Multi-flow-path constant-flow hose connecting and distributing device

Abstract

The utility model discloses a multi-flow-path constant-flow hose connecting and distributing device, and relates to the technical field of hydraulic systems. The multi-flow-path constant-flow hose connecting and distributing device comprises a liquid supply device, a main flow path, a plurality of first branches arranged in parallel and a liquid leakage detection device, the same first branch is provided with a plurality of second branches arranged in parallel, and the main flow path comprises a liquid inlet flow path and a liquid return flow path; one end of the first branch is connected to the liquid inlet flow path, and the other end is connected to the liquid return flow path; one end of the second branch is connected with the liquid inlet end of the first branch, and the other end of the second branch is connected to the liquid outlet end of the first branch; the second branch is provided with a hose section; the liquid leakage detection device is used for detecting whether the hose section leaks liquid or not. According to the multi-flow-path constant-flow hose connecting and distributing device, whether the hose leaks, deforms or is damaged or not can be found in time through the liquid leakage detection device.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic systems, and more specifically to a multi-flow path constant flow hose connection and distribution device. Background Art

[0002] The flow distribution problem in multi-branch parallel pipelines is widely used in actual use. The flow state of the fluid in the parallel pipeline is directly related to the reliability and economy of the equipment.

[0003] Especially when there are hoses in multi-branch parallel pipelines, due to the softness of the hoses themselves, they can play a role in axial displacement protection when connected in the pipelines. They have the ability to compensate for large displacements and are widely used in pipeline systems. However, when hoses are used in complex scenarios such as high temperature and high pressure, hose connections are prone to leakage, deformation, damage, etc., resulting in hose failure and system pipelines being unable to operate normally.

[0004] In summary, how to provide a multi-channel constant flow hose connection and distribution device that can promptly detect hose failure is a problem that currently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a multi-channel constant flow hose connection and distribution device, which can detect whether the hose is leaking in time through a leakage detection device.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A multi-flow path constant flow hose connection and distribution device, comprising:

[0008] Liquid supply device;

[0009] The main flow path includes a liquid inlet flow path and a liquid return flow path, and the liquid supply device provides liquid to the main flow path;

[0010] A plurality of first branches arranged in parallel, wherein one end of the first branch is connected to the liquid inlet flow path, and the other end of the first branch is connected to the liquid return flow path;

[0011] The second branch, the same first branch includes a plurality of second branches arranged in parallel, one end of the second branch is connected to the liquid inlet end of the first branch, and the other end is connected to the liquid outlet end of the first branch; and the second branch is provided with a hose section; a leakage detection device is located in a detection area where leakage information of the hose section can be obtained, and is used to detect whether the hose section is leaking.

[0012] Optionally, the liquid leakage detection device comprises:

[0013] A photographing device, used to obtain image information of the hose segment;

[0014] The water immersion sensor is arranged on the hose section and is used to detect whether the hose section is leaking.

[0015] Optionally, the second branch is provided with a quick-release chuck, and the quick-release chuck is used to connect the hose section to the second branch.

[0016] Optionally, two first stop valves are provided in any second branch, and the two first stop valves are respectively provided at two ends of the hose section;

[0017] And / or, a reserved opening for a measured point is provided between the first stop valve and the quick chuck, and the reserved opening for the measured point is used to provide a reserved interface for equipment installation.

[0018] Optionally, the second branch is provided with a liquid intake port, and the liquid intake port is provided at the connection between the second branch and the first branch;

[0019] The liquid flowing out of the liquid intake port can be directly discharged into the liquid intake box or flow back to the liquid supply device through a connecting pipeline.

[0020] Optionally, the liquid inlet end of the first branch is provided with a first flow meter, a first electric two-way valve, and a second stop valve in sequence from one end close to the liquid inlet flow path to one end close to the second branch, and the liquid outlet end of the first branch is provided with a third stop valve.

[0021] Optionally, it further comprises a flow regulating flow path, one end of which is connected to the liquid inlet flow path, and the other end is connected to the liquid return flow path, and the flow regulating flow path is provided with a second electric two-way valve.

