CN204716662U - A kind of pressure control circuit - Google Patents
A kind of pressure control circuit Download PDFInfo
- Publication number
- CN204716662U CN204716662U CN201520168128.9U CN201520168128U CN204716662U CN 204716662 U CN204716662 U CN 204716662U CN 201520168128 U CN201520168128 U CN 201520168128U CN 204716662 U CN204716662 U CN 204716662U
- Authority
- CN
- China
- Prior art keywords
- pressure
- low
- pressure passage
- control circuit
- passage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of pressure control circuit, belong to signal detecting field.Described model utility comprises the first low-pressure passage, the second low-pressure passage, the first high-pressure passage.A kind of pressure control circuit that the present embodiment provides, have employed the Placement of low pressure, high-pressure passage separation, under being applicable to low pressure test environment different from high pressure respectively, Pressure testing is carried out to water route device, be convenient to like this detect multiple equipment simultaneously, and relative to existing detection facility, there is the simple feature of structure, the volume of detection facility can be reduced, improve the portability of detection facility.
Description
Technical field
The utility model relates to signal detecting field, particularly a kind of pressure control circuit.
Background technique
Liquid fundamental circuit is the control oil circuit control for completing specific function, is made up of multiple hydraulic element.Complicated hydraulic system is all made up of hydraulic elementary circuits, and therefore ensureing that in liquid fundamental circuit, pressure is normal, is the core ensureing hydraulic system stable operation.
The pressure ensured in liquid fundamental circuit by pressure control circuit is normal, and in existing pressure control circuit, the concrete structure of this pressure control circuit as shown in Figure 1, comprises low tension loop and high tension loop.Wherein be connected to the parts such as flowmeter, pressure transducer, valve in low tension loop, high tension loop comprises water tank, manual pressure test pump and valve etc., and this pressure control circuit also comprises the parts such as water tank and vertical multi-stage centrifugal pump in addition.
Realizing in process of the present utility model, inventor finds that prior art at least exists following problem:
In existing pressure control circuit, because the valve used in low pressure, high tension loop is too much, make the mechanism of detection facility complicated, bulky, be not easy to carry.
Summary of the invention
In order to solve the problem of prior art, the utility model provides a kind of pressure control circuit, and described pressure control circuit, comprising:
First low-pressure passage, one end of described first low-pressure passage and first of water tank exports and is connected, the other end of described first low-pressure passage is detection port, and described first low-pressure passage is provided with the first ball valve, centrifugal pump, reducing tee, flowmeter, pressure transducer, the second ball valve;
Second low-pressure passage, one end of described second low-pressure passage and second of described water tank exports and is connected, and the other end of described second low-pressure passage is connected with described first low-pressure passage by described reducing tee, and described second low-pressure passage is provided with the 3rd ball valve;
First high-pressure passage, one end of described first high-pressure passage is connected with gas-liquid booster pump, and the other end of described first high-pressure passage is detection port, and described first high-pressure passage is provided with the 4th ball valve.
Optionally, described first high-pressure passage, comprising:
High pressure branch road, described high pressure branch road is provided with pressure transducer and pressure release needle-valve.
Optionally, in described first low-pressure passage, also comprise:
Described centrifugal pump is exported with first of described water tank by the PPR pipe of D63 and is connected, and the PPR pipe of described D63 is provided with the first ball valve;
The PPR pipe of D50 is used between described reducing tee and described flowmeter.
Optionally, in described second low-pressure passage, also comprise:
Use the PPR pipe of D25 between second of described reducing tee and described water tank exports, the PPR pipe of described D25 is provided with the 3rd ball valve.
Optionally, in described first high-pressure passage, also comprise:
Between described pressure transducer and described pressure release needle-valve, use copper pipe to connect.
The beneficial effect that the technological scheme that the utility model provides is brought is:
By the Placement that have employed low pressure, high-pressure passage is separated, under being applicable to low pressure test environment different from high pressure respectively, Pressure testing is carried out to water route device, be convenient to like this detect multiple equipment simultaneously, and relative to existing detection facility, there is the simple feature of structure, the volume of detection facility can be reduced, improve the portability of detection facility.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical solution of the utility model, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the existing pressure-detecting device that the utility model provides;
Fig. 2 is the structural representation of a kind of pressure control circuit that the utility model provides.
Embodiment
For making structure of the present utility model and advantage clearly, below in conjunction with accompanying drawing, structure of the present utility model is further described.
