CN205538610U - A dust and sand feed arrangement for sand and dust test chamber - Google Patents
A dust and sand feed arrangement for sand and dust test chamber Download PDFInfo
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- CN205538610U CN205538610U CN201620393279.9U CN201620393279U CN205538610U CN 205538610 U CN205538610 U CN 205538610U CN 201620393279 U CN201620393279 U CN 201620393279U CN 205538610 U CN205538610 U CN 205538610U
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Abstract
The utility model provides a dust and sand feed arrangement for sand and dust test chamber, includes feeding mechanism, charge -in pipeline, air conveying ware and air feed mechanism, air feed mechanism be connected with the air conveying ware, be equipped with pressure regulating piece and switch module on the gas supply line between air feed mechanism and air conveying ware in proper order, the switch module be connected with the controller to work through controller control switch subassembly. The utility model discloses it is succinct to have the structure, and automatically regulated dust and sand feeding size improves dust and sand and pours into the precision into, utilizes the air current to transport dust and sand and removes in to charge -in pipeline for the dust and sand that pour into charge -in pipeline into are even, the realization is satisfied the high efficiency of pouring into the dust and sand in the sand and dust test chamber into and is become more meticulous dust and sand entering charge -in pipeline's real time control for control of husky dust content and stable within range in the accuracy in the sand and dust test chamber avoid the husky dust content in the sand and dust test chamber undulant by a wide margin, have improved experimental precision and test effectiveness.
Description
Technical field
This utility model belongs to sand and dust test technical field, is specifically related to a kind of sand and dust feed arrangement for sand dust test chamber.
Background technology
The competition in market, the requirement of product quality, promote the development of environmental studies, the environmental suitability test of product, is an important means of product quality examination, and the feedback of environmental test result is the important evidence improving product quality.Sand and dust test is the climatic environment being had sand and dust by simulation, can product or equipment be carried out dust-proof test and dust storm test, the ability being defendd the ability blocking effect of dirt particle osmotic effect by these test evaluation electric and electronic product, sealing member etc. under the atmospheric action of dust and the ability that store and run.For dust and sand effect, it is distinctly claimed " sand-dust particulates is monitored and controlled continuously " according to standard GB/T 2423.37-2006, it is therefore desirable to compare actual measured value and the concentration set point of sand-dust concentration, in air channel, inject sand dust, to realize sand-dust particulates control in good time.At present, conventional sand and dust test box is typically directly connected with sand and dust feed arrangement, in sand and dust test box, first set the nominal concentrations value of sand and dust, then in sand dust test chamber, sand and dust are injected by sand and dust feed arrangement, in sand dust test chamber, inject sand and dust when the sand-dust particulates measured in real time in sand and dust test box is less than nominal concentrations value, but due to existing sand and dust feed arrangement, charging aperture is constant cross-section, single note dust quantity is fixed value, and therefore note dust quantity is difficult to accurately control；If the sectional area set is too small, note dirt efficiency is the lowest；If the sectional area set is excessive, then the control that note dust quantity can not be become more meticulous.Further, since sand dust particle diameter is small, adhesive force is big, and it is poor that existing sand and dust feed arrangement relies solely on gravity charging reliability, and it is relatively big that sand and dust inject the difficulty in sand dust test chamber, operation height, and injection rate is difficult to control.The most how during sand dust test chamber carries out sand and dust test, to control the sand-dust particulates in sand dust test chamber, and in sand dust test chamber lasting offer sand and dust, improve the effect of sand and dust test, it is achieved the high efficiency that sand and dust inject becomes research staff's urgent problem with becoming more meticulous.
Summary of the invention
In view of this, the technical problems to be solved in the utility model is that one is simple for structure, is automatically adjusted sand and dust charging size, improve sand and dust and inject the sand and dust feed arrangement for sand dust test chamber of precision, achieve the high efficiency of sand and dust injection and become more meticulous so that the sand-dust particulates scope in sand dust test chamber is precisely controlled.
