CN208297210U

CN208297210U - phthalic anhydride gas sampler

Info

Publication number: CN208297210U
Application number: CN201821042099.1U
Authority: CN
Inventors: 邹侦宝; 马新东; 郑军生
Original assignee: Xintai Zhongtai New Mstar Technology Ltd
Current assignee: Xintai Zhongtai New Mstar Technology Ltd
Priority date: 2018-07-03
Filing date: 2018-07-03
Publication date: 2018-12-28
Anticipated expiration: 2028-07-03

Abstract

The utility model relates to phthalic anhydride preparation fields, more particularly to a kind of phthalic anhydride gas sampler, including the first gas receiver and the second gas receiver, the conllinear and opposite side in the central axes of first gas receiver and the second gas receiver is connected by communicating pipe, the other end of first gas receiver and the second gas receiver passes through pipeline respectively and is connected with phthalic anhydride transfer pipeline, its both ends of gas collector are additionally provided between first gas receiver and the second gas receiver to be detachably connected with first gas receiver and the second gas receiver respectively, the gas collector and first gas receiver and second gas receiver form access.The utility model ensure that the consistency of material in samples taken and pipeline when sampling.

Description

Phthalic anhydride gas sampler

Technical field

The utility model relates to phthalic anhydride preparation fields, and in particular to a kind of phthalic anhydride gas sampler.

Background technique

Phthalic anhydride also known as phthalic anhydride, phthalic anhydride are a kind of important Organic Chemicals, and phthalic anhydride is now widely used for The industrial departments such as chemical industry, medicine, electronics, agricultural, coating, fine chemistry industry, mainly for the production of plastic plasticizer, alkyd resin, Dyestuff, unsaturated-resin and certain medicine and pesticide.

Phthalic anhydride gas analysis is to produce one of the important link of phthalic anhydride, and analysis data are then the guides for producing phthalic anhydride.Therefore, Phthalic anhydride complete gas analysis is the problem of phthalic anhydride industry is extremely paid attention to, while it is " law enforcement " mechanism again, to maintain strict control over gate of the quality monitoring, is obtained Reliable analysis data, sampling are a crucial rings.

Phthalic anhydride sampler is had nothing in common with each other at present, there is heat preservation rotation plucked instrument valve-type, spring steel bead etc., existing sampler It is most of be all sampled on the pipeline being arranged in after oxidator with existing sampling equipment, it cannot be guaranteed that samples taken with The consistency of material in pipeline.

Utility model content

In view of the drawbacks of the prior art and insufficient, the utility model discloses a kind of phthalic anhydride gas samplers.

The utility model solves technical solution used in its technical problem: phthalic anhydride gas sampler, including the first storage The side that the central axes of inflator and the second gas receiver, first gas receiver and the second gas receiver are conllinear and opposite passes through communicating pipe It is connected, the other end of first gas receiver and the second gas receiver passes through pipeline respectively and is connected with phthalic anhydride transfer pipeline, institute It states and is additionally provided with gas collector between the first gas receiver and the second gas receiver, the gas collector is tubular structure for adopting Collect phthalic anhydride gaseous sample, both ends are detachably connected with first gas receiver and the second gas receiver respectively, the gas collecting Device and first gas receiver and the second gas receiver form access.

Preferably, one end of first gas receiver towards the second gas receiver is fixedly installed the first ventilation interface tube, The outer wall of the first ventilation interface tube is equipped with screw thread, and internal one end is connected the port of the other end with first gas receiver It equipped with the first check valve, opens, is connected with the gas collector from outside to inside.

Preferably, one end of second gas receiver towards the first gas receiver is fixedly installed the second ventilation interface tube, The outer wall of the second ventilation interface tube is equipped with several ring type seals, and internal one end is connected with second gas receiver, The other end is connected with the gas collector, is additionally provided with the first breather valve on the second ventilation interface tube.

Preferably, the gas collector includes tank body, one end of the tank body is fixedly connected with third ventilation interface tube, The third ventilation interface tube is detachably connected with the first ventilation interface tube, and the other end of the tank body is equipped with through-hole and institute Tank interior to be stated to be connected, the tank interior is additionally provided with piston, and the side wall of the piston and the inner tank wall are in sealing contact, The piston slides in the tank body, and the middle part of the piston is equipped with opening, and the piston connects towards the third snorkel The opening of the side of mouth is equipped with second one-way valve and opens towards third ventilation interface tube, the other side of the opening Equipped with four-way air pipe interface, the four-way air pipe interface is pierced by from the through-hole, and the tank body lower sidewalls, which are equipped with, to be run through The venthole of the tank body barrel.

Preferably, the piston side wall is provided with seal gasket, the seal gasket is contacted with the inner tank wall It is equipped with several protrusions on one side.

