Automatic exhaust flow guide device for heating station

Abstract

The utility model discloses an automatic exhaust flow guide device for a heating station. The automatic exhaust flow guide device comprises an exhaust valve housing, a square heat exchanger and an air outlet barrel, the exhaust valve housing is connected with a drain pipe, the two adjacent sides of the bottom of the square heat exchanger are connected with a first air inlet pipe and a second air inlet pipe respectively, the first air inlet pipe is connected with the exhaust valve housing, a water retaining skirt edge is arranged in the first air inlet pipe, the first air inlet pipe corresponding to the lowest position of the water retaining skirt edge is connected with a water outlet pipe, and the second air inlet pipe is connected with the atmosphere; saturated humid and hot air and water mist water drops are effectively guided through the exhaust valve housing, the water mist water drops are discharged through the drainage pipe after being gathered, the saturated humid and hot air exchanges heat with common air in the square heat exchanger and then is cooled and condensed, and the water content in the part of air is further reduced. The cooled humid and hot air is mixed with the heated common air to generate unsaturated airflow, the unsaturated airflow is safer when discharged outdoors, obvious white smoke is not prone to being generated, and the aim of environmental protection is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automatic exhaust equipment of heat pipeline, specifically relates to a heat station automatic exhaust flow guide device. BACKGROUND

[0002] The heat station is usually constructed near the residential area as the heat exchange node of the heat supply pipe network, and it undertakes the heat exchange task between the external heat supply pipe network and the internal heat supply pipe network of the residential area. As known to all, there will be gas in the pipeline during the operation of the heat supply pipe network, and the accumulation of gas will cause the poor flow of hot water and affect the heating effect. Therefore, an exhaust valve needs to be arranged on the heat pipeline, especially in the heat station as the heat exchange node. It is found in the actual operation process that almost all the saturated hot and humid air is discharged from the exhaust valve of the existing heat station during the exhaust, the humidity is very large, and the exhaust will also be mixed with some water mist and water droplets. The direct discharge of the saturated hot and humid air and the water mist and water droplets will cause corrosion damage to the surrounding equipment, and the discharge to the outdoor will cause local icing and affect the safety of pedestrians around the heat station. Therefore, an automatic exhaust flow guide device suitable for the heat station is needed. SUMMARY

[0003] In view of the problems in the background art, the purpose of the utility model is to provide a heat station automatic exhaust flow guide device, which effectively solves the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] The heat station automatic exhaust flow guide device comprises an exhaust valve cover, a square heat exchanger and an air outlet pipe. The exhaust valve cover is arranged outside the exhaust valve, and a drain pipe is connected to the exhaust valve cover. The bottom of the square heat exchanger is connected with a first air inlet pipe and a second air inlet pipe respectively. Air inlet fans are arranged on the first air inlet pipe and the second air inlet pipe. The first air inlet pipe is connected with the exhaust valve cover, and a water blocking skirt is arranged in the first air inlet pipe. A water outlet pipe is connected to the first air inlet pipe at the lowest part of the water blocking skirt. The second air inlet pipe is connected with the atmosphere.

[0006] The square heat exchanger comprises a plurality of first channels arranged along the front and back directions, and a second channel arranged between adjacent first channels. The first channels are connected with the first air inlet pipe and the air outlet pipe. The second channel is connected with the second air inlet pipe and the air outlet pipe.

[0007] Further, the square heat exchanger comprises a shell and a plurality of heat exchange plates arranged in the shell along the front and back directions. The first channels or the second channels are formed between adjacent heat exchange plates.

[0008] Further, the first channel is provided with a sealing plate on the side facing the second air inlet pipe and the side opposite to the side.

[0009] Further, the shell is fixed on the mounting pipeline of the exhaust valve through a connecting rod.

[0010] Further, the air outlet cylinder is provided with a horn-shaped fairing with a large lower part and a small upper part, the horn-shaped fairing is coaxially provided with a center column, and the center column is provided with spiral guide vanes.

[0011] Further, the outer edge of the spiral guide vane is close to or adheres to the upper opening of the horn-shaped fairing.

[0012] The utility model has the following beneficial technical effects:

[0013] In the utility model, the saturated hot and humid air and water droplets of water mist are effectively guided by the exhaust valve cover shell, the water droplets of water mist are gathered and discharged through the drain pipe, the saturated hot and humid air is cooled and condensed after heat exchange with ordinary air in the square heat exchanger, the water content in the gas is further reduced, the hot and humid air after cooling is mixed with the ordinary air after heating to generate an unsaturated air flow, and the air flow is discharged to the outdoor, so that the safety is improved, the obvious white smoke phenomenon is not easy to generate, and the environmental protection purpose is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole structure schematic view of the utility model embodiment;

[0015] Figure 2 It is an internal structure schematic view of the square heat exchanger, the air outlet cylinder, the first air inlet pipe and the second air inlet pipe in the utility model embodiment; DETAILED DESCRIPTION

[0016] The embodiment of the utility model will be further described in detail in combination with the drawings and the embodiment. The following embodiment is used for explaining the utility model, but cannot be used to limit the scope of the utility model.