In order to solve above-mentioned technical problem, this utility model uses following scheme to realize: a kind of sand and dust feed arrangement for sand dust test chamber, including feeding machanism, the feed pipe being connected with feeding machanism, the air conveyor being arranged between feeding machanism and feed pipe and the gas supply mechanism carrying gas to feed pipe, described gas supply mechanism is connected with air conveyor by steam line, the pressure regulation part for regulating gas supply mechanism conveying gas pressure size it is sequentially provided with and for regulating steam line gas break-make and the switch module of gas uninterrupted on steam line between gas supply mechanism and air conveyor；Described switch module is connected with controller, and controls switch module work by controller.
Wherein, described switch module includes electromagnetic valve and the ratio adjusting valve of regulation steam line gas flow size controlling steam line break-make, and ratio adjusting valve is connected with controller and is controlled by controller.
Wherein, described feeding machanism is sand and dust storage barrel.
Wherein, described gas supply mechanism is high-pressure air feed mechanism.
Wherein, described high-pressure air feed mechanism is air compressor.
Wherein, described pressure regulation part is pressure regulator valve.
Wherein, described controller is PID controller.
Compared with prior art, this utility model has simple for structure, is automatically adjusted sand and dust charging size, improves sand and dust and inject precision, utilize air-flow to transport sand and dust and move in feed pipe so that the sand and dust of injecting feeding pipeline are uniform；Controller carries out the data message of Real-time Collection according to the sand-dust particulates sensor being arranged in sand dust test chamber to the sand-dust particulates in sand dust test chamber simultaneously, adjust aperture and the cross-sectional area of gas entrance of ratio adjusting valve in good time, realize the adjustment of gas flow, thus realize sand and dust are entered the real-time control of feed pipe, meet the high efficiency of the sand and dust injected in sand dust test chamber and become more meticulous, sand-dust particulates in sand dust test chamber is controlled and stablizes in the range of accurate, avoid the sand-dust particulates fluctuation in sand dust test chamber, improve precision and the test effect of test.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1 feeding machanism, 11 feed pipes, 2 air conveyors, 3 gas supply mechanisms, 4 pressure regulation parts, 5 switch modules, 51 electromagnetic valves, 52 ratio adjusting valves, 6 controllers.
Detailed description of the invention
In order to allow those skilled in the art be more fully understood that the technical solution of the utility model, below in conjunction with the accompanying drawings this utility model is further elaborated.
As shown in Figure 1, a kind of sand and dust feed arrangement for sand dust test chamber, including supplying the feeding machanism 1 of sand and dust raw material, air conveyor 2 and gas supply mechanism 3 in sand dust test chamber, the discharging opening of described feeding machanism 1 is connected with one end of feed pipe 11, the other end of feed pipe 11 and the bottom accessing sand dust test chamber, injected in sand dust test chamber by the feed pipe 11 sand and dust in feeding machanism.Described air conveyor 2 is arranged between feeding machanism 1 and feed pipe 11, by air conveyor by sand and dust injecting feeding pipeline 11, changes traditional sand and dust gravity that utilizes and injects the mode of sand and dust to feed pipe, improve the efficiency that sand and dust inject.Described gas supply mechanism uses sand and dust feeding box, carries out feed by sand and dust feeding box.Described gas supply mechanism is connected with air conveyor 2 by steam line 31, and carries gas by sand and dust injecting feeding pipeline 11 by gas supply mechanism 3.The pressure regulation part 4 for regulating gas supply mechanism conveying gas pressure size it is sequentially provided with and for regulating the switch module 5 of steam line gas break-make and gas uninterrupted on steam line 31 between gas supply mechanism 3 and air conveyor 2；Described pressure regulation part 4 is near gas supply mechanism, and switch module is near air conveyor 2.Described pressure regulation part 4 is pressure regulator valve, by the gas pressure of pressure regulator valve regulation steam line.In order to better control over the flow velocity of gas, improve the precision of sand and dust injecting feeding pipeline, described described switch module 5 includes electromagnetic valve 51 and the ratio adjusting valve 52 of regulation steam line gas flow size controlling steam line break-make, and electromagnetic valve 51 is near pressure regulation part 4.The gas that gas supply mechanism produces enters feed pipe after sequentially passing through pressure regulation part 4 electromagnetic valve 51, ratio adjusting valve 52, air conveyor 2 by steam line, enters in sand dust test chamber finally by feed pipe.Wherein, described gas supply mechanism 3 is high-pressure air feed mechanism.Preferably high-pressure air feed mechanism is air compressor.
