Modulation tower heat pump efficient utilization device

Abstract

The utility model relates to a kind of modulation tower heat pump high-efficiency utilization device, belong to grain and oil processing technical field.The steam condensate heat source in prior art is not effectively utilized.The technical points are as follows: the top of modulation tower is provided with feed inlet, and the bottom is provided with discharge outlet, and the discharge outlet is connected with discharge scraper blade;The top layer of modulation tower is provided with condensate heating layer, the water inlet of condensate heating layer is connected with steam condensate tank, and the water outlet of condensate heating layer is connected with heat pump unit, and heat pump unit is connected with hot air heater through heat exchange circulation pipeline, and heat pump unit is connected with circulating water pool;The top of modulation tower is provided with material level sensor, and material level sensor transmits signal to control system.The utility model process is continuous and stable, without frequent manual intervention, to maintain high-efficiency operation, reduce manual operation intensity and human error, steam condensate is put into circulating water pool secondary use, and total amount of sewage discharge is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of grain and oil processing technology, specifically to a high-efficiency utilization device for a modulation tower heat pump. Background Technology

[0002] Most large domestic oil processing enterprises use conditioning towers for softening and dehydrating raw materials. The working principle of the conditioning tower is to heat and dry the raw materials by combining hot air drying and indirect steam heating. The conditioning tower has many staggered elliptical tubes inside. Using the principle of heat conduction, low-pressure saturated steam is introduced to indirectly heat the raw materials. After the raw materials absorb heat and rise in temperature, the internal moisture evaporates and reaches the surface of the raw materials, making the moisture distribution in the raw materials uniform and giving them good plasticity. Hot air penetrates the material layer through the air duct and carries away the moisture on the surface of the raw materials, thereby reducing the moisture content of the raw materials. By adjusting the moisture and temperature of the raw materials in the above way, the raw materials are softened, which is conducive to subsequent processes such as crushing, peeling, rolling, and leaching.

[0003] Currently, some factories use steam heating for all layers of their conditioning towers, resulting in ineffective utilization of the heat source of the steam condensate in the workshop and energy waste. Some factories are actively seeking energy-saving solutions, using the steam condensate for heating the upper layer of the conditioning tower. Although this method effectively utilizes some of the heat energy of the steam condensate, the temperature of the steam condensate after heat exchange still reaches about 55 degrees Celsius. However, at this temperature, it is difficult to find a suitable heat exchange object in the workshop as a low-temperature heat source. At the same time, this part of the water source is too hot, and adding it to the circulating water pool as makeup water will increase the burden on the cooling system. If it is discharged externally, it will cause water waste.

[0004] Therefore, there is an urgent need to propose a high-efficiency utilization device for modulation tower heat pumps to solve the problem of ineffective utilization of steam condensate heat source in existing technologies. Utility Model Content

[0005] In view of the above facts, in order to solve the problem of ineffective utilization of steam condensate heat source in the prior art, this utility model designs a high-efficiency utilization device for modulation tower heat pump.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A high-efficiency heat pump utilization device for a modulation tower includes a condensate heating layer, a modulation tower, a discharge scraper, a control system, a steam condensate tank, a circulating water pool, a hot water supply pump, a pneumatic regulating valve, a mass flow meter, a hot air heater, and a heat pump unit.

[0008] The modulation tower is provided with a feed inlet at the top and a discharge outlet at the bottom, and the discharge outlet is connected to a discharge scraper.

[0009] The top layer of the modulation tower is provided with a condensate heating layer. The inlet of the condensate heating layer is connected to a steam condensate tank, and the outlet of the condensate heating layer is connected to a heat pump unit. The heat pump unit is connected to the hot air heater through a heat exchange circulation pipeline, and the heat pump unit is connected to a circulating water tank.

[0010] A level sensor is installed at the top of the modulation tower, and the level sensor transmits signals to the control system.

[0011] The hot water supply pump outlet is equipped with a pneumatic regulating valve and a mass flow meter, and the control system outputs signals to the pneumatic regulating valve and the mass flow meter.

[0012] Furthermore: the level sensor includes an ultrasonic level sensor and a rotary paddle level sensor;

[0013] The rotary level sensor includes a first rotary level sensor and a second rotary level sensor.

[0014] Furthermore, the heat pump unit consists of a compressor, refrigerant, evaporator, and condenser.

[0015] Furthermore, the modulation tower has 12 layers, with the number of layers increasing from bottom to top, and each layer is filled with raw materials.

[0016] Furthermore: the condensate heating layer includes the 11th and 12th layers of the modulation tower, with steam condensate entering from the bottom of the 11th layer and flowing out from the top of the 12th layer after heat exchange.

