CN211435690U - Reversing valve of suction dryer - Google Patents

Abstract

The utility model discloses a reversing valve of a suction dryer, which comprises an adsorption barrel, a regeneration barrel, a second reversing valve and a first reversing valve; adsorption bucket: the air inlet of the adsorption barrel is communicated with a first air inlet pipe, and the air outlet of the adsorption barrel is communicated with a first air outlet pipe; a regeneration barrel: the air inlet of the regeneration barrel is communicated with an air inlet pipe II, and the air outlet of the regeneration barrel is communicated with an air outlet pipe II; a second direction changing valve: one end of the second reversing valve is communicated with the first air inlet pipe, the other end of the second reversing valve is communicated with the second air inlet pipe, the structure of the first reversing valve is the same as that of the second reversing valve, one end of the first reversing valve is communicated with the first air outlet pipe, and the other end of the first reversing valve is communicated with the second air outlet pipe; wherein, still include the control valve, the side of intake pipe No. one and intake pipe No. two is equipped with bypass line, the utility model provides a reversing valve of suction machine can simplify the operating procedure, reduces the maintenance cost and the equipment cost of suction machine, improves suction machine result of use.

Description

Reversing valve of suction dryer

Technical Field

The utility model relates to a dry technical field of air compressor machine aftertreatment technique specifically is a reversing valve of suction dryer.

Background

At present, the suction dryer mainly comprises adsorption bucket (regeneration bucket), connecting line, control valve, valve control unit and electric program control unit etc. during operation: the adsorption barrels and the regeneration barrels operate intermittently and alternately, when 1 barrel (adsorption barrel) works, the other 1 barrel (regeneration barrel) dries the adsorbent inside, desorbs the water adsorbed in the adsorbent, when the adsorption of the adsorption barrel is finished, the regeneration of the regeneration barrel is finished, at the moment, the valve control system is controlled by an electric program to switch the inlet and outlet valves of the adsorption barrel and the regeneration barrel to open and close stations, the original adsorption barrel starts to carry out drying regeneration, and original recycling bin begins to adsorb work, so the alternative goes on, traditional suction dryer during operation in order to carry out dry regeneration to the recycling bin, need go to increase bypass pipeline and flow control valve at absorption bin and recycling bin gas outlet, with the air current leading-in recycling bin from the absorption bin, realize the regeneration function, make the operation become complicated, the result of use variation, maintenance cost and equipment cost are also higher simultaneously.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a reversing valve of suction machine, can simplify the operating procedure, reduce the maintenance cost and the equipment cost of suction machine, improve suction machine result of use, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: a reversing valve of a suction dryer comprises an adsorption barrel, a regeneration barrel, a second reversing valve and a first reversing valve;

adsorption bucket: the air inlet of the adsorption barrel is communicated with a first air inlet pipe, and the air outlet of the adsorption barrel is communicated with a first air outlet pipe;

a regeneration barrel: the air inlet of the regeneration barrel is communicated with an air inlet pipe II, and the air outlet of the regeneration barrel is communicated with an air outlet pipe II;

a second direction changing valve: one end of the second reversing valve is communicated with the first air inlet pipe, the other end of the second reversing valve is communicated with the second air inlet pipe, the structure of the first reversing valve is the same as that of the second reversing valve, one end of the first reversing valve is communicated with the first air outlet pipe, and the other end of the first reversing valve is communicated with the second air outlet pipe;

the air inlet pipe comprises a first air inlet pipe body, a second air inlet pipe body and a control valve, wherein the first air inlet pipe body and the second air inlet pipe body are respectively provided with a bypass pipeline, and the bypass pipelines are connected with a silencer and the control valve.

Further, the second reversing valve comprises a valve body shell, a spacer bush, a piston and end covers, the end covers are provided with two groups, the two groups of end covers are installed at two ends of the valve body shell, vent holes are formed in the end covers, the two groups of vent holes are communicated with a first air inlet pipe and a second air inlet pipe respectively, the spacer bush is installed on the inner wall of the valve body shell, the piston is located inside the spacer bush and is connected with the inner wall of the spacer bush in a left-right sliding mode, a gas inlet and outlet hole is formed in the side face of the valve body shell, the piston can slide left and right along the inner wall of the spacer bush according to the gas pressure difference of the vent holes at two ends by utilizing the gas pressure principle, and then the vent holes and the gas inlet and outlet holes in the.

Further, still include the restricted aperture, the discharge orifice is seted up in the middle part of piston, utilizes the restricted aperture can be when there is the gas pressure difference, and the air feed stream flows to the direction that pressure is little, carries out for the regenerated bucket provides adsorbent regeneration and cooling gas to can increase the pressure of regenerated bucket after the cooling is accomplished, make adsorption bucket and regenerated bucket reach pressure balance.

