Discharge material cooling and pressure reduction device and discharge material processing system

Abstract

The present invention provides a device and a processing system for reducing the temperature and pressure of discharged materials, the device includes a pressure reducing component, a cooling medium storage tank, a pressure pipe and a cooling medium delivery pipe, the pressure reducing component is connected to the equipment to be discharged and the gas-liquid separation tank, the pressure reducing component is provided with a first through hole at one end close to the equipment to be discharged, and the pressure reducing component is provided with a second through hole at one end close to the gas-liquid separation tank, the pressure reducing component is used to reduce the pressure of the high-temperature and high-pressure discharged materials in the equipment to be discharged; the cooling medium storage tank stores cooling medium; the pressure pipe is connected to the first through hole and the cooling medium storage tank, the pressure pipe is used to transport the high-temperature and high-pressure discharged materials to the cooling medium storage tank; the cooling medium delivery pipe is connected to the cooling medium storage tank and the second through hole, the cooling medium delivery pipe is used to transport the cooling medium to the pressure reducing component. The present invention can quickly reduce the temperature and pressure of high-temperature and high-pressure discharged materials.

Description

Technical Field

[0001] The present invention relates to the technical field of chemical engineering, and in particular to a device for cooling and reducing the pressure of discharged materials and a system for processing discharged materials. Background Art

[0002] In the reaction of high-energy materials (such as toluene oxidation reaction), abnormal conditions sometimes occur and need to be discharged. The temperature and pressure of the discharged materials must be reduced to a certain value before they can be discharged into the post-discharge treatment system to avoid overheating or overpressure in the discharge pipe section and the post-discharge treatment system.

[0003] For a discharge system with a relatively low discharge temperature and discharge pressure (e.g., a discharge temperature less than 250°C and a discharge pressure less than 7 barG), the discharged material can be discharged to the discharge post-treatment system after being treated in a gas-liquid separation tank. However, for a discharge system with a relatively high discharge pressure and discharge temperature (a discharge temperature not less than 250°C and a discharge pressure not less than 7 barG), the discharged material cannot meet the treatment requirements of the discharge post-treatment system after being simply treated in a gas-liquid separation tank.

[0004] At present, the common methods for handling high-temperature and high-pressure (discharge temperature not less than 250°C, discharge pressure not less than 7barG) discharge materials are: 1) For high-temperature and high-pressure discharge materials that do not contain toxic and harmful substances, they are discharged into the air after gas-liquid separation; 2) For high-temperature and high-pressure discharge materials that contain toxic and harmful substances, they are first quenched and then discharged to the post-treatment system after gas-liquid separation.

[0005] In the process of realizing the invention, the inventors found that the existing methods for treating high-temperature and high-pressure discharge materials have the following defects: 1) It is impossible to reduce the pressure of high-temperature and high-pressure discharge materials; 2) For the treatment method of high-temperature and high-pressure discharge materials containing toxic and harmful substances, the sensible heat of the quenching agent is used to cool the discharge material, and the heat exchange effect between the discharge material and the quenching agent is poor and a large amount of quenching agent and a large-volume quenching tank are required. Summary of the invention

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a device for cooling and depressurizing discharged materials and a system for treating discharged materials, so as to achieve rapid cooling and depressurization of high-temperature and high-pressure discharged materials and improve the cooling and depressurization efficiency.

[0007] The technical solution of the present invention provides a device for reducing temperature and pressure of discharged materials, including a pressure reducing component, a cooling medium storage tank, a pressure-inducing pipe and a cooling medium delivery pipe.

