Condensate pump performance improving device based on pipe diameter resistance reduction

Abstract

The utility model discloses a condensate pump performance improving device based on pipe diameter resistance reduction, which belongs to the technical field of condensate pumps and comprises a deaerator, the outer side wall of the deaerator is fixedly communicated with a water inlet pipe, one end, far away from the deaerator, of the water inlet pipe is detachably connected with a water valve through a bolt, and one end, far away from the deaerator, of the water inlet pipe is provided with a threaded groove. According to the condensate pump performance improving device based on pipe diameter resistance reduction, through cooperative use of the mounting block, the expansion pipe, a silica gel pad, an expansion ring, a support, a pull rod, a supporting ring, a limiting frame and an impact plate, when the water pressure changes, the pipe diameter of the expansion pipe is conveniently adjusted, expansion is conducted when the flow is large, water flow passes through more smoothly, and the flow velocity distribution is more uniform; turbulent flow and resistance caused by uneven flow velocity are reduced; when the flow is small, the proper flow speed is kept, and on-way resistance generated by friction between high-speed water flow and the pipe wall is reduced; the pipe diameter is shrunk in the low ebb period, and energy waste and local resistance increase caused by large pipe diameter and low flow speed are avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of condensate pump, concretely relates to a condensate pump performance promotion device based on pipe diameter resistance reduction. BACKGROUND

[0002] The condensate pump is the important equipment in the condensate water system of the thermal power plant, and its role is to boost the condensate water, and after chemical fine treatment and low pressure heater, the condensate water is heated and sent to the deaerator, and it is the main equipment for completing the steam-water circulation of the thermal system of the unit;

[0003] However, in the operation process of the thermal power plant, the flow of the condensate water under different working conditions is not constant. For example, when the unit load changes, the condensation amount of steam will change accordingly, resulting in the fluctuation of the condensate water flow. When the flow changes, the traditional fixed pipe diameter water inlet pipe cannot be self-adaptively adjusted, and it is difficult to meet the best hydraulic conditions under different flows, and the existing deaerator water inlet pipe, when the flow is large, the water flow speed is too fast and the distribution is uneven, the friction and local resistance of the water flow and the pipe wall are increased, and when the flow is small, the pipe diameter is relatively large, the flow speed is uneven, and there is turbulence, the water flow turbulence, the increase of the along-the-way resistance and the increase of the local resistance will make the condensate pump need to overcome greater resistance to transport the condensate water, which will lead to the increase of the energy consumption of the condensate pump, the reduction of the efficiency, and the long-term operation may affect the service life of the pump;

[0004] To solve the above problems, the condensate pump performance promotion device based on pipe diameter resistance reduction is provided in the application. CONTENT OF THE UTILITY MODEL

[0005] In view of the problems in the related art, the utility model provides a condensate pump performance promotion device based on pipe diameter resistance reduction to overcome the above technical problems existing in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of condensate pump performance promotion device based on pipe diameter resistance reduction, including deaerator, the outer wall of deaerator is fixedly connected with inlet pipe, the water valve is detachably connected with the one end of inlet pipe away from deaerator by bolt, the one end of inlet pipe away from deaerator is equipped with thread groove, the installation block is threadedly connected with inlet pipe by thread groove, the outer wall of installation block is equipped with insertion hole, the outer wall of installation block is fixedly connected with expansion pipe, the inner wall of expansion pipe is fixedly connected with silica gel pad, the inner wall of silica gel pad is slidably connected with expansion ring, the inner wall of expansion ring is fixedly connected with support, the side of support away from installation block is fixedly connected with pull rod, the inner wall of inlet pipe is equipped with support ring, the inner wall of support ring is fixedly connected with limiting frame, the outer wall of pull rod is slidably connected with the inner wall of limiting frame, the side of pull rod away from support ring is fixedly connected with impact plate.

[0008] Preferably, the expansion pipe is fixedly connected with a slide rod at one end near the support ring, the outer wall of the limiting frame is provided with a sliding groove, the slide rod is located in the sliding groove provided on the outer wall of the limiting frame, the outer wall of the limiting frame is fixedly connected with a tension spring, one end of the tension spring away from the limiting frame is fixedly connected with the outer wall of the expansion pipe. By providing the slide rod, the tension spring and the sliding groove, the expansion of the expansion pipe can be synchronized, and the expansion ring inside the expansion pipe is prevented from deviating during expansion.

[0009] Preferably, the outer wall of the impact plate is fixedly connected with a connecting rod, one end of the connecting rod away from the impact plate is fixedly connected with an ear block, the end of the ear block away from the connecting rod is fixedly connected with a moving ring, the outer wall of the moving ring is in contact with the inner wall of the inlet pipe. By providing the connecting rod, the ear block and the moving ring, the impact plate can be supported, and the stability of the impact plate is improved.

[0010] Preferably, the outer wall of the support ring away from the expansion pipe is fixedly connected with a limiting rod, the outer wall of the limiting rod is slidably connected with the inner wall of the ear block. By providing the limiting rod, the relative angle between the moving ring and the support ring can be limited, and the moving ring is prevented from rotating during movement.

[0011] Preferably, the outer wall of the support ring near the moving ring is fixedly connected with a return spring, one end of the return spring away from the support ring is fixedly connected with the outer wall of the moving ring. By providing the return spring, the position of the moving ring can be adjusted when the water flow pressure changes.

[0012] Preferably, the outer wall of the support ring near the expansion pipe is fixedly connected with a spring piece, the support ring is clamped with the inlet pipe through the spring piece. By providing the spring piece, the support ring can be limited, and the stability between the support ring and the inlet pipe is improved.

[0013] In summary, the technical effects and advantages of the utility model are: the condensate pump performance improving device based on pipe diameter resistance reduction, through the cooperation of the mounting block, the expansion pipe, the silica gel pad, the expansion ring, the support, the pull rod, the support ring, the limiting frame and the impact plate, the pipe diameter of the expansion pipe can be adjusted when the water pressure changes, the expansion pipe is expanded when the flow is large, the water flow passes more smoothly, the flow velocity distribution is more uniform, and the turbulence and resistance caused by uneven flow velocity are reduced; the expansion pipe is contracted when the flow is small, the appropriate flow velocity is maintained, and the along-way resistance caused by the friction between the high-speed water flow and the pipe wall is reduced; the pipe diameter is contracted during the low valley period, and the energy waste and the increase of local resistance caused by the large pipe diameter and the low flow velocity are avoided.

[0014] Through the cooperation of the support ring, the limiting rod, the ear block, the connecting rod and the reset spring, the position of the impact plate can be adjusted according to the size of the water pressure, so that the pipe diameter of the expansion pipe is adaptively adjusted under different pressure water flow conditions. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a water inlet pipe and related part structure schematic view of the utility model;

[0017] Figure 3 It is a jack and related part structure schematic view of the utility model;

[0018] Figure 4 It is a slide rod and related part structure schematic view of the utility model;

[0019] Figure 5 It is a limiting rod and related part structure schematic view of the utility model.

[0020] In the drawing:

