CN219736737U - Multisystem combined pressure testing device - Google Patents

Abstract

The utility model provides a multi-system combined pressure test device which is used for carrying out pressure test on a pipeline, and comprises a circulation supply device, wherein the circulation supply device comprises a pressure test medium storage box, a pressure supply part and a conveying pipeline, the pressure test medium storage box comprises an outlet and an inlet, the first end of the conveying pipeline is connected with the outlet, the second end of the conveying pipeline is connected with the inlet, the pressure supply part is arranged on the conveying pipeline and is close to the outlet, the conveying pipeline is provided with a plurality of branch ports, and the branch ports are arranged between the pressure supply part and the inlet; the test tube sets are connected with the branch ports, the number of the test tube sets is multiple, and the test tube sets and the branch ports are arranged in a one-to-one correspondence mode. The multi-system combined pressure testing device can save the site space, reduce the cost of the device, greatly improve the repetition rate of pressure testing medium utilization, realize simultaneous pressure testing on multiple systems or pipelines, save the construction period of the pressure testing pipelines, and further achieve the purposes of energy conservation, emission reduction and green construction.

Description

Multisystem combined pressure testing device

Technical Field

The utility model relates to the technical field of pipeline pressure test, in particular to a multi-system combined pressure test device.

Background

Petrochemical industry and power plant construction are one of the supporting industries in manufacturing industry, and if petrochemical industry and power plant construction devices are compared with life, various pipelines are water flowing in life, and conveyed media are nutrients.

Wherein the pipeline installation plays a great role in petrochemical industry, power plant production and operation. As a plurality of conveying media in the device are high-risk, high-pressure, inflammable, explosive and toxic substances. Therefore, in the engineering construction of petrochemical industry and power plant related devices, various pipelines are required to be installed strictly according to the specifications and standards, the quality of the pipelines is ensured, and the accidents of leakage of the pipelines are avoided. In the process of pipeline acceptance, pipeline pressure test needs to be carried out, and meanwhile tightness of a process pipeline system is guaranteed, which is an important and indispensable key program for pipeline system inspection. Pipeline pressure tests include strength tests and tightness tests, among others, to verify that the pipeline system being tested is tight, leak-free and systematic. The existing test method has the defects that the number of pipelines and systems in the device is large, the construction period of single pressure test one by one is long, the pressure test cannot be performed once for multiple pressure grades, and the pressure test medium cannot be repeatedly used in a circulating way after single pressure test, so that the resource waste can be caused.

Therefore, there is a need to design a device that can realize multiple system pressure test to solve the above-mentioned problems.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a multi-system combined pressure testing device, which effectively solves the problems that the prior pressure testing device has a longer pressure testing construction period, multiple pressure grades cannot be tested at one time, and pressure testing mediums cannot be used repeatedly in a circulating and reciprocating mode.

The utility model provides a multi-system combined pressure test device which is used for carrying out pressure test on a pipeline, wherein the multi-system combined pressure test device comprises a circulating supply device, a pressure test medium storage box, a pressure supply part and a conveying pipeline, wherein the pressure test medium storage box comprises an outlet and an inlet, a first end of the conveying pipeline is connected with the outlet, a second end of the conveying pipeline is connected with the inlet, the pressure supply part is arranged on the conveying pipeline and is close to the outlet, the conveying pipeline is provided with a plurality of branch ports, and the branch ports are arranged between the pressure supply part and the inlet; the test tube sets are connected with the branch ports, the number of the test tube sets is multiple, and the test tube sets and the branch ports are arranged in a one-to-one correspondence mode.

Preferably, the conveying pipeline comprises an output part, a pressure test part and a backflow part, wherein the output part is communicated with the backflow part through the pressure test part, the end part of the output part is a first end of the conveying pipeline, and the end part of the backflow part is a second end of the conveying pipeline; the plurality of branch ports are arranged on the pressure test part.

Preferably, the pressure supply part is arranged at the pressure test part, the pressure supply part comprises a pressure test pump, and the pressure test part is arranged at the pressure test part; a check valve provided between the pressure test pump and the branch port; and the first control valve is arranged between the check valve and the branch port.

Preferably, the pressure supply part further comprises a first connection hose arranged between the outlet and the pressure test pump; the second connecting hose is arranged between the pressure testing pump and the branch port; the first pressure gauge is arranged between the pressure testing pump and the first connecting hose; the second pressure gauge is arranged between the second connecting hose and the branch port; the filter is arranged between the outlet and the first pressure gauge.

