CN210291394U - Steam trap for steam heat pipe network - Google Patents

Abstract

The utility model provides a steam heat is steam trap for pipe network, including last body and lower body, go up inside entrance, outlet chamber and the collecting chamber of being equipped with of body, the entrance upside is through multistage exhaust chamber and outlet chamber upper end intercommunication, be equipped with non-return assembly in the entrance, this internal floater that is equipped with down, be equipped with the mouth of a river down on the inboard connecting piece of body, the body cavity under forming between connecting piece and the lower body lateral wall, body cavity and outlet chamber intercommunication down, be equipped with the exhaust unit on the exhaust chamber. The utility model discloses beneficial effect: the check assembly is arranged in the inlet cavity to prevent condensed water from flowing backwards, the exhaust cavity is arranged in a multi-stage structure on the upper side of the inlet cavity to prevent the condensed water from flowing into the inlet and then overshooting to impact the inside of the exhaust cavity; when condensed water enters the steam trap, the floating ball moves away from the water passing opening, and water flows out from the outlet; when the buoyancy is smaller than the gravity of the floating ball, the floating ball descends to the initial state and compresses the water passing opening to prevent steam from being discharged.

Description

Steam trap for steam heat pipe network

Technical Field

The utility model belongs to steam trap equipment field especially relates to a steam trap for steam heat pipe network.

Background

The steam trap is applied to the steam heat pipe network and arranged between the steam heat pipe network and the condensed water recovery device, and plays a role in blocking steam and draining water. When a temperature difference exists, steam in the steam heat pipe network is condensed into condensed water, and if the condensed water is not discharged in time, the condensed water can damage equipment in the steam heat pipe network and possibly reduce the working efficiency. When the condensed water is more, the impulsive force of the water at the inlet is also very large, the water is very easy to push into the exhaust chamber, the drainage and steam-blocking functions of the steam trap are affected, and meanwhile, if the air pressure in the steam trap is smaller than the air pressure in the outer side, the backflow phenomenon is very easy to cause. The existing floating ball steam trap does not consider the problems, and the equipment is easily damaged.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a steam trap for steam heating pipe network to solve the above-mentioned problems.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

the utility model provides a steam trap for hot pipe network, is including last body and lower body that link together, it is equipped with the entry to go up body one side upper end, and the opposite side is equipped with the export, go up the inside inlet chamber that communicates with the entry of being equipped with of body, the outlet chamber that communicates with the export and water collecting chamber, the inlet chamber upside is through multistage exhaust chamber and outlet chamber upper end intercommunication, be equipped with non-return assembly in the inlet chamber, the inside floater that is equipped with of body down, be equipped with down the mouth of a river on the inboard connecting piece of body, the floater supports on crossing the mouth of a river, body cavity under the connecting piece and the formation between the body lateral wall down, body cavity and outlet chamber intercommunication down, be equipped with curved spacing net on the inner wall in water collecting chamber, be equipped with spacing frame down on the body inner wall.

Furthermore, a filter screen is arranged in an inlet cavity at the upper side of the non-return assembly.

Further, the lower body is positioned on the lower side of the upper body and connected together through bolts.

Furthermore, the upper end surface of the limiting frame is an arc limiting plate which is in accordance with the size of the arc surface of the floating ball.

Further, it is including fixing last limiting plate and lower limiting plate on the entry intracavity wall to end contrary subassembly, the lower surface that goes up the limiting plate is the conical surface, just go up the limiting plate middle and be equipped with last limiting hole, be equipped with down limiting hole down in the middle of the limiting plate, go up and run through between limiting hole and the lower limiting hole and be equipped with a connecting rod, be equipped with conical dog on the connecting rod, the dog is located the downside of last limiting plate, the connecting rod outside between dog and the lower limiting plate is equipped with the spring, go up the limiting plate and evenly be equipped with a plurality of first through-holes with the dog department of correspondence, be equipped with a plurality of second through-holes on the lower limiting plate.

Furthermore, the inclination angle of the upper surface of the stop block is consistent with that of the lower surface of the upper limiting plate.

