CN2740939Y - Pressure reducing throttle structure - Google Patents
Pressure reducing throttle structure Download PDFInfo
- Publication number
- CN2740939Y CN2740939Y CN 200420118370 CN200420118370U CN2740939Y CN 2740939 Y CN2740939 Y CN 2740939Y CN 200420118370 CN200420118370 CN 200420118370 CN 200420118370 U CN200420118370 U CN 200420118370U CN 2740939 Y CN2740939 Y CN 2740939Y
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- pressure
- air
- hydraulic cylinder
- controller
- liquid
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Abstract
The utility model discloses a pressure reducing throttle structure, which is suitable for a pressure relief throttle on the air-conditioning box of external air of large size of industry dust-free chamber, comprising the pressure relief throttle which is provided with a door plate frame matched with a frame body. Two straight rods on the frame are provided with a hydraulic cylinder, a hydraulic pipe connected with the hydraulic cylinder and the outlet end of a liquid-air conversion barrel are jointed; the inlet end of the liquid-air conversion barrel is jointed with the outlet of the magnetic valve, and the inlet of the electromagnetic valve is connected with an air storage barrel for obtaining the pressure source of liquid-air conversion; the air storage barrel is connected with an air pressure pumping, and a provided pressure switch is back fed to the air pressure pumping, which can ensure the actuated pressure source. The inner of the air-conditioning box is externally connected with a pressure sensor whose air pressure pipe extends to the inner of the control box, and the pressure sensor can back feed the pressure ratio of the inner and the outer of the box to a controller; when the pressure sensor receives the set high pressure value of the controller, the magnetic valve actuates; as a consequence, the hydraulic cylinder starts the pressure relief throttle; when the pressure sensor receives the set low pressure value of the controller, the magnetic valve actuates; as a consequence, the hydraulic cylinder closes the pressure relief throttle, which can get the air-conditioning box not burst by closing of the outlet throttle because of faulty operation. As a consequence, the pressure reducing throttle structure can avoid the loss caused by pressure relief of the dust-free chamber because the air-conditioning box stops and needs to be serviced.
Description
Technical field
The utility model relates to a kind of pressure-adjusting type relief damper structure, is applicable to the relief damper of the large-scale mau make up air hundling unit schedule of industrial dust free room.
Background technology
Known relief damper utilizes the ratio recast of door material fit iron block; set inside and outside differential pressure within the specific limits; but then this relief damper was open and closes in moment when the air-conditioning box internal pressure scope of using plays pendulum or alters a great deal; make the easier explosion of air-conditioning box; cause shutdown maintenance; thereby the dust free room decompression stops, and so the generation of situation must solve immediately, with the manpower that avoids waste, time and money.
Summary of the invention
The purpose of this utility model provides a kind of pressure-adjusting type relief damper structure that is applicable to the relief damper of the large-scale mau make up air hundling unit schedule of industrial dust free room.
Above-mentioned purpose of the present utility model is achieved in that a kind of pressure-adjusting type relief damper structure, it is characterized in that comprising:
The pressure port body, possesses a framework, this framework has two straight-bars, its front end cooperates the back to live by a latch with a framework solid, framework has two straight-bars in addition, its front end cooperates the back to live by a latch with a pressure port body solid, the upper end of pressure port body contains the fastener set of establishing and cooperates alive solid with framework, each edge is established a hydraulic cylinder group on two straight-bars, the other end work of hydraulic cylinder group is fixed on the framework, the hydraulic tube of hydraulic cylinder winding and two liquid cyclostrophic creelings, one termination are closed, and the release hydraulic pressure of hydraulic cylinder group is supplied with in this first liquid cyclostrophic creeling, and the second liquid cyclostrophic creeling is supplied with retracting of hydraulic cylinder group and used hydraulic pressure, the pneumatic tube that the two liquid cyclostrophic creeling other ends are connected to is connected with magnetic valve two outlets, the pneumatic tube that other end electromagnetic valve entrance is connected to is connected with gas receiver again, to obtain the pressure source of liquid gas shift, makes magnetic valve be switched the turnover of hydraulic cylinder group;
Air-conditioning box, the pneumatic tube that is connected in the case is connected with the outer control cabinet pressure inside inductor of case, pressure inductor is made a pressure ratio with the air-conditioning box external and internal pressure and is feedback controller to control cabinet to value, is used to show pressure and control, and wherein magnetic valve and air pressure pumping are connected in control cabinet and the case.
Because the utility model utilizes pressure inductor to make the precognition pressure-sensing, thereby has improved accuracy.
Below in conjunction with instantiation shown in the drawings the utility model is elaborated.
Description of drawings
Fig. 1 is the utility model embodiment;
Fig. 2 is the utility model stereogram;
Fig. 3 is the utility model embodiment that opens the door;
Fig. 4 is the utility model embodiment that closes the door;
Fig. 5 is the utility model circuit composition diagram;
Fig. 6 is the utility model control flow chart.
