CN210344436U

CN210344436U - Exhaust valve for central heating system

Info

Publication number: CN210344436U
Application number: CN201920676290.XU
Authority: CN
Inventors: 吴亚军
Original assignee: Jinan Dongsheng Thermal Power Co Ltd
Current assignee: Jinan Dongsheng Thermal Power Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-04-17
Anticipated expiration: 2029-05-13

Abstract

The utility model relates to a pipeline exhaust apparatus technical field just discloses a discharge valve that central heating system used, the gas vent that sets up on the sealing washer that sets up on the interface terminal surface of valve body and the valve body, the fixed collar that has connect in bottom of valve body annular inner wall has the collar. The utility model discloses a set up the filter screen on the collar, utilize the impurity of filter screen filtration aquatic, avoid the impurity card to cause on the sealing end face of discharge valve sealed not tight and leak water; meanwhile, the air inlet and the air outlet are formed in the air guide rod, air discharged from water is led to a space between a cavity formed between the partition plate and the lower push plate, the lower push plate is pushed downwards along with the increase of the air pressure of the cavity between the partition plate and the lower push plate, the sealing plate is in contact with the mounting ring for sealing, water is prevented from continuously rising, only compressed air is discharged through the air guide port formed in the top of the air guide rod at the moment, and the water leakage phenomenon caused by water leakage along with the air discharge is avoided.

Description

Exhaust valve for central heating system

Technical Field

The utility model relates to a pipeline exhaust apparatus technical field specifically is a discharge valve that central heating system used.

Background

The exhaust valve is applied to exhaust in pipelines such as an independent heating system, a central heating system, a heating boiler, a central air conditioner, a floor heating system, a solar heating system and the like, and is generally arranged at the highest point of each system so as to exhaust gas in the system, and meanwhile, the exhaust valve can not only exhaust gas in the system, but also prevent the system from generating negative pressure to cause harm.

Floating structure in the discharge valve is the working of plastics mostly, after the system operation, plastics floating structure produces the deformation through long-time high temperature water logging, the seepage takes place for serious person, make plastics floating structure can not normally rise, lead to discharge valve hourglass water, simultaneously because the aquatic contains impurity, and just set up a simple dirt separator on the system pipe, can't clear away all impurity, when the impurity card of aquatic is to discharge valve's sealed terminal surface on, the phenomenon of leaking just can appear and take place, for this reason, propose a discharge valve that central heating system used.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a discharge valve that central heating system used possesses the advantage of leak protection water, has solved the problem that the background art provided.

The utility model provides a following technical scheme: an exhaust valve used for a central heating system comprises a valve body, a sealing ring arranged on the end surface of an interface of the valve body and an exhaust port arranged on the valve body, the bottom end of the annular inner wall of the valve body is fixedly sleeved with a mounting ring, the middle part of the mounting ring is clamped with a filter screen, the top end of the annular inner wall of the valve body is fixedly sleeved with a clapboard, the middle part of the clapboard is movably sleeved with an air guide rod, the bottom end of the air guide rod penetrates and extends to the lower part of the partition plate and is fixedly connected with a sealing plate, the outer part of the air guide rod is fixedly sleeved with a lower push plate positioned between the partition plate and the sealing plate, the air guide rod is sleeved with a tension spring of which the upper end and the lower end are respectively fixedly connected with the partition plate and the lower push plate, the bottom end outside the air guide rod is provided with an air inlet, the outer portion of the air guide rod is provided with an air outlet located on the top surface of the lower push plate, and the top end of the outer portion of the air guide rod is provided with an air guide port.

And selecting, wherein the top surface of the mounting ring is movably connected with the bottom surface of the sealing plate, and the inner diameter value of the mounting ring is smaller than the diameter value of the sealing plate.

The air guide rod is square, the bottom end and the top end of the air guide rod are both provided with cavities, and the sum of the height values of the air guide rod and the sealing plate is larger than the distance value between the mounting ring and the partition plate.

