High-speed air source control system

Abstract

The utility model relates to the technical field of medical instruments, in particular to a high-speed gas source control system which comprises a PVM1 double-end positive and negative pressure pump, a high-pressure gas tank assembly, a negative pressure tank assembly, a W1 storage cavity, a W2 storage cavity, a PS1 high-pressure gas tank, a PS2 high-pressure gas tank and a PS3 high-pressure gas tank, the VS1 negative pressure tank and the VS2 negative pressure tank are used for establishing a negative pressure source; the W1 storage cavity is used for storing liquid flow of a power driving system generated by the PS2 high-pressure gas tank; the W2 storage cavity sucks waste liquid from the negative pressure source generated by the VS2 negative pressure tank; the pressure sensors E1 to E5 are used for monitoring the pressure of each tank, and the solenoid valves V1 to V8 are used for on-off of a pipeline passage and logic control of air flow. The problem that the flow cytometry that a stable and complex air source system is used for driving a liquid path and achieving stable sheath flow is monopolized by foreign enterprises all the time is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a high-speed gas source control system. Background Art

[0002] Blood cell analysis is one of the three major routine clinical tests. However, for a long time, blood analyzers with high accuracy, high specificity (high ability to identify abnormal cells), multiple parameters and high speed have been monopolized by foreign companies.

[0003] Blood cell analyzers with high measurement speed, high accuracy, high specificity, especially for detecting abnormal samples, usually use laser flow cytometry and cell nucleic acid fluorescence staining technology to achieve quantitative analysis. To realize flow cytometry, a stable and complex gas source system is required to drive the liquid circuit and achieve the purpose of stabilizing the sheath flow. However, this field has been monopolized by foreign companies. Utility Model Content

[0004] The utility model aims to provide a high-speed gas source control system, which solves the problem that the flow cytometry which uses a stable and complex gas source system to drive the liquid circuit and achieve a stable sheath flow has been monopolized by foreign companies.

[0005] To achieve the above-mentioned purpose, the utility model provides a high-speed gas source control system, including a PVM1 double-head positive and negative pressure pump, a high-pressure gas tank assembly, a negative pressure tank assembly, a W1 storage chamber and a W2 storage chamber;

[0006] One end of the PVM1 double-head positive and negative pressure pump is connected to the high-pressure gas tank assembly, and the other end is connected to the negative pressure tank assembly. The W1 storage chamber is connected to the high-pressure gas tank assembly, and the W2 storage chamber is connected to the negative pressure tank assembly.

[0007] Among them, the high-pressure gas tank assembly includes a PS1 high-pressure gas tank, a PS2 high-pressure gas tank and a PS3 high-pressure gas tank, the PS1 high-pressure gas tank is connected to the PVM1 double-head positive and negative pressure pump; the PS3 high-pressure gas tank is connected to the PS1 high-pressure gas tank; the PS2 high-pressure gas tank is respectively connected to the PS3 high-pressure gas tank and the W1 storage chamber.

[0008] Among them, the negative pressure tank assembly includes a VS1 negative pressure tank and a VS2 negative pressure tank, the VS1 negative pressure tank is connected to the PVM1 double-head positive and negative pressure pump; the VS2 negative pressure tank is respectively connected to the VS1 negative pressure tank and the W2 storage chamber.

[0009] Among them, the high-speed air source control system also includes E1 pressure sensor, E2 pressure sensor, E3 pressure sensor, E4 pressure sensor and E5 pressure sensor, the E1 pressure sensor is connected to the VS1 negative pressure tank; the E2 pressure sensor is connected to the VS2 negative pressure tank; the E3 pressure sensor is connected to the PS1 high-pressure gas tank; the E4 pressure sensor is connected to the PS3 high-pressure gas tank; the E5 pressure sensor is connected to the PS2 high-pressure gas tank.

[0010] Among them, the high-speed air source control system also includes V1 solenoid valve, V2 solenoid valve, V3 solenoid valve and V4 solenoid valve. The V1 solenoid valve is arranged between the VS1 negative pressure tank and the PVM1 double-head positive and negative pressure pump; the V2 solenoid valve is arranged between the VS1 negative pressure tank and the VS2 negative pressure tank; the V3 solenoid valve is arranged between the PS1 high-pressure gas tank and the PVM1 double-head positive and negative pressure pump; the V4 solenoid valve is connected to the PS1 high-pressure gas tank.