[0022] Optionally, it also includes a refrigeration system and a three-way valve arranged in the return liquid flow circuit, the first end of the three-way valve is connected to the liquid inlet pipeline of the refrigeration system, the second end of the three-way valve is connected to the liquid outlet pipeline of the refrigeration system, and the third end of the three-way valve is connected to the connecting section of the return liquid flow circuit with the liquid inlet flow circuit.

[0023] Optionally, the liquid inlet flow path is provided with a liquid replenishing point, and the liquid supply device is connected to the liquid replenishing point;

[0024] The liquid inlet flow path before the liquid replenishment point is provided with a first temperature sensor, a first pressure sensor and an expansion tank;

[0025] The liquid inlet flow path after the liquid replenishment point is sequentially provided with a filter, a second pressure sensor, a variable frequency water pump, a third pressure sensor, a drain valve, a safety valve, a pipeline heater, and a second temperature sensor.

[0026] Optionally, the liquid supply device comprises:

[0027] A fluid replenishment tank, provided with a fluid replenishment port and a quick connector;

[0028] A first liquid level sensor is arranged at a preset maximum liquid level in the liquid replenishing tank;

[0029] A second liquid level sensor is arranged at a preset minimum liquid level in the liquid replenishing tank;

[0030] A fluid infusion pipeline, one end of which is connected to the quick connector, and the other end of which is connected to the liquid inlet flow path, and the fluid infusion pipeline is provided with a fluid infusion pump and a one-way valve.

[0031] In the process of using the multi-channel constant flow hose provided by the utility model to connect the distribution device, the liquid enters the first branch from the liquid inlet flow path, and enters the second branch from the first branch, flows out from the second branch and enters the outflow end of the first branch, the liquid flowing out of the first branch enters the liquid return flow path, and the liquid return flow path is connected to the liquid inlet flow path to realize the circulation of the liquid.

[0032] During use, the leakage detection device is used to detect whether the hose section is leaking. When the hose leaks, it can be known in time, which is conducive to taking maintenance measures in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0034] Figure 1 It is a structural schematic diagram of a specific embodiment of the multi-flow path constant flow hose connection and distribution device provided by the utility model.

[0035] Figure 1 middle:

[0036] 1 is the main flow path; 101 is the return flow path; 102 is the inlet flow path; 2 is the first branch; 3 is the second branch; 4 is the flow regulating flow path; 5 is the inlet end pipeline; 6 is the first flow meter; 7 is the liquid taking port; 8 is the quick chuck; 9 is the hose section; 10 is the reserved port for the actual measurement point; 11 is the third stop valve; 12 is the reserved interface; 13 is the automatic exhaust valve; 14 is the dry cooler; 15 is the axial flow fan; 16 is the three-way valve; 17 is the expansion tank; 18 is the first temperature sensor; 19 is the first pressure sensor; 20 is the filter; 21 is the second pressure sensor 22 is a variable frequency water pump; 23 is a third pressure sensor; 24 is a drain valve; 25 is a safety valve; 26 is a pipe heater; 27 is a second temperature sensor; 28 is a liquid leakage detection device; 29 is a liquid supply device; 291 is a liquid replenishing port; 292 is a first liquid level sensor; 293 is a liquid replenishing tank; 294 is a second liquid level sensor; 295 is a quick connector; 296 is a liquid replenishing pump; 297 is a one-way valve; 30 is a first stop valve, 31 is a first electric two-way valve, 32 is a second stop valve, 33 is a second flow meter, and 34 is a second electric two-way valve. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] The core of the utility model is to provide a multi-flow path constant flow hose connection and distribution device, and whether the hose is leaking can be found in time through a liquid leakage detection device.

[0039] The present specific embodiment discloses a multi-flow path constant flow hose connection and distribution device, comprising a liquid supply device 29, a main flow path 1, a plurality of first branches 2, a second branch 3 arranged in parallel, and a liquid leakage detection device 28, wherein the liquid leakage detection device 28 is located in a detection area where liquid leakage information of a hose segment 9 can be obtained, and is used to detect whether the hose segment 9 is leaking; the detection area where liquid leakage information of the hose segment 9 can be obtained mentioned here can specifically be a certain area on the hose segment 9, or a certain area that is attached to or close to the hose segment 9, or a region where image information of the hose segment 9 can be obtained, or other positions that meet the requirements; wherein the liquid leakage detection device 28 can include a shooting device and a water immersion sensor, or a liquid leakage detection device. The measuring device 28 may also be other structures that meet the requirements, which are determined according to actual conditions. The main flow path 1 includes a liquid inlet flow path 102 and a liquid return flow path 101, and the liquid supply device 29 provides liquid for the main flow path 1; one end of a plurality of first branches 2 arranged in parallel is connected to the liquid inlet flow path 102, and the other end is connected to the liquid return flow path 101; the same first branch 2 includes a plurality of second branches 3 arranged in parallel, one end of the second branch 3 is connected to the liquid inlet end of the first branch 2, and the other end is connected to the liquid outlet end of the first branch 2; and the second branch 3 is provided with a hose section 9; the shooting device is used to obtain image information of the hose section 9; the water immersion sensor is arranged on the hose section 9, and is used to detect whether the hose section 9 is leaking.

[0040] It should be noted that the water immersion sensor mentioned in this specific embodiment can be a water immersion rope or other sensors that meet the requirements. During specific use, the water immersion rope is arranged under the hose section 9. When the hose section 9 leaks, the water immersion rope can detect the leakage position and accurately locate it.

[0041] The photographing device can be arranged near the position of the hose segment 9. It only needs to be arranged toward the hose segment 9 and can obtain image information of the hose segment 9. The photographing device is mainly used to take pictures of the hose segment 9 and obtain picture information of the hose segment 9, and send the picture information to the controller. The controller obtains the shape, position, etc. of the hose segment 9 according to the picture information, and determines whether the hose segment 9 is damaged or leaking.

[0042] Of course, the photographing device here can also be used to photograph all the pipelines in the entire multi-channel constant flow hose connection and distribution device, and process the photographed image information in different areas to determine whether there is damage to the pipelines at different locations.

[0043] It should be further explained that the flow of the second branch 3 comes from the first branch 2, is connected in series with the first branch 2, and finally converges to the main flow 1. The flow of the first branch 2 comes from the main flow 1, is connected in series with the main flow 1, and finally converges to the main flow 1.

[0044] In the process of using the multi-channel constant flow hose provided in this specific embodiment to connect the distribution device, the liquid enters the first branch 2 from the liquid inlet flow path 102, and enters the second branch 3 from the first branch 2, flows out from the second branch 3 and enters the outflow end of the first branch 2, and the liquid flowing out of the first branch 2 enters the liquid return flow path 101, and the liquid return flow path 101 is connected to the liquid inlet flow path 102 to realize the circulation of the liquid.

[0045] During use, the image information of the hose section 9 is obtained through the shooting device, and the shape and size of the hose are judged based on the image information. When the hose is broken or damaged, it can be discovered in time. In addition, the water immersion sensor is used to detect whether the hose section 9 is leaking. When leakage occurs, it can be known in time, which is conducive to timely taking maintenance measures.

[0046] like Figure 1 As shown, in the case where a plurality of first branches 2 are provided, and each first branch 2 is provided with a plurality of second branches 3, the number of second branches 3 in working state can be selected according to actual needs, and a reserved opening can be provided. The reserved opening here means that the hose segment 9 is not temporarily provided at the position where the hose segment 9 is originally required to be connected, and sufficient interfaces are reserved for adding the hose segment 9 in the future through the reserved opening.

[0047] In addition, it should be noted that the hose segment 9 mentioned in the present application document may be a length-adjustable segment, and the length of the hose segment 9 may be changed by setting the pipeline in the second branch 3 as a detachable pipeline or by changing the shape of the hose segment 9 .

[0048] Generally, the hose segments 9 in the second branches 3 connected to the same first branch 2 have the same diameter and the same length to achieve the same flow path, ensuring that the resistance in different second branches 3 in the same first branch 2 is the same and the flow distribution is uniform; the hose segments 9 in the second branches 3 connected to different first branches 2 can have different diameters and different lengths, which are determined according to actual conditions and will not be elaborated here.