For the control preferably injected sand and dust, described sand and dust feed arrangement also includes a controller 6, and this controller is connected with ratio adjusting valve 52, and is controlled the size of the opening angle of ratio adjusting valve 52 by controller, it is achieved gasFlowControl.Described controller 6 is also connected with the sand-dust particulates sensor being arranged in sand dust test chamber, controller 6 is implemented to gather the sand-dust particulates in sand dust test chamber by sand-dust particulates sensor, and control, according to the sand-dust particulates of Real-time Collection, the size that the unlatching of ratio adjusting valve 52 is bigger, it is achieved to gasFlowControl.Described controller 6 is PID controller.
When sand dust test chamber carries out sand and dust test, opening electromagnetic valve, arrange the force value of pressure regulator valve and arrange the interior sand-dust particulates rated value arranged of sand dust test chamber, air compressor starts；The sand-dust particulates information in sand-dust particulates sensor Real-time Collection sand dust test chamber in sand dust test chamber, and sand-dust particulates information is sent to PID controller, PID controller compares according to the sand-dust particulates rated value of the real-time sand-dust particulates information gathered with the setting of setting, when the sand-dust particulates found in sand dust test chamber is relatively low, PID controller controls ratio adjusting valve and opens, and the size that passing ratio regulation valve is opened controls the flow of the gas passing ratio regulation valve that air compressor produces.After gas enters air conveyor by steam line, by the sand and dust injecting feeding pipeline bottom sand and dust feeding box；Gas is accelerated after the air inlet of air conveyor flows into air conveyor annular chamber, gas through accelerating flows through nozzle ring at a high speed, and produce a low-pressure area in the cavity center of air conveyor, thus the sand and dust bottom the sand and dust feeding box of surrounding are sucked air conveyor, and flow out from the outlet of air conveyor, enter feed pipe, entered in sand dust test chamber by feed pipe.Air conveyor and air compressor is used to coordinate, make the gas that air compressor produces after air conveyor, sand and dust are sucked air conveyor and are sufficiently mixed with gas by the negative pressure utilizing air conveyor to produce, make the sand dust conveniently controlling to enter feed pipe, change traditional mode utilizing sand and dust gravity to enter feed pipe, improve the efficiency that sand and dust inject, avoid because of sand and dust injection rate be difficult to control cause in sand dust test chamber sand-dust particulates fluctuation considerable influence sand dust test chamber test effect, the sand-dust particulates in sand dust test chamber is made to control in the range of sand and dust test allows, improve the performance of sand dust test chamber.
Pressure regulator valve described in above example, electromagnetic valve, ratio adjusting valve, air conveyor PID controller use that sells on market all can realize; the common knowledge being well known to those skilled in the art; and this utility model need to be protected be the structure of the sand and dust feed arrangement for sand dust test chamber; use and be the scope of this utility model protection with above example uses similar or functionally similar element or parts, be not elaborated at this.
Above-described embodiment is only wherein specific implementation of the present utility model, and it describes more concrete and detailed, but therefore can not be interpreted as the restriction to this utility model the scope of the claims.It should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these obvious alternative forms belong to protection domain of the present utility model.
Claims (7)
1. the sand and dust feed arrangement for sand dust test chamber, it is characterized in that, including feeding machanism (1), the feed pipe (11) being connected with feeding machanism (1), the air conveyor (2) being arranged between feeding machanism (1) and feed pipe (11) and the gas supply mechanism (3) carrying gas to feed pipe (11), described gas supply mechanism (3) is connected with air conveyor (2) by steam line (31), the pressure regulation part (4) for regulating gas supply mechanism conveying gas pressure size it is sequentially provided with and for regulating the switch module (5) of steam line gas break-make and gas uninterrupted on steam line (31) between gas supply mechanism (3) and air conveyor (2)；Described switch module (5) is connected with controller (6), and controls switch module (5) work by controller (6).
