Integrated pry of horizontal water jacket heater

Abstract

The utility model discloses an integrated pry of a horizontal water jacket heating furnace, which relates to the technical field of natural gas ground equipment and comprises a water jacket heating furnace, a burner and a gas pressure reducing pipeline, a gas inlet and a main gas outlet are arranged at one end of the water jacket heating furnace, and the burner is mounted at the other end of the water jacket heating furnace. The water jacket heating furnace is horizontally arranged on the skid-mounted base, a jacket body is provided with a branch gas outlet for outputting fuel gas, one end of the fuel gas pressure reducing pipeline is connected with the branch gas outlet, the other end of the fuel gas pressure reducing pipeline is connected with the combustor, and other connecting pipelines are all integrated on the skid-mounted base. By means of safe, reliable and reasonable design and arrangement of the pressure reducing pipeline for the combustor, the whole skid-mounted integrated level is higher, and maintenance is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas ground equipment, in particular to a natural gas heating device, and more specifically to an integrated skid of a horizontal water jacket heating furnace. Background Art

[0002] According to the fact that natural gas wells in various oil and gas fields basically adopt the exhaustion-type exploitation method, gas wells will face well closure after several years of development. The heating equipment and related supporting facilities used at the wellhead of gas wells cannot be reused, resulting in a waste of investment. For the new production capacity blocks explored and developed, trial production and operation are required to provide effective data for large-scale exploitation of the production capacity blocks, which becomes the most powerful guarantee for effective development. The trial production time varies from 1 to 3 years. The construction time of a set of conventional gas wellhead heating furnace equipment and related supporting facilities is about 5 months, and the overall relocation cannot be carried out after the trial production task is completed. At present, the wellhead heating furnaces of various oil and gas fields usually adopt newly built brick-concrete heating furnace rooms, and are equipped with electrical and instrumentation. After the equipment is relocated, the heating furnace room is basically abandoned, and the relevant heating furnace equipment and supporting facilities need to be disassembled and transported to the new use area, and reassembled and put into use. However, because various components are often damaged after one installation and disassembly, they need to be repurchased, resulting in a long time for re-use.

[0003] The patent document with publication number CN203097825U in the prior art provides a skid-mounted device for a natural gas wellhead heating furnace, in which a natural gas wellhead heating furnace is fixedly mounted on a skid base, an integrated pressure regulating device is installed on the natural gas wellhead heating furnace, an operation room is fixed on the skid base on the left side of the natural gas wellhead heating furnace, and process control pipelines connected to the natural gas wellhead heating furnace and the integrated pressure regulating device are arranged in the operation room. However, the gas pressure-reducing pipeline of the process control pipeline uses pressure reduction and heating interspersed for multiple times, which is not efficient, and also causes the gas pressure-reducing pipeline to be distributed non-centrally on the heating furnace, which is not completely integrated and has a complicated layout. Utility Model Content

[0004] In order to overcome the defects existing in the above-mentioned prior art, the purpose of the utility model is to provide an integrated skid for a horizontal water jacket heating furnace, which is safer, more reliable and reasonably designed with a gas pressure reduction pipeline, improves the pressure reduction efficiency and has a higher degree of integration, simple layout and more convenient maintenance.

[0005] In order to achieve the above objectives, the technical solution adopted by the utility model is:

[0006] An integrated skid for a horizontal water jacket heating furnace comprises a water jacket heating furnace horizontally arranged on a bottom skid, wherein a main gas outlet and a gas inlet are arranged at one end of the water jacket heating furnace, and a burner is installed at the other end. The invention is characterized in that: it also comprises a gas pressure reducing pipeline arranged close to the water jacket heating furnace body, wherein one end of the gas pressure reducing pipeline is connected to the gas outlet arranged on the water jacket heating furnace body, and the other end is connected to the burner.

[0007] Furthermore, the pressure-reducing pipeline is sequentially provided with a metering section, a first-level pressure regulating section, a safety section and a second-level pressure regulating section; the metering section is sequentially provided with a gate valve, a pressure gauge, a thermometer, a filter and a flow meter; the first-level pressure regulating section is sequentially provided with a gate valve, a gas shut-off valve, a pressure regulating valve, a pressure gauge, a pressure regulating valve and a gate valve; the safety section includes a safety valve and a throttling cut-off vent valve; the second-level pressure regulating section includes a gate valve, a pressure regulating valve, a gate valve, a pressure gauge and a pressure transmitter.

[0008] Furthermore, a bypass pipeline I connected in parallel with the primary pressure regulating section is provided between the metering section and the safety section, and a gate valve and a double-acting throttling stop valve are provided on the bypass pipeline I along the fluid flow direction.