[0011] Among them, the high-speed air source control system also includes V5 solenoid valve, V6 solenoid valve and V7 solenoid valve. The V5 solenoid valve is arranged between the PS1 high-pressure gas tank and the PS2 high-pressure gas tank; the V6 solenoid valve is arranged between the PS2 high-pressure gas tank and the PS3 high-pressure gas tank; the V7 solenoid valve is arranged between the PS2 high-pressure gas tank and the W1 storage chamber.

[0012] The utility model discloses a high-speed air source control system, wherein the PVM1 double-head positive and negative pressure pump is used to provide the power required by the air source, PM1 outputs a high-speed air flow, and VM1 inhales a high-speed air flow; the PS1 high-pressure gas tank, the PS2 high-pressure gas tank, and the PS3 high-pressure gas tank are used to store high-pressure gas; the VS1 negative pressure tank and the VS2 negative pressure tank are used to establish a negative pressure source; the W1 storage cavity is used to store the liquid flow of the power drive system generated by the PS2 high-pressure gas tank; the W2 storage cavity is used to absorb the waste liquid from the negative pressure source generated by the VS2 negative pressure tank; the E1 pressure sensor, the E2 pressure sensor, the E3 pressure sensor, the E4 pressure sensor, and the E5 pressure sensor are used to monitor the pressure of each tank, and the V1 solenoid valve to the V8 solenoid valve are used for the on-off of the pipeline passage and the logical control of the air flow. The PVM1 double-headed positive and negative pressure pump is used to rotate at high speed to output high-speed air flow at PM1, and to inhale high-speed air flow at VM1, and the air flow is connected to the PS1 high-pressure gas tank, the PS2 high-pressure gas tank, the PS3 high-pressure gas tank, the VS1 negative pressure tank, and the VS2 negative pressure tank through pipelines; the E1 pressure sensor, the E2 pressure sensor, the E3 pressure sensor, the E4 pressure sensor, and the E5 pressure sensor monitor the pressure of the high-pressure gas tank and the high-sealing negative pressure tank, and the V1 solenoid valve is connected to the V15 solenoid valve by the solenoid switch, and the PVM is closed when the pressure is reached. 1 double-headed positive and negative pressure pump, replenishing gas to the W1 storage chamber and the W2 storage chamber at the same time, after the W1 storage chamber and the W2 storage chamber consume part of the gas, the PS1 high-pressure gas tank, the PS2 high-pressure gas tank, the PS3 high-pressure gas tank, the VS1 negative pressure tank, and the VS2 negative pressure tank are monitored in real time. If the pressure does not reach the set value, the PVM1 double-headed positive and negative pressure pump starts quickly to provide airflow to the system, so that the gas source system is in a certain stable state, so that the W1 storage chamber produces a stable sheath flow system, and the W2 storage chamber produces a stable negative pressure suction system. The utility model can provide a high-speed and stable gas source and sheath flow during the operation of the blood analyzer, and ensure that the gas source and sheath flow reach the gas source parameters required by flow cytometry through a real-time logic control system, solving the problem that the stable and complex gas source system to drive the liquid circuit and achieve a stable sheath flow of flow cytometry has been monopolized by foreign companies. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0014] Figure 1 It is a structural schematic diagram of a high-speed air source control system of the first embodiment of the utility model.

[0015] Figure 2 It is a principle diagram of pressure detection of a high-speed gas source control system according to the first embodiment of the utility model.

[0016] Figure 3 It is a data linear graph of the first embodiment of the utility model.

[0017] Figure 4 It is a schematic diagram of an air pump control circuit of a high-speed air source control system of the first embodiment of the utility model.

[0018] Figure 5 It is an electrical block diagram of a high-speed air source control system according to the first embodiment of the utility model.

[0019] Figure 6 It is a step diagram of the high-speed gas source control method of the second embodiment of the utility model.

