CN113368781A - Corrosion-resistant sealing structure and double-layer reaction kettle with same - Google Patents
Corrosion-resistant sealing structure and double-layer reaction kettle with same Download PDFInfo
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- CN113368781A CN113368781A CN202110555474.2A CN202110555474A CN113368781A CN 113368781 A CN113368781 A CN 113368781A CN 202110555474 A CN202110555474 A CN 202110555474A CN 113368781 A CN113368781 A CN 113368781A
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/03—Pressure vessels, or vacuum vessels, having closure members or seals specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0073—Sealings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/02—Apparatus characterised by being constructed of material selected for its chemically-resistant properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/002—Component parts of these vessels not mentioned in B01J3/004, B01J3/006, B01J3/02 - B01J3/08; Measures taken in conjunction with the process to be carried out, e.g. safety measures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/04—Pressure vessels, e.g. autoclaves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00054—Controlling or regulating the heat exchange system
- B01J2219/00056—Controlling or regulating the heat exchange system involving measured parameters
- B01J2219/00058—Temperature measurement
- B01J2219/00063—Temperature measurement of the reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00076—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements inside the reactor
- B01J2219/00085—Plates; Jackets; Cylinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/025—Apparatus characterised by their chemically-resistant properties characterised by the construction materials of the reactor vessel proper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/025—Apparatus characterised by their chemically-resistant properties characterised by the construction materials of the reactor vessel proper
- B01J2219/0254—Glass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/025—Apparatus characterised by their chemically-resistant properties characterised by the construction materials of the reactor vessel proper
- B01J2219/0277—Metal based
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/02—Apparatus characterised by their chemically-resistant properties
- B01J2219/025—Apparatus characterised by their chemically-resistant properties characterised by the construction materials of the reactor vessel proper
- B01J2219/0295—Synthetic organic materials
Abstract
A corrosion resistant sealing structure comprising: an inner liner portion and a mounting portion; the lining part is arranged inside the mounting part; the lining part is of a hollow structure and is used for communicating the medium conveying pipe with a container for providing a medium reaction environment; have the clearance and form the atmospheric pressure regulation space between inside lining portion and the installation department, atmospheric pressure regulation space is used for the inside and outside pressure of balanced inside lining portion. The inner kettle solves the problems of connection and sealing of the outer kettle made of a dissimilar material through the structure, and the inner kettle can be communicated and isolated with the outer kettle. So, through seal structure, realized that the pressurized element corrosion-resistant separates with pressure resistance to reation kettle, for reation kettle's manufacturing provides more nimble material selection space, is favorable to reduction in production cost to guarantee reaction environment's safety and life.
Description
Technical Field
The invention relates to the field of chemical synthesis and laboratories, in particular to a corrosion-resistant sealing structure and a double-layer reaction kettle with the same.
Background
Along with the rapid development of energy and chemical industry in China, the service environment of devices in the industries such as energy, chemical industry and the like is increasingly harsh, more and more devices are used in high-temperature, high-pressure and strong-corrosion environments, the performance investigation of the device materials in the high-temperature, high-pressure and strong-corrosion environments is particularly important, high-temperature and high-pressure corrosion tests are generally carried out in high-temperature autoclaves in laboratories, test kettles of the types are generally made of corrosion-resistant metals, but with the increasingly harsh service environment, the corrosion is increasingly strong, the requirements on impurity ions in media are also increasingly high, and common corrosion-resistant materials cannot meet the test requirements.
Disclosure of Invention
In order to overcome the defects of short service life or high cost of the reaction kettle working in a harsh environment in the prior art, the invention provides a corrosion-resistant sealing structure and a double-layer reaction kettle with the same.
The invention adopts the following technical scheme:
a corrosion resistant sealing structure comprising: an inner liner portion and a mounting portion; the lining part is arranged inside the mounting part; the lining part is of a hollow structure and is used for communicating the medium conveying pipe with a container for providing a medium reaction environment;
have the clearance and form the atmospheric pressure regulation space between inside lining portion and the installation department, atmospheric pressure regulation space is used for the inside and outside pressure of balanced inside lining portion.
