CN115400704A - Temperature and pressure reduction device for discharged materials and discharged material treatment system - Google Patents
Temperature and pressure reduction device for discharged materials and discharged material treatment system Download PDFInfo
- Publication number
- CN115400704A CN115400704A CN202210922852.0A CN202210922852A CN115400704A CN 115400704 A CN115400704 A CN 115400704A CN 202210922852 A CN202210922852 A CN 202210922852A CN 115400704 A CN115400704 A CN 115400704A
- Authority
- CN
- China
- Prior art keywords
- pressure
- cooling medium
- discharged
- pressure reducing
- pipe section
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- B01J19/0006—Controlling or regulating processes
-
- 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
- B01J19/0006—Controlling or regulating processes
- B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
-
- 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
- B01J2219/00103—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor in a heat exchanger separate from the reactor
-
- 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
- B01J2219/00162—Controlling or regulating processes controlling the pressure
-
- 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
- B01J2219/00245—Avoiding undesirable reactions or side-effects
- B01J2219/0027—Pressure relief
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention provides a temperature and pressure reducing device and a processing system for a discharged material, wherein the device comprises a pressure reducing piece, a cooling medium storage tank, a pressure guiding pipe and a cooling medium conveying pipe, wherein the pressure reducing piece is communicated with a device to be discharged and a gas-liquid separation tank; a cooling medium storage tank in which a cooling medium is stored; the pressure guide pipe is communicated with the first through hole and the cooling medium storage tank and used for conveying the high-temperature high-pressure discharge material to the cooling medium storage tank; and a cooling medium delivery pipe communicating the cooling medium storage tank and the second through hole, the cooling medium delivery pipe being configured to deliver the cooling medium to the pressure drop. The invention can quickly cool and reduce the pressure of the high-temperature and high-pressure discharged materials.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to a discharged material cooling and pressure reducing device and a discharged material processing system.
Background
In the reaction of high-energy-content materials (such as toluene oxidation reaction), abnormal working conditions sometimes occur, the materials need to be discharged, and the temperature and the pressure of the discharged materials are reduced to certain values and then discharged into a discharged post-treatment system, so that the excess temperature or the excess pressure of a discharged pipe section and the discharged post-treatment system are avoided.
For a discharge system with both too high discharge temperature and discharge pressure (for example, the discharge temperature is less than 250 ℃ and the discharge pressure is less than 7 barG), the discharge material is treated by the gas-liquid separation tank and then discharged to a discharge post-treatment system. However, for a discharge system with high discharge pressure and discharge temperature (the discharge temperature is not less than 250 ℃, and the discharge pressure is not less than 7 barG), the discharged materials cannot meet the treatment requirements of a discharge post-treatment system after being simply treated by a gas-liquid separation tank.
At present, common methods for treating high-temperature and high-pressure (the relief temperature is not less than 250 ℃ and the relief pressure is not less than 7 barG) relief materials are as follows: 1) For the high-temperature and high-pressure discharge materials without toxic and harmful substances, the materials are discharged at high altitude after gas-liquid separation; 2) The high-temperature high-pressure discharge material containing toxic and harmful substances is firstly quenched, and then is discharged to a post-treatment system after gas-liquid separation.
The inventor discovers that the existing method for treating the high-temperature high-pressure discharged material has the following defects in the process of realizing the invention: 1) The pressure of the high-temperature and high-pressure discharged materials cannot be reduced; 2) The method for treating the high-temperature and high-pressure discharged material containing toxic and harmful substances utilizes the sensible heat of the quenching agent to cool the discharged material, the heat exchange effect of the discharged material and the quenching agent is poor, and a large amount of quenching agent and a large-size quenching tank are needed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a discharged material cooling and pressure reducing device and a discharged material processing system, which are used for rapidly cooling and reducing the pressure of high-temperature and high-pressure discharged materials and improving the cooling and pressure reducing efficiency.
