CN111413052B - Static pressure maintaining detection device for spray valve - Google Patents
Static pressure maintaining detection device for spray valve Download PDFInfo
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- CN111413052B CN111413052B CN202010303134.6A CN202010303134A CN111413052B CN 111413052 B CN111413052 B CN 111413052B CN 202010303134 A CN202010303134 A CN 202010303134A CN 111413052 B CN111413052 B CN 111413052B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
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Abstract
The invention discloses a static pressure maintaining detection device for a spray valve, which comprises a rack, wherein the rack is divided into three layers, the upper layer of the rack is provided with a master control box, the middle layer of the rack is provided with a tooling plate, the lower layer of the rack is provided with an air pump, the tooling plate is provided with a plurality of groups of main measurement units, and the master control box is provided with a plurality of groups of main control units which are in one-to-one correspondence with the main measurement units; the tool plate is also provided with a supporting plate, the supporting plate is provided with a retest unit, and the master control box is also provided with a retest unit corresponding to the retest unit. The pressure-maintaining and pressure-releasing device is simple in structure, convenient to operate, quick and effective in detection method, capable of automatically controlling pressure maintaining and pressure releasing, convenient for batch detection and capable of improving quality control of enterprises.
Description
Technical Field
The invention relates to a detection tool, in particular to a static pressure maintaining detection device for a spray valve.
Background
In the process of producing the high-frequency spray valve, the spray valve is integrally provided with a plurality of joints and sealing pieces, and the requirement on the accuracy of the static leakage index of the spray valve is high, so that in order to improve the delivery quality, the spray valve is required to be subjected to pressure maintaining test before delivery.
Disclosure of Invention
The invention aims to provide a static pressure maintaining detection device of a spray valve, which can simulate different working conditions so as to solve the problems in the background technology.
In order to solve the technical problems, the invention adopts the technical scheme that:
a static pressure maintaining detection device for a spray valve comprises a frame which is divided into three layers, wherein the upper layer of the frame is provided with a master control box, wherein the middle layer is provided with a tooling plate, the lower layer is provided with an air pump, the tooling plate is provided with a plurality of groups of main measuring units, each group of main measuring units is provided with six main measuring spray valve interfaces, the main control box is provided with a plurality of groups of main control units which are in one-to-one correspondence with the main measurement units, each group of main control units is provided with a main control pressure gauge and a main control pressure relief switch, six main measurement spray valve interfaces on each group of main measurement units are connected in parallel on a main measurement branch pipe through pipelines, each main measurement branch pipe is communicated with a main measurement main pipe, each main measurement main pipe is provided with a main measurement electromagnetic switch valve, each main measurement main pipe is respectively communicated with the main control pressure gauge on each group of main control units, and the main control pressure relief switch on each group of main control units respectively controls and is connected with the main measurement electromagnetic switch valve on each main measurement main pipe;
the tool plate is also provided with a supporting plate, the supporting plate is provided with a retest unit, the retest unit is provided with six retest spray valve interfaces, the main control box is also provided with a retest unit corresponding to the retest unit, the retest unit is provided with six retest pressure gauges and a retest pressure relief switch, the six retest spray valve interfaces on the retest unit are all connected in parallel on a retest branch pipe through pipelines, the retest branch pipe is communicated with a retest main pipe, the retest main pipe is provided with a retest electromagnetic switch valve, the pipelines communicated between the six retest spray valve interfaces and the retest branch pipe are respectively communicated with the six retest pressure gauges on the retest unit one by one, and the retest pressure relief switch is in control connection with the retest electromagnetic switch valve;
a three-way electromagnetic valve is arranged on the air outlet main pipe of the air pump, one air outlet end of the three-way electromagnetic valve is communicated with the main measuring main pipes, and the other air outlet end of the three-way electromagnetic valve is communicated with the retest main pipe;
six complex control pressure meters on the complex control unit are respectively marked as A1, A2, A3, A4, A5 and A6, and six complex measurement spray valve interfaces respectively corresponding to the six complex control pressure meters are respectively marked as B1, B2, B3, B4, B5 and B6;
the detection method of the spray valve static pressure maintaining detection device specifically comprises the following steps:
firstly, mounting tested spray valves on six main spray valve interfaces on each group of main test units, controlling a three-way electromagnetic valve to enable the main test units to be in a ventilation state and enable the retest units to be in an unventilated state, then starting an air pump to enable the pointer of each main control pressure gauge to reach a specified pressure value, then starting a main control pressure relief switch to enable the main electromagnetic switch valve to be opened, cutting off a channel of a main test pipe, enabling the tested spray valves on the interfaces of the main test spray valves to be in a pressure maintaining state, simultaneously closing the air pump, respectively observing whether the pointers of the main control pressure gauges on each group of main control units drop below specified air pressure within specified time, and if the pointers of the main control pressure gauges on each group of main control units do not drop below the specified air pressure, judging the tested spray valves to be qualified products;
