test height. The pipe 201 is composed of PPR, stainless steel or copper rigid water pipes, and more than one spray head 202 is provided on the pipe 201.

[0148] Among them, the installation positions of the spray heads 202 are arranged in sequence along the length direction of the pipe 201. The spray heads 202 can be arranged at equal or unequal intervals. Each spray head 202 forms a water curtain in a certain area in the spray state. Therefore, the distance between the spray heads 202 needs to be set according to specific test requirements.

[0149] Such as Figure 8 As shown, the pressure collection device 114 is arranged on the connecting pipe and / or the pipe 201 for measuring the first data in the pipe 201 or the connecting pipe; the first data includes the pipe pressure data. The pipe pressure is generally controlled by the motor pump 110. The motor pump 110 can usually provide a maximum pressure of 0.5 MPa, and the pipe pressure can be adjusted according to the output power.

[0150] The nozzle acquisition device 115 is installed above or below the pipe 201. The nozzle acquisition device 115 is used to acquire the second data of each spray head 202 on the connecting pipe. In this embodiment, the nozzle acquisition device 115 includes an image acquisition unit, a first recognition unit, a second recognition unit and a third recognition unit. The image acquisition unit is used to acquire the image data of the spray head 202. The image data acquired by the image acquisition unit includes the images of the pipe 201 and the spray head 202. The first recognition unit, the second recognition unit and the third recognition unit then obtain the second data by recognizing the image data.

[0151] Among them, the first recognition unit obtains the position data and / or spacing data of the spray head 202. The position data and / or spacing data of the spray head 202 are recognized by identifying the edge contour of the spray head 202 in the image data, and then the position data and / or spacing data of the spray head 202 are obtained according to the edge contour coordinates; alternatively, the center position coordinates of the spray head 202 are further calculated based on the edge contour coordinates as the position data and / or spacing data of the spray head 202.

[0152] Among them, the second recognition unit obtains the model data of the spray head 202. The model data are based on the corresponding model of the spray head 202 recognized in the image data. The flow coefficient corresponding to the spray head 202 is generally divided into three types: large, medium, and small, and the values are 16, 43, and 67 respectively. Given the known flow coefficient, the flow rate can be calculated using the following formula: Q = K_V * √(10 * P). In the formula, Q is the required flow rate, K_V is the flow coefficient, and P is the water pressure in the pipe. Among them, the water pressure in the pipe is determined by the motor pump. The second recognition unit then identifies through the image data which specific type among the large, medium, and small types the installed spray head is.

[0153] Among them, the third recognition unit obtains the quantity data of the spray head 202 and / or the pipeline 201. As mentioned above, in order to cooperate with all available spray heads 202, the flow rate range that the spray test device needs to meet is determined to use flow coefficients from 16 to 67. Therefore, the spray device needs to provide at least a water flow rate with a flow coefficient of 16 and at most a water flow rate with a flow coefficient of 67. However, in the spray test device, multiple pipelines 201 need to be supplied with water simultaneously. For example, when supplying water to 4 pipelines 201, in order for each pipeline 201 to obtain the required flow rate, the calculated value above should be multiplied by 4. The final required flow rate range of the spray test device is from 143.12 L / min to 599.28 L / min. Therefore, the third recognition unit identifies the quantity of the pipeline 201 and / or the spray head 202 from the image data.

[0154] The intelligent control device 500 then calculates the finally required water supply flow rate based on the above first data and second data, realizing a spray control system with adjustable flow rate adaptability.

[0155] Preferably, the water supply device 100 further includes a pressure stabilizing mechanism disposed within the connecting pipe. The working principle of the expansion tank 13 is that when water with external pressure enters the airbag of the expansion tank 13, the nitrogen gas sealed in the tank is compressed. According to Boyle's law of gases, the volume of the gas decreases and the pressure increases after being compressed until the gas pressure in the expansion tank 13 is the same as the water pressure and the water inlet stops. When the water pressure decreases due to water loss, the gas pressure in the expansion tank 13 is greater than the water pressure. At this time, the gas expands and squeezes out the water in the airbag to supplement the system. The expansion tank 13 can balance the water flow and pressure in the pipe, avoiding or reducing the impact on the pipeline when the pressure and water volume change. Specific Embodiment 4

[0157] As Figure 9 shown, the support device 300 includes multiple support columns 301 vertically supported on the test platform and a cross beam 302 connecting the tops of the support columns 301. Among them, an adjusting mechanism 304 for adjusting the height is further provided at the bottom end of the support column 301. The lifting device is installed on the cross beam 302, and the lifting device includes a lifting mechanism 303 that can extend downward from the cross beam 302. The spraying device is installed at the bottom of the lifting mechanism 303. The spraying device includes at least one pipe 201 and multiple nozzles 202. A plurality of nozzle ports 202 for installing the nozzles 202 are provided on each pipe 201, and the multiple nozzles 202 are installed in different nozzle ports 202 to form different nozzle spacings. The water supply device is communicated with the spraying device for supplying water into the spraying device. The measuring device is arranged directly below the spraying device for collecting and measuring the water spraying amount per unit area sprayed by the nozzles 202.

