Air compressor performance detection system and detection method

[0030] Example 1

[0031] Such as Figure 1 ~ Figure 7 As shown, the present invention discloses an air compressor performance detection system, which includes an air compressor. In a specific embodiment of the present invention, it includes a detection platform for placing the air compressor and for supplying the air compressor to the intake end. The air supply sampling assembly 1, the detection assembly 2 for absorbing the exhaust air from the air compressor, and the air pump 3 for filling the air supply sampling assembly; the air supply sampling assembly 1 and the detection assembly 2 both pass through the first The air supply pipe 11 and the second air supply pipe 12 are respectively connected to the intake end and the exhaust end of the air compressor, and the first air supply pipe 11 and the second air supply pipe 12 are both provided with an air supplement assembly 4; when the air compressor is working , Extract the gas in the gas sampling assembly 1 and pour this part of the gas into the detection assembly 2. The first gas supply pipe 6 and the second gas supply pipe 7 are both provided with a reserved vacuum valve 5.

[0032] In a specific embodiment of the present invention, the air supply sampling assembly 1 includes a sampling tank body 10 having a cavity 11, and is arranged in the sampling tank body 10 and used to divide the cavity 11 into at least three sampling chambers 110. The main body 12 and a plurality of wires 13 arranged inside the divided main body 12; the sampling chamber 110 includes a main chamber 110a with a "cylindrical" shape and a "hemispherical" inlet connected to both ends of the main chamber 110a. The air chamber 110b and the air outlet chamber 110c; the split body 12 is provided with a plurality of U-shaped wire cavities 120 for storing various wires, and the U-shaped wire cavity 120 includes two extending from the bottom of the split body 12 to the top thereof And a sub-chamber 120a for storing different wires, and the top of the sampling tank 10 is provided with a test lamp 121 that is electrically connected to the different wires in the U-shaped wire cavity 120, and the bottom of the sampling tank 10 is installed to connect to the wires 13 The first electrode 14; each main chamber 110a is located on the wall of the partition body 12 are longitudinally equidistantly spaced with a plurality of switch grooves 15 communicating with each sub-chamber 120a, each switch groove 15 is provided with each The switch slot 15 is adapted and used to control the power button 16 of the circuit in each U-shaped wire cavity 120; the center of the bottom wall of the inlet chamber 110b and the center of the top wall of the outlet chamber 110c are both A one-way valve 17 is provided to allow the two to communicate with the outside of the sampling tank 10. Each one-way valve 17 on the top of the sampling tank 10 communicates with the first air supply pipe 11 through a branch pipe 18 and is provided at the place where the two are connected. There is a valve 19, between the two one-way valves 17 there is a sampling airbag body 1a that is adapted to each sampling cavity 110 and communicates with the two. Each air pump 3 passes through the air inlet pipe 30 and the one-way at the bottom of the sampling tank 10 The valve 17 supplies air to the inside of each sampling airbag body 1a; when the sampling airbag body 1a is full of air, each sampling airbag body 1a fills each sampling cavity 110 and presses each electric button 16 to energize the circuit.

[0033] In a specific embodiment of the present invention, the detection assembly 2 includes a detection tank 20 and partitions 22 that are longitudinally spaced in the detection tank 20 and divide the detection tank 20 into a plurality of detection bodies 21, each detection body 21 Each has a detection cavity 210; a spiral wire cavity 211 extending spirally is provided on the circumferential side wall of the detection body 21, a feedback lamp 212 is installed on the side wall of the detection body 21, and the lamp of each feedback lamp 212 The sockets are all located in each spiral wire cavity 211. The spiral wire cavity 211 is provided with two wires 213 electrically connected to the lamp socket 212 of the feedback lamp, and the other end of each wire passes through the detection body 21 and is connected with For the second electrode 214, a plurality of switch grooves 22 are respectively provided on both sides of the cavity walls of the detection cavity 210, and each switch groove 22 is equipped with each switch groove 22 and is used to control the spiral wire cavity 211 The electric buttons 23 for energizing or de-energizing the inner wires, and the electric buttons 23 on both sides of the detection chamber 210 are arranged in a staggered position; the top and bottom of the detection tank 20 are respectively provided with a one-way valve 24 and an electric valve 25, and each The partition 22 is provided with an electric valve 26 that allows the adjacent detection chambers 210 to communicate. Each detection chamber 210 is provided with a detection airbag body 27 adapted to the detection chamber 210. Each detection airbag body 27 is connected to the corresponding detection chamber 210. The adjacent electric valve 26 is in communication; the one-way valve 24 on the top of the detection tank 20 is in communication with the second air supply pipe 7.