[0008] A pressure reducing member is connected to the device to be discharged and the gas-liquid separation tank, wherein one end of the pressure reducing member close to the device to be discharged is provided with a first through hole, and one end of the pressure reducing member close to the gas-liquid separation tank is provided with a second through hole, and the pressure reducing member is used to reduce the pressure of the high-temperature and high-pressure discharge material in the device to be discharged;

[0009] A cooling medium storage tank storing a cooling medium;

[0010] A pressure-inducing pipe, connected with the first through hole and the cooling medium storage tank, and the pressure-inducing pipe is used to transport the high-temperature and high-pressure discharge material to the cooling medium storage tank;

[0011] A cooling medium delivery pipe is connected to the cooling medium storage tank and the second through hole, and the cooling medium delivery pipe is used to deliver the cooling medium to the pressure reducing member.

[0012] Further, the pressure reducing member includes at least one group of first pressure reducing pipes, each group of the first pressure reducing pipes includes a first high-pressure pipe section and a second high-pressure pipe section, and the starting inner diameter of the first high-pressure pipe section is smaller than the starting inner diameter of the second high-pressure pipe section.

[0013] A first high-pressure pipe section is connected to the device to be discharged and the second high-pressure pipe section, and the first through hole is provided at one end of the first high-pressure pipe section close to the device to be discharged;

[0014] The second high-pressure pipe section is connected with the first high-pressure pipe section and the gas-liquid separation tank, and the second through hole is provided at one end of the second high-pressure pipe section close to the gas-liquid separation tank.

[0015] Furthermore, the first high-pressure pipe section is an inclined pipe section, and the second high-pressure pipe section is a straight pipe section.

[0016] Furthermore, the number of the first pressure-reducing tubes is multiple groups, and the starting inner diameter of each group of the first pressure-reducing tubes gradually increases in the direction toward the gas-liquid separation tank.

[0017] Furthermore, the pressure reducing member also includes a connecting pipe section and a discharge pipe section.

[0018] A connecting pipe section, connecting the device to be discharged and the first high-pressure pipe section, wherein the first through hole is provided at one end of the connecting pipe section close to the device to be discharged;

[0019] The discharge pipe section is connected with the second high-pressure pipe section and the gas-liquid separation tank.

[0020] Furthermore, the pressure reducing component includes a second pressure reducing pipe, which connects the equipment to be discharged and the gas-liquid separation tank, and the inner diameter of the second pressure reducing pipe gradually increases in the direction toward the gas-liquid separation tank. The first through hole is provided at one end of the second pressure reducing pipe close to the equipment to be discharged, and the second through hole is provided at one end of the second pressure reducing pipe close to the gas-liquid separation tank.

[0021] Furthermore, a cooling medium distributor is provided at one end of the cooling medium delivery pipe close to the second through hole, and a plurality of spray holes are provided on the cooling medium distributor.

[0022] Furthermore, a filter is provided at the bottom of the cooling medium storage tank.

[0023] Furthermore, the cooling medium storage tank is provided with a medium replenishing pipeline for communicating with external cooling medium, and a stop valve is provided on the medium replenishing pipeline.

[0024] The technical solution of the present invention also provides a discharged material processing system, comprising a discharge device, a discharger, a discharged material cooling and pressure reducing device as described above, and a gas-liquid separation tank, which are arranged in sequence from the upstream end to the downstream end, and the pressure reducing component of the discharged material cooling and pressure reducing device is connected to the downstream end of the discharger.

[0025] The adoption of the above technical scheme has the following beneficial effects: when the equipment to be discharged is discharged, most of the high-temperature and high-pressure discharged materials are quickly depressurized through the pressure reducing component to form high-temperature and low-pressure discharged materials. At the same time, a small part of the high-temperature and high-pressure discharged materials enters the cooling medium storage tank through the pressure-inducing pipe. Under the action of high pressure, the cooling medium in the cooling medium storage tank is transported to the pressure reducing component through the cooling medium transport pipe, so that the high-temperature and low-pressure discharged materials after depressurization are fully mixed with the cooling medium, and the high-temperature and low-pressure discharged materials are quickly cooled down by evaporation heat of the cooling medium, so as to achieve rapid cooling and pressure reduction of the high-temperature and high-pressure discharged materials, thereby improving the cooling and pressure reduction efficiency and effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The disclosure of the present invention will become more easily understood with reference to the accompanying drawings. It should be understood that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. In the drawings:

