CN212509661U

CN212509661U - Closed self-compensating V-shaped water seal circulating system

Info

Publication number: CN212509661U
Application number: CN202021135409.1U
Authority: CN
Inventors: 陈建忠; 俞金芳
Original assignee: HAIYING METALLURGICAL MACHINERY PLANT QIDONG CITY
Current assignee: HAIYING METALLURGICAL MACHINERY PLANT QIDONG CITY
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-02-09
Anticipated expiration: 2030-06-18

Abstract

The utility model discloses a closed self compensating V type water seal circulation system, including V type water seal, V type water seal one end is equipped with quick trip valve, V type water seal bottom top one side is equipped with the ball-cock assembly, the ball-cock assembly links to each other through moisturizing valve and outside high-order closed water tank, high-order closed water tank bottom adds water with the neck connection of V type water seal respectively through a water adding valve, V type water seal bottom top opposite side is equipped with high liquid level switch and low liquid level switch from top to bottom respectively, V type water seal bottom links to each other through drain valve and drainer, the drainer goes out in the rivers of water end go into low water tank, low water tank passes through the water pump and the stagnant water valve links to each other with high-order closed. The water can be dynamically, automatically, accurately and quantitatively supplemented into the V-shaped water seal according to the gas pressure of the system, the water level difference is automatically established according to the gas pressure, and the gas is reliably sealed. The coal gas escaping V-shaped water seal caused by water shortage is avoided, and water resource waste caused by excessive water addition is also avoided.

Description

Closed self-compensating V-shaped water seal circulating system

Technical Field

The utility model relates to a water seal field specifically is a closed self compensating V type water seal circulation system.

Background

V-shaped water seal principle: the pressure of the coal gas is balanced by the height of the water column, the coal gas is effectively cut off from flowing to the rear end pipe network, and the safety of personnel and equipment during the maintenance of the rear end pipe network is ensured. The problem of the V-shaped water seal of the existing pipe network is as follows: the water adding is static water adding, and once water adding is in place, so that the risk of water seal failure caused by pressure fluctuation of a pipe network exists; in order to reduce the risk of water seal failure, a large amount of water is added for the first time, so that water resource waste is caused; the system is started, water is not effectively recycled, and water resource waste is serious.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model discloses a closed is from compensation V type water seal circulation system.

The technical scheme of the utility model is that: closed self compensating V type water seal circulation system, including the V type water seal, V type water seal one end is equipped with quick cut-off valve, V type water seal bottom top one side is equipped with the ball-cock assembly, the ball-cock assembly passes through the moisturizing valve and links to each other with outside high-order closed water tank, high-order closed water tank bottom adds water with the neck connection of V type water seal respectively through once adding the water valve, V type water seal bottom top opposite side is equipped with high level switch and low level switch from top to bottom respectively, drain valve and drainer are passed through to V type water seal bottom and link to each other, the drainer goes out in the rivers of water end go into low water tank, low water tank passes through water pump and stagnant water valve and.

Furthermore, a high liquid level switch I and a low liquid level switch II are arranged on the upper portion and the lower portion of the high-level closed water tank respectively, the water in the high-level closed water tank is located between the high liquid level switch I and the low liquid level switch II, the low liquid level switch II is connected with a water pump, and the water pump is used for supplementing water to the high-level closed water tank.

Furthermore, a high liquid level switch a and a low liquid level switch b are respectively arranged above and below the low water tank, the water in the low water tank is positioned between the high liquid level switch a and the low liquid level switch b, the low liquid level switch b is connected with a water adding valve, and the water adding valve is used for adding water into the low water tank.

The utility model discloses an useful part: the water can be dynamically, automatically, accurately and quantitatively supplemented into the V-shaped water seal according to the gas pressure of the system, the water level difference is automatically established according to the gas pressure, and the gas is reliably sealed. The coal gas escaping V-shaped water seal caused by water shortage is avoided, and water resource waste caused by excessive water addition is also avoided. The water resource is recycled in the system except for periodic sewage discharge, so that the water resource is saved. Meanwhile, the system reduces the pressure of wastewater treatment for an internal circulation system (except for periodic sewage discharge), and reduces the pollution of the wastewater to the environment.

