CN212417467U

CN212417467U - Environment-friendly BDO is synthetic with circulation hydrogen recovery unit

Info

Publication number: CN212417467U
Application number: CN202020897085.9U
Authority: CN
Inventors: 张秀秀; 王富斌; 王建云; 毛金元; 王衍庆; 黄建
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-01-29
Anticipated expiration: 2030-05-21

Abstract

The utility model discloses an environment-friendly BDO is synthetic with circulation hydrogen recovery unit, including gas holder, cooler and purification mechanism, the end of giving vent to anger of cooler is connected with the inlet end of purification mechanism, the end of giving vent to anger of purification mechanism passes through the pipe intercommunication with the intake pipe of gas holder, threaded connection has the self priming pump on the pipe, the inlet end fixed insertion of cooler is equipped with the intake pipe, threaded connection has electromagnetic valve in the intake pipe, the fixed insertion in interior top of gas holder is equipped with the outlet duct, threaded connection has the air outlet valve on the outlet duct, purification mechanism includes baffle and the device case of three crisscross setting, the baffle all is equipped with the opening with the inner wall of device case, and is three it is equipped with active carbon adsorption net, hollow fiber membrane and palladium membrane to fix inserting respectively in the opening. The utility model discloses in through the setting of cooling body, purification mechanism, make the device can effectually carry out recycle to hydrogen to the waste of the energy has been reduced.

Description

Environment-friendly BDO is synthetic with circulation hydrogen recovery unit

Technical Field

The utility model relates to a hydrogen recovery plant technical field especially relates to a synthetic circulation hydrogen recovery unit of using of environment-friendly BDO.

Background

In the reaction of synthesizing BDO by hydrogenating butynediol, inert gas is continuously generated, so that when the inert gas in a hydrogen circulation system is increased, the hydrogen concentration is reduced, more byproducts are generated, and the purity of BDO is influenced. In order to ensure the hydrogen concentration, a certain emptying amount of hydrogen is required to ensure that inert gas in the hydrogen can be removed in time, wherein the detected gas concentration hydrogen content is required to be more than 94%, and the design amount of emptying at the top of the gas phase separation equipment of the hydrogen circulation compressor is 8.5Kg/h according to the original design value and relevant data in the PFD.

However, according to the relevant data in the operating protocol, the blow-off normally operates at 1% of the hydrogen feed, approximately 6.93Kg/h calculated at full load, and in practice at most 4% of the hydrogen blow-off, i.e. 37.6 Kg/h. According to the current analysis result, the hydrogen concentration is basically maintained to be more than 94 percent, the emptying amount is maintained to be 55Kg/h to 65Kg/h, and the part of gas is discharged from a circulating gas system of a gas phase separation device of a hydrogen circulating compressor, then discharged into an emptying pipe network and sent to a torch for incineration, thereby causing great waste.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the blow-down pipe network is discharged after partial gas is discharged from the gas circulation system of the gas phase separation equipment of the hydrogen circulation compressor in the prior art, and sending the gas to the torch for burning, which causes great waste, and the proposed circulating hydrogen recovery device for the synthesis of the environment-friendly BDO.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an environment-friendly BDO is synthetic with circulation hydrogen recovery unit, includes gas holder, cooler and purification mechanism, the end of giving vent to anger of cooler is connected with the inlet end of purification mechanism, the end of giving vent to anger of purification mechanism passes through the pipe intercommunication with the intake pipe of gas holder, threaded connection has the self priming pump on the pipe, the inlet end of cooler is fixed to be inserted and is equipped with the intake pipe, threaded connection has solenoid valve in the intake pipe, the fixed inserting in interior top of gas holder is equipped with the outlet duct, threaded connection has the air outlet valve on the outlet duct, purification mechanism includes baffle and the device case of three crisscross setting, the baffle all is equipped with the opening with the inner wall of device case, and is three fixed inserting respectively in the opening is equipped with active carbon adsorption net, hollow fiber membrane and palladium membrane.

Preferably, a check valve is threadedly connected to the conduit.

Preferably, a sealing ring is fixedly sleeved at one end of the guide pipe, and one side of the sealing ring is abutted against the inner wall of the air storage tank.

Preferably, an air pressure sensor is fixedly inserted into the top of the air storage tank.

Preferably, the top of the outlet pipe is fixedly sleeved with a connecting flange.

Preferably, the purification mechanism is a hydrogen purifier.

Has the advantages that:

1. the circulating gas is guided into the cooler through the gas inlet pipe to be cooled, then is guided into the purification mechanism to be purified, and then enters the gas storage tank through the guide pipe, when the gas storage tank needs to be used, the circulating gas is guided out through the gas outlet pipe, and meanwhile, the hydrogen can be effectively purified and filtered through the activated carbon adsorption net, the hollow fiber membrane and the palladium membrane in the purification mechanism;

2. meanwhile, the check valve can effectively prevent hydrogen from flowing backwards, the gas pressure in the gas storage tank can be monitored by the gas pressure sensor, the gas can be prevented from leaking by the sealing ring, and the connecting flange can conveniently fixedly connect the gas outlet pipe.

Drawings

FIG. 1 is a schematic structural diagram of an environment-friendly recycle hydrogen recovery device for BDO synthesis provided by the utility model;

fig. 2 is the internal structure schematic diagram of the purification mechanism of the circulating hydrogen recovery device for environment-friendly BDO synthesis provided by the utility model.