[0020] In the figure: 101-PVM1 double-head positive and negative pressure pump, 102-W1 storage chamber, 103-W2 storage chamber, 104-PS1 high-pressure gas tank, 105-PS2 high-pressure gas tank, 106-PS3 high-pressure gas tank, 107-VS1 negative pressure tank, 108-VS2 negative pressure tank, 109-E1 pressure sensor, 110-E2 pressure sensor, 111-E3 pressure sensor, 112-E4 pressure sensor, 113-E5 pressure sensor, 114-V1 solenoid valve, 115-V2 solenoid valve, 116-V3 solenoid valve, 117-V4 solenoid valve, 118-V5 solenoid valve, 119-V6 solenoid valve, 120-V7 solenoid valve. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0022] The first embodiment of the present application is:

[0023] See also Figures 1 to 5 ,in, Figure 1 It is a structural schematic diagram of a high-speed air source control system of the first embodiment of the utility model. Figure 2 It is a principle diagram of pressure detection of a high-speed gas source control system according to the first embodiment of the utility model. Figure 3 It is a data linear graph of the first embodiment of the utility model. Figure 4 It is a schematic diagram of an air pump control circuit of a high-speed air source control system of the first embodiment of the utility model. Figure 5It is an electrical block diagram of a high-speed gas source control system of the first embodiment of the utility model. The utility model provides a high-speed gas source control system: including a PVM1 double-head positive and negative pressure pump 101, a high-pressure gas tank assembly, a negative pressure tank assembly, a W1 storage chamber 102, a W2 storage chamber 103, an E1 pressure sensor 109, an E2 pressure sensor 110, an E3 pressure sensor 111, an E4 pressure sensor 112, an E5 pressure sensor 113, a V1 solenoid valve 114, a V2 solenoid valve 115, a V3 solenoid valve 116, a V4 solenoid valve 117, a V5 solenoid valve 118, a V6 solenoid valve 119 and a V7 solenoid valve 120, the high-pressure gas tank assembly includes a PS1 high-pressure gas tank 104, a PS2 high-pressure gas tank 105 and a PS3 high-pressure gas tank 106, and the negative pressure tank assembly includes a VS1 negative pressure tank 107 and a VS2 negative pressure tank 108.

[0024] For this specific embodiment, one end of the PVM1 double-headed positive and negative pressure pump 101 is connected to the high-pressure gas tank assembly, and the other end is connected to the negative pressure tank assembly. The W1 storage chamber 102 is connected to the high-pressure gas tank assembly, and the W2 storage chamber 103 is connected to the negative pressure tank assembly. The high-speed flow PVM1 double-headed positive and negative pressure pump 101 is used to provide the power required for the gas source. PM1 outputs a high-speed air flow, and VM1 inhales a high-speed air flow. The W1 storage chamber 102 drives the liquid flow of the power drive system generated by the PS2 high-pressure gas tank 105; the W2 storage chamber 103 absorbs the waste liquid from the negative pressure source generated by the VS2 negative pressure tank 108.

[0025] The PS1 high-pressure gas tank 104 is connected to the PVM1 double-head positive and negative pressure pump 101; the PS3 high-pressure gas tank 106 is connected to the PS1 high-pressure gas tank 104; the PS2 high-pressure gas tank 105 is respectively connected to the PS3 high-pressure gas tank 106 and the W1 storage chamber 102. The PS1 high-pressure gas tank 104, the PS2 high-pressure gas tank 105, and the PS3 high-pressure gas tank 106 are used to store high-pressure gas.

[0026] Secondly, the VS1 negative pressure tank 107 is connected to the PVM1 double-head positive and negative pressure pump 101; the VS2 negative pressure tank 108 is respectively connected to the VS1 negative pressure tank 107 and the W2 storage chamber 103. High-sealing negative pressure tank: The VS1 negative pressure tank 107 and the VS2 negative pressure tank 108 are used to establish a negative pressure source.

[0027] At the same time, the E1 pressure sensor 109 is connected to the VS1 negative pressure tank 107; the E2 pressure sensor 110 is connected to the VS2 negative pressure tank 108; the E3 pressure sensor 111 is connected to the PS1 high pressure gas tank 104; the E4 pressure sensor 112 is connected to the PS3 high pressure gas tank 106; and the E5 pressure sensor 113 is connected to the PS2 high pressure gas tank 105. The E1 pressure sensor 109, the E2 pressure sensor 110, the E3 pressure sensor 111, the E4 pressure sensor 112, and the E5 pressure sensor 113 are used to monitor the pressure of each tank.

