CN205146005U - Gas -liquid mixture system prevents backwater device - Google Patents

Abstract

The utility model belongs to the technical field of the gas -liquid mixture system technology and specifically relates to indicate gas -liquid mixture system prevents backwater device, prevent that backwater device includes an intermediate junction pipe, the intake pipe is connected at the middle part of intermediate junction pipe, connects a check valve on the outlet duct of intermediate junction pipe, a circuitous sepage pipe is connected to the below of intermediate junction pipe, connects the 2nd check valve on the sepage pipe, carry out the during operation when the gas -liquid mixture system, form negative pressure suction condition in the outlet duct, make a check valve switch on, the intake pipe of intermediate junction union coupling is smooth carries out the air feed to the system, and the negative pressure sucks and makes the 2nd check valve close, prevents that the gas of preparation from getting into outsidely through the sepage pipe, when gas -liquid mixture system stop work, the negative pressure inhales and disappears, becomes the malleation blowout in the twinkling of an eye, outlet duct refluence can be followed to liquid, and a check valve closes, the effective prevention during the liquid that results in because of the malleation blowout gets into the intake pipe, has ensured that air supply equipment's is safe in utilization.

Description

The anti-water recovery apparatus of gas-fluid mixing systems

Technical field

The utility model relates to gas-fluid mixing systems technical field, refers in particular to the anti-water recovery apparatus of gas-fluid mixing systems.

Background technology

When gas-fluid mixing systems work, along with air feed source of the gas (as ozone, oxygen, the other kinds gas of air) use simultaneously time, many times air supply pipe is sucked by liquid negative pressures such as venturi, Liqiud-gas mixing device, gas-liquid mixing pumps, suction-type plenum system air feed, there is the fluid of certain pressure by ejection at a high speed in gas-liquid mixed cavity, thus make gas-liquid mixed chamber utilize the turbulent flow of water to produce larger negative pressure suction, by suctions such as ozone, oxygen, the other kinds gases of air.After gas-fluid mixing systems quits work, negative pressure suction disappears, the positive pressure ejection of moment, and ejection makes liquid enter air feed equipment end from entering tracheae refluence, entering of liquid to the injury in various degree of air feed equipment formation, many times can cause air feed equipment cisco unity malfunction.

Utility model content

The utility model is the deficiency existed for current liquid negative pressure suction-type gas-liquid mixed air feed, and provides the gas-fluid mixing systems overcome the above problems anti-water recovery apparatus.

For achieving the above object, the utility model adopts following technical scheme:

The anti-water recovery apparatus of gas-fluid mixing systems, described anti-water recovery apparatus comprises an intermediate connection tube, the middle part of described intermediate connection tube connects air inlet pipe, the top of intermediate connection tube connects escape pipe, escape pipe connects the first one way stop peturn valve, described first one way stop peturn valve at fluid to the conducting of escape pipe direction, reverse closedown; The below of described intermediate connection tube connects a roundabout liquid-penetrating pipe, roundabout position the highest in described roundabout liquid-penetrating pipe pipe is lower than the junction of air inlet pipe at intermediate connection tube, described liquid-penetrating pipe connects the second one way stop peturn valve, described second one way stop peturn valve at fluid, to going out, close, reverse conducting by intermediate connection tube direction.

Preferably, described first one way stop peturn valve is vertically connected on escape pipe, and described first one way stop peturn valve comprises one first valve body, the first valve body is arranged the first valve pocket, and in the first valve pocket, top, below arrange the first outlet, the first entrance respectively; Establish the first weight valve in described first valve pocket, the top of the first entrance arranges and can form the first airtight sealing device with the first weight valve.

Preferably, described second one way stop peturn valve is vertically connected on liquid-penetrating pipe, and described second one way stop peturn valve comprises one second valve body, the second valve body is arranged the second valve pocket, and in the second valve pocket, top, below arrange the second outlet, the second entrance respectively; Establish the second weight valve in described second valve pocket, the top of the second entrance arranges and can form the second airtight sealing device with the second weight valve.

