Steam distribution pocket

Abstract

The utility model provides a steam distributing pocket. The steam distributing pocket comprises a tank body, a condensate separating assembly, a flow guide corrosion-resistant layer and a water tank assembly, the top of the tank body is provided with a steam inlet valve seat, a steam exhaust valve seat, a safety valve seat, a pressure gauge valve seat and a thermometer valve seat, and the bottom is provided with a liquid outlet; the condensate separating assembly is arranged in the inner cavity of the tank body and is used for separating condensate drops in the steam; the diversion corrosion-resistant layer is arranged at the bottom of the inner cavity of the tank body, the upper end surface of the diversion corrosion-resistant layer is inclined, and the lowest points converge at the liquid outlet; the water tank assembly comprises a controller, a water tank, a liquid discharge pipe connected with the water tank and the liquid discharge port, and a liquid outlet pipe connected with a liquid outlet in the bottom of the water tank; automatic control valves controlled by a controller to be opened and closed are arranged on the liquid discharge pipe and the liquid outlet pipe; and a liquid level sensor connected with the controller is arranged on the water tank. The steam distribution pocket has a gas-liquid separation function, can prevent steam from being discharged when condensate water is discharged, and effectively reduces heat loss.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of chemical equipment, especially a kind of steam drum. BACKGROUND

[0002] Steam drum belongs to the pressure vessel in special equipment, and it is the main matching equipment of steam boiler, and its function is to distribute the steam generated when boiler operates to each pipeline.Steam entering steam drum in use process can carry liquid drop, and temperature drop in conveying process can also produce condensate water, and condensate water is accumulated in steam drum, which can reduce the quality of conveying steam, and also can cause corrosion phenomenon, so it needs to retain condensate water and discharge in time.The bottom of existing steam drum is provided with blowdown opening, and condensate water accumulated in steam drum is discharged directly, and this kind of mode can only discharge condensate water accumulated in the bottom of steam drum, does not have the function of steam-water separation, cannot retain liquid drop carried in steam, so excessive water vapor is carried in discharged steam, which affects downstream equipment.In addition, part of steam in steam drum is discharged in the process of directly opening blowdown opening to discharge condensate water, which causes heat loss and affects heat utilization rate. SUMMARY

[0003] Therefore, in order to solve the above technical problems, the utility model provides a steam drum which can intercept water vapor in steam, has the function of gas-liquid separation, can avoid steam from being discharged when condensate water is discharged, and effectively reduces heat loss.

[0004] In order to achieve the above purpose, the technical scheme of the utility model is as follows:

[0005] A steam drum, comprising:

[0006] A tank body, which is provided with a steam inlet valve seat, a plurality of steam outlet valve seats, a safety valve seat, a pressure gauge valve seat and a thermometer valve seat in communication with the inner cavity thereof at the top, and is provided with a liquid discharge opening in communication with the inner cavity thereof at the bottom;

[0007] A condensate separation assembly, which is arranged in the inner cavity of the tank body and is used for separating condensate drops in steam entering the tank body;

[0008] A flow guide corrosion-resistant layer, which is arranged at the bottom of the inner cavity of the tank body, and the upper end surface of the flow guide corrosion-resistant layer is inclined, and the lowest point is collected at the liquid discharge opening; the condensate drops fall on the flow guide corrosion-resistant layer and finally flow and collect at the liquid discharge opening; the flow guide corrosion-resistant layer can guide flow and prevent the tank body from being corroded by condensate;

[0009] The water tank assembly comprises a controller, a water tank, a liquid discharge pipe connected to the top liquid inlet of the water tank at one end and to the liquid discharge port at the other end, and a liquid outlet pipe connected to the bottom liquid outlet of the water tank at one end; the liquid discharge pipe and the liquid outlet pipe are each provided with an automatic control valve controlled to be opened and closed by the controller, and the water tank is provided with a liquid level sensor connected to the controller; when the water level in the water tank reaches a preset height, the liquid level sensor transmits a signal to the controller, the controller controls the automatic control valve on the liquid outlet pipe to be opened and the automatic control valve on the liquid discharge pipe to be closed, and the condensed liquid flows out of the liquid outlet pipe to an external collection device; after the water tank is emptied, the controller controls the automatic control valve on the liquid outlet pipe to be closed, and the upper portion of the automatic control valve on the liquid discharge pipe is further provided with a pressure sensor; when the condensed liquid in the tank body reaches a preset amount, the pressure sensor senses a preset pressure and sends a signal to the controller, the controller controls the automatic control valve on the liquid discharge pipe to be opened, and the condensed liquid enters the water tank.

