Steam heating temperature control device

Abstract

The utility model relates to the technical field of steam heating, and discloses a steam heating temperature control device which comprises a heat preservation shell and a flow guide plate arranged in an inner cavity of the heat preservation shell, a steam heating cavity is formed by the flow guide plate and the inner top of the heat preservation shell, and a condensate water preheating cavity is formed by the flow guide plate and the bottom of the heat preservation shell. Through cooperation of a heat preservation shell, a sealing assembly, a flow guide plate, a condensate water heat exchange cavity and a pre-heat exchange assembly, condensate water generated after steam exchanges heat with cold fluid in a heat exchange coil can be gathered on the flow guide plate, and after the condensate water is gathered by a certain depth, the sealing assembly is opened to enable the high-heat condensate water to fall into the condensate water heat exchange cavity, so that the heat exchange efficiency is improved. And the cold fluid in the multiple sets of preheating coils is preheated before steam heating, so that the heating effect on the cold fluid is improved, the utilization rate of high-heat condensate water generated by condensation is increased, and the heating efficiency of the cold fluid is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to steam heating technical field, concretely to a steam heating temperature control device. BACKGROUND

[0002] The steam heating device is generally composed of a heat exchanger and a drain device, the fluid in the heat exchanger is divided into two streams, one stream is generally steam (hot fluid), and the other stream is cold fluid (liquid, gas or multiphase fluid), during the heat exchange process, the steam is generally heat-released in a constant pressure state, condensed into saturated liquid, and then discharged;

[0003] In the prior art, the utility model content of the Chinese utility model with the application number CN202322627596.5 discloses a steam heater temperature control device, which comprises a heater body and a double-flange capillary liquid level transmitter, the heater body is internally provided with a heat exchange coil, the lower end of the heater body is provided with a temperature detector, the detection probe of the temperature detector extends into the heater body, the side end of the heater body is provided with an air inlet pipe and a condensate water drain pipe, the lower end of the air inlet pipe is provided with a negative pressure pressure-taking pipe, the condensate water drain pipe is provided with a positive pressure pressure-taking pipe, a flow meter and an electromagnetic valve, the double-flange capillary liquid level transmitter is arranged at the side end of the heater body, and the positive and negative pressure brass capillary tubes of the double-flange capillary liquid level transmitter are connected with the positive pressure pressure-taking pipe and the negative pressure pressure-taking pipe respectively. The utility model has the advantages of being capable of detecting the condensate water level and temperature, accurately discharging the condensate water, and thus performing temperature control work;

[0004] Although the above technical scheme can effectively discharge the condensate water, the condensate water generated after the steam heat exchange still has a certain amount of heat, and the direct discharge reduces the waste heat recovery utilization rate of the condensate water, thereby causing part of the heat to be lost and the efficiency of the steam heating to be further improved, and therefore we need to propose a steam heating temperature control device. UTILITY MODEL CONTENT

[0005] The utility model discloses a kind of steam heating temperature control devices, by being provided with condensate water collection cavity, and be provided with cold fluid preheating coil, increase the contact area of condensate water and cold fluid, facilitate the condensate water with preheating to cold fluid heat exchange, speed up the preheating effect to cold fluid, to improve the heating effect to cold fluid, further improve steam efficiency. To solve the problems raised in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of steam heating temperature control device, comprising:

[0007] Heat preservation shell body, and the flow guide plate being arranged in the inner chamber of heat preservation shell body, the flow guide plate and the top portion of heat preservation shell body form steam heating chamber, the flow guide plate and the bottom of heat preservation shell body form condensate water preheating chamber;

[0008] The pre-heat exchange assembly and the pre-heat assembly are arranged in the condensate water pre-heating cavity, the top of the heat preservation shell is provided with an inner tube barrel, and a sealing assembly for sealing the guide plate is arranged on the inner tube barrel.

[0009] The pre-heat exchange assembly comprises a water inlet tee pipe, three groups of pre-heat coils and a water outlet tee pipe, one end of the three groups of pre-heat coils is communicated with the water outlet end of the water inlet tee pipe, the other end of the three groups of pre-heat coils is communicated with the water inlet end of the water outlet tee pipe, the water outlet end of the water outlet tee pipe is communicated with a connecting pipe penetrating the guide plate, and one end of the connecting pipe is communicated with a heat exchange coil arranged in the steam heating cavity.

[0010] Preferably, the water inlet end of the water inlet tee pipe is communicated with a cold water pipe penetrating the heat preservation shell, one end of the heat exchange coil opposite to the connecting pipe is communicated with a hot water pipe penetrating the heat preservation shell, and the heat exchange coil is arranged in the steam heating cavity in a spiral shape.

