阅读说明：本技术 一种蒸汽系统疏水阀的汽锁破除装置以及破除方法 (Steam lock breaking device and method for steam system drain valve ) 是由 俞钱龙 陶小军 王叶镓 王志强 沈佳 马方杰 倪杰 沈晓威 于 2020-12-25 设计创作，主要内容包括：本发明涉及一种蒸汽系统疏水阀的汽锁破除装置以及破除方法。该破除装置的干燥器通过疏水通道与外接设备连接,浮球式疏水阀设置在疏水通道上,温度传感器设置在疏水通道上,温度传感器用于获取疏水通道的实时温度信息,排气孔设置在浮球式疏水阀上,排气孔与排气管道连通,排气管道上设置有排气阀,控制器分别和温度传感器以及排气阀连接,控制器根据温度传感器获取的疏水通道的实时温度信息控制排气阀开启。本发明解决了干燥器疏水常见的汽锁问题,保证了干燥器可靠稳定运行,相比于疏水阀本体上开孔并加装排空气阀,或者是在疏水阀内置排空气阀这种保持一定泄漏量的破汽锁方案,本发明可大大提高疏水阀疏水效率,节约大量蒸汽能源。(The invention relates to a steam lock breaking device and a breaking method for a steam system drain valve. This abolish device's desicator passes through the drainage channel and is connected with external equipment, the setting of floater formula drain valve is on the drainage channel, temperature sensor sets up on the drainage channel, temperature sensor is used for acquireing the real-time temperature information of drainage channel, the exhaust hole sets up on the floater formula drain valve, exhaust hole and exhaust duct intercommunication are provided with discharge valve on the exhaust duct, the controller is connected with temperature sensor and discharge valve respectively, the controller is opened according to the real-time temperature information control discharge valve of the drainage channel that temperature sensor acquireed. Compared with the steam lock breaking scheme that the drainage valve body is provided with the hole and the exhaust valve is additionally arranged, or the exhaust valve is arranged in the drainage valve, so that a certain leakage amount is kept, the drainage efficiency of the drainage valve can be greatly improved, and a large amount of steam energy is saved.)

1. A steam lock breaking device of a steam system drain valve is suitable for breaking the steam lock of the steam system drain valve, and comprises a dryer (1), a floating ball type drain valve (4) and a drainage channel, wherein the dryer (1) is connected with external equipment through the drainage channel, the floating ball type drain valve (4) is arranged on the drainage channel, and the steam lock breaking device is characterized by comprising:

the temperature sensor is arranged on the hydrophobic channel and used for acquiring real-time temperature information of the hydrophobic channel;

the exhaust hole (4-1), the exhaust hole (4-1) is arranged on the floating ball type drain valve (4), the exhaust hole (4-1) is communicated with an exhaust pipeline (7), and an exhaust valve (8) is arranged on the exhaust pipeline (7);

the controller (9), the controller (9) respectively with temperature sensor and discharge valve (8) are connected, the controller is according to temperature sensor obtains the real-time temperature information control of drainage channel discharge valve (8) open.

2. The steam lock breaking device of the steam system trap of claim 1, characterized in that the drain passage comprises a pre-valve pipe (2) and a post-valve pipe (5), the ball-float trap (4) has a trap inlet (4-2) and a trap outlet (4-3), the trap inlet (4-2) of the ball-float trap (4) is connected with the delivery part of the dryer (1) through the pre-valve pipe (2), and the trap outlet (4-3) of the ball-float trap (4) is connected with an external device through the post-valve pipe (5).

3. The steam lock breaking device of the steam system steam trap is characterized in that the temperature sensor comprises a first temperature sensor (3), the first temperature sensor (3) is arranged on the front valve pipe (2), the first temperature sensor (3) is used for acquiring real-time temperature information of the front valve pipe (2), and the first temperature sensor (3) is connected with the controller (9).

4. The steam lock breaking device of the steam system trap of claim 3, characterized in that the temperature sensor further comprises a second temperature sensor (6), the second temperature sensor (6) is disposed on the post-valve pipe (5), the second temperature sensor (6) is used for acquiring real-time temperature information of the post-valve pipe (5), and the second temperature sensor (6) is connected with the controller (9).

5. The steam lock breaking apparatus of a steam system trap as in claim 4, further comprising:

the steam inlet pipeline (10), the steam inlet pipeline (10) is communicated with the dryer (1);

third temperature sensor (11), third temperature sensor (11) set up steam admission pipeline (10) are last, third temperature sensor (11) are used for acquireing the real-time temperature information of steam admission pipeline (10), third temperature sensor (11) with controller (9) are connected.

