Sanitary internal and external water-through electric heater

Abstract

The utility model provides a sanitary internal and external water-passing electric heater. The sanitary internal and external water-passing electric heater comprises an end plate assembly; an opening of the sleeve structure is connected with the end plate assembly, an electric heating sleeve is arranged in the sleeve structure, and a heating medium shell pass sleeve is arranged in the electric heating sleeve. The inlet end and the outlet end of the U-shaped heat exchange tube set are both connected to the end plate assembly, and the U-shaped heat exchange tube set is located in the heating medium shell pass sleeve. The steam inlet and the condensate water outlet are formed in the two sides of the sleeve structure respectively. The steam electric heating device integrates two functions of steam heating and electric heating. Steam enters the sleeve structure through the steam inlet and exchanges heat with a heating medium in the heating medium shell pass sleeve. Meanwhile, the electric heating sleeve can provide extra heating capacity. Due to the double-function design, the heat exchanger can meet the heating requirements under different occasions and conditions, and the flexibility and applicability of equipment are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pharmaceutical equipment, and more specifically, relates to the technical field of a sanitary electric heater with water passing inside and outside. Background Art

[0002] With the rapid development of the pharmaceutical industry, pharmaceutical manufacturers have an increasing demand for heat exchangers in the production process. In particular, some pharmaceutical companies in newly built industrial zones in the south are often unable to provide 24-hour boiler steam supply due to production conditions. During non-production periods, the production cost of boiler steam increases significantly, which not only requires a large amount of human resources (such as management personnel, production personnel, and safety personnel), but also reduces steam consumption, and the operating loss may even exceed the demand for process equipment, which brings a huge economic burden to the company.

[0003] In addition, due to the particularity of the pharmaceutical industry, the temperature of pharmaceutical water needs to be strictly controlled to prevent the temperature from being lower than the GMP regulations, which would affect the product quality. Therefore, how to maintain constant temperature control of injection water during the period without steam supply has become an urgent problem for pharmaceutical companies.

[0004] Traditional heat exchangers usually use a single steam heating method. Although they can meet the needs of pharmaceutical companies to a certain extent, their application is greatly limited when there is no stable steam supply. At the same time, some traditional heat exchangers also have shortcomings in structural design, material selection, cleaning and maintenance, and are difficult to meet the requirements of pharmaceutical companies for hygiene, safety and reliability. Utility Model Content

[0005] The purpose of the embodiments of the present application is to provide a sanitary inside-outside water electric heater to solve the technical problems of insufficient adaptability and low heat exchange efficiency caused by single heating in the prior art.

[0006] To achieve the above purpose, the technical solution adopted in this application is: a sanitary internal and external water electric heater, comprising:

[0007] End plate assembly;

[0008] A sleeve structure, wherein an opening of the sleeve structure is connected to the end plate assembly, an electric heating sleeve is arranged in the sleeve structure, and a heat medium shell-side sleeve is arranged in the electric heating sleeve;

[0009] A U-shaped heat exchange tube group, wherein the inlet and outlet ends of the U-shaped heat exchange tube group are both connected to the end plate assembly, and the U-shaped heat exchange tube group is located in the heat medium shell-side casing;

[0010] A steam inlet and a condensed water outlet are respectively arranged on both sides of the sleeve structure.

[0011] Optionally, the U-shaped heat exchange tube group includes multiple groups of heat exchange tube groups; each group of the heat exchange tube groups includes multiple U-shaped heat exchange tubes with consistent bending diameters; all the heat exchange tubes in the same group are arranged in parallel along the longitudinal section, and all the heat exchange tubes in different groups are symmetrically arranged along the same longitudinal section; the inlet ends and outlet ends of all the heat exchange tubes form a circular array.

[0012] Optionally, the end plate assembly includes a plurality of fixing plates and covering plates; all the fixing plates are connected to the covering plates via fasteners.

[0013] Optionally, a plurality of mounting holes arranged in a circular array are provided on the fixing plate, and the mounting holes match all the heat exchange tubes.

[0014] Optionally, a pharmaceutical water inlet pipe and a pharmaceutical water outlet pipe are respectively provided on both sides of the end surface of the cover plate facing the sleeve structure; the pharmaceutical water inlet pipe corresponds to the inlet end of all the heat exchange tubes, and the pharmaceutical water outlet pipe corresponds to the outlet end of all the heat exchange tubes.

[0015] Optionally, a first semicircular groove and a second semicircular groove are provided on both sides of the end surface of the covering plate facing away from the sleeve structure; one end of the first semicircular groove is connected to the pharmaceutical water inlet pipe, and the other end of the first semicircular groove is connected to the inlet ends of all the heat exchange tubes; one end of the second semicircular groove is connected to the pharmaceutical water outlet pipe, and the other end of the first semicircular groove is connected to the outlet ends of all the heat exchange tubes.