[0034] In the specific embodiment of the present invention, the total volume of each detection cavity 210 is equal to the total volume of each sampling cavity 110.

[0035] In the specific embodiment of the present invention, the total volume of each detection balloon body 27 is equal to the total volume of each sampling balloon body 1a.

[0036] In a specific embodiment of the present invention, the number of sampling balloon bodies 1a may be three, and the number of detection balloon bodies 27 may be six.

[0037] In a specific embodiment of the present invention, the reserved vacuum valve 5 may be a one-way valve.

[0038] In a specific embodiment of the present invention, the detection cavity 210 and the sampling cavity 110 are both provided with a pressing assembly 8 for pressing the electrical buttons 23; the pressing assembly 8 includes a plurality of devices arranged transversely through the sampling airbag body 1a. Or detect the airbag body 27 and the movable cavity 80 corresponding to each electric button 23, the cavity wall of the detection cavity 210 or the cavity wall of the sampling cavity 110 is fixedly connected with the movable shaft 81, and the free ends of the movable shaft 81 are all Passing through each movable cavity 80 and extending in the direction of each corresponding electric button 23 and contacting the surface of the electric button 23, the contact surface of the electric button 23 and the movable shaft 81 is recessed with a positioning cavity 23a, and the movable shaft 81 The contact surface with the electric button 23 is provided with a positioning pin 81a movable in the positioning cavity 23a, and the movable cavity 80 is provided with an axial movement on each movable shaft 81 at one end of the cavity near each electric button 23 And a pressing block 83 for pressing the electric buttons 23, the pressing block 83 is provided with a pressing cavity 83a adapted to each electric button 23 on a side close to each electric button 23, and each switch slot 15 (or switch slot 22 The periphery of the notch of) is provided with a receiving cavity 9 that matches with the pressure block 83.

[0039] In a specific embodiment of the present invention, the electric button may be an ordinary household light switch.

[0040] In a specific embodiment of the present invention, the air supplement assembly 4 includes a gas supplement cylinder 41 having an air inlet passage 40 and an air flow meter 42 communicating with the output end of the gas supplement cylinder 41. The input end of the gas supplement cylinder 41 is provided with There is an electric valve 43 used to control the opening or closing of the air intake passage 40, and a check valve 44 for supplying gas to the inside of the gas replenishing cylinder 41 is provided in the middle of the gas replenishing cylinder 41.

[0041] In the specific embodiment of the present invention, both the first air supply pipe 6 and the second air supply pipe 7 may be fire-fighting pipes.

[0042] The advantage of this embodiment is that it can detect the comparison between the air entering the air compressor (i.e. the air inside the air supply sampling assembly) and the air discharged from the air compressor (i.e. the air collected by the detection assembly) to obtain The air transfer ratio of the air compressor is mainly: the difference A is used to obtain the air consumption during the transfer process, and the air transfer ratio α is obtained, and the difference B can be compared with the difference A , Get the air transfer ratio β, if the error between α and β is within 1% to 5%, then the air transfer ratio range is between α and β;

[0043] In more detail:

[0044] The volume of each sampling airbag body and the detection airbag body are known, for example (the volume of each detection airbag body is m, and the total volume of each detection airbag body is 6m, so the volume of each sampling airbag body is 2m);

