CN203342799U - Pressure-relief buffer tank applied to hydantoin production equipment - Google Patents
Pressure-relief buffer tank applied to hydantoin production equipment Download PDFInfo
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- CN203342799U CN203342799U CN2013204133145U CN201320413314U CN203342799U CN 203342799 U CN203342799 U CN 203342799U CN 2013204133145 U CN2013204133145 U CN 2013204133145U CN 201320413314 U CN201320413314 U CN 201320413314U CN 203342799 U CN203342799 U CN 203342799U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model relates to hydantoin production equipment, and particularly relates to a pressure-relief buffer tank applied to hydantoin production equipment. The production equipment compromises a pipeline-type reactor, a tail gas treatment device, a synthesis liquid storage tank, a condenser and the pressure relief buffer tank. The pressure relief buffer tank is an elliptical sealing cavity; a valve is arranged at the bottom of the cavity; the upper part of the cavity is respectively connected to the pipeline-type reactor, the tail gas treatment device, the synthesis liquid storage tank and the condenser through pipelines; the lower part of the pressure relief buffer tank is connected to a gas-liquid separator through a pipeline; a stirring device is arranged in the pressure relief buffer tank. The pressure relief buffer tank has the advantages that materials can be temporally stored, the reaction time of the materials in the pipeline-type reactor can be ensured, meanwhile, the length of the pipeline-type reactor is shortened, when the internal pressure of the pipeline-type reactor is too high, the pressure-relief buffer tank plays a role in pressure relief so as to ensure safety, thus the operation safety is guaranteed, and the safety accidents caused by the too high internal pressure of the pipeline-type reactor are avoided.
Description
Technical field
The utility model relates to a kind of production equipment of producing hydantoins, specifically refers to a kind of release surge tank that is applied to the production equipment of hydantoins.
Background technology
Hydantoins is called for short glycolylurea, the production of existing hydantoins be first through the ammonia carboxylation reaction, then product is concentrated after with the concentrated sulfuric acid carry out acidification reaction, separation and purification obtains product again.The ammonia carboxylation reaction comprises with raw material hydroxyacetonitrile, carbonic hydroammonium as reactive material.Consersion unit mainly contains reactor, feeder, circulating pump, packed tower.Add water successively in reactor according to formula, start agitating device, slowly heat up, after temperature constant, start the carbonic hydroammonium feeder, hydroxyacetonitrile drips valve, keeps both to drip in still evenly.Interval is after a little time, starts circulating pump and material is pumped into to packed tower constantly circulates, and keeps constant temperature, until after reaction raw materials adds, and insulation a period of time, more concentrated acidifying, centrifugal product; In the domestic process producing glycolylurea; often there will be material can not fully react the waste that causes resource; because of reaction, in closed environment, carry out again simultaneously, thus in pipeline reactor, the situation that pressure is excessive may appear, if release is not in time; may cause blast; have very large potential safety hazard, all carry out under high-tension apparatus and adopt hydroxyacetonitrile and carbonic hydroammonium to prepare glycolylurea abroad, cost is too high;, there is great potential safety hazard too in the operating process complexity.
Summary of the invention
For realizing above-mentioned purpose: the utility model aims to provide a kind of release surge tank that is applied to the production equipment of hydantoins, make to produce in the process of hydantoins and not only can keep in material, and the material repetitive cycling can be sent into to pipeline reactor, can also play the effect of pressure release simultaneously when the pipeline reactor internal pressure is excessive, both guaranteed safety, also improve yield and the quality of product, and reduced environmental pollution.
For solving the above problems: a kind of release surge tank that is applied to the production equipment of hydantoins, production equipment comprises pipeline reactor, exhaust gas processing device, synthetic liquid storage tank, condenser and release surge tank, described release surge tank is an ovaloid seal cavity, the bottom of cavity is provided with valve, the top of cavity is connected with pipeline reactor, exhaust gas processing device, synthetic liquid storage tank, condenser respectively by pipeline, the bottom of release surge tank is connected with gas-liquid separator by pipeline, in described release surge tank, is provided with agitating device.
Described cavity comprises dome-type upper cover, staged cylindrical tank and dome-type lower cover, the upper end seal welding of dome-type upper cover and cylindrical type tank body, the lower end of cylindrical tank and dome-type lower cover seal welding.
Be covered with offgas duct on described dome-type, the tail gas mouth of pipe is connected with exhaust gas processing device, and described tail gas mouth of pipe place can arrange safety-valve, makes when the pipeline reactor internal pressure is excessive, can play the effect of pressure release, guarantees safety.
The dome-type upper cover of described cavity is bolted with pipeline one end, and an end of described pipeline one end and condenser is spirally connected by flange seal, and the other end and the exhaust gas processing device of condenser are tightly connected.
The material of described cavity is anti-chemical corroding metal.
The beneficial effects of the utility model: cavity not only can be kept in material, and can the material repetitive cycling be sent into to the pipeline reactor reaction in conjunction with tubing pump and pipeline, can guarantee the reaction time of material in pipeline reactor, can reduce the length of pipeline reactor again simultaneously, the volume of cavity is larger in addition, tail gas mouth of pipe place is provided with safety valve, can play the effect of pressure release when the pipeline reactor internal pressure is excessive, guarantee safety, make operation obtain safety guarantee, avoid the pipeline reactor internal pressure too high and cause security incident.
The accompanying drawing explanation
Fig. 1 is the operation principle schematic diagram of producing hydantoins equipment.
Fig. 2 is planar structure schematic diagram of the present utility model.
