Pressure and flow debugging and testing equipment
By providing a pressure flow debugging and testing equipment for detecting the pressure and flow of the ventilator air circuit functional module, the problem of lack of air tightness detection before assembly of the ventilator is solved, and effective testing and detection of the performance of the ventilator air circuit functional module is realized.
Patent Information
- Application Number
- CN202421755914.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-07-23
AI Technical Summary
During the development of the ventilator, there is a lack of suitable equipment that can detect airtightness, pressure and flow of the ventilator air circuit functional module before assembly.
A pressure flow debugging testing device is provided, including an air inlet, an air supply outlet, a first switch, a pressure regulating valve and a first pressure gauge for regulating and detecting the pressure of gas entering the module to be tested; and a test port, a flow meter, a third switch and a second pressure gauge for detecting flow and pressure in the gas passage.
This equipment can complete the performance test of the entire ventilator machine and the functional module of the air circuit, ensure the accuracy and efficiency of the air circuit detection of the ventilator before assembly, and improve assembly quality and efficiency.
Smart Images

Figure CN223041954U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of testing equipment, and particularly to a pressure and flow debugging and testing equipment. Background Art
[0002] In modern clinical medicine, as an effective means to artificially replace the function of autonomous ventilation, ventilators have been widely used in respiratory failure caused by various reasons, anesthesia respiratory management during major surgeries, respiratory support treatment, and first aid resuscitation, and play a very important role in the field of modern medicine. A ventilator is a crucial medical device that can prevent and treat respiratory failure, reduce complications, and save and extend the lives of patients.
[0003] A ventilator generally includes multiple functional modules, such as a power supply module, a monitoring module, and a gas path functional module. Among them, the gas path functional module is a functional module related to gas circulation, and may include an inhalation module, a breathing module, a gas source module, a turbine module, etc.
[0004] During the development of a ventilator, it is necessary to detect each functional module of the ventilator before the assembly of the ventilator is completed, so as to ensure that the functional modules of the ventilator are qualified, avoid functional module failures after the assembly of the ventilator is completed, increase the functional module replacement procedure, and reduce the installation efficiency. Summary of the Utility Model
[0005] To overcome the problems existing in the related art, this specification provides a pressure and flow debugging and testing equipment, which can complete the gas path detection of the gas path functional module of the ventilator before assembly.
[0006] According to a first aspect of the present disclosure, there is provided a pressure and flow debugging and testing equipment for testing the pressure or flow of a module to be tested. The pressure and flow debugging and testing equipment includes an air inlet, a gas supply outlet, and a first switch, a pressure regulating valve, and a first pressure gauge connected between the air inlet and the gas supply outlet; the first switch is connected between the air inlet and the pressure regulating valve, and the pressure regulating valve and the first pressure gauge are connected between the first switch and the gas supply outlet; the air inlet is used to connect to an external gas supply device, and the gas supply outlet is used to connect to the air inlet end of the module to be tested;
[0007] The pressure and flow debugging and testing equipment further includes a test port and a third switch, a flow meter, a fourth switch, and a second pressure gauge connected between the first pressure gauge and the test port; the third switch is connected between the first pressure gauge and the second pressure gauge, the flow meter and the fourth switch are connected between the third switch and the second pressure gauge, and the test port is used to connect to the test port of the module to be tested;
[0008] Among them, the first switch and the fourth switch are both used to control the supply and cut-off of gas, and the third switch is an exhaust switch.
[0009] In some exemplary embodiments of the present disclosure, the pressure regulator is connected between the first switch and the first pressure gauge;
[0010] The pressure and flow rate debugging test device further includes a second switch, and the second switch is connected between the pressure regulator and the gas supply outlet.
[0011] In some exemplary embodiments of the present disclosure, the number of the second switches is multiple, and the number of the gas supply outlets is multiple. Each of the second switches correspondingly controls the supply and cut-off of gas to a single gas supply outlet.
[0012] In some exemplary embodiments of the present disclosure, the number of the fourth switches is multiple, and the number of the flow meters is multiple. Each of the fourth switches correspondingly controls the on-off of the gas flow through a single flow meter.
[0013] In some exemplary embodiments of the present disclosure, the ranges of different flow meters are different.
