CN212004779U

CN212004779U - Protection device for temperature-reducing water regulating valve

Info

Publication number: CN212004779U
Application number: CN202020707264.1U
Authority: CN
Inventors: 章震伟
Original assignee: Guangdong Yuedian Xinhui Power Generation Co ltd
Current assignee: Guangdong Yuedian Xinhui Power Generation Co ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-11-24
Anticipated expiration: 2030-04-30

Abstract

The utility model relates to a warm water governing valve technical field discloses desuperheating water governing valve protection device, which comprises a valve body, the both ends symmetry intercommunication of valve body has inlet tube and outlet pipe, fixedly connected with protection mechanism on the inlet tube, protection mechanism includes the blow off pipe, first valve and second valve, the blow off pipe intercommunication is on the lower extreme pipe wall of inlet tube, first valve is installed on the pipe wall that valve body one end position was kept away from to the inlet tube, the blow off pipe sets up between first valve and valve body, the second valve is installed on the blow off pipe, protection mechanism still includes the filter tube, the filter screen, a piston, the threaded rod, the screwed pipe, driving medium and two locating parts, filter tube fixed connection is on the interior pipe wall of inlet tube, and the filter tube setting is between blow off pipe and valve. The utility model discloses water to in the inlet tube filters, prevents that aquatic impurity from getting into in the valve body, need not to dismantle the valve body moreover, can easily convenient clear up the accumulational impurity in the inlet tube.

Description

Protection device for temperature-reducing water regulating valve

Technical Field

The utility model relates to a desuperheating water governing valve technical field especially relates to desuperheating water governing valve protection device.

Background

When the boiler or the steam turbine fluctuates in operation or the temperature of water and steam with higher temperature needs to be reduced to a required temperature value, the temperature-reducing water quantity is adjusted by automatically opening or closing the temperature-reducing water adjusting valve according to a sensor signal or a temperature signal sent to the temperature-reducing water quantity by an adjusted medium, so that the temperature parameter of the adjusted medium is controlled within the safety range of the system or within the parameter range required by the operation of the system. Because the water contains impurities, after the temperature-reducing water regulating valve works for a long time, a large amount of impurities are accumulated in the temperature-reducing water regulating valve, and the impurities are blocked in the temperature-reducing water regulating valve and can directly affect the normal use of the temperature-reducing water regulating valve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art because contain impurity in the water, the temperature-reducing water regulating valve is through long-time work back, and its inside is to piling up a large amount of impurities, and these impurity stifled can be directly from the problem of the normal use that influences the temperature-reducing water regulating valve in the temperature-reducing water regulating valve, and the temperature-reducing water regulating valve protection device who provides.

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

the protection device for the temperature-reducing water regulating valve comprises a valve body, wherein the two ends of the valve body are symmetrically communicated with a water inlet pipe and a water outlet pipe, and a protection mechanism is fixedly connected to the water inlet pipe.

Preferably, the protection mechanism comprises a drain pipe, a first valve and a second valve, the drain pipe is communicated with the pipe wall at the lower end of the water inlet pipe, the first valve is arranged on the pipe wall at the position, far away from one end of the valve body, of the water inlet pipe, the drain pipe is arranged between the first valve and the valve body, the second valve is arranged on the drain pipe, the protection mechanism further comprises a filter pipe, a filter screen, a piston, a threaded rod, a threaded pipe, a transmission part and two limiting parts, the filter pipe is fixedly connected to the inner pipe wall of the water inlet pipe, the filter pipe is arranged between the drain pipe and the valve body, the filter screen is connected to the pipe opening at the end, far away from the valve body, of the filter pipe, the piston is matched with the filter pipe, the piston is arranged in the water inlet pipe between the filter pipe and the valve body, the threaded rod is fixedly connected to the center of the end, the screwed pipe is connected to the water inlet pipe through a transmission part, and one end, far away from the filter pipe, of the piston is connected with the inner pipe wall of the water inlet pipe through two limiting parts symmetrically arranged about the screwed pipe.

Preferably, the transmission part comprises a sealing bearing, a rotating shaft, a driving bevel gear and a driven bevel gear, the sealing bearing is embedded in the upper end pipe wall of the water inlet pipe, the rotating shaft is fixedly connected to the inner ring wall of the sealing bearing, the two ends of the rotating shaft penetrate through the sealing bearing and extend outwards, the driving bevel gear is fixedly connected to the lower end of the rotating shaft, the driven bevel gear is fixedly connected to one end, away from the piston, of the threaded pipe, and the driving bevel gear is meshed with the driven bevel gear.

Preferably, the limiting part comprises a limiting rod and a limiting plate, the limiting plate is fixedly connected to the inner pipe wall of the water inlet pipe, the limiting rod is fixedly connected to one end, away from the filter pipe, of the piston, one end, away from the piston, of the limiting rod penetrates through the limiting plate, and the limiting rod is connected with the limiting plate in a sliding mode.

Preferably, a sealing groove is formed in the annular side wall of the piston, and a sealing ring is sleeved in the sealing groove.

Preferably, the upper end of the rotating shaft is fixedly connected with a rotating handle, and the rotating handle is provided with anti-skid grains.

