CN212206451U - Reactor internal and external pressure and differential pressure measuring device with water-cooled wall internal part - Google Patents
Reactor internal and external pressure and differential pressure measuring device with water-cooled wall internal part Download PDFInfo
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- CN212206451U CN212206451U CN202020947033.8U CN202020947033U CN212206451U CN 212206451 U CN212206451 U CN 212206451U CN 202020947033 U CN202020947033 U CN 202020947033U CN 212206451 U CN212206451 U CN 212206451U
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Abstract
The utility model provides a reactor internal and external pressure and pressure difference measuring device with a water-cooled wall internal part, which comprises a water-cooled wall section, wherein the water-cooled wall section comprises a shell and a water-cooled wall, the water-cooled wall is positioned in the shell, an overhaul interlayer is arranged between the water-cooled wall section and the shell, the shell is connected with an interlayer pressure taking and pressing pipeline and a water-cooled wall internal pressure taking and pressing pipeline, the water-cooled wall internal pressure taking and pressing pipeline passes through the shell and is pressed close to the water-cooled wall to be bent downwards, and; the interlayer pressure taking and pressing pipeline and the water wall pressure taking and pressing pipeline are respectively connected with a first pressure transmitter and a second pressure transmitter, and the interlayer pressure taking and pressing pipeline and the water wall pressure taking and pressing pipeline are connected with a differential pressure transmitter through a connecting pipeline; and a pressure taking pipeline in the water wall is provided with a high-pressure gas purging device. The utility model discloses measure accurate and long service life, reduced and overhauld the intraformational water-cooling wall internal pressure of intermediate layer and got the pressure line and receive the thermal deformation and damage the risk, solved the flying dust and got into or the problem that the slag blockked up.
Description
Technical Field
The utility model relates to a take internal and external pressure of reactor and differential pressure measuring device of water-cooled wall internals belongs to the internal and external pressure of reactor and the differential pressure measurement technical field of taking water-cooled wall internals of high temperature reactor.
Background
In chemical production, for a high-temperature reactor with a water-cooled wall section, because the temperature in the water-cooled wall of the water-cooled wall section is high, and high-temperature gas contains ash or carries slag, the measurement environment is severe, pressure measurement has certain difficulty, or the measurement precision is insufficient, or the high-temperature gas is easy to block and damage, but the pressure in the reactor with the water-cooled wall internals, the pressure outside the water-cooled wall and the pressure difference between the pressure and the pressure inside the reactor with the water-cooled wall internals have important guiding significance for operation.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the technical proposal is that the internal and external pressure and differential pressure measuring device of the reactor with the water-cooled wall internal part has the following technical proposal,
a reactor internal and external pressure and differential pressure measuring device with a water-cooled wall internal part comprises a water-cooled wall section, wherein the water-cooled wall section comprises a shell and a water-cooled wall, the water-cooled wall is positioned in the shell, an overhauling interlayer is arranged between the water-cooled wall section and the shell, an interlayer pressure taking and pressing pipeline and a water-cooled wall internal pressure taking and pressing pipeline are connected to the shell through a flange, the water-cooled wall internal pressure taking and pressing pipeline penetrates through the shell and is bent downwards close to the water-cooled wall, and an expansion bend is arranged in the overhauling interlayer; the interlayer pressure taking and pressing pipeline and the water wall internal pressure taking and pressing pipeline are respectively connected with a first pressure transmitter and a second pressure transmitter, and the interlayer pressure taking and pressing pipeline and the water wall internal pressure taking and pressing pipeline are connected with a differential pressure transmitter through a connecting pipeline.
Preferably, the water-cooled wall comprises tubes, rib plates are arranged between the tubes, and the pressure sampling and pressing line in the water-cooled wall penetrates through the rib plates and is in full-welding connection with the rib plates.
Further, the bent part of the pressure taking and pressing pipeline end in the water wall is positioned in the gap between the tubes.
Preferably, the expansion bend is arranged close to the shell side and has a gap with the shell.
Preferably, the pressure taking and pressing pipeline in the water wall is connected with a high-pressure gas purging pipeline, the medium is high-pressure nitrogen, and a flowmeter is arranged on the high-pressure gas purging pipeline.
Furthermore, a first switch valve is arranged on a connecting pipeline on two sides of the differential pressure transmitter; a second switch valve is arranged on the front side of a first pressure transmitter connected to the interlayer pressure sampling and pressing pipeline, and the second switch valve is arranged close to the first pressure transmitter; the second pressure transmitter is connected with a pressure sampling and pressing pipeline in the water wall through a connecting pipeline, and a third switch valve is arranged on the connecting pipeline connected with the second pressure transmitter; and a fourth switch valve is arranged on the pressure sampling and pressing pipeline in the water-cooled wall, and the fourth switch valve is arranged close to the shell.