[0014] In some exemplary embodiments of the present disclosure, the number of the flow meters is two, namely a first flow meter and a second flow meter. The range of the first flow meter is 0 - 15 L / min, and the range of the second flow meter is 0 - 60 mL / min.
[0015] In some exemplary embodiments of the present disclosure, the module to be tested is a ventilator or a gas path function module included in a ventilator.
[0016] In some exemplary embodiments of the present disclosure, the ranges of the first pressure gauge and the second pressure gauge are both greater than the range of the pressure regulator.
[0017] In some exemplary embodiments of the present disclosure, the ranges of the first pressure gauge and the second pressure gauge are 0 - 800 KPa.
[0018] In some exemplary embodiments of the present disclosure, the range of the pressure regulator is 0 - 650 KPa.
[0019] The technical solution provided by the present disclosure may include the following beneficial effects:
[0020] The pressure and flow rate debugging and testing equipment provided by the present disclosure has an air inlet for connecting an external gas supply device, such as high-pressure gas, and a gas supply outlet for connecting to the air inlet end of the module under test. The gas from the external gas supply device can enter through the air inlet of the pressure and flow rate debugging and testing equipment, and after passing through the first switch, pressure regulating valve, and first pressure gauge, it flows to the gas supply outlet, and further enters the air inlet end of the module under test through the gas supply outlet to provide a suitable gas source for the module under test. Among them, the pressure of the gas entering the module under test can be adjusted by the pressure regulating valve, and the pressure value can be displayed by the first pressure gauge.
[0021] The test port of the pressure and flow rate debugging and testing equipment is used to connect to the test port of the module under test to test the flow rate and pressure in the corresponding gas path of the module under test. Among them, the flow rate of the gas path can be displayed by the flow meter, and the pressure value can be displayed by the second pressure gauge. In addition, the airtightness of the corresponding gas path in the module under test can be judged by the numerical display of the first pressure gauge and the second pressure gauge.
[0022] The pressure and flow rate debugging and testing equipment provided by the present disclosure can complete the performance testing of the whole ventilator and the gas path function module, and can realize the gas path detection of the ventilator before assembly to ensure the assembly efficiency and assembly quality of the ventilator.
[0023] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this specification. Description of the Drawings
[0024] The drawings here are incorporated into the specification and constitute a part of this specification, showing the embodiments in line with this specification, and are used together with the specification to explain the principles of this specification.
[0025] Figure 1 It is a schematic diagram of the connection structure of the components of the pressure and flow rate debugging and testing equipment in an exemplary embodiment of the present disclosure;
[0026] Figure 2 It is a schematic diagram of the external structure of the pressure and flow rate debugging and testing equipment in an exemplary embodiment of the present disclosure.
[0027] Description of the Reference Numerals:
[0028] P1 - Air inlet; P2 - Gas supply outlet; P3 - Test port; K1 - First switch; K2 - Second switch; K3 - Third switch; K4 - Fourth switch; A1 - First pressure gauge; A2 - Second pressure gauge; B1 - First flow meter; B2 - Second flow meter; C1 - Pressure regulating valve; 100 - Pressure and flow rate debugging and testing equipment; 110 - Housing; 120 - Power supply module; 200 - Module under test. Detailed Embodiments
[0029] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. Like reference numerals in the figures denote like or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.
[0030] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification only for convenience, for example, according to the directions of the examples described in the accompanying drawings. It can be understood that if the device of the icon is turned upside down, the component described as "upper" will become the component "lower". When a structure is "on" another structure, it may mean that a structure is integrally formed on another structure, or that a structure is "directly" disposed on another structure, or that a structure is "indirectly" disposed on another structure through another structure.
[0031] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "comprising" and "having" are used to mean an open inclusion and mean that there may be additional elements / components / etc. in addition to the listed elements / components / etc.; the terms "first", "second", "third", etc. are used only as labels and are not a limitation on the quantity of their objects.
[0032] In the present disclosure, terms such as "vertical" and "equal" refer to vertical and equal within the process error range, not vertical and equal in an absolute sense. The process error can be within ±10% or within ±5%. For example, if the first direction and the second direction are perpendicular, it can be understood that the included angle between the first direction and the second direction can be 90° ± 5°.
