Steam trap flash steam recovery device

Abstract

The utility model discloses a steam trap flash steam recovery device, which relates to the field of steam recovery, and comprises a box body, a cold water inlet pipe, a water return pipe, an outer conical sleeve and an inner conical sleeve, the interior of the box body is of a hollow structure, the left end of the box body is provided with a butt joint pipe used for being connected with a steam trap, and the bottom of the box body is provided with a water outlet pipe. According to the utility model, the butt joint pipe is connected with the drain valve, so that flash steam discharged by the drain valve directly enters the box body and is primarily cooled by a cooling net formed by the cooling water pipe, condensed water is discharged from the water outlet pipe, residual steam rises to the inner conical sleeve, and the spiral cold water pipe is used for secondarily cooling steam in the inner conical sleeve; therefore, the flash steam is subjected to secondary condensation by using the device, so that condensate water can be recycled.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of steam recovery, specifically relates to a steam recovery device of flash steam of drain valve. BACKGROUND

[0002] In the industrial field of chemical industry, pharmacy and the like, steam is widely used as a main heat source. As a key component of steam system, drain valve functions to prevent steam leakage while discharging condensed water. However, when condensed water is discharged to a low-pressure space through drain valve under high-pressure environment, a large amount of secondary steam (i.e. flash steam) will be generated due to pressure drop.

[0003] At present, most enterprises directly discharge flash steam to the atmosphere without recycling, which not only causes a large amount of energy waste, but also may pollute the environment.

[0004] Therefore, we propose a steam recovery device of flash steam of drain valve to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] In view of the problem that most enterprises directly discharge flash steam to the atmosphere without recycling at present, the utility model provides a steam recovery device of flash steam of drain valve.

[0006] The utility model solves the technical problem by adopting the following scheme: a steam recovery device of flash steam of drain valve, comprising a box body, a cold water inlet pipe, a water return pipe, an outer conical sleeve and an inner conical sleeve, the inside of the box body is a hollow structure, a butt joint pipe for connecting drain valve is arranged at the left end of the box body, and a water outlet pipe is installed at the bottom of the box body;

[0007] The cold water inlet pipe and the water return pipe are symmetrically arranged on both sides of the box body, and a plurality of cooling water pipes penetrating through the box body are connected between the two pipes, and the plurality of cooling water pipes form a cooling net for cooling flash steam;

[0008] The inner conical sleeve is arranged in the outer conical sleeve, and the outer conical sleeve and the inner conical sleeve are fixedly installed at the top opening of the box body, so that the steam in the box body can rise into the inner conical sleeve;

[0009] A spiral cooling water pipe is arranged at the gap between the outer conical sleeve and the inner conical sleeve, the water inlet end of the spiral cooling water pipe is connected with the cold water inlet pipe through a water inlet thin pipe, and the water outlet end of the spiral cooling water pipe is connected with the water return pipe through a water outlet thin pipe.

[0010] Preferably, the end portions of the butt joint pipe and the water outlet pipe are both provided with flanges.

[0011] Preferably, the top portion of the cold water inlet pipe is provided with a pipe joint one for connecting with a cold water pipeline.

[0012] Preferably, the bottom portion of the water return pipe is provided with a pipe joint two for connecting with a water return main pipe.

[0013] Preferably, the water outlet pipe is connected with a recovery pipeline.

[0014] Preferably, the top of the outer conical sleeve and the inner conical sleeve is provided with an exhaust port.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] 1、 the utility model discloses a connecting pipe is connected with the drain valve, makes the flash steam that the drain valve discharged directly enters the cooling net that the cooling water pipe constitutes primary cooling, and the condensed water is discharged from the water outlet pipe, and the remaining steam rises to the inner conical sleeve, and the spiral cooling water pipe carries out secondary cooling to the steam of the inner conical sleeve, thereby utilizing the device to carry out two-stage condensation to the flash steam, so as to recycle the condensed water. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is the front view three-dimensional structure schematic diagram of the utility model;

[0018] Fig. 2 It is the left view three-dimensional structure schematic diagram of the utility model;

[0019] Fig. 3 It is the front view cross section structure schematic diagram of the utility model.

[0020] In the drawing: 1 box, 2 butt joint pipe, 3 water outlet pipe, 41 cold water inlet pipe, 42 backwater pipe, 43 cooling water pipe, 51 outer conical sleeve, 52 inner conical sleeve, 6 exhaust port, 71 water inlet fine tube, 72 water outlet fine tube, 73 spiral cooling water pipe. DETAILED DESCRIPTION

[0021] The utility model is further explained below in connection with the drawings and examples.

[0022] Please refer to Figs. 1-3 The utility model provides a drain valve flash steam recovery device technical scheme:

[0023] Example one:

[0024] According to Figs. 1-3 As shown, including box 1, cold water inlet pipe 41, backwater pipe 42, outer conical sleeve 51 and inner conical sleeve 52, the inside of box 1 is hollow structure, and its left end is provided with butt joint pipe 2 for connecting drain valve, makes the flash steam that drain valve discharged directly enters box 1, and the bottom of box 1 is installed with water outlet pipe 3, and water outlet pipe 3 is connected with recovery pipeline, so as to recycle the condensed water.