[0049] The hose in the hose section 9 mentioned in this application document can be a metal hose or a non-metallic hose, and the pipe diameter covers standard sizes and non-standard sizes. The length of the pipeline can be selected according to needs, generally less than 1m. The number of pipelines is mainly used to ensure the reliability of the test results and reduce the errors caused by randomness. The number is generally greater than or equal to 2 and less than or equal to 5. Common working fluids must include chilled water, deionized water, ethylene glycol aqueous solution, propylene glycol aqueous solution, etc. The hose section 9 is usually a high temperature and high pressure working condition. For metal bellows, the operating temperature can be set to 75℃-95℃, the flow rate can be set to 3m / s-5m / s, and the operating pressure can be set to less than or equal to 8bar.

[0050] In a specific embodiment, if Figure 1 As shown, the second branch 3 is provided with a quick chuck 8, and the quick chuck 8 is used to connect the hose section 9 to the second branch 3; specifically, two quick chucks 8 can be provided on the second branch 3. In actual use, when the hose section 9 needs to be installed, the two ends of the hose section 9 can be quickly connected to the second branch 3 through the quick chuck 8, or the hose section 9 can be quickly disassembled, which is beneficial to improving work efficiency; of course, the quick chuck 8 can also be replaced by other quick-release structures, which is determined according to actual conditions and will not be elaborated here.

[0051] Furthermore, a first stop valve 30 is provided at both the inlet and outlet ends of the second branch 3. During specific use, the flow path of the second branch 3 can be cut off by closing the first stop valve 30. When the hose section 9 needs to be disassembled or repaired, the first stop valve 30 needs to be closed.

[0052] A measurement point reserved port 10 is provided between the first stop valve 30 and the quick chuck 8, and the measurement point reserved port 10 is used to provide a reserved interface 12 for equipment installation, which is used for subsequent setting of pressure, temperature, flow and other sensors to enhance the system's applicability and scalability.

[0053] In addition, a liquid intake port 7 is provided in the second branch 3, and the liquid intake port 7 is provided at the connection between the second branch 3 and the first branch 2; the liquid flowing out of the liquid intake port 7 can be directly discharged to the liquid intake tank or flow back to the liquid supply device 29 through the connecting pipeline.

[0054] The liquid taking port 7 in this specific embodiment is not only convenient for manually extracting liquid samples, but also can be used as a liquid discharge port. When the hose section 9 leaks and needs to be replaced, the liquid can be drained through the manual liquid taking port 7. The liquid taking port 7 mentioned here can be a manual liquid taking port 7 or an electric liquid taking port 7, which is determined according to actual conditions and will not be described in detail here.

[0055] In a specific embodiment, the liquid inlet end of the first branch 2 is provided with a first flow meter 6, a first electric two-way valve 31, and a second stop valve 32 in sequence from the end close to the liquid inlet flow path 102 to the end close to the second branch 3, and the liquid outlet end of the first branch 2 is provided with a third stop valve 11;

[0056] Among them, the first flow meter 6 is used to measure the real-time flow of the first branch 2, and upload the data to the control system to adjust the opening of the first electric two-way valve 31. The first electric two-way valve 31 is automatically adjusted by the control system by adjusting the valve opening to accurately adjust the flow of the first branch 2. The third stop valve 11 and the third stop valve 11 are manually opened before the operation starts. When pipeline maintenance or manual control of branch flow is required, it can be manually controlled.

[0057] In addition, the first branch 2 needs to be insulated, on the one hand to prevent burns, and on the other hand to prevent heat dissipation in the pipeline and reduce system energy consumption.

[0058] It should be noted that the first stop valve 30, the second stop valve 32 and the third stop valve 11 mentioned in the present application document can be manual stop valves or other valve body structures that meet the requirements, which are determined according to actual conditions and will not be described in detail here. The first stop valve 30, the second stop valve 32 and the third stop valve 11 can be manual ball valves or manual butterfly valves.

[0059] In a specific embodiment, the multi-channel constant flow hose connection distribution device also includes a flow regulating channel 4, one end of the flow regulating channel 4 is connected to the liquid inlet channel 102, and the other end is connected to the liquid return channel 101, and the flow regulating channel 4 is provided with a second electric two-way valve 34.

[0060] It needs to be explained that if Figure 1 As shown, the second electric two-way valve 34 in the flow regulating flow path 4 is generally in a normally closed state, and the flow of the first branch 2 can be controlled by adjusting the speed of the variable frequency water pump 22 in the liquid inlet flow path 102. When the speed of the variable frequency water pump 22 is adjusted to the lowest and the flow of the first branch 2 is still too large, the second electric two-way valve 34 can be controlled to switch to an open state. The specific opening needs to be determined based on actual conditions, which will not be elaborated here.

[0061] The flow regulating flow path 4 is connected in parallel to the main flow path 1, and the flow regulating flow path 4 is provided with a second electric two-way valve 34 for adjusting the diversion and pressure division; when the flow demand of the first branch 2 pipeline is small, the minimum operating frequency flow of the variable frequency pump still exceeds the demand, and the excess flow will be diverted through the flow regulating flow path 4, and the second electric two-way valve 34 automatically adjusts the bypass branch flow to maintain the normal operation of the system.

[0062] In a specific embodiment, the multi-channel constant flow hose connection and distribution device also includes a refrigeration system and a three-way valve 16 arranged in the return liquid flow path 101, the first end of the three-way valve 16 is connected to the liquid inlet end pipeline 5 of the refrigeration system, the second end of the three-way valve 16 is connected to the liquid outlet end pipeline of the refrigeration system, and the third end of the three-way valve 16 is connected to the connecting section of the return liquid flow path 101 and the liquid inlet flow path 102.

[0063] During specific use, when the temperature of the liquid in the pipeline is higher than the maximum value of the preset temperature, the first end of the three-way valve 16 is connected to the third end, so that the liquid flows through the refrigeration system to cool down and then flows back to the liquid inlet path 102; when the temperature of the liquid in the pipeline is lower than the minimum value of the preset temperature, the second end of the three-way valve 16 is connected to the third end, so that the liquid flows directly back to the liquid inlet path 102.

[0064] Specifically, the refrigeration system may include a dry cooler 14 and an axial flow fan 15 for cooling the dry cooler 14 . The liquid inlet and the liquid outlet of the dry cooler 14 are both connected to the liquid return path 101 .

[0065] The dry cooler 14 can be a tube-fin heat exchanger or a parallel flow heat exchanger with high heat exchange efficiency. The axial flow fan 15 can be replaced by a centrifugal fan, which can be selected according to design requirements. The three-way valve 16 can adjust the ratio of the hot fluid flow rate flowing into the main flow path 1 and the cold fluid flow rate flowing through the dry cooler 14, so that the temperature of the main flow path out of the pipeline is reduced, which plays a cooling role.

[0066] Of course, the refrigeration system can also be other refrigeration structures that meet the requirements, which is determined based on actual conditions.

[0067] In a specific embodiment, the liquid inlet flow path 102 is provided with a liquid replenishment point, and the liquid supply device 29 is connected to the liquid replenishment point; the liquid inlet flow path 102 before the liquid replenishment point is provided with a first temperature sensor 18, a first pressure sensor 19 and an expansion tank 17; the liquid inlet flow path 102 after the liquid replenishment point is provided with a filter 20, a second pressure sensor 21, a variable frequency water pump 22, a third pressure sensor 23, a drain valve 24, a safety valve 25, a pipe heater 26, and a second temperature sensor 27 in sequence. In addition, as Figure 1 As shown, a second flow meter 33 and an automatic exhaust valve 13 are provided at the front end of the liquid inlet end pipeline 5 of the refrigeration system in the liquid return flow path 101.

[0068] Among them, the drain valve 24 is used to drain the pipeline. When the system is not running, it needs to drain the liquid to prevent the pipeline from freezing. It is generally set at the lowest point of the system. The pressure sensor is used to test the pipeline pressure. Through the pressure size and the sensor pressure difference size, it can be judged whether the water pump is operating normally, whether the system is short of liquid, and whether the filter 20 is dirty and blocked. Among them, the first pressure sensor 19 is used to measure the pressure in the pipeline before the main flow 1 is replenished. When the pressure information detected by the first pressure sensor 19 is less than the preset minimum pressure value, the liquid supply device 29 is controlled to replenish the liquid at the replenishment point. When the pressure information detected by the first pressure sensor 19 is greater than the preset minimum pressure value and less than the preset maximum pressure, the liquid supply device 29 is controlled not to replenish the liquid at the replenishment point; when the pressure in the pipeline is greater than the preset maximum pressure, it is necessary to drain the liquid through the drain valve 24.