Preferably, the air pressure adjusting space is composed of a first space surrounding the periphery of the lining part and a second space communicated with the first space and positioned at the top of the lining part; the first space is filled with a heat conducting medium, and the lining portion has heat conductivity.
Preferably, the mounting part comprises a ring sleeve part and a cover body; the ring sleeve part is sleeved on the periphery of the lining part and fixedly connected with the lining part, and a first space is formed in a gap between the ring sleeve part and the lining part; the cover body is arranged on the ring sleeve part; the cover body, the lining portion and the ring sleeve portion are mutually matched to form a second space, and the second space is located above the lining portion.
Preferably, a transition connecting pipe is arranged between the lining part and the cover body, conveying pipes which are in one-to-one correspondence with the transition connecting pipes are arranged on the cover body, and each conveying pipe is communicated with the inside of the lining part through the corresponding transition connecting pipe; and a temperature measuring component inserted into the inner lining part through a corresponding transition connecting pipe is arranged in at least one conveying pipe.
Preferably, the lining part consists of an inner pipe with two through ends and a cap arranged at the upper end of the inner pipe, and the transition connecting pipe is arranged between the cap and the cover body; two conveying pipes are arranged outside the cover body and respectively used as an air inlet pipe and an air outlet pipe; the cover cap is further provided with an air guide pipe used for being inserted into the container, the air guide pipe is communicated with the air inlet pipe through one of the transition connecting pipes, the temperature measuring part is arranged in the air outlet pipe, and the air outlet pipe is further communicated with the second space.
Preferably, the installation department still includes the locking portion that is used for connecting lid and ring cover portion, locking portion rotates with ring cover portion to be connected, and locking portion is equipped with the internal thread, and the lid lower part is equipped with the external screw thread, locking portion and lid screw thread swivelling joint.
Preferably, ring cover portion periphery is equipped with water cooling part, water cooling part comprises casing and radiating fin, the casing is connected with ring cover portion and cooperates ring cover portion to form the water storage chamber, and radiating fin sets up on ring cover portion and is located the water storage intracavity.
A double-layer reaction kettle comprises the sealing structure, an outer kettle and an inner kettle; the inner kettle is arranged inside the outer kettle and is used for providing a medium reaction environment; the outer kettle is connected with an air pressure adjusting part for adjusting the internal pressure intensity of the outer kettle so as to balance the internal and external pressure difference of the inner kettle;
outer cauldron is including the outer cauldron body and the outer cauldron lid of mutually supporting, seal structure sets up the one side that deviates from the outer cauldron body at outer cauldron lid, the inside lining portion is connected and communicates with interior cauldron.
Preferably, the inner kettle is provided with a connecting port, a connecting piece fixedly connected with the outer periphery of the connecting port is sleeved with the connecting port, and the ring sleeve part and the connecting piece are both connected with the outer kettle cover; the lining part is inserted into the connecting port, and a telescopic gap is formed between the lining part and the connecting port, wherein the lining part and the connecting port are perpendicular to the inserting direction and are opposite in position.
Preferably, the upper surface and the lower surface of the outer kettle cover are respectively provided with a first counter bore and a second counter bore, and the first counter bore and the second counter bore are corresponding in position and are communicated with each other; the first counter bore and the second counter bore are both cylindrical holes and are provided with internal threads; the ring sleeve part and the connecting piece can be made of metal pieces, the ring sleeve part is inserted into the first counter bore and is in threaded connection, and the connecting piece is inserted into the second counter bore and is in threaded connection; the inner lining part and the inner kettle are made of corrosion-resistant materials, the ring sleeve part is fixedly connected with the inner lining part, and the connecting piece is also fixedly connected with the inner kettle; the lining part extends out of the ring sleeve part from the lower part, and the connecting port extends out of the connecting pipe from the upper part; the air pressure adjusting part comprises a pressurized air input pipe and a pressurized air output pipe which are connected with the outer kettle cover; the air outlet pipe is communicated with the pressurized air output pipe through a balance valve.