Carefully, the outer ring of the lower push plate is provided with a sealing ring, the sealing ring on the lower push plate is connected with the inner wall of the valve body in a sliding mode, and the shape of the lower push plate is concave.

And the air inlet and the air outlet are in through connection through a cavity arranged at the bottom end of the air guide rod.

And in selection, the air guide port is communicated with a cavity arranged at the top end of the air guide rod.

Compared with the prior art, the utility model discloses possess following beneficial effect:

the utility model discloses a set up the filter screen on the collar, utilize the impurity of filter screen filtration aquatic, avoid the impurity card to cause on the sealing end face of discharge valve sealed not tight and leak water; meanwhile, the air inlet and the air outlet are formed in the air guide rod, air discharged from water is led to a space between a cavity formed between the partition plate and the lower push plate, the lower push plate is pushed downwards along with the increase of the air pressure of the cavity between the partition plate and the lower push plate, the sealing plate is in contact with the mounting ring for sealing, water is prevented from continuously rising, only compressed air is discharged through the air guide port formed in the top of the air guide rod at the moment, and the water leakage phenomenon caused by water leakage along with the air discharge is avoided.

Drawings

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

FIG. 2 is a schematic view of the gas discharge state of the present invention;

fig. 3 is the sectioning schematic diagram of the structure air guide rod of the utility model.

In the figure: 1. a valve body; 2. a seal ring; 3. an exhaust port; 4. a mounting ring; 5. a filter screen; 6. a partition plate; 7. an air guide rod; 8. a sealing plate; 9. a lower push plate; 10. a tension spring; 11. an air inlet; 12. an air outlet; 13. and an air guide port.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an exhaust valve for a central heating system comprises a valve body 1, a sealing ring 2 disposed on an interface end surface of the valve body 1, and an exhaust port 3 disposed on the valve body 1, a mounting ring 4 fixedly sleeved at a bottom end of an annular inner wall of the valve body 1, a filter screen 5 fastened at a middle portion of the mounting ring 4, a partition plate 6 fixedly sleeved at a top end of the annular inner wall of the valve body 1, a gas guide rod 7 movably sleeved at a middle portion of the partition plate 6, a sealing plate 8 fixedly connected to a bottom end of the gas guide rod 7 and extending below the partition plate 6, a lower push plate 9 fixedly sleeved at an outer portion of the gas guide rod 7 and located between the partition plate 6 and the sealing plate 8, a tension spring 10 fixedly connected with the partition plate 6 and the lower push plate 9 at an upper end and a lower end respectively sleeved on the gas guide rod 7, an air inlet 11 disposed at a bottom end of the outer portion of, the top end of the outer part of the air guide rod 7 is provided with an air guide opening 13.

Wherein, the top surface of collar 4 and the bottom surface swing joint of closing plate 8, the internal diameter value of collar 4 is less than the diameter value of closing plate 8, is convenient for seal the exhaust passage who is in filter screen 5 position on collar 4, avoids water to continue to rise and the phenomenon of leaking that brings to appear.

Wherein, air guide bar 7's shape is square, avoids air guide bar 7 to appear rotating and causes the influence to extension spring 10's life, and air guide bar 7's bottom and top all set up to the cavity, are convenient for gaseous circulation in order to discharge, and air guide bar 7 and closing plate 8's high value sum is greater than the distance value between collar 4 and the baffle 6, prevents air guide bar 7 from breaking away from on baffle 6 and can not normally up-and-down motion and influence gaseous emission condition and appear.

Wherein, the outer lane of lower push plate 9 is provided with the sealing ring, and the sealing ring on the lower push plate 9 is connected with the inner wall sliding of valve body 1, and the push plate 9 is pushed downwards in the gas compression of being convenient for between the cavity that baffle 6 and lower push plate 9 constitute, makes the closing plate 8 of connecting on the air guide rod 7 and the contact of installing ring 4 seal, and the shape of lower push plate 9 sets up to the spill, is convenient for rise the water backward flow on lower push plate 9, avoids appearing the phenomenon of leaking.