The technical scheme of the invention provides a temperature and pressure reduction device for discharged materials, which comprises a pressure reduction piece, a cooling medium storage tank, a pressure introduction pipe and a cooling medium conveying pipe,
the pressure reducing piece is communicated with equipment to be discharged and the gas-liquid separation tank, a first through hole is formed in one end, close to the equipment to be discharged, of the pressure reducing piece, a second through hole is formed in one end, close to the gas-liquid separation tank, of the pressure reducing piece, and the pressure reducing piece is used for reducing the pressure of high-temperature and high-pressure discharged materials in the equipment to be discharged;
a cooling medium storage tank in which a cooling medium is stored;
the pressure guiding pipe is communicated with the first through hole and the cooling medium storage tank and used for conveying the high-temperature and high-pressure discharge material to the cooling medium storage tank;
and a cooling medium delivery pipe communicating the cooling medium storage tank and the second through hole, the cooling medium delivery pipe being configured to deliver the cooling medium to the pressure drop member.
Further, the pressure reducing member comprises at least one set of first pressure reducing pipes, each set of the first pressure reducing pipes comprises a first high pressure pipe section and a second high pressure pipe section, the initial inner diameter of the first high pressure pipe section is smaller than the initial inner diameter of the second high pressure pipe section,
the first high-pressure pipe section is communicated with the equipment to be discharged and the second high-pressure pipe section, and one end, close to the equipment to be discharged, of the first high-pressure pipe section is provided with the first through hole;
and the second high-pressure pipe section is communicated with the first high-pressure pipe section and the gas-liquid separation tank, and one end, close to the gas-liquid separation tank, of the second high-pressure pipe section is provided with the second through hole.
Further, the first high-pressure pipe section is an inclined pipe section, and the second high-pressure pipe section is a straight pipe section.
Furthermore, the number of the first depressurization pipes is multiple, and the initial inner diameter of each first depressurization pipe gradually increases towards the gas-liquid separation tank.
Further, the pressure reduction element also comprises a connecting pipe section and a relief pipe section,
the connecting pipe section is communicated with the equipment to be discharged and the first high-pressure pipe section, and one end, close to the equipment to be discharged, of the connecting pipe section is provided with the first through hole;
and the discharge pipe section is communicated with the second high-pressure pipe section and the gas-liquid separation tank.
Further, the pressure reduction member comprises a second pressure reduction pipe, the second pressure reduction pipe is communicated with the equipment needing to be discharged and the gas-liquid separation tank, the inner diameter of the second pressure reduction pipe gradually increases towards the gas-liquid separation tank, the first through hole is formed in one end, close to the equipment needing to be discharged, of the second pressure reduction pipe, and the second through hole is formed in one end, close to the gas-liquid separation tank, of the second pressure reduction pipe.
Furthermore, a cooling medium distributor is arranged at one end, close to the second through hole, of the cooling medium conveying pipe, and a plurality of spray holes are formed in the cooling medium distributor.
Further, a filter is arranged at the bottom of the cooling medium storage tank.
Furthermore, a medium supplementing pipeline for communicating external cooling media is arranged on the cooling medium storage tank, and a stop valve is arranged on the medium supplementing pipeline.
The technical scheme of the invention also provides a discharged material processing system, which comprises equipment to be discharged, a discharger, the discharged material cooling and depressurizing device and a gas-liquid separation tank, wherein the equipment to be discharged, the discharger and the gas-liquid separation tank are sequentially arranged from the upstream end to the downstream end, and the depressurizing part of the discharged material cooling and depressurizing device is communicated with the downstream end of the discharger.
After adopting above-mentioned technical scheme, have following beneficial effect: when needing to let out equipment and releasing, carry out the rapid depressurization through the piece that steps down with most high temperature high pressure material of releasing, form high temperature low pressure material of releasing, the while is in the small part high temperature high pressure material of releasing passes through the pressure pipe entering coolant storage tank, under the high-pressure effect, pass through coolant duct with the coolant in the coolant storage tank and carry to the piece that steps down, make the high temperature low pressure material of releasing after the step down and coolant intensive mixing, utilize the heat absorption of coolant vaporization to carry out rapid cooling to high temperature low pressure material of releasing, the realization is carried out rapid cooling to high temperature high pressure material of releasing and is stepped down, efficiency and effect are stepped down in the cooling.
Drawings
The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:
fig. 1 is a schematic structural diagram of a bleed material handling system according to an embodiment of the present invention;
fig. 2 is an enlarged view of fig. 1 at a.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings.
It is easily understood that according to the technical solution of the present invention, those skilled in the art can substitute various structures and implementation manners without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as limiting or restricting the technical aspects of the present invention.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.