[0009] Furthermore, a bypass pipeline II connected in parallel with the secondary pressure regulating section is arranged between the safety section and the burner, and a gate valve and a double-acting throttling stop valve are arranged along the fluid flow direction of the bypass pipeline II.

[0010] Furthermore, the water jacket heating furnace body is also provided with a maintenance platform, and the maintenance platform is provided with an escalator and a guardrail.

[0011] Furthermore, the main air outlet is provided with a pressure transmitter and a temperature transmitter.

[0012] Furthermore, an instrument control box is arranged on the bottom skid.

[0013] Furthermore, the water jacket heating furnace is provided with a thermometer and a liquid level gauge.

[0014] Furthermore, a drainage pipeline is provided at the bottom of the water jacket heating furnace.

[0015] Furthermore, the burner is factory-equipped with a fuel pipeline, and the gas pressure-reducing pipeline is connected to the fuel pipeline.

[0016] Beneficial effects of the utility model:

[0017] 1. Compared with the prior art, the present application designs a gas pressure-reducing pipeline with continuous multi-stage pressure regulation, which improves work efficiency. The gas pressure-reducing pipeline is installed close to the water jacket heating furnace body, which has higher integration, simple layout, and makes maintenance more convenient.

[0018] 2. In the utility model, the multi-stage pressure reducing sections are all provided with bypass pipelines. When the pressure regulating section is repaired, the pressure regulation does not need to be suspended, and the heating operation is not affected, which is more economical. The first-stage pressure regulating section is provided with a gas shut-off valve, which plays an overpressure cut-off role and is a safety protection device. A safety section composed of a safety valve and a vent valve is provided between the two-stage pressure regulating sections, which effectively guarantees the safety of the pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the front view of the utility model;

[0020] Figure 2 It is a top view of the utility model;

[0021] Figure 3 It is a side view of the utility model;

[0022] Reference numerals:

[0023] 1. Burner; 2. Water jacket heating furnace; 3. Air inlet; 4. Air outlet; 5. Air outlet; 6. Pressure gauge; 7. Thermometer; 8. Filter; 9. Flow meter; 10. Gate valve; 11. Gas shut-off valve; 12. Gas pressure regulating valve; 13. Safety valve; 14. Throttle stop and vent valve; 15. Maintenance platform; 16. Pressure transmitter; 17. Temperature transmitter; 18. Double-acting throttle stop valve; 19. Instrument control box; 20. Liquid level gauge; 21. Drain pipeline; 22. Fuel pipeline. DETAILED DESCRIPTION

[0024] The following will combine the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the utility model, so as to fully understand the purpose, characteristics and effects of the utility model. The integrated skid of a horizontal water jacket heating furnace provided in this application mainly provides an overall skid installation of a water jacket heating furnace equipped with a pressure reduction pipeline for a burner. The water jacket heating furnace 2 is a commonly used device in the field, and its internal structure and working principle are prior art. The water jacket heating furnace 2 itself is not described here.

[0025] Example 1

[0026] like Figure 1~Figure 3As shown, it includes a water jacket heating furnace 2 and a burner 1. One end of the water jacket heating furnace 2 is a main gas outlet 4 and an air inlet 3, and the other end is equipped with a burner 1. It also includes a bottom skid and a gas pressure reducing pipeline. The water jacket heating furnace 2 is horizontally arranged on the bottom skid, and the jacket body is provided with a branch gas outlet 5 to output fuel gas. A heating coil is arranged in the heating furnace. After the natural gas to be heated is heated by the heating coil, the main gas outlet and the branch gas outlet are respectively connected. The gas pressure reducing pipeline adopts a two-stage pressure regulation, one end of which is connected to the outlet gas outlet 5, and the other end is connected to the burner 1. The pipelines are integrated on the skid. The gas pressure reducing pipeline designed in this application is installed close to the water jacket heating furnace 2, with a higher degree of integration and a simple layout, making maintenance convenient.

[0027] As an implementation mode of this embodiment, the gas pressure reducing pipeline is sequentially provided with a metering section, a primary pressure regulating section, a safety section and a secondary pressure regulating section. The metering section is sequentially provided with a gate valve 10, a pressure gauge 6, a thermometer 7, a filter 8 and a flow meter 9. The primary pressure regulating section is sequentially provided with a gate valve 10, a gas shut-off valve 11, a pressure regulating valve 12, a pressure gauge 6, a pressure regulating valve 12 and a gate valve 10. The safety section includes a safety valve 13 and a throttling cut-off vent valve 14. The secondary pressure regulating section includes a gate valve 10, a pressure regulating valve 12 and a gate valve 10. The primary pressure regulating section is provided with a gas shut-off valve 11, which plays an overpressure cut-off role and is a safety protection device. A safety section consisting of a safety valve 12 and a vent valve 14 is provided between the two-stage pressure regulating sections to effectively protect the safety of the pipeline. Through two-stage rapid pressure reduction, the pressure reduction efficiency of natural gas used for gas can be improved.