[0021] 1, deaerator; 2, water inlet pipe; 3, thread groove; 4, mounting block; 5, expansion pipe; 6, silica gel pad; 7, expansion ring; 8, support; 9, pull rod; 10, slide rod; 11, tension spring; 12, support ring; 13, limiting frame; 14, impact plate; 15, limiting rod; 16, ear block; 17, connecting rod; 18, reset spring; 19, elastic sheet; 20, moving ring; 21, water valve; 22, jack. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0023] Reference Figures 1-4The utility model provides a kind of condensate pump performance promotion device based on pipe diameter resistance reduction, including deaerator 1, the outer side wall of deaerator 1 is fixedly connected with water inlet pipe 2, water inlet pipe 2 is detachably connected with water valve 21 by bolt one end away from deaerator 1, water inlet pipe 2 is opened with screw groove 3 one end away from deaerator 1, water inlet pipe 2 is threadedly connected with mounting block 4 by screw groove 3, the outer side wall of mounting block 4 is opened with jack 22, installer can be inserted into jack 22 by external tool, spanner etc., mounting block 4 is installed, the outer side wall of mounting block 4 is fixedly connected with expansion pipe 5, slot is opened on expansion pipe 5, the one end away from mounting block 4 of expansion pipe 5 is divided into four parts, the inner side wall of expansion pipe 5 is fixedly connected with silica gel pad 6, the material of silica gel pad 6 is silicone rubber, with good elasticity, high temperature resistance, water resistance and ageing resistance, can be used above two hundred degrees Celsius for a long time, and it can help pipe to restore to original shape by its elasticity, play certain auxiliary recovery effect, the inner side wall of silica gel pad 6 is slidably connected with expansion ring 7, the outer side wall of expansion ring 7 is attached with the inner side wall of silica gel pad 6, the inner side wall of expansion ring 7 is fixedly connected with support 8, the side of support 8 close to mounting block 4 is provided with arc, avoid the flow of water to cause resistance, the side of support 8 away from mounting block 4 is fixedly connected with pull rod 9, the inner side wall of water inlet pipe 2 is attached with support ring 12, the inner side wall of support ring 12 is fixedly connected with limiting frame 13, the outer side wall of pull rod 9 is slidably connected with the inner side wall of limiting frame 13, the side of limiting frame 13 close to mounting block 4 is also provided with curvature, to reduce the resistance of water flow, the side of pull rod 9 away from support ring 12 is fixedly connected with impact plate 14, impact plate 14 is located at the side of support ring 12 away from expansion pipe 5, to the two ends vertex of impact plate 14 as baseline, to the baseline face, the cross section shape generated presents a dumbbell-shaped figure, which is composed of two isosceles triangles and a rectangle in the middle;

[0024] In use, the water source enters the inside of the water inlet pipe 2 through the water valve 21. When the pressure is too large and the flow rate is too fast, the water flow impacts the impact plate 14. At this time, the impact plate 14 drives the pull rod 9 to move away from the expansion pipe 5, and the movement track of the impact plate 14 is limited by the support ring 12 and the limiting frame 13 to avoid deviation of the impact plate 14 during movement. In the process of moving the impact plate 14 and the pull rod 9, the expansion ring 7 is also moved synchronously. Since the outer diameter of the expansion ring 7 is larger than the outer diameter of the expansion pipe 5 near the support ring 12, the expansion pipe 5 is gradually compressed during the movement of the expansion ring 7. Since the expansion pipe 5 near the support ring 12 is divided into four parts, and the inner wall of the expansion pipe 5 is provided with a silica gel pad 6, the expansion ring 7 can expand the expansion pipe 5 near the support ring 12 during movement, thereby adjusting the pipe diameter of the expansion pipe 5 and reducing the flow rate of the water source to reduce the friction between the water flow and the inner wall of the water inlet pipe 2, thereby reducing the resistance in the water inlet pipe 2. When the water flow pressure is small and the flow rate is slow, the impact force of the water flow on the impact plate 14 is insufficient, and at this time, due to the slow water flow speed and small water pressure, the friction between the water flow and the water inlet pipe 2 is also small, and the resistance is also small.

[0025] With reference to Figure 4 and Figure 5 , the expansion pipe 5 near the support ring 12 is fixedly connected with four slide rods 10, which are arranged in a circumferential manner on the outer wall of the expansion pipe 5 near the support ring 12. The outer wall of the limiting frame 13 is provided with four slide grooves, and the four slide rods 10 are located in the slide grooves of the outer wall of the limiting frame 13. The outer wall of the limiting frame 13 is fixedly connected with four tension springs 11, and the ends of the four tension springs 11 away from the limiting frame 13 are fixedly connected with the outer wall of the expansion pipe 5. When the expansion pipe 5 is expanded, the four slide rods 10 and the four slide grooves limit the expansion direction of the expansion pipe 5 to avoid different expansion speeds of the four parts of the expansion pipe 5 during expansion, thereby avoiding turbulence of the water source.

