Steam distributing cylinder with pressure grading function

Abstract

The utility model discloses a steam cylinder with pressure grading function belongs to cylinder technical field, specifically includes cylinder, the first baffle and second baffle are fixedly connected with the axial direction in the cylinder, the first baffle and second baffle divide the cylinder into high pressure chamber, adjusting chamber, low pressure chamber, be provided with inlet steam pipeline on high pressure chamber, still be provided with a plurality of outlet steam pipeline on high pressure chamber with low pressure chamber, the pilot type pressure regulating valve is fixedly connected in adjusting chamber, the air inlet end of pilot type pressure regulating valve is connected with the air inlet hole on the first baffle, and the air outlet end of pilot type pressure regulating valve is connected with the air outlet hole on the second baffle, the utility model discloses through the cooperation of the partition design of high pressure chamber, adjusting chamber, low pressure chamber and pilot type pressure regulating valve, can export the steam of two pressure grades of high pressure, low pressure simultaneously, adapts the demand of different steam equipment of downstream, need not extra configuration multiple cylinder, reduces equipment cost and floor space.

Description

Technical Field

[0001] This utility model belongs to the field of steam distribution cylinder technology, specifically relating to a steam distribution cylinder with pressure grading function. Background Technology

[0002] In industries such as chemical engineering, food processing, and pharmaceuticals, steam serves as an important heat energy carrier, requiring different pressure levels of steam to power various process equipment (e.g., some equipment requires high-pressure steam heating, while others require low-pressure steam insulation).

[0003] Traditional steam distributors can only distribute steam at a single pressure. To meet multiple pressure requirements, multiple distributors or independent pressure regulating devices are needed, which results in high equipment costs, large footprint, and complex pipeline connections. Therefore, a steam distributor with pressure grading function is needed to solve the above-mentioned technical problems. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a steam distributor cylinder with pressure grading function. It can simultaneously output high-pressure and low-pressure steam, adapting to the needs of different downstream steam-using equipment. This eliminates the need for multiple additional steam distributor cylinders, reducing equipment costs and floor space requirements.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a steam separator with pressure grading function, comprising a cylinder body, wherein a first partition and a second partition are fixedly connected in the cylinder body along its axial direction, the first partition and the second partition dividing the cylinder body into a high-pressure chamber, a regulating chamber and a low-pressure chamber; The high-pressure chamber is provided with a steam inlet pipe, and the high-pressure chamber and the low-pressure chamber are also provided with multiple steam outlet pipes; A pilot-operated pressure regulating valve is fixedly connected inside the regulating chamber. The air inlet of the pilot-operated pressure regulating valve is connected to the air inlet hole on the first partition, and the air outlet of the pilot-operated pressure regulating valve is connected to the air outlet hole on the second partition.

[0006] Preferably, the volume of the high-pressure chamber accounts for 40%-50% of the total volume of the cylinder; the volume of the low-pressure chamber accounts for 30%-40% of the total volume of the cylinder; and the volume of the regulating chamber accounts for 10%-20% of the total volume of the cylinder.

[0007] Preferably, a drain valve is fixedly connected to the bottom of the high-pressure chamber, the regulating chamber, and the low-pressure chamber.

[0008] Preferably, a pressure relief valve is fixedly connected inside the regulating chamber.

[0009] Preferably, pressure transmitters are fixedly connected to both the high-pressure chamber and the low-pressure chamber.

[0010] Preferably, the upper edge of the adjustment cavity is also provided with a maintenance groove, which is arranged along the axial direction of the adjustment cavity.

[0011] Preferably, a sealing mechanism is provided on the outside of the inspection slot on the cylinder body. The sealing mechanism includes a lower cover and an upper cover. The lower cover is fixedly connected to the lower edge of the cylinder body, and the upper cover is movably connected to the upper edge of the cylinder body. The lower cover and the upper cover are sleeved on the outside of the cylinder body in the form of a clamp. The two ends of the lower cover and the upper cover are connected by bolts for disassembly.

[0012] Preferably, the inner side of the upper cover is provided with a reinforcing ring that fits against the first partition and the second partition. The reinforcing ring is fixedly connected to the lower cover, and the two reinforcing rings on both sides are fixedly connected by a reinforcing rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, through the partitioned design of high-pressure chamber, regulating chamber and low-pressure chamber and the cooperation of pilot-operated pressure regulating valve, can simultaneously output steam of two pressure levels, high pressure and low pressure, to meet the needs of different downstream steam-using equipment. It eliminates the need for multiple additional steam distribution cylinders, reducing equipment costs and floor space.

