CN217383918U

CN217383918U - Embedded type micro-superheated horizontal steam heat accumulator

Info

Publication number: CN217383918U
Application number: CN202220581379.XU
Authority: CN
Inventors: 曾宪鹏; 田晓杰; 代黎; 段炼; 陈世意
Original assignee: Wisdri Engineering and Research Incorporation Ltd
Current assignee: Wisdri Engineering and Research Incorporation Ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-09-06
Anticipated expiration: 2032-03-17

Abstract

The utility model discloses an embedded micro-superheated horizontal steam heat accumulator, which comprises a tank body, wherein the top of the tank body is provided with a first steam pipe, a steam pressure regulating valve group and a heat exchange device, the inlet of the first steam pipe is communicated with the inside of the tank body, the steam pressure regulating valve group is connected with the outlet of the first steam pipe and the inlet of the heat exchange device, the lower part of the heat exchange device is embedded into the tank body, and a steam heat charging unit is arranged in the tank body; the heat exchange pipe part used for heat exchange in the heat accumulator is embedded into the tank body, so that the superheated steam regulated by the pressure regulating valve exchanges heat with high-temperature water in the tank body, and the superheat degree of the superheated steam is over 10 ℃; meanwhile, the end socket of the heat exchange device is exposed out of the heat accumulator tank body so as to conveniently take out the heat exchange device for overhauling or replacing.

Description

Embedded type micro-superheated horizontal steam heat accumulator

Technical Field

The utility model belongs to the technical field of steaming plant and specifically relates to a little overheated horizontal steam heat accumulator of embedded.

Background

The steam heat accumulator is a thermal device for storing steam heat energy. The steam supply system is used for a steam supply system with large heat load fluctuation, and can balance steam supply for the fluctuation load so as to stabilize the operation load of the boiler; the device is used for a waste heat utilization system, can effectively recover heat, has obvious energy-saving effect and obvious environment-friendly effect, and is counted according to engineering examples: the fuel can be saved by about 5% -20% generally. A conventional steam heat accumulator is a variable-pressure heat accumulator with a superheating device, and the heat accumulator is charged and discharged by means of the change of working pressure.

The heat exchange device in the existing heat accumulator is usually fixedly arranged in the tank body and is not easy to overhaul and replace.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a solve above-mentioned problem, provide a little overheated horizontal steam heat accumulator of embedded type, its export steam can reach the degree of superheat more than 10 ℃, and convenient the maintenance.

In order to achieve the above purpose, the technical scheme of the utility model is that: the utility model provides a little overheated horizontal steam heat accumulator of embedded type, includes a jar body, and the top of jar body is provided with first steam pipe, steam pressure regulating valves and heat transfer device, and first steam pipe entry communicates with jar internal phase, and first steam pipe export and heat transfer device entry are connected to steam pressure regulating valves, and internal, the internal steam that is equipped with of heat transfer device lower part embedding jar fills the thermal unit.

The heat exchanger comprises a sealing head and a tube bundle fixedly connected with the sealing head, the sealing head is positioned outside the tank body, and most of the tube bundle penetrates through a fixed tube opening formed in the tank body and is embedded into the tank body and can be taken out for maintenance.

The steam-consuming equipment is characterized in that a partition plate is arranged in the end socket to divide the interior of the end socket into a first cavity and a second cavity, the first cavity is connected with a steam inlet, the second cavity is connected with a steam outlet, the steam inlet is connected with the low-pressure end of the steam pressure regulating valve group, and the steam outlet is communicated with steam-consuming equipment.

The improved heat exchanger is characterized in that the tube bundle is composed of a plurality of U-shaped heat exchange tubes arranged side by side, inlets of the heat exchange tubes are communicated with the first cavity, and outlets of the heat exchange tubes are communicated with the second cavity.

In a further improvement, the heat exchange tube is a light tube or an inner finned tube.

The improved structure is characterized in that a steam-water separation device is arranged at the joint of the tank body and the first steam pipe, and the steam-water separation device is positioned above the liquid level in the tank body.

Further improve, first steam pipe, steam pressure regulating valves and heat transfer device can establish one set ofly or two sets ofly according to the steam quantity, and when setting up to two sets of, aforementioned subassembly can be the symmetry and set up on the jar body.

The steam heating unit comprises a heating steam inlet pipe arranged on the tank body in a penetrating mode and a heating pipe arranged in the tank body and connected with the heating steam inlet pipe, and a plurality of steam spray holes are formed in the heating pipe.