As shown in FIG. 1, the bleed material treatment system includes a secondary upstream endThe device 1, the discharger 2, the discharged material cooling and pressure reducing device and the gas-liquid separation tank 15 which are required to be discharged are sequentially arranged at the downstream end. Wherein, need equipment of releasing 1 can be reation kettle, carry out the high energetic material reaction wherein, treat that the operating mode is unusual, need release wherein material and prevent that need equipment of releasing 1 superpressure from breaking, before needing equipment of releasing 1 to release, confirm that needs equipment of releasing 1's the biggest liquid mass m that holds r And maximum relief pressure P v Thereby determining the maximum discharge amount w of the equipment 1 to be discharged in the discharging process max . The bleeder 2 is arranged at the downstream end of the device 1 to be discharged and is used for leading the high-temperature and high-pressure discharged material to enter the discharged material cooling and pressure reducing device after passing through the bleeder 2 and leading the discharging caliber D required by the bleeder 2 v Can be based on the maximum discharge amount w max And (4) calculating. Preferably, the bleeder 2 is a safety valve or rupture disc. The material cooling and pressure reducing device that discharges sets up the downstream end at bleeder 2, and mainly used carries out cooling and pressure reduction to the material that discharges and handles. The gas-liquid separation tank 15 is used for receiving the discharged material after being subjected to temperature and pressure reduction treatment by the discharged material temperature and pressure reduction device.
Wherein the temperature and pressure reduction device for the discharged material comprises a pressure reduction piece, a cooling medium storage tank 6, a pressure introduction pipe 4 and a cooling medium conveying pipe 9,
the pressure reducing piece is communicated with the equipment 1 to be discharged and the gas-liquid separation tank 15, a first through hole is formed in one end, close to the equipment 1 to be discharged, of the pressure reducing piece, a second through hole is formed in one end, close to the gas-liquid separation tank 15, of the pressure reducing piece, and the pressure reducing piece is used for reducing the pressure of high-temperature and high-pressure discharged materials in the equipment 1 to be discharged;
a cooling medium storage tank 6 that stores a cooling medium 11;
the pressure guide pipe 4 is communicated with the first through hole and the cooling medium storage tank 6, and the pressure guide pipe 4 is used for conveying the high-temperature and high-pressure discharged material to the cooling medium storage tank 6;
and the cooling medium conveying pipe 9 is communicated with the cooling medium storage tank 6 and the second through hole, and the cooling medium conveying pipe 9 is used for conveying the cooling medium 11 to the pressure reduction part.
The upper reaches end intercommunication of pressure reduction piece needs relief apparatus 1, the low reaches end intercommunication gas-liquid separation jar 15 of pressure reduction piece, the upper reaches end of pressure reduction piece is close to and needs relief apparatus 1's junction to be equipped with first through-hole, the low reaches end of pressure reduction piece is close to and is equipped with the second through-hole with gas-liquid separation jar 15's junction, the pressure reduction piece is used for stepping down the high temperature high pressure material of releasing in the equipment 1 that needs, for example, the pressure with the high temperature high pressure material of releasing reduces to being less than 7barG. Preferably, the outlet pressure of the pressure reduction element is calculated using the following method:
P r ＝7barG×(1-3％)-ΔP-ρgh
wherein, P r Is the outlet pressure of the pressure reduction element; Δ P is a pressure drop of the cooling medium flowing through the cooling medium delivery pipe; rho is the mass density of the cooling medium at the storage temperature; h is the vertical height from the lowest point of the cooling medium storage tank to the center point of the connecting pipe section.
The cooling medium storage tank 6 stores a cooling medium 11, the cooling medium 11 is nontoxic and harmless, has large latent heat of vaporization, and is compatible with high-temperature and high-pressure discharge materials, and preferably, the cooling medium 11 is desalted water. Before the tapping device 1 is tapped, the storage capacity of the coolant storage tank 6 can be determined by the following method:
wherein m is q The storage capacity of the cooling medium storage tank; m is r The maximum liquid holding mass of the equipment needing to be discharged; c pr The specific heat capacity of the high-temperature high-pressure discharged material; t is r，max Is the maximum bleed temperature; t is Bq For the outlet pressure P of the cooling medium at the pressure drop r The lower corresponding boiling point; c pq Is the specific heat capacity of the cooling medium; t is qi Is the initial temperature of the cooling medium; Δ H vq Is the latent heat of vaporization of the cooling medium. Preferably, the filling rate of the cooling medium in the cooling medium storage tank 6 is 85% -90%.