Furthermore, the high-pressure gas purging pipeline is provided with a regulating valve and a one-way valve, the regulating valve is arranged at the downstream of the flow meter, and the one-way valve is arranged between the regulating valve and the pressure taking pipeline in the water wall.
Preferably, the expansion bend is a U-shaped bend or a wave bend.
The utility model has accurate measurement and long service life, and the pressure tapping pipeline in the water wall can perform high-pressure gas purging, thereby not only preventing the flying ash from being blocked, but also taking away heat and protecting the pressure tapping pipeline in the water wall; in addition, the pressure and pressure taking and pressing line in the water-cooled wall is provided with an expansion bend, namely a U-shaped bend or a wave-shaped bend, so that the risk of thermal deformation damage to the pressure and pressure taking and pressing line in the water-cooled wall in an overhauling interlayer is reduced, and the problem of fly ash entering or slag blockage can be well solved by adopting a downward bending type at the head part extending into the water-cooled wall.
Drawings
FIG. 1 is a schematic structural view of a device for measuring internal and external pressures and differential pressures of a reactor with a water-cooled wall internal part according to the present invention.
FIG. 2 is a schematic view of a partial structure of a device for measuring internal and external pressures and differential pressures of a reactor with a water-cooled wall internal member according to the present invention.
Fig. 3 is a top view structural diagram of the connection between the pressure tapping pipeline and the water wall in the water wall of the present invention.
Fig. 4 is a side view structural diagram of the pressure tapping pipeline in the water wall of the utility model connected with the water wall.
Fig. 5 is a schematic structural diagram of the pressure tapping line reducing in the water wall of the utility model.
In the figure: 1. water-cooled wall sections; 101. a housing; 102. a water cooled wall; 1021. arranging pipes; 1022. a rib plate; 2. overhauling the interlayer; 3. an interlayer pressure tapping pipeline; 4. a pressure taking and pressing pipeline in the water wall; 5. u-shaped bending; 6. a first pressure transmitter; 7. a second pressure transmitter; 8. connecting a pipeline; 9. a differential pressure transmitter; 10. a high pressure gas purge line; 11. a flow meter; 12. a first on-off valve; 13. a second on-off valve; 14. a third on-off valve; 15. a fourth switching valve; 16. adjusting a valve; 17. a one-way valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the internal and external pressure and pressure difference measuring device with a water-cooled wall internal part for a reactor comprises a water-cooled wall section 1, wherein the water-cooled wall section 1 comprises a shell 101 and a water-cooled wall 102, the water-cooled wall 102 is positioned in the shell 101, an overhaul interlayer 2 is arranged between the water-cooled wall 102 and the shell 101, and in order to protect the water-cooled wall 102, a certain pressure difference requirement generally exists between the inside and the outside of the water-cooled wall 102, and a suitable gas is introduced into the overhaul interlayer 2 to ensure that the internal and external pressure difference of the water-cooled. The interlayer pressure taking and pressing pipeline 3 and the water wall internal pressure taking and pressing pipeline 4 are connected through the upper flange and the lower flange of the shell 101, the water wall internal pressure taking and pressing pipeline 4 penetrates through the shell 101 and penetrates through the water wall 102 to be bent downwards, and the water wall internal pressure taking and pressing pipeline 4 in the overhaul interlayer 2 is provided with an expansion bend; the interlayer pressure taking pipeline 3 and the water wall internal pressure taking pipeline 4 are respectively connected with a first pressure transmitter 6 and a second pressure transmitter 7, and the interlayer pressure taking pipeline 3 and the water wall internal pressure taking pipeline 4 are connected with a differential pressure transmitter 9 through a connecting pipeline 8. The first pressure transmitter 6 is used for measuring the pressure in the overhaul interlayer 2, namely the pressure outside the water wall 102; the second pressure transmitter 7 is used for measuring the pressure in the water wall, namely the pressure in the water wall 102; the differential pressure transmitter 9 is used for measuring the differential pressure inside and outside the water-cooled wall 102.