The air inlet 11 and the air outlet 12 are connected through a cavity arranged at the bottom end of the air guide rod 7, so that air can flow conveniently, and the air can enter a cavity formed by the partition plate 6 and the lower push plate 9 to be compressed.

Wherein, air guide port 13 and the cavity through connection that air guide rod 7 top set up are convenient for the gaseous emission after air guide rod 7 descends.

The working principle is as follows: when the valve is used, firstly, the valve body 1 is installed on a pipeline and tightly presses the sealing ring 2, then water is conveyed into the pipeline, when water and gas in the water enter the interior of the valve body 1, impurities are filtered out through the filter screen 5, the gas in the water passes through the filter screen 5 and continuously rises, the gas enters a cavity between the partition plate 6 and the lower push plate 9 along the cavity formed by the air inlet 11 and the bottom end of the gas guide rod 7 and the air outlet 12, along with the increase of the pressure intensity in the cavity, the gas pushes the lower push plate 9 downwards, so that the sealing plate 8 connected with the bottom end of the gas guide rod 7 is contacted and sealed with the mounting ring 4, when the sealing plate 8 is contacted with the mounting ring 4, the gas guide port 13 enters the cavity between the partition plate 6 and the lower push plate 9, the gas is discharged upwards, the gas is discharged from the gas outlet 3, and finally, the sealing plate 8 and the lower push plate 9 are reset by, and (4) finishing.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Simultaneously in the utility model discloses an in the drawing, fill the pattern and just do not do any other injecions for distinguishing the picture layer.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an exhaust valve that central heating system used, includes sealing washer (2) and the gas vent (3) that set up on the interface terminal surface of valve body (1) and valve body (1), its characterized in that: the bottom of the annular inner wall of the valve body (1) is fixedly sleeved with a mounting ring (4), the middle part of the mounting ring (4) is connected with a filter screen (5), the top of the annular inner wall of the valve body (1) is fixedly sleeved with a partition plate (6), the middle part of the partition plate (6) is movably sleeved with a gas guide rod (7), the bottom of the gas guide rod (7) penetrates through and extends to the lower part of the partition plate (6) and is fixedly connected with a sealing plate (8), the outer part of the gas guide rod (7) is fixedly sleeved with a lower push plate (9) positioned between the partition plate (6) and the sealing plate (8), the gas guide rod (7) is sleeved with a tension spring (10) of which the upper end and the lower end are respectively fixedly connected with the partition plate (6) and the lower push plate (9), the bottom of the outer part of the gas guide rod (7) is provided with an air inlet (11), the outer part of the gas guide rod, the top end of the outer part of the air guide rod (7) is provided with an air guide port (13).

2. A vent valve for use in a district heating system according to claim 1, wherein: the top surface of the mounting ring (4) is movably connected with the bottom surface of the sealing plate (8), and the inner diameter value of the mounting ring (4) is smaller than the diameter value of the sealing plate (8).

3. A vent valve for use in a district heating system according to claim 1, wherein: the shape of air guide rod (7) is square, the bottom end and the top end of air guide rod (7) are both set to be the cavity, the sum of the height values of air guide rod (7) and sealing plate (8) is greater than the distance value between mounting ring (4) and baffle (6).

4. A vent valve for use in a district heating system according to claim 1, wherein: the outer ring of the lower push plate (9) is provided with a sealing ring, the sealing ring on the lower push plate (9) is connected with the inner wall of the valve body (1) in a sliding mode, and the lower push plate (9) is concave in shape.

5. A vent valve for use in a district heating system according to claim 1, wherein: the air inlet (11) and the air outlet (12) are communicated through a cavity arranged at the bottom end of the air guide rod (7).

6. A vent valve for use in a district heating system according to claim 1, wherein: the air guide port (13) is communicated with a cavity arranged at the top end of the air guide rod (7).