[0011] Preferably, the steam heating cavity is arranged in a concave shape in section, and a tapered groove for condensate water accumulation is formed in the upper surface of the guide plate.

[0012] Preferably, the sealing assembly comprises a pneumatic cylinder and a sealing cone plate, the pneumatic cylinder is installed at the bottom of the inner tube barrel, the sealing cone plate is arranged in the steam heating cavity, the telescopic end of the pneumatic cylinder penetrates the inner tube barrel and is fixedly connected to the upper surface of the sealing cone plate, and a sealing plug is arranged in the middle of the lower surface of the sealing cone plate and is inserted into the middle of the guide plate.

[0013] Preferably, the upper end of each of the two groups of stabilizing sleeve rods is fixedly connected to the bottom of the inner tube barrel.

[0014] Preferably, the pre-heat assembly comprises two groups of mounting beams mounted in the condensate water pre-heating cavity, and heating rods penetrating the three groups of pre-heat coils are arranged on the opposite sides of the two groups of mounting beams, and the three groups of heating rods are arranged in parallel.

[0015] Preferably, the upper end of the outer side of the heat preservation shell is provided with a steam inlet pipe communicated with the steam heating cavity, and the lower end of the outer side of the heat preservation shell is provided with a condensate water outlet pipe communicated with the condensate water pre-heating cavity.

[0016] Preferably, the outer side of the heat preservation shell is provided with a controller, the steam heating cavity is provided with a first temperature sensor and a first liquid level sensor electrically connected with the controller, and the condensate water pre-heating cavity is provided with a second temperature sensor and a second liquid level sensor electrically connected with the controller.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] The utility model mainly through the cooperation between the heat preservation shell body, sealing assembly, deflector, condensed water heat exchange cavity and pre -heat exchange subassembly, condensed water that steam exchanges heat with the cold fluid in heat exchange coil produces gathers on the deflector, when condensed water gathers certain depth, sealing assembly opens and makes the condensed water of high heat falls in condensed water heat exchange cavity, carries out preheating to the cold fluid in multiple preheating coil before steam heating, thereby improves the heating effect to the cold fluid, improves the utilization rate of the condensed water of high heat that condensed produces, to improve the heating efficiency to the cold fluid. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is whole structure schematic diagram of the utility model;

[0020] Figure 2 It is inside structure schematic diagram of heat preservation shell body of the utility model;

[0021] Figure 3 It is sectional structure schematic diagram of heat preservation shell body of the utility model;

[0022] Figure 4 It is preheating assembly structure schematic diagram of the utility model.

[0023] In the drawing: 1, heat preservation shell body;2, controller;3, steam inlet pipe;4, condensed water discharge pipe;5, inner tube cylinder;6, sealing assembly;61, air cylinder;62, sealing cone plate;63, sealing plug;64, stabilizing sleeve rod;7, deflector;8, steam heating cavity;9, condensed water preheating cavity;10, cold water pipe;11, hot water pipe;12, pre -heat exchange subassembly;121, water inlet tee pipe;122, preheating coil;123, water outlet tee pipe;13, connecting pipe;14, heat exchange coil;15, preheating assembly;151, mounting beam;152, heating rod;16, first temperature sensor;17, second temperature sensor;18, first liquid level sensor;19, second liquid level sensor. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-4 The utility model provides a technical scheme: a steam heating temperature control device, which comprises:

[0026] The heat preservation shell 1 and the guide plate 7 arranged in the inner cavity of the heat preservation shell 1 form a steam heating cavity 8 at the top of the heat preservation shell 1, and the guide plate 7 and the bottom of the heat preservation shell 1 form a condensed water preheating cavity 9;

[0027] The preheat exchange assembly 12 and the preheating assembly 15 arranged in the condensed water preheating cavity 9, and the inner pipe cylinder 5 arranged at the top of the heat preservation shell 1, and the sealing assembly 6 arranged on the inner pipe cylinder 5 to seal the guide plate 7;

[0028] The preheat exchange assembly 12 comprises a water inlet tee pipe 121, three groups of preheating coil pipes 122 and a water outlet tee pipe 123, one end of the three groups of preheating coil pipes 122 is connected with the water outlet end of the water inlet tee pipe 121, the other end of the three groups of preheating coil pipes 122 is connected with the water inlet end of the water outlet tee pipe 123, the water outlet end of the water outlet tee pipe 123 is connected with the connecting pipe 13 penetrating through the guide plate 7, one end of the connecting pipe 13 is connected with the heat exchange coil pipe 14 arranged in the steam heating cavity 8, the cold fluid is conveniently divided into three streams through the water inlet tee pipe 121, the flow path is reduced and the heat exchange area is increased, so that the preheated cold fluid is collected through the water outlet tee pipe 123 and then introduced into the heat exchange coil pipe 14, and the heating efficiency of the cold fluid is improved.