if the pointer of one group of master control pressure gauges drops below the specified air pressure, six tested spray valves of the group are regarded as unqualified products, then the master control pressure relief switches of the corresponding group are closed, six tested spray valves which are regarded as unqualified products and arranged on the interfaces of the six master spray valves of the group are subjected to pressure relief, the six tested spray valves are respectively taken down and arranged on the interfaces of the six retest spray valves on the retest unit, the marks of the interfaces of the six retest spray valves are respectively B1, B2, B3, B4, B5 and B6, then the master unit is in an unventifiable state by controlling a three-way electromagnetic valve, the retest unit is in a breathable state, an air pump is started, the retest electromagnetic switch is opened after the pointer of each retest pressure gauge reaches the specified pressure value, the retest electromagnetic switch is opened, the passage of the retest main pipe is cut off, and the tested spray valves on the interfaces of each master spray valve are in a pressure maintaining state, and simultaneously closing the air pump, respectively observing six re-control pressure meters on the control unit, wherein the marks of the six re-control pressure meters are respectively A1, A2, A3, A4, A5 and A6, and respectively correspond to the marks of the six re-measurement spray valve interfaces B1, B2, B3, B4, B5 and B6 one by one, and finding out unqualified products in the six re-control pressure meters according to the deflection condition of the pointers of the six re-control pressure meters.
Preferably, the main testing spray valve interface, the retest spray valve interface and the tested spray valve are connected by adopting quick connectors.
The invention has the beneficial effects that:
the invention provides a static pressure maintaining detection device of a spray valve, which is simple in structure, convenient to operate, quick and effective in detection method, capable of automatically controlling pressure maintaining and releasing, convenient for batch detection and capable of improving quality control of enterprises.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the piping connection of the air pump to the units;
in the figure: 1. the system comprises a rack, 2, a main control box, 3, a tooling plate, 4, an air pump, 5, a main measurement spray valve interface, 6, a main control pressure gauge, 7, a main control pressure relief switch, 8, a main measurement branch pipe, 9, a main measurement main pipe, 10, a main measurement electromagnetic switch valve, 11, a supporting plate, 12, a retest spray valve interface, 13, a retest pressure gauge, 14, a retest pressure relief switch, 15, a retest branch pipe, 16, a retest main pipe, 17, a retest electromagnetic switch valve, 18, an air outlet main pipe, 19 and a three-way electromagnetic valve.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in figure 1, the invention provides a spray valve static pressure maintaining detection device, wherein the spray valve static pressure maintaining detection device comprises a frame 1, the frame 1 is divided into three layers, the upper layer is provided with a master control box 2, the middle layer is provided with a tooling plate 3, the lower layer is provided with an air pump 4, the tooling plate 3 is provided with a plurality of groups of master measuring units, each group of master measuring units is provided with six master measuring spray valve interfaces 5, the master control box 1 is provided with a plurality of groups of master control units corresponding to the plurality of groups of master measuring units one by one, each group of master control units is provided with a master control pressure gauge 6 and a master control pressure relief switch 7, the six master measuring spray valve interfaces 5 on each group of master measuring units are connected in parallel on a master measuring branch pipe 8 through pipelines, each master measuring branch pipe 8 is communicated with a master measuring main pipe 9, each master measuring main pipe 9 is provided with a master electromagnetic switch valve 10, each master measuring main pipe 9 is respectively communicated with the master pressure gauge 6 on each group of master control unit, the main control pressure relief switch 7 on each group of main control units respectively controls and is connected with a main electromagnetic switch valve 10 on each main test main pipe 9;
the tool plate 3 is also provided with a supporting plate 11, the supporting plate 11 is provided with a retest unit, the retest unit is provided with six retest spray valve interfaces 12, the master control box 2 is also provided with a retest unit corresponding to the retest unit, the retest unit is provided with six retest pressure meters 13 and a retest pressure relief switch 14, the six retest spray valve interfaces 12 on the retest unit are all connected in parallel on a retest branch pipe 15 through a pipeline, the retest branch pipe 15 is communicated with a retest main pipe 16, the retest main pipe 16 is provided with a retest electromagnetic switch valve 17, the pipelines communicated between the six retest spray valve interfaces 12 and the retest branch pipe 15 are respectively communicated with the six retest pressure meters 13 on the retest unit one by one, and the retest pressure relief switch 14 is in control connection with the retest electromagnetic switch valve 17;
a three-way electromagnetic valve 19 is arranged on an air outlet main pipe 18 of the air pump 4, one air outlet end of the three-way electromagnetic valve 19 is communicated with the main measuring main pipes 8, and the other air outlet end is communicated with a retest main pipe 16;
six multi-control pressure meters 13 on the multi-control unit are respectively marked as A1, A2, A3, A4, A5 and A6, and six multi-measurement spray valve interfaces 12 respectively corresponding to the six multi-control pressure meters 13 are respectively marked as B1, B2, B3, B4, B5 and B6.