[0010] Further, the outer wall of the tank body is coated with a heat preservation layer to prevent heat loss, and the tank body is supported by a tank body support seat.

[0011] Further, the condensed liquid separation assembly comprises a wire mesh cover and a drainage rod; the wire mesh cover is a cover body structure with an opening facing upward and a pointed end facing downward, the wire mesh cover is arranged in the area where a plurality of steam valve seats are located, the wire mesh cover plays a role of gas-liquid separation and intercepts water vapor droplets in steam; the drainage rod is vertically suspended above the liquid discharge port, and the upper end of the drainage rod is connected to the bottom lowest point of the wire mesh cover; the liquid separated by the wire mesh cover flows along the wire mesh cover and is collected at the drainage rod and then directly introduced into the liquid discharge port.

[0012] Further, the drainage rod is a wire mesh structure, and the outer wall is provided with a plurality of vertical plate fins for flow guiding and arranged at equal intervals in the circumferential direction.

[0013] Further, the condensed liquid separation assembly further comprises a grid plate, the outer side of the wire mesh cover is provided with a grid plate for intercepting water vapor droplets, and the grid of the grid plate is in a downward inclined state.

[0014] Further, a filter assembly for trapping impurity pairs in the condensed liquid is detachably arranged downstream of the automatic control valve on the liquid outlet pipe.

[0015] Compared with the prior art, the steam drum has the following advantages:

[0016] The utility model discloses a steam distribution header is equipped with condensate separation subassembly, can intercept the liquid drop that steam carries, plays the role of gas-liquid separation, ensures that the steam that discharges does not carry excessive water vapor, and sets up the flow guide corrosion -resistant layer simultaneously, plays the role of anticorrosion and gathers the condensate to the drain port place, and the synergistic effect can be obtained with condensate separation subassembly, the condensed liquid is drained to the drain port place quickly, is collected again by water tank, and the upstream and downstream of water tank are all provided with automatic control valve, can realize when avoiding steam to discharge along with the discharge of condensate water, effectively reduces the heat loss.

[0017] (2) The utility model discloses a condensate separation subassembly structure design is reasonable, both play the role of gas-liquid separation, and can drain the liquid of interception to the drain port place quickly. BRIEF DESCRIPTION OF DRAWINGS

[0018] The accompanying drawings, which form a part of this description, are included to provide a further understanding of the application. The embodiments of the application and its features (including its

[0019] Figure 1 The utility model discloses a steam distribution header's structure schematic diagram for the embodiment of the utility model is shown in the figure.

[0020] Figure 2 For Figure 1 The utility model discloses a steam distribution header's structure schematic diagram for the embodiment of the utility model is shown in the figure.

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] 1-tank body, 2-condensate separation subassembly, 3-flow guide corrosion -resistant layer, 4-water tank subassembly, 5-steam inlet valve seat, 6-steam exhaust valve seat, 7-safety valve seat, 8-pressure gauge valve seat, 9-thermometer valve seat, 10-drain port, 11-heat preservation layer, 12-wire net cover, 13-drainage rod, 14-grating plate, 15-water tank, 16-drain pipe, 17-liquid outlet pipe, 18-automatic control valve, 19-filtering component. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0024] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0025] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. 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.

[0026] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] As shown in Figure 1 and 2 A kind of drum is shown, which includes tank body 1, condensate separation component 2, flow guide corrosion-resistant layer 3, water tank component 4;

[0028] Tank body 1 top is equipped with with its inner cavity communication admission valve seat 5, multiple exhaust valve seat 6, safety valve seat 7, pressure gauge valve seat 8 and thermometer valve seat 9, and the bottom of tank body 1 is equipped with with its inner cavity communication drainage 10;Tank body 1 is coated with heat preservation layer 11 on outer wall, and tank body 1 is supported by tank body support seat;

[0029] Condensate separation component 2 is arranged in the inner cavity of tank body 1, including wire mesh cover 12, drainage rod 13, grating plate 14;Wire mesh cover 12 is the cover body structure with opening upward, tip downward, and wire mesh cover 12 is covered in the area where multiple exhaust valve seat 6 is located;Drainage rod 13 is vertically suspended above drainage 10, and the upper end of drainage rod 13 is connected with the bottom lowest point of wire mesh cover 12;Grating plate 14 is arranged outside wire mesh cover 12, and the grating of grating plate 14 is in the state of downward inclination;

[0030] Flow guide corrosion-resistant layer 3 is arranged at the bottom of the inner cavity of tank body 1, and the upper end surface of flow guide corrosion-resistant layer 3 is inclined, and the lowest point is collected at drainage 10;

[0031] The water tank assembly 4 comprises a controller, a water tank 15, a drain pipe 16 connected at one end to a liquid inlet at the top of the water tank 15 and at the other end to the liquid outlet 10, and a liquid outlet pipe 17 connected at one end to a liquid outlet at the bottom of the water tank 15; the drain pipe 16 and the liquid outlet pipe 17 are each provided with an automatic control valve 18 controlled by the controller, and the liquid outlet pipe 17 is provided downstream of the automatic control valve 18 with a filter assembly 19 which is detachable; the water tank 15 is provided with a liquid level sensor connected to the controller; and the upstream of the automatic control valve 18 on the drain pipe 16 is provided with a pressure sensor connected to the controller.

[0032] The working process of the steam drum is as follows:

[0033] After the steam enters the tank body 1, the steam is distributed and discharged after gas-liquid separation via the grid plate 14 and the wire mesh cover 12, and most of the liquid is collected at the drainage rod 13 and directly introduced into the liquid outlet 10 along the drainage rod 13, and part of the condensed liquid falls onto the corrosion-resistant layer 3 and is collected at the liquid outlet 10 along the corrosion-resistant layer 3; when the condensed liquid at the liquid outlet 10 reaches a preset amount, the pressure sensor senses a preset pressure, the controller controls the automatic control valve 18 on the drain pipe 16 to open, and the condensed liquid enters the water tank 15; when the water level in the water tank 15 reaches a preset height, the controller controls the automatic control valve 18 on the liquid outlet pipe 17 to open and controls the automatic control valve 18 on the drain pipe 16 to close, and the condensed liquid flows out to an external collection device through the liquid outlet pipe 17; after the water tank 15 is emptied, the controller controls the automatic control valve 18 on the liquid outlet pipe 17 to close.

[0034] The above is only a preferred embodiment of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A drum characterized by, The utility model relates to a steam condensate separation device, which comprises: a tank body provided with a steam inlet valve seat, a plurality of steam outlet valve seats, a safety valve seat, a pressure gauge valve seat and a thermometer valve seat at the top thereof and provided with a liquid outlet at the bottom thereof; a condensate separation assembly arranged in the inner cavity of the tank body for separating condensate droplets in the steam entering the tank body; a flow guide corrosion-resistant layer arranged at the bottom of the inner cavity of the tank body, the upper end surface of the flow guide corrosion-resistant layer being inclined, and the lowest point being located at the liquid outlet; a water tank assembly comprising a controller, a water tank, a liquid outlet pipe connected at one end to the liquid inlet at the top of the water tank and at the other end to the liquid outlet, and a liquid outlet pipe connected at one end to the liquid outlet at the bottom of the water tank; an automatic control valve controlled by the controller is arranged on the liquid outlet pipe and the liquid outlet pipe; the water tank is provided with a liquid level sensor connected to the controller.

2. The drum according to claim 1, characterized in that: The outer wall of the tank body is covered with a heat preservation layer, and the tank body is supported by a tank body support seat.

3. The drum according to claim 1, characterized in that: The condensate separation assembly comprises a wire mesh cover and a drainage rod; the wire mesh cover is a cover body structure with an open top and a downward pointed tip, and the wire mesh cover is arranged in the area of the plurality of steam outlet valve seats; the drainage rod is vertically suspended above the liquid outlet, and the upper end of the drainage rod is connected to the lowest point of the bottom of the wire mesh cover.

4. The drum according to claim 3, characterized in that: The drainage rod is a wire mesh structure, and the outer wall is provided with a plurality of vertical plate fins distributed equidistantly in the circumferential direction.

5. The header according to claim 3, wherein: The condensate separation assembly further comprises a grating plate, and the outer side of the wire mesh cover is provided with a grating plate, and the grating of the grating plate is in a downward inclined state.

6. The drum according to claim 1, characterized in that: A filter assembly is detachably arranged downstream of the automatic control valve on the liquid outlet pipe.

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