[0028] A bypass pipeline I connected in parallel with the primary pressure regulating section is provided between the metering section and the safety section, and a gate valve 10 and a double-acting throttling stop valve 18 are provided on the bypass pipeline I along the fluid flow direction. A bypass pipeline II connected in parallel with the secondary pressure regulating section is provided between the safety section and the burner 1, and a gate valve 10 and a double-acting throttling stop valve 18 are provided on the bypass pipeline II along the fluid flow direction. The two-stage pressure reducing sections are both provided with bypass pipelines, so that the pressure regulating section can be maintained without suspending the pressure regulating, and the heating operation is not affected, which is more economical.

[0029] As an implementation mode of this embodiment, the water jacket heating furnace body is also provided with a water injection port and a maintenance platform 15. The maintenance platform 15 is provided with a climbing escalator and a guardrail to ensure safety. When the water jacket heating furnace 2 is maintained, water should be filled first to ensure safety, and then the maintenance personnel climb onto the maintenance platform 15.

[0030] As an implementation method of this embodiment, a drainage pipeline 21 is arranged at the bottom of the water jacket furnace body, and a valve sleeve type sewage valve is installed at the valve port.

[0031] As an implementation method of this embodiment, it should be known that the fuel pipeline 22 is designed by the manufacturer of the burner 1, and one end of the fuel pressure reduction pipeline is connected to the fuel pipeline 22, and the other end is connected to the exhaust port 5. This is an existing well-known technology, provided and guided by the supplier.

[0032] Example 2

[0033] This embodiment is further described on the basis of embodiment 1. Figure 1~Figure 3 As shown,

[0034] As an implementation method of this embodiment, the secondary pressure regulating section is also provided with a pressure gauge 6 and a pressure transmitter 16, and the main gas outlet 4 is provided with a pressure transmitter 16 and a temperature transmitter 17, etc., to monitor the pressure and temperature of the medium at the gas outlet and upload it to the station control system, and the water jacket heating furnace 2 is provided with a thermometer and a liquid level gauge 20. The liquid level gauge adopts a direct display liquid level gauge, which can conveniently and intuitively see the liquid level situation. The thermometer set at the smoke flushing can detect the temperature of the smoke outlet, and the thermometer set on the jacket can detect the water temperature. The liquid level gauge 20 is used to detect whether the water level is normal, and whether to add water or drain liquid. The data collected by the pressure transmitter 16 and the temperature transmitter 17 are used to control the burner to ensure that the heated natural gas is kept within a certain range. The above instruments are all electrically connected to the instrument control box arranged on the bottom skid.

[0035] In order to better understand the present utility model, the following is a complete description of the working principle of the present utility model: The operation process of the water jacket heating furnace is divided into two parts, one part is the heated natural gas pipeline, and the other part is the natural gas pipeline part for the burner. The main equipment is the water jacket heating furnace 2, and the water jacket heating furnace 2 is provided with a thermometer. The thermometer installed on the smoke flush is used to detect the temperature of the smoke exhaust port, and the thermometer installed on the body of the water jacket heating furnace 2 is used to detect the water temperature in the water jacket heating furnace 2. The natural gas for the burner is taken from the heating natural gas pipeline. The natural gas enters the water jacket heating furnace 2 from the heated natural gas inlet 3. The inlet 3 is provided with a series of detection devices such as thermometers, pressure gauges, and temperature measuring rings for detecting various parameters of the imported natural gas. The water jacket heating furnace 2 is responsible for heating the natural gas pipeline, thereby heating the natural gas. The heated natural gas is discharged from the main gas outlet 4 of the heated natural gas. The main gas outlet 4 of the heated natural gas is provided with a thermometer, a pressure gauge, a temperature measuring ring, a pressure transmitter 17, and a temperature transmitter 18 to detect a series of parameters. The collected data of the temperature transmitter 18 is used to control the burner 1 on the water jacket furnace to ensure that the temperature of the natural gas is heated within a certain range. The water jacket heating furnace 2 uses the burner 1 to burn natural gas and heat the water in the water jacket furnace. The heated natural gas pipeline is immersed in water. The water jacket heating furnace is a heating device well known to the staff in this technical field. The working principle is well known to those skilled in the art. A liquid level gauge is provided on the water jacket furnace to observe whether the liquid level is normal. The natural gas for the burner taken from the heating natural gas pipeline enters the pressure-reducing pipeline for the burner through the branch gas outlet 5, first passes through the metering section, and enters the filter 8 through the gate valve 10 to purify the natural gas for the burner. Enter the intelligent swirl flowmeter 9 to measure the natural gas; then enter the first-level pressure regulation section, enter the gate valve 10 before the pressure regulation, enter the pressure regulation through the gas shut-off valve 11, and adjust the pressure through two consecutive gas pressure regulators 12. The gas shut-off valve 11 plays the role of overpressure cut-off of the pressure regulator outlet pressure, which is a safety protection device. A bypass is set in this pressure regulation section. The bypass gate valve 10 plays a switch role. The double-acting throttling stop valve 18 is manually adjusted during the maintenance of the pressure regulation line. The natural gas for the burner enters the safety section after the gate valve 10. A safety valve 13 and a vent valve 14 are set between the two gate valves 10 to ensure that the natural gas will not be over-pressurized. Then enter the second-level pressure regulation section. The natural gas enters the fuel pipeline 22 of the burner 1 through the gate valve 10, the gas pressure regulating valve 12 and the gate valve 10 in sequence. A pressure gauge 6 and a pressure transmitter 16 are set after the gate valve 10 to monitor the pressure of the natural gas entering the burner 1. A bypass gate valve 10 and a double-acting throttling stop valve 18 are also provided in the secondary pressure regulating section. The bypass gate valve 10 serves as a switch, and the double-acting throttling stop valve 18 is used for manual pressure regulation when the pressure regulating line is maintained.