[0158] Specifically, the lifting mechanism 303 is a scissor-type lifting mechanism 303, and the scissor-type lifting mechanism 303 includes a compression hammer, scissor-type driving arms, and a driving device. Among them, the driving device is installed on the cross beam 302, the scissor-type driving arms are longitudinally and telescopically arranged below the driving device, and the upper ends are drivingly connected to the driving device. The compression hammer is arranged at the upper end of the scissor-type driving arms and moves up and down with the scissor-type driving arms moving up and down telescopically to adjust the lifting height of the scissor-type driving arms. The lifting range of the lifting mechanism 303 is selected within the range of 0 - 1.5 meters.

[0159] In this embodiment, the adjusting mechanism 304 is a pin-type adjusting mechanism 304. The pin-type adjusting mechanism 304 includes a base, auxiliary support rods, an inner rod, an outer rod, a pin member, and a connecting portion. The base is installed on the test platform and can be fixed using bolts or the like. The inner rod is located in the middle of the base. The auxiliary support rods respectively include a first support rod and a second support rod. The first support rod and the second support rod are respectively located on opposite sides of the inner rod. The two ends of the first support rod and the second support rod are respectively connected to the inner rod and the base, forming a diagonal brace between the inner rod and the base, which is used to reinforce the connection between the inner rod and the base and at the same time ensure that the installation angle of the inner rod is vertical. The outer rod is movably and coaxially arranged outside the inner rod, and the outer rod can move up and down. Corresponding pin holes are provided on both the inner rod and the outer rod. Since the adjustment range of this solution is discrete and limited by the distance between the pin holes, it is a sub-optimal solution. The top of the outer rod is provided with the connection. The support column 301 of the support structure can be connected inside the collar or integrally formed with the support column 301. A pin-type adjusting mechanism 304 is provided at the bottom of each support column 301. Under the action of this pin-type adjusting device, the support column 301 is adjusted to the appropriate height and locked by inserting the pin member into the pin hole at the corresponding height. Its height adjustment range is 0.8 - 2.3 meters. That is because the connection strength of the lift is inversely proportional to the lift height. That is, when the lift height increases, the connection strength of the lift will become weaker. Therefore, in order to ensure the connection strength of the lift, the lift range is selected in the range of 0 - 1.5 meters. When it is desired to increase the lift height, the spray test device has a lift support column 301 with a height of 0.8 meters to assist in increasing the lift height while ensuring the connection strength. Therefore, when the lift support column 301 is used, the lift range is 0.8 - 2.3 meters.

[0160] In this embodiment, the spray device includes four pipes 201 that are orthogonally connected in pairs. An inlet connected to the water supply device is provided at the intersection of the pipes 201. The body of the pipe 201 is connected and fixed to the lifting mechanism 303.

[0161] More specifically, each of the pipes 201 includes a first pipe and a second pipe connected coaxially; the water inlet end of the first pipe is communicated with the water inlet, the second pipe is provided with a plurality of nozzle ports 202 for installing nozzles 202, and the second pipe is slidably sleeved on the outer layer of the first pipe. Compared with the specific embodiment 1, this embodiment adds a structure of a first pipe and a second pipe that can slide relative to each other on the basis of it, thereby increasing the adjustable range of the focal length of the nozzle 202 on the basis of it. The maximum distance between the spray heads can reach 3500 mm, and the minimum can reach 1000 mm. The results obtained by the spray head combinations at different distances are different. The coverage area and the water collected by the water collection units at different positions will also change at different distances. Therefore, the spray device effects in different situations can be effectively detected by using spray head positions with different distances. This embodiment also includes means and well-known technologies commonly used by those skilled in the art, such as seals provided between the first pipe and the second pipe, which will not be described one by one in this embodiment. Specific Embodiment 5

[0163] This embodiment provides an intelligent fire sprinkler water distribution test system, and the intelligent fire sprinkler water distribution test system includes:

[0164] A water supply device 100 for providing spray nozzles;

[0165] A spraying device 200, which is connected to the water supply device, and at least one pipe and at least one nozzle for spraying nozzles are provided in the spraying device;

[0166] A support device 300;

[0167] A collection and measurement device 400, which is arranged directly below the spraying device for collecting and measuring the water distribution performance of the nozzles; and

[0168] An intelligent control device 500, which is connected to the water supply device, the spraying device and the collection and measurement device.

[0169] Specifically referring to Figures 3 - 5 , this specific embodiment provides an automatic weighing water distribution test device composed of 16 collection and measurement devices 400 arranged in a 4*4 arrangement. The outer edges of the 16 collection and measurement devices 400 adopt a straight structure and the sizes of all the collection and measurement devices 400 adopt a square structure. Therefore, when installed, two collection and measurement devices 400 can be almost perfectly spliced together. Therefore, the tops of the wedge-shaped knife-like mouth structures of the collection and measurement devices 400 are almost seamlessly butted after splicing, which can reduce most of the splashed water. In the wedge-shaped knife-like mouth structure, there is a landslide part 13 that uniformly slopes from the top of the splicing part 412 to the inner edge of the assembly part 411. When the splashed water droplets fall here, they will flow back into the water collection box 409 along the slope.