[0014] 2. With the addition of a maintenance slot and a sealing mechanism, this utility model allows for the maintenance of the pilot-operated control valve without disassembling the entire cylinder body during disassembly, assembly, or maintenance, thus shortening downtime and reducing maintenance costs. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the three-dimensional exploded structure of this utility model; Figure 3 This is a schematic diagram of the main structure of this utility model; Figure 4 This is a three-dimensional exploded view of the sealing mechanism of this utility model; In the diagram: 1. Cylinder body; 2. First baffle; 3. Second baffle; 4. High-pressure chamber; 5. Regulating chamber; 6. Low-pressure chamber; 7. Steam inlet pipe; 8. Steam outlet pipe; 9. Pilot-operated regulating valve; 10. Drain valve; 11. Pressure relief valve; 12. Pressure transmitter; 13. Inspection slot; 14. Sealing mechanism; 141. Lower cover; 142. Upper cover; 143. Reinforcing ring; 144. Reinforcing rod. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1 Please see Figure 1-4 This embodiment provides the following technical solution: a steam distribution cylinder with pressure grading function, including a cylinder body 1, with a first partition 2 and a second partition 3 fixedly connected in the axial direction of the cylinder body 1. The first partition 2 and the second partition divide the cylinder body 1 into a high-pressure chamber 4, a regulating chamber 5, and a low-pressure chamber 6. A pilot-operated pressure regulating valve is fixedly connected in the regulating chamber 5. The air inlet end of the pilot-operated pressure regulating valve is connected to the air inlet hole on the first partition 2, and the air outlet end of the pilot-operated pressure regulating valve is connected to the air outlet hole on the second partition 3. Through the partition design of the high-pressure chamber 4, the regulating chamber 5, and the low-pressure chamber 6 and the cooperation of the pilot-operated pressure regulating valve, steam of two pressure levels, high pressure and low pressure, can be output simultaneously to meet the needs of different downstream steam-using equipment. There is no need to configure multiple steam distribution cylinders, reducing equipment costs and floor space.

[0018] In some embodiments, the pilot-operated pressure regulating valve is fixedly connected to the regulating chamber 5 by bolts. The air inlet of the pilot-operated pressure regulating valve is connected to the air inlet hole on the first partition 2 through a flange. A filter screen is installed in the air inlet hole to filter impurities in the steam. The air outlet of the pilot-operated pressure regulating valve is connected to the air outlet hole on the second partition 3 through a flange, so that the steam in the high-pressure chamber 4 is delivered to the low-pressure chamber 6 after pressure regulation.

[0019] Pressure transmitters 12 are fixedly connected to both the high-pressure chamber 4 and the low-pressure chamber 6. The pressure transmitters 12 are fixed to the interface by threaded connection. The pressure transmitters 12 are electrically connected to the external control system and can collect and transmit the pressure data in the chamber in real time, which is convenient for remote monitoring and abnormal alarm.

[0020] A drain valve 10 is fixedly connected to the bottom of each of the high-pressure chamber 4, the regulating chamber 5, and the low-pressure chamber 6. The drain valve 10 is fixed to the interface by a threaded connection and is used to drain the condensate in each of the high-pressure chamber 4, the regulating chamber 5, and the low-pressure chamber 6 in a timely manner to avoid water hammer.

[0021] The volume of high-pressure chamber 4 accounts for 40%-50% of the total volume of cylinder 1, the volume of low-pressure chamber 6 accounts for 30%-40% of the total volume of cylinder 1, and the volume of regulating chamber 5 accounts for 10%-20% of the total volume of cylinder 1. Through reasonable volume ratio, the steam pressure of each chamber is kept stable to meet different steam flow requirements.

[0022] The high-pressure chamber 4 is equipped with a steam inlet pipe 7, and a shut-off valve is installed on the steam inlet pipe 7 to control the input of high-pressure steam. The high-pressure chamber 4 and the low-pressure chamber 6 are also equipped with multiple steam outlet pipes 8, and each steam outlet pipe 8 is equipped with a flow control valve, which can adjust the steam output according to the needs of downstream steam-using equipment.

[0023] Example 2 The upper edge of the regulating chamber 5 is also provided with a maintenance groove 13. The maintenance groove 13 is arranged along the axial direction of the regulating chamber 5, and the length of the maintenance groove 13 is consistent with the axial length of the regulating chamber 5, which facilitates the maintenance of the pilot-operated pressure regulating valve in the regulating chamber 5.

[0024] A sealing mechanism 14 is provided on the outside of the inspection slot 13 on the cylinder body 1. The sealing mechanism 14 includes a lower cover 141 and an upper cover 142. The lower cover 141 is fixedly connected to the lower edge of the cylinder body 1, and the upper cover 142 is movably connected to the upper edge of the cylinder body 1. The lower cover 141 and the upper cover 142 are sleeved on the outside of the cylinder body 1 in the form of a clamp. The two ends of the lower cover 141 and the upper cover 142 are connected by bolts. The upper cover 142 and the lower cover 141 make it easy to keep the inspection slot 13 in an open or sealed state.

[0025] In some embodiments, a high-temperature resistant sealing gasket is attached to the inside of the top cover 142.

