CN211203625U - Multi-stage displacement drainage device - Google Patents

Abstract

The utility model discloses a multi-level displacement drainage device, which comprises a valve body, a valve cover and a valve core assembly, wherein a drainage cavity on the valve body and a cover cavity on the valve cover form a closed drainage space, the valve core assembly is arranged in the drainage space, and the valve body is also provided with a steam inlet and a water outlet which are communicated with the drainage space; the valve core assembly comprises a first-stage valve core, multi-stage drainage is formed by the first-stage valve core and a second-stage valve core arranged at the bottom of a drainage cavity in the valve body, the problem that interaction of parts of the internal structure of the traditional drainage device is easy to wear, so that the valve is not opened or closed in place, steam leakage, energy consumption and low service life of the device are caused is solved by setting the valve core structure into a multi-stage displacement structure and combining effective matching between the internal parts, the structure is simple, the installation and the operation are convenient, and the valve core assembly has good use value.

Description

Multi-stage displacement drainage device

Technical Field

The utility model relates to the technical field of valves, especially a multistage discharge capacity hydrophobic means.

Background

The drain valve is a valve, also called a steam trap and a drain valve, and is used for draining condensed water, air and carbon dioxide gas in a steam system as soon as possible and simultaneously automatically preventing steam leakage to the maximum extent. Trap valves are of many varieties and each has different properties. The technical performance, the structure and the use function of different drain valves are different at present, most of the drain valves adopt a mechanical intermittent drainage method, and the problems of steam waste and energy waste are caused by the phenomena of valve core abrasion and air leakage which are easily caused in the process.

Disclosure of Invention

The invention of the utility model aims to: to the problem that above-mentioned exists, provide a multistage discharge capacity hydrophobic means, through set up the case structure to multistage discharge capacity formula structure and combine the effective cooperation between the inside spare part, thereby solved the easy wearing and tearing of traditional hydrophobic equipment inner structure spare part interact and lead to the valve to open and close not in place and cause the problem that steam leakage, power consumption and equipment life are low, its simple structure, installation and operation use are convenient, have good use value.

The utility model adopts the technical scheme as follows:

the utility model discloses a multi-stage displacement drainage device, it includes valve body, valve gap and case subassembly, the hydrophobic cavity on the valve body forms the hydrophobic space of confined with the cover chamber on the valve gap, installs the case subassembly in the hydrophobic space, still be equipped with steam inlet and delivery port on the valve body to all communicate with hydrophobic space; the valve core assembly comprises a primary valve core, and the primary valve core and a secondary valve core arranged at the bottom of a drainage cavity in the valve body form multi-stage drainage. Based on the setting of this structure, the utility model discloses a multistage discharge capacity hydrophobic means can carry out staged drainage, the waste of the steam and the energy consumption of great reduction to the different volume of steam condensate water under the new mating reaction of one-level case and two stage valve.

Further, the valve core assembly comprises a primary valve core, a corrugated pipe and a ball body; one end of the corrugated pipe is fixed at the upper end part of the primary valve core through a fixing plate, the other end of the corrugated pipe is connected with a ball body and extends into the primary valve core, and the ball body can seal a drain port at the bottom of the primary valve core under the thermal extension of the corrugated pipe; the upper port of the primary valve core is communicated with the drainage space, and the drainage channel at the lower port of the primary valve core extends into the secondary valve core and is communicated with the water outlet through the drainage cavity in the valve body. Based on the arrangement of the structure, the bellows can stretch and retract under the change of the temperature in the valve body to drive the ball body and the flowing water to be closed and opened, so that the primary valve core is opened and closed, and the communication and the closing of the primary valve core and the secondary valve core are realized.

Furthermore, the fixed plate is fixed on the primary valve core in a sealing manner, and a plurality of micro through holes are formed in the sealing plate; the ball opens the drain passage under the contraction of the corrugated pipe in the low-temperature state. Based on the setting of above-mentioned structure, miniature through-hole can make water under the high temperature steam state and when not condensing to open the second grade valve core, can realize the discharge capacity from controlling the opening and shutting of one-level case with a small amount of condensate water behind the certain effect time, and steam from top to bottom has guaranteed its effective duration in the valve body.