[0170] The upper frame component 401 cooperates with the top edge of the water tank body 402, and the upper frame component 401 has a wedge-shaped knife-like opening structure that inclines towards the inside of the water tank body 402. In this exemplary embodiment, as Figure 4 shown, the wedge-shaped knife-like opening structure includes: an assembly part 411 connected to the top edge of the water tank body 402, and the assembly part 411 extends along the top edge of the water tank body 402. A splicing part 412 that is vertically aligned with the outer edge of the water tank body 402, and the bottom of the splicing part 412 is connected to the outer edge of the assembly part 411. And a landslide part 413 that uniformly inclines from the top of the splicing part 412 towards the inner edge of the assembly part 411. Compared with a normal ordinary box, using the wedge-shaped knife-like opening can reduce most of the splashed water. The wedge-shaped knife-like opening provides an inclined landslide at the top. Therefore, when the splashed water droplets fall here, they will flow back into the water collection box 409 along the slope. If a normal quadrilateral edge is used, the splashed water droplets will easily accumulate on the edge of the water collection box 409, increasing the error value of the spray test.

[0171] The partition 407 in the water tank body 402 is cross-shaped, and the partition 407 divides the interior of the water tank body 402 into four equal square water collection boxes 409. Each of the 16 collection and measurement devices 400 has 4 water collection boxes 409, so a total of 8*8 water collection boxes 409 form a matrix, and each water collection box 409 corresponds to each data unit in a data matrix. Among them, the solenoid valve 403, the solenoid valve 403 of the weighing inclined water trough 404, and the weighing module 405 in each collection and measurement device 400 are all connected to the intelligent control device 30 through data lines and other means.

[0172] The spraying unit 20 uses the support device 300 erected in the existing water distribution test, erects a water pipe on the top of the support device 300, and imitates the object to be measured. A plurality of nozzles are installed at corresponding intervals, angles, and positions on the water pipe to simulate the real spraying state of the object to be measured. The rear end of the water pipe is connected to the water supply device 100, and the water supply device 100 uses an existing water pump. After the water pump is turned on, water will flow into the top of the water pipe and spray water downward into the collection and measurement device 400 through the nozzles. The collection and measurement device 400 collects the water in the sprayed water curtain. Different water collection boxes 409 represent the water spraying conditions at different positions of the water curtain, and the water distribution situation of the object to be measured is evaluated through the data of the water spraying amount.

[0173] After setting up the above water distribution test device, the specific operation of the water distribution test can be started.

[0174] First, the intelligent control device 30 turns on the water supply device 100, and the water supply device 100 pumps tap water into the nozzle through a water pipe. The tap water is sprayed through the nozzle to form a water curtain, and the entire water collection and measurement device 400 collects the tap water in the water curtain. After reaching the time specified in the test, the intelligent control device 30 turns off the water supply device 100. At this time, the water collection and measurement device 400 has completed the water collection step in the entire water distribution test.

[0175] A data matrix corresponding to each water collection box 409 in the water collection and measurement device 400 is configured in the intelligent control device 30. In this specific embodiment, a total of 4*4 water collection and measurement devices 400 are used, that is, 64 water collection boxes 409 form this 8*8 data matrix. For ease of explanation, the water collection box 409 located in the upper left corner of each water collection box 409 is defined as the first water collection box 409, the water collection box 409 located in the upper right corner is defined as the second water collection box 409, the water collection box 409 located in the lower left corner is defined as the third water collection box 409, and the water collection box 409 located in the lower right corner is defined as the fourth water collection box 409.

[0176] After completing the above definition and initialization of the data matrix, the intelligent control device 30 turns on the solenoid valve 403 on the drain port 408 at the bottom of the first water collection box 409 in each water collection and measurement device 400. The liquid in the first water collection box 409 flows into the weighing inclined water tank 404 below. At this time, the solenoid valve 403 at the bottom of the weighing inclined water tank 404 is in the closed state. The intelligent control device 30 turns on the weighing module 405 to weigh the liquid in the weighing inclined water tank 404, and the intelligent control device 30 records the weight in the unit of the corresponding data matrix. After weighing the water volume in the first water collection box 409, the intelligent control device 30 turns on the solenoid valve 403 at the drain port 408 of the weighing inclined water tank 404 to empty the liquid inside the weighing inclined water tank 404, and the intelligent control device 30 performs a zero adjustment operation on the weighing module 405. This can ensure that each weighing is more accurate and avoid the generation of cumulative errors.

[0177] After weighing the first water collection box 409 in each water collection and measurement device 400, the intelligent control device 30 sequentially weighs the liquid weights in the second water collection box 409, the third water collection box 409, and the fourth water collection box 409 according to the above steps until the liquids in all the water collection boxes 409 in the water collection and measurement device 400 are weighed, obtaining a data matrix recording all the weight data, that is, completing the data collection of this water distribution test.