[0026] With reference to Figure 5 , the outer wall of the impact plate 14 is fixedly connected with four connecting rods 17, which are arranged in a circumferential manner on the outer wall of the impact plate 14. The ends of the four connecting rods 17 away from the impact plate 14 are fixedly connected with four ear blocks 16, and the ends of the four ear blocks 16 away from the four connecting rods 17 are fixedly connected with a moving ring 20. The outer wall of the moving ring 20 is in contact with the inner wall of the water inlet pipe 2. The moving direction of the impact plate 14 is limited by the moving ring 20 during movement to avoid angle deviation of the impact plate 14 during movement due to the impact of the water source.

[0027] With reference to Figure 4 andFigure 5 The outer wall of the side of the supporting ring 12 away from the expansion pipe 5 is fixedly connected with a limiting rod 15, four limiting rods 15 are arranged, the positions of the four limiting rods 15 correspond to the positions of the four ear blocks 16 respectively, the outer walls of the four limiting rods 15 are slidably connected with the inner walls of the four ear blocks 16 respectively, and the four limiting rods 15 cooperate with the four ear blocks 16 to limit the relative angle between the supporting ring 12 and the moving ring 20.

[0028] With reference to Figure 4 and Figure 5 The outer wall of the side of the supporting ring 12 close to the moving ring 20 is fixedly connected with a reset spring 18, one end of the reset spring 18 away from the supporting ring 12 is fixedly connected with the outer wall of the moving ring 20, and the reset spring 18 is located between the supporting ring 12 and the moving ring 20, so that the distance between the supporting ring 12 and the moving ring 20 can be adjusted according to the pressure of the water source.

[0029] With reference to Figure 3 and Figure 5 The outer wall of the side of the supporting ring 12 close to the expansion pipe 5 is fixedly connected with a spring piece 19, four spring pieces 19 are arranged, and the four spring pieces 19 are arranged in a circumferential array on the outer wall of the supporting ring 12. Since the four supporting rings 12 are made of metal material and have elasticity when being bent, when the supporting ring 12 is located in the interior of the water inlet pipe 2, the four supporting rings 12 are respectively attached to the inner wall of the water inlet pipe 2, so that the four supporting rings 12 are bent, and then the supporting ring 12 is clamped under the action of the elasticity of the four supporting rings 12.

[0030] Working principle:

[0031] In use, the operator connects the mounting block 4 with the water inlet pipe 2 through a wrench or an external tool, and places the parts on the side of the mounting block 4 away from the water valve 21 inside the water inlet pipe 2, further, the water source enters the inside of the water inlet pipe 2 through the water valve 21, when the pressure is too large and the flow rate is too fast, the water flow impacts the impact plate 14, at this time, the impact plate 14 drives the pull rod 9 to move away from the expansion pipe 5, and the support ring 12 and the limiting frame 13 limit the moving track of the impact plate 14 to avoid the deviation of the impact plate 14 in the moving process, in the moving process of the impact plate 14 driving the pull rod 9, the expansion ring 7 is synchronously driven to move, because the outer diameter of the expansion ring 7 is larger than the outer diameter of the expansion pipe 5 close to the support ring 12, so in the moving process of the expansion ring 7, the expansion pipe 5 is gradually compressed, and because the end of the expansion pipe 5 close to the support ring 12 is divided into four parts, and the inner wall of the expansion pipe 5 is provided with the silica gel pad 6, so when the expansion ring 7 moves, the end of the expansion pipe 5 close to the support ring 12 can be expanded, so as to adjust the pipe diameter of the expansion pipe 5, reduce the flow rate of the water source, and reduce the friction between the water flow and the inner wall of the water inlet pipe 2, thereby reducing the resistance in the water inlet pipe 2, when the water flow pressure is small and the flow rate is slow, the impact force of the water flow on the impact plate 14 is insufficient, and at this time, because the water flow speed is slow and the water pressure is small, the friction between the water flow and the water inlet pipe 2 is also small, and the resistance is also small, in this process, the expansion of the expansion pipe 5 is synchronized through the cooperation of the sliding slot on the slide 10, the tension spring 11 and the limiting frame 13, so as to avoid the expansion of the expansion pipe 5 at different speeds, which causes the turbulence of the water source, further, the movement angle of the impact plate 14 is limited through the cooperation of the limiting rod 15, the ear block 16 and the connecting rod 17, so as to avoid the angle deviation of the impact plate 14 in the moving process, thereby avoiding the scratching between the expansion ring 7 and the inner wall of the silica gel pad 6, and increasing the resistance of the water source.