Preferably, the tank base interior annular is evenly equipped with several round card slots, set vertically in the circle card slot There is spring, the other end of the spring is fixedly connected with the piston.

Preferably, one end nozzle that the third ventilation interface tube is connect with the first ventilation interface tube is equipped with outer lip Side and interior lip, the outer lip are connected into U-shaped with the interior lip, are equipped with screw thread and described first on the inside of the outer lip The connection of snorkel interface thread, the interior lip height are lower than the outer lip, the U between the outer lip and the interior lip Shape bottom is equipped with gasket, and the other end of the third ventilation interface tube is provided with the second breather valve.

Preferably, the tank wall is provided with handle.

Compared with prior art, the utility model has the beneficial effects that

1. the utility model is provided with communicating pipe and gas collector between the first gas receiver and the second gas receiver, so that Phthalic anhydride gas can enter the first gas receiver from pipeline in phthalic anhydride conveyance conduit, and a part enters the second gas storage by communicating pipe Cylinder, then phthalic anhydride delivery pipe is returned to via pipeline, the flowing of phthalic anhydride gas sampler internal gas is kept, another part enters gas In collector, ensure that when using gas collector acquires gaseous sample, into the phthalic anhydride gas in gas collector With the material consistency of phthalic anhydride gas in transfer pipeline, while gas collector and the first gas receiver and the second gas receiver is removable Connection is unloaded, but also removing and installing for gas collector is simple and fast, is also convenient for the extraction detection of gaseous sample, gas collecting Access is formed with the first gas receiver and the second gas receiver when device samples, so that phthalic anhydride gas can also flow in tank body, further It ensure that the consistency of material in the intracorporal gaseous sample of tank and pipeline.

The screw thread setting of interface tube outer wall 2. the utility model first is ventilated, both ensure that connection conveniently in turn ensures gas Close property, while the setting of the first check valve opened from outside to inside, ensure that the first gas receiver when being not connected to gas collector Air-tightness.

3. the utility model second is ventilated, interface tube outer wall ring type seal also ensures the gas connecting with gas collector Close property, the setting of the first breather valve can close the second ventilation interface tube so that when not accessing gas collector, guarantee The air-tightness of second gas receiver.

4. the sealing sliding contact of the utility model piston and inner tank wall, while barrel is equipped with venthole below tank body, So that the intracorporal space of tank is divided into two, it is as few as possible almost without other gases in tank body before gaseous sample enters tank body Mixing is contacted with outside air, influence the consistency of sample gas material.

Detailed description of the invention

It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described.

Fig. 1 is phthalic anhydride gas sampler structure chart provided by the embodiment of the utility model；

Fig. 2 is the first snorkel interface structure figure provided by the embodiment of the utility model；

Fig. 3 is the second snorkel interface structure figure provided by the embodiment of the utility model；

Fig. 4 is gas collector structure chart provided by the embodiment of the utility model；

1. first gas receiver in figure；2. the second gas receiver；3. communicating pipe；4. gas collector；5. the first ventilation interface tube； 6. the first check valve；7. the second ventilation interface tube；8. ring type seal；9. the first breather valve；10. tank body；11. third snorkel Interface；12. through-hole；13. second one-way valve；14. four-way air pipe interface；15. venthole；16. seal gasket；17. circular card Slot；18. spring；19. outer lip；Lip in 20.；21. gasket；22. the second breather valve；23. handle；24 pistons.

Specific embodiment

The utility model is described further below in conjunction with attached drawing.