[0178] The above is the entire process of the water distribution test. The present invention particularly focuses on improving the data collection link. During the data collection process, a total of four batch weighing operations were carried out, shortening the time and manpower consumed in the data collection link. Among them, the number of batch weighing operations corresponds to the number of water collection boxes 4099 in each collection and measurement device 400. For example, if there are only two water collection boxes 409 in the collection and measurement device 400, a total of two batch weighing operations can obtain a complete data matrix.

[0179] As Figure 6 and Figure 7 shown, this specific embodiment discloses a constant pressure water supply unit with a function of maintaining the pressure of the return water, including: a base 101, a water tank 112, a water outlet mechanism, a return water mechanism, a total output pipeline, and an intelligent control device 500.

[0180] Specifically refer to Figure 1 The water inlet end of the water outlet pipeline 102 in the water outlet mechanism is communicated with the water tank 112, and a motor pump 110 and an expansion tank 111 are sequentially arranged along the direction of the water outlet pipeline 102 of the water outlet mechanism. The water outlet mechanism is used to control the water flow rate and the pressure in the pipeline, and the water outlet end of the water outlet pipeline 102 is communicated with the total output pipeline.

[0181] The motor pump 110 increases the pressure of the water flow and conveys the water flow; at the same time, the electric pump can be used to adjust the size of the water flow in the pipeline.

[0182] The working principle of the expansion tank 111 is that when the water with pressure from the outside enters the air bag of the expansion tank 111, the nitrogen gas sealed in the tank is compressed. According to Boyle's gas law, the volume of the gas becomes smaller and the pressure increases after being compressed until the gas pressure in the expansion tank 111 is the same as the water pressure and the water inlet stops. When the water pressure decreases due to water loss, the gas pressure in the expansion tank 111 is greater than the water pressure. At this time, the gas expands and squeezes out the water in the air bag to supplement the system. The expansion tank 111 can balance the water flow rate and pressure in the pipeline, avoiding or reducing the impact on the pipeline when the pressure and water volume change.

[0183] The water inlet end of the return water pipeline 104 in the return water mechanism is connected to the water inlet end of the water outlet pipeline 102 and the total output pipeline through a three-way valve. A first solenoid valve 105 and a regulating valve 106 are arranged in sequence along the return water direction of the return water mechanism, and the water outlet end of the return water pipeline 104 is connected to the water tank 112; a second solenoid valve 103 is arranged on the total output pipeline. A main valve 109 is further arranged on the water outlet pipeline 102 between the water tank 112 and the motor pump 110. A flow meter 108 is further arranged between the expansion tank 111 and the water outlet end of the water outlet pipeline 102. The intelligent control device 500 is further electrically connected to the flow meter 108 and the motor pump 110, and is used to adjust the motor pump 110 according to the flow data.

[0184] See Figure 7 , the intelligent control device 500 is further electrically connected to the main valve 109. The opening and closing of the main valve 109 play a role in controlling the opening and closing of the water supply for the water distribution test.

[0185] The intelligent control device 500 is electrically connected to the first solenoid valve 105 and the second solenoid valve 103, and is used to close or select one of the first solenoid valve 105 and the second solenoid valve 103 at the same time. Two solenoid valves, namely a return water solenoid valve and a water outlet solenoid valve, are arranged on the pipeline of the water supply unit. The working state of the water supply unit is divided into two states: return water pressure maintenance and water outlet test. In order to ensure the constancy of the pressure and flow rate in the test state, the return water solenoid valve and the water outlet solenoid valve adopt a linkage strategy logically. When one is opened, the other is closed, and the switching actions are carried out simultaneously.

[0186] When the constant pressure water supply unit with the return water pressure maintenance function is supplying water, the intelligent control device 500 opens the main valve 109 and the second solenoid valve 103. In the water outlet pipeline 102, the intelligent control device 500 controls the motor pump 110 to inject water into the expansion tank 111. The expansion tank 111 balances the water flow rate and pressure in the pipeline. The water in the pipeline enters the total output pipeline through the flow meter 108. The size of the water flow rate in the pipeline adjusted by the motor pump 110 is adjusted in real time by the intelligent control device 500 according to the value of the flow meter 108. In the return water pipeline 104, the first solenoid valve 105 is closed by the intelligent control device 500, and at this time the return water mechanism stops working.

[0187] When the water supply ends, the intelligent control device 500 closes the first solenoid valve 105, and the main output pipeline is closed; at the same time, the second solenoid valve 103 is opened, so that the return water pipeline 104 is connected to the water inlet pipeline, and the water enters the return water mechanism after passing through the water outlet mechanism. The regulating valve 106 assists in regulating the water pressure and water volume flowing back to the water tank 112 to achieve a stable pressure difference that appears when using different flow rates, and to reach a stable flow-pressure state that matches the actual test state, so as to minimize the error caused by the unstable flow-pressure in the initial stage of the test to the greatest extent.