[0045] The detection steps are as follows: First, after vacuuming the air in each sampling airbag body, the first air supply pipe, the second air supply pipe, the air compressor, the second air supply pipe, and each detection airbag body through the reserved vacuum valve, Close the valve at the place where the bronchial pipe (the air in the bronchial pipe can be ignored) and the first air supply pipe, and inflate the inside of each sampling balloon through the one-way valve at the bottom of the sampling tank until the test lights on the top of the sampling tank are all When lit (the principle is: the wires in each U-shaped wire cavity are electrically connected to the test light on the top of the sampling tank, and the power is supplied to each wire through the first motor at the bottom. Because the electrical buttons in each main cavity are all In series with each wire, when the sampling airbag body is filled with gas and each main chamber is filled, each electric button is squeezed. When each electric button is pressed by the sampling airbag body, the circuit is energized and the test light is on), inflating End;

[0046] Secondly, open the valve connecting the bronchial pipe and the first air supply pipe, and drive the air compressor to extract the air inside each sampling airbag body until it is exhausted (because the first air supply pipe is a fire fighting pipe, when the first air supply pipe When the caliber is reduced, it means that the air inside the sampling balloon body is exhausted), until the first air supply tube contracts (ie: the first air supply tube is dry) to the gas supply bottle, close the electric valve on the gas supply bottle, and pass the The one-way valve set on the gas replenishment bottle injects replenishment gas into the inside of the first air supply pipe (the amount of replenishment gas is the volume of the second air supply pipe and the volume between the air replenishment component on the first air supply pipe and the air compressor. In sum, the purpose is to: to ensure the accuracy of the detection, that is, because all components are vacuumed in advance, the gas remaining in the air supply pipe during the extraction process of the air compressor affects the accuracy of the detection , So fill the supplementary gas to reduce the detection error), in the process of pumping the inside of the sampling airbag, open the electric valve on the top of the first layer of detection body, and fill the first layer of detection airbag body, when the first layer of detection body side When the feedback light on the wall lights up, open the electric valve on the second layer of the detection body, and then fill the second layer of detection airbag body. When the feedback light on the side wall of the second layer of the detection body is on, turn on the electric valve on the third detection body. Valve, until the completion of the replenishment of gas, if all the feedback lights on the detection body are on, it proves that the air transfer ratio of the air compressor is close to 100%. If the feedback lights on the detection body (the principle is the same as the principle of the above test lights) Same) When the part is not lit, close the electric valve on the second air supply pipe, and pour air into the second air supply pipe through the one-way valve on the gas replenishment cylinder on the second air supply pipe until all the feedback lights are on At the end of the time, and record the difference A on the air flow meter. If the difference is m, it proves that the total amount of 6m has been transferred by 5m, and the air transfer ratio α can be obtained;

[0047] It should be noted that in order to further improve the detection accuracy, exhaust all the gas inside the detection gradually, and repeat the above steps, at this time, do not fill the air through the air supplement assembly on the second air supply pipe, and pass through the air supply pipe on the first air supply pipe. The air replenishment component is filled with air until the feedback lights are on and the difference B is recorded. If the difference is n, then n/m is the air transfer ratio β of the air compressor. Comparing α and β can improve the accuracy of detection. Secondly, the purpose of testing through sampling components and testing components instead of a single air flow meter is to make the detection results more convincing. It uses a quantitative amount of air for testing, compared to a single air flow meter. The detection accuracy is easier to control, and the detection accuracy is higher; and a large number of one-way valves can ensure that the air follows the detection direction, further reducing the detection error; compared with ordinary valves, electric valves have an efficient control rate; The provision of multiple electric buttons (and the dislocation of the electric buttons inside the detection cavity) can ensure that the sampling airbag body and the detection airbag body are full of the sampling cavity and the detection cavity, because the sampling airbag body and the detection airbag body are respectively suitable for the sampling cavity and the detection cavity. Therefore, it can be judged whether the two are full of gas to ensure the accuracy of detection.