Compared with the prior art, the utility model provides a desuperheating water governing valve protection device possesses following beneficial effect:

this desuperheating water regulating valve protection device through setting up protection mechanism, filters the water in the inlet pipe, prevents that aquatic impurity from getting into in the valve body, need not to dismantle the valve body moreover, can be light convenient clears up accumulational impurity in the inlet pipe.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses water to in the inlet tube filters, prevents that aquatic impurity from getting into in the valve body, need not to dismantle the valve body moreover, can easily convenient clear up the accumulational impurity in the inlet tube.

Drawings

Fig. 1 is a schematic structural view of a temperature-reducing water regulating valve protection device provided by the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1.

In the figure: the device comprises a valve body 1, a water inlet pipe 2, a water outlet pipe 3, a sewage discharge pipe 4, a first valve 5, a second valve 6, a filter pipe 7, a filter screen 8, a piston 9, a threaded rod 10, a threaded pipe 11, a sealing bearing 12, a rotating shaft 13, a driving bevel gear 14, a driven bevel gear 15, a limiting rod 16, a limiting plate 17 and a sealing ring 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, the protection device for the temperature-reducing water regulating valve comprises a valve body 1, wherein two ends of the valve body 1 are symmetrically communicated with a water inlet pipe 2 and a water outlet pipe 3, and a protection mechanism is fixedly connected to the water inlet pipe 2.

Preferably, the protection mechanism comprises a sewage discharge pipe 4, a first valve 5 and a second valve 6, the sewage discharge pipe 4 is communicated with the pipe wall at the lower end of the water inlet pipe 2, the first valve 5 is arranged on the pipe wall at the position, far away from one end of the valve body 1, of the water inlet pipe 2, the sewage discharge pipe 4 is arranged between the first valve 5 and the valve body 1, the second valve 6 is arranged on the sewage discharge pipe 4, the protection mechanism further comprises a filter pipe 7, a filter screen 8, a piston 9, a threaded rod 10, a threaded pipe 11, a transmission part and two limiting parts, the filter pipe 7 is fixedly connected on the inner pipe wall of the water inlet pipe 2, the filter pipe 7 is arranged between the sewage discharge pipe 4 and the valve body 1, the filter screen 8 is connected at the pipe orifice at one end, far away from the valve body 1, of the filter pipe 7, the piston 9 is matched with the filter pipe 7, the piston 9 is arranged in the water inlet, the threaded pipe 11 is in threaded connection with the rod wall of the threaded rod 10, the threaded pipe 11 is connected with the water inlet pipe 2 through a transmission piece, one end, far away from the filter pipe 7, of the piston 9 is connected with the inner pipe wall of the water inlet pipe 2 through two limiting pieces symmetrically arranged relative to the threaded pipe 11, when the valve body 1 works normally, the first valve 5 is opened, the second valve 6 is closed, water entering the water inlet pipe 2 firstly passes through the filter screen 8 of the filter pipe 7 to filter impurities in the water, the impurities are prevented from entering the valve body 1, when the impurities on the filter screen 8 need to be cleaned, the first valve 6 is closed, the threaded pipe 11 is driven to rotate through the transmission piece, after the threaded rod 10 connected with the piston 9 is limited by the limiting pieces, the threaded rod 10 drives the piston 9 to do horizontal movement in the corresponding direction according to the rotation direction of the threaded pipe 11, so that the piston 9 moves towards the filter pipe 7, and the second valve 6, with the reverse release of filter tube 7 internal water, the water in the filter tube 7 backflushes filter screen 8, with the impurity washout of the adhesion of the 8 outside of filter screen under, the discharge of rethread blow off pipe 4 need not to dismantle valve body 1, can be light convenient to the accumulational impurity of inlet tube 2 in clear up.

The driving medium includes sealed bearing 12, axis of rotation 13, drive bevel gear 14 and driven bevel gear 15, sealed bearing 12 inlays the upper end pipe wall at inlet tube 2, axis of rotation 13 fixed connection is on sealed bearing 12's inner circle wall, and sealed bearing 12 is passed and outwards extends at the both ends of axis of rotation 13, drive bevel gear 14 fixed connection is at the lower extreme of axis of rotation 13, driven bevel gear 15 fixed connection is at the one end that piston 9 was kept away from to screwed pipe 11, and drive bevel gear 14 meshes with driven bevel gear 15 mutually, make axis of rotation 13 can keep normal pivoted while not influencing the leakproofness of inlet tube 2 through sealed bearing 12, exert the turning force to axis of rotation 13, drive bevel gear 14 when axis of rotation 13 rotates and rotate, driven bevel gear 15 through meshing with drive bevel gear 14 drives screwed pipe 11 and rotates.

The locating part includes gag lever post 16 and limiting plate 17, limiting plate 17 fixed connection is on inlet tube 2's interior pipe wall, the one end of filter tube 7 is kept away from at piston 9 to gag lever post 16 fixed connection, and gag lever post 16 keeps away from the one end of piston 9 and runs through limiting plate 17 and set up, and gag lever post 16 and limiting plate 17 sliding connection, the locating part that two symmetries set up suspends piston 9 in inlet tube 2, because gag lever post 16 can only move in limiting plate 17, and then spacing piston 9, make piston 9 can only be the lateral motion of horizontal direction.

