CN207744702U - Air source heat pump tobacco flue-curing house - Google Patents

Abstract

The utility model discloses an air source heat pump tobacco flue-curing room, which comprises a baking room. The rear end of the baking room is provided with a heat insulating wall, the top of the heat insulating wall is provided with an air inlet, and the bottom of the heat insulating wall is provided with an air return port; The upper part is connected to the fan table backward, the fan table is provided with a fan room, the heating room adjacent to the heat insulation wall is provided under the fan table, the air duct support is arranged in the heating room, and the condenser is provided on the air duct support ; There is a heat pump main unit at the rear of the heating room; the fan platform extends out of the heating room and its rear end is connected with a supporting column downward; a control cabinet is installed on the left wall of the heating room, and the fan and heat pump main unit are connected to the control cabinet respectively. Connection; maintenance window and fresh air damper are arranged on the right rear wall, and fan is arranged in the fan room. The energy consumption of the utility model is lower than that of the combustion flue-cured room, and it is non-polluting and convenient to be remodeled on the basis of the existing combustion flue-cured room.

Description

Air source heat pump flue-cured room

technical field

The utility model relates to the technical field of tobacco leaf barbecue, in particular to a high-efficiency tobacco curing room.

Background technique

As we all know, my country is the world's largest producer and consumer of flue-cured tobacco, with a planting area of 1 million hectares of flue-cured tobacco and a purchase of 2 million tons of flue-cured tobacco. Since the Eleventh Five-Year Plan, the State Tobacco Monopoly Administration has vigorously promoted the construction of tobacco leaf production infrastructure, and the curing barns have achieved a qualitative leap. A large number of ordinary barns have been transformed into intensive barns, providing reliable equipment guarantee for improving the quality of tobacco leaf curing. Due to the large differences in the quality of tobacco leaves, the amount of tobacco loaded, the curing process, climatic conditions, and the calorific value of coal, the raw coal consumption per kilogram of dry tobacco that is baked is also quite different, ranging from 1.0 to 3.2 kilograms, with an average of About 2 kilograms, and the raw coal consumption of tobacco leaf baking reaches more than 4 million tons every year. In the past 10 years, my country has built a large number of coal-fired tobacco curing rooms.

Coal combustion releases a large amount of mercury, arsenic, zinc and other air pollutants, which is the main source of air pollution in my country. According to estimates, nearly 10 million tons of carbon dioxide, sulfur dioxide, nitrogen monoxide, hydrogen sulfide, smoke and other pollutants are emitted into the atmosphere every year due to tobacco leaf baking, and millions of tons of waste residue are generated. Most of the intensive baking houses in our country are built in clusters, and the concentrated discharge of pollutants caused by coal burning in some areas has become one of the problems with relatively concentrated contradictions every baking season. Therefore, reducing baking cost and reducing environmental pollution has become an urgent problem to be solved.

At present, heat pump drying equipment is gradually appearing, and the emerging mode is usually a newly built mode of baking room and heating room, which appears in the form of a new technology and special equipment for flue-cured tobacco. As a result, the coal-fired tobacco-curing rooms that have been built across the country will gradually be put on hold and become increasingly abandoned. Most of the coal-fired curing rooms invested in the early stage will create benefits for tobacco farmers that are lower than the cost of investment, and the coal-fired tobacco-curing rooms will be abandoned, resulting in a waste of resources. .

Utility model content

The purpose of the utility model is to provide an air source heat pump flue-cured room, which has lower energy consumption than a combustion flue-cured room, is pollution-free and is convenient to be remodeled on the basis of the existing combustion flue-cured room.