[0016] Optionally, the pharmaceutical water inlet pipe or the pharmaceutical water outlet pipe is provided with a pipeline, the end of the pipeline is provided with a conical flange, and the end surface of the conical flange is provided with a circle of arc-shaped grooves.

[0017] Optionally, the sleeve structure is provided with a thermal insulation protective layer.

[0018] Optionally, a supporting foot structure connected to the ground is provided on one side of the sleeve structure.

[0019] Optionally, a water outlet and an air outlet are respectively provided on two sides of the sleeve structure.

[0020] The beneficial effect of the sanitary internal and external water electric heater provided by the present application is that compared with the prior art, the utility model integrates the two functions of steam heating and electric heating. Steam enters the sleeve structure through the steam inlet and exchanges heat with the heat medium in the heat medium shell sleeve; at the same time, the electric heating sleeve can provide additional heating capacity. This dual-function design enables the heat exchanger to adapt to the heating needs in different occasions and conditions, and improves the flexibility and applicability of the equipment.

[0021] In addition, the utility model adopts a U-shaped heat exchange tube group structure, and when the heat medium flows in the heat medium shell-side sleeve, it can fully exchange heat with the U-shaped heat exchange tube group, thereby improving the heat exchange efficiency. This design enables the heat exchanger to reach the required temperature more quickly under the same conditions, thereby improving the operating efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 A front view of a sanitary inside-outside water electric heater provided in an embodiment of the present application;

[0024] Figure 2 for Figure 1 A magnified image of A;

[0025] Figure 3 A side view of a sanitary inside-outside water electric heater provided in an embodiment of the present application.

[0026] Among them, the reference numerals in the figure are:

[0027] 1. End plate assembly; 11. Fixing plate; 111. Mounting hole; 12. Cover plate; 121. Pharmaceutical water inlet pipe; 122. Pharmaceutical water outlet pipe; 124. Conical flange; 125. Arc groove; 2. Sleeve structure; 21. Electric heating sleeve; 22. Heat medium shell sleeve; 23. Thermal insulation protective layer; 24. Support foot structure; 25. Drain port; 26. Exhaust port; 3. U-shaped heat exchange tube group; 31. Heat exchange tube group.

[0028] b DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0030] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0031] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] Please also read Figures 1 to 3 , now a sanitary inside-outside water electric heater provided in an embodiment of the present application includes:

[0034] End plate assembly 1;

[0035] A sleeve structure 2, an opening of the sleeve structure 2 is connected to the end plate assembly 1, an electric heating sleeve 21 is arranged in the sleeve structure 2, and a heat medium shell-side sleeve 22 is arranged in the electric heating sleeve 21;

[0036] A U-shaped heat exchange tube group 3, the inlet end 31 and the outlet end 32 of the U-shaped heat exchange tube group 3 are both connected to the end plate assembly 1, and the U-shaped heat exchange tube group 3 is located in the heat medium shell-side casing 22;

[0037] The steam inlet 41 and the condensed water outlet 42 are respectively arranged on both sides of the sleeve structure 2 .

[0038] The utility model provides a sanitary internal and external water electric heater. Compared with the prior art, the utility model adopts a U-shaped heat exchange tube group 3 structure, which enables the heat medium to fully exchange heat with the U-shaped heat exchange tube group 3 when flowing in the heat medium shell-side sleeve 22, thereby improving the heat exchange efficiency. At the same time, the inlet end 31 and the outlet end 32 of the U-shaped heat exchange tube group 3 are both connected to the end plate assembly 1. This structural layout makes the overall structure of the heat exchanger more compact and easy to install and use.

[0039] In addition, the utility model also integrates the two functions of steam heating and electric heating. Steam enters the sleeve structure 2 through the steam inlet 41 and exchanges heat with the heat medium in the heat medium shell sleeve 22. At the same time, the electric heating sleeve 21 can provide additional heating capacity to meet the heating needs in different occasions and conditions.

[0040] In another embodiment of the present application, please refer to Figure 1 The U-shaped heat exchange tube group 3 includes multiple groups of heat exchange tube groups 31; each group of heat exchange tube groups 31 includes multiple U-shaped heat exchange tubes 311 with the same bending diameter; all heat exchange tubes 311 in the same group are arranged in parallel along the longitudinal section, and all heat exchange tubes 311 in different groups are symmetrically arranged along the same longitudinal section; the inlet ends and outlet ends of all heat exchange tubes 311 form a circular array.