Drawings

Fig. 1 is a schematic structural view of the present invention;

wherein: 1. v-shaped water seal, 2, a quick cut-off valve, 3, a ball float valve, 4, a water replenishing valve, 5, a high liquid level switch, 6, a low liquid level switch, 7, a high-level closed water tank, 71, high liquid level switches I and 72, low liquid level switches II and 8, a primary water adding valve, 9, a drain valve, 10, a drainer, 11, a low-level water tank, 111, high liquid level switches a and 112, low liquid level switches b and 12, a water pump, 13, a water stop valve, 14 and a water adding valve.

Detailed Description

In order to deepen the understanding of the present invention, the following detailed description is given with reference to the accompanying drawings, which are only used for explaining the present invention and do not constitute a limitation to the protection scope of the present invention.

As shown in figure 1, the closed type self-compensation V-shaped water seal circulating system comprises a V-shaped water seal 1, one end of the V-shaped water seal 1 is provided with a quick cut-off valve 2, one side above the bottom of the V-shaped water seal 1 is provided with a floating ball valve 3, the floating ball valve 3 is connected with an external high-level closed water tank 7 through a water replenishing valve 4, the bottom of the high-level closed water tank 7 is respectively connected with the neck of the V-shaped water seal 1 through a primary water adding valve 8 for adding water, the other side above the bottom of the V-shaped water seal 1 is respectively provided with a high liquid level switch 5 and a low liquid level switch 6 up and down, the high liquid level switch is connected with a control box through a microswitch, the control box controls the quick cut-off valve, when the liquid level at the outlet side of the V-shaped water seal rises to a high liquid level, the small floating ball, the quick cut-off valve at the inlet of the pipeline is closed, so that the reliability of the system is ensured, and the gas is prevented from overflowing backwards to influence the safety of rear-end equipment and maintainers (the action can be realized by electricity). The bottom of the V-shaped water seal 1 is connected with a drainer 10 through a drain valve 9, water at the water outlet end of the drainer 10 flows into a low-level water tank 11, and the low-level water tank 11 is connected with a high-level closed water tank 7 through a water pump 12 and a water stop valve 13.

A high liquid level switch I71 and a low liquid level switch II 72 are arranged above and below the high-level closed water tank respectively, the water level in the high-level closed water tank is located between the high liquid level switch I and the low liquid level switch II, the low liquid level switch II is connected with a water pump, the water pump is used for replenishing water into the high-level closed water tank, the water pump is linked with the high and low liquid level switches, and the water pump reaches the low-level start pump and the high-level stop pump.

The upper part and the lower part of the low-level water tank are respectively provided with a high-level switch a111 and a low-level switch b112, the water in the low-level water tank is positioned between the high-level switch a and the low-level switch b, the low-level switch b is connected with a water adding valve, the water adding valve is used for adding water into the low-level water tank, the water adding valve is linked with the high-level switch and the low-level switch, the valve is opened at the low position, and the valve is closed at the.

1. And opening a primary water adding valve to add water to the V-shaped water seal, wherein the water level difference is formed at two ends due to the existence of gas pressure and the water level difference gradually increases. When water is added to a certain moment, the water level difference at two sides of the V-shaped water seal is not increased any more to form a stable water level difference, the gas under normal working condition pressure can be just sealed by the pressure of a water column formed by the water level difference, and at the moment, water is continuously added to the V-shaped water seal until a certain safety margin is formed at a low liquid level switch of the V-shaped water seal. And simultaneously triggering the V-shaped water seal low liquid level switch to close the primary water feeding valve in a linkage manner and opening the V-shaped water seal water feeding valve in a linkage manner to form automatic water feeding, and enabling the system to enter a normal working state.