Description of reference numerals: pressure port body 1; Framework 2; Straight-bar 3; Latch 4; Framework 5; Straight-bar 6; Latch 7; Fastener set 8; Hydraulic cylinder group 9; Hydraulic tube 10; Magnetic valve 11; Electromagnetic valve outlet 12; Pneumatic tube 13,14; Electromagnetic valve entrance 15; Pneumatic tube 16; The first liquid cyclostrophic creeling 17; The second liquid cyclostrophic creeling 18; Gas receiver 19; Case self feedback pneumatic tube 20; Air-conditioning box 21; Control cabinet 22; Relief damper 23; Hydraulic tube 24.
The specific embodiment
At first see also Fig. 1, Fig. 2, Fig. 3 and pressure-adjusting type relief damper structure of the present utility model shown in Figure 4, it is the pressure release wind that is applicable to the large-scale mau make up air hundling unit schedule of industrial dust free room, comprising:
Air-conditioning box 21, the pneumatic tube 20 that is connected in the case is connected with the outer control cabinet 22 pressure inside inductors of case, pressure inductor is made a pressure ratio with the air-conditioning box external and internal pressure value is feedback to the controller of control cabinet 22 as showing pressure and control usefulness, and wherein control cabinet 22 is connected with interior magnetic valve of case and air pressure pumping;
When pressure inductor is feedback when exceeding setup pressure value to controller, through magnetic valve 11 relief damper is opened in 9 starts of hydraulic cylinder group, when pressure inductor is feedback force value to controller when being lower than setup pressure value, then relief damper is closed in the start of hydraulic cylinder group 9 through magnetic valve 11, make the large-scale mau make up air hundling unit schedule of industrial used in dustless room not close the explosion of outlet air door because of maloperation, and then guarantee that dust free room has a pressure stable, not entered by extraneous dust;
In addition, be provided with a uninterruptible power system ups in this control cabinet 22 in addition, exportable DC12V and AC110V, use for each electric appliance component of relief damper, DC12V enters air pressure pumping work done and inflates after a pressure switch, make pressure-air enter gas receiver 19, this gas receiver 19 links with pressure switch, to guarantee the pressure source of gas receiver 19, other is provided with a Pressure gauge to show pressure, and the pressure air of gas receiver 19 is divided into two the tunnel after pneumatic tube 16 is received electromagnetic valve entrance 15, enter liquid cyclostrophic creeling 17 respectively, 18, wherein the hydraulic tube 10 of liquid cyclostrophic creeling 17 is connected with the inlet of two hydraulic cylinder groups 9 respectively, and the liquid line 24 of another liquid cyclostrophic creeling 18 is connected with the outlet of two hydraulic cylinder groups 9 respectively;
AC110V supplies with the controller use in addition, set up the digital pressure display list on it, and this controller is exported a DC24V power supply and is linked pressure inductor, this pressure inductor is connected to pneumatic tube 20 to case, to make air-conditioning box 21 external and internal pressure ratios, and export 4～20mA signal and feedback to controller demonstration pressure and control action contact usefulness, AC110V has one group of power supply in addition, handle, automatic transfer switch is divided into two-way and enters the control contact of controller and hand push button contact for making line chart on the moving electromagnetic valve 11 (), (2) power supply, during the coil of this magnetic valve 11 () start pneumatic tube 16 pressure are transported to pneumatic tube 14 and then input liquid cyclostrophic creeling 17, hydraulic cylinder group 9 is released opened relief damper, during coil (two) start pneumatic tube 16 pressure are transported to pneumatic tube 13 and then input liquid cyclostrophic creeling 18 and hydraulic cylinder group 9 are retracted close pressure port, aforementioned multinomial assembly is formed a complete control module and is enough in response to demand;
Its control flow is by power supply → ups → pressure switch → air pressure pumping → gas receiver → magnetic valve → liquid cyclostrophic creeling → hydraulic cylinder → keying air door in normality;
When the case internal pressure change to need switch relief damper 23, its flow process be by the case external and internal pressure poor → pressure inductor → controller → magnetic valve → liquid cyclostrophic creeling → hydraulic cylinder → keying air door;
In addition, ups110v power supply one side joint one manual press button is connected logical with magnetic valve, conveniently needs to use.
In a specific embodiment; when receiving one in air-conditioning box 21 internal gas pressure pipes 20, pressure inductor exceeds when setting high pressure values; then make 9 starts of hydraulic cylinder group open pressure port body 1 discharging high-pressure; when pressure inductor receives one when being lower than setup pressure value; then pressure port body 1 is closed in 9 starts of hydraulic cylinder group in addition; make the management and control that the pressure-adjusting type relief damper of the large-scale mau make up air hundling unit schedule of industrial used in dustless room obtains; suitable management and control pressure-adjusting type relief damper and air-conditioning box is protected; unlikely damage explosion; and then guarantee the pressure that dust free room is interior, not entered by extraneous dust.