[0028] In addition, the V1 solenoid valve 114 is provided between the VS1 negative pressure tank 107 and the PVM1 double-head positive and negative pressure pump 101; the V2 solenoid valve 115 is provided between the VS1 negative pressure tank 107 and the VS2 negative pressure tank 108; the V3 solenoid valve 116 is provided between the PS1 high-pressure gas tank 104 and the PVM1 double-head positive and negative pressure pump 101; the V4 solenoid valve 117 is connected to the PS1 high-pressure gas tank 104. The V5 solenoid valve 118 is provided between the PS1 high-pressure gas tank 104 and the PS2 high-pressure gas tank 105; the V6 solenoid valve 119 is provided between the PS2 high-pressure gas tank 105 and the PS3 high-pressure gas tank 106; and the V7 solenoid valve 120 is provided between the PS2 high-pressure gas tank 105 and the W1 storage chamber 102. The V1 solenoid valve 114 to the V8 solenoid valve are used for the on-off of the pipeline passage and the logical control of the air flow.

[0029] A high-speed air source control system of the present embodiment is used, and the PVM1 double-head positive and negative pressure pump 101 is used to rotate at high speed to output high-speed air flow at PM1 respectively, and to inhale high-speed air flow at VM1, and the air flow is connected to the PS1 high-pressure gas tank 104, the PS2 high-pressure gas tank 105, the PS3 high-pressure gas tank 106, the VS1 negative pressure tank 107, and the VS2 negative pressure tank 108 through pipelines; the E1 pressure sensor 109, the E2 pressure sensor 110, the E3 pressure sensor 111, the E4 pressure sensor 112, and the E5 pressure sensor 113 monitor the pressure of the high-pressure gas tank and the high-sealing negative pressure tank, and the V1 solenoid valve 114 is connected to the V8 solenoid valve through the solenoid switch. When the pressure is reached, the PVM1 double-headed positive and negative pressure pump 101 is turned off, and the W1 storage chamber 102 and the W2 storage chamber 103 are supplemented with gas. At the same time, after the W1 storage chamber 102 and the W2 storage chamber 103 consume part of the gas, the PS1 high-pressure gas tank 104, the PS2 high-pressure gas tank 105, the PS3 high-pressure gas tank 106, the VS1 negative pressure tank 107, and the VS2 negative pressure tank 108 are monitored in real time. If the pressure does not reach the set value, the PVM1 double-headed positive and negative pressure pump 101 is quickly started to provide airflow to the system, so that the gas source system is in a certain stable state, so that the W1 storage chamber 102 produces a stable sheath flow system, and the W2 storage chamber 103 produces a stable negative pressure suction system.

[0030] Among them, Figure 2 This is the pressure detection principle diagram of the utility model. U204 is a pressure detection device. U204 detects pressure changes, thereby outputting an analog signal at pin 3 VOUT. R205 and C208 form a low-pass filter. The required analog signal PS3 is obtained through circuit simulation. By detecting the signal change of PS3, the conversion formula is: Thus, the required air pressure value is obtained, and the correlation of the implementation results is as follows Figure 3 shown.

[0031] Figure 4 This is the control circuit schematic diagram of the PVM1 double-head positive and negative pressure pump 101. The Q2 thyristor is used to control the start and stop function of the 220V air source pump, and the corresponding speed reaches the millisecond level. The start and stop of the air pump can be controlled in real time. At the same time, the photoelectric isolation U3 coupling device is used to output different low-voltage signals through MI10 to control the start or stop of U3. R16 and R17 are used as feedback response circuits to convert the U3 signal into the control of the opening and closing of Q2, thereby achieving the effect of using the air pressure system to control the high-voltage system.

[0032] Figure 5This is an electrical block diagram of a high-speed gas source control system of the present application. The pressure sensor is connected to five different pressure tanks, the solenoid valve driver is connected to the corresponding 8 solenoid valves, the electronic switch is connected to the vacuum pump, the CAN communication implements the transmission of the pressure value, and the CPU implements the processing of the signal quantity of each sensor and processes the control logic.