Description of reference numerals: release surge tank 1, agitating device 101, dome-type upper cover 102, dome-type lower cover 103, staged cylindrical tank 104, pipeline reactor 2, condenser 3, exhaust gas processing device 4, synthetic liquid storage tank 5.
The specific embodiment
Describe the specific embodiment of the present utility model in detail below in conjunction with Figure of description:
A kind of release surge tank 1 that is applied to the production equipment of hydantoins, production equipment comprises pipeline reactor 2, exhaust gas processing device 4, synthetic liquid storage tank 5, condenser and release surge tank 1, described release surge tank 1 is an ovaloid seal cavity, described cavity comprises dome-type upper cover 102, staged cylindrical tank 104 and dome-type lower cover 103, the upper end seal welding of dome-type upper cover 102 and staged cylindrical tank 104, the lower end of staged cylindrical tank 104 and dome-type lower cover 103 seal weldings, dome-type upper cover 102 is provided with offgas duct, the tail gas mouth of pipe is connected with exhaust gas processing device 4, described tail gas mouth of pipe place can arrange safety-valve, make in pipeline reactor 2 internal pressures when excessive, can play the effect of pressure release, guarantee safety, the bottom of cavity is provided with valve, the top of cavity is connected with pipeline reactor 2, exhaust gas processing device 4, synthetic liquid storage tank 5, condenser respectively by pipeline, the dome-type lower cover 103 of cavity is connected with gas-liquid separator by pipeline, is provided with agitating device 101 in described cavity, because the material of cavity is anti-chemical corroding metal, therefore cavity not only can be kept in material, can also prevents that cavity inner wall and material or reactant liquor etc. from chemical reaction occurring, thereby generate impurity and finally affect the quality of product, and cavity can be sent the material repetitive cycling into pipeline reactor 2 reactions in conjunction with tubing pump and pipeline, can increase the reaction time of material in pipeline reactor 2, can reduce the length of pipeline reactor 2 again simultaneously, pressure release surge tank volume is larger in addition, also can safety valve be set at the tail gas mouth of pipe of cavity, can play the effect of pressure release when excessive in pipeline reactor 2 internal pressures, guarantee safety, make operation obtain safety guarantee, avoid pipeline reactor 2 internal pressures too high and cause security incident.
The above, it is only the preferred embodiment of the utility model structure, not technical scope of the present utility model is made to any restriction, therefore any trickle modification, equivalent variations and modification that every foundation technical spirit of the present utility model is done above embodiment, all still belong in the scope of the technical solution of the utility model.
Claims (5)
1. a release surge tank that is applied to the production equipment of hydantoins, production equipment comprises pipeline reactor, exhaust gas processing device, synthetic liquid storage tank, condenser and release surge tank, it is characterized in that: described release surge tank is an ovaloid seal cavity, the bottom of cavity is provided with valve, the top of cavity is connected with pipeline reactor, exhaust gas processing device, synthetic liquid storage tank, condenser respectively by pipeline, the bottom of release surge tank is connected with gas-liquid separator by pipeline, in described release surge tank, is provided with agitating device.
2. a kind of release surge tank that is applied to the production equipment of hydantoins according to claim 1, it is characterized in that: described cavity comprises dome-type upper cover, staged cylindrical tank and dome-type lower cover, the upper end seal welding of dome-type upper cover and cylindrical type tank body, the lower end of cylindrical tank and dome-type lower cover seal welding.
3. a kind of release surge tank that is applied to the production equipment of hydantoins according to claim 2, it is characterized in that: be covered with offgas duct on described dome-type, the tail gas mouth of pipe is connected with exhaust gas processing device, described tail gas mouth of pipe place can arrange safety-valve, make when the pipeline reactor internal pressure is excessive, can play the effect of pressure release, guarantee safety.
4. a kind of release surge tank that is applied to the production equipment of hydantoins according to claim 1, it is characterized in that: the dome-type upper cover of described cavity is bolted with pipeline one end, one end of pipeline one end and condenser is spirally connected by flange seal, and the other end and the exhaust gas processing device of condenser are tightly connected.
5. a kind of release surge tank that is applied to the production equipment of hydantoins according to claim 1, it is characterized in that: the material of described cavity is anti-chemical corroding metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204133145U CN203342799U (en) | 2013-07-12 | 2013-07-12 | Pressure-relief buffer tank applied to hydantoin production equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204133145U CN203342799U (en) | 2013-07-12 | 2013-07-12 | Pressure-relief buffer tank applied to hydantoin production equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203342799U true CN203342799U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204133145U Expired - Fee Related CN203342799U (en) | 2013-07-12 | 2013-07-12 | Pressure-relief buffer tank applied to hydantoin production equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN203342799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172401A (en) * | 2018-10-30 | 2019-08-27 | 武汉武药制药有限公司 | A kind of circulating biological enzymic catalytic reaction system |
-
2013
- 2013-07-12 CN CN2013204133145U patent/CN203342799U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110172401A (en) * | 2018-10-30 | 2019-08-27 | 武汉武药制药有限公司 | A kind of circulating biological enzymic catalytic reaction system |
| CN110172401B (en) * | 2018-10-30 | 2022-10-04 | 武汉武药制药有限公司 | Circulating biological enzyme catalysis reaction system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hubei Xi Tai Chemical Co., Ltd. Assignor: Wuxi Meihua Chemical Co., Ltd. Contract record no.: 2014420000063 Denomination of utility model: Pressure-relief buffer tank applied to hydantoin production equipment Granted publication date: 20131218 License type: Exclusive License Record date: 20140507 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20150712 |
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| EXPY | Termination of patent right or utility model |