[0188] Among them, the water supply device 100 is used to provide the spray nozzles; the water supply device 100 includes a water tank 112 and a motor pump 110. The water tank 112 can use a reservoir or a water storage tank as the source of the nozzles, or can be connected to the municipal water supply network to act as the water tank 112. The selection and configuration of the water tank 112 can be flexibly selected according to the actual test site, and any device that can provide nozzles can be used as the water tank 112 in this embodiment. The motor pump 110 can be selected as a motor pump, and the maximum water pressure that the motor pump can provide is about 0.5 MPa. The model of the motor pump can be selected according to the configuration of the actual site, and the water pressure characteristics provided by the motor pump are determined by the motor pump itself. This embodiment does not include the regulation of the water pressure in the pipe.

[0189] The connecting pipe connects the motor pump 110 and the pipe 201. The connecting pipe is selected as a flexible water pipe for transporting water from the water tank 112 into the pipe 201. The pipe 201 is suspended, and the height of the pipe 201 from the test platform or the ground should be adjusted arbitrarily according to the actual test height. The pipe 201 is composed of PPR, stainless steel or copper rigid water pipes, and one or more spray heads 202 are provided on the pipe 201.

[0190] Among them, the spray heads 202 are arranged in sequence along the length direction of the pipe 201. The spray heads 202 can be arranged at equal or unequal intervals. Each spray head 202 forms a water curtain in a certain area in the spray state, so the distance between the spray heads 202 needs to be set according to specific test requirements.

[0191] The pressure collection device 114 is arranged on the connecting pipe and / or the pipe 201 for measuring the first data in the pipe 201 or the connecting pipe; the first data includes the in-pipe pressure data. The in-pipe pressure is generally controlled by the motor pump 110. The motor pump 110 can usually provide a maximum pressure of 0.5 MPa, and the in-pipe pressure can be adjusted according to the output power.

[0192] The nozzle acquisition device 115 is installed above or below the pipeline 201. The nozzle acquisition device 115 is used to acquire the second data of each spray head 202 on the connecting pipeline. In this embodiment, the nozzle acquisition device 115 includes an image acquisition unit, a first recognition unit, a second recognition unit, and a third recognition unit. The image acquisition unit is used to acquire the image data of the spray head 202. The image data acquired by the image acquisition unit includes the images of the pipeline 201 and the spray head 202. The first recognition unit, the second recognition unit, and the third recognition unit obtain the second data by recognizing the image data.

[0193] Among them, the first recognition unit acquires the position data and / or spacing data of the spray head 202. The position data and / or spacing data of the spray head 202 are recognized by identifying the edge contour of the spray head 202 in the image data, and then the position data and / or spacing data of the spray head 202 are obtained according to the edge contour coordinates; alternatively, the central position coordinates of the spray head 202 are further calculated based on the edge contour coordinates as the position data and / or spacing data of the spray head 202.

[0194] Among them, the second recognition unit acquires the model data of the spray head 202. The model data is based on the corresponding model of the spray head 202 recognized in the image data. The flow coefficient corresponding to the spray head 202 is generally divided into three types: large, medium, and small, and the values are 16, 43, and 67 respectively. In the case of known flow coefficient, the flow rate can be calculated using the following formula: Q = K_V * √(10 * P). In the formula, Q is the required flow rate, K_V is the flow coefficient, and P is the water pressure in the pipe. Among them, the water pressure in the pipe is determined by the motor pump. The second recognition unit then identifies through the image data which specific type among the three types of large, medium, and small the installed spray head is.

[0195] Among them, the third recognition unit acquires the quantity data of the spray head 202 and / or the pipeline 201. As described above, in order to cooperate with all available spray heads 202, the flow rate range that the spray test device needs to meet is determined to use a flow coefficient of 16 to 67. Therefore, the spray device needs to provide at least a water flow rate with a flow coefficient of 16 and at most a water flow rate with a flow coefficient of 67. However, in the spray test device, multiple pipelines 201 need to be supplied with water simultaneously. For example, when supplying water to 4 pipelines 201, in order for each pipeline 201 to obtain the required flow rate, the calculated value above should be multiplied by 4. The final required flow rate range of the spray test device is 143.12 L / min to 599.28 L / min. Therefore, the third recognition unit identifies the quantity of the pipeline 201 and / or the spray head 202 from the image data.

[0196] The intelligent control device 500 calculates the finally required water supply flow rate according to the above-mentioned first data and second data, realizing a spray control system with adjustable flow rate adaptively.

[0197] Preferably, the water supply device 100 further includes a voltage stabilizing mechanism, and the voltage stabilizing mechanism is arranged in the connecting pipeline. The working principle of the expansion tank 13 is that when the water with pressure from the outside enters the airbag of the expansion tank 13, the nitrogen gas sealed in the tank is compressed. According to Boyle's law of gases, the volume of the gas becomes smaller and the pressure increases after being compressed until the gas pressure in the expansion tank 13 is the same as the water pressure and the water inlet stops. When the water pressure decreases due to water loss, the gas pressure in the expansion tank 13 is greater than the water pressure. At this time, the gas expands to squeeze out the water in the airbag to supplement the system. The expansion tank 13 can balance the water flow rate and pressure in the pipeline, avoiding or reducing the influence on the pipeline when the pressure and water volume change.