Through the utility model provides a technical scheme has following beneficial effect:

the heat exchange tube part of the heat exchange device in the heat accumulator for heat exchange is embedded into the tank body, so that the superheated steam regulated by the pressure regulating valve exchanges heat with high-temperature water in the tank body to reach a superheat degree of more than 10 ℃; meanwhile, the end socket of the heat exchange device is exposed out of the heat accumulator tank body so as to conveniently take out the heat exchange device for overhauling or replacing.

Drawings

Fig. 1 is an overall schematic diagram of an embodiment of the present invention;

fig. 2 is a schematic view of a heat exchange device in the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 shows that an embedded micro-superheated horizontal steam heat accumulator comprises a tank body 1, wherein the tank body 1 is of a horizontal structure, and a first steam pipe 2, a steam pressure regulating valve group 3 and a heat exchange device 4 are arranged at the top of the tank body 1. The inlet of the first steam pipe 2 is communicated with the interior of the tank body 1, the steam pressure regulating valve group 3 is connected with the outlet of the first steam pipe 2 and the inlet of the heat exchange device 4, the lower part of the heat exchange device 4 is embedded into the tank body 1, and a steam heat charging unit is arranged in the tank body 1.

When the user needs superheated steam, open steam pressure regulating valves 3, make the saturated steam in the upper portion space of jar body 1 flow in

first steam pipe

2, 3 high-pressure ends of 2 exit linkage steam pressure regulating valves of first steam pipe, saturated steam becomes slightly superheated steam after 3 steps down of steam pressure regulating valves, steam gets into heat transfer device 4 afterwards, carries out indirect heat transfer in heat transfer device 4, become the little superheated steam that the superheat degree reaches more than 10 ℃ after the steam heat absorption, can directly deliver to the steam consumer.

As shown in fig. 2, in this embodiment, the heat exchanger 4 includes a head 41 and a tube bundle 42 fixedly connected to the head 41, the head 41 is located outside the tank 1, and most of the tube bundle 42 passes through a fixed pipe opening formed in the tank 1 and is embedded into the tank 1, and can be taken out for maintenance.

Specifically, a partition plate 43 is arranged in the end socket 41 to divide the interior of the end socket 41 into a first chamber 411 and a second chamber 412, the first chamber 411 is connected with a steam inlet 413, the second chamber 412 is connected with a steam outlet 414, the steam inlet 413 is connected with the low-pressure end of the steam pressure regulating valve group 3, and the steam outlet 414 can be connected with a pipeline leading to steam equipment.

In this embodiment, to improve the heat exchange efficiency, the tube bundle 42 is composed of a plurality of U-shaped heat exchange tubes arranged side by side, the inlets of the heat exchange tubes are communicated with the first chamber 411, and the outlets of the heat exchange tubes are communicated with the second chamber 412. In other embodiments, the heat exchange tube can be arranged into a serpentine structure which is sequentially bent from top to bottom, so that the heat exchange stroke is prolonged in a limited space, and the heat exchange area is increased to obtain a better heat exchange effect.

The heat exchange tube is a light tube or an inner finned tube, and the inner finned tube with better heat exchange effect is preferred.

Preferably, a steam distribution device can be arranged in the first chamber 411 of the head 41 to distribute the steam entering the head 41 into the plurality of heat exchange tubes, so as to improve the working efficiency of the heat exchange device 4.

In this embodiment, a steam-water separation device 5 is arranged at the joint of the tank body 1 and the first steam pipe 2, and the steam-water separation device 5 is located above the liquid level in the tank body 1. The steam-water separation device 5 can remove liquid water carried in saturated steam so as to realize better steam supply effect.

In this embodiment, first steam pipe 2, steam pressure regulating valves 3 and heat transfer device 4 all are equipped with two sets ofly, are the symmetry and set up on jar body 1 to improve the work efficiency of heat accumulator. Of course, the number of the first steam pipes 2, the steam pressure regulating valve banks 3 and the heat exchanging devices 4 is not limited to this, and can be adjusted according to actual needs.

In this embodiment, the steam heating unit includes a heating steam inlet pipe 61 penetrating through the tank 1 and a heating pipe 62 disposed in the tank 1 and connected to the heating steam inlet pipe 61, and the heating pipe 62 is provided with a plurality of steam spraying holes. The steam charging unit is a common device in the prior art, and is not described herein.