[0033] The specific control logic is implemented as follows:

[0034] 1. The pressure sensor is connected to the ADC end of the CPU, and the ADC collects the signal of the pressure sensor;

[0035] 2. The CPU converts the pressure sensor signal into the pressure value required by this patent;

[0036] 3. When the pressure value is not at the target value, start the electronic switch;

[0037] 4. After the electronic switch is started, the AC vacuum pump works normally;

[0038] 5. After the AC vacuum pump works normally, it outputs positive and negative pressure air sources;

[0039] 6. The CPU sends a signal to the solenoid valve drive board according to the target pressure value;

[0040] 7. The solenoid valve driving board drives the corresponding solenoid valve according to different signals;

[0041] 8. After the solenoid valve receives the signal, it estimates the signal amount to open the corresponding valve;

[0042] 9. After the valve body is opened, the positive and negative pressure air sources enter the corresponding tanks;

[0043] 10. The signals of the positive and negative pressure sensors change;

[0044] 11. The CPU monitors the signals of the positive and negative pressure sensors and converts them into pressure values, and monitors the pressure according to the target value;

[0045] 12. After reaching the target pressure, the CPU sends a signal to close the corresponding solenoid valve;

[0046] 13. After receiving the normal closing command of the solenoid valve, the CPU continues to close the AC vacuum pump;

[0047] 14. The CPU monitors the changes in pressure in real time, and if there is any change, it repeats the control logic of steps 1 to 13.

[0048] The utility model has high-speed constant pressure, which improves the stability of samples; the high-speed multiplexed positive and negative pressure pump PVM1 can output efficient and stable gas source and sheath flow; it reduces the increase of devices, compresses the volume of the whole machine and reduces the cost of the whole machine. It can provide high-speed and stable gas source and sheath flow during the operation of the blood analyzer, and ensure that the gas source and sheath flow meet the gas source parameters required by flow cytometry through a real-time logic control system, solving the problem that the flow cytometry that uses a stable and complex gas source system to drive the liquid circuit and achieve a stable sheath flow has been monopolized by foreign companies.

[0049] The second embodiment of the present application is:

[0050] Based on the first embodiment, please refer to Figure 6 ,in, Figure 6 1 is a step diagram of a high-speed gas source control method according to a second embodiment of the present utility model. A high-speed gas source control method according to this embodiment comprises the following steps:

[0051] S1: Start the PVM1 double-head positive and negative pressure pump 101, and simultaneously generate PM1 high-speed air flow and VM1 high-speed air flow;

[0052] S2: The solenoid valves are in action, the V1 solenoid valve 114 and the V3 solenoid valve 116 are opened to inflate and inhale the PS3 high-pressure gas tank 106 and the VS1 negative pressure tank 107 at the same time, and the E1 pressure sensor 109 and the E4 pressure sensor 112 are connected to the pressure control unit to monitor the target pressure value in real time;

[0053] S3: VS1 negative pressure tank 107 is quickly inhaled to reach the required target value, at this time the solenoid valve is actuated, V2 solenoid valve 115 is opened, VS2 negative pressure tank 108 is quickly evacuated, and E2 pressure sensor 110 monitors in real time whether the target value is reached;

[0054] S4: After the VS1 negative pressure tank 107 and the VS2 negative pressure tank 108 reach the target value, the solenoid valve is actuated, and the V8 solenoid valve is opened, so that the W2 storage chamber 103 quickly reaches pressure equilibrium with the VS2 negative pressure tank 108. At this time, the V2 solenoid valve 115 is closed, and the V5 solenoid valve 118 is opened;

[0055] S5: Wait for the E1 pressure sensor 109 to reach the required pressure value, the solenoid valve is actuated, the V1 solenoid valve 114 is closed, and VM1 is allowed to suck in the atmosphere, quickly replenishing the air flow required by the PS1 high-pressure gas tank 104, and the E3 pressure sensor 111 monitors the target value in real time;

[0056] S6: When the E3 pressure sensor 111 reaches the required target value, the solenoid valve is activated, the V5 solenoid valve 118 is closed, and the V6 solenoid valve 119 is opened at the same time, and the high-speed air flow is quickly added to the PS2 high-pressure gas tank 105, and the E5 pressure sensor 113 monitors the target value in real time;

[0057] S7: After the E5 pressure sensor 113 reaches the required target value, the solenoid valve is activated to open the V7 solenoid valve 120 to replenish gas to the W1 storage chamber 102, while PM1 continues to output high-pressure gas in real time so that the W1 storage chamber 102 and the PS2 high-pressure gas tank 105 reach the same pressure target value;