6. The steam lock breaking device of the steam system steam trap as claimed in claim 2, characterized in that the exhaust pipe (7) and the post-valve pipe (5) are connected.

7. The steam lock breaking device of the steam system steam trap as claimed in claim 1, wherein the opening degree of the exhaust valve (8) is adjustable.

8. The steam lock breaking device of the steam system trap valve is characterized in that the dryer (1) comprises a cylinder (1-1) and a siphon (1-2), the cylinder (1-1) is communicated with the drainage channel through a rotary joint (1-3), one end of the siphon (1-2) is arranged in the dryer (1), and the other end of the siphon (1-2) penetrates through the rotary joint (1-3).

9. The steam lock breaking device of the steam system steam trap as claimed in claim 8, wherein the steam inlet pipe (10) is in communication with the rotary joint (1-3).

10. A method of breaking a vapor lock of a steam trap of a steam system, the method comprising:

acquiring real-time temperature information on a hydrophobic channel through a temperature sensor arranged on the hydrophobic channel, and sending the real-time temperature information to a controller (9);

the controller (9) receives real-time temperature information on the hydrophobic channel sent by the temperature sensor, and compares the acquired real-time temperature information on the hydrophobic channel with a set fault temperature value;

the controller (9) determines a control strategy according to comparison between the acquired real-time temperature information on the drainage channel and a set fault temperature value, the exhaust valve (8) receives and executes the control strategy, in the control strategy, a filtering average value of the first temperature sensor (3) within 1 minute of the real-time temperature is Z1, a filtering average value of the second temperature sensor (6) within 1 minute of the real-time temperature is Z2, a filtering average value of the third temperature sensor (11) within 1 minute of the real-time temperature is Z3, Z3-Z1 is a, Z3-Z2 is b, and the control strategy is as shown in the table I:

table one.

Technical Field

The invention belongs to the technical field of water treatment, and particularly relates to a steam lock breaking device and a breaking method for a steam system drain valve.

Background

In the prior art, most of dryers guide a mixture of steam and condensed water into a floating ball type drain valve by means of a siphon pipe and a drain pipe, the floating ball type drain valve discharges the condensed water by means of a density difference principle, and the steam is reserved. If a large amount of steam in the mixture enters the drain valve and a pipeline connected with the drain valve to occupy a drain channel of the condensed water, the condensed water cannot be discharged into the drain valve, and a steam lock is formed. The steam lock can be broken only after the steam in the channel is pre-condensed into liquid water, and if very little non-condensable gas in the steam enters the drainage channel, the steam lock is difficult to break by the steam lock in the drainage channel in a short time. The steam lock of the drainage channel can greatly reduce the heat exchange efficiency of the dryer, influence the productivity of the equipment, and easily generate water hammer in condensed water retained in the dryer, so that the safety of the equipment of the dryer is directly influenced.

Most floating ball type drain valves and matched pipeline systems on the market have no reliable steam lock breaking measures. A few manufacturers open a hole on the drain valve body and install an exhaust valve additionally or build an exhaust valve in the drain valve, and the principle is to keep a certain opening degree of the exhaust valve to generate a certain leakage amount, so that steam and condensed water in a mixture are discharged outside all the time to achieve the purpose of breaking a steam lock. The steam lock breaking mode enables the drain valve to still exhaust outwards in the running time without steam lock faults, the drainage efficiency of the drain valve is sacrificed, and the steam waste is serious. In addition, the opening of the exhaust valve is difficult to control, the steam lock breaking effect cannot be achieved due to small adjustment, and the steam waste is more serious due to large adjustment.

Therefore, improvements in the prior art are needed.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a steam lock breaking device and a breaking method for a steam system drain valve, and aims to solve the technical problems that in the prior art, a floating ball type drain valve adopts a built-in exhaust valve to break steam lock, so that the drainage efficiency is sacrificed, and steam waste is serious.

The technical scheme of the invention is as follows:

in one aspect, the present invention provides a steam lock breaking device for a steam system trap, which is suitable for breaking a steam lock of a steam system trap, the breaking device includes a dryer, a floating ball type trap and a drainage channel, the dryer is connected with an external device through the drainage channel, the floating ball type trap is disposed on the drainage channel, and the breaking device includes:

the temperature sensor is arranged on the hydrophobic channel and used for acquiring real-time temperature information of the hydrophobic channel;

the exhaust hole is arranged on the floating ball type drain valve and communicated with an exhaust pipeline, and an exhaust valve is arranged on the exhaust pipeline;

and the controller is respectively connected with the temperature sensor and the exhaust valve, and controls the exhaust valve to be opened according to the real-time temperature information of the drainage channel acquired by the temperature sensor.