The main testing spray valve interface 5, the retesting spray valve interface 12 and the tested spray valve are connected by adopting quick joints.
The detection method of the spray valve static pressure maintaining detection device comprises the following steps:
firstly, mounting tested spray valves on six main spray valve interfaces 5 on each group of main test units, controlling a three-way electromagnetic valve 19 to enable the main test units to be in a ventilation state and enable the retest units to be in an non-ventilation state, then starting an air pump 4 to enable the pointer of each main control pressure gauge 6 to reach a specified pressure value, then starting a main control pressure relief switch 7 to enable a main test electromagnetic switch valve 10 to be opened, cutting off a passage of a main test main pipe 9, enabling the tested spray valves on each main spray valve interface 5 to be in a pressure maintaining state, simultaneously closing the air pump 4, respectively observing whether the pointers of the main control pressure gauges 6 on each group of main control units fall below specified air pressure within specified time, and if the pointers of the main control pressure gauges on each group of main control units do not fall or do not fall below the specified air pressure, determining the tested spray valves as qualified products;
if the pointer of one group of the master control pressure gauge 6 is reduced to be below the specified air pressure, the six tested spray valves of the group are regarded as unqualified products, then the master control pressure relief switch 7 corresponding to the group is closed, the six tested spray valves which are regarded as unqualified products and arranged on the six master test spray valve interfaces 5 of the group are subjected to pressure relief, the six tested spray valves are respectively taken down and arranged on the six retest spray valve interfaces 12 on the retest unit, the marks of the six retest spray valve interfaces 12 are respectively B1, B2, B3, B4, B5 and B6, then the master test unit is in an unventifiable state by controlling the three-way electromagnetic valve 19, the retest unit is in an aerated state, the air pump 4 is started, after the pointer of each retest pressure gauge 13 reaches the specified pressure value, the retest pressure relief switch 14 is opened, the retest electromagnetic switch valve 17 is opened, the passage of the retest main pipe 16 is cut off, and the tested spray valves on each master test spray valve interface 12 are in a pressure maintaining state, and simultaneously closing the air pump 4, respectively observing six re-control pressure meters 13 on the control unit, wherein the marking numbers of the six re-control pressure meters 13 are respectively A1, A2, A3, A4, A5 and A6, and respectively correspond to the marks B1, B2, B3, B4, B5 and B6 of the six re-control pressure meter interfaces 12 one by one, and finding out unqualified products in the six re-control pressure meters according to the deflection condition of the pointers of the six re-control pressure meters 13 so as to bring the unqualified products out.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (2)
1. A static pressure maintaining detection device of a spray valve is characterized by comprising a frame, wherein the frame is of a three-layer structure, the upper layer is provided with a master control box, the middle layer is provided with a tooling plate, the lower layer is provided with an air pump, the tooling plate is provided with a plurality of groups of main measuring units, each group of main measuring units is provided with six main measuring spray valve connectors, the main control box is provided with a plurality of groups of main control units which are in one-to-one correspondence with the main measurement units, each group of main control units is provided with a main control pressure gauge and a main control pressure relief switch, six main measurement spray valve interfaces on each group of main measurement units are connected in parallel on a main measurement branch pipe through pipelines, each main measurement branch pipe is communicated with a main measurement main pipe, each main measurement main pipe is provided with a main measurement electromagnetic switch valve, each main measurement main pipe is respectively communicated with the main control pressure gauge on each group of main control units, and the main control pressure relief switch on each group of main control units respectively controls and is connected with the main measurement electromagnetic switch valve on each main measurement main pipe;