Furthermore, the maximum diameter of the corrugated pipe is not more than 0.85 times of the diameter of the inner cavity of the primary valve core and not less than 0.75 times of the diameter of the inner cavity of the primary valve core; the overall length of the corrugated pipe in a natural state is not more than 0.8 time of the height of the cavity for accommodating the corrugated pipe. The setting based on above-mentioned structure is based on the flexible influence of temperature to the bellows, never controls the opportunity of opening and shutting of one-level case for the case can guarantee its working property to improve greatly under the condition of low power consumption and low consume.

Further, the diameter of the sphere is more than or equal to 1.15 times of the maximum caliber of the port of the drainage channel. Based on the arrangement of the structure, the ball body can control the port of the closed drainage channel, and the air leakage is avoided.

The multi-stage displacement drainage device of the utility model is characterized in that the drainage cavity is arranged in the middle of the valve body, and the upper part of the drainage cavity is hermetically connected with the cover body of the valve cover to form a sealed drainage space; a drainage cavity is arranged at the bottom of the drainage cavity, and the lower end of the drainage cavity is communicated with a drainage port; and a secondary valve core is arranged at the joint of the drainage cavity and the drainage cavity, the secondary valve core is of a hollow structure, and a drainage channel at the bottom of the primary valve core extends into the secondary valve core to be installed in a matched manner and is communicated with the drainage cavity.

Further, the secondary valve core is fixedly and hermetically arranged in the valve body; and a floating block is arranged on the bottom surface of the primary valve core.

Furthermore, the bottom surface of the primary valve core is a conical surface, and the floating blocks are uniformly arranged on the bottom surface of the primary valve core and extend to the position where the floating blocks can be attached to the port of the secondary valve core.

Further, the floating block is a rubber or foam floating block; the floating block is attached to the bottom surface of the primary valve core and forms a positive included angle of 10-15 degrees with the horizontal line.

Based on the arrangement of the structure, when the condensed water is not much, the steam leakage and a small amount of condensed water condensed at low temperature can be discharged when the drainage device works through the air control of the primary valve core; when more the getting into trap of condensate water, it can wholly float its with the one-level case, thereby open outside the second grade valve core realizes a large amount of water drainage hydrophobic means, set up the kicking block in one-level case bottom surface and increased its buoyancy, make its more sensitive action, guarantee its drainage ageing, and the kicking block can also play good sealed effect and the cushioning effect when constantly cooperating with the second grade case of one-level case with the cooperation of second grade case port, thereby the condition emergence that the equipment that the collision of having avoided steam leakage and case caused is fragile, the life and the performance of equipment have been guaranteed.

In the multi-stage displacement drainage device, the steam inlet and the water outlet are positioned on the same horizontal axis, the drainage cavity is higher than the steam inlet, and the drainage cavity is lower than the water outlet; a filter screen is arranged between the steam inlet and the drainage cavity. The arrangement based on the above structure can further ensure that the steam is leaked to a certain extent.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the hydrophobic device has good action sensitivity, the harmful effect among all parts is effectively controlled, and the service performance and the service life of the equipment are effectively controlled.

2. The hydrophobic combination of multistage displacement formula the utility model discloses a hydrophobic equipment structure sets up, and the effectual steam that has reduced leaks, has improved its drainage performance.

3. The valve core is less worn, and the energy consumption is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a multi-stage displacement drainage device of the present invention;

the labels in the figure are: 1-valve body, 11-steam inlet, 12-water outlet, 13-water discharge cavity, 14-drainage cavity, 2-valve cover, 21-cover body, 22-cover cavity, 3-valve core component, 31-primary valve core, 32-corrugated pipe, 33-fixing plate, 34-through hole, 35-ball, 36-drainage channel, 37-floating block, 4-secondary valve core, 5-filter screen and 6-sealing component.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Example 1