[0032] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A condensate pump performance enhancement device based on pipe diameter resistance reduction, comprising a deaerator (1), characterized in that, The outer side wall of the deaerator (1) is fixedly connected with a water inlet pipe (2), one end of the water inlet pipe (2) away from the deaerator (1) is detachably connected with a water valve (21) through bolts, a threaded groove (3) is formed in the one end of the water inlet pipe (2) away from the deaerator (1), the water inlet pipe (2) is threadedly connected with a mounting block (4) through the threaded groove (3), a plug hole (22) is formed through the outer side wall of the mounting block (4), an expansion pipe (5) is fixedly connected to the outer side wall of the mounting block (4), a silica gel pad (6) is fixedly connected to the inner side wall of the expansion pipe (5), an expansion ring (7) is slidably connected to the inner side wall of the silica gel pad (6), a support (8) is fixedly connected to the inner side wall of the expansion ring (7), a pull rod (9) is fixedly connected to the side of the support (8) away from the mounting block (4), a supporting ring (12) is arranged in abutment with the inner side wall of the water inlet pipe (2), a limiting frame (13) is fixedly connected to the inner side wall of the supporting ring (12), the outer side wall of the pull rod (9) is slidably connected with the inner side wall of the limiting frame (13), and an impact plate (14) is fixedly connected to the side of the pull rod (9) away from the supporting ring (12).

2. The condensate pump performance improvement device based on pipe diameter resistance reduction according to claim 1, characterized in that, One end of the expansion pipe (5) close to the supporting ring (12) is fixedly connected with a sliding rod (10), a sliding groove is formed in the outer side wall of the limiting frame (13), the sliding rod (10) is located in the sliding groove formed in the outer side wall of the limiting frame (13), and a tension spring (11) is fixedly connected to the outer side wall of the limiting frame (13), one end of the tension spring (11) away from the limiting frame (13) is fixedly connected with the outer side wall of the expansion pipe (5).

3. The device for improving the performance of a condensate pump based on the resistance reduction of pipe diameter according to claim 1, characterized in that, The outer side wall of the impact plate (14) is fixedly connected with a connecting rod (17), one end of the connecting rod (17) away from the impact plate (14) is fixedly connected with an ear block (16), one end of the ear block (16) away from the connecting rod (17) is fixedly connected with a moving ring (20), and the outer side wall of the moving ring (20) is in abutment with the inner side wall of the water inlet pipe (2).

4. The condensate pump performance improvement device based on pipe diameter resistance reduction according to claim 3, characterized in that, The outer side wall of the side of the supporting ring (12) away from the expansion pipe (5) is fixedly connected with a limiting rod (15), and the outer side wall of the limiting rod (15) is slidably connected with the inner side wall of the ear block (16).

5. The condensate pump performance improvement device based on pipe diameter resistance reduction according to claim 3, characterized in that, The outer side wall of the side of the supporting ring (12) close to the moving ring (20) is fixedly connected with a return spring (18), and one end of the return spring (18) away from the supporting ring (12) is fixedly connected with the outer side wall of the moving ring (20).

6. The resistance-reducing pipe diameter-based condensate pump performance improvement device according to claim 5, characterized by, The outer side wall of the side of the supporting ring (12) close to the expansion pipe (5) is fixedly connected with a spring sheet (19), and the supporting ring (12) is clamped with the water inlet pipe (2) through the spring sheet (19).

Images