[0029] The water inlet end of the water inlet tee pipe 121 is connected with the cold water pipe 10 penetrating through the heat preservation shell 1, the heat exchange coil pipe 14 opposite to the connecting pipe 13 is connected with the hot water pipe 11 penetrating through the heat preservation shell 1, the heat exchange coil pipe 14 is arranged in the steam heating cavity 8 in a spiral shape, the shape of the heat exchange coil pipe 14 is arranged the same as the shape of the preheating coil pipe 122, and the heat exchange area is increased, so that the heating efficiency of the cold fluid is improved and the heating time of the cold fluid is shortened.

[0030] The steam heating cavity 8 is arranged in a concave shape in cross section, the upper surface of the guide plate 7 is provided with a tapered groove for collecting condensed water, the shape of the steam heating cavity 8 is arranged to reduce the flow area of the steam, so that the heat exchange coil pipe 14 can better exchange heat with high-temperature steam, and the heating efficiency of the cold fluid is improved.

[0031] The sealing assembly 6 comprises a cylinder 61 and a sealing cone plate 62, the cylinder 61 is installed at the bottom of the inner pipe cylinder 5, the sealing cone plate 62 is arranged in the steam heating cavity 8, the telescopic end of the cylinder 61 penetrates through the inner pipe cylinder 5 and is fixedly connected to the upper surface of the sealing cone plate 62, the lower surface of the sealing cone plate 62 is provided with a sealing plug 63 inserted into the middle part of the guide plate 7, the position of the sealing cone plate 62 is conveniently controlled through the cylinder 61, the condensed water falls into the condensed water preheating cavity 9 when the sealing cone plate 62 is opened, and the condensed water can be collected and stored when the sealing cone plate 62 is closed, so that the condensed water in the condensed water preheating cavity 9 is replaced when the temperature of the condensed water is lost, and the utilization rate of the condensed water is improved.

[0032] The upper surface of the sealing cone plate 62 is fixedly connected with two groups of stabilizing sleeve rods 64, the upper ends of the two groups of stabilizing sleeve rods 64 are fixedly connected to the bottom of the inner tube 5, the stability of the sealing cone plate 62 is improved when moving, thereby improving the sealing effect between the steam heating cavity 8 and the condensed water preheating cavity 9.

[0033] The preheating assembly 15 includes two groups of mounting beams 151 installed in the condensed water preheating cavity 9, the opposite sides of the two groups of mounting beams 151 are provided with heating rods 152 penetrating through the three groups of preheating coil pipes 122, and the three groups of heating rods 152 are arranged in parallel, the condensed water preheating cavity 9 is preheated before the condensed water is gathered by using the heating rods 152, thereby guaranteeing the preheating effect of the cold fluid.

[0034] The outer side of the upper end of the heat preservation shell 1 is provided with a steam inlet pipe 3 connected with the steam heating cavity 8, the outer side of the lower end of the heat preservation shell 1 is provided with a condensed water discharge pipe 4 connected with the condensed water preheating cavity 9, the steam inlet pipe 3 and the condensed water discharge pipe 4 are both provided with electromagnetic valves (not marked in the figure) electrically connected with the controller 2, thereby facilitating the inlet of steam and the discharge of condensed water.

[0035] The outer side of the heat preservation shell 1 is provided with the controller 2, the steam heating cavity 8 is provided with a first temperature sensor 16 and a first liquid level sensor 18 electrically connected with the controller 2, the condensed water preheating cavity 9 is provided with a second temperature sensor 17 and a second liquid level sensor 19 electrically connected with the controller 2, the temperature in the steam heating cavity 8 is monitored by the first temperature sensor 16, when the temperature decreases to a set threshold value, the electromagnetic valve on the steam inlet pipe 3 is controlled to open, thereby increasing the steam inlet amount, and vice versa, the condensed water temperature in the condensed water preheating cavity 9 is detected by the second temperature sensor 17, when the condensed water temperature is lower than a set value, the electromagnetic valve on the condensed water discharge pipe 4 is opened to discharge the condensed water.

