CN219263969U

CN219263969U - Industrial steam supply communication pipeline

Info

Publication number: CN219263969U
Application number: CN202320242944.4U
Authority: CN
Inventors: 刘召林; 王丽华; 张曙光; 张国滨; 王淑刚; 胡涛
Original assignee: Huadian Weifang Power Generation Co Ltd
Current assignee: Huadian Weifang Power Generation Co Ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-06-27
Anticipated expiration: 2033-02-17

Abstract

The utility model belongs to the technical field of steam heating, and particularly relates to an industrial steam supply communication pipeline. The high-pressure steam mother pipeline and the low-pressure steam mother pipeline are respectively connected with the pressure matcher through a first butterfly valve and a second butterfly valve, an outlet of the pressure matcher is connected with an inlet pipeline of the desuperheater, a branch pipeline is arranged on the high-pressure steam mother pipeline, an outlet of the branch pipeline is connected with the inlet pipeline of the desuperheater, and an outlet of the desuperheater is connected with a temperature transmitter and a pressure transmitter in sequence and then is connected with an external industrial steam supply mother pipe. The high-pressure steam and the low-pressure steam are mixed through the pressure matcher, and the regulated steam pressure, temperature and flow can meet the requirements of users; the throttling loss generated by the pressure reduction of the high-pressure steam of the original industrial steam pipeline is reduced, the flow of the high-pressure steam is reduced, the utilization value of low-quality steam is improved, and the stability of hot mixing steam supply is improved.

Description

Industrial steam supply communication pipeline

Technical Field

The utility model belongs to the technical field of steam heating, and particularly relates to an industrial steam supply communication pipeline.

Background

With the development of economy, the demand of industrial steam by enterprises is increasing. The original external industrial steam supply source of the company is taken from plant steam, the maximum steam flow is about 50t/h, the industrial steam demand is about 100 t/h in winter, the old industrial steam pipeline can not meet the demands of users in winter, and the design of the stability and the heat supply allowance of the industrial steam supply system is important. Therefore, new steam sources are needed to be added on the old industrial steam pipelines, and the overall industrial steam supply requirement is ensured, so that the steam supply compensation capability is increased, and the industrial steam supply system is more stable.

However, the existing two steam parameters are different from those of the old industrial steam supply pipeline, such as pressure, temperature, flow and the like, and cannot be directly connected with each other, and the existing two steam parameters can be realized only by a steam connection pipeline with a specific design.

Disclosure of Invention

The present utility model aims to provide an industrial steam supply connecting pipeline aiming at the problems existing in the prior art.

In order to solve the problems, the technical scheme adopted by the utility model is as follows:

the utility model provides an industry supplies vapour communication pipeline, includes high pressure steam female pipeline, low pressure steam female pipeline, pressure matcher, desuperheater, old industrial gas pipeline and external industry supplies vapour female pipe, high pressure steam female pipeline with low pressure steam female pipeline respectively through first butterfly valve and second butterfly valve with pressure matcher links to each other, the export of pressure matcher links to each other with the entry pipeline of desuperheater, is provided with the branch road pipeline on the high pressure steam female pipeline, the branch road pipeline export through the fourth butterfly valve with the entry pipeline of desuperheater links to each other, the desuperheater export has connected gradually behind temperature transmitter and the pressure transmitter with external industry supplies vapour female pipe links to each other, and old industrial gas pipeline directly links to each other with external industry supplies vapour female pipe through communication valve.

Optionally, a pressure reducer is arranged on the branch pipeline.

Optionally, the outlet of the pressure matcher is connected with the inlet pipeline of the desuperheater through a third butterfly valve, and a fifth butterfly valve is arranged between the inlet of the branch pipeline and the pressure matcher in the high-pressure steam mother pipeline.

Optionally, the high-pressure steam female pipeline and the low-pressure steam female pipeline are both provided with a drainage component.

Optionally, the drainage subassembly includes the drainage pipe, and the drainage pipe sets up on high pressure steam female pipeline and low pressure steam female pipeline, be connected with the drain pipe behind the drainage pipe through parallelly connected first drainage pipeline and the second drainage pipeline, be equipped with the steam trap on the first drainage pipeline, the entrance point and the exit end of steam trap all are provided with first stop valve, be provided with the second stop valve on the second drainage pipeline.

Optionally, the inlet end of the desuperheater is connected with a temperature reducing water pipe, and the temperature transmitter and the pressure transmitter are both provided with a PLC control device.

Optionally, the pressure matcher is a multichannel pressure matcher.

Optionally, the outlet of the desuperheater is provided with a pressure gauge, the outlet pipeline of the pressure transmitter is provided with a safety valve, and the safety valve is connected with an external industrial steam supply main pipe after passing through a control valve.