Preferably, described first sealing device be a soft rubber washer and " O " type circle forms.

Preferably, described second sealing device be a soft rubber washer and " O " type circle forms.

The beneficial effects of the utility model are, the anti-water recovery apparatus of the utility model gas-fluid mixing systems, anti-water recovery apparatus comprises an intermediate connection tube, and the middle part of intermediate connection tube connects air inlet pipe, the top of intermediate connection tube connects escape pipe, escape pipe connects the first one way stop peturn valve; The below of intermediate connection tube connects a roundabout liquid-penetrating pipe, and roundabout position the highest in roundabout liquid-penetrating pipe pipe, lower than the junction of air inlet pipe at intermediate connection tube, liquid-penetrating pipe connects the second one way stop peturn valve; When being located in gas-fluid mixing systems, what escape pipe connected liquid negative pressure suction type equipment enters tracheae, and air inlet pipe connects air feed equipment; When system air supply system carries out air feed work, under the effect of the flowing of fluid, there is negative pressure in escape pipe and suck the first one way stop peturn valve conducting, the air inlet pipe that intermediate connection tube connects carries out air feed to system smoothly, now, there is negative pressure suction owing to there is intermediate connection tube, the second one way stop peturn valve is closed, and prevents the gas prepared from entering outside by liquid-penetrating pipe; On the other hand, if there is liquid to enter intermediate connection tube in the course of work, the bottom of intermediate connection tube is pooled to, when liquid level exceeds roundabout liquid-penetrating pipe highest order, do not reach air inlet pipe height, can not air inlet pipe be entered, second one way stop peturn valve conducting, liquid oozes out, and reaches effective discharge opeing effect.

Accompanying drawing explanation

Fig. 1 is the cross-sectional view of utility model works state;

Fig. 2 is the cross-sectional view of the utility model off working state.

Detailed description of the invention

Be further elaborated below in conjunction with accompanying drawing 1,2 pairs of the utility model:

The anti-water recovery apparatus of gas-fluid mixing systems, described anti-water recovery apparatus comprises an intermediate connection tube 1, the middle part of described intermediate connection tube 1 connects air inlet pipe 2, the top of intermediate connection tube 1 connects escape pipe 3, escape pipe 3 connects the first one way stop peturn valve 4, first one way stop peturn valve 4 at fluid to escape pipe 3 direction conducting, reverse closedown; The below of intermediate connection tube 1 connects a roundabout liquid-penetrating pipe 5, the roundabout position 51 the highest in managing of described roundabout liquid-penetrating pipe 5 is lower than the junction of air inlet pipe 2 at intermediate connection tube 1, to going out, intermediate connection tube 1 direction is closed, reverse conducting at fluid described liquid-penetrating pipe 5 to connect the second one way stop peturn valve 6, second one way stop peturn valve 6.

As better embodiment, the present embodiment first one way stop peturn valve 4 is vertically connected on escape pipe 3, first one way stop peturn valve 4 comprises and one first valve body 41, first valve body 41 arranges top, below in the first valve pocket 42, first valve pocket 42 and arrange the first outlet 43, first entrance 44 respectively; The first weight valve 45 is established in described first valve pocket 42, the top of the first entrance 44 arranges and can form the first airtight sealing device 46 with the first weight valve 45, first sealing device 46 be a soft rubber washer and " O " type circle forms, elastic tape has good elasticity, good sealing can be formed with gravity first weight valve 45, function admirable, with low cost.

As better embodiment, second one way stop peturn valve 6 of the present embodiment is vertically connected on liquid-penetrating pipe 5, second one way stop peturn valve 6 comprises and one second valve body 61, second valve body 61 arranges top, below in the second valve pocket 62, second valve pocket 62 and arrange the second outlet 63, second entrance 64 respectively; The second weight valve 65 is established in second valve pocket 62, the top of the second entrance 64 arranges and can form the second airtight sealing device 66 with the second weight valve 65, second sealing device 66 be a soft rubber washer and " O " type circle forms, rubber washer and " O " type circle has good elasticity, good sealing can be formed with gravity second weight valve 65, function admirable, with low cost.