[0198] The support device 300 includes multiple support columns 301 for vertically supporting on the test platform and a cross beam 302 for connecting the tops of the support columns 301. Among them, an adjusting mechanism 304 for adjusting the height is further provided at the bottom end of the support column 301. The lifting device is installed on the cross beam 302, and the lifting device includes a lifting mechanism 303 that can extend downward from the cross beam 302. The spray device is installed at the bottom of the lifting mechanism 303. The spray device includes at least one pipe 201 and multiple nozzles 202. Multiple nozzle ports 202 for installing the nozzles 202 are arranged on each pipe 201, and the multiple nozzles 202 are installed in different nozzle ports 202 to form different nozzle spacings. The water supply device is communicated with the spray device for supplying water to the spray device. The measuring device is arranged directly below the spray device for collecting and measuring the water spray amount per unit area sprayed by the nozzles 202.

[0199] Specifically, the lifting mechanism 303 is a scissor-type lifting mechanism 303. The scissor-type lifting mechanism 303 includes a compression hammer, scissor-type driving arms and a driving device. Among them, the driving device is installed on the cross beam 302, the scissor-type driving arms are longitudinally arranged and can be telescoped up and down below the driving device, and the upper ends are drivingly connected with the driving device. The compression hammer is arranged at the upper end of the scissor-type driving arms and moves up and down with the scissor-type driving arms that move up and down telescopically to adjust the lifting height of the scissor-type driving arms. The lifting range of the lifting mechanism 303 is selected in the range of 0 - 1.5 meters.

[0200] In this embodiment, the adjusting mechanism 304 is a plug-type adjusting mechanism 304. The plug-type adjusting mechanism 304 includes a base, auxiliary support rods, an inner rod, an outer rod, a plug member, and a connecting portion. The base is installed on the test platform and can be fixed using bolts or the like. The inner rod is located in the middle of the base. The auxiliary support rods respectively include a first support rod and a second support rod. The first support rod and the second support rod are respectively located on opposite sides of the inner rod. The two ends of the first support rod and the second support rod are respectively connected to the inner rod and the base, forming a diagonal brace between the inner rod and the base, which is used to reinforce the connection between the inner rod and the base and at the same time ensure that the installation angle of the inner rod is in a vertical state. The outer rod is movably and coaxially arranged outside the inner rod, and the outer rod can move up and down. Corresponding plug holes are provided on both the inner rod and the outer rod. Since the adjustment range of this solution is discrete and limited by the spacing between the plug holes, it is a sub-optimal solution. The top of the outer rod is provided with the connection. The support column 301 of the support structure can be connected inside the collar or integrally formed with the support column 301. A plug-type adjusting mechanism 304 is provided at the bottom of each support column 301. Under the action of this plug-type adjusting device, the support column 301 is adjusted to an appropriate height and locked by inserting the plug member into the plug hole at the corresponding height. Its height adjustment range is 0.8 - 2.3 meters. That is because the connection strength of the elevator is inversely proportional to the lifting height of the elevator, that is, when the lifting height of the elevator increases, the connection strength of the elevator will become weaker. Therefore, in order to ensure the connection strength of the elevator, the lifting range of the elevator is selected in the range of 0 - 1.5 meters. When it is desired to increase the lifting height, the spray test device has a support column 301 that rises by 0.8 meters to assist in increasing the lifting height while ensuring the connection strength. Therefore, when the rising support column 301 is used, the range of the elevator is 0.8 - 2.3 meters.

[0201] In this embodiment, the spray device includes four pipes 201 that are orthogonally connected in pairs. An inlet connected to the water supply device is provided at the intersection of the pipes 201. The body of the pipe 201 is connected and fixed to the lifting mechanism 303.

[0202] More specifically, each of the pipes 201 includes a first pipe and a second pipe connected coaxially; the water inlet end of the first pipe is communicated with the water inlet, the second pipe is provided with a plurality of nozzle ports 202 for installing nozzles 202, and the second pipe is slidably sleeved on the outer layer of the first pipe. Compared with this, this embodiment adds a structure of a first pipe and a second pipe that can slide relative to each other on this basis, thereby increasing the adjustable range of the focal length of the nozzle 202. The maximum distance between the spray heads can reach 3500 mm, and the minimum can reach 1000 mm. The results obtained by the spray head combinations at different distances are different. The coverage area at different distances and the water collected by the water collection units at different positions will also change. Therefore, the effects of the spray device in different situations can be effectively detected by using spray head positions with different distances. This embodiment also includes means and well-known technologies commonly used by those skilled in the art, such as seals provided between the first pipe and the second pipe, which will not be described one by one in this embodiment.