[0026] The inner side of the upper cover 142 is provided with a reinforcing ring 143 that fits against the first partition 2 and the second partition 3. The reinforcing ring 143 is fixedly connected to the lower cover 141. The two reinforcing rings 143 are fixedly connected to each other by a reinforcing rod 144. The reinforcing rings 143 and the reinforcing rod 144 are used to enhance the structural strength of the sealing mechanism 14, prevent the reinforcing rings 143 from deforming due to steam pressure, and further improve the stability of the first partition 2 and the second partition 3 inside the cylinder 1.

[0027] In some embodiments, the upper cover 142 is also provided with a pressure relief valve 11 interface. The pressure relief valve 11 is fixed to the interface by a flange. When the pressure in the regulating chamber 5 exceeds the preset value, the pressure relief valve 11 automatically opens to release air, protecting the cylinder body 1 and internal components.

[0028] The working principle of this utility model is as follows: the high-pressure steam generated by the external boiler system enters the high-pressure chamber 4 of the cylinder 1 through the steam inlet pipe 7; The high-pressure steam in the high-pressure chamber 4 can be directly transported to downstream industrial equipment that requires high-pressure steam through the steam outlet pipe 8; Another part of the high-pressure steam in the high-pressure chamber 4 enters the pilot-operated pressure regulating valve through the air inlet on the first partition 2; the low-pressure steam after being depressurized by the pilot-operated pressure regulating valve enters the low-pressure chamber 6 through the steam outlet on the second partition 3; the low-pressure steam in the low-pressure chamber 6 after stabilization is transported to the downstream low-pressure steam-using equipment through the steam outlet pipe 8 on its side wall. When the equipment needs to maintain or replace the internal components of the regulating chamber 5, the bolts on the upper cover 142 and the lower cover 141 need to be removed first, and the movable upper cover 142 needs to be opened. The operator can then directly access the internal components of the regulating chamber 5 through the inspection slot 13 without disassembling the entire cylinder 1. After maintenance, close the upper cover 142, tighten the bolts, and the lower cover 141 and the upper cover 142 are attached to the cylinder body 1 through a clamp-type structure. At the same time, the two reinforcing rings 143 inside the upper cover 142 are attached to the first partition 2 and the second partition 3 respectively.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A steam separator with pressure grading function, characterized in that: Includes a cylinder body (1), in which a first partition (2) and a second partition (3) are fixedly connected along its axial direction. The first partition (2) and the second partition divide the cylinder body (1) into a high-pressure chamber (4), an adjustment chamber (5), and a low-pressure chamber (6). The high-pressure chamber (4) is provided with a steam inlet pipe (7), and the high-pressure chamber (4) and the low-pressure chamber (6) are also provided with multiple steam outlet pipes (8). A pilot-operated pressure regulating valve is fixedly connected inside the regulating chamber (5). The air inlet of the pilot-operated pressure regulating valve is connected to the air inlet hole on the first partition (2), and the air outlet of the pilot-operated pressure regulating valve is connected to the air outlet hole on the second partition (3).

2. A steam separator with pressure grading function according to claim 1, characterized in that: The volume of the high-pressure chamber (4) accounts for 40%-50% of the total volume of the cylinder (1); the volume of the low-pressure chamber (6) accounts for 30%-40% of the total volume of the cylinder (1); and the volume of the regulating chamber (5) accounts for 10%-20% of the volume of the cylinder (1).

3. A steam separator with pressure grading function according to claim 1, characterized in that: The bottom of the high-pressure chamber (4), the regulating chamber (5) and the low-pressure chamber (6) are all fixedly connected with a drain valve (10).

4. A steam separator with pressure grading function according to claim 1, characterized in that: Therefore, a pressure relief valve (11) is fixedly connected inside the regulating chamber (5).

5. A steam separator with pressure grading function according to claim 1, characterized in that: Pressure transmitters (12) are fixedly connected to both the high-pressure chamber (4) and the low-pressure chamber (6).

6. A steam separator with pressure grading function according to claim 1, characterized in that: The upper edge of the adjustment cavity (5) is also provided with a maintenance groove (13), which is arranged along the axial direction of the adjustment cavity (5).

7. A steam separator with pressure grading function according to claim 6, characterized in that: A sealing mechanism (14) is provided on the cylinder body (1) outside the inspection groove (13). The sealing mechanism (14) includes a lower cover (141) and an upper cover (142). The lower cover (141) is fixedly connected to the lower edge of the cylinder body (1), and the upper cover (142) is movably connected to the upper edge of the cylinder body (1). The lower cover (141) and the upper cover (142) are fitted onto the outside of the cylinder body (1) in the form of a clamp. The two ends of the lower cover (141) and the upper cover (142) are connected by bolts.

8. A steam separator with pressure grading function according to claim 7, characterized in that: The inner side of the upper cover (142) is provided with a reinforcing ring (143) that fits against the first partition (2) and the second partition (3). The reinforcing ring (143) is fixedly connected to the lower cover (141), and the two reinforcing rings (143) are fixedly connected to each other by a reinforcing rod (144).

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