[0033] The ventilator includes a plurality of functional modules, such as a power module, a monitoring module, and a gas circuit functional module. Among them, the gas circuit functional module is a functional module related to gas flow, and may include an inhalation module, an exhalation module, a gas source module, a turbine module, etc. During the development of the ventilator, it is necessary to detect these gas circuit functional modules to ensure their qualified quality. In the related art, there is no suitable device to complete the detection of the airtightness, pressure, flow rate, etc. of these gas circuit functional modules before the assembly of the ventilator.
[0034] Based on this, as Figure 1 and Figure 2As shown in the figure, an embodiment of the present disclosure provides a pressure and flow rate debugging test device 100 for testing the pressure or flow rate of a module under test 200. The pressure and flow rate debugging test device 100 includes an air inlet P1, a gas supply outlet P2, a first switch K1, a pressure regulating valve C1, and a first pressure gauge A1 connected between the air inlet P1 and the gas supply outlet P2. The first switch K1 is connected between the air inlet P1 and the pressure regulating valve C1, and the pressure regulating valve C1 and the first pressure gauge A1 are connected between the first switch K1 and the gas supply outlet P2. The air inlet P1 is used to connect to an external gas supply device, and the gas supply outlet P2 is used to connect to the air inlet end of the module under test 200. The pressure and flow rate debugging test device 100 further includes a test port P3, a third switch K3, a flow meter, a fourth switch K4, and a second pressure gauge A2 connected between the first pressure gauge A1 and the test port P3. The third switch K3 is connected between the first pressure gauge A1 and the second pressure gauge A2, the flow meter and the fourth switch K4 are connected between the third switch K3 and the second pressure gauge A2, and the test port P3 is used to connect to the test port of the module under test 200. Among them, the first switch K1 and the fourth switch K4 are both used to control the on / off of the gas supply, and the third switch K3 is an exhaust switch.
[0035] For the pressure and flow rate debugging test device 100 provided by the present disclosure, the air inlet P1 is used to connect to an external gas supply device, such as high-pressure gas, and the gas supply outlet P2 is used to connect to the air inlet end of the module under test 200. The gas from the external gas supply device can enter through the air inlet P1 of the pressure and flow rate debugging test device 100, flow through the first switch K1, the pressure regulating valve C1, and the first pressure gauge A1, and then flow to the gas supply outlet P2, and further enter the air inlet end of the module under test 200 through the gas supply outlet P2 to provide a suitable gas source for the module under test 200. Among them, the pressure of the gas entering the module under test 200 can be adjusted by the pressure regulating valve C1, and the pressure value can be displayed by the first pressure gauge A1.
[0036] The test port P3 of the pressure and flow rate debugging test device 100 is used to connect to the test port of the module under test 200 to test the flow rate and pressure in the corresponding gas path of the module under test 200. Among them, the flow rate of the gas path can be displayed by the flow meter, and the pressure value can be displayed by the second pressure gauge A2. In addition, the airtightness of the corresponding gas path in the module under test 200 can be judged by the numerical displays of the flow meter, the first pressure gauge A1, and the second pressure gauge A2.
[0037] The pressure and flow rate debugging test device 100 provided by the present disclosure can complete the performance test of the whole ventilator and its gas path functional modules, and can realize the gas path detection before the assembly of the ventilator to ensure the assembly efficiency and assembly quality of the ventilator.
[0038] The following will describe in detail each part of the pressure and flow debugging test device 100 provided by the embodiments of the present disclosure with reference to the accompanying drawings:
[0039] As Figure 1 and Figure 2 shown, the present disclosure provides a pressure and flow debugging test device 100, which can be used to perform performance tests on the entire ventilator and the gas path function modules included therein, such as pressure, flow, and airtightness tests. The gas path function modules included in the ventilator may include an inhalation module, an exhalation module, a gas source module, a turbine module, etc. The ventilator and each gas path function module included in the ventilator may have an intake end and a test port, and the intake end and the test port can be used to connect to the pressure and flow debugging test device 100.