As shown in Figures 1 to 4, in the present embodiment, phthalic anhydride gas sampler, including the first gas receiver 1 and the second gas storage Cylinder 2, first gas receiver 1 side conllinear and opposite with the central axes of the second gas receiver 2 is by being connected communicating pipe 3, institute The other end for stating the first gas receiver 1 and the second gas receiver 2 passes through pipeline respectively and is connected with phthalic anhydride transfer pipeline, first storage One end of inflator 1 towards the second gas receiver 2 is fixedly installed the first ventilation interface tube 5, the outer wall of the first ventilation interface tube 5 Equipped with screw thread, internal one end be connected with first gas receiver 1 other end port equipped with the first check valve 6, from outer Inwardly to open, one end of second gas receiver 2 towards the first gas receiver 1 is fixedly installed the second ventilation interface tube 7, and described the The outer wall of two-way air pipe interface 7 is equipped with several ring type seals 8, is additionally provided with the first ventilation on the second ventilation interface tube 7 Valve 9, is additionally provided with gas collector 4 between first gas receiver 1 and the second gas receiver 2, the gas collector 4 includes tank Body 10, one end of the tank body 10 are fixedly connected with third ventilation interface tube 11, and the third ventilation interface tube 11 and first are led to The connection of 5 removable seal of air pipe interface, the other end of the tank body 10, which is equipped with inside through-hole 12 and the tank body 10, to be connected, institute It states and is additionally provided with piston 24 inside tank body 10, the side wall of the piston 24 and 10 inner wall of tank body are in sealing contact, the piston 24 It is slided in the tank body 10, the middle part of the piston 24 is equipped with opening, and the piston 24 is ventilated interface tube towards the third The opening of 11 side be equipped with second one-way valve 13 towards the third ventilation interface tube 11 open, the opening it is another Side is equipped with four-way air pipe interface 14, and the four-way air pipe interface 14 is pierced by and second snorkel from the through-hole 12 Interface is connected, and 10 lower sidewalls of tank body are equipped with the venthole 15 through 10 barrel of tank body, 24 side wall of piston It is provided with seal gasket 16, the one side that the seal gasket 16 is contacted with 10 inner wall of tank body is equipped with several protrusions, and described the One end nozzle that threeway air pipe interface 11 is connect with the first ventilation interface tube 5 is equipped with outer lip 19 and interior lip 20, described Outer lip 19 is connected with the interior lip 20 is connected into U-shaped, and screw thread is equipped on the inside of the outer lip 19 and is connect with first snorkel Mouth 5 is threadedly coupled, and interior 20 height of lip is lower than the outer lip 19, between the outer lip 19 and the interior lip 20 U-shaped bottom is equipped with gasket 21, and the other end of the third ventilation interface tube 11 is provided with the second breather valve 22, the tank body 10 Bottom inside annular is evenly equipped with several round card slots 17, is equipped with spring 18 vertically in the circle card slot 17, the spring 18 The other end is fixedly connected with the piston 24, and 10 outer wall of tank body is provided with handle 23.

When the present embodiment is in use, one end that piston 24 is located at third ventilation interface tube 5 is adjusted first, then passes through handle The screw thread that 23 rotating vessels 10 make the screw thread of outer 19 inside of lip ventilate 5 outer wall of interface tube with first, which is meshed, to be screwed, because Interior lip 20 is lower than outer lip 19, so outer lip 19 is first contacted with the first ventilation interface tube 5, then during precession Interior lip 20 contacts and opens the first check valve 6 and is connected to the first gas receiver 1, rotating vessel in place after, gasket 21 and the One ventilation 5 nozzle of interface tube contact guarantees sealing.The second breather valve 22 is opened after connecting gas collector 4, so that phthalic anhydride Gas enters in tank body 10, and under the effect of the pressure, piston 24 moves downward, and the air in tank body 10 is discharged from venthole 15, During moving downward, four-way air pipe interface 14 can be pierced by from through-hole 12 to be connected piston 24 with the second ventilation interface tube 7 It connects, the second ventilation interface tube 7 can open second one-way valve 13, the first breather valve 9 be opened at this time, so that 10 inside of tank body and second Gas receiver 2 is connected to form access, is continuing for some time, and guarantees that the temperature of the intracorporal gaseous sample of tank and pressure reach requirement Afterwards, it is first shut off the first breather valve 9 and the second breather valve 22, then screws out tank body 10.It is logical from third when taking out gaseous sample Air pipe interface 11 or four-way air pipe interface 14 take out, and after taking out gaseous sample, piston 24 can be in 18 elastic force of spring Act on lower self-return.

The present embodiment is provided with communicating pipe 3 and gas collector 4 between the first gas receiver 1 and the second gas receiver 2, so that Phthalic anhydride gas can enter the first gas receiver 1 from pipeline in phthalic anhydride conveyance conduit, and a part enters the second gas storage by communicating pipe 3 Cylinder 2, then phthalic anhydride delivery pipe is returned to via pipeline, the flowing of phthalic anhydride gas sampler internal gas is kept, another part enters gas In body collector 4, the phthalic anhydride when using gas collector 4 acquires gaseous sample, into gas collector 4 is ensured that The material consistency of phthalic anhydride gas in gas and transfer pipeline, while gas collector 4 and the first gas receiver 1 and the second gas receiver Be detachably connected, but also removing and installing for gas collector 4 is simple and fast, be also convenient for the extraction detection of gaseous sample, Access is formed with the first gas receiver 1 and the second gas receiver 2 when gas collector 4 samples, so that phthalic anhydride gas can flow in tank body It is dynamic, further ensure the consistency of material in the gaseous sample and pipeline in tank body 10.

The screw thread setting of ventilation 5 outer wall of interface tube of this example first, both ensure that connection conveniently in turn ensures air-tightness, The setting of first check valve 6 opened from outside to inside simultaneously, ensure that first gas receiver 1 when being not connected to gas collector 4 Air-tightness.