In order to achieve the above purpose, the air source heat pump tobacco flue-curing room of the present invention includes a baking room, which is provided with a three-layer tobacco hanging rack, a heat-insulating wall is provided at the rear end of the baking room, and an air inlet is provided on the top of the heat-insulating wall. There is a return air outlet at the bottom of the hot wall; it is characterized in that:

The upper part of the heat insulation wall is connected to the rear of a horizontal fan table, the fan table is provided with a fan room, and the bottom of the fan table is provided with a heating room adjacent to the heat insulation wall. The heating room has the left wall of the heating room, the heating room The right wall and the rear wall of the heating room; the fan room is located directly above the heating room;

The distance between the ground and the lower surface of the fan table is between 2490 and 2510 mm. The heating chamber is equipped with an air duct support that matches the heating room. The air duct support is equipped with a condenser, and the air duct support is connected to an electric auxiliary Bracket, the electric auxiliary bracket is located above the condenser; the electric auxiliary bracket is equipped with an electric auxiliary heating device;

There is a heat pump main unit behind the heating chamber, and the heat pump main unit is located under the fan plate; the condenser is connected to the heat pump main unit through copper pipes;

The fan platform protrudes backwards from the heating chamber and its rear end is connected with a supporting column downward; a control cabinet is installed on the left wall of the heating chamber, and the fan and heat pump main unit are respectively connected to the control cabinet;

The fan platen on the right side of the right wall of the heating room is provided with a right rear wall downwards, and the right rear wall is set at intervals from the right wall of the heating room; the fan platen on the left side of the left wall of the heating room is provided with a left rear wall downwards, The left rear wall is spaced apart from the left wall of the heating chamber;

There is a maintenance window and a fresh air damper on the right rear wall, and there is a baffle on the maintenance window; both the maintenance window and the fresh air damper communicate with the heating chamber, and the fan chamber is equipped with a fan for sending the hot air in the heating chamber into the baking chamber .

A rear observation window for observing the tobacco leaves in the curing chamber is arranged on the insulation wall between the left rear wall and the left wall of the heating chamber.

The rear wall of the heating chamber is made of 5 cm thick polyurethane sheet; the cavity inside the heating chamber is 1.4 m wide.

The lower part of the rear wall of the heating chamber is provided with a damp discharge air door, which is connected with the air return port; the evaporator in the heat pump main unit is facing the humidity discharge air door.

The air return port is a bell mouth with a small outside and a big inside.

The air duct support is made of square tubes connected by bolts.

The utility model has the following advantages:

The utility model is fully compatible with the loading capacity and loading method of the existing coal-fired flue-cured tobacco room, does not require the tobacco farmers to adapt to the new loading method, conforms to the habit of the tobacco farmers in long-term work, and has the advantages of energy saving and consumption reduction of the air source heat pump.

The evaporator is directly facing the humidity exhaust air door, so that the humidity exhaust air heats the evaporator, realizes waste heat utilization, improves the efficiency of the heat pump main unit, and reduces power consumption.

Since the air duct support is made of square pipes connected by bolts, it can be assembled after being transported in place, avoiding the increase in transportation volume and transportation cost caused by transporting the assembled air duct support.

The utility model is suitable for reforming on the basis of the original coal-fired tobacco curing room. After the transformation is completed, the baking room 1 and its internal structure, the fan table 7, the rear observation window 26, the fan room 8, the maintenance window (the right soot cleaning port in the coal-fired tobacco curing room), the air inlet 4 and the fresh air door 17, etc. They are all of the original structure, which improves the utilization rate of the original equipment and greatly reduces the cost of building an air source heat pump flue-curing room. It complies with the National Tobacco Banzong [2009] No. 418 "Technical Specifications for Intensive Curing Room (Trial) Revised Edition" According to the construction requirements, a large number of coal-fired tobacco flue-cured rooms built in China in the past 10 years no longer need to be abandoned and rebuilt, which saves resources, can not only eliminate combustion pollution, reduce energy consumption, but also prevent the initial cost of tobacco farmers from being wasted, and achieve a reduction. The purpose of increasing efficiency, energy saving and environmental protection.

The air return port 5 is a bell mouth with a small outside and a big inside. The side of the air return port 5 facing the baking chamber 1 is the inside (ie, the front side), and the side facing the heating chamber 9 is the outside (ie, the rear side). After being transformed into a bell mouth, the air outlet speed can be increased to make the air return smoother.