Furthermore, the drainage channel comprises a pipeline in front of the valve and a pipeline behind the valve, the floating ball type drainage valve is provided with a drainage valve inlet and a drainage valve outlet, the drainage valve inlet of the floating ball type drainage valve is connected with the conveying part of the dryer through the pipeline in front of the valve, and the drainage valve outlet of the floating ball type drainage valve is connected with external equipment through the pipeline behind the valve.

Further, the temperature sensor comprises a first temperature sensor, the first temperature sensor is arranged on the front valve pipeline and used for acquiring real-time temperature information of the front valve pipeline, and the first temperature sensor is connected with the controller.

Further, the temperature sensor further comprises a second temperature sensor, the second temperature sensor is arranged on the pipeline behind the valve, the second temperature sensor is used for acquiring real-time temperature information of the pipeline behind the valve, and the second temperature sensor is connected with the controller.

Still further, the breaking device further comprises:

the steam inlet pipeline is communicated with the dryer;

the third temperature sensor is arranged on the steam inlet pipeline and used for acquiring real-time temperature information of the steam inlet pipeline, and the third temperature sensor is connected with the controller.

Further, the exhaust duct is connected with the post-valve duct.

Further, the opening degree of the exhaust valve is adjustable.

Further, the dryer comprises a barrel and a siphon, the barrel is communicated with the drainage channel through a rotary joint, one end of the siphon is arranged in the dryer, and the other end of the siphon penetrates through the rotary joint.

Further, the steam inlet pipe is communicated with the rotary joint.

In another aspect, the present invention further provides a steam lock breaking method for a steam trap of a steam system, wherein the breaking method comprises:

acquiring real-time temperature information on a hydrophobic channel through a temperature sensor arranged on the hydrophobic channel, and sending the real-time temperature information to a controller;

the controller determines a control strategy according to comparison between the acquired real-time temperature information on the drainage channel and a set fault temperature value, the exhaust valve receives and executes the control strategy, in the control strategy, the filtering average value of the first temperature sensor within 1 minute of the real-time temperature is Z1, the filtering average value of the second temperature sensor within 1 minute of the real-time temperature is Z2, the filtering average value of the third temperature sensor within 1 minute of the real-time temperature is Z3, Z3-Z1 is a, Z3-Z2 is b, and the control strategy is as shown in the table I':

table one'.

The beneficial effects of the invention at least comprise:

the invention discloses a steam lock breaking device and a breaking method of a steam system drain valve, which control the opening of an exhaust valve arranged on an exhaust pipeline by comparing the temperature of a drain channel with a set fault temperature value, wherein the exhaust pipeline is communicated with an exhaust hole of a floating ball type drain valve, so that gas causing steam lock is exhausted, the common steam lock problem of draining water of a dryer is solved, the reliable and stable operation of the dryer is ensured, and compared with a steam lock breaking scheme of opening a hole on a drain valve body and additionally installing an exhaust valve or arranging an exhaust valve in the drain valve for keeping a certain leakage amount, the steam lock breaking device and the breaking method can greatly improve the drainage efficiency of the drain valve and save a large amount of steam energy.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a steam lock breaking device of a steam trap of a steam system according to this embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

First, the present embodiment discloses a steam lock breaking device for a steam system trap, which is suitable for breaking the steam lock of the steam system trap.

Fig. 1 is a schematic structural diagram of a steam lock breaking device of a steam system trap of this embodiment, and with reference to fig. 1, the breaking device includes a dryer 1, a floating ball type trap 4 and a drainage channel, the dryer 1 is connected with an external device through the drainage channel, and the floating ball type trap 4 is disposed on the drainage channel.

Further, referring to fig. 1, in this embodiment, the dryer 1 may be a tumble dryer, which includes a drum 1-1, the drum 1-1 is communicated with the drainage channel through a rotary joint 1-3, one end of a siphon 1-2 is disposed in the dryer 1, and the other end of the siphon 1-2 passes through the rotary joint 1-3. Under normal operating mode, steam and comdenstion water mixture are led into to ball float trap 4 by siphon 1-2, rotary joint 1-3 and drainage channel, and ball float trap 4 discharges the comdenstion water to external equipment through the density difference principle and handles, and steam remains, and this is prior art, and this embodiment does not describe this again.