Preferably, the multi-system combined pressure test device further comprises a cleaning port, the cleaning port is connected with the conveying pipeline, the cleaning port comprises a blow-down valve and a blow-down valve, and the blow-down valve are arranged between the output part and the backflow part.

Preferably, the test tube group comprises a test tube, a first end of the test tube is connected with the branch port, and a second end of the test tube is connected with the pipeline; and the detection assembly is arranged on the test pipeline.

Preferably, the test pipeline comprises a main pipeline and a first branch pipe, the detection assembly comprises a pressure detection part and a flow detection part, and the pressure detection part is arranged on the first branch pipe; the flow detection part is arranged on the main pipeline.

Preferably, the pressure detecting part includes a third pressure gauge and a second control valve, the second control valve is disposed at the first branch pipe, and the third pressure gauge is disposed at an end of the first branch pipe; the flow detection portion comprises a flow meter and a third control valve, and the third control valve and the flow meter are both arranged between the first end of the test pipeline and the second end of the test pipeline.

Preferably, the return portion is provided with a combination valve.

Preferably, the pressure test medium storage tank is provided with a liquid level meter.

According to the multi-system combined pressure test device, reasonable arrangement can be carried out according to different environments of different sites, site space is saved, existing elements can be utilized by all parts of components, device cost expenditure is reduced, the repetition rate of pressure test medium utilization is greatly improved, simultaneous pressure test can be realized on multiple systems or pipelines, the construction period of the pressure test pipeline is saved, and therefore energy conservation, emission reduction and green construction are achieved.

In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing the structure of a multi-system joint pressure test device or the like according to an embodiment of the present utility model;

FIG. 2 illustrates a top view of a multi-system joint pressure test device according to an embodiment of the present utility model;

FIG. 3 illustrates a functional schematic of a multi-system joint pressure test device according to an embodiment of the present utility model;

fig. 4 is a schematic view showing still another structure of the multi-system combined pressure test device according to the embodiment of the present utility model.

Reference numerals: 1-a circulation supply device; 101-a pressure test medium storage tank; 102-a pressure test pump; 103-check valve; 104-a first control valve; 105-a first connection hose; 106-a second connection hose; 107-a first pressure gauge; 108-a second pressure gauge; 109-a filter; 2-testing tube sets; 201-main pipeline; 202-a first branch pipe; 203-a third pressure gauge; 204-a second control valve; 205-a flow meter; 206-a third control valve; 207-combination valve; 208-a reflux unit; 209-high pressure hose; 3-cleaning the port; 301-a blow-down valve; 302-a blow-down valve.

Detailed Description

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, apparatus, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatuses, and/or systems described herein will be apparent after an understanding of the present disclosure. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but rather, obvious variations may be made upon an understanding of the present disclosure, other than operations that must occur in a specific order. In addition, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.

The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided solely to illustrate some of the many possible ways of implementing the methods, devices, and/or systems described herein that will be apparent after understanding the present disclosure.

In the entire specification, when an element (such as a layer, region or substrate) is described as being "on", "connected to", "bonded to", "over" or "covering" another element, it may be directly "on", "connected to", "bonded to", "over" or "covering" another element or there may be one or more other elements interposed therebetween. In contrast, when an element is referred to as being "directly on," directly connected to, "or" directly coupled to, "another element, directly on," or "directly covering" the other element, there may be no other element intervening therebetween.

As used herein, the term "and/or" includes any one of the listed items of interest and any combination of any two or more.

Although terms such as "first," "second," and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first member, component, region, layer or section discussed in examples described herein could also be termed a second member, component, region, layer or section without departing from the teachings of the examples.

For ease of description, spatially relative terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "upper" relative to another element would then be oriented "below" or "lower" relative to the other element. Thus, the term "above … …" includes both orientations "above … …" and "below … …" depending on the spatial orientation of the device. The device may also be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. Singular forms also are intended to include plural forms unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" are intended to specify the presence of stated features, integers, operations, elements, and/or groups thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, and/or groups thereof.

Variations from the shapes of the illustrations as a result, of manufacturing techniques and/or tolerances, are to be expected. Accordingly, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shapes that occur during manufacture.