The water-cooled wall 102 comprises tubes 1021, rib plates 1022 are arranged between the tubes 1021, the diameter of the pressure-taking pipeline 4 in the water-cooled wall is changed after the pressure-taking pipeline 4 is connected with the shell 101 through a flange, and the pressure-taking pipeline 4 in the water-cooled wall penetrates through the rib plates 1022 and is in full-welding connection with the rib plates 1022 to prevent gas leakage. The pressure taking and pressing pipeline 4 in the water wall extends out of the rib plate 1022 for a certain length and then is bent downwards close to the water wall 102, the bent part at the end part of the pressure taking and pressing pipeline 4 in the water wall is positioned in a gap between the tubes 1021, ash is prevented from entering the pressure taking and pressing pipeline 4 in the water wall in the operation process and blocking the pressure taking and pressing pipeline 4, and expansion allowance is reserved at the same time; the extension length of the pressure taking and pressing pipeline 4 extending out of the rib plate 1022 in the water wall is shown in fig. 3 and 4, and the extension length cannot extend out of the tube array 1021 which is too long to exceed the water wall 102, so that the service life of the tube array is prolonged.
Because the temperature is higher in the water-cooling wall section 1, pipeline 4 is pressed to general water-cooling wall internal pressure is being close to water-cooling wall 102 and is stretching into water-cooling wall 102 part and adopt high temperature resistant material, in order to avoid water-cooling wall internal pressure to press pipeline 4 thermal expansion to warp and damage, water-cooling wall internal pressure between casing 101 and the water-cooling wall 102 is pressed pipeline 4 and is equipped with the inflation bend, preferably the curved 5 or wave form bend of U type, the utility model discloses select the curved 5 of U type for use, the inflation bend is close to casing 101 side and sets up, and leaves the clearance between the casing 101. The height of the U-shaped bend 5 is calculated according to the expansion difference of the water wall 102 and the shell 101, and the heights are different under different working conditions. The U-bend 5 is located close to the furnace wall shell 101 side and at a clear distance from the shell 101.
The pressure taking and pressing pipeline 4 in the water wall is connected with a high-pressure gas purging pipeline 10, a flowmeter 11 is arranged on the high-pressure gas purging pipeline 10, low-temperature high-pressure gas and high-pressure nitrogen can be introduced into the pressure taking and pressing pipeline 4 in the water wall, the gas flow is controlled within a proper range through the flowmeter 11, the pressure taking and pressing pipeline 4 in the water wall is protected from being blocked by molten slag, and the pressure of the low-temperature high-pressure gas introduced into the pressure taking and pressing pipeline 4 in the water wall is preferably 4-12 MPa.
A first switch valve 12 is arranged on the connecting pipeline 8 at two sides of the differential pressure transmitter 9; a second switch valve 13 is arranged on the front side of the first pressure transmitter 6 connected to the interlayer pressure sampling pipeline 3, and the second switch valve 13 is arranged close to the first pressure transmitter 6; the second pressure transmitter 7 is connected with a pressure taking and pressing pipeline 4 in the water wall through a connecting pipeline 8, and a third on-off valve 14 is arranged on the connecting pipeline 8 connected with the second pressure transmitter 7; and a fourth switch valve 15 is arranged on the pressure taking pipeline 4 in the water-cooled wall, and the fourth switch valve 15 is arranged close to the shell 101. The first switching valve 12 is disposed upstream of the second switching valve 13 and downstream of the fourth switching valve 15, respectively. The high-pressure gas purging pipeline 10 is provided with a regulating valve 16 and a one-way valve 17, the regulating valve 16 is arranged at the downstream of the flowmeter 11, and the one-way valve 17 is arranged between the regulating valve 16 and the pressure taking pipeline 4 in the water wall.