[0041] Each group of heat exchange tube groups 31 is composed of a plurality of U-shaped heat exchange tubes 311 with the same bending diameter. This design ensures that the heat exchange tubes 311 in the same group have the same heat exchange performance, thereby improving the overall heat exchange efficiency. In terms of arrangement, all heat exchange tubes 311 in the same group are arranged in parallel along the longitudinal section. This parallel arrangement enables the heat medium to evenly exchange heat with each heat exchange tube 311 during the flow process, thereby improving the heat exchange efficiency. All heat exchange tubes 311 in different groups are symmetrically arranged along the same longitudinal section. This symmetrical design not only makes the entire U-shaped heat exchange tube group more beautiful in appearance, but also more stable in structure. The symmetrical layout also helps to optimize the flow path of the fluid, reduce the energy loss of the fluid during the flow process, and further improve the heat exchange efficiency.

[0042] In another embodiment of the present application, please refer to Figure 1 The end plate assembly 1 includes a plurality of fixing plates 11 and a cover plate 12; all fixing plates 11 are connected to the cover plate 12 by fasteners. This modular design enables the end plate assembly 1 to have sufficient strength to support the U-shaped heat exchange tube group 3, while being easy to disassemble and repair. The cover plate 12 plays a role of sealing and protection. It can effectively prevent the leakage of heat medium or other fluids from the end plate assembly, ensuring the normal operation of the heat exchanger. At the same time, the cover plate 12 can also be used as an inlet and outlet interface, which is convenient for connection with external pipes or equipment.

[0043] In another embodiment of the present application, please refer to Figure 1 The fixing plate 11 is provided with a plurality of mounting holes 111 arranged in a circular array, and the mounting holes 111 match all the heat exchange tubes 311; the setting of the fixing plate 11 provides stable support for the U-shaped heat exchange tube group 3. By reasonably designing the number and position of the fixing plates 11, it is possible to ensure that the U-shaped heat exchange tube group maintains a stable shape during the heat exchange process, and prevent deformation or damage caused by vibration or thermal stress.

[0044] In another embodiment of the present application, please refer to Figure 1 and 3, a pharmaceutical water inlet pipe 121 and a pharmaceutical water outlet pipe 122 are respectively provided on both sides of the end surface of the cover plate 12 facing the cylinder structure 2; the pharmaceutical water inlet pipe 121 corresponds to the inlet end of all the heat exchange tubes 311, and the pharmaceutical water outlet pipe 122 corresponds to the outlet end of all the heat exchange tubes 311. The pharmaceutical water inlet pipe 121 corresponds to the inlet end of all the heat exchange tubes 311, which means that the pharmaceutical water can enter each heat exchange tube evenly through the pipeline, ensuring that each tube can effectively perform heat exchange. Similarly, the pharmaceutical water outlet pipe 122 corresponds to the outlet end of all the heat exchange tubes 311, ensuring that the pharmaceutical water after heat exchange can flow out smoothly, thereby completing the entire heat exchange process. Through this design, the heat exchanger can not only meet the demand for pharmaceutical water temperature control in the pharmaceutical process, but also ensure the flow uniformity and heat exchange efficiency of pharmaceutical water.

[0045] In another embodiment of the present application, please refer to Figure 3 The first semicircular groove 1231 and the second semicircular groove 1232 are provided on both sides of the end surface of the cover plate 12 facing away from the sleeve structure 2; one end of the first semicircular groove 1231 is connected to the pharmaceutical water inlet pipe 121, and the other end of the first semicircular groove 1231 is connected to the inlet ends of all the heat exchange tubes 311; one end of the second semicircular groove 1232 is connected to the pharmaceutical water outlet pipe 122, and the other end of the first semicircular groove 1231 is connected to the outlet ends of all the heat exchange tubes 311. After the pharmaceutical water enters the first semicircular groove 1231 from the pharmaceutical water inlet pipe 121, it enters the inlet ends of the heat exchange tubes 311 respectively, and finally the pharmaceutical water enters the second semicircular groove 1232 from the outlet end of the heat exchange tubes 311, and finally the pharmaceutical water comes out from the pharmaceutical water outlet pipe 122 through the second semicircular groove 1232.

[0046] In another embodiment of the present application, please refer to Figure 2 The end of the pharmaceutical water inlet pipe 121 or the pharmaceutical water outlet pipe 122 is provided with a conical flange 124, and the end surface of the conical flange 124 is provided with a circle of arc groove 125. The conical flange 124 helps to enhance the guidance of the fluid, ensuring that the fluid can flow in or out smoothly and efficiently; the arc groove 125 is used to accommodate sealing materials or O-rings, etc., to ensure the tightness and sealing of the connection.