The features of the examples described herein may be combined in various ways that will be apparent upon an understanding of the present disclosure. Further, while the examples described herein have a variety of configurations, other configurations are possible as will be apparent after an understanding of the present disclosure.

According to the multi-system combined pressure testing device provided by the utility model, as shown in fig. 1 to 4, the multi-system combined pressure testing device can be used for testing pressure of multiple pipelines, multiple systems and multiple pressure levels, and the problems that the pipelines are dense, the pressure levels are multiple, the pipe diameters are multiple and the like in the prior device area, the pressure testing construction period is long, the pressure testing level cannot be used for testing pressure once, and a pressure testing medium cannot be used repeatedly and repeatedly in a circulating mode are solved. The multi-system combined pressure test device comprises a circulation supply device 1 and a test tube group 2.

In the following description, detailed structures of the circulation supply device 1 and the test tube group 2 of the multi-system combined pressure test device will be specifically described with reference to fig. 1 to 4.

As shown in fig. 1 to 3, in the embodiment, the circulation supply device 1 is used for supplying a pressure test medium to a pipeline to be tested, so as to test the pressure of the pipeline built in petrochemical industry and power plants. The pressure test medium may be, for example, clean water or desalinated water, etc. The circulation supply device 1 may include a pressure test medium storage tank 101, a pressure supply portion, and a delivery pipe. Specifically, the pressure test medium storage tank 101 is used for storing pressure test medium, the pressure test medium storage tank 101 is provided with an outlet and an inlet, the outlet is connected to a first end of a conveying pipeline, the inlet is connected to a second end of the conveying pipeline, the conveying pipeline is used as a circulation channel of the pressure test medium, and the pressure test medium conveying and recycling functions are achieved in the whole device. The conveying pipeline is provided with a plurality of branch ports, the branch ports are used for connecting the testing tube group 2, pressure testing mediums flow into the conveying pipeline through the outlet, enter the testing tube group 2 through the branch ports, and are recycled to the pressure testing medium storage box 101 through the conveying pipeline after pressure testing is completed, so that cyclic utilization is completed. The pressure supply part is used for providing pressure so that the pressure test medium can circulate from the outlet to the inlet in the conveying pipeline. The test tube group 2 is used for being communicated with a pipeline to be tested, and the test tube group 2 is communicated with a plurality of branch ports of the conveying pipeline, so that the number of the test tube groups 2 is also a plurality of, and the plurality of test tube groups 2 are in one-to-one correspondence with the plurality of branch ports. Here, the number of use of the test tube group 2 may be specifically selected according to the number of pipes to be tested, and may be one, two, three, four, five, six or more. Preferably, the transfer line may be, for example, a seamless steel pipe.

Specifically, as shown in fig. 1 to 3, in one embodiment, the conveying pipeline may include an output portion, a pressure test portion and a return portion 208, where the conveying portion is connected to an outlet of the pressure test medium storage tank 101 for conveying the pressure test medium, the pressure test portion is connected to the conveying portion for carrying the pressure supply portion, and the return portion 208 is connected to an inlet of the pressure test medium storage tank 101 for returning the pressure test medium after the pressure test is completed to the pressure test medium storage tank 101.

Specifically, as shown in fig. 1 to 3, in one embodiment, the pressure supply portion is installed at a pressure test portion of the conveying pipeline, and the pressure supply portion may include a pressure test pump 102, a check valve 103 and a first control valve 104, where the pressure test pump 102 may be, for example, a pipeline booster pump in the prior art, for example, an ISG/IHG type vertical pipeline centrifugal pump of a well-established pump industry manufacturer. The pressure test pump 102 may pressurize the delivery line so that the pressure test medium enters the delivery line from the pressure test medium storage tank 101 and then enters the test tube group 2 to test the pressure of the pipeline. The check valve 103 is installed on the delivery pipe and disposed between the pressure test pump 102 and the branch port, and the check valve 103 can function to prevent backflow of the pressure test medium so that the pressure test medium in the delivery pipe flows in a certain direction (i.e., flows out from the outlet of the pressure test medium storage tank 101, finally returns to the inlet of the pressure test medium storage tank 101 via the delivery pipe). The first control valve 104 is installed on the delivery pipe and disposed between the check valve 103 and the branch port, and the first control valve 104 can realize the interception of the pressure test medium.