Compared with the prior art, the utility model has the beneficial effects that:

according to the industrial steam supply pipeline, after the high-pressure steam and the low-pressure steam are mixed by the pressure matcher, the pressure, the temperature and the flow of the steam can meet the requirements of users; and the throttling loss of the high-pressure steam of the original industrial steam pipeline generated by decompression is reduced, the flow of the high-pressure steam is reduced, the utilization value of low-quality steam is improved, the efficiency of cogeneration is improved, and the stability of the mixed steam supply of the high-pressure steam and the low-pressure steam is improved by arranging the auxiliary steam box.

Drawings

FIG. 1 is a schematic illustration of an industrial steam supply communication line;

in the figure: 1. a high pressure steam bus pipe; 11. a first butterfly valve; 12. a fifth butterfly valve; 2. a low pressure steam bus duct; 21. a second butterfly valve; 3. a pressure matcher; 4. desuperheater; 41. a temperature transmitter; 42. a pressure transmitter; 43. a temperature reducing water pipe; 431. a regulating valve; 44. a safety valve; 5. old industrial gas pipelines; 51. a communication valve; 6. a main pipe for supplying steam to the outside industry; 7. a third butterfly valve; 8. a branch pipe; 81. a fourth butterfly valve; 82. a pressure reducer; 9. a hydrophobic component; 91. a water drain pipe; 92. a first hydrophobic line; 921. a steam trap; 922. a first stop valve; 93. a second hydrophobic line; 931. a second shut-off valve; 94. and (5) a water drain pipe.

Detailed Description

The utility model is further described below in connection with specific embodiments.

Examples

As shown in fig. 1, an industrial steam supply communication pipeline comprises a high-pressure steam mother pipeline 1, a low-pressure steam mother pipeline 2, a pressure matcher 3, a desuperheater 4, an old industrial gas pipeline 5 and an external industrial steam supply mother pipeline 6, wherein the high-pressure steam mother pipeline 1 and the low-pressure steam mother pipeline 2 are respectively connected with the pressure matcher 3 through a first butterfly valve 11 and a second butterfly valve 21, the outlet of the pressure matcher 3 is connected with the inlet pipeline of the desuperheater 4 through a third butterfly valve 7, a branch pipeline 8 is arranged on the high-pressure steam mother pipeline, and the outlet of the branch pipeline 8 is directly connected with the inlet pipeline of the desuperheater 4; the branch pipeline 8 is sequentially provided with a fourth butterfly valve 81 and a pressure reducer 82, and a fifth butterfly valve 12 is arranged between the inlet of the branch pipeline 8 of the high-pressure steam mother pipeline 1 and the pressure matcher 3. The outlet of the desuperheater 4 is sequentially connected with a temperature transmitter 41 and a pressure transmitter 42, the inlet end of the desuperheater 4 is connected with a temperature reducing water pipe 43, a regulating valve 431 is arranged on the temperature reducing water pipe 43, the temperature transmitter 41 and the pressure transmitter 42 are both provided with a PLC control device, and the PLC controller is used for controlling the regulating valve 431, a fourth butterfly valve 81 and a fifth butterfly valve 12. The outlet pipe of the pressure transmitter 42 is connected with the external industrial steam supply main pipe 6, and the old industrial gas pipe 5 is directly connected with the external industrial steam supply main pipe 6 through the connecting valve 51.

The high-pressure steam and the low-pressure steam respectively enter the pressure matcher 3 through the first butterfly valve 11 and the second butterfly valve 21, the pressure matcher 3 is a multi-channel pressure matcher 3, in the embodiment, a three-channel pressure matcher is adopted, and the lower-pressure steam can be ejected by utilizing the higher-pressure steam under the action of the pressure matcher 3, so that the steam with intermediate pressure or the steam with intermediate pressure can be utilized; the steam enters the desuperheater 4 for cooling, and the desuperheater water enters the desuperheater 4 through the regulating valve 431 so as to cool the steam; the cooled steam is communicated with the old industrial gas pipeline 5 through the pressure transmitter 42, enters the external industrial steam supply main pipe 6 and supplies steam outwards. After receiving the temperature signal, the temperature transmitter 41 feeds back to the control regulating valve 431 through the PLC controller, and sequentially changes the water flow of the temperature reducing water pipe 43 to regulate the steam temperature; after receiving the pressure signal, the pressure transmitter 42 feeds back to the fourth butterfly valve 81 and the fifth butterfly valve 12 through the PLC controller. In normal operation, the fourth butterfly valve 81 is closed, the opening of the second butterfly valve 21 is fixed, and then the opening of the fifth butterfly valve 12 is adjusted to adjust the pressure to a proper range, so that the steam with the pressure meeting the requirement can be obtained; when the fifth butterfly valve 12 is fully opened and still cannot reach proper pressure or the pressure matcher 3 fails, the fourth butterfly valve 81 is opened again, and at the moment, the industrial steam supply is ensured by reducing the high-pressure air source pressure by utilizing the pressure reducer 82, so that the maximum utilization of low-temperature steam is realized, and the energy loss generated by direct pressure reduction of high-temperature steam is reduced.