[0040] Specifically, the pressure and flow debugging test device 100 includes an intake port P1, a gas supply outlet P2, and a first switch K1, a pressure regulating valve C1, and a first pressure gauge A1 connected between the intake port P1 and the gas supply outlet P2; the first switch K1 is connected between the intake port P1 and the pressure regulating valve C1, and the pressure regulating valve C1 and the first pressure gauge A1 are connected between the first switch K1 and the gas supply outlet P2; the intake port P1 is used to connect to an external gas supply device, and the gas supply outlet P2 is used to connect to the intake end of the module 200 to be tested.
[0041] The intake port P1 can be used to connect to an external gas supply device as a gas supply source. The number of intake ports P1 can be one or more, and is not specifically limited. The external gas supply device can be a high-pressure gas source, and the gas it contains can be selected according to the requirements of the module 200 to be tested. The gas of the external gas supply device can enter the pressure and flow debugging test device 100 of the present disclosure from the intake port P1 and then enter the module 200 to be tested, and further enter the gas path of the module 200 to be tested.
[0042] The intake end of the module 200 to be tested can be connected to the gas supply outlet P2 so that the gas of the external gas supply device can enter the gas path of the module 200 to be tested after passing through the pressure and flow debugging test device 100. In some embodiments of the present disclosure, the number of gas supply outlets P2 can be multiple, which can be connected to different intake ends of the module 200 to be tested, or can be connected to different modules 200 to be tested. Optionally, the number of gas supply outlets P2 can be two.
[0043] A first switch K1, a pressure regulating valve C1, and a first pressure gauge A1 are connected between the air inlet P1 and the air supply outlet P2. Among them, the pressure regulating valve C1 is used to adjust the pressure of the external gas entering the module 200 to be tested. By adjusting the pressure regulating valve C1, the required pressure of the module 200 to be tested can be obtained. The adjustable range of the pressure regulating valve C1 can be set according to actual needs. Optionally, the measuring range of the pressure regulating valve C1 is 0 - 650 KPa, that is, the maximum adjustable range of the pressure regulating valve C1 is 650 KPa.
[0044] The first switch K1 is connected between the air inlet P1 and the pressure regulating valve C1. The first switch K1 is used to control the on / off of the air source provided by the external air supply device entering the pressure and flow rate debugging test device 100. That is, after the on / off control of the first switch K1, the air source provided by the external air supply device is pressure-regulated by the pressure regulating valve C1 and then output backward.
[0045] The pressure regulating valve C1 and the first pressure gauge A1 are connected between the first switch K1 and the air supply outlet P2. Further, the pressure regulating valve C1 is connected between the first switch K1 and the first pressure gauge A1. In some embodiments of the present disclosure, the measuring range of the first pressure gauge A1 is greater than that of the pressure regulating valve C1 to ensure that during the pressure regulation process, the staff can accurately know the pressure value. Optionally, the measuring range of the first pressure gauge A1 is 0 - 800 KPa.
[0046] Further, in some embodiments, the pressure and flow rate debugging test device 100 further includes a second switch K2. The second switch K2 is connected between the pressure regulating valve C1 and the air supply outlet P2. The number of the second switches K2 is multiple, and the number of the air supply outlets P2 is multiple. Each second switch K2 correspondingly controls the on / off of the air supply of a single air supply outlet P2. That is, each second switch K2 is connected in series with a single air supply outlet P2.
[0047] The pressure and flow rate debugging test device 100 further includes a test port P3, and a third switch K3, a flow meter, a fourth switch K4, and a second pressure gauge A2 connected between the first pressure gauge A1 and the test port P3. The third switch K3 is connected between the first pressure gauge A1 and the second pressure gauge A2. The flow meter and the fourth switch K4 are connected between the third switch K3 and the second pressure gauge A2. The test port P3 is used to connect to the test port of the module 200 to be tested.
[0048] The module under test 200 can be connected between the gas supply outlet P2 and the test port P3 to measure the performance of the module under test 200. The gas source provided by the external gas supply device can enter the internal gas path of the module under test 200 after passing through the gas supply outlet P2 of the pressure and flow rate debugging test device 100, and then flow into the test port P3 of the pressure and flow rate debugging test device 100 after passing through the test port of the module under test 200. The second pressure gauge A2, flow meter, etc. are used to complete the tests of the pressure, flow rate and airtightness of the module under test 200.