Preferably, as shown in fig. 1 to 3, in one embodiment, the pressure supply part may further include a first connection hose 105, a second connection hose 106, a first pressure gauge 107, a second pressure gauge 108, and a filter 109. Specifically, the first connecting hose 105 and the second connecting hose 106 are respectively installed at two ends of the pressure test pump 102 (that is, the conveying pipeline of the part is replaced by a hose), the first connecting hose 105 is arranged between the outlet of the pressure test medium storage tank 101 and the pressure test pump 102, the second connecting hose 106 is arranged between the pressure test pump 102 and the branch port, and the first connecting hose 105 and the second connecting hose 106 can play a role in reducing vibration transmission of the pressure test pump 102, so that the service life is prolonged, and the conveying pipeline is protected. The first pressure gauge 107 is disposed between the pressure test pump 102 and the first connection hose 105, the second pressure gauge 108 is disposed between the second connection hose 106 and the branch port, the first pressure gauge 107 is used for measuring an initial pressure value of the pressure test medium flowing out from the outlet, the second pressure gauge 108 is used for measuring a pressure value of the pressure test medium pressurized by the pressure test pump 102, so that the pressure test pump 102 can adjust the pressurized pressure through the first pressure gauge 107 and the second pressure gauge 108, and perform real-time monitoring, and the pressure test pump 102 can also cooperate with the first pressure gauge 107 and the second pressure gauge 108 to stop pressurizing after reaching a set pressure. Furthermore, the first pressure gauge 107 and the second pressure gauge 108 may be, for example, prior art devices such as MAN-P stainless steel diaphragm pressure gauges of the cobra manufacturer. The filter 109 is provided between the first connection hose 105 and the first pressure gauge 107, and can function to filter impurities in the pressure test medium and prevent clogging of the pressure test pump 102 and inflow into the delivery pipe with the pressure test medium. The filter 109 may be, for example, a prior art device, and may be, for example, a T-filter from Shanghai plus.

Preferably, the multi-system combined pressure test device further comprises a cleaning port 3, the cleaning port 3 is connected with the conveying pipeline, the cleaning port 3 comprises a blow-down valve 301 and a blow-down valve 302, and the blow-down valve 301 and the blow-down valve 302 are arranged between the output part and the backflow part 208. Impurities and foreign matters in the equipment body can be discharged through the blow-down valve 301, and air in the conveying pipeline can be discharged through the blow-down valve 302, so that pressure test is easy. When the air release valve 302 is used, the air release valve should slowly release the pressure test medium when the pressure test medium is injected, so that air is prevented from entering the pressure test system or the pipeline, and the pressure test medium is prevented from being placed for too long time because the pressure test medium is timely released from the device, and impurities react with the air to corrode the device body. The installation position of the cleaning port 3 may be specifically selected according to the actual use environment, and may be, for example, one side end portion of the conveying pipe shown in fig. 1 to 3, or may be provided on the conveying pipe as shown in fig. 4.

Preferably, as shown in fig. 1 to 3, in one embodiment, the test tube set 2 may include a test tube and a detection assembly, a first end of the test tube being connected to the branch port, a second end of the test tube being connected to the pipe, the test tube being used for the passage of the pressure test medium; the detection component is arranged on the test tube, and can detect the flow and the pressure, so as to observe and feed back the state of the pressure-tested pipeline. Specifically, the test pipeline may include a main pipeline 201 and a first branch pipe 202, where the main pipeline 201 communicates with a pipeline under test, and the first branch pipe 202 serves as a branch of the main pipeline 201 for installing components in the detection assembly, and plays a role in separate detection. The detection assembly may include a pressure detection portion mounted to the first branch pipe 202 and a flow detection portion mounted to the main pipe 201, which may provide more accurate detection. The pressure detection part may include a third pressure gauge 203 and a second control valve 204, where the second control valve 204 is disposed at a connection portion of the first branch pipe 202 and the main pipeline 201, and controls opening and closing of the first branch pipe 202, and the third pressure gauge 203 is disposed at an end portion of the first branch pipe 202, and performs pressure detection on a pressure test medium flowing into each branch port, so as to ensure pressure stability and pressure requirement in the pressure test process. In addition, the third pressure gauge 203 may be, for example, a device of the prior art, such as a MAN-P stainless steel diaphragm pressure gauge from Kebao's manufacturer. The flow detection portion may include a flow meter 205 and a third control valve 206, where the third control valve 206 and the flow meter 205 are both disposed between the first end of the test pipeline and the second end of the test pipeline, specifically, the main pipeline 201 is provided with the flow meter 205 for measuring the water amount of the pressure test medium passing therethrough, ensuring the accuracy in the pressure test process, and the third control valve 206 is disposed between the branch port and the flow meter 205 for opening and closing each test tube group 2. Furthermore, the flow meter 205 may be, for example, a prior art device such as an LDG-MIK electromagnetic flow meter from Mi Ke manufacturer. The first control valve 104, the second control valve 204, and the third control valve 206 may be, for example, shut-off valves, ball valves, or the like, and may be selected as needed.