[0027] Figure 1 A schematic diagram of the structure of a discharged material processing system provided in one embodiment of the present invention;

[0028] Figure 2 for Figure 1 Enlarged view of point A. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0030] It is easy to understand that according to the technical solution of the present invention, without changing the essential spirit of the present invention, a variety of structural modes and implementation modes that can be replaced by those skilled in the art can be replaced with each other. Therefore, the following specific implementation modes and drawings are only exemplary descriptions of the technical solution of the present invention, and should not be regarded as the whole of the present invention or as a limitation or restriction to the technical solution of the invention.

[0031] The directional terms such as up, down, left, right, front, back, front, back, top, bottom, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0032] like Figure 1 As shown, the material discharge processing system includes a discharge device 1, a discharger 2, a discharge material cooling and pressure reduction device, and a gas-liquid separation tank 15, which are arranged in sequence from the upstream end to the downstream end. The discharge device 1 can be a reactor in which high-energy materials react. When an abnormal operating condition occurs, the material in the reactor needs to be discharged to prevent the discharge device 1 from overpressure rupture. Before the discharge device 1 is discharged, the maximum liquid holding mass m of the discharge device 1 is determined. r and maximum discharge pressure P v , so that the maximum discharge volume w of the device 1 to be discharged during the discharge process can be determined max The discharger 2 is arranged at the downstream end of the equipment 1 to be discharged, and is used to allow the high-temperature and high-pressure discharged materials to pass through the discharger 2 and enter the discharged material cooling and pressure reduction device. The discharge port diameter D required by the discharger 2 is v According to the maximum discharge volume w max Calculated. Preferably, the discharger 2 is a safety valve or a rupture disc. The discharge material cooling and pressure reduction device is arranged at the downstream end of the discharger 2, and is mainly used to cool and pressure the discharge material. The gas-liquid separation tank 15 is used to receive the discharge material after the discharge material cooling and pressure reduction device has been used for cooling and pressure reduction.

[0033] The device for reducing temperature and pressure of discharged materials includes a pressure reducing component, a cooling medium storage tank 6, a pressure-inducing pipe 4 and a cooling medium delivery pipe 9.

[0034] A pressure reducing member is connected to the device to be discharged 1 and the gas-liquid separation tank 15. The pressure reducing member is provided with a first through hole at one end close to the device to be discharged 1, and a second through hole at one end close to the gas-liquid separation tank 15. The pressure reducing member is used to reduce the pressure of the high-temperature and high-pressure discharge material in the device to be discharged 1;

[0035] A cooling medium storage tank 6 storing a cooling medium 11;

[0036] A pressure-inducing pipe 4 is connected to the first through hole and the cooling medium storage tank 6, and the pressure-inducing pipe 4 is used to transport the high-temperature and high-pressure discharge material to the cooling medium storage tank 6;

[0037] The cooling medium delivery pipe 9 is connected to the cooling medium storage tank 6 and the second through hole. The cooling medium delivery pipe 9 is used to deliver the cooling medium 11 to the pressure reducing component.

[0038] The upstream end of the pressure reducing component is connected to the device to be discharged 1, and the downstream end of the pressure reducing component is connected to the gas-liquid separation tank 15. The upstream end of the pressure reducing component is provided with a first through hole near the connection with the device to be discharged 1, and the downstream end of the pressure reducing component is provided with a second through hole near the connection with the gas-liquid separation tank 15. The pressure reducing component is used to reduce the pressure of the high-temperature and high-pressure discharge material in the device to be discharged 1, for example, to reduce the pressure of the high-temperature and high-pressure discharge material to less than 7 barG. Preferably, the outlet pressure of the pressure reducing component is calculated by the following method:

[0039] P r =7barG×(1-3%)-ΔP-ρgh

[0040] Among them, P r is the outlet pressure of the pressure reducing component; ΔP is the pressure drop of the cooling medium flowing through the cooling medium delivery pipe; ρ 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.