[0058] S8: E1 pressure sensor 109, E2 pressure sensor 110, E3 pressure sensor 111, E4 pressure sensor 112, and E5 pressure sensor 113 reach the target value, the solenoid valve is actuated, and all the solenoid valves are closed. At this time, PS1 high-pressure gas tank 104, PS2 high-pressure gas tank 105, PS3 high-pressure gas tank 106, VS1 negative pressure tank 107, VS2 negative pressure tank 108, W1 storage chamber 102, and W2 storage chamber 103 reach a stable state, and PVM1 double-head positive and negative pressure pump 101 stops working;

[0059] S9: W1 storage chamber 102, liquid flow sheath flow of the driving system, E5 pressure sensor 113 monitors the target value of PS2 high-pressure gas tank 105 in real time within a certain range. If the pressure target value of PS2 high-pressure gas tank 105 is too low, the solenoid valve will be activated to open V6 solenoid valve 119 so that the high-pressure air flow of PS3 high-pressure gas tank 106 can be quickly supplemented to PS2 high-pressure gas tank 105, so that PS2 high-pressure gas tank 105 is stable within the target value range, ensuring that W1 storage chamber 102 can output stable sheath flow;

[0060] S10: After the PS2 high-pressure gas tank 105 reaches the target value, due to the pressure consumption of the PS3 high-pressure gas tank 106, the solenoid valve is activated, the V5 solenoid valve 118 is opened, and the high-pressure air flow of the PS1 high-pressure gas tank 104 can be supplemented to the PS3 high-pressure gas tank 106, so that the PS2 high-pressure gas tank 105 is stable within the target value range, the solenoid valve is activated, and the V5 solenoid valve 118 is closed;

[0061] S11: After the PS3 high-pressure gas tank 106 reaches the target value, due to the pressure consumption of the PS1 high-pressure gas tank 104, the solenoid valve is activated, the V3 solenoid valve 116 is opened, the PVM1 double-head positive and negative pressure pump 101 works, and PM1 outputs a high-speed air flow, so that PS1 is stabilized within the target value range;

[0062] S12: The E5 pressure sensor 113 monitors the target value range of the PS2 high pressure gas tank 105 in real time. If there is a change that is not within the target value range, the steps from S9 to S11 are repeated to make the sheath flow output by the W1 storage chamber 102 very stable.

[0063] S13: W2 absorbs the waste liquid, which consumes part of the pressure. If the target pressure value of the VS2 negative pressure tank 108 is too low, the solenoid valve will be activated to open the V2 solenoid valve 115 so that the negative pressure air flow of the VS2 negative pressure tank 108 can be quickly replenished to the VS1 negative pressure tank 107, so that the VS2 negative pressure tank 108 is stable within the target value range, ensuring that the W2 storage chamber 103 can output the absorbed waste liquid;

[0064] S14: After the VS2 negative pressure tank 108 reaches the target value, due to the pressure consumption of the VS1 negative pressure tank 107, the solenoid valve is actuated, the V1 solenoid valve 114 is opened, the PVM1 double-head positive and negative pressure pump 101 works, and VM1 inhales high-speed air flow, so that the VS1 negative pressure tank 107 is stabilized within the target value range;

[0065] S15: When the W1 storage chamber 102 and the W2 storage chamber 103 consume part of the pressure at the same time, the solenoid valve is actuated, the V1 solenoid valve 114 and the V3 solenoid valve 116 are opened and closed to cooperate with the PVM1 double-head positive and negative pressure pump 101, and steps S12 to 14 are repeated. The efficient output enables the W1 storage chamber 102 to output a continuous and stable sheath flow and the W2 storage chamber 103 to stably output and absorb the waste liquid.