The pressure guiding pipe 4 is a high-temperature and high-pressure resistant pipe section, the upstream end of the pressure guiding pipe 4 is communicated with the first through hole, the downstream end of the pressure guiding pipe 4 is communicated with the top of the cooling medium storage tank 6, the pressure guiding pipe 4 is used for conveying part of high-temperature and high-pressure discharge materials passing through the discharger 2 to the cooling medium storage tank 6, and the cooling medium 11 in the cooling medium storage tank 6 enters the pressure reduction part through the cooling medium conveying pipe 9. Preferably, the line pressure drop of the pressure introduction line 4 is not more than 3%.
The bottom of coolant holding vessel 6 is linked together to the upper reaches end of coolant conveyer pipe 9, and the downstream end of coolant conveyer pipe 9 runs through the second through-hole and steps down the piece intercommunication to in carrying coolant 11 to the step down piece, cool down through coolant 11 to the high temperature low pressure material of releasing through the step down piece. Preferably, the inner diameter of the cooling medium feed pipe 9 can be determined by the following method:
wherein D is q The inner diameter of the cooling medium conveying pipe; w is a max Is the maximum bleed amount of the bleeder; mu is the viscosity of the cooling medium at the storage temperature; l is q The length of the cooling medium delivery pipe.
In one embodiment, the pressure reducing member comprises at least one set of first pressure reducing lines, each set of first pressure reducing lines comprising a first high pressure pipe section 5 and a second high pressure pipe section 14, the first high pressure pipe section 5 having a starting inner diameter smaller than the starting inner diameter of the second high pressure pipe section 14,
the first high-pressure pipe section 5 is communicated with the equipment to be discharged 1 and the second high-pressure pipe section 14, and a first through hole is formed in one end, close to the equipment to be discharged 1, of the first high-pressure pipe section 5;
and the second high-pressure pipe section 14 is communicated with the first high-pressure pipe section 5 and the gas-liquid separation tank 15, and one end, close to the gas-liquid separation tank 15, of the second high-pressure pipe section 14 is provided with a second through hole.
The pressure reducing member comprises at least one set of first pressure reducing pipes, each set of first pressure reducing pipes comprising a first high pressure pipe section 5 and a second high pressure pipe section 14. The upstream end of the first high-pressure pipe section 5 is communicated with the equipment 1 to be discharged, the downstream end of the first high-pressure pipe section 5 is communicated with the upstream end of the second high-pressure pipe section 14, and the downstream end of the second high-pressure pipe section 14 is communicated with the gas-liquid separation tank 15. The upstream end of the first high-pressure pipe section 5 is provided with a first through hole near the joint of the first high-pressure pipe section and the equipment 1 to be discharged, the end of the second high-pressure pipe section 14 near the gas-liquid separation tank 15 is provided with a second through hole, the first high-pressure pipe section 5 is a high-temperature and high-pressure resistant pipe section, and the second high-pressure pipe section 14 is a high-temperature and high-pressure resistant pipe section.
The initial inner diameter of the first high-pressure pipe section 5 is smaller than the initial inner diameter of the second high-pressure pipe section 14, the first high-pressure pipe section 5 and the second high-pressure pipe section 14 form an expanding pressure reduction pipe, so that high-temperature high-pressure discharge materials are subjected to blocking flow at an inlet of the first high-pressure pipe section 5, the pressure is rapidly reduced, and the high-temperature high-pressure discharge materials are changed into high-temperature low-pressure discharge materials after passing through the first high-pressure pipe section 5 and the second high-pressure pipe section 14.
Wherein the starting internal diameter refers to the internal diameter at the connection of the two components, for example the starting internal diameter of the first high pressure pipe section 5 refers to the internal diameter of the first high pressure pipe section 5 at the connection with the equipment to be discharged 1, and the starting internal diameter of the second high pressure pipe section 14 refers to the internal diameter of the second high pressure pipe section 14 at the connection with the first high pressure pipe section 5.
In one embodiment, the first high pressure tube section 5 is an inclined tube section and the second high pressure tube section 14 is a straight tube section.
In one embodiment, the number of the first pressure-reducing pipes is plural groups, and the volume of each group of the first pressure-reducing pipes is gradually increased toward the gas-liquid separation tank 15.