Compared with the prior art, the beneficial effects of the utility model are that: the reversing valve of the suction dryer has the following advantages:

this suction dryer's switching-over valve utilizes switching-over valve structure, the intermittent type alternate operation between absorption bucket and the regeneration bucket has been realized, moreover, the steam generator is simple in structure, and is convenient for operate, great reduction the cost of maintenance cost and equipment, through seting up the restricted aperture in the middle part of the piston, can be when there is pressure differential in absorption bucket and regeneration bucket, make partly air current flow through the restricted aperture flow in the regeneration bucket, provide adsorbent regeneration and cooling gas, after regeneration and cooling are accomplished, can build the pressure to the regeneration bucket, make and reach pressure balance between absorption bucket and the regeneration bucket, convenience very during the use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic sectional view of a second reversing valve according to the present invention.

In the figure: the device comprises an adsorption barrel 1, a regeneration barrel 2, a first reversing valve 3, a second reversing valve 4, a valve body shell 41, a spacer 42, a piston 43, an end cover 44, a first air inlet pipe 5, a first air outlet pipe 6, a second air outlet pipe 7, a second air inlet pipe 8, a restricted flow hole 9, a vent hole 10, a gas inlet and outlet hole 11 and a control valve 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a reversing valve of a suction dryer comprises an adsorption barrel 1, a regeneration barrel 2, a second reversing valve 4 and a first reversing valve 3;

an adsorption bucket 1: the gas inlet of the adsorption barrel 1 is communicated with a first gas inlet pipe 5, the gas outlet of the adsorption barrel 1 is communicated with a first gas outlet pipe 6, the adsorption barrel 1 can absorb moisture in gas by using an adsorbent, the gas enters the adsorption barrel 1 from the first gas inlet pipe 5 and is discharged out of the adsorption barrel 1 from the first gas outlet pipe 6;

a regeneration barrel 2: the air inlet of the regeneration barrel 2 is communicated with an air inlet pipe II 8, the air outlet of the regeneration barrel 2 is communicated with an air outlet pipe II 7, the regeneration barrel 2 can dry the internal adsorbent, desorbs the water adsorbed in the adsorbent, and can be used for drying the gas after regeneration is finished;

the second direction valve 4: one end of a second reversing valve 4 is communicated with a first air inlet pipe 5, the other end of the second reversing valve 4 is communicated with a second air inlet pipe 8, the structure of the first reversing valve 3 is the same as that of the second reversing valve 4, one end of the first reversing valve 3 is communicated with a first air outlet pipe 6, the other end of the first reversing valve 3 is communicated with a second air outlet pipe 7, the first reversing valve 3 and the second reversing valve 4 are used for realizing the circulation of gas by utilizing the pressure difference principle between the adsorption barrel 1 and the regeneration barrel 2, the second reversing valve 4 comprises a valve body shell 41, a spacer 42, a piston 43 and an end cover 44, the end cover 44 is provided with two groups, the two groups of end covers 44 are arranged at two ends of the valve body shell 41, the end cover 44 is provided with vent holes 10, the two groups of vent holes 10 are respectively communicated with the first air inlet pipe 5 and the second air inlet pipe 8 and used for conveying the gas entering the interior of the second reversing valve 4, the, and is connected with the inner wall of the spacer 42 in a left-right sliding way, when pressure difference is generated, the vent hole 10 at one side with small pressure can be blocked, the gas inlet and outlet hole 11 is communicated with the vent hole 10 at one side with large pressure, the adsorption of gas is completed, wherein the vent holes 10 at two sides in the first reversing valve 3 are respectively communicated with a first air outlet pipe 6 and a second air outlet pipe 7, the gas adsorption device also comprises a flow limiting hole 9, the flow limiting hole 9 is arranged at the middle part of a piston 43, the flow limiting hole 9 is arranged at the middle part of the piston 43, when pressure difference exists between the adsorption barrel 1 and the regeneration barrel 2, a part of gas flow can flow into the regeneration barrel 2 through the flow limiting hole 9, the gas for adsorbent regeneration and cooling is provided, after regeneration and cooling are completed, the pressure can be built up for the regeneration barrel 2, the pressure balance between the adsorption barrel 1 and the regeneration barrel 2 is achieved, the gas inlet and outlet hole 11 is arranged at the side surface of, the flow limiting hole 9 ensures the output flow of gas, ensures that the regeneration of the adsorbent in the regeneration barrel 2 is completed within the specified time, the working period of adsorption and regeneration is controlled by the time set by a program, after the regeneration barrel 2 completes the regeneration, the regeneration barrel 2 enters the adsorption work, the original adsorption barrel 1 performs the regeneration work, at the moment, the flow direction of the gas and the reversing of the first reversing valve 3 and the second reversing valve 4 are restarted and perform the recycling work again, thereby protecting the uninterrupted circulation work of the adsorption barrel 1 and the regeneration barrel 2 and ensuring the uninterrupted supply of the dry gas;