Further, the free length of the spring is equal to the distance between the lower surface of the stop block and the upper surface of the lower limiting plate.

Furthermore, the size of the lower surface of the stop block is smaller than that of the upper surface of the upper limiting plate.

Compared with the prior art, steam heat is steam trap for pipe network have following advantage:

the steam trap for steam heating pipe network of the utility model is provided with the non-return component at the inlet cavity to prevent the condensate from flowing backwards, and the exhaust cavity is arranged at the upper side of the inlet cavity to be a multi-step structure to prevent the condensate from overshooting after flowing into the inlet and impacting into the exhaust cavity; when condensed water continuously enters the steam trap, the floating ball is slowly moved away from the water passing opening under the buoyancy action of water, and the condensed water flows out of the water passing opening, enters the outlet cavity and further flows out of the outlet; when the buoyancy is smaller than the gravity of the floating ball, the floating ball descends to an initial state to tightly press the water passing opening, and the steam is prevented from being discharged.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a steam trap for a steam heat pipe network according to an embodiment of the present invention;

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

Description of reference numerals:

1-upper body; 2-an inlet; 3-an outlet; 4-an inlet chamber; 5-an outlet chamber; 6-a water collecting cavity; 7-lower body; 8-floating ball; 9-a limiting net; 10-a limiting frame; 11-arc limiting plate; 12-a connector; 13-water passing port; 14-a filter screen; 15-bolt; 16-an exhaust chamber; 17-upper limiting plate; 18-a lower retainer plate; 19-a connecting rod; 20-a stopper; 21-a spring; 22-a first via; 23-a second via; 24-an exhaust unit.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "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 used merely for convenience of description and for 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. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

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

As shown in figure 1, the steam trap for steam heating pipe network comprises an upper body 1 and a lower body 7 which are connected together, wherein the upper end of one side of the upper body 1 is provided with an inlet 2, the other side of the upper body is provided with an outlet 3, the upper body 1 is internally provided with an inlet cavity 4 communicated with the inlet 2, an outlet cavity 5 communicated with the outlet 3 and a water collecting cavity 6, the upper side of the inlet cavity 4 is communicated with the upper end of the outlet cavity 5 through a multi-step exhaust cavity 16, a non-return component is arranged in the inlet cavity 4, a floating ball 8 is arranged in the lower body 7, a water passing hole 13 is arranged on a connecting piece 12 at the inner side of the lower body 7, the floating ball 8 is propped against the water passing hole 13, a lower body 7 cavity is formed between the connecting piece 12 and the side wall of the lower body 7, the lower body 7 cavity is communicated with the outlet cavity 5, the inner wall of the water, and an exhaust unit is arranged on the exhaust cavity 16. The exhaust cavity 16 is arranged in a multi-step structure on the upper side of the inlet cavity 4, so that the condensate is prevented from flowing into the inlet 2 and then overshooting to impact the exhaust cavity 16.

The exhaust unit is a pressure balance thermal static type diaphragm capsule, which is the prior art and is disclosed in a guide rail type free floating ball trap (application number 2012204056479).

A filter screen 14 is arranged in the inlet cavity 4 at the upper side of the non-return component.

The lower body 7 is located at the lower side of the upper body 1 and is connected together by bolts 15.

The upper end surface of the limiting frame 10 is an arc limiting plate 11 which is in accordance with the size of the arc surface of the floating ball 8, and limits the floating ball 8 together with the limiting net 9.

As shown in fig. 2, the backstop assembly comprises an upper limit plate 17 and a lower limit plate 18 fixed on the inner wall of the inlet chamber 4, the lower surface of the upper limit plate 17 is a tapered surface, an upper limiting hole is arranged in the middle of the upper limiting plate 17, a lower limiting hole is arranged in the middle of the lower limiting plate 18, a connecting rod 19 is arranged between the upper limiting hole and the lower limiting hole in a penetrating way, a conical stop block 20 is arranged on the connecting rod 19, the stop 20 is positioned at the lower side of the upper limit plate 17, a spring 21 is arranged at the outer side of the connecting rod 19 between the stop 20 and the lower limit plate 18, a plurality of first through holes 22 are uniformly formed in the corresponding positions of the upper limiting plate 17 and the stop blocks 20, a plurality of second through holes 23 are formed in the lower limiting plate 18, the conical stop blocks 20 are pressed downwards by the aid of downward impact force, the first through holes 22 are communicated, and the condensate falls down and continuously flows into the water collecting cavity 6 after passing through the second through holes 23.