Embodiment one
The utility model provides a kind of pressure control circuit 1, and as shown in Figure 2, described pressure control circuit 1, comprising:
First low-pressure passage 11, described one end of first low-pressure passage 11 exports 121 with first of water tank 12 and is connected, the other end of described first low-pressure passage 11 is detection port 111, and described first low-pressure passage 11 is provided with the first ball valve 112, centrifugal pump 113, reducing tee 114, flowmeter 115, pressure transducer 116, second ball valve 117;
Second low-pressure passage 13, one end of described second low-pressure passage 13 exports 122 with second of described water tank 12 and is connected, the other end of described second low-pressure passage 13 is connected with described first low-pressure passage 11 by described reducing tee 114, and described second low-pressure passage 13 is provided with the 3rd ball valve 131;
First high-pressure passage 14, one end of described first high-pressure passage 14 is connected with gas-liquid booster pump 141, and the other end of described first high-pressure passage 14 is detection port 141, and described first high-pressure passage 14 is provided with the 4th ball valve 142.
In force, the first low-pressure passage 11 and the second low-pressure passage 13 form low tension loop jointly, for carrying out the Pressure testing in loop to low-voltage equipment.
Concrete, in the first low-pressure passage 11, use centrifugal pump 113 as the supercharging device in low tension loop, centrifugal pump 113 is here vertical multi-stage centrifugal pump, and the boost range of this pump is 0 ~ 0.7MPa, is 0 ~ 200L/min by range of flow.In actual use, completed from the operation of drawing water water tank 12 by centrifugal pump 113.In addition, in the first low-pressure passage, flowmeter 115 is also provided with, can the flow of liquid in signal piping, the detection range of flowmeter is 50 ~ 250L/min; Connecing a pressure transducer 116 after flowmeter 115, can detect the fluid pressure of now pipeline, the detection range of pressure transducer 116 is 0 ~ 0.7MPa.
The supercharging amplitude of this boost-up circuit is lower, can be used for the sealing and the intensity (dynamic pressure) that detect measured piece because sealing and (dynamic pressure) measure needed for pressure lower, ordinary circumstance is at below 0.7MPa; Flowmeter is equipped with again in this loop, can measure the flow of measured piece simultaneously.It is worth mentioning that why arrange the second low-pressure passage in low-pressure passage, being the operating temperature in order to reduce centrifugal pump 113, extending its working life, therefore, the second low-pressure passage also can be described as protective loop.
Relative, in the first high-pressure passage, be then the object being reached supercharging by gas-liquid booster pump 141, the boost range of this suction booster is 0-3MPa.The supercharging amplitude of this boost-up circuit is higher, is generally used for the intensity (static pressure) detecting measured piece, because the pressure needed for intensity (static pressure) measurement is higher, generally between 1.5MPa ~ 2.5MPa.
A kind of pressure control circuit that the present embodiment provides, have employed the Placement of low pressure, high-pressure passage separation, under being applicable to low pressure test environment different from high pressure respectively, Pressure testing is carried out to water route device, be convenient to like this detect multiple equipment simultaneously, and relative to existing detection facility, there is the simple feature of structure, the volume of detection facility can be reduced, improve the portability of detection facility.
Optionally, described first high-pressure passage 14, comprising:
High pressure branch road 15, described high pressure branch road 15 is provided with pressure transducer 151 and pressure release needle-valve 152.
In force, the first high tension loop 14 is connected to pressure release needle-valve 152, this pressure release needle-valve 152 is manual designs, can be manually opened during overpressure in this first high-pressure passage, so that damage equipment when avoiding high tension loop overpressure or equipment to occur abnormal.
Safer compared to Placement of the prior art, the protective measure of the increase pressure release needle-valve 152 taked in the first high-pressure passage here, can effectively prevent boost-up circuit because of the factor such as pressure is excessive and the fault produced.
Optionally, in described first low-pressure passage 11, also comprise:
Described centrifugal pump 113 exports 121 by the PPR pipe of D63 with first of described water tank 12 and is connected, and the PPR pipe of described D63 is provided with the first ball valve 112;
The PPR pipe of D50 is used between described reducing tee 114 and described flowmeter 115.
In force, one end of this centrifugal pump 113 is connected with the PPR pipe of water tank by D63, and draws water from water tank 12, and the first ball valve is housed between centrifugal pump 113 and water tank 12, and the concrete model of ball valve is DN63.When this pressure control circuit actual motion, open the first ball valve, start centrifugal pump 113, realize the object of drawing water from water tank 12.