Below the utility model and conventional art are compared:
Conventional art
1, known pressure port utilizes the door material to cooperate the proportion of iron block, sets external and internal pressure within the specific limits.
2, when the air-conditioning box internal pressure scope of using plays pendulum or alters a great deal, then this relief damper was open and closes in moment, and making the easier damage explosion of air-conditioning box influences normal operation.
3, make the air quality in the dust free room be affected.
4, can't adjust the speed that opens and closes start.
5, can't set the occlusion pressure force of pressure port.
The utility model
1, utilizes pressure inductor to make the precognition pressure-sensing, improve accuracy.
2, possess the ups uninterruptible power system, not influenced by outage.
3, system provides pneumatic supply not affected by environment voluntarily.
4, make the guarantee of many one decks of dust free room air quality.
5, can arbitrarily adjust relief damper engaging pressure point and keying speed, and action accuracy height.
The above only is of the present utility model one preferable possible embodiments; be not to limit scope of the present utility model thus; therefore all utilization the utility model specifications and the accompanying drawing content equivalent structure of doing; directly or indirectly apply to other correlative technology field, all should be contained within the protection domain of the present utility model.
Claims (5)
1, a kind of pressure-adjusting type relief damper structure is characterized in that comprising:
The pressure port body, possesses a framework, this framework has two straight-bars, its front end cooperates the back to live by a latch with a framework solid, framework has two straight-bars in addition, its front end cooperates the back to live by a latch with a pressure port body solid, the upper end of pressure port body contains the fastener set of establishing and cooperates alive solid with framework, each edge is established a hydraulic cylinder group on two straight-bars, the other end work of hydraulic cylinder group is fixed on the framework, the hydraulic tube of hydraulic cylinder winding and two liquid cyclostrophic creelings, one termination are closed, and the release hydraulic pressure of hydraulic cylinder group is supplied with in this first liquid cyclostrophic creeling, and the second liquid cyclostrophic creeling is supplied with retracting of hydraulic cylinder group and used hydraulic pressure, the pneumatic tube that the two liquid cyclostrophic creeling other ends are connected to is connected with magnetic valve two outlets, the pneumatic tube that other end electromagnetic valve entrance is connected to is connected with gas receiver again, to obtain the pressure source of liquid gas shift, makes magnetic valve be switched the turnover of hydraulic cylinder group;
Air-conditioning box, the pneumatic tube that is connected in the case is connected with the outer control cabinet pressure inside inductor of case, pressure inductor is made a pressure ratio with the air-conditioning box external and internal pressure and is feedback controller to control cabinet to value, is used to show pressure and control, and wherein magnetic valve and air pressure pumping are connected in control cabinet and the case.
2, pressure-adjusting type relief damper structure according to claim 1, it is characterized in that, also be provided with a uninterruptible power system ups in the control cabinet in addition, the voltage of exportable DC12V and AC 110V for each electric appliance component use of relief damper, DC12V supplies with the air pressure pumping after a pressure switch, make the pressure-air of air pressure pumping enter gas receiver, this gas receiver and pressure switch link.
3, pressure-adjusting type relief damper structure according to claim 1 is characterized in that other is provided with a Pressure gauge, to show pressure.
4, pressure-adjusting type relief damper structure according to claim 1 is characterized in that, the hydraulic tube of the first liquid cyclostrophic creeling is connected with the inlet of two hydraulic cylinder groups respectively, and the liquid line of the second liquid cyclostrophic creeling is connected with the outlet of two hydraulic cylinder groups respectively.
5, pressure-adjusting type relief damper structure according to claim 1, it is characterized in that, AC 110V supplies with controller, set up the digital pressure display list on this controller, and this controller is exported a DC24V power supply and is given pressure inductor, this pressure inductor is connected to pneumatic tube to case and export 4～20mA signal and feedback to controller to show pressure and control action contact, AC 110V has in addition that one group of power supply is handled, automatic transfer switch is divided into control contact and the hand push button contact that two-way enters controller, to supply with coil on the magnetic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420118370 CN2740939Y (en) | 2004-10-13 | 2004-10-13 | Pressure reducing throttle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420118370 CN2740939Y (en) | 2004-10-13 | 2004-10-13 | Pressure reducing throttle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2740939Y true CN2740939Y (en) | 2005-11-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420118370 Expired - Fee Related CN2740939Y (en) | 2004-10-13 | 2004-10-13 | Pressure reducing throttle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2740939Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608715A (en) * | 2020-06-01 | 2020-09-01 | 中国矿业大学 | Explosion-proof pressure relief and energy storage reset air door with electromagnetic locking and unlocking and control method |
-
2004
- 2004-10-13 CN CN 200420118370 patent/CN2740939Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111608715A (en) * | 2020-06-01 | 2020-09-01 | 中国矿业大学 | Explosion-proof pressure relief and energy storage reset air door with electromagnetic locking and unlocking and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |