CN209828945U

CN209828945U - Catalytic hydrogenation device

Info

Publication number: CN209828945U
Application number: CN201920286316.XU
Authority: CN
Inventors: 王燕; 邢艳; 张智芳; 张亚
Original assignee: Yulin University
Current assignee: Yulin University
Priority date: 2019-03-07
Filing date: 2019-03-07
Publication date: 2019-12-24
Anticipated expiration: 2029-03-07

Abstract

The utility model provides a catalytic hydrogenation device for solve the extravagant problem of catalyst recovery and reaction heat, including hydrogenation cauldron, with the solution kettle, catalyst jar and the catalyst setting tank that hydrogenation cauldron links to each other, catalyst setting tank top is connected with hydrogenation cauldron through taking the pump valve pipeline, and catalyst setting tank bottom is connected with the catalyst jar through taking the pump valve pipeline, and the bottom of hydrogenation cauldron is passed through the pipeline and is linked to each other with the cooling device circulation, and hydrogenation cauldron lower part and hydrogen circulating device, hydrogen mixing box circulation connection, the exit end of hydrogenation cauldron and hydrogen circulating device's intake pipe intercommunication, and hydrogen circulating device's blast pipe links to each other with the entry end of hydrogen mixing box, and the exit end of hydrogen mixing box links to each other with the entry end of hydrogenation cauldron. The utility model is provided with a catalyst settling tank to realize the recycling of the catalyst; the utility model discloses be equipped with cooling device, let in water hydrogenation cauldron again after lithium bromide absorbs heat energy and cool down, rational utilization produced heat energy in the hydrogenation cauldron.

Description

Catalytic hydrogenation device

Technical Field

The utility model relates to the field of organic chemical equipment, in particular to a catalytic hydrogenation device.

Background

The existing catalytic hydrogenation device is produced intermittently in the production process, wherein the hydrogenation kettle needs to be emptied during the recovery of the catalyst, the catalyst is recovered from the bottom of the tank, the problems that the catalyst is in contact with air in the recovery process to cause the reduction of the purity of the catalyst and the recovery rate is not high are solved, the existing equipment cannot simultaneously carry out feeding work during the recovery of the catalyst, the production capacity of the equipment is limited, and the existing equipment does not have an online recycling device for intermediate products and the catalyst, so that the waste of raw materials is increased, the production cost and the environmental pollution are increased. In addition, the hydrogenation kettle is cooled by continuously introducing cold water in the reaction process, so that the problem that the catalytic efficiency of the catalyst is reduced due to overhigh temperature in the hydrogenation kettle is avoided, but the water heated by the hydrogenation kettle is directly discharged to cause waste of heat energy.

SUMMERY OF THE UTILITY MODEL

The utility model provides a catalytic hydrogenation device has solved catalyst recovery and reaction heat reuse's among the prior art problem.

The technical scheme of the utility model is realized like this:

a catalytic hydrogenation device comprises a hydrogenation kettle, a dissolving kettle, a catalyst tank and a catalyst settling tank which are connected with the hydrogenation kettle, wherein the top of the catalyst settling tank is connected with the hydrogenation kettle through a pipeline with a pump valve, a pipeline port for connecting the catalyst settling tank and the hydrogenation kettle enters from the top of the hydrogenation kettle and is inserted into the bottom of the hydrogenation kettle, the bottom of the catalyst settling tank is connected with the catalyst tank through a pipeline with a pump valve, the bottom of the hydrogenation kettle is circularly connected with a cooling device through a pipeline, the cooling device comprises an evaporator, a condenser, a return pipe and a buffer tank, the buffer tank is communicated with a return inlet of the evaporator, the return pipe comprises a condenser pipe, a connecting pipe and a buffer tank pipe, the condenser pipe is communicated with a return outlet of the condenser, the buffer tank pipe is communicated with the buffer tank, the top end of the connecting pipe is higher than the condenser pipe and the buffer tank pipe, and two pipe ends of the connecting pipe are respectively communicated with the condenser, hydrogenation cauldron lower part and hydrogen circulating device, hydrogen mixing box circulation connection, hydrogen circulating device are including intake pipe, blast pipe and cylinder, be equipped with the inlet port between intake pipe and the cylinder, be equipped with the exhaust hole between blast pipe and the cylinder, be equipped with the piston head in the cylinder, the piston head links to each other with the transmission who drives the piston head, and the cylinder both sides are equipped with a water tank respectively, and wherein, intake pipe and blast pipe respectively pass a water tank, and the exit end of hydrogenation cauldron communicates with hydrogen circulating device's intake pipe, and hydrogen circulating device's blast pipe links to each other with the entry end of hydrogen mixing box, and the exit end of hydrogen mixing box links to each other with the entry.