[0041] The cooling medium storage tank 6 stores a cooling medium 11, which is non-toxic and harmless, has a large latent heat of vaporization, and is compatible with high-temperature and high-pressure discharge materials. Preferably, the cooling medium 11 is desalted water. Before the discharge equipment 1 is discharged, the storage capacity of the cooling medium storage tank 6 can be determined by the following method:

[0042]

[0043] Among them, m q is the storage capacity of the cooling medium storage tank; m r C is the maximum liquid holding mass of the equipment to be discharged; pr is the specific heat capacity of high temperature and high pressure discharge material; T r，max is the maximum discharge temperature; T Bq The outlet pressure P of the cooling medium at the pressure reducing part r The corresponding boiling point is C pq is the specific heat capacity of the cooling medium; T qi is the initial temperature of the cooling medium; ΔH vq Preferably, the filling rate of the cooling medium in the cooling medium storage tank 6 is 85%-90%.

[0044] The pressure-inducing pipe 4 is a high-temperature and high-pressure resistant pipe section, the upstream end of the pressure-inducing pipe 4 is connected to the first through hole, and the downstream end of the pressure-inducing pipe 4 is connected to the top of the cooling medium storage tank 6. The pressure-inducing pipe 4 is used to transport part of the high-temperature and high-pressure discharged material passing through the discharger 2 to the cooling medium storage tank 6, so that the cooling medium 11 in the cooling medium storage tank 6 enters the pressure reducing member through the cooling medium delivery pipe 9. Preferably, the pipeline pressure drop of the pressure-inducing pipe 4 is not greater than 3%.

[0045] The upstream end of the cooling medium delivery pipe 9 is connected to the bottom of the cooling medium storage tank 6, and the downstream end of the cooling medium delivery pipe 9 passes through the second through hole and is connected to the pressure reducing member, so as to deliver the cooling medium 11 to the pressure reducing member, and cool the high-temperature and low-pressure discharged materials passing through the pressure reducing member by the cooling medium 11. Preferably, the inner diameter of the cooling medium delivery pipe 9 can be determined by the following method:

[0046]

[0047] Among them, D q w is the inner diameter of the cooling medium delivery pipe; max is the maximum discharge volume of the discharger; μ is the viscosity of the cooling medium at the storage temperature; L q is the length of the cooling medium delivery pipe.

[0048] In one embodiment, the pressure reducing member includes at least one group of first pressure reducing pipes, each group of first pressure reducing pipes includes a first high-pressure pipe section 5 and a second high-pressure pipe section 14, and the starting inner diameter of the first high-pressure pipe section 5 is smaller than the starting inner diameter of the second high-pressure pipe section 14.

[0049] A first high-pressure pipe section 5 is connected to the device to be discharged 1 and the second high-pressure pipe section 14, and a first through hole is provided at one end of the first high-pressure pipe section 5 close to the device to be discharged 1;

[0050] The second high-pressure pipe section 14 is connected to the first high-pressure pipe section 5 and the gas-liquid separation tank 15 . A second through hole is provided at one end of the second high-pressure pipe section 14 close to the gas-liquid separation tank 15 .

[0051] The pressure reducing member includes at least one group of first pressure reducing pipes, and each group of first pressure reducing pipes includes 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 connected to the device to be discharged 1, the downstream end of the first high-pressure pipe section 5 is connected to the upstream end of the second high-pressure pipe section 14, and the downstream end of the second high-pressure pipe section 14 is connected to the gas-liquid separation tank 15. A first through hole is provided at the upstream end of the first high-pressure pipe section 5 near the connection with the device to be discharged 1, and a second through hole is provided at one end of the second high-pressure pipe section 14 near the gas-liquid separation tank 15. 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.