The invention has the advantages that:
(1) according to the double-layer reaction kettle provided by the invention, through the arrangement of the inner kettle and the outer kettle, the separation of the performance materials of the reaction kettle is realized, a more flexible material selection space is provided for the manufacture of the reaction kettle, the reduction of the production cost is facilitated, and the safety and the service life of the reaction environment are ensured. The inner kettle is communicated with a conveying pipe outside the outer kettle through a sealing structure. So, through seal structure, can prevent that the reactant from revealing in the outer cauldron, guarantee the safe in utilization of outer cauldron.
(2) According to the sealing structure, the lining part is in contact with the medium, and the air pressure inside and outside the lining part is balanced through the air pressure adjusting space, so that the lining part is prevented from bursting due to the internal and external pressure difference, the pressure resistance requirement of the lining part is reduced, and the material selecting space of the lining part is more flexible.
(3) The air pressure adjusting space is communicated with the air outlet pipe, so that the air pressure adjusting space is communicated with the interior of the inner kettle, the automatic balance of the internal pressure and the external pressure of the lining part can be realized no matter how the medium in the kettle reacts, the secondary condensation process is adopted, the medium in the air outlet pipe is ensured to be in a low-temperature state, and the air outlet pipe cannot be seriously corroded by the strong corrosive medium.
(4) And a double-layer heat exchange structure is adopted to realize condensation of a strong corrosion medium. Through the inside lining portion isolation corrosion, cool off high temperature heat-conducting medium when realizing withstand voltage through the water cooling part, and then condense inside medium of inside lining portion, reduce inside temperature of inside lining portion to reduce the inside gaseous corrosive medium's of inside lining portion content, reduce medium corrosivity. The safety of the whole sealing structure is ensured.
Drawings
FIG. 1 is a schematic diagram of a double-layer reaction kettle with a sealed structure;
FIG. 2 is a partial cross-sectional view of a seal structure;
FIG. 3 is an assembly view of the seal structure;
the figure is as follows: the sealing structure 1, the lining part 11, the inner pipe 111, the cap 112, the mounting part 12, the ring sleeve part 121, the cover body 122, the locking part 123, the first space a1, the second space a2, the temperature measuring part 13, the water cooling part 14, the shell 141, the radiating fins 142, the heat conducting medium 15, the air inlet pipe 16, the air outlet pipe 17, the transition connecting pipe 18 and the air guide pipe 19;
the device comprises an outer kettle 2, an outer kettle cover 21, a first condenser 22, a first counter bore 221, a second counter bore 222, a pressurized gas input pipe 23 and a pressurized gas output pipe 24;
the device comprises an inner kettle 3, an inner kettle cover 31, an inner kettle body 32, a connecting port 33, a connecting piece 34, a telescopic gap a3 and a hoop 35;
the device comprises a second condenser 4, a pressure gauge 5, a pressure transmitter 6, a safety valve 7, a rupture disk 8, an electromagnetic valve 9 and a fixed connection point c.
Detailed Description
The double-layer reaction kettle provided by the embodiment comprises: a sealing structure, an outer kettle 2 and an inner kettle 3; interior cauldron 3 is located inside outer cauldron 2, outer cauldron 2 is connected with atmospheric pressure regulating part, atmospheric pressure regulating part is through adjusting outer cauldron 2 internal pressure in order to adjust the interior outer atmospheric pressure difference of interior cauldron 3. In this way, in the present embodiment, the requirement of toughness of the inner tank 3 is reduced by the function of adjusting the air pressure inside the outer tank 2, so that the material of the inner tank 3 can be specifically selected according to the requirement of the reaction environment, for example, the inner tank 3 can be prepared from a corrosion-resistant material such as quartz glass, polytetrafluoroethylene, graphite, and corrosion-resistant alloy for a strong corrosive medium, and the outer tank 2 can be prepared from a material such as metal which is resistant to high temperature and high pressure as required. Therefore, in the embodiment, through the arrangement of the inner kettle 3 and the outer kettle 2, the separation of the performance materials of the reaction kettle is realized, a more flexible material selection space is provided for the manufacture of the reaction kettle, the reduction of the production cost is facilitated, and the safety and the service life of the reaction environment are ensured.