[0203] More specifically, specifically as Figure 10 shown, the balance mechanism includes balance structures having the same number as the pipes 202. Each balance structure includes a pulley 306 and a steel wire rope 307. The pulley 306 is installed on the column body or the top end of the support column 1. The first end of the steel wire rope 307 is connected to the pipe body of the pipe 202 and the support column 305, and the second end hangs down after passing through the pulley 306. First fixing rings 308 and second fixing rings 309 are provided on the pipe body of the pipe 202. The first fixing rings 308 and the second fixing rings 309 are arranged in sequence from the end of the pipe 202 to the support column 305. The first end of the steel wire rope 307 passes through the first fixing ring 308 and the second fixing ring 309 in sequence and then is connected to the fixed column 305. More preferably, the second end of the steel wire rope 307 is fixed to the support column 1 by bundling it on the column body of the support column 1, so as to distribute the load weight of the pipe 202 to the support column 1 and the pulley 306, and further maintain the horizontal state of the pipe 202. A spirit level is further included in the balance structure. The spirit level is arranged on the pipe body of the pipe 202 and is used to detect whether each pipe 202 is in a horizontal position.

[0204] In summary, the beneficial effects of this application are:

[0205] The present application uses a collection and measurement device that is different from the prior art. Compared with a normal ordinary box, the use of a wedge-shaped knife-shaped mouth can reduce most of the splashing water. The wedge-shaped knife-shaped mouth provides an inclined landslide at the top, so when the splashing water drops here, it will flow back into the water collection box along the slope. Because the edge of the wedge-shaped knife-shaped mouth is assembled in a detachable form, the maintenance cost and time can be greatly reduced. Compared with other components, the edge of the wedge-shaped knife-shaped mouth located on the outside will inevitably be damaged during the movement and assembly process, and the wedge-shaped knife-shaped mouth edge of the water collection unit is detachable, so that when only the edge is damaged, the wedge-shaped knife-shaped mouth edge can be removed and repaired separately. Therefore, compared to repairing or replacing the entire water collection unit, such a design can greatly reduce costs and time. The entire conveying and weighing process will be supervised by the intelligent control device, which can control the conveying by controlling the switch of the solenoid valve on the conveying port; and the weighing readings of the weighing box will also be synchronously displayed on the intelligent control device. When the weighing is completed, the active end can control the drainage by controlling the solenoid valve under the weighing box.

[0206] In the system initialization phase of the present application, the water supply device adopts the return water mode to achieve a stable flow pressure state that matches the actual test state, which can minimize the error caused by unstable flow pressure at the beginning of the test; a regulating valve is installed in the return water pipeline, and the adjustable range covers the flow of all test nozzle samples, which can ensure that the return water pressure maintenance state matches the actual test state, so that the water supply device can be well adapted to all test states.

[0207] The present application plays a role in initial setting and adaptive real-time monitoring of the flow rate at the beginning of the spray test and during the test, which realizes the actual reproduction function of the theoretical model as much as possible. While getting rid of manual adjustment, it also improves the precise control of the flow rate during the test.

[0208] The intelligent fire sprinkler water distribution test system and method of the present application provides a function of initial setting and adaptive real-time monitoring of flow rate at the beginning of the spray test and during the test, which realizes the actual reproduction function of the spray theoretical model of the spray system as much as possible, and while getting rid of manual adjustment, it also improves the precise control of flow rate during the spray test. Compared with the existing spray test, it is a more accurate automatic adjustment method. On this basis, the present application also provides an adaptive adjustment method suitable for the above-mentioned system. Compared with the prior art, the present application proposes for the first time the monitoring of flow rate and water pressure and the regulation of flow rate during the test spray test, which is used to accurately test the spray capacity (water distribution performance) of the fire extinguishing device.

[0209] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, improvements, equivalent replacements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. An intelligent fire sprinkler water distribution test system, characterized in that, The intelligent fire sprinkler water distribution test system includes: A water supply device for providing water for the spray test; A spraying device connected to the water supply device, where at least one pipe and at least one sprinkler for spraying test water are provided in the spraying device; A collection and measurement device arranged directly below the spraying device for collecting and measuring the water distribution performance of the sprinkler; and An intelligent control device connected to the water supply device, the spraying device, and the collection and measurement device; The water supply device includes: a water tank, a water pumping mechanism, a water return mechanism, and a main output pipeline; Among them, the inlet end of the pump water pipeline in the water pumping mechanism is communicated with the water tank, and a motor pump and an expansion tank are sequentially arranged along the direction of the pump water pipeline of the water pumping mechanism. The water pumping mechanism is used to control the flow rate of the pumped water and the pressure in the pipe. The water pumping end of the pump water pipeline is communicated with the main output pipeline; The inlet end of the return water pipeline in the water return mechanism is communicated with the inlet end of the pump water pipeline and the main output pipeline through a three-way valve; a first solenoid valve and a regulating valve are sequentially arranged along the water return direction of the water return mechanism. The water pumping end of the return water pipeline is communicated with the water tank; A second solenoid valve is arranged on the main output pipeline; The first solenoid valve and the second solenoid valve are respectively electrically connected to the intelligent control device, and the intelligent control device controls the first solenoid valve and the second solenoid valve to be alternately closed or selected at the same time; The system further includes a data collection device, and the data collection device includes: A pressure collection device for obtaining the water pressure in the pipe of the water supply device; A sprinkler acquisition device for obtaining data of the spraying device; Among them, the data collection device is also connected to the intelligent control device; The sprinkler acquisition device includes: An image acquisition unit for acquiring image data of the sprinkler; A first identification unit for acquiring the position data and / or spacing data of the sprinkler; A second identification unit for acquiring the model data of the sprinkler; and / or A third identification unit for acquiring the quantity data of the sprinkler and / or the spray pipeline.