The present embodiment second ventilate 7 outer wall ring type seal 8 of interface tube also ensure connect with gas collector 4 it is airtight Property, the setting of the first breather valve 9 can close the second ventilation interface tube 7 so that when not accessing gas collector 4, protect Demonstrate,prove the air-tightness of the second gas receiver 2.

The present embodiment, the sealing sliding contact of piston 24 and 10 inner wall of tank body, while 10 lower section barrel of tank body are equipped with ventilation Hole, so that the space in tank body 10 is divided into two, before gaseous sample enters tank body 10, almost without other gas in tank body 10 Body, it is as few as possible that mixing is contacted with outside air, influence the consistency of sample gas material.

Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments, and the obvious variation or change that this extends out The dynamic protection scope created still in the utility model.

Claims

1. phthalic anhydride gas sampler, which is characterized in that including the first gas receiver (1) and the second gas receiver (2), first gas storage Cylinder (1) side conllinear and opposite with the central axes of second gas receiver (2) is connected by communicating pipe (3), and described first The other end of gas receiver (1) and the second gas receiver (2) passes through pipeline respectively and is connected with phthalic anhydride transfer pipeline, first gas storage It is additionally provided with gas collector (4) between cylinder (1) and the second gas receiver (2), the gas collector (4) is used for for tubular structure Phthalic anhydride gaseous sample is acquired, both ends are detachably connected with first gas receiver (1) and the second gas receiver (2) respectively, described Gas collector (4) and first gas receiver (1) and second gas receiver (2) form access.

2. phthalic anhydride gas sampler according to claim 1, which is characterized in that the first gas receiver (1) direction second One end of gas receiver (2) is fixedly installed the first ventilation interface tube (5), and the outer wall of first ventilation interface tube (5) is equipped with spiral shell Line, internal one end be connected with first gas receiver (1) other end port equipped with the first check valve (6), from extroversion Interior unlatching is connected with the gas collector (4).

3. phthalic anhydride gas sampler according to claim 2, which is characterized in that the second gas receiver (2) direction first One end of gas receiver (1) is fixedly installed the second ventilation interface tube (7), second ventilation interface tube (7) if outer wall be equipped with Dry ring type seal (8), internal one end are connected with second gas receiver (2), the other end and the gas collector (4) It is connected, is additionally provided with the first breather valve (9) in second ventilation interface tube (7).

4. phthalic anhydride gas sampler according to claim 3, which is characterized in that the gas collector (4) includes tank body (10), one end of the tank body (10) is fixedly connected with third ventilation interface tube (11), third ventilation interface tube (11) and institute It states the first ventilation interface tube (5) to be detachably connected, the other end of the tank body (10) is equipped with through-hole (12) and the tank body (10) Inside is connected, and is additionally provided with piston (24) inside the tank body (10), in the side wall of the piston (24) and the tank body (10) Wall is in sealing contact, and the middle part of the piston (24) sliding in the tank body (10), the piston (24) is equipped with opening, the work The opening for filling in (24) towards the side of third ventilation interface tube (11) is equipped with second one-way valve (13) described in Third ventilation interface tube (11) is opened, and the other side of the opening is equipped with four-way air pipe interface (14), the 4th snorkel Interface (14) is pierced by from the through-hole (12), and tank body (10) lower sidewalls are equipped with the ventilation through the tank body (10) barrel Hole (15).

5. phthalic anhydride gas sampler according to claim 4, which is characterized in that piston (24) side wall is provided with sealing Rubber mat (16), the one side that the seal gasket (16) contacts with the tank body (10) inner wall are equipped with several protrusions.

6. phthalic anhydride gas sampler according to claim 4, which is characterized in that tank body (10) the bottom inside annular is Several round card slots (17) are furnished with, are equipped with spring (18) vertically in the circle card slot (17), the other end of the spring (18) It is fixedly connected with the piston (24).

7. phthalic anhydride gas sampler according to claim 4, which is characterized in that third ventilation interface tube (11) and institute State the first ventilation interface tube (5) connection one end nozzle be equipped with outer lip (19) and interior lip (20), the outer lip (19) and The interior lip (20), which is connected, is connected into U-shaped, and screw thread and described first ventilation interface tube (5) spiral shell are equipped on the inside of the outer lip (19) Line connection, the interior lip (20) are highly lower than the outer lip (19), the outer lip (19) and the interior lip (20) it Between U-shaped bottom be equipped with gasket (21), the other end of third ventilation interface tube (11) is provided with the second breather valve (22).

8. phthalic anhydride gas sampler according to claim 4, which is characterized in that tank body (10) outer wall is provided with handle (23)。