[0048] Example 2

[0049] An air compressor performance detection method, which is characterized in that it comprises the following steps:

[0050] S1 Pretreatment: Place the air compressor to be tested on the testing platform, and supply power to the circuit inside the U-shaped wire cavity and the spiral wire cavity. The sampling airbag body, the first air supply pipe, and the The second air supply pipe, the air compressor, the second air supply pipe and the air in each detection airbag are vacuumed;

[0051] S2 gas sampling: close the valve on the first gas supply pipe, and supply gas to the inside of each sampling airbag body through the air pump, and complete the gas supply when all the test lights are on;

[0052] S3 Gas transfer: Open the valve on the first air supply pipe, and drive the air compressor to extract the air from each sampling airbag body, and pour it into the detection tank;

[0053] S4 Full layer by layer: Open the electric valve on the top of the detection body on the first layer, and fill the detection airbag body on the first layer. When the feedback light on the side wall of the detection body on the first layer lights up, open the electric valve on the detection body on the second layer. Refill the second layer of detection airbag body. When the feedback light on the side wall of the second layer detection body lights up, open the electric valve on the third detection body until the gas inside each sampling airbag is consumed;

[0054] S5 Gas supplement: Close the electric valve of the gas supplement cylinder on the first gas supply pipe, and fill the system with supplementary gas through the one-way valve on the gas supplement cylinder;

[0055] S6 inspection: When the feedback lights on the side walls of each inspection body are all lit, the air compressor is normal.

[0056] In the specific embodiment of the present invention, the amount of supplementary gas in the S5 step is equivalent to the sum of the volume of the second air supply pipe and the volume of the section between the air supplement component on the first air supply pipe and the air compressor.

[0057] In the specific embodiment of the present invention, when the feedback light part in step S6 is not lit, the electric valve on the air supplement assembly on the second air supply pipe is closed, and gas is injected into the second air supply pipe through the air supplement assembly. Until the feedback lights on the side walls of each detection body are all lit, stop the inflation and record the difference A of the air flowmeter on the air supplement assembly.

[0058] In the specific embodiment of the present invention, after repeating the steps S1 to S5, the electric valve on the air supply pipe on the first air supply pipe is closed, and gas is injected into the first air supply pipe through the air supply pipe until each detection body When the feedback lights on the side wall all light up, stop the inflation, and record the difference B of the air flow meter on the air supplement assembly, and compare the difference A with the difference B.

[0059] By adopting the above technical scheme: B:A is the air transfer ratio of the air compressor.

[0060] Example 3, the difference from Example 2 is

[0061] An air compressor performance detection method, which is characterized in that it comprises the following steps:

[0062] S1 Pretreatment: Place the air compressor to be tested on the testing platform, and supply power to the circuit inside the U-shaped wire cavity and the spiral wire cavity. The sampling airbag body, the first air supply pipe, and the The second air supply pipe, the air compressor, the second air supply pipe and the air in each detection airbag are vacuumed;

[0063] S2 gas sampling: close the valve on the first gas supply pipe, and supply gas to the inside of each sampling airbag body through the air pump, and complete the gas supply when all the test lights are on;

[0064] S3 Gas transfer: Open the valve on the first air supply pipe, and drive the air compressor to extract the air from each sampling airbag body, and pour it into the detection tank;

[0065] S4 Full layer by layer: Open the electric valve on the top of the detection body on the first layer, and fill the detection airbag body on the first layer. When the feedback light on the side wall of the detection body on the first layer lights up, open the electric valve on the detection body on the second layer. Refill the second layer of detection airbag body. When the feedback light on the side wall of the second layer detection body lights up, open the electric valve on the third detection body until the gas inside each sampling airbag is consumed (the total amount is C);

[0066] S5 Gas supplement: Close the electric valve of the gas supplement cylinder on the first gas supply pipe, and fill the system with supplementary gas through the one-way valve on the gas supplement cylinder;

[0067] S6 inspection: When the feedback lights on the side walls of each inspection body are all lit, the air compressor is normal.

[0068] In the specific embodiment of the present invention, the amount of supplementary gas in the S5 step is equivalent to the sum of the volume of the second air supply pipe and the volume of the section between the air supplement component on the first air supply pipe and the air compressor.

[0069] In the specific embodiment of the present invention, when the feedback light part in step S6 is not lit, the electric valve on the air supplement assembly on the second air supply pipe is closed, and gas is injected into the second air supply pipe through the air supplement assembly. Until the feedback lights on the side walls of each detection body are all lit, stop the inflation and record the difference A of the air flowmeter on the air supplement assembly.

[0070] By adopting the above technical scheme: (C-A)/C is the air transfer ratio of the air compressor.