The sealing structure 1 is arranged outside the outer kettle 2, and the sealing structure 1 is connected and communicated with the inner kettle 3. The inner kettle 3 is communicated with an output pipe outside the outer kettle 2 through a sealing structure 1. So, through seal structure 1, realized the isolation of corrosive medium and pressure-bearing component, and a connection problem such as admit air, give vent to anger, temperature measurement has been solved to a department interface to realized sealed, can prevent that strong corrosive medium from entering into outer cauldron 2, guarantee outer cauldron 2's safe in utilization.
The details of each part will be described below.
Sealing structure
The sealing structure provided by the embodiment includes: an inner liner portion 11 and a mounting portion 12; the lining part 11 is arranged inside the mounting part 12; the lining part 11 is a hollow structure and is used for communicating the medium conveying pipe with a container for providing a medium reaction environment, and the container is the inner kettle 3.
A gap is provided between the liner portion 11 and the mounting portion 12 and an air pressure adjusting space for equalizing the internal and external pressures of the liner portion 11 is formed. In this way, in the present embodiment, the inner liner portion 11 is in contact with the medium, and the air pressure inside and outside the inner liner portion 11 is balanced by the air pressure adjusting space, so that the inner liner portion 11 is prevented from being deformed or burst due to an excessive difference in the inside and outside pressures.
In the present embodiment, the air pressure adjusting space is composed of a first space a1 surrounding the outer periphery of the liner part 11 and a second space a2 communicating with the first space a1 and located at the top of the liner part 11; the first space a1 is filled with a heat transfer medium 15, and the lining portion 11 has corrosion resistance and thermal conductivity. So, the inside high temperature of inside lining portion 11 passes through heat-conducting medium 15 and outwards transmits, and then has both realized the isolation to strong corrosive medium through this double-deck heat transfer structure, has realized cooling, the condensation to the high temperature steam in inside lining portion 11 again, reduces corrosive medium under the cooperation of second condenser to intake pipe 16 and outlet duct 17's corruption, guarantees equipment safety.
In the present embodiment, the mounting portion 12 includes a collar portion 121 and a cover 122; the ring sleeve part 121 is sleeved on the periphery of the inner lining part 11 and fixedly connected with the inner lining part, and a first space a1 is formed by a gap between the ring sleeve part and the inner lining part; the cover 122 is arranged on the ring sleeve part 121; the cover 122, the lining portion 11 and the ring portion 121 cooperate to form a second space a2, and the second space a2 is located above the lining portion 11. So, atmospheric pressure regulation space and outlet duct 17 intercommunication to realize atmospheric pressure regulation space and the inside intercommunication of interior cauldron 2, no matter how the reaction of the medium is in the cauldron, can realize the automatic balance of inside pressure and external pressure of inside lining portion. The requirement of the lining part 11 on the toughness is reduced, so that the material selection space of the lining part 11 is more flexible. For example, when the medium needs a reaction environment resistant to high temperature, high pressure and corrosion, the inner kettle 3 and the lining part 11 only need to realize high temperature and corrosion resistance in this embodiment; the outer kettle 2 and the mounting part 12 realize high temperature resistance and high pressure resistance. So for the material selection space of interior cauldron 3, inside lining portion 11, outer cauldron 2, installation department 12 is abundanter, and the restriction is still less, is favorable to reducing the material selection cost, and provides more safe and stable's medium reaction environment. For example, in the present embodiment, the inner vessel 3 and the lining portion 11 may be made of quartz glass, polytetrafluoroethylene, corrosion-resistant alloy, or the like, which is resistant to high temperature and corrosion; the outer vessel 2 and the mounting portion 12 may be made of a high-temperature-resistant high-strength metal material.