As shown in fig. 1, a multi-level displacement drainage device comprises a valve body 1, a valve cover 2 and a valve core assembly 3, wherein a drainage cavity 14 on the valve body 1 and a cover cavity 22 on the valve cover 2 form a closed drainage space, the valve core assembly 3 is installed in the drainage space, and the valve body 1 is also provided with a steam inlet 11 and a water outlet 12 which are both communicated with the drainage space; the valve core assembly 3 comprises a primary valve core 31 which forms multi-stage drainage with a secondary valve core 4 arranged at the bottom of a drainage cavity 14 in the valve body 1. The air inlet 11 and the water outlet on the valve body 1 are positioned on the same horizontal axis, the position of the drainage cavity 14 is higher than the air inlet 11, and the position of the water drainage cavity 13 is lower than the water outlet; a filter screen 5 is arranged between the steam inlet 11 and the drainage cavity 14. The valve core assembly 3 comprises a primary valve core 31, a corrugated pipe 32 and a ball 35; one end of the corrugated pipe 32 is fixed at the upper end of the primary valve core 31 through a fixing plate 33, the other end of the corrugated pipe 32 is connected with a ball 35 and extends into the primary valve core 31, and the ball 35 can seal a port of a drain 36 at the bottom of the primary valve core 31 under the thermal extension of the corrugated pipe 32; the upper port of the primary valve core 31 is communicated with the drainage space, and the drain channel 36 at the lower port thereof extends into the secondary valve core 4 and is communicated with the water outlet 12 through the drainage cavity 13 in the valve body 1. The fixed plate 33 is fixed on the primary valve core 31 in a sealing way, and a plurality of micro through holes 34 are formed in the sealing plate; the ball 35 opens the drain 36 when the bellows 32 in a low temperature state is contracted. The maximum diameter of the bellows 32 is not more than 0.85 times of the diameter of the inner cavity of the primary valve core 31 and not less than 0.75 times of the diameter of the inner cavity of the primary valve core 31; the bellows 32 has an overall length in a natural state of not more than 0.8 times the height of the chamber in which it is housed. The diameter of the ball 35 is 1.15 times or more of the maximum caliber of the port of the drain channel 36. The drainage cavity 14 is arranged in the middle of the valve body 1, and the upper part of the opening of the drainage cavity is hermetically connected with the cover body 21 of the valve cover 2 to form a sealed drainage space; a drainage cavity 13 is arranged at the bottom of the drainage cavity 14, and the lower end of the drainage cavity 13 is communicated with a drainage outlet; and a secondary valve core 4 is arranged at the connecting port of the drainage cavity 13 and the drainage cavity 14, the secondary valve core 4 is of a hollow structure, and a drainage channel 36 at the bottom of the primary valve core 31 extends into the secondary valve core 4 to be installed in a matched manner and is communicated with the drainage cavity 13. The secondary valve core 4 is fixedly and hermetically arranged in the valve body 1; a floating block 37 is arranged on the bottom surface of the primary valve core 31. The bottom surface of the primary valve core 31 is a conical surface, and the floating blocks 37 are uniformly arranged on the bottom surface of the primary valve core 31 and extend to be attached to the port of the secondary valve core 4. The floating block 37 is made of rubber or foam floating block or sponge, and in this embodiment, the sponge is preferably used as the floating block to be bonded or stably installed with the bottom surface of the primary valve core 31, because if the sponge is used, buoyancy can be increased in the floating process of the sponge to enable the sponge to quickly float the primary valve core for drainage, when the drainage quantity is reduced, the impulse can be increased due to the thin water of the sponge, so that the falling speed of the primary valve core 31 can be increased, the secondary valve core can be quickly sealed, and steam leakage can be avoided; the floating block 37 is attached to the bottom surface of the primary valve core 31 and forms a positive included angle of 10-15 degrees with a horizontal line, the angle is set to ensure convenience of equipment installation in the early stage and also ensure sealing matching performance of the floating block and the secondary valve core 4, and meanwhile, the effect of greatly improving the buoyancy of the primary valve core 31 is also met, so that low loss and high matching between equipment are ensured while the action sensitivity of an equipment mechanism is effectively improved, the drainage device of the embodiment is effectively improved on the basis of the traditional drainage device in relevant parameters and structures of the equipment, and the use value of the drainage device is greatly improved.