2. The V-shaped water seal water replenishing valve is arranged at the high position of the liquid level of the V-shaped water seal air inlet side under the normal working condition, and the water outlet end is provided with a ball float valve. When the pressure fluctuation of the gas in the pipe network rises, the water level difference becomes large, the liquid level descending ball float valve at the air inlet side of the V-shaped water seal is opened to supplement water to the V-shaped water seal so as to ensure that the liquid level at the air inlet side of the V-shaped water seal is stable, and the water level difference under a new working condition is formed. The liquid level of the V-shaped water seal air inlet side slowly recovers to the original water level, and the ball float valve is slowly closed to stop water supplement. The gas is prevented from escaping due to the fact that the liquid level of the air inlet side of the V-shaped water seal drops to an extremely low position. The real-time quantitative water supplement according to the pressure working condition is realized.

3. Under abnormal extreme working conditions, the gas in the pipe network rises, the water level difference is increased, and when the liquid level at the outlet side of the V-shaped water seal rises to a high liquid level, the V-shaped water seal high liquid level switch is triggered to close the quick cut-off valve of the gas pipe network in a linkage manner and give an audible and visual alarm. The working condition is checked by human intervention, and the quick cut-off valve is opened at the right time by human judgment.

4. And (3) preparing ventilation after the overhaul is finished: and closing the water replenishing valve, opening the drain valve, draining the water in the V-shaped water seal to the low-level water tank through the drainer, indicating that the water in the V-shaped water seal is drained completely when the drainer does not drain any more, closing the drain valve to drain water at the moment, and normally ventilating the V-shaped water seal.

5. The water level of the high-level closed water tank is arranged between high and low liquid levels, when the water level is lower than the low water level, the low liquid level switch of the high-level closed water tank is triggered to start the water pump to replenish water to the high-level closed water tank in a linkage manner, and when the water is replenished to the high liquid level, the high liquid level switch of the high-level closed water tank is triggered to stop replenishing water in a linkage manner.

6. The water level of the low-level water tank is arranged between the high level and the low level, and when the water quantity of the system is reduced due to pollution discharge and other reasons. When the water level is lower than the low water level, the low-level water tank low-level switch is triggered to open the water adding valve in a linkage manner to add water to the system, and when the water is added to the high water level, the low-level water tank high-level switch is triggered to close the water adding valve in a linkage manner to stop adding water to the system.

Claims

1. Closed is from compensation V type water seal circulation system, including V type water seal, its characterized in that: v type water seal one end is equipped with quick trip valve, V type water seal bottom top one side is equipped with the ball-cock assembly, the ball-cock assembly passes through the moisturizing valve and links to each other with outside high-order closed water tank, high-order closed water tank bottom adds water with the neck connection of V type water seal respectively through the moisturizing valve once, V type water seal bottom top opposite side is equipped with high level switch and low level switch from top to bottom respectively, V type water seal bottom links to each other through drain valve and drainer, the drainer goes out in the rivers of water end go into low level water tank, low level water tank passes through water pump and stagnant water valve and links to each other with high-order closed water tank.

2. The closed self-compensating V-shaped water-seal circulation system according to claim 1, wherein: the high-level closed water tank is provided with a high liquid level switch I and a low liquid level switch II from top to bottom respectively, the water in the high-level closed water tank is located between the high liquid level switch I and the low liquid level switch II, the low liquid level switch II is connected with a water pump, and the water pump is used for supplementing water into the high-level closed water tank.

3. The closed self-compensating V-shaped water-seal circulation system according to claim 1, wherein: the low-level water tank is provided with a high-level switch a and a low-level switch b from top to bottom respectively, the water in the low-level water tank is positioned between the high-level switch a and the low-level switch b, the low-level switch b is connected with a water adding valve, and the water adding valve is used for adding water into the low-level water tank.

4. The closed self-compensating V-shaped water-seal circulation system according to claim 1, wherein: the primary water adding valve is positioned above the high liquid level switch.

5. The closed self-compensating V-shaped water-seal circulation system according to claim 1, wherein: the water replenishing valve is arranged at the high position of the liquid level of the V-shaped water seal air inlet side under the normal working condition.