[0052] The starting inner diameter of the first high-pressure pipe section 5 is smaller than the starting 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 expanded diameter pressure-reducing pipeline, so that the high-temperature and high-pressure discharge material is blocked at the entrance of the first high-pressure pipe section 5, thereby rapidly reducing the pressure. The high-temperature and high-pressure discharge material becomes a high-temperature and low-pressure discharge material after passing through the first high-pressure pipe section 5 and the second high-pressure pipe section 14.

[0053] Among them, the starting inner diameter refers to the inner diameter of the connection between two components. For example, the starting inner diameter of the first high-pressure pipe section 5 refers to the inner diameter of the first high-pressure pipe section 5 at the connection with the equipment to be discharged 1, and the starting inner diameter of the second high-pressure pipe section 14 refers to the inner diameter of the second high-pressure pipe section 14 at the connection with the first high-pressure pipe section 5.

[0054] In one embodiment, the first high-pressure pipe section 5 is an inclined pipe section, and the second high-pressure pipe section 14 is a straight pipe section.

[0055] In one embodiment, there are multiple groups of first pressure-reducing tubes, and the volume of each group of first pressure-reducing tubes gradually increases toward the gas-liquid separation tank 15 .

[0056] There are multiple groups of first pressure-reducing tubes, and the starting inner diameter of each group of first pressure-reducing tubes gradually increases in the direction toward the gas-liquid separation tank 15, so that the pressure-reducing component forms a multi-stage diameter expansion, and the pressure-reducing component can quickly reduce the pressure of high-temperature and high-pressure discharge materials through multiple groups of first pressure-reducing tubes, thereby improving work efficiency. Preferably, the number of groups of first pressure-reducing tubes meets the following conditions:

[0057]

[0058] Among them, P V is the maximum discharge pressure of the equipment to be discharged; n is the number of groups of the first pressure-reducing pipe.

[0059] In one embodiment, in order to facilitate the connection between the device to be discharged 1 and the gas-liquid separation tank 15, the pressure reducing component further includes a connecting pipe section 3 and a discharge pipe section 13.

[0060] The connecting pipe section 3 is connected to the device to be discharged 1 and the first high-pressure pipe section 5, and a first through hole is provided at one end of the connecting pipe section 3 close to the device to be discharged 1;

[0061] The discharge pipe section 13 is connected to the second high-pressure pipe section 14 and the gas-liquid separation tank 15 .

[0062] The connecting pipe section 3 is a pipe section resistant to high temperature and high pressure. The upstream end of the connecting pipe section 3 is connected to the equipment 1 to be discharged, and the downstream end of the connecting pipe section 3 is connected to the first high-pressure pipe section 5. A first through hole is provided at the upstream end of the connecting pipe section 3 near the connection with the equipment 1 to be discharged.

[0063] Preferably, the inner diameter of the connecting pipe section 3 is equal to the discharge diameter of the equipment to be discharged, and the length of the connecting pipe section 3 is 3 to 5 times the inner diameter of the connecting pipe section 3 .

[0064] Preferably, the starting inner diameter of the connecting pipe section 3 is smaller than the starting inner diameter of the first high-pressure pipe section 5, so that the connecting pipe section 3 can not only connect the equipment to be discharged 1 and the pressure reducing component, but also perform a first-level pressure reduction on the high-temperature and high-pressure discharged materials, thereby reducing costs.

[0065] 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 connected to the second high pressure pipe section 14 , and the downstream end of the discharge pipe section 13 is connected to the gas-liquid separation tank 15 .

[0066] Preferably, the starting inner diameter of the discharge pipe section 13 is equal to the terminal inner diameter of the second high-pressure pipe section 14 , so as to facilitate the connection of the pressure reducing component and the gas-liquid separation tank 15 .