The number of the first pressure reducing pipes is multiple, the initial inner diameter of each group of the first pressure reducing pipes is gradually increased along the direction towards the gas-liquid separation tank 15, the pressure reducing pieces are expanded in a multi-stage mode, the pressure reducing pieces are used for rapidly reducing the pressure of high-temperature and high-pressure discharge materials in a multi-stage mode, and the working efficiency is improved. Preferably, the number of sets of the first pressure-reducing tubes satisfies the following condition:
wherein, P V The highest relief pressure of equipment needing relief; n is the number of groups of the first pressure reducing pipes.
In one embodiment, to facilitate connection of the apparatus 1 to be vented and the gas-liquid separation tank 15, the pressure reduction means further comprises a connecting pipe section 3 and a vent pipe section 13,
the connecting pipe section 3 is communicated with the equipment 1 to be discharged and the first high-pressure pipe section 5, and one end, close to the equipment 1 to be discharged, of the connecting pipe section 3 is provided with a first through hole;
and the discharge pipe section 13 is communicated with the second high-pressure pipe section 14 and the gas-liquid separation tank 15.
The connecting pipe section 3 is a high-temperature and high-pressure resistant pipe section, the upstream end of the connecting pipe section 3 is communicated with the equipment 1 to be discharged, the downstream end of the connecting pipe section 3 is communicated with the first high-pressure pipe section 5, and the upstream end of the connecting pipe section 3 is provided with a first through hole close to the joint of the equipment 1 to be discharged.
Preferably, the inner diameter of connecting pipe section 3 is equal to the discharge aperture of the device to be discharged, and the length of connecting pipe section 3 is 3-5 times of the inner diameter of connecting pipe section 3.
Preferably, the initial inner diameter of the connection pipe section 3 is smaller than the initial inner diameter of the first high-pressure pipe section 5, so that the connection pipe section 3 not only plays a role in connecting the device 1 to be discharged and the pressure reducing member, but also can perform primary pressure reduction on the high-temperature and high-pressure discharged materials, and the cost is reduced.
The discharge pipe section 13 is a low-temperature and low-pressure resistant pipe section, the upstream end of the discharge pipe section 13 is communicated with the second high-pressure pipe section 14, and the downstream end of the discharge pipe section 13 is communicated with the gas-liquid separation tank 15.
Preferably, the initial internal diameter of the bleed section 13 is equal to the terminal internal diameter of the second high pressure section 14 to facilitate connection of the pressure letdown member to the knock out pot 15.
In one embodiment, in order to reduce the pressure of the high-temperature and high-pressure discharge material, the pressure reducing member includes a second pressure reducing pipe, the second pressure reducing pipe is communicated with the device 1 to be discharged and the gas-liquid separation tank 15, the inner diameter of the second pressure reducing pipe gradually increases in the direction toward the gas-liquid separation tank 15, a first through hole is formed in one end, close to the device 1 to be discharged, of the second pressure reducing pipe, and a second through hole is formed in one end, close to the gas-liquid separation tank 15, of the second pressure reducing pipe.
In one embodiment, as shown in fig. 1 and 2, a cooling medium distributor 10 is provided at one end of the cooling medium delivery pipe 9 near the second through hole, and a plurality of spray holes 12 are provided on the cooling medium distributor 10.
Cooling medium conveyer pipe 9 is close to the end tail of second through-hole and is equipped with cooling medium distributor 10, is equipped with a plurality of orifices 12 on the cooling medium distributor 10, carries cooling medium 11 to the pressure-reducing part in with the droplet form through a plurality of orifices 12 in, makes the material of releasing and cooling medium intensive mixing, realizes rapid cooling.
Preferably, the plurality of spray holes 12 are evenly distributed on the cooling medium distributor 10.
Preferably, the total area of the plurality of nozzle holes 12 is equal to the sectional area of the cooling medium delivery pipe 9.
Preferably, the diameter of the orifice 12 is not greater than 1mm.
In one of the embodiments, the cooling medium storage tank 6 is provided with a filter 8 at its bottom.
The filter 8 is used to filter the cooling medium 11 stored in the cooling medium storage tank 6 and prevent impurities in the cooling medium 11 from clogging the cooling medium delivery pipe 9.
In one embodiment, in order to facilitate the supply of the cooling medium, the cooling medium storage tank 6 is provided with a medium supply line for communicating with the external cooling medium, and the medium supply line is provided with a stop valve 7.