In this embodiment, a transition connection pipe 18 is disposed between the lining portion 11 and the cover body 122, the cover body 122 is provided with delivery pipes corresponding to the transition connection pipes 18 one by one, and each delivery pipe is communicated with the inside of the lining portion 111 through the corresponding transition connection pipe 18; and at least one conveying pipe is internally provided with a temperature measuring component which is inserted into the lining part 11 through a corresponding transition connecting pipe 18.
The liner portion 11 is composed of an inner tube 111 with two ends penetrating and a cap 112 arranged at the upper end of the inner tube 111, and the transition connecting tube 18 is arranged between the cap 112 and the cover body 122; the number of the transition connecting pipes 18 is not less than 2, and two conveying pipes are arranged outside the cover body 122 and are respectively used as an air inlet pipe 16 and an air outlet pipe 17; the cap 112 is further provided with an air duct 19 for inserting into the container, the air duct 19 is communicated with the air inlet pipe 16 through one of the transition connecting pipes 18, the temperature measuring part 13 is arranged in the air outlet pipe 17, and the air outlet pipe 17 is further communicated with the second space a 2.
Specifically, in the present embodiment, a vent hole is provided at the top of the lining portion 11, and a conveying pipe and a vent hole are provided on the cover body 122; the temperature measuring member provided in the conveying pipe is inserted into the lining portion 11 through the corresponding vent hole. In the embodiment, the arrangement of the vent hole and the conveying pipe facilitates the medium conveying of the inner kettle 3. In this embodiment, the number of vent holes can be set according to the operation requirement. Meanwhile, the temperature measuring component 13 is arranged in the conveying pipe, so that a vent hole is prevented from being formed in the temperature measuring component 13, the sealing performance of the lining part 11 and the inner kettle 3 is ensured, and the processing technology is simplified.
Two vent holes are arranged on the cover cap 112 and respectively used as an air inlet hole and an air outlet hole, and a first through hole corresponding to the position of the air inlet hole and a second through hole corresponding to the position of the air outlet hole are arranged on the cover body 122; the first through hole is communicated with the air inlet pipe 16, and the second through hole is communicated with the air outlet pipe 17; the air inlet hole and the first through hole are communicated through a transition connecting pipe 18, two ends of which are respectively fixedly connected with the cover body 122 and the cap 112, and the air outlet hole and the second through hole are communicated through another transition connecting pipe 18, two ends of which are respectively fixedly connected with the cover body 122 and the cap 112. Specifically, the transition connection tube 18 is fixedly connected to the cover 122 and the cap 112 by a threaded connection or a welding connection.
In this embodiment, the temperature measuring component 13 is disposed in the outlet pipe 17, and a sleeve is disposed on the outer periphery of the temperature measuring component 13 to prevent the temperature measuring component 13 from being corroded by the medium in the inner kettle 3.
In this embodiment, the inner tube 111 is welded to the ring portion 121 to form the bottom sealed first space a1, i.e. the fixed connection point C includes but is not limited to a welding point.
In this embodiment, the air inlet and the air outlet of the inner kettle 3 are both concentrated on the sealing structure, the sealing requirements of air inlet, air outlet and temperature measurement of the inner kettle 3 are simultaneously realized through one sealing structure, the isolation of the inner kettle 3 and the outer kettle 2 is favorably ensured, and the absolute sealing of a reaction medium in the inner kettle 3 is ensured.
The cap 112 is also provided with an air duct 19 which is communicated with the air inlet and is inserted into the container, namely the inner kettle 3. Thus, the air inlet pipe 16 inputs the medium into the bottom of the inner kettle 3.
In this embodiment, the mounting portion 12 further includes a locking portion 123 for connecting the cover 122 and the ring sleeve 121, the locking portion 123 is rotatably connected to the ring sleeve 121, the locking portion 123 has an internal thread, the lower portion of the cover 122 has an external thread, and the locking portion 123 is rotatably connected to the cover 122 by the thread. Thus, the cover 122 and the ring sleeve 121 can be easily detached.