The anti-water recovery apparatus of the utility model gas-fluid mixing systems, when being located in gas-fluid mixing systems, what escape pipe 3 connected liquid negative pressure suction type equipment enters tracheae, and air inlet pipe 2 connects air feed equipment; When system air supply system carries out air feed work, under the effect of the flowing of fluid, there is negative pressure in escape pipe 3 and suck the first one way stop peturn valve 4 conducting, the air inlet pipe 2 that intermediate connection tube 1 connects carries out air feed to system smoothly, now, there is negative pressure suction owing to there is intermediate connection tube 1, the second one way stop peturn valve 6 is closed, and prevents the gas prepared from entering outside (as illustrated by the arrows in fig. 1) by liquid-penetrating pipe 5; When gas-fluid mixing systems stops air feed, negative pressure sucks and disappears, and liquid flows backwards from entering tracheae, and when the first one way stop peturn valve 4, the first one way stop peturn valve 4 is closed, and stops and further enters, effectively prevent liquid from entering air inlet pipe 2, ensures the safety of air feed equipment; On the other hand, if there is liquid to enter intermediate connection tube 1 in the course of work, be pooled to the bottom of intermediate connection tube 1, when hydrops exceeds roundabout liquid-penetrating pipe 5 highest order, do not reach air inlet pipe 2 height, air inlet pipe 2 can not be entered, the second one way stop peturn valve 6 conducting, liquid oozes out, and reaches effective discharge opeing effect (raindrop shape is hydrops and flows out schematic diagram as shown in Figure 2).

The above embodiment, just preferred embodiments of the present utility model, be not limit the utility model practical range, therefore all equivalences done according to structure, feature and the principle described in the utility model claim change or modify, and all should be included in the utility model patent claim.

Claims (5)

1. the anti-water recovery apparatus of gas-fluid mixing systems, it is characterized in that, described anti-water recovery apparatus comprises an intermediate connection tube, the middle part of described intermediate connection tube connects air inlet pipe, the top of intermediate connection tube connects escape pipe, escape pipe connects the first one way stop peturn valve, described first one way stop peturn valve at fluid to the conducting of escape pipe direction, reverse closedown; The below of described intermediate connection tube connects a roundabout liquid-penetrating pipe, roundabout position the highest in described roundabout liquid-penetrating pipe pipe is lower than the junction of air inlet pipe at intermediate connection tube, described liquid-penetrating pipe connects the second one way stop peturn valve, described second one way stop peturn valve at fluid, to going out, close, reverse conducting by intermediate connection tube direction.

2. the anti-water recovery apparatus of gas-fluid mixing systems according to claim 1, it is characterized in that: described first one way stop peturn valve is vertically connected on escape pipe, described first one way stop peturn valve comprises one first valve body, first valve body is arranged the first valve pocket, in the first valve pocket, top, below arrange the first outlet, the first entrance respectively; Establish the first weight valve in described first valve pocket, the top of the first entrance arranges and can form the first airtight sealing device with the first weight valve.

3. the anti-water recovery apparatus of gas-fluid mixing systems according to claim 1, it is characterized in that: described second one way stop peturn valve is vertically connected on liquid-penetrating pipe, described second one way stop peturn valve comprises one second valve body, second valve body is arranged the second valve pocket, in the second valve pocket, top, below arrange the second outlet, the second entrance respectively; Establish the second weight valve in described second valve pocket, the top of the second entrance arranges and can form the second airtight sealing device with the second weight valve.

4. the anti-water recovery apparatus of gas-fluid mixing systems according to claim 2, is characterized in that: described first sealing device be a soft rubber washer and " O " type circle forms.

5. the anti-water recovery apparatus of gas-fluid mixing systems according to claim 3, is characterized in that: described second sealing device be a soft rubber washer and " O " type circle forms.