In the figure: 1 gas holder, 2 coolers, 3 purification mechanisms, 4 pipes, 5 self priming pumps, 6 intake pipes, 7 solenoid valve, 8 outlet ducts, 9 outlet valves, 10 check valves, 11 sealing rings, 12 baroceptors, 13 flange connections, 14 baffles, 15 activated carbon adsorption net, 16 hollow fiber membrane, 17 palladium membrane, 18 device casees.

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.

Referring to fig. 1-2, an environment-friendly circulating hydrogen recovery device for BDO synthesis comprises a gas storage tank 1, a cooler 2 and a purification mechanism 3, wherein the purification mechanism 3 is a hydrogen purifier, and the gas outlet end of the cooler 2 is connected with the gas inlet end of the purification mechanism 3 and is used for guiding cooled gas into the purification mechanism 3;

in the embodiment, the gas outlet end of the purification mechanism 3 is communicated with the gas inlet pipe of the gas storage tank 1 through a conduit 4 and is used for guiding purified gas into the gas storage tank 1, the purification mechanism 3 comprises three partition plates 14 and a device box 18 which are arranged in a staggered mode, through holes are formed in the inner walls of the partition plates and the device box, an activated carbon adsorption net 15, a hollow fiber membrane 16 and a palladium membrane 17 are fixedly inserted into the three through holes respectively, hydrogen is sequentially adsorbed and filtered by the activated carbon adsorption net 15, the hollow fiber membrane 16 and the palladium membrane 17 and then is guided into the gas storage tank 1 through the conduit 4, a check valve 10 is connected to the conduit 4 in a threaded mode and prevents backflow of the gas, a sealing ring 11 is fixedly sleeved at one end of the conduit 4, one side of the sealing ring 11 abuts against the inner wall;

in the embodiment, a self-sucking pump 5 is connected to the guide pipe 4 in a threaded manner, so that gas can be conveniently guided into the gas storage tank 1, a gas inlet pipe 6 is fixedly inserted into the gas inlet end of the cooler 2 and used for guiding inert gas into the cooler 2, and an electromagnetic valve 7 is connected to the gas inlet pipe 6 in a threaded manner and used for controlling the flow of the inert gas;

in this embodiment, the fixed outlet duct 8 that is equipped with of inserting in the interior top of gas holder 1 for derive hydrogen, the fixed flange 13 that has cup jointed in top of outlet duct 8, the convenience is connected with external equipment, threaded connection has a gas outlet valve 9 on the outlet duct 8, and the fixed inserting in top of gas holder 1 is equipped with baroceptor 12 for detect the gas pressure in the gas holder 1.

In this embodiment, cool off in leading-in cooler 2 with inert gas through intake pipe 6, then in leading-in purification mechanism 3, carry out purification treatment, then in getting into gas holder 1 through pipe 4, when needs use, it can to derive through outlet duct 8.

In this embodiment, check valve 10 can effectively prevent the refluence of hydrogen simultaneously, and baroceptor 12 can monitor the gas pressure in the gas holder 1 simultaneously, and sealing washer 11 can prevent gaseous the spilling simultaneously, and flange 13 can conveniently carry out fixed connection to outlet duct 8.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an environment-friendly BDO is synthetic with circulation hydrogen recovery unit, includes gas holder (1), cooler (2) and purification mechanism (3), its characterized in that: the air outlet end of the cooler (2) is connected with the air inlet end of the purifying mechanism (3), the air outlet end of the purification mechanism (3) is communicated with the air inlet pipe of the air storage tank (1) through a conduit (4), a self-sucking pump (5) is connected on the guide pipe (4) in a threaded manner, an air inlet pipe (6) is fixedly inserted at the air inlet end of the cooler (2), an electromagnetic valve (7) is connected to the air inlet pipe (6) in a threaded manner, an air outlet pipe (8) is fixedly inserted at the inner top of the air storage tank (1), the gas outlet pipe (8) is in threaded connection with a gas outlet valve (9), the purification mechanism (3) comprises three baffle plates (14) and a device box (18) which are arranged in a staggered manner, the inner walls of the partition board and the device box are provided with through holes, and an activated carbon adsorption net (15), a hollow fiber membrane (16) and a palladium membrane (17) are fixedly inserted into the through holes respectively.

2. The environment-friendly circulating hydrogen recovery device for BDO synthesis as claimed in claim 1, wherein: the guide pipe (4) is connected with a check valve (10) in a threaded manner.

3. The environment-friendly circulating hydrogen recovery device for BDO synthesis as claimed in claim 1, wherein: the fixed cover of one end of pipe (4) has connect sealing washer (11), one side and the inner wall of gas holder (1) of sealing washer (11) offset.

4. The environment-friendly circulating hydrogen recovery device for BDO synthesis as claimed in claim 1, wherein: an air pressure sensor (12) is fixedly inserted into the top of the air storage tank (1).

5. The environment-friendly circulating hydrogen recovery device for BDO synthesis as claimed in claim 1, wherein: and the top of the air outlet pipe (8) is fixedly sleeved with a connecting flange (13).

6. The environment-friendly circulating hydrogen recovery device for BDO synthesis as claimed in claim 1, wherein: the purification mechanism (3) is a hydrogen purifier.