[0047] In another embodiment of the present application, please refer to Figure 1 The inner wall of the sleeve structure 2 is provided with a thermal insulation layer 23. The main function of the thermal insulation layer 23 is to reduce heat loss and ensure that the heat exchange between the inside of the sleeve structure 1 and the external environment is effectively reduced. This is very important for equipment or processes that need to maintain a specific temperature.

[0048] In another embodiment of the present application, please refer to Figure 1A support foot structure 24 connected to the ground is provided on one side of the sleeve structure 2. The main function of the support foot structure 24 is to connect to the ground and provide stable support for the entire sleeve structure 2. This helps prevent the equipment from shaking or tipping over due to instability, thereby ensuring the normal operation and safe operation of the equipment.

[0049] In another embodiment of the present application, please refer to Figure 1 , a drain port 25 and an exhaust port 26 are respectively provided on both sides of the sleeve structure 2. The main function of the drain port 25 is to discharge the liquid that may accumulate inside the sleeve structure. These liquids may come from condensed water generated in the process, leaked liquid or other sources. By discharging these liquids in time, it is possible to prevent the liquids from corroding the equipment, affecting the normal operation of the equipment or causing other potential problems. The main function of the exhaust port 26 is to discharge the gas that may accumulate inside the sleeve structure. These gases may come from steam generated in the process, gas emissions or other sources. By discharging these gases, the air circulation inside the equipment can be maintained to prevent problems such as pressure increase, equipment failure or process instability caused by gas accumulation.

[0050] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A sanitary internal and external water electric heater, characterized in that: include: End plate assembly; A sleeve structure, wherein an opening of the sleeve structure is connected to the end plate assembly, an electric heating sleeve is arranged in the sleeve structure, and a heat medium shell-side sleeve is arranged in the electric heating sleeve; A U-shaped heat exchange tube group, wherein the inlet and outlet ends of the U-shaped heat exchange tube group are both connected to the end plate assembly, and the U-shaped heat exchange tube group is located in the heat medium shell-side casing; A steam inlet and a condensed water outlet, wherein the steam inlet and the condensed water outlet are respectively arranged on both sides of the sleeve structure; One side of the sleeve structure is provided with a supporting foot structure connected to the ground; A water outlet and an air outlet are respectively arranged on both sides of the sleeve structure.

2. A sanitary internal and external water electric heater as claimed in claim 1, characterized in that: The U-shaped heat exchange tube group includes multiple groups of heat exchange tube groups; each group of the heat exchange tube groups includes multiple U-shaped heat exchange tubes with the same bending diameter; all the heat exchange tubes in the same group are arranged in parallel along the longitudinal section, and all the heat exchange tubes in different groups are symmetrically arranged along the same longitudinal section; the inlet ends and outlet ends of all the heat exchange tubes form a circular array.

3. A sanitary internal and external water electric heater as claimed in claim 2, characterized in that: The end plate assembly includes a plurality of fixing plates and a cover plate; all the fixing plates are connected to the cover plate via fasteners.

4. A sanitary internal and external water electric heater as claimed in claim 3, characterized in that: The fixing plate is provided with a plurality of mounting holes arranged in a circular array, and the mounting holes match all the heat exchange tubes.

5. A sanitary internal and external water electric heater as claimed in claim 3, characterized in that: A pharmaceutical water inlet pipe and a pharmaceutical water outlet pipe are respectively provided on both sides of the end surface of the cover plate facing the sleeve structure; the pharmaceutical water inlet pipe corresponds to the inlet end of all the heat exchange tubes, and the pharmaceutical water outlet pipe corresponds to the outlet end of all the heat exchange tubes.

6. A sanitary internal and external water electric heater as claimed in claim 5, characterized in that: A first semicircular groove and a second semicircular groove are provided on both sides of the end surface of the covering plate facing away from the sleeve structure; one end of the first semicircular groove is connected to the pharmaceutical water inlet pipe, and the other end of the first semicircular groove is connected to the inlet ends of all heat exchange tubes; one end of the second semicircular groove is connected to the pharmaceutical water outlet pipe, and the other end of the first semicircular groove is connected to the outlet ends of all heat exchange tubes.

7. A sanitary internal and external water electric heater as claimed in claim 5, characterized in that: The pharmaceutical water inlet pipe or the pharmaceutical water outlet pipe is provided with a pipeline, the end of the pipeline is provided with a conical flange, and the end surface of the conical flange is provided with a circle of arc-shaped grooves.

8. A sanitary internal and external water electric heater as claimed in claim 1, characterized in that: The sleeve structure is provided with a thermal insulation protection layer.

Images