In this embodiment, the water cooling part is disposed on the outer periphery of the ring sleeve 121, the water cooling part 14 is composed of a shell 141 and a heat dissipation fin 142, the shell 141 is connected with the ring sleeve 121 and cooperates with the ring sleeve 121 to form a water storage cavity, and the heat dissipation fin 142 is disposed on the ring sleeve 121 and located in the water storage cavity. The shell 141 is further provided with an input port and an output port so as to be connected with an external water delivery pipe through the input port and the output port, so that water flow in the water storage cavity is replaced, and temperature adjustment of the ring sleeve part 121 is guaranteed.
Outer kettle
The outer kettle 2 is connected with an air pressure adjusting part for adjusting the internal pressure intensity thereof so as to balance the internal and external pressure difference of the inner kettle 3. Specifically, the air pressure adjusting part comprises a pressurization gas input pipe 23 and a pressurization gas output pipe 24 which are connected with the outer kettle cover 21, the pressurization gas input pipe 23 is used for inputting pressurization gas into the outer kettle 2, and the pressurization gas output pipe 24 is used for discharging the pressurization gas in the outer kettle 2 so as to adjust the pressure in the outer kettle 2.
The pressurized gas output pipe 24 is further provided with a first condenser 22 so as to cool and condense the pressurized gas discharged through the pressurized gas output pipe 24 and avoid the medium in the outer kettle 2 from being brought out.
Inner kettle
The inner kettle 3 is arranged inside the outer kettle 2, and the inner kettle 3 is used for providing a medium reaction environment; the inner lining part 11 is connected and communicated with the inner kettle 3.
A connecting port 33 is arranged on the inner kettle 3, a connecting piece 34 which is fixedly connected with the outer periphery of the connecting port 33 is sleeved, and the ring sleeve part 121 and the connecting piece 34 are both connected with the outer kettle cover 21; the lining part 11 is inserted into the connecting port 33 to realize the communication between the lining part 11 and the inner kettle 3, and a telescopic gap a3 is arranged between the end faces of the lining part 11 and the connecting port 33 which are perpendicular to the inserting direction and opposite to each other. In this manner, water vapor generated by the reaction occurring in inner pot 3 can enter liner portion 11 and the seal at the contact position of connection port 33 through one of these expansion slits a 3. Specifically, in the present embodiment, the contact surface between the liner portion 11 and the connection port 33 is a smooth surface contact type or a frosted surface contact type.
Specifically, in this embodiment, the upper and lower surfaces of the outer kettle cover 21 are respectively provided with a first counter bore 221 and a second counter bore 222, and the first counter bore 221 and the second counter bore 222 are corresponding in position and are communicated with each other; the first counter bore 221 and the second counter bore 222 are both cylindrical holes and are both provided with internal threads; the ring sleeve portion 121 and the connecting member 34 are made of metal members, the ring sleeve portion 121 is inserted into the first counterbore 221 and is screwed, and the connecting member 34 is inserted into the second counterbore 222 and is screwed. Meanwhile, the inner part 11 extends out of the ring housing part 121 from below, and the connection port 33 extends out of the connection member 34 from above, so that the inner part 11 and the connection port 33 can be conveniently inserted. The lining part 11 and the inner kettle 3 are made of corrosion-resistant materials, the ring sleeve part 121 and the lining part 11 are fixedly connected, for example, welded, and the connecting part 34 and the inner kettle 3 are fixedly connected.
Specifically, in this embodiment, the second condenser 4 is disposed on both the inlet pipe 16 and the outlet pipe 17, so as to perform secondary condensation on the input and output media of the inner kettle 3, and prevent the outlet pipe 17 and the ring sleeve 121 from being corroded by the strong corrosive media. Simultaneously, intake pipe 16 and pressurized gas input tube 23 still all are connected with: manometer 5, pressure transmitter 6, relief valve 7 and rupture disk 8 to the realization is to the detection and the protection of the atmospheric pressure environment of interior cauldron 3 and outer cauldron 2. Meanwhile, the air inlet pipe 16 and the pressurized air input pipe 23 are both provided with electromagnetic valves 9 to control the on-off of the air path.