Claims (10)

1. A multi-stage displacement hydrophobic apparatus, comprising: the steam trap comprises a valve body (1), a valve cover (2) and a valve core assembly (3), wherein a drainage cavity (14) on the valve body (1) and a cover cavity (22) on the valve cover (2) form a closed drainage space, the valve core assembly (3) is installed in the drainage space, and a steam inlet (11) and a water outlet (12) are also formed in the valve body (1) and are communicated with the drainage space; the valve core assembly (3) comprises a primary valve core (31) which forms multi-stage drainage with a secondary valve core (4) arranged at the bottom of a drainage cavity (14) in the valve body (1).

2. The multi-displacement hydrophobic device of claim 1, wherein: the valve core assembly (3) comprises a primary valve core (31), a corrugated pipe (32) and a ball body (35); one end of the corrugated pipe (32) is fixed at the upper end part of the primary valve core (31) through a fixing plate (33), the other end of the corrugated pipe (32) is connected with a ball body (35) and extends into the primary valve core (31), and the ball body (35) can seal a port of a drainage channel (36) at the bottom of the primary valve core (31) under the thermal extension of the corrugated pipe (32); the upper port of the primary valve core (31) is communicated with the drainage space, and a drainage channel (36) at the lower port of the primary valve core extends into the secondary valve core (4) and is communicated with the water outlet (12) through a drainage cavity (13) in the valve body (1).

3. The multi-displacement hydrophobic device of claim 2, wherein: the fixed plate (33) is fixed on the primary valve core (31) in a sealing way, and a plurality of micro through holes (34) are formed in the sealing plate; the ball (35) opens the drain (36) when the bellows (32) in the low temperature state contracts.

4. The multi-displacement hydrophobic device of claim 3, wherein: the maximum diameter of the corrugated pipe (32) is not more than 0.85 times of the diameter of the inner cavity of the primary valve core (31) and not less than 0.75 times of the diameter of the inner cavity of the primary valve core (31); the bellows (32) has an overall length in a natural state of not more than 0.8 times the height of the chamber in which it is housed.

5. The multi-displacement hydrophobic device of claim 3, wherein: the diameter of the sphere (35) is more than or equal to 1.15 times of the maximum caliber of the port of the drainage channel (36).

6. The multi-displacement hydrophobic device of any one of claims 1-5, wherein: the drainage cavity (14) is arranged in the middle of the valve body (1), and the upper part of the opening of the drainage cavity is hermetically connected with the cover body (21) of the valve cover (2) to form a sealed drainage space; a drainage cavity (13) is arranged at the bottom of the drainage cavity (14), and the lower end of the drainage cavity (13) is communicated with a drainage outlet; and a secondary valve core (4) is installed at the connecting port of the drainage cavity (13) and the drainage cavity (14), the secondary valve core (4) is of a hollow structure, and a drainage channel (36) at the bottom of the primary valve core (31) extends into the secondary valve core (4) to be installed in a matched mode and communicated with the drainage cavity (13).

7. The multi-displacement hydrophobic device of claim 6, wherein: the secondary valve core (4) is fixedly and hermetically arranged in the valve body (1); and a floating block (37) is arranged on the bottom surface of the primary valve core (31).

8. The multi-displacement hydrophobic device of claim 7, wherein: the bottom surface of the primary valve core (31) is a conical surface, and the floating blocks (37) are uniformly arranged on the bottom surface of the primary valve core (31) and extend to the position where the floating blocks can be attached to the port of the secondary valve core (4).

9. The multi-displacement hydrophobic device of claim 8, wherein: the floating block (37) is a rubber or foam floating block; the floating block (37) is attached to the bottom surface of the primary valve core (31) and forms a positive included angle of 10-15 degrees with the horizontal line.

10. A multi-displacement hydrophobic device in accordance with claim 2, 3, 4, 5, 7, 8 or 9, wherein: the steam inlet (11) and the water outlet are positioned on the same horizontal axis, the position of the drainage cavity (14) is higher than that of the steam inlet (11), and the position of the drainage cavity (13) is lower than that of the water outlet; a filter screen (5) is arranged between the steam inlet (11) and the drainage cavity (14).

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