wherein, still include control valve 12, the side of intake pipe No. 5 and intake pipe No. two 8 is equipped with the bypass line, and the bypass line is connected with muffler and control valve 12, and control valve 12 can control the open and close state of intake pipe No. 5 and intake pipe No. two 8, makes to form the pressure differential, and control valve 12 has the control of outside control switch group.

When in use: the adsorption barrel 1 works, the control valve 12 on the air inlet pipe I5 is opened, at the moment, the pressure of the air inlet pipe I5 of the adsorption barrel 1 is greater than the pressure of the air inlet pipe II 8 of the regeneration barrel 2, under the action of gas pressure, the piston 43 in the second reversing valve 4 moves towards the right side along the spacer 42, the gas inlet hole 11 in the second reversing valve 4 is communicated with the air inlet pipe I5, the gas enters the adsorption barrel 1 through the air inlet pipe I5 to dry the gas, meanwhile, the working pressure of the air outlet pipe I6 is greater than the working pressure of the air outlet pipe II 7, the piston 43 in the first reversing valve 3 moves towards the right side along the spacer 42, the gas inlet hole 11 in the first reversing valve 3 is communicated with the air outlet pipe I5, the gas flows out through the air outlet pipe I6 and along the gas inlet hole 11 in the first reversing valve 3, meanwhile, the dry gas in the first reversing valve 3 enters the air outlet pipe II 7 through the flow limiting hole 9, and the gas is conveyed into the regeneration barrel 2 to dry the gas in the regeneration barrel 2, the flow limiting hole 9 ensures the output flow of the gas, and ensures that the regeneration of the adsorbent in the regeneration barrel 2 is finished within the specified time, the working period of the adsorption and the regeneration is controlled by the time set by the program, after the regeneration barrel 2 finishes the regeneration, the regeneration barrel 2 enters the adsorption work, the original adsorption barrel 1 carries out the regeneration work, at the moment, the flow direction of the gas and the reversing of the first reversing valve 3 and the second reversing valve 4 are restarted and recycled, thereby the uninterrupted cyclic work of the adsorption barrel 1 and the regeneration barrel 2 is protected, and the uninterrupted supply of the dry gas is ensured.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. The utility model provides a switching-over valve of suction dryer which characterized in that: comprises an adsorption barrel (1), a regeneration barrel (2), a second reversing valve (4) and a first reversing valve (3);

adsorption bucket (1): the air inlet of the adsorption barrel (1) is communicated with a first air inlet pipe (5), and the air outlet of the adsorption barrel (1) is communicated with a first air outlet pipe (6);

regeneration barrel (2): an air inlet of the regeneration barrel (2) is communicated with an air inlet pipe II (8), and an air outlet of the regeneration barrel (2) is communicated with an air outlet pipe II (7);

second direction change valve (4): one end of the second reversing valve (4) is communicated with the first air inlet pipe (5), the other end of the second reversing valve is communicated with the second air inlet pipe (8), the structure of the first reversing valve (3) is the same as that of the second reversing valve (4), one end of the first reversing valve (3) is communicated with the first air outlet pipe (6), and the other end of the first reversing valve is communicated with the second air outlet pipe (7);

the air inlet pipe is characterized by further comprising a control valve (12), a bypass pipeline is arranged on the side faces of the first air inlet pipe (5) and the second air inlet pipe (8), and the bypass pipeline is connected with a silencer and the control valve (12).

2. The reversing valve of a blotting machine as recited in claim 1, wherein: second switching-over valve (4) contain valve body shell (41), spacer (42), piston (43) and end cover (44), end cover (44) are equipped with two sets ofly, and install at the both ends of valve body shell (41) two sets of end covers (44), are equipped with air vent (10) on end cover (44), and two sets of air vent (10) communicate with intake pipe (5) and intake pipe (8) No. two respectively, install on the inner wall of valve body shell (41) spacer (42), piston (43) are located the inside of spacer (42), and with the inner wall side left and right sliding connection of spacer (42), gas access hole (11) have been seted up to the side of valve body shell (41).

3. The reversing valve of a blotting machine as recited in claim 2, wherein: the piston further comprises a flow limiting hole (9), and the flow limiting hole (9) is formed in the middle of the piston (43).

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