[0049] In addition, the module under test 200 can also be separately connected to the gas supply outlet P2 or the test port P3 of the pressure and flow rate debugging test device 100 provided in the present disclosure. For example, during the use of the whole ventilator, the air inlet end of the ventilator can also be separately connected to the gas supply outlet P2 of the pressure and flow rate debugging test device 100, and the test port of the ventilator is not connected to the test port P3 of the pressure and flow rate debugging test device 100. At this time, the pressure and flow rate debugging test device 100 can be used only as a pressure regulating test device.
[0050] The gas entering the module under test 200 flows out from its test port after passing through the internal gas path, and then passes through the test port P3 of the pressure and flow rate debugging test device 100, and then sequentially passes through the second pressure gauge A2, the fourth switch K4 and the flow meter. Among them, the pressure value of the gas can be displayed by the second pressure gauge A2, and the flow rate value can be displayed by the flow meter. In this way, the pressure and flow rate detection of the gas path of the module under test 200 are completed.
[0051] In some embodiments of the present disclosure, the number of the fourth switches K4 is multiple, and the number of the flow meters is multiple. Each of the fourth switches K4 controls the on-off of the gas flow of each of the flow meters. That is, each flow meter and each fourth switch K4 are connected in series, and then are connected in parallel with the series-connected flow meters and fourth switches K4 of others. The ranges of different flow meters are different to meet different flow rate measurement requirements.
[0052] In a specific embodiment, the number of both the flow meter and the fourth switch K4 is two. Among them, the two flow meters are the first flow meter B1 and the second flow meter B2 respectively. The range of the first flow meter B1 is 0-15 L / min, and the range of the second flow meter B2 is 0-60 mL / min. The flow meter can be a rotameter.
[0053] Preferably, the range of the second pressure gauge A2 is greater than the range of the pressure regulating valve C1. Optionally, the range of the second pressure gauge A2 is 0-800 KPa.
[0054] The third switch K3 is an exhaust switch, which is connected between the first pressure gauge A1 and the flowmeter. Specifically, it is connected between the air outlet end of the first pressure gauge A1 and the air outlet end of the flowmeter. The exhaust switch is used to discharge gas to ensure the accuracy of the pressure values displayed by the first pressure gauge A1 and the second pressure gauge A2.
[0055] When the pressure and flow rate debugging and testing device 100 provided by the present disclosure is in use, the module to be tested 200 can be connected between the gas supply outlet P2 and the test port P3. The first switch K1, the second switch K2 corresponding to the single gas supply outlet P2, and the fourth switch K4 corresponding to the single flowmeter are turned on. After the external gas source enters the pressure and flow rate debugging and testing device 100 from the air inlet P1, the required pressure value is obtained through the regulation of the pressure regulating valve C1, and this pressure value can be displayed by the first pressure gauge A1. The gas supply outlet P2 supplies the gas source with this pressure value to the module to be tested 200. After passing through the internal gas path of the module to be tested 200, it enters the pressure and flow rate debugging and testing device 100 through the test port P3. Its pressure value can be displayed by the second pressure gauge A2, and the flow rate value can be displayed by the flowmeter through which it flows, so as to complete the pressure and flow rate tests of the module to be tested 200. During this process, the airtightness of the module to be tested 200 can also be judged by the numerical displays of the first pressure gauge A1, the flowmeter, and the second pressure gauge A2.
[0056] As Figure 1 shown, the pressure and flow rate debugging and testing device 100 provided by the present disclosure may further include a power supply module 120 to supply power to the testing device. The power supply can be a wireless power supply or a wired power supply, which is not limited herein.
[0057] As Figure 2 shown, the pressure and flow rate debugging and testing device 100 provided by the present disclosure may further include a housing, which can be a geometric housing, such as a cuboid. Components such as the first switch K1, the second switch K2, the third switch K3, the fourth switch K4, the pressure regulating valve C1, the first pressure gauge A1, the second pressure gauge A2, and the flowmeter can be arranged on the housing. Connection lines or pipelines can be arranged inside the housing to form an independent and complete pressure and flow rate debugging and testing device 100.