With reference to fig. 1, the breaking device in this embodiment further includes a temperature sensor, an exhaust pipe 7, an exhaust valve 8 and a controller 9, wherein the temperature sensor is disposed on the drainage channel, the temperature sensor is configured to obtain real-time temperature information of the drainage channel, the floating ball type drain valve 4 is provided with an exhaust hole 4-1, the exhaust hole 4-1 is communicated with the exhaust pipe 7, the exhaust pipe 7 is provided with the exhaust valve 8, the controller 9 is respectively connected with the temperature sensor and the exhaust valve 8, and the controller 9 controls the exhaust valve 8 to open according to the real-time temperature information of the drainage channel obtained by the temperature sensor.

Referring to fig. 1, the drain passage of the present embodiment includes a pre-valve pipe 2 and a post-valve pipe 5, the floating ball type drain valve 4 has a drain valve inlet 4-2 and a drain valve outlet 4-3, the drain valve inlet 4-2 of the floating ball type drain valve 4 is connected to the delivery portion of the dryer 1 through the pre-valve pipe 2, and the drain valve outlet 4-3 of the floating ball type drain valve 4 is connected to an external device through the post-valve pipe 5. The steam and condensed water mixture is firstly led into the floating ball type drain valve 4 through the pipeline 2 in front of the valve, the floating ball type drain valve 4 discharges the condensed water through the density difference principle, and the condensed water is led to an external device for processing through the pipeline 5 behind the valve.

With reference to fig. 1, in this embodiment, the temperature sensor includes the first temperature sensor 3, the first temperature sensor 3 is disposed on the valve front pipe 2, the first temperature sensor 3 is configured to obtain real-time temperature information of the valve front pipe 2, and the first temperature sensor 3 is connected to the controller 9, so that the real-time temperature information of the valve front pipe 2 can be sent to the controller 9, and the exhaust valve 8 is controlled by the controller 9.

Further, with reference to fig. 1, the temperature sensor of this embodiment further includes a second temperature sensor 6, the second temperature sensor 6 is disposed on the rear valve pipe 5, the second temperature sensor 6 is configured to obtain real-time temperature information of the rear valve pipe 5, and the second temperature sensor 6 is connected to the controller 9, so that the real-time temperature information of the front valve pipe 2 can be sent to the controller 9, and the exhaust valve 8 is controlled by the controller 9.

Further, combine fig. 1, the breaking device of this embodiment still includes steam admission pipeline 10 and third temperature sensor 11, steam admission pipeline 10 and 1 intercommunication of desicator, third temperature sensor 11 sets up on steam admission pipeline 10, third temperature sensor 11 is used for acquireing the real-time temperature information of steam admission pipeline 10, and then can acquire the real-time temperature information of 1 output of desicator, third temperature sensor 11 and controller 9 are connected, can send the real-time temperature information of 1 output of desicator to controller 9 like this.

Specifically, in this embodiment, the steam inlet pipe 10 communicates with the rotary joints 1 to 3.

Referring to fig. 1, in the present embodiment, the exhaust pipe 7 is connected to the post-valve pipe 5, so that the gas exhausted from the ball float trap 4 can be introduced into the post-valve pipe 5 and enter the external device for treatment.

Thirdly, based on the steam lock breaking device of the steam system drain valve, the invention also provides a steam lock breaking method of the steam system drain valve, and the breaking method comprises the following steps:

acquiring real-time temperature information on the drainage channel through a temperature sensor arranged on the drainage channel, and sending the real-time temperature information to a controller 9;

the controller 9 receives real-time temperature information on the drainage channel sent by the temperature sensor, and compares the acquired real-time temperature information on the drainage channel with a set fault temperature value;

the controller 9 determines a control strategy according to comparison between the acquired real-time temperature information on the drainage channel and a set fault temperature value, the exhaust valve 8 receives and executes the control strategy, in the control strategy, the filtering average value of the first temperature sensor 3 in 1 minute of the real-time temperature is Z1, the filtering average value of the second temperature sensor 6 in 1 minute of the real-time temperature is Z2, the filtering average value of the third temperature sensor 11 in 1 minute of the real-time temperature is Z3, Z3-Z1 is a, Z3-Z2 is b, and the control strategy is as shown in table one':

watch I "

In summary, according to the steam lock breaking device and the steam lock breaking method for the steam system drain valve disclosed in this embodiment, the opening of the exhaust valve arranged in the exhaust pipeline is controlled by comparing the temperature of the drain channel with the set fault temperature value, and the exhaust pipeline is communicated with the exhaust hole of the floating ball type drain valve, so that the gas causing the steam lock is exhausted, the common steam lock problem of the dryer in draining is solved, and the reliable and stable operation of the dryer is ensured.

The above-mentioned embodiments are only for convenience of description, and are not intended to limit the present invention in any way, and it will be understood by those skilled in the art that the technical features of the present invention can be changed or modified by the equivalent embodiments without departing from the scope of the present invention.