[0067] In one of the embodiments, in order to facilitate the pressure reduction of high-temperature and high-pressure discharge materials, the pressure reducing component includes a second pressure reducing pipe, which connects the equipment to be discharged 1 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 provided at one end of the second pressure reducing pipe close to the equipment to be discharged 1, and a second through hole is provided at one end of the second pressure reducing pipe close to the gas-liquid separation tank 15.

[0068] In one embodiment, if Figure 1 and Figure 2 As shown, a cooling medium distributor 10 is provided at one end of the cooling medium delivery pipe 9 close to the second through hole, and a plurality of spray holes 12 are provided on the cooling medium distributor 10 .

[0069] A cooling medium distributor 10 is provided at the end of the cooling medium delivery pipe 9 near the second through hole. The cooling medium distributor 10 is provided with a plurality of spray holes 12. The cooling medium 11 is delivered to the pressure reducing component in the form of droplets through the plurality of spray holes 12, so that the discharged material and the cooling medium are fully mixed to achieve rapid cooling.

[0070] Preferably, the plurality of spray holes 12 are evenly distributed on the cooling medium distributor 10 .

[0071] Preferably, the total area of ​​the plurality of spray holes 12 is equal to the cross-sectional area of ​​the cooling medium delivery pipe 9 .

[0072] Preferably, the diameter of the spray hole 12 is no greater than 1 mm.

[0073] In one embodiment, a filter 8 is provided at the bottom of the cooling medium storage tank 6 .

[0074] The filter 8 is used to filter the cooling medium 11 stored in the cooling medium storage tank 6 to prevent impurities in the cooling medium 11 from clogging the cooling medium delivery pipe 9 .

[0075] In one of the embodiments, in order to facilitate the replenishment of cooling medium, a medium replenishment pipeline for connecting with external cooling medium is provided on the cooling medium storage tank 6, and a stop valve 7 is provided on the medium replenishment pipeline.

[0076] The cooling medium storage tank 6 is provided with a medium replenishing pipeline communicating with the external cooling medium, so as to replenish the cooling medium storage tank 6 with cooling medium 11. A stop valve 7 is provided on the medium replenishing pipeline, and the stop valve 7 is used to control the opening and closing of the medium replenishing pipeline.

[0077] The working principle of the discharge material processing system provided by the present invention is described below, specifically as follows:

[0078] When the high-energy material reacts in the device 1 to be discharged and an abnormal operating condition occurs, it is necessary to discharge the material therein to avoid overpressure rupture of the device 1 to be discharged. Since the pressure of the device 1 to be discharged reaches the opening pressure of the discharger 2, the discharger 2 opens, and most of the high-temperature and high-pressure discharged materials pass through the discharger 2 and reach the pressure reducing part. After the high-temperature and high-pressure materials pass through the pressure reducing part, the pressure drops rapidly to form high-temperature and low-pressure discharged materials. At the same time, a small part of the high-temperature and high-pressure discharged materials enter the cooling medium storage tank 6 through the pressure-inducing pipe 4. Under the action of high pressure, the cooling medium 11 stored in the cooling medium storage tank 6 is pressed into the pressure reducing part through the cooling medium delivery pipeline 9. The cooling medium 11 in the pressure reducing part relies on the spraying action and the direct and uniform contact heat exchange action. The cooling medium 11 will vaporize and absorb heat, and evenly mix with the high-temperature and low-pressure discharged materials passing through the pressure reducing part, thereby realizing the rapid cooling of the high-temperature and low-pressure discharged materials to form low-temperature and low-pressure discharged materials. The low-temperature and low-pressure discharged materials after cooling and depressurization enter the gas-liquid separation tank 15 through the discharge pipe 13.

