CN215411818U - High-pressure steam surge tank interlocking control system - Google Patents
High-pressure steam surge tank interlocking control system Download PDFInfo
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- CN215411818U CN215411818U CN202121679904.3U CN202121679904U CN215411818U CN 215411818 U CN215411818 U CN 215411818U CN 202121679904 U CN202121679904 U CN 202121679904U CN 215411818 U CN215411818 U CN 215411818U
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Abstract
A high-pressure steam pressure-stabilizing tank interlocking control system comprises a pressure-stabilizing tank, a pressurizing pipeline, a pressure relief pipeline, a water discharge pipeline, a drainage pipeline and a high-pressure water return pipeline, wherein the upper part of the pressure-stabilizing tank is connected with the pressurizing pipeline from a boiler; the lower part of the pressure stabilizing tank is connected with a water discharge pipeline, and one end of the pressure stabilizing tank close to the pressure stabilizing tank is connected with a water discharge electric valve; the upper part of the pressure stabilizing tank is connected with a pressure relief pipeline going to the deaerator; the high pressure return water pipeline be close to conduction oil heat exchanger end and be equipped with a stop valve and be close to boiler hot water pipe end and be equipped with a check valve, be equipped with two parallel pipelines between stop valve and check valve, on every parallel pipeline, be equipped with manual stop valve, drainage pump and hydrophobic motorised valve in proper order from the stop valve to the check valve direction, surge tank middle part connect the drain line, surge tank lower part and high pressure return water pipeline on be close to the one end of stop valve and link to each other.
Description
Technical Field
The invention relates to the field of pipeline systems, in particular to an interlocking control system of a high-pressure steam pressure stabilizing tank.
Background
At present, heat transfer oil boilers are mainly medium and small in heat exchange, the social requirements on environmental protection are more and more strict, and medium and small boilers are eliminated, so that the market prospect of changing the size and arranging the heat transfer oil heat exchanger taking steam as a medium is wide, particularly, steam heat transfer oil heat exchange stations are intensively arranged in an industrial park, the investment cost is reduced, the requirements of enterprises on heat exchange are met, and the management and overall arrangement of the enterprises are facilitated.
However, this change also brings new problems: the newly-arranged heat exchange station in the industrial park is far away from the existing boiler plant, so that the vibration caused by the vaporization of the high-pressure return water after steam heat exchange is an inevitable problem, and certain trouble is caused to enterprises.
Disclosure of Invention
In order to solve the problems, the invention provides an interlocking control system of a high-pressure steam surge tank.
In order to achieve the purpose, the high-pressure steam pressure stabilizing tank interlocking control system comprises a pressure stabilizing tank, a pressurizing pipeline, a pressure relief pipeline, a water drain pipeline, a drain pipeline and a high-pressure water return pipeline, wherein the upper part of the pressure stabilizing tank is connected with the pressurizing pipeline from a boiler, one end of the pipeline close to the pressure stabilizing tank is provided with two steam inlet electric valves which are connected in parallel, and an electromagnetic valve and a hand valve are connected between the steam inlet electric valves and the boiler; the upper part of the pressure stabilizing tank is connected with a pressure relief pipeline going to the deaerator, one end of the pressure relief pipeline close to the pressure stabilizing tank is connected with an electric steam exhaust valve, and a hand valve and a throttling device are connected between the electric steam exhaust valve and the deaerator; the lower part of the pressure stabilizing tank is connected with a water discharge pipeline, one end of the pressure stabilizing tank close to the pressure stabilizing tank is connected with a water discharge electric valve, and a hand valve is connected between the water discharge electric valve and the high-pressure water return pipeline; the high-pressure water return pipeline is provided with a stop valve at the end close to the heat-conducting oil heat exchanger, a check valve at the end close to the hot water pipe of the boiler, two parallel pipelines are arranged between the stop valve and the check valve, and a manual stop valve, a drain pump and a drain electric valve are sequentially arranged on each parallel pipeline from the stop valve to the check valve; the middle part of the pressure stabilizing tank is connected with a drainage pipeline, a port in the middle part of the pressure stabilizing tank is externally connected with a check valve and a stop valve, the stop valve extends backwards to form two parallel pipelines which are respectively connected to two parallel pipelines of the high-pressure water return pipeline, the parallel pipelines are respectively connected with a stop valve and a filter, the filter is connected between a drainage pump and a drainage electric valve on the high-pressure water return pipeline, one end of one of the parallel pipelines, which is close to the pressure stabilizing tank, is provided with a big end and a small end, and the big end faces the pressure stabilizing tank; the lower part of the pressure stabilizing tank is connected with one end of the high-pressure water return pipeline, which is close to the stop valve, and two hand valves are connected in series on the pipeline. The control system controls the pressure of the pressure stabilizing tank through the steam inlet electric valve on the steam inlet pipeline of the pressure stabilizing tank, so that the pressure of the high-pressure return pipe communicated with the pressure stabilizing tank is stabilized, and the problem of pipeline vibration caused by vaporization of high-pressure return water due to pressure reduction of long-distance delivery of high-pressure return water of the heat transfer oil heat exchange station is well solved; on the other hand, the liquid level of the surge tank is regulated through the drain pump, the liquid level of the surge tank is stabilized, and the system safety is ensured.