In this embodiment, the inner kettle 3 is composed of an inner kettle cover 31 and an inner kettle body 32, and the connection port 33 and the inner kettle cover 31 are integrally formed; the inner kettle cover 31 and the inner kettle body 32 are in conical surface contact and are connected and locked through a clamp 35.
When the double-layer reaction kettle in the embodiment is assembled, the sealing structure 1 is assembled firstly, and then the sealing structure 1 is connected with the outer kettle cover 21; then connecting the inner kettle 3 with an outer kettle cover 21; and finally, assembling the outer kettle cover 21 and the outer kettle body. In this embodiment, when cleaning the inner kettle 3, the sealing structure 1, the outer kettle cover 21 and the inner kettle cover 31 do not need to be disassembled, and the inner kettle cover 31 and the inner kettle body 32 are disassembled after the outer kettle cover 21 and the outer kettle body are separated, so that the operation is simple and rapid.
In the embodiment, the air outlet pipe 17 and the pressurized air output pipe 24 can be communicated through a balance valve a, so that the air pressure in the inner kettle 3 and the air pressure in the outer kettle 2 can be automatically balanced under the condition that the valve a is communicated; when the medium in the inner kettle 3 can not circulate with the outer kettle 2, the separation of the inner kettle 3 and the outer kettle 2 can be realized through the balance valve a, and the air pressure of the inner kettle 3 and the outer kettle 2 is independently adjusted to realize air pressure balance.
The invention is not to be considered as limited to the specific embodiments shown and described, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A corrosion resistant sealing structure, comprising: a lining part (11) and a mounting part (12); the lining part (11) is arranged inside the mounting part (12); the lining part (11) is of a hollow structure and is used for communicating a medium conveying pipe with a container for providing a medium reaction environment;
a gap is formed between the lining part (11) and the mounting part (12) and an air pressure adjusting space is formed and used for balancing the internal pressure and the external pressure of the lining part (11).
2. The corrosion-resistant sealing structure according to claim 1, wherein said air pressure adjusting space is composed of a first space (a1) surrounding the outer periphery of the lining portion (11) and a second space (a2) communicating with the first space (a1) and located at the top of the lining portion (11); the first space (a1) is filled with a heat transfer medium (15), and the liner section (11) has thermal conductivity.
3. The corrosion resistant sealing structure of claim 2, wherein the mounting portion (12) includes a collar portion (121) and a cover body (122); the ring sleeve part (121) is sleeved on the periphery of the inner lining part (11) and fixedly connected with the inner lining part, and a first space (a1) is formed by a gap between the ring sleeve part and the inner lining part; the cover body (122) is arranged on the ring sleeve part (121); the cover (122), the lining (11) and the loop (121) cooperate with each other to form a second space (a 2).
4. The corrosion-resistant sealing structure according to claim 3, wherein a transition connecting pipe (18) is arranged between the lining portion (11) and the cover body (122), the cover body (122) is provided with conveying pipes corresponding to the transition connecting pipes (18) one by one, and each conveying pipe is communicated with the inside of the lining portion (111) through the corresponding transition connecting pipe (18); and a temperature measuring component inserted into the inner lining part (11) through a corresponding transition connecting pipe (18) is arranged in at least one conveying pipe.
5. The corrosion-resistant sealing structure according to claim 4, wherein the lining portion (11) is composed of an inner tube (111) with both ends penetrating and a cap (112) disposed at the upper end of the inner tube (111), and the transition connecting tube (18) is disposed between the cap (112) and the cover body (122); two conveying pipes are arranged outside the cover body (122) and are respectively used as an air inlet pipe (16) and an air outlet pipe (17); the cover cap (112) is further provided with an air guide tube (19) used for being inserted into the container, the air guide tube (19) is communicated with the air inlet tube (16) through one transition connecting tube (18), the temperature measuring part (13) is arranged in the air outlet tube (17), and the air outlet tube (17) is further communicated with the second space (a 2).