[0079] By setting a discharged material cooling and pressure reducing device between the equipment to be discharged 1 and the gas-liquid separation tank 15, the discharged material processing system of the present application can be suitable for safe discharge conditions in which the maximum temperature of the discharged material is not less than 250°C and the discharge pressure is not less than 7 barG under abnormal conditions.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the present invention, rather than to limit them. Although the embodiments of the present invention have been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for cooling and reducing pressure of discharged materials, characterized in that: It includes pressure reducing parts, cooling medium storage tank, pressure pipe and cooling medium delivery pipe. A pressure reducing component, connecting the device to be discharged and the gas-liquid separation tank, the pressure reducing component is provided with a first through hole at one end close to the device to be discharged, and the pressure reducing component is provided with a second through hole at one end close to the gas-liquid separation tank, the pressure reducing component is used to reduce the pressure of the high-temperature and high-pressure discharge material in the device to be discharged, the pressure reducing component includes at least one group of first pressure reducing pipes, each group of the first pressure reducing pipes includes a first high-pressure pipe section and a second high-pressure pipe section, the starting inner diameter of the first high-pressure pipe section is smaller than the starting inner diameter of the second high-pressure pipe section, the first high-pressure pipe section connects the device to be discharged and the second high-pressure pipe section, and the first through hole is provided at one end of the first high-pressure pipe section close to the device to be discharged; the second high-pressure pipe section connects the first high-pressure pipe section and the gas-liquid separation tank, and the second through hole is provided at one end of the second high-pressure pipe section close to the gas-liquid separation tank; A cooling medium storage tank storing a cooling medium; A pressure-inducing pipe, connected with the first through hole and the cooling medium storage tank, and the pressure-inducing pipe is used to transport the high-temperature and high-pressure discharge material to the cooling medium storage tank; A cooling medium delivery pipe is connected to the cooling medium storage tank and the second through hole, and the cooling medium delivery pipe is used to deliver the cooling medium to the pressure reducing member.

2. The device for cooling and depressurizing discharged materials according to claim 1, characterized in that: The first high-pressure pipe section is an inclined pipe section, and the second high-pressure pipe section is a straight pipe section.

3. The device for cooling and depressurizing discharged materials according to claim 2, characterized in that: The number of the first pressure-reducing tubes is multiple groups, and the starting inner diameter of each group of the first pressure-reducing tubes gradually increases in the direction toward the gas-liquid separation tank.

4. The device for cooling and depressurizing discharged materials according to claim 3, characterized in that: The pressure reducing member also includes a connecting pipe section and a discharge pipe section. A connecting pipe section, connecting the device to be discharged and the first high-pressure pipe section, wherein the first through hole is provided at one end of the connecting pipe section close to the device to be discharged; The discharge pipe section is connected with the second high-pressure pipe section and the gas-liquid separation tank.

5. The device for cooling and depressurizing discharged materials according to claim 1, characterized in that: The pressure reducing component includes a second pressure reducing pipe, which connects the equipment to be discharged and the gas-liquid separation tank. The inner diameter of the second pressure reducing pipe gradually increases in the direction toward the gas-liquid separation tank. The first through hole is provided at one end of the second pressure reducing pipe close to the equipment to be discharged, and the second through hole is provided at one end of the second pressure reducing pipe close to the gas-liquid separation tank.

6. The device for cooling and depressurizing discharged materials according to any one of claims 1 to 5, characterized in that: A cooling medium distributor is provided at one end of the cooling medium delivery pipe close to the second through hole, and a plurality of spray holes are provided on the cooling medium distributor.

7. The device for cooling and depressurizing discharged materials according to claim 6, characterized in that: A filter is provided at the bottom of the cooling medium storage tank.

8. The device for cooling and depressurizing discharged materials according to claim 7, characterized in that: The cooling medium storage tank is provided with a medium replenishing pipeline for communicating with external cooling medium, and a stop valve is arranged on the medium replenishing pipeline.

9. A discharge material treatment system, characterized in that: It includes equipment to be discharged, a discharger, a device for cooling and depressurizing the discharged materials as described in any one of claims 1 to 8, and a gas-liquid separation tank, which are arranged in sequence from the upstream end to the downstream end, and the pressure reducing component of the device for cooling and depressurizing the discharged materials is connected to the downstream end of the discharger.

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