In addition, still be equipped with inlet tube, drain pipe and the manhole that is used for overhauing on jar body 1.

The specific working process is as follows:

1. opening the water inlet pipe to ensure that the tank body 1 is filled with normal-temperature water to the lowest water level and then closing the water inlet pipe;

2. opening a heat charging steam inlet pipe 61 to enable high-temperature and high-pressure steam from a boiler to enter a heat charging pipe 62, spraying the high-temperature and high-pressure steam to normal-temperature water in the tank body 1 through a steam spraying hole on the heat charging pipe 62, quickly condensing the steam to release heat, improving the temperature of the water, simultaneously enabling the water level in the tank body 1 to rise, and completing heat charging of the heat accumulator when the water level in the tank body 1 reaches the highest when the temperature of the water in the tank body 1 and the steam reach the same temperature;

3. when a user needs to use superheated steam, the steam pressure regulating valve group 3 is opened, the high-temperature high-pressure steam in the upper space in the tank body 1 and the steam flashed by the high-temperature water are separated out by the steam-water separator and then enter the first steam pipe 2, are decompressed by the steam pressure regulating valve group 3 and then enter the heat exchange device 4, are heated by the high-temperature high-pressure water in the tank body 1 in the heat exchange pipe to reach the superheat degree of more than 10 ℃, and are sent to steam consuming equipment through the steam outlet 414 on the end socket 41 of the heat exchange device 4.

The utility model has the advantages as follows:

1. the heat exchange tube part of the heat exchange device in the heat accumulator for heat exchange is embedded into the tank body, so that the superheated steam regulated by the pressure regulating valve exchanges heat with high-temperature water in the tank body to reach the superheat degree of more than 10 ℃;

2. the end socket of the heat exchange device is exposed outside the heat accumulator tank body so as to conveniently take out the heat exchange device for overhauling or replacing.

3. The arrangement of external overheating devices such as a small boiler, an electric heater and the like can be omitted, the investment and the occupied space are saved, and the whole system is compact.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a horizontal steam heat accumulator of little overheated of embedded type which characterized in that: including a jar body, the top of jar body is provided with first steam pipe, steam pressure regulating valves and heat transfer device, and first steam pipe entry communicates with jar internal, and first steam pipe export and heat transfer device entry are connected to steam pressure regulating valves, and it is internal that heat transfer device lower part embedding jar is internal, and the internal steam that is equipped with of jar fills the thermal unit.

2. The horizontal embedded micro-superheated steam heat accumulator of claim 1, wherein: the heat exchange device comprises an end enclosure and a tube bundle fixedly connected with the end enclosure, the end enclosure is positioned outside the tank body, and most of the tube bundle penetrates through a fixed tube opening formed in the tank body to be embedded into the tank body and can be taken out for maintenance.

3. The horizontal embedded micro-superheated steam heat accumulator of claim 2, wherein: the interior of the end socket is divided into a first cavity and a second cavity by a partition plate, the first cavity is connected with a steam inlet, the second cavity is connected with a steam outlet, the steam inlet is connected with the low-pressure end of the steam pressure regulating valve group, and the steam outlet is communicated with steam equipment.

4. The horizontal embedded micro-superheated steam heat accumulator of claim 3, wherein: the tube bundle is composed of a plurality of U-shaped heat exchange tubes arranged side by side, inlets of the heat exchange tubes are communicated with the first cavity, and outlets of the heat exchange tubes are communicated with the second cavity.

5. The horizontal embedded micro-superheated steam heat accumulator of claim 4, wherein: the heat exchange tube is a light tube or an inner fin tube.

6. The horizontal embedded micro-superheated steam heat accumulator of claim 1, wherein: and a steam-water separation device is arranged at the joint of the tank body and the first steam pipe and is positioned above the liquid level in the tank body.

7. The horizontal embedded micro-superheated steam heat accumulator of claim 1, wherein: first steam pipe, steam pressure regulating valves and heat transfer device can establish one set or two sets ofly according to the steam quantity, when setting up to two sets of, aforementioned subassembly can be the symmetry and set up on the jar body.

8. The horizontal embedded micro-superheated steam heat accumulator of claim 1, wherein: the steam heat filling unit comprises a heat filling steam inlet pipe arranged on the tank body in a penetrating mode and a heat filling pipe arranged in the tank body and connected with the heat filling steam inlet pipe, and a plurality of steam spray holes are formed in the heat filling pipe.