6. The corrosion resistant sealing structure of claim 3, wherein the mounting portion (12) further comprises a locking portion (123) for connecting the cover (122) and the collar portion (121), the locking portion (123) is rotatably connected to the collar portion (121), the locking portion (123) is provided with an internal thread, the cover (122) is provided with an external thread at a lower portion thereof, and the locking portion (123) and the cover (122) are rotatably connected by the thread.
7. The corrosion-resistant sealing structure according to claim 3, wherein the collar portion (121) is provided at an outer periphery thereof with a water cooling member, the water cooling member (14) is composed of a housing (141) and heat dissipating fins (142), the housing (141) is connected to the collar portion (121) and forms a water storage chamber in cooperation with the collar portion (121), and the heat dissipating fins (142) are provided on the collar portion (121) and located in the water storage chamber.
8. A double-layer reaction kettle, characterized by comprising a sealing structure according to any one of claims 1 to 7, and further comprising an outer kettle (2) and an inner kettle (3); the inner kettle (3) is arranged inside the outer kettle (2), and the inner kettle (3) is used for providing a medium reaction environment; the outer kettle (2) is connected with an air pressure adjusting part for adjusting the internal pressure intensity thereof so as to balance the internal and external pressure difference of the inner kettle (3);
outer cauldron (2) are including the outer cauldron body and outer kettle cover (21) of mutually supporting, seal structure (1) sets up the one side that deviates from the outer cauldron body in outer kettle cover (21), interior lining portion (11) are connected and are communicate with interior cauldron (3).
9. The double-layer reaction kettle according to claim 8, wherein a connecting port (33) is arranged on the inner kettle (3), a connecting piece (34) fixedly connected with the outer periphery of the connecting port (33) is sleeved on the outer periphery of the connecting port, and the ring sleeve part (121) and the connecting piece (34) are both connected with the outer kettle cover (21); the inner lining part (11) is inserted into the connecting port (33), and a telescopic gap (a3) is arranged between the end surfaces which are perpendicular to the inserting direction and opposite to each other.
10. The double-layer reaction kettle according to claim 9, wherein the upper surface and the lower surface of the outer kettle cover (21) are respectively provided with a first counter bore (221) and a second counter bore (222), and the first counter bore (221) and the second counter bore (222) are correspondingly positioned and communicated with each other; the first counter bore (221) and the second counter bore (222) are both cylindrical holes and are both provided with internal threads; the ring sleeve part (121) and the connecting piece (34) are both made of metal pieces, the ring sleeve part (121) is inserted into the first counter bore (221) and is in threaded connection, and the connecting piece (34) is inserted into the second counter bore (222) and is in threaded connection; the inner lining part (11) and the inner kettle (3) are made of corrosion-resistant materials, the ring sleeve part (121) is fixedly connected with the inner lining part (11), and the connecting piece (34) is fixedly connected with the inner kettle (3); the inner lining part (11) extends out of the ring sleeve part (121) from the lower part, and the connecting port (33) extends out of the connecting piece (34) from the upper part; the air pressure adjusting part comprises a pressurized air input pipe (23) and a pressurized air output pipe (24) which are connected with the outer kettle cover (21); the air outlet pipe (17) is communicated with the pressurized air output pipe (24) through a balance valve (a).
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| CN202110555474.2A CN113368781B (en) | 2021-05-21 | 2021-05-21 | Corrosion-resistant sealing structure and double-layer reaction kettle with same |
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| CN202110555474.2A CN113368781B (en) | 2021-05-21 | 2021-05-21 | Corrosion-resistant sealing structure and double-layer reaction kettle with same |
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| CN113368781A true CN113368781A (en) | 2021-09-10 |
| CN113368781B CN113368781B (en) | 2023-02-28 |
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| CN113368781B (en) | 2023-02-28 |
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