[0058] In summary, for the pressure and flow rate debugging and testing device 100 provided by the present disclosure, the air inlet P1 is used to connect to an external gas supply device, such as high-pressure gas, and the gas supply outlet P2 is used to connect to the inlet end of the module to be tested 200. The gas of the external gas supply device can enter from the air inlet P1 of the pressure and flow rate debugging and testing device 100, and after passing through the first switch K1, the pressure regulating valve C1, and the first pressure gauge A1, it flows to the gas supply outlet P2, and further enters the inlet end of the module to be tested 200 through the gas supply outlet P2, providing a suitable gas source for the module to be tested 200. Among them, the pressure of the gas entering the module to be tested 200 can be adjusted by the pressure regulating valve C1, and the pressure value can be displayed by the first pressure gauge A1.
[0059] The test port P3 of the pressure and flow rate debugging test device 100 is used to connect to the test port of the module 200 to be tested, so as to test the flow rate and pressure in the corresponding gas path of the module 200 to be tested. Among them, the flow rate of the gas path can be displayed by a flow meter, and the pressure value can be displayed by the second pressure gauge A2. In addition, the airtightness of the corresponding gas path in the module 200 to be tested can be judged by the numerical displays of the flow meter, the first pressure gauge A1 and the second pressure gauge A2.
[0060] The pressure and flow rate debugging test device 100 provided by the present disclosure can complete the performance test of the whole ventilator and the gas path function module, and can realize the gas path detection before the assembly of the ventilator, so as to ensure the assembly efficiency and assembly quality of the ventilator.
[0061] After considering the specification and practicing the invention disclosed herein, those skilled in the art will readily conceive of other embodiments of the present disclosure. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common knowledge or conventional technical means in the technical field not disclosed in the present disclosure. The specification and examples are only to be considered as exemplary, and the true scope and spirit of the present disclosure are pointed out by the appended claims.
Claims
1. A pressure flow debugging test device, used to test the pressure or flow of a module to be tested, characterized in that: The pressure flow debugging test equipment comprises an air inlet, an air supply outlet, and a first switch, a pressure regulating valve, and a first pressure gauge connected between the air inlet and the air supply outlet; the first switch is connected between the air inlet and the pressure regulating valve, and the pressure regulating valve and the first pressure gauge are connected between the first switch and the air supply outlet; the air inlet is used to connect to an external air supply device, and the air supply outlet is used to connect to the air inlet end of the module to be tested; The pressure flow debugging test equipment also includes a test port and a third switch connected between the first pressure gauge and the test port, a flow meter, a fourth switch and a second pressure gauge; the third switch is connected between the first pressure gauge and the second pressure gauge, the flow meter and the fourth switch are connected between the third switch and the second pressure gauge, and the test port is used to connect the test port of the module to be tested; The first switch and the fourth switch are both used to control the on and off of gas supply, and the third switch is an exhaust switch.
2. The pressure flow debugging test equipment according to claim 1, characterized in that: The pressure regulating valve is connected between the first switch and the first pressure gauge; The pressure flow debugging test equipment also includes a second switch, which is connected between the pressure regulating valve and the air supply outlet.
3. The pressure flow debugging test equipment according to claim 2 is characterized in that: There are multiple second switches and multiple gas supply outlets, and a single second switch controls the on / off of gas supply of a single gas supply outlet.
4. The pressure flow debugging test equipment according to claim 1, characterized in that: There are multiple fourth switches, and there are multiple flow meters. A single fourth switch controls the on and off of gas flow of a single flow meter.
5. The pressure flow debugging test equipment according to claim 4, characterized in that: The flow meters described above have different measuring ranges.
6. The pressure flow debugging test equipment according to claim 4, characterized in that: There are two flow meters, namely a first flow meter and a second flow meter. The measuring range of the first flow meter is 0-15 L / min, and the measuring range of the second flow meter is 0-60 mL / min.
7. The pressure flow debugging test equipment according to claim 1, characterized in that: The module to be tested is a ventilator or an air path function module included in the ventilator.
8. The pressure flow debugging test equipment according to claim 1, characterized in that: The measuring ranges of the first pressure gauge and the second pressure gauge are both greater than the measuring range of the pressure regulating valve.
9. The pressure flow debugging test equipment according to claim 8, characterized in that: The measuring range of the first pressure gauge and the second pressure gauge is 0-800KPa.
10. The pressure flow debugging test equipment according to claim 8, characterized in that: The measuring range of the pressure regulating valve is 0-650KPa.