[0017] Furthermore, a low-level float alarm is installed at the bottom of the steam condensate tank, and the low-level float alarm transmits a signal to the control system.

[0018] The beneficial effects of this utility model are as follows:

[0019] 1. The process of this utility model is continuous and stable, and can maintain efficient operation without frequent manual intervention. The equipment can achieve a fully automated management mode, which not only greatly reduces the intensity of manual operation and human error, but also accurately controls production parameters, further ensuring the consistency of product quality.

[0020] 2. This utility model effectively reduces the total consumption of steam and water resources during the production process, reduces unnecessary energy waste, lowers the core production costs for enterprises, helps enterprises form price and cost advantages in market competition, and significantly enhances overall market competitiveness.

[0021] 3. This utility model enables the secondary use of steam condensate in a circulating water tank, which significantly reduces the total amount of wastewater discharge, meets environmental protection policy requirements, and helps enterprises achieve green and sustainable development. Attached Figure Description

[0022] Figure 1 This is a process flow diagram of the present invention;

[0023] Figure 2 This is a diagram showing the positional relationship between the control system and the steam condensate tank in this utility model;

[0024] Figure 3 This is a process flow diagram of the condensate heating layer in this utility model.

[0025] In the diagram: 1-Condensate heating layer, 2-Modulation tower, 3-Discharge scraper, 4-Control system, 5-Steam condensate tank, 6-Circulating water pool, 7-Hot water supply pump, 8-Pneumatic regulating valve, 9-Mass flow meter, 10-Hot air heater, 11-Low liquid level float alarm, 12-Heat pump unit, 13-Ultrasonic level sensor, 14-First rotary paddle level sensor, 15-Second rotary paddle level sensor. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0027] The terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] The preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0030] Example 1: As Figure 1 As shown, this embodiment of a high-efficiency heat pump utilization device for a modulation tower includes a condensate heating layer 1, a modulation tower 2, a discharge scraper 3, a control system 4, a steam condensate tank 5, a circulating water pool 6, a hot water supply pump 7, a pneumatic regulating valve 8, a mass flow meter 9, a hot air heater 10, and a heat pump unit 12.

[0031] The modulation tower 2 is provided with a feed inlet at the top and a discharge outlet at the bottom, and the discharge outlet is connected to a discharge scraper 3;

[0032] The top layer of the modulation tower 2 is provided with a condensate heating layer 1. The inlet of the condensate heating layer 1 is connected to the steam condensate tank 5, and the outlet of the condensate heating layer 1 is connected to the heat pump unit 12. The heat pump unit 12 is connected to the hot air heater 10 through a heat exchange circulation pipeline, and the heat pump unit 12 is connected to the circulating water tank 6.

[0033] A material level sensor is installed at the top of the modulation tower 2, and the material level sensor transmits signals to the control system 4.

[0034] The outlet of the hot water supply pump 7 is equipped with a pneumatic regulating valve 8 and a mass flow meter 9, and the control system 4 outputs signals to the pneumatic regulating valve 8 and the mass flow meter 9.

[0035] More specifically: the level sensor includes an ultrasonic level sensor 13 and a rotary paddle level sensor;

[0036] The rotary level sensor includes a first rotary level sensor 14 and a second rotary level sensor 15.

[0037] The ultrasonic level sensor 13 is used to control the rotation speed of the discharge scraper 3. The discharge scraper 3 adopts a variable frequency motor. When the material level in the modulation tower 2 is higher than the set value, the variable frequency motor automatically slows down. When the material level is lower than the set value, the variable frequency motor automatically speeds up. This can ensure the stability of the material level in the modulation tower 2, so that the raw material and steam condensate can exchange heat fully and reduce the risk of false alarms from the ultrasonic level sensor 13.

[0038] The rotary paddle level sensor is used to modulate the high and low material level alarm of the tower 2. When the rotary paddle level sensor alarms, the variable frequency motor of the discharge scraper 3 will automatically stop, reducing equipment damage caused by material blockage.

[0039] More specifically: The heat pump unit 12 is composed of a compressor, refrigerant, evaporator and condenser. The heat pump unit 12 is a high-efficiency energy-saving device that makes full use of low-temperature heat energy. Its working principle is to force heat from a low-temperature object to a high-temperature object in a reverse circulation manner. It consumes only a small amount of electrical energy to obtain a large amount of heat supply. It can effectively utilize low-grade heat energy that is difficult to apply to achieve the purpose of energy saving.