Under the normal measurement condition, the first switch valve 12, the second switch valve 13, the third switch valve 14 and the fourth switch valve 15 are all opened, the pressure in the maintenance interlayer 2 outside the water wall 102 is measured through the first pressure transmitter 6, the pressure in the water wall 102 is measured through the second pressure transmitter 7, the pressure difference between the inside and the outside of the water wall 102 is measured through the pressure difference transmitter 9, when the measured value of the second pressure transmitter 7 or the pressure difference transmitter 9 is abnormal due to the blockage of the pressure taking and pressing pipeline 4 in the water wall, the first switch valve 12 and the third switch valve 14 are closed, the regulating valve 16 is controlled to be opened, high-pressure gas is introduced into the high-pressure gas purging pipeline 10 and enters the pressure taking and pressing pipeline 4 in the water wall to purge the pipeline, partial heat is taken away, the pressure taking and pressing pipeline 4 in the water wall is protected to a certain degree, and the blockage of the pressure taking and pressing pipeline 4 in the water wall can be, the check valve 17 can prevent high-temperature gas in the water wall from flowing into the high-pressure gas purging line 10 through the pressure taking line 4 in the water wall. Meanwhile, due to the arrangement of the first switch valve 12, the second switch valve 13, the third switch valve 14 and the fourth switch valve 15, the first pressure transmitter 6, the second pressure transmitter 7 and the differential pressure transmitter 9 can be conveniently overhauled and maintained.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (8)
1. The utility model provides a take inside and outside pressure of reactor and differential pressure measuring device of water-cooled wall internals which characterized in that: the water-cooled wall section comprises a shell and a water-cooled wall, wherein the water-cooled wall section comprises a shell and a water-cooled wall, an overhaul interlayer is arranged between the water-cooled wall and the shell, an interlayer pressure taking pipeline and a water-cooled wall internal pressure taking pipeline are connected to the shell through flanges, the water-cooled wall internal pressure taking pipeline penetrates through the shell and is bent downwards by being close to the water-cooled wall, and an expansion bend is arranged in the overhaul interlayer of the water-cooled wall internal pressure taking pipeline; the interlayer pressure taking and pressing pipeline and the water wall internal pressure taking and pressing pipeline are respectively connected with a first pressure transmitter and a second pressure transmitter, and the interlayer pressure taking and pressing pipeline and the water wall internal pressure taking and pressing pipeline are connected with a differential pressure transmitter through a connecting pipeline.
2. The device for measuring the pressure inside and outside the reactor and the differential pressure of the reactor with the water-cooled wall internals as claimed in claim 1, is characterized in that: the water-cooled wall comprises tubes, rib plates are arranged between the tubes, and the pressure sampling and pressing line in the water-cooled wall penetrates through the rib plates and is in full-welding connection with the rib plates.
3. The device for measuring the pressure inside and outside the reactor and the differential pressure of the reactor with the water-cooled wall internals as claimed in claim 2, wherein: the bent part of the pressure taking and pressing pipeline end in the water wall is positioned in the gap between the tubes.
4. The device for measuring the pressure inside and outside the reactor and the differential pressure of the reactor with the water-cooled wall internals as claimed in claim 1, is characterized in that: the expansion bend is arranged close to the shell side and a gap is reserved between the expansion bend and the shell.
5. The device for measuring the pressure inside and outside the reactor and the differential pressure of the reactor with the water-cooled wall internals as claimed in claim 1, is characterized in that: and the pressure taking and pressing pipeline in the water-cooled wall is connected with a high-pressure gas purging pipeline, and a flowmeter is arranged on the high-pressure gas purging pipeline.
6. The device for measuring the pressure inside and outside the reactor and the differential pressure of the reactor with the water-cooled wall internals as claimed in claim 5, wherein: a first switch valve is arranged on the connecting pipeline on two sides of the differential pressure transmitter; a second switch valve is arranged on the front side of a first pressure transmitter connected to the interlayer pressure sampling and pressing pipeline, and the second switch valve is arranged close to the first pressure transmitter; the second pressure transmitter is connected with a pressure sampling and pressing pipeline in the water wall through a connecting pipeline, and a third switch valve is arranged on the connecting pipeline connected with the second pressure transmitter; and a fourth switch valve is arranged on the pressure sampling and pressing pipeline in the water-cooled wall, and the fourth switch valve is arranged close to the shell.
7. The device for measuring the pressure inside and outside the reactor and the differential pressure of the reactor with the water-cooled wall internals as claimed in claim 6, wherein: the high-pressure gas purging pipeline is provided with a regulating valve and a one-way valve, the regulating valve is arranged at the downstream of the flow meter, and the one-way valve is arranged between the regulating valve and the pressure taking pipeline in the water wall.
8. The device for measuring the pressure inside and outside the reactor and the differential pressure of the reactor with the water-cooled wall internals as claimed in claim 1, is characterized in that: the expansion bend is a U-shaped bend or a wave-shaped bend.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020947033.8U CN212206451U (en) | 2020-05-29 | 2020-05-29 | Reactor internal and external pressure and differential pressure measuring device with water-cooled wall internal part |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020947033.8U CN212206451U (en) | 2020-05-29 | 2020-05-29 | Reactor internal and external pressure and differential pressure measuring device with water-cooled wall internal part |
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| CN212206451U true CN212206451U (en) | 2020-12-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111562048A (en) * | 2020-05-29 | 2020-08-21 | 山东兖矿国拓科技工程股份有限公司 | Reactor internal and external pressure and differential pressure measuring device with water-cooled wall internal part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111562048A (en) * | 2020-05-29 | 2020-08-21 | 山东兖矿国拓科技工程股份有限公司 | Reactor internal and external pressure and differential pressure measuring device with water-cooled wall internal part |
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