The upper surface of the stopper 20 is inclined at the same angle as the lower surface of the upper limiting plate 17.

The free length of the spring 21 is equal to the distance between the lower surface of the stopper 20 and the upper surface of the lower limiting plate 18.

The size of the lower surface of the stop block 20 is smaller than that of the upper surface of the upper limiting plate 17, so that the inlet cavity 4 is prevented from being completely sealed by the stop block 20, and condensed water cannot be discharged.

The working process of the embodiment is as follows:

when condensed water continuously enters the steam trap, the floating ball 8 is slowly moved away from the water passing port 13 under the buoyancy action of water, and the condensed water flows out of the water passing port, enters the outlet cavity 5 and further flows out of the outlet 3; when the buoyancy is smaller than the gravity of the floating ball 8, the floating ball 8 descends to the initial state and compresses the water gap 13 to prevent the steam from being discharged; non-condensable gas such as air and the like is discharged from the exhaust cavity 16, when steam enters, the steam enters the pressure balance thermal-static type diaphragm box from the lower opening of the pressure balance thermal-static type diaphragm box along the exhaust cavity 16, and at the moment, the pressure in the pressure balance thermal-static type diaphragm box is increased, so that a switch in the pressure balance thermal-static type diaphragm box is closed, the communication with the upper opening is cut off, and the steam blocking effect is achieved.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The utility model provides a steam trap for steam heat pipe network which characterized in that: including last body and lower body that link together, it is equipped with the entry to go up body one side upper end, and the opposite side is equipped with the export, go up the inside entrance chamber that communicates with the entry of being equipped with of body, with export intercommunication's outlet chamber and water collection chamber, the entrance chamber upside is through multistage exhaust chamber and outlet chamber upper end intercommunication, be equipped with contrary subassembly in the entrance chamber, the inside floater that is equipped with of body down, be equipped with down the mouth of a river on the connecting piece of body inboard down, the floater supports on crossing the mouth of a river, body cavity under forming between connecting piece and the lower body lateral wall, body cavity and outlet chamber intercommunication down, be equipped with curved spacing net on the inner wall in water collection chamber, be equipped with spacing frame on the body inner wall down, be equipped with the exhaust unit on the.

2. The steam trap of claim 1, wherein: a filter screen is arranged in the inlet cavity at the upper side of the non-return component.

3. The steam trap of claim 1, wherein: the lower body is positioned on the lower side of the upper body and connected together through a bolt.

4. The steam trap of claim 1, wherein: the upper end surface of the limiting frame is an arc limiting plate which is in accordance with the size of the arc surface of the floating ball.

5. The steam trap of claim 1, wherein: it includes upper limit board and lower limit board fixed on the entry intracavity wall to end contrary subassembly, the lower surface of upper limit board is the conical surface, just be equipped with upper limit hole in the middle of the upper limit board, be equipped with lower limit hole in the middle of the lower limit board, it is equipped with a connecting rod to go up to run through between limit hole and the lower limit hole, be equipped with conical dog on the connecting rod, the dog is located upper limit board's downside, the connecting rod outside between dog and the lower limit board is equipped with the spring, it evenly is equipped with a plurality of first through-holes with the dog department of correspondence to go up the limit board, be equipped with a plurality of second through-holes on the lower limit board.

6. The steam trap of claim 5, wherein: the upper surface of dog is unanimous with the lower surface inclination of last limiting plate.

7. The steam trap of claim 5, wherein: the free length of the spring is equal to the distance between the lower surface of the stop block and the upper surface of the lower limiting plate.

8. The steam trap of claim 5, wherein: the size of the lower surface of the stop block is smaller than that of the upper surface of the upper limiting plate.

9. The steam trap of claim 1, wherein: pressure balance thermal-static bellows.

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