Description of drawings

Fig. 1 is the schematic diagram of the right view of the air source heat pump tobacco flue-curing room of the present invention;

Fig. 2 is a schematic diagram of the rear view of the hollow air source heat pump tobacco flue-curing room of the present invention;

Fig. 3 is a schematic diagram of the rear view of the air source heat pump tobacco flue-curing room after the main unit of the heat pump is removed;

Fig. 4 is a schematic cross-sectional view of a thermal insulation wall;

Fig. 5 is a schematic right view of the air source heat pump tobacco flue-curing room at the heating chamber;

Fig. 6 is a schematic left view of the air source heat pump tobacco flue-curing room at the heating chamber;

Fig. 7 is a schematic diagram of the three-dimensional structure of the air duct bracket installed with the condenser;

Fig. 8 is a schematic cross-sectional view of the heating chamber at the air duct bracket.

Detailed ways

As shown in Figures 1 to 8, the air source heat pump tobacco flue-curing room of the present utility model includes a baking room 1, a three-layer tobacco hanging rack 2 is arranged in the baking room 1, and a heat insulating wall 3 is arranged at the rear end of the baking room 1. The top of the heat insulation wall 3 is provided with an air inlet 4, and the bottom of the heat insulation wall 3 is provided with a return air outlet 5;

The upper part of the heat insulation wall 3 is connected backward with a horizontally arranged fan table 7, the fan table 7 is provided with a fan chamber 8, and below the fan table 7 is provided with a heating chamber 9 adjacent to the heat insulation wall 3, and the heating chamber 9 It has the left wall 10 of the heating chamber, the right wall 11 of the heating chamber and the rear wall 91 of the heating chamber; the fan chamber 8 is located directly above the heating chamber 9;

The distance between the ground and the lower surface of the fan table 7 is between 2490 mm and 2510 mm, preferably 2500 mm.

The heating chamber 9 is provided with an air duct support 21 adapted to the heating chamber 9, the air duct support 21 is provided with a condenser 22, the air duct support 21 is connected with an electric auxiliary support 23, and the electric auxiliary support 23 is located above the condenser 22 ; The electric auxiliary support 23 is provided with an electric auxiliary heating device 24;

A heat pump main unit 27 is arranged behind the heating chamber 9, and the heat pump main unit 27 is located below the fan platen 7; the condenser 22 is connected to the heat pump main unit 27 through copper pipes;

The fan platen 7 stretches out of the heating chamber 9 backwards and its rear end is connected with a support column 12 downwards; a control cabinet 25 is installed on the left wall 10 of the heating chamber, and the fan and the heat pump main unit 27 are connected with the control cabinet 25 respectively; The cabinet adopts a microcomputer and a color LCD screen connected with the microcomputer, and is automatically controlled by the microcomputer. The microcomputer is built with a flue-cured tobacco expert curve, which can realize one-button baking. It is an existing technology, and the specific structure will not be described in detail.

The fan platen 7 on the right side of the right wall 11 of the heating chamber is provided with a right rear wall 14 downwards, and the right rear wall 14 is spaced apart from the right wall 11 of the heating chamber; the fan platen 7 on the left side of the left wall 10 of the heating chamber is downwards A left rear wall 15 is provided, and the left rear wall 15 is spaced apart from the left wall 10 of the heating chamber;

The right rear wall 14 is provided with a maintenance window 16 and a fresh air damper 17, and the maintenance window 16 is provided with a baffle plate 20; The hot air flow in 9 is sent into the blower fan of baking chamber 1. The maintenance window 16 can utilize the ash-cleaning port of the original coal-fired tobacco flue-cured room, without additional setting.

The heat insulation wall 3 between the left rear wall 15 and the left wall 10 of the heating chamber is provided with a rear observation window 26 for observing the tobacco leaf curing condition in the curing chamber 1 .

The rear wall of the heating chamber is made of 5 cm thick polyurethane sheet; the cavity inside the heating chamber is 1.4 m wide.

The lower part of the rear wall of the heating chamber 9 is provided with a damp discharge damper 13, which communicates with the air return port 5; Thereby, the evaporator can be heated by the dehumidified air to realize waste heat utilization, improve the efficiency of the heat pump main unit 27, and reduce power consumption.

The air return port 5 is a bell mouth with a small outside and a big inside. The side of the air return port 5 facing the baking chamber 1 is the inside (ie, the front side), and the side facing the heating chamber 9 is the outside (ie, the rear side). After being transformed into a bell mouth, the air outlet speed can be increased to make the air return smoother.