The cooling medium storage tank 6 is provided with a medium replenishing pipe communicated with an external cooling medium so as to replenish the cooling medium storage tank 6 with the cooling medium 11. The medium supplementing pipeline is provided with a stop valve 7, and the stop valve 7 is used for controlling the opening and closing of the medium supplementing pipeline.
The working principle of the bleed material treatment system provided by the invention is explained below, specifically as follows:
when the high-energy-content material reacts in the equipment 1 to be discharged and the working condition is abnormal, the material needs to be discharged to avoid overpressure breakage of the equipment 1 to be discharged. As the pressure of the equipment 1 to be discharged reaches the opening pressure of the discharger 2, the discharger 2 is opened, most of high-temperature high-pressure discharged materials pass through the discharger 2 and then reach the interior of the pressure reduction part, and the pressure of the high-temperature high-pressure materials is rapidly reduced after the high-temperature high-pressure materials pass through the pressure reduction part, so that the high-temperature low-pressure discharged materials are formed. Meanwhile, a small part of high-temperature and high-pressure discharge material enters the cooling medium storage tank 6 through the pressure guide pipe 4, and under the action of high pressure, the cooling medium 11 stored in the cooling medium storage tank 6 is pumped into the pressure reduction part through the cooling medium conveying pipeline 9. The cooling medium 11 in the pressure reduction piece relies on the injection effect and the direct even contact heat transfer effect, and the heat absorption that vaporizes can take place for cooling medium 11, with the high temperature low pressure material homogeneous mixing of releasing through the pressure reduction piece to the realization is to the high temperature low pressure material rapid cooling of releasing, forms low temperature low pressure material of releasing. The low-temperature and low-pressure discharged materials after temperature and pressure reduction enter a gas-liquid separation tank 15 through a discharge pipe 13.
Through set up the material cooling pressure reduction means of releasing between equipment 1 and the gas-liquid separation jar 15 that need to release, can make the material processing system of releasing of this application can be applicable to the material highest temperature of releasing under the abnormal operating mode and be not less than 250 ℃, the safe operating mode of releasing that the pressure of releasing is not less than 7barG.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, and not to limit the same; although embodiments of the present invention have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A temperature and pressure reduction device for discharged materials is characterized by comprising a pressure reduction piece, a cooling medium storage tank, a pressure introduction pipe and a cooling medium conveying pipe,
the pressure reducing piece is communicated with equipment to be discharged and the gas-liquid separation tank, a first through hole is formed in one end, close to the equipment to be discharged, of the pressure reducing piece, a second through hole is formed in one end, close to the gas-liquid separation tank, of the pressure reducing piece, and the pressure reducing piece is used for reducing the pressure of high-temperature and high-pressure discharged materials in the equipment to be discharged;
a cooling medium storage tank in which a cooling medium is stored;
the pressure guiding pipe is communicated with the first through hole and the cooling medium storage tank and used for conveying the high-temperature and high-pressure discharge material to the cooling medium storage tank;
and a cooling medium delivery pipe communicating the cooling medium storage tank and the second through hole, the cooling medium delivery pipe being configured to deliver the cooling medium to the pressure drop.
2. The bleed material cooling and depressurizing device of claim 1 wherein the depressurization member comprises at least one set of first depressurization tubes, each set of first depressurization tubes comprising a first high pressure tube section and a second high pressure tube section, the first high pressure tube section having an initial inner diameter smaller than an initial inner diameter of the second high pressure tube section,
the first high-pressure pipe section is communicated with the equipment to be discharged and the second high-pressure pipe section, and one end, close to the equipment to be discharged, of the first high-pressure pipe section is provided with the first through hole;
and the second high-pressure pipe section is communicated with the first high-pressure pipe section and the gas-liquid separation tank, and one end, close to the gas-liquid separation tank, of the second high-pressure pipe section is provided with the second through hole.
3. The bleed material cooling and depressurizing device of claim 2 wherein the first high pressure tube section is an inclined tube section and the second high pressure tube section is a straight tube section.
4. The bleed material temperature and pressure reducing device according to claim 3, wherein the number of the first pressure reducing pipes is plural, and an initial inner diameter of each of the first pressure reducing pipes gradually increases toward the gas-liquid separation tank.