[0069] The liquid supply device 29 is composed of a liquid replenishing tank 293 and a liquid replenishing pump 296, which has an automatic liquid replenishing function, and is equipped with a high and low liquid level sensor for full liquid and liquid shortage alarm functions, which is convenient for daily maintenance. Specifically, the liquid supply device 29 includes: a liquid replenishing tank 293, which is provided with a liquid replenishing port 291 and a quick connector 295, wherein: a first liquid level sensor 292 is arranged at a preset maximum liquid level in the liquid replenishing tank 293; a second liquid level sensor 294 is arranged at a preset minimum liquid level in the liquid replenishing tank 293; a liquid replenishing pipeline, one end of which is connected to the quick connector 295, and the other end is connected to the liquid inlet flow path 102, and the liquid replenishing pipeline is provided with a liquid replenishing pump 296 and a one-way valve 297, and the one-way valve 297 can prevent liquid reflux during the liquid replenishing process.

[0070] In addition, a second pressure sensor 21 and a third pressure sensor 23 are provided, wherein the second pressure sensor 21 is used to detect the pressure at the liquid inlet of the variable frequency water pump 22 , and the third pressure sensor 23 is used to detect the pressure at the liquid outlet of the variable frequency water pump 22 .

[0071] The filter 20 is used to filter liquid impurities and maintain the normal operation of the system. Manual stop valves are set before and after the filter 20 to facilitate daily maintenance. The variable frequency water pump 22 provides a certain head and flow for the main line, and can automatically adjust the power frequency according to the branch flow size, which is energy-saving and efficient. The expansion tank 17 is used to maintain the system pressure to avoid the instantaneous water hammer effect when the system starts or closes the valve and the change of system pressure caused by thermal expansion and contraction. The pipe heater 26 is connected in series in the main flow 1, and the heating power can be adjusted according to the heating demand, the heating time can be reduced, the test efficiency can be improved, and the test requirements under outdoor or cold conditions can be met; the specific temperature in the pipeline can be measured by the first temperature sensor 18 and the second temperature sensor 27, wherein the first temperature sensor 18 detects the liquid temperature in the main flow 1 before the pipe heater 26 is heated, and the second temperature sensor 27 detects the liquid temperature in the main flow 1 after the heater is heated.

[0072] The safety valve 25 is used to release the pressure in time when the system pressure exceeds the set pressure to ensure the safe operation of the system. The automatic exhaust valve 13 is set at the highest point of the system to remove the excess gas in the pipeline and maintain the stability of the system flow in the pipeline; the main pipeline is insulated, specifically, rubber insulation cotton or other insulation materials that meet the requirements can be set.

[0073] In the process of using the multi-channel constant flow hose disclosed in the above embodiment to connect the distribution device, the specific steps are as follows:

[0074] The first step is to obtain the leakage information detected by the leakage detection device 28;

[0075] The second step is to determine whether the hose section 9 is leaking according to the leakage information. If so, close the liquid inlet and outlet of the second branch where it is located. If not, end the process.

[0076] When the liquid leakage detection device 28 includes a camera and a water immersion sensor, the camera is used to obtain image information of the hose segment 9; the water immersion sensor is arranged on the hose segment 9 and is used to detect whether the hose segment 9 is leaking; in the process of using the multi-channel constant flow hose connection distribution device disclosed in the above embodiment, the specific steps are as follows:

[0077] The first step is to obtain the detection information transmitted by the water immersion sensor;

[0078] In the first step above, when the hose section 9 leaks, the water immersion sensor can accurately measure the location of the leaking point and transmit the detection information to the control system in a timely manner;

[0079] The second step is to determine whether the hose section 9 is leaking according to the detection information; if so, close the liquid inlet and outlet of the second branch 3 where it is located; if not, proceed to the next step;

[0080] In the second step, when the hose section 9 is detected to be leaking, the corresponding second stop valve 32 in the first branch 2 may be closed first. The detection information may also be uploaded to the user client in real time while the corresponding second stop valve 32 in the first branch 2 is closed. Specifically, the data may be transmitted through an RS485 / RS232 interface (data cable), or uploaded to a cloud platform through 4G / WiFi.