The air duct support 21 is made of a square pipe (preferably a square pipe with a specification of 40*40*2) connected by bolts.

The control cabinet 25, electric auxiliary heating device 24, condenser 22 and heat pump main unit 27 (including compressor, evaporator and throttling device, etc.) and other devices are all existing devices in the field, and the specific structure will not be described in detail.

When using the air source heat pump flue-cured tobacco room of the utility model to flue-cure tobacco, open the fresh air damper 17, start the heat pump main unit 27 and the fan, the fresh air is drawn into the heating chamber 9 from the fresh air damper 17, and when passing through the condenser 22 and the electric auxiliary heating device 24 Heated, hot air enters the top of the baking chamber 1 through the air inlet 4, and passes through the tobacco leaves on the tobacco racks 2 of each layer in the baking chamber 1 from top to bottom to dry the tobacco leaves. The wind carrying the moisture evaporated from the tobacco leaves is discharged through the air return port 5 and the humidity exhaust damper 13, and heats the evaporator of the heat pump main unit 27 facing the moisture exhaust damper 13, thereby realizing waste heat utilization and reducing system power consumption.

The above embodiments are only used to illustrate and not limit the technical solutions of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that the present utility model can still be modified or equivalently replaced. Any modification or partial replacement without departing from the spirit and scope of the present utility model shall fall within the scope of the claims of the present utility model.

Claims (6)

1. The air source heat pump tobacco curing room includes a baking room. There are three layers of tobacco hanging racks in the baking room. There is an insulation wall at the back of the baking room. Tuyere; It is characterized in that: The upper part of the heat insulation wall is connected to the rear of a horizontal fan table, the fan table is provided with a fan room, and the bottom of the fan table is provided with a heating room adjacent to the heat insulation wall. The heating room has the left wall of the heating room, the heating room The right wall and the rear wall of the heating room; the fan room is located directly above the heating room; The distance between the ground and the lower surface of the fan table is between 2490 and 2510 mm. The heating chamber is equipped with an air duct support that matches the heating room. The air duct support is equipped with a condenser, and the air duct support is connected to an electric auxiliary Bracket, the electric auxiliary bracket is located above the condenser; the electric auxiliary bracket is equipped with an electric auxiliary heating device; There is a heat pump main unit behind the heating chamber, and the heat pump main unit is located under the fan plate; the condenser is connected to the heat pump main unit through copper pipes; The fan platform protrudes backwards from the heating chamber and its rear end is connected with a supporting column downward; a control cabinet is installed on the left wall of the heating chamber, and the fan and heat pump main unit are respectively connected to the control cabinet; The fan platen on the right side of the right wall of the heating room is provided with a right rear wall downwards, and the right rear wall is set at intervals from the right wall of the heating room; the fan platen on the left side of the left wall of the heating room is provided with a left rear wall downwards, The left rear wall is spaced apart from the left wall of the heating chamber; There is a maintenance window and a fresh air damper on the right rear wall, and there is a baffle on the maintenance window; both the maintenance window and the fresh air damper communicate with the heating chamber, and the fan chamber is equipped with a fan for sending the hot air in the heating chamber into the baking chamber . 2. The air source heat pump tobacco flue-curing room according to claim 1, characterized in that: a rear observation window for observing the tobacco leaves in the curing chamber is provided on the heat insulation wall between the left rear wall and the left wall of the heating chamber . 3. The air source heat pump tobacco flue-curing room according to claim 1 or 2, characterized in that: the back wall of the heating room is made of 5 cm thick polyurethane board, and the width of the heating chamber is 1.4 meters. 4. The air source heat pump flue-cured tobacco room according to claim 1 or 2, characterized in that: the lower part of the rear wall of the heating chamber is provided with a damp exhaust damper, and the damp exhaust damper is connected with the air return port; the evaporator in the heat pump main unit is facing The humidity damper. 5. The air source heat pump tobacco flue-curing room according to claim 1 or 2, characterized in that: the return air outlet is a bell mouth with a small outside and a big inside. 6. The air source heat pump tobacco flue-curing room according to claim 1 or 2, characterized in that: the air duct support is made of square pipes connected by bolts.