5. The blowdown material cooling and pressure reducing device of claim 4, wherein the pressure reducing member further comprises a connecting pipe section and a blowdown pipe section,
the connecting pipe section is communicated with the equipment to be discharged and the first high-pressure pipe section, and one end, close to the equipment to be discharged, of the connecting pipe section is provided with the first through hole;
and the discharge pipe section is communicated with the second high-pressure pipe section and the gas-liquid separation tank.
6. The temperature and pressure reducing device for the discharged material as claimed in claim 1, wherein the pressure reducing member includes a second pressure reducing pipe, the second pressure reducing pipe communicates the device to be discharged and the gas-liquid separation tank, an inner diameter of the second pressure reducing pipe gradually increases toward the gas-liquid separation tank, the first through hole is formed at one end of the second pressure reducing pipe close to the device to be discharged, and the second through hole is formed at one end of the second pressure reducing pipe close to the gas-liquid separation tank.
7. The discharged material cooling and pressure reducing device according to any one of claims 1 to 6, wherein a cooling medium distributor is provided at an end of the cooling medium conveying pipe close to the second through hole, and the cooling medium distributor is provided with a plurality of spray holes.
8. The discharged material cooling and depressurizing device of claim 7 wherein a filter is provided at the bottom of the cooling medium storage tank.
9. The bleed material temperature and pressure reducing device of claim 8, wherein the cooling medium storage tank is provided with a medium supplementing pipeline for communicating with an external cooling medium, and the medium supplementing pipeline is provided with a stop valve.
10. A discharged material processing system, which is characterized by comprising a device to be discharged, a discharger, the discharged material temperature and pressure reducing device as claimed in any one of claims 1 to 9, and a gas-liquid separation tank, which are arranged in sequence from an upstream end to a downstream end, wherein the pressure reducing piece of the discharged material temperature and pressure reducing device is communicated with the downstream end of the discharger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210922852.0A CN115400704A (en) | 2022-08-02 | 2022-08-02 | Temperature and pressure reduction device for discharged materials and discharged material treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210922852.0A CN115400704A (en) | 2022-08-02 | 2022-08-02 | Temperature and pressure reduction device for discharged materials and discharged material treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115400704A true CN115400704A (en) | 2022-11-29 |
Family
ID=84159114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210922852.0A Pending CN115400704A (en) | 2022-08-02 | 2022-08-02 | Temperature and pressure reduction device for discharged materials and discharged material treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115400704A (en) |
-
2022
- 2022-08-02 CN CN202210922852.0A patent/CN115400704A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8365812B2 (en) | Shell and tube heat exchanger | |
| CN100388958C (en) | Apparatus and method for removal of volatiles from a mass processable polymer | |
| CN101384407A (en) | An apparatus and method for degassing polymer powder | |
| JPH07224109A (en) | Method for removing residual monomer and residual monomer-removing column therefor | |
| CN115400704A (en) | Temperature and pressure reduction device for discharged materials and discharged material treatment system | |
| CN111690433B (en) | FCC feedstock liquid phase hydroprocessing system and method | |
| CN113304709B (en) | Devolatilization device and SAN resin devolatilization process | |
| US7682484B2 (en) | Apparatus and method for removing volatile components from viscous liquids | |
| CN109679684B (en) | Liquid phase hydrogenation reaction system and method | |
| CA2773896C (en) | An assembly for reducing slurry pressure in a slurry processing system | |
| CN214763480U (en) | Defoaming device and reaction system | |
| RU2195586C2 (en) | Multiple nozzle jet device | |
| CN105107448A (en) | Device for adding diluent and inhibitor rapidly and uniformly in case of stirring failure | |
| CN107032306B (en) | System and method for producing hydrogen peroxide by fluidized bed | |
| US9327261B2 (en) | Apparatus for decreasing SMR tube temperature | |
| CN111918884A (en) | Residual monomer removing device | |
| CN111069145A (en) | Take off interior flat plate heater cleaning system of ware | |
| WO2015056029A1 (en) | Apparatus for quenching | |
| WO2015084787A1 (en) | Method for decreasing smr tube temperature | |
| EP1713852A2 (en) | Additivising polymer powders | |
| CN216513699U (en) | Naphtha hydrotreating system | |
| CN221788259U (en) | N-vinyl pyrrolidone reaction liquid dynamic degassing device | |
| CN212998423U (en) | Stable and efficient urea evaporation system | |
| CN115400705A (en) | Device for cooling discharged material and discharged material processing system | |
| CN205275209U (en) | Sulfur melting steam condensate water heat exchange device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |