Adjusting mechanism for mechanical seal flushing nozzle of anti-blocking pressure-isolating heat exchange station

Abstract

The utility model relates to the field of heat exchange station mechanical seal flushing, and discloses an anti-blocking pressure-isolating heat exchange station mechanical seal flushing nozzle adjusting mechanism which comprises a heat exchanger, an adjusting mechanism and a lifting mechanism are arranged on the right side of the heat exchanger, the adjusting mechanism comprises a supporting seat, and the supporting seat is arranged on the right side of the heat exchanger. A circulating pump is fixedly connected to the top of the supporting seat, a conveying block is slidably connected to the inner wall of the circulating pump, a liquid outlet spray head is fixedly connected to the top of the right end of the conveying block, a corrugated telescopic pipe is fixedly connected to the top of the left end of the conveying block, and an adjusting cylinder is fixedly connected to the top of the circulating pump. According to the utility model, through the arrangement of the adjusting mechanism, the flow of the flushing liquid can be accurately adjusted, when the mechanical seal is slightly abraded, only the flushing liquid with smaller flow can meet the flushing requirement and avoid the waste of the flushing liquid, and when the mechanical seal is seriously abraded, the flow can be increased, and the flushing effect can be ensured, so that the adaptability and the reliability of equipment are improved.

Description

A mechanism for adjusting the flushing nozzle of the mechanical seal in an anti-clogging pressure-isolation heat exchange station. Technical Field

[0001] This utility model relates to the field of mechanical seal flushing in heat exchange stations, and in particular to an anti-clogging pressure-isolation heat exchange station mechanical seal flushing nozzle adjustment mechanism. Background Technology

[0002] Mechanical seal flushing in a pressure-reducing heat exchange station refers to the cleaning and maintenance of the mechanical seals of equipment such as circulating pumps in a pressure-reducing heat exchange station.

[0003] Mechanical seals are crucial components for ensuring the sealing performance of equipment such as circulating pumps. During equipment operation, mechanical seals experience wear and dirt accumulation due to friction, media erosion, and other factors, affecting their sealing performance. Mechanical seal flushing in pressure-dip heat exchange stations involves a specific flushing system that delivers clean flushing fluid to the mechanical seal. The flow of the flushing fluid removes impurities, particles, and dirt from the mechanical seal surface, achieving cleaning, cooling, and lubrication. This reduces the operating temperature of the mechanical seal, minimizes wear, prevents leakage, extends the service life of the mechanical seal, ensures the normal operation of equipment such as circulating pumps, and maintains the stable operation of the pressure-dip heat exchange station.

[0004] During the operation of a pressure-reducing heat exchange station, the mechanical seal of the circulating pump is a key component ensuring the normal operation of the equipment. Its sealing performance and service life directly affect the stable operation of the system. When the mechanical seal wears to varying degrees, a fixed flow rate of flushing fluid is used for flushing. This results in excessive flushing fluid flow when the mechanical seal wears only slightly, leading to waste and increased operating costs. Conversely, when the mechanical seal wears severely, the fixed small flow rate of flushing fluid cannot meet the cleaning requirements, resulting in poor flushing effect. Consequently, the mechanical seal suffers increased wear and a shortened service life due to ineffective flushing. To address these issues, an anti-clogging mechanical seal flushing nozzle adjustment mechanism for pressure-reducing heat exchange stations is proposed. Summary of the Invention

[0005] To overcome the above deficiencies, this utility model provides an anti-clogging pressure-isolated heat exchange station mechanical seal flushing nozzle adjustment mechanism, which aims to solve the problem in the prior art that it is difficult to flexibly adjust the flushing fluid flow rate according to the wear degree of the mechanical seal during the flushing of some pressure-isolated heat exchange stations.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a clogging-proof pressure-isolation heat exchange station mechanical seal flushing nozzle adjustment mechanism, including a heat exchanger, an adjustment mechanism and a lifting mechanism are provided on the right side of the heat exchanger, the adjustment mechanism includes a support base, the support base is provided on the right side of the heat exchanger, a circulating pump is fixedly connected to the top of the support base, a conveying block is slidably connected to the inner wall of the circulating pump, a liquid outlet nozzle is fixedly connected to the top of the right end of the conveying block, a corrugated telescopic pipe is fixedly connected to the top of the left end of the conveying block, an adjustment cylinder is fixedly connected to the top of the circulating pump, a flow adjustment block is rotatably connected to the inner wall of the adjustment cylinder, a flow through hole is opened on the inner wall of the flow adjustment block, a connection through hole is opened at the top and bottom of the adjustment cylinder, and the bottom of the adjustment cylinder is fixedly connected to the top of the corrugated telescopic pipe.

[0007] As a further description of the above technical solution:

[0008] The adjustment mechanism also includes a motor, the bottom of which is fixedly connected to the outer wall of the adjustment cylinder.

[0009] As a further description of the above technical solution:

[0010] The adjustment mechanism also includes a gear, the outer wall of which is rotatably connected to the inner wall of the adjustment cylinder, and the inner wall of the gear is fixedly connected to the bottom end of the motor output shaft.

[0011] As a further description of the above technical solution:

[0012] The regulating mechanism also includes a second gear, the inner wall of which is fixedly connected to the inner wall of the flow regulating block, and the outer wall of the second gear meshing with the outer wall of the first gear.

[0013] As a further description of the above technical solution:

[0014] The adjustment mechanism also includes a liquid inlet pipe, the bottom end of which is fixedly connected to the top of the adjustment cylinder.

[0015] As a further description of the above technical solution:

[0016] The adjustment mechanism also includes an interception mesh plate, the outer wall of which is fixedly connected to the inner wall of the liquid outlet nozzle.

[0017] As a further description of the above technical solution:

[0018] The lifting mechanism includes a hydraulic rod, the bottom of which is fixedly connected to the top of the circulating pump.

[0019] As a further description of the above technical solution:

[0020] The lifting mechanism also includes a connecting block, the side wall of which is fixedly connected to the side wall of the conveying block, and the top of the connecting block is fixedly connected to the bottom end of the inner rod of the hydraulic rod.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting an adjustment mechanism, the flow rate of the flushing fluid can be precisely adjusted. When the mechanical seal is slightly worn, only a small flow rate of flushing fluid is needed to meet the flushing requirements, avoiding waste of flushing fluid. When the mechanical seal is severely worn, the flow rate can be increased to ensure the flushing effect, thereby improving the adaptability and reliability of the equipment.

[0023] 2. In this utility model, by setting up a lifting mechanism, the liquid outlet nozzle can be flushed at a closer distance, thereby increasing the flushing pressure and impact force to ensure effective removal of dirt and impurities. It can also appropriately increase the distance between the liquid outlet nozzle and the mechanical seal, which can achieve the purpose of cleaning while avoiding unnecessary damage to the mechanical seal caused by excessive flushing. Attached Figure Description

[0024] Figure 1 is a front view schematic diagram of the adjusting mechanism for the mechanical seal flushing nozzle of an anti-clogging pressure-isolation heat exchange station proposed in this utility model;

[0025] Figure 2 is a schematic diagram of the circulating pump structure of the anti-clogging pressure-isolation heat exchange station mechanical seal flushing nozzle adjustment mechanism proposed in this utility model;

[0026] Figure 3 is a top view cross-sectional view of the circulating pump structure of the anti-clogging pressure-isolation heat exchange station mechanical seal flushing nozzle adjustment mechanism proposed in this utility model;

[0027] Figure 4 is a schematic cross-sectional view of the adjusting cylinder of the adjusting mechanism for the anti-clogging pressure-isolation heat exchange station mechanical seal flushing nozzle proposed in this utility model;

[0028] Figure 5 is a schematic diagram of the flow regulating block structure of the anti-clogging pressure-isolation heat exchange station mechanical seal flushing nozzle regulating mechanism proposed in this utility model;

[0029] Figure 6 is a front view cross-sectional view of the circulating pump structure of the anti-clogging pressure-isolation heat exchange station mechanical seal flushing nozzle adjustment mechanism proposed in this utility model.

[0030] Legend:

[0031] 1. Heat exchanger; 2. Adjustment mechanism; 211. Support base; 212. Circulating pump; 213. Conveying block; 214. Liquid outlet nozzle; 215. Corrugated telescopic pipe; 216. Adjustment cylinder; 217. Flow regulating block; 218. Flow through hole; 219. Connection through hole; 220. Motor; 221. Gear one; 222. Gear two; 223. Liquid inlet pipe; 224. Interceptor plate; 3. Lifting mechanism; 311. Hydraulic rod; 312. Connecting block. Detailed Implementation

[0032] 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.

[0033] Referring to Figures 3, 4, and 6, the embodiment provided by this utility model is as follows: A purifying nozzle adjustment mechanism for a mechanical seal flushing system in an anti-clogging pressure-isolating heat exchange station includes a heat exchanger 1. An adjustment mechanism 2 and a lifting mechanism 3 are arranged on the right side of the heat exchanger 1. The adjustment mechanism 2 includes a support base 211, which is located on the right side of the heat exchanger 1 and supports a circulating pump 212. The circulating pump 212 is fixedly connected to the top of the support base 211 and is used to transport hot water to the heat exchanger 1 for heat exchange. A conveying block 213 is slidably connected to the inner wall of the circulating pump 212 and is used to convey flushing fluid. A liquid outlet nozzle 214 is fixedly connected to the top right end of the conveying block 213 and is used to spray flushing fluid to flush the mechanical seal inside the circulating pump 212. A corrugated telescopic tube 215 is fixedly connected to the top of the left end of the 13. The corrugated telescopic tube 215 is used to connect the regulating cylinder 216 and the conveying block 213 and to convey the flushing fluid. The top of the circulating pump 212 is fixedly connected to the regulating cylinder 216. The regulating cylinder 216 is used to install the flow regulating block 217 and to regulate the flow rate of the flushing fluid. The flow regulating block 217 is rotatably connected to the inner wall of the regulating cylinder 216. The flow regulating block 217 is used to regulate the flow rate of the flushing fluid. The inner wall of the flow regulating block 217 is provided with a flow through hole 218, which is used to allow the flushing fluid to pass through. The top and bottom of the regulating cylinder 216 are provided with connecting through holes 219, which are used to allow the flushing fluid to pass through and cooperate with the flow through holes 218 to regulate the flow rate. The bottom of the regulating cylinder 216 is fixedly connected to the top of the corrugated telescopic tube 215.

[0034] Referring to Figures 1, 2, and 5, the regulating mechanism 2 further includes a motor 220. The bottom of the motor 220 is fixedly connected to the outer wall of the regulating cylinder 216. The motor 220 drives gear 221 to rotate, thereby regulating the flow rate. The regulating mechanism 2 also includes gear 221, the outer wall of which is rotatably connected to the inner wall of the regulating cylinder 216. The inner wall of gear 221 is fixedly connected to the bottom end of the output shaft of the motor 220. Gear 221 is used to transmit power from the motor 220. The regulating mechanism 2 also includes gear 222, the inner wall of which is fixedly connected to the inner wall of the flow regulating block 217. The outer wall of gear 222 meshes with the outer wall of gear 221. Gear 222 rotates under the drive of gear 221 and causes flow regulating block 217 to rotate. Regulating mechanism 2 also includes inlet pipe 223, the bottom end of which is fixedly connected to the top of regulating cylinder 216. Inlet pipe 223 is used to transport flushing fluid into regulating cylinder 216. Regulating mechanism 2 also includes interceptor mesh plate 224, the outer wall of which is fixedly connected to the inner wall of outlet nozzle 214. Interceptor mesh plate 224 is used to prevent impurities flushed from the mechanical seal from clogging outlet nozzle 214.

[0035] Referring to Figure 6, the lifting mechanism 3 includes a hydraulic rod 311. The bottom of the hydraulic rod 311 is fixedly connected to the top of the circulating pump 212. The hydraulic rod 311 is used to drive the connecting block 312 to rise or fall to adjust the distance between the liquid outlet nozzle 214 and the mechanical seal. The lifting mechanism 3 also includes a connecting block 312. The side wall of the connecting block 312 is fixedly connected to the side wall of the conveying block 213. The top of the connecting block 312 is fixedly connected to the bottom end of the inner rod of the hydraulic rod 311. The connecting block 312 is used to connect the hydraulic rod 311 and the conveying block 213 and transmit power.

[0036] Working principle: Hot water is transported to heat exchanger 1 through circulating pump 212 for heat exchange. When it is necessary to flush the mechanical seal inside the circulating pump 212, the flushing fluid can enter through inlet pipe 223, and then be transported to the inside of corrugated expansion pipe 215 through connecting through hole 219 on regulating cylinder 216 and flow through hole 218 on flow regulating block 217. Then it is transported to the inside of conveying block 213, and finally sprayed out through outlet nozzle 214, thereby flushing the mechanical seal inside the circulating pump 212. The intercepting mesh plate 224 can prevent impurities flushed from the mechanical seal from clogging the outlet nozzle 214.

[0037] When it is necessary to adjust the flow rate of the flushing fluid, the motor 220 is started, causing the output shaft of the motor 220 to drive the gear 221 fixedly connected to the outer wall to rotate. This, in turn, drives the gear 222 meshing with the outer wall of the gear 221 to rotate. This causes the flow regulating block 217 fixedly connected to the inner wall of the gear 222 to rotate by a specified rotation angle, so that the six flow through holes 218 and the six connecting through holes 219 completely overlap, thereby increasing the flow rate. Conversely, by operating in the opposite direction, three flow through holes 218 can completely overlap with three of the connecting through holes 219, and the remaining three connecting through holes 219 can be sealed by the flow regulating block 217, thereby decreasing the flow rate.

[0038] When it is necessary to adjust the distance between the liquid outlet nozzle 214 and the mechanical seal on the inner wall of the circulating pump 212, the hydraulic rod 311 is activated, causing the inner rod of the hydraulic rod 311 to retract the connecting block 312. The connecting block 312 then causes the conveying block 213 fixedly connected to the outer wall to rise, thereby adjusting the distance between the liquid outlet nozzle 214 and the mechanical seal on the inner wall of the circulating pump 212 according to the cleaning requirements.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mechanism for adjusting the flushing nozzle of a mechanical seal in an anti-clogging pressure-isolating heat exchange station, comprising a heat exchanger (1), characterized in that: The heat exchanger (1) is provided with an adjustment mechanism (2) and a lifting mechanism (3) on the right side; the adjustment mechanism (2) includes a support base (211), the support base (211) is provided on the right side of the heat exchanger (1), a circulation pump (212) is fixedly connected to the top of the support base (211), a conveying block (213) is slidably connected to the inner wall of the circulation pump (212), a liquid outlet nozzle (214) is fixedly connected to the top of the right end of the conveying block (213), a corrugated telescopic pipe (215) is fixedly connected to the top of the left end of the conveying block (213), an adjustment cylinder (216) is fixedly connected to the top of the circulation pump (212), a flow adjustment block (217) is rotatably connected to the inner wall of the adjustment cylinder (216), a flow through hole (218) is opened on the inner wall of the flow adjustment block (217), a connection through hole (219) is opened at the top and bottom of the adjustment cylinder (216), and the bottom of the adjustment cylinder (216) is fixedly connected to the top of the corrugated telescopic pipe (215).

2. The anti-clogging pressure-isolation heat exchange station mechanical seal flushing nozzle adjustment mechanism according to claim 1, characterized in that: The adjustment mechanism (2) also includes a motor (220), the bottom of which is fixedly connected to the outer wall of the adjustment cylinder (216).

3. The anti-clogging pressure-isolating heat exchange station mechanical seal flushing nozzle adjustment mechanism according to claim 1, characterized in that: The adjustment mechanism (2) also includes a gear (221), the outer wall of which is rotatably connected to the inner wall of the adjustment cylinder (216), and the inner wall of which is fixedly connected to the bottom end of the output shaft of the motor (220).

4. The anti-clogging pressure-isolation heat exchange station mechanical seal flushing nozzle adjustment mechanism according to claim 1, characterized in that: The regulating mechanism (2) also includes a second gear (222), the inner wall of which is fixedly connected to the inner wall of the flow regulating block (217), and the outer wall of the second gear (222) meshes with the outer wall of the first gear (221).

5. The anti-clogging pressure-isolating heat exchange station mechanical seal flushing nozzle adjustment mechanism according to claim 1, characterized in that: The regulating mechanism (2) also includes an inlet pipe (223), the bottom end of which is fixedly connected to the top end of the regulating cylinder (216).

6. The anti-clogging pressure-isolating heat exchange station mechanical seal flushing nozzle adjustment mechanism according to claim 1, characterized in that: The adjustment mechanism (2) also includes an interception mesh plate (224), the outer wall of which is fixedly connected to the inner wall of the liquid outlet nozzle (214).

7. The anti-clogging pressure-isolation heat exchange station mechanical seal flushing nozzle adjustment mechanism according to claim 1, characterized in that: The lifting mechanism (3) includes a hydraulic rod (311), the bottom of which is fixedly connected to the top of the circulating pump (212).

8. The anti-clogging pressure-isolating heat exchange station mechanical seal flushing nozzle adjustment mechanism according to claim 1, characterized in that: The lifting mechanism (3) also includes a connecting block (312), the side wall of the connecting block (312) is fixedly connected to the side wall of the conveying block (213), and the top of the connecting block (312) is fixedly connected to the bottom end of the inner rod of the hydraulic rod (311).

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