[0066] Specifically, 1. Start the PVM1 double-head positive and negative pressure pump 101 to simultaneously generate PM1 (positive pressure) high-speed air flow and VM1 (reverse pressure) high-speed air flow; 2. The solenoid valve is activated, the V1 solenoid valve 114 and the V3 solenoid valve 116 are opened to inflate and inhale the PS3 high-pressure gas tank 106 and the high-sealing negative pressure tank VS1 negative pressure tank 107 at the same time, and the E1 pressure sensor 109 and the E4 pressure sensor 112 are connected to the pressure control unit to monitor the target pressure value in real time; 3. Due to the special design scheme, the VS1 negative pressure tank 107 can be quickly inhaled to reach the target value we need, at this time the solenoid valve is activated, the V2 solenoid valve 115 is opened, and the VS2 negative pressure tank 108 can be quickly evacuated, The E2 pressure sensor 110 monitors in real time to reach the target value; 4. After the VS1 negative pressure tank 107 and the VS2 negative pressure tank 108 reach the target value, the solenoid valve is activated, and the V8 solenoid valve is opened, so that the W2 storage chamber 103 can quickly reach pressure balance with the VS2 negative pressure tank 108. At this time, the V2 solenoid valve 115 is closed, and the V5 solenoid valve 118 is opened; 5. Wait for the E1 pressure sensor 109 to reach the required pressure value, the solenoid valve is activated, the V1 solenoid valve 114 is closed, and VM1 is sucked into the atmosphere to quickly replenish the air flow required by the PS1 high-pressure gas tank 104, and the E3 pressure sensor 111 monitors the target value in real time; 6. When the E3 pressure sensor 111 reaches the required target value, the solenoid valve is activated, and the V5 solenoid valve 118 is closed. , and at the same time open the V6 solenoid valve 119, and the high-speed air flow is quickly added to the PS2 high-pressure gas tank 105, and the E5 pressure sensor 113 monitors the target value in real time; 7. After the E5 pressure sensor 113 reaches the required target value, the solenoid valve is actuated to open the V7 solenoid valve 120 to replenish the W1 storage chamber 102 with gas, and at the same time PM1 continues to output high-pressure gas in real time so that the W1 storage chamber 102 and the PS2 high-pressure gas tank 105 reach the same pressure target value; 8. The E1 pressure sensor 109, E2 pressure sensor 110, E3 pressure sensor 111, E4 pressure sensor 112, and E5 pressure sensor 113 reach the target value, the solenoid valve is actuated to close all the solenoid valves, and at this time the PS1 high-pressure gas Tank 104, PS2 high-pressure gas tank 105, PS3 high-pressure gas tank 106, VS1 negative pressure tank 107, VS2 negative pressure tank 108, W1 storage chamber 102, and W2 storage chamber 103 reach a stable state, and the PVM1 double-head positive and negative pressure pump 101 stops working; 9, W1 storage chamber 102, liquid flow sheath flow of the driving system, and E5 pressure sensor 113 monitor the target value of PS2 high-pressure gas tank 105 in real time within a certain range. If the pressure target value of PS2 high-pressure gas tank 105 is too low, the solenoid valve will be actuated to open the V6 solenoid valve 119 so that the high-pressure air flow of PS3 high-pressure gas tank 106 can be quickly supplemented to PS2 high-pressure gas tank 105, so that PS2 high-pressure gas tank 105 is stable within the target value range.Ensure that the W1 storage chamber 102 can output a stable sheath flow; 10. After the PS2 high-pressure gas tank 105 reaches the target value, due to the pressure consumption of the PS3 high-pressure gas tank 106, the solenoid valve V5 solenoid valve 118 opens, and the high-pressure air flow of the PS1 high-pressure gas tank 104 can be supplemented to the PS3 high-pressure gas tank 106, so that the PS2 high-pressure gas tank 105 is stable within the target value range, the solenoid valve moves, and the V5 solenoid valve 118 is closed; 11. After the PS3 high-pressure gas tank 106 reaches the target value, the solenoid valve 118 is closed. When the PS1 high-pressure gas tank 104 consumes pressure, the solenoid valve V3 solenoid valve 116 is activated, the PVM1 double-head positive and negative pressure pump 101 works, and PM1 outputs a high-speed air flow, so that the PS1 high-pressure gas tank 104 is stable within the target value range; 12. The E5 pressure sensor 113 monitors the target value range of the PS2 high-pressure gas tank 105 in real time. If there is a change that is not within the target value range, the processes from 9 to 11 are repeated, so that the Sheath flow output by the W1 storage chamber 102 is very stable; 13. W2 absorbs the waste liquid, which consumes part of the pressure. If the pressure target value of the VS2 negative pressure tank 108 is too low, the solenoid valve is activated to open the V2 solenoid valve 115, so that the negative pressure air flow of the VS2 negative pressure tank 108 can be quickly supplemented to the VS1 negative pressure tank 107, so that the VS2 negative pressure tank 108 is stable within the target value range. Ensure that the W2 storage chamber 103 can output the absorbed waste liquid; 14. After the VS2 negative pressure tank 108 reaches the target value, due to the pressure consumption of the VS1 negative pressure tank 107, the solenoid valve actuates, the V1 solenoid valve 114 opens, and the PVM1 double-headed positive and negative pressure pump 101 works, and VM1 inhales high-speed air flow, so that VS1 stabilizes within the target value range; 15. When the W1 storage chamber 102 and the W2 storage chamber 103 consume part of the pressure at the same time, the solenoid valve actuates, the V1 solenoid valve 114 and the V3 solenoid valve 116 open and close to cooperate with the PVM1 double-headed positive and negative pressure pump 101 to work, and repeat 12 to 14. The efficient output enables the W1 storage chamber 102 to output a continuous and stable Sheath flow and the W2 storage chamber 103 to stably output the absorbed waste liquid. The utility model can provide a high-speed and stable gas source and sheath flow during the operation of the blood analyzer, and ensure that the gas source and sheath flow reach the gas source parameters required by flow cytometry through a real-time logic control system, thereby solving the problem that the flow cytometry that uses a stable and complex gas source system to drive the liquid circuit and achieve a stable sheath flow has been monopolized by foreign companies.