[0036] The implementation methods of the present invention are described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalents or substitutions are all included in the scope defined by the claims of the present invention.

Claims

1. An integrated skid for a horizontal water jacket heating furnace, comprising a water jacket heating furnace (2) horizontally arranged on a bottom skid, wherein an air inlet (3) and a main air outlet (4) are arranged at one end of the water jacket heating furnace (2), and a burner (1) is installed at the other end, characterized in that: It also comprises a gas pressure reducing pipeline installed closely to the jacket of the water jacket heating furnace (2), one end of the gas pressure reducing pipeline being connected to a gas outlet (5) provided on the jacket of the water jacket heating furnace (2), and the other end being connected to the burner (1).

2. The integrated skid of a horizontal water jacket heating furnace according to claim 1, characterized in that: The gas pressure-reducing pipeline comprises a metering section, a primary pressure-regulating section, a safety section and a secondary pressure-regulating section which are arranged in sequence along the flow direction of the fluid. The metering section is provided with a gate valve (10), a pressure gauge (6), a thermometer (7), a filter (8) and a flow meter (9) in sequence along the flow direction of the fluid. The primary pressure-regulating section is provided with a gate valve (10), a gas shut-off valve (11), a pressure-regulating valve (12), a pressure gauge (6), a pressure-regulating valve (12) and a gate valve (10) in sequence along the flow direction of the fluid. The safety section is provided with a safety valve (13) and a throttling stop vent valve (14) in sequence along the flow direction of the fluid. The secondary pressure-regulating section is provided with a gate valve (10), a pressure-regulating valve (12), a gate valve (10), a pressure gauge (6) and a pressure transmitter (16) in sequence along the flow direction of the fluid.

3. The integrated skid of a horizontal water jacket heating furnace according to claim 2, characterized in that: A bypass pipeline I connected in parallel with the primary pressure regulating section is provided between the metering section and the safety section. A gate valve (10) and a double-acting throttling stop valve (18) are provided on the bypass pipeline I along the flow direction of the fluid.

4. The integrated skid of a horizontal water jacket heating furnace according to claim 3, characterized in that: A bypass pipeline II connected in parallel with the secondary pressure regulating section is provided between the safety section and the burner, and a gate valve (10) and a double-acting throttling stop valve (18) are provided on the bypass pipeline II along the flow direction of the fluid.

5. The integrated skid of a horizontal water jacket heating furnace according to claim 1, characterized in that: A maintenance platform (15) is also provided on the top of the water jacket heating furnace (2), and the maintenance platform (15) is provided with an escalator and a guardrail.

6. The integrated skid of a horizontal water jacket heating furnace according to claim 1, characterized in that: The main air outlet (4) is provided with a pressure transmitter (16) and a temperature transmitter (17).

7. The integrated skid of a horizontal water jacket heating furnace according to claim 1, characterized in that: An instrument control box (19) is arranged on the bottom skid.

8. The integrated skid of a horizontal water jacket heating furnace according to claim 1, characterized in that: The water jacket heating furnace (2) is provided with a thermometer and a liquid level gauge (20).

9. The integrated skid of a horizontal water jacket heating furnace according to claim 1, characterized in that: The bottom of the water jacket heating furnace (2) is connected to a liquid discharge pipeline (21).

10. The integrated skid of a horizontal water jacket heating furnace according to claim 1, characterized in that: The burner (1) is factory-equipped with a fuel pipeline (22), and the gas pressure-reducing pipeline is connected to the fuel pipeline (22).

Images