Sand and dust feed arrangement for sand dust test chamber the most according to claim 1, it is characterized in that, described switch module (5) includes electromagnetic valve (51) and the ratio adjusting valve (52) of regulation steam line gas flow size controlling steam line break-make, and ratio adjusting valve (52) is connected with controller (6) and is controlled by controller.
Sand and dust feed arrangement for sand dust test chamber the most according to claim 1 and 2, it is characterised in that described feeding machanism (1) is sand and dust storage barrel.
Sand and dust feed arrangement for sand dust test chamber the most according to claim 3, it is characterised in that described gas supply mechanism (3) is high-pressure air feed mechanism.
Sand and dust feed arrangement for sand dust test chamber the most according to claim 4, it is characterised in that described high-pressure air feed mechanism is air compressor.
Sand and dust feed arrangement for sand dust test chamber the most according to claim 3, it is characterised in that described pressure regulation part (4) is pressure regulator valve.
Sand and dust feed arrangement for sand dust test chamber the most according to claim 3, it is characterised in that described controller (6) is PID controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620393279.9U CN205538610U (en) | 2016-05-04 | 2016-05-04 | A dust and sand feed arrangement for sand and dust test chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620393279.9U CN205538610U (en) | 2016-05-04 | 2016-05-04 | A dust and sand feed arrangement for sand and dust test chamber |
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| Publication Number | Publication Date |
|---|---|
| CN205538610U true CN205538610U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620393279.9U Expired - Fee Related CN205538610U (en) | 2016-05-04 | 2016-05-04 | A dust and sand feed arrangement for sand and dust test chamber |
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| CN (1) | CN205538610U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831420A (en) * | 2017-10-30 | 2018-03-23 | 国家电网公司 | Movable-type concentration controllable precise uniformly goes out the dusty wind weather experimental system for simulating of sand |
| CN107843821A (en) * | 2017-12-21 | 2018-03-27 | 华北电力大学（保定） | A kind of controllable open sand and dust simulation experiment platform of concentration |
| CN109541588A (en) * | 2018-11-16 | 2019-03-29 | 北京遥感设备研究所 | The confined space fugitive dust test macro of air duct circulation |
| CN113358350A (en) * | 2021-06-03 | 2021-09-07 | 河北工业大学 | RV reduction gear dust-resistant reliability testing device |
| CN114323537A (en) * | 2022-01-06 | 2022-04-12 | 东北农业大学 | Flow control system and method for wind turbine dust and sand experiment |
-
2016
- 2016-05-04 CN CN201620393279.9U patent/CN205538610U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831420A (en) * | 2017-10-30 | 2018-03-23 | 国家电网公司 | Movable-type concentration controllable precise uniformly goes out the dusty wind weather experimental system for simulating of sand |
| CN107843821A (en) * | 2017-12-21 | 2018-03-27 | 华北电力大学（保定） | A kind of controllable open sand and dust simulation experiment platform of concentration |
| CN107843821B (en) * | 2017-12-21 | 2023-06-27 | 华北电力大学（保定） | Concentration-controllable open type sand simulation experiment platform |
| CN109541588A (en) * | 2018-11-16 | 2019-03-29 | 北京遥感设备研究所 | The confined space fugitive dust test macro of air duct circulation |
| CN113358350A (en) * | 2021-06-03 | 2021-09-07 | 河北工业大学 | RV reduction gear dust-resistant reliability testing device |
| CN114323537A (en) * | 2022-01-06 | 2022-04-12 | 东北农业大学 | Flow control system and method for wind turbine dust and sand experiment |
| CN114323537B (en) * | 2022-01-06 | 2024-04-02 | 东北农业大学 | Wind turbine sand and dust experiment flow control system and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20170504 |
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| CF01 | Termination of patent right due to non-payment of annual fee |