In order to detect the physical parameter conditions of each part of the system in real time, the middle part of the pressure stabilizing tank is provided with a liquid level transmitter and a local display liquid level meter; the upper part of the pressure stabilizing tank is provided with a pressure transmitter I, a local pressure gauge, a temperature detection point I and an air exhaust silencer; the lower part of the pressure stabilizing tank is provided with a second temperature detection point and a temperature display; a second pressure transmitter and a pressure detection point are connected in series between the parallel pipeline and the electric valve on the supercharging pipeline; and a second pressure transmitter is connected in series between the parallel pipeline on the high-pressure water return pipeline and the check valve. The installation of each instrument, instrument provides visual data for the data of the pressure of each position and liquid level in the system, simultaneously, the installation of liquid level changer and pressure transmitter makes the system obtain certain automatically regulated ability.
In order to adjust the liquid level and the pressure in the pressure stabilizing tank, a first pressure transmitter at the upper part of the pressure stabilizing tank is connected with a steam exhaust electric valve on a pressure relief pipeline through a lead, and the first pressure transmitter is simultaneously connected with two steam inlet electric valves which are connected on a pressurization pipeline in parallel through leads respectively; and the liquid level transmitter in the middle of the pressure stabilizing tank is connected with a water drainage electric valve on the water drainage pipeline through a lead, and the liquid level transmitter is simultaneously connected with a drainage pump on the high-pressure water return pipeline through a lead. The design is that when the liquid level is too high, the emergency water drain valve drains water to maintain the liquid level of the surge tank to be a normal value; when the liquid level of the pressure stabilizing tank drops to a low liquid level due to load change of the heat transfer oil heat exchanger and system pollution discharge, the liquid level of the pressure stabilizing tank is maintained to a normal value by adjusting the drain pump; through the control to the pressure of surge tank, liquid level, maintain surge tank and high-pressure return pipe pressure, stabilize the surge tank liquid level.
The high-pressure steam pressure stabilizing tank interlocking control system maintains the pressure of the pressure stabilizing tank and the pressure of the high-pressure return pipe and stabilizes the liquid level of the pressure stabilizing tank by controlling the pressure and the liquid level of the pressure stabilizing tank, solves the problems of high-pressure return pipe vibration and the like of a heat transfer oil heat exchange station due to high pressure and long vaporization of a pipeline, eliminates obstacles for popularization of a heat transfer oil heat exchange boiler, and simultaneously realizes the aims of energy conservation and emission reduction because the energy sources (steam and high-pressure return water) utilized in the system are original energy sources in a plant area.
Drawings
FIG. 1 is a schematic view of example 1.
1-pressure stabilizing tank, 2-liquid level transmitter, 3-local display liquid level meter, 4-pressure transmitter one, 5-
A local pressure gauge, a first 6-temperature detection point, a first 7-air exhaust silencer, a 8-temperature display,
9-a second temperature detection point, 10-a pressurizing pipeline, 11-an electric steam inlet valve, 12-a second pressure transmitter,
13-temperature detection point three, 20-pressure relief pipeline, 21-steam exhaust electric valve, 22-throttling device, 30-
A water discharge pipeline, a 31-water discharge electric valve, a 40-drainage pipeline, a 41-filter, a 50-high pressure water return pipeline, a 51-drainage electric valve, a 52-drainage pump and a 53-manual stop valve
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.