[0040] More specifically: the modulation tower 2 has 12 layers, with the number of layers increasing from bottom to top, and each layer is filled with raw materials.

[0041] More specifically: the condensate heating layer 1 includes the 11th and 12th layers of the modulation tower 2, with steam condensate entering from the bottom of the 11th layer and flowing out from the top of the 12th layer after heat exchange.

[0042] More specifically: After precise calculation, the water supply flow rate is set, and during operation, the pneumatic regulating valve 8 automatically adjusts the valve opening degree according to the set water supply flow rate to ensure a stable flow rate and heat source supply.

[0043] More specifically: A low-level float alarm 11 is installed at the bottom of the steam condensate tank 5. The low-level float alarm 11 transmits a signal to the control system 4 to prevent the liquid level in the steam condensate tank 5 from being too low, which would cause the hot water supply pump 7 to run dry and damage the pump body.

[0044] More specifically: the device uses flange connections and welding to ensure the equipment is detachable, so as to facilitate subsequent maintenance and management.

[0045] More specifically: the raw material enters from the top of the modulation tower 2 and flows out from the bottom, into the discharge scraper 3;

[0046] The steam condensate from the steam condensate tank 5 is pumped out by the hot water supply pump 7 and enters the condensate heating layer 1 of the modulation tower 2 for heat exchange. The raw material undergoes indirect heat exchange with the steam condensate during its descent. The temperature of the steam condensate after heat exchange is approximately 68 degrees Celsius. After heat exchange, it flows out from the condensate heating layer 1 and into the heat pump unit 12 for heating. The temperature of the steam condensate can be raised to approximately 85 degrees Celsius again. The heated steam condensate then enters the hot air heater 10 for heat exchange. The temperature of the steam condensate after heat exchange is approximately 55 degrees Celsius. The heated steam condensate then re-enters the heat pump unit 12 for cooling, reducing the temperature to approximately 30 degrees Celsius, which meets the water supply requirements of the circulating water tank. The cooled steam condensate then enters the circulating water tank 6.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; as long as there is no structural conflict, the features in the specific embodiments disclosed in this application can be combined with each other in any way, and will not cause the substance of the corresponding technical solutions to deviate from the scope of the technical solutions of this utility model.

[0048] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-efficiency utilization device for a modulation tower heat pump, characterized in that, It includes a condensate heating layer (1), a modulation tower (2), a discharge scraper (3), a control system (4), a steam condensate tank (5), a circulating water pool (6), a hot water supply pump (7), a pneumatic regulating valve (8), a mass flow meter (9), a hot air heater (10), and a heat pump unit (12). The modulation tower (2) is provided with a feed inlet at the top and a discharge outlet at the bottom, and the discharge outlet is connected to a discharge scraper (3). The top layer of the modulation tower (2) is provided with a condensate heating layer (1). The inlet of the condensate heating layer (1) is connected to the steam condensate tank (5), and the outlet of the condensate heating layer (1) is connected to the heat pump unit (12). The heat pump unit (12) is connected to the hot air heater (10) through a heat exchange circulation pipeline. The heat pump unit (12) is connected to the circulating water tank (6). A level sensor is installed at the top of the modulation tower (2), and the level sensor transmits signals to the control system (4). The outlet of the hot water supply pump (7) is equipped with a pneumatic regulating valve (8) and a mass flow meter (9), and the control system (4) outputs a signal to the pneumatic regulating valve (8) and the mass flow meter (9).

2. The high-efficiency utilization device for a modulation tower heat pump according to claim 1, characterized in that, The material level sensor includes an ultrasonic material level sensor (13) and a rotary paddle material level sensor; The rotary level sensor includes a first rotary level sensor (14) and a second rotary level sensor (15).

3. The high-efficiency utilization device for a modulation tower heat pump according to claim 1, characterized in that, The heat pump unit (12) consists of a compressor, refrigerant, evaporator and condenser.

4. The high-efficiency utilization device for a modulation tower heat pump according to claim 1, characterized in that, The modulation tower (2) has 12 layers, with the number of layers increasing from bottom to top, and each layer is filled with raw materials.

5. The high-efficiency utilization device for a modulation tower heat pump according to claim 4, characterized in that, The condensate heating layer (1) includes the 11th and 12th layers of the modulation tower (2). Steam condensate enters from the bottom of the 11th layer and flows out from the top of the 12th layer after heat exchange.

6. The high-efficiency utilization device for a modulation tower heat pump according to claim 1, characterized in that, The steam condensate tank (5) is equipped with a low liquid level float alarm (11) at the bottom, and the low liquid level float alarm (11) transmits a signal to the control system (4).

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