[0081] The third step is to obtain image information captured by the camera;

[0082] In the third step, the image information mentioned here needs to be sent to the control system.

[0083] The fourth step is to determine whether the hose section 9 is damaged according to the image information. If so, close the liquid inlet and outlet of the second branch 3 photographed by it; if not, end.

[0084] In the fourth step, the control system can find out whether the shape of the hose section 9 is intact or damaged based on the image information, pre-stored data, and program. In some cases, it can also judge whether there is leakage. When it is detected that the hose section 9 is damaged, the liquid inlet and outlet of the second branch 3 photographed by it can be closed, or the second stop valve 32 of the first branch 2 corresponding to the second branch 3 can be closed. It is also possible to upload the detection information to the user client in real time while closing the corresponding second stop valve 32 in the first branch 2. Specifically, data can be transmitted through the RS485 / RS232 interface (data cable), or uploaded to the cloud platform through 4G / WiFi.

[0085] against Figure 1 The multi-channel constant flow hose is connected to the distribution device. The specific temperature control steps are as follows:

[0086] The first step is to obtain the first temperature information measured by the first temperature sensor 18;

[0087] The second step is to determine whether the first temperature information is less than the minimum value of the preset temperature, if so, proceed to the third step, if not, proceed to the fourth step;

[0088] The third step is to control the pipeline heater 26 to heat and obtain the second temperature information measured by the second temperature sensor 27 until the second temperature information is greater than or equal to the minimum value of the preset temperature and less than or equal to the maximum value of the preset temperature;

[0089] The fourth step is to determine whether the first temperature information is greater than the maximum value of the preset temperature. If so, the refrigeration system is controlled to cool the liquid in the main flow path 1, and the second temperature information measured by the second temperature sensor 27 is obtained until the second temperature information is greater than or equal to the minimum value of the preset temperature and less than or equal to the maximum value of the preset temperature; if not, the current state of the pipe heater 26 and the refrigeration system is maintained.

[0090] For example Figure 1 The multi-channel constant flow hose shown is connected to the distribution device. The specific flow adjustment steps are as follows:

[0091] The first step is to obtain the first flow information detected by the first flow meter 6;

[0092] The second step is to determine whether the first flow information is less than the minimum value of the preset flow. If so, the variable frequency water pump 22 is controlled to increase the speed until the first flow information is greater than or equal to the minimum value of the preset flow and less than or equal to the maximum value of the preset flow. If not, the process proceeds to the third step.

[0093] The third step is to determine whether the first flow information is greater than the maximum value of the preset flow. If so, control the variable frequency water pump 22 to reduce the speed until the first flow information is greater than or equal to the minimum value of the preset flow and less than or equal to the maximum value of the preset flow; if not, maintain the current speed of the variable frequency water pump 22.

[0094] When the variable frequency water pump 22 is adjusted to the minimum speed, the first flow information is still greater than the maximum value of the preset flow, and the second electric two-way valve 34 in the flow regulating flow path 4 is controlled to open.

[0095] Each embodiment in this specification is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referenced to each other. Any combination of all embodiments provided by the utility model is within the protection scope of this utility model and will not be described in detail here.

[0096] The above is a detailed introduction to the multi-channel constant flow hose connection and distribution device provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the utility model.

Claims

1. A multi-channel constant flow hose connection and distribution device, characterized in that: include: The main flow path (1) comprises a liquid inlet flow path (102) and a liquid return flow path (101); A plurality of first branches (2) arranged in parallel, wherein one end of the first branch (2) is connected to the liquid inlet flow path (102), and the other end of the first branch (2) is connected to the liquid return flow path (101); a second branch (3), wherein the first branch (2) comprises a plurality of second branches (3) arranged in parallel, one end of the second branch (3) being connected to the liquid inlet end of the first branch (2), and the other end of the second branch (3) being connected to the liquid outlet end of the first branch (2); and the second branch (3) being provided with a hose section (9); The liquid leakage detection device (28) is located in a detection area where liquid leakage information of the hose section (9) can be obtained, and is used to detect whether the hose section (9) is leaking.