Example 1:
the high-pressure steam pressure stabilizing tank interlocking control system described in the embodiment comprises a pressure stabilizing tank 1, a pressurization pipeline 10, a pressure relief pipeline 20, a water discharge pipeline 30, a drain pipeline 40 and a high-pressure water return pipeline 50, wherein the upper part of the pressure stabilizing tank 1 is connected with the pressurization pipeline 10 from a boiler, one end of the pipeline, which is close to the pressure stabilizing tank 1, is provided with two steam inlet electric valves 11 which are connected in parallel, and a solenoid valve and a hand valve are connected between the steam inlet electric valves 11 and the boiler; the upper part of the pressure stabilizing tank 1 is connected with a pressure relief pipeline 20 going to a deaerator, one end of the pressure relief pipeline 20 close to the pressure stabilizing tank 1 is connected with an electric steam exhaust valve 21, and a hand valve and a throttling device 22 are connected between the electric steam exhaust valve 21 and the deaerator; the lower part of the pressure stabilizing tank 1 is connected with a water discharge pipeline 30, one end of the pressure stabilizing tank 1 close to the water discharge electric valve 31 is connected with a hand valve, and a hand valve is connected between the water discharge electric valve 31 and the high-pressure water return pipeline 50; the high-pressure water return pipeline 50 is provided with a stop valve at the end close to the heat-conducting oil heat exchanger, a check valve at the end close to the hot water pipe of the boiler, two parallel pipelines are arranged between the stop valve and the check valve, and a manual stop valve 53, a drain pump 52 and a drain electric valve 51 are sequentially arranged on each parallel pipeline from the stop valve to the check valve; the middle part of the pressure stabilizing tank 1 is connected with a drainage pipeline 40, the middle port of the pressure stabilizing tank 1 is externally connected with a check valve and a stop valve, the stop valve extends backwards to form two parallel pipelines which are respectively connected to two parallel pipelines of the high-pressure water return pipeline 50, the parallel pipelines are both connected with a stop valve and a filter 41, the filter 41 is connected between a drainage pump 52 and a drainage electric valve 51 on the high-pressure water return pipeline 50, one end of one of the parallel pipelines, which is close to the pressure stabilizing tank 1, is provided with a big end and a small end, and the big end faces the pressure stabilizing tank 1; the lower part of the pressure stabilizing tank 1 is connected with one end of a high-pressure water return pipeline 50 close to the stop valve, and two hand valves are connected in series on the pipeline.
The middle part of the surge tank 1 is provided with a liquid level transmitter 2 and a local display liquid level meter 3; the upper part of the pressure stabilizing tank 1 is provided with a pressure transmitter I4, a local pressure gauge 5, a temperature detection point I6 and an air exhaust silencer 7; the lower part of the pressure stabilizing tank 1 is provided with a second temperature detection point 9 and a temperature display 8; a second pressure transmitter 12 and a pressure detection point 13 are connected in series on the pressurization pipeline 10 between the parallel pipeline and the electric valve; and a second pressure transmitter 51 is connected in series between the parallel pipeline on the high-pressure water return pipeline 50 and the check valve. The first pressure transmitter 4 at the upper part of the pressure stabilizing tank 1 is connected with an exhaust electric valve 21 on the pressure relief pipeline 20 through a lead, and the first pressure transmitter 4 is simultaneously connected with two parallel inlet electric valves 11 on the pressure boost pipeline 10 through leads respectively; the liquid level transmitter 2 in the middle of the pressure stabilizing tank 1 is connected with the water discharging electric valve 31 on the water discharging pipeline 30 through a lead, and the liquid level transmitter 2 is simultaneously connected with the drain pump 52 on the high-pressure water returning pipeline 50 through a lead.
Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. A high-pressure steam pressure stabilizing tank interlocking control system comprises a pressure stabilizing tank (1), a pressurization pipeline (10), a pressure relief pipeline (20), a water drain pipeline (30), a drain pipeline (40) and a high-pressure water return pipeline (50), and is characterized in that the upper part of the pressure stabilizing tank (1) is connected with the pressurization pipeline (10) from a boiler, one end of the pipeline close to the pressure stabilizing tank (1) is provided with two steam inlet electric valves (11) which are connected in parallel, and an electromagnetic valve and a hand valve are connected between the steam inlet electric valves (11) and the boiler; the upper part of the pressure stabilizing tank (1) is connected with a pressure relief pipeline (20) going to the deaerator, one end of the pressure relief pipeline (20) close to the pressure stabilizing tank (1) is connected with an electric steam exhaust valve (21), and a hand valve and a throttling device (22) are connected between the electric steam exhaust valve (21) and the deaerator; the lower part of the pressure stabilizing tank (1) is connected with a water discharge pipeline (30), one end of the pressure stabilizing tank close to the pressure stabilizing tank (1) is connected with a water discharge electric valve (31), and a hand valve is connected between the water discharge electric valve (31) and the high-pressure water return pipeline (50); the high-pressure water return pipeline (50) is provided with a stop valve at the end close to the heat-conducting oil heat exchanger, a check valve at the end close to the boiler hot water pipe, two parallel pipelines are arranged between the stop valve and the check valve, and a manual stop valve (53), a drain pump (52) and a drain electric valve (51) are sequentially arranged on each parallel pipeline from the stop valve to the check valve; the middle part of the pressure stabilizing tank (1) is connected with a drainage pipeline (40), the middle port of the pressure stabilizing tank (1) is externally connected with a check valve and a stop valve, the stop valve extends backwards to form two parallel pipelines which are respectively connected to two parallel pipelines of the high-pressure water return pipeline (50), the parallel pipelines are both connected with a stop valve and a filter (41), the filter (41) is connected between a drainage pump (52) and a drainage electric valve (51) on the high-pressure water return pipeline (50), one end of one of the parallel pipelines, which is close to the pressure stabilizing tank (1), is provided with a big end and a small end, and the big end faces the pressure stabilizing tank (1); the lower part of the pressure stabilizing tank (1) is connected with one end, close to the stop valve, of the high-pressure water return pipeline (50), and two hand valves are connected in series on the pipeline.
2. The high-pressure steam surge tank interlock control system according to claim 1, wherein a liquid level transmitter (2) and an in-situ display liquid level meter (3) are installed in the middle of the surge tank (1); the upper part of the pressure stabilizing tank (1) is provided with a pressure transmitter I (4), a local pressure gauge (5), a temperature detection point I (6) and an air exhaust silencer (7); the lower part of the pressure stabilizing tank (1) is provided with a second temperature detection point (9) and a temperature display (8); a second pressure transmitter (12) and a pressure detection point (13) are connected in series on the pressurization pipeline (10) between the parallel pipeline and the electric valve; and a second pressure transmitter (12) is connected in series between the parallel pipeline on the high-pressure water return pipeline (50) and the check valve.
3. The high-pressure steam surge tank interlocking control system according to claim 2, characterized in that a first pressure transmitter (4) at the upper part of the surge tank (1) is connected with an electric steam exhaust valve (21) on the pressure relief pipeline (20) through a lead, and the first pressure transmitter (4) is simultaneously connected with two electric steam inlet valves (11) on the pressurization pipeline (10) and connected with the same through leads respectively; the liquid level transmitter (2) in the middle of the pressure stabilizing tank (1) is connected with a water discharging electric valve (31) on a water discharging pipeline (30) through a lead, and the liquid level transmitter (2) is simultaneously connected with a drain pump (52) on a high-pressure water return pipeline (50) through a lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121679904.3U CN215411818U (en) | 2021-07-23 | 2021-07-23 | High-pressure steam surge tank interlocking control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121679904.3U CN215411818U (en) | 2021-07-23 | 2021-07-23 | High-pressure steam surge tank interlocking control system |
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| Publication Number | Publication Date |
|---|---|
| CN215411818U true CN215411818U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121679904.3U Active CN215411818U (en) | 2021-07-23 | 2021-07-23 | High-pressure steam surge tank interlocking control system |
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| Country | Link |
|---|---|
| CN (1) | CN215411818U (en) |
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2021
- 2021-07-23 CN CN202121679904.3U patent/CN215411818U/en active Active
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