All be equipped with hydrophobic subassembly 9 on high pressure steam female pipeline 1 and the low pressure steam female pipeline 2, hydrophobic subassembly 9 includes hydrophobic pipe 91, hydrophobic pipe 91 installs on high pressure steam female pipeline 1 and low pressure steam female pipeline 2, is connected with drain pipe 94 behind the hydrophobic pipe 91 through parallelly connected first hydrophobic pipe 92 way and the hydrophobic pipeline 93 of second, installs steam trap 921 on the first hydrophobic pipeline 92, steam trap 921's entrance point and exit end all are equipped with first stop valve 922, are equipped with second stop valve 931 on the hydrophobic pipeline 92 of second. Condensed water in the pipeline is discharged through the drain pipe 91, and when the water is discharged, the first stop valve 922 is opened, the second stop valve 931 is closed, and the condensed water can be discharged through the steam trap 921 and the drain pipe 94; when the steam trap 921 fails, the two first stop valves 922 are closed, the second stop valve 931 is opened, and condensed water is discharged from the drain pipe 94 through the second stop valve 931, so that the steam trap 921 can be overhauled conveniently.

The outlet of the desuperheater 4 is provided with a pressure gauge, the outlet pipeline of the pressure transmitter 42 is provided with a safety valve 44, and the outlet of the safety valve 44 is converged with the outlet of the old industrial gas pipeline 5 after passing through a control valve and then is connected with the external industrial gas supply main pipe 6. When the gauge shows that the pressure is too high, the relief valve 44 is opened, so that part of the steam can be discharged to the atmosphere.

Claims

1. The utility model provides an industry supplies vapour communication pipeline, its characterized in that, including high pressure steam female pipeline (1), low pressure steam female pipeline (2), pressure matcher (3), desuperheater (4), old industrial gas pipeline (5) and external industry supplies vapour female pipe (6), high pressure steam female pipeline (1) with low pressure steam female pipeline (2) respectively through first butterfly valve (11) and second butterfly valve (21) with pressure matcher (3) link to each other, the export of pressure matcher (3) links to each other with the entry pipeline of desuperheater (4), be provided with branch road pipeline (8) on high pressure steam female pipeline (1), branch road pipeline (8) export through fourth butterfly valve (81) with the entry pipeline of desuperheater (4) links to each other, after desuperheater (4) export has connected gradually temperature transmitter (41) and pressure transmitter (42) with external industry supplies vapour female pipe (6), old industrial gas pipeline (5) directly link to each other with industrial gas supply female pipe (6) through industrial communication valve (51).

2. An industrial steam supply connection line according to claim 1, characterized in that the bypass line (8) is provided with a pressure reducer (82).

3. An industrial steam supply communication pipeline according to claim 1, characterized in that the outlet of the pressure matcher (3) is connected with the inlet pipeline of the desuperheater (4) through a third butterfly valve (7), and the high-pressure steam mother pipeline is provided with a fifth butterfly valve (12) between the inlet of the branch pipeline (8) and the pressure matcher (3).

4. An industrial steam supply connection pipeline according to claim 1, characterized in that the high pressure steam female pipeline (1) and the low pressure steam female pipeline (2) are provided with a water drain assembly (9).

5. An industrial steam supply communication pipeline according to claim 4, wherein the steam drain assembly (9) comprises a steam drain pipe (91), the steam drain pipe (91) is arranged on the high-pressure steam main pipeline (1) and the low-pressure steam main pipeline (2), the steam drain pipe (91) is connected with a drain pipe (94) through a first steam drain pipeline (92) and a second steam drain pipeline (93) which are connected in parallel, a steam trap (921) is arranged on the first steam drain pipe (91), a first stop valve (922) is arranged at the inlet end and the outlet end of the steam trap (921), and a second stop valve (931) is arranged on the second steam drain pipeline (93).

6. An industrial steam supply connection pipeline according to claim 1, characterized in that the inlet end of the desuperheater (4) is connected with a temperature reducing water pipe (43), and both the temperature transmitter (41) and the pressure transmitter (42) are provided with a PLC control device.

7. An industrial steam supply connection pipeline according to claim 1, characterized in that the pressure matcher (3) is a multichannel pressure matcher.

8. An industrial steam supply communication pipeline according to claim 1, wherein the outlet of the desuperheater (4) is provided with a pressure gauge, the outlet pipeline of the pressure transmitter (42) is provided with a safety valve (44), and the safety valve (44) is connected with an external industrial steam supply main pipe (6) after passing through the control valve.