[0025] The top of the inlet cold water pipe 41 is provided with a pipe joint 1 for connecting to the cold water pipeline, and the bottom of the return water pipe 42 is provided with a pipe joint 2 for connecting to the return water main pipe. The inlet cold water pipe 41 and the return water pipe 42 are symmetrically arranged on both sides of the box body 1. Multiple cooling water pipes 43 that penetrate the box body 1 are connected between the two. The multiple cooling water pipes 43 form a cooling net for cooling flash steam. The flash steam entering the box body 1 is initially cooled by the cooling net composed of cooling water pipes 43, and the condensate generated is discharged from the outlet water pipe 3.

[0026] The inner conical sleeve 52 is set inside the outer conical sleeve 51. Both the outer conical sleeve 51 and the inner conical sleeve 52 are fixedly installed at the top opening of the box 1, so that the steam in the box 1 can rise into the inner conical sleeve 52. The top of the outer conical sleeve 51 and the inner conical sleeve 52 are equipped with exhaust ports 6.

[0027] A spiral cooling water pipe 73 is installed in the gap between the outer conical sleeve 51 and the inner conical sleeve 52. The inlet end of the spiral cooling water pipe 73 is connected to the inlet cooling water pipe 41 through the inlet capillary pipe 71, and its outlet end is connected to the return water pipe 42 through the outlet capillary pipe 72. The remaining steam in the box 1 rises to the inner conical sleeve 52, and the spiral cooling water pipe 73 performs secondary cooling on the steam in the inner conical sleeve 52. Thus, the flash steam is condensed in two stages by this device, so that the condensate can be recycled.

[0028] In practical use, the steam recovery device for a steam trap of this utility model first connects the connecting pipe 2 to the steam trap, then connects the inlet cold water pipe 41 to the cold water pipeline, connects the return water pipe 42 to the return water main pipe, and connects the outlet water pipe 3 to the recovery pipeline.

[0029] The flash steam discharged from the steam trap enters the housing 1 directly and is initially cooled by the cooling net composed of cooling water pipes 43. The remaining steam rises to the inner conical sleeve 52, where the spiral cooling water pipe 73 performs secondary cooling on the steam in the inner conical sleeve 52. The condensate is discharged from the outlet pipe 3.

[0030] Example 2:

[0031] Based on Example 1, such as Fig. 1 As shown, flanges are provided at the ends of both the connecting pipe 2 and the outlet pipe 3.

Claims

1. A hydrophobic valve flash steam recovery device comprising a housing, a cold water inlet pipe, a return water pipe, an outer conical sleeve and an inner conical sleeve, characterised in that: The inside of the box is a hollow structure, the left end of which is provided with a butt joint pipe for connecting a hydrophobic valve, and the bottom of the box is provided with a water outlet pipe; The cold water inlet pipe and the water return pipe are symmetrically arranged on the two sides of the box, and a plurality of cooling water pipes penetrating through the box are connected between the two pipes, and the plurality of cooling water pipes form a cooling net for cooling the flash steam; The inner conical sleeve is arranged in the outer conical sleeve, and the outer conical sleeve and the inner conical sleeve are fixedly installed at the top opening of the box, so that the steam in the box can rise into the inner conical sleeve; A spiral cold water pipe is arranged in the gap between the outer conical sleeve and the inner conical sleeve, the water inlet end of the spiral cold water pipe is connected with the cold water inlet pipe through a water inlet fine pipe, and the water outlet end of the spiral cold water pipe is connected with the water return pipe through a water outlet fine pipe.

2. The hydrophobic valve flash vapor recovery device of claim 1, wherein: The end of the butt joint pipe and the water outlet pipe is provided with a flange plate.

3. The hydrophobic valve flash vapor recovery device of claim 1, wherein: The top of the cold water inlet pipe is provided with a pipe joint I for connecting with a cold water pipe line.

4. The hydrophobic valve flash vapor recovery device of claim 1, wherein: The bottom of the water return pipe is provided with a pipe joint II for connecting with a water return main pipe.

5. The hydrophobic valve flash vapor recovery device of claim 1, wherein: The water outlet pipe is connected with a recovery pipe line.

6. The hydrophobic valve flash vapor recovery device of claim 1, wherein: The top of the outer conical sleeve and the inner conical sleeve is provided with an exhaust port. The end of the butt joint pipe and the water outlet pipe is provided with a flange plate. The top of the cold water inlet pipe is provided with a pipe joint I for connecting with a cold water pipe line. The bottom of the water return pipe is provided with a pipe joint II for connecting with a water return main pipe. The water outlet pipe is connected with a recovery pipe line. The top of the outer conical sleeve and the inner conical sleeve is provided with an exhaust port.

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