2. The multi-channel constant flow hose connection and distribution device according to claim 1, characterized in that: The liquid leakage detection device (28) comprises: A photographing device, used for acquiring image information of the hose section (9); A water immersion sensor is arranged on the hose section (9) and is used to detect whether the hose section (9) is leaking liquid.

3. The multi-channel constant flow hose connection and distribution device according to claim 1, characterized in that: The second branch (3) is provided with a quick-release chuck (8), and the quick-release chuck (8) is used to connect the hose section (9) to the second branch (3).

4. The multi-channel constant flow hose connection and distribution device according to claim 3, characterized in that: Two first stop valves (30) are provided in any of the second branches (3), and the two first stop valves (30) are respectively provided at two ends of the hose section (9); And / or, a measured point reserved opening (10) is provided between the first stop valve (30) and the quick chuck (8), and the measured point reserved opening (10) is used to provide a reserved interface (12) for equipment installation.

5. The multi-channel constant flow hose connection and distribution device according to claim 3, characterized in that: The second branch (3) is provided with a liquid intake port (7), and the liquid intake port (7) is arranged at the connection between the second branch (3) and the first branch (2); The liquid flowing out of the liquid intake port (7) can be directly discharged into the liquid intake box or flow back to the liquid supply device (29) through a connecting pipeline.

6. The multi-channel constant flow hose connection and distribution device according to claim 1, characterized in that: The liquid inlet end of the first branch (2) is provided with a first flow meter (6), a first electric two-way valve (31), and a second stop valve (32) in sequence from the end close to the liquid inlet flow path (102) to the end close to the second branch (3), and the liquid outlet end of the first branch (2) is provided with a third stop valve (11).

7. The multi-channel constant flow hose connection and distribution device according to any one of claims 1 to 6, characterized in that: It also comprises a flow regulating flow path (4), one end of which is connected to the liquid inlet flow path (102) and the other end is connected to the liquid return flow path (101), and the flow regulating flow path (4) is provided with a second electric two-way valve (34).

8. The multi-channel constant flow hose connection and distribution device according to claim 5, characterized in that: It also includes a refrigeration system and a three-way valve (16) arranged in the liquid return flow path (101), wherein a first end of the three-way valve (16) is connected to a liquid inlet pipeline (5) of the refrigeration system, a second end of the three-way valve (16) is connected to a liquid outlet pipeline of the refrigeration system, and a third end of the three-way valve (16) is connected to a connecting section of the liquid return flow path (101) with the liquid inlet flow path (102).

9. The multi-channel constant flow hose connection and distribution device according to claim 8, characterized in that: The liquid inlet flow path is provided with a liquid replenishing point, and the liquid supply device (29) is connected to the liquid replenishing point; The liquid inlet flow path before the liquid replenishment point is provided with a first temperature sensor (18), a first pressure sensor (19) and an expansion tank (17); The liquid inlet flow path after the liquid replenishment point is provided with a filter (20), a second pressure sensor (21), a variable frequency water pump (22), a third pressure sensor (23), a drain valve (24), a safety valve (25), a pipeline heater (26), and a second temperature sensor (27) in sequence.

10. The multi-channel constant flow hose connection and distribution device according to claim 5, characterized in that: The liquid supply device (29) comprises: A liquid replenishing box (293) provided with a liquid replenishing port (291) and a quick connector (295); A first liquid level sensor (292) is arranged at a preset maximum liquid level in the liquid replenishing tank (293); A second liquid level sensor (294) is arranged at a preset minimum liquid level in the liquid replenishing tank (293); A liquid infusion pipeline, one end of which is connected to the quick connector (295) and the other end of which is connected to the liquid inlet flow path, and the liquid infusion pipeline is provided with a liquid infusion pump (296) and a one-way valve (297).

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