the tool plate is also provided with a supporting plate, the supporting plate is provided with a retest unit, the retest unit is provided with six retest spray valve interfaces, the main control box is also provided with a retest unit corresponding to the retest unit, the retest unit is provided with six retest pressure gauges and a retest pressure relief switch, the six retest spray valve interfaces on the retest unit are all connected in parallel on a retest branch pipe through pipelines, the retest branch pipe is communicated with a retest main pipe, the retest main pipe is provided with a retest electromagnetic switch valve, the pipelines communicated between the six retest spray valve interfaces and the retest branch pipe are respectively communicated with the six retest pressure gauges on the retest unit one by one, and the retest pressure relief switch is in control connection with the retest electromagnetic switch valve;
a three-way electromagnetic valve is arranged on the air outlet main pipe of the air pump, one air outlet end of the three-way electromagnetic valve is communicated with the main measuring main pipes, and the other air outlet end of the three-way electromagnetic valve is communicated with the retest main pipe;
six complex control pressure meters on the complex control unit are respectively marked as A1, A2, A3, A4, A5 and A6, and six complex measurement spray valve interfaces respectively corresponding to the six complex control pressure meters are respectively marked as B1, B2, B3, B4, B5 and B6;
the detection method of the spray valve static pressure maintaining detection device specifically comprises the following steps:
firstly, mounting tested spray valves on six main spray valve interfaces on each group of main test units, controlling a three-way electromagnetic valve to enable the main test units to be in a ventilation state and enable the retest units to be in an unventilated state, then starting an air pump to enable the pointer of each main control pressure gauge to reach a specified pressure value, then starting a main control pressure relief switch to enable the main electromagnetic switch valve to be opened, cutting off a channel of a main test pipe, enabling the tested spray valves on the interfaces of the main test spray valves to be in a pressure maintaining state, simultaneously closing the air pump, respectively observing whether the pointers of the main control pressure gauges on each group of main control units drop below specified air pressure within specified time, and if the pointers of the main control pressure gauges on each group of main control units do not drop below the specified air pressure, judging the tested spray valves to be qualified products;
if the pointer of one group of master control pressure gauges drops below the specified air pressure, six tested spray valves of the group are regarded as unqualified products, then the master control pressure relief switches of the corresponding group are closed, six tested spray valves which are regarded as unqualified products and arranged on the interfaces of the six master spray valves of the group are subjected to pressure relief, the six tested spray valves are respectively taken down and arranged on the interfaces of the six retest spray valves on the retest unit, the marks of the interfaces of the six retest spray valves are respectively B1, B2, B3, B4, B5 and B6, then the master unit is in an unventifiable state by controlling a three-way electromagnetic valve, the retest unit is in a breathable state, an air pump is started, the retest electromagnetic switch is opened after the pointer of each retest pressure gauge reaches the specified pressure value, the retest electromagnetic switch is opened, the passage of the retest main pipe is cut off, and the tested spray valves on the interfaces of each master spray valve are in a pressure maintaining state, and simultaneously closing the air pump, respectively observing six re-control pressure meters on the control unit, wherein the marks of the six re-control pressure meters are respectively A1, A2, A3, A4, A5 and A6, and respectively correspond to the marks of the six re-measurement spray valve interfaces B1, B2, B3, B4, B5 and B6 one by one, and finding out unqualified products in the six re-control pressure meters according to the deflection condition of the pointers of the six re-control pressure meters.
2. The injection valve static pressure maintaining detection device of claim 1, wherein the main test injection valve interface, the retest injection valve interface and the injection valve to be tested are connected by using quick connectors.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010303134.6A CN111413052B (en) | 2020-04-17 | 2020-04-17 | Static pressure maintaining detection device for spray valve |
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| CN202010303134.6A CN111413052B (en) | 2020-04-17 | 2020-04-17 | Static pressure maintaining detection device for spray valve |
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| CN111413052A CN111413052A (en) | 2020-07-14 |
| CN111413052B true CN111413052B (en) | 2022-03-18 |
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