Preferably, as shown in fig. 1 to 3, in one embodiment, the return portion 208 of the delivery pipe is provided with a combination valve 207, and the combination valve 207 may be, for example, a combination of a stop valve and a check valve, for blocking the return portion 208 and preventing the pressure test medium in the pressure test medium storage tank 101 from flowing back to the return portion 208.

Preferably, as shown in fig. 1 to 3, in one embodiment, the pressure test medium storage tank 101 may be a 10m3 PP (polypropylene) water tank, mainly used for containing the pressure test medium. Preferably, the pressure test medium storage tank 101 may further include a level gauge (not shown) to facilitate a user's observation of the water level inside the pressure test medium storage tank 101.

The use process of the multi-system combined pressure testing device is as follows: firstly, when pressure test is performed, pressure test media are pumped into a conveying pipeline by a pressure test pump 102, enter a test tube group 2 through each branch port, finally enter a pipeline to be tested, and after the pressure test is finished, return the pressure test media in a pressure test system or the pipeline to a pressure test media storage box 101 through the test tube group 2 by the pressure test and gravity of the pipeline, or flow into the next test tube group 2 through one test tube group 2, so that the circulation of the whole device is realized.

When the pressure test device is used, for a single pressure test system or pipeline (namely, only one test tube group 2 is used), pressure test media are pumped into a conveying pipeline by the pressure test pump 102, and after the pressure test is finished, the pressure test media are returned to the pressure test media storage box 101 through the test tube group 2 and the return part 208, so that the recovery of the pressure test media is realized.

For different pressure grades (namely, the pressure in each test tube group 2 is different), a plurality of pressure test systems or pipelines (namely, a plurality of test tube groups 2 are used), when pressure test is performed, pressure test mediums enter different pressure test systems or pipelines through a plurality of branch ports, the pressure test pump 102 is used for boosting and increasing the flow in the early stage of pressure test and filling, the lift is reduced, after the pressure test mediums are filled, the pressure test mediums are boosted layer by layer from low to high pressure grades, after the pressure test mediums reach the formulated pressure of different systems, the corresponding branch ports are closed through the third control valve 206, so that the pressure test of the multiple pipelines and the pressure test systems at the same time is realized, and the next system or pipeline filling or boosting operation is not delayed during the pressure maintaining and acceptance of one system or pipeline. In addition, when the pressure of the system or pipeline with higher pressure level is tested, the system or pipeline with higher pressure level can be tested first, and after the pressure test of the system or pipeline with higher pressure level is completed, the branch port with higher pressure level can be directly led into the branch port with lower pressure level through the conveying pipeline, if the specified test pressure is not reached, the pressure can be re-boosted through the pressure test pump 102.

When pressure test is performed, the pressure test pipelines or pressure test systems are reasonably divided, uniform pressure test is performed on the same pressure level of adjacent pipelines or systems, the water consumption of each pressure test system or pipeline is calculated according to the pipe diameter and the length of the pipelines contained in the pressure test system after carding, and a plurality of test pipe groups 2 can be connected to a system with a larger pipe diameter and a longer pipe diameter. For the case that part of the pressure test system is larger, if the capacity of the water tank is insufficient, the pressure test medium can be slowly added in the pressure test process.