The outlet end of centrifugal pump 113 is connected by reducing tee 114, and afterwards by the PPR pipe connection traffic meter 115 of D50, can realize the detection to fluid flow in pipeline, the detection range of this flowmeter 115 is 50 ~ 250L/min; Connecing a pressure transducer 116 after flowmeter 115, can detect the fluid pressure of now pipeline, the detection range of pressure transducer 116 is 0 ~ 0.7MPa; Be connected to the second ball valve after pressure transducer 116, concrete model is DN50, and the second ball valve outlet end connects with measured piece.
Noticeable, the supercharging amplitude in the first low-pressure passage is lower, can be used for the sealing and the intensity (dynamic pressure) that detect measured piece because sealing and (dynamic pressure) measure needed for pressure lower, ordinary circumstance is at below 0.7MPa; Flowmeter is equipped with again in this loop, can measure the flow of measured piece simultaneously.
Optionally, in described second low-pressure passage 13, also comprise:
Second of described reducing tee 114 and described water tank 12 exports the PPR pipe using D25 between 122, and the PPR pipe of described D25 is provided with the 3rd ball valve 131.
In force; the outlet end of this centrifugal pump 115 is provided with the second low-pressure passage; be connected with water tank 12 by using PPR pipe D25 and the 3rd ball valve DN25 in the second low-pressure passage; in actual motion; by the temperature that can reduce centrifugal pump 115 of this second low-pressure passage, the second low-pressure passage is the protective loop of the first low-pressure passage in essence.
Optionally, in described first high-pressure passage 14, also comprise:
Between described pressure transducer 151 and described pressure release needle-valve 152, use copper pipe to connect.
In force, in the 4th ball valve front end of the first high-pressure passage, draw a pressure release needle-valve 152, the gas left over can be discharged when pressure checking device runs, and the pressure in pipeline can be made to reduce in pipeline; Pressure release needle-valve 152 connects the copper pipe that is specially Φ 6, and taken out of liquid can be discharged when Exhaust Gas by this copper pipe.Thus it is convenient to reach control, measure accurately, safe and reliable during use.
The supercharging amplitude of this high-pressure passage is higher, is generally used for the intensity (static pressure) detecting measured piece, because the pressure needed for intensity (static pressure) measurement is higher, generally between 1.5MPa ~ 2.5MPa.
In use, as needed measured intensity (static pressure), measured piece can be placed in the end of high-pressure passage, and be closed by the spool of measured piece, water outlet is opened, and is pressurized to 2.5 ± 0.05MPa, and pressurize 60 ± 5s, whether rear observation measured piece has damage.
As needed measured intensity (dynamic pressure), measured piece can be placed in the end of low tension loop, and be opened by the spool of measured piece, water outlet is opened, and is pressurized to 0.4 ± 0.02MPa, and pressurize 60 ± 5s, whether rear observation measured piece has damage.
As measured sealing, measured piece can be placed in low tension loop end, and be closed by the spool of measured piece, water outlet is opened, and is pressurized to 0.1 ± 0.01MPa, and pressurize 60 ± 5s, this for detect under static pressure environment, has damage when rear observation measured piece; Opened by spool, water outlet is opened again, and is pressurized to 0.4 ± 0.02MPa, and pressurize 60 ± 5s, this for detect under dynamic pressure environment, has damage when rear observation measured piece.
A kind of pressure control circuit that the present embodiment provides, have employed the Placement of low pressure, high-pressure passage separation, under being applicable to low pressure test environment different from high pressure respectively, Pressure testing is carried out to water route device, be convenient to like this detect multiple equipment simultaneously, and relative to existing detection facility, there is the simple feature of structure, the volume of detection facility can be reduced, improve the portability of detection facility.
It should be noted that: the pressure control circuit that above-described embodiment provides carries out the embodiment of Pressure testing, only as explanation in actual applications in this pressure control circuit, can also use in other application scenarios according to actual needs and by above-mentioned pressure control circuit, its specific implementation process is similar to above-described embodiment, repeats no more here.
Each sequence number in above-described embodiment, just to describing, does not represent the sequencing in the assembling of each parts or using process.