Preferably, an air inlet one-way valve is arranged between the air inlet hole and the cavity of the air cylinder.

Preferably, an exhaust check valve is arranged between the exhaust hole and the cavity of the air cylinder.

Preferably, the transmission device comprises a piston rod and a rotating rod, one end of the piston rod is hinged to the piston head, and the other end of the piston rod is hinged to the rotating rod.

Preferably, the water tank is equipped with inlet tube and outlet pipe, inlet tube and outlet pipe all are equipped with the valve.

The utility model has the advantages that:

1. the utility model discloses be equipped with the catalyst settling cask, the catalyst jar passes through the pipeline and adds the hydrogenation cauldron to the catalyst, and catalytic temperature rises to the regulation temperature and reacts, and the cooling after the reaction finishes makes the catalyst get into the catalyst settling cask from inserting hydrogenation cauldron bottom catalyst settling pipeline entry, and the catalyst settling cask returns the catalyst jar through the catalyst that subsides, has realized that airtight area presses under the state, and the reuse of catalyst has reduced manufacturing cost.

2. The utility model discloses be equipped with cooling device, use the lithium bromide solution as absorbent material, use water as the refrigerant, from condenser exhaust refrigerant through backflow duct flow to baffle-box, then the refrigerant gets into the evaporimeter behind the baffle-box, the refrigerant is cushioned in the baffle-box, effectively reduce the velocity of flow and the impulsive force of the refrigerant of flowing to the evaporimeter, let in water again and add the hydrogen cauldron and cool down after lithium bromide absorbs heat energy, the rational utilization produced heat energy in adding the hydrogen cauldron, the waste of heat energy has been avoided, and resources are saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of a catalytic hydrogenation apparatus of the present invention;

FIG. 2 is a schematic structural view of the cooling apparatus shown in FIG. 1;

FIG. 3 is a schematic structural view of the hydrogen circulation device shown in FIG. 1;

the system comprises a catalyst tank 1, a catalyst settling tank 2, a hydrogenation kettle 3, a cooling device 4, a condenser 41, a condenser 42, an evaporator 43, a buffer tank 44, a return pipe 441, a buffer tank pipe 442, a connecting pipe 443, a condenser pipe 5, a hydrogen circulating device 51, an air cylinder 52, a piston head 521, a piston rod 522, a rotating rod 53, an exhaust hole 531, an exhaust check valve 531, an exhaust pipe 54, an exhaust pipe 55, a water tank 551, a water inlet pipe 551, a water outlet pipe 552, an air inlet pipe 56, an air inlet hole 57, an air inlet check valve 571, a dissolving kettle 6 and a hydrogen mixing tank 7.

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 efforts belong to the protection scope of the present invention.

A catalytic hydrogenation device, as shown in FIGS. 1-3, comprises a hydrogenation kettle 3, a dissolving kettle 6 connected with the hydrogenation kettle 3, a catalyst tank 1 and a catalyst settling tank 2, the top of the catalyst settling tank 2 is connected with the hydrogenation kettle 3 through a pipeline with a pump valve, the pipeline port connecting the catalyst settling tank 2 and the hydrogenation kettle 3 enters from the top of the hydrogenation kettle 3 and is inserted into the bottom of the hydrogenation kettle 3, the bottom of the catalyst settling tank 2 is connected with the catalyst tank 1 through a pipeline with a pump valve, the bottom of the hydrogenation kettle 3 is circularly connected with a cooling device 4 through a pipeline, the cooling device 4 comprises an evaporator 42, a condenser 41, a return pipe 44 and a buffer tank 43, the buffer tank 43 is communicated with the return inlet of the evaporator 42, the return pipe 44 comprises a condenser pipe 443 for communicating with the return outlet of the condenser 41, a connecting pipe 442, and a buffer tank pipe 441 for communicating with the buffer tank 43, wherein, the top end of the connecting pipe 442 is higher than the condenser pipe 443 and the buffer tank pipe 441, two pipe ends of the connecting pipe 442 are respectively communicated with the condenser pipe 443 and the buffer tank pipe 441, the hot water after the reaction of the hydrogenation kettle 3 enters the condenser 41, is discharged from the condenser 41 and flows to the buffer tank 43 through the return pipe 44, then enters the evaporator 42 through the buffer tank 43, the water is buffered in the buffer tank 43, the lithium bromide absorbs the heat energy and then introduces the water into the hydrogenation kettle 3 for cooling, the lower part of the hydrogenation kettle 3 is circularly connected with the hydrogen circulating device 5 and the hydrogen mixing tank 7, the hydrogen circulating device 5 comprises an air inlet pipe 56, an air outlet pipe 54 and a cylinder 51, an air inlet hole 57 is arranged between the air inlet pipe 56 and the cylinder 51, an air outlet hole 53 is arranged between the air outlet pipe 54 and the cylinder 51, a piston head 52 is arranged in the cylinder 51, and the piston head 52 is connected, two sides of the cylinder 51 are respectively provided with a water tank 55, wherein an air inlet pipe 56 and an air outlet pipe 54 respectively penetrate through one water tank 55, the outlet end of the hydrogenation kettle 3 is communicated with the air inlet pipe 56 of the hydrogen circulating device 5, the air outlet pipe 54 of the hydrogen circulating device 5 is connected with the inlet end of the hydrogen mixing box 7, and the outlet end of the hydrogen mixing box 7 is connected with the inlet end of the hydrogenation kettle 3.