Furthermore, fig. 4 preferably shows another embodiment, which differs from the embodiments shown in fig. 1 to 3 in that the arrangement of the conveying lines differs, in that the conveying lines shown in fig. 4 are arranged as a whole as one circulation line, the branching openings are all arranged in the circulation, while the branching openings of the conveying lines shown in fig. 1 to 3 are arranged outside the circulation, which can be selected appropriately depending on the actual situation on site. In addition, as shown in fig. 4, a high pressure hose 209 is further installed at the end of the main pipe 201 (i.e., the end connected to the pressure test pipe), the high pressure hose 209 may be, for example, a high pressure metal hose, the end of the main pipe 201 is provided with a spinneret, the spinneret may be connected to the high pressure metal hose by a screw thread, and the other side of the high pressure metal hose is connected to the pressure test system or pipe, where the connection point suggests that the recovery of the pressure test medium is facilitated at the lowest point of the system level. The high pressure hose 209 is convenient to connect and use.

The multi-system combined pressure testing device can be reasonably arranged according to different environments of different sites, the site space is saved, the existing elements can be utilized by all parts of components, the cost expenditure of the device is reduced, the repetition rate of pressure testing medium utilization is greatly improved, simultaneous pressure testing can be realized on multiple systems or pipelines, the construction period of the pressure testing pipeline is saved, and therefore energy conservation, emission reduction and green construction are achieved.

Finally, it should be noted that: the above examples are only specific embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but it should be understood by those skilled in the art that the present utility model is not limited thereto, and that the present utility model is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model, and are intended to be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. A multi-system joint pressure test device for performing a pressure test on a pipeline, the multi-system joint pressure test device comprising:

the circulating supply device comprises a pressure test medium storage box, a pressure supply part and a conveying pipeline, wherein the pressure test medium storage box is provided with an outlet and an inlet, a first end of the conveying pipeline is connected with the outlet, a second end of the conveying pipeline is connected with the inlet, the pressure supply part is arranged on the conveying pipeline and is close to the outlet, the conveying pipeline is provided with a plurality of branch ports, and the branch ports are arranged between the pressure supply part and the inlet;

the test tube sets are connected with the branch ports, the number of the test tube sets is multiple, and the test tube sets and the branch ports are arranged in a one-to-one correspondence mode.

2. The multi-system joint pressure test device of claim 1, wherein the delivery line comprises:

the output part is communicated with the reflux part through the pressure test part, the end part of the output part is the first end of the conveying pipeline, and the end part of the reflux part is the second end of the conveying pipeline; the plurality of branch ports are arranged on the pressure test part.

3. The multi-system joint pressure test device according to claim 2, wherein the pressure supply portion is provided in the pressure test portion, and the pressure supply portion includes:

the pressure testing pump is arranged on the pressure testing part;

a check valve provided between the pressure test pump and the branch port;

and the first control valve is arranged between the check valve and the branch port.

4. A multi-system joint pressure test device as set forth in claim 3, wherein said pressure supply section further includes:

the first connecting hose is arranged between the outlet and the pressure testing pump;

the second connecting hose is arranged between the pressure testing pump and the branch port;

the first pressure gauge is arranged between the pressure testing pump and the first connecting hose;

the second pressure gauge is arranged between the second connecting hose and the branch port;

the filter is arranged between the outlet and the first pressure gauge.

5. The multi-system combined pressure test device of claim 2, further comprising a cleaning port connected to the delivery line, the cleaning port comprising a blowdown valve and a blowdown valve disposed between the output portion and the return portion.

6. The multi-system joint pressure test device of claim 2, wherein the test tube set comprises:

the first end of the test pipeline is connected with the branch port, and the second end of the test pipeline is connected with the pipeline;

and the detection assembly is arranged on the test pipeline.

7. The multi-system combined pressure test device of claim 6, wherein the test pipeline comprises a main pipeline and a first branch pipe, the detection assembly comprises a pressure detection part and a flow detection part, and the pressure detection part is arranged on the first branch pipe; the flow detection part is arranged on the main pipeline.

8. The multi-system combined pressure test device according to claim 7, wherein the pressure detection part comprises a third pressure gauge and a second control valve, the second control valve is arranged at the first branch pipe, and the third pressure gauge is arranged at the end part of the first branch pipe;

the flow detection portion comprises a flow meter and a third control valve, and the third control valve and the flow meter are both arranged between the first end of the test pipeline and the second end of the test pipeline.

9. The multi-system combined pressure test device according to claim 2, wherein the return portion is provided with a combination valve.

10. The multi-system combined pressure test device according to claim 2, wherein the pressure test medium storage tank is provided with a liquid level gauge.