The foregoing is only embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (5)
1. a pressure control circuit, is characterized in that, described pressure control circuit, comprising:
First low-pressure passage, one end of described first low-pressure passage and first of water tank exports and is connected, the other end of described first low-pressure passage is detection port, and described first low-pressure passage is provided with the first ball valve, centrifugal pump, reducing tee, flowmeter, pressure transducer, the second ball valve;
Second low-pressure passage, one end of described second low-pressure passage and second of described water tank exports and is connected, and the other end of described second low-pressure passage is connected with described first low-pressure passage by described reducing tee, and described second low-pressure passage is provided with the 3rd ball valve;
First high-pressure passage, one end of described first high-pressure passage is connected with gas-liquid booster pump, and the other end of described first high-pressure passage is detection port, and described first high-pressure passage is provided with the 4th ball valve.
2. pressure control circuit according to claim 1, is characterized in that, described first high-pressure passage, comprising:
High pressure branch road, described high pressure branch road is provided with pressure transducer and pressure release needle-valve.
3. pressure control circuit according to claim 1, is characterized in that, in described first low-pressure passage, also comprises:
Described centrifugal pump is exported with first of described water tank by the PPR pipe of D63 and is connected, and the PPR pipe of described D63 is provided with the first ball valve;
The PPR pipe of D50 is used between described reducing tee and described flowmeter.
4. pressure control circuit according to claim 1, is characterized in that, in described second low-pressure passage, also comprises:
Use the PPR pipe of D25 between second of described reducing tee and described water tank exports, the PPR pipe of described D25 is provided with the 3rd ball valve.
5. pressure control circuit according to claim 2, is characterized in that, in described first high-pressure passage, also comprises:
Between described pressure transducer and described pressure release needle-valve, use copper pipe to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168128.9U CN204716662U (en) | 2015-03-24 | 2015-03-24 | A kind of pressure control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520168128.9U CN204716662U (en) | 2015-03-24 | 2015-03-24 | A kind of pressure control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204716662U true CN204716662U (en) | 2015-10-21 |
Family
ID=54315663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520168128.9U Expired - Fee Related CN204716662U (en) | 2015-03-24 | 2015-03-24 | A kind of pressure control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204716662U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111399557A (en) * | 2020-02-26 | 2020-07-10 | 上海交通大学 | Automatic particle concentration regulating system for loop laser particle velocity measurement |
-
2015
- 2015-03-24 CN CN201520168128.9U patent/CN204716662U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111399557A (en) * | 2020-02-26 | 2020-07-10 | 上海交通大学 | Automatic particle concentration regulating system for loop laser particle velocity measurement |
| CN111399557B (en) * | 2020-02-26 | 2021-08-06 | 上海交通大学 | Automatic particle concentration regulating system for loop laser particle velocity measurement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104359661A (en) | Universal valve performance test device | |
| CN206710039U (en) | It is a kind of special full-automatic to suppress equipment | |
| CN201993208U (en) | Bogie pipeline pressure-maintaining testing device | |
| CN204716662U (en) | A kind of pressure control circuit | |
| CN202676413U (en) | Water filling test device of transformer oil tank | |
| CN205157337U (en) | Polylinker pipeline pressure testing device | |
| CN206177520U (en) | Pipeline pressure testing buffer | |
| CN104236938A (en) | Static pressure and bursting device of water treatment device | |
| CN203798510U (en) | Valve water pressure test stand | |
| CN210242773U (en) | Pressing exhaust device of water pipe type settlement gauge | |
| CN209495811U (en) | A kind of underwater leakage detection equipment of pipe fitting for testing flow-limiting valve performance state | |
| CN207336001U (en) | A kind of valve leak pressure testing device | |
| CN209908896U (en) | Hydraulic oil filter comprehensive test oil way system | |
| CN201852739U (en) | Pipeline pressure fluctuation experiment device | |
| CN204373845U (en) | Tensimeter dynamic pressure fatigue test device | |
| CN211061130U (en) | Die casting machine oil cooler leak hunting device | |
| CN201876392U (en) | Hydraulic pressure test device for vehicle-mounted steel can bodies | |
| CN202837104U (en) | Gas cylinder hydrostatic test device | |
| CN203259321U (en) | Instrument pipeline pressure test device | |
| CN208254552U (en) | A kind of thermal test flow differential pressure transmitter attachment device | |
| CN204188422U (en) | A kind of pipeline gas enclosure collects measurement mechanism | |
| CN207163676U (en) | Quick detection speed regulator presses oil tank arrangement and system | |
| CN202916142U (en) | Pipeline pressure test head device | |
| CN201788001U (en) | Multifunctional checkout console for water meters and flowmeters | |
| CN202614482U (en) | Air-tightness detecting device of plunger-type cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151021 Termination date: 20180324 |