A sealing groove is formed in the annular side wall of the piston 9, a sealing ring 18 is sleeved in the sealing groove, and the sealing performance of the piston 9 in the movement process in the filter pipe 7 is improved through the sealing ring 18.

The upper end of the rotating shaft 13 is fixedly connected with a rotating handle, the rotating shaft 13 can be driven to rotate through the rotating handle, and the rotating handle is provided with anti-skidding grains, so that the friction force when the rotating handle is held by hands is improved.

In the utility model, when the valve body 1 works normally, the first valve 5 is opened, the second valve 6 is closed, the water entering the water inlet pipe 2 firstly passes through the filter screen 8 of the filter pipe 7 to filter impurities in the water, the impurities are prevented from entering the valve body 1, when the impurities on the filter screen 8 need to be cleaned, the first valve 6 is closed, the transmission part drives the threaded pipe 11 to rotate, after the threaded rod 10 connected with the piston 9 is limited by the limiting part, the threaded rod 10 drives the piston 9 to do horizontal motion in the corresponding direction according to the rotating direction of the threaded pipe 11, so that the piston 9 moves towards the filter pipe 7, the second valve 6 is opened when the piston 9 moves in the filter pipe 7, the water in the filter pipe 7 is pushed out reversely, the water in the filter pipe 7 washes the filter screen 8 reversely, the impurities adhered to the outer side of the filter screen 8 are washed down and then discharged through the sewage discharge pipe 4, need not to dismantle valve body 1, can be light convenient to the accumulational impurity in inlet tube 2 clear up.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The protection device for the desuperheating water regulating valve comprises a valve body (1) and is characterized in that two ends of the valve body (1) are symmetrically communicated with a water inlet pipe (2) and a water outlet pipe (3), and a protection mechanism is fixedly connected to the water inlet pipe (2).

2. The protection device for the temperature-reducing water regulating valve according to claim 1, characterized in that the protection mechanism comprises a blow-off pipe (4), a first valve (5) and a second valve (6), the blow-off pipe (4) is communicated with the lower end pipe wall of the water inlet pipe (2), the first valve (5) is installed on the pipe wall of the water inlet pipe (2) far away from one end of the valve body (1), the blow-off pipe (4) is arranged between the first valve (5) and the valve body (1), the second valve (6) is installed on the blow-off pipe (4), the protection mechanism further comprises a filter pipe (7), a filter screen (8), a piston (9), a threaded rod (10), a threaded pipe (11), a transmission part and two limiting parts, the filter pipe (7) is fixedly connected to the inner pipe wall of the water inlet pipe (2), and the filter pipe (7) is arranged between the blow-off pipe (4) and the valve body (1), the filter screen (8) is connected in the one end mouth of pipe department of valve body (1) is kept away from in filter tube (7), piston (9) and filter tube (7) phase-match, and piston (9) set up in inlet tube (2) between filter tube (7) and valve body (1), threaded rod (10) fixed connection is in the one end center department of filter tube (7) is kept away from in piston (9), screwed pipe (11) threaded connection is on the pole wall of threaded rod (10), screwed pipe (11) are connected on inlet tube (2) through the driving medium, the one end that filter tube (7) were kept away from in piston (9) is connected with the interior pipe wall of inlet tube (2) through two locating parts about screwed pipe (11) symmetry setting.

3. The protection device for the temperature-reducing water regulating valve according to claim 2, wherein the transmission member comprises a seal bearing (12), a rotating shaft (13), a driving bevel gear (14) and a driven bevel gear (15), the seal bearing (12) is embedded in the upper end pipe wall of the water inlet pipe (2), the rotating shaft (13) is fixedly connected to the inner ring wall of the seal bearing (12), two ends of the rotating shaft (13) penetrate through the seal bearing (12) and extend outwards, the driving bevel gear (14) is fixedly connected to the lower end of the rotating shaft (13), the driven bevel gear (15) is fixedly connected to one end, away from the piston (9), of the threaded pipe (11), and the driving bevel gear (14) is meshed with the driven bevel gear (15).

4. A desuperheating water regulating valve protection device according to claim 2, wherein the limiting member comprises a limiting rod (16) and a limiting plate (17), the limiting plate (17) is fixedly connected to the inner pipe wall of the water inlet pipe (2), the limiting rod (16) is fixedly connected to one end of the piston (9) far away from the filter pipe (7), one end of the limiting rod (16) far away from the piston (9) is arranged through the limiting plate (17), and the limiting rod (16) is connected with the limiting plate (17) in a sliding manner.

5. A water reducing temperature regulating valve protection device according to claim 2, wherein a sealing groove is formed on the annular side wall of the piston (9), and a sealing ring (18) is sleeved in the sealing groove.

6. A protection device for a temperature-reducing water regulating valve according to claim 3, characterized in that a rotating handle is fixedly connected to the upper end of the rotating shaft (13), and the rotating handle is provided with anti-skid threads.