Hospital ward hot water application

2019-04-24 14:21:54

I. Introduction

 

With the rapid development of modern medical science, new technologies and new medical equipment emerge in an endless stream, and hospital buildings are also facing new design concepts. As an indispensable hot water system, it is not only necessary to meet the domestic hot water demand of inpatients and medical staff, but also must be safe and reliable, and reasonably energy-saving.

 

Air source heat pump water heaters can play a vital role in hospital hot water solutions because of their environmental protection, high efficiency, energy saving, safety and reliability.

 

Second, the solution

 

Take the hot water project of a hospital inpatient building ward as an example.

 

1. Project Overview: The total construction area of ​​a hospital is 170,000 square meters, and 2,500 beds can be opened. The air source heat pump system is now used to provide domestic hot water for the ward.

 

Hospital requirements:

 

1 Meet the 24-hour hot water needs of inpatients and medical staff.

 

2 The equipment is safe and reliable in operation, high in stability, and the unit noise is relatively weak.

 

3 The equipment is intelligently operated, no need to be supervised by the person, and the alarm will be automatically triggered in case of failure.

 

4 Unit failure can be repaired in time, regular maintenance and maintenance.

 

2. Meteorological parameters

 

3. Design basis

Building Water Supply and Drainage Design Manual

Design code for building water supply and drainage (GB50015-2003)

Design code for building water supply and drainage and hot water supply

Water supply and drainage national building standard design atlas

Heat pump water heater for commercial or industrial use and similar purposes (GB/T 21362-2008)

Heat pump hot water system selection and installation (06SS127)

Heat pump product samples and instructions (Guangzhou Yaohua Refrigeration Equipment Co., Ltd.)

Operation data of heat pump intelligent environment simulation laboratory (Guangzhou Yaohua Refrigeration Equipment Co., Ltd.)

Information provided by the hospital and on-site survey

 

Note: Although the relevant data in the above tables cannot fully reflect all the operational data, it can reflect the main operating costs of the system from a relatively macroscopic aspect. B, D, E are boiler-type schemes, which need to increase the daily maintenance, inspection and management personnel costs of the boiler. Among them, the natural gas pipeline laying needs to increase the account opening fee; C is the steam heat exchange scheme, which also needs to increase the account opening cost, equipment daily Maintenance, inspection and management personnel costs. A is a heat pump hot water solution, which can realize unmanned management throughout the year, the system runs automatically, there is no high-risk equipment such as pressure vessels, and the safety performance is stronger than the boiler.

 

Third, the conclusion

The air source heat pump hot water system used by the hospital has the characteristics of safety and reliability, low noise, constant temperature water, and intelligent management to meet the hot water demand of inpatients and medical staff.