On the basis of the above technical scheme, an air inlet check valve 571 is arranged between the air inlet 57 and the cavity of the air cylinder 51.

On the basis of the above technical scheme, an exhaust check valve 531 is arranged between the exhaust hole 53 and the cavity of the cylinder 51.

On the basis of the technical scheme, the transmission device comprises a piston rod 521 and a rotating rod 522, wherein one end of the piston rod 521 is hinged with the piston head 52, and the other end of the piston rod 521 is hinged with the rotating rod 522.

On the basis of the above technical solution, the water tank 55 is provided with a water inlet pipe 551 and a water outlet pipe 552, and both the water inlet pipe 551 and the water outlet pipe 552 are provided with valves.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A catalytic hydrogenation device is characterized by comprising a hydrogenation kettle, a dissolving kettle, a catalyst tank and a catalyst settling tank, wherein the dissolving kettle, the catalyst tank and the catalyst settling tank are connected with the hydrogenation kettle through a pipeline with a pump valve, a pipeline port for connecting the catalyst settling tank and the hydrogenation kettle enters from the top of the hydrogenation kettle and is inserted into the bottom of the hydrogenation kettle, the bottom of the catalyst settling tank is connected with the catalyst tank through a pipeline with a pump valve, the bottom of the hydrogenation kettle is circularly connected with a cooling device through a pipeline, the cooling device comprises an evaporator, a condenser, a return pipe and a buffer tank, the buffer tank is communicated with a return inlet of the evaporator, the return pipe comprises a condenser pipe, a connecting pipe and a buffer tank pipe, the condenser pipe is communicated with a return outlet of the condenser, the buffer tank pipe is communicated with the buffer tank, and the top end of the connecting pipe is higher than the condenser pipe and the buffer tank pipe, two pipe ends of connecting pipe communicate with condenser pipe and surge tank pipe respectively, hydrogenation cauldron lower part and hydrogen circulating device, hydrogen mixing box cyclic connection, and hydrogen circulating device is including intake pipe, blast pipe and cylinder, be equipped with the inlet port between intake pipe and the cylinder, be equipped with the exhaust hole between blast pipe and the cylinder, be equipped with the piston head in the cylinder, the piston head links to each other with the transmission of drive piston head, and the cylinder both sides are equipped with a water tank respectively, and wherein, intake pipe and blast pipe respectively pass a water tank, and the exit end of hydrogenation cauldron communicates with hydrogen circulating device's intake pipe, and hydrogen circulating device's blast pipe links to each other with the entry end of hydrogen mixing box, and the exit end of hydrogen mixing box links to each other with the.

2. The catalytic hydrogenation unit as claimed in claim 1, wherein an inlet check valve is provided between the inlet hole and the chamber of the cylinder.

3. The catalytic hydrogenation unit as claimed in claim 1, wherein an exhaust check valve is provided between the exhaust hole and the chamber of the cylinder.

4. The catalytic hydrogenation apparatus as claimed in claim 1, wherein the transmission device comprises a piston rod and a rotating rod, one end of the piston rod is hinged to the piston head, and the other end of the piston rod is hinged to the rotating rod.

5. The catalytic hydrogenation apparatus of claim 1, wherein the water tank is provided with a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are provided with valves.