2. The intelligent fire sprinkler water distribution test system according to claim 1, characterized in that, A main valve is further arranged on the water outlet pipeline between the water tank and the motor pump; a flow meter is further arranged between the expansion tank and the water outlet end of the water outlet pipeline. The main valve and the flow meter are respectively electrically connected to the intelligent control device.

3. The intelligent fire sprinkler water distribution test system according to claim 1, characterized in that, The collection and measurement device includes: an upper frame assembly, a water tank body, at least one solenoid valve, a weighing inclined trough, a weighing module, and a base; wherein, the base includes a horizontally arranged cross beam and a vertically arranged frame; the weighing module is fixed to the cross beam, the upper part of the weighing module is connected to the weighing inclined trough, the upper part of the weighing inclined trough is open, the open upper part of the weighing inclined trough is located below the water tank body, and a solenoid valve for controlling drainage is provided at the bottom of the weighing inclined trough; the edge of the water tank body and the top of the frame of the base are fixed to each other after cooperation, a partition is provided inside the water tank body, the space inside the water tank body is divided into at least two water collection boxes by the partition, a drainage port is provided at the bottom of each water collection box, a drainage pipe is connected below each drainage port, and each of the drainage pipes is provided with a solenoid valve for controlling drainage, and the lower part of each drainage port is directed at the open upper part of the weighing inclined trough; the upper frame assembly and the top edge of the water tank body are matched, and the upper frame assembly has a wedge-shaped knife-like opening structure inclined towards the inside of the water tank body.

4. The intelligent fire sprinkler water distribution test system according to claim 3, characterized in that, The wedge-shaped knife-like opening structure includes: An assembly part connected to the top edge of the water tank body, the assembly part extending along the top edge of the water tank body; a splicing part vertically aligned with the outer edge of the water tank body, the bottom of the splicing part being connected to the outer edge of the assembly part; and A landslide part uniformly inclined from the top of the splicing part towards the inner edge of the assembly part.

5. The intelligent fire sprinkler water distribution test system according to claim 3, characterized in that, The bottom plate of each water collection box inclines towards the drainage port provided thereon.

6. The intelligent fire sprinkler water distribution test system according to any one of claims 1-5, characterized in that, The system further includes a support device for fixing the spraying device; the support device includes: multiple support columns for vertically supporting on the test platform and a cross beam for connecting the tops of the support columns; the spraying device is installed on the cross beam.

7. The intelligent fire sprinkler water distribution test system according to claim 6, characterized in that, A height adjustment device is further provided at the bottom of the support device.

8. The intelligent fire sprinkler water distribution test system according to claim 7, characterized in that, The cross beam and the spraying device are connected by a lifting device; the lifting device is installed on the cross beam, and the lifting device includes a lifting mechanism that can extend downward from the cross beam; the spraying device is connected to the bottom of the lifting mechanism.

9. The intelligent fire sprinkler water distribution test system according to claim 8, wherein, The lifting mechanism includes: a scissor structure.

10. The intelligent fire sprinkler water distribution test system according to claim 8, wherein, The spraying device further includes: a balance mechanism, which is installed between the support device and the pipeline and is used to keep the pipeline in a horizontal position.

11. The intelligent fire sprinkler water distribution test system according to claim 10, wherein, The balance mechanism includes balance structures with the same number as the pipelines. Each balance structure includes a pulley and a steel wire rope. The pulley is installed on the column body or the top of the support column. The first end of the steel wire rope is connected to the pipe body of the pipeline and the support column, and the second end hangs down after passing through the pulley.

12. A test method, using the intelligent fire sprinkler water distribution test system according to any one of claims 1-11, wherein, The test method includes: a. The intelligent control device turns on the water supply device, sprays through the ceiling sprinkler to form a water curtain, the collection and measurement device collects the liquid in the water curtain in the water curtain, and turns off the water supply device after reaching the specified time; b. A data matrix corresponding to each water collection box in the collection and measurement device is configured in the intelligent control device; c. The intelligent control device opens the solenoid valve on the drain outlet at the bottom of one water collection box in each collection and measurement device, and the liquid in the water collection box flows into the weighing inclined water trough below; d. The intelligent control device activates the weighing module to weigh the liquid in the weighing inclined water trough, and the intelligent control device records the weight in the corresponding data matrix device; e. The intelligent control device opens the solenoid valve at the drain outlet of the weighing inclined water trough to empty the liquid inside the weighing inclined water trough, and the intelligent control device performs a zeroing operation on the weighing module; f. Repeat steps c to e to weigh the liquid in the next water collection box until the liquids in all the water collection boxes in the collection and measurement device have been weighed, obtaining a data matrix recording all the weight data.

13. The test method according to claim 12, wherein, Before step a includes: Measure the water pressure in the pipeline and obtain the data of the sprinkler using the sprinkler acquisition device; Calculate the target flow rate of the sprinkler suitable for the current test.

Images