[0017] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two;The terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed in a particular orientation and be operated, therefore, it cannot be understood as a limitation on the utility model. In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected;It can be mechanical connection, or electrical connection;It can be directly connected, or indirectly connected through an intermediate medium. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0018] As Figure 1 and Figure 2 The automatic exhaust guide device of the heat station described in the embodiment, as shown, comprises an exhaust valve cover 1, a square heat exchanger 2 and an air outlet pipe 3;The exhaust valve cover 1 is arranged outside the exhaust valve 4, and the exhaust valve cover 1 is connected with a drain pipe 5, the drain pipe 5 is responsible for leading out the gathered water flow, the square heat exchanger 2 is connected with a first air inlet pipe 6 and a second air inlet pipe 7 respectively at the adjacent two sides of the bottom, the first air inlet pipe 6 and the second air inlet pipe 7 are both provided with an air guide fan, the first air inlet pipe 6 is connected with the exhaust valve cover 1 and provided with a water baffle skirt 8 inside, the first air inlet pipe 6 corresponding to the lowest part of the water baffle skirt 8 is connected with a water outlet pipe 9, and the second air inlet pipe 7 is connected with the atmosphere;

[0019] The square heat exchanger 2 comprises a plurality of first channels 10 uniformly distributed along the front and rear directions, and a second channel is arranged between adjacent first channels 10, specifically, the square heat exchanger 2 comprises a shell and a plurality of heat exchange plates uniformly distributed in the shell along the front and rear directions, the shell is fixed on the mounting pipe 12 of the exhaust valve 4 through the connecting rod 11, the first channel 10 or the second channel is formed between adjacent heat exchange plates, the first channel 10 is connected with the first air inlet pipe 6 and the air outlet pipe 3, the second channel is connected with the second air inlet pipe 7 and the air outlet pipe 3, the side of the first channel 10 facing the second air inlet pipe 7 and the side opposite to the side are both provided with an end plate 13, the airflow in the first air inlet pipe 6 can only flow obliquely to the right and up in the first channel 10;The side of the second channel facing the first air inlet pipe 6 and the side opposite to the side are also provided with end plates, and the airflow in the second air inlet pipe 7 can only flow obliquely to the left and up in the second channel.

[0020] The air outlet pipe 3 is provided with a horn-shaped fairing 14 with a large lower part and a small upper part, the horn-shaped fairing 14 is coaxially and fixedly provided with a center column 16 through a cross beam 15, the center column 16 is provided with a spiral guide vane 17, the outer edge of the spiral guide vane 17 is close to or adheres to the upper opening of the horn-shaped fairing 14, the wet hot air flow discharged by the first channel 10 and the dry hot air flow discharged by the second channel are fully mixed under the action of the horn-shaped fairing 14 and the spiral guide vane 17 and discharged through the air outlet pipe 3.

[0021] The working principle of the embodiment is as follows:

[0022] The wet hot air flow discharged by the exhaust valve 4 enters the first air inlet pipe 6, the sputtered water mist and water droplets are gathered and then discharged through the drain pipe 5, the wet hot air flow enters the first channel 10 in the square heat exchanger 2 through the first air inlet pipe 6, at the same time, the air in the external atmosphere is sent into the second channel in the square heat exchanger 2 through the second air inlet pipe 7, the two air flows are subjected to wall heat exchange in the square heat exchanger 2, the temperature of the wet hot air flow is lowered, part of the water is separated out and gathered on the water blocking skirt 8 and then discharged through the water outlet pipe 9, the external atmosphere is heated and becomes dry hot air flow, the wet hot air flow and the dry hot air flow discharged by the square heat exchanger 2 are mixed in the air outlet pipe 3 to generate an unsaturated air flow, which is discharged to the outside, is safer and is not easy to produce obvious white smoke phenomenon, and is beneficial to the environmental protection purpose.

[0023] The embodiments of the utility model are given for the purpose of example and description, and are not exhaustive or limit the utility model to the disclosed forms. Many modifications and changes are obvious to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical application of the utility model, and enable those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A heat station automatic exhaust flow guide device, characterized by, The exhaust valve cover, the square heat exchanger and the air outlet pipe are included; the exhaust valve cover is arranged outside the exhaust valve and the water outlet pipe is connected to the exhaust valve cover; the first air inlet pipe and the second air inlet pipe are connected to the bottom of the square heat exchanger respectively; the air inlet fan is arranged on the first air inlet pipe and the second air inlet pipe; the first air inlet pipe is connected to the exhaust valve cover and the water blocking skirt is arranged in the first air inlet pipe; the water outlet pipe is connected to the first air inlet pipe corresponding to the lowest part of the water blocking skirt; the second air inlet pipe is connected to the atmosphere. The square heat exchanger includes a plurality of first channels which are uniformly distributed along the front and back directions; the second channel is arranged between the adjacent first channels; the first channel is connected to the first air inlet pipe and the air outlet pipe; the second channel is connected to the second air inlet pipe and the air outlet pipe.

2. The automatic vent guide of a heat station according to claim 1, characterized in that, The square heat exchanger includes the shell and a plurality of heat exchange plates which are uniformly distributed in the shell along the front and back directions; the first channel or the second channel is formed between the adjacent heat exchange plates.

3. A heat station automatic venting flow guide according to claim 2, characterized in that, The first channel is provided with the sealing plate on the side facing the second air inlet pipe and the side opposite to the side facing the second air inlet pipe; the second channel is provided with the sealing plate on the side facing the first air inlet pipe and the side opposite to the side facing the first air inlet pipe.

4. A heat station automatic vent guide according to claim 2 or 3, characterized in that The shell is fixed to the installation pipe of the exhaust valve through the connecting rod.

5. The automatic vent guide of a thermal station according to claim 1, characterized in that, The air outlet pipe is provided with the horn-shaped flow guide cover which is large at the bottom and small at the top; the center column is coaxially arranged in the horn-shaped flow guide cover; the spiral flow guide fin is arranged on the center column.

6. A heat station automatic venting flow guide according to claim 5, wherein, The outer edge of the spiral flow guide fin is close to or adheres to the upper opening of the horn-shaped flow guide cover.

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