[0067] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A high-speed air source control system, including a PVM1 double-head positive and negative pressure pump, characterized in that: It also includes a high-pressure gas tank assembly, a negative pressure tank assembly, a W1 storage chamber and a W2 storage chamber; One end of the PVM1 double-head positive and negative pressure pump is connected to the high-pressure gas tank assembly, and the other end is connected to the negative pressure tank assembly. The W1 storage chamber is connected to the high-pressure gas tank assembly, and the W2 storage chamber is connected to the negative pressure tank assembly.

2. The high-speed air source control system according to claim 1, characterized in that: The high-pressure gas tank assembly includes a PS1 high-pressure gas tank, a PS2 high-pressure gas tank and a PS3 high-pressure gas tank. The PS1 high-pressure gas tank is connected to the PVM1 double-head positive and negative pressure pump; the PS3 high-pressure gas tank is connected to the PS1 high-pressure gas tank; the PS2 high-pressure gas tank is respectively connected to the PS3 high-pressure gas tank and the W1 storage chamber.

3. The high-speed air source control system according to claim 2, characterized in that: The negative pressure tank assembly includes a VS1 negative pressure tank and a VS2 negative pressure tank. The VS1 negative pressure tank is connected to the PVM1 double-head positive and negative pressure pump; the VS2 negative pressure tank is respectively connected to the VS1 negative pressure tank and the W2 storage chamber.

4. The high-speed air source control system according to claim 3, characterized in that: The high-speed air source control system also includes an E1 pressure sensor, an E2 pressure sensor, an E3 pressure sensor, an E4 pressure sensor and an E5 pressure sensor. The E1 pressure sensor is connected to the VS1 negative pressure tank; the E2 pressure sensor is connected to the VS2 negative pressure tank; the E3 pressure sensor is connected to the PS1 high-pressure gas tank; the E4 pressure sensor is connected to the PS3 high-pressure gas tank; and the E5 pressure sensor is connected to the PS2 high-pressure gas tank.

5. The high-speed air source control system according to claim 4, characterized in that: The high-speed air source control system also includes V1 solenoid valve, V2 solenoid valve, V3 solenoid valve and V4 solenoid valve. The V1 solenoid valve is arranged between the VS1 negative pressure tank and the PVM1 double-head positive and negative pressure pump; the V2 solenoid valve is arranged between the VS1 negative pressure tank and the VS2 negative pressure tank; the V3 solenoid valve is arranged between the PS1 high-pressure gas tank and the PVM1 double-head positive and negative pressure pump; the V4 solenoid valve is connected to the PS1 high-pressure gas tank.

6. The high-speed air source control system according to claim 5, characterized in that: The high-speed gas source control system also includes a V5 solenoid valve, a V6 solenoid valve and a V7 solenoid valve. The V5 solenoid valve is arranged between the PS1 high-pressure gas tank and the PS2 high-pressure gas tank; the V6 solenoid valve is arranged between the PS2 high-pressure gas tank and the PS3 high-pressure gas tank; and the V7 solenoid valve is arranged between the PS2 high-pressure gas tank and the W1 storage chamber.

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