[0036] In use, the cold fluid is introduced into the pre-heat exchange assembly 12 through the cold water pipe 10, at this time the pre-heat assembly 15 is powered to heat the electric heating rod to warm the condensate water pre-heat cavity 9, thereby preliminarily pre-heating the cold fluid, at the same time the high-temperature steam is introduced into the steam heating cavity 8 in the heat preservation shell 1 through the steam inlet pipe 3, the pre-heated cold fluid is introduced into the heat exchange coil 14 through the connecting pipe 13, exchanges heat with the high-temperature steam in the steam heating cavity 8, and forms high-temperature condensate water, when the liquid level of the condensate water reaches the set threshold of the first liquid level sensor 18, the first liquid level sensor 18 transmits a signal to the controller 2, the controller 2 controls the position adjustment of the sealing cone plate by the air cylinder 61 (at the same time the power supply to the heating rod 152 is turned off), thereby connecting the steam heating cavity 8 and the condensate water pre-heat cavity 9, and making the high-temperature condensate water fall into the condensate water pre-heat cavity 9, when the second liquid level sensor 19 detects that the water level in the condensate water pre-heat cavity 9 reaches a certain height, it transmits a signal to the controller 2, so that the controller 2 controls the air cylinder 61 to reset the sealing cone plate 62, thereby avoiding too much condensate water and steam from entering the condensate water pre-heat cavity 9, in the continuous conveying process of the cold fluid, the cold fluid in the pre-heat coil 122 is pre-heated by the high-temperature condensate water, thereby improving the utilization rate of the high-temperature condensate water, reducing the heat loss, and improving the heating efficiency of the cold fluid.

[0037] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the changes, modifications, replacements and variations of the embodiments can be made by those skilled in the art without departing from the principles and spirit of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A steam heating temperature control device, characterized by, The utility model provides a steam heating device, including: The heat preservation shell (1) and the guide plate (7) that sets up in the inner chamber of heat preservation shell (1), the guide plate (7) with the top of heat preservation shell (1) forms the steam heating chamber (8) room, the guide plate (7) with the bottom of heat preservation shell (1) forms the condensed water preheating chamber (9); The preheat exchange assembly (12) and preheating assembly (15) that set up in the condensed water preheating chamber (9), the top of heat preservation shell (1) is provided with the inner tube cylinder (5), the inner tube cylinder (5) is provided with the sealing assembly (6) that seals the guide plate (7), The preheat exchange assembly (12) includes water inlet tee (121), three groups of preheating coil (122) and water outlet tee (123), one end of three groups of preheating coil (122) is connected with the water outlet end of water inlet tee (121) communication, the other end of three groups of preheating coil (122) is connected with the water inlet end of water outlet tee (123) communication, the water outlet end of water outlet tee (123) is connected with the connecting pipe (13) that passes through the guide plate (7), one end of connecting pipe (13) is connected with the heat exchange coil (14) that sets up in the steam heating chamber (8).

2. A steam heating temperature control device according to claim 1, wherein: The water inlet end of water inlet tee (121) is connected with the cold water pipe (10) that passes through heat preservation shell (1), the opposite end of heat exchange coil (14) and connecting pipe (13) is connected with the hot water pipe (11) that passes through heat preservation shell (1), heat exchange coil (14) is arranged in the steam heating chamber (8) in spiral shape.

3. A steam heating temperature control device according to claim 2, wherein: The steam heating chamber (8) is concave in cross section, the upper surface of guide plate (7) is provided with a tapered groove for condensate collection.

4. A steam heating temperature control device according to claim 3, wherein: The sealing assembly (6) includes air cylinder (61) and sealing cone plate (62), the air cylinder (61) is installed in the inner chamber bottom of inner tube cylinder (5), the sealing cone plate (62) is arranged in the steam heating chamber (8), the telescopic end of air cylinder (61) passes through inner tube cylinder (5) and is fixedly connected to the upper surface of sealing cone plate (62), the lower surface of sealing cone plate (62) is provided with a sealing plug (63) inserted in the middle part of guide plate (7).

5. A steam heating temperature control device according to claim 4, wherein: The upper end of two groups of stabilizing sleeve rods (64) is fixedly connected to the bottom of inner tube cylinder (5).

6. A steam heating temperature control device according to claim 1, wherein: The preheating assembly (15) includes two groups of mounting beams (151) installed in the condensed water preheating chamber (9), the opposite side of two groups of mounting beams (151) is provided with heating rods (152) that pass through three groups of preheating coil (122), and three groups of heating rods (152) are arranged in parallel.

7. A steam heating temperature control device according to claim 1, wherein: The outer side upper end of heat preservation shell (1) is provided with steam inlet pipe (3) that is connected with steam heating chamber (8), the outer side lower end of heat preservation shell (1) is provided with condensed water discharge pipe (4) that is connected with condensed water preheating chamber (9).

8. A steam heating temperature control device according to claim 1, wherein: The outer side of the heat preservation shell (1) is provided with a controller (2), the steam heating cavity (8) is provided with a first temperature sensor (16) and a first liquid level sensor (18) electrically connected with the controller (2), and the condensed water preheating cavity (9) is provided with a